US1065850A - Starting device for engines. - Google Patents

Description

H. M. SHEER.

STARTING DEVICE FOR ENGINES.

APPLICATION FILED NOV. 22,1912.

1,065,850, Patented June 24, 1913.

3 SHEETS-SHEET 1.

WITNESSES INVENTOR Altar H. M. SHEER.

STARTING DEVICE FOR ENGINES.

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m m w n A Mi 75,922.71? I HENRY M. SHEER, or QUINCY, ILLINOIS.-

STARTING DEVICE ENGINES.

sp cification oi Letter Pa n Patented J line 24, 19-13.

Application flied November 22; ion. Serial No. 732,974.

To attic/10m itmay concern:

% Be it known that I, HennnM. SHEER, a citizen ofthe United States, residing at' Quincy, in county of Adams and State of. Illlllfiln, have invented certain new and usei'ul Im 'irovcments in Starting Devices for El -zines, of which the following is a specification.

My invention relates to an. improvement in starting devices 'for engines, and more particularly to that type of starting devices which is intended to be used with an internal-combustion engine upon mqtor svehicles, although it will, of course, be understood that it is applicable to engines used in other connections.

The object of this invention is to provide a device of the character described in which the combustible mixture. is supplied to each of the cylinders and to the intake manifold,

a spark in that cylinder about to'fire igniting the mixture introduced thereinto, causing the crank-shaft to be turned and the'lignition system to be operated so that the charge in each of the 'cylinderswill be fired-at the proper time. During this-operation of the eng ne, additionalcharges of explosive mixture are drawn in from the intake manifold, and the gasolene or other fluid is agitated by the charge introduced into the manifold And the operation of the engine sufiicie'ntly that it will volatilize even in the coldest 0:13 weather.

A further object is in the provision of a device which may be operated to introduce air into the cylinders in case the mixture introduced is too rich and is not ignited by the spark I still further provide a device which will accoinplish-t'ese objects and which may be operated wi i the foot without the necessity of the operator changing his position in the car.

This invention further consists in certain other novel features of construction and combinations of parts which will be hereinafter fully described and pointed out in the claims.

In the accompanying drawings: Figure.

1 is a view with parts broken away toshow my invention applied to an automobile, Fig.

2 is a vertical sectional view through the pump casing showing the parts in their nor-. mal position, Fig. 3 is a view similar to Fig. 2 but showing the parts in the position at which the gas is permitted to enter, Fig.4

is an enlarged detail view .of the gas control mechanism, Fig. 5 is a transverse sectional view on the line 55 'of Fig. 3, Fig. 6 is a detail sectional view of a form of spark plug socket adapted for use with the startingdevice, Fig. 7 is a transverse sectional view on the line 7-7 of Fig. 6, Fig. 8 is a. detail erspective view of the gas-valve screw, and

ig. 9 isv a detail perspectiveview of the inner endof the pump plunger. 4

This device is more particularly. adapted for use in 'connection with an acetylene gas tank to supply the combustible mixture, although, as will be evident from the description, it is equally applicable to any system in which a combustible gas is introduced under pressure, and with slight variagions might be adapted for use wlth liquid .uel.

In Fig. 1, I have shownthe device asapplied to a six-cylinder motor, and inthis connection the casing A is held in place to be'easily'accessible to the foot of the operator on the dash B of the car. Gas .is supplied from the tank C, and from the casing Ait passes to the cylinders D, E, F, G,

II, and I, and also to theintake manifold J which has connected therewiththe usual carbureter L. The pump casing A has a large bore 1, and two smaller bores 2 and 3 formed axially therein. The bores l and 2 are preferably ground smooth and the piston lis mounted to slide in the larger. This piston? has the usual packing-rings, and on its lower side has a key-way 5 formed to receive a key Scarried by the packing-ring 7 secured on the outer end of the casing. A head 8 is secured to the piston 4,. and has a tread surface 9 formed thereon. A stirrup 10 is pivoted to the head 8 in position to vfit 'overthe'foot when the foot engages the tread 9;

Transverse bores d, e, f, g, h, and z' are formed through the wall of the casing A to'eommunicate with the bore 2 and the transverse bores are plugged at their outer ends. Counterbores k, l, m, n and 0 are formed in the casing to communicatewith I the transverse bores d, e, f, g, h and i, and =fu'clleads d e-. f, g, It, 2" are secured in the counterbores and extend to the cylinders D, E,.F, G, H and I respectively. A valve ll'is secured on the inner end of the piston 4 by a screw 12 and is intended to fitinto nected with a circu'n' fere'ntial groove 19 is.

' received in the bore 13 of the chamber M.

This valve has endwise sliding movement in the bore 13, and screw 20 having a T-bore 21 is received in a bore 22 formed in the wall 15 and is screwed into the valve lti. The bore 14 is screw-threaded. A spring 23 is received against the head of the screw 20 to hold the head tight against tlie wall 15 and the'body of the screw in the bore 22, so that the ends of the T-bore 21 are closed and the tension of this spring is regulated *of the spring 23- when the piston is moved.

by a follower block 24 having an opening 25 therethrough. A plug 26 is screwed into the outer end of the bore 14, and a gas lead 0 extending from the gas tank C is connected therewith. A bore 27 is formed through the wall of chamber M to communicate with the axial bore 13 and is so positioned that when the valve 16 is moved against the 'prcssureo't the spring 23, the groove 19 will come into registry therewith.- A, collar 28 is received over, the chamber M and has an internal groove 29 positioned to be in' registry with thebore27, This collar is secured to the ch'amberM in such a manner that any leakage there'hetween will be prevented, and a l??? con'neets it with the intake manifold j g The valve, 11 carried by the piston t-has a groove 30 formed 'circumferentially there of and transverse bores fcommunicating with this groove and with the counterbores 32, which counterboresare so positioned that they open into the bore 3 of the casing A. The end of the valve-plunger 16 extends from the bore 13 into the bore 3 of the easing A, andthe screw 12 carriedby the piston is in position to engagewith this valve lunger and depress it'agains't the tension to its innermost stroke. A slot 33 is formed across, the end of the plunger'lti and communicates with the bore 17 thus, when the.

piston is moved to itsinnermost stroke, the plunger 16 is" forced inwardly against the tension of the spring23, and the T-bore of theqscrew.20 is moved from the bore 22 of thewall 15, sothat the gas can pass into 'the chamber formed by the bore 3 of the casing. Also when the parts aremoved to this position, as shown in Figs. 3 and 4, the groove 30 of the valve 11 is in communica- }ion with the transversebores d, c, f, g, 11, i, with which the fucl leads v.to'the cylinders are connected, and the gas ,is permitted to pass to the cylinders through the transverse bore 31 and counterbore 32, which communicate with the chamber formed by the bore 3 to which the gas is supplied. A check valve 34 is received through the casing and also communicates with this chamber. This check-valve is open from the outer air and is intended to supply fresh air to' be mixed with the gas. As a means of holding the piston, in its normal position, as shown in Fig. 2, so that the valve 11 will close the transversebores d, c, 1, 9,71, 2', hooks 3f'rare formed on the stirrup, on that side of the pivotal point away from the footloop, and loops 36 are carried by the casing .A in position to be engaged by the hooks as the foot isremoved from the loop of the stirrup.

In the use of this device, it is preferable that the explosive mixture be introduced into the cylinder against the sparking terminals of the plugs, and for thispurpose several devices are nowin use which consistv of sub-chambers or deflectors for turning the gas against the end of the spark plug, but I have found that in many instances the connections with which the fuel leads connect are not in the proper position when the subcha-mbers arc screwed into the'cylinde'r, and even this connection will be on the o positc side from which the Lead exten s. As a provision against this difiicult-yl have provided an adjustable subchamber, as bettcr shown in F igs. 6 and 7. The subchamber 37 is cou'nterbored at 38, and'has external screw-threads 39 on: its one end to fit the opening intended for the standard sparklug. On the other end, thebore is screwthreaded at 4:0 to receive the spark plug 41-. A port 42"is formed through the side of the chamber, communicating with the bore 38, and a split collar 42 is received around the portion of the chamber adjacent. the port and is held clamped thereto by a clampserew 43. This collar has an internal groove 44, and a suitableconnection 45 is provided to communicate with this groove and to which the leads maybe connected.

The operation-of the device is as follows The oiiera or places his foot against the tread $1, and in so doing raises the stirrup 1O sulliciently that the hooks 35 become dis engaged from the loops 36. He then presses the p ston inwardly which opens the valve, and. permits the gas to flow into the chamber 3 from whence it passes tojtheseveral cylindc'rs and also through the) lead to the in- /take manifold. The operator tthen with=" draws the piston from the casing, taking in trash air through the valve 3 1, and at the 12 same timc vithdrawing a portioi of the charge from each t the cylinders past the spark terminals. The piston is then forced in, forcing all of the fluid in the casing through the fuel leads into the cylinders,

and that c linder which has the active spark-plug res, causing the engine to start. If one cylinder has an active spark-plug and the engine does not start, it may be either that the mixture is too rich or not rich enough. In the first case, the operator would again withdraw the piston from the casing, taking in additional fresh air through the check-valve 34 and continue this operation until the mixture in the cylinders is sutiiciently'diluted to be of the proper proportion. If, on the other hand, the mixture is not suiiicicntly strong, the piston is moved to the iosition shown in Figs. 3 and 4, and an additional supply of gas is permitted to flow throu h the valve, which will make up for the deficiency of richness in the mixture supplied to the cylinders. As a convenient means of keeping the piston and the working parts always oiled, I have counterbored the piston at 46, and a port 47 communicates with the groove 48 on the ex terior surface of the piston and with the counterbore 46. The chamber formed by the counterbore may be filled with oil, and as the piston is moved back and forth this oil will splash and pass through the port 47 into the groove 48 where it will come in contact with the Walls of the bore 1 and effectually lubricate the parts.

It will thus be seen that I have provided a starting device which may be operated without the necessity of stooping, and which is entirely controlled by the foot of the person operating the machine; also that with the structure as disclosed but a single checkvalve is needed, as the valve 11 closes the openings from the fuel-leads when the mixture is to be tired and prevents back-firing. Thus the parts are not likely to get out of order. Further it will be seen that this device may be applied to the standard autoj mobile even after it has left the factory, and i that, with the use of the subchamber as dis closed, it is not necessary to in any wise alter the engine or its connections.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is- 1. A starting device for engines, comprising a pump casing having a piston chamber therein, a piston working in said chamber, a gas supply chamber secured to the casing, fuel leads connected with said piston chamber, and with each of the cylinders, means controlled by the piston for opening and closing said leads, and means extending from the gas'chamber to a position to be actuated by the piston for controlling the passage of gas to the piston chamber.

2. A starting device for engines, compris ing a pump casing having a piston chamber therein, a piston working'in said chamber, a gas supply chamber secured to the casing, fuel leads connected with said piston chamtherein, a piston working in said chamber, a

gas supply chamber secured to the casing, fuel leads connected with said piston chamher and with each of the cylnidcrs,,a tucl lead from the gas chamber to the intake manifold, means controlled by the piston for opening and closing the leads to the cylinders, and means actuated by the piston for controlling the passage of gas to the piston chamb r. i

4. A starting device for engines comprising a pump casing having a. piston chamber therein, a piston working in said chamber, a gas supply chamber secured to the casing, fuel leads connected with said piston chamber and with each of the cylinders, a fuel lead from the gas chamber to the intake manifold, means controlled by the piston for opening and closing the leads to the cylinders, and means extending to a position to be actuated by the piston for controlling the passage of gas through the lead to the intake manifold, said last. named means also contri'illing the passage of gas to the piston chamber.

.3. A starting device for engines comprising a pump casing having a. piston chambcr therein. a piston working in said chambcr. a gas supply chamber secured to the casing. fuel leads connected with said piston chamber, and with each of the cylinders, means controlled by the piston for opening and closing said leads means'located in the gas chamber and extending to a. position to be actuated by the piston for controlling the passage of gas to the piston chamber, said means so constructed that when the piston is on its innermost stroke a direct. passage is formed from the gas chamber to eacl. of the cylinders.

G. A starting device for engines comprising a pump casing having a piston chamber therein, a piston working in sai gl chamber, a gas supply chamber connected with the easing, fuel leads extending from said piston chamber to each of the cylinders, a valve carried by the piston in position to close over said fuel leads, and means extending from the gas chamber to a position to be actuated by the piston for controlling the passage of gas to the piston chamber.

7. A starting device for engines comprising a pump casing having a piston chamber therein, a piston working in said iehamber, a gas supply chamber oonnecbedwith the the pa.

casing, fuel leads extending from said piston chamber to each of the cylinders, a Valve carried by the piston in position to close over said fuel leads, means located in the gas chamber and extending to a posi ion to be actuated by the piston for controlling the passage of gas to the piston chamber, and passagesin said valve so located thatwhen the piston is moved to a position to permit the passage of gas to the piston chamber a-ges open into the fuel leads.

8. starting device for engines comprising a pump casing ha ving a piston chamber therein. a piston working in said chamber, a gas supply chamber connected with the ca ing. l'uel leads connected with said DIS ton chamber 'and with each of the cylinders, a fuel lead evlending from the gas chamber to the intalv manifold. a valve carried by the piston in position to control the opening to the leads trom the several cylinders, a valve located in the gas chamber and adapted to be actuated by the piston for permitting the passage of gas to the piston hamber, a bore in said valve communicating with the lead to the intake manifold when the valve is open, and passages in the valve carried by the piston positioned to communicate with the leads to the cylinder when the piston is moved to a position to open the gas valve and thus permit the passage of gas to the cylinders.

9. A starting device for engines comprising'a pump casing having apistonchaniber therein, a piston working 1n said chamber, a gas supply chamber connected with the casing, fuel leads connected with said piston chamber and with each of the cylinders, a valve carried by the piston for closing said leads, a valve located in the gas chamber and adapted to be actuated by the piston for controlling the passage of gas to the piston chamber, and an air check valve connected with said piston chamber, said piston adapted to be actuated without opening said gas valve and to open sait gas valve when on its innermost stroke.

10. A starting device for engines comprising a pump casing having a piston chamber therein, a piston working in said chamber, a gas supply chamber connected with the casing, fuel leads connected with said piston chamber and with each of the cylinders, an air supply valve connected with the piston chamber, a fuel lead from the gas chamber to the intake manifold, a valve located in the gas chamber and adapted to be opened by the piston 'for permitting the passage of gas to the piston chamber and through the fuel lead to the intalte manifold, a spring for holding said valve normally closed, said valve extending into the piston chamber and adapted to form a stbp tor the normal instroke of the piston but. c nstructed so that as pressure is applied to the piston the valve is opened, and a valve carried by the piston in position to close the leadsto the cylinders when the piston is on its normal instroke.

ll. A starting device for engines comprising a pump casing having a piston chamber therein, a piston working in said chamber, a gas supply chamber connected with the casing. fuel leads connected with said piston chamber and'with each oi the cylinders, an air supply valve connected with the piston chamber, a fuel lead from the gas chamber to the intake manifold, a valve located in the gas chamber and adapted to be opened by the piston for permitting the passage of gas to the piston chamber, and through the fuel had to the intake manifold, a spring for holding said valve normally closed, said valve, extending into the piston chamber'and adapted to form a stop for the normal instroke of the piston but constructed so that as pressure is ap plied to the piston the valve is opened, and a valve carried by the piston in position to close the leads to the cylinders when the piston is on its normal ,instroke, said piston adapted to be operated on its normal strokes and to be depressed by the toot, and means for holding said piston, when not in use, in a position that the valve closes. the leads to the cylinders. I

12. A device of the character described comprising in combination with a multiple cylinder engine and an auxiliary fuel sup- :ly, a pump casing having a piston chamber therein, a piston working in said chamber.-tuel leads from said piston chamber to each of the cylinders, an air valve connect- 4 ed with the piston chamber for supplying air thereto during the normal operation of the piston, agas supply chamberronnected with the casing, a supply pipe from the auxiliary fuel supply to the gas chamber, and a valve adapted to be actuated by the piston for permitting the passage of gas to the piston chamber.

13. A device of the character described comprising in combination with a multiple cylinder engine and an auxiliary fuel supply. a pump casing having a piston chamber therein, a piston working in said chamber, fuel leads from said piston chamber to each of the cylinders, and an air valve connected with the piston chamber -tor supplyingair thereto during the normal operation of the piston, a gas supply chai'nber connected with the casing, a supply pipe "from the auxiliary fuel supply to the gas chamber, a fuel valve lead conneeted with the gas chamber and extending to the intake manifold, and a valve opened by the piston for permitting the passaga of gas to the intake manifold cylinder engine and auxiliary fuel upply, a pump casing having a pistlm chamber therein, fuel leads connected with said piston chamber and With each of the cylinders, a piston working in said chamber, an air supply valve adapted to supply air to said chamber during the normal operation of the piston, a gas chamber emlnectcd with said casing, a connection between the auxiliary fuel supply and said chamber, a fuel lead from the gas chamber to the intake manifold, a spring closed valve :nlapted to form a closure to the lead to the intake manifold and to the passage of gas to the piston chamber, said valve adapted to forma stop to the normal instroke of the piston and to be depressed against the spring by additional pressure on the piston for opening the passage to the piston chamber and to the lead to the intake manifold.

15. A device of the character described comprising in combination with a multiple cylinder engine and auxiliary fuel supply, a pump casing having a piston chamber therein, fuel leads connected with said pis ton chamber and with each of the cylinders, a piston Working in said chamber, an air supply valve adapted to supply air to said chamber during the normal operation of the piston, a gas chamber connected with said casing, a connection between the auxiliary fuel supply and said chamber, a fuel lead from the gas chamber to the intake manifold, a spring closed valve adapted to form a closure to the lead to the intake manifold and to the passage of gas to the piston chamber, said valve adapted to form a stop to the normal instroke of the piston and to be depressed against the spring by additional pressure on the piston for opening the passage to the piston chamber and to the lead to the intake manifold, a valve carried by the piston in position to close the leads to the cylinders when the piston is at its normal instroke, passages in said valve adapted to open communication between the cylinder engineand auxiliary fuel supply,

a pump casing having a piston chamber therein, fuel leads connected with said piston chamber and with each of the cylinders, a piston working in said chamber, an air supply valve adapted to supply air to said chamber during the normal operation of the piston, a gas chamber connected With said casing, a connection between the auxiliary fuel supply and said chamber, a fuel lead from the gas chamber to the intake manifold, a spring closed valve adapted to form a closure to the lead to the intake manifold and to the passage of gas to the piston chamber, said valve adapted to form a stop to the normal instroke of the piston and to be depressed against the spring by additional pressure on the piston for open.- ing the passage to the piston chamber and to the lead to the intake manifold, a valve carried by the piston in position to close the leads to the cylinders when the piston is at its normal instroke, passages in said valve adapted to open coimnunication between the piston chamber and the fuel leads to the cylinders when the piston is depressed to open the gas valve, and means whereby the piston can be normally operated for pumping air to the cylinders or depressed for opening the communication from the fuel supply to the cylinders and intake manifold by the foot of the operator.

In testimony whereof I affix my sigpatnre, in the presence of two witnesses.

HENRY M. SHEER.

Witnesses GERIIARD G. AnnNos, HENRY DAMnons'r.

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