GB577389A - Improvements relating to the casting of metals - Google Patents

Improvements relating to the casting of metals

Info

Publication number
GB577389A
GB577389A GB700944A GB700944A GB577389A GB 577389 A GB577389 A GB 577389A GB 700944 A GB700944 A GB 700944A GB 700944 A GB700944 A GB 700944A GB 577389 A GB577389 A GB 577389A
Authority
GB
United Kingdom
Prior art keywords
valves
pipe
valve
bore
leak
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB700944A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BIRMINGHAM ALUMINIUM CASTING
Original Assignee
BIRMINGHAM ALUMINIUM CASTING
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BIRMINGHAM ALUMINIUM CASTING filed Critical BIRMINGHAM ALUMINIUM CASTING
Priority to GB700944A priority Critical patent/GB577389A/en
Publication of GB577389A publication Critical patent/GB577389A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure

Abstract

577,389. Valves. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd., PRITCHARD, B. F., and SHERLOCK, W. N. (Representatives of PRITCHARD, P.), and TINSLEY, L. April 15, 1944, No. 7009. [Class 135] [Also in Group XXII] In casting ingots or other articles by forcing metal 11 into a mould 14 from a pot 10 by admitting compressed air or gas thereto from a pipe 17, one or more finely variable leak valves 18, 19 are arranged on the pipe 17 between the pot and the shut-off valve. The shut-off valve 20 may be similar to the valves 18, 19, but arranged to connect the pipe 17 to the supply pipe 30 and thus give a fine control to the amount of gas supplied. These leak valves may be constructed as shown in Fig. 2, with a plug a having a bore e always open to the entrance c, a lateral bore f which may be brought to align with the exhaust opening d, and a circumferential groove g connected to the bore f and having a progressively diminishing crosssection. The plug is held in its seat by a spring and is adjusted by a handle h, the cover j bearing a scale to show the position of the handle. When a leak valve is used at 20, the openings c, d are connected to the pipes 17, 30 respectively. Specification 516,231, [Group XXII], is referred to.
GB700944A 1944-04-15 1944-04-15 Improvements relating to the casting of metals Expired GB577389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB700944A GB577389A (en) 1944-04-15 1944-04-15 Improvements relating to the casting of metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB700944A GB577389A (en) 1944-04-15 1944-04-15 Improvements relating to the casting of metals

Publications (1)

Publication Number Publication Date
GB577389A true GB577389A (en) 1946-05-16

Family

ID=9824894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB700944A Expired GB577389A (en) 1944-04-15 1944-04-15 Improvements relating to the casting of metals

Country Status (1)

Country Link
GB (1) GB577389A (en)

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