US1417728A - Guy derrick - Google Patents

Guy derrick Download PDF

Info

Publication number
US1417728A
US1417728A US431688A US43168820A US1417728A US 1417728 A US1417728 A US 1417728A US 431688 A US431688 A US 431688A US 43168820 A US43168820 A US 43168820A US 1417728 A US1417728 A US 1417728A
Authority
US
United States
Prior art keywords
cable
boom
mast
drum
derrick
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
Application number
US431688A
Inventor
Gill John Robert
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 US431688A priority Critical patent/US1417728A/en
Application granted granted Critical
Publication of US1417728A publication Critical patent/US1417728A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00Cranes 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
    • B66C23/60Derricks

Definitions

  • GILL a citizen of the United States of America, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful improvements in Guy DblllClZS, of which the following is a specification.
  • My invention relates to an improvement in guy derriclzs or cranes, such as are used for the erection of tall steel structures or wherever the derrick is intended to be used at a considerable elevation above the hoisting engine.
  • the object of this invention is to overcome this dihiculty by providing the derrick with an overhauling sheave or auxiliary drum about which the cable controlling the boom is given a number of turns and thence passes on from the top of the mast to the boom.
  • This drum provides a ready means for overhauling the cable by hand mechanical power or counterweight so as to adapt the boom, as thus relieved of excessive cable load, to fall away quickly.
  • Fig. l is a front elevation of a guy derrick showing the mast partly broken away to illustrate a crank operated overhauling drum about which the boom cable is wound.
  • Fig. 2 is a side view of Fig. 1 showing the overhauling drum equipped with an automatic counterweight attachment.
  • F 3 is a cross sectional view showing the application of my invention to a steel mast and boom.
  • Fig. 1 is a view of Fig. 3 taken on the line iei of Fig. 3.
  • a standard type of wooden guy derrick comprising a swivel support 1, a vertical mast 2, a boom 3 pivotally connected to the mast at 4-.
  • the main hoist cable which passes upwardly from the hoisting engine (not shown) is led through the swivel support 1 and upwardly through the opening 6 in the base of the mast and into a recess or cross cut 7 in the mast where it is given the required number of turns around a sheave or drum 8 and thence passes in any desired manner to the upper sheave wheel 9.
  • the cable is directed outwardly from the mast recess by means of av small sheave wheel 10, though it may pass upwardly in any manner to the sheave wheel 9 according to the present standard practice.
  • the cable thence leads from the sheave wheel 9 to the standard bloclt and tackle rigging 11, which connects the top of the mast with the free end of the boom.
  • a main fall cable 12 also passes upwarly through the mast and between the sheave wheels 13 and 15 on the mast and over sheave wheel 1% on the boom.
  • the auxiliary drum is mounted fast on a shaft 15 which turns in bearings 15 suitably attached to the mast and is adapted to'be operated by any suitable mechanism either hand or power driven. As shown in Fig. 1 the drum shaft is provided with an operating crank 16.
  • Fig. 1 the drum shaft is provided with an operating crank 16.
  • the drum shaft has fast on one end a drum 1'? about which a cable 18 is wound and then passed upwardly over the sheave wheel 19 and connected to a. counterweight 20 which is sufficient to counterbalance the load of the cable 5 between the hoisting engine and the drum 8.
  • a crank 16 also on the drum shaft, as a means which may be used if desired in conjunction with the counterweight to overhaul the weight of the cable.
  • Figs. 3 and 4 I show a steel mast 21 of standard construction and a steel boom 22.
  • the overhauling drum 8 is mounted within the mast on shaft 15 which turns in bearings 23 attached to suitable brackets 24: which are bolted or riveted to the mast.
  • I provide a hand wheel 25 for operating shaft 15.
  • the cable 5 passes upwardly through the center of the inast instead of outside of the mast as in n operation, as the cable 5 is operated by the hoisting mechanism its windings about the overhauling drum 8 will cause the latter to rotate idly with it after the fashion of the sheave.
  • the weight of the boom is not sufficient to counterbalance the Weight of the cable, it is only necessary to grasp the crank 16 or wheel 25 and the able below the drum can be overhauled suiiiciently to permit the boom to swing outwardly until its increasing weight will let it drop automatically.
  • the counterbalancing weight is employed, as in Fig. 2, as the hoisting engine pulls the boom up to its upright position it winds cable 5 on the drum 8 and raises the counterweight.
  • the counterweight acts through the drum to overhaul the cable, thus providing an automatic overhauling mechanism which will function to cause the boom to fall away rapidly under all operating conditions, the counterweight being of the type readily adapted to be varied to counterbal ance the length oi cable below the guy derrick.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Description

J. R. GILL.
GUY DERRICK.
APPLICATION FILED Mats, 1920.
1,417,728. Patented May 30,1922.
2 SHEETSSHEET Fila. l
16 h I l I II n M, u a aw To hois'! d. R. GiH
Erna inc below ATTORNEY RRRRRRRRR K.
APPLICATION FILED DEC. 18, 192(1- UlTElIi JOHN ROBERT GILL, O1 "BIRMINGHAM", ALABAMA,
GUY DERRICK.
Specification of Letters Iatent.
Patented May 30, 1922.
Application filed December 18, 1820. Serial No. 431,688.
To all whom it concern Be it known that 1', JOHN Romain." GILL, a citizen of the United States of America, residing at Birmingham, in the county of Jefferson and State of Alabama, have invented certain new and useful improvements in Guy DblllClZS, of which the following is a specification.
My invention relates to an improvement in guy derriclzs or cranes, such as are used for the erection of tall steel structures or wherever the derrick is intended to be used at a considerable elevation above the hoisting engine.
'lhe guy derriclrs as now in use at a substantial elevation above the hoisting engine are subject to a serious operating difficulty arising from the fact that the boom will not fall freely away from the mast by gravity because of the overbalancing weight of the long cable running down to the hoist engine below, which weight must be lifted by the boom before it can fall away by gravity. it present this di'filoulty is overcome by overhauling or pulling up a sufficient length of cable by hand to enable the boom to substantially overbalanoe the cable, but, as this is done by hand it causes a loss in time and involves much inconvenience and hard work. This same difiiculty has made it necessary in erecting very tall buildings to raise the hoist up nearer to the derrick which is objectionable from many points of view.
The object of this invention is to overcome this dihiculty by providing the derrick with an overhauling sheave or auxiliary drum about which the cable controlling the boom is given a number of turns and thence passes on from the top of the mast to the boom. This drum provides a ready means for overhauling the cable by hand mechanical power or counterweight so as to adapt the boom, as thus relieved of excessive cable load, to fall away quickly.
As illustrative of my invention, reference is made to the accompanying drawings in which I illustrate only the preferred embodiments of my invention without intending thereby to limit myself to the detailed structures shown.
Referring to the drawings Fig. l is a front elevation of a guy derrick showing the mast partly broken away to illustrate a crank operated overhauling drum about which the boom cable is wound.
Fig. 2 is a side view of Fig. 1 showing the overhauling drum equipped with an automatic counterweight attachment.
F 3 is a cross sectional view showing the application of my invention to a steel mast and boom; and
Fig. 1 is a view of Fig. 3 taken on the line iei of Fig. 3.
Similar reference numerals refer to similar parts throughout the drawings.
In the embodiment of my invention illus trated in Fig. 1, I show a standard type of wooden guy derrick comprising a swivel support 1, a vertical mast 2, a boom 3 pivotally connected to the mast at 4-. The main hoist cable which passes upwardly from the hoisting engine (not shown) is led through the swivel support 1 and upwardly through the opening 6 in the base of the mast and into a recess or cross cut 7 in the mast where it is given the required number of turns around a sheave or drum 8 and thence passes in any desired manner to the upper sheave wheel 9. As shown the cable is directed outwardly from the mast recess by means of av small sheave wheel 10, though it may pass upwardly in any manner to the sheave wheel 9 according to the present standard practice. The cable thence leads from the sheave wheel 9 to the standard bloclt and tackle rigging 11, which connects the top of the mast with the free end of the boom. A main fall cable 12 also passes upwarly through the mast and between the sheave wheels 13 and 15 on the mast and over sheave wheel 1% on the boom. The auxiliary drum is mounted fast on a shaft 15 which turns in bearings 15 suitably attached to the mast and is adapted to'be operated by any suitable mechanism either hand or power driven. As shown in Fig. 1 the drum shaft is provided with an operating crank 16. In Fig. 2 the drum shaft has fast on one end a drum 1'? about which a cable 18 is wound and then passed upwardly over the sheave wheel 19 and connected to a. counterweight 20 which is sufficient to counterbalance the load of the cable 5 between the hoisting engine and the drum 8. I show in this view a crank 16 also on the drum shaft, as a means which may be used if desired in conjunction with the counterweight to overhaul the weight of the cable.
In Figs. 3 and 4 I show a steel mast 21 of standard construction and a steel boom 22. The overhauling drum 8 is mounted within the mast on shaft 15 which turns in bearings 23 attached to suitable brackets 24: which are bolted or riveted to the mast. I provide a hand wheel 25 for operating shaft 15. In this arrangement the cable 5 passes upwardly through the center of the inast instead of outside of the mast as in n operation, as the cable 5 is operated by the hoisting mechanism its windings about the overhauling drum 8 will cause the latter to rotate idly with it after the fashion of the sheave. W hen the weight of the boom is not sufficient to counterbalance the Weight of the cable, it is only necessary to grasp the crank 16 or wheel 25 and the able below the drum can be overhauled suiiiciently to permit the boom to swing outwardly until its increasing weight will let it drop automatically. Where the counterbalancing weight is employed, as in Fig. 2, as the hoisting engine pulls the boom up to its upright position it winds cable 5 on the drum 8 and raises the counterweight. As soon as the pull from the hoisting engine on the cable 5 ceases, the counterweight acts through the drum to overhaul the cable, thus providing an automatic overhauling mechanism which will function to cause the boom to fall away rapidly under all operating conditions, the counterweight being of the type readily adapted to be varied to counterbal ance the length oi cable below the guy derrick.
This invention is not intended to be restricted in scope to the specific embodiments shown, but contemplates such modifications as come within the spirit and scope of the claims. 7
' Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is
1. The combination with a guy derrick mounted at an elevation above the hoisting engine controlling it, of a hoist cable leading upwardly to the derrick for controlling the derrick boom, and an auxiliary overhauling drum adjacent to thederrick about which said cable is wound and which is operable to relieve the boom of the counter balancing weight of the cable.
2. The combination with a guy derrick comprising a mast, a boom and a boom con trolling cable, of an auxiliary drum journaled on the mast and having said cable wound about it in its passage to the boom, and means to operate the drum to overhaul the cable.
3. The combination with the mast of a guy derrick and its boom controlling cable, of an auxiliary drum mounted with its periphery projecting substantially into line with the vertical axis of the mast and having said cable wound about it and thence extending upwardly to connect to the derrick boom, and means to operate said drum to overhaul the cable.
-l. The combination with the mast of a guy derrick and its boom controlling cable, of an auxiliary drum journaled on the. mast with its periphery projecting substantially into line with the vertical axis of the mast and having said cable wound about it and thence extending upwardly to connect to the derrick boom, and automatic means to operate said drum to overhaul the cable.
5. The combination with the mast of a guy derrick and its boom controlling cable, of an auxiliary drum mounted on the mast with its periphery projecting substantially into line with the vertical axis of the mast and having said cable wound about it and thence extending upwardly to connect to the derrick boom, and automatically and manually controlled means to turn said drum to overhaul the cable.
6. The combination with the mast boom and boom controlling cable of a guy derrick, of an auxiliary overhauling drum journaled on the mast and having said cable wound about it, and a crank connected to the drum for operating it and overhauling the cable hanging therefrom to free the boom to fall away by gravity.
In testimony whereof I afiiX my signature.
JOHN ROBERT GILL.
lVitness Norma WELSH.
US431688A 1920-12-18 1920-12-18 Guy derrick Expired - Lifetime US1417728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US431688A US1417728A (en) 1920-12-18 1920-12-18 Guy derrick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US431688A US1417728A (en) 1920-12-18 1920-12-18 Guy derrick

Publications (1)

Publication Number Publication Date
US1417728A true US1417728A (en) 1922-05-30

Family

ID=23713015

Family Applications (1)

Application Number Title Priority Date Filing Date
US431688A Expired - Lifetime US1417728A (en) 1920-12-18 1920-12-18 Guy derrick

Country Status (1)

Country Link
US (1) US1417728A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271341B (en) * 1963-07-22 1968-06-27 Talfourd Serge Decuir Mobile crane
US4187949A (en) * 1978-07-10 1980-02-12 Kawasaki Jukogyo Kabushiki Kaisha Derrick crane with wide horizontal swinging range of boom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1271341B (en) * 1963-07-22 1968-06-27 Talfourd Serge Decuir Mobile crane
US4187949A (en) * 1978-07-10 1980-02-12 Kawasaki Jukogyo Kabushiki Kaisha Derrick crane with wide horizontal swinging range of boom

Similar Documents

Publication Publication Date Title
NO842993L (en) MOVABLE CRANE
CN108892060A (en) A kind of crane upper mechanism is from dismantling device, crane and tears method open certainly
US1417728A (en) Guy derrick
NO119096B (en)
CN207483225U (en) A kind of wind-proof tower crane of personnel's emergency escape easy to operation
US1909528A (en) Tractor crane
GB1286829A (en) Self-erecting crane
US1283022A (en) Toy crane or derrick.
US684675A (en) Hoisting apparatus.
US1101190A (en) Hoisting apparatus.
CN210150635U (en) Store up dryer hoist device with stop device
CN203947461U (en) Dynamic compaction machinery is from hooking device and dynamic compaction machinery
US29829A (en) Ships sails
US1868878A (en) Ash hoist and lowering attachment
SU132385A1 (en) Grapple winch
SU9519A1 (en) Electric winch
JPH0124077Y2 (en)
US1471853A (en) Derrick
US168594A (en) Improvement in hoisting-machines
US1376253A (en) Elevator
GB602845A (en) Improvements in cranes or derricks
SU60127A1 (en) Cable crane with grip dl
US414284A (en) Derrick
US318518A (en) Hemax e
SU69354A1 (en) Construction Hoist