US357230A - Silas h - Google Patents

Description

(No Model.)

S. H. RANDALL. LEATHER OREASING MACHINE.

No. 357,230 Patented Feb. 8, 1887.

FIGJZ.

N. PETERS. PhnlnLithagraphar. Washington, DC.

UNITED 1 STATES PATENT OFF CE.

sILAs H. RANDALL, or WYOMING, oHio.

LEATHER-CREASING MACHINE.

SPECIPICA'I'IONforming part of Letters Patent No. 357,230. dated February 8, 1887.

Application filed October 18, 1686. Serial No. 216,498. (No model.)

ments in Leather-Oreasing Machines, of which the following is a specification, reference being bad therein to the accompanying drawings.

, This invention relates to those leather-creasing machines whichinclude an upper andlower train of rolls, between which the strap isrun; and myimprovement consistsin journaling one of these trains in a swinging frame capable of being thrown back, so as to allow the most convenient access to the operative parts of the machine, Iusuallyjournal the upper train in this swinging frame, and operate the latter by a treadle movement, as hereinafter more fully described.

. the machine, the cords that operate the swinging frame being omitted. Fig. 31s an'end elevation' of the machine. Fig. 4 is another end elevation, but showing the frame that supports the upper train of rolls swung back to permit access to the lower train. Fig. 5 is an enlarged end elevation of one'of the adjustable journalbearings. Fig. 6 isahorizontal section of the box of said bearing.

A represents a bed plate or frame, having rigidly attached to its opposite ends the vertical arins B B, supporting a rock-shaft, O.

c c are pins that rigidly connect theopposite ends of this shaft to a pair of swinging arms, D D, each of which has a front extension, E, a rear prolongation, E, and a pendent stop, F, the members E E being perforated at e e to receive thongs or wire cords G G. These thongs or cords arefastened around the pins 0 c, and the front ends of said cords have eyes or other devices, 9 g, for ready coupling to the appliances that retain the swinging frame 0 D I) in its normal or operative position. 4

In Fig. 1 a spring, H, is shown as being used for this purpose, while in Fig. 3 the frame is closed by a weight, 71., one of the latter being applied to each of the cords G'G, the rear ends of thesecords being fastened to a bar, I,

united by a coupling, '6, tea treadle, J; but in In the annexed drawings, Figure 1 is a front similar to that just described, and connect this bar to the floor by one or more springs of any suitableconstruction. Eachswinging armhas a pair of lugs or ribs, k k, bearing against two sides of a sleeve, L, which sleeve is held in contact with said lugs by a screw, K, tapped into the stop F of said arm. Journaled in these sleeves is the shaft or mandrel M of the upper train of rolls, N, which latter may have any approved form of creasers, as suggested at a; but as said flanges are old and well known, further description of them is unnecessary.

0 represents the shaft of the lower train of rolls, I, said shaft being journaled in sleeves L, similar to those previously described. This lower pair of sleeves, L, is fitted in thevertical arms B B, each of the latter being provided wit-h a pair of lugs or ribs, M", and setscrews R, to retain said sleeves in place. Furthermore, the front portions of said vertical arms B B have horizontal screws S S and vertical screws T, which latter regulate the closure of the arms E E. The upper shaft, M, has a pinion, m, that gears with a pinion, o, of the lower shaft, crank, U.

V is a table that supports the machine. W is a stripper that prevents the strap adhering to the rolls.

the latter being turned by a X is a gap in the swinging arms D D to admit the sleeve of the upper shaft, and Y is .a similar gap in the vertical arms B B to admit thesleeve of the lower shaft.

In fittingup this machine, the bed-plate A is first secured to the table or work-bench V, and'the rear ends of the wire cords or other flexible connections G G are fastened to the opposite extremities of the common bar I. The cord G is then passed up through the hole e in the rearward prolongation, E, of the swinging arm D, and said cord is fastened around the pin a. The cord is now passed down through the hole e of the front extension, E, of said arm, and the eye 9 of said cord is engaged with the appropriate end of spring H, or with a suitable weight. The other cord, G, is then applied to the opposite arm, D, in a similar manner, thereby causing the arms D D to be closed by the stress of spring H, the degree of closure being regulated by properly adjusting the versome cases it may be preferred to attach the front ends of the cords G G to a common bar,

tical screws '1.

The ordinary opening of these arms, for the purpose of admitting a trace or other strap, is regulated by the horizontal screws S, which can be set so as to cause their inner ends to come in contact with the stop h of said arms. These adjustments having been effected, the operator depresses the treadle J, thereby raising the front ends of arms D D until their stops F come in contact with the points of screws S, which act elevates the upper train of rolls, N, a sufficient distance to permit the ready insertion of the strap in the machine. Treadle J is then liberated, thus leaving the spring H free to pull down the front end of the arms as far as the screws '1 will permit. The strap is then run through the machine in the usual manner, the surface of the leather being creased by the circumferential ereasers n of the rolls N. I

If it should be desired to inspect, change, or repair either train of rolls, the cords G G are first detached from the spring H, and the swinging frame G D D is thrown'baek to the position seen in Fig. 4, thus affording the most convenient access to all parts of the machine.

Any wear, either of the shafts or the sleeves within which they are journaled, can be readily taken up by slackening the proper set screw K or It and then shifting the sleeve, after which act said screw is again tightened. It is evident the slackening of these screws permits the bodily removal of the shafts M O at the appropriate gaps X Y, and without detaching any other part of the machine. Relerenee to Fig. 5 shows that the bearing r for the sleeve L is about vertically under the cen' ter of the same, while the other bearing, 7', is horizontally in line with said center. It will also be seen that the set-screw R is applied to plied to the lower instead of the upper train of rolls, and may be cast in one piece with a longitudinal bar that would take the place of the rock-shaft C.

I claim as my invention--- The combination, in a leatherereasing machine, of two trains of rolls driven by suitable gearing, one of said trains being supported by and between two journal'boxes, each of which is applied to one of a pair of rigidly-united stationary arms, while the other train is supported by and between twojournal-boxes, each of which is borne by one of a pair of rigidlyunited arms hinged to the previously-mentioned stationary arms, all arranged to 0perate substantially as herein described.

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

SILAS H. RANDALL.

Witnesses:

JAMES H. LAYJIAN, SAML. S. CARPENTER.

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