US942591A - Machine for nailing shoes. - Google Patents

Description

V. SANDAHL.

MACHINE FOR NAILING SHOES. APPLICATION FILED D220. 9, 1907.

Patented Dec. 7, 1909.

4 SHEETS-SHEET 1.

V. SANDAHL.

MACHINE FOR NAILING SHOES.

APPLIUATIOK FILED DBO. 9, 1907.

Patented Dec. 7,1909.

4 SHEETS-SHEET 2.

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MACHINE FOR NAILING SHOES.

APPLICATION FILED DEG. 9. 1907.

Patented Dec. 7, 1909.

4 SHEETS-SHEET 3.

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V. SANDAHL.

MACHINE FOR NAILING SHOES.

APPLICATION FILED DEC. 9, 1907.

Patented Dec. 7, 1909.

4 SHEETS-SHEET 4.

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VICTOR SANDAHL, O1! NEVV YORK, N. Y., ASSIGNOR TO L. WHEELER BEECHEE, F lilEW HAVEN, CONNECTICUT.

Application filed December 9, 1907.

To all whom it may concern:

Be it known that I, VICTOR SANDAHL, a citizen of the United States, residing at New York, borough of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Machines for Nailing Shoes; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification. and represent, in

Figure 1 a front view of my improved machine with a portion of the hopper broken away. Fig. 2 a side view of the same. Fig. 3 a top or plan view of the machine with the hopper partly broken away. Fig. a a section on the line a-b of Fig. 1. F a sectional view on line 0 (Z of Fig. 3. Fig. 6 a sectional view on line ef of Fig. 1, on an enlarged scale. Fig. 7 a sectional view on line /L of Fig. 6.

This invention relates to an improvement in machines for nailing shoes, and particularly for nailing the counters or heel portions of the uppers to the heel portions of the soles.

In the usual construction of shoes the edges of the counters are nailed to the heel portion of the shoes before the heel proper is attached; and the object of this invention is to provide a machine simple in operation which will punch the hole, feed the nails and set them; and the invention consists in the details of construction and arrangement of parts as will be hereinafter described and particularly recited in the claim. v

The invention will best be understood by describing the machine in connection with the operation of the several parts.

The means for supporting the shoe to be nailed are not shown as those are of usual construction and illustration seems unnecessary, but they are arranged beneath the bed or plate 2. Above the plate is an awl 3 car ried at the end of a link 4 which is secured to a cam plate 5 pivoted as at 6 and secured by a screw 7 to an arm 8 extending clownward from an eccentric plate 9 mounted upon the driving shaft 10, the arm 8 also carrying a lug 11 which bears upon the upper edge of the cam plate 5 so as to take Specification of Letters Patent.

Patented Dec. 7, 1209.

Serial No. 405,649.

the strain from the screw 7 in the downward movement of the link t. In the clownward movement of the link 4: the heel is punched, and when it reaches the limit of its downward movement, it is advanced through the means of a link 12 connected to the lower end of a rocker 13 which is pivoted as at 1 1 and has an upwardly extending arm 15 carrying a roller 16 hearing against the edge of a cam 17 also mounted on the shaft 10. Thus the shoes, having been punched is advanced by the punch into the path of the nailing mechanism. Nails are delivered from a chute 18 against a stop 19 which is forced outward by a spring 20. This stop is L-shaped to extend across the mouth of the chute. Beneath this stop is a feed slide 21 having a vertical groove 22 which, in its retired position stands in line with a row of nails 23 in the chute 18.

At a predetermined time a cut off 24 which is arranged parallel with and adjacent to the feed slide 21 is advanced by a bell-crank lever 25 which is turned by an arm 26 secured at 27 to an operating arm 28 carrying a roller 29 which bears against the edge of a cam 30 also mounted on the shaft 10. The arm 28 is pivoted at 76 to the frame of the machine in position to give the desired movement to the lever. The movement of the bell-crank lever 25 positively moves the cut-off 2% in the forward movement, and its return movement is through a spring 31 which is connected with the bell crank and with the cut-off slide. The end of the bell crank lever is also connected by a spring 32 with a bracket 33 carried by the arm 26 so as to retire the bell. crank lever. The movement of the bell crank lever may be adjusted by a set screw 75 carried by an arm 26 whereby the movement of the cutting off slide may be adjusted.

The cut-off slide 24 comprises fingers 3a, 35 and 36 of different lengths which slide in corresponding grooves 37, 38 and 39 in the front face of the plate 2 and as it advances it forces the first nail in the shoe into the notch 22 of the feed slide and against the stop 19, the cut-off holding the remaining column of nails back. The fingers of different lengths insuring the proper feeding of the nails, the spaces between the grooves preventing the sidewise movement of the nails as usual in machines of this class. The feed slide 21 is connected at its rear end to a lever 40 pivoted at 41 and carrying a roller 42 at its upper end which is moved by the cam face 43 of the cam 17, the feed slide being returned or drawn rearward by a spring 44 which is connected with the feed slide and with the lever 40. The

' advance movement of the feed slide 21 carries the nail in the notch 22 forward to a point over the heel and in line with the hole made by the punch 3 which, it will be understood, has been lifted out of the hole and retired before this step takes place. lVhen the nail is thus in line with the hole prepared for it, a nail driver 45 mounted in the end of the punch 46 is forced downward by means of a punch arm 47 connected with the eccentric 9. The driver descending forces the nail in the feed slide into the stock and with suflicient power to upset the point or inner end of the nail against the anvil on which the shoe rests. The feed slide then returns for the next nail, and while it is retiring and advancing with the next nail the punching operation for the next nail takes place.

In order to maintain a supply of nails in the chute 18 the chute enters a hopper 48 in which is mounted a plate 49 having a-ibs 50 which at their inner ends diverge toward the groove 51 in the chute, the groove receiving the body of the nail which is suspended by its head. The hopper is mounted upon a shaft 52 which is turned by a gear meshing with a gear 54 which is turned by a large belt wheel driven by a belt 56 running over a pulley 57 on the driving shaft 10. It may here be stated that this driving shaft is run by the usual belt pulley 58.

In order to make sure that the nails feed into the chute, I arrange upon the upper edge of the chute a jarring slide 59 which is guided. by the hopper and is also connected to the stationary part thereof by a strong spiral spring 60, the upper end of the jarrer striking a stop 61. Secured to the jarrer and projecting from one side thereof is a pin 62 flattened on its upper side and bearing upon this pin and adapted to be engaged therewith, is a hook 63 formed at the end of a lever 64 which is pivoted to the downwardly projecting arm 65 of the operating arm 28. The lever 64 has a downwardly projecting cam lug 66 which engages with the upper end of an adjustable screw 67 against which it is held by a spiral spring 68. By the movement of the arm 65 the lever 64 is drawn downward and as it moves downward the hook 63 engaging with the pin 62 draws the jarrer 59 downward, and as the lever 64 moves downward the lug 66 bearing on the screw 67 lifts the hook 63 out of engagement with the pin 62, thus releasing the jarrer which is snapped back, so to speak, by the spring 60, and striking the stop 61 jars the hopper so as to jolt the nails into the slot 51 of the chute. In order to hold the cam arm 28 against its cam the upper end is connected with a rod 69 which carries a spring 70 acting against the movement of the cam arm. It may also be mentioned that the end of the roller 16 is held against its cam 17 by means of a spring actuated rod 71. The arm 65 has a lug 72 against which the arm 26 is normally held by a spring 73, one end of the spring being connected to a bar 74 on the arm 26, and the other end to the lug 72, whereby the forward movement of the cut off slide may be arrested without interfering with the movement of the machine, as for instance, if an imperfect nail should stop the slide.

It will thus be seen that with my improved device the stock is punched and fed, the nails advanced into position over the punched stock, and then driven home and the feeding of the nails is done in such a way that jamming is practically impossible. The parts, although connected together to operate simultaneously and practically posi tively, are, through the medium of the springs, so yielding that should a nail be imperfectly fed or the other parts ammed the machine will not come to a sudden stop and danger of breakage of parts is avoided.

In a machine for nailing shoes, the combination with a hopper and a chute, of a j arrer arranged upon said chute and extending into said hopper, means for moving the jarrer longitudinally, a pin mounted in said jarrer, a hook lever adapted to engage with said pin, a cam lug on said lever whereby in the downward movement of the lever it is elevated out of engagement with said pin, substantially as described.

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

VICTOR SANDAHL. l/Vitnesses ROMOLA GORDON, CHAS. HERMANN.

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