US290531A - Said boggs assigjtob to said powell - Google Patents

Description

(No Model.)

T. L. GARLEYE L. P; POWELL,& H H. BOGGS.

SET WORKS FOR SAW MILLS.

Patented Dec. 18, 1883.

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TIMOTHY L. GARLEY, LOUIS F. POYVELL, AND HENRY H. BOGGS, OF SYRA- CUSE, NEW YORK; SAID BOGGS ASSIG-NOR TO SAID POYVELL.

SET-WORKS FOR SAW-M l L LS.

SPECIFICATION forming part of Letters Patent No. 290,531, dated December 18, 1883.

Application filed February v13, 1883. (No model.)

To aZZ when it may concern.-

Be it known that we, TIMOTHY L. OAKLEY, LOUIS F. POWELL, and HENRY H. Boecs, of Syracuse, in the county of Onondaga, in the State of New York, have invented new and useful Improvements in Saw-Mills, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention consists in certain novel devices connected with the log-carriage and head-block of a saw-mill for the purposeof conveniently, expeditiously, and accurately setting the log to the line of cutting and auto matically determining the amount of lumber obtainable from said log, all as hereinafter more fully explained, and set forth in the claims.

In the annexed drawings, Figure 1 is a plan view of a log-carriage provided with our-improvements. Fig. 2 is a side elevation of the same. Fig. 3 is a vertical transverse section taken on line :19 as in Fig. 1. Fig. his an enlarged end view of the hcad-block'aud the sliding standard mounted thereon. Fig. 5 is a vertical transverse section of the same, showing more fully the arrangement of the indicator in relation to the graduated scale on the base of the sliding standard. Fig. 6 illustrates the arrangement of interchangeable gages ap plied to the sliding standard for determining the number of boards or planks of different thicknesses obtainable from the log mounted on the head-bloclr, and Fig. 7 is an enlarged top view of the stop which limits the movement of the mechanism by which the log is set to the cutting-line of the saw.

Similar letters of reference denote similar parts.

A represents the log-carriage, mounted on firm track-rails R R, arr. nged at one side of the saw, and parallel therewith, in the usual manner.

B denotes the head-bl0ch rigidly secured to the top of the carriage, andD is the standard or stake, againstwhich the log resting on the head-block is clamped by the usual dog, E.

Said standard or stake is provided with a prolonged base, D, by which it rides on the headblock B, and which is fitted on the head-block tor,

in such manner that while firmly supporting the standard it allows the same to slide longitudinally. The base D is provided on its under side with a rack, a, extending the length thereof.

F denotes a line-shaft arranged lengthwise of the carriage, and mounted in suitable bearings on the same, said line-shaft being provided with pinions c c, which engage with the racks a of the respective standards D.

e is a counter-shaft arranged at right angles to the line-shaft F, and mounted on a suitable support, b, secured to the carriage A. The end of the shaft e adjacent to the carriage is provided with a beveled pinion, j, which meshes'into a beveled gear, cl, attached to the line-shaft F.

To the outer end of the shaft 0 is attached a ratchet-wheel, g, and immediately back of this a lever, in, is hung or fulcrumed on the shaft e, which lever is provided with a pawl, a, adapted to engage the ratchet-wheel g.

h represents a semicircular rim arranged concentric with the shaft 6, and secured stationary on the support b, close to the rear of 7 5 thelever m. lhe rim h is provided with a concentric slot, 8, through which projects a stud-pin, K, which comes in the path of the lever m and serves as a stop to the movement of said lever, said stud-pin being adapted to be moved along the slot 3 and shouldered against the outer side of the rim h, and provided at the opposite side of the same with a screw-threaded shank, on which is a nut, r, by means of which the stop or stud pin K can be-clamped in its position. That portion of the stud-pin which lies in the slot 8 is angular, andon the end of said portion isfitted awasher, a, from which projects a pointer or indica- Z, which reaches to the periphery of the rim h, said periphery being provided with a graduated scale, 7;, for the purposehereinafter explained.

' n represents a dog connected to the foot of the rim It, or other suitable firm support, said 5 dog being adapted to be thrown into engage ment with the ratchet-wheel 5 and hold the same. while swinging back the lever m to obtain a new hold on the ratchctwheel for turning the same. The turning of the ratchet- I00 wheel fixed to the shaft e, as aforesaid,

, causes the pinion f to impart rotary motion to the line-shaft F by the medium of the gear d,

and the rotation of the line-shaft transmits a rectilineal movement to the sliding standard D by means of the pinion c engaging the rack a on the base of the standard. Thelog to be sawed,

being mounted on thehead-blocks and clamped on the standards, is thus carriedby the aforesaid movement of the standards toward the line of cutting, the distance of such movement depending on the stroke of the leverm, and the latterbein g controlled by the stop K. The scale on the rim h is so graduated that when the'le'ver m is arrested by the stop Kthe indicator Z of the latter will point to the scale mark or number corresponding to the'number of inches or fractions .of inches in the distance moved by the sliding standard D; hence by setting the said stop so as to bring its indicator Z in coincidence with the number on the scale 2' corresponding to the number'of inches or fractions of inches in the thickness of the lumber to be sawed, and then carrying the lever m from its place of rest up against the stop K, the log will be moved outward on the headblock the necessary distance to cause the saw to cut the lumber of the desired thickness. A handle, H, is connected to the ratchetwheel, by means of which handle said wheel can be turned in a reverse direction after the pawl n and dog 1) have been thrown out of engagement therewith, said reverse motion retracting the sliding standard D, to admit of theadjustment or replacement of the log on the head-block.

L represents a scale or board measure connectedto the side of the base D of the sliding standard, and M is a pointer or indicator attached to the head-block. The scale L is so graduated that the zero-point thereof is in coincidence with the indicator M when the face of the standard or so-called stake Dis in range with the cutting-line of the saw U, said zero-point being therefore at the rear or trailing end of the standard-base. This scale may be divided either into inches and fractions of inches, and thus show the exact thickness of the stock of log left after the previous cutof the saw, or said scale may be-divided into spaces equal to one or more inches, including the sawkerf, and thus show the actual number of boards or planks obtainable from the stock of log left on the head-block.

In order to obtain all of the aforesaid'conveniences, we employinterchangeable gages in the form of a bar having differently graduated scales, as aforesaid, on two or more of its sides. Said bar is to be arranged along the side of the standard-base D, and to be pivoted at its ends, or to be arranged rotary on its axis, so that either of the scales may beturned toward the indicator M, as illustrated in Fig. 6 of the drawings.

It will be observed that by means of our automatic lumber scale or measure L the operator is enabled to ascertain at a glance the number of boards or planks he can obtain from the log after it has been squared, and

the measuring is effected simultaneously with the setting of the log and by the manipulation of one and the same lever.

Having described our invention, what we claim as new, anddesire to secure by Letters Patent, -is I 1. The ratchet-wheel g, semicircular rim 71,

provided with the scale 1' and slot 8, the stop K, provided with the clamping-nut r, and-the lever m, provided with the pawl n, in combination with the shaft 0, provided with the pinion f, the shaft F, provided with gear d and pinion c, the sliding standardor knee provided with the rack a and scale L, and the indicator M, attached to the head-block, all combined and operating conjointly, substantially in the manner specified and'shown. I

2. In combination with the sliding standard provided with the rack a, the shaft F, pro- Vided with the pinion c and gear d, the shaft '6, provided with the pinion f, and with the ratchet-wheel g, the semicircular rim 7:, :provided with the scale t and with the slot *5, the stop K, provided with the clamping-nut r and indicator Z, and the lever in, provided with the pawl n, all combined and'operating substantially in the manner and for'the purpose shown and described.

I11 testimony whereof we have hereunto signed our names and affixed our seals, inthe presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 9th day of February, 1883.

TIMOTHY L. OAKLEY. n s.] LOUIS F. POWELL. [L.S.] HENRY H. BOGGS.

\Vitnesses:

FREDERICK H. GIBBs, WILLIAM G. RAYMOND.

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