US112682A - braymer - Google Patents

Description

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Letters maar No. 112,682, daad March 14, 1871.

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A The Schedule reifer-:e3 to in these Lettere Patent and making part: of the same.

Tol all whom. it may concern: Be it known that I, GEORGEv W. BRAYMER, of Penn Township, in thereounty of Cass and State of Michigan, have invented' a new and. useful Improvemeut in Woodsawing Machines; and I do here.-`

byrdeclare that the `following is a full, clear, and exact .description of-theconstructionV and operation 'ofthey same, reference beinghad to the annexed drawings making a part of this specification, in which- Figure 1 is aside view,land i `Fgures2and3 are detached sections. My `invention relates tothe particular combination and, arrangement of. awood-sawing machine as hereinafter described, the object being to save time and .labor and securebetter results .A `.In `the annexed drawings making apart of this specification`- v i A represents theframeiof awood-sawing machine `of' that class' iu which drag-saws are used,.and in its general` l.construction is similar' to some now inl use; i but my Improvement in the frameA consists in provid- `ing suitable bearings for `the windlas's-shaft in close proximity to the crank-shafand in groovirig the sill,

- asseen at D, for the passage of the windlass-ehain to the sheave F; `this sheaveworlrs ona pivot in the end" of saidgroo've .ata point; yerticallynndertlie center ofthe log to be sawn.

From this sheave the t c hain extends at rightr anglesto the sill alongV the under side of the log, and

" is tirmly fastened to thereaigend of said' log; and l also provide thepost G,"t.0

bow-shaped lever H.` i 1 A guide, to steady the middle of the saw when starting into the out, is attached to post G by' any suitable hinge, as seen at I also use the ordinarygulde near the outer end of which is pivoted the velthe saw, lb ut do not claim nor show it.

` The bbject ofleverHlis to hold the log steadyl lwhilebeing sawed, for which purposethe horizontal arm of said leveris supplied with the teeth a a.

` i `Thevertical` arm-of this lever is attached by' the rod j to the hand-lever lc.`

i The pivot orin` d, ou which the'lever H hangs, is

bent at one end to form a handle. The other end is prrwidedwvith` a'` shoulder on one side, which makes `it self-locking, when passed through the slot inl post G, bytur'ning the handle down, the wide way of said slot, being out erosswise ofthegrain in post G.

Several slots arecut at diliereut heights, to make the lever H adjustable to differentesized logs. i The lever-K' is permanently attached to one end of -the rocl-shaftL, VSaid lshaft passes through the lower edge of the sill, and is provided with a crank.- ann .at the other end, set in line with the handleverK. r i.

` `A sliding-bar, @this attached byone end to ,the

wrist of thiscrank, the other end4 slides in the stir- The sleevesll T, thronghlwhich the crank-shaft C passes, have'stationary bearings in the ,wood-work of the frameand serve as pivots for the lower end of the forked-lever W.

A pinion is .fastenedto the. crank-shaft 0, between `the forks of lever W, and partly seen at x an aux- 1 Hilary pinion, y, is also pivoted between the forks of` leler W; the teeth of said pinions engage with each ot er.

A large cog-wheel, Lis` attached tothe shaft of the windlass, in line with pinions x and y, but not in contact with either of said pinions when lever-"VV is in ,avertical position, but may be -put in gear with pinion ly by moving` lever W.

The rod 'u connects the 4hand-lever K with lever` W. The bar'm is used to measure the length of the stick -to be `cut olf, and may be varied by drawing up or lengthening ont the long arm of the stirrup N, which passes Ythrough the upper part oi' the sill near the post G, and `has several pin-holes for that purpose.

To operate this machine the crank-shaft C. is setV in motion by any power now in use for that purpose. Motion is given to the saw, and it is raised, and lowered,

and guided, at the outer end by old devices. VThe logto be sawn is rolled onto suitable ways, the chain 0i is attached as described, when the level Kis movedin the direction of the log until pinion y cornes in contact with the wiudlass-wheel L, giving motion to the windlass and drawing the log up to bar m, when `the lever K is instantly thrown in the opposite direction, drawing the barfm, from before the log, disengaging the windlassv and 4bringing down the toothed arm of leverH upon the log, by which it is held until 'cu't olf, when the saw' is Gain raised and the lever K thrown in the directhe log. v

' It will be seen that one person, with my machine, can hold the log, measure the length of the cut, and

start or stop the Windlass by handling a single lever,

and accomplish the saine work for which two men are usually required.

`Having thusfully described my machine- That I claim as new, Vand desire to secure tersPatent, is

The combination of the grooved-sill D, chain E,

-sheave F, post G, lever H, 'sliding-bar m, stirrnp N,

saw-guide' i, and handlever K, when constructed, arranged, combined, and operated as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 13th day of March, 1869.

` GEORGE W. BRAYMER.

W'itnesses:

S. H. WHEELER, H. MIoIIaEL.

by Lei

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