US1438292A - Portable farm crane - Google Patents
Portable farm crane Download PDFInfo
- Publication number
- US1438292A US1438292A US469732A US46973221A US1438292A US 1438292 A US1438292 A US 1438292A US 469732 A US469732 A US 469732A US 46973221 A US46973221 A US 46973221A US 1438292 A US1438292 A US 1438292A
- Authority
- US
- United States
- Prior art keywords
- jib
- crane
- portable
- standard
- hawser
- 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
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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
- B66C23/36—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 mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/48—Manually-movable jib cranes for use in workshops
Definitions
- Patented Tier. 12, 1922 meant we aw ti 5r DANIEL maven, or PEMBBEY, warmths.
- T0 aZZ w ham it may concern Be it known that T, DANIEL Bevan, a subject of the King of (irreat England and Ireland, residing at Salt Rock Farm, Pieriy, in the county of Carmarthen, Wales, have invented new and useful Improvements Relating to Portable Farm Cranes (for which 1 filed an application for patent in Great Britain May 10th, 1920), of which the following is a specification.
- This invention relates to a portable crane for use more particularly on farms and like establishments, where loose materials such as hay, timber or manure have constantly to be loaded, unloaded or dumped in large quantities and at different places. In such circumstances it is exceedingly convenient to have some portable apparatus by which this can be effected without power other than horse power or in some cases, manual power.
- my portable crane comprises a balanced jib which is adjustable in length and inclination to the horizontal and which is rotatably mounted on a vertical stand carried by awheeled platform.
- the jib has pulleys at its upper and lower ends over which the lifting hawser, which is intended to be operated by a horse, passes.
- Various lifting and grabbing devices may be attached to the hawser.
- FIG. 1 is side elevation and Fig. 2 a corresponding plan of the portable crane.
- the jib is constructed in two parts 1 and 2, the upper part 1 sliding in guides in the lower part 2 and being capable' of adjustment in relation thereto by means of toothed pinions 3 carried in brackets on the part 2 and engaging racks L on the part 1.
- the pin ons 3 are operated by means of a handle 5 and a pawl (not shown) may be provided in a well-known manner to prevent the part 1 from running back when in a raised position.
- the part 1 may be strengthened by stays or chains 6 connected at one end to the part 1 and at the other to a standard 7.
- the lower part 2 of the jib is pivotally mounted at 8 on a vertical standard 9 which can rotate in a bearing 10 at its base and is stayed in position by suitable struts 11 conneeted at their upper ends to a collar 12.
- the lower ends of the struts are attached to the framework of a stout wheeled support 13 on which is also mounted the bearing 10.
- a peg 17 can be passed to hold the jib in posi tion. It will thus be seen that the jib can, be adjusted as regards length, is capable of rotation around a vertical axis and can also be adjusted as regards its inclination.
- the jib isprovided at its upper and lower ends with pulleys 18 over or under which the lifting hawser 19 passes and fairleads may be provided at suitable points for guiding the hawser in its movement.
- a braking device 20 may be mounted consisting of a block screwed down on to the hawser by a handwheel or in any other suitable manner.
- a balancing box 21 is also provided at Y the lower end of the jib to be filled with sand or other material as required by the adjustment of the upper part 1.
- the front part of the wheeled framework 13 is mounted on a bogie which is provided with a drawbar 22 in the usual manner. I
- the crane is intended to be operated by a horse attached to the hawser 19 at the right-hand side of Fig. 1 and in. order to provide a resistance to the whole structure moving when the hawser is pulled, I provide sprags 23 pivoted at each side of the framework 13 and operated by a lever 24,-. These sprags have forkedor spiked surfaces 25 at their lower ends and are intended to be forced into the ground before hauling on the hawser 19 so as to ofier'vresistance to the movement of the structure 13.
- a portable farm crane comprising, a wheeled platform, a vertical standard carried thereby and rotatable in a horizontal plane, a lower j'b member pivoted to said standard and adapted to rotate therewith and to swing in a vertical plane, an upper jib member slidably mounted in said first member, means for sliding said upper jib member, links rigidly connecting the lower jib member with the aforesa d standard, upper and lower guide pulleys carried by said jib members, and a liftinghawser passing over the upper and under the lower pulley, whereby thepulling strain on the jib will be transmitted direct to the standard and any resulting movement of the jib prevented.
- a portable farm crane comprising, a
- a jib pivoted to said standard and adapted to rotate therewith and to swing in a vertical plane, connections between said jib and said standard whereby vertical movement of said jib relatively to said standard, may be prevented, upper and lower guide pulleys carried by said jib, and a lifting hawser passing over the upper pulley and under the 10 lower, whereby the pulling strain on thejib will be transmitted direct to the standard and any resulting movement of the jib prevented.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Description
0. BEVAN. PORTABLE FARM CRANE. APPLICATION FILED MAY 14 1921.
Patented Dec'. 12, 1922.
Patented Tier. 12, 1922 meant we aw ti 5r DANIEL maven, or PEMBBEY, wanns.
PORTABLE FARM CRANE.
application filed May 14,
T0 aZZ w ham it may concern Be it known that T, DANIEL Bevan, a subject of the King of (irreat Britain and Ireland, residing at Salt Rock Farm, Pembrey, in the county of Carmarthen, Wales, have invented new and useful Improvements Relating to Portable Farm Cranes (for which 1 filed an application for patent in Great Britain May 10th, 1920), of which the following is a specification.
This invention relates to a portable crane for use more particularly on farms and like establishments, where loose materials such as hay, timber or manure have constantly to be loaded, unloaded or dumped in large quantities and at different places. In such circumstances it is exceedingly convenient to have some portable apparatus by which this can be effected without power other than horse power or in some cases, manual power.
According to the invention my portable crane comprises a balanced jib which is adjustable in length and inclination to the horizontal and which is rotatably mounted on a vertical stand carried by awheeled platform. The jib has pulleys at its upper and lower ends over which the lifting hawser, which is intended to be operated by a horse, passes. Various lifting and grabbing devices may be attached to the hawser.
The accompanying drawings illustrate the invention Fig. 1 is side elevation and Fig. 2 a corresponding plan of the portable crane.
Referring to F3 gs. 1 and 2 of the drawings the jib is constructed in two parts 1 and 2, the upper part 1 sliding in guides in the lower part 2 and being capable' of adjustment in relation thereto by means of toothed pinions 3 carried in brackets on the part 2 and engaging racks L on the part 1. The pin ons 3 are operated by means of a handle 5 and a pawl (not shown) may be provided in a well-known manner to prevent the part 1 from running back when in a raised position. The part 1 may be strengthened by stays or chains 6 connected at one end to the part 1 and at the other to a standard 7.
The lower part 2 of the jib is pivotally mounted at 8 on a vertical standard 9 which can rotate in a bearing 10 at its base and is stayed in position by suitable struts 11 conneeted at their upper ends to a collar 12. The lower ends of the struts are attached to the framework of a stout wheeled support 13 on which is also mounted the bearing 10.
1921. s-s1 wanna;
through a hole in the vertical standard 9 a peg 17 can be passed to hold the jib in posi tion. It will thus be seen that the jib can, be adjusted as regards length, is capable of rotation around a vertical axis and can also be adjusted as regards its inclination.
The jib isprovided at its upper and lower ends with pulleys 18 over or under which the lifting hawser 19 passes and fairleads may be provided at suitable points for guiding the hawser in its movement. At the lower end of the part 2 of the jib a braking device 20 may be mounted consisting of a block screwed down on to the hawser by a handwheel or in any other suitable manner. A balancing box 21 is also provided at Y the lower end of the jib to be filled with sand or other material as required by the adjustment of the upper part 1. The front part of the wheeled framework 13 is mounted on a bogie which is provided with a drawbar 22 in the usual manner. I
The crane is intended to be operated by a horse attached to the hawser 19 at the right-hand side of Fig. 1 and in. order to provide a resistance to the whole structure moving when the hawser is pulled, I provide sprags 23 pivoted at each side of the framework 13 and operated by a lever 24,-. These sprags have forkedor spiked surfaces 25 at their lower ends and are intended to be forced into the ground before hauling on the hawser 19 so as to ofier'vresistance to the movement of the structure 13.
I claim 1. A portable farm crane comprising, a wheeled platform, a vertical standard carried thereby and rotatable in a horizontal plane, a lower j'b member pivoted to said standard and adapted to rotate therewith and to swing in a vertical plane, an upper jib member slidably mounted in said first member, means for sliding said upper jib member, links rigidly connecting the lower jib member with the aforesa d standard, upper and lower guide pulleys carried by said jib members, and a liftinghawser passing over the upper and under the lower pulley, whereby thepulling strain on the jib will be transmitted direct to the standard and any resulting movement of the jib prevented.
2. A portable farm crane comprising, a
wheeled platform, a vertical standard carried thereby and rotatable in a horizontal plane,
a jib pivoted to said standard and adapted to rotate therewith and to swing in a vertical plane, connections between said jib and said standard whereby vertical movement of said jib relatively to said standard, may be prevented, upper and lower guide pulleys carried by said jib, and a lifting hawser passing over the upper pulley and under the 10 lower, whereby the pulling strain on thejib will be transmitted direct to the standard and any resulting movement of the jib prevented.
DANIEL BEVAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US469732A US1438292A (en) | 1921-05-14 | 1921-05-14 | Portable farm crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US469732A US1438292A (en) | 1921-05-14 | 1921-05-14 | Portable farm crane |
Publications (1)
Publication Number | Publication Date |
---|---|
US1438292A true US1438292A (en) | 1922-12-12 |
Family
ID=23864869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US469732A Expired - Lifetime US1438292A (en) | 1921-05-14 | 1921-05-14 | Portable farm crane |
Country Status (1)
Country | Link |
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US (1) | US1438292A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417031A (en) * | 1945-05-31 | 1947-03-04 | Arthur E Witherell | Tractor boom |
US2461433A (en) * | 1945-10-01 | 1949-02-08 | George B Moulton | Telescoping tractor boom |
US20140083966A1 (en) * | 2011-03-30 | 2014-03-27 | Melchor Gabilondo, S.A. | Lifting apparatus with a mechanical locking system |
DE102013101235A1 (en) * | 2013-02-07 | 2014-08-07 | Andreas Fait | Device for lifting, lowering and moving loads, has transport base and manipulation unit mounted on transport base, to which beam-like carrier is connected in use state, by which person and load are directed to site of operation |
-
1921
- 1921-05-14 US US469732A patent/US1438292A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417031A (en) * | 1945-05-31 | 1947-03-04 | Arthur E Witherell | Tractor boom |
US2461433A (en) * | 1945-10-01 | 1949-02-08 | George B Moulton | Telescoping tractor boom |
US20140083966A1 (en) * | 2011-03-30 | 2014-03-27 | Melchor Gabilondo, S.A. | Lifting apparatus with a mechanical locking system |
DE102013101235A1 (en) * | 2013-02-07 | 2014-08-07 | Andreas Fait | Device for lifting, lowering and moving loads, has transport base and manipulation unit mounted on transport base, to which beam-like carrier is connected in use state, by which person and load are directed to site of operation |
DE102013101235B4 (en) * | 2013-02-07 | 2016-12-15 | Andreas Fait | Device for lifting and moving loads |
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