GB528932A - Improvements in or relating to lifting jacks - Google Patents

Improvements in or relating to lifting jacks

Info

Publication number
GB528932A
GB528932A GB1471839A GB1471839A GB528932A GB 528932 A GB528932 A GB 528932A GB 1471839 A GB1471839 A GB 1471839A GB 1471839 A GB1471839 A GB 1471839A GB 528932 A GB528932 A GB 528932A
Authority
GB
United Kingdom
Prior art keywords
relating
lifting
lifting jacks
spigot
jacks
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
GB1471839A
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.)
SMITH S JACKING SYSTEMS Ltd
Original Assignee
SMITH S JACKING SYSTEMS Ltd
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 SMITH S JACKING SYSTEMS Ltd filed Critical SMITH S JACKING SYSTEMS Ltd
Priority to GB1471839A priority Critical patent/GB528932A/en
Priority to FR865855D priority patent/FR865855A/en
Publication of GB528932A publication Critical patent/GB528932A/en
Priority to DES17724A priority patent/DE926509C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Types And Forms Of Lifts (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

528,932. Lifting-jacks. SMITH'S JACKING SYSTEMS, Ltd., and SESSIONS, D. W. May 17, 1939. No. 14718. [Class 78 (iii)] A lifting-jack is formed with a rubber foot 31 having radial recesses 33 on the groundengaging surface and a spigot 32 which fits into the end of the tube forming the standard. The spigot is rounded to fit the splayed end of the tube as shown at 34.
GB1471839A 1939-05-17 1939-05-17 Improvements in or relating to lifting jacks Expired GB528932A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1471839A GB528932A (en) 1939-05-17 1939-05-17 Improvements in or relating to lifting jacks
FR865855D FR865855A (en) 1939-05-17 1940-05-17 Telescopic jack
DES17724A DE926509C (en) 1939-05-17 1950-07-18 Screw winch, especially for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1471839A GB528932A (en) 1939-05-17 1939-05-17 Improvements in or relating to lifting jacks

Publications (1)

Publication Number Publication Date
GB528932A true GB528932A (en) 1940-11-11

Family

ID=10046262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1471839A Expired GB528932A (en) 1939-05-17 1939-05-17 Improvements in or relating to lifting jacks

Country Status (2)

Country Link
FR (1) FR865855A (en)
GB (1) GB528932A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543100A (en) * 1948-12-13 1951-02-27 Casper H Engh Screw and nut mechanism
US2571615A (en) * 1948-11-27 1951-10-16 Romeo Samuel Thomas Auto jack
USRE30647E (en) 1975-04-23 1981-06-16 Hydril Company Tubular connection

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2571615A (en) * 1948-11-27 1951-10-16 Romeo Samuel Thomas Auto jack
US2543100A (en) * 1948-12-13 1951-02-27 Casper H Engh Screw and nut mechanism
USRE30647E (en) 1975-04-23 1981-06-16 Hydril Company Tubular connection

Also Published As

Publication number Publication date
FR865855A (en) 1941-06-06

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