US878766A

US878766A - Friction-top can.

Info

Publication number: US878766A
Application number: US30904906A
Authority: US
Inventors: Karl S Breckenridge
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1906-03-31
Filing date: 1906-03-31
Publication date: 1908-02-11
Anticipated expiration: 1925-02-11

Description

No. 878,766. PATENTED FEB. 11, 1908 K. s. BRECKENRIDGE.

FRICTION TOBGAN. APPLIQATIOK FILED MAB..81.1906.

UNITED STATES PATENT -()FF IOE. v

KARL S. BRECKENRIDGE, OF CHICAGO, ILLINOIS, ASSIGN OR TO AMERICAN CAN COMPANY, OF NEW YORK, N. Y., CORPQRATION OF NEW JERSEY.

FRICTION-TOP CAN.

. No. arenas.

Specification of Letters Patent.

Patented Feb. 11 1908.

Application filed March 31 1906. Serial No. 309.049.

. To all whom it may concern 3 Be it known that I, KARL S. BRECKEN- RIDGE, a citizen of the United States, residing in Chicago,-in the county of Cook and State of Illinois, have invented a new and useful 1m rovement in Friction-Top Cans,

ofwhich t e following is a specification. My invention relates to improvements in the construction of friction top cans or cans which are arlapted to be repeatedly closed by simply pressing what is known as a friction ca or cover into the opening in the can I top or ead'which is surrounded by an annular depending friction seat wall or flange. Heretofor'e considerable difllculty has been experienced in the practical use of friction top cans-1n securing a liquid tight closure,

" the can 13 opened by prying off the friction ea or cover, duster dirt which may have colect'ed in the annular groove of the can and alsofrom the circumstance that when top surrounding the outer edge or rim of the horizontally projecting flangeof the ea; or

, cover,.or sawdust orother material in w ich the-cans are frequently packed for shipment,

vciolle'ctsiinsuch groove or channel, and is liabl'eto fall into the can and get mixed into result.

40. "the 0 ening therein and an outer annular. raise rim or flange uniting said to or head the aint or other material in the can.

T e object of my invention is to provide a simple, strong, eflicient and durable construction of friction top can by means of which these difficulties may be practically obviated or overcome.

My invention consists in the means I en ploy to practically accomplish this object or That is to say, it consists in connection with the body of the can, and the customary so-called friction top or upper head therefor, furnished with an annular depending friction seat wall or flange surrounding to the can body, with an annularr epression or channel between such outer raised rim and the inner depending friction seat wall or flange, of a friction cap or cover having the customary annular friction seat; wall or flange adapted to fit within the annular friction seat wall or flange of the can-top and provided with an outwardly projecting rim or flange'extending over the raised outerrim of the can top or head and adapted to engage said outer raised rim of the'can top when the friction cap or c'over'is forced home on the can and thus afford aposltive stop or limit der or rim 1/ on the can top.

to the extent to which the ea or cover may be forced into the can top. his outwardly projecting flange ofthe friction cap or cover is furnished with an annular groove enchannel which serves to strengthen and stiffen the same. By these means, I am enabled to produce a successful and practical liquid tight closure for friction top cans, as in my can, the friction can or cover has a positive stop to limit the extent to which it can. be

forced into the friction top or head ofthe can and thus entirely obviates the prolific cause of leakage in-friction to cans, due'to the cover being driven too Far and thus stretching, expanding and cracking or breaking the annular depending friction seat wall or fian e of the can top the lower ed e of which 'lange is left plain to give the flange the necessary elasticity and tight rip upon the cover. And at the same time y my invention, the annular channel or groove in the can top between its outer rim and its friction seat wall or flange is covered, closed and protected from admission of dust, dirt or sawdust or other material by the outwardly projecting rim of the cover which extends over and fits snugly'down against the outer raised rim of the can top.

In the accompanying drawing forming a part of this specification, Figure 1 1s a central Vertical sectional view of a friction top can embodying my invention. plan view and Fig. 3 is a detail sectional view of the friction cap or'cover.

In the drawing, A. represents the can body, B the friction'top or upper headfilthe bottom head and D the friction cap or cover.

The bottom head (1 is united to the can body Fig. 2 is a I can body is preferably also soldered. The

annular top or head B is also furnished with a depending annular friction. seat wall or flange If, surrounding the opening B in the can top. The annular can top B also has an annular depression, groove or channel I) between its outer annular raised rim b and its inner annular shoulderb at the junction .stop or limit to the extent to which the cover ,may be driven into the can top and thus ,or cracking the annular friction seat. wall or 'rn'aterials from the upper surface of the-can of its depending annular seat wall or flange I b, this groove or channel serving to stiffen and strengthen the annular can top. I The friction cap or cover I) has the customary friction seat wall or flange (1 and an j outwardly projecting flange d furnished with 5 a'fold d at its outer rim or edge, which exl tends over and is adapted to engage the; outer raised annular shoulder or rim of the j annular top B, and thus serve as a stop or limit to the extent to which the friction cap or cover I) may be forced into the annular top B. 'lhe outwardly projecting flange (1 is also furnished with an annular depression groove or channel d between its outer auj nular shoulder or rim (1 and its inner annular shoulder d which is at the junction of the l depending annular friction seat wall or i flange d. The inner and outer annular l shoulders (I and (F of the friction cap or cover- D are preferably flush with each other I so that the pressure of the plunger or tool used in driving or forcing the cap or cover I) into the annular top B of the can may come partially upon both these shoulders. As the outwardly projecting flange (1 of the friction cap or'eover D projects over and fits against the. outer annular raised shoulder 12*. of the can top B when the cover I) is forced home, it thus serves as an absolute and positive prevents all danger ofstretching, breaking flange b of the annular top B and at the, same time effectually closes and excludes dust, dirt and sawdust from the upper surface of the annular can top. A slight clearance space :1: may be left between the upper surface of the annular top and the under surface of the flange of the cover D so that the contacting surfaces between the annular top and the cover will be only at the friction seat walls or flanges b and d and at the annular stop shoulders I) and 1 I claim:-

1. In a friction top can; the combination With an annular top B having an outer annular raised shoulder, and an inner annular depending friction seat wall surrounding the opening in the annular top of the can, and having an annular channel within said outer annular shoulder,- of a friction cover having an annular fri'ction seat wall fitting within the annular friction seat wall of the can top and provided with an outwardly projecting flange having anouter rim extending over and fitting against the said outer annularraised shoulder on the can top to serve a. stop and limit the extent to which the said friction cover may be forced into the annular top of the can and to exclude dirt or' other top, said annular top and cover contacting only at their interengaging friction seat walls and at their outer annular shoulders, sub stantially as specified.

2. In a friction top can, the combination with an annular top B having an outer annular raised shoulder, and an inner annular depending friction seat wall surrounding the opening in the annular top of the can, of a friction cover having an annular friction seat wall fitting within the annular friction sea-t wall of the can top and provided with an outwardly projecting flange having an outer folded rim extending over and fitting against the said outer annular raised shoulder on the can top to serve as a stop to limit the extent to which the said friction can or cover may be forced into the annular top ofv the can and to exclude dirt'or other materials from the upper surface of the can top, said can top having also an inner annular shoulder 3. In a friciton top can, the combination with an annular can top having inner and outer annular raised shoulders with an annular channel between said shoulders, and a depending friction seat wall surrounding the opening in said top, of a friction cover having an annular friction seat wall fitting withinsaid friction seat wall of the can top and an outwardly projecting flangeextending overand engaging the outer annular-shoulder of the can top to limit the extent to whichthe cap or cover may be forced into the can top, said. annular top and cover contacting only at their interengaging friction seat-walls and at their outer annular shoulders substantially as specified.

4. In a friction top can, the combination with an annular can top having inner and outer raised annular shoulders and a depending friction seat wall surrounding the opening in said top, of a friction cover having an annular friction seat wall and an inner annularshoulder and an outwardly projecting rim provided with a marginal fold and extending over and engaging theouter annular shoulder of the can top to limit the extent to'which the cap or cover may be forced into the can top, said can top having an annular channel between its inner and. outer annular shoulders, and said friction cover having aniannular channel between the outer marginaffold of its rim and its inner annular shoulder, *said annular top and cover contacting only. at their interengaging friction seatwalls and at their outer annular shoulders substantially as specified KARL S. BRECKENRIDGE. Witnesses:

H. M. MUNDAY, PEARL 'ABRAMs.