US511475A

US511475A - Alexander max tippner

Info

Publication number: US511475A
Authority: US
Publication date: 1893-12-26
Anticipated expiration: 1910-12-26

Description

R E N P P I T M A a d 0 M 0 m FASTENING FOR THE COVERS 0P IGE GISIERNS, No. 511,475.

Pa tentdflDed. 26, 1893.

Inn/anti:

Wb'i'nnsem UNITE J STAT-ES PATENT OFFICE.

ALEXANDER MAX TIPPNER, OF DRES DEN, GERMANY.

FASTENING FOR THE COVERS OF ICE-CISTERNS.

SPECIFICATION forming part of Letters Patent No. 511,475, dated December 26, 1893. Application filed February 20, 1893- serial No. 462,978- (No model.) Patented in Germany June 2, 1892, No. 66,553-

T ctZZ whom it may-concern Be it known that LALEXANDER MAX TIPP- "NER,a subject of the King of Saxony, German,

Empire, and a resident of Dresden, in the Kingdom of Saxony, German Empire, have invented a certain new and useful Fastening for the Covers of Ice-Cisterns, of which the following is a specification, a patent for the same having been granted to me in Germany on the 2.6. day of June, 1892, numbered and designated as follows: D. R. P., 66,553, Kl. 34.

In order that ice may be fully utilized for cooling purposes it is imperative that it be kept from contact with the outside air; or at least such contact should be reduced to the lowest possible minimum if the efiect required is not to be lost altogether. The fastenings usually employed in cistern covers are defective in this respect, since they onlyrestrictthe volume of the air current but do not prevent its coming in contact with the ice.

The object ofthe present invention is to provide a fastening which will be at once easy of handling and eifect a hermetic closing of the cover.

Referring to the drawings which accompany the specification to aid the description, Figure 1 is a plan view of the lock cover. Fig. 2 is a longitudinal section of the fastening, taken on the line wa: of Fig. 1. Fig. 3 is a cross section of same, on the liney-y of Fig. 1.

The cistern may be made of any suitable material preferably of sheet iron. The top b of the cistern has an opening for receiving the ice which is closed by a cover a, as shown, the edges of the opening and the cover each fitting on each other, while the opening in the top of the cistern is quite snugly filled by the downward projecting part of the cover a, as shown in Fig. 2. A cross piece or beam 0 which projects at right angles over the cover- 0. turns on a bolt 0 in a horizontal plane and grips in one ofits ends. Said bolt 0, is fastened on the upper surface of the ice cistern near the feed opening, a cramp at being also fastened near same, but on the opposite side, and in which the end of the lever c'catches,

when the same enters in the closing position. A spiral spring e is fitted in a socket bored outfor the purpose in the middle of the cover a. Over this lies a bow-formed rail f, which is raised high enough by the spring 6, when the cover is free, to project sufiiciently in the center above the surface of the cover to serve 5 5 for a handle. The bow-form of this rail f forms the course for the beam c when same is reciprocated over the cover on opening or closing the latter. The moment the beam 0 comes in contact with the rail f, the latter is pressed down, thus gradually compressing the springe; said spring then presses the cover a down upon the feed opening. Packing h, such as india rubber or the like is placed between the'closing surfaces. 7

' I am aware that compressing and retaining devices have already been made with bodies having arched or convex tops, also with lids having an arched top, and that spring fastenings for the same are not new; finally I am aware that abridge of spring steel is already used to exert sufficient pressure to hold the parts of a coverin place, when engaged. For these reasons I do not claim these devices separately or broadly in combination, but

What I do claim, and desire to secure by Letters Patent, is

1. In fastenings for covers of ice receptacles, a cross piece or beam turning on a fixed bolt as a pivot, a' rail adapted to be compressed thereby, a spring upholding saidrail, and'a'cramp adapted to catch and hold down the beam upon said rail, when the beam is extended over the cover, substantially as de scribed. g

' 2. The combination in ice receptacles, of the top b, coverctadapted to fit therein and closethe opening therein, arm 0 pivoted on said top,cramp d fixed on said top b and adapted to receive said arm cwhen in one position, 0 spring 6 fixed on said cover, and supporting the course f which is adapted to press upward.

against said pivoted arm 0 and thereby hold the cover a tightly in place, substantially as described. 7

3. The combination in ice receptacles, of a c a r 511,475

perforated top, a packing ring adjacent to the said arm is engaged by said cramp, substanperforation, a cover for the perforation and tially as described. I0 provided with a flange adapted to bear on said In witness whereof I hereunto set my hand packing ring, an arm pivoted on the cover and in presence of two Witnesses.

5 adapted to pass under a cramp which is fixed ALEXANDER MAX TIPPNER.

on the top of the receptacle, a spring arranged \Vitnesses: on the aforesaid top and carrying an elastic OSKAR ZODUR,

course on which the aforesaid arm hears when HERNANDO DE SOTO.