US1169854A - Belt-gearing. - Google Patents

Description

E. T. MERRITT.

.BELT GEARING.

APPLICATION FILED FEB. 1.2, 1915l 1,169,854. l Patented Feb@ 1, 1916.

2 SHEETS-SHEET 2.

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l513e yitilniwn that 'IpErmLxRD-HT. MnRRi-TT, a- Citizen of-LthefUnited' x States, residing at i Capeville, inithe countyl:of'Northampton "profvide la'fmechanism tojtakelthmplace Lo- 'rthexhand land lwhich ,thensarne *flexirange" of :adj u'stment, fand y is Loont'rolled by a ,single l operating and State of Virginia; haveinventedqfnew and' 'useful Improvements 1n :Belt-Gearing,

of which the "following, is aspec'flcat'lOlL This -inventionrelates ;toz,;an- ..:i-mprov,ed belt gearing particularlyadapted to car- .riagefe'edfmechanism for-stave sawingmai the Lcarriage 112;; gnoyesj against 1 one y side:` of the Y-sawfin; mensual/:mannen andfisiprov-ided for supporting afilolock korgfboltyoWoodlg adapted torbegentyinto yfstaves.

chines, \or-the-like, Awherein "a/:relatively 'quick and short reciprocating;movement i. is

-gi-ven the carri age and ihas fior :an obj ect :to

lb'ilityfand mange, ofi adjustment :that ishad by manually operating ithegcarriage.

\ "Another ,obj ect r`of E,the 'invention f-is to Lproliride ag'feed fmechanismof thisncharacte'r which is relatirelyifsimpl'e inVV construction, 4which' =is yieldable `in operation, :with vacgfrejat flexibility which so arranged'fas. 4to insure v#che@safeboperati-.on

J to the. operato-r which be. .immediately *stepped lattachedfto anyitjype of c machine having-a movable` partadaptedlto loe ,reciprccatech which rn'ay be coupled :with .j'aflinefshaft 'and 'which 'whi1e. ;adjfustable L'dce'slfnot necessinconnection "'of-the feeder Iftheiejwitlh, fan-,d

tate thefstopping tof the; line-'shaft orr-thexdisvwhich' zmaterially increases `the ,jo-utput ,of the-saw or othermachneto which itis The aboie fand other objects l-,andsadvantages of, this vf,inizentio'n, lWill :be more iclearljy :brought out in y,the .Iiol-10Wing detail description of fthepresent embodiment oft-his inventicn, the same being shown inthe accompanying drawings wherein;-

Figurel 1s a ,side elevation *ofthe im- Ypi'roved'ffeeder asapplied :to -a stave sawing machinc-A. -FigfQ fisa to-p (plan ,View of the same. `Eig. 3 isalongi-tud-i'nal centralise@- .tion vthrough the ymap-roved e'edefr. iFig. 4i l-is an Inner end yView of .the 4,sam-je. XF-ig. :51s

oli-ter end View of theeeder.

,parts are designated-bysimilarcharacters '-'-0f -freference f throughout'thefzseveral views,

:begseenlthatthe improved feeder is [applied t0 a vstave sawingV machineftheflatter having l0 :,overw which; 11s

f Thee-eederif this finigention isi shown iin :the present instance-as '/eomprisingt a sub- ):'Stantially rectangulan frame 'Y1/hin ,-.the top.- f ,oli which isg-journzgleda transverse'shaft 11,5,

'the latter-heing loeatedgintermediate the `the shaft 15 canriesagerfnk arms/16 yor-the lequiyalent 1 thereof,` to which is :connectedlflfhe opposite. end

j j sigpivotaljlconnectionflas.;at -uWith pthe carriage 125015 .-the saw.

' shaft J. isfalso vprovided-with vafixed one end of agpitmanhl.

,other suitable-source of gpower to drive the in ,parallelism `with vthe drive vshaift .21, hel

drive shaft 21 has'finedtherecnafpulley 25 located between the L11111; ,hars 23 zand in line .with an Eidler -pulley126xmounted lupon the dr-ivingqpulley 19, f ofTL any, approved ,design,-l 8 0 aandv hav-ing anyone-iside agcounterweight;20 arranged substantially ,at 90 sierankffarm, llftowadrthef.-@uber 25 and 26 and is adapted to be continuously driven by the drive shaft 21 immediately beneath and in alinement with the drive pulley 19 on the main shaft 15. The opposite ends of the idler shaft 24 project .laterally beyond the link bars 23 and are adapted to normally rest upon supports 28 arranged in the opposite sides of the frame 14. In this manner the swinging end of the belt 27 is normally supported in the frame 14 out of contact with the drive pulley 19.

The free ends ofthe link bars 23, as may be best seen from Figs. 4 and 5, are joined by a vcross-piece 29 having a rod 30 hinged thereto, the rod extending upwardly therefrom in the frame 14 and being pivoted at its upper end to an operating handle 31. The handle 31 is hinged intermediate its ends upon an arm 32 rising from the frame 14, the handle 31 extending substantially horizontally and laterally from the frame 14 to a position' above the pitman 17 and removed from the operating parts of Athe device. is

In use the frame is secured in any suitable manner against the end of the saw frame 10. The pitman 17 is connected to the carriage 12 of the saw, and the pulley 22 is connected to any suitable source of power for turning the drive shaft 21. The shaft 21 is adapted to be continuously operated so as to keep the belt 27 constantly in motion at the desired speed.

The counter-weight 2O normally rests Iat the bottom of the drive pulley 19 and thus holds the saw carriage in retracted or loading position. When it is desired to operate the carriage all that is necessary to do is to gradually draw down the the outer end of the hand lever 31. This gradual movement raises the free end of the belt 27 and brings the top of the belt into gradual contact with the bottom of the drive pulley 19. 'The drive pulley 19 is thus gradually started and as the lever 31 is further depressed and Vthe belt 27 is tightened against the drive pulley 19, the pulley 19 takes up the speed of the belt and reciprocates the carriage. `Should it become necessary to suddenly stop the carriage the handle 31 is released whereupon the belt 27 immediately drops out of engagement with the drive pulley 19 and the counterweight 20 returns the carriage 12 to its normal retracted position. It is thus seen that should the bolt or block of wood jam or be misplaced, or any accident happen to the saw proper and its parts, the feeder may be instantly stopped and the carriage be automatically withdrawn out of contact with the saw.

All of this operation is effected by the hereinabovefdescribed device which is of very simple construction, may be economically installed, may be operated by unskilled labor, materially increases the output of the saw machines as at present operated, and provides for a machine which possesses not only all of the advantages above enumerated but which is capable of the same flexibility and adjustment in its operation as is had by operating the carriage manually/the latter being the only `present suc cessful method found.

It is of course understood that various changes in the detail construction and design of the above described embodiment of this invention may be made Within the scope of the following claims without departing from the spirit of this invention.

What is claimed is- 1. In a device as specified, an upright frame, a driven shaft journaled transversely in the top of the frame, a friction pulley on the driven shaft, a drive shaft mounted in one end of the frame adjacent the lower part thereof and adapted to be continuously driven, a pulley cn the drive shaft, a pair j vof arms hinged tothe drive shaft at the opposite sides of the pulley thereon and extending longitudinally within the frame, a shaft journaled between the outer ends of the arms, a pulley mounted on lsaid lastnamed shaft, a belt arranged over the pulley of the drive shaft and the pulley at the outer ends of the arms, a bracket rising from the top of the frame at one end thereof, a hand lever pivoted in the bracket and extending laterally from the frame, and 'a connection between the inner end of the hand lever and the free ends of said armswhereby said belt may be raised against the pulley on said driven shaft and yieldingly held there by hand pressure.

2. In a device as specified, a main frame, a driven shaft in the frame, a pulley on said shaft, a frame pivoted at one end to the main frame and adapted for free vertical movement at the other end, a longitudinally extending belt mounted in said 'pivoted frame below said pulley, a hand-lever extending transversely over the main frame and projecting beyond the same, and a connection between the inner end of the handlever and the free end of the pivoted frame to raise the belt against the pulley by hand pressure, said pivoted frame and belt instantaneously and automatically moving away from said pulley when pressure upon the lever is relieved.

3. In a device as specied, a main frame, a driven shaft in the frame, a pulley on said shaft, a frame pivoted at one end tothe main frame and adapted for free vertical movement at the other, a belt arranged longitudinally in the pivoted frame. a rest in the lower end of the first mentionedV frame adapted to normally support the free end of the pivoted frame, and a hand-lever promy hand in presence of tWo subscribing Wit- ?'Eecting florn the upper end of the main nesses.

rame anc having connection with said free end of the pivoted frame whereby to raise EDWARD T' MERRITT' 5 the belt against the pulley and yeldingly Witnesses:

hold the pulley and the belt in Contact. JOHN T. DUNTON, In testimony whereof I have hereunto set DANNIE MCCARTY.

.opes of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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