USRE8088E - Improvement in leather boarding and graining machines - Google Patents

Description

2 Sheets-Sheet 1.

L. TOWN'SEND,

Assignor to C. GUILD. Leather Boarding and Graining Machine.

Reissued Feb. 19,1878.

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2 Sheebs-Sheet 2.

L. TOWNKSEND Assignor to C. GUILD. Leather Boarding and Granng Machine.

No. 8,088. Reissued Feb. 19, 1878.

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UNITED STATES PATENT OFFICE.

LOUIS TOWNSEND, or TERRE HAUTE, INDIANA, ASSIGNOR To CHESTER GUILD, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT iN LEATHER BoARolNc AND GRAINING MACHINES.

February 19, 1878; application filed November 7, 187 7.

To all whom it may concern: Be it known that I, LOUIS TOWNSEND, of

-Terre Haute, in the county of Vigo andStatez of Indiana, have invented a new and useful Improvement in Machines for Boarding, Graining, and Softening Leather; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had Vto the accompanying draw Figure l is a top view of my improved machine, part of the'y upper roller being broken away to show the construction. Fig. 2 is a detail vertical section of the same, taken through the line a; a: of Fig. 1. Fig. 3 is adetail sectional view of the same, taken through the line 1f y of Fig. l.

Similar letters of -reierence indicate corresponding parts. j f p My invention has for its object to furnish an -improvedmachine for boarding, grinning, and softening leather, which shall be simple in construction, convenient in use, and leffect ive-in operation, doing its work quicker and better than it can be done by hand, and with substantially the effectof hand-boarding upon leather. 4

My invention consists, in such a machine, of an adjustable plate or blade, the same being aC"1.sted by mechanism to admit of the plate OI lade being brought in the desired position be reen the boarding-rollers.

la y invention further' consists, in connection with an upper boardin-groller and a lower boarding-roller, vof a plate, or blade, said upper roller, and the plate or blade being connectedwith-an arrangement of levers or mechanism, whereby the two may -be simultaneously adjusted with relation to each other.

My invention `also consists of a plate or blade, having connected theretopivoted arms or levers, in combination with a foot lever or treadle and a suitable intermediate lever, i

whereby the operator is enabled to bring the plate or blade in the desired position between the boarding-rollers.

My invent-ion also consists, in connection with suitable boarding-rol 1ers, and an adjustable plate or blade, of a feeding-rollerfor -the purpose of holding the leather firmly against the boardingrollers during the operation.

ings, inwhichf f My invention also'v consists in the employment of a spring and a means for regulating l the .tension of the same, by which the upper .f boarding-roller is capable of being adjusted to orheld down upouthe llower boarding-roller.

My invention further consists of the arrangei ment of gearing, as will be hereinafter Inore fully set forth.

In the drawings, A represents the frame of [the machine, the central end posts ofpwhich j are grooved or channeled longitudinally upon i their inner sides to receive the frame com` g posed of the bars'B, which slide up and down iin said grooves, and to the upper 'part of i which are attached the bearingsin which the journals of the upper boarding and graiuing roller 'C revolve. DIS the lower boarding and .graining roller, its journals revolving in sta f, tiouary bearings formed upon o r attached to l the frame A. vThe rollers C D should be covl ered with iine emery, to enable them to take l hold of the leather to be operated upon. i To the projecting journals of the rollers (l I D, at one Side of the machine, areattached gear-wheels E' F, the teeth of which mesh i into the teeth of the intermediate gearwheel i G, -the journals of which revolve in bearings attached in the frame A, and in a bracket, H,

to said frame.

.-To the journals of the intermediate orearwheel G is attached a large bevel-gear wheel, I, which serves as ally-wheel, andthe teeth i of whichl mesh into teeth of a small bevel l gear wheel, J, attached to the shaft K, and

i which revolves in' brackets attached to the i frame A, and to which vmotion lis given from any convenient power by a crank or pulley l in the ordinary manner. By this construction the upper roller O can be raised for the 1 convenient vinsertion of theI leather without .disarranging the gearing. y

The frame B is held down, to hold the up per roller (l down upon the roller D, by a i spring, L, resting upon the bottom bar of l said frame B, and presses against the lower f cross-bar of the frame A. The tension of the 1 spring L is regulated by -a set-screw, M, ,l which passes through the' said cross-bars of the frame A, and bears against the spring L. N are levers, the outer ends of which are Reissue No. 8,088, dma

connected by .a cross-bar, 0, -which serves as a footlever or treadle for operating said le.- vers. The inner ends of the levers N are pivoted tothe lower parts of the .frame B by bolts or screws which pass through slots or elongated holes iin the said levers and into the frame B. The levers N are pivoted to the frame A by bolts 0r 'screws which pass through holes in the said levers and frame.

P is a roller, made somewhat smaller than the rollers C D, so as to enter the space between the forward sides of said rollers and hold the leather firmly against them. The journals fof the roller l? revolve in bearings in the outer ends of thev levers Q, which are pivoted to the frame A by bolts or screws passing through short slots in the levers Q and into the said frame B. By this construction, as the frame B and upper roller'C are raised, the leversv Q are operated to throw back the roller P to allow the leather to be conveniently introduced.

A plate or blade, S, over which the leather j is folded, 'is connected to the levers Q by arms R, and is connected to the frame B by softening leather, a plate 0r blade, in combithe levers Q, in such a manner that will admit of its being swung in position between the rollers C D, toA bring the fold of the leather, at or near the center, between said rollers.

It will be seen that both the upper board ing-roller and the yplate or. blade are so conneetedwith the. narms B that when pressure `is brought upon the outer ends of the levers N, or upon the cross-bars 0, the upper roller C will be raised simultaneously with the adjustment of the plate 'or'1 blade, which is thrown back to admit of the insertion of a fresh side of the leather to be operated upon, thereby making the roller and plate or blade simultaneously adjustable with relation to each other.

In using the machine the outer ends` of the levers N are pressed down by the treadle .0,

which raises the frame B and upper roller C, and operates the lever Q to throw back the roller P and plate or blade S. The leather is then folded over the front edge of the plate or blade, and as the weight -is re- .leased from the treadle O the spring L forces -the frame B and roller C down, which operates the levers Q to throw the plate or blade S and roller I) forward, the plate or blade S and the roller I holding it firmly between the rollers Cv D. It', now, the machine is started, the rollers D P will draw the leather inward and the rollers C P will draw it outward, while the plate or blade S will keep it doubled or folded,` and` press it between the l rollers() D, the fold of the leather constantly changing its place, and the same eect being' produced as is 'produced'by hand boarding and graining, and doing it quicker and better and more uniformly.

Having now fully described the construction and operation of my invention, what I claim, and desire to secure by Letters Patent, 1s

v 1. In a machine for boarding, grainin g, and softening leather, an adjustable plate or blade, over the edge of which the leatherto be boarded is folded and moved, said plate or blade being adjusted by mechanism, substantally as and for the purpose set forth.

2.l In a machine for boarding, graining, and softening leather, the combination, withv upper and lower boarding-rollers, of a plate 0rblade over which the leather is folded, said upper roller andvplate or blade adapted to be adjusted simultaneously and with relation to each other, substantially as and for vthe purpose described.

3. In a machine for boarding, graning, and

nation with pivoted arms or levers, an intermediate lever, and` a foot-lever or treadle, whereby the operator is enabled'to adjust said plate or vblade in relation to the boarding rollers or cylinders, substantially as and for the purpose set forth.

4. The combination,.with suitable boardingrollers and an adjustable plate or blade, of a) feeding-roller, for the' purpose of holding the leather against the boarding-rollers, substantially as specified.

5. The spring purpose of holding the upper roller C against the lower roller D, as set forth.

6. The shaft K, bevel-gear wheels I J, gearwheels E F, and intermediate gear-wheel Gr,

combined to operate substantially as and for the purpose specified. l

7. 'lhe frame A, the central end posts of which are grooved longitudinally upon their inner sides to receive theframe B `and the slotted levers N and Q, platel or blade S, and

rollers C D P', combined to operate substantially as and for. the purpose specified.

In testimony that I claim the above I' have hereunto subscribed my name in the 'presence of two witnesses.

Louis Townsend).

` Witnesses:

JAMES D. BROWN, HENRY H. BoUnrNoT.

Land lset-screw M, for thel

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