US101234A - Improvement in rolling-machine for leather - Google Patents

Description

To all whom t't may concern lnterl garten @anni dtjiiiw.

Letters Patent No. 101,234, dated Ma/rch- 29, 1870.

IMPROVEMENT IN ROLLING-MACHINE FOR LEATHER i The Schedule referred to in these Letters Patent and lmaking part ofthe same Be it known that I, J CHN G. CURTIS, of Emporium, in the county of Cameron and State ofPennsylvania, have invented a new andimproved Leather-rolling Machine; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled iu theart to make and use the same, reference being had to tlieaccompauying drawings forming part of this specification.

This invention relates to that class of leather-rolling machines which work with toggle or knucklejoints, and consists in certain improvements thereon, which will be particularly specified hereinafter.

Figure 1 is a side elevation of my improved machine with la part represented in section, and

Figure 2 is a transverse section through the rod or bar for operating the rocker-arms.

Similar letters of reference indicate corresponding parts.

A is the frame of the machine;

B the pendent'vibrating roller support;

. C the roller;

D the concave bed; and

E the connecting-rod, by which motion is lcommunicated to the roller support and rollers.

I place this rolling bed D on a springing support, E', arranged in the parts of the frame for adjustment higher or lower, as required, as shown at F, and under this support l arrange the eccentric rocker-arms G, in one or more` pairs, and the reciprocating bar H, as clearly shown in the drawings, for raising the bed D, and its support E toward the roller by springing the said support when required for varying the pressure on the leather placed on the bed D, and subjected to the action of the roller. These arms G have eccentric curved bases I, and "the ends opposite the said bases are connected to the rod or bar H in notches K, which serve as the axis or the rocking motion of the said arms, which axis is moved to and fro when the bar H is moved, causing an upward movement to the Vsupport E, as the greater radii of the arms are brought to coincide with the line perpendicular to the rod H. The downward movement of the support is caused The arm M is provided with a slot for the connecting-piu 'of the rod or bar H, to admit of the necessary radial movement of the pin with thev said arm.

'10 prevent the rocker arms ti'o'm slipping on their bases, they are serrated, notched, or provided with cogs or teeth, and plates O, with recesses in the faces, for the reception ofthe curved bases of t-he arms, and

l with notches, serrations or cogs corresponding to those on the arms, one attached to the support E and the permanent bed, and suitably arranged' to hold them in place, both laterally and in the direction in which they rock. The said arms are ^shaped on the other end, where they tit the notches in the bar, and these points are notched, as shown in tig. .2, to t bars P, extending across the notches, which prevent the es cape of these ends laterally. v

The mode of construction is very cheap and simple, requiring little or no fitting in putting together the parts being suitably formed by casting.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- Y 1. The combination of the treadle, rock-shaft, slotted arm M, reciprocating rod H, eccentric cogged arms G, and corresponding rack-plates 0, all arranged as set forth.

2. The eccentric knees G, having their sharp ends I JN0. Dor, A, J. Moons.

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