US1852736A - Drilling or tapping machine - Google Patents

Drilling or tapping machine Download PDF

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Publication number
US1852736A
US1852736A US365358A US36535829A US1852736A US 1852736 A US1852736 A US 1852736A US 365358 A US365358 A US 365358A US 36535829 A US36535829 A US 36535829A US 1852736 A US1852736 A US 1852736A
Authority
US
United States
Prior art keywords
switch
tool
motor
circuit
drilling
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
US365358A
Other languages
English (en)
Inventor
Edwin L Connell
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.)
DORN ELECTRIC TOOL CO VAN
VAN DORN ELECTRIC TOOL CO
Original Assignee
DORN ELECTRIC TOOL CO VAN
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 DORN ELECTRIC TOOL CO VAN filed Critical DORN ELECTRIC TOOL CO VAN
Priority to US365358A priority Critical patent/US1852736A/en
Priority to FR677917D priority patent/FR677917A/fr
Application granted granted Critical
Publication of US1852736A publication Critical patent/US1852736A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S408/00—Cutting by use of rotating axially moving tool
    • Y10S408/712—Drill press adapted to use portable hand drill
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/65—Means to drive tool
    • Y10T408/675—Means to drive tool including means to move Tool along tool-axis
    • Y10T408/6786—Manually moved lever

Definitions

  • This invention relates to motor driven machines, itsv object being to provide a simple and im roved arrangement of controlmechanism aptable for use on either drilling, tapl ing, stud setting or like 4 ev'lsed as to terminate the drilling, tapping or stud setting operation ⁇ by the torque resistance andrestore the motor to o rative condition by the usualoperation o retracting the 1I tool from the work, whereby the machine is more or less automatic in operation, but nevertheless is controlled by the operator with his usual manipulations of such machines.
  • Fig. 1 represents a front elevation of a portion of a drilling machine embodying the invention
  • Fig. 2 is a detail elevation illustrating the switch mechanism, the cover of the switch casing bein omitted for the clearness ⁇ of illustration
  • 1g. 3 is a sectionalplan view through the cover of the switch, the section being taken on approximately the line 3 3, Fig. 1;
  • Fig. 4 is a .detail section on the line 44, Fig. 2;
  • Fig. 5 is a sectionalelevatinof a tapping or stud setting machine embodying the invention;
  • Fig. l6 is aA sectional'elevation through the controlling portion of ythe operating handle; and
  • Fig. 7 is a wiring diagram of the control system.
  • the drilling'machine shown in Fig. 1 comprises an arm or support 1 mounted to swing about and also adjustable vertically upon a post or column, not shown.
  • This ⁇ radial arm carries a' head lor frame 2 including a post 3 provided with a head 4l carrying a bearing sleeve 5 in which is vertically slidable a rod or shaft 6 attached to a sub-frame 7 in which l is mounted, preferably detachably, a portable tool, such as a portable electric drill indicated generally at 8 and including an electric motor,
  • a compression spring 11 adjustable bythe 12 serves to normally elevate the submachines, and so Iergization of I said lts casing, any necessary speed reducing gearframe 7 and the tool carried therebyfto the upper most position.
  • the tool is brought into engagement with the. work by the operator, who depresses a handle or lever 13 pivoted at 14 upon the sub-frame and having a short arm connected by a link 15 to the head 4.
  • the electricalcontrol system for this tool is shown in Fig. 7, where the three wire A. C. circuit leads 16a, 16? ⁇ and 160' are connected to the main, switch, indicated generally at 17, and including contacts 18 in all of said leads actuated by a relay coil 19 adapted upon encoil to close the main switch and complete the circuits to the motor M.
  • the main switch also carriesl an extra set of controlling contacts,'marked 20, 'which are in a circuit 21 from one of the leads, such as 16a, with a normallyclosed overload switch 22, a normally closed gauge stop switch 23, (if use of such a stop is desirable) a normally c losed'emergency stop switch 24, and coil 19 to another lead 1Gb.
  • the control 'circuits also include a starting circuit 25 in circuit with the normally open start switch 26.
  • a gauge stop is not used but it may be employed, as will appear.
  • the moto'r isA started by closing vthe starting switch 26, which energizes coil .19 through the normally closed stop button 24 and closes the motor circuits at the main switch.
  • Control contacts 20 are also closed, thereby establishing a maintaining circuit by way of contacts 20, switches 22, 23 and 24 through the coil 19 and permitting the start switch to be released and move to open, position.
  • the motor will continue to run. The operator pulls down the lever 13 and then applies the tool to the work.
  • the tool may be a drill, a tap, ⁇ a stud'or nut.
  • Segment 31 is also connected by a wire35, 36 to the overload switch' 22,.
  • Segment 30a is lon the opposite side of block 29 and insulated from segment 30. As the roller 31 travels along its arcuate path it simultaneously engages the segments 30 and 30a and conductively bridges them, thereby/ l completing the startlng circuit.
  • Fig. '2 shows the switch parts-in ⁇ the position corresponding to Fig. 1, with the tool in its uppermost position.
  • the starting switch 26 is therefore energized by the travel of the -tool toward its upper position, or will be energized upon the first depression of the tool by the handle 13, which causes roller 31 to contact simultaneously with the segments 30 and 30a, and thereby complete the circuit 21, 25, 26, 24, 19, Fig. 7, and energizes coil 19, thus closing contacts 2O and maintaining said contacts and themotor circuit closed -evenl when the tool is further depressed and roller 31 reaches the insulated part 29 of the seg,
  • the tool is engaged with the work and performs its duty until the over-load coil 27 opens switch 22, whereupon the motor circuit is opened, the motor stops, switch 22 promptly closes, and the operator disengages the toolpfrom the work and moves or permitsv it to move to its uppermost position, thereupon instantaneously completing the starting circuit b closing of the starting switch, as before.
  • e tool is therefore operating and ready for another cycle of duty as before, but the operator need give no-attention -to the control mechanism except to press the emergency o'r stop button 24 when he wants to stop the tool at other times than by the operation aforesaid.
  • Figs. 5 and ⁇ 6 show another embodiment of the invention ⁇ particularly adapted for screwingor threading operations, such as tapping,
  • the upper sleeve 47 carries a forwardly driving clutch member 52 and the 'lower sleeve a reversely driving clutch member 53, the two clutch members cooperating with a clutch member 54 upon the tool ⁇ spindle 55, which 'slides' and rotates in both sleeves, its move- ,ment beinglimited by collars 55a, 556 at-its upper and lower ends.
  • the lower sleeve ⁇ 50 is provided with a grooved collar 56 engaged lever or arm 57 connected by a linky 58 to a stationary point on the main frame.
  • the lever also carries a gauge stop 59 adjustable as to length and having a gauge portion 60 designed to engagethe work when a desired depth or home yposition is-reached, and also including a shank 61 travelling in a guide 62 and normally held downwardly by .a
  • the switch 23 At. the upper end of said rod 59 is the switch 23, including a bridge Contact cooperating with stationary .contacts and forming the normally closed but fopenable switch conventionally indicated in Fig. 7.
  • the starting switch in this arrangement is of the form shown in Fig. 6.
  • the lever 57 is of elbow form having a handle portion 65 pivoted at 66 and carrying two fingers 67, 68 which limit its swinging movement on the lever.
  • One of said fingers carries a member 69 adapted to engage and-depress a push button 70 for actuating a yieldable normally open switch 26, the details of which are immaterial except that the pressure of the spring 27a which normally opens the switch may be fairly strong for reasons which will appear.
  • the lever 57 is raised by raising the handle 65, which disengages the upper clutches-and enga es the lower reverse clutches,'furtherfu war movement of the handle 65 against t e weight of the sleeves and tool spindle being suiicient to overcome the pressure of springl 27 a and close the yielding switch 26, which starts the'motor and establishes the maintaining circuit through'contacts 20 and coil 19 before'referred to.
  • the handle is then lowered and the 'sleeves and tool spindle being suiiicient to the tool is applied to the work, its advance being stopped while thevsleeves 47, 50 move the motor stops.
  • Apparatus ofthe class described comprising a tool and reciprocating motion,'an electric motor and circuit for rotating'said spindle, a control crcuit, a'relay therein for controlling both the motor circuit and the control cir ⁇ cuit, normally closed switch means in the control circuit for controlling the motorcircuit, means sensitive to the current su plied to the motor .through the motor circuitiortuating said switch means to open the control circuit, thereby causing said relay to open the motor circuit, an operator operated decontrol circuit for controlling the motor circuit, means sensitive to the current supplied to the motor through the motor circuit for actuating said switch means to open the control circuit, thereby causing said relay to' open the motor circuit, an operator-operated device for producing reciprocating lmotion of said tool spindle, and switch means actuated by reciprocating motion of said tool spindle for affecting said relay toA complete the motor circuit. .e 4
  • AIt is kerel-1y ce-rtified that errorcpp I 4in the printed spccif-cationof the numbered patent requiring correct Van followng, PagevZ, line '128,l strike und Letters Patent should be read with thss'correcti'cn therein bcing'sn'fficicnt to"; and thatV the that the sam;

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
US365358A 1929-05-23 1929-05-23 Drilling or tapping machine Expired - Lifetime US1852736A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US365358A US1852736A (en) 1929-05-23 1929-05-23 Drilling or tapping machine
FR677917D FR677917A (fr) 1929-05-23 1929-07-05 Machine à percer et à tarauder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US365358A US1852736A (en) 1929-05-23 1929-05-23 Drilling or tapping machine

Publications (1)

Publication Number Publication Date
US1852736A true US1852736A (en) 1932-04-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US365358A Expired - Lifetime US1852736A (en) 1929-05-23 1929-05-23 Drilling or tapping machine

Country Status (2)

Country Link
US (1) US1852736A (fr)
FR (1) FR677917A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453137A (en) * 1942-08-20 1948-11-09 Ex Cell O Corp Method of drilling metal and the like
US2490480A (en) * 1947-03-06 1949-12-06 Herman A Schubert Bowling pin reconditioning machine
US2587520A (en) * 1948-11-05 1952-02-26 Peplow Arthur Adjustable power-driven tool support
US2609018A (en) * 1948-12-27 1952-09-02 Bjorklund Arvid Routing machine
US2787679A (en) * 1954-07-15 1957-04-02 Sr Ralph M Moretz Automatic safety drill press switch
US2835147A (en) * 1954-06-29 1958-05-20 Jr Andrew C Baifour Work feeding attachment and stand for portable electric power drills
US3244031A (en) * 1961-10-31 1966-04-05 Rockwell Mfg Co Power tool improvements
US3381725A (en) * 1965-10-22 1968-05-07 Locher Alfred Automatic drill and inserting machine
US4740119A (en) * 1987-07-13 1988-04-26 Lierz Lawrence R Lever operated control mechanism for movement of an electric drill
US5137235A (en) * 1990-08-29 1992-08-11 U-Haul International, Inc. Inverted angle drill
US20160114446A1 (en) * 2014-10-24 2016-04-28 Fu Ding Electronical Technology (Jiashan) Co.,Ltd. Brake and processing device using the same for a cutter device in processing apparatus
US20230064921A1 (en) * 2021-09-01 2023-03-02 Kenneth E. Larkin Router sled

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453137A (en) * 1942-08-20 1948-11-09 Ex Cell O Corp Method of drilling metal and the like
US2490480A (en) * 1947-03-06 1949-12-06 Herman A Schubert Bowling pin reconditioning machine
US2587520A (en) * 1948-11-05 1952-02-26 Peplow Arthur Adjustable power-driven tool support
US2609018A (en) * 1948-12-27 1952-09-02 Bjorklund Arvid Routing machine
US2835147A (en) * 1954-06-29 1958-05-20 Jr Andrew C Baifour Work feeding attachment and stand for portable electric power drills
US2787679A (en) * 1954-07-15 1957-04-02 Sr Ralph M Moretz Automatic safety drill press switch
US3244031A (en) * 1961-10-31 1966-04-05 Rockwell Mfg Co Power tool improvements
US3381725A (en) * 1965-10-22 1968-05-07 Locher Alfred Automatic drill and inserting machine
US4740119A (en) * 1987-07-13 1988-04-26 Lierz Lawrence R Lever operated control mechanism for movement of an electric drill
US5137235A (en) * 1990-08-29 1992-08-11 U-Haul International, Inc. Inverted angle drill
US20160114446A1 (en) * 2014-10-24 2016-04-28 Fu Ding Electronical Technology (Jiashan) Co.,Ltd. Brake and processing device using the same for a cutter device in processing apparatus
US9951755B2 (en) * 2014-10-24 2018-04-24 Fu Ding Electronical Technology (Jiashan) Brake and processing device using the same for a cutter device in processing apparatus
US20230064921A1 (en) * 2021-09-01 2023-03-02 Kenneth E. Larkin Router sled
US12594635B2 (en) * 2021-09-01 2026-04-07 Kenneth E. Larkin Router sled

Also Published As

Publication number Publication date
FR677917A (fr) 1930-03-17

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