US1136940A - Adjustable governor for engines. - Google Patents

Description

E. CRAFT.

, ADJUSTABLE GOVERNOR FOR ENGINES.

APPLICATION -HLED JUNE 21,1914.

LSGQLLG@ Patented Apr. 27, 1915.

2 SHEETS-SHEET l.

E. CRAFT.

ADJUSTABLE GOVERNOR FOR ENGINES.

APPLICATION FILED JUNE 27.1914.

Patented Apr. 27, 1915.

2 SHEETS-SHEET 2.

Ik. W

J@ e, Ilm,

Anwswmm @ci l SHA fmm", citizen @siding Weisbuig? 0051 and Sima of Ws Vgiii? imi/a iii @med ceiaiia new and usafu mpm' im djisza'be Governors for Enigmi@ 0i which h@ foowing i5 a spamiicaon.

mfeiisii iiaes @to gmfeinors azi pmiwlgiy t@ gf; r3mors adapted to be used in @mi @action engines ai saw-miii High not limited to @is use.

a f. C

u jah@ objecs of my iiisi? fw provide very simpfe means wbreb 'bhe speied of the engin@ be refiiy changed. witheu :fmnging 0i* shi-iig bei@ which connects the gwamor sesond, 0 provide means 35m' a. f1* .ily cosiiig ifa@ eguiaing valve? hiweaks; and iiird? im pmfiie meal me govamoi may in@ Wely imm :2i-he driving These @bj-es 'fully su M57 iii paiying side @ien in sies@ invenimi, simi@ of mi. Fig. 2 is a fi gwermima?, @if 153mm mi@ *EDR ENGINEQ.

di@ vaina casing of h@ usual oidinaiy regw ming miie or coiiioiixg valve @T n. steam .engine or gas engine. iiasmiieii as his vaive and the Casing am si? Gimai'y consiucioii, share is im nacessi'y o' gli/'ing any deiiQd fascripion @wsa @m3,

Mouiied upon iii-e casing 2 is the supportiig frame 3 of the gowemox' having projecing heremm a bmcke 4L which is zuouar and hwiigh which de iii/ing shaft 5 passes. This da'iving shef; is Musix-@ted as carrying ai; its and a puiirey designated gem @rally 6 having che same conssrucion as iiat illusiafed in my Riten@ N0, s gianted March 5, 19M. inasmuch as th@ pm'ticuiai form of this puey ha@ noihiiig :to do with he piesent invenioi, a snrthex esci'iptin thereof is unn'essaiy Carried upon the innei" @ad iia siasi@ 5 *kme bev-@ gear whee 8. Russian@ im@ @we vave @ming 2 is tim vavfs shau @his haii is made in fsw@ secsiis, h@ sections ieing designaed, raspaciveiy? 9 mid li()a as swwii more clem-i3; in Fig. When the upper seciim l() is iwem, 'ivig @ngagemen with the semina 9. 'Ehe gec- 'ion 9v wwever, may be dwpped Wih reiioii to :he section l@ by mamies @Mah will hereafter casfziioad,1J mit ximmaiy ami Live @Eris am in wmiiiig psiimi h@ ii is heid the sac'i-eii i@ bymeams mschanism is smi i5 uping @if shaw l wie? @uiting mi @viii-h ia pi neiewifh..

toward the right in Fig. 3, the detent tooth will escape from its en a ement of the upper section 10 of the saig't and as a consequence, the lower section of the shaft together with the coupling 11 may drop. The means for automatically causing the disengagement of the two sections of the shaft will be later stated.

The frame 3 extends upward around the shaft as at 17 and inserted in this upward projecting boss or seat 17 is a tubular member 18 which at its lower end is screwthreaded in the seat or portion 17. The shaft section 10 extends upward entirely through this tubular member. The tubular member is slotted as at 19 'and passing lthroughthe shaft and through this slot is a transversely extending pin 20. It'will'be seen that'the shaft may therefore rise or fall within av predetermined distance with rela v ltion to the tubular member 18 but that the shaft will'be prevented from any rotation.

' Surrounding the lower portion of the tubular member and rotatablyv supported upon the seat 17 is a head 21 having a downwardly extending portion 22 forming a sleeve loosely surrounding the'tubular member or sleeve 18. A spring 23 surrounds the tube 18 and bears at its upper end against a collar 24 which in turn bears against the -pin 20. This collar as illustrated in Fig. 4

on its upper face is formed with an annulailange and the pin 20 is seated within this` Han so that the flange retains the pin from any ateral displacement. The lower end of the spring 23 bears against a cone 25 which in turn bears against a series of anti-friction balls; 26 supported in a seat 27 formed upon thepupper face of the head 21. The head 21'inay therefore have free rotation around the. tubular member 18 and isheld downwardlupon the seat 17 by the spring 23.

Surrounding the downward extension 22A of the head 21 but mounted for rotation therewith is a bevel gear wheel 28 which y meshes with the bevel gear wheel 8 under normal circumstances.

The gear wheel 28 has rotation with the head 21 but is free to move vertically with relation to the head 21- and upon theextension 22. To this end the 22. In order to provide for a movement of' the head 21 and extension 22 relative to the gea-r wheel 28 without disconnecting the gear wheels 28 and 8, l dispose between the underside of the head 21 and the upper face of the gear wheel 28 the coil sprin 29. During a predetermined movement o the head 21 and itsv extension 22 this spring will keep the gears in mesh but beyond the limits of this predetermined upward movement-the gear wheel 28 will move with the head 21 and will be raised from its engagement with the gear wheel 8 so as Ato, disconnect these gear wheels, as willhereaiter more clearly .insecto end of the tube 18 is a head 31 which is op-A posed to the head 21. This head has a down- -wa'rd extension 32 which loosely surrounds Etheupper end of the tube 18 'and through 'this head the uppersection 10 of the shaftpassies;t The `head has an upwardfannular v'extension' 33 which is exteriorly screwthreaded and engaging this extension is an annular cap 34- formed with a seat 35 for an anti-friction ball 36. Carried upon the upper end of the shaft'lOyis aycollar 37 `which is concaved upon its upper face to provide a seat for the ball 36. It will be thus seen that the'cap 34 may rotate with the head 31. The cap 34 is adjustable upon the head 31 and with relation to the rod 10 and `when the cap is screwed downward,V it will be obvious, that the rod 10 will be forced downward and that this will dosethe regulating valve to a greater extent than when the cap is adjusted upward. T he cap is held in its adjusted position by means of a set screw 38. i j

f The governor balls 39 are mounted upon flat springs 40, the upper and lower ends of which are connected in any siitablemanner, respectivelyQto the heads 31 -and l21;.'l Preferably, l provide. three spring strips40 for each of the balls. 4There may be three or four ribbon springs 470.'to each-*ball and, of course, I am not limited to4 this" construction. The weight of the balls is carried by these springs 40 and each ball has a guide 41 ormedwithit which extendsto'and around the-*stationary hollow standard or post 18 or tubular member, previously'referred to. These guides prevent the springs gfrom wabblingv when the revolving motion of the ballsv is suddenly increased or decreased and these guides also act vtoA limit the outward movement of the balls.

The mechanism for shifting and adjusting the head 21 and thus raising or lowerin the valve rod 10 comprises acollar 12 whic loosely surrounds the upwardly projecting seat or boss 17 and has rotation with relation thereto. T he lower end 'of the extension 22v is peripherally grooved, as at 43, and the collar 42 basan upwardly projecting finger 44 having an inwardly extending tooth which engages in this groove 43. 1t will thus be seen that any upward movement of the collar 42 will cause an upward movement of the head 21 and that, when the finger 44 which is formed as -part of the collar engages with the underside'o the gear 28 the gear 28 will also he raised. The

collar l2 is diagonally slotted, asat e5, and at the base of this slotis formed a notch 458. Projecting radially from the seat ll is a in i6 which rides in the aloe Llvand Whic when ehe collar is fully raised engages in the notch 453. This pin ffl@ is provided with a roller which rides in the slot 4.5. A not l? larger than the slot engages over the pin. Non', il the collar ll2 be ro tatecl in one direction, it will be obvious, that the Wells of the slot will rifle upon the pin and the collar vvill be moved upward with relation to the pin and that when rho collar is rotated in ehe opposite direction the collar will be drawn downward. For the urpose oi easily rotating this collar and olding it in its rotatably adjusted position,

l provide a screw pin i8 or sel', screw which passes through the collar and which when screwed in, 1s adapted to engage with the lace oi the ortion 17. This pin may have on il; any suitable handle whereby the collar may he rotated by hand, but preferably and as illustrated, l provide a handle 49 which is ol considerable lenglh and which has a exible or universal joint at 50 with the pin 48. The handle is provided at its extremity with a hand wheel l wherebyitmay-be rotated. inasmuch as the joint at 5G is universal or llexible it is possible to extend this handle in almost any direction and yet secure a proper movement of the collar and a proper adjustment of the ser screw 48. This makes it extremely convenient `for the engineer. By ushing u on this handle t9 in one directlon the co lar will be rotated to cause its elevation and the consequent elevation of the head 2l. This through the action of the spring will cause an elevation of the rocl and the consequent increased opening of the regulating valve to which the valve rod sections 9 and l() are connected. By drawing upon the rod 49 the collar may be reverseljv turned which will cause the lowering of the head 2l and the consequent lowering of he valve rod sections and the closing of the valve. Thus, any desired speed may be easily secured and inasmuch as the valve rod sections 9 and lO'lnove together with the heads 2l and 3l, it will be obvious, that the governor will operate in the saine manner or all speed adjustments. ln other Words, after the opening of the valve has been regnlated the governor will operate no control this valve in the usual manner and hold it ints adiusted position. lf the collar -l2 be rotated in one direction to its full extent it will not only lift the head 2l and the valve rod, but it will completely disconnect the gear 28 from the gear 8 and will holdthe valve in its fully open position. Under theee circuxnsances, of course, the shall: will rotate without, in anyv manner retelling head 2l.

Mounted ehe brochet. l is a shalt 52, one end or which is cranked as at 53 and supported nnen this cranked end is an idler pulley 5e which is a hell tightening pulley to the extent lhat it rests upon the loeltJ 7 and is supported thereby. li' the belt 7 should break the idler pulley will drop and the shaft 52 he rotate-cl. l the belt breaks il is necessary that steam be immediately shui; offend to this eneh'this shaft 52 is operatively connected to the latch I2 to cause a retraction of the latch and a disengagexnent of the rod section 9 from the rod section l0 upon a dropping of the idler pulley 5l. "lo` this end l mount upon the shaft 52 the small Winding drum, 55 as shown most clearly in Fig. 3, and attached to this winding drum and to the bent end 13 of the latch 12 is a chain 56. Now when the pulley 5l drops by the breaking of the belt' the drum 55 will be'turned in the direction of the arrow 53 which will wind np the chain and Withdraw the detent tooth 'il `from. its engagement with the notch l5.

Only a very slight movement of the device is required. es soon as this occurs the coupling 11,/tl'1e shaft 9 and the lotching device will drop, shutting oli' the regulating valve.

ln many cases, as for instance where the traction engine is traveling upon a road, it is necessary to provide means for not only disconnecting the governor upon the driving shaft, but for preventing the dropping of the idler -l when the belt 7 breaks, and thus prevent the steam from being shut-olf in case the belt-breaks. For this purpose, l

rovide u )on the shaft 52 a hook 57 which is ada tecl to engage over the pin 48 when the colar 42 is fully raised and resting in the notch 45, that is when the parte are in the position shown in Fig. 2`

'lhc operation of lny invention will be ohvions by what has gone before. Under normal circumstances the shaft 5 is driven by means of' he heit T and motion is comlnunicated to the head 2l throngh the gears S and 28, and this in turn cannes rotation of the balls 39 and of the head lil. lf it is desired to increase the speed of the engine without changing the belt l', the collar l2 is shifted to any extent required. rl`his will raise the valve rod suiciently to open the regulating valve to a degree commensurate with the deared speed o1? the engine. lf the speed of the engine increases beyond this point, the governor balls will liy outward and the valve rod will move downward against the force of the spring rl`he spring 29 under these circumstances will keep the gears S and 28 constantly meshed. ll" it desired to entirelyY disconnecl the governor from the shaft 5 and hold the hrottle valve wille open the sleeve 42 is turned suiiicicntlv around to canse it to be iifled to its extreme onward poeiion upon pin e6 and under loo lli)

these circumstances the gears v528 and 8 will be entirely disconnected. @When thesleeve 42 is liftedv to its extreme upward position and the pinf restsv within the notch 45, then the hook 57 will engage with'the pin 48 if the belt 7 breaks. If thel belt tighten.

ing pulley is used andthe belt breaks', it is obvious that, immediately the lower section of the valve rod will be released from its engagement with the upper section and the valve rod will drop, thus closing the governor valve and stopping the engine.

The advantages of my invention are as follows: The governor can almost instantly he adjusted for any desired s eed or by shifting the collar 42 still fart er around the seat 1T, the governor may be thrown out of service, which thus takes all unnecessary wear andvstrain oli the governor. This is particularly necessary when traveling on the road. When the governor is thrown out of service it is obvious that a full boiler pressure is at the engineers hand. This is particularly convenient in traction engines as it not only takes steam from the governor but it permits the engine to run at a good speed. In the ordinary traction engine it is necessary to remove the belt 7 in order to disconnect the governor and this is a considerable trouble and this necessity ofcontinually taking 'olf and putting on the belt in order to "et the desired speed out of the engine for all inds of work is one'of the great nuisances incident to traction engines as ordinarily constructed. With the ordinary governor, if the traction engine is running upony a road with the belt left on. suflicient'speed cannot be secured to malte good time on the road. Further than this. there willbe constant langer of accident because, ifywhen on a hill. the belt 7 should breuk, it wouldallow the regulating valve to drop and close and it would practically be impossible to hold the traction engine under these circumstances.

. In case the belt should break with' my improved governor while on' the road, the hook .37 would catch upon the pin 48 and would hold the pulley fromvdropping down and thus will prevent the steam from being 4shut oil'l in case the belt breaks. therod 49 end universaljoint '50 the collar 4Q may be shifted from aisnost lany direction. This Ais particularly necessary for traction engines. but is not necessary for stationary engines. as in this case 'a small'handle may he used in place of the relatively long -handie connected b v the universal jointfiB.

.. ering governor. The governor can be edf" lt' will be seen that any desired belt pulley 6 may be used in connection with this governor without in any way affecting the operation of the governor itself. lt will also be seen that l have very much simplified the lL ifovernor ordinarily used. such as the Piel:-

By providing justed to any desired speed of the engine while the engine is in motion and can be thrown in and out of gear while the engineJ is running without injury to the engine orV to the governor. When the engine is running if the bevel gear wheels are thrown'into meshy the teeth will not strip because the stationary work to road traveling. It is usually necessary to so remove the governor belt because the speed of the engine, VWhen it is stationary and used for operating inachinery is not sullicient to let the engine travel fast enou h to lmake proper time on a -good road. Un er these ciroums'ta'ncesit is customary to remove lthe belt and'thus leave the governor'` idle. V'.lhijs is "entirely obviated by my improvement, whichlwill prevent yd'isi connection between vthe governor Iand its y,

driving means and thns permitsa fhll boiler' pressure'being used toroad running.` l v It is reiterated that, wheni the collar 421s lowered and the gears 28 and 8 are 1n mesh,

iso

then, if the belt 17 breaks, the hook`57 cannot engage with the pin 48.` It is only wleii the gears 28 and 8 are out of mesh, as in Fig., 2, and the belt breaks that the hook will engage the pin 48, in the manner shown in rig. 5. This will prevent the cuainggge of the steam. Y N The belt tightening and the means for automatically closing the steam valve u on g breakage of the belt are reversible so t at,

when it is necessary to run the beltin the opposite direction, the lugsu'pon which the shaft 52 is pivotally su ported are east upon opposite sides of the y latching .arrangement and winding drinn racket 4 sol `that the;V

ich

could be placedon the other'sidc of "the,

bracket. l

While I have'illustrated'what I ,believe 1. A governor of thecharacterdcscribed including a driving gear, a driven gear, gov-A.. ernor weights operatively connected `to 'the driven gear, a valve rod controlled 'by said governor weights and means for [shifting the gears relative to each other to thereby connect or disconnect said gears.

2. A governor of the character describedv including a drivin shaft, a gear wheel lmounted thereon, a `riven gear Wheel, ernor weights operatively'connected to the driven 'gear wheel rto rotate therewith, a

. v1in` to be the best form of my invention, I do p v iis.

its

valve veel operavively eonnected deonvrolled lov elle governor weights, end Ineens for Shilling the geen' wheels inito or out el? engegeinene with eeeli einer.

3. A governor of elle @hemel/er doiibed including e drivieg slieit, o beveled' geen' wheel mounted 'lneveom e driven beveled goal Wheel, a rotatable element ifo which lille driven beveled geel' vvlieel is connec, governor weights operatively connected llo seid elemen, e valve rod operatively eonneeied lo and eonrolled by seid governorweiglils, and Ineens for Shilling said elemeni lo Covey the geni' vvlieel ooeeilng therewith into ov outo mesh with the driving gear Wheel.

fl. A governor of lelie character described including1 e delving snail, a beveled gein' Wheel mounted thereon, e driven beveled gear wheel, e i'oetable element operatively oonneeied io lle delven gear vvlieel to ro ieee llierewitll, governor vvei lits eonnecled to *the rotatable elemenl, e va ve rod operetively connected to elle eovernor Wei lits and controlled l'iei'eliy, resilientmeans or urging the vol-a'able element toward the driving beveled gee? Wheel, and means for shiftin the voleielole element against the force on the resilient means lo thereby carry lle driven gear wheel out of mesh 'Wilx the drivinggeei wheel.

5. Ln e govern-or o'f elle. character described, e valve, e valve-rod, upper and lower rotatable elemens, elio upper rotatable element controlling elle movements of the valve-Tod, ovevno nieolienism connecting elle upa ev end lovve rotatable elements and controlling the movements of elle upper rotatoole niemliez, n messy element splined to the lovvev ioaielile element and having o.. limited longitudinal movemen thereon, and means f moving elle lower rotatable yelemenaJ Wellin Certain limits independently of the roleiv elenien; foi: adjustment of the valve, oi oo move looeli elle lowei1 fot-table and elle votmy elements logetliei' 'to thi-ovv the goveinor mechanism ont of aeiion.

6. goveinoi of elle elinmeer speeled, valve rod held :lgziinst ioeion bui free love longilndinnlly, e o'ai'v :ind

elly inovniile element mounted Coeinlly vvirtli elle volvo rod. governor Weights opeelivelv connected with 'the valve rod and vvile iii-e volevi' und longiudinellv movnllle elemen, o iozlj; aliiving element splinwl lo lhezoiznv :1nd longtlnlinellymovable 'ele men, e oonioileble ioeiy oleinen eonner'wl to the roeixv end longiudinnlly movable elev meniio move liei'evvifli lint admit of ouali elemenl having :in independenl i-ozn'y move mene im'ozlrled lliei'eo, n snppoi'i for ille controllano ioriij.' element. und ifo-:willig ineens le'neen 'lille support :unl lie cow vrollnlvlz lozuy eleineni n impari :a longielemen, when roeed 22o edee en odjusf,u

mene of valve indepemlenll oi enlo-` inezie edjusiment by of ehe iveiglilzs.

l'. ln e. governor oli 'lie elieieeev epeeied, e velve nod lield ageins: volevion loin; free io nieve longivndinally, e volevy and longiiudinelly movelile elemenr, mounied eoexielly wiel; the volvo-rod, goveinor vveiglngs opereively connected willi ehe valve rod end vvieli elle rolery and longilndinelly movable element, e rotary drivin@r elemenlJ splined to elle rotary ond longitudinally movelole elemene and having e, limited longilndinel movement with refevenee lheieto, en opereting elemenl for the voler delving element, yielding means between ge vovo. end longitudinally movable eleinenlJ end l, e driving element to hold the letter in Contact with the operano? element delving e pant oi? elle longiudine movement of elle rotary eed longitudinellv movable elemeni, e conevolleble rotary element connected to elle relai-cy and longitudinally movable element lo move llierewith entedmi; oli eeen elemen havin en independent rotary movement impe ebeveto, e support for ehe oontiolleble rolsery element, and Cowling means beeween the support and the rolex-y element lo moai't a. longiludinul movement lo 'the vovery element when rotated lo edeol; en adinsnient' of elle vulve independeniI of iis eutomelie adjustement by means of elle overnoi weights.

8. ln e governor o? i e eheveeeee described, e driving snail, e beveled geen vvlieel mounted thereon, e valve rod extended at right angles to elle driving sloef, o, controlling valve conneeled thereto, e votatable element surrounding the valve rod, e beveled gear Wheel carried thereby end engagging the driving beveled gear Wheel, e spring bearing at one end against on operoltive portion of the valve rod and. et ils other end bearing against elle lest named vole.- eble elemene, the second iomielale element sinon'nding the valve ved, governov bells, operative connections between elle governor bells und the said roeeleole elemenes to eeuse e movenienlJ of the second named oeitelole element osveid the livel named elen'ienl upon am oue-ard nioveinen oi elle govenor 'lells, an operative connection lleliveen the second inlined rotatable elenien end `rhe valve rod, and ineens for shifting elle liisi named iozinllle @lenient and zthe valve iod, wlmi-olli' lo .secure :in edinsmenl o the valve independenly of elle eonliol of seid vulve by die governor lells.

9. ln n governor lle clieieelvev described. :i x'egnlating valve, e valve veel oonneced tlieieto, a lower rotatable eleinenl loosely surrounding the valve iod, e beveled gear wheel slidullljv mounted on bue Toteiilile with lne suill eleznen, e delving shaft eending et right ongles lo the valve ved, e beveled geen' wheel nionneed thereon lll@ ing with the rst named beveled gear wheel, an' lpper rotatable element loosely surroun g the valve rod, springs extending between and operatively connected to the upand iower rotatable elements, governor alls carried by said springs, a cap carried by the upper rotatable element and rotatably engaging the upper end of the valve rod, a coil spring surrounding the valve rod, bearing at its lower end upon the upper face `of the lower rotatable element'vand at its u per endhaving operative engagement with the valve rod, and means for raising or lowerin thelower rotatable element indeendent y of the beveled gear carried therey, to thereby raise or lower the val-ve rod, the upper and lower rotatable elements, and the governor balls.

10. In a governor of the character described, a regulatin valve, a valve rod connected thereto, a ower rotatable element loosely surroundin the valve rod, a beveled gear wheel slidab y mounted on but ro- Vtatable with the said element, a driving upper face of the lower rotatable element and at its upper end having operative engagement with the valve rov a spring disposed between the lower rotatable element and said beveled gear wheel, and means for raising or lowering the lower rotatable element independently of the beveled gear carried there to thereby raise or lower the valve rod, t e upper and lower rotatable elements, and the governor balls.

11. In a governor of the character described, a regulating valve, al valve rod connected thereto, a lower rotatable element loosely surrounding the valve rod, a beveled vgear wheelslidably mounted on but rotatable with the said element, a driving shaft extendin at right angles to the valve rod, a bevele ar wheel mounted thereon meshing with e first named beveled gear wheel, an ipper rotatable element loosely surroun 'ng the valve rod, springs extending between and operatively connected to the upper Yand lower rotatable elements, governor balls carried by said springs, a capA carried by theupper rotatable element and rotatably engaging the upper end or the valve` rod, a coil spring surrounding the valve rod, bearing at its lower end upon the upper face of the lower retatable eleincenso 12. In a mechanism of the character described, a driving shaft, a beveled gear wheel mounted thereon, a rotatable'element having an axis disposed at right angles to the driving shaft, a spring urging the rotatable element toward the driving shaft, a beveled gear wheel splined upon the rotatable element and normally engaging with the driving beveled gear wheel, yielding means urging the driven beveled gear wheel into engagement with the driving beveled gear wheel, a collar bearing against oneend yof the rotatable element opposite the spring and rotatable around the axis thereof, a cam face formed upon the collar, a fixed member with which the cam face engages to cause a shifting of the collar against the spring or against the rotatable element'upon a rotation of the collar, and means for causin a rotation of the collar to a predetermined extent and for holding the collar in its rotatively adjusted position.

13. In a governor of the character described, a regulating valve, a valve rod formed in upper and lower sections, the lower section being connected with the valve, centrifugally actuated controlling mechanism connected to the upper section, an idler adapted to rest upon a band and be supported thereby in a raised position, means normally connecting the two sections of the valve rod to each other, means actuated by a fall of said idler for disconnecting said sections, said means including a latch normally connecting the two sections,

a barrel operatively connected to the arm to rotate in one direction upon the fall of the arm, and a flexible connection from said barrel to saidlatch to cause a withdrawal of the latch upon a fall of the arm.

14. In a mechanism of the character de cranked arm at one end, a pulley supported thereby and adapted to rest upon a meme@ er;

beit E aig from the ise named pulley, a from said barrel to the latch member, and 10 coup g inciosing the joint between the means movaoe into posit-i011 to prevent the upper and lower sections of the rod, a loiigi dropping of said idler pulley.

udnally movable iatchiiig member passin eestimony whereof aiix my signature ing through said coupling and having a in presence of two Witnesses.

tooth engaging with the uppei section of ELSHA CRAFT. [11.5.] the rod, a spying heid said iatch member in Winesses: such engagement, a barrel momie@ upon the N. V. Gmiim,

second named shaft, a exibe ooimection K. C. BRAsmAR.

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