US1791321A - Embroidering machine - Google Patents

Embroidering machine Download PDF

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Publication number
US1791321A
US1791321A US249506A US24950628A US1791321A US 1791321 A US1791321 A US 1791321A US 249506 A US249506 A US 249506A US 24950628 A US24950628 A US 24950628A US 1791321 A US1791321 A US 1791321A
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US
United States
Prior art keywords
shaft
feeding
feed
cam
foot
Prior art date
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
Application number
US249506A
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English (en)
Inventor
Myers Walter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Singer Co
Original Assignee
Singer Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Singer Co filed Critical Singer Co
Priority to US249506A priority Critical patent/US1791321A/en
Priority to US309143A priority patent/US1791322A/en
Priority to FR683138D priority patent/FR683138A/fr
Priority to CH142413D priority patent/CH142413A/de
Application granted granted Critical
Publication of US1791321A publication Critical patent/US1791321A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05C—EMBROIDERING; TUFTING
    • D05C7/00—Special-purpose or automatic embroidering machines

Definitions

  • EMBROIDERING MACHINE I Filed Jan. 26. 1928 2 Sheets-Sheet 2 INVENTOR IVa/fer 11/ em WITNESS ZY l a ATTORNEY Patented Feb. 3, 1931 UNHE, sraas WALTER MYERS, F BRIIDG'EPORT, CONNECTICUT, ASSIGNOR TO THE SINGERTMAN'U- FACTURING COIVIPANY, 0F ELIZABETH, NEW JERSEY, A CORPORATION OF NEW JERSEY EMBROIDEB-ING MACHINE Application filed January 26, 1928. Serial No. 249,506.
  • This invention relates to improvements in sewing machines for embroidering and more especially to embroidering machines of the type having a universal work-feeding mechanism directionally controllable manually during the operation of the machine as exemplified, for instance, by the disclosure, in my prior Patent No. 1,325,038, Dec. 16, 1919.
  • the present invention has for its primary 1o object to adapt universal-feed embroidering machines for conveniently sewing or embroidering any portion of work of large sizes, such as carpets or rugs.
  • the machine is constructed with a cloth-plate and overhanging bracket-arm sufficiently long to conveniently accommodate wide work, such as rugs, etc.
  • the reciprocatory looper-operating shaft is actuated by w 513 means of a bell-crank lever, which inthe present instance is fulcrumed above the clothplate of the machine and preferably within the bracket-arm standard, whereby said lever is disposed entirely within the machineframe outline.
  • a hand-crank is provided upon a short, vertical shaft journaled in the machine bracketarm adjacent its head, which hand-crank controlled shaft is directly geared to the feeddirection controlling shaft journaled in said bracket-arm, in order to manually control the direction of feed.
  • the hand-crank is operable to control a stop-motion device through connecting mechanism housed within the machine bracket-arm, means being'provided for conveniently locking a part of said mechanism in position to permit continuous operation of the machine without requiring theusual control by the hand-crank.
  • the work-plate 0f the machine surrounding the needle-aperture therein is dished andhas a center of curvature corresponding to the point of intersectionof the transverse pivotal axes of the feedingfoot carrying bar, whereby the feeding-foot uniformly engages the work throughout feeding movements in any direction and has no tendency to either distort or full the work by reason of the pivotal axes of the feedfbar.
  • l is a front side view in elevation and partly in section of a machine containing the present improvements, the bracket-arm cover-plate being removed.
  • Fig. 2 is a front end elevation of the machine bracket-arm head and bed-plate, the feedingfoot being partly broken away.
  • Fig. 3 is a detail view of the device employed for yieldingly holding the needle-actuating shaft of the machine in inoperative position.
  • Fig. 4 comprises perspective views of the feed-finger actuating cam and its support,
  • the sewing machine is constructed with a cloth or bed-plate 1,.from which rises the vertical standard 2 of the overhanging bracket-arm 3, terminating in the head 4 to which is suitably secured the supporting frame 5.
  • a short actuating shaft 6 carrying at its outer end the combined balance-wheel and belt-pulley 7.
  • the shaft 6 is axis, in bearings provided in the supporting frame 5, is a cylinder 10 within the upper end of which is splined a short, hollow needle-bar 11 partaking of any rotations of the cylinder and capable of vertical reciprocations with respect to said cylinder.
  • a set-screw 12 Secured within the needle-bar by a set-screw 12 is ahook-needle 13,'the needle-bar 11 being operativelyconnect-ed with a driver 14; vertically reciprocated in the usual manner from the shaft 9.
  • a vertical axis loopcr 15 upon the upper end of a shaft suitably journaled upon themachineframe and having a spiral-gear 16 in mesh with a spiral driving- .gear 17 upon the forward end of a rotary and endwise-reciprocatory shaft 18.
  • the spiralgear 17 is adjustably secured upon the shaft 18 so that it may be shifted upon said shaft to partially rotate the looper with respect to the needle according to'whether it isdesired to produce chainor drop-stitches.
  • the spiral-gear 17 is formed at one end with an internally recessedhead. 19 receiving a.
  • coil-sprinr.20 which acts in a direction to yieldin glyseat upon a pin 21, providedupon the shaft 18, the selected one of two notches, .as'22, at the opposlte ends of a slot 23, formed in the head 19 which slot is of suliicicnt .width to permit passage of the pin21. It will 17-upon the shaft 18 in adirection to compress the spring 20 said. gear. lizmay-be rotated upon the shaft 18 so that the selected one of the two notches 22 may be caused to engage the pin 21. Consequently the spiral-gear 17 may be locked to the shaft 18 in either of the positions defined by the notches 22, which notches are properly spaced to obtain the desired looper positions for producing either drop or chain-stitches.
  • the hub 35 of the eccentric 34 is embraced by the correspondingly recessed flange 36 of a cam-sleeve 37, provided with a camgroove '38 and slidingly mount-ed upon the shaft 9.
  • PrO ecting from the flange 36 is. a coupling pin 39, slidable endwise through an aperture provided in the-eccentric34: and adapted to enter an aperture ina coupling-collar 10 fixed upon the shaft 6.
  • -Bearingagainst the camsleeve 37 is .acoil-spring 41, surrounding the shaft 9- and interposed between said cam-sleeve and collar42 fixed upon the shaft-9. .Whenpermitted, the spring acts to cause coupling engagementof. the pin 39 with the collar 40 whereby the shaft "9 i joined to the shaft 6 for rotation therewith.
  • -Means are provided for normally holding lar 40, for which purpose the cam-groove 38 is entered by a roller carried by thefree end of a vibratory-M11143; pivotally supported upon the machine frame within the stand- I by means of fillBCCGIltllC studl,.1s one end of a connecting-Everet disposed within the brackeharm 3 and formed intermediateits ends with an elongated slot 46 to provide guide walls slidable upon a fulcrum-block 47, pivotally secured bymeansof a screw 4L8 to the machine frame.
  • the periphery of the cam-sleeve flange 36 is formed with a V- shaped stop-notch 54, which in the position occupied by the sleeve when uncoupled from its driver, is adapted tobe entered by the wedge-shaped end of a plunger-head 55.
  • the plunger-head is slidingly supported for endwise movement within the bore of a tubular bracket 56 suitably secured in an aperture in the rear side of the standard 2, said plunger-head having a reduced extension 57, surrounded by a coil-spring 58 interposed between the plunger-head and an adjustable bushing 59 threaded into the bracket 56.
  • the inward movement of the plunger under the action of the spring 58 is adjustably limited by a nut 60 threaded upon the outer end of the plunger-extension 57 and engaging the head of the bushing 59.
  • the adjustment provided by the eccentric stud 44 affords means for slightly altering the timing to insure entrance of the flange notch 54 by the plunger 55.
  • a bevel-gear 61 in mesh with a similar gear 62 upon the forward end of a feeddirection controlling shaft 63 journaled for rotation in bearings provided in the bracketarm 3.
  • a bevel-gear 64 meshing with a like gear 65 secured upon the upper end of a tubular shaft 66 projecting within the bracket-arm 3.
  • the tubular shaft 66 is journaled for rotation about a vertical axis in a bearing provided by a boss 67 depending from the bracket-arm 3.
  • crank-arm 68 Secured upon the end of the shaft 66 projecting below the boss 67, is a crank-arm 68 carrying a crank-handle 69, which as usual in machines of this type is capable of slight movement in a direction at right angles and with respect to the crank-arm 68.
  • the crank-handle 69 has a peripheral groove 70 operatively engaging one arm of a lever71 fulcrumed intermediate its ends upon the crank-arm 68.
  • a pin 74 slidingly disposed within the tubular-shaft 66, the upper being positioned to engage the depending end 75 of the lever 51.
  • the feeding mechanism includes a feeding-foot or -rin.g 78 which is detachably secured upon the lower end of a feed-bar 79 supported at its upper end for universal movement about transverse pivotal axes.
  • the upper end of the feed-bar 79 is bifurcated to providethe spaced arms 80, disposed at opposite sides of the cylinder 10 and which are plvotally secured by screws, as 81, upon the arms of a bifurcated fulcrumpin 82, the pivotal axis afforded by the screws 81 preferably intersecting the axis of rotation of the cylinder 10.
  • Thepivot-pin 82 is journaled 1n a bearing provided by a bracket 83 to permit of swinging movements of the feed-bar 79 upon an axis transverse to the pivotal axis afforded by the screws 81-, said bracket 83 being confined to vertical reciprocatory movements upon the supportingframe 5.
  • the bracket 83 projects laterally from a vertically reciprocatory sleeve 84, which is raised by the usual operative connections with a feed-lift-cam 85 upon the forward end of the shaft 9 and is lowered by a spring (not shown) housed within the sleeve 84. It is preferred to employ an eccentric fulcrum-stud 86 for the feed-lift lever 87 which is actuated by the cam 85, whereby the lift of the feeding-foot may be slightly adjusted. f i
  • the work advancing movements of the feeding-toot 78 are derived from a cam 88 upon the shaft 9, which cam actuates a lever 9 adapted to engage a lug 90, projecting irom a vertically sliding sleeve 91 ano e2;- tonding through a slot in the frame 5.
  • the lever 89 operates to lower the sleeve 91 against the action of a spring 9:2 housed witl in the sleeve, said spring being interposed between an adjustable bushing 93 threaded into the up r end of the sleeve and the up ⁇ er end 01 a stripper-toot bar 94 constituting a guiding support for the lower end of the sleeve 91.
  • a forked arm 95 Projecting laterally from the sleeve 91 is a forked arm 95 embracing and sustaining a grooved collar 96 having a slid ing lit upon the cylinder 10.
  • the collar 96 is formed integral with a fulcrum block 97 provided with a trans verse aperture 98 for the reception of a pin 99 suit-ably secured to said block by a screw 100.
  • the fulcrum-block 97 is provided in its opposite flat sides with arcuate guideways 101 (only one of which is shown) for guide ribs 102 (only one of which is shown) formed on the inner surfaces of the spaced arms 103 of a feed-finger actuating cam-member 1041.
  • the spaced arms 103 are further provided with arcuate slots 105 which are entered by the pin 99 upon the ends of which arethreaded nuts 106 serving to secure the cammember 10 1 in any position into which it may be adjusted about an axis constituting the center of curvature of the guide-ribs 102.
  • the cam-member 10s is provided withv a fiat-faced cam-groove 107 adapted to be en gaged by the end of a feed-lever 108, the point of engagement of said lever 108 with the camgroove 107 at the beginning of a work-feed ing movement of the feeding-foot constituting approximately the center of arcuate adjustment of the cam-member.
  • the feed-lever 108 is itiilcruiiied between spaced ears formed upon a guide-block 109, suitably secured upon the cylinder 10 and adapted to guide a teed-collar 110 which is actuated in one direction by the teed-finger 108 and in the return direction by springs, as 111.
  • the feedcollar 110 is embraced by a ring 112 projec from the teed-bar 79.
  • a conical stripper-foot 113 which embraces the needle 13 and is formed with a reduced shank 11 1 secured within a sleeve 115 journaled for end wise reciprocatory movements in a bearinghoss 110 depending from the frame 5.
  • Projeeting laterally from the upper end of the sleeve 115 is an arm 117, in the present instance integral with the bar 9 1 to the upper end of which bar is .ecured a screw-pin 118 projecting into a slot not shown) formed in the frame 5.
  • the screwpin 118 is positioned to be engaged by a lever 119 actuated by the feed lift cam 85.
  • the sleeve 115 is tubular to receive the lower end the cylinder 10, thereby constituting the direct journal-bearing of the lower end of said cylinder 10.
  • the feeding-foot 78 comprises a ring of pointed teeth 120 of which all the points terminate in substantially a common horizontal plane.
  • the throatplae 121 ofthe machine is formed with an upper dished surface 122, having as a center of curvature the point oi intersection of the transverse pivotal axes of the feed-bar 79,
  • a universal-feed sewing machine a. cloth-plate, a bracket-arm overhanging the cloth-plate, stitch-forming mechanism, workfeeding mechanism including a feeding-foot adapted to receive work-advancing movements in different directions, actuating means for said stitch-forming and work-feeding mechanism, a stop-motion device embodied in the machine for determining the operation of said stitch-forming and work-feeding mechanisms, and a manually operable member upon said bracket-arm for controlling the direction of feed of the work and the operation of said stop-motion device.
  • stitch-forming mechanism including a reciprocatory needle, a feeding-foot having Work-feeding movements in dilferent directions substantially transverseto the path of reciprocation of the needle, a feeding-foot carrying bar, a universal pivotal support for said feed-bar, and a dished work-support within the range of movement of the feedingfoot, said dished work-support having its center of curvature substantially in the pivotal axis of the feed-bar in the work-support engaging position of said foot.
  • a reciprocatory needle In a sewing machine, a reciprocatory needle, a feeding-foot, a feeding-foot carrying bar, a pivotal support for said bar, and a curved work-support opposed to said feeding-foot, the center of curvature of said ciprocating said cam-member, operative connections between said cam-member and the feeding-foot to impart the work-advancing movements to said feeding-foot, and means permitting adjustment of said cam-member I to vary the extent of the work-advancing movements of the feeding-foot from a constant initial position of said foot.
  • stitch-forming mechanism including a vertically reciprocatory needle-bar, a feeding-foot, a reciprocatory cam-member, a feeding-foot actuating lever operatively engaged by said cam-member, and means permitting adjustment of said cam-member about an axis which is approximately coincident with the point of engagement of said feed-lever with the cam-member at the beginning of the work-advancing movement of said feeding-foot.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US249506A 1928-01-26 1928-01-26 Embroidering machine Expired - Lifetime US1791321A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US249506A US1791321A (en) 1928-01-26 1928-01-26 Embroidering machine
US309143A US1791322A (en) 1928-01-26 1928-09-29 Stop-motion device for sewing machines
FR683138D FR683138A (fr) 1928-01-26 1929-10-11 Dispositif de débrayage pour machines à coudre
CH142413D CH142413A (de) 1928-01-26 1929-10-23 Stickmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US249506A US1791321A (en) 1928-01-26 1928-01-26 Embroidering machine
GB28158/29A GB327940A (en) 1929-09-17 1929-09-17 Embroidering machines

Publications (1)

Publication Number Publication Date
US1791321A true US1791321A (en) 1931-02-03

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ID=10271195

Family Applications (1)

Application Number Title Priority Date Filing Date
US249506A Expired - Lifetime US1791321A (en) 1928-01-26 1928-01-26 Embroidering machine

Country Status (5)

Country Link
US (1) US1791321A (fr)
CH (1) CH142410A (fr)
DE (1) DE518579C (fr)
FR (1) FR683137A (fr)
GB (1) GB327940A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226377A (en) * 1992-05-14 1993-07-13 Kastre John D Single and double toed pressure feet for sewing thick material

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR81426B (fr) * 1982-11-22 1984-12-11 Tokai Ind Sewing Machine
CN110685084A (zh) * 2018-07-06 2020-01-14 广东众恒科技有限公司 一种全自动地毯编织装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5226377A (en) * 1992-05-14 1993-07-13 Kastre John D Single and double toed pressure feet for sewing thick material

Also Published As

Publication number Publication date
FR683137A (fr) 1930-06-06
CH142410A (de) 1930-09-30
GB327940A (en) 1930-04-17
DE518579C (de) 1931-02-25

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