US1185491A - Sole-feeding device for shoe-nailing machines. - Google Patents

Description

M. S. FINCH.

SOLE FEEDING DEVICE FOR SHOE NAILING MACHINES.

APPLICATION FILED APR. 5. 1915.

1,185,491. Patented May 30,1916.

2 SHEETS-SHEET lnnmllllllll If.

M. S. FINCH.

SOLE FEEDING DEVICE FOR SHOE NAILING MACHINES.

APPLICATION FILED APR. 5, I915.

1 ,1 85,49 1 Patented May 30, 1916.

2 SHEETS-SHEETZ- MAURICE S. FINCI-I, OF ST. JOSEPH, MISSOURI, ASSIGNOR T0 SPECIALTY IVIACHIN- ERY COMPANY, or s'r. JOSEPH,

MISSOURI, A CORPORATION OF MISSOURI.

Specification of Letters Patent.

Patented May so, rare.

Application filed April 5, 1915. SerialNo. 19,194.

To all whom it may concern:

Be it known that I, MAURICE S. FINoH, a citizen of the United States, residing at St. Joseph, in the county of Buchanan and State of Missouri, have invented certain new and useful Improvements in Sole-Feeding Devices for Shoe-Nailing Machines, of which the following is a specification.

My invention relates to shoe nailing maehinery and more particularly to a mechanism for feeding the soles under the nailing plunger.

The particular object of my invention is to provide a shoe nailing machine with suitable mechanism that will feed the sole intermittently in uniform steps to the nailing plunger so that the nails may be inserted or driven into the sole equal distances apart.

Another object of my, invention is the provision of a sole feeding device that is accurate and eflicient in its operation, is somewhat flexible in its engagement with the edge of the sole, and which is capable of various degrees of adjustment.

These objects I prefer to accomplish by the means and in the manner hereinafter fully described and as more particularly pointed out in the claims, reference being had to the accompanying drawings forming a part hereof wherein similar reference characters indicate the same parts in the various figures.

In the drawings: Figure 1 is a vertical side elevation of a well-known type of shoe nailing machine showing my sole feeding device applied thereto; Fig. 2 is a vertical side elevation of my sole feeding device detached from the nailing machine and drawn to an enlarged scale; Fig. 3 is a transverse vertical section thereof taken on line 33 Fig. 2; Fig. 4 is a fragmentary detail (drawn in top plan) of the feeding jaws and having the top friction'plate removed to better illustrate the arrangement of the elements; Fig. 5 is a transverse vertical section of my invention taken on line 5-5 Fig. 2.

Referring to the drawings, A represents a suitable standard, B an anvil, C a nail feed 7 and plunger, and D a supporting arm or frame in which the latter is mounted and which carries the usual nail hoppers E. These elements are of a well-known type of shoe nailing machinery and in so far as my device is concerned maybe any of the combefore mentioned, and

mercial machines now on the market. For the purpose of convenience I have illustrated a Crowc automatic shoe nailing machine disclosed in Patents No. 74:2,396, dated October 27,1903, No. 994,408, dated June 6, 1911, and No. 994,981, dated June 13, 1911. In this machine a suitable vertically disposed longitudinally reciprocable operating shaft F is journaled in suitable bearings and is operable either by means of a foot'treadle G or by a motor mechanism II. The upper end operating shaft F extends through bearings in the overhanging member of the arm D and between said overhanging member and the base of said arm it has a bracket I secured thereto which latter is adapted to actuate the nail feed and driving plunger C adjacent its lower edge 1s provided with an anti-friction roller J (shown in Fig. 8) for operating the sole feding mechanism now to be described.

Secured in any suitable manner to the upright of arm D, preferably by a pivotal pin 6 passing through lateral-flanges is a swinging frame 7 the outer end of which is hori- Zontallv split or bifurcated as shown at 8. A clamping bolt 9 is tapped transversely through the bifurcations, and in order to lock the frame to arm D'the frame is provided with a cam spindle 10 which when rotated by its handle 11 interlocks with both the frame and the adjacent portion of the arm D. The outer portion of the inner face of the swinging frame is provided with a longitudinally disposed under-cut groove 12 that is of a width suflicient to extend upon both sides of the bifurcation and which affords a guideway for a substantially L- shaped sliding carrier 13 in the shorter lateral member of which the sole-feedin g members are mounted. Said carrier has one side of its longer member provided with a dovetail tenon that cooperates with and slides in said groove 12 andat its inner end is provided, with a lateral pin 14 that projects through a horizontally disposed longitudinal slot 15 in the swinging frame. A suitable operating lever 16 is pivoted adjacent its lower end upon the frame 7 and is provided mediate its ends with a vertically disposed longitudinal slot 17 that is engaged by said pin 14: so that the movement of sald lever in tion for the purpose of regulating the marginal space between the edge of the shoesole and the row of nails.

Depending from the underside of the carrier adjacent its outer end are two lateral bearing bosses l8 and 19 that provide journals for a short horizontally disposed rockshaft 20 that extends beyond said bearings at each end and between said bearings it has a collar 21 rigidly secured thereto. This collar is provided with a downwardly proje'cting lateral extension 22 to which one end of a coiled contraction spring 23 is secured, the opposite end of said spring being connected to a lug 2a upon the outer end of the shorter-arm of the carrier, thus keeping the lug and collar and its shaft normally at the limit of its movement in one direction. Mounted rigidly upon the inner extended end of rock-shaft 20 is another collar 25 provided with a downwardly projecting L-shaped extension 26 that has its shorter lateral member bifurcated which latter is tapped transversely by a lock bolt 27. pawl member 28 is loosely carried by said rock-shaft 20 between bearing 19 and the collar 25 and is adjustably supported upon the upper end of a thumbscrew 29 extending through the lateral member 26 of the adjacent collar. Pawl 28 is so positioned that it lies in the path of roller J upon the bracket 1 above described so that when said bracket moves downwardly a suitable distance the roller will engage the pawl depressing the latter and rocking shaft 20. By adjusting the thumb screw 29 up or down the relative throw of the pawl and the consequent rocking of shaft 20 isregulated to a nicety.

The end of shaft 20 extended beyond bearing 18 is provided with a segmental or mutilated pinion 30 that is keyed thereto and limited in its rotation by means of a lateral pin 31 projecting outwardly from the adjacent portion of the carrier. An idle pinion 32 meshes with the aforesaid pinion and has its upper segment extended through an opening in a shelf 33 where it engages with a short rack-bar 34L slidably mounted on said shelf and adapted to be reciprocated by said pinion 32. Pivoted at one end to the adjacent end of rack bar 34 and carried thereby is an irregular shaped link 35 a portion of the outer end of which is provided with serrations or lateral teeth 36 and which about midway its length has a semi-circular recess 37 cut therein, while a rounded lateral stop lug 38 is formed integral therewith adjacent and at one side of said recess. A small bell-crank 39 is pivotally mounted on a pin 39 on the rack bar 3% in such position that its'shorter rounded member 40 fits into the recess 37 as shown in Fig. 4c of the drawings. The movement of the longer member of hell crank 39 will by the engagement of the shorter arm with link 35 causethe outer the spring 23 and the rack toothed end of the latter to move outwardly or inwardly as the case may be and this movement is so timed with relation to the movement of the rack bar that when said rack moves in the direction of the arrow the teeth will be inside the cover plate L1 as shown in full lines in Fig. 4:, and when moved in an opposite direction said teeth will be outside said cover plate as shown in dotted lines in said figure. The upper surface of the larger arm of bell crank 39 is preferably provided with a friction disk 42 of fiber or the like that bears against the underside of plate 41 and when in operation said bell-crank will be given a retarded sliding motion sufiicient to permit the same to force the toothed end of link 35 out of or under the cover plate as will be understood. The cover plate is held in place by suitable screws L3 that have springs 44 interposed between their heads and said plate and the tightening or loosening of which will increase or reduce the friction between said plate and friction disk.

In operation when the shoe has been properly placed upon the anvil and the nailing margin determined by adjusting the lever 16, the foot treadle G is depressed (or the motor started, as the case may be) which pulls down plunger F and bracket 1, causing roller J to engage pawl 28 and rock the shaft 20 its full movement. The rocking of shaft 20 operates segmental gear 30 which transmits its motion to rack at through pinion 32 and saidrack will be moved in the direction indicated by the arrows in Figs. at and 5 of the drawings. This movement of the rack will cause a drag upon the friction disk a2 on the outer end of the bell-crank and a consequent movement of the link 35 to the position shown in Fig. 4: in full lines. When pressure is relieved upon the foottreadle and the plunger permitted to raise,

rock-shaft 20 will be rotated in an opposite to the exertion of will be moved to its normal or restposition. During this latter movement thedrag being again exerted upon the friction disk 42 in the opposite direction the teeth on the end of link 35 will be moved out from under the cover plate 41 (as shown in dotted lines in Fig. 4:) thus causing said teeth to engage the edge of the sole and move it alongone step so as to receive the next succeeding nail. It will be observed that the movement of the sole does not take place until after the nail has been driven into the same, said movement being purposely retarded in order to permit the driving plunger to commence itswithdrawal or reverse direction owing before the teeth engage the edge of the sole.

From the above it will be obvious to others skilled in the art to which my invention pertains that numerous modifications and refinements of the mechanism described are possible without materially altering the same, and I therefore desire it understood that all such changes and alterations are ineluded Within the scope of my invention as set forth in the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is p 1. A sole feeding device for shoe nailing machines comprising means for engaging and moving the sole, a reciprocable device upon which said means is pivotally mounted, and a device carried by said reciprocable device for moving said means into and out of engagement with the sole.

2. A sole feeding device for shoe nailing machines comprising means for engaging and moving the sole, a reciprocable device upon which said means is pivotally mounted, and a pivoted device carried by said reciprocable device for moving said means into and out of engagement with the sole.

3. A sole feeding device for shoe nailing machines comprising means for engaging and moving the sole, a reciprocable device upon which said means is pivotally mounted, a bell crank pivoted on said reciprocable device one arm of which engages and operates said means, and means for rocking said bell-crank.

4.. A sole feeding device for shoe nailing machines comprising means for engaging and moving the sole, a reciprocable rack upon which saidmeans is carried, means for reciprocating said rack, abell-crank pivoted on said rack adjacent said first-mentioned means one arm of which engages and operates the same, and means for rocking said bell-crank.

5. A sole feeding device for shoe nailing machines comprising means for engaging and moving the sole, a reciprocable rack upon which said means is pivotally mounted, a bell-crank pivoted, on said rack one arm of which engages and operates said means, a plate adjacent said bell-crank, and

Copies of this patent may be obtained for five cents each, by addressing the a friction disk interposed between said bellcrank and said plate.

6. A sole feeding device for shoe nailing machines comprising a member provided with teeth on its outer end for engaging and moving the sole, a reciprocable rack upon which said member is pivotally mounted, a bell-crank pivoted on said rack one arm of which engages and operates said member, a plate adjacent said bell-crank, and a friction disk interposed between said bell-crank and said plate.

7 A sole feeding device for shoe nailing machines comprising a frame, a carrier slidably mounted thereon, means for moving said carrier, a reciprocable rack slidably mounted upon said carrier, a shoe engaging and moving member pivoted to said rack, and means for actuating said member.

8. A sole feeding device for shoe nailing machines comprising a frame, a carrier slidably mounted thereon, means for moving said carrier, a reciprocable rack slidably mounted upon said carrier, a shoe engaging and moving member pivoted to said rack, and a device pivoted on said rack for actuating said member.

9. A sole feeding device for shoe nailing machines comprising a reciprocatory plate, an arm having a toothed edge pivoted to said plate, and means for extending and withdrawing said toothed edge respectively beyond and Within the edge of said plate comprising a member pivoted to said plate having an extension adapted to engage said arm and a second extension carrying frictional engaging means whereby the movement of said reciprocating plate causes the pivoting and sliding of said member.

In testimony whereof I aflix my signature in the presence of two witnesses.

MAURICE S. FIN OH.

Washington, D. C.

Commissioner ofPatents.

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