GB1145534A - Torque grip lifting clamp - Google Patents
Torque grip lifting clampInfo
- Publication number
- GB1145534A GB1145534A GB27452/66A GB2745266A GB1145534A GB 1145534 A GB1145534 A GB 1145534A GB 27452/66 A GB27452/66 A GB 27452/66A GB 2745266 A GB2745266 A GB 2745266A GB 1145534 A GB1145534 A GB 1145534A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lifting
- slot
- article
- jaws
- clamp
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/48—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces to vertical edge portions of sheets, tubes, or like thin or thin-walled articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
1,145,534. Lifting devices. J. C. RENFROE & SONS Inc. 20 June, 1966 [23 July, 1965], No.27452/66. Heading B8H. A lifting clamp comprises an inverted U- shaped body 12 providing a slot 13 to receive an article 14 to be lifted and a shackle member 37 pivotally connected to the body to apply a torque gripping action on the article (Fig. 5, not shown) when the shackle member is lifted by means not shown. The body 12 mounts a pair of opposed jaws 21, 22 on opposite sides of the slot 13, the jaw 22 is adjustable relative to the slot by way of a screw thread 27 and is fixed by a clamp 35 prior to lifting. The shackle member pivots in a vertical plane containing the axis of the jaws about an axis horizontally offset from the slot and on a level with the axis of the jaws. The jaws 21, 22 are rotatable in their mountings and one 22 is adjustable by means of screw 27 to grip the article prior to lifting. The shackle member mounts a lifting connection 42 slidable vertically and rotatable relative thereto in a bush 41, which bush abuts a stop 48 on the body 12 when the lifting connection is directly above the slot 13. The lower end of the lifting connection 42 has a head 44 engageable with a pivotable lever 51 whereby on setting down an article the head 44 slides past the lever 51 which then engages the shoulder behind the head to lock the lifting connection vertically above the slot 13 so that on raising the clamp no torque gripping action occurs between the jaws 21, 22 and the clamp may be removed from the article. When an article is to be lifted the lifting connection is lowered and the lever 51 manually withheld from engagement with the head 44 whilst the lifting connection is raised. In an alternative embodiment, Figs. 7, 8 (not shown), the pivot point of the shackle on the body is below the level of the axis of the jaws.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US474403A US3342521A (en) | 1965-07-23 | 1965-07-23 | Torque grip lifting clamp |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1145534A true GB1145534A (en) | 1969-03-19 |
Family
ID=23883378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27452/66A Expired GB1145534A (en) | 1965-07-23 | 1966-06-20 | Torque grip lifting clamp |
Country Status (6)
Country | Link |
---|---|
US (1) | US3342521A (en) |
BE (1) | BE684354A (en) |
DE (1) | DE1295151B (en) |
FR (1) | FR1486901A (en) |
GB (1) | GB1145534A (en) |
NL (1) | NL6610062A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5255950A (en) * | 1991-11-08 | 1993-10-26 | J.C. Renfroe And Sons, Inc. | Clamp with freely rotatable coupling and associated method of rotatably manipulating a structural member |
US8622448B1 (en) | 2013-02-08 | 2014-01-07 | Chevron U.S.A. Inc. | Connection fixture for attaching to a structure to be lifted and a method for use thereof |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2548401A (en) * | 1948-11-12 | 1951-04-10 | Joseph W Sherwood | Clamping device |
US2693386A (en) * | 1954-04-20 | 1954-11-02 | Renfroe & Sons J C | Beam clamp |
US3120046A (en) * | 1961-11-15 | 1964-02-04 | Chicago Bridge & Iron Co | Non-marking clamp |
-
1965
- 1965-07-23 US US474403A patent/US3342521A/en not_active Expired - Lifetime
-
1966
- 1966-06-20 GB GB27452/66A patent/GB1145534A/en not_active Expired
- 1966-07-07 DE DER43646A patent/DE1295151B/en active Pending
- 1966-07-18 FR FR69694A patent/FR1486901A/en not_active Expired
- 1966-07-18 NL NL6610062A patent/NL6610062A/xx unknown
- 1966-07-19 BE BE684354D patent/BE684354A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
US3342521A (en) | 1967-09-19 |
BE684354A (en) | 1967-01-03 |
DE1295151B (en) | 1969-05-14 |
NL6610062A (en) | 1967-01-24 |
FR1486901A (en) | 1967-06-30 |
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