US894839A - Leather-working machine. - Google Patents

Description

I. G. LEVIN.

, l LEATHER WORKING MACHINE.

APPLICATION FILED MAR. 26, 1908. v

PATENTED AUG. 4, 1908.-

s sums-SHEET 1.

mreofa/ PATENTED AUG. 4,1908.

1. G; LEVIN. v LEATHER WORKING MACHINE.-

3 SHEETS-SHEETZ.

APPLICATION FILED MAR. 26, 1908.

A/fka LEATHERWORKING MACHINE.

APPLIOATION PILED MAR. 26, 1908 /a U l8 'ISAAG G. LEVIN, OF CHICAGO, ILLINOIS.

LE ATHER-WORKING MACHINE Specification of Letters Patent.

Patented Aug. 4;, 1908.

Application filed March 26,1908. Serial N 0. 423,447.

To all whom it may concern: I I

Be it known thatl, IsAAo G. LEVIN, a citizen of the United States, residing at Chicago, in the county of (look and State of Illinois, have invented a certain new and useful Improvement in Leather-Working Machines, of which the following is a specification.

This invention relates to leather working machines designed. for glazing, ironing or rolling leather.

The object of the invention is to provide automatic means for'performing these operations upon a leather surface.

The invention consists in a rotating wheel provided with a plurality of ironing, glazing or rolling tools in combination with means for applying heat to and continuously heating the ironing and rolling tools.

More particularly it consists in means for doing this heating by the use of gas; in means for varying the position of the leather with reference to the wheel and consequently varying the pressure of the tools u on the leather and in means for automatical y'shifting the leather sup orting devices so that as it is moved to an from the wheel a uniform ressure is exerted by each particular toolcarried by the wheel upon all portions of the surface of the leather which is to be operated upon.

It further consists in a device which can be easily and cheaply made and installed, which is efficient in operation and is not readily liable to get out of order, and in details of construction which will be hereafter more fully described and claimed.

Referring to the drawings, Figure 1' is a,

front view of a complete assembled machine showing the device of this invention in its preferred form. Figs. 2 and 3 are opposite side views of the essential ironing arts of the de vice.. Fig. 4 is a detail view 0 a roller. Fig.

5 is a vertical sectional end view taken on the lines a, a, of Fig. 2. Fig. 6 is aperspective view showing the prmcipal leather supporting device or bed. Fig. 7 is a view partially in section showing certain springs which will be hereafter described. Fig. 8 is abottom view of Fig. 7. Fig. 9 is a sectional detail view of a shaft having the leather supportingframe eccentrically mounted thereon for purposes to be hereafter described. I I I The operative parts of the mechanism are mounted upon two parallel supporting frames composed of the horizontal parts 10 bearings 18 formed in the and the vertical parts 11. These parts are as just stated and as best shown in Fig. 5 placed parallel to each other so that there is room between them .for a wheel 14, rigidly mounted upon the shaft 16, by means of the key 17 or other suitable means, to freely rotate between the upright members 11 on the upper portions 20 On one end of this shaft 18 is a gear wheel 22 meshing with two pinions 23 and 24, the latter being mounted upon a shaft 25 carrying pulleys 26 and 27 to which power is applied from any suitable source in any suitable manner to rotate the wheel through the mechanism described, in the ordinary manner. The outer end of this shaft 25 is preferably supported upon a suitable frame member 30. The

of the members 11.

many means which may be provided for mechanically rotating this shaft 25 with the wheel upon it, andany equivalent device for doing this may be used without departing from the spirit of this invention. The spokes of the wheel 14 are connected together at their outer ends by rim members 35 and projecting from the outer surface of.

this rim 35 at any suitable points are lugs 36. These lugs 36 are as shown made .in two parts secured to the rim 35 by screws or pins or by any suitable means. The two parts of the lugs are adapted to'be adjusted slightly to and from each other by use of the elongated slots 31 and to be secured or clamped together by the bolts 32. In the particular design here illustrated the lugs are laced one opposite each s oke but manifestly other lugs may be p aced between spokes if desired without departing from this invention. Between the halves of the lugs 36 there is detachably secured by the mechanism just described an ironing or lazing member 38. An ironing member being shown in the drawing. These ironing members are made of short pipe preferably of metal, so that the outer surfaces or that portion of each surface away from the center of the wheel performs the ironing function as it passesleather placed adjacent to the path of travel of the ironing members but manifestly these tubular ironing members I 38 may be made of glass for glazing or burnishing if desired.

' Around the circumference of the wheel, a

little inside the rim 35, is a circular hollow gas pipe 40 having connected to it adjacent to each tubular member 38 a pipe member 41-4243-44, the latter portion 44 extending inside the adjacent pipe 38 and having perforations therein as shown in Fig. 4 inside the pipe 38, so that gas escaping from said perforations may be burned within the pipe or ironing member 38 for the purpose of eating the same. This circumferential pipe 40 is connected at some suitable point in its length to a pipe 46 having its opposite end 48 entering a hollow chamber 4.9 within one end of the shaft 16 heretofore described. This shaft 16 has a gas tight connection permitting rotation of the shaft with reference to the stationary pipe 52 having its lower end 53 connected to any suitable source of gas supply. Any mechanism which will permit rotation of the shaft 16 and the bearing 18 and still permit the admission of gas from the pipe 52 to the chamber 49 in the shaft 16 while the wheel is rotating may be used-without departing from the spirit of this invention. The particular means here provided consists in providing the end of the pipe 52 with a flange 55 to which is rigidly connected a hollow pipe stem 56 extending inside of a hollow passage way in the end of the shaft 16 and terminating in the packing head 57. This stem 56 is screw threaded into the flange 55 at 58 as shown.

From the foregoing it will readily be seen that when the wheel 14 is rotated by the power mechanism described and gas is applied to the pipe 52 it will pass through said pipe into the chamber 49 thence through the pipe 56 into the circular pipe 40 from which it passes through the different sets of pipes 42 into each of the ironing members 38 with the result that they are heated by the lighted gas which escapes therein through the orifices 44. It thus appears that the circumference of the wheel is provided with a series of continuously gas heated ironing members which may be used for ironing leather or other suitable material provided the leather is brought into suitable contact with the irons at the proper times and places. The mechanism for doing this will now be described. J ournaledin the lower frame members 10 at suitable points as shown in Figs. 2 and 3 are two shafts 60 and 61 each carrying pinions 62 and 63 which mesh into worms 64 and 65 upon a shaft 66 journaled in suitable bearings 68 and 69 and adapted to be rotated by the hand wheel 70 bearing the handle 71. This shaft 66 is prevented from moving endwise by the engagement of the worms 64 and 65 with the supporting members 68 and 69 so that rotating the hand wheel 70 and consequently the shaft 66 causes the pinions 62 and 63 to rotate and consequently rotate the shafts 60 and 61. On these shafts 60 and 61 and between the frames 10 are mounted eccentrics 72 which fit into and engage the lower members 74 of a frame 75 (best seen in Fig. 6). The result of this is that as the shafts 60 and 61 are rotated this whole frame is moved to different positions depending upon the eccentricity of the eccentrics and their relative sizes (manifestly they may be of different sizes) and the whole device is so located and arranged that rotating the shaft 66 therefore moves the curved bed member 78 of this supporting member toward and from the center of the wheel, along the line of radius of the wheel and the radius of curvature of the surface 78. The bed surface 78 is so located that as best shown in Figs. 2 and 3 it is normally just in contact with the ironing members 38 as the wheel 14 is rotated. In order to vary the pressure of these ironing members 38 upon leather placed upon this bed 78 the bed itself is mounted upon pins or rods 80, best seen in Fig. 7, entering springs 81 bearing against blocks 82 screw threaded at 83 into external casings 84. The lower ends of the rods contain thumb screws 86, screw threaded at 87, upon these rods, but the rods 80 slide freely through the blocks 82 from which it willbe seen that the tension of the springs 81 may be adjusted by first screwing the blocks 82 into the casings 84 and then tightening 9 the thumb screws 86 upon the rods 80 or by reversing the operation as required.

By properly adjusting the tension of these spring devices supporting the bed 78 and by properly proportioning the eccentricities and sizes of the cams 72 it is possible to so arrange the device that rotating the shaft 66 in either direction will promptly and suitably adjust the position of the leather bearing surface or bed 78 with reference to the path of travel of the ironing surfaces 38 with the result that leather placed upon this bed 78 is suitably acted upon by the hot irons 38. When it is desired to equip the machine with rollers instead of irons the operator simply removes the lugs 36 and attached parts and substitutes therefor the lugs 90 with attached rollers 91 pivoted thereto at 92 as shown in Fig. 4. By making the bearing 92 upon gas pipes 43 having the perforations 44 the rollers 91 may be heated just as the ironing members are; this because the rollers 91 are preferably hollow, cylindrical surfaces carried from suitable hubs by the spokes, 93.

The claims are:

1. In a device of the class described, the combination of a suitable supporting member, mechanism carrying a plurality of working members, means for heating said working members and means for moving said member carrying the working members in such a way that the working members are successively moved over said supporting surface.

2. In mechanism of the class described, the combination of a curved, leather supporting surface, an adjacent movable member carrying aplurality of working members,

means for heating said Working members the whole so arranged that as said movable member is moved the working members are successively moved oversaid curved surface.

3. In a device of the class described, in combination With a suitable curved surface adapted to have leather placed thereon, a wheel containing a plurality of working irons, means for heating said working members, and means for rotating said wheel in such a way that said working members successively pass over and in close contact With the curved surface.

4. In mechanism of the class described, the combination of a rotatable wheel, means upon the-circumference of the wheel capable of ironing, means for supplying heat to said ironing means while the wheel is rotating, a

curved surface corresponding in curvature to the circumference of said wheel at the circumferential line on which said ironing members are'located and means for adjusting the relative positions of the wheel and supporting member for the purposes set forth.

5. In mechanism of the class described, the combination with a rotatable wheel; a plurality of hollow tubular ironing members upon the circumference of the wheel, as connections between each of said tubuIar members and the hub of the wheel and means for supplying gas through the hub of the wheel to said ironing members as the wheel is rotated.

6; In mechanism of the class described,

the combination of a suitable supporting frame, a shaft thereon, a wheel on said shaft, means at one side of said frame for powerfully rotating said shaft and wheel, a plurality of ironing surfaces mounted about the circumference of said wheel, means including a passage Way through the shaft of the wheel for heating each of said ironing devices by admitting gas thereto.

In Witness whereof, I have hereunto subscribed my name in the presence of two Witnesses.

ISAAC G. LEVIN. Witnesses:

DWIGHT B. OHEEVER, C. J. OHRISTOFFEL.

Images