US97823A - Improvement in machine for polishing- wood - Google Patents

Description

` ,'L'o all whom it may concern.:

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WILLIAMF., eraan,

Letters Patent No. 97,823, dated December 14, 1869.

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IMPROVEMENT IN' MACHINE FOR POLISHING- WOD.

The Schedule referred `to in these Letters Patent and making part of th same.

Be it known that 1,W1LLIAM F. SPEAK, oi Woosfter, inthe county of Wayne, and State of Ohio, have invented certain new aud'useful Improvements in Rnbi hing and Polishing-Machines; andI do hereby declare f `that the following is a full, clear, and exact description of -iny inventionreierencebeing had Vto the aci companying drawings, forming a part oi this specifii i cation, and to the letters of reference marked thereon,

`of which drawings- Figure 1 is an elevation ot' my improved machine.` Figure 2 is a plan of the same. Figure is'a detail, side, and end elevation ofthe `rubbing-block.

The nature of my ,inventionI consists in certain improvements in the construction of machines for rub bing and polishing cabinet-work, stone, marble, or'any article requiring a continued rubbiugoveralarge surface, either for the purpose of smoothing or polishing `said surface, said improvements consisting in the novel combination of mechanism, by means of which I am enabled to rub the surface `to be polished by a rubber moving in straight lines on any portion vot' said surface, and in any desired direction, thus avoiding the necessity of rubbing across the grain of the material,

i or of forming curvilinear scratches on the surface, which would be detrimental to the polishing, and saving the severe labor and heavy expense ofthe old inode of hand-polishing, besides peribrming theopew lation in a quicker and better manner.v

To enable others skilled in the art to make and use my invention, I will proceed to describe itsk construc- `tion and operation. v i In th accompanying drawings, which represent one construction for my improved machine- 4 A A are the main side-pieces, which are united by i cross-pieces B B, and are supported on legs, as shown.

The standards C G are secured in the pieces A A,

` i and are united by the cross-pieces I) t, 'as shown, and

the arm E is fixed' in the cross-piece D;

The shaft u is arranged in Aboxes in the cross-piece B and arm;` E, 'and on it is ixedrthe driving-pulley H, `byy which fpower is applied to the machine, and the `long drivingdrum G, by which the powerisitransmitted to the first pulley K. i Y,

The shaft J is iixed between the cross-piecesD and V `t, and on it is arranged the loose double pulley K, which receives motion from the belt F, passing around it and the drum Gi 4 i v v,

The arm'sNN/-are journalcdon .the shaft J, and

"are united, bythe rod I, with jam-*nuts at its ends, as

shown. i The shaft 0 `is xed in the ends of the arms N N, and on it is journaled the loose double pulley P, which is driven by a belt, M,passing,arond it and the pulley K.

'lhe arms R- lt are jonrnaled on the shaft O, and arel united by the rod S, provided with jam-nuts at its ends, as shown.'

The` crankshaft U 'V is journaled in thc ends of the arms lt It, and on it islixed 4the pulley T, which is driven by the belt Q, passing around it and the pulley l.

" rIhc arm lV is secured by a nut at the lowerend oi the crank-shaft U V, and has the slide-rod X attached to its end, the outer-.endof said slide-rod being supfported by therodj, which is secured by jam-nuts in lthe arm Y, which is secured, by a nut, on the crankshaft U V. 4 Y lhe arnr fr is held by a nut, I), on the shaitJ on the `cross-piece l), and the slide c is supported by a crosspin, d, on said arm. y

A rivet, c, connects the swivel f with the slide c, and a cord, h, passes around'a p in, y, in said swivel and the al'nl Y, thus brming a support for the mechamsm.

The slide i is arranged on the slide-rod X, and Vhas a pin, fr, at one end, on which is pivoted the connecting-rod Z, which'unites the slide 'ito the crank Y of thecrank-shatt U V.

The rubbing-block p has the bolt-plate nl, fixed on itsA upper side, through which passes the bolt k, the head n of whiclrworks in a hole under the plate m in the block p, and on which is the adjusting-nut l.

lhe upper end of the bolt It issecured in4 the slide i, so that the reciprocating movement of said slideimparts a corresponding movement to the block p.

The clamp Il is secured, by a set-screw, on the shaft J, under the arm N, and thus serves to support the mechanism K M P Q l VZfi, and, consequently, the rubbingfblock p, at any desired height above the pieces A A, on which the article to be polished is laid, the belt F moving up or down the long drum G, as the pulley K is raised or lowered, as is readily seen.

From the `foregoing description, it is evident ithat by applying the power by'a belt over the driving-pul-v ley H, a reciprocating movement will be commnuicated to the rubbing-block p, (the bottom of which may be covered with cloth, leather, or any suitable materiau) and that by grasping the rod j, the block p maybe turned in any desired position 'over 4the article to be polished. i

By tightening the nut l on the bolt k, so aste bring the head n upto the plate mf, the angular movements i of the block j), with respect to the bolt It, may belimited as desired, to conform to the surface of the article being polished.

Then my machine is to have a permanentposition in the shop,rthe lower part A BA B could be dispensed with, the standards G 0 and end of shaft u being arranged in the floor, as is readily seen.

The drum G could also be dispensed with, and the pulleyK be clamped to the shaft J, which would then he arranged to revolve, and to which the power would he directly applied, but I consider the -arrangement shown as the most desirable.

Where only a limited lateral movement of the rubhing-block p is required, the pulley P and arms E R could be dispensed with, the crank-shaft U V and pulley T taking the place of the shaft O and pulley Pf. or if a more extended range of movement were required, other pulleys P, with arms R R, could be introduccd between the pulley Pand crank-pulley T, shown in drawings, in a manner readily seen.

It is also evident that gear-wheels could be used in place of the pulleys K I T, said gears being leither bevel or spur-gears, and communicating motion one to the other, through shafts secured on the intervening arms N R, in line with the shafts J O U, and having bevel-gears at their ends, or by spur-wheels, secured on said arms, according as bevel or spur-gears were used, in a manner easily understood by any mechanic; but I prefer the pulleys and belts to the gearing, as there is much less expense and-weight in the machine, and less liability to accident, in case the rubbing-block meets with any obstruction.

Having thus fully described my invention, I do not claim therein as new the combining of three or more pulleys, by arms journaled on the shafts of said pul-y :meer

leys, for the purpose of obtaining an independent movement of the ,end pulley, nor do I claim the use of a long driving-drum, in combination with a sliding driving-pulley, except in the combination of mechanism here shown, nor do I claim the use of a crank and connecting-rod, in combination with a rubbing and polishing-block, as these features have been before shown; but

What I do claim herein as new, and of my invention, and desire to secure by Letters Patent, is

1. The combination of two or more pulleys or gearwheels K l? T, provided with a crank, V, on the shaft ofthe last pulley T, connecting-rod Z, and slide-block if, with rubbing-block p attached, the several parts being constructed, arranged, and operating substantially as and for theLpurpose specified.

2. The combination of the rubbing-block p, provided With the bolt-plate m, threaded bolt k, with head n and the adjusting-nut l, the several parts being arranged substantially as and for the purpose specified.

As evidence that I claim the foregoing, I have hereunto set my hand, in the presence ot' two witnesses, this 5th day of October, A. D. 1869.

` WM. F. SPEAK.

Witnesses: Y

J. H. CARR, S. R. BoNnNrrz.

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