US2555A

US2555A - Improvement in cotton and hay presses

Info

Publication number: US2555A
Authority: US
Publication date: 1842-04-16
Anticipated expiration: 1859-04-16

Description

AUnirse STATES APwrinvr Ormea.

P. GARDINER, OF NEW YORK, N. Y.

IMPROVEMENT IN COTTON AND HAY PRESSES.

Specification forming part of Letters Patent No. 2,555, dated April 16, 1842. t

' Articles; and I do hereby declare that the following is a full and exact description thereof.

I denominate my press the improved progressive lever and toggle-joint press, the follower being moved by the progressive levers, usually denominated the toggle-joint; 7 and my improvement consists in the particular manner in which I actuate or apply the power to said levers.-

In the accompanying drawings, Figure 1 is a perspective view of my press in its ordinary form;` but the frame-work and the construction of the part for containing the goods to be pressed may be varied, both in form and material, so as to adapt it to the particular purpose for which it is intended, myimprovement being limited to the mannerof actuating the follower.

Fig. 2 is a perspective view of the progressive levers and of the other parts immediately concerned in raising or depressing the follower on my improved plan of effecting this object'. The explanation given of this part will embrace everything that is necessary in making the nature of my invention fully known. In this figure, A is apart of the stationary framework of the press, to which the arm or arms B B of the progressive levers are attached by a joint-pin, the other ends of B B being connected to the arm C by a suitable joint. Dis the follower, to the center of which the arm Gis also in like manner connected. To the arm C is attached the curved rack or toothed segment E E, this and the arm C being cast in one piece. Into the teeth of this segment or rack the pinion F is geared, the shaft of which may be turned by means of a winch or by any adequate power applied thereto. The pinion F is so situated as that when the lever B is in a horizontal` position and the follower D at its lowest point the uppermost teeth of the segment or rack E E will be in gear with it, and when the follower is raised to its greatest elevation the lowermost teeth of the segment will be in gear with said pinion and the i leversB and C will be in a line with each other. It is not necessary to give a mathematical demonstration of the nature of the curve of the toothed segment, as the manner of laying it out mechanically will be obvious to every workman, and would in practice always be resorted to.

Vhen the press is placed in a vertical position, as represented in the drawings, the tangent of the curves formed by the segment and pinion will be in a vertical or nearly vertical line when the follower is at its lowest "point, and when at its highest, said tangent will be is a horizontal line, or nearly so, and between these points it will progressivelyvary during the motion of the follower.

This press may be placed either vertically or horizontally, and the progressive levers may be situated either above or below the follower, as may be preferred. In some cases it may be found best to dispense with the toothed gearing, and to let chains or bands wind around the shaft, which in the drawings is represented as the pinion-shaft ,"one end of such chains or bands being attached to the extreme ends of the segment and the other ends to the shaft. It is believed, however, that the toothed gearing will be preferred to any other arrangement.

Having thus fully described the nature of my improvement and shown thej manner in which the same is carried into operation, it is to be understood that I do not claim the attaching of a curved rack or toothed segment to one of the arms of that kind of progressive levers usually denominated the togglejoint,77 and the combining therewith a toothed pinion by means of which said levers shall be actuated; but Y e What I do claim as new, and desire to secure by Letters Patent, is-

l. The particular manner in which I have arranged and combined the toothed segment, the pinion, and the toggle-joint, as above set orth, the curved segment being attached to and extending from end to end of the upper arm of the progressive levers, and having the requisite eccentrieity to enable the pinion to operate upon it under an arrangement of parts substantially the same with that herein fully latter answering the purpose of the toothed described. l pinion, the principle of action being the same 2. As a modification of said arrangement, in either ease. the substitution of chains or bands for the P. G. GARDINER.

toothed gearing, such chains or band passing I Vitnesses: over a plain segment and being operated up- JOSEPH K. EDGERTON, on by a shaft around which they Wind, this! CLARENCE s. KISSAME.