US834251A - Sawing-machine. - Google Patents

Description

PATENTED OCT. 30, 1906.

L u T e n n n s t LL m H E n s 2 L 0 9 l1 E- .Nn I. HHM LCD Am BMM .Gr LNn .Im BWA Am SL P P A VNo. 834,251. PATENTED OCT. 30, 1906.

L I B. L. BAILEY.

SAWING MACHINE.

I APPLIUATION FILED DIJO. 14, 1904.

' 2 SHEETS-SHEET 2.

Witnesses I Invenkor,

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ttomegs.

' sfrATE's PATENT OFFICE.

-To all whom it may 'concern/4:

iro. 834,251.

BERTON' L. BAILEY, or" PORTLAND, OREGON.

I sAwlNei-,mulcruNE. Y

Be it known that I, BERTON L. BAILEY, a citizen of the United States, residing at Port- Y land, in the county of Multnomah and State of Oregon, have invented anew and useful Sawing-Machine, of which the following is a specification. l

This .invention relates generallyto saws,

and particularly to that Aclass known, as

chain-saws.

' The objects of the invention are to provide a saw of the character specified which shall be ada ted for cutting either standing or fallen tlmber, which shall be simple of construction, thorou hly eflicient and durable l Iin use, and in whic theI parts shall beso oonstructed and combined as toreduce liabilit -ponent parts to fac of breaka e inuse to a minimum, which sha L be 4capabe of bein separated into its com- 'tate repairs when necessary, in which the teeth may readilyT be l shaened without removing themfrom the novel construction and combination of mac e, and generally to im rove and render more eflicient saws ofthea ove character.

v With the above and other objects in view, as will appear as the'nature ofthe invention :is better` understood, the same consists in the arts .of a chain-saw, aswill be hereinafter ful y described and claimed.A

` In the accompanying drawi s formin a part ofthis specification, andnignwhich hke characters o f reference indicate corresponding parts, Figure 1-k is a view-in elevation, part y in section, of a chain-saw embodying one; form of the present invention. Fig. 2 is' a view in vertical transverse section, taken )on the line 2- 2, Fig. 1.

Fig. 3 isa collective detail view of a taker-tooth and a p'air of cutter-teeth. Fig. 4 is a view inl plan of a portionv of the saw. Fig.l 5.isa view in vertical section, taken on the line 5-5, Fig. 1. Fi 6 'is la view in 'elevation ofa portion o a slightly-modified form of saw. Fig. 7 is a view in Elan of the saw shown in Fig. 6. Fig. Sis a co in connection with the'saw shown in Flg. 6.

The saw of-the present invention, as `ex- -hibited in Figs. 1 to5, inclusive, embodies a Estock consistlng of three lates 1,2, and 3,

#which are held fassemble headsandends of which lie flush with the .outer faces of the two outside plates, thus to Speciication of Letter. Paty-ent. Application illed Deoeinber 14,1804, Serial No. 286,844l

ective detail view showing a form of Taker-tooth and link that may be employed by screws .4, the' Patented o'c. so, 1906.

obviate the resentation of obstructions that would interfere with the passage of the saw through a lo tree, or other piece of timber.v The outer p ates 1 andv 2 are coextensive in length and width; but the intermediate plate is s orter and wider than the others, the added width serving as a guide to direct the saw to cause it to move in a right line, as will hereinafter more fully appear.

The saw is constructed of pairs of cutter-` teeth 5 and-alternate raker-teeth 6, the -cutter-teeth having their oints deflected laterally `to secure proper cie'arance. The points 8 of the raker-teeth are swaged at -9, and these, in conjunction with the points 7 of the cutters, willeifectsmooth and rapid cutting through the timberwithout danger of clogglilnig. The points 7 are set so as to project a s cient distance beyond the sides of the stock to insure free passage of the saw through part of the raker-teeth and bev associated therewith so long as said teeth are available for use. Each rivet is provided with truncated cone-shaped terminals 14, that are factory-swaged forthe purpose, and with intermediate reduced ortions 14.` The swaged terminals or hea s 14 are designedto `engage keyhole-shaped slots 15 in the cutters,

the walls of the openin s lbeing beveled to conform to the 4oppose inner faces of the heads 14, thus allowingtheouter face of the latter to lie flush with thejouter faces of the cutter-teeth. The eyes 16 :are of eater diameter than the heads '14 to permit t e latter to pass readily therethorough, so that when it is desired to remove the teeth for any loo purpose the tension Of the saw isrelaxed through vthe mechanism presently to be described, whereu on the cutters may lbe readily separated) from the raker-teethin a manner that will be obvious. The keyholeslots, as clearly shown in Fig. 1 ,converge los neetion from the outterfteh when 'the -SwW g thereot, w ereby the saw is guided thrcughi .out its entire length. One of the platesl in toward each @thema .this imitan@ in the .di- `rection oi' the s toek `or frame, so Ithe rivets will be positively held against disconis under tension.

As clearly shown in Fig. 1, the ends ofthe outer plates are rounded, While the terminals ofthe inner plate terminate short ofthe ends of the outer plates to provide space for anv idler 17 anda sprocket 18. The idler prof jects beyondI the ends of the side plates a distance. ual to the .es i() of the inter.- T

mediate ate and ori-ns a continuation .this instance the plate 1, has brazedto it a hub 1-9, a screw 19, isposed flush with t plate 2 and .engaging a threaded opening in the hub,operating to hold the three plates properly assembled at'tliis point. The idler is provided with a hubopeningof sufliciently greater diameter than the hub to per.-

mit inclusion between the p'arts of ball-bearwheel 18 ,which has its bod jee-ted beyond'the ends .o

` struction .and is carried by a s aft 21, driven ra s next to the spocket-Wheel, While the ass entirely through the three v,plates T se bolts carry nuts `26, by which longitudinal `slot 27, through which the shafty ings' -20,Which, as will be obviousmvill reduce the friction to a minimum. The sprocket.- pprtion also proft e outer lates, may be of the usualv or any referr con.-

from ansuitable source of power, not necessaiy to e shown.

n order to provide suitable bearings ytor the shaft, there 1s disclosed on each side of the stock a late 22 ,provided with a plurality of longi inal slots 23, through which `pass pairs of bolts -24 and 25, the bolts 254 bein rejected only through the `outer plate. vand ha' e: their` heads countersunk andl ar.-

' ofthe saw' to compensate for loss of motion,

each of the outer plates is provided withv a projects, and it Will be seen that by moving they plates 22 toward the ends of Vthe stock .the -ruired take-up of the chain maybe .Qfit] in ,the form et embodiment of the invenl tiongshcwn in Figs. 6 and 'Z the clitterfteeth 2-8//sje-rights and lets, and but one tooth is l arranged at each terminal of a link, Whereas in the form shown in Fig. I 1 there are two points at one terminal. By having ytoothat each, terminal of a .link-this will permit sharpening Without the. necessity of accesi separating the cutter-toet as described in connection with the o invention shown in Figs. 1 to 5.

The cutter-teeth are connected by rakerteeth 29 and plain links 30, the roker-tooth 3l being shown as dis osed intermediate of the ends of the link, a though, if preferred,it may be at either end. In' the forni of invention shown in Fi 1 each cutter-tooth is alternated by a ra e tooth, but in the form shown in Fig. 6 there will be,say, one rakertooth and twiligilain links and` another raiser-tooth, a so on, or there may be a greater number of plain links employed than two between each of the raken-teeth.' Where this form of saw is employed and se above stated, it is not necessary to separate the links for the p ose ofsharpenmg, but, if preferred, the ho arrangement and rivets shown in Fig. 3 may be employed andstill be Within the scope of the invention, and as this will be readily understood detailed illustration thereof is deemed unnecessary.

l It will be seen from the foregoing descrip tion that although the saw of this invention is' exceedingly simple of constniction it combines in a ready and practical manner all the essentials' l a c a: 1n the pidutioll of a thoroughly effective o evice, and, further, that it will be positive in its operation when operated either as a crosscutl or a rip saw. It will of course he understood that Where used for a ri -saw the teethwill have to be somewhat fora crosscut, and as this will be obvious de- 1. An implement of theclass described, comprisingia pluralit of cutter-teeth, each having pairs of keylsiolefshaped slots that lconverge toward each other, and connect' elements having 'rivets provided with taper heads to engage the slots.

2. An implement of the class described com rising a multipart stock the members of whic are rigidly connected and a chaimsaw guided for movement by the intermediate stock member, said saw comprising pairs of cutter-teeth 'each pairs' of keyholesha ed slots that converge toward cach other a intermediate relier-teeth, connecting ele ments carried by the raker-teeth and having tapered heads to e age the'slots the points of' the cutter-teeth ing deflected beyond the sides -of the stock and the points of the raken-.teeth being swaged.

an intermediate late and side plates embracing and ri diate plate, the` intermediate plate being shorter than the side platesand of awidth to project be` ond the edges ofthe side plates, correspomng `ends of the `side plates being Idem sms described um invention, mi

ently shaped than when used IOO tailed illustratidn thereof is unnecess. A Chainsaw having a. escamas@ up si y secured to the interme- I provided with alined lor 'tudinal slots vl'o.-

cated be ond the interme iate plate, a. shaft adjustab e in the slots, bearings adjusteblyV fcarried by the side plates and receiving the shaft, a sprocket carried by the shaft and projecting beyond the edges of ythe side plates, an idler mounted between the other endsof the side plates and projectin beyond the edges thereo links working upon `the edges of the side plates, and an intermediate series of links located between and connecting the toothed two spaced series o toothed T links, said intermediate links traveling upon the edge of the intermediate plate, and certain of the intermediate links having rakeri5 teeth.

In testimony that I claimthe foregoing as my own I have hereto affixed my signature inthe presence of two Witnesses.

BERTON L. BAILEY.A

Witnesses JOHN STEWART, K.l V. LIVELY.

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