GB836927A - Improvements in or relating to screw presses - Google Patents

Improvements in or relating to screw presses

Info

Publication number
GB836927A
GB836927A GB2099657A GB2099657A GB836927A GB 836927 A GB836927 A GB 836927A GB 2099657 A GB2099657 A GB 2099657A GB 2099657 A GB2099657 A GB 2099657A GB 836927 A GB836927 A GB 836927A
Authority
GB
United Kingdom
Prior art keywords
screw spindle
pinion
platform
rotation
screw
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
GB2099657A
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.)
DENIS IVAN LANGFORD
Original Assignee
DENIS IVAN LANGFORD
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 DENIS IVAN LANGFORD filed Critical DENIS IVAN LANGFORD
Priority to GB2099657A priority Critical patent/GB836927A/en
Publication of GB836927A publication Critical patent/GB836927A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/18—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means
    • B30B1/23—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by screw means operated by fluid-pressure means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

836,927. Screw presses. LANGFORD, D. I. June 16, 1958 [July 3, 1957 ; Nov. 6, 1957], Nos. 20996/57 and 34572/57. Class 87(2). Driving means for a press of the type ineluding a ram mounted on a screw spindle 2 threaded through a frame head 1 and carrying a flywheel or bob-weights 7, 8 comprises a platform 11 secured against rotation with respect to the frame head, a pinion coupled for rotation with the screw spindle, and a rack 17 meshed with the pinion and movable in at least one direction of reciprocation by shifting means acting between it and the platform 11. In the example illustrated in Fig. 1, the pinion is bored so as to be a sliding fit on the screw spindle and is rotated by the rack 17 being reciprocated by piston 23 in cylinder 22 to which compressed air is admitted through a reversing valve 25 and either of conduits 26, 27. Two key ways are cut longitudinally in the screw spindle and these house keys 9 secured to the pinion. In another example, Figs 4, 5 (not shown), the pinion is keyed to the screw spindle, thus forcing the platform down against the action of a pair of springs when it rotates in one direction, the platform being lifted by these springs when the direction of rotation of the screw spindle is reversed.
GB2099657A 1957-07-03 1957-07-03 Improvements in or relating to screw presses Expired GB836927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2099657A GB836927A (en) 1957-07-03 1957-07-03 Improvements in or relating to screw presses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2099657A GB836927A (en) 1957-07-03 1957-07-03 Improvements in or relating to screw presses

Publications (1)

Publication Number Publication Date
GB836927A true GB836927A (en) 1960-06-09

Family

ID=10155400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2099657A Expired GB836927A (en) 1957-07-03 1957-07-03 Improvements in or relating to screw presses

Country Status (1)

Country Link
GB (1) GB836927A (en)

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