US68624A

US68624A - Joseph hale

Info

Publication number: US68624A
Authority: US
Publication date: 1867-09-10
Anticipated expiration: 1884-09-10

Description

gleitet taies @stent @ffice JSEPH HALE, OF SMERVILLE, M A SSGHUSETTS.

Letters Patent No. 68,624, dated September 10, 1867. l

IMPROVEMENT IN WASHBRS.

TO ALL WHOM I'll MAY CONCERN: j

Be it known that I, JOSEPH HALE, of Somerville, in lthe county of Middlesex, and State of Massachusetts,

have invented an improved Washer for Carriage-Axles, etc. and I do herebydeclare that the followingtaken l l in connection with the drawings which accompany and form part of this specification, is a `description of my invention suiiicicnt to enable those skilledin the art to practise it.

To those familiar with the use of wheeled vehicles, especially such as are employed for pleasure and in the conveyance of persons, it is well known that washers are placed on the journals of the axles to preventend` wise movements ot' the wheel-hubsthereupon, to deaden or muiile the noise consequent upon such endwisc `rnove'tnent, if any there be, and to allow a slight elasticity in the connection longitudinally of hubs with their axles. For such purposes it has been common .to employ leather washers, and it is well known that these wear cnt rapdly, and also soon become permanently compressed and hardened, so that where they are used the wheels soon get an endwise play, which makes a disagreeable rattle in the movement of the vehicle.

Now, in my invention, I make the'washers for the purpose named-of wood, with the grain substantially in thc direction of lines concentric with the periphery of eacl. washer. In the manufactureof such washers I" proceed as follows: First, I prepare a strip of any straight-grained tough wood, hickory by preference, rectanguiar in cross-section, which is of an area equal to a radial cross-sectional area of the washer to be constructed.

This strip I soften by steaming or boiling, and then wind it upon an arbor, which I prefer `tounakea screw, j winding the strip of wood into the spaces between the threads of the screw with a strip of thin metal or a chain, upon the outer surface ofthe wooden strip; this process preserving the rcctangularity in cross-section of the wooden helix so made, and preventing the wood from slivering, splitting, or breaking. The arbor, with the wood secured thereupon, is then left to dry, which drying may be `accelerated by the application of heat,

and when dry and set the wooden helix is screwed off from its arbor, and is sawed apart,iso thateach section of the lhelix will, by a little deilection, form a circular washer, with its sides in planes. 'Ihc sawing may be so., j

performed that the ends of the wood in the washers will abut, and the joint so made may be in radial lines of the washer, or the joint may be inclined, bevelled, or scarfed, if desired. In some instances washers maybe required in which a space is left between the adjacent ends of the wood, and this may be accomplished in `the cutting apart of the wooden helix. In the drawings- Figure 1 shows in perspective a helix of wood, formed as and for the purpose described. l

Figure 2 shows in perspective a wooden washer of my invention, with the grain substantially `concentric with the periphery of the washer Yformed lby softening, bending, and drying, and with the adjacent ends of `the wood in Contact upon ajoint plane, which is represented as scat-fed or bevelled.

Figure 3 shows my improved washer in plan, with the adjacent ends not in contact. Experiment has proved that these washers take up the oil which is supplied to the axle', and glaze over and wear smooth, while they have a slight but valuable elasticity in yielding to cndwise strains ou the `hub,

and are equally eli'icient with leather in deadening or mutlling noise or rattle, while the fricticnjbetween the parts is reduced to a minimum. 4

These washers, besides being used with wheels and axles as described, may b`e similarly employed in' connection with other rotating bodies. Whenmade with the adjacent ends not abutting, as in lig. 3, the washer may be compressed into a space of somewhat lessr diameter than its normal one.

I claim for employment with wheels and axles, or similarly, washers of wood with the grain, substantially as described, when formed by softening, bending, and drying.

Also the process described for forming washers of wood-by bending a strip into a helix, and then subdividing it substantially as described. l

' JOSEPH HALE.

Witnesses:

J. B. CROSBY, L. H. LATIMER.