GB189728569A - Improvements in Lifting Jacks. - Google Patents

Improvements in Lifting Jacks.

Info

Publication number
GB189728569A
GB189728569A GB189728569DA GB189728569A GB 189728569 A GB189728569 A GB 189728569A GB 189728569D A GB189728569D A GB 189728569DA GB 189728569 A GB189728569 A GB 189728569A
Authority
GB
United Kingdom
Prior art keywords
lifting
rack
lifting jacks
bar
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
Inventor
Charles Henry Slater
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB189728569A publication Critical patent/GB189728569A/en
Expired legal-status Critical Current

Links

Landscapes

  • Load-Engaging Elements For Cranes (AREA)
  • Earth Drilling (AREA)
  • Hydroponics (AREA)

Abstract

28,569. Slater, C. H. Dec. 3. Lifting-jacks.-A rock bar g is mounted in guidestandards b, c. Lifting is effected by means of a lever k, suspended by a link j, a pin m in the end of which engages with the rack g. A spring pawl n retains the bar in its raised position. A pillar s with an adjustable head u is secured by a set-screw t to a foot r<1> connected to the lower end of the rack.
GB189728569D 1897-12-03 1897-12-03 Improvements in Lifting Jacks. Expired GB189728569A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189728569T 1897-12-03

Publications (1)

Publication Number Publication Date
GB189728569A true GB189728569A (en) 1898-10-01

Family

ID=32138353

Family Applications (1)

Application Number Title Priority Date Filing Date
GB189728569D Expired GB189728569A (en) 1897-12-03 1897-12-03 Improvements in Lifting Jacks.

Country Status (1)

Country Link
GB (1) GB189728569A (en)

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