US599627A - Nailing-machine for boots or shoes - Google Patents

Description

(No Model.) I 3 Sheets-Sheet 1.

v A. NEWTON. NAILING MACHINE FOR BOOTS 0R SHOES.

No. 599,627. PatentedFeb. 22,1898,

11125525 I 7/ I. I E/35in? (No Model.) 3 Sheets-Sheet 2.

A. NEWTON. r NAILING MACHINE FOR BOOTS SHOES;

Patented Feb. 22, 1898 a 5 1& B J 7. a .m 5 F E7 m F2 w w 8 MM 1% W g A m m m 8 WW Q w H m\ M 0 V z 7 2 LI 4 H 2 mm. m 8 w T m I; 9.

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(No Model.) 3 Sheets-Sheet 3.

A. NEWTON. NAILING MACHINE FOR BOOTS 0R SHOES. I o. 599,627. Patented Feb. 22, I898.

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ARTI IUR NEWTON, "OF BOSTON, MASSACHUSETTS.

NAlLlNG-MACHINE FOR BOOTS OR SHOES.

SPECIFICATION forming part of Letters Patent No. 599,627, dated February 22, 1898. Application filed April 18, 1896. Serial No. 588,079. (No model.)

To all whom it may concern:

Be it known that LARTHUR Nnwromof Boston, in the county of Suifolk and State of Massachusetts, have invented certain new and useful Improvements in Nailing-Machin es for Boots or Shoes, of which the following, taken in connection with the accompanying drawings, is a specification.

This invention relates to improvements in nailing-machines, and more especially in machines for nailing or slugging the heels of boots or shoes, and it relates particularly to mechanism for supplying nails or slugs to the nail-tube under the driver, in which a metal strip or tape is' fed to the machine and nails or slugs are cut from said strip and driven, one after the other, leaving the remainder of the strip in the form .of a comb-shaped nail or slug strip, which may afterward be run through the same machine with a slight adjustment of parts, so that nails or slugs can be cut from said comb-shaped strip and driven into the boot or shoe, thereby using up the entire strip without waste in one and the same machine. It will therefore be seen that my invention is included within the nail-supplymechanism of the machine and is in no way dependent on the particular construction of the other parts of the nailing-machine,excepting to derive its motive power for operation from the driving-shaft.

The invention consists of the construction, arrangement, operation, and combinations of parts, substantially as hereinafter fully de scribed and claimed; and the invention is carried out substantially as illustrated on the accompanying drawings,which form an essential part of this specification, and whereon- Figure 1 represents a front elevation of the lower portion of the sliding head of the machine, the driver, driver-bar, and my improved mechanism connected thereto. Fig. 2 represents a plan view of my improved device disconnected from the machine, having a portion broken away so as. to show the manner of feeding the plain metal strip, also the reel upon which the comb-shaped strip is reeled as it leaves the machine.

Fig. 3 represents a side elevation of the parts of the machine shown in Fig. 1 as seen from the left of Fig. 1. Fig. 4: represents a horizontal section on the line A Bin Figs. 1 and 3, showing the machine arranged to punch nails or slugs from a plain strip and thereby forming a combshaped nail or slug strip. Fig. 5 represents a partial vertical section on the line 0 D in Fig. 3, showing the manner of punching nails or slugs, one after another, from a plain metal strip or tape and forming a comb-shaped strip' as the product of such an operation. Fig. 6 represents a vertical section on the line E F in Fig. 4. Fig. 7 represents a vertical section on the line G H in Fig. 4. Fig. 8 represents a similar view to that shown in Fig. at of the machine arranged to feed the comb-shaped nail or slug strip and to sever a nail or slug from said'strip at each operation of the machine. Fig. 9 represents a vertical section on the line I J in Fig. 8. Fig. 10 represents a vertical section on the line K L in Fig. 8. Fig. 11 represents a partial vertical section on the line M N in Fig. 8, showing the manner of detaching nails or slugs one after the other from the comb-shaped strip. Fig. 12 represents a face view of the female die used in the machine when punching the nails from the plain strip, leaving the continuous combshaped strip. Fig. 13 represents a-face view of the female die used in the machine when punching nails from the comb-shaped strip. Thesame characters of reference refer to the same parts wherever they occur on the different parts of the drawings.

The construction of the awl and driver or their operating mechanisms, the manner of feeding the stock into which the nails or slugs are to be driven, or the construction of horn or other stock support used on the machine are immaterial to and form no essential part of my invention and can be varied by the use of any of the common and well-known constructions of such parts without departing from my invention, as my improved mechanism can be constructed and arranged so as to be applied to many of the difierent machines now in use, if so desired.

On the accompanying drawings the improved mechanism has been illustrated in convenient form to bevattached to the machine for which Letters Patent of the United States No. 25,204 were issued to W. R. Landfear August 23, 1859, and which machines are now in common use as pegging-machines in many of the shoe-factories throughout the country. Only such parts of the said patented machine have been shown on the drawings as are necessary to illustrate the position in which my device is attached to said machine and the operation of cutting nails or slugs from a plain metal strip, using the same entirely without waste.

The head of the machine is provided with the sliding front piece 1, as in the patent to Landfear above referred to, by the sliding movement of which stock is fed, and also with the vert-ically-reciprocating driver-bar 2, having the attached driver 3, as usual. To the front piece 1 is attached the feed-block 4 by means of the bolt 5 or equivalent device.

Vithin a bearingin the block 4 is rotatably mounted the shaft 6 of the feed-wheel 7,which feed-wheel is preferably provided with teeth or projections, as shown. A top plate 8 is secured to the top of the feed-block 4 by means of the screw 9 or other equivalent means, said plate also forming a bearing for the shaft 6 of the feed-roll. The feed-block 4 is provided on its top with the groove 10, which extends from the back toward the front of the machine and is also arranged substantially tangent to the circumference of the feed-roll, and to said block is attached the elliptic spring 11 in such a position that its free end projects into the groove 10 and presses with a yielding pressure against the surface of the feed-wheel 7 or against a metal strip 12, inserted within the groove 10 between said parts. The shaft 6 and its attached feed-wheel 7 are set in an intermitting rotary motion in the direction of the arrow in Fig. 2, preferably by means of the pinion 13,mounted on said shaft, which pinion receives its n10- tion from the drivin g-shaf t of the machine by any suitable intermediate and well-known mechanism, which, however, has not been shown on the drawings. It will be seen that this intermitting rotation of the feed-roll will cause an intermitting forward movement of the strip 12 for a purpose to be understood by a further description of the machine.

Attached to the feed-block 4 is a throatplate 14, which is screwed or otherwise secured to said block and also to its top plate 8. The plate 14 is provided with a vertical groove, forming the throat or nail-tube 15, within which the driver 3 reciprocates and through which the nails are driven into the stock,held in proper position under said tube.

Clamp-blocks 1G and 17 are loosely mounted within the groove 10 and are guided in the feed-block 4 in such a manner that they can move longitudinally toward and from the nail-tube in a line at right angles to the feeding of the strip 12. A lever 18 has its lower end resting against the outer ends of the clamp-blocks, said lever being forked substantially as shown, so as to project downward on either side of the punch 19. The lower end of this lever is moved toward and from the clamp-blocks by any suitable mechanism, but preferably by mechanism connected with the driving-shaft of the machine and consisting of a cam on the driving-shaft, which acts upon a pin and roll 011 the lever tending to intermittingly rock said lever on its fulcrum. The mechanism to operate the lever 18 has not been shown on the drawings, as its construction is well known and can be readily understood without an illustration.

The punch 19 is located between the clampblocks and projects outward through the forked end of the lever 18, as shown. It is moved toward or from the nail-tube 15 by the action of the lever 20, the lower end of which rests within a recess on the top of said punch. This lever 20, the same as the lever 18, is operated by any suitable and well-known mechanism.

To the plate 14 is removably secured the female die 21, as shown in Fig. 12, it being secured to said plate by means of the screws 22 22 or other equivalent device. The cutting portion 23 of the punch 19 and the cuttin g-groove 24 of the die 21 are of a shape corresponding to the side elevation of the nail or slug to be punched from the metal strip 12. The amount of longitudinal reciprocation given to the punch is such that when in its inner position the cutting portion 23 of the punch will just reach through the groove 24 in the die and be on a line with the side of the nail-tube 15; but when said punch is in its outer position the cutting portion of the punch will have withdrawn clear of the metal strip and substantially in the position shown on the drawings. It will therefore be seen that the punch not only punches the nail from the metal strip but also conveys it through the groove in the female die and into the nailtube 15.

The metal strip is fed in the groove 10 across the surface of the die 2]. and rests upon said surface, and it will be seen that if the punch 19 is moved inward by the action of the lever 20 after a portion of the metal strip has been fed to a position in front of the groove 24 in the die said punch will punch a nail or slug from said strip, will force the nail or slug so punched through the groove in the female die into the nail-tube 15 and allowit to drop through the nail-tube into the hole or recess made in the stock by the awl ready to be driven into the stock by the next descent of the driver.

At each operation of the feed-wheel 7 the metal strip 12 is fed a distance equal to the greatest width of the nail which is to be punched from said strip. The top edge of the metal strip 12 is preferably on a level with or a little below the top surface of the punch 19; also, the width of the shank portion of the nail is preferably equal to the combined projections of the head portion on either side of the shank portion, and as the metal strip is equal in width to the length of the nail to be punched therefrom, plus the length of the head portion of the nail, it will be seen that the remaining portion of the width of the shank of the nails used, and the space between these shank-forming portions being equal in dimensions to the shank-form- I ing portions themselves.

The amount of metal strip fed by the intermitting rotation of the feed-r0117 might vary slightly on account of the feed-roll slipping on the surface of the strip, and in orderto rectify any variation in the feed I provide the punch 19. on the side nearest the front of the machine with the blade 25, which blade is placed,preferably, within a side groove on said punch and is secured within said groove by means of the screw 26. The forward end of this blade projects a short distance beyond the cutting-surface of the punch and is tapered or pointed on its end, as shown. The operation of this blade is such that when the punch is moved inward to punch a nail from the strip the projecting tapered end of the blade will enter the space in the comb-shaped nail-strip made by the removal of the nail or slug and properly adjust said strip before the I punch reaches it. As the thickness of this blade is equal to the width 'of the spaces between .two adjacent shank-forming portions on the comb-shaped strip, also as the blade is held firmly in the properrelative position to the cutting end of the punch and, further, as the blade is wedge-shaped or tapered at its end it will be seen that the metal stripwill be moved to its proper position if wrongly fed and held in proper position while the nail is being punched. The blade 25, after passing through the metal strip, enters the perforation 27 in the femaledie and the throatplate. The comb-shaped strip after it leaves the feed-block 4 is reeled upon a suitable reel 28 (shown in Fig. 2) either by hand or automatically by the operation of the machine.

During all of the operations of the machine excepting the time that the metal strip is being fed by the feed-roll and said feed is being rectified by the projecting end of the blade the metal strip may be clamped and held firmly between the surface of the female die and the clamp- blocks 16 and 17 by the action of the lever 18, but especially is this desirable during the punching of the nail and the withdrawal of the punch from the metal strip. I

In order to adapt the machine to use the comb-shaped strip formed by the operation as above described, I provide the machine with the following devices and arrange them substantially as shown in Figs. 8, 9, 10, 11,and 13. It will be understood that the comb-shaped strip is the length of the head portion of the nail narrower than is the plain metal strip, and in order to compensate for this difference in the width of the two strips, so as to bring the comb-shaped strip in proper position for the punch and the female die and also in position to have each projection on the feed-roll enter the space between two shank-forming portions of the strip, Iplace the strip 29 preferably within the lower part of the groove 10 and the guideway for the punch 19, which strip is adjustable into and out of a position under the nail-strip, being fed and firmly held in its adjustable position by means of the screws 30 30, which pass through slots in the strip 29, as shown. This strip is equal in thickness to the length of the head of the nail and therefore raises the comb-shaped strip into proper position.

In order to rectify the feeding of the combshaped strip, I provide the punch 19 with a second blade 31, placed within a groove on the opposite side of the punch to where the blade 25 is placed, and this second blade is attached to the punch by means of the screw 32 in a manner similar'to the manner of attaching the blade 25. The action of this blade 31 is the same as the action of the blade 25.

When using the comb-shaped strip in the machine, I prefer to remove the throat-plate 14, with its attached female die 23, as above described, from its position on the feed-block and substitute in lieu of such a throat-plate the throat-plate 33, provided with the nail tube or throat 34:, also with the attached female die 35, preferably of peculiar construction, as hereinafter described, and also havin g a second perforation 36 through the female die and throat-plate similar to the perforation 27, but on the opposite side of the cutting-groove in the female die and in line with the movements of the blade 31. The second perforation 36 is for the purpose of receiving the blade 31 after it has been inserted through the space between two projecting shank-formin g portions on the nail or slug strip and has rectified the feeding of the strip.

As the shank portions of the nails or slugs to be cut from the comb-shaped strip are formed complete while said strip is being formed by the punching of nails or slugs from a plain metal strip, and consequently do not need to be formed by the die when nails or slugs are being driven from the comb-shaped strip, and as it is only necessary to separate the head-forming portion of one nail from the head portion of the next nail, I make the cutting-groove 37 in the female die in the form of a plain groove, as shown in Fig. 13. Thus it will be seen that if the positions of the shank portions of the strip vary slightly they will pass freely through the groove 3'7 into the nail-tube 34 without liability of breaking or clogging the dies by pieces cut from the shank portions or without reducing the size of the shank portions of the nails cut from said strip.

It will be readily understood by any one skilled in the art to which this invention relates that the strip 29 might be attached to the top plate 8 above the nail-strip in the place of being attached to the block 4 below said nail-strip; but in such aconstruction the projections on the feed-roll 7 would be lower than shown on the drawings in order to enter the spaces in the comb-shaped strip.

It is not necessary that the nails or slugs punched from the plain metal strip at the time of forming the comb-shaped strip should correspond in shape to the nails or slugs cut from the comb-shaped strip, as they may vary both in size and shape, if so desired. It is also unnecessary to have the shape of the nail punched from the metal strip as shown in the drawings, as it may be varied to any desired shape. Neither is it necessary that the mech anism to carry out my invention should be arranged as shown on the drawings, as the same can be changed within the scope of mechanical skill to adapt my nail-supply mechanism to the different kinds of nailing-machines on which it is to be used without departing from the spirit of my invention.

I do not wish to confine myself to the precise construction of the device shown, whereby plain metal strips or comb-shaped strips are fed to the action of the punch, or to the particular device shown for driving the nails, as various devices now in common use for this purpose might be substituted for that shown, if so desired.

Having thus fully described the nature,construction, and operation of my invention, I wish to secure by Letters Patent and claim- 1. In a nailing-machine, the combination with the nail-driving mechanism, of a nailsupplying mechanism consisting of a feeding device for a plain metal strip, a punch and die to punch nails from said strip, leaving a continuous comb-shaped nail-strip as the remainder from the operation of the punch upon the plain metal strip, and a blade preceding the punch to enter the comb-shaped strip to rectify the feeding of the metal strip, for the purpose set forth.

2. In a nailing-machine, the combination with the nail-driving mechanism, of a nailsupplying mechanism consisting of a feeding device for a comb-shaped naiLstrip, a punch and die to punch one nail after the other from said strip and deliver it to the driver, and a blade attached to and moving with said punch in advance thereof to enter the comb-shaped nail-strip in order to rectify the feeding of the strip by the feeding device, for the purpose set forth.

3. In a nailing-machine, the combination with the nail-driving mechanism, of a nailsupplying mechanism consisting of a feeding device for both a plain metal strip or a combshaped nail-strip, a punch and die to punch nail after nail from a plain strip fed thereto and to deliver such nails to the operation of the driver, leaving a comb-shaped nail-strip as the remainder of the operation of the punch upon the plain strip, a strip movable into the path of the movement of the nail-forming strip from the feeding device to the punches to fill the space and compensate for the difference in the widths of the plain and combshaped strip whereby said comb-shaped strip can be fed by the feeding device and nail after nail removed therefrom by the punch and die and be delivered to the driver, and the entire plain metal strip made into nails without waste for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARTHUR NEWTON.

Witnesses:

HENRY CHADBOURN, VICTOR SANDAHL.

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