US1569865A - Collapsible-tube-closing apparatus - Google Patents

Description

H; a. LERMER COLLAPSIBLE TUBE CLOSING APPARATUS Jan. `19 1926.

Filed Feb.V 12, 1925 Patented Jan. 19, 1926.

, #UNITED STATES PATENT OFFICE.

HERMAN B. LERMER, NEWARK, NEW JERSEY, ASSIGNOR TO HYGIENIC CO., OF NEWARK, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

COLLAPSIBLETUBECLOSING APPARATUS.

Application led February 12,` 1925. Serial `No. 8,616.

To all when t may concern: j

Be it known that I, HERMAN B. LERMER, a citizen of the United States, residing in Newark, in the county of Essex and State of New Jersey, have invented new and useful Improvements in Collapsible-TubeClosing Apparatus, of which the following is a specifcation.`

This invention relates to apparatus for folding, flattening and fastening the seam at the rear or base end of collapsible tubes and has as its main object to provide a simple hand operated device for folding the juxtaposed edges of a tube to form an elongated bight at one operation, the device being further provided with means whereby, at a second operation, the fold may be flattened to produce a hermetically closed joint or seam.

A. further feature is in the provision of mean-s for performing the dual operation, of folding and flattening in a single apparatus, in producing a neat appearing and effective closure, in a practical and rapid manner and with a moderate expenditure of physical effort.

These and other important aims and objects are attained by the novel construction, combination and arrangement of parts hereinafter described and shown in the annexed drawing, constituting an essential portion of this disclosure and in which:-

Figure 1 is a front elevational view of an embodiment of the invention, ready for operation.

Figure`2 is a side elevational view of the same.

Figure 3 is a partial sectional, partial plan view thereof, the section being taken on line 3 3 of Figure 2.

Figure 4L is an enlarged transverse sectional view taken on line 1f-Jl of Figure 1.

Figure 5 is a similar sectional view taken on line 5 5 of Figure 3.

Figure 6 is a diagrammatic view illustrating the first operation in seaming a collapsible tube.

Figure 7 is a similarview of the second operation, showing the tube end as folded as indicated in Figure 1.

Figure S is another like view showing the tube end as completed.

Referring to the drawing in greater detail, the numeral 10 designates a stand base, from which rises a column 11, curved at its upper end towards the front and blended into a vertical cylindrical guide 12 split lon gitudinally at the front and having pairs of lugs 13 adapted to receive clamp screws 14 by which the bore of the guide 12 may be slightly adjusted to com ensate for` wear.

A plunger' 15 is slida ly mounted in the guide, its upper end being finished convexly, as at 16, and passing through the upper portion of the plunger is a in 17 acting to receive the thrust of a coiled compression spring 18 resting on the top of the guide, encircling the plunger and exerting pressure to raise the same. j V

A pair of lugs 19 extend upward from the column 11, above and rearward of the guide 127 and mounted between the lugs is a handle lever 20, pivoted on a pin 21 and having a curved, forwardly extending portion 22 disposed in such manner as to engage the curved end 16 of the plunger and depress the same when the lever is raised.

The base 10 is provided with opening 23 through which may be passed screws or equivalent fastening to secure the stand rigidly `upon a support.

At the front of the base 10 is a block extending across from side to side and held infixed position by screws 25 passed up through the base as shown.

This block is a parallelogram in shape, having a level upper surface and bevelled at its front upper corner as at 26, the left hand portion being rounded as at 27, thus blending the upper surface and angular edge smoothly.,

On the right hand 'side of the block is a i longitudinal groove 28, having slightly converging sides and being smoothly finished, the other side of the block being smooth and level as at 29, presenting an anvil surface.

Stops 30 are held to the ends of the block by screws 31, alining with the groove 28 and surface 29 respectively, and rearward of the groove and surface are guide strips 32 and 33 having transverse slots through which pass clamp screws 34permitting individual afjustment relative to the frontof the block.

Fixed centrally in the lower end of the plunger is a flat rectangular bar 35 substantially equivalent in length with the block 24, one of the lower level edges 36 being adapted to make contact with the surface 2!) at the left hand portion of the block, and

the right hand'portion of the block is formed to present a relatively narrow edge 37, extending belon the surface 36 and adapted to enter the groove 2S upon actuation of the lever 20.

ln operation, the plunger l5 being held by the spring to retain the bar in a raised position, a lilled collapsible tube 40 is held b v hand so that its end atl closed by flattening, makes contact with the guide 32 over the groove 253, the stop 3l) assuring the correct position ol the tube.

llvhen the tube is thus positioned the hand lever 2l) operated, forcing the bar element 25T downward and. as shown in Figure at, forming a transverse imlentation entirely across the end ol the tube and ell'ecting the first operation in folding, the tube assruning the shape. shown in Figure T.

The second operation is performed by moving the tube lll to the lelt over the anvil surface 2f), again actuating the hand lever, bringing the hammer element 3G forcibly downward, as in Figure 5, closing the seam and completing the closing operation, the linished tube appearing in Figure 8.

lt is also to bc noted that a clasp or clip 4Q ot generally U shaped cross section, is shown in Figures (3, T and 8, as applied over the flattened and closed end ot' the tube, the clip being ot thin yielding sheet material, as aluminum, making close contact withv the walls ot' the tube, acting as a re-entorcement and clamp for the saine, the clip being bent lengthwise over the tube, in the manner indicated, allording a lirm and secure closure, preventing the. possibilit-y of air or moisture leakage.

Although the foregoing is descriptive ol* the prelierred embodiment ot the invention, minor cln'lnges may be made in its construction without,eonllicting with the scope of the claims hereto appended.

Having thus described my invention, what l claim as nevv and desire to secure by Letters latent, is:-

l. A portable seaming apparatus` l'or elosing collapsible tube ends comprising a stand, a spring supported plunger slidable therein, a die bloclt on said stand, lsaid block having a narroiv longitudinal groove, a bar carried by said plunger to indent the tube end by pressing it into the groove, and a manually operable lever to actuate said plunger.

2. it portable seaming apparatus t'or closingcollapsible tube ends comprising a stand, a spring supported plunger slidable therein, a die bloei; on said stand, said block havingl a narron' longitudinal groove in one portion thereof and a level surface on an adjacent portion, a horizontal bar carried by said plunger, said bar having a part adapted to enter the groove in said block and another partI to make contact with the level surface thereof, and a hand lever tor directly actu ating said plunger.

8. A portable seaming apparatus i'or closing collapsible tube ends comprising a stand, a plunger slidable therein, a die bloeit on said stand, said bloeit having a narron longitudinal groove in one portion thercot and a level surface on an adjacent portion, the l'ront edge ol said bloeit being bcvellcu throughout the length and curved to blend with the level upper surface. a horizontal bar arried by said plunger, said bar having a part adapted to enter the groove in said block and anotherl part to malte contact uith the level surlace thereol, indeiiendeut means adjustable on said blocli to guide a tube in register with the groove and tor adjusting a tube upon the level portion ol said block, a spring normally raising said plunger, and manual means for deprcsriing the plunger.

Al. it portable scaming apparatus for indenting and lolding collapsible tube ends comprising upper and lower dies arranged in pairs, one oit' the pairs l'n'csenting respectively tongue and groove formation adapted to indent and initially told the llattened end of a tube, and the other pair presenting llat surfaces to flatten and linish the lfold, and a single means 't'or actuating said upper dies.

5. A portable apparatus lor sealing collapsible tubes having llattened ends enveloped in clasps, comprising a stationary stand having a die block on its upper surface, a plunger slidably mounted in said stand, said plunger being nornn'llly spring pre sed away lrom .said bloeit, a hand lever to depress said plunger, a die bar tired to the plunger to extend over the block, an anvil surface on one side olf said bloeit, a longitudinal groove in the other side thereof. said block having a bevellcd troni edge a hammer element on said bar to contact with the anvil surface, a projecting die member on said bar cooperal ive with the groove to produce a transverse Al'old in the end ol" a tube and its clasp, the told thus produced being llattened between the hannner and anvil surlace and independently adjustable gages :t'or each operation.

This speeilicatiou signed this 10th day olf lvebruary, 1925.

HERMAN ll. LICRMEH.

Utl

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