US80848A - Samuel w - Google Patents

Description

@eine gitanas -atrnt @Hita SAMUEL WOODIIULL, OpF4 LINDEN, MICHIGAN.

Letters Patent No. 80,848, dated August 11, 1868.

, `i.OVlElifII-Jl\lT IN APPARATUS POB. SETTING AXLES 0F WHEELS.

coilge lgchnlc traint toit tlgcsc firttrrs jnteni mit, making putt tttlge 5mm.

TO WI'IOM IT MAY CONCERN:

Be it known that I, SAMUEL WOODIIULL, of Linden, in the county of Genesee, and State of hilichigan, have invented a new and useful Improvement in' an Apparatus for Obtaining the Pitch and Gather of Wagon-Axles; and I do declare that the following 1s a true and accurate description thereof', reference being had to the accompanying drawings, and to the letters of' reference marked thereon, and being` a part of this speeiiication.

The object of this invention is to construct an apparatus by which the pitch of. the arm of an axle may be readily obtained, without the operator being obliged to make calculations which are sometimes wrong, and productive of' great loss of time and labor. N

Inerder to accomplish this end, I take a straight bar, A, of any proper length, which is provided at one end with transverse bar B, while t' e '.gfc nd is provided with adjustable transverse bar I). I provide two other hars, E, longer than the bar A, to which theymale attached, one upon the top, and one upon the under side thereof, bybeing pivoted at F. These hars are properly graduated, and are provided with slots, G, and

set-screws, II, by means o'which they are adjusted and held in place. Attached to the ends ofthe bar D, and pivoted thereto, are the parallel bars I and J, whose outer sides are directly upona line with the ends of the l transverse bar I3. These bars I and .I are pivoted at their other ends to short arms, K, which are pivoted at their opposite ends to the ends oi' the bars E. When the hars F are perfectly parallel with the bar A, the outer faces of the bars I and J are also perfectly parallel with each other.

' In using this apparatus, the following direetionsrmust he observed:

First, lay the gauge down with' the pivoted ends of the levers to your right hand.

Second, obtain the dish ci' your wheel by laying n straight-edge across the rim, at the cent-re of its diameter.

Third, iind the figure on one of the hars Il that corresponds to half the height of' your wheel, in the small scale.

Fourth, move the bar E over from you, at the igurejust found, `just what your wheel dishes, and fa-stenit by set-screw II.

Fifth, now find how much your arm tapers, by measuring it close up to the swell and at the point. Get also the length from where you measured to the point. '.lhen iind the figure in the large scale representing the length oivyour arm, and at that point move the har E back towards you, just the taper of the arm.

Sixth, then you are ready to iit up the under side of your arm, and get an accurate pitch thereto for a plumb spoke. i

I do not Vclaim broadly an axlefgaugc, auch :w is shown 'in the patent to William E; Bamberger, dated November 15, 1859; but l What I claim as my invention, and desire to secure hy Letters Patent, is The arms K, in an axle-gauge, constructed as herein described and shown. SAMUEL WOODIIUI L. Witnesses:

E. E. Jeans, M. C. Joints.

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