US3602150A - Suspended trolley conveyor system - Google Patents

Suspended trolley conveyor system Download PDF

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Publication number
US3602150A
US3602150A US820897A US3602150DA US3602150A US 3602150 A US3602150 A US 3602150A US 820897 A US820897 A US 820897A US 3602150D A US3602150D A US 3602150DA US 3602150 A US3602150 A US 3602150A
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United States
Prior art keywords
inner race
shaft
central body
wheel
members
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US820897A
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English (en)
Inventor
Ruben E Frost
Fredrick R Sytsma
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CL Frost and Son Inc
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CL Frost and Son Inc
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Publication date
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B13/00—Other railway systems
    • B61B13/04—Monorail systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/09—Arrangements of bearing or sealing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006—Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/58—Conveyor systems, e.g. rollers or bearings therefor

Definitions

  • This disclosure relates to a trolley construction, preferably for a power-and-free conveyor system, wherein a central casting is supported on either side by a plurality of wheels.
  • Each wheel has an outer race and an inner race separated by bearings.
  • the inner race of each wheel is removably fixed to a shaft which extends from a central casting so that the wheels can be removed and replaced or repaired.
  • This invention relates to a trolley assembly. In one of its aspects, it relates to a trolley assembly wherein roller bearing wheels have inner race members keyed to a central casting and wherein the wheels are removably secured to a supporting shaft.
  • the invention in another of its aspects, relates to a trolley assembly wherein roller bearing wheels support a central casting and the inner race of the wheels is keyed to a shaft on which it is supported.
  • the invention in another of its aspects, relates to a trolley assembly wherein a central casting is supported on either side by a plurality of roller bearing wheels, wherein the roller bearing wheels are removably secured to supporting shafts which extend out from the central casting.
  • Power-and-free conveyor systems are overhead conveyors having a trolley with a central casting for supporting work arti- .11,
  • the trolleys are driven by a power actuated element or the trolleys are released for free running or storage.
  • the central casting is supported on roller bearing wheels through shafts which extend out of the casting.
  • the wheels are put onto the shafts by swedging the end of the shaft after the wheels have been put on the shaft so that the wheel is retained on the shaft by the expanded end.
  • the inner race of the wheels occasionally becomes disengaged from the shaft and rotates on the shaft, thereby machining the shaft. At this point, the entire shaft and the wheels need to be replaced. If the defective wheel continues to rotate on the shaft, the result is that the shaft breaks and the casting separates from the wheel. As the casting is quite heavy, a dangerous condition results.
  • one or more of the fol-- lowing, or other, objects can be obtained.
  • a trolley assembly wherein a central body is supported on opposing sides by first and second wheel members, a shaft extends through the central body and joins the first and second wheel members, supporting the central body thereon.
  • Each of the wheel members includes an inner race and an outer race separated by bearing members.
  • Means are provided on the shaft to removably secure each inner race member to the shaft. lnterloclring means are fixed between the inner race member and the shaft member to prevent relative rotation between the shaft and the inner race member.
  • means are provided between each of the inner race members and the central body to prevent relative rotation between the inner race members and the central body.
  • the invention in another embodiment, relates to a powerand-free conveyor system comprising a central supporting member, a shaft means extending out of either side of the central supporting member, and wheel means on the shaft means adapted to roll on inwardly directed tracks.
  • Each of the wheel means comprises an outer race member, an inner race member, and bearing means between the outer and inner race members, means for sealing lubricant between the outer and inner race members.
  • Means are provided for removably fixing each of the inner race members to the shaft means so that each of the wheels can be removed and replaced or disassembled without destroying the structure of the shaft means or the wheel members.
  • FIG. l is a side elevational view, partly in section, of a power-and-free conveyor system employing a first embodimerit of the invention
  • E is an elevational view, in section, taken along lines i' 'lrll. l; MG. 3 is a sectional view seen along lines 3-3 of FIG. 2; and
  • ilG. 4 is a sectional view similar to FIG. 1 showing a second embodiment of the invention.
  • a power-and-free trolley assembly in which a central casting 12 is supported by wheels 14 on one side and wheels lid on the other side. The wheels ride on rail forming channels ill and 20 which are directed inwardly.
  • the trolley can be driven by a cog l3 which is attached to a separate conveyor chain (not shown l. Alternately the cog 13 can be disengaged from the casting l2 so that the casting can be pushed along the rails iii and M) by hand, or remain in a storage bank.
  • Each wheel of the trolley assembly has an outer race 22 and an inner race 224 which are separated by ball bearings 26.
  • Each inner seal structure 23 seals lubricant into the bearing area and a Welsh plug 30 seals the lubrication on the outer side of the wheels.
  • a grease fitting 32 is provided on the Welsh plug Elli for t-e introduction of lubricants into the bearing area of each wheel.
  • Each inner race 24 has a projecting lug 34 extending axially inwardly and radially inwardly.
  • Each inner race 24 is fixed onto a stud shaft 36 through threaded end plugs 44 which threadably engage the ends of the shaft.
  • Each inner race 24 has an annular bevel 42 against which bears an expanded head of the threaded end plug 44.
  • An Allen wrench hole 46 is provided in the end of the end plug 44 to facilitate fixing and removing of the threaded end plug to the stud shaft 36.
  • a slot 38 is milled longitudinally along a side of the stud shaft 36 and engages the projecting lugs 34 of the inner races 24.
  • the casting 12 has a circular bore 48 in which the stud shaft 36 is positioned. Slots 50 and 52 are milled at the upper ends of the annular bore 48 for engaging the projecting lugs 34 of the inner race members.
  • the trolley assembly is easily constructed by inserting the shaft 36 into the casting bore 48, putting the wheels on the shaft such that the projecting lugs 34 engage the milled slots 50 and 52 in the casting, and engage the milled slot 38 in the stud shaft 36.
  • the threaded end plugs 44 are then screwed into the ends of the stud shaft 36 to hold the wheels onto the stud shaft 36.
  • the Welsh plugs 30 are then inserted into the outer ends of the wheel to seal off the bearing area.
  • the Welsh plug is removed and the end plug 44 is unscrewed.
  • the wheels can be removed from the stud shaft 36 by inserting an allen wrench into the hole 46 and unscrewing the end plug 44. The wheel is then simply pulled from the stud shaft and a new wheel replaced.
  • This ease of wheel replacement is of substantial advantage in reducing replacement costs and reducing maintenance costs.
  • the replacement of wheels and axles takes place while the trolley is in place in the conveyor system without the need to shut down the conveyor for substantial lengths of time or without the need to destroy the casting or remove the same from the system.
  • the keying of the inner race to the stud shaft 36 maintains the inner race 24 fixed relative to the stud shaft 36 so that there is no wear between the stud shaft and the inner race. .Further, the keying of the inner race to the casting 12 through the slots 50 and 52 prevent relative rotation and relative movement between the casting l2 and the inner race 24. Further, the projecting lugs 34 prevent relative rotation between the casting l2 and the stud shaft 36 thereby eliminating wear on the stud shaft 36 due to relative movement between the bore 48 of the casting l2 and the stud shaft 36.
  • the existing trolley assemblies can be modified .to use the invention by simply milling slots 50 and 52 in the casting 12.
  • the conveyor system is easily adaptable to existing systems.
  • FIG. 4 there is shown a modified form of the invention.
  • Wheels 62 and 64 are removable fixed to a stud shaft 98 which supports a central casting 12.
  • the wheel 62 has an inner race 66 and an outer race 68 which are separated by ball bearings 70.
  • An outer seal 72 and an inner seal 74 close off the bearing area to retain lubrication therein.
  • a tapped hole 76 is provided in the race 72 for receiving a threaded end 100 of the stud shaft 98.
  • the inner race 66 also has a lubricating passage 82 which communicates at one end with the bearing area and at the other end with an annular counterbore 80.
  • a projecting lug 78 extends inwardly from the inner race 66.
  • the wheel 64 has an inner race 83 and an outer race 84 separated by ball bearings86.
  • An inner seal 88 and an outer seal 90 close off the bearing area to retain lubrication therein.
  • a projecting lug 92 is formed on an innner edge of the inner race 83.
  • a lubricating passage 94 communicates at one end with the bearing area and at the other end with an annular counterbore 95.
  • a circulatr bore 96 is formed in the outer end of the inner race 83 for receiving the head 102 of the stud shaft 98.
  • An allen wrench hole 104 to facilitate the attaching and detaching of the stud shaft 98 to the wheels.
  • Lubricating passages 108 and 106 are bored, respectively, in either end of the stud shaft 98 to permit lubricant to pass into the bearing area from the outside of the wheels. For this purpose, lubricating nipples are placed in the end of each lubricating passage.
  • the casting 12 has milled slots 50 and 52 as in the first embodiment to engage the projecting lugs 78 and 92 from the inner races 66 and 83 respectively.
  • the central casting 12 is keyed to the inner race of each respective wheel. Thus, relative movement between the inner races and the central casting 12 is eliminated.
  • the shaft 98 is merely rotated with the aid of an allen wrench inserted into hole 104.
  • the stud shaft 98 is removed by withdrawing it to the left as viewed in FIG. 4.
  • the wheels 62and 64 are then easily removed and serviced or replaced.
  • the inner race 66 will not rotate since it is keyed through projecting lugs 78 to the central casting 12.
  • the wheels and axles can be replaced and repaired while the trolley is in the system and with'the same ease as the embodiment illustrated in FIGS. 1-3.
  • lubrication is easily supplied to the bearing area through the lubrication passages indicated.
  • FIG. 4 has been described with a threaded engagement between the stud shaft 98 and the inner race 66, it is within the scope of this invention to provide a counterbore within the inner race 66 and to provide a threaded plug to secure the inner race to the stud shaft, the threaded plug threadably engaging the stud shaft.
  • a shaft means extends out from said central body and is fixed to said wheel members so that said central body is supported on said wheel members, each of said first and second wheel members including an inner race and an outer race separated by bearing members, the improvement which comprises:
  • interlocking means between said inner race members and said shaft member to prevent rotation between said shaft and said inner race member.
  • a trolley assembly according to claim 1 further comprising means interlocking said central body and said inner race.
  • a trolley assembly according to claim 1 further comprising means interlocking said central body with said shaft means.
  • a trolley assembly according to claim 1 wherein said removably securing means comprises at least one threaded end plug which threadably engages an end of said shaft means and bears against an outer portion of said inner race.
  • a trolley assembly according to claim 1 wherein said removably securing means comprises a pair of end plugs, each inner race being fixed to said shaft means through an end plug,
  • each end plug having a head member abutting against an outer portion of said inner race, and a stud portion extending through said inner race from said head member, said stud portion threadably engaging an end portion of said shaft means.
  • a trolley assembly according to claim wherein said interlocking means comprises a milled slot in said shaft means and a key member on said inner race projecting into said milled slots.
  • a trolley assembly according to claim 6 further comprising a milled slot in said central body adjacent said inner race, said key member projecting into said central body milled slot whereby said central body is keyed to said inner race.
  • said interlocking means comprises a milled slot in said shaft member and a key member on said inner race projecting into said milled slot.
  • a trolley assembly according to claim 1 further comprising lubricating passages between the outside portion of said first and second wheel members and said bearings, and means sealing said bearings to maintain lubrication within said outer and inner races.
  • one of the portions of the shaft means which extends from one side of said central body includes a head in abutting engagement with the inner race of one of the wheel members and the other portion of the shaft means which extends from the other side of said central body includes a threaded portion threaded into a threaded opening in the inner race of the other wheel member.
  • a trolley assembly wherein a central body is supported on opposing sides by first and second wheel members, a shaft means having portions extending out of both sides of said central body, and said first and second wheel members are fixed onto said shaft means so that said central body is supported by said wheel members through said shaft, each of said first and second wheel members including an inner race and an outer race separated by bearing members, the improvement which comprises:
  • said portions of said shaft means each having an axial threaded opening in the end thereof and a threaded end plug removably secured therein whereby said shaft means is removably secured to each of said inner race members.
  • a trolley assembly according to claim 13 further comprising a milled slot in said central body adjacent said inner race, and a key member on said inner race projecting into said central body milled slot wherein said central body is keyed to said inner race.
  • a power-and-free conveyor system comprising:
  • wheel means adapted to roll on inwardly directed tracks
  • each of said wheel means comprising an outer race member, an inner race member and bearing means between said outer and inner race members;
  • each of said. inner race members means removably fixing each of said. inner race members to said shaft meanssuch that each of said wheels can be removed and replaced or disassembled without destroying the structure of said shaft or said wheel members;
  • said means including a head on one end of said shaft in abutting engagement with the inner race of one of said wheel members, and a threaded portion on the other end of said shaft, the inner race of the other of said wheel members having a tapped hole to 'threadably engage said threaded portion of said shaft.
  • a power-and-free conveyor system further comprising a lubricating passage from the outside of each wheel to said bearing area between said inner race member and said outer race member.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mounting Of Bearings Or Others (AREA)
US820897A 1969-05-01 1969-05-01 Suspended trolley conveyor system Expired - Lifetime US3602150A (en)

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US82089769A 1969-05-01 1969-05-01

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787925A (en) * 1972-12-07 1974-01-29 Fei Inc Plastic wheel assembly for overhead conveyors
US3869989A (en) * 1973-03-30 1975-03-11 Redman Fisher Eng Ltd Conveyor
US3899226A (en) * 1973-05-29 1975-08-12 Frost & Son C L Bearing assembly
US3951076A (en) * 1974-09-20 1976-04-20 American Chain & Cable Company, Inc. Trolley construction
US3995920A (en) * 1973-08-06 1976-12-07 Bucha Louis J Roller bearing
US4215905A (en) * 1977-11-08 1980-08-05 Nakanishi Metal Works Co., Ltd. Wheel assembly with bearings
US4236456A (en) * 1978-11-13 1980-12-02 Columbus Mckinnon Corporation Trolley suspension
US4265181A (en) * 1978-11-13 1981-05-05 Columbus Mckinnon Corporation Rolling bearing wheel and hub support combination
US4364614A (en) * 1980-07-02 1982-12-21 C. L. Frost & Son, Inc. Removal method for removable closure member for bearing units
US4367905A (en) * 1980-11-19 1983-01-11 C. L. Frost & Son, Inc. Wheeled support assembly for conveyors with locking and fastening feature
US4502738A (en) * 1980-11-19 1985-03-05 C. L. Frost & Son, Inc. Wheeled support assembly for conveyors with locking and fastening feature
US4798149A (en) * 1982-12-02 1989-01-17 Florkey's Conveyor Service, Inc. Wheel lock assembly
US4858752A (en) * 1988-02-04 1989-08-22 Dynamic Conveyor Products Wheel assembly for conveyer system
US4993328A (en) * 1988-08-22 1991-02-19 Allor Manufacturing, Inc. Trolley assembly
US4997221A (en) * 1989-01-30 1991-03-05 Ed. Scharwachter Gmbh & Co. Kg. Door fastener for motor vehicle doors
US5277126A (en) * 1993-03-19 1994-01-11 Allor Manufacturing, Inc. Trolley roller assembly
US5398618A (en) * 1991-02-26 1995-03-21 Vfv Polymers Pty. Ltd. Conveyor trolley wheel assembly
US5975187A (en) * 1997-08-15 1999-11-02 Chou; Tser-Wen Self-centering distributed load blind & drapery system
WO2002061293A1 (fr) * 1999-12-06 2002-08-08 Plesh Ronald L Sr Roue à paliers pour transporteurs et analogue
US6454361B1 (en) * 2001-04-30 2002-09-24 Desmond G. Martin Skateboard wheel cover rim
US6561559B1 (en) * 1998-03-23 2003-05-13 Skf Engineering And Research Centre B.V. Bearing unit, in particular railway axlebox bearing unit, having improved anti-fretting behavior
US6702350B1 (en) * 2002-09-18 2004-03-09 Ridg-U-Rak, Inc. Bolted axle wheel assembly
US6863111B1 (en) 2000-10-03 2005-03-08 Tser-Wen Chou Positive engagement end stop for window covering systems
US20090044719A1 (en) * 2007-08-14 2009-02-19 Frost, Inc. Trolley assembly with non-rotatable axle
US7537389B1 (en) * 2005-09-09 2009-05-26 Precision Industries Of Brevard, Inc. Bearing assembly for security and storm shutter
US20090322170A1 (en) * 2005-09-15 2009-12-31 Katsunori Sone Rolling Bearing, Spindle Support Structure of Main Motor for Railway Vehicle, and Bearing Structure
US8850659B2 (en) * 2011-11-03 2014-10-07 K. Bradley Ewing Top hung sliding panel apparatus and method
US20180031033A1 (en) * 2016-07-26 2018-02-01 AMF automation Technologies, LLC Axle and bearing for conveyor chain link
US20180259037A1 (en) * 2016-07-26 2018-09-13 AMF automation Technologies, LLC Axle and bearing for conveyor chain link
EP4477905A4 (fr) * 2022-06-17 2025-07-02 Nippon Thompson Co Ltd Module de palier suiveur
USD1103547S1 (en) * 2022-12-22 2025-11-25 Sayfa R&D Pty Ltd Fall protection safety rail trolley

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553621A (en) * 1896-01-28 Self-oiling hub for bicycles
US556249A (en) * 1896-03-10 Ball-bearing mechanism
US605208A (en) * 1898-06-07 Wheel-hub
US867283A (en) * 1906-12-26 1907-10-01 Oscar F Mann Hanger for doors.
US1869893A (en) * 1931-02-25 1932-08-02 Charles S Haddlesay Car for monorail systems
US1909230A (en) * 1931-12-07 1933-05-16 Fed Bearings Co Inc Mounting structure for antifriction bearings
US2054861A (en) * 1930-11-07 1936-09-22 American Steel Foundries Wheel and axle assembly
US2129380A (en) * 1936-10-24 1938-09-06 Webster M F G Company Chain conveyer
US2280659A (en) * 1938-07-30 1942-04-21 Messerschmitt Boelkow Blohm Antifriction bearing
US2309985A (en) * 1940-11-08 1943-02-02 Skf Ind Inc Treadle roll for looms
US2916335A (en) * 1957-08-12 1959-12-08 Acme Ball Bearing & Mfg Co Bearing assembly
US3033128A (en) * 1960-08-16 1962-05-08 Anchor Steel And Conveyor Comp Split shaft trolley construction for power-and-free conveyor system
US3049083A (en) * 1961-07-03 1962-08-14 Midwest Conveyor Company Inc Conveyor trolley

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553621A (en) * 1896-01-28 Self-oiling hub for bicycles
US556249A (en) * 1896-03-10 Ball-bearing mechanism
US605208A (en) * 1898-06-07 Wheel-hub
US867283A (en) * 1906-12-26 1907-10-01 Oscar F Mann Hanger for doors.
US2054861A (en) * 1930-11-07 1936-09-22 American Steel Foundries Wheel and axle assembly
US1869893A (en) * 1931-02-25 1932-08-02 Charles S Haddlesay Car for monorail systems
US1909230A (en) * 1931-12-07 1933-05-16 Fed Bearings Co Inc Mounting structure for antifriction bearings
US2129380A (en) * 1936-10-24 1938-09-06 Webster M F G Company Chain conveyer
US2280659A (en) * 1938-07-30 1942-04-21 Messerschmitt Boelkow Blohm Antifriction bearing
US2309985A (en) * 1940-11-08 1943-02-02 Skf Ind Inc Treadle roll for looms
US2916335A (en) * 1957-08-12 1959-12-08 Acme Ball Bearing & Mfg Co Bearing assembly
US3033128A (en) * 1960-08-16 1962-05-08 Anchor Steel And Conveyor Comp Split shaft trolley construction for power-and-free conveyor system
US3049083A (en) * 1961-07-03 1962-08-14 Midwest Conveyor Company Inc Conveyor trolley

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3787925A (en) * 1972-12-07 1974-01-29 Fei Inc Plastic wheel assembly for overhead conveyors
US3869989A (en) * 1973-03-30 1975-03-11 Redman Fisher Eng Ltd Conveyor
US3899226A (en) * 1973-05-29 1975-08-12 Frost & Son C L Bearing assembly
US3995920A (en) * 1973-08-06 1976-12-07 Bucha Louis J Roller bearing
US3951076A (en) * 1974-09-20 1976-04-20 American Chain & Cable Company, Inc. Trolley construction
US4215905A (en) * 1977-11-08 1980-08-05 Nakanishi Metal Works Co., Ltd. Wheel assembly with bearings
US4236456A (en) * 1978-11-13 1980-12-02 Columbus Mckinnon Corporation Trolley suspension
US4265181A (en) * 1978-11-13 1981-05-05 Columbus Mckinnon Corporation Rolling bearing wheel and hub support combination
US4364614A (en) * 1980-07-02 1982-12-21 C. L. Frost & Son, Inc. Removal method for removable closure member for bearing units
US4367905A (en) * 1980-11-19 1983-01-11 C. L. Frost & Son, Inc. Wheeled support assembly for conveyors with locking and fastening feature
US4502738A (en) * 1980-11-19 1985-03-05 C. L. Frost & Son, Inc. Wheeled support assembly for conveyors with locking and fastening feature
US4798149A (en) * 1982-12-02 1989-01-17 Florkey's Conveyor Service, Inc. Wheel lock assembly
US4858752A (en) * 1988-02-04 1989-08-22 Dynamic Conveyor Products Wheel assembly for conveyer system
US4993328A (en) * 1988-08-22 1991-02-19 Allor Manufacturing, Inc. Trolley assembly
US4997221A (en) * 1989-01-30 1991-03-05 Ed. Scharwachter Gmbh & Co. Kg. Door fastener for motor vehicle doors
US5398618A (en) * 1991-02-26 1995-03-21 Vfv Polymers Pty. Ltd. Conveyor trolley wheel assembly
US5277126A (en) * 1993-03-19 1994-01-11 Allor Manufacturing, Inc. Trolley roller assembly
US5975187A (en) * 1997-08-15 1999-11-02 Chou; Tser-Wen Self-centering distributed load blind & drapery system
US6561559B1 (en) * 1998-03-23 2003-05-13 Skf Engineering And Research Centre B.V. Bearing unit, in particular railway axlebox bearing unit, having improved anti-fretting behavior
WO2002061293A1 (fr) * 1999-12-06 2002-08-08 Plesh Ronald L Sr Roue à paliers pour transporteurs et analogue
US6494622B2 (en) 1999-12-06 2002-12-17 Ronald L. Plesh, Sr. Bearing wheel for conveyors and the like
US6863111B1 (en) 2000-10-03 2005-03-08 Tser-Wen Chou Positive engagement end stop for window covering systems
US6454361B1 (en) * 2001-04-30 2002-09-24 Desmond G. Martin Skateboard wheel cover rim
US6702350B1 (en) * 2002-09-18 2004-03-09 Ridg-U-Rak, Inc. Bolted axle wheel assembly
US7537389B1 (en) * 2005-09-09 2009-05-26 Precision Industries Of Brevard, Inc. Bearing assembly for security and storm shutter
US8227950B2 (en) * 2005-09-15 2012-07-24 Ntn Corporation Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structure
US20090322170A1 (en) * 2005-09-15 2009-12-31 Katsunori Sone Rolling Bearing, Spindle Support Structure of Main Motor for Railway Vehicle, and Bearing Structure
US8044544B2 (en) * 2005-09-15 2011-10-25 Ntn Corporation Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structure
US20120027332A1 (en) * 2005-09-15 2012-02-02 Ntn Corporation Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structure
US20090044719A1 (en) * 2007-08-14 2009-02-19 Frost, Inc. Trolley assembly with non-rotatable axle
US8850659B2 (en) * 2011-11-03 2014-10-07 K. Bradley Ewing Top hung sliding panel apparatus and method
US20180031033A1 (en) * 2016-07-26 2018-02-01 AMF automation Technologies, LLC Axle and bearing for conveyor chain link
US20180259037A1 (en) * 2016-07-26 2018-09-13 AMF automation Technologies, LLC Axle and bearing for conveyor chain link
US10533634B2 (en) * 2016-07-26 2020-01-14 AMF automation Technologies, LLC Axle and bearing for conveyor chain link
US10550881B2 (en) * 2016-07-26 2020-02-04 AMF automation Technologies, LLC Axle and bearing for conveyor chain link
EP4477905A4 (fr) * 2022-06-17 2025-07-02 Nippon Thompson Co Ltd Module de palier suiveur
USD1103547S1 (en) * 2022-12-22 2025-11-25 Sayfa R&D Pty Ltd Fall protection safety rail trolley

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