US12806A - Asstgnor to samuel green - Google Patents

Description

i To all wtQmc'tmai/*cbncem i Be it known that LNATHAN AMES, of Saugus, `in *the countyof `Essex and` Comi monwealth of Massachusetts,haveinvented a new andgilseful Machine for Polishing and.'` i, Figuring `Morocco, o'f which the` following n is a full and` exact" description, reference loe` ing had to the `accompanying drawing, letters, and figures. i

i two inches fto a foot@` i i passing betweenthe two.

' bearing against, V.

f P, is aycoil spring, "against `the underside of" F, F, while its i lower end rests on a broadnut screwed on i a bolt, fast in, O, O, andpassing up through i the center of the spring nearly to F, F. By

power. i i

N, are bolts" passing .freely through HUNrrEDsr ATEs PATENT oFEioE.

"@@NATHAN AMEsoE saueus;MAssAcHUsETTs, AssiGNoR rro SAMUEL GREEN, or l H c LYNN, MAssAoHUsE'r'rs.

` l fivrAcHINEFoR PoLsHING LEATHER AND ivronoooo.

"ffspecicatonorLetters Patent No. 12,806, dated May 1, 1855.

i *The `figure is a perspective of the machine, being drawn ona scale of about i, ,l A A, and B, B,=B, Bl Bi B', represent the frame, cast in onecsolidpiece ofironr l isawooden block i, `C, C, isja heavycastiron'y-wheel,` the aXle of which, beingfastiin the. wheel, turns xingthe box, D. if y u. Efisa crank bywhichfthefmachine `may.

be operated by hand. @rin place of,E,ra i Lpulley 1maybe used? for` operating thema- `chinebyfpower.1

y "HQH, is aV cast-iron arm, swinging freely on thenter of thefshafen i, to which it is keyed at K,`"""an`d keptff'rom any lateral fimotionbythe -bracesfJg J, orxby having a wide bearing ontheshaft.` l i i turningonfthe pin, Ggf/in the wheel C, C; the other end restingon the pin, L.

M, is acap, boltedto F, F,the pin, L,

O, 0,is a plece of cast-iron, to the lower partof which, (U), the polishing orfgur- `ingtool, R, is fastened, invarious ways, (or

asrepresented the figure, by the clamp Sv, and the bolt, S, S. ,screwed into U.)

`V, `is a projection `of the arm, F, F, through which, at its lower extremity, a

` hole is made so large asto admit of the bolt, VQ, playinga little, lasfthe ball,fR, rises or falls. A nutis screwed on the end of Q,

its upper end bearing means of this nut is applied more or less pleasure.

machine.

` partof the connecting arm, F, `ed and` combined substantially as described, so that the machine, partaking of the nature T,T, is an ellipsoidal table, conforming exactly to'the orbit 4described by the ball, l

lRin the lower half of its revolution.

l, 2, 3, 4, represent a wooden extension of thetable, T, T, on which the skin is laid and moved along.

' person turning the crank, E. Or as the machine moves with but littlefriction, it may be driven by the person who holds the skin, he moving, the skin along with one hand,

and pushing the lower end of, H, H, with the other.

By turning the wheel in the direction indicated-by the arrow, it will be seen that in onehalf of its revolution, the ball, R, will .be raised up from the table,T, T, as represented in thefigure; while in the other half, R-willpass as near to the table as may be desired without touching it. So far as the motion and raising of the ball, are concerned,it is the same as though the piece, to

which the ball, R, is fastened, were a fixed part of the arm, F, F. Hence it is plain that the ball will be raised in its backward motion, without `joint, force, friction or noise.

The' machine moves as easily and silently as a wheel revolves on its axle, and as rapidly as may be desired.

Any of the balls for figuring and polishing, in common use, are also used in this What I claim as my invention, and desire to secureby Letters Patent, is y a The above described method of raising the figuring or polishing tool, R, while pass-- ing back over the table, T, T ,-z'. e. by making the tool-holding hand, in e ect, a Xed constructboth of areciprocal and rotary motion, may operate, without joint, noise, or friction, as easily and silently as awheel revolving on its aXle, and as rapidly as may be desired; and at the same time, moving in a uniform ellipsoidal orbit over the table, without touchingv it.

i NATHAN AMES. In presence of- ABNER C. GooDELL, ELLIOTT C. PIERCE.

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