US 2514441 A
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Description (OCR text may contain errors)
July 1 1950 w. Y. BR5WN 2,514 441 LUBRICAT-ING DISPENSING APPARATUS Filed March R4, 1948 3 Sheets-Sheet 1 32 I WILLIAM Y Beowu,
' July 11, 1950 w. Y. BROWN LUBRICATING AND DISPENSING APPARATUS 3 Sheets-Sheet 2 Filed March 24, 1948 WILLIAM YBEOWN,
. N A m -SE A A A A A Nb 3. E m e A im E m. 5 n2 E AA 6 mm m mw OJ m v mm o: wN om m m :ihhfl A: a A.k. H- m o X mm A m mm, m rm mm V% in. 0 0N0 A A A1 2 July 11, 1950 w. Y. BROWN LUBRICATING AND DISPENSING APPARATUS 3 Sheets-Sheet 3 Filed March 24, 1948 WILLIAM Y BROWN,
ATTORNEY Patented July 11, 1950 UNITED STATES PATENT OFFICE LUBRICATING AND DISPENSING APPARATUS This invention relates .to a wheeled pump and more especially to a wheeled frame having a storage battery mounted thereon and connected to an electric motor which motor is in turn connected to a suitable pump and the intake side "of the pump .has connected thereto the lower end of va container or reservoir in which a lubricant, puncture sealing .compound and the like is adapted to be stored, with .a flexible hose connected to the discharge side of the pump and havin .a fitting on the free end thereof adapted to :be connected to the valve stem of an inner tube or a pneumatic casing, or connected to a suitable grease fitting. The reservoir is adapted to hold a quantity ofgrease or puncture seali-ng compound, and the reservoir has a follower plate therein to which is connected a sliding plunger, which slidably penetrates .the top of the reservoir. The follower plate is drawn downwardly as the material ,in the reservoir is exhausted, and a switch is mounted on the top of the reservoir, and the plunger, above the cover for the reservoir, has an adjustably mounted collar thereon which, when .a predetermined amount of material has been pumpedfrom the container, will depress a raised switch mounted on the cover for the reservoir and disconnect the circuit to the motor to thus stop the pumping operation.
This invention is especially adapted for the dispensing of puncture sealing compounds, thick lubricants and greases, and in fact for the dispensing of any suitable plasticmaterial or fiuid material in which a predeterminedquantity of the material is desired to be delivered from the reservoir and then to automatically stop the p ation of the pump to insure that a predetermined measured quantity of the material has been delivered by the pump from the reservoir.
It is an object of this invention to provide a grease gun, tube sealing compound dispenser and the like having a Wheeled frame with a grease pump mounted thereon and havin the intake side connected to a suitable reservoir and havin the discharge side connected to a suitable hose which in turn is adapted to be connected to the point of delivery with an electric circuit for the motor and means whereby when a predetermined quantity of material has been delivered, the circuit to the motor will be automatically broken to stop further discharge of the material from the reservoir.
Some of the objects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which Fi ure '1 is aside elevation of the apparatus;
Figured "is a top plan view of the apparatus;
'Figure'B is an end view of the apparatus'looking fromright to left in Figure 1;
Figure 41s a bottom plan view of the apparatus;
Figure 5 is alongitudinal sectional detail view of the discharge end'of thehose;
Figure 6 is a vertical sectional View taken sub vstantially along the line 6-6 in Figure 1;
Figure '7 is an enlarged detail elevation of the switch mounted on the lidof the container and showing the cooperating means on the plunger associated with the follower plate;
.Figure 8 is a wiring diagram of the electrical circuit of the apparatus;
Referring more specifically to the drawings, the numeral 1| 0 indicates a bedplate having angle members II and 1'2 Welded to the lower surface .at one end thereof, to the outersurfaces of which :are mounted by welding, bushings l4 and I5, and suitable shouldered bolts 16 and I1 penetrate these bushings and angle members and have rotata'bly mounted thereon rear wheels 2]] and 21. On the lower side of the front end of plate H! is secured a plate 25,, by any suitable means such as bolts 26, and this plate has a bolt 2 projecting downwardly from the center thereof on which'is rotatably confined a caster frame 28 having a caster wheel '30 rotatably mounted on a bolt 3| penetrating the two sides of the caster member 28. A U-shaped bracket 34 extends forwardly from the'caster member 28 and has pivoted asat32 a tongue 33.
Resting on the front end of plate It is an ordinary storage battery35 which has a frame 36 around the upper portions thereof and suitable bolts ,31 and 38 penetrate the bed plate Ill and the upper portion of the ,frame 36 to confine the battery in position. To the upper surface of the rear portion of the bed plate I0 is welded the lower end of .a neck 49 of a container or reservoir 4| adapted to contain a suitable fluid material 42 such as a tube sealing compound or grease or lubricant or any desired material. This container "has a slidably fitting follower plate 43 disposed therein to which is secured 'a centrally disposed uprising shaft M which slidably penetrates a fitting 45 secured on the upper surface of a lid '46 and on that portion which extends above the fitting 45 is an adjustable collar 41 which is adjusted imposition by mean of a thumb nut 48. On top of the portion -'45 is welded ,a channel member which also supports a conventional pull switch casing 5i which surfaces 56, 51 or 58 and then the collar 4'! is clamped in position by tightenin the nut .48 .and
then the member 55 is removed from between the: V
collar 41 and the angle member 50.
Extending from the lower portion of funnel, 4B and extending through plateJll is a nipple (ill. which is connected to an elbow BI which in turn is connected to a nipple 52 which is connected to a gear pump casing 63 having conventional gear wheels 64 and 65 rotatably mounted therein, andfrom the output side of the casing 63 is connected a nipple 66 to which is connected an elbow 61 which in turn is connected to an elongated nipple 68 which is directed upwardly through a suitable opening in the plate I and has, connected to the upper end thereof a suitable flexible hose 19 which, at its outer end, has aferrule ll secured thereon which is slidably surrounded by a collar 12, having a restricted portion 13 slidably engaging the ferrule H and the outer end of the ferrule H is flared outwardly to prevent removal of the collar 12. The collar 12 is internally threaded and may be secured onto a grease fitting or valve stem indicated at 14.
The gear pump 64, as has already been described, has gear wheels64 and 65 therein. The wheel 65 is an idler wheel and. is mounted on a stud shaft lfi while the wheel 55 is keyed onto a shaft 11 which extends outwardly of the casing .63 and has fixedly secured thereon a gear wheel 80 which meshes with a pinion 8I fixedly secured on a shaft 82 extending from a gear casing 83 which is integral with a reduction, geared motor 84.
The gear housing 63 has a laterally projecting portion 81 which fits against the bottom of plate l0 and is secured to the plate In by a plurality of screws 88. The motor 84 is secured to the bottom of plate Ill by means of a plurality of screws 89.
The battery 35 has connected to one of its terminals a grounding cable 9! which is connected to one of the screws 26 which connects the plate 25 to the bottom of the plate Ill. The other terminal of the battery has leading therefrom an insulated cable 92 which is connected to a terminal 94 of a magnetic switch 93 which is secured to the bottom of the bed plate Ill. The other terminal 95 of the magnetic switch 93 has connected thereto a cable 96 which is connected to one of the terminals of the electric motor 91. The other side of the motor is connected by a ground wire 98 to a suitable ground 99 which is the frame or bed plate I0. As a matter of fact, the housing of the motor 84 is grounded to the bed plate by its attachment thereto.
' The magnetic switch comprises a solenoid core I 00 having a metallic bar lIlI connected to one end thereof which is adapted to engage the contacts 94 and 95 when a coil I 93 disposed around the solenoid core is energized. The coil I03 has a ground wire I04 connected thereto which is grounded as at I85 and the other end of the sole- ;noid core I03 has a wire I06 leading therefrom which leads to one of the contacts of a female' electric plug connection I 98. The terminal 94 has leading therefrom a wire III) which is connected to the other terminal of the conventional female socket I08. A suitable male socket H2 having two conventional prongs extending therefrom is adapted to be inserted in the female socket I98 when it is desired to complete the circuit to the contact points 53 and 54 since these two male contacts have leading therefrom wires H3 and H4 respectively to the contact points 53 and 54.
Vertically slidable and frictionally mounted in the switch housing i is the member 52 which has a cross metallic portion H5 across its lower end adapted to make contact with the contact 53 and 54 when the member 52 is moved to raised position. The reason for the male and female connections I89 and I I2 is so that the male plug II I can be pulled from the female socket I08 when it is desired to remove the lid entirely from the container and dispose it some distance away.
Method of operation Let us suppose that it is desired to deliver a predetermined quantity of material from the container 4| into a suitable fitting. The female and male sockets I98 and III will be connected togather. The nut 48 would be loosened and the collar 4? of course would have previously been moved upwardly on the plunger 44 and then the plate is placed in position either to cause the lower surface of collar 4'! to engage the high sur-- face '56 or the intermediate surface 51 or the lowermost surface 58 depending upon the quantity of material desired to be delivered in one operation from the container 4|. The collar I2 is screwed onto the fitting I4 and with the parts thus connected and with the collar 41 properly positioned, and of course the member 55 is removed, the plunger 52 is pulled upwardly to make contact between the contacts 53 and 54 and the electric motor is started and it continues to operate the pump, and the pump continues to operate until the withdrawal of material therefrom lowers the follower plate 43 to the point where the lower surface of the collar 41 will cause switch 52 to move downwardly to open position, this being a snap switch and thus will stop the motor and thus a predetermined amount of the material will have been pumped from the container 4|.
In the drawings and specification, there has been set forth a preferred embodiment of the invention, and although specific terms are employed, they are used in a generic and descriptive sense only and not for purposes of limitation, the scope of the invention being defined in the claims.
1. Apparatus for forcing a predetermined quantity of fluid material into a fitting, comprising a wheeled frame, a storage battery mounted on the frame, a container for the material mounted on the frame, a pump mounted on the frame, and having its intake side connected to the lower end of the container, a motor for driving the pump, a flexible hose leading from the discharge side of the pump, means for connecting the free end of the flexible hose to a suitable fitting, a follower plate in said container adapted to rest on top of the material therein by gravity and by a partial vacuum created below th follower plate by withdrawal of lubricant from the lower end of the container by said pump, said container having a lid provided with a hole therethrough, a
shaft mounted on the follower plate and slidably penetrating said hole and projecting a substantial distance above the top of the lid, a switch mounted on said lid, an adjustable member mounted on said shaft at a point above the lid adapted to engage and move said switch from closed to open position upon downward movement of the follower plate as material is pumped from the bottom of the container by said pump, a circuit leading from said battery to said motor, a control circuit for said motor passing through said switch on top of the lid, whereby upon delivery by the pump of a predetermined amount of material from the container, the adjustable member on said shaft will engage and open said switch and disconnect the electrical-circuit leading to the motor.
2. In an apparatus for dispensing fluid under pressure into a, fitting, said apparatus comprising a wheeled frame having an upstanding .reservoir mounted thereon and a discharge pipe connected to the bottom of the reservoir, means for discharging the fluid from the reservoir in combination with means for stopping the means for discharging the fluid from the reservoir comprising a follower plate in the reservoir adapted to rest on the fluid therein, a source of electrical energy, an electric motor mounted on the frame, a pump carried by the frame and driven by the motor, said discharge pipe being connected to the intake side of said pump, said reservoir having a. lid provided with a hole therethrough, a shaft mounted on the follower plate and slidably penetrating said hole and projecting a substantial distance above the top of the lid, a switch mounted on said lid, an adjustable member mounted on the shaft above the lid and being adapted to engage and move said switch from closed to open position upon downward movement of the follower plate as fluid is pumped from the bottom of the reservoir by said pump to cause the follower plate to move downwardly by gravity and by the partial vacuum created by removal of lubricant, a, control circuit for said motor passing through the switch on the top of the'lid and a flexible hose having means thereon for connecting one end to a suitble fitting and for connecting the other end to the discharge side of the pump, whereby upon said pump discharging a predetermined amount of material from the reservoir, the adjustable member on the shaft will engage and open the switch and disconnect the electrical circuit leading to the motor.
WILLIAM Y. BROWN.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 1,829,173 Wertz Oct. 2'7, 1931 2,016,888 Brown Oct. 8, 1935