US 4,053,273 AGranted

Apparatus for the manufacture of pressed bodies of depolarizing material for galvanic cells

AssigneeTelephon- und Telegraphen-Fabriks-Aktiengesellschaft Kapsch & Sohne in Wien

InventorsErnst Karobath, Leopold Rippel, Wolfgang Pulitzer, Hans Schmidinger

Life of this patent

Estimating the term…

Loading patent…

Abstract

Apparatus for the manufacture of pressed bodies of depolarizing material for galvanic cells, comprising an elongated mold of uniform cross section having an open end, a pre-mold having an internal volume which is a multiple of the internal volume of said mold, and consisting of a first part and a second part, said first part being elongated and of uniform cross section larger than said cross section of the mold, said second part extending from said first part to an outlet opening and diminishing in cross section from said first part to said outlet opening, said oulet opening being of approximately the same size and shape as said cross section of said mold, a press plunger movable with clearance in said first part of the pre-mold, a first device for refilling said pre-mold prior to each stroke of said press plunger into said first part, a second device for bringing said open end of the mold into alignment with said outlet opening and for moving said open end out of alignment with said outlet opening and thereby shearing material within said apparatus, and means for driving said press plunger, said first device and said second device in synchronism.

Claims12

Dependent claims

An apparatus for the manufacture of a pressed body of depolarizing material for use in a galvanic cell, comprising, in combination:

at least one elongated mold having a substantially uniform cross section and being open at each end;
a pre-mold having a capacity greater than that of said mold and being open at each end, one of the openings of said pre-mold being generally the same size and shape as the openings of said mold;
filling means operable for filling said pre-mold with said depolarizing material;
pressing means operable for cooperating with said pre-mold to compress and discharge the depolarizing material in said pre-mold to said mold and operable for simultaneously cooperating with said mold to press the, deplorizing material therein;
moving means operable to move said mold to align one of its openings with said one opening of said pre-mold and to move said mold after it receives the compressed depolarizing material;
and
shearing means operable to cooperate with said moving means to shear off a portion of the compressed depolarizing material extending above the top of said mold;
said pressing means and said moving means operable for cooperating with each other whereby said mold is moved to a position below said pre-mold, receives the compressed depolarizing material, and is thereafter moved away so that another mold can be moved to the position below said pre-mold.

5 more elements

Dependencies are inferred from the claim text.