US566359A

US566359A - Sole-nailing machine

Info

Publication number: US566359A
Authority: US
Publication date: 1896-08-25
Anticipated expiration: 1913-08-25

Description

(No Model.) 9 Sheets-Sheen '1' H. WEEKS & J. E. TUTTLE. SOLE NAILING MACHINE.

No. 566,359. Patented Aug. 25, 1896.

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NITED STATES I ATENT FFICE.

HORACE \VEEKS, OF BOSTON, AND JAMES E. TUTTLE, OF CHELSEA, MASSACHUSETTS, ASSIGNORS, BY MESNE ASSIGNMENTS, TO THE SUFFOLK NAILING MACHINE COMPANY, OF PORTLAND, MAINE.

SOLE-MAILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 566,359, dated August 25, 1896. Application filed January 5, 1892. Serial No. 117,072- (No model.)

T aZZ whom it may concern.-

Be it known that we, HORACE WEEKS, of Boston, and JAMES E. TUTTLE, of Chelsea, in the county of Suffolk and State of Massachusetts, citizens of the United States, have invented a new and useful Improvement in Sole- Nailing 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 is in some respects an im provement upon that described in Patent No. 358,710, dated March 1, 1887. It comprises the arrangement in an organized machine of mechanism for forming headed pointed nails from wire and feeding them in consecutive order to the driving devices, a horn for supporting and presenting the boot or shoe sole to the nailing-throat, a shoe-feed, and an apparatus for varying automatically the length of the nail by the thickness of the stock. More specifically the machine contains, first, a wire-feed of peculiar construction and adapted to impart two feeding movements to the wire for each nail made, one to govern the length of the nail and another to move the headed nail upon the end of the wire from the heading-dies to a position to permit the severing of the headed nail from the wire by the movement of the nailcarrier; second, two pairs of gripping-jaws for simultaneously grasping the wire, one pair of which is stationary and has head-forming recesses, and the other of which is movable toward and from it to head the nail by upsetting the interposed section of wire; third, a point-forming cutter for removing from one side of the wire a long triangular section fourth, a nailcarrier to sever the headed pointed fastening from the partially-formed wire and carry it to a position under the nail-driver; fifth, a nail-carrier having the end forming one wall of its throat or nail-holding recess connected or attached to the carrier to open and close, whereby the carrier can be moved away from the main throat before the driver has been raised from it, and the end then be closed to form a proper receivin g hole or throat; sixth,

a horn for supporting the work mounted upon a toggle,and devices for imparting movements to it and its movement to the feed; seventh, various details of construction and organization, all of which will hereinafter be fullyset forth.

Referring to the drawings, Figure 1 is a View in side elevation of the head of a nailingmachinehaving the features of ourinvention. Fig. 2 is a view in front elevation thereof, a portion of a cam being removed to represent the construction beyond. Fig. 3 is a view, enlarged, in vertical section on the dotted line w w of Fig. 1. Fig. 4 is an enlarged horizontal sectional view on the dotted line :1; w of Fig. 1. Fig. 5 is an enlarged view, in horizontal section, on the dotted line y 1 of Fig. 1. Fig. 6 is a View, enlarged, in horizontal section upon the dotted line 2 z of Fig. 1. Fig. 7 is a view in section of the base of the machine, showing the horn in elevation and the horn controlling and operating devices. Figs.8, 9, 10, 11, 12, and 13 are detail views, principally in section, to represent the various positions of the point-forming, headforming, and transferring devices hereinafter particularly referred to. Fig. 14 is a view, enlarged, to represent a portion of the startand-stop mechanism of the machine. Fig. 15 is a detail view to illustrate the horn-adjusting device. Fig. 16 is a view in vertical section to illustrate especially a portion of the feed mechanism. Fig. 17 is a view in cross section upon the dotted line of Fig. 16. Fig. 18 is a View, enlarged, of the feed-clutch. Fig. 19 is a view, principally in left-side elevation, to show a wire counter or measurer, to which reference is hereinafter made. Fig. 20 is a detail view, enlarged, to show the cam for moving the horn and a portion of the connection. Figs. 21, 22, and 23 are detail views, principally in horizontal section, taken immediately above the nail-carrier.

The base A of the machine supports the horn a and a column A, upon which is mounted the head A The head comprises the frame B and the parts mounted upon it. The frame supports-the main shaft C of the machine, and it has loose upon its rear end (see Fig. 14) the member of a clutch, which also forms the driving-pulley. The member 0 of the clutch slides upon the shaft and a fast feather or key and is operated to engage and disengage the member 0 of the clutch by means of a treadle 0 (see Fig. 7,) which is pivoted at 0 a connecting-rod 0 a rocking bell-crank or bent lever (see Fig. 14,) pivoted at c, provided with a forked upper end to engage by means of pivots a collar 0 in the recess 0 formed in the hub c" of the clutch member 0. The spring 6,fastened to the connecting-rod c at its upper end and at its lower end to the frame, (see Figs. 7 and 14,) serves to remove the driving member of the clutch from the driven member and to maintain it disengaged therefrom. By depressing the treadle and raising the rod the member 0 is moved into engagement with the driving member 0. It is held in such engagement and with additional force or pressure, if desired, by means of the cam 0 upon the shaft 0. This cam operates through the cam-pin 0 (see Fig. 14,) which preferably is tapering,and bears against the tapering cam-surface, and which is attached to a slide 0 movable in a guideway, hole, or recess in the frame. The outer end of this slide is moved by the cam into contact with the end 0 of a branch or arm 0 of the bent lever c or an adjustable head or buffer 0 carried at the upper end of said branch. In the drawings this adjustable head is represented as obtained by means of a bolt screwing into a threaded hole in said upper end, by which its head which forms the buffer is set in or out in relation to the lever, and which is held in its adjusted position by a check-nut c. The cam-pin 0 is held upon the lower end of a stud 0 which is itself held in position in the slide 0 by the plate 0 and the screw 0 The cam is shaped to act against the member 0 of the clutch immediately after it has been moved by the treadle into operative contact with the member 0 and to hold it in such position with any desired stress required during the greater part of one revolution, and upon the release of the member c by the cam the spring 0 immediately draws the member 0 from contact with the member 0 and, if desired, against a brake.

The wire 01 from which the nails are made is mounted upon the reel D, carried at the upper end of the curved arm d, bolted to the frame 13. It passes through the eye (1 and hole d to the wirefeedin g mechanism, which comprises the feed-roll d and a grooved tension-roll (Z which bears with yielding tension against the wire and holds it in a sufficiently forcible contact with the roll C1 The roll (1 has two feeding movements imparted to it during each rotation of the main shaft 0. Its shaft has at its end opposite the feedingroll the turning mechanism or clutch, which is similar to that described in the application of the applicant Weeks, No. 391,319, filed May 4, 1891, and consisting, essentially, of a block or disk mounted upon the shaft to be reciprocated and having tangential surfaces and an enveloping case fast to the shaft and interposed rolls.

d Figs. 6, 17, and 18, represents the reciprocating block. It is actuated by means of a cam 61 on the main shaft connected with the block d by means of the cam-pin d (see Fig. 1,) the slide d and the connecting-link d (see Fig. 6,) and the spring 01 The cam d is a side-edge cam and has two principal operative sections, one of which is always used uniformly, that is, to give a uniform feed to the wire, and the other of which is to provide a variable feed. The uniform feed is obtained by the section 01 of the cam, the variable feed by-the section @1 Of course the intermediate section of the cam acts to hold the slide and other parts against the tension of the spring d. The feed-section 61 is used in operating the feed-rolls to cause them to feed the wire sufficiently to advance the nail the thickness of the heading-dies and jaws, so that after it is headed it is caused to be fed by the wire the thickness of the dies and jaws to the nail-carrier, as will hereinafter appear. The variable section (1 of the cam is permitted to act according as the slide d and cam-pin d are allowed to be moved backward by the spring 61 The farther backward they are moved the longer contact they will have with the section (Z of the cam and the greater the movement of the feedroll. The position of the slide and cam-pin is automatically controlled and varied by the thickness of the work operating through the movable stop 01 (see Fig. 1) and intermediate devices connecting it with the horn, whereby the movement of the horn causes a change in the position of the stop. This result is illustrated as obtained by forming the stop at the upper end of a bell-crank lever (Z pivoted at (Z (see Fig. 1) and connected by means of the rod 01 with the lever (Z (see Fig. 7,) pivoted at 01 and having its end 61 held by the spring 01 upon the upper surface of the adjusting device 61 on the hornspindle a. The height of this block c1 governs the horizontal location of the stop d, and this block is adjusted in the first instance, or before the machine is started, to the thickness of the work to be nailed. It follows that the stop d is then moved to a position suitable for enabling the section (Z of the cam to feed the proper length of nail desired, and as the thickness of the stock varies from this predetermined position the position of the stop (Z is moved in ward as the stock becomes thinner, or outward as it becomes thicker.

We have illustrated the slide 01 as extensible at its rear end, in order that it may be made easily adjustable to the throw of the stop and the cam and also as a take-up for wear. This is represented as obtained by means of a headed bolt d gwhich screws into a threaded hole in the end of the slide and is held locked thereto by a check-nut 01 In other words, this headed adjustable extension isarranged between the slide and the stop at. The wire in the regular operation of the machine is first subjected to the operation of the head-formin g devices. These comprise two sets of jaws, one for grasping the lower end of the wire and provided with a headforming recess and the other for grasping the wire a short distance above the head-forming recess and holding it while they are moved toward the head-forming jaws to upset the section of the wire between the two sets of jaws into the head forming cavity of the lower jaws.

E represents the upper set of jaws, and E the lower set. The upper set comprises the fixed section or jaw 6, attached to the slide 6, and the movable section or jaw 6 attached to a pivoted holder e This holder is pivoted at e to the slide a, (see Figs. 2 and 3,) and it has a suflicient movement in relation to the fixed section 6 to permit of the reciprocation,when it is open, of the point-forming cutter and cutter-block across the path in which it is moved. (See Fig. 3, also Figs. 8, 11, 12, and 13.) Closing and opening movements are imparted to the jaw-holder c and jaw e by means of the toggle 6 formed of the two links 6 e", the upper one being pivoted to an adjustable block a and the lower one being pivoted to the jaw-block c Movement is imparted to the toggle by means of the lever 6 pivoted at 6 (see Fig. 2,) a camgroove in the inner disk e on the main shaft, and a link e extending from the lower end of the lever and connected with the toggle. The heading jaws or dies Ecomprise the sections e 6 (see Fig. 4,) each of which has a semicircular cavity and a section of a headforming recess. These are mounted, respectively, upon the arms 6 c which are pivoted at e and which are opened and closed by the toggle e, and the slide a, operated by the lever 6 pivoted at 6 and the camgroove 6 in the cylinder-cam 6 upon the shaft 0, the lower end of the lever 6 being connected with the slide by a link 6 and a block 6 (See Figs. 1 and 4.)

In use the two sets of jaws or dies which are open during the feeding of the wire (see Fig. 8) are closed upon the wire, (see Fig. 9,) and the upper set while held closed is moved by its slide downward to the lower set, (see Fig. 10,) thereby upsetting the short section E of wire between the two sets (see Fig. 9) into the head-forming recess of the lower set. (See Fig. 10.)

The slide 6 is suitably mounted in a vertical guideway in the frame B, and has clownward and upward movements imparted to it by the toggle e (see Fig. 1,) the lower link of which is pivoted to the slide and the upper link to the adjustable block 6 The toggle is closed and opened by means of the cam e on the main shaft, the lever e pivoted to the frame B at e and having a cam-pin to enter the cam-groove of the cam and a link e connecting the lower end of the lever with the toggle. After the head has been upset, and while the slide e is still depressed, (see Fig. 11,) the die-carrier e and the die-section e are moved away from the die-section e, exposing a section of the wire above the upset head-formin g section and forming a sufficient cavity or space for the reciprocation or movement of the point-forming cutter F. This cutter is of a shape to sever from the side of the wire a long triangular section, the base of which is severed from the upper surface of the upset head. The cutter is mounted upon a block f, (see Figs. 5 and 1,) which is held in a suitable slideway and reciprocated at desired intervals by the cam f upon the shaft 0, lever f pivoted at f and having a cam-pin f to enter the cam-groove of the cam and connected at its lower end with the slide by a link. The cam holds the slide and cutter out of position during the closing movement of the. die-section e and while it is closed and until it is opened to the position represented in Fig. 11, when it is moved rapidly across its path, severing the section from the side of the exposed wire and pushing the waste througha front opening. The slide 6 is then lifted, the head-forming dies opened, and the wire fed sufficiently to bring the head-forming section on a line with the upper surface gof the nail-carrier G, it being understood, of course, that the nail-carrier has been in position during the last-named operation to bring its throat g in line with the recesses of the dies. The nail-carrieris then moved to transfer the nail to a position beneath the driver H, (see Figs. 12 and 13,) and in so doing severs the nail from the cutwire section above it, or at E (see Fig. 12,) thus leaving the end of the wire above it pointed to form the pointed end of the next nail. I

The nail-carrier G is reciprocated in its slideway by means of the lever 9 (see Fig. 4: connected by a ball end g and slide g with the nail-carrier, (see Figs. 21 and 22,) the nail-carrier having rearward-extending lugs forming a slideway for the reception of the slide 9 The lever g is connected by a rock-shaft at g with the lever g, (see Fig. 6,) which carries at its end a cam-pin g to enter the cam-groove'g in the cam g upon the shaft 0. This cam, the lever g and rock-shaft also communicate movement to the shoe-feed, as will be hereinafter indicated. The nail-carrier G has a long slot 9, (see Figs. 8 to 13, inclusive, Figs. 21 and 22, and

Fig. 3,) and its section forms one wall of the throat andis hinged at to the block to be opened to the position represented in Fig. 23, and it is closed and held closed by the spring g. It is also closed and held closed at the end of its carrying movement in the feedway by the bar or stop 9, with which it comes into contact (see Figs. 13 and 22) and which preferably extends across the slot 9 of the carrier. This construction is employed because the time of the machine is such that the driver H is not lifted from the throat of the carrier before the backward movement of the carrier to bring its throat into line to receive the wire as it is fed is commenced, but by hinging the section g, as above specified the movement of the carrier may be commenced and the throat opened by the opening movement of the section g to clear the driver and against the pressure of the spring 9 which afterward serves to close the section g when the carrier has been moved to the position shown in Fig. 8. The naildriver H is moved downward in the hole h, the throat g of the nail-carrier, and the lower throat h at desired times by means of the spring-actuated pivoted driving-arm 7L2. (See Figs. 1, 2, and 3.) This driving-arm is pivoted at h and has at its outer end a pivoted head 72 which has in its lower surface a rounded cavity its to fit the rounded upper end h of the driver-bar 72 (See Fig. 3.) Te prefer to use for the impelling-sprin gs the oppositely-arranged coils h 71, mounted upon barrels 71 (see Figs. 2 and 3,) carried by the shaft or pivot h and having their outer ends 71, and 71 respectively, bearing upon the upper surface of the lever 7L2. (See Figs. 1 and 2.) The confined end of each spring is held in a disk It, (see Fig. 2,) which is adapted to be turned to produce the desired tension upon the spring and to then be fastened to the arm 01 by a fastening-pin 72. each of the disks being provided with perforations placed quite closely together and of a size to receive the pin. (See Fig. 1.) The arm cl is spread or separated at this point to form an opening of sufficient size to receive the barrels, lever end, and tension-adjusting disks. (See Fig. 2.) The driving-rod has at its upper end the buffer 71, and it is lifted, thus compressing the driving-springs, and held by means of the cam 71 upon the main shaft 0, (see Figs. 1 and 2,) the said cam acting upon the driverbar in the usual manner through the foot h", secured to the bar and projecting into line with the path of the cam. The cam has a lifting-section, a long rest, and a drop-section. The shoe-feed M is located immediately behind and below the lower end of the throat h. It is adjustably secured by a dovetail connection and fastening-screw to the reciprocating block or holder m, to be movable toward and from the throat. This block or holder is in the form of a somewhat long lever pivoted at its rear end m, (see Fig. 5,) and it is reciprocated or moved at the desired intervals by means of the cam working through the rock-shaft 9- the rock-shaft having a lever m (see Fig. 5,) which is connected with the feed lever or block by means of the lever m rock-shaft m lever m and link on. (See Fig. 5.) The connection between the lever m m is such that the length of the stroke of the feed may be varied to any required extent. This is obtained by means of the slot m in the lever m the slot m in the lever m and the ad ustable connection comprising a slide-block mounted in the slot m and having a stud carrying a roll movable in the slot m the whole being held in place by the screw m By varying the position of this adjustable connection the stroke of the lever is changed. The shoe-feed M has a roughened or serrated edge. The horn a is of the usual shape and preferably has a cup-shaped depression at its upper end. It is mounted at the upper end of a rotary spindle a, preferably vertically movable in bearings a a in the base A. This spindle has the adjustable block (1 and a block a, which rest upon the forked ends of the lever a This lever d is pivoted at a and is connected with the horn lifting and lowering cam a upon the main shaft by means of a lever a pivoted at at", having a cam-pin a' to enter the camgroove ca of said cam and connected at a with the upper end of the rod on. This cam, acting through the rod and lever a serves to provide the horn with the lifting and falling motions necessary, it being understood, of course, that the horn is lifted to move the sole into contact with the throat during the driving of the nail and then released or dropped to release the sole or shoe from the throatnozzle and to permit the shoe-feed to operate to feed the shoe. To relieve the horn and work from the shock of the driver-blow, there is provided a cushion-spring. This is illustrated as applied between the lever a and the rod by means of the intermediate connection (0 pivoted at ca to the lever a and having a hole which receives the lower end of the rod, the rod passing through the hole and having nuts upon its lower end. Between the upper surface of this connection a and an adj usting-nut a upon the rod 6613 is the coiled spring a", which may be set at any tension and which permits slight upward yielding movement of the connection a when the horn is moved downward by the shock of the driving-blow. This does not interfere with the lifting and dropping movements of the horn-lifting cam. The horn is adjusted as to height by means of the adjusting device (Z This is formed in two sections n n, which have the oppositely-arranged spiral surfaces a n respectively. The block 01 is pinned to the horn. The block n rests upon the block a The block n also has a spring latching-pin n adapted to engage one of a series of holes at in the block 41. By releasing this latch and turning the block at in one direction or the other the vertical position of the horn is varied. This adjustment is only for the purpose of varying the height of the horn to varying thicknesses of work. It is necessary that the horn should have in addition quite an increased vertical movement to permit the boot or shoe to be readily placed upon and removed from it. This is accomplished by making the support 13 for the pivot a of the lever a vertically movable and by providing it with vertical movement by means of a toggle P, one link, p,of which is connected IIO with the vertically-movable support 19, and the other link, 19 is pivoted at p to the base. The pivot-support 19 has a steadying-pin 19 extending into a hole in a section of the frame. The lower link 19 has the short arms 11 12 The arm 19 is connected by a link or rod 10 with the closing-treadle 19 The arm 19 is connected by the link or rod 19 with the opening-treadle 19 The toggle has stops 1) for holding it in its vertical position and stops p for holding it in its broken position.

The operation of the machine has been described in connection with the description of the various parts and will only be briefly summarized here.

The horn being depressed by the breaking of the toggle P, the work is placed upon it and then lifted by restoring the toggle to a vertical position, it being understood, of course, that the horn has first been adjusted to the thickness of the work to be nailed. The machine is then started and is operated so long as the foot is kept upon the operatingtreadle. In other words, the machine can drive one fastening or a succession of fastenings. Upon the starting of the machine the parts operate to first feed the wire, then grasp it and upset the head, then to form the point, then to again feed the wire, then to sever or detach the formed nail and carry it beneath the nail-driver, at the same time to lift the horn into contact with the nozzle and to drive the fastening, and then to return the nailcarrier into a position to receive into its throat the wire end. During the backward movement of the carrier thehorn is released and drops with the work from the nozzle. The shoe-feed is operated during the forward movement of the nail-carrier.

It will be seen that by this machine a fastening of a peculiar character is made from the wire, fed and driven, the fastening having an upset head of a size considerably larger than the shank of the nail and extending concentrically in relation to it and having a clenching-point formed by the removal from one side of a long triangular slice or section. This forms a fastening which is applicable to many kinds of boot and shoe work, and among them we would mention the attachment of soles to insoles, the attachment of taps, toe-nailing, and heel-seat nailing.

It will also be observed that by varying the shape of the head-forming cavity of the dies ahead of almost any desired form may be provided for the nail.

The machine is timed, preferably, to stop with the driver down to relieve the tension of the driving-spring. It is apparent, of course, that the machine can be used in making headed pointed nails alone or without the horn and driving devices, in which case it would simply be a nail-making machine.

It will be observed that the base-line of the forward section of the frame B has only two downward-extending parts, namely, the noz- 216 and the downward-extending narrow section of the feed-lever, and that these parts are removed or separated by quite a space from the column of the machine and that this provides immediately back of the downwardprojecting portion of the feed-lever a sufficient space for a heel or other projection of a boot or shoe. This construction permits the nailing of the sole or soles of the boot or shoe across from side to side as well as around the edge, and also permits the nailing of a tap-sole to an outsole from side to side at the shank. In Fig. 19 we have represented the rotary section of the feed-clutch as connected with a registering device, registering the length of Wire driven or the number of nails driven, by means of an eccentric s, a rocklever 8, connected with a push-bar s of the registering mechanism, and a connected rod 8 and every full revolution of the feed-roll shaft imparts a full reciprocation to the rocklever and actuates or reciprocates the pushbar 3 of the registering mechanism once.

Having thus fully described our invention, we claim and desire to secure by Letters Patent of the United Statesl. In a machine of the character specified the combination of awire-feed, awire-grasping device comprising afiXed jaw and a movable jaw, a slide on which said jaws are mounted, and which has a limited vertical movement, wire grasping and heading dies and a pointforming cutter reciprocated across the feedway between the fixed grasping-jaw and the movable one when removed from the wire, and nail-driving devices as and for the purposes described.

2. The combination in a machine of the character specified of a wire-feed having feeding movements separated by aperiod of rest, the first governing the length of the nail and the second the position of the completed nail in relation to a cutter; wire grasping devices one of which is movable in relation to the other to expose the wire and aiford room for the operation of a cutter; said cutter; a slide upon which said wire-grasping devices are mounted, and which has a vertical movement imparted to it; grasping and heading devices for holding the wire during the movement of the grasping devices toward them; a point-forming cutter and a nail-carrier having a throat to receive the nail and a die or cutter to act in connection with the lower surface of the head forming and grasping dies to sever the headed nail from the wire, and nail-driving devices as and for the purposes described.

3. In a machine of the character specified, the combination of wire-grasping jaws, one of which is movable in relation to the other, to provide room for the action of a pointforming cutter, a reciprocating point-forming cutter to traverse the opening thus provided and shear from the side of the exposed wire, a section; a cutter to sever the nail and nail carrying and driving devices, substantially as described.

4. In a machine of the character specified the combination of a wire-feed having two movements imparted to it for every nail made and severed; a pair of wire grasping and heading jaws, and a pair of wire-grasping jaws, both adapted to grasp the wire after the first operation of the nail-feed and to upset the section of wire between them by the movement of one in relation to the other to form a head, and the upper set of which jaws is then opened by the removal of one to form a space exposing the side of the wire; a cutter actuated across this space to sever from the wire confined in the other jaw and by the heading jaws a section; means for opening the heading-jaws immediately before the second operation of the feed; a nail-carrier for severing the nail from the wire end and advancing it to the nail-driver and nail-driving devices, substantially as described.

5. The combination in a machine of the character specified of a wire-feed having two feed movements; a pair of wire-grasping jaws and apair of wire-heading jaws having the movements specified; a reciprocating cutter, the jaws and cutter being adapted to form a headed pointed fastening of the character specified; a nail-carrier and a nail-driver; a horn for presenting and holding the work to the nail-driver and a Work-feed substantially as set forth as and for the purposes described.

6. The combination in a machine of the character specified of the support e, the fixed wire-grasping jaw c, the movable wire-grasping jaw 6 the actuating-toggles c c, the adjustable toggle-block a a cutter to sever the nail and suitable nail carrying and driving devices substantially as described.

'7. The combination in a machine of the character specified of the movable support or slide 6, the fixed wire-grasping jaw e, the movable wire-grasping jaw e and means for actuating it mounted upon said slide, the wire grasping and heading jaws, a cutter to sever the nail, and suitable nail carrying and driving devices, substantially as specified.

8. The combination in a machine of the character specified of the slide or movable support 6, the fixed jaw e, the movable jaw 6 both mount-ed upon the slide, means for reciprocating the slide, comprising the toggle e cam 6 and suitable connections, the grasping and heading jaws, a severin g-cutter and nail carrying and driving devices substantially as specified.

9. The combination in a machine of the character specified, of the slide or movable support 6, the wire-grasping jaws carried thereby, means for reciprocating said slide, and for adjusting its movements, wire grasping and heading devices, a severing-cutter and suitable nail carrying and driving devices substantially as specified.

10. The combination in a machine of the character specified of the wire-feed roll d the tension-roll 01 a cam 61 timed as specifled to impart two feed movements to the feed-roll, and connecting devices of the character described, and nail making transferring and driving devices and nail-severing devices all as and for the purposes set forth.

11. In a machine of the character specified the nail-carrier G, having the throat g and a section g adapted to be temporarily opened or enlarged by the movement of said section as and for the purposes described.

12. In a machine of the character specified the nail-carrier G having the throat g and the hinged section 9 as and for the purposes described.

13. The combination in a machine of the character specified of the nail-carrier G, having a throat g and the hinged section 9 forming one wall to the throat, a stop 9 for holding it closed when the throat is in register with the driver and a spring for closing the hinged section and after its removal from the driver, as and for the purposes described.

1a. The combination in a machine of the character specified of the nail-carrier G, having the throat g and long slot g, with the bar-stop g and hinged throat-section g as and for the purposes described.

15. The combination in a machine of the character specified of the nail-carrier G, having backward-extending lugs or projections to form a slideway, a slide mounted therein, a lever to engage said slide actuated by a rock-shaft and its actuating-cam g as and for the purposes described.

16. The combination in a machine of the character specified of the work-feed mounted upon a lever, a rock-shaft actuated by a cam and intermediate adjustable connections for varying the throw of the work-feed, comprising the levers m m and the adjustable connecting slide and pin, as and for the purposes described.

17. The combination in a machine of the character specified of the exposed nozzle, located at some distance from the post and considerably below the base-line of the front section of the frame, with the feed-lever having a narrow downwardly-extending section and the work-feed carried thereby, whereby the nozzle and work-feed form isolated downward extensions removed from any other downward extensions which may interfere with the presentation in all directions of the work, as and for the purposes described.

18. The combination in a machine of the character specified of the horn-actuated stop (Z and the feed-slide d and mechanism for adjusting the end thereof, as and for the purposes described.

19. The combination in a machine of the character specified of the wire-feed devices, the feed-clutch, the cam-slide connected with the clutch, and the cam d shaped to provide the cam-slide with two feeding movements, one of which is fixed and the other variable, and suitable nail making, transferring and driving devices, as and for the purposes described.

20. The combination in a machine of the character specified of the wire-feeding devices, the cam-slide connected therewith to actuate them, having a cam-pin held in contact with its actuating-cam or slide-stop, by a spring (1, said stop adapted to be adjusted, and said cam having two feed-sections, and suitable nail making, transferring and driving devices as and for the purposes described.

21. The combination in a machine of the character specified of the horn a, spindle a and the lever pivoted to a movable togglehead I, and means for actuating the toggle, as and for the purposes described.

22. The combination in a machine of the character specified of the horn a, the hornspindle, the toggle P, the upper end of which is connected with the horn-spindle and the toggle-straightener link p and treadle p and the toggle-breaking link 19* and treadle p substantially as described.

23. The combination in a machine of the character specified of the horn a, the hornspindle a, the lever a pivoted to the togglehead, the toggle-head having a slide-steadying section 19 arranged to slide in a hole in the frame of the machine, the toggle-link p and its stop, the toggle-link p and its stop and the actuating-treadles and connections, as and for the purposes described.

24. The combination in a machine of the character specified of the main shaft, the wire-grippin g j aws,the wire heading and gripping jaws, the point-cutter, the nail-carrier, the work-presenting horn, the work-feed, the wire-feed, and the driver-bar with cams, constructed substantially as specified, mounted upon said shaft, and connected respectively with the said instrumentalities, substantially as described, and a spring or springs for actuating the driver-bar, all combined and arranged to operate as and for the purposes described.

25. In a machine of the character specified, the combination of a bracket or support cl, provided with a wide recess at its base, a pivot or shaft extending across said recess, the drivin g-arm 71 extending from the center of said shaft, the coiled spring h", surrounding said shaft upon one side of the driving-arm, one end of which is attached to the adjusting device h and the other of which bears upon the driving-arm, a second coiled spring h upon the other side of said driving-arm surrounding said shaft, one end of which is con-. nected with a second adjusting device h and the other of which bears upon the drivingarm, and the said adjusting devices 72 as and for the purposes described.

26. In a machine of the character specified, in combination with a driving-arm adapted to be moved upward by a cam and released, two coil-springs, oppositely coiled and arranged in relation to each other, one upon each side of the driving-arm, said springs having extensions to bear upon the drivingarm, and independent means for adjusting independently, the tension of each spring, as and for the purpose described.

HORACE WEEKS. JAMES E. TUTTLE.

In presence of- F. F. RAYMOND, 2d, J. M. DOLAN.