US1404188A - Lasting machine - Google Patents

Description

M. BROCK.

LASTING MACHINE.

AVPPLICATION FILED JUNE 25, 1917.

Patented Jan. 24, 1922.

3 SHEETS-SHEET l- M. BROOK.

LASTING MACHINE. APPLICATION: FILED JUNE 25.1911.

1,404,1 Patented Jan. 24,1922.

Fig. 2.

3 SHEETS-SHEET 2.

M. BROCK.

LASTING MACHINE. APPLICATION FILED 1UNE25, I9]?- Patented Jan. 24,1922.

3 SHEETS-SHEET 3.

FUNITED STATES PATENT OFFICE.

MATTHIAS BROOK, OF BOSTON, MAS$ACHUSETT$ ASSIGNOR, BY MESNE ASSIGNMENTS, T0 UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

LASTING IVIACHINE.

Application filed June 25,

To all whom it may come m:

Be it known that l, Mivr'rrrus BROOK, a citizen of the United States, resiifling at Boston, in the county of Suffolk and State of Massachusetts, have invented certain linprovements in Lasting h'lachines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the severa figures.

This invention relates to lasting machines and is herein shown for illustrative purposes as embodied in a toe and heel lasting machine of the type described in prior United tates Letters Patent No. 1,018,477, granted Feb. 27, 1912, on an application filed by me.

An important object of this invention is to improve lasting machines of the type shown in my prior patent by making them available for lasting long-legged boots while the leg portion of the boot occupies its normal position. Heretofore it has been customary, in machines of this type, to cruniple or to fold the leg portion of a boot for the lasting operation. A feature of this invention consists in the combination with a lasting head, of a novel arrangement heel lasting mechanism and boot supporting means in which the boot supporting means is arranged to present to the lasting mechanism a high boot without distortion of the leg portion of the boot. This feature of the invention, in the construction shown, is embodied in an organization comprising a lasting head having a slide movable in'the head to draw the boot into a heel band and having an arm adapted to extend upwardly throughthe boot leg to engage the last in the boot.

Other objects of the invention are to provide improved operating and controlling mechanisms to facilitate the carrying out of the lasting operation on long-legged boots and other footwear and to render the machine more eiiicient and-convenient for the operator. To these ends, further features of the invention consists in novel means for moving the last support to position the work relatively to the lasting mechanism, a. novel construction and arrangement of mechanism for checking the movement of the lasting Specification of Letters Patent.

Patented Jan. 24, 1922.

1917. Serial No. 176,784.

head away from its operative position, and

novel means for controlling the release of the lasting head and the work support whereby the parts are permitted to return to their inoperative positions.

The above and other features of the invention will be more fully understood from the following description, in connection with the accompanying drawings which show an illustrative embodiment of the invention, and will then be particularly pointed out in the claims.

Fig. 1 of the drawings is a front side elevation of a machine embodying this invention in a preferred form;

Fig. 2 is a reverse side elevation of the rear part of the machine;

Fig. 3 is a perspective detail 01'- certain parts shown in Figs. 1 and 2;

. Fig. 4 is a sectional detail through the heel band;

Fig. 5 is a plan View of the heel lasting head with parts broken away to show the heel embracing band;

Fig. 6 is a perspective view of the heel head latchin and releasing mechanism.

The supporting parts of the machine con1- prise leg brackets 2 and 4 that rest on the floor and on top of which the frame 5 rests, the leg brackets being connected by crossbars 6 to make a suitably rigid structure to a tl'ord bearings for a power shaft 8, and also for cam shaft 9, Fig. 2, which operates the jacking and unjacking mechanism and effects certain other operations that do not require exercise of the judgment of the machine operator, including closing and release of the heel embracing band and unlatching of the heel head lock in time relation to the jacking and unjacking of the shoe. Further details of these mechanisms may be obtained from prior United States Letters Patent No. 1,0l8, l77.

The frame 5 has at its left hand end a bearing in which slides vertically the stem 10 of the toe lasting head, and the frame has also a pivotal support 12 about which the heel yoke 13 is mounted to swing horizontally about a center located substantially under the point of intersection of the median line of the fore'part of a last with the median line of the heel part of the last, whereby adjustment of the last, which is carried by the yoke, and the heel lasting mechanism, is effected for right and left crooked lasts, as explained in said prior patent. The yoke 13 has rolling support upon the frame at its right hand end.

The toe lasting head is raised and lowered in the lasting operation by foot power trans mitted through a treadle mechanism 15 and crank and link connections to the stem 10. Thehead carries the toe lasting wipers and their operating mechanism, connected with hand lever 16, and also various means for effecting adjustments of the wipers to operate advantageously upon the toe portion of various shapes of shoes, all as more fully set forth in said prior patent and in Patent No. 1,373,482, granted on April 5, 1921.

' i The toe of the shoe is supported on a toe rest 20 which may advantageously have the novel characteristics described and claimed in said Patent No. 1,373,482 and the rear end of the shoe is sustained by a new support embodying a feature of this present invention and adapting the machine for lasting long-legged boots of which a considerable number of shoe manufacturers now make a few for sporting, military and other special uses. This last or heel support comprises a depending U-shaped member 25, see Figs. 1 and 2, the rear arm of which is built rigid with a slide 24 in the heel lasting head and the'front arm of which is so spaced from the rear one and is of such length as to afford room for the leg of an 13-inch'boot applied to the usual heel pin 26 located in the upper end of the front arm and having a supporting shank vertically movable in said arm. The slide is movable by arack and pinion connection with a hand wheel 27 against the tension of a return spring 44 to draw the shoe on the last pin firmly back into the heel embracing band. The hand wheel is locked by a latch 28, Fig. 6, to hold the slide from return. movement. 1

The shoe must be positioned vertically to bring its heel seat face in the right relation to the plane of the heel seat wipers 29- To accomplish this with the illustrated heel support for longlegged boots, the last heel pin is mounted to slide vertically in the upper end of the front arm of the support, as above explained, and said arm is recessed to guide a thrust rod 301, Figs. 2 and 3, which rests upon a lever 30 fulcrumed on v the U-shaped support 25 at its closed end.

A swinging plate 32 underlies the lever and is-lifted by a rod on the treadle lever 3.5, one face of which lever is formed as a ratchet, Fig. 3, to be engaged by the pawl on the locking treadle 34. The rear arm of the lever 30 is connected yieldingly by a spring 31 to thrust rod 302 guided in the rear arm of the last support andbearing a roll 303 on its upper end to engage a cam or incline 33, F ig; 2, fixed on the heel yoke. It is intended to raise the last by treadle' 35 to the approximate vertical position desired before forcing the shoe hard back into the heel band. This having been done, the cam 33 produces a further yielding upward pressure of the last as the last support and slide 24 are moved backwardly by use of hand wheel 27. This causes the heel band, the inner face of which is vertically concave near its upper edge, to clamp the upper materials hard against the last at the edge of the heel seat and thereby assist'in producing, with the heel lasting wipers, a heel seat having a well-defined edge conforming accurately to the shape of the last, see Fig. 4. The heel band, which may be a heavy sole leather strap molded to'present the desired contour including an overhanging portion on its inner face, is backed up'and maintained in form to produce the required shaping of the upper by a support or backing comprising links or plates 36 arranged in vertical series and decreasing in width frozn the upper edge downwardly to present an inwvardly and upwardly inclined supporting the heel lasting head in any position that lever may occupy because of the swingin of the head with yoke 13 about pivot '12. The lever 37' actsthrough a thrust rod, a bell crank and a spring 38 to thrust forwardly a plunger 39, Figs. 2 and 5. The plunger is connected with wedge bars 402, Fig. 5, to the front ends of which the sectional band closing levers 41 are fulcrumed. The inner ends of the levers are connected to the band ends and their outer ends to pull springs, asusual, so that ad ance of the.

wedge bars draws the band snugly about the heel and closes it against thesides of the heel, the springs yielding to take up the re mainder of the cam movement when the band ends are firmly pressed against the shoe- The band closing levers are formed with outer or mainbody portions'in which are dovetailed'inner portions'or blocks 410 pivoted tothe wedge bars 402 and having threaded stems 411 extending freelythrough bores inthe outer ends of the main portions of the levers and engaged-by nuts 47, rota-' tion of which moves the main lever portions longitudinally to widen or narrowthe band for shoes of different widths or for varying the pressure that will be applied. Adjustment may also be employed for fitting the band to right and left shoes the shanks of which are much deeper on the inner sides than on the outer sides.

The heel lasting head is mounted in the yoke 13 on rollers 40 to move longitudinally of the machine toward and from a definite operative position, in which position it is locked by latches 42, Figs. 1, 2 and 3. The heel head is pulled forwardly by hand into a position in which a spring 43, Fig. 6, can cause the latches to engage catches on the yoke. At the end of the lasting operation these latches are automatically released and the heel head is automatically retracted to its original position, permitting convenient removal of the lasted shoe from the machine. The head is retained againstrebound from this retracted position by a combination of parts shown in Fig. 2 and comprising a rod 45 held by a spring 46 at the left hand end of its endwise movement in bearings in the head. The rod carries a brake-shoe 48 that slides on the yoke and is pressed upon by a normally relaxed spring 49 upon which rests a plunger 50. To the rear end of the yoke is bolted stop 52 having a forwardly extending wedge face 53 for engagement by the plunger. These parts are so organized that the brake does not substantially retard movement of the head until, during return of the head, the plunger travels under the fixed wedge face 53 whereupon the brake is applied to stop the rod 45 and through compression of the spring 46 to check the heel head and, having stopped it, to retain it against undesirable rebound. The spring 46 will move the head slightly forward again and loosen the brake so that the head can be easily drawn forwardly again, .but the springs 46 and 49 are so proportioned that the brake is preferably not drawn fully out from under the brake setting wedge 53 by the expansion of spring 46.

The heel lasting head is released, and allowed to be moved backwardly by the contraction of spring 38, as a part of the unjacking operation produced by a movement of the cam shaft 9 that allows the heel band to open. This cam shaft movement effects. through connections not shown but common to said prior patents, a lifting of crossbar 60 and disengagement of latches 42. It is desirable also to unlatch hand Wheel 2? simultaneously with the release of the latches 42 and prior to the beginning of the rearward movement of the heel head by spring 38, so that a separation of the band from the shoe may occur promptly to avoid drawing the shoe rearwardly over its toe rest. This result is obtained in the construction herein shown by providing a lever 65, Fig.

6, arranged to rest by gravity on latch 42 and having awedge face in engagement with the inclined edge of an offset portion of a lever 66 (Fig. 6) that is operatively connected to the hand wheel latch 28 and withdraws latch 28 at the same time that latches 42 are lifted. This mechanism, whereby the possibility of lost motion between parts of the releasing connections is practically eliniinated insures prompt release of the hand wheel with the heel head.

The front leg bracket 4 is provided with a support for a last spindle 70 upon which the shoe may be supported for the usual operation of pounding down the heel lasting tacks. The support and spindle provide bearing on which a toe rest 72 is swiveled. This rest is used to sustain a McKay shoe toe while similarly pounding down the toe lasting tacks, and can be swung close against the machine as shown in Fig. 1 when not in use. The toe rest and heel spindle are shown as arranged for use alternatively or successively but not simultaneously, the toe rest pad being concaved transversely.

Having explained the nature of this invention and described a preferred embodiment thereof, I claim as new and desire to secure by Letters Patent of the United States: 95

1. In a machine for lasting high boots, the combination with a lasting head, of a heel embracing band thereon, a slide mounted on the head for movement t draw the work into the band and to withdraw it from the band and having an arm adapted to extend upwardly through the boot leg to support the last in the boot, said slide and arm being constructed and arranged to permit application of the boot to the arm without folding or distortion of the boot leg, and mechanism for operating the slide to draw the boot backwardly into the band.

2. In a machine for lasting high boots, the combination with a lasting head, of heel lasting mechanism including a heel embracing band, boot supporting means operatively connected with said lasting head and mounted for movement toward the lasting mechanism to position in co-operative relation thereto, a high boot without distortion of the leg portion of the boot, and mechanism for moving said boot supporting means to position a supported boot in cooperativc relation to the lasting mechanism.

3. In a lasting machine, the combination with heel lasting mechanism, of means for sustaining the heel portion of a last, said means being arranged to receive the leg portion of a long-legged boot without distortion and comprising an approximately U-shaped member one arm of which is adapted to extend upwardly through the boot leg and the other arm of which is arranged substantially parallel with the first arm to extend upwardly to the lasting mechanism, and a last engaging member slidably mounted on said first arm.

4:. In a lastingmachine, the combination with heel lasting mechanism, of means for sustaining the heel portion of a last, said means being arranged to receive the leg portion of a long-legged boot without distortion and comprising an approximately U- shaped member one arm of which is adapted to extend upwardly through the boot leg to support the last and the other arm of which extends upwardly towardthe heel lasting mechanism, a last pin mounted for movement upwardly and downwardly on said first named arm, and means connected with the other arm for positioning the shoe relatively to the lasting mechanism.

5. In a lasting machine, the combination with heel lasting mechanism comprising a heel lasting head and a heel embracing band carried by the head, of a slide in the head, a U-shaped member having its rear arm de pending from the slide and its front arm arranged to extend upwardly through the leg of a boot and support a last within the boot, and means for operating the slide to draw the boot rearwardly into the heel band.

6; In a lasting machine, the combination with heel lasting mechanism comprising a heel lasting head and a heel embracing band carried by the head, of a slide in the head, a U-shaped member having its rear arm depending from the slide and its front arm arranged to extend upwardly through the leg of a. boot and support a last within the boot, a last pin in said front arm, treadlc mechanism to raise the last pin to position the work vertically, means to operate the slide to draw the boot into the band, and means incidentally operative in themovement of the slide to raise the last as it is drawn into theband.

7. In a lastingmachine, the combination with heel lasting mechanism comprising a heel lasting head and a heel embracing band carried by the head, of a slide in the head, a U-shaped member having its rear arm de pending from the slide and its front arm arranged to extend upwardly throughthe leg of a boot and support a. last within the boot, a last pin in said front arm, means to operate the slide to draw the work into the band, and means incidentally operative in the movement of the slide to raise the last as the work is drawn into the band.

8. In a lasting machine, the. combination with heel lasting mechanism comprising a heel lasting head and a heel embracing band carried by the head, of a slide in the head, a U-shaped member having its rear arm depending from the slide and its front arm arranged to extend upwardly through the leg of a boot and support a last within the boot, a last pin in said front arm, means to operate the slide to draw the work into the band, and meansto raise said last pi:1 as the boot is drawn into the band.

9. In a lasting machine, the combination with heel lasting mechanism comprising a heel lasting head and a heel embracing band carried by the head, of a slide in the head, a member having a rear arm rigid with the slide and a front arm so spaced with relation to the rear arm and of such length as to afford room for the leg 'portion of a long boot supported on the upper end of said arm in operative relation to the heel embracing band, and meansto operate the slide to draw the boot backwardly into the band. a

10. In a lasting machine, the combination with heel lasting mechanism, of last supporting means comprising a substantially U shaped support constructed to receive a long legged boot, means operable to raise the last on said supporting means and to lock. it upraised, means to draw the last into the lasting mechanism, and means incidentally operative during the last mentioned movement to effect pressure tending'furthezr to raise the last. I

11. In a lasting machine, the combination with heel lasting mechanism comprising a heel lasting head and a heel embracing band carried by the head, of a slide in the head, a member having a rear arm' rigid with the slide and a front arm so spaced with relation to the-rear arm and of such length as to afford room for theleg portion of a long boot supported on the upper end of said front arm in operative relation to the heel embracing'band, a last pin on the front arm, a treadle and connections to raise the last pin, means to restrain return movement of the last pin, means to operate the slide to draw the boot into the heel band, and means on the lasting head to effect yieldingly pressure tending to crowd the worlc progressivelyupwardly as it is seated in the band.

12. In a lasting machine, the-comlnnatiou with a heel lasting head and a band having an overhanging upper edge, of a last support, a last pin vertically movable in the support, means operable to raise the last on said pin andto lock itupraised, means to move the support to draw the work into the band, a cam relatively to which said support is thus movable, and means operated by the cam through the movement of the last support to press the last pin'in the direction further to force the shoe upwardly against the overhanging edge of the band.

' 13. In a lasting machine, .a support, a heel lasting head movable forwardly and backwardly on the support, and means for checking the backward movement of the head comprising a rod in the head, a brake-shoe carried by the rod and sliding on the support,

and means under which the brake-shoe is required to pass and which is constructed and arranged to force the brake-shoe hard against the support.

14. In a lasting machine, a support, a heel lasting head movable forwardly and backwardly on the support, and means for checking the backward movement of the head comprising a rod in the head, a brake-shoe carried by the rod and sliding on the support, means under which the brake-shoe is required to pass and which is constructed and arranged to force the brake-shoe hard against the support, and a spring yieldingly holding the rod in a normal position longitudinally of the head and arranged to be compressed to absorb the momentum of the head when the brake is applied, said spring being arranged to apply its expansive force in loosening the brake.

15. In a lasting machine, a support, a heel lasting head movable forwardly and backwardly on the support, and means for check-' ing the backward movement of the head comprising a rod in the head, a brake-shoe carried by the rod and sliding on the support, a normally relaxed spring over the shoe, a plunger resting on the spring, and astop member having aforwardly extending wedge face arranged for engagement by the plunger to apply the brake as the plunger slides under the stop member.

16. In a lasting machine, a support, a heel lasting head movable forwardly and back wardly on the support, and means for check ing the backward movement of the head comprising a rod in the head, a brake-shoe carried by the rod and sliding on the support, a normally relaxed spring over the shoe, a plunger resting on the spring, a stop member having a forwardly extending wedge face arranged for engagement by the plunger to apply the brake as the plunger slides under the stop member, and a spring associated with the brake carrying rod to absorb the momentum of the head and apply itsv expansive force to withdraw the brake from under the stop member.

17. In a lasting machine, the combination with a support, of a heel lasting head movable along the support, means to' latch the head in a definite position on the support, a spring arranged to move the head from such position when permitted, a last carrier movable relatively to the support, means for latching the last carrier in a definite position on the support, means to lift the head latchingmeans, and a connection operated by the head latching means through which the last carrier latching means is released simultaneously with the head latching means. 7

18. In a toe and heel lasting machine having means for wiping the upper over the toe and heel ends of a last into position to be fastened by hand driven tacks, the combination with a support, of a heel spindle thereon to uphold the last while the heel lasting tacks are being pounded down, and an arm upheld by said support and swiveled on the said spindle and having a rest to sustain the toe of the shoe while the toe lasting tacks are being pounded down.

19. In a lasting machine, the combination with a lasting head supportin heel lasting mechanism, of means for sustaining the heel portion of a last comprising an approximately U-shaped member one arm of which is longitudinally bored and is adapted to extend through the leg of a boot and the other arm of which extends toward and is supported from said lasting head, a lastengaging member having a shank portion slidably mounted in the longitudinal bore of said first arm, and means for actuating said last-engaging member.

20. In a lasting machine, the combination with a lasting head supporting heel lasting mechanism, of means for sustaming and positioning the heel portion of a last comprising an approximately U-shaped member haw ing one arm provided with a longitudinal bore and adapted to extend through the leg of a boot and having its second arm supported from said head, a last pin having a supporting shank slidably mounted in the bore of said first arm, means for drawing said U-shaped member into co-operative relation to the lasting mechanism, and means to slide said shank and last-pin in said arm as said U-shaped member draws the last into the lasting mechanism.

21. In a lasting machine, the combination with a'lasting head supporting heel lasting mechanism, of means for sustaining and positioning the heel portion of a last and shoe relatively to said lasting mechanism comprising a slide in said lasting head, an approximately U-shaped member supported by and depending from said slide and having one arm longitudinally bored and adapted to extend through the leg of a boot, a last supporting spindle slidably mounted in the bore of said arm and carrying a heel pin, means for drawing said slide and U-shaped member backwardly into operative relation to the lasting mechanism, an actuator for said spindle underlying the arm, manually operable means for moving said actuator to raise said spindle, and means for further moving said actuator carried by the other arm of said U-shaped member and automatically operated upon backward drawing movement of the slide further to raise the spindle and heel pin.

22. In a lasting machine, the combination with a support, a heel lasting head movable along the support in a direction longitudinally of a supported shoe, means to latch the head in a definite lasting position on said support, means automatically operativefto retract the head from lasting position when said'latching means is released, a last car move the head latching means to release the head, and a connection between said latching means and the latch for the last carrier operated by releasing movement of said latching means coincidently and simulta'neously to move the latch of the last carrier to release said carrier.

23. In a machine for lasting high boots, the combination with lasting mechanism, of a support for a boot comprising a depending rear arm and an upwardly extending 'front arm arranged to extend within the leg of the boot and-so constructed as to permit the boot to be positioned on the support without distorting its leg portion, a last pin supported on said front arm for movement lengthwise of the arm to position the boot relatively to the lasting mechanism, and means for moving said support and for simultaneously moving the last pin lengthwise of said arm to position the boot.

2-1. Ina machine forlasting high boots,

the combination with lasting mechanism, of

a support for a boot comprising a substan tially U-shaped device one arm of which is arranged to extend within the leg of the boot and so constructed as to permit the boot to be mounted upon it without distorting the leg portion, a last pin on said arm, and means for moving said last pin length-- wise of the arm to position the boot relatively to the lasting mechanism.

25. In a lasting machine, the combination with lasting mechanism, of a work support mounted for movement toward and from said lasting mechanism and comprising a substantially U-shaped device one arm of which is arranged to support a last pin, alever mounted on said device at its closed end, thrust members extending lengthwise of-the arms of said device and arranged in operative relation to the lever, and means acting through (said thrust members and lever as the device is moved toward the lasting mechanism to move thelast pin for pcsitioning the work'relatively to said mechanism. 4 j

26. In a lasting machine, the combination with lasting mechanism, of a work'suppor't mounted for movement toward and from said lasting mechanism and comprising a substantially "U-shaped device one arm of V which is arranged to support a last pin, a lever mounted on said device at its closed end, a thrust member on said arm to trans- Vmitm ovenient from the lever to the last pin,

operative position, a lastcarrier movable relatively to said lasting head into or out of operative position, a latch for retaining said carrier in operative relation to the lasting head, and means operated by said first named latch in its movement to release the lasting head to operate the other latch for releasing the last carrier.

28. In a lasting machine, the combination with a support, of a lasting head movable along-said support into or out of operative positioma latch for'retaining said head in operative position, means'for operating said latch to cause it to release the lasting head, a last carrier movable relatively to said lasting head into or out of operative position, a latch for retaining said carrier in operative relation to the lasting head, a lever one arm of which is connected to said last named latch, and means constructed and arranged for wedging engagement with the 'other'arm of said lever'to impart areleasoperative position, means for operating said latch to cause it to release the lasting head, a' last carrier movable relatively to said lasting head into or out of operative position, a latch for retaining said carrier in operative relation to the lasting head, a pivotally mounted lever connected to" said last named latch, and a second lever pivoted to swing about an axis transverse to the axis of the first lever and arranged to'be operated simultaneously with the releasing movement of vthe first latch, the two levers having wedging engagement with each other to cause the second latch to receive a releasing movement simultaneously with the first latch.

V '30. In a lasting machine, the combination with a lasting head movable into and out of 0perative position, of a brake shoe carried by said lasting head and mounted'forbrake applying movement in a direction trans verse to the direction of movement :of the head, a co-operating friction member which said brake shoe is arrangedto engage, and means into operative relation to'whichthe brake shoe is carried by the lasting headffor' forcing it against said member.

' 31. Ina lasting machine, the combination of operative position, of a brake shoe carried by said lasting head and mounted for brake applying movement in a direction transverse to the direction of movement of the head, a co-operating friction member which said brake shoe is arranged to engage, and means for wedging the brake shoe against said member as the lasting head moves away from operative position.

32. In a lasting machine, the combination with a lasting head movable into and out of operative position, of a brake shoe carried by said lasting head and mounted for brake applying movement in a direction transverse to the direction of movement of the head, a co-operating friction member which said brake shoe is arranged to engage, and means arranged to be rendered operative by the movement or the lasting head away from operative position to force the brake shoe against said friction member including a spring; whereby the pressure of the brake shoe on said member is rendered yieldable.

38. In a lasting machine, the combination with a lasting head movable into and out of operative position, of a brake shoe carried by said lasting head and mounted for brake applyingmovement in a direction transverse to the direction of movement of the head, a co-operating friction membeinwhieh said brake shoe is arran ed to engage, means into operative relation to which the brake shoe is carried by the lasting head for forcing it against said member, and a butter spring; between the brake shoe and the lasting head yieldable to permit a movement 0]": the head relatively to the shoe when the brake is applied.

In testimony whereof I have signed my name to this specification.

MATTHIAS BROCK.

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