US1595029A - Crane for lifting, lowering, and transporting loads - Google Patents

Crane for lifting, lowering, and transporting loads Download PDF

Info

Publication number
US1595029A
US1595029A US668720A US66872023A US1595029A US 1595029 A US1595029 A US 1595029A US 668720 A US668720 A US 668720A US 66872023 A US66872023 A US 66872023A US 1595029 A US1595029 A US 1595029A
Authority
US
United States
Prior art keywords
jib
frame
shaft
carriage
crane
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
US668720A
Inventor
Smith Robert Arthur
Meacock Thomas
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
Application granted granted Critical
Publication of US1595029A publication Critical patent/US1595029A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B66C23/36—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks

Definitions

  • the improved crane is thus especially adapted for use in cases where it is required to lower the jib whilst a load is suspended thereon, for example, in order that the crane may be able to pass through a doorway or beneath an arch before depositing its load.
  • the pivotal support of the jib is carried by'a frame mov-' able alon a guideway or track on the car riage, an a guide pin or roller carried by the jib, or an extension thereof, is arranged to travel on a cam path, the paths of the pivot frame and the roller being correlated 111 such a manner that, when the jib is raised to its highest position the frame is near one end or side of the carriage, and in order to lower the jib towards a horizontal position the frame must be moved'rearwardly or towards the opposite side or end of the carriage.
  • the said in or roller may be arranged between the sad of the jib and its pivotal support, or it may be arranged on an extension of the jib projecting forwardly or rearwardly at any desired angle, the cam path for this pin or roller being appropriately situated above or below the guideway or track for the pivot frame.
  • the frame carrying the pivotal support of the jib, and, in some cases, the pin or roller also, may be moved along their respective paths by a nut and screw rack and pinion or like mechanism driven through worm and worm-wheel, bevel or like'gearing. 1 v 4 In the accompanying drawing which 868,720, and in Great Britain October 31, 1822.
  • FIG. 1 is a side view
  • Flgure 2 a plan of an automobile crane constructed
  • Figure 3 is a detail view of partsof the lmproved crane.
  • l As shown in this drawing, 1 is an under carnage carried on road wheels 2 driven through a shaft 3 and steered bya rod 4.
  • t t
  • a carriage 5 1fiounted on a turntable support 6 on the undercarria e 1 carries a suitable motor 7 geared to t e shaft 3 and to' gearmgS by which the carriage 5 may be,
  • the jib when the shaft 10 is at theleft hand end of the racks 12, the jib .will be lowered to the position indicated in broken lines. Whilst the j1b is movin between these two positrons the jib heat? stantially vertical line so that the tiltin movement exerted on the carriage by a loa carried on the jib will remain practically constant since the radius at which it acts is not substantially changed. 1
  • the shaft 10 is mounted in frame part 16 slidable along shafts 17 driven b the motor 7 through the shafts 18" an reversing *clutcheslQ. Worms 2O 'vely rotating with the shafts 17 and sli able thereon are held within the said frame parts, 16.
  • a crane comprising a jib, a frame on which the jib is pivotally supported, an extension of the jib carrying a roller, a guide track for the roller arranged divergently with respect to the path of the said frame, a windin drum carried on the said frame, driving s afts on which the movable frame is slidably mounted, and gearing transmitting motion from the said shafts to the movable frame and winding drum, respectively.
  • a crane comprising a carriage, a jib, a frame on which the jib' is pivotall supported, a roller on the said jib space apart from the said pivotal support of the jib, a guide track for the said roller, a motor on the'carriage, a winding drumcarried on the shafts cared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion from the said shafts to the frame and winding drum, respectively.
  • a crane comprisin a carriage, a jib, a frame on which the jib is pivotally supported, a roller on the said jib, and a ide track for the said roller, arranged iver gently with respect to the track along which the frame is movable, a motor on the carriage, a winding drum carried on the said frame, driving shafts geared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion from the said shafts to the frame and winding drum, respectively.
  • A'crane comprising a carriage, an under carriage, a turntable support on the undercarriage on which the carriage is mounted, a jib, a frame on which the ib is pivotally mounted, a roller on the ji spaced apart from the pivotal support of the said jib, divergent tracks on the carriage along which the frame and roller are respectively mov-- able, a motor on the carriage, a winding drum carried on the said frame, driving shafts geared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion from the said shafts to the frame and winding drum, respectively.
  • a crane comprising a carriage, a jib, a shaft on which the jib is pivotally mounted, racks carried by the said carriage, pinions on the said shaft in mesh with the said racks, means for rotating the shaft,a roller on the jib spaced apart from the pivotal sup port of the jib, a track for the said roller arranged divergently with respect to the said racks, a motor on the carriage, a winding drum rotatably mounted'on the jib shaft, I driving shafts geared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion to the racks and having the said frame slidably mounted thereon, gearing connecting the said shafts, a winding drum rotatably mounted on the jib shaft, a second driving shaft arranged parallel to the racks and having the frame slidably mounted thereon, gearing connecting said second driving shaft to the winding drum, a roller on the jib spaced apart from the
  • a crane comprising a carriage, a jib, a shaft on which the jib is pivotally mounted, racks carried'by the said carriage, pinions on the said shaft in mesh with thesaid racks, a frame in which the said shaft is mounted to rotate, a driving shaft arranged parallel to the said racks and having the frame slidably mounted thereon, a worm carried by the frame and mounted on the said driving shaft to rotate therewith and slidable thereon, a worm wheel fast on the jib-supporting shaft and in gear with the said worm, a winding drum rotatably mounted on the jib-supporting shaft, a second driving shaft arranged parallel to the said racks and having: the frame slidably mounted thereon, a second worm carried by the frame a roller on the jib spaced apart from the pivotal support of the jib, and a track for the said roller arranged divergently with respect to the said racks.
  • a crane comprising a carriage, racks carried by the said carriage, a jib, a shaft on which the jib is pivotally mounted, a frame carrying the said shaft, pinions on-the said shaft in mesh with the racks carried by the carriage, a driving shaft arranged parallel to the said racks and having the frame slidable thereon, a worm carried by the frame and mounted on the said driving shaft to rotate'therewith and slidable thereon, a worm wheel fast on the said jib supporting shaft and in gear with the said worm, a roller on the jib spaced apart from the pivotal support of the jib, and a track for the said roller arranged divergently with respect to the said racks.
  • a crane comprising a carriage, a jib, a winding drum, a shaft on which the jib no i and drum are mounted, a motor on the carriage, a track along which the shaft is movable, a gearing connection between the motor and the shaft to move the said shaft along its track, and a gearing connection between the motor and the winding drum.
  • a crane comprising a carriage, a jib, a winding drum, a shaft supporting the jib and the drum, a. motor on the carriage, pinions on the shaft, racks on which said pinions travel when the shaft is rotated, a gearing connection between the motor and the shaft to rotate the latter, and a second caring connection between the motor an drum to rotate the latter independently of the movement of the shaft when the pinions travel along the racks.
  • the r 12 A crane comprising a carriage, a jib,
  • a winding drum a shaft supporting the 11b and drum, a frame in which the shaft 1s mounted to rotate, pin'ions on the shaft, racks on which said pinions travel when the shaft is rotated, driving shafts on which the frame is slidably mounted, a worm carried by the frame and rotated by one of the driving shafts, a worm wheel fast on the jibrsupporting shaft and in gear with th said worm, a second worm carried by the frame and rotated by another of the driving shafts, and a worm wheel carried by the windmg drum and in ear with the said second worm.

Description

Aug. 3,1926. 1,595,029
R. A. SMITH ET AL cngma FOR LIFTING, LOWERING, AND TRANSPORTING LOADS Filed Oct. 15, 1925 Fjgfi. o
ssa esae ys,iezs. p I p UNITED-STATES PATENT OFFICE.
stars; or LONDON, m moms mcoox, or SOUTKEND-ON-SEA,
nnomn.
CRANE FOB LIFIING, LO'WEBING, AND TRANSPOBI'DTG LOADS.
a lication filed oczbm 15, 1923, Serial. No.
l vWith this type of travelling crane, a load carried by the jib' has a tendency to tilt "of the ib occupies a fixed 7 substantiallyJ the carriage, and in the constructions here-- rovided, since the pivotal support osition, the tilting moment applied to th s carriage progressively increases as the jib is owered about its pivotal support, that is to say, as it approaches a horizontal position. v
tofore This'invention provides an improved 0011-.
struction. of automobile crane in which the radius at which the tilting force acts is kept constant for all o'sitions of 'n a wide angle 0 movement.
the jib wit The improved crane is thus especially adapted for use in cases where it is required to lower the jib whilst a load is suspended thereon, for example, in order that the crane may be able to pass through a doorway or beneath an arch before depositing its load. In order to obtain this result, the pivotal support of the jib is carried by'a frame mov-' able alon a guideway or track on the car riage, an a guide pin or roller carried by the jib, or an extension thereof, is arranged to travel on a cam path, the paths of the pivot frame and the roller being correlated 111 such a manner that, when the jib is raised to its highest position the frame is near one end or side of the carriage, and in order to lower the jib towards a horizontal position the frame must be moved'rearwardly or towards the opposite side or end of the carriage. The said in or roller may be arranged between the sad of the jib and its pivotal support, or it may be arranged on an extension of the jib projecting forwardly or rearwardly at any desired angle, the cam path for this pin or roller being appropriately situated above or below the guideway or track for the pivot frame. The frame carrying the pivotal support of the jib, and, in some cases, the pin or roller also, may be moved along their respective paths by a nut and screw rack and pinion or like mechanism driven through worm and worm-wheel, bevel or like'gearing. 1 v 4 In the accompanying drawing which 868,720, and in Great Britain October 31, 1822.
shows how the said invention may be conveanently and advantageously carried into practice: v
Figure 1 is a side view, and Flgure 2 a plan of an automobile crane constructed In accordance with this invent1on and Figure 3 is a detail view of partsof the lmproved crane. l As shown in this drawing, 1 is an under carnage carried on road wheels 2 driven through a shaft 3 and steered bya rod 4. t
A carriage 5 1fiounted on a turntable support 6 on the undercarria e 1 carries a suitable motor 7 geared to t e shaft 3 and to' gearmgS by which the carriage 5 may be,
rotated on the undercarriage 1. i
' A ]1b .9 1s plvotally mounted on a shaft 10 carrying pimons 11 which are arranged to travel alon inclined racks 12; Extensions 13 of the i 9'carry rollers 14 which travel along cam paths 15 inclined to the racks 12. From a consideration of Figure 1 it will be ap arent that, when the shaft 10 is at the rlght and end of the racks 12, the jib will be supported in the raised position, shown in full lines, by the extensions 13 and rollers 14 bearing against the cam paths 15, and,
when the shaft 10 is at theleft hand end of the racks 12, the jib .will be lowered to the position indicated in broken lines. Whilst the j1b is movin between these two positrons the jib heat? stantially vertical line so that the tiltin movement exerted on the carriage by a loa carried on the jib will remain practically constant since the radius at which it acts is not substantially changed. 1
The shaft 10 is mounted in frame part 16 slidable along shafts 17 driven b the motor 7 through the shafts 18" an reversing *clutcheslQ. Worms 2O 'vely rotating with the shafts 17 and sli able thereon are held within the said frame parts, 16. One
9 will move along a sub-.' Q
'of these worms is in. gear with a. worm are? a carried on the said movable frame, driving shafts on which the movable frameis slidably mounted, and gearing transmitting motion from the said shafts to the movable said frame, drivin frame and winding drum, respectively.
2. A crane comprising a jib, a frame on which the jib is pivotally supported, an extension of the jib carrying a roller, a guide track for the roller arranged divergently with respect to the path of the said frame, a windin drum carried on the said frame, driving s afts on which the movable frame is slidably mounted, and gearing transmitting motion from the said shafts to the movable frame and winding drum, respectively.
3. A crane comprising a carriage, a jib, a frame on which the jib' is pivotall supported, a roller on the said jib space apart from the said pivotal support of the jib, a guide track for the said roller, a motor on the'carriage, a winding drumcarried on the shafts cared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion from the said shafts to the frame and winding drum, respectively.
4. A crane comprisin a carriage, a jib, a frame on which the jib is pivotally supported, a roller on the said jib, and a ide track for the said roller, arranged iver gently with respect to the track along which the frame is movable, a motor on the carriage, a winding drum carried on the said frame, driving shafts geared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion from the said shafts to the frame and winding drum, respectively.
5. A'crane comprising a carriage, an under carriage, a turntable support on the undercarriage on which the carriage is mounted, a jib, a frame on which the ib is pivotally mounted, a roller on the ji spaced apart from the pivotal support of the said jib, divergent tracks on the carriage along which the frame and roller are respectively mov-- able, a motor on the carriage, a winding drum carried on the said frame, driving shafts geared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion from the said shafts to the frame and winding drum, respectively. i v j 6. A crane comprising a carriage, a jib, a shaft on which the jib is pivotally mounted, racks carried by the said carriage, pinions on the said shaft in mesh with the said racks, means for rotating the shaft,a roller on the jib spaced apart from the pivotal sup port of the jib, a track for the said roller arranged divergently with respect to the said racks, a motor on the carriage, a winding drum rotatably mounted'on the jib shaft, I driving shafts geared to the said motor and having the said frame slidably mounted thereon, and gearing transmitting motion to the racks and having the said frame slidably mounted thereon, gearing connecting the said shafts, a winding drum rotatably mounted on the jib shaft, a second driving shaft arranged parallel to the racks and having the frame slidably mounted thereon, gearing connecting said second driving shaft to the winding drum, a roller on the jib spaced apart from the pivotal support of the jib, and a track for the said roller arranged divergently with respectto the said racks. v
8. A crane comprising a carriage, a jib, a shaft on which the jib is pivotally mounted, racks carried'by the said carriage, pinions on the said shaft in mesh with thesaid racks, a frame in which the said shaft is mounted to rotate, a driving shaft arranged parallel to the said racks and having the frame slidably mounted thereon, a worm carried by the frame and mounted on the said driving shaft to rotate therewith and slidable thereon, a worm wheel fast on the jib-supporting shaft and in gear with the said worm, a winding drum rotatably mounted on the jib-supporting shaft, a second driving shaft arranged parallel to the said racks and having: the frame slidably mounted thereon, a second worm carried by the frame a roller on the jib spaced apart from the pivotal support of the jib, and a track for the said roller arranged divergently with respect to the said racks.
9. A crane comprising a carriage, racks carried by the said carriage, a jib, a shaft on which the jib is pivotally mounted, a frame carrying the said shaft, pinions on-the said shaft in mesh with the racks carried by the carriage, a driving shaft arranged parallel to the said racks and having the frame slidable thereon, a worm carried by the frame and mounted on the said driving shaft to rotate'therewith and slidable thereon, a worm wheel fast on the said jib supporting shaft and in gear with the said worm, a roller on the jib spaced apart from the pivotal support of the jib, and a track for the said roller arranged divergently with respect to the said racks.
10. A crane comprising a carriage, a jib, a winding drum, a shaft on which the jib no i and drum are mounted, a motor on the carriage, a track along which the shaft is movable, a gearing connection between the motor and the shaft to move the said shaft along its track, and a gearing connection between the motor and the winding drum.
11. A crane comprising a carriage, a jib, a winding drum, a shaft supporting the jib and the drum, a. motor on the carriage, pinions on the shaft, racks on which said pinions travel when the shaft is rotated, a gearing connection between the motor and the shaft to rotate the latter, and a second caring connection between the motor an drum to rotate the latter independently of the movement of the shaft when the pinions travel along the racks.
the r 12 A crane comprising a carriage, a jib,
a winding drum, a shaft supporting the 11b and drum, a frame in which the shaft 1s mounted to rotate, pin'ions on the shaft, racks on which said pinions travel when the shaft is rotated, driving shafts on which the frame is slidably mounted, a worm carried by the frame and rotated by one of the driving shafts, a worm wheel fast on the jibrsupporting shaft and in gear with th said worm, a second worm carried by the frame and rotated by another of the driving shafts, and a worm wheel carried by the windmg drum and in ear with the said second worm.
ROBERT ARTHUR SMITH.
THOMAS MEACOCK.
US668720A 1922-10-31 1923-10-15 Crane for lifting, lowering, and transporting loads Expired - Lifetime US1595029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1595029X 1922-10-31

Publications (1)

Publication Number Publication Date
US1595029A true US1595029A (en) 1926-08-03

Family

ID=10886532

Family Applications (1)

Application Number Title Priority Date Filing Date
US668720A Expired - Lifetime US1595029A (en) 1922-10-31 1923-10-15 Crane for lifting, lowering, and transporting loads

Country Status (1)

Country Link
US (1) US1595029A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855954A (en) * 1972-09-21 1974-12-24 Int Harvester Co Jib cranes
US4892201A (en) * 1987-07-08 1990-01-09 Veb Schwermaschinenbaukombinat Takraf Jib system for cranes, especially mobile cranes
US9284166B2 (en) 2012-10-01 2016-03-15 Manitowoc Crane Group France Sas Self-propelled work machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855954A (en) * 1972-09-21 1974-12-24 Int Harvester Co Jib cranes
US4892201A (en) * 1987-07-08 1990-01-09 Veb Schwermaschinenbaukombinat Takraf Jib system for cranes, especially mobile cranes
US9284166B2 (en) 2012-10-01 2016-03-15 Manitowoc Crane Group France Sas Self-propelled work machine

Similar Documents

Publication Publication Date Title
US2410373A (en) Revolving crane accessory for fork trucks
US1875103A (en) Truck
US2287469A (en) Industrial truck
US4141591A (en) Bi-directional dump truck
US2365167A (en) Truck crane
US1595029A (en) Crane for lifting, lowering, and transporting loads
US1716732A (en) Motor-propelled crane
US3730103A (en) Convertible rail-highway vehicle
US2752055A (en) Roll gripping means for an industrial truck
US1870906A (en) Wheeled mine crane
US1367907A (en) Hoisting and conveying device
US2993605A (en) Loading and unloading crane
US1161680A (en) Pontoon-crane.
US1843736A (en) Industrial truck
US1272655A (en) Loading and unloading machine.
US1626948A (en) Unloader for railroad cars
US3907140A (en) Lift trucks
US1289786A (en) Loading and unloading mechanism for motor-trucks.
US2202676A (en) Vehicular steering mechanism
US1635338A (en) Loading device for motor trucks
US2063943A (en) Trolley hoist
US1826490A (en) Industrial truck
US1437967A (en) Traveling crane
US1726069A (en) Mtjd-gun cabbiage
US3242813A (en) Hoisting apparatus for use with a mobile gun