US1216497A - Machine for trimming the canvas of reinforced insoles. - Google Patents

Description

T- RINGENBACH;

MACHINE FOR TRIMMING THE CANVAS 0F REINFORCED INSOLES.

APPUCATION FILED FEB. 2!. 1915.

1,21 6A9? Patnted Feb. 20, 1917.

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THEOBALI) RINGENBACH, OF ROSED ALEJ KENTUCKY.

MACHINE FOR TRIMMING THE CANVAS OF REINFORCED INSOLES.

, Specification of Letters Patent.

Patented Feb. 20, 1917.

Application filedrFebruary 21, 1916. ;Seria1.No. 79,538.

To all whom it may concern Be it known that I, THEOBALD RINGEN- nacrr, a citizen of the United States, and a resident of Rosedale, in the county of Kenton and State of Kentucky, have invented certain new and, useful Improvements in Machines for Trimming the Canvas of Reinforced Insoles, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification.

In the manufacture of welt shoes, insoles are used which are reinforced with canvas.

The insoles are channeled, the lips turned up and a reinforcement of canvas is then applied and cemented in place. The canvas reinforce then. has to be trimmed off, and recently it has been sought to trim the canvas inside the edge of the insole, instead of along the edges of theinsole. To accomplish this, it is necessary to provide a trimming knife that may beaceurately adjusted and which shall cut the canvas so as not to harm the underlying leather,

It is the object, therefore, of my invention to provide a construction of an attachment for this purpose which can be readily and easily attached to such atype of feathering machineas illustrated in Patent No. 966,561, of August 9, 1910, issued to George J. Kilb and myself. y

In the drawings,

Figure 1 is a side elevation of the machine with my improvements applied thereto.

Fig. 2 is a similar View somewhat enlarged, showing the trimming attachment with the feed table in section.

Fig. 3 is a vertical transverse section, taken on the line 3, 3, of Fig. 2.

Fig. 4 is a horizontal section, taken on the line 1, 4, of Fig. 2, showing a portion of the insole. I v

Fig. 5 is a plan view of the outer end of the table block carrying the roller plate.

The invention is intended to be applied to the general construction of J feathering machines such asset forthinrthe above mentioned patent, in which 1 represents the upper portion of a suitable framework, upon which is mounted a table 2 for holding the operating parts. Suitably bolted to this table 2is a plate 3, earryingthe vertical standards 4;, 5, with the standard 5 provided with a forward extension 6. Suitably 10111- naled in the upper end of these standards is the feed wheel shaft '7, which is held in position by the collars 8, 9, secured by set screws and abutting against the side faces of the standards. Mounted on one end of the feed shaft is a driving gear 10, driven by the driving pinion 11, mounted on the driving shaft upon whiehthe usual tight and loose pulleys 12 are mounted for the driving belt.

A bracket plate 13 is secured in vertical position alongside of the standard 5 by means of the horizontal extension plate 14, extending rearward from the bracket and securely bolted to the. under surface of the table 2. This bracket is lin'ovided with the two forwardly extending arms 15 and 16, suitably apertured at their outer ends to receiveand hold loosely a rod or shaft 17. A coiled spring 18 is mountedaround the rod 17, with a bearing between the bracket arm 15 and the collar 19 held in adjustable position by a set screw for tensioning the spring. The upward movement of the rod 17 is limited by the collar 20 secured on the lower end of the, rod and bearing against the under surface of the bracket arm 15. The lower end of the rod 17 is provided with an eye 21 for connecting the rod to a suitable foot treadle (not shown), so that by depressing the foot treadle the rod 17 can be readily depressed against the tension of the spring 18;

So much of the machine as above described is similar. to that shown in the above mentioned patent and forms no part of the present invention.

Mounted on the stud 23 on the upper end of the rod 17 in horizontal position is a table block 22, and to guide the table block L as the foottreadle is raised or lowered, the rear end of the block slides in a suitable guideway in the projection 25 from the bracket13. In the outer end of the table block 22 is, mounted a roller plate or disk 2-6, held in place in a suitable depression in the table block by the screw 27, which engages the depending stem of the roller disk 26. The disk is supported on ball. bearings 28 so that it can rotate freely and easily.

Secured on top of the table block 22 is a guide plate 29, held in adjustable position by a slot andset screw connection 30, with anose 31 of the guide plate extending forwardly almost to the periphery of the roller disk 26. This guide plate serves as a guide underneath the feed wheel shaft 7, and the cutting knife 36 is secured at the lower end of the plate by the set screw 37 which bears against the shank of the knife which is turned at right angles and inserted in a hole inthe lower end of the bracket, 50- that it can be readily removed for sharpening. Mounted on the outer end of-the feed wheel shaft 7 is the feed wheel 39, provided with a knurled periphery a0 and preferably beveled on its outer surface. Thecutting edge of the cutting knife is located in a vertical plane with the axis of rotation of both the feed wheel shaft 7. and the roller plate 26, and the parts are soadjusted that there is only a clearance of about one-sixtyfourth of an inch between the periphery of the feed wheel and the cutting edge and about onethirtysecond of an inch between the periphery of the roller plate and the cutting dge:

For cutting the canvas 42 from the insole ll, the table block 22 is depressed to allow the insertion of the insole underneath the feed wheel with the lips uppermost, with the'beyel of the feed wheel bearing against the outer surface of the lip 43. The edge of the insole is fed against the guide plate, and the parts are so adjusted that the knife will cut through the canvas inside the feather of the insole without cutting theinsole itself. The .freely moving roller disk 26, m0unted on the upwardly spring-pressed table block in connection with'the relatively fixed feed 'wheel permits the work to be 7 i rapidly fedto the, cutting knife.

; I donot Wish to be limited in the claims that follow to the exact structure described in the foregoing specification, as the description refers but .to the preferred form of my invention; on the contrary, I wish to be entitled to the full scope of'the doctrine of equivalents in the. construction of my claims. Also Ido not wish to belimited in m claims because of my failure at this time to appreciate the full usefulness of my invention, as I intend it to be used in the future in any manner that may turn out to be economical andconvenient, and that more mechanical changes necessary to adapt it to feed wheel and a cutting knife held in relatively fixed position, with the bearing edge of the feed wheel and the cutting edge of the knife in substantially the same vertical plane, and an upwardly spring-pressed nonrotatable table block upon which the insoles are fed, the table block provided with a flat roller 'disk'mounted idly thereon to rotate freely and easily, parallel with. the top surface of the block, and a guide plate mounted on the block to guide the insole to the knife.

2. In a machine of the class described, a feed wheel and a cutting knife held in relatively fixed position, with the bearing edge of the feed wheel and the cutting edge of the knife in substantially the same vertical plane in close proximity to each other, and an upwardly springpressed lmn-rotatablc table block upon which the insoles are fed, the table block provided with a fiat roll or disk mounted idly thereon to rotate freely and easily parallel with the top surface of the block on an axis in the same vertical plane with the axis of the feed wheel, and a guide plate mounted on the block to guide the insole to the knife.

3. In a machine of the class described. a feed wheel and a cutting knife held in relatively, fixed position, with the bearing edge of the feed wheel and the cutting edge of the knife in substantially the same vertical plane in close proximity to each other, and

an upwardly spring-pressed non-rotatable Y the disk.

4. In a machine of the class described, a feed wheel and a cutting knife held in relatively fixed position, a table upon which insoles are fed, the table provided with a flat roller disk mounted idly thereon to rotate freely and easily, parallel with the top surface of the table, and a guide plate mounted on the table to guide the insole tothe knife.

, THEOBALD RINGENBACl-I.

Gopies of this patnt maybe obtained for five cents each, by addressing the f Commissioner of Patents,

' Washington, D. G.

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