US1109844A - Awl mechanism for nailing-machines. - Google Patents

Description

L, E. JOHNSON.

AWL MECHANISM FORNAILING MACHINES.

APPLICATION FILED JUNI15, 1913.

1,109,844. a ed Sept. 8, 1914.

3 SHEETS-SHEET 1.

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21 Witrwsscs: Inventor:

3. KM. 35 by THE NORRIS PETERS cn PHOTDVLITHO. wAsHlNcrmv, D c.

mnccEJohnson,

L. E. JOHNSON.

AWL MECHANISM FOR NAILING MACHINES.

APPLICATION FILED JUNE 5, 1913.

1,109,844 Patented Sept. 8,1914.

3 SHEETS-SHEET 2.

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THE NORRIS FETERS co, PHOTO-LHHO., .VASHINGTUN. u 1,.

I L. E. JOHNSON. AWL MECHANISM FOR NAILING MACHINES.

APPLICATION FILED JUNE 5, 1913.

3 SHEETSSHEET 3.

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Patented Sept. 8, 1914.

Inventor: LawrenncEJohnson,

by "C Witnesses:

IHE NORRIS PETERS co PHOTO-LITHQ, WASHINGTON n c.

UNITED STATESPATENT OFFICE.

LAWRENCE E. JomvsoN, or WINTHBOB, MASSACHUSETTSQASSIGNOR 'ro JULIUS 1' ennsnor WORCESTER, MASSACHUSETTS}.

AWL MECHANISM FOR NA IL ING-MACHIN ES.

Specification of Letters 1atent. 1

Patented Sept. 8,1914.

Application'filed June 5, 1913. Serial No. 772,012.

To all whom it may. concern Be it known that I, LAWRENCE E. JoI-IN- SON, a citizen of the United States of America, and a resident of Winthrop, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in: Awl Mechanism for N ailing-Machines, of which the following is a specification.

-This invention relates to machines for making and driving nails, and particularly to machines of this class designed for use in the manufacture of boots and shoes, the object of the present invention being to provide a simple construction of awl mechanism adapted to pierce the work and then. feed the work with the awl therein so that the puncture will be positioned beneath the driver when said awl has been removed from the work and returned to its normal position. I

This invention is an improvement on the nailing machine shown and described in U. S. Letters Patent No. 1,078,147, issued to 111c Nov. 11, 1913. v v 1 The inventionlconsists in certain novel features of construction and arrangement of parts which will be fully understood by referenceto the description ofthe drawings and to the claims hereinafter given.

Of the drawingsi Figure' l represents a front elevation of aimachine embodying the features of the present invention. Fig." 2 represents a side elevation of a portion of the same. Fig. 3 represents a section through the driving and oscillating shafts showing in elevation the cam mechanism for operating the awl bar. Fig. 4 represents a horizontal section of the front portion of same, the cuttingplane being on line 4- 1 on Fig. 1. Fig. 5 represents a vertical section showing the cam mechanism for controlling the movement of the nail carrying member, and Fig. 6 represents a sectional detail on line 66 on Fig. 1. 1

Similar characters designate like parts throughout the several figures of the drawmgs. I l

In the drawings, 10 is a framework having suitable bearings in which is mounted the revoluble shaftll having secured toii'ts front end a lifter '12,"andto its rearend the pulley 13 revoluble in the direction of the arrow a on Fig. 1 ofthedrawings. Inthe front end of the-frame 10 is mounted are 143is raised bymeans of the lifter 12 engag mg the collar or lifting block 16 secured thereto, andwhen the lifter 12 is disengaged fromjsaid collar 16 the driver bar is moved I downwardly by means of the driving member 17; actuated by the coiled spring 18 all in a well-known manner. 'A reel 19 is provided fromwhichja wire 20 is fed by any well-known mechanism "into a peripheral slot 21 in a nail carrying member 22 pivoted at .23 to'theframe 10. When. a portion of the ,wire 20 has been fed into the peripheral slot 21, movement of the nail carrying memberf22 in the direction of the arrow 6 on Fig. of the drawings will cause that por-, tion ofthe wire positioned said slot to be separated from the main portion of the wire 20, as shown and described in my pre vionspatentherein referred to, thus form'- ing anail which is adapted to be carried by said member 22 into a position immediately ciprocating driver bar 14 having secured in its lower end a driver 15. The driver bar beneath the driver 15 so that when the driver bar l fis releasedbymeans of the member 12 and saidbar is driven downwardly, the driver 15 will force the nail throughfthe work 24 supported upon the horn25 and positioned therein ,by means of the presser foot26.. The ,mer'nber 22 is provided with a rearwardly 'extending arm provided with ears 2.7 between which theupper face of said arm. is provided with a concaved depression 28 as indicated in Figs. 4 and 5 of thedrawmgs. Y

Supported in the earsf27 with its. axis concentric to the M11 of said 'concaved recess is a cylindrical pin 29 having flat sides intermediate its ends and on which is mounted the' movable forked block 30 having formed thereon a radiatin g stud or pin 31.

This pin or stud '31;is positionedwithin a socket 32 formed in the lower end of a lever 33 pivoted at 3 1 and having at itsnpper end a roller 35 positioned in the cam path 36 of the cam disk 37 secured to and revoluble with the driving shaft 11. As the cam disk 37 rotates in the direction of the arrow 0 on 5 of the drawings, the rocking movements imparted tothelever 33 will cause an oscillation of the member 22aboutits pivot 23 in an obvious manner. During this operation ,it is evident that the pin 31 is adaptedto reciprocatein the socket32 and the block 30 is adapted to reciprocate lengthwise of the pin 29 and to oscillate slightly about the axis of said pin, thus producing a universal connection between the free end of the lever 33 and the outer end of the rearwardly extending arm of the nail carrying member 22.

The frame 10 is provided with an ear 38 in which is positioned an oscillating shaft 39 to the rear end of which is secured a lever 40 and to the front end of which is secured an arm 41. The frame 10 is also provided with an extension 42 in the bearing in which is positioned an oscillating shaft 43 having securedto its rear end the lever 44 and to its frontend the forked member 45. The free end of the arm 41 has pivoted thereto an awl carrying bar 46, the lower end of which has clamped thereto the awl 47. This awl carrying bar is provided with an ear 48 having an elongated slot 49 therein, through which extends the. threaded shank 50 of a stud 51, the rear end of which has aiwasher 52 secured thereto by means of the'screw 53. This stud 51'is provided with a peripheral flange 54 between which andthe washer 52 is interposed a block 55 positioned within the slot 56 in the forked member 45, said block 55 being adapted to freely move about the axis of said stud. The stud 51 may be moved in the slot 49 and secured in adjusted position by the nut 50*, thereby varying the feedmovement of the awl 47, The free end of the lever 40 is provided with a truck 57 positioned in the cam path 58 of a disk 59secured to the driving shaft 11. The cam path is so constructed as to cause an oscillation of the shaft. 39 and through the arm or lever 41 a reciprocating vertical movement of the awl bar 46. The opposite side of the disk 59 is provided with a cam path 60 in which is positioned-a roller 61 secured to the end of the lever 44, this cam path 60 being so constructed as to produce an oscillation of the shaft 43, and through the forked member 45 areciprocatory movement of the awl-bar 46.

The throws of the cams 58 and. 61 are so timed that a downward movement will first be imparted to the awl-bar 46 to cause the awl 47 to pierce the work 24. During'this movement the member 22 is being moved about its pivot 23 so that the groove-21will be brought into the position shown in Fig. 4. Then in this position an opportunity is given for the awl-bar 46 to move laterally swinging about its pivotal connection with the lever 41 and thereby feeding thework 24 the required distance, the amount of movement being dependent upon the-position of the stud 51 in the slot 49. hen the feeding operation has been. completed" the awl 47 is directly beneath the driver 15. The awl is then withdrawn from the work by upward movement of the awl-bar 46 and as soon as it has been wholly removeda lateral movement is imparted by the cams to the awl-bar to return the awl to 1ts normal position preparatory to another operation.

It will be observed that the combined operations of the cam members upon the awlbar 46 causes the awl to travel in a rectangular path.

hen the awl 47 has returned to its normal position the member 22 with a nail carried in its peripheral slot 21 will be moved about its pivot 23 until the slot is beneath the driver 15 which is then permitted to operate and the nail is driven into the work. 7

As the means for feeding the wire, form ing the nail, and driving it into the work, are all substantially the same as shown and described in said earlier patent referred to, no detailed description of these mechanisms is herein given.

It is believed that the operation and many advantagesof this invention will be fully understood from the foregoing description.

Having thus described my invention, 1' claim: 1

1. In a device of the class described, th combination with a work support and driver, of a pivoted awl-carrying bar; means for operating said'bar to cause said awl to move in a rectangular path to pierce and feed'the work; a pivoted member having a pocket in its periphery for carrying a nail into position below said driver; and means for moving said member about its pivot out of the path of said bar prior to the work feeding movement of the awl.

2. In a device of the class described, the combination with a work support and driver, of a pivoted awl-carrying bar;. means for operating said bar to cause said awl to move in a rectangular path to pierce and feed the work; a pivoted member having a peripheral nail carrying slot adapted to be brought into position beneath said driver; a pivoted lever; a universal connection between the freeends of'said lever and member; and a cam for operating said lever to move said pivoted member from the path of the awl bar prior to the work feeding movement thereof. I

3. In a device of the class described, the combination with a work support and driver, of a pivoted awl-carrying bar; means for operating said bar to cause said awl to move in a rectangular path to pierce and feed the work; a pivoted member having a peripheral nail carrying slotj adapted to be brought into position beneath said driver; a pivoted lever; a forked block carried by said memher and movable horizontally thereon; a pivotal connection between said block and the free end of said lever; and a cam for operating said lever to move said pivoted member from the path of the awl bar prior to its Work-feeding movement thereof. .1

a. In a device of the class described, the combination with awork support and driver, of a pivoted awl-carrying bar; means for operating said bar to cause said awl to move in a rectangular path to pierce and feed the work; a pivoted member having a peripheral nail carrying slot adapted to be brought into position beneath said driver; a pivoted lever;-a forked block carried by said memher and movable horizontally thereon; ,a pin extending outwardly from said block and adapted to reciprocate in a holein the 9 end of said'lever; and a cam for operating said lever to move said pivoted member from the path of the awl-bar' prior to thework feeding movement thereo 5. In a device of the class described, :the

combination with a work support and driver,

, ber and movable horizontally thereon; a

flat sided pin in said member on which said block is adapted to reciprocate; anda cam for operating said leverto move said pivoted member from the pathof the awl-bar prior to its work-feeding movement thereof. j

6. In a device of the class described, the combination with a work support and driver,

of a pivoted awl-carrying bar; means for operating said bar to cause said awl to-move in a rectangular path to pierce and feed the work; apivoted member having a periph-. eral nail carrying slot adapted to bebrought into position beneath said driver and also provided with an arm having two cars in its upper face; a fiat'sided pin movable in said ears; a block reciprocable on said pin and movable about the axis thereof provided with a radial cylindrical pin; a pivoted lever having a socket for said pin in which it is adapted to reciprocate; and a cam for operating fsaid lever to move said pivoted member from the path of the awl-bar prior to the worlcfeeding movement thereof.

' Signed by me at at Post Oflice Sq., Boston,

Mass, this 29th dayof May, 1913.

' Witnesses:

MAURICE B. SPINozA, NATHAN G. LoMBARD.

C pi s of t is pa n m y e o t i f five centseach, by addressing the Commissioner Batents,

wa i g oni e G! LAWRENCE E, JOHNSON.

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