GB240959A - Improvements in and relating to chains - Google Patents

Improvements in and relating to chains

Info

Publication number
GB240959A
GB240959A GB1821124A GB1821124A GB240959A GB 240959 A GB240959 A GB 240959A GB 1821124 A GB1821124 A GB 1821124A GB 1821124 A GB1821124 A GB 1821124A GB 240959 A GB240959 A GB 240959A
Authority
GB
United Kingdom
Prior art keywords
chain
links
housing
pivoted
engage
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
GB1821124A
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
Priority to GB1821124A priority Critical patent/GB240959A/en
Publication of GB240959A publication Critical patent/GB240959A/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
    • B66F3/02—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions
    • B66F3/06—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

240,959. Biggs, F. July 30, 1924. Jacks.-A device for thrusting or lifting loads comprises a flexible chain guided within a housing 11 provided with a feeding-member, such as a toothed wheel 8 adapted to engage with rollers 15 on the chain links, and pawls 3 pivoted at 13 on the links and so shaped as to engage and fit between the opposing ends 4, 5 of alternate links when these pass around the wheel 8, thereby causing the chain to assume a rigid bar-like character. When the chain is fed back into the housing, the pawls disengage from the links and take up the position shown at the left of Fig. 1. The link plates are shaped as shown in Fig. 4, and are connected together by pins 2. Thin plates 12 are attached to the sides of the chainlinks to form a continuous guiding-surface thereon. The guideway 10 for the rigid chain is pivoted to the housing to allow the chain to follow the movements of the point of attachment 16 to the load.
GB1821124A 1924-07-30 1924-07-30 Improvements in and relating to chains Expired GB240959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1821124A GB240959A (en) 1924-07-30 1924-07-30 Improvements in and relating to chains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1821124A GB240959A (en) 1924-07-30 1924-07-30 Improvements in and relating to chains

Publications (1)

Publication Number Publication Date
GB240959A true GB240959A (en) 1925-10-15

Family

ID=10108550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1821124A Expired GB240959A (en) 1924-07-30 1924-07-30 Improvements in and relating to chains

Country Status (1)

Country Link
GB (1) GB240959A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919252A (en) * 1987-03-05 1990-04-24 Joy Technologies Inc. Chain conveyor for miner
US5072826A (en) * 1987-03-05 1991-12-17 Joy Technologies Inc. Chain conveyor for miner
US10935106B2 (en) 2018-06-14 2021-03-02 Serapid, Inc. Block chain with monolithic links

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919252A (en) * 1987-03-05 1990-04-24 Joy Technologies Inc. Chain conveyor for miner
US5072826A (en) * 1987-03-05 1991-12-17 Joy Technologies Inc. Chain conveyor for miner
US10935106B2 (en) 2018-06-14 2021-03-02 Serapid, Inc. Block chain with monolithic links

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