GB190107705A - Improvements in Jack-screws. - Google Patents

Improvements in Jack-screws.

Info

Publication number
GB190107705A
GB190107705A GB190107705DA GB190107705A GB 190107705 A GB190107705 A GB 190107705A GB 190107705D A GB190107705D A GB 190107705DA GB 190107705 A GB190107705 A GB 190107705A
Authority
GB
United Kingdom
Prior art keywords
stem
head
screw
socket
interposed
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
Robert Bratton Allison
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 GB190107705A publication Critical patent/GB190107705A/en
Expired legal-status Critical Current

Links

Abstract

7705. Allison, R. B. April 15. Lifting-jacks.-The standard A is fitted with a screwed and replaceable bush B secured from rotation. The head of the screw C is socketed to receive the stem of the lifting-head D, between which and the top of the screw balls G are interposed. A ball E is interposed between the bottom of the stem and a hardened plate F with adjustable packing f. The bottom of the stem may be fitted with a convex plate to bear against a similar one at the bottom of the socket. The head may be retained by a set-screw H engaging with an annular groove d<11>. In a modification, the socket is formed in the head and the stem on the screw.
GB190107705D 1901-04-15 1901-04-15 Improvements in Jack-screws. Expired GB190107705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190107705T 1901-04-15

Publications (1)

Publication Number Publication Date
GB190107705A true GB190107705A (en) 1902-02-20

Family

ID=32363622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190107705D Expired GB190107705A (en) 1901-04-15 1901-04-15 Improvements in Jack-screws.

Country Status (1)

Country Link
GB (1) GB190107705A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625369A (en) * 1947-07-03 1953-01-13 Akron Products Company Jack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2625369A (en) * 1947-07-03 1953-01-13 Akron Products Company Jack

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