US119009A - Improvement in baling-presses - Google Patents

Description

iss] s GERGE BRODIE..

lmprovementin Baling Presses. Figi F2312 '119,009, ?atented Sep. 19,1871.

JMJ.

Unrra GEORGE BRODIE, OF PLUM BAYOU, ARKANSAS.

IMPROVEMENT IN BALlNG-PRESSES.

Specification forming part of Letters Patent No. 119,009, dated September 19, 1871.

To all whom it may concern:

Be it known that I, GEORGE Bnonm, of Plum Bayou, in the county of Jefferson and State of Arkansas, have invented certain Improvements in Baling-Presses; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanyingdrawing making part of this specification, in which- Figure l is a section taken through a press in a vertical plane on one side of' the follower-rod. Fig. 2 is a section taken vertically and transversely through the press. Fig. 3 is a top view of the follower-rod and its nut.

Similar letters of reference indicate corresponding parts in the several gures.

This invention relates to improvements in the construction of the follower-rods of screw-presses. In this class of presses it has been the practice hitherto to employ a singlescrew-rod in the center of the follower, or to employ two screwrods, or two racks arranged near the ends ofthe follower. The objection attending the presses is that the rods are liable to bend and break during the pressing operation in consequence of unequal strain on the extremities of the follower, which causes the latter to tilt more or less. If'

I it was practicable to pack the material into the bale-box equally then a central followerrod might Work very well; but it is well known that there is always more or less of the material at one end of the press-box than at the other. The object of my invention is to so construct a single follower-rod that will operate with equal force on both ends of the follower and prevent the latter from tilting during the pressing operation; also, to provide for expanding such rod to compensate for the wearing away of its teeth and the thread of the nut which moves it, as will be hereinafter explained.

rIhe following is a description of my invention: In the accompanying drawing, A represents the frame of a baling-press of the upright kind. B is the press-box; C, a substantial sill or foundation for the press; and D is afollower, which is arranged to move upand down in the press-box. The follower D has secured to it a follower-rod, E, which passes down through and engages with a nut, G, to which the lever or sweeps S S are confined by bolts g. The nut G is located at the lower end of the press-box B, beneath solid timbers, and it is supported upon the sill-timbers C between suitable guides, which keep it in place but allow it to be turned freely about its axis. The follower-rod is nearly as wide as the length of the follower D, but it is considerably less in thickness than the width of the follower. To the two ed ges of the central portions e e of the followerrod toothed racks ay a are bolted, the upper ends of which are rigidly secured to the follower. The racks are seg ments of a screw and their teeth correspond to the groove between the thread ofthe nut G. The central portions e c of the follower-rod are wedge-shaped and are bolted together bythe same bolts, b b, which secure in place the racks a a.. The central portion of the follower-rod consists of two or more wedge-shaped or taperring pieces for the purpose of expanding the rod and thereby compensating for the wearing away of the rack-teeth a a. This I effect by passing the bolts b b through oblong holes and secrning the upper ends of the racks a a to the follower by means of' screws c o which pass through oblong holes.

By loosening the bolts and screws and sliding the pieces e e on one another the rod can be expanded, after which the whole can be secured rigidly together again.

It will be seen from the above description that during the pressing operation separate and distinct parts ofthe flattened screw operate at each end of the follower at the same time 5 and if there is more material beneath one end of the follower than beneath the other end thereof one side of the rod will only be subjected to a greater strain than the other side, but there can be no side thrust or effort to bend the rod.

The rod is made partly of wood and partly of metal, so that it is very light and cheap and at the same time strong and durable.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, 1s-

l. rlhe flattened follower-rod E, obliquely divided, as described, and toothed racks or screw segments a a., in combination with the nut G, substantially as described.

2. The screw follower-rod E, composed of ad- `justable sections for expanding it, substantially as described.

Witnesses: GEORGE BRODIE.

J. N. CAMPBELL, EDM. F. BRowN.

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