US1987428A

US1987428A - Ejector for collapsible tubes

Info

Publication number: US1987428A
Application number: US728908A
Authority: US
Inventors: Whiteman William
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-06-04
Filing date: 1934-06-04
Publication date: 1935-01-08
Anticipated expiration: 1952-01-08

Description

1935 w. WHITEMAN 1,987,428

EJECTOR FOR COLLAPSIBLE TUBES Filed June 4, 1934 ATTORN EY BY F .5...

Patented Jan. 8, 1935 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to new and useful improvements in an ejector for collapsible tubes.

The invention has for an object the construction of an ejector which is characterized by a sheet metal shank for attachment across one face at the rear of a collapsible tube, and provided with enlarged ends for location slightly outside of the sides of the tube, whereby either of the ends may be turned for the purpose of winding up the collapsible tube for the discharge of its contents.

More particularly the invention has particular reference to an arrangement at the junction of the shank with the enlarged ends whereby the ejector is reinforced at these areas so as to prevent possibility of bending during the ejecting operation.

Still further the invention proposes an arrangement whereby another embodiment of ejector is characterized by an arrangement wherein the enlarged ends are normally bent behind the other side of the tube so as to reduce the compass of the tube and ejector during manufacture, storing and shipping.

Still further the invention also proposes an arrangement whereby when the enlarged ends are bent into operative positions, reinforcement strips which are adjustably arranged upon the shank are adapted to be moved intothe operative 30 positions for reinforcing the junctions of the shank with the enlarged ends.

Still further the invention proposes the construction of an article as mentioned which is simple and durable and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:-

Fig. 1 is a front elevational view of a collapsible tube with an ejector according to this invention.

Fig. 2 is a plan view of Fig. i.

Fig. 3 is a fragmentary enlarged sectional view taken on the line 3--3 of Fig. 1.

Fig. 4 is an elevational view of a collapsible tube and ejector constructed according to a modification of this invention.

Fig. 5 is a plan view of Fig. 4.

Fig. 6 is a fragmentary view similar to the upper portion of Fig. 4 but illustrating the ejector in operative position.

Fig. 7 is a developed view of an ejector for use on a collapsible tube.

Fig. 8 is a fragmentary side elevational view of a collapsible tube showing the ejector illustrated in Fig. '7 applied.

Fig. 9 is a fragmentary front elevational view of a collapsible tube with an ejector according to another embodiment of this invention.

The ejector for tubes comprises a sheet metal shank 10 for attachment across one side 11 of the rear 11 of a. collapsible tube 11, and having enlarged ends 12 for location slightly outside of the edges 11 of the collapsible tube. The junctions 13 of the shank 10 with the enlarged ends 12 are reinforced by reason of being arched or channelled or similarly shaped as clearly illustrated in Figs. 1-3, particularly see Fig. 3 wherein a cross-sectional view is shown. The shank 10 is attached by several rivets 14 to the collapsible tube, these rivets engaging through the shank and through the ends of the tube.

The contents of the tube may be disposed as required by first removing the closer cap of the tube and then turning the ejector by gripping one of the enlarged ends so as to wind up the rear of the collapsible tube and so force the material from the tube. It is a feature of the construction that the junctions 13 are reinforced merely by the proper shaping of the metal so that a comparatively light, sheet of material may be used for the manufacture of the ejector, and at the same time sufllcient rigidity and stiffness be provided to prevent bending and deforming of the ejector during use.

In Figs. 4-6 inclusive another embodiment of the invention has been disclosed which comprises a sheet metal shank 10 for attachment across one side 11 of the rear end 11' of a collapsible tube 11 and having enlarged ends 12 normally bent behind the said side 11 so as to reduce the compass of the device when manufactured, when stored, and when shipped.

The junctions 13 of the shank 10 and the enlarged ends 12 are plain, not channelled as previously described so as to be readily bendable so that the enlarged ends 12 may be bent to extended positions from their normal positions as illustrated in Fig. 4. In Fig. 6 the enlarged ends are shown in the extended operative position.

Reinforcement strips 16 are adjustably mounted upon the shank 10 for connection with the enlarged ends 12 when the enlarged ends are in the extended positions so as to reinforce the junctions to prevent any possible bending during the use of the ejector. More particularly the strips 16 are formed with elongated slots 1'! through which the rivets 14 which attach the shank 10 to the tube extend.

The arrangement is such that frictionally the strips 16 maintain either retracted positions as illustrated in Fig. 4 or they may be manually extended. In the extended positions the free ends 16' are bent through openings 12 formed in the enlarged ends 12 so as to reinforce the junctions 13'. In Fig. 6 the reinforcement strips 16 are shown in their extended positions and in positions in which the ends 16' are engaged through the openings 12- and clamped down upon the material of the enlarged ends adjacent the opening.

In Figs. 7 and 8 another embodiment of the invention has been disclosed wherein an ejector for a collapsible tube is shown and comprises a sheet metal shank 10 having a bendable side portion 10 adapted to be clamped upon the rear 11 of a collapsible tube 11'. The dot and dash lines 19 in Fig. '7 indicate the line of bending of the metal shank.

The ends of the metal shank 10 are formed with enlarged portions 12 for location slightly outside of the edges of the collapsible tube. It is customary to close the rear ends of the collapsible tube with a metal strip which is bent along a longitudinal center line and clamped upon the end of the collapsible tube. The form of the invention illustrated in Figs. fl and 8 is very similar to the clamp used, and is intended to be substituted for such a clamp strip and differs only in the provision of the enlarged ends 12 whereby the device comprises an ejector as previously described relative to the other forms.

In Fig. 9 another embodiment of the invention has been disclosed wherein the ejector comprises a sheet metal shank 10 for attachment across one side 11 of the rear 11 of a collapsible tube 11' and is associated with enlarged ends 12 which are pivotally connected thereon. More particularly pintle pins engage through adjacent portions of the ends of the shank 10 and the enlarged ends 12 and serve to pivotally connect these parts. The arrangement is such that the ends 12 may be extended as illustrated in Fig. 9 in which positions the device is in operative position-ready for use. During shipping and when packed the device may be placed with the enlarged ends 12'- folded inwards so as to reduce the compass.

While I have shown and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclom and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is:-

1. An ejector for collapsible tubes, comprising a sheet metal shank for attachment across one face of the rear end of a collapsible tube and having enlarged ends for location slightly outside of the sides of said tube, and the junctions of said shank and the enlarged ends being reinforced, and rivets for the attachment of the shank upon the rear end of said collapsible tube.

2. An ejector for tubes, comprising a sheet metal shank for attachment across one face of the rear end of a collapsible tube and having enlarged ends normally bent behind the other side of said tube, and reinforcement strips adjustably mounted on said shank for connection with said enlarged ends in extended positions of the enlarged ends for reinforcing the Junctions of the shank and the enlarged ends.

3. An ejector for tubes, comprising a sheet metal shank for attachment across one face of the rear end of a collapsible tube and having enlarged ends normally bent behind the other side of said tube, and reinforcement strips adjustably mounted on said shank for connection with said enlarged ends in extended positions of the enlarged ends for reinforcing the junctions of the shank and the enlarged ends, said reinforcement strips having elongated apertures engaged by rivets by which the strips are adjustably supported so as to be extendable and the outer ends of said reinforcement strips being engageable through openings in said enlarged ends and clampable upon the material adjacent said openinss.

WILLIAM WHITEMAN.