US6015A - Machine for piling saws - Google Patents

Description

UNITED sTATEs PATENT OEETOE. ,A

PREsBERY NORTON AND FRANKLIN D. GOTTLEQOEl TIsBuRY, MAssAoHUsETTs. l

MACHINE Eon FILING saws.

Specification of Letters Patent No. 6,015, dated January 9, 17849:.

To all whom may concern:

Be it known that I, PRESBERY NORTON and FRANKLIN D. COTTLE, of Tisbury, in the county of Dukes and State of Massachusetts, have invented a new and useful Apparatus for Filing and Setting the Teeth of Saws; and we do hereby declare the fol-` lowing to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making 'a part of this specification, in which- Figure l, is a. perspective view, and Figs. 2, and 3, are representations of the same detached.

Similar letters indicate like parts in all the gures.

The saw V, to'be sharpened, is placed be` tween the clamp pieces A, and secured between the same by the clips R, R. The

clamp pieces A, are supportedbetween the standards M, M, M, rising from the platform T, between which they can be moved freely to the right or left.

B, B, are standards rising above the saw, with their upper ends connected by a set screw C, the object of which is to retain the saw in its proper position while it is operated upon by the file.

H, is a handle or holder to which theifiley for operating on the saw is secured as follows: e, e', are adjustable heads having horizontal apertures g, g, which receive the ends of the file; the head e, works in a vertical mortise through H, and the head e', works in a vertical slot N, near the end of H; O, is a set screw passing through the end of H, into the slot N, having a collar on its inner end which presses against the head e: by turning the screw O, in one direction, a file can be secured between the heads e, e', and by turning it in an opposite direction the heads will be separated and the file can be removed.

i, z', are screws rising from the heads e, e, by which they can be elevated and depressed by means of the nut-s f, f, as represented in Fig. 2. The file holder H, works in mor.

the pointl d, desceding from the extremity I of the spring arm m, projecting fromone of the standards Gr, taking into one of the apertures in the curved scale'pl'ate K, let into the platformT. The file handle H, rests and' slides upon the upper ends of the adjustable metallic plates J, vJ the bearing plates J, J, are let into the sidesvofthe standardS G, G, and` secured in any desired position by means of the set screws t, passing through slots in the plates, into nuts let into the standards. A

By means of the adjustable bearing' plates J, J, one end of the file can be elevated and the other end depressed, by which-means the le can be operated at any angle of inclination that may be desired.

The movement of the clamp A, upon the platform T, is regulated and adjusted to suit the space between the teeth of the saw to be sharpened, and set by means of the horizontal perforated gage plate L, secured zo Y to one side of the base of the clamp, in com-y t of the apertures inthe plate L, and retains Y the same, (in combination with thestandards B, B,) in the proper position for the file to operate upon the saw and for the projections F, F, to` set theteet-h. The teeth of the saw are set by means of the elastic .metallic standardsD, D, having projections F, F', on their inner sides, near their upper ends, (as represented in Fig. 3,)r and being connected by a set screw E. The projection F, has an inclined recess ct, on its inner end,` and the projection F, has an inclined face` v3,' yonv it-s inner end'` corresponding there! with. The faces of the projections F, F,

are suiiicient-ly inclined to give to the saw teeth their properposition, by turning the set screw E, and closely embracing the teeth between the same. The projection F, is se- Cured to its standard by means of a slot and set screw in such a manner that it can be elevated or depressed to correspond With the height of the saw teeth placed in the clamp. One half the teeth of a saw-every other one-are iirst set in their proper positions, the saw is then taken out of the clamp, and its position being reversed and 'again secured in the clamp, the other'half of its teeth are set in the saine manner. Y

We generally plaee friction rollers in the bas'e ofthe saw clamp for thel purpose of giving'to the same greater freedom of Ino-` tion upon the platform.

Having thus fully described our apparatus for filing and setting the teeth of saws,

whatwe claim as our invention and desire to secure 'by Letters Patent, is-

The combination and arrangement of the operating lile` handle H, the adjustable

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