US1066248A - Starting-primer for motors. - Google Patents

Description

G. W. BROWN. STARTING PRIMER FOR MOTORS.4 APPLIoATIoN FILED 00T. 3o, 1912.

1,066,248. PatentedJuly 1, 1913. 5f@ f. f 6 ?5 I 33 0 6 .1/verdor.

UNITED STATES IAM'IENT OFFICE.

GILMAN W. BROWN, OF WEST NEWBURY, MASSACHUSETTS, .ASSIGNOR 0F ONE-HALF TO HARRIET L. MADDOCK, OF HAVERHILL, MASSACHUSETTS, .AND ONE-HALF TO HORACE W. BROWN, OF WEST NEWIBURY, MASSACHUSETTS, i

Specication of Letters Patent.

STARTING-PRIMER FOR MOTORS. ii i Patented July 1, 1913.

The subject of the present invention is a device for enabling internal combustion motors, and particularly those provided in motor vehicles, to be started under all weather conditions and at all temperatures, even when the motor, the fuel, and the surrounding atmosphere are extremely cold.

In general objects and in the manner of its use this device is similar to the one disclosed in my pending application filed September 18, 1912, Serial Number 720,964, entitled Primer for internal combustion Inotors. This device is also capable of being located and used in any position, whether near to or remote 'from the motor, and above or below the intake thereof with equal etliciency.

The particular' objects of this improved form of starting primer are to provide improvements in the construction and arrangement of the parts thereof, particularly in the construction of the supply reservoir, the relation thereto of the carbureter or mixing attachment, and the means for making the same operative when desired, as hereinafter more fully appears..

In the accompanying drawings, Figure 1 is a side elevation partly in section of the improved starting primer. Fig. 2 is an end elevation as seen from the left of Fig. 1. Fig. 3 is an elevat-ion as seen from the right of Fig. 1 and Fig. 4 is a detail sectional view on line 4 4 of Fig. 1.- Fig. 5 is a section on line 5v-5 of Fig. 1.

The same reference characters indicate the same parts in all the figures.

In construction the device comprises two oppositely arranged heads 3 and 4, respectively, having cylindrical ianges on the faces which are directed toward one another, and a cylindrical shell 5 of which the ends fit tightly and are secured within the side flanges of the heads, the shell and heads together thus forming a supply tank or reservoir for an inflammable volatile liquid. The head 3 has lugs 6, 7 and 8, perforated to admit bolts or other fastenings whereby it may be attached to the frame of the motor orof the vehicle. Preferably it is attached at the forward side of the dash 9 of the vehicle, as shown in Fig. 1. The lug 6 has an additional perforation, land the head 4 has a perforated lug 10 alined with l such perforation, these perforations serving as guidesfor an operating rod 11 which passes through the dash to the rear side thereof and is accessible by the hand or foot of the vehicle driver. The head 4 is provided also with a device for mixing the combustible liquid with air. This device which also may be called a priming carbureter consists of a cylindrical casing or cylinder 12 preferably formed as an integral part of the head 4, and inclosing a chamber which is both a mixing chamber and a valve chamber. Said cylinder 12 extends with a portion 13 of the head 4 below the lower side of the tank and has a cross member 14 from which rises a nozzle 15 located approximately in the axis of the chamber and inclosed within the cylinder 12. The cross member 14 joins the depending extension 13 of the head and is bored out from such extension as far as to the passage in the nozzle, to form a channel 16. The extension 13 is also bored out to form a passage 17 in back of the forward wall o-f the head and leading from the channel 16 to the reservoir shell into the interior of the reservoir. Preferably the channel 16 is formed by drilling from the rear side of the extension 13, and the passage 17 is formed by drilling upward from the lower end of this extension, the external openings of these drill holes being then closed by plugs 18 and 19, respectively. In this way a continuous passage is provided from the supply tank or reservoir to the nozzle. By extending the bottom of the carbureter below the tank as described, it is possible to locate the nozzle so that its orifice is below the bottom of the tank as shown clearly inpFig. 1, and thus all the liquid in the tank is enabled to iiow by gravity through the nozzle. From the bottom of the carbureter extends'a nipple 2O which `is bored out' in line with the nozzle passage and is threaded to receive a needle valve 21 arranged to control the effective size of Y such passage. Said ynipple is also 4externally threaded and receives a packing nature of ay toggle joint, which positively prevents any jumping of the valve from closed position. Only the lightest of springs is necessary to bring the operating device into and retain it in this locking position. Such a spring is preferably arranged to act on the rod 1l, being in the form of a helix surrounding the rod, indicated at 38 and abutting at one end on the lug 10 and at the other end on a collar 39 on the rod. The co-nstruction of the tank having two heads, each with a lug forming a guide for the operating rod provides the most effective and inexpensive mounting possible for the operating rod. The lugs 6 and 10 may be easily formed upon the head and accurately alined with the greatest ease, and they provide a sufficiently solid support and guide for the rod without necessitating much additional metal in the heads, and therefore constituting the most effective and inexpen sive support possible. rI`he rod also is not in the way, as it lies close to the shell of the tank, and it constitutes a convenient holder for the spring 38, by which the latter is supported out of the way. f

An important feature of the invention is the means which I employ for venting the fuel tank to maintain the pressure therein uniform without allowing the very volatile liquid fuel to escape. It is necessary to provide a vent to allow inflow of air to take the place of what fuel fiows out, and it is a fact that liquid of the sort which I use for fuel is so very fluid that it will pass in objectionably large quantities through even lthe smallest of vents when thrown violently from one part of the tank to the other by sudden starting or stopping of the vehicle, unless the Vent is properly located. Then the vehicle isv suddenly started, the liquid in the tank will be thrown against the rear head of the tank with considerable force, and in suddenly checking speed a similar wave of the liquid will be projected against the forward head. If the vent is located near either of these heads, some of the fuel will escape when such an action occurs. My' mode of overcoming this difficulty is to provide a tube 41 leading from the filling opening or nozzle 40 to a point near the bottom of the tank, and in making in the side of this tube a small vent 42 in the highest point of the tank. The tube or nozzle is closed by a cap 43 which either has a vent made in it or fits loosely enough to permit leakage of air past it. If any wave of fuel brings up against the tube 41 and the vent 42, such quantity of the fuel as flo-ws through the vent can only fall back into the body of the fuel, since it could not escape through the vent in the cap, unless it sho-nld be sufficient in' volume tofill the nozzle 40, and should iiow through the vent faster than it could flow down the tube and back into the tank,

which is obviouslylimpossible. I also place the filling tube near the longitudinal middle of the tank where there is the least disturbance due to sudden starts and stoppages of the vehicle, and therefore the least tendency of the fuel to flow through the vent.

lVith this device it is possible to produce a combustible mixture of fuel vapor and air at all temperatures even in the severest winter weather and without the necessity of previously heat-ing the fuel or t-he air. The mixture is made at the supply tank and thence conducted in the form of gas through the moto-r. In this form it will flow upward or downward with equal velocity when impelled by the suction of the motor, hence it isimmaterial to the functioning of the device whether it is located at a higher or lower level at a point where the connection is made with the motor intake, o-r whether it is near or remote from the motor.

In this device the parts are few in number, simple in construction and the machine work of manufacture is reduced to the minimum. It has the advantage of efficiency and low cost of product-ion.

I claim:

l. A starting primer for internal combustion motors comprising a supply tank, including as part of its construction, a head at one end, a cylinder formed as a part of said head, a nozzle in said cylinder, a passage leading from the tank to the nozzle, a mixture outlet from the cylinder above the nozzle, and a valve for alternately opening and closing ,the nozzle.

2. A startingk primer comprising a horizontally arranged tank having heads at op posite ends, said heads having alined guides, an endwise movable operating rod sliding in said guides, a carbureter comprising a cylinder made as a part of one of said heads, and having an outlet in its side, a valve arranged to move across said outlet so as to open and close the same in a direction approximately perpendicular to that of the operating rod, means connecting the rod with the valve and arranged to operate the valve in consequence of endwise movement ofthe rod, a nozzle in the lower part of said carbureter, and a channel leading from the interior of the tank to said nozzle.

`3. A starting primer'comprising a tank having a head at one end and said head being formed with a depending extension below the tank, a cylinder connected with the exterior of said head having a cross member joined to the depending extension, a nozzle rising from said cross member, the extension, cross member, and no-zzlehaving connecting passages communicating with the interior of the tank, the cylinder being open to the atmosphere at the bottom on each side of said cross member and nozzle, an outlet opening from the side of the cylinder above the nozzle, avalve-fitting in: the shell and movable across the outlet toward" andE from thenozzle, andE a fuel valveV carried bysaid valve and yieldingly impelled' toWa-rd the nozzle.

Ll. A starting primer comprising a fuel tank having `heads upon its ends, said heads havingalined guideivays, al carbureter foi-ined integrally with one of said heads having an internal mix-ing chamber, a nozzle insaid' chamber, a ring Ifor-mingV a strictiireini the carburetei' surrounding the nozzle, an outlet above the nozzle and an airt .inlet below the nozzle, the headbeing provided with apassage leading from the in-l terior off' the tank to the nozzle, a valve in said carbureter movable across the outlet; and carrying means for stopping thenozzle, an operating rod contained in said guide-y Ways, and a toggle link joiningvsaidzrod and? valve, arranged to forni a positive lock to prevent opening'of the valve when the lat-v terl isiclosedi 5. A starting primer comprising acar- `bureter.having/a mixing chamber, a fuel in-Y let, an air inlet', and a mixture outlet, ai container for liquid fuel in communication with said fuelE inlet, a valve-for controlling the flow ofcombustible from the carbureter and? guided to-move-in-a definite path, a linky hingedly connected to said valve, a guiding member havinga;.pivot connection With said link and movable only in a directionW-hich iS-.transverse vtothe path in which the valve may. move, and yielding means normallv holding said guiding member in sucha posi,.- tion that the points of* connection between said member and-the link and between the i,

linkandvalve are approximately vinthe path;

of; movement of that portion of the valve:v to-which the link isrconnected, Wherebv the, valve is locked against accidentali,displace ment.

adaptedto control the floivof combustible froi'nsuch outlet, an operatinglink hinged `tosaid valve, said valve at the pointof conm nection with saidilink being constrained to move in a predeterminedfpath, and means 6. A; priming device comprising` a carbureter having a mixing chamber, fueland air;l inletshto said chamber, andL anl outletv forco-mbustible from said chamber, a valvey 'connection with saidlink: being constrained tomovefin a. predetermined! path, and: means for restricting saidi link at a point distant from its connection with the valve to a *movement inlone pathonly, which istrans verse to the path of'itsconnection with the `\f'-a'lve, and intersect-ingsuchv last named path, whereby When said point is at the point offintersection of said paths, the valve is locked against. accidental: movement', and `movement ofthelink away from such'point inlets to said chamber, and an outlet for combustible from said chamber, a valve adapted to-control the flow of combustible from suchoutlet, an operating link hinged to saidivalve, said valve at the point of connection With said link being constrained to 4move in a predetermined path, and aguide inem-ber with which saidlink is engaged at a point distant from its hinged connection with the valve, arranged to compelv such Apoint of thelink to travelv only in a path transverse to and intersecting the prolongation of 'the first iiamedpath, whereby movement-of? the link inf` the predetermined? path operates the valve, andthe link is enabled Ito lock the valve ,againstmovement bv force otherwise applied When in one position.

9. A priming device coinp'risingar carbufreter having a mixing chamber, fuel-and'air inletsl to said chamber, land an outlet for combustible from saidchamber, a valve 'adapted to control the flow of vcombustible 'froinsuch outlet, an operating linkhinged to saidvalve, saidivalve-at the pointl of connection with said: link being constrained to move in a predetermined path, Ia rodpivoted to said link at a point removed from the hinged'connectionofthe link With the valve, and a guide by Which saidf' rod ifs held so as 'to extend in a direction transverse to said path and ywith respect to which thefrod is movable endWise.

l0. A priming'device comprisinga carbureter having amiking chamber, fuel andaii inlets to said chamber, and:y an outlet for combustible from said`v chamber, a valve adapted" to control t-he flow of combustible froinsuch outlet, an operatingzlink hinged to saidfvalve, said valve'at the-point of connection with said link being constrained to move in a predetermined path, a rod'pivoted to said'link at a` point removed' from the hinged connection of the link with the valve, a guide by which said rod is held so asl-'to extend in a direction-transverse:to said pathA and with respect to Whichthe rod is movable endivise, and a springacting on said' rod andv tending to hold the saine in such positionthat the line through its point ofengagementf with the link andthe connection between the link andv-alveareiin the same line with the path in which such connection is constrained to move.

11. In a primer the combination of a tank and a carbureter united structurally with said tank, having a fuel inlet connected with the tank, an air inlet and a mixture outlet, a valve movable so as to open and close said outlet, a link pivoted to said valve, an operating line connected to said link and arranged to move the part wherewith it is connected in a direction transverse to that in which the valve is constrained to move, and a rod connected with the link and guided to have its only movement in a path approximately parallel to that in which said operating line is arranged to act, said rod being also constructed to serve as an actuator for the link.

12. A starting primer comprising a. fuel tank and a carbureter structurally united with said tank and having a fuel inlet in communication with the tank, an air inlet and a mixture outlet, a valve in said carbureter movable across said outlet, an operating rod movably supported by said tank, and a toggle link joining said rod and valve and arranged to form a positive lock to prevent opening of the valve when the latter is closed.

13. A starting primer comprising a horizontally arranged tank having a vertical head at one end, said head having as an integral part thereof a carbureter casing extending verticallyalong the outer face of the tank, and said carbureter casing including a nozzle connected with the interior of the tank by a passage leading through the head, and having also openings below the nozzle for admission of air and an outlet above the nozzle for outflow of the combustible mixture, and a stricture within the casing surrounding the nozzle.

111. A starting primer comprising a supply tank, a carbureter formed as a part of said tank and having a connection therewith through which a gravity flow of liquid fuel may pass, said carbureter having a nozzle through which the fuel issues and an outlet for combustible mixture, and having means for preventing flooding by the liquid fuel issuing from the nozzle when there is no flow of air through the carbureter.

15. A starting primer comprising a supply tank, a carbureter formed as a part of said tank and having a connection therewith through which a gravity flow of liquid fuel may pass, said carbureter having a nozzle through which the liquid fuel issues, having an outlet for combustible mixture at a height above the nozzle orifice, and having an externally open air inlet at a height lower than the nozzle orifice, through which fuel flowing through the nozzle when there is no flow of air through the carbureter may escape to prevent flooding of the carbureter.

16. A starting primer comprising a supply tank, a carbureter formed as a part of said tank and comprising an inclosed mixing chamber, an upstanding nozzle in said mixing chamber removed from the walls thereof and in communication with the interior of the tank, said carbureter having an outlet for the combustible mixture of which the lowest point is higher than the discharge orifice of the nozzle, and having also an external opening below the nozzle orifice and so arranged that an excess of liquid issuing from the nozzle may escape therethrough.

17. A starting primer for internal combustion moto-rs comprising a supply tank, a carbureter constructed as a part of said tank at one of the ends thereof, and including an inclosed mixing chamber having a lateral outlet for the combustible mixture, an upstanding nozzle having communication with the interior of the tank and located below the said outlet, and an air inlet below the nozzle orifice, and a valve arranged to alternately open and close said outlet.

18. A starting primer comprising a tank having an upright wall, a carbureter comprisinglan inclosed mixing chamber made as a part of such wall and having a lateral outlet for combustible mixture, a nozzle in the lower part of said carbureter, a channel leading from the interior of the tank to said nozzle, a valve arranged to move toward and from the nozzle to close and open the same, and an operating rod engaged with said valve.

In testimony whereof I have affixed my signature, in presence of two Witnesses.

GILMAN W. BROWN. Witnesses C. F. BROWN,

E. BATOHELDER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

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