US347061A - Heel-attaching machine - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1. P. F. RAYM0ND,-2d. l

HEEL ATT'AGHING MACHINE.

-1\I0..,47,o61. Patented Aug-10,1886l` y @Qua (No Model.) 3 Sheets-sheet 2.-

11.-?. RAYMOND, zd.

HEEL ATTAGHING MAGHINE.- l

Patented Aug.l10, 1'886.

WITNEEEEE "INVENTUR" #@fw m .P Y

mamada.) sheets-sheets..

- P. F. RAYMOND, 2d. I r

, HEEL ATTAGHING MAGHINB. No. 347,061. PatentedAug. 10, 18.86.

,presenting and shoe-centering devices.

VUNITED s STATES PATENT OFFICE..

FREEBORN F. RAYMoNn-zn, oF NEWTON, MASSACHUSETTS.

HEEL-ATTACHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 347,061, dated August 10, 1886.

Application filed January B, 1855. Se1ialNo. 154,3S8. (No model.)

To all whom it may concern:

Beit known that I, FREEBORN F. RAYMOND, 2d, of Newton, in the county of Middlesex and State of Massachusetts, a citizen of the United States, have invented a new and useful-Improvement in Heel-Attaching Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification in explaining its nature.

The invention relates especially to means for compressing and centering` the heel-blank or heel upon the sole of the boot or shoe to which it is to be attached; also, to means for centering the boot or shoe while the heel-blank or heel is being compressed or attached; also, to the combination of the heel compressing and centering. devices and the shoe centering and holding appliances, or either of them, with the pricking, nail feeding and driving mechanism, or what is generally known as the heel-attaching7 mechanism.

Referring to the drawings, Figure I repre` sents in section and front elevation a heel-nailing machine containing the features of my improvement. Fig. 2 is a View in section and side elevation of a portion thereof, further illustrating the invention. Fig. 3 is a View part in elevation and part in vertical section, illustrating one method of operating the heel- Fig. 4 is a view, part in elevation and. part in vertical section, of the device shown in Fig. 3. Figs. 5 and 6 show in plan the heel-compressing device. Fig. 7 shows in plan the shoe-centering device. Fig. Sis adetail view of portions of one of the posts for supporting the sliding block carrying one section of the heel-compressing die and shoe-centering device. Fig. 9 is a View, part in side elevation and part in section, still further illustrating the invention. Fig. 10 shows the position which the presser-plate bears to the heel-compressing dies when it is closed downupon the heel. Figs. 1l and I2 represent in horizontal section modifications which are hereinafter fully described.

The inventionis represented as attached to or forming a part of the National Heel-Nailing Machine, so called.

In the drawings, A represents the bed or table of the machine, upon which slides the jaclcplate a. Y.

.B is the cross-head; C, the revolving head, which supports the awls, drivers, and top-lift spankertoplift holder, and heel breasting knife, or a combination of any two of them.

D is the teinplet or pressure plate.

E is the nail holder and transferrer. The nail-holder and pressureplate are provided with horizontal sliding and with vertical movements; and these portions of the machine are like similar parts described in various patents granted H. A. Henderson and myself. Beneath the cross-head, and preferably attached 'to the' table, are two posts or supports, F, between which is the jack-post a when in operative position. Each of these posts or supports has ways f, formed in its 4upper surface to receive the sliding blocksf, which are secured to their respective posts or supports by the overlapping plates f, which are bolted thereto. These blocks are reciprocated or moved in their respective ways by any suitable mechanism, and they carry at their inner ends the side heel-compressing dies or forms,

G G', the form G being carried by one vof the blocksf, and the form G by the other, and also the shoe centering and holding devices H H.

Each section of the heel-compressor, preferably, is formed with a surface the reverse of the general shape of the side of the heel or heel-blank upon which it is moved, and is therefore curved in horizontal section and inclined inward and downward, as shown. It may be made detachable from its holder, although it is preferable to make it in one piece therewith. I prefer that the front section, g, of each presser shall be so formed upon the lsurface as to exert a wedging action upon the breast of the heel or heel-blank as the compressors close, thereby forcing the heel-blank or heel back against the rear surface of the compressors, and thus providing not only for the accurate centering of the heel, but for the proper application of Apressure to the parts of the heel or heel-blank most beneiittedthereby. It is, of course, essential that these side compressors shall have various adj nstment-s in relation to the boot or shoe support or last M and to the pressure-plate, and I have shown a simple device for providing them with uni- IOO versal adjustment. It comprises the vertical dovetail g upon each holder G G, which enters the vertical dovetail recess g2 in an intermediate piece or bloek, g, and the intermediate piece, g, is provided with a horizontal dovetail, g, which enters the horizontal dovetail recess, g5, in the front edge of the block. It will therefore be seen that by the vertical dovetail construction the side compressors may be vertically adjusted, and that by the locking-screw g they may be locked in any desired position, and that by horizontal dovetails the compressors may be moved horizontally to any extent and locked in any position by locking-screws gl, and that a combination of these two means will lock the compressors in any operative position in relation to the boot or shoe support, or to the templet.

The heel-compressors may have a horizontal yielding'movement provided them when desired, and I have shown in Fig. 12, as a means of accomplishing it, the dovetail recess y* extended back to form the Spacey/S, and the holder as having the recess g, for receiving the spring g, which bears against the surface of each dovetail recess, and acts to hold outward the dies or compressors. Fach sliding block may also carry or support the boot or shoe supporting and centering devices II II, above referred to. rthe centering` device comprises two abutincnts or surfaccs,which approximate the shape of the side and back of the last or shoe support from the shank backward, and they are adapted to be moved simultaneously against the last or shoe-support and move it to a central position and hold the boot or shoe thereto with a greater or less degree of firmness, accordingto the nature of the work. rlhese surfaces or abutinents may be of rubber, leather, or other material of like nature, or they may bc metallic. In Fig. 7 I show the abutmcnts made of rubber, 11, and held by screws, or in any other suitable way, to the metal holders Il', which are shaped to furnish a backing or support for the rubber abutments, preferably so that the shank portions Irof the rubber shall first be brought to bear upon the shank portion of the boot or shoe and its support. Of course the rubber must be so shaped as to assist in accomplishing this purpose; and it is desirable, although not essential, that the abutments upon being moved forward shall first begin to bear at or close onto the shank and press the upper at th at point onto thcsupport, so that any fullness of the upper about the heel may be prevented, and the shoe and its support pressed back and held against the back stop or prevented from being moved forward by the immediately following contact of the abutting surfaces with the side portions of the last or heel-support about the heel. In order to give the rubber abutments some degree of conformability, I have provided them with the corrugations 7l upon their outer surfaces, as represented in Fig. 7. It is intended that the shape of this shoe supporting and centering device shall be such as to embrace the portions of the boot or shoe from immediately below thel outsole downward a reasonable distance, and upon the sides and corners of the heel portion or counter, and preferably forward into the shank. XVhen metal abutting or contacting surfaces are used instead of rubber or yielding surfaces, it will be necessary to mount them upon slightly-yieldiug holders, and for this purpose the construction shown in Fig. ll maybe used.

r[he parts of the shoe centering and sup,

porting mechanism are made adjustable horizontally and vertically, and I represent inthe drawings one means of-obtainin g these adjustments, the holder 7L being provided with vertical dovetail projections 7L", which enter vertical dovetail recesses 'h5 in the intermediate blocks, h", having the projections h?, which enter the horizontal dovetail recesses It in the front of each sliding block. It will be seen that this construction provides the abntments with all the necessary adjustments in relation to the lasts or shoe-supports or in relation to thc side heel-compressors, and that the holders and intermediate plates are locked in any desired position by means of the lockingscrews.

From what I have said it is obvious thatthe side pressure-plates perform two offices: First, they may act as compressors Afor compressing or solidifying the heel-blank by lateral pressure, and, second, they may act as guides in centering the heelblank in relation to the templet and the last or shoe support. It is also of course obvious that when they are used for compressing the heel-blank or heel that they also necessarily center them. I would say, however, that this mechanism can also he used for centering the heel-blau k without compressing it, if so desired, and that the form of the centering-plates will be substantially like that of the compressiiig-plates, although they need not be so nicely made and accurate] y shaped.

As above intimated, the blocks f may be moved in any desirable way. It is necessary, however, when the attachment is applied toa machine containing the elements 0f theattaching-machines above described that the operation of the machine and thetiming of the movement ofthe blocks he substantially as follows, namely: The boot or shoe beingadj usted upon its support, which maybethe last upon which it was lasted orbcat out,or which may be an iron support, thejack is moved into position. The heel is then placed between the compressors, which are opened sufficiently to receive and hold it. rlhe machineis then setin operation, the blocks carrying the heel-pressure plates and centering devices are immediately moved inward, bringing pressure to bear upon the edge ofthe heel-blank and centering it, and it' the shoe-centering devices and supports are used they will project somewhat in l'ront ofthe compressors, or so that they may he brought in contact with the last or shoe-support before the compressors begin to compress or IXO 347,061 Y Il solidify the heel-blank or heel, for it is essential that the boot or shoe be centered before the heel-compressors begin to solidify the heelblank, as the pressure is not only lateral but downward upon the sole of the boot or shoe;

and immediately after this lateral pressure has been applied thepressure-plate is moved downward andthe heel-blank or heel submitted to vertical pressure from it. The awls preferably are at the same time' driven and withdrawn, the nails fed by the n ail holder and carrier and driven while the heel is held compressed by the side compressors and pressureplate, and after the nails are driven the pressure-plate may be removed and the heel-blank or heel spanked by thespanker while still under the lateral compression of the side pressure-plates. It will therefore be seen from this description that the mechanism for operating the sliding blocks must be such as to movethe pressure-plates inward immediately upon the l starting of the machine, and before the awls begin to pierce the heel, and that the pressure-plates must be held stationary during the reciprocation of the awls and the feeding` and driving of the nails, when they may be withdrawn, or they may be held closed upon the sides of thcheel or heel-blank until the spanker has been reciproeated. Therefore the meehanism for moving the blocks not only must be moved quickly and powerfully, but the blocks must be held locked after having been so moved and during the manipulations which I have mentioned. I have shown in the drawings for accomplishing these objects thelevers N, which are made very strong, and are pivoted to the posts or supports F by sliding fulcrum-pins a, which not only slide in slots in their respective posts or supports, but also slide in slots a in the levers, and I am thusenabled to obtain variation in the throw of the upper ends of the levers. Theselevers are 0perated by means (in one instance see Fig. l) of the wedge-blocks a2, which have the wedgingsurface as and the straight surface n4, and are adapted to be moved vertically in their guides by the cams n upon the shaft n, the cams being so shaped as to impart a prompt vertical movement to the wedge-blocks immediately upon starting the machine, and the wedgeblocks are thereby driven upward behind the levers, causing the upper ends to be moved forward, and they are moved up suiiiciently to bring their straight portions behind the levers, thereby locking the levers in posit-ion, and at the same time they are prevented from falling back or returning by the friction or pressure of the levers thereon. This permits the cams to be moved on, and when the cams are upon the crank-shaft of the machine it is of course obvious that the cams will continue to revolve while the wedge-blocks are held up by the friction of the ends of the levers upon them, and that they will continue thus suspended unless there were some means of moving them downward at proper intervals of time; and this motion I have provided by means of the levers nl, which are pivoted at as, and which are connected with the upper portions of the wedge-blocks and extend backward, and have downward-extending arms n, which are shaped substantially as shown in Fig. 2, so that the wiper am upon the shaft a, which revolves one revolution to every three of the cam-shaft, shall at proper intervals of time strike the ends of the arms and move them downward, thereby causing the levers to move the wedge-blocks trom behind the levers N,and permitting the spring n to move out the upper ends of the levers, thereby separating the pressure-plates.

In lieu of the wedge-blocks and cam I may use the construction shown in Figs. 3 and 4, which is on some accounts more desirable, and it comprises a toggle-joint, o o', the outerends of which are connected with the lower ends of the lever N. The inner ends of the toggle are pivoted to each other and to the sliding block o2, which has a vertical movement in the guides o, extending downward from the bed A. This sliding block rests upon the cam o* upon the crank-shaft a, which is so shaped as to impart to it upon the beginning of the revolution of the shaft a sharp upward movement, thereby straightening the toggle o o and moving the lower ends of the levers N outward, and the cam holds the block in this position until the cam o5 on the shaft n has been revolved suflicient to support the lever ogwhich passes through the hole in the sliding block o2 and has been lifted with the block bythe cam 0*. This cam o5, making but one revolution, holds the block o o`z up, while the liftingcam o",which makes three revolutions to every one of the cam 05, continues to revolve.

Il' desired, the cam 05 may be so shaped as to increase the `pressure on the dies or pressers at any point in its revolution, so that there may be, if desired, a graduallyincreasing compression exerted during the entire time that the heel is submitted to the action of the dies or prcssers; o r the pressure may be varied, so as to be greater at certain periods and less at others. This result is obtained, of course, by changing the shape of the cam o5, the lever ol' course following the shape of the cam, and being lifted or let down, as the ease may be. The weight of the block-toggle will be sufficient generally to return them to their normal condition when the cam o5 has been moved sufficiently to permit it; but it' it is desired to have a quick return a spring, o7, attached to the end of the lever o at any stationary part of the machine below it, may be employed.

lt will be desirable, when the dies G G are used for compressing-dies, to have the templet or pressure plate formed with a projection, d, of a size to'enter at the top of the die, so that it shall compress by a vertical movement the heel-blank within the dies. (See Fig. 10.)

In Fig. 11 I have shown the die or presser G G made in two parts, p p', connected with each other by a stud-post, p2, about which is arranged a strong coiled spring, p, which is adapted to hold the two parts comprising the section together, while it permits a slight yielding movement of the partp in relation to the part p', so that provision is given in the dies for their automatic adjustment to the heel-blanks somewhat varying in size.

In operation, the boot or shoe is placed upon the last or work support in an inverted position to receive the heel-blank. Thejack is moved horizontally to bring the last or work support between the two heel-compressors G G', and also between the shoe centering and holding devices II H'. The heel-blank is placed upon the sole of the boot or shoe in position between the heel compressors G G'. Upon the starting of the machine the shoe centering and holding devices H H' are closed upon the heel end of the boot or shoe, and caused to accurately center the sole and to hold the boot or shoe firmly upon the last or work support. This is immediately followed by the closing of the heel-compressors G G upon the side surfaces of the heel, compressing it by lateral pressure, and at the same time forcing it downward or against the sur face of the outsole, so that the heel-blank is molded upon the outsole and in the position which it is to always occupy in relation thereto. This lateral compression and locating of the heel-blank upon the sole is immediately followed by the downward movement of the templet, which provides an additional vertical compression of the heel-blank upon the sole, so that it is not only formed thereon by the lateral compression, but also additionally by the vertical compression, and while it is thus held in its permanent position upon the sole the nail-driving devices are caused to be operated, and the heel rigidly or permanently fastened to the boot or shoe, and while held formed or shaped under pressure.

I am aware that it is not new to solidify and form the side or vertical surface or su rfaces of a detached heelblank by lateral compression, and I do not wish to be understood as broadly claiming this, as the object of the invention is not to compress, solidily, or form the side surfaces of detached heel-blanks, but it is to compress, solidify, and l'orm heel-blau ks upon the soles of the boots or shoes to which they are to be attached, and while they are being attached, so that there shall be a special relation between each compressed heel and the boot or shoe to which it is to be secured, and so that it can be molded upon the sole of the boot or shoe with which it is to be used, and while thus molded be permanently attached or secured thereto. rIhat this varies from a heelblank-forming mechanism is obvious, as the heel-blank-forming devices above referred to simply compress or form the surface of the heel with no reference to the particular boot or shoe to which it is to be attached. That it varies from all heelattaching machines heretofore used is obvious l'rom the fact that such machines do not contain any devices for compressing a heel-blank laterally and in permanent position upon the sole of the boot or shoe to which it is to be attached, and for holding it thus compressed while the attaching-nails are being driven, and this is a very important element in providing for and obtaining the accurate forming and itting of the heel-blank, and for obtaining a solid heel and solid fastening, with the best results from edge or lateral compression.

Having thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a machine for compressing heels and attaching them to boots and shoes, the combination of a support or jack, and a last mounted thereon for holding the boot or shoe and presenting it to the heel-compressing and heel-attaching deviees,the horizontally-movableheeleompressors G G', and nail-driving devices, whereby the heel-blank is compressed by lateral and vertical pressure upon the sole of the boot or shoe to which it is attached, and while 9@ it is being attached, all substantially as and for the purposes described.

2. In a machine l'or co mpressing heel-blanks and attaching them to the soles of boots and shoes, t-he combination of a jack or support, and a last mounted thereon for holding the boot or shoe and presenting it to the heel-compressing and heel-attaching devices, with the horizontally-movable heel-compressors G G', the vertically-movable pressure-plate or templet D, and nail-driving devices, all adapted for successive and conjoint action in an organized machine, substantially as and for the purposes described.

S. In a machine for attaching heels to'boots and shoes, the combination of a jack or support, and a last mounted thereon vfor holding the boot or shoe and presenting it to the heelattaching devices, with the horizontally-movable shoe centering and holding devices I-I H', adapted to be automatically moved to center and hold the shoe after the jack or support has been moved into operative position and the machine set in operation, substantially as described.

4. In a machine for compressingheclblanks and attaching them to the soles ot boots and shoes, the combina-tion ol` a jack or support, and a last mounted thereon for holding -the boot or shoe and presenting it to the heel compressing and attaching devices, shoe centering and holding devices II 1I', the heelcompressors G G', the templet I), and naildriving devices, whereby the boot or shoe is automatically centered and held, and the heeleomprcssing devices then caused to compress and it the heel upon the clamped sole, and the nail-driving devices actuated to attach the heel-blank while thus held compressed permanently to the boot or shoe, substantially as described.

5. In a machine for compressing heel-blanks and attaching them to the soles of boots and shoes, the combination of a. jack or support,

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and a last mounted thereon for holding the boot or shoe and presenting it to the heellcompressing and heel-attaching devices, the

heel-compressing devices G G', the heel-attaching devices, themain shaft of the machine, and mechanism, substantially as specied, for connecting it respectively with the heel-compressors and heel-attaching devices, whereby said compressors and devices are caused to be successively operatcdall substantially as described.

6. The combination, in a machine for compressing heel-blanks and attaching them to the soles of boots and shoes, of a jack or Worksupport, and a last mounted thereon for holding the boot or shoe and presenting it to the heel-compressing and heel-attaching devices, the heel-compressors G G', and means, substantially as specified, for adjusting them vertically in relation to the jack or heel-support, and nail-driving devices, substantially as described.

7. The combination, in a machine for compressing heel-blanks and attaching themto the soles of boots and shoes, of a jack or support, and a last mounted thereon for holding` the boot or shoe and presenting it to the l1eelcompressing and heel-attaching devices, the heel-compressors G G', and devices, substantially as specified, for adjusting them horizontally in relation to the last or Work-support, and nail-driving devices, all substantially as and for the purposes described.

8. The combination, in a heel-attaching machine, of the last or Work-support, and a last mounted thereon, the sliding boot or shoe centering and holding devices H H', and devices, substantially as specified, for adjusting them horizontally in relation to the last or worksupport, substantially as described.

9. The combination, in a heel-attaching machine, of a jack or Work-support and a last mounted thereon, the sliding boot or shoe centering and holding devices H H', and means, substantially as specified, for adjusting them horizontally in relation to the worlcsupport, substantially as described.

10. In a heelnailing machine, the combination of the shoe centering and holding devices HH', the sliding blocks f and their operating-levers N, all substantially as and for the purposes described.

11. In a heel-nailing machine, the combination of the heel centering and holding devices H H', the heel centering or compressing dies G G', their supporting-blocksf', and their operating-levers N, all substantially as and for the purposes described.

nation of the blocks f', supporting the heel centering or compressing dies G G', and shoecentering devices H H', the levers N, the toggles o o', the sliding block o2, and the cam 0*, substantially as described.

14. In a heel-nailing machine, the combination of the block F, carrying the shoe-centering devices H H', and the heel-centering devices or compressing-dies G G', the levers N, toggles o o', lifting-block o2, and cam o5, substantially as described.

15. In a heelattaching machine, the heel compressing or centering dies G G', having the front sections, g, shaped upon their inner surfaces, as described.

16. In a heelnailing machine, the shoe centering and holding devices H H', comprising the movable blocks or holders h', shaped substantially as specified, and lined with rubber h, or other suitable materia1 substantially as described.

17. In a heel-nailing machine, the shoe centering and holding devices H H',attached, substantially as specied, to their holding-blocks to yield horizontally in relation thereto, all substantially as and for the purposes described.

18. The colnbination of the block g3, having a recess, g8, shaped substantially as specified, thedie G, having a projection entering the recess g8, and the spring g1", as and for the purposes described.

19. A die, G, made in two sections, 1J p', shaped substantially as described, and held together by a connecting pin or device, p2, and a spring, p3, for closing and maintaining the sections closed, substantially as described.

20. In a heel compressing and attaching machine, the combination of a jack or support, a last mounted thereon for holding and presenting boots a-nd shoes to the compressing and attaching devices, the heel-compressors G G', the templet-plate D, having the downward projection d, adapted to enter the die space or recess, and the heel-nailing devices, substantially as described.

FREEBQRN F. RAYMOND, 2D.

Witnesses:

J. M. DoLAN, FRED. B. DoLAN.

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