US1790930A

US1790930A - lawton

Info

Publication number: US1790930A
Authority: US
Publication date: 1931-02-03
Anticipated expiration: 1948-02-03

Description

Feb; "3, "1931'. s. w. LAWTON HOLDER FOR COLLAPSIBLE TUBES Filed May 2, 1928 2 Sheets-Sheet l Patented Fel a. 3, 1931 PATENT OFFICE I STANLEY w. LAw'roN, OF NEW roux, 11. Y.

HOLDER r012 COLLAPSIIBLE m nus Applica'tionffiled ma 2, 1928; Serial No. 274,505.

j invention relates particularlyto-devices of the character set forth in my Patent- 1,617,917. One object is to provide a con struction into' which a collapsible. tube may be readily inserted .andin which the tube cream, or the like. Another object is to provide a construction of this character in whichthe outlet is automatically opened during the squeezing operation and automatically closed at the end of the squeezing operation Another object is to provide means for automatically cutting off the ejected. paste or Another ob-ject-is'to simplify and. j

' the tube to compress the same. These jaws 1 cream. cheapen the construction. Y is In'its preferred form the -casing has an outlet for receiving the neck of a collapsible tube and the body of the tube is inserted between two pivoted jaws. These jaws are mounted to slide in the casing. -The jaws are actuated by finger levers in compressing the tube and are retracted by a spring. A cut-off valve is mounted at the end of the casing to close the outlet andis operated by the jaw actuating mechanism to open the out-' let at the beginning of the jaw closing or squeezing movement and a spring returns the cut-off valve to its closed position when the jaws are released. The jaws are fed downwardly by gravity after each squeezing operation.

Fig. 1 is a perspective view of one'form of device involving my invention. Fig. 2 is a perspective View showing the jaws and the mechanism for actuating the jaws and the cut-ofi valve.

Fig. 3 is a horizontal section and plan view showing the valve actuating means.

Fig. 4. is a detail vertical sectional view of the valve actuating mechanism.

Fig. 5 is a vertical sectional view of the apparatus with a tube in place and showing a modified form of the outlet control valve.

Fig. 6 is an end view of the construction of Fig. 5 looking upwardly.

Fig. 7 is a horizontal sectional view and plan of the construction of Figs. 5 and 6.

to v

Fig. 8 is a fragmentary vertical sectional closes the valve and cuts ed the paste. This view of the same showing the valve mechan'ism. 7

The casing 10 may be formed of sheet metal with the back and sides integral: and provided with inwardly turned flanges 11. The top and bottom may be secured in any suitable manner. The bottom plate is provi'ded with an outlet;neck"12 to receive the usual nozzle or neck of the collapsible tube 13. 'A screw 14 is provided forclam'ping the v nozzle in the neck 12. I H

The slide 15 is guided between the back and 1 sides of the casing and the flanges 11.1; The I jaws l6-are pivotally supported by the slide 15 and adapted to grip the opposite sides of arepreferably provided with striated-shouh' ders 17'. adjacent their pivotal axes which con-. stitute eccentricv gripping members. The lower and outer edges of the jaws arenormal lypressed apart by the'bowed spring18 which has its ends sunk into the lower edges of the jaws." r I The bars 19, are hinged or pivoted in the upper andlowerxends of'the casing and pro-. vided wi'th. projecting finger; pieces 20 "by which they maybe pressedtoward each other so as to close the aws, upon the opposite sides of the tube. NVhe'n the finger pieces 20 are released the. spring 18 swingsthe jaws om wardlyand'thus returns the bars 19-to their normal positions of'rest. .A's'the jaws open up they drop down slightly readyto again grip; the sides of the tube in'the next compres- Sion'action. 7 5 i The cut-oil" valve 21is pivotally' secured to the bottom plate by a screw 22 and has a tai'lpieceg23which projects through a slot 24: in the casing into the path of movement of the 1 cam surface or shoulder 25 on thelower end of'one offthe bars 19. A spring 26 tends to hold thefmeinber 21 inposition to close'th'e outlet from theneck '12. When the bars 19 are operated tomovelthejaws 16"and compressthetube' the shoulder 25' presses against the lug o'r tailpiece 23 and opens. the valve to allow thecontents of the tube-tobe exuded. When thebar's 19 are released a spring 26 spring pressed valve co-actingwith the outvalve 30 is pivoted at 31 and its rearend 32 extends into the bottom of the casing where it is engaged bythe spring 33 which yieldingly holds it in the closed position. The lever 34 is interposed between the upper end 32v of the valve lever and the shoulder 35 on the pivoted bar 36 so that when the front edge of the bar 36 is moved toward the axis of the casing the lever 34 will be tiltet and will retract the valve 30. When the bar 19 is re leased the spring 33 will return the valve'3O to the'closed position. It should be understood that various other changes may be made without departing from the spirit and scope of'rny invention.

I claim: 7

1. A tube press, comprisin acasing having side walls with guide anges and an outlet, a slide guided in said casing by said walls and flanges, jaws pivoted to saidslide, operating bars pivoted in the upper and lower ends of the casing and engaging said jaws, externally accessible op'erating'means open said-.valve and spring means for retracting saidjaws and closing said valve.

5. A tube press comprising a casing havingarecess with an outlet and a clamp screw for supporting a compressible tube, a slide guided in the casing, tube compressing jaws hinged to said slide and movable therewith, manually operable swinging bars for operating said jaws hinged to the casing and projecting forwardly to engage the jaws and a valve for the outlet actuated with said jaws.

tube press comprising a casing having an outlet, a slide guided in the casing,

a pair ofljawshinged to said slide and adapted to compress a tube, operating bars co-actingwithsaid jaws to compress the tube, a valve {for said outlet, and finger levers hinged to sald casing near its oppo-- site sides and secured to said-bars for'actuating said jaws and said valve.

-7. A tube press comprising a casing having an outlet at its lower endprovidedwith means for holding the neck of a tube, a spring pressed valve co-acting with the outlet for closing the same, movable jaws for compressing the sides of a tube in said casing, sliding meansfor supporting said jaws,

and manually operablemeans for moving said jaws to compress a tube and open said valve and a spring for retracting said jaws.

* STANLEY VWLAlVTON.

including finger levers connected to said bars and means actuated by the finger levers for closing and opening the outlet.

2. A tube press comprising a casing having a means for supporting a compressible tube, a slide uided by thejinner walls of the casing, tube compressing jaws hinged to said slide and movable therewith, manually operable means for operating said jaws and a valve operatively connected to said manual operating means for opening and closing the discharge outlet of said tube.

3. A tube press comprising a casing, a

slide guided in the casing, movable aws.

carried by said slide and adapted to compress a tube, operating bars 'co-acting with said jaws to compress the tube and finger levers hinged to said casing for operating said bars and a closure device actuated by one of said bars.

4:. A'tube press comprising a casing hav ing an outlet at its lower end provided with means for gripping the neck of a tube, a

let forclosing the same and'adapted tobe swung to one side to clear the" outlet, movable jaws for compressing the sides of a tube in said casing, means'for supporting said'jaws, and manually operable means for "moving said-jaws to compress a tube and me A