US784524A - Rawhide bushing. - Google Patents

Description

No. 784,524. PATENTED MAR. '7, 1905.

F. LATULIP.

RAWHIDE BUSHING.

APPLICATION FILED JULY 2,1904.

WITNESSES. 1 6' mg.

NC. 784,5Q4i.

NITED STATES fatented IVIarch '7, 1905.

PATENT OEEIcE.

FRED LATULIP, OF SYRACUSE, NEW YORK, ASSIGNOR TO SYRACUSE RAWVHIDE MANUFACTURING COMPANY, OF SYRACUSE, NEW YORK,

A CORPORATION OF NE\V YORK.

RAWHIDE BUSHING.

SPECIFICATION forming part of Letters Patent No. 784,524, dated March 7, 1905.

Application filed July 2, 1904. Serial No. 215,104.

To all whom it may concern.-

Be it known that I, FRED LATULIP, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Rawhide Bushings, of which the following, taken in connection withthe accompanying drawings, is a full, clear, and exact description.

This invention relates to improvements in rawhide bushings to be used as self-lubricating bearings for shafts, loose pulleys, and for analogous uses.

My object is to avoid excessive waste of time, labor, and material in the construction of the bushing by making said bushing from a continuous sheet of rawhide which is creased or scored in parallel lines and at regular intervals, and the adjacent intervening portions are folded upon and adhesively secured to each other.

Other objects and uses will appear in the following description.

In the drawings, Figure 1 is a perspective view of my improved bushing. Fig. 2 is a perspective view of a portion of the crimped or corrugated sheet of rawhide from which the bushing is formed. Fig. 3 is an end view of the bushing, shown as partly formed in full lines and the remaining portions or ends extended.

Similar reference characters indicate corresponding parts in all the views.

In forming a completed or finished bushing, as A, a strip, as a, is out from the hide of such width as to correspond as nearly as possible to the length of bushing required and of sufficient length, if possible, to form the entire circumferential wall of said bushing without break. This strip is then creased or scored in transverse lines parallel with the axisof the bushing and at'such intervals as to form two or more series of folds or corrugations, as 1 and 2, those of one series, as 1, being of greater depth than and alternating with the folds or corrugations 2 of the other series. These folds 1 determine the thickness of the walls of the bushing, and the folds 2 are united to and are interposed between the adjacent sides of the folds 1 near their outer edges, so that when the folds of both series are pressed together the inner edges of the adjacent folds 1 are in contact, while the outer edges of said adjacent folds 1 are held apart by the folds 2, which causes the compressed sheet or strip to assume a cylindrical form. Either before or during the operation of compression an adhesive, as glue, is applied to the contiguous faces of the sides of the folds, so that when said folds or corrugations are subjected to pressure their sides will be adhesively secured together, and after the adhesive is allowed to set the sleeve is placed upon a suitable mandrel and trued up and finished to the required size.

These bushings are gathered upon a suitable form, such as a shaft of such diameter as may be required for the inner diameter of the bushing, in which instance an outer case or form may be used to keep the folds in place while being pressed together.

The method or means employed in forming these bushings forms no part of my present invention, and therefore it is unnecessary to illustrate any means for this purpose.

It will be seen that this bushing may be formed without waste and without destroying the integrity and natural tenacity of the hide. It is preferable to use a continuous strip when possible; but for the larger bushing s a series of strips may be adhesively secured together end to end and folded in the manner described.

In some instances it may be necessary to place two or more of the deeper or shallower folds together or to deepen the shallower folds or to lessen the depth of the deeper folds in order to give the best results for various diameters of bushings, and I do not wish to limit myself to the alternate arrangement of single folds of each series.

Having described my invention, what I claim, and desire to secure by Letters Patent, is I 1. A shaft or pulley bushing consisting of a sheet or strip of rawhide gathered into a 5 series of folds adhesively secured together.

2. In a bushing for the purpose described, 4. A bushing consisting of a strip of rawa strip or sheet of rawhide gathered into a hide gathered into folds and forming a cylseries of folds arranged face to face in the inder, the folds being adhesively secured toform of a cylinder and adhesively secured gether. r 5

5 together. In witness whereof I have hereunto set my 3. A bushin consisting of a strip of rawhand on this 21st day of June, 1904. hide athered into folds and forming a cy inder? some of the folds being of less depth FRED LATULIP' than others to compensate for differences be- Witnesses: I 10 tween the inner and outer diameters of the H. E. CHASE,

bushing. HOWARD P. DENISON.

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