US371211A

US371211A - n naudey

Info

Publication number: US371211A
Authority: US
Publication date: 1887-10-11
Anticipated expiration: 1904-10-11

Description

- (Np-Qlodel.) 3 Sheets-Sheet 1.

N. NAUDEY.

v SAWINGMAGHINE. No. 371,211. Patented Oct. 11,1887.

045 Z'aa i 1 Jnremi'm (No Model.) 3 Sheets-Sheet 2.

N. NAUDEY.

SAWING MACHINE.

No. 371,211. Patented Oct. 11,1887.

fi z/ 5525..

3 Sheets--Sheet 3.

(No Model.)

N. NAUDEY.

SAWING MACHINE.

Patented 001;. 11, 1887.

UNITED STATES PATENT OFFICE.

NICOLAS NAUDEY, OF oUsE, nouns, FRANCE.

SAWlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 371,211, dated October 11, 1887. Application filed June 11,1887. Serial No. 241,041. (No model.) Patented in France October 2, 1886,No.178,7'22.

To aZZ whom it may concern.

Be it known that I, NICOLAS NAUDEY, a citizen of the French Republic, residing at Cuse, Department of Doubs, in the French Republic, have invented certain new and useful Improvements in Sawing-Machines, (for which I have obtained Letters Patentin France, No. 178,722, bearing date October 2, 1886;) and 1 do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains tomake and use the same.

Referring to the drawings, Figure 1 is a front elevation, and Fig. 2 a side elevation, of my improved sawing-machine. Fig. 3 is an enlarged side view of one of the bearings for the rock-shaft, showing said shaft in end elevation. Fig. 4 is a detached elevation of the upper portion of the frame, showing the bearings for the rock-shaft in section. Fig. 5is an enlarged side elevation of Fig. 4; Fig. 6, a transverse section of the rock-shaft, showing the means of securing the counter -weight thereto. Figs. 7 and 8 are side views of a portion of the upper end of the frame, showing the'different positions of the counter-weight in sawing; and Fig. 9 is an isometric view of a portion of the rock'shaft.

This invention relates to improvements in sawing-machines, and has forits object to relieve the operator as much as possible from the labor inherent to the operation of sawing; and it consists in the construction of the machine and in the combination of the parts thereof, substantially as hereinafter described, and as set forth in the claims.

The frame F of the machine has, as shown, the general form of an easel, the shorter legs or braces, F being hinged atf to the longer legs or standards, F, so as to adapt the frame to be folded together when not in use. The shorter legs or braces, F are con nected together by means of cross-bracesf and the standards or legs F are connected together by cross braces f. The cross-braces f are further strengthened by a third or central standard, F, that also affords a more stable bearing to the frame and renders it less liable to sway or rock with the motion of the saw, or in a direction at right angles thereto. A fourth vertical brace, F, connects the upper and intermediate crosspieces f. To each standard F and F and to the left-hand standard, F, is secured a cheekpiecaf, that has a plurality of holes or sockets for the reception of a restbar, It, said holes or sockets being so formed that the rest bars R will lie at an angle to the standards for the reception of the log of wood, as more plainly shown in Fig. 2, said rest-bars being adjustable vertically on the cheek-pieces, according to the thickness of the log, by placing them in one or the other of the holes or sockets of the cheek-piecef.

Upon a bolt or pin, p, (shown in dotted lines in, Figs. 1 and 2,) secured to the standards F F, is pivoted a toothed segment-lever, 0, provided with a hand-hold, c, for holding the log of wood on its supports.

To the upper end of each standard F are bolted bearing-blocks B, so constructed as to form an ellipsoidal hearing, I), for the correspondingly 6r cam shapedjournal s of a rockshaft, S, that is preferably square in cross-seo- 'tion, as more plainly shown in Figs. 3, 6, 7,

and 9. About centrally of the cross-shaft is secured a weight, XV, so constructed that its center of gravity, when the weight is in a vertical position, will coincide with the longer axis of the journals 8 of the shaft S. As shown in Fig. 6, the weight is secured to one side of the shaft by means of an eyebolt, D, that extends through said shaft and embraces the stem or shank w of the weight, and by means of a nut, d, that works on the screwthreaded end of said bolt.

It will be seen that by the described construction of the journals and journal-bearings of the shaft S said shaft has practically knifeedge bearings, so that the friction between the shaft and its bearings is reduced to a minimum. It will further be observed that by arranging the weight Wso that its center of gravity will lie in the plane of the longer axis of thejournals s of the shaft S the deadcenters of the latter are not only readily overcome, but a comparatively small amount of power is required to rock the shaft in its bearings. Further than this, the weight W is so constructed that it will exert its greatest power during the effective stroke of the saw-that is to say, when the saw meets with the greatest resistance to its passage through the wood- ICO thereby materially reducing the power necessary to the effective work of the saw.

From the shaft S is suspended a yoke, Y, by means of a bolt, g], on which said yoke is revoluble, so as to permit the cutting on lines other than straight lines, or lines at right angles to the longitudinal axis of the shaft. The arms of the yoke are braced together by means of braces 3 y", the lower brace, y being provided with perforated lugs or ears y (shown in dotted lines in'Fig. 1,) to which the buck.

, saw-frame is connected by means of a link, y",

The brace to which the link is connected, is adjustable vertically in the yoke, the arms of which are provided with holes 1', Fig. 2, for this purpose.

From the above description the operation of the machine will be readily understood, and needs, therefore, no further elucidation.

Instead of a bueksaw, any other form of crosscut-saw may be employed.

Having now particularly described my invention, what I claim is 1. In a sawingmachine, the combination of a rock-shaft supported by and working on knife edge bearings, with a saw and a rigid yoke, to one end of which said saw is pivoted, and a pivot-bolt connecting the other end of the yoke to the shaft, substantially as and for the purpose specified. f

2. In a sawing-machine, the combination of the following instrumentalities: a frame composed of long and short legs pivotally connected. a rock-shaft supported by and working on knife-edge bearings at the upper end of the longer legs of the frame, a counter-weight secured to the rock-shaft, a rest for the wood to be sawed,adj ustable toward and from the rock shaft on the frame, a saw, a yoke to one end of which the saw is pivotally connected by means of a link, and a bolt secured to' the rock-shaft on which the other end of the yoke is pivoted, substantially as and for the purposes specified.

In testimony that I claim the foregoing I have hereunto set my hand this 25th day of March, 1887.

NICOLAS NAUDEY.

W itn esses:

R0131. M. HOOPER, LEON SOHMITTBUHL.