US668691A - Packing vessel. - Google Patents

Description

PACKING VESSEL..

(no udel) (Application lld Dee. 30, 1899.)

ETE STATES WILLIAM C. RUDD, OF CLEVELAND, OHIO.

PACKING VESSEL.

SPECIFICATION forming part of Letters Patent No. 668,691, dated February 26, 1901- Application tiled December 30, 1899. Serial No. 742,040. (No model.)

To a/ZZ whom it may concern.-

Be it known that I, WILLIAM (J. RUDD, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Packing Vessels, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

The object of the invention is to provide a cheap and simple construction for sealing a packing vessel; and the invention consists in the construction and combination of parts shown in the drawings and hereinafter described and claimed.

In the drawings, Figure lis a side elevation, partly in vertical section, of a construction embodying my invention; and Fig. 2 is a perspective View of one of the spring-clam ps for fastening the cover on the vessel.

Referring to the parts by letters, A represents the vessel, which may be of any desired form and material, but is preferably made of glass. B represents its cover, which is also preferably made of glass, and D D represent the spring-clamps for holding the cover upon the vessel. The vessel is provided near its upper edge with an annular external fiange d, the lower` edge d' of which may be approximately horizontal. The cover B rests upon a rubber gasket C, which in turn rests upon the top of the flange. On the top of this cover and at the edge thereof is a raised bead b, which is beveled from its top both inwardly and outwardly. Preferably this elfect is produced by making this bead of substantially semicircular form in vertical section, as shown. On the cover and a short distance within this bead is the raised annular inclined shoulder b', the purpose of which will be presently described.

The spring-clamps D are preferably made of thin flat spring metal. Each has its lower end bent inward to form the arm d', which may be substantially horizontal.- Its upper end is also bent inward to form the arm d. This arm is substantially of ogee form-that is to say, it has the inwardly and downwardly bent part d2 and the inwardly and upwardly bent part d3, substantially as shown. To apply these clamps after the cover has been placed upon the vessel, the end of the arm d is placed under the lower edge of the iiange a on the vessel and the upper end of said clamp is pushed inward, turning upon this end ofthe arm d as a fulcrum until, shown at the right of Fig. l, the part cl3 of the upper arm CZ strikes the beveled outer face of the bead b. When the clamp is pushed further inward, this arm d is bent upward, because of the inclination of the engaging surface, until it passes over the top of the bead. Then the resilience of the spring metal draws this arm d downward, the part d2 thereof moving in contact with the inclined inner face of the bead b, which causes the upper end of the clamp to be drawn inward until the upturned end (Z3 of the arm d engages with the shoulder b', the arm d being made of proper length to permitthisengagement. Theclamps having reached the position described, which is shown at the left in Fig. l, now act to hold the cover upon the jar. The engagement of the upturnedy end d3 of the clamp with the shoulder b' acts to resist any force tending to cause the disengagement of the lower arm d' from the ange a, because if a force be applied to the lower end of the clamp to swing it outward the clamp must either be bent (which cannot be done easily and will never be done accidentally) or else the clamp must swing as a lever upon a fulcrum formed by the engagement of the part cl2 of the arm d with the inner inclined face of the bead b, and such movement of the clamp as a lever is resisted by the aforesaid engagement of the end d3 of this lever with said shoulder b'. The provision of these shoulders b' and the making of the upper 'arm d of the shape and length to engage with them makes it unuecessary to undercut the flange ot or to make the lower arm of the clamp hook-shaped. It

is not pretended that the described construction will prevent the disengagement of the lower end ofthe clamp and the flange; but it will prevent such disengagement accidentally, and that is the object aimed at, and this result is produced by a cheap and simple construction. y

While .the vessel will present a more attractive appearance if the flange a and the bead b and shoulder by extend around the vessel and cover, respectively, it is only necessary to provide these flanges, beads, and

IOO

shoulders at the points where the clamps are to be applied.

Having described my invention, I claiml. The combination of a Vessel having the external liange a near its upper edge, and the cover having 0n its top and at the edge thereof the rounded bead b which is inclined from its top in both directions, and the inclined raised shoulder ZJ', with spring-clamps each having an inwardly-bent arm d' on its lower end, and the inwardly-bent ogee-shaped arm on its upper end, substantially as described.

2. The combination of a vessel having an annular ange near its brim, a cover having an annular rounded bead above said flange, a rounded depression and a conical face with- `WILLIAM C. RUDD.

Witnesses:

E. L. THURsToN, P. E. KNOWLToN.

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