Tube holding and compressing means

1,576,821

March 16,1926.

E. R. HAMILTON

TUBE HOLDING AND COMPRESSING MEANS

Original Filed April g, 1925

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Patented Mar. 16, 1926. 1,576,821

UNITED STATES PATENT OFFICE.

EARL R. HAMILTON, OF PEKIN, INDIANA. TUBE HOLDING AND COMPRESSING MEANS.

Original application Hied April 2, 1825, Serial No. 20,218. Divided and this application filed August 8, 1825. Serial No. 48,587.

To dll whom it may concern:

Be it known that I, Earl K. Hamilton, a citizen of the United States, residing at Pekin, in the county of Washington and β State of Indiana, have invented certain new and useful Improvements in Tube Holding and Compressing Means; and I do declare the following to be a full, clear, and exact description of the invention, such as will 1® enable others skilled in the art to which it appertains to make and use the same.

This application relates to improvements in means for holding and compressing collapsible tubes, such as those in which various 15 kinds of pastes are marketed, and the invention is intended primarily for use in connection with an applicator to which the contents of the tube are delivered when said tube is compressed or collapsed. The ap²® plicator construction^ while illustrated herein in a general way, is claimed in my parent U. S. application Serial Number 20,213, filed April 2, 1925 and the present application forms a division of said parent case.

²⁸ One object of the invention is to provide a new and improved form of holder for a collapsible tube, so constructed that it may readily be carried from place to place or compactly stored without danger of leakage, ³⁰ provision being made whereby an empty tube may readily be removed and a new tube substituted therefor.

Another object is to provide an exceptionally simple and inexpensive, yet an efficient ³⁸ and reliable means for compressing the tube to discharge its contents.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the description ⁴⁰ being supplemented by the accompanying drawing.

Figure 1 is a longitudinal sectional view.

Figure 2 is an enlarged detail sectional view through a portion of the tube compress⁴⁸ ing means.

Figure 3 is a transverse sectional view on line 3—3 of Figure 1.

In the drawings above briefly described, which may be considered as disclosing the ⁸® preferred form of construction, the numeral 1 designates an elongated tube which is preferably formed of metal, said tube being provided at its upper end with a permanent stationary closure 2, while a removable clo⁸⁸ sure 3 is provided for its lower end. This removable closure is preferably stamped from sheet metal, in substantially the form of a cup., and the upper or inner portion of the continuous side wall 4, of said closure, is receivable removably in the lower end of SO the casing 1, any desired quick detachable connection being provided between the two. Preferably, the wall 4 is formed with headed studs 5.and bayonet slots 6 are provided in the casing wall to engage said studs. Be- OS tween its upper and lower ends, the wall 4 is provided with an outwardly stamped, externally serrated portion 7 constituting a rib which, may readily be gripped when the closure.3 is to be either removed or applied. 7® When in operative position, this rib of the closure 3, abuts the lower end of the tubular casing 1. .

In the construction shown, the bottom portion of the closure 3 is formed with an open- T® ing and with an annular depending flange 8 around the same. Within this flange, the upper end of a tubular discharge neck 9 is secured in any desired manner, the upper end if said neck being internally threaded as at 10 for engagement with the usual discharge neck 11 of a compressible tube 12 receivable in the casing 1. The lower end of the neck 9 is here shown as provided with an applicator 13 whose construction is fully M described and claimed in the parent application above referred to. The part designated at 14, is merely a pin normally closing the neck, which pin is withdrawn when it is desired to discharge some of the contents 90 from the tube 12.

I have provided novel means for compressing the tube 12 to discharge its contents. 27 designates a ram located in the casing 1 and adapted to engage the, upper end of the 85 above mentioned tube. This ram may well be in the form of a flat plate and it is carried by the lower end of a bar 28 disposed longitudinally in the casing, the upper end of said bar being preferably, though not neces- 100 sarily bent into C-shape as indicated at 29, the arms of the C, and ram 27, being formed with alined openings 30. A nut 31 is non-rotatably held between the above-named arms of the C-shape formation 29, and a longi- 105 tudinal screw 32 is threaded through this nut, said screw passing slidably through the openings 30. The upper end of the screw is swiveled as at 33 in the closed end 2 of the casing 1, and is provided with an appropri- 110 ate operating handle 34 by means of which the screw may readily be rotated. Obvious2

1,676,821 ly, by turning this handle in the proper direction, the ram J27 will be forced downwardly, thus compressing the tube 12 for the purpose of discharging its contents to the appli5 cator head, in desired quantities..

To normally cover the applicator head and associated parts, thus effectively protecting them against dust and the like and also preventing soiling of articles by coming M in contact with said head, I have .provided a cap 35 to enclose these parts. This cap fits frictionally over the lower end portion of the annular side wall 4 of the closure 3 and abuts the lower side of the rib. 7. When IS inserting a new tube into the casing 1 or removing an old one, the closure 3 is entirely detached from said casing 1 and may at that time carty with it the cap 35. Then, the screw threads 10 are readily accessible so 20 that the h&amp;w tube may readily be inserted after the removal of one whose contents have been discharged.

As excellent results are obtainable from the details disclosed.they are preferably fol25 lowed. However, within the scope of the invention as claimed, modifications may be , made.