US97621A - Improvement in sawing-machines - Google Patents

Description

'To whom, itnagjfcmicera:

"is uneven", er other trees in the-way.

jmade in this form, and so.` attached that lateral movemild-simi As AlvrUEL FLETCHER,A or HOLLIS, NEWl HAMPSHIRE.

" s l-Leaefrspamuvo. 97,621, amamantar?, 1ste.`

IMPROVEMENT IN SAWINGQMACHINES.

" l i `The `Schedule referred to in these Letters Patent and making'part of `the same vBeit knownthat, SMUEUFLETOHER, of Hollis,

in the countyiof Hillsborough, and State of New e i Hampshire, ,havejnvented a sawing-Machine for Felling Trees; and I `hereby declare that the followring is a fulland exact descriptibn of the same, and I refer tothe accompanying drawing, and to the letters of referencethereonpas Iparts of the specification, of `Which- The drawing gives` alperspectis-'e `view ofv the machine, whenrapplied to the tree and ready for operating, and showing, also, 2the various parts of the machi-ne. f i

a a, the movable shovel-handles.`

t t, the ordinary saw-handles.

c c, the screws, fastening into the tree..

d d, the buttons or plates, to keep the saw in place.

e, the.`guideplate.`A e e f, the bar, sustaining slide and springs at one end,

l andrconnected `with the plate f at the ether.v

i g1g, springshavi1 rg ext-ended arms, connected with thearmsh and .e g 1w z`,"a slide and frame, `holding the `spiral parts of the springs gg, and sliding ,on the bar C `The device is a cross-cut saw, so applied and oper- The saw Bis, without the extra handles a a, an

,ordinary cross-cut` saw', andpby removing the extra -11audles, canfbe used `forsawing logs, &c.

The handles a a?, as will be seen bythe drawing, are made likel ehotel-handles,with pivotal pins entering the opposite `sides ofthe sockets and handles l The handlesa altura laterally, in `either direction, so that the workmen may change `1 heir position, in-

regard to the tree',\vhe1`1 falling, `or when the ground And being ment is thereby obtained, theV operator can work as in sawing logs,and1uore easily tllalmvith the handlesb l).4 i

The handles q, a,.also,` are so `fastened by screws,

`near the pivots, .that they Vcan be easilytakeu ofi', i when the saw can "be vused asan ordinary saw.`

lhe buttonsyoi" movable plates 'd d, in` connection with the plate e, keep `the saw between them, an'd in ahorizontal positiolntheplates d d turning outwardy `when the saw is to. beput` in position or removed.

. They are made of` wood ormetal'.

The screws e'c, seen in the dotted lines in the drawing', pass under the plate e, and into the tree, keeping "the whole frame-work ofthe machine steadily in' po- I e :.sition. Dogs or staples may be usedintheir place.

.run through easier.

The bar f supports the slide or frame t'. It is made of wood er metal, having pin-holes for the spring-pin in the slide i, and is fastened at one end, next to the drawing, represent spiral springs. They are between the arms of the ame of the slide, and at the upper Ypart are fastened to the straight arms of the springs `g g, seen inthe drawing. The straight parts may be continnations of the spirals, or joined, as in the drawgThe slide has a piu, represented `in the drawing as a band, passing over ene end ofthe slide. made in the form of a spring, to kfit into holes in the bar j, so that the slidecan be moved down toward the tree, as the saw penetrates the tree. v f At the extremities of the arms1 of the springs g g are tted, through holes in the same'J arms h It, and these arms are fastened into the plate of the saw, as vrepresented in the drawing. They are free to move,

lboth in the saw-plate and spring-arms, as the s aw is 4 drawn in veither direction. `-They are made of wood or metal.

A The advantages of the spiral springs, and their straight arms, are this, they have a steady and com stant bearing upon thesaw, pressing it up to itswork,

`as it'is drawn hack and forth, and an equal pressure,` .whether the middle or either extremity of the saw is doing its work. The pressure also causes the saw to To pnt the machine in position for operating, push up horizontally the plate e, with its parts d. d and f to the tree; turn the screws in'to thetree; adjust the saw between the` plates, and itinthearms h h, ad-

' justed to the spring-arms q g, the slide/i being adjusted to the'bar.l I Y 'The device is not expensive ordilicult in construction, and operates with` great advantage in practice.

The saw, of course, can be used without the spring-4 arms h h, g g, 85e,

I amaware that handles, similar to the withindevice, have been 'used heretofore with cross-cut saws. I disclaim the arrangement and use, as heretofore applied.

Claim.

But what I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement of the several parts of the device, viz, the handles a athe arms h'h, operated by springs g `g,the shaftf, the plates dd and e, the screws c c, all constructed and operating in the manner and for the purpose herein shown and described.

v SAMUEL FLETCHER.

, Witnesses:

FRANK G. PARKER, J. L. NEWTON.

This is

Images