US2474461A

US2474461A - Closure fastener for tumbling barrels

Info

Publication number: US2474461A
Authority: US
Inventors: Richard E Bogema
Original assignee: STURGIS PRODUCTS Co
Current assignee: STURGIS PRODUCTS Co
Priority date: 1945-05-04
Filing date: 1945-05-04
Publication date: 1949-06-28
Anticipated expiration: 1966-06-28
Also published as: FR925267A

Description

Jlm 949. R. E. BOGEMA CLOSURE FASTENEB FOR TUMBLINQ BARRELS Filed May 4, 1945 INVENTOR. Rickard f fioyvma BY I 6 M? jg. i.

A TTORNEY5.

Patented June 28, 1949 CLOSURE FASTENER FOR'TUMBLING ARRELS Richard E. Bogema, Sturgis, Mich., assignor to The Sturgis Products Company, Sturgis Mich,

a corporation of Michigan Application May 4, 1945, Serial No. 591,925

1 Claim. (Cl. 292-241) This invention relates to improvements in closure fastener for tumbling barrels.

The mainobjects of this invention are:

First, to provide a tumbling barrel in which excess or undesired pressures which may be developed within the barrel are relieved without danger of the cylinder exploding, thus eliminating the injury hazard to the operator. Previous relief valves clogged with compound and parts from the tumbling action and were rendered useless.

Second, to provide in a tumbling barrel a door structure which is effective in providing desired closure seal and at the same time will yield to abnormal pressures, providing a relatively wide area. or opening for the escape of gas.

Third, to provide a structure in which the doors or closures are very securely retained and at the same time a door which is relatively light and easily handled in opening and in closing.

Fourth, to provide in a tumbling barrel a closure structure in which the door is securely clamped: when closed, the clamping. means being provided with safety lugs which permit inspection of the contents within the barrel to determine whether it is wedged or piled against the door prior to full releasing ofthe door securing means. Also, to permit the partial releasing of the door so that any pressure within cannot throw the door against the operator.

Fifth, to provide a structure having these advantages which is simple and economical in its parts.

Objects relating to details and economies of the invention will appear from the description to follow. The invention is defined and pointed out in the claims.

A preferred embodiment of the invention is illustrated in the accompanying drawing, in which:

Fig. 1 is a fragmentary side elevation of a tumbling barrel embodying the features of the invention, the door of one compartment being removed and one of the latch members for the door illustrated being disengaged.

Fig. 2 is an enlarged fragmentary View mainly in section on line 2-2 of Figs. 1 and 3.

Fig. 3 is an enlarged fragmentary view mainly in section on line 3-3 of Fig. 1.

Fig. 4 is an enlarged fragmentary view mainly in section on line 4-4 of Fig. 1.

Fig. 5 is an enlarged fragmentary view mainly in section on line 55 of Fig. 1.

Fig. 6 is an inverted view of one of the cam latch members, the handle being omitted.

Fig. '7 is a plan view of one of the latch members, the handle being partially broken away,

shown in.- open position by full lines and in closed position by dotted lines.

Referring to the drawing, the tumbling barrel designated generally by the numeral IV is. of thepolygonal type and is provided with transverse: partitions, one indicated by dotted lines 2 divideing the barrel into compartments. These com-- partments are substantially liquid and gas tight.

The sidewall panel 3 is provided with a: door opening 5 for each compartment. A door 5; is provided for each door opening. The door is a flat panel and is provided with an angle iron reinforcing member 6 spaced from its edges, this reinforcing member constituting, a support for the gasket '5. The gasket is arranged between; the members ii and the gasket retaining strips 8, also secured on the inner side of the door. The gasket is adapted to seat against the outer side of the wall panel and preferably extends inwardly to overlap the edges 9 of the door opening. This gasket is preferably of yielding resilient material;

such as rubber and applicant has found material of a 35- durometer reading as; satisfactory.

The door is removably secured b means ofv the latch members lEI rotatively mounted on the eut-v wardly projecting studs [2 carried by attaching plates l3 secured to the wall panel. The latches have cammed faces l4 adapted to ride over the edges of the door to bring the relatively flat faces [5 of the latches into engagement with the side of the door as shown in Figs. 3 and 4. The latches are provided with handles IS.

The latches are spring stressed and the springs I! are arranged on the studs with their inner ends seated against the latches and their outer ends against the thrust nuts l8 which are threaded upon the studs for adjustment thereon. The sheet metal housings l9 are provided to protect the springs and also to prevent accidental loosening of the nuts.

To facilitate the positioning of the doors a pair of locating rests 2|] are provided for each door, these being preferably arranged at the bottom of the door opening, see Fig. 1. When the latches are disengaged the door is entirely released. In replacing the door the latches are in disengaged position as shown around the second door opening at the right of Fig. 1 and the door is positioned by engaging its lower corners with the angular rests 20, the door swung against the side of the panel and the latches engaged.

The latch members are provided with projecting nose or lug portions 2| at the end of their cam portions, these nose or lug portions being adapted to overhang the door when the latch is swung to a partially released position, as shown in Fig. 5. In releasing the door, the operator swings the latches to the position shown in Fig. 5 which releases the clamping stress on the door, allowing the operator to check the door for safetY-that is, to determine whether or not there is any material wedged or packed against the door and also allowing the escape of any gas pressure that might not be sufiicient to overcome the stress of the latch springs but might be suflicient to impel the door against the operator. The tension of the springs is adjusted so that they will yield to abnormal pressures of gas developed within the chamber and permit the escape thereof around the edges of the opening. Since there is such a wide area for the escape of gases, there is no possibility of any clogging of this venting means. The gasket is preferably arranged to overlap the edge of the door opening as shown in Fig. 5 so that the gas can pass under the same rather than have a wedging action on the gasket.

It will be noted that the door latches are mounted on the barrel rather than on the door. This minimizes the weight of the door and in fact the door may be made of relatively light material, particularly in view of the fact that it is so efiectively clamped and supported. When the latches are fully engaged the lugs or nose portions 2| engage the stop 22 as shown by dotted lines in Fig. 7 and when the latch is fully disengaged the end of the cam portion engages this stop 22 as shown in full lines.

I have illustrated and described my invention in a very practical embodiment thereof. I have not attempted to illustrate or describe other embodiments or adaptations which I contemplate as it is believed this disclosure will enable those skilled in the art to embody or adapt the invention as may be desired.

Having thus described my invention What I claim as new and desire to secure by Letters Patent is:

The combination in a container having an enclosure wall provided with a door opening, of a removable door provided with an inwardly facing 1 4 gasket adapted to seat against the outer side of the enclosure wall at the edges of the door opening, latch studs mounted on the enclosure wall at the edges of the door opening, camming latch members rotatably mounted on said studs to be swung into clamping engagement with the outer side of the door, said latch members being pro- Vided with projecting portions at the front ends of their cam portions which overlie the door and are spaced from the door when it is fully closed and when the latch members are in partially open position, stops on said enclosure wall with which said projecting portions engage when the latch members are fully closed, said stops being adapted to coact with the rear ends of the latche when the latches are in fully open position, and springs on said studs at the outer sides of said latch members acting to ur e them yieldingly inward, said latch members being rotatable about said studs in their latching and unlatching movements and slidable longitudinally of said studs under the action of said springs.

RICHARD E. BOGEMA.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 760,238 Nolan May 17, 1904 828,591 Abbe Aug. 14, 1906 1,311,957 Ferris Aug. 5, 1919 1,411,621 Goddard Apr. 4, 1922 1,664,972 Dudderar Apr. 3, 1928 2,070,499 Treanor Feb. 9, 1937 2,158,076 Lupo, Jr. May 16, 1939 2,264,180 Koehler Nov. 25, 1941 FOREIGN PATENTS Number Country Date 114,415 Austria Oct. 10, 1929 185,481 Great Britain Aug. 31, 1922 439,989 Great Britain Dec. 18, 1935