US786703A - Sawmill set-works. - Google Patents

Description

ATENTED APR. 4, 1995 U. A. WILSON.

SAWM

LL SET WORKS.

APPLIoMloH HL?.

D AUG.16,1904.

2 BHEETS-SHEET 2.

CHESTER A. YvlLSON,

OF PLEASANT Patented Aprilfi, i995.

foto.' if ,-1 'pre e @tra VALLEY, HRGNUL SAW' Wi i L L. SETNV KSV SECIFEGATON orming part of Letters Patent No. 786,703, dated April 4., 1905.

Application led August 16, 1904:. Serial No. 220,965.

lie it known that Unseren A. VILsoN, a citizen ot' the United States. residing at Pleasant Vallev, in the county of Fairfax and State ot' 7irginia, have invented certain new and useful Improvements in Sawmill Set-Vilorlts, et"

which the following is a specification.

The invention relates to ar. improvement in sawmill set-works, and particularly to a manually-operated type ol" novel structure and arrangement.

rlhe main object of the invention is to provide manually-operable means for adjusting' the log-knees in either direction with relation to the saw and at variable speed..

The invention, broadly stated, com prehends a knee-adjusting shaft carryirg a tiXed gear, speed and reversing gears arranged for operative engagement with said shaft, and means to operate said latter gears at will in the movement of the lever.

The details of the preferred embodiment ot' my improved set-works will oe fully described in the Yfollowing speciication and are clearly shown in the accompanying drawings, in which- Figure l is a perspective view oi a set-works constructed in accordance with my invention. Fig. 2 is an enlarged longitudinal central section of the same. Fig. 3 is an enlarged horizontal section ot the same, taken just above the knee-adjusting shaft. Fig. d is perspective details ot' the pawls and operating-arm for the main gear. Fig. 5 is a broken plan bottom, showing the operating end ot the anxiliary handle. Fig. 6 is a perspective ot one ot the stops for limiting the operation of the set-works. Fig. i is a perspective view ot' the pawl-litting arm.

Referring to the drawings, wherein like rei'- erence-numerals indicate iilte parts throughout the several views, my improved set-works comprises a iranie l, arranged to be secured to a suitable rail Zot a saw-carriage. The trame is preferably ot' metal and comprisesbars 3 and a, secured to project at right angles and beyond the edge of the rail 2, as shown. One bar, 3, is formed with an arc-shape extension 5, the periphery of which is 'formed with a series of holes 6 to receive stops 7. rEhe holes are preterably arranged in two or more rows, the holes otl one row beingintermediate the holes ol adjoining' row, whereby to secure variable adjustments. rlhe stops T are ot a size and shape to limit the movement of the mechanism, as here-- inatter described, being provided with depending pintles 8 toenter any ot' the holes S. rrihe forward stop is provided with a transverse voperating set-screw Q for a purpose hereinafter (,lescribed.

The knee-adhisting shatt l() is revoiubly supported in the arms 3 and e. beingarraizged parallel with the carriage-rail Z and provLded at one. end with means for moving the logknees. (Not shown.) @n lthe shaft l), between the arms 3 and di, is [ixedly secured a main gear 1l, and contiguous this gear ind loose upon extensions '10 l0" et' the bearings 10b are arranged the speed-gear l2 and the reversing-gear 13. These gears are preferably arranged one cach side the main and in close relation thereto.

14-v represents the operating-lever et' tie usual hand type, branched at its lower end to provide arms l5, the lower ends ot' which encircle and are pivotally supported on extensions l0" lOl. A. series et pawls lo are pivot(- d between the arms 15 ot' the lever with their tree ends arranged for operative engagement with the main gear li, these pawls being pret'- erably arranged in plural number rather thai'.

'a single paw! to insure a certainty of action,

some ot' the pawls being mounted on shaft i8 and some on shat't 2l, hereinafter mentioned. A second pawl 1T is aise mounted on the shaft 18, which pivotally supports some of the pawis 1G, this pawl l? being arranged for engagement withfthe main gear in a direction reverse to that oi pawi 16. fr pawl i9 also mounted on the shaft 2l., with its operative end arranged for engagement with the reversing-gear 1.3. A. pawl 20, pivotally niiounted upon a s ia'tt 21, secured intermediate the arms 15, is arranged ter operative engagement with ed-gear t'. n3 and Q-t are arranged in horizontal alinernent across the rear of the set-works,the shafts being respectively mounted in the bars 3 and e. intermediate the arms shaft is pro fided with lixed pinion 25, arranged to artis '78 @a i mesh with the speed-gear t), the oud ot shaft 23 beyond the bnr il being' provided with :t

ineshes with the pinion '51, lieved u pon the adk justing-shalt it).

A set oi pawls 3Q are mounted intermediate the bars irl and et with their ends ei'igag'- ingthe main gear-i l, wherebty to prevent overrunnine' or baclnvard movement oi said gear.

To provide tor th i suitable manipulation of the various pawls to obtain the object desired, i provide rods 33 and Sel, the former beine' arranged to control the operation o' the revereine-gear, while the latter controls the operation olf the speed-gear. The arm E3 is provided at its lower ends with a loop-torm terminal 35, which passes beneath the shaft l() and upwardl),v to the pawl i9, honig there bent at a right angle` as at 36, to mulcrlie said pawl. The crown oi' the loop 35 rests upon one end oi a liiting'nrni il?, pivoted between the bars 3 and et, with its opposite end ui'iderlvixigl the lree ends oi the pa 'ls 52. Adjacent the pawl-shal't 1U the red 33 is prof vided with a laterally-extendine' stud 38, which engages a lil-'ting-u rm 3i), which :i rm is pivotalliY mounted upon shalt itl and has a transverse bar L10, which underlies the pawl i6 lorward ol their pivots. The rear end olE pawl i7 is notched at il to receive the bar lit).l whereby upward movement ot said har ILO will li"'t the pawls iii from engagement with the main gear l1 and at the same time torce the pawl 1'? into eng; gement with said gear. 'lhe lower end ot' rod ist is connected to a rearward extension of the pn wl llh whereby an upward movement ot' said rod will torce the pawl 2() into engagement with the siieecl-g'ezir l2. lhe upper ends or' tl e rods 33 :1nd Het ere connected tooperating-handlcs '72 and 13, respectivelif1 having bent lower termiuffils, as shown, und pivotallv supported on a stud 41st, arranged transversely of the lever liniear the handle end ot' the latter. ,lfhc handles are held in certain pilsitions in the normal condition or the parts through the medium of spring 45 and e6., respectively, the former oi: which isarranged to hold the rod inthe extreme ot upward movement, while the latter is arranged to hold the rod ML in the ex#A treme ol" downward movement, this being' the normal position of the parts. in this normal position the rod 33 beine' elevsted will heid the pawl 1Q out oi enge versinlewenr, the crown oi the loop 35 out of 'erneut with the rei Contact with the lifting-2111113?, und the trausverse bar Ail) ot' the lifting-arm 3 9 out ot' engagement with the pawls itt while the rod will maintain the pawl 20 out of engagement with the speed-gear lli).

An arm /ti' projects laterali;y from the lever iiq riding` in close proximit,7 to the peripher),7 et the extension 5, serving to limit the movement ot the lever in both directions by contact with the stops 7'.

Assuming the parts inl normal position` the operation ot' the set-works 'is as follows: A reciprocatory movement ol." the handle end ot' lever ist will turn the main gear 1l by means of the pawls 16, thus advancing the gear and tui-nine` the adjustine-shaft l0, and thereby adjust]nel the log-knees connected to the shaft l0. ,lt it is desired to reverse the movement ol shaft l0., the handle 412 is depressed or swung downward on its pivot against the tension et' spring;l 45g which movement depresscs rod 33, elevating pawls 16 by lifting'- arin 39, forcing the backing-pawls out ot' engag'eu'ient with gear il through movement et the lifting-arm Si" and permitting pawl i9 'to engage the reversing-gear 13. A reciprocatorv movement of the lever will now advance or turn the reversing-gear foi-wurd, (h'ivimg pinion Q8 and Z9 on shaft 2411 rearward and th rough the idler 30 driving pinion Bl. rearward. its pinion 31 fast on shat't 10, said shaft will be revolved in a direction reverse to its movement under inliuence of the main gear ii. Bv releasing1 the pressure on the handle lf2 the spring C5 operates to return all parts to normal position, as will be evident. 'ilo accelerate the speed of shat't lO beyond that possible by lgear 1i, i elevate rod 34 b v swinging' handle t3 on its pivot, which eleva ion of the rod i'orces pawl 2O into coperation with the speed-gear l2. Reciprocatory movement of the lever ist will revolve the gear lf2, turning' the pinions 25 and 26 on the shaft Z3 and through the latter turning' pinion 27, and hence shalt i0. As pinion 25 is considerabl;7 smaller than gear l2 and pinions 2G end 27 the same size, it is evident the shaft i0 will be more rapidl5v revolved than when actuated by the main gear li. The recirn'ocntoi-,iT movement or throw otl lever 14j is limited by its arm 4T contacting with the stops L which latter may be adjusted in holes 6 to secure any desired length of stroke, a further adjustment to limit the throw of the lever between adjacent holes being' secured by proper setting oi screw 9, will. be evideut.

To permit proper operation of the parts Vtrom the side oli the Saw-carriage opposite to that on which the set-works is mounteeh i provide a pull-rod L18, pivoted at t9 to the lever le near the upper end and having' a stirrup-hanijlle 50. A rod 5l, having' a stirruphandheld 52, is lixed at one end to handle 452 above its pivot, whereby pull on the rod will suitably operate rod A second rod having a handle end 54e., is connected to hanbeingr at the limit oi' its downward movement i die 4:3 and arranged to operate rod 34C whe IOO forced inwardly. The handheld 52 is mounted within the handle of the pull-rod 4:8, while the end 54: of rod 53 is turned upward at a right angle a slight distance beyond said handle 50, whereby rod 5l may be operated by a pull and rod 53 by pressure without releasing the handle of the pull-rod a8. The operation of the set-works by use of the pullrod is fully apparent, it being understood that such pullrod and connected parts may be of any length desired to position them convenient to the operator.

The fixed gears and pinions may be keyed to the shaft; but I prefer to use the ordinary set-screw attachment in connection with the groove in the shaft.

It will be noted that the operative throw of the lever is in the same direction during the direct or reverse movement of shaft l0, the difference in direction being gained by manipulating the pawls described.

I do not wish to be understood as limiting myself to the precise construction herein shown and described, as I consider all obvious changes of structure and arrangement as within the scope and spirit of my invention.

Having thus described the invention, what is claimed as new isr l. A sawmill set-works comprising a kneeadjusting shaft, a lever, and means operated by the lever to the shaft in direct, reverse, or accelerated movement.

2. A sawmill set-works comprising' a kneeadjusting shaft, a main gear fixed upon said shaft, a speed-gear loose upon the shaft, connections between the speed-gear and the shaft, a lever, and interchangeable means operated by the lever for actuating the main gear and the speed-gear.

3. A sawmill set-works comprising a lineeadjusting shaft, a main gear fixed upon said shaft, a speed-gear loose upon the shaft, connections between the speed-gear and the shaft,

` a reversing-gear loose upon the shaft, a lever, l and interchangeable means operated by the lever for actuating said gears.

4. A sawmill set-works comprising a kneeadjusting shaft, a main gear fixed upon the shaft. a speed-gear loose upon the shaft, connections between the speed-gear and the shaft, a reversing-gear loose upon the shaft, a lever for operating all of said gears, and means for connecting the lever with the speed-gear and with the reversing-gear at will.

5. A sawmill set-works comprising a frame, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the shaft, an operating-lever pivotally mounted l shaft, an operating-lever pivotally mounted on the frame, pawl mechanism connecting the main gear and lever, pawl mechanism connecting the speed-gear and lever, and means for controlling said latter pawl mechanism.

6. A sawmill set-works comprising a frame, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the on the frame, pawl mechanism connecting the main gear and lever, pawl mechanism connecting the speed-gear and lever, and manually-operable means for controlling the pawl mechanism.

7. A sawmill set-works comprising a frame, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the shaft.I a reversing-gear loose upon the shaft, gearingbetw een the speed-gear and the shaft, gearing' between the reversing-gear and the shaft, a lever pivotally mounted upon the frame, interchangeable means carried by the lever to operate the said gears, and means for controlling the connect-ion of the lever with said gears.

8. A sawmill set-works comprising a frame, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the shaft, connection between the speed-gear and the shaft to accelerate the movement of the latter in the operation of the former, a reversing-gear loose upon the shaft, connection between said gear and the shaft to reverse the movement of the latter in the operation of the former, and a lever for operating either of said gears at will.

9. A sawmill set-works comprising aframe, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the shaft, connection between the speed-gear and shaft to accelerate the movement of the latter in the operation of the former, a reversinggear loose upon the shaft, connections between said gear and the shaft to reverse the movement of the latter in the operation of the former, a lever for operating either of said gears at will, pawl mechanism connecting said lever and the main, speed, and reversing gears, and means to operate lsaid mechanism to connect the lever with either of said gears.

10. A sawmill set-w Orks comprising a frame, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the shaft, connection between the speed-gear and shaft to accelerate the movement of the latter in the operation of the former, a reversinggear loose upon the shaft, connection between said gear and the shaft to reverse the movement of the latter in the operation of the former, a lever for operating either of said gears at will, pawl mechanism connecting said lever and the main, speed and reversing gears, rods connected to said pawl mechanism, and means for operating the rods.

l1. A sawmill set-works comprising a frame, a shaft mounted therein, a main gear fixed upon the shaft, a speed-gear loose upon the shaft, connection between the speed-gear and shaft to accelerate the movement of the latter in the operation of the former, a reversinggear loose upon the shaft, connection between said gear and the shaft to reverse the movement of the latter in the operation of the fer- LOC IIO

mer.A e level' for operating' either of said gears at will, paw! mechanism connecting' the lever and main gear7 :z pfiwl arranged for connecting the lever sind the speed-gear, a new] :Lrrenged 'for connecting the lever and reversinggcsr, a rod for operating the speed-gear pzuvl, and e second rod t'or operating` beth the ineingezn pewls and the reversing-gear pewls.

1Q. Asewmill set-works comprisingl a. kneeadjusting shzrt, e, mein gear fixed upon the shaft, a speed-gear loose upon the shalt.i e rcversing-g`cz1,r loose upon the shaft, :i lever. puwl n'ieehsnism connecting the lever :1nd gears et will, and ineens 'for limiting' the throw of the lever.

i3. A sawmill set-Works comprising a knee- :idjusting shaft e. main gear fixed upon the sha-tt, a sikieed-geer loose upon the sha-ft7 a re- `versing;-gezir loose upon Athe shaft, e lever,

pawl mechanism connecting the lever and gears at will, and :uiljustahle stops for limiting the threw of the lever.

M. sawmill set-Works comprising` e frame, a shei't mounted therein, e mein gear fixed upon the Shiite, e speed-gear loose upon the shaft, en operating-lever pivotally mounted on the treme, pewl meehenisrn connecting' the mein gear und lever, pewl mechanism connecting; the speed-gear and lever, ineens for controlling' seid latter pewl mechsinism7 and e pull-rod connected to the operating-lever.

l5. Asawmill set-Works comprisingafreme, a shaft mounted therein, a main gear fixed upon the shaft. e speed-gear loose upon the shaft, an operating-lever pivotall;v mounted on the freine, pmvl mechanism connecting` the mein gear and lever, pewl mechanism connecting' the speed-gear and lever, e pull-rod connected to the operating-lever, end means Carried by the pull-rod too'perate said newleontrolling' mechanism.

.ln testimony WhereolI l eitix my signature in presence of two witnesses.

CHESTER A. VLSON., [12. sj fvvitnesses:

G. P. lNiLsoN,

1J. Ronny.

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