US1625118A - Lineman's lifting and hoisting device - Google Patents
Lineman's lifting and hoisting device Download PDFInfo
- Publication number
- US1625118A US1625118A US138891A US13889126A US1625118A US 1625118 A US1625118 A US 1625118A US 138891 A US138891 A US 138891A US 13889126 A US13889126 A US 13889126A US 1625118 A US1625118 A US 1625118A
- Authority
- US
- United States
- Prior art keywords
- lever
- lifting
- hoisting device
- pole
- lineman
- 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 - Lifetime
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/20—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures
- B66C23/203—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes with supporting couples provided by walls of buildings or like structures with supporting couples provided by posts, e.g. scaffolding, trees or masts
Definitions
- This invention relates to a lifting and hoisting device for linemen and others concerned with the mounting of heavy objects on poles, as for instance the installing of transformers on the poles which support electric conductors.
- Its object is to provide a handy, portable apparatus which a lineman can take with him without impediment and so obviate the necessity for the use of cumbersome lifting tackle.
- Fig. 1 is a general elevation of the device showing the disposition of the salient parts in their Working position
- Fig. 2 is a side elevation of the bifurcated clamp for carrying the lever
- Fig. 3 a plan view of same, both being to an enlarged scale as compared with the view in Fig. 1.
- the top end of the line pole 1 carries a substantial clamp 2 which is formed in halves and bifurcated at 8 to receive the lever 4 which may conveniently consist of a standard hard-wood cross-bar. This latter pivots at the fulcrum 5 and carries at its longer end 6 a haulage rope attachment, and also at 7 eyes for the guy ropes 8 and 9,
- the anchor-spike 15 functions to prevent any tilting effect on the clamping ring 2 when the load comes on the fulcrum 5. It is secured at a suitable angle as shown and tends to pierce the wood, thus preventing any appreciable angular movement of the clamp about the pivot 5.
- a clamping member adapted to encircle a post, said member having a radial projection, said projection being forked at its extremity, said fork being spanned by a fulcrum pin, a lever of the first order pivoted on said pin, a hauling cable attached to one extremity of said lever, and a block and tackle attached to the other.
- a clamping member adapted to encircle a post, said member being in two similar semicircular parts bolted together at two diametral and lateral extensions of said semicircular parts, said member having a radial extension formed by the prolongation of said lateral extensions, said radial extension being forked, said fork being spanned by a fulcrum pin, a lever of the first order pivoted on said pin, a block and tackle secured to the shorter end of said lever, a hauling rope attached to the longer end of said lever, guy ropes attached to said lever on each side thereof, all substantially as described and shown.
- a linemans lifting and hoisting device for pole service comprising, a clampingring adapted to encircle a pole, said ring being formed in halves with lateral diametral extensions for bolting together, one pair of said lateral extensions being prolonged and forming an extension radial to said pole, said radial extension being bifurcated at its extremity, the said bifurcation being spanned by a fulcrum pin, an anchor-spike angularly disposed to said pole and secured to said lateral extension of clamping-ring on side of said pole opposite to said fulcrum and adapted to pierce the said pole by the action of a downward strain on said fulcrum, a lever of the first order fulcrumed upon said pin, a haulage rope attached to the longer end of said lever, and a block and tackle attached to the shorter end of said lever, all substantially as described and shown. 10
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Electric Cable Installation (AREA)
Description
i] 19 127. Apr v s. P. GRANT LINE-imN'S LIFTING AND HOISTING DEVICE Filed Oct. 1, 1926 Simon Pfimn If.
jrwenior.
lilting.
Patented A}... 19, 1927.
warren sra'ras SIMON 1?. GRANT, OF NEW WESTMINSTER, BRITISH COLUMBIA, CANADA.
LINEMANS LIFTING AND HOISTING DEVICE.
Application filed October 1, 1926. Serial No. 138,891.
This invention relates to a lifting and hoisting device for linemen and others concerned with the mounting of heavy objects on poles, as for instance the installing of transformers on the poles which support electric conductors.
Its object is to provide a handy, portable apparatus which a lineman can take with him without impediment and so obviate the necessity for the use of cumbersome lifting tackle.
The raising of a heavy transformer near to the top of a high pole and the subsequent maneuvering of the same into correct position frequently requires the use of devices of no inconsiderable weight and bulk, and my device is designed to eliminate this disadvantage thus saving delay, cost and trouble.
I eifect these results by the adoption of a pivotal lever of the first order, carried by a fulcrum which is clamped to the pole at or near its upper extremity. At one end of the lever is secured a block and tackle in connection with the load to be raised; at the other end is a hauling cable. The position of the latter attachment afiords a leverage of say two to one on the load. Guy-ropes on each side attached, say mid-way of the fulcrum and the haulage cable complete the elements of the device.
In the drawings herewith, which form part of this application, Fig. 1 is a general elevation of the device showing the disposition of the salient parts in their Working position; Fig. 2 is a side elevation of the bifurcated clamp for carrying the lever; and Fig. 3, a plan view of same, both being to an enlarged scale as compared with the view in Fig. 1.
The top end of the line pole 1 carries a substantial clamp 2 which is formed in halves and bifurcated at 8 to receive the lever 4 which may conveniently consist of a standard hard-wood cross-bar. This latter pivots at the fulcrum 5 and carries at its longer end 6 a haulage rope attachment, and also at 7 eyes for the guy ropes 8 and 9,
"with a link at 10 for the block and tackle 11.
Part of a suspended transformer is shown at 12, which when the haulage rope 13 is slackened, assumes a vertical position below the dotted lines 14 of the lever 4, and can then be swung towards or slightly around the pole 1, the guy ropes being utilized for steadyino' effect should this be necessary.
The anchor-spike 15 functions to prevent any tilting effect on the clamping ring 2 when the load comes on the fulcrum 5. It is secured at a suitable angle as shown and tends to pierce the wood, thus preventing any appreciable angular movement of the clamp about the pivot 5.
I Having now particularly described my invention, what I desire to be protected in by Letters Patent is:-
1. In a linemans pole hoisting device of the character described the combination comprising, a clamping member adapted to encircle a post, said member having a radial projection, said projection being forked at its extremity, said fork being spanned by a fulcrum pin, a lever of the first order pivoted on said pin, a hauling cable attached to one extremity of said lever, and a block and tackle attached to the other.
2. in a linemans hoisting device for a pole, the combination comprising, a clamping member adapted to encircle a post, said member being in two similar semicircular parts bolted together at two diametral and lateral extensions of said semicircular parts, said member having a radial extension formed by the prolongation of said lateral extensions, said radial extension being forked, said fork being spanned by a fulcrum pin, a lever of the first order pivoted on said pin, a block and tackle secured to the shorter end of said lever, a hauling rope attached to the longer end of said lever, guy ropes attached to said lever on each side thereof, all substantially as described and shown.
3. A linemans lifting and hoisting device for pole service, comprising, a clampingring adapted to encircle a pole, said ring being formed in halves with lateral diametral extensions for bolting together, one pair of said lateral extensions being prolonged and forming an extension radial to said pole, said radial extension being bifurcated at its extremity, the said bifurcation being spanned by a fulcrum pin, an anchor-spike angularly disposed to said pole and secured to said lateral extension of clamping-ring on side of said pole opposite to said fulcrum and adapted to pierce the said pole by the action of a downward strain on said fulcrum, a lever of the first order fulcrumed upon said pin, a haulage rope attached to the longer end of said lever, and a block and tackle attached to the shorter end of said lever, all substantially as described and shown. 10
In testimony whereof I alfix my signature.
SIMON P. GRANT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US138891A US1625118A (en) | 1926-10-01 | 1926-10-01 | Lineman's lifting and hoisting device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US138891A US1625118A (en) | 1926-10-01 | 1926-10-01 | Lineman's lifting and hoisting device |
Publications (1)
Publication Number | Publication Date |
---|---|
US1625118A true US1625118A (en) | 1927-04-19 |
Family
ID=22484121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US138891A Expired - Lifetime US1625118A (en) | 1926-10-01 | 1926-10-01 | Lineman's lifting and hoisting device |
Country Status (1)
Country | Link |
---|---|
US (1) | US1625118A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7845121B2 (en) * | 2004-07-07 | 2010-12-07 | Aloys Wobben | Facility used for the production and/or assembly of goods |
-
1926
- 1926-10-01 US US138891A patent/US1625118A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7845121B2 (en) * | 2004-07-07 | 2010-12-07 | Aloys Wobben | Facility used for the production and/or assembly of goods |
US20110067326A1 (en) * | 2004-07-07 | 2011-03-24 | Aloys Wobben | Facility used for the production and/or assembly of goods |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10899586B2 (en) | Crane position indicator | |
US4466506A (en) | Wire lift device for high tension electric line | |
US3978989A (en) | Extensible and collapsible portable derrick | |
US2705603A (en) | Antenna pole clamp | |
US2846259A (en) | Manhole cover lifter | |
US3043394A (en) | Boom attachments | |
US2833423A (en) | Hoisting device | |
GB1031318A (en) | Improvements relating to cranes | |
US4684031A (en) | Material hoisting gin | |
US1256688A (en) | Portable hoisting-crane. | |
US1625118A (en) | Lineman's lifting and hoisting device | |
US2252514A (en) | Hoist | |
GB1215720A (en) | Improvements in or relating to folding tower cranes | |
US1751794A (en) | Extension boom for derricks | |
US3871528A (en) | Load control apparatus for cranes | |
US3945502A (en) | Cable lifting device | |
US2826392A (en) | Post pulling device | |
US2015957A (en) | Safety device for the prevention of overloading cranes and the like | |
US2786709A (en) | Log handling tongs | |
US3967735A (en) | Cranes with look independent of sheave block | |
US1955259A (en) | Pole-type portable transformer hoist | |
US2725991A (en) | Devices for setting up telephone and the like poles | |
US2571246A (en) | Operating pole assembly for high-tension lines | |
US2358577A (en) | Device for lifting weights | |
US2502815A (en) | Pole top gin and auxiliary crossarm |