US1953209A - Cement dispensing device - Google Patents

Description

April 3, W. BARNETT CEMENT DI SPENSING DEVICE VEA/TUR www April 3, 1934. w BARNETT 1,953,209

CEMENT DIsPENsING DEVICE Filed June 16, 1930 2 Sheets-Sheet 2 VEA/TUR Patented Apr. 3, 1934 UNITED STATES PATENT OFFICE CEMENT DISPENSING DEVICE Application June 16, 1930, Serial No. 461,463 In Great Britain July 9, 1929 Claims.

This invention relates to devices for dispensing `liquids supplied in containers such, for example, as cement or other coating material. An important iield of use for such a device is in dispensing 5 the viscous and iniiammable cements used in the manufacture of boots and shoes, and for purposes of illustration my invention will be described in f this connection.

i `Cement for shoemaking purposes is usually supplied in commercial containers of a gallon or more in capacity` but in use the operator requires to have at hand `only small quantities at a time. Special dispensing devices have been designed heretofore which have been periodically filled with cement from the containers in which it is purchased. Such filling operations are apt to result in Waste of cement both in spilling, incomplete emptying and in deterioration of the quantities left from time to time in the containers.

"l `The lling operation is, moreover, arduous and interrupts the `work of the operator. On the other hand, open dispensing receptacles of substantial capacity are objectionable on account of the Waste which occurs from evaporation of the "solvent contained, the incidental fire hazard and the resulting deterioration due to oxidation or contamination from outside sources.

` An important object ofthe present invention is to prevent the occurrence of Waste from these or from other causes and to make available for the operator, preferably in commercial contain- "ers, an adequate reserve of cement from which small quantities can be conveniently drawn for use from time to time as required. To this end, an `important feature of the invention consists in a cap member designed to support a commercial container in inverted position and shaped to make a tight connection therewith so as to prevent` the escape of cement except through a suite able port, under the control of the operator and in such quantities as may be required for the work in hand.

A further feature of my invention consists in a stand or base arranged to cooperate with the cap member in supporting the inverted contain- `er and being also provided with areceptacle or 'tray adapted to receive small quantities of the rcement from time to time and expose the same within convenient reach of the operator. Preferably and as herein shown, the cap piece With the connected container may be removably and adjustably secured to the stand to facilitate the presentationof a full container in place of an exhausted one and to insure the proper discharging relation of the outlet port and the receptacle in the stand.

Certain features of my invention may be embodied to good advantage in constructions Where the discharge of cement is by `gravity but in dealing with a Viscous cement, I prefer to make provision for discharge under pressure conditions. Where this is desirable, I may provide the cap member With an air pump associated with an air inlet port and arranged to conduct air under pressure to the interior of the container Where it will act, when the outlet port is opened, to expel the cement rapidly and at a substantially uniform rate of iiow. Y

These and othc" features of the invention will be best understood and appreciated from the following description ci a preferred embodiment thereof, selected for purposes of illustration and shown in the accompanying drawings, in which Fig. l is a View in perspective of the complete dispensing device with portions broken away;

Fig. 2 is a view in cross section of the stand and cap member showing also a portion of the container; and I Fig. 3 is a view in cross section in another plane through the cap member showing the latter as partially secured to an upright container.

The container shown in the accompanying drawings is a cylindrical can 12 commercially used for supplying cement and is provided With a neck having an external screv/ thread formed therein. The capacity of the can may be one or more gallons and, as received by the manufacturer, its neck is closed by a screw cap cover. 1

t will be understood that one purpose of my `invention is to utilize a commercial container of this character as received and without requiring the used to do anything more than substitute a special cap member for the original container cover and then place the can in inverted position.

The cap member 10 herein shown comprises a casting with a circular rim le internally threaded to fit the neck of the container 12 andhence to provide interlockingengagement therewith so that the cap may be used to support the container, as later described. rihis cap member 10 CII neotion is insured between the cap member and the container 12.

Externally the cap member is provided with a cylindrical post or stud 18 which is arranged concentrically with respect to the cap member as a whole and provided with a circular flange 19. Within the cap member is provided a centrally-disposed bose 20 concentric with the post 18 and extending in the opposite direction into the chamber of the cap member. rIhe boss 20 is provided with a longitudinal passage in which is received air pipe 24 of sufficient length to extend into the container l2 and substantially through the cement contained therein, being provided with an upper curved end 26. A transverse passage or port 30 communicates with the inner end of the passage in the boss 2S and extends outwardly through the body of the cap to a plunger air pump 32, the barrel of which is screwed into the cap member. A check valve 34 is provided in the passage 30 and the arrangement is such that by a ew strokes of the pump the operator may ll the upper end of the contained l2 with air under pressure.

At one side of the air pump the cap member 10 is provided with a discharge port terminating in a spout 36. This port extends from the chamber of the cap member downwardly and outwardly and is provided with a rotary valve 38. The valve stem extends horizontally outside the cap, where it is provided with a nger piece l0 (Fig. 1) and a connected torsion spring 42. The spring 42 is arranged normally to hold the valve in closed position, as shown in Fig. 2. By depressing the linger piece lo in opposition to the action of the spring, the operator may rotate the valve 38 through substantially 90 to its discharging position, whereupon the cement contained within the container i2 and the cap member will be discharged through the spout 36, and upon disengagement or the linger piece 40, the valve will be automatically closed by the action of the spring.

The base or stand comprises the plate casting 50, substantially triangular in pian and adapted to be fastened to a work bench. It is provided with a cylindrical socket 52 or suitable size to receive freely the post 18 oi the cap member and to support the assembled parts by engagement with the iange 19 of the post. The socket 52 is provided in its wall with a wing clamping bolt 5e which engages the post 18 and clamps the same in the socket. The stand is also provided with a shallow receptacle or tray 56 properly positioned to receive cement discharged from the spout 36 oi the cap member when the latter is turned upon its post 18 to the proper angular position.

Assuming that the container 12 has been exhausted and the operator desires to substitute for it a new container filled with cement; the clamping bolt 54: will be loosened, permitting the removal of the empty container with the cap member intact. The cap member l0 is then unscrewed from the empty container and screwed upon the neck of a full container. The full container with the connected cap member is now inverted and the post 18 placed in the socket 52, thus supporting the container in inverted position, the valve 38 being held in its closed condition and the air pipe 24 passing upwardly into the container. It will be noted that in iilling the chamber of the cap member the cement in the container is drawn down somewhat, providing an air space having at least the volume of the chamber of the cap member. The assembled cap member and container are turned in the socket 52 until the spout 36 is located in proper discharging relation to the receptacle 56, whereupon the clamping bolt 54 is tightened and the device is ready for use. The operator may now operate the hand pump 32 to deliver compressed air to the top of the container through the pipe 2a without bubbling through the body of the cement and so trapping air in the sticky mass. Then, by depressing the finger piece 40, the valve 38 is opened and the desired amount of cement is allowed to flow into the receptacle 56. As the cement in the receptacle 56 is used up by the operator, it may be replenished by operating the finger piece 40 and the entire contents of the container may be utilized at the desired rate while it remains in inverted position, and this may be continued until the receptacle is completely drained.

While I have described my invention as used in dispensing cement, it will be understood that this is for purposes of illustration only and that the device may be suitably modified for handling any volatile, inflammable or viscous liquid. It will be understood also that while I have shown the cap member lo as adapted for use with a container having a threaded neck, the form of connection is of secondary importance only and may be mcdined to accommodate the construction of any commercial container.

iaving thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. In a device for dispensing liquid from an inver-ted commercial container, a stand provided with an open tray and having a socket at one side of said tray, a cap member arranged to close the container when upright and to support it in inverted position, said cap member having a shouldered post adapted to be received in said socket, said cap member being also provided with an outlet port terminating in a spout at one side of said post and provided with a spring-pressed depressible valve, and means for forcing air under pressure into the space above liquid in the inverted container.

2. In a device for dispensing liquid from an inverted commercial container, a stand shaped to provide an open tray and having an upright socket at one side of said tray, a cap member threaded to t the neck of a commercial container and provided with a supporting post projecting from said cap member substantially in alinement with the axis of said threaded portion whereby the cap member and the container may be mounted on the stand by dropping the projection into the socket of the stand, said cap member having a laterally extending spout directed toward said tray and provided with an operator-controlled valve, and a pump mounted on said cap member and provided with a pipe extending within the container so that air may be forced into a space above liquid in the container to facilitate its discharge through said spout.

3. In a dispensing device for liquids, a base, and a removable cap member shaped for interlocking engagement with and to close a commercial container in upright position and having a chamber rovided with an outlet port, an air inlet pipe extending through said chamber and into the container and a supporting element on the cap member offset from said inlet and outlet, the base having a supporting element for cooperation with that of the cap member whereby the capped container may be maintained in inverted position.

4. In a distributing device for liquids, a cap formed with a thread for engagement with the threaded neck of a container, said cap also having a delivery spout and projections, said projections being provided with intercommunicating passages one of which opens in the container, a pump secured to one projection and a pipe leading from the opening of another projection to enter the container.

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