US748794A - Welt-making machine - Google Patents

Description

PATENTED JAN. 5, 1904.

G. E. ROLLINS.

WELT MAKING MACHINE.

APPLIOATION FILED MAY 'z. 1903.

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G. E. ROLLINS. WELT MAKING MACHINE.

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Patented January 5, 1904.

PATENT OFFICE.

GEORGE E. ROLLINS, OF EAST BRIDGEWATER, MASSACHUSETTS.

WELT-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent No. 748,794, dated January 5, 1904.

To all whom it may concern.-

Be it known that I, GEORGE E. ROLLINS, of

East Bridgewater, county of Plymouth, State of Massachusetts, have invented an Improvement in Welt-Making Machines, of which the following description, in connection with the accompanying drawings, is a' specification, like letters on the drawings representing like parts.

My invention is a machine for quickly and accurately preparing welt-strips for Goodyear iwork and other uses requiring welting.

The constructional details and various ad vantages of my invention will be pointed out in the following description, reference being had to the accompanying drawings, in which I have illustrateda preferred embodiment of my invention, which will be more particularly defined in the appended claims.

In the drawings, Figure 1 is a top plan view of one form of my invention. Fig. 2 shows the same in front elevation. Figs. 3 to 5 are enlarged sectional details taken on the lines 3 3, Fig. 1, 4: 4, Fig. 5, and 5 5,\Fig. 4, re-,

spectively. Fig. 6 is a fragmentary detail and top plan of a portion of the welt cut by this machine. Fig. 7 is a transverse sectional view thereof on the dotted line 7 7, Fig. 6.

Mounted on any suitable base a and table a is a drive-shaft a journaled in a standard a and provided with a rotary cutter a at one end and a drive-pulley a at the other end. Adjacent said shaft is a guide pulley a, about which the welt-strip 10 may pass for accurate guidance, and adjacent thereto are preliminary cutters a a for cutting, respectively, a longitudinal groove w and an opposite beveled edge to on the strip '10. These knives are mounted in a casting or other suitable holder of, as shown in detail in Figs. 4; and 5, the blade a being notched at a for engagement with the head of an adjustingscrew (1 for regulating the depth of cut of the knife. Opposite the cutting end of said knife is an opening 0& to receive the cut-out portion of stock removed from the groove w, which passes through an eye. or hole a in the end of said knife. The knife a is arranged at the proper angle required for the bevel r0 provide a welt-guide a capable of adj ostment toward and from said cutter and angu- Opposite the rotary cutter a I larly up and down for enabling the machine to cut notches or grooves 'w in the welt of any desired depth and length, according to the purpose for which the welt is to be used. This holder, com prises two parts 0, a", the former 'having an upturned end slotted at a and a deflecting member (1 shown as a rib or horizontal head for entering the groove to in the welt-strip and adjacent to said guide member a pocket 00 to receive the lower edge of the welt-strip as it is turned back out of the way of the cutter end a by therib a The part a extends rearwardly at a, Where it is provided with an upturned end e engaged by an adj usting-screw (1 working in the part a" for adjusting the welt-receiving opening to fit difierent thicknesses of welt. The said two parts are clamped together vertically by a bolt 0: the part a," preferably having an overhanging end 01 for retaining the upper edge of the welt and also having acurved rib a, fitting into a corresponding groove in a carrier-block (1 mounted on a stationary support a, herein shown as a part of the same casting which provides the standard a The carrier (1 has a depending end a engagedby an adjustingbolt 0, for adjusting the same out and in, and thereby correspondingly adjusting the holder 01, out and in. The carrier 01, has an elongated slot (L (shown in dotted lines, Fig. 3) for receiving a setscrew (1 from the holder for clamping the latter at the angle of adjustment desired. Beyond the cutters I provide suitable feeding mechanism, herein shown as comprising a guidewheel a and opposite driving-wheel or, operated, respectively, by gears 61 a to the latter of which is secured a ratchet e operated by a springcontrolled pawl a whose arm a is engaged at proper intervals by a log (Z41 on the shaft a thereby ratcheting the'feed-rolls forward after each cut, so as to bring the welt in proper position for the next cut.

In operation the we1t-strip w as it is fed forward by the feeding mechanism is cut by the knives 01, a at the points w w and is held taut between its bent portion at th e guidepulley of and the feed-wheels (1, a under even tension, so that as the continually-rotating cutter a engages said strip it is enabled to make a clean out exactly as required, the welt-strip being held firmly between the jaws of the holder and sustained by the bifurcated upturned end, so as to prevent any ragged or improper out. As each vertical cut is made the welt is fed forward one step through the unchanging passage fitting the same and formed between the jaws or parts a a" of the holder, the wheel 0. being provided with a plurality of projecting portions a, which engage the vertical notches 20 already cut in the welt and prevent the welt from slipping. The length of out '11; maybe increased to any extent desired simply by rocking the holder so as to cause the cutter to enter the leather higher up than shown, and the depth of the cut may be varied by moving said holder toward the cutter, while the shape of the cut depends upon whether the welt-strip is maintained flat in its out portion or is curved by the holder. By bending the lower edge of the welt back, as shown, not only is the leather brought under tension for enabling the cutter to operate to the best advantage, but the notches w are confined to the upper portion of the Welt, as shown in Fig. 6, whereas by not bending the welt cut so far back said notches can be made to extend across the lower edge of said welt, if desired.

It will be understood that my invention is not restricted to the constructional details shown, as many variations in form, arrangement, and combination of parts may be resorted to without departing from the spirit and scope of my invention.

. I do not here claim the welt itself, as that forms the subject-matter of another application for Letters Patent.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A machine of the kind described, comprising means for feeding a welt-strip, means for holding said welt-strip, means cooperating therewith for cutting a groove in one face of said strip, and means for limiting the length of the groove in the strip to less than the width of the strip.

2. A machine of the kind described, comprising means for feedinga welt-strip, a holder for the strip, and cutting mechanism for removing the leather therefrom to form a series of grooves within and extending transversely of one face of said strip, and means for rocking said holder for controlling the length of the groove with relation to the width of the strip.

3. In a machine of the kind described, a holder for a welt-strip, a cutter cooperating therewith for cutting said strip, said holder having a passage conforming in shape and size to the welt-strip and substantially embracing the strip, said passage being adjustable for different thicknesses of strips.

at. In a machine of the kind described, a holder for a welt-strip, a cutter cooperating therewith for removing transverse grooves of material from one face of said strip less in I length than the width of the strip, and means for varying the depth of the grooves formed.

5. In a machine of the kind described, a holder for a welt-strip, a cutter having a blade acting intermittently on and notching said strip on one side at intervals of its length, and

' means for varying the angular position of said holder with relation to said cutter to change the length of the notches.

6. In a machine of thekind described, a holder for a welt-strip, a cutter cooperating therewith for cutting said strip, said holder substantially embracing the strip, and means for varying the angular position of said holder with relation to said cutter.

7. In a machine of the kind described, a holder for a welt-strip, a cutter cooperating therewith for cutting said strip, said holder containing means for bending said welt-strip transversely to its length.

8. In a machine of the kind described, a holder for a welt-strip, a cutter cooperating therewith for cutting said strip, said holder being adjustable for diiferent thicknesses of strips, and also adjustable toward and from said cutter.

9. A machine of the kind described, comprising a cutter, for cutting a welt-strip and means for bending said strip opposite said cutter in a direction transverse to its length.

10. In a machine of the kind described, a holder for a welt-strip comprising opposite parts for substantially embracing said strip, one of said parts having a deflecting device for engaging the welt on one side and bending the adjacent edge thereof out of line with the rest of the welt.

11. In a machine of the kind described, a holder for a welt-strip comprising two parts and means for adjusting the same toward and from each other for difierent thicknesses of strips, one part having a slotted portion for engaging the outer side of the welt, and a cutter for operating in said slot on said welt.

12. In a machine of the kind described, means for holding a Welt-strip comprising a carrier, means for adjusting the same out and in, and a holder vertically adjustable on said carrier, said holder having an opening for the passage of the welt-strip.

13. A machine of the kind described, comprising a holder for a welt-strip, a cutter c0- operating therewith for cutting transverse notches therein, and feeding mechanism for feeding the welt-strip, including a feed device having projections spaced apart to correspond with the notches cutin the strip, said projections entering said notches and feeding the strip thereby.

14:. A machine of the kind described, comprising feeding mechanism, a cutter for making a series of transverse cuts in a welt-strip, cutting mechanism for longitudinally cutting said strip, and directing means for presenting said strip in different directions to said respective cutting devices.

15. In a machine of the kind described, a

IIO

holder for a welt-strip, a cutter cooperating prising means for cutting a longitudinal therewith for cutting transverse grooves in groor e in a welt-strip, and means for cutting one face of said strip, and means for varying aseries of transverse groovesintersecting said the length of the grooves cut. longitudinal groove. 15

5 16. In a machine of the kind described, a. In testimony whereof I have signed my holder for a welt-strip, a cutter cooperating name to this specification in the presence of therewith for cutting transverse grooves in two subscribing witnesses one face of said strip, and means for varying GEORGE E. ROLLINS. the location of said grooves toward and from Witnesses: 1c the edge of said strip. GEO. H. MAXWELL,

17. A machine of the kind described, com- EDITH M. STODDARD.

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