US889417A - Gas-motor engine. - Google Patents

Description

P ATENTED JUNE 2, 1908.

' G. B. WATTLES.

GAS MOTOR ENGINE. APPLICATION FILED JUNE 12.1906.

IN YIN TUE' ATZ' an; 2

2 SHEETS-SHEET 2.

ENEYI.

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CYRA BISSIJLL \VATTLES, OF PROVIDENCE, RI-IODl-I ISLAND, ASSIGXOR 'IO PROVIDENCE GAS MOTOR COMPANY, OF PROVIDENCE, RHODE ISLAND, (.TJHPOI'LX'IIOX OT: RHODE ISLAND.

GAS-MOTOR ENGINE.

0 all whom it may concern.-

Be it known that I,CYn.-\ BISSELL Wm- TLES, a citizen of the United States, residing at Providence, inthe county of Providence and State of Rhode Island, have invented a new and useful Improvement in Gas-Motor Engines, of which the following is a specification.-

This invention has reference to an improvement in gas or hydro-carbon engines and more particularly to an improvement in valve controlling mechanism for gas motor engines, reference being had to United States Letters Patent No. 509,981, issued to me December 5, 1893, for gas motor engines, to which my present invention is particularly adapted.

In the use of gas engines for automobile or similar purposes, it is required at times to instantly cut out or disconnect the engine from the running mechanism of the car and apply the brakes, when meeting a sudden or unexpected obst uction orfor other causes. This sudden disconnecting of the engine, which may be running at full speed, will allow the engine to race, causing excessivewear on the running. partsand liability of breaking I the same, also in the usual form of gas engines having two or more cylinders, both cylinders are in operation at the same time, when at times the power of one cylinder is sufiicient to do the work required, and if the.

power of one cylinder is cut out through the spark mechanism the operative parts of the cylinder will continue to run and will use the same amount of gas as when under working conditions, thus causing an unnecessary loss in friction and expense. This condition also requires ower from the working cylinder to run thei le arts of the cut-out c linder and to overcome tiie compression of t e same,-thus reducing the power of the working cylinder.

The object of my invention is to improve the construction of a gas engine having an outer annular cylinder, an inner circular cylinder of smaller diameter arranged concentric therewith, pistons fitted to the cylinders and intake and exhaust valves fitted to each cylinder, whereby the exhaust valve of the outer annular cylinder is controlled by a governor ,which acts automatically to open the exhaust valve when the engine has reached an excessive s eed and to close the same when the engine as returned to its-normal speed.

A further object of my invention is to pro- Specification 0! Letters Patent.

Application filed June 12, 1906.

Patented June 2, 1908.

Serial No. 321,357.

vide the engine with mechanism operated by a foot or other form of lever whereby the exhaust valve of the outer annular cylinder may be opened and the engine run by the inner circular cylinder and its operative parts, when the power of 'one cylinder is sufficient to do the work required.

A still further object of my invention is to automatically cut out the sparking to the outer annular cylinder when the exhaust valve is opened and to automatically connectthe same when the exhaust valve is released.

My invention consists in the peculiar and novel construction of a gas motor engine having an outer annular cylinder, an inner circular cylinder of smaller diameter arranged concentric therewith, pistons fitted to the cylinders and connected to the crank shaft, intake and exhaust valves fitted to each cylinder, a governor, mechanism operatively connected with the exhaust. valve for the outer annular cylinder and the governor, whereby the exhaust valve is automatically opened when the engine reaches an excessive speed and closes when the engine has returned to its normal speed, mechanism adapted to be operated by a lever and operatively connected to the exhaust valve, and an electric switch operatively connected with the.

exhaust valve mechanism and a source of electric energy (not shown), whereby on tion, as will be more fully set forth hereinafter and claimed.

Figure 1 is a vertical side view of the engine showing the head, cylinders and pistons in section, the automatic exhaust valve opening mechanism intermediate the valve and the governor in the position it would assume with the engine sto ped, the foot lever mechanism for opening the exhaust valve in its normal osition, and the electric switch in the close position. Fig. 2 is a detail view part1 in section of the automatic exhaust valve opening mechanism, showing the same in the position it would assume in opening the exhaust valve, the foot lever valve opening mechanism in its normal position, and

the electric switch in the open-position, and

I y' ppor d ni he bearings 2 chassis of an automobile, b the frame of the engine (which is of the four cycle type) supported on' thechassis, c thecrank shaftsup ported in suitable hearings 'in thefra-me, '11 the crank disks shown in broken lines in Fig. 1, e the connecting rod, the annular ,exter nal cylinder, 9 the stationary-piston, h the head i the inner trunk cylinder pivotally sew cure to the, connecting rod .and forming;

1o intake-valves; o and'p the mechanically op erated iexhaust valves,- 1' the? governor, s a

connecting theautomatic exhaust valve 4 opening mechanism, intermediate the ex- ;haust=-valve o andthe governor r; t the foot lever exhaust, valve opening mechanism o'p- "-eratively connected with the-exhaustvalve o, and 'v the {electric switch of'niyvimproved gas motel-engine; .i .4 2o The intake valve lcontrols an intake port wh ch oginsinto, the; annular external cylin-. 'der f. e intake valve e controls an intake portivhich opens into. theltrunk cylin- {de'r i throu h -the stationary piston'g. The. 1 exhaust .v 've' 0 controls an exhaust port .yvhich iron; th mules ext r al cylin the'exhaustvalve 1) controls an,

' exhaust rt which leads from the trunkcylinder tkoughfthc stationary piston g,- 3 igfll; "Thecx haust valves are; operated mech'anica lly..-bghmechanism con-- with the ongihc s ft c'in the usual vvay; Eachwylinderfhasa spark plug 'conv-"nected by-wvires' to-as'ouroegof-clectnc e'ner a tin er, not she" The actionof eac H n. gylinder s theiwe .ny iqurjcycle ga Jgine, the'e 't losio'ns akin'g" place alternately gig-'thecylin' era-thus giving-aworking stroke 01' eacli' revolution'o fthe'engineu 'j-The govcrn'orfrhus' the usual balls 4 4 con- ';nected to the vertical shaft 5 by the pivoted I 6 6 and to the sleeve 7 hythe links 88.: g'l hejshaft' and sleeve? are To tatably-support th'eibearin'g's'i) 9 o'n the engine framefplndthe shaft is revolved byia tram'ofgear'sv D c asshown i nfii {13: v The. automatic exhaust? val-vea-o' 'e'ning 1 consists of"a rshow-horizontal il lower end of the' sleeve' of thrmgovempr is;-rotatah l secured; a =vertical' 1-2,;piv6tally 's'ecu at itslip'p'er end to the 11; a toggle level; 43- -p1votally seto a fixed stud 14,41 "gle' -lever- 15 the slot'l6, and'z-the--L-s' aped end 17 Winch is the slot" 1s ivom11ysfi-Ppori-ed.

g and pivotally secured together joining ends: andz wi-the loweren m1 r y-1-epin2 M 4..

- 22 having the-" cam-shaped'end; rec1pro+ 4 andg25in the annular piston 7:, l and-'m'the automatic .30 of. the be Figs. 1 and .2.

I 4 .10.:opetatively connectingthe haft 5 with r theenginesbaft :nul'ar cylinder f.

- position to bring-the amend 23.u nder the f t e s smleaez s -26m ing tlie 27 and the set bolt 1 2 8 is ad- .justab ly secured to the bar 22 by the set bolt- 28 in imposition-for the pin 27 toent'er thc'= slot 1-8 in the' L-shaped end of the toggle leyer; A hell crank lever 29, having the "vertical a11n30 and the horizontal arm 3] in thefengl =01" whichjs a slot 32, is pi'votally secured to afi ied stud 33in-a position for the!" --p n v2-l in-theadjoining ends of the toggle levcrs 13 and 15 to enter the-slot 32 in the end of the arm 31 and a weight 34 securedto the lower end of a- .110d35 which is i \"'otall secured at its u per-end-to' the enr lof' the'arpi crank lever 29, as SlIOWIi Hi The. foot lever exhaust valve *0 eniifg mechanism'lt consiststof'a horizontal a having (Learn-shaped end 37 corresponding" to the cam end .23 onthe'bar2 2 and -ecipjro cally'supported in the bearings-24 and in" 35 :a position to bring the cam end .37 under the stem of theexhaust valve 0, as shown-in 2. 'The opposite end of'the bar3'6' 1s pivot allyconnected to a foot lever 38, winch is 1 pivotally secured to a fixed jsupportj39'. A,90

coiled springl40 is'connected,to the her 36 and to a fixed su port, the tension of'th'e' "spring holding the min its ,normal position.

The block 26 is adjusted on'the'har 22'so'as to give aclcarance onlost motion between the cam end .23 and the stem of the exhaust valve 0, thus allovving the engine to .run at its normal speed without opening the valve.

The electric switch '0 consists of "an insu latingblock 41 secured ,tothe chassis a and v having the contact points 42 and 43 and a e spring=contact-arm 44 having .the, T.-shaped end45 and secured to the horizontal bar 22 of the exhaustvalve mechanism 5: in a posi-g 'tion for the T-shapedendto engage ante 1 I matically withthe contact oints'42 and 43 v and close the,circui;t, when t 'e exhaust valve.' mechanism 818. 1n.1ts noperative position, as SllOWTl 1n F 1g. 1, or to open vthe OlI'Qlllt when the lexhaust valve mechanism is iii its op'er: 11o ativfe osition, as shownjn- Eig. 2 46 le S from a source of electr c-energy (not shown) to? the contact point 43, ands wire '47:

leads from the contact pointi42 ,tofaspark" plug (not shown) connected to theputeram 'When.ithe engine increases {or I t A commences to race by-:the ,disco c mg'of the engine from;the driving mechanismof thecar,-0r when both cylinders are giving an ezgcess of ower or-speedibgiond that-re Petite L sha ed end by fa pin' 19 on ja'- fixed o "stud-"20 an extending through .th

uired to o the work, the b ls of 'the .gov- I ernor are thrownoutward bythe increased 15 move the bar 22 with the and theswitch v, as shown in 2, and auto- 4 so I,

' (i wit-tile outer annular-cylinder .190.

'fi, When the ower of the cut out cylinder is again require themechanism acts automat 'ica'lly in a reverse direction and the valve and ,switch close through the governor resuming its normal running position.- The exhaust valveo is also 0 ene'd at any time. required independent of t 1e governor by moving the foot ever '38 which acting through the bar 36 'bring's'thecam end 37 into engagement with the stem Oflthe. exhaust valve and opens the same. When the ressure of 'thefoot is removed from 'the/ ever the tension of the .9 rings moves the leverand bar 36 back to eir normal osition and releases the valve, whichclos'es t rou h the tension of the usual coiled spring on tie stem of the'valve, as shown in Fig. 1 A

-I s is evident that the construction of the mechanism intermediate the exhaust valve 0 and the overnor 1' could be varied without material y afi'ecti.='--'r the spirit'of my inven- Having thusdescribed my invention, I

claim asnew and desire to secure by Letters 11. Agas engine having an 0uter annular cylinder, an inner circular cylinder-oi smaller diameter arra ed concentric therewith, pistons fitted to t1e\cylinders, intake and exhaustvalves connected to each cylinder, agovernor, and mechanism intermediate one of' said valves and thegovernor, whereby on the engine attaining an excessive speed the said valve is opened automaticallyand the g'power-of the engine reduced to one cylinder. 2', ,A gas-eng1ne having an outer annular 'e'ylind'er," .-an inner circular cylinder 'of smaller diamete'n'. arrangl'adconcentric therewith, pisit e cylinders, intake and exhaustvalves connected to the outer annular cylinder, intake and. exhaust valves connected to the innercircular cylinder, an elec tricswitch, a'governor, and mechanism operativelyconnectin' the exhaust valve on the outer annular cy inder with the governor, whereby on the engine attaining an excessive speed the exhaust valve an 1 switch are opened automatically and the power of the engine reduced. tothe power of one cylinder, as'described.

3. 'Agasengine having an outer annular .cylinder,-an inner circular cylinder of smaller diameter arran ed concentric therewith, pistfons fitted to t e cylinders, intake and excylinder, intake and exhaust valves conhaus't valves connected to the'outer annular nected to the inner circular cylinder, a governor, mechanism operatively connecting the exhaust valve on the outer annular cyhnder with the governor, and mechanism operatively connecting the exhaust valveon the outerannular c hnder with a lever, whereby theexhaust va ve is opened or closed automatically or by operating the lever, for the purpose, as described.

4. The combination with a gas engine have in an outer annular cylinder, an inner circu ar cylinder of smaller diameter arranged concentric therewith, pistons fitted to the cylinders, intake and exhaust valves c'on- 1 nected to each cylinder and a governor, of; an automatic exhaust valve opening mechanism. com rising a short horizontal arm 11 in which the o wer end of the governor sleeve is'rotatably secured, a vertical arm 12 pivotally Srcured at its upper end to the arm '11, a toggle 'lever 13 pivotally secured to a fixed stud, a ,1 toggle lever 15 havin the slot 16, and the L- shaped end 1 7 in whic 1 is the slot 18 pivotally su ported at its L-shaped end by apin 19 on g0 a med stud and extending through the :slot,.-,- 16 andpivotally secured together at their adjoining ends and to the lower end. ot the arm 12 by a pin 2-1, a horizontal bar 22 having the can] shaped end 23 reciprocally supported in g5 hearings in a position to bring the cam end, 23 under the stem of the exhaust valve on the outer annular cylinder, a block 26'having-the,

pin 27 and a set bolt adjust'ably. securerhto the bar 22 by the set bolt ina position for-the, 9o; pin 27 to enter'the slot 18 in the L-shaped end of the toggle lever -15,whereby-the;ex-;

haust valve is opened or closediautomatic-ally for the purpose as describedrw ,1

5. The combination with. a-gas enginehav-lss ing an outer annular cylinder, an inner eircular cylinder of smaller diameter 'arrangejdconcentric therewith, pistons fitted to the cylinders, intake and exhaust valves cone nected toeach'clyilinder, and a governor',,;0,f 100 an automatic ex aust valve opening mech-' anism comprising a short horizontal arm. 11,

in which the lowerend of'thegovernor-sleeve3 r I is rotatably secured, a vertical a m 12 pivot-.-

ally secured to the arm 11, a toggle lever 13 ivotally secured to a fixed stud; a toggle ever 15 having the slot lfiand the, L-shaptsd end 17 in which is the slot 18 pivotally sup-,-

ported at its L-shaped end by a pin 19-on. a fixed stud through the slot 16 and pivotally secured together at their adjoining ends and to the endof the arm 12 bye .pin 21, a=horivzontal bar 22 having the cam-shaped -end,23.

reciprocally supported in bearings ina -posi-gition to bring the cam end 23, under'the, steinof the exhaust valve on the outer annular cylinder, a block 26 havin the pin 27 and a set bolt adjustably secured to the bar 22 by the set bolt in a position for the pin'27 toenter the slot 18 in the L-shaped end of the toggle lever 15, a bell crank lever 29 having the vertical arm 30 and the horizontal arm 31 in the end of which is a slot 32 pivotally secured to a fixed stud in aposition for the pin 21 in the toggle levers to enter the slot 32 in the arm 31, a weight 34 secured to a rod 35 which is pivotally secured at its upper end to the end of the arm 30 of the bell crank lever,

a bar 36 having a cam-shaped end 37 reciprocally supported in bearings in a position to bring the cam end 37 under the stein of the exhaust valve, a foot lever 38 pivotally secured to the'opposite end of the bar 36 and rotatably secured, a vertical arm 12 pivotally to a fixed su port, and a coiled spring 40 attached to t e bar and to a fixed support, whereby the exhaust valve is opened or closed automatically or by the lever 38 for the purpose as described.

, 6. The combination with a gas'engine havii an-outer annular cylinder, an inner ciren ar cylinder of smaller diameter arranged concentric therewith, pistons fitted to the cylinders, intake and exhaust valves con; nected to each cylinder and a governor, of an automatic exhaust valve opening mechanism coniprising a short horizontal arm 11 in which the lower end of the governor sleeve is rotatably secured, a vertical arm 12 pivotally secured at its upper end to the arm 11, a toggle lever 13 pivotally secured to a fixed stud, a toggle lever 15- having the slot 16, and the L-shaped end 17 in which is the slot 18 v pivotally supported at its L-shaped end by a pin 19 on a fixed stud and extendin through theslot 16 and pivotally secured together at their adjoining ends and to'the lower end of the arm" 12 by a in, a horizontal bar 22 having the'cam shape end 23 reciprocally supported in bearings in a position to bring the cam end 23 under the stem of the. exhaust valve on the outer annular cylinder, a block 26 having the pin 27 arid a set bolt ad'usta'bly secured to the bar 22 by the set bo t in a position for the pin 27 to enter the slot 18 in the L-shapedend of the toggle lever, 15, and an electric switch having an in-.

sulating block 41 secured to the chassis a and having the contactpoints 42 and 43 and a spring contact arm 441havi'ng' the T-shaped end 45 and secured to the horizontal bar 22 of the exhaust valve mechanism in a position for the T-shaped end to engage with the com tact points, whereby the exhaust valve 0 is opened or closed ;automatically and the, switch controlled automatically, for the purpose as described.

'7. The combination with a gas engine havi an outer" annular cylinder, aninner circ at cylinder of smaller -'diameter arranged.

concentric therewith, pistons fitted to the cylinders; intake andexhaust valves conlever' 15, a bell cra vertical arm 30 and the horizontal arm 31 in rtlieend of which is a slot 32 pivotally senected to each cylinder, andqa governor, of

an automatic exhaust valve opening mechanism comprising a short horizontal arm 11, iii which the lower end of the governor sleeve is secured to the arm 11, a to gle lever 13 piv0t-"- ally'sec-ured-toa fixed stu a toggle lever 15 having the slot 16 and the L-shaped end 17 in which is the slot 18 pivotally sup orted at its L-sha ed end by a iu'19 on a I through t e slot 16 an pivotally secured together at their adjoining ends and to the end of the arm 12'by a pin 21, a horizontal bar 22 having the cam shaped end 23 reciprocally b0 slot 18 in the L-sha cured to a fixed stud in a position for the pin 21 in the toggle levers to enter the slot 32 in the arm 3-1, a weight 34 secured. to a rod 35 which is pivotally secured at its upper end to a the end of the arm 30 of the bell crank lever, a bar 36 having a cam-shaped end 37 reciprocally supportedin hearings in a ,position tobring the cam end 37 under the stem of the exhaust valve, afoot lever 38 pivotally s e-' to a fixed support, and a coiled spring 40",

e bar and to a 'fixedsupport', whereby; the, exhaust valve is openeduor curedto :the opposite end of the bar 36 and attached to t d end-of the tog le lever 29 having tie ed stud closed automatically or by the lever 38, and

an electric switch having a. member-,with' contact points in a-fixed position anda mei'n her adapted to engage with the contact points and operatively connected with the exhaust valve openingmechanism, whereby the exhaust valve is o ned or closed automatically and the switch controlled automatically, for the g, ose as-described. In testimony, w ereof I have signed my name to this specification in the two subscrib' witnesses. C- A BISSELL-WATTLES. Witnesses:- I a AIME. Haena'rr,

Jr A. MILLER.

presence of

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