US2081877A - Means for closing sealing rings - Google Patents

Description

May 25, 1937. E. E. SHANOR MEANS FOR CLOSING SEALING RINGS 2 Sheets-Sheet l Filed Nov. '7, 1955 y 1937. E. E. SHANOR MEANS FOR CLOSING SEALING RINGS Filed Nov. '7, 1955 2 Sheets-Sheet 2 Patented May 25,' 1937 aosnsrr MEANS FOR CLOSING SEALING mes Edgar E. Shanor,

Petroleum Iron Sharon, Pa.,

Application November 7,

Sharon, Pa.,' assignor to The Works Company Ohio, a corporation of Ohio 1935, Serial No. 48,731

. '1 Claims. (Cl. 220-61) The invention relates generally to devices for securing and sealing the heads of shipping drums, barrels, pails and other containers of the type in which the cover is embodied in a head for a substantially open end container or the cover is applied to a necked opening in the head.

It is conventional practice in containers'of the fully open end type, as well as containers having necked openings, to employ a slip cover having a sealing flange which cooperates with a gasket supported by a bead or shoulder on the container and to secure said parts by a sealing ring or chime. in the form of a split U-ring or channel. Many expedients have been. proposed for securing the ring in proper clamping and sealing relation. Sometimes it has been secured by soldering or by welding and sometimes provision has been made for contracting it through the medium of end coupling devices which have the merit that they permit reuse of the chime and also enable it to be applied to containers which vary somewhat in dimension. Some of the devices heretofore proposed are wholly impracticable and while some are good, they suffer certain objections which preclude them from being seriously considered by the industry. Some are objectionable on account of the cost, some are objectionable for that while they might serve more or less adequately for sealing one type of closure, for example, closures end type, they are not desirable for closures of necked openings, and some are objectionable because they entail overhangs or projections liable to catch onto something and disrupt the seal.

Principal objects of the invention are to provide a closing device for removable chime rings which will be wholly free from the objections recited, which will be inexpensive both. as to initial cost and upkeep, which is simple in construction and mode of operation,-and which is highly efiicient as a clamping and sealing member both as regards covers for full end openings as well as covers for necked openings.

The nature, characteristic features and scope of the invention will be more readily understood from the following description, taken in connection with the accompanying drawings, forming a part hereof, wherein Figure 1 is a sectional view of a container having an opening sealed in accordance with the invention.

Fig. 2 is a plan view and Fig-.3 is an edge view of the link and its accessories in the open position of the sealing ring.

channeler walls,

for containers of the fully open Fig. 4 is an edge view showing the relation 0 the parts in the closed position.

Figs. 5, 6, '7 and 8 are detail views of the link.

Fig. 9 is an edge view of a modified form of link in the open position.

Figs. 10 and 11 are plan and edge views of the same in closed position. 7

In the drawings, the numeral 5 represents a container having an opening terminating in a circumferential head 6 which supports a sealing gasket 1 for the overlying flange 8 of a slip cover 9; and Ill represents a split ring or chime whose y when the ring is contracted, apply clamping action in the well-known way to the bottom of the bead and to the top of the cover flange.

According to the invention, a closing member is provided between the spaced ends of the chime for drawing them towards each other in such way to avoid undesirable and hazardous overhangs or projections. The member is designed to be rocked or rotated on one or the other of its ends in order to shorten the straps whereby it is coupled to the chime ends, the straps, having a certain order or degree of resiliency to admit of the operation stated and to insure coniormability.

Referring to Figs. 2, 3 and 4:, and the detail Figs. 5 to 8, inclusive, the closing device is a metal link generally designated H and comprising side bars or cheeks l2 joined by rounded end bars l3. Metal straps It and I5 serve as coupling devices for joining the end bars i3 of the link to adjacent ends of the chime. The remote ends of the straps lie within the confines oi the respective chime terminals and their other ends are looped around the end bars of the link in such way as to constitute pivotal or rocking bearings for them. It will be understood that the straps are secured in an operative way to the link and to the chime in any suitable manner as, for example, by welding.

One of the side cheeks of the link is provided with a laterally offset eye or loop l6 and it will be manifest that by inserting a screw driver or other implement therein, the link may be rocked on one 0! its end axes, the effect of which is to lap the straps l4 and I5 and so contract the chime. It will be evident that by constructing the straps of spring steel a desirable compensating adjustment is insured.

Manifestly, the closing device or link may be shackled in the closed or inverted position in various ways. However, it is a merit of the invention that one of the side bars or cheeks is provided with an ofiset l I of suflicient length to extend beyond the inside head when the link is inverted. The offset is drilled, countersunk and tapped for the reception of a set screw I! which, when screwed home, bearsagainst, for example. a part of the container or its cover l9 and thus the link is held in a very simple way against accidental opening.

In the modification, Figs. 9, 10 and 11, the closing operation is substantially the same as already described, that is to say, a link 20 is coupled at its ends to flexible members or straps 21 Joined to the chime terminals. Link 20 is formed with a laterally offset eye or loop 2| for the reception of a screw driver or other implement for eflecting a rock-over operation of the link, and with' an endwise ranging bar or finger 22 for securing link 20 in the rocked-over or closed position. Qne

way of accomplishing this is to provide a resilient tongue 23 by slitting the proximate chime end as at 2Q. manifestly, when the Kink is in the rocked-over position, the finger 22 will he in a position to be engaged by tongue 23 when reheat to place.

There also may be provided, if desired, means serving as a telltale against pilfering or tampering. As a matter of fact, such means well might serve, with either form of closing device, as an instrumentality for holding the closing device in the closed position. For example, a wire 25 may be looped through and around the parts in the closed position and secured by a seal 28.

Having described the invention, what is claimed as new, is:-

l. The combination of a container having an opening whose defining wall is formed with a gasket seat, a gasket, 9. cover having a flange which bears upon the gasket, a sealing ring for sealing the parts in the relation stated, said ring having spaced apart end straps, and a slack take-up member positioned in the gap between the strap ends and journaled with relation to the strap ends whereby it can be rotated to compel the straps to move toward relative lapping position and thereby contract the ring, and means for securing the slack take-up member in the position to which it has been rotated.

2. The combination of a container having an opening whose defining wall is formed with a gasket seat, a gasket, a cover having a flange affording a bearing on the gasket, a sealing ring for sealing the parts in the relation stated, said ring having spaced apart bendable end straps whereof each is, provided with a journal bearing, and a slack take-up member occupying the gap defined by the space between the end straps and journaled in said bearings whereby it is adapted to be rotated to cause such relative movement of the straps as will contract the sealing ring,

part by bendable spaced apart end straps, and a slack take-up member positioned in the gap between the end straps and having Journal connection therewith whereby it may be rotated on either of said straps to cause such. relative movement of them as will serve to contract the chime.

4. The combination of .a contractible sealing chime with spaced apart ends, and a sleek takeup member entirely confined to thespace defined by the gap between the chime ends and having journal connection with the chime ends whereby it is adapted to be rotated within the' gap to compel a closing movement of the chime.

5. The combination of a container having an opening a wall of which is provided with a sealing edge, a cover having a sealing flange, and a sealing chime comprising a U-ring having spaced apart ends, spacedapart resilient metal straps rigidly joined to the ends of the U-ring and constituting extensions thereofia slack takeup memberoccupying the space defined by the L the channel type having spaced apart ends continued by spaced apart relatively flat extensions, and a slack take-up member substantially confined to the gap between the chime ends and free from parts projecting radially beyond the chime, said slack take-up member being journaled in said flat extensions so that it may be rotated and thereby cause closing movement of the extensions, said slack take-up member having a part adapted to extend inwardly oi the cover flange 'for cooperation with means engaging said flange to hold the slack take-up member .in locked position.

7. The combination of a receptacle having a sealing flange, a cover having a sealing flange cooperating therewith, and a sealing chime having spaced apart ends continued by spaced apart metal straps, and a slack take-up member wholly confined to the gap defined by the space between the chime ends and having Journals mounted in the straps whereby it is adapted to be rotated to compel closing movement of the straps, said slack take-up member having means wherebyv it may be manipulated and having an offset of sufllcient length to extend inwardly oi the sealing flange o! the cover when the chime is in con-' EDGAR E. SHANOR.

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