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US3237920A - Friction grip rope puller - Google Patents

Friction grip rope puller Download PDF

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Publication number
US3237920A
US3237920A US338395A US33839564A US3237920A US 3237920 A US3237920 A US 3237920A US 338395 A US338395 A US 338395A US 33839564 A US33839564 A US 33839564A US 3237920 A US3237920 A US 3237920A
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US
United States
Prior art keywords
handle
casing
rope
shaft
grip
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
US338395A
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English (en)
Inventor
Hans O Dohmeier
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
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Filing date
Publication date
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Application granted granted Critical
Publication of US3237920A publication Critical patent/US3237920A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/02—Manually-operated, e.g. lever-actuated, devices operating on ropes, cables, or chains for hauling in a mainly horizontal direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply

Definitions

  • This invention relates to improvements in a Well known machine having a rope passing through it and a projecting handle which, by reciprocation, promotes the passage of said rope for it either to lift or haul.
  • This well known rope puller has the rope passing through two sets of grips which grip the rope frictionally and move it step by step through the machine.
  • the machine will be referred to herein as the puller.
  • the puller comprises a long shaped case having a passage for the rope at each end and means attached to the case for anchoring the machine.
  • the puller that is the machine to which this invention relates, is provided in its case with two sets of grips on the rope.
  • a pair of levers pivotally engages these grips and attaches them to a rocking plate or the like.
  • the rocking plate is mounted on a shaft, which is the fulcrum for the levers, and said shaft is oscillated by an operating handle which perforates the casing for this purpose.
  • a second operating handle is provided to bring about the reversal of the action of said grips.
  • Th mounting of the handles in this manner has meant that the casing of the puller has been open to the ingress of dust and dirt.
  • one set of grips is adapted to pull the rope through the machine in one direction while the other set of grips slides on the rope.
  • Each set of grips has been operated by the reciprocation of its respective handle, the selection of the particular handle depending in which direction it was desired to move the rope through the puller.
  • a puller having a pair of grips and operating levers connecting said grips to rocking plates or the like, is provided with a substantially dust proof casing, an operating handle outside of said casing and a latch operated outside of said casing adapted to bring either one or other grip into action.
  • the invention also provides for the latch to be in the form of a movable bridle adapted to position the levers in their required operative positions within the casing.
  • the invention further provides for said latch to be attached to said handle and adapted to couple one or other of said rocking plates or the like to move its attached levers in the required direction.
  • the invention also provides an operating handle the stroke of which is adjustable, to cope with an increase in the load on the rope.
  • the invention also provides a puller which, having only one operating handle, worked by a simple reciprocative movement may be operated manually or with the attachment of a power drive and have the reversal of the action of the puller made by means of the latch, that is without reversing the rotation of a driving member.
  • FIG. 1 shows in side elevation a puller in which the casing is closed with the latch and operating handle outside and the latter adjustable.
  • FIG. 2 is similar to FIG. 1 but with the latch on the operating handle and the parts modified and for an adjustable handle to be attached when necessary, and
  • FIG. 3 shows details on an enlarged scale of the latch for the machine shown in FIG. 2.
  • the rope is numbered 11 and passes through the casing 12.
  • the anchoring plate for the puller is marked 13.
  • the grips for gripping the rope are numbered 14 for the grip adapted to pull the rope in towards the anchor 13 and 15 for the grip operating in the reverse direction.
  • the lever 16 is rotatably coupled to the grip 14 and lever 17 is similarly coupled to the grip 15.
  • the operating lever 18 has a fulcrum about the pin 19 which is supported in a plate 20 in the casing 12.
  • the short end of lever 18 is rotatable on pin 21 in link 22 which is coupled at 23 with an extension of rocking plate 24 to which the levers 16 and 17 are rotatably coupled.
  • the rocking plate 24 is rotatably carried on shaft 25 which is a fulcrum for the levers 16, 17 and is mounted in the casing 12.
  • rocking plate 24, 26 is the pin coupling lever 17 and 27 the pin coupling the lever 16.
  • levers 16 and 17 and their respective grips 14 and 15 must be reversed. This reversal in FIG. 1 is done by lifting both levers simultaneously. Lever 17 will be disconnected from pin 28 and engaged with pin 29 and lever 16 will similarly be disconnected from pin 30 and engaged with pin 31. Both these pins 29, 31 are connected to grips 15 and 14 respectively.
  • the latch which is made to reverse the pulling action, consists of a rod 32, with a knob 33 outside of the casing 12.
  • Rod 32 carries a cross rod 34 freely slidable in pins 35 and 36 attached to the levers 16 and 17 respectively.
  • the recess 37 in lever 17 engages pin 29 and similarly the recess 38 in lever 16 engages pin 31.
  • the knob 33 is shaped that when pulled up it can be turned to be supported in the new position.
  • the latch for effecting reversal of the pull on the rope is positioned on the operating handle itself and a puller so modified is shown in FIGS. 2 and 3.
  • the rope is numbered 11 and the casing 12 and some other parts are numbered corresponding to those in FIG. 1.
  • the operating handle is numbered 39 and it is rotatable on the shraft which is a fulcrum for the levers 16 and 17 and in this case projects beyond the casing 12.
  • the part of the shaft 25 projecting beyond the casing 12 is reduced in diameter to provide a shoulder against which the handle 39, on a sleeve 41 entering the bore 42 in the handle, can oscillate.
  • the shaft 25 is provided with crank cheeks 43 providing crank pin 44 on which the end of lever 16 is coupled to reciprocate.
  • crank cheeks 43 providing crank pin 44 on which the end of lever 16 is coupled to reciprocate.
  • a sleeve 41 and shear pins 45 which enter holes half way in the bore of sleeve 41 and the periphery of the shaft 25 (as shown in FIG. 3), to complete the connection.
  • Plate 46 and set-screw 47 are provided to keep pins in place,
  • a rocking plate 50 Inside of the casing 12 is a rocking plate 50, which is rotatably connected to the sleeve 48 by shear pins 51.
  • This rocking plate 50 is rotatably connected to a link 52 by a pin 53 and said link 52 is connected to the end of lever 17, which, in this case, is of bellcrank shape, and is connected to grip 15 through a projecting piece 54 by a pin 55.
  • Link 56 holds the lever 17 in position by a pin 57 which acts as a fulcrum.
  • a latch provided in the form of a rotatable pawl 58 pivoted directly to the end of the handle 39.
  • Said pawl 58 can be turned to engage in notch 59 in sleeve 41 or in notch 60 in sleeve 48.
  • a spring 61 anchored to the casing 12 at 62, tends, through pin 55 in lever 17, to make grip 15 engage the rope 11 and hold it, at the same time any movement of the lower end of the bell crank 17 will tend to pull grip 14 by means of link 56.
  • the plate 65 joints the pins 63 and 55 and normally link 64 is pinned against operation.
  • the part 54 passes up to the top 66 as shown by the dotted lines. Where the puller is under load and the handle 39 cannot be operated, for example where the load or something else has prevented the use of the operating 4- handle, then a handle which could engage the top 66 of part 54 could operate through a leverage of pin 57 to move grip 15 and thus act, by successive oscillations to lower the load safely.
  • a suitable handle is made by using a part 67 of the casing 12.
  • the part 67 conveniently serves as a carrying handle 68 for the puller, and by loosening bolts 69, 70 can be removed. Its forked end 71 will slip over the end 66 and may be used as a handle to move the grip 15 as desired.
  • the casing 12 could be modified, as shown in dotted lines.
  • the lever 18 would be fulerumed about a pin 72 and the lower end of lever 18 would be coupled by a pin 73 to a link 74, which would be rotatably coupled by a pin '75 to an extension 76 of the cheek of crank 43.
  • An additional lever 18 as shown could be provided but usually it is not considered necessary in the improved puller illustrated and described in FIGS. 2 and 3. In fact this puller is the stronger and safer of the known pullers and will meet all requirements. It has the minimum number of working parts and with the mechanism enclosed in its casing, is kept in a dust proof manner.
  • the invention has been described as a puller operated manually, but it is obvious that a motor driven mechanism could be made to reciprocate handle 39 and, with the use of latch 58, the motor drive would not need to be reversed to reverse the action of the puller.
  • a rope puller the combination of a dust-proof casing, a pair of grips in said casing adapted to move over said rope in either gripping or release relation thereto, a shaft mounted in and projecting from said casing, a crank on said shaft, a lever pivotally connected to said crank and one of said grips, a rocking plate rotatably mounted on said shaft, a lever means pivotally connected to said plate and the other of said grips, a handle connected to said shaft exteriorly of said casing, a latch shaped as a pawl pivotally carried by said handle, freely rotatable sleeves on said shaft, notches in said sleeves adapted to be engaged by said pawl whereby the sleeve is moved by said handle, sheer pins engaging one sleeve in the crank shaft and sheer pins in the other sleeve en gaging it with said rocking plate whereby the handle may separately operate either grip.
  • one grip is connected to said crank by only one lever and is the load carrying grip and wherein the other grip is connected to said rocking plate by a plurality of levers and is the load releasing or lowering grip.
  • a rope puller the combination of a dust-proof casing, a pair of grips in said casing adapted to move over said rope in either gripping or lease relation thereto, a shaft mounted in and projecting from said casing, an operating handle freely rotatable on said shaft exteriorly of said casing, a rocking plate pivoted on said shaft, means connecting the plate to said handle, a bell-crank lever connected to a first grip and a lever connecting said bell-crank lever to the rocking plate, an anchor for said second grip, said anchor being operatively connected to said bell-crank lever, and spring means operating to bring the first grip to rope engaging position.
  • a rope puller the combination of a dust-proof casing, a pair of grips in said casing adapted to move over said rope in either gripping or release relation there to, a shaft mounted in and projecting from said casing, an operating handle freely rotatable on said shaft ex- 5 6 teriorly of said casing, a rocking plate pivoted on said References Cited by the Examiner shaft, means connecting said plate to said handle, a bell- UNITED STATES PATENTS crank lever connected to one grip, a lever connecting said bell-crank lever to said rocking plate, said casing having 1,485,232 2/1924 McCain 254-70 a removable portion, said portion embodying a carrying 5 2,585,101 2/1952 Frame 254-476 handle for the machine and being fork-shaped at one end for engaging said bell-crank lever and acting as an WILLIAM FELDMAN Prmmry Exammer' emergency handle if the operating handle is unusable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Catching Or Destruction (AREA)
  • Emergency Lowering Means (AREA)
US338395A 1963-01-31 1964-01-17 Friction grip rope puller Expired - Lifetime US3237920A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA63416 1963-01-31

Publications (1)

Publication Number Publication Date
US3237920A true US3237920A (en) 1966-03-01

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ID=25560736

Family Applications (1)

Application Number Title Priority Date Filing Date
US338395A Expired - Lifetime US3237920A (en) 1963-01-31 1964-01-17 Friction grip rope puller

Country Status (8)

Country Link
US (1) US3237920A (xx)
AT (1) AT261333B (xx)
BE (1) BE643229A (xx)
CH (1) CH441157A (xx)
ES (1) ES295907A1 (xx)
GB (1) GB1036171A (xx)
LU (1) LU45332A1 (xx)
NL (1) NL6400711A (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334865A (en) * 1964-02-04 1967-08-08 Central De Gestion Et De Contr Hydraulic winch with self-clamping jaws
US3485478A (en) * 1966-10-22 1969-12-23 Tractel Sa Safety device of cable-clamping traction apparatus
US3572635A (en) * 1968-06-27 1971-03-30 Tractel Sa Release control and safety device for clamp-type traction and hoisting apparatus
US3881693A (en) * 1972-05-16 1975-05-06 Greifzug Hebezeugbau Gmbh Cable hauling apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110723675B (zh) * 2019-08-30 2021-10-12 广州文冲船厂有限责任公司 一种楔块移动装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1485232A (en) * 1922-09-20 1924-02-26 Myol N Peaslee Cable jack
US2585101A (en) * 1945-09-05 1952-02-12 Faure Simon Hauling and hoisting gear

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1485232A (en) * 1922-09-20 1924-02-26 Myol N Peaslee Cable jack
US2585101A (en) * 1945-09-05 1952-02-12 Faure Simon Hauling and hoisting gear

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334865A (en) * 1964-02-04 1967-08-08 Central De Gestion Et De Contr Hydraulic winch with self-clamping jaws
US3485478A (en) * 1966-10-22 1969-12-23 Tractel Sa Safety device of cable-clamping traction apparatus
US3572635A (en) * 1968-06-27 1971-03-30 Tractel Sa Release control and safety device for clamp-type traction and hoisting apparatus
US3881693A (en) * 1972-05-16 1975-05-06 Greifzug Hebezeugbau Gmbh Cable hauling apparatus

Also Published As

Publication number Publication date
CH441157A (de) 1967-07-31
GB1036171A (en) 1966-07-13
BE643229A (xx) 1964-05-15
NL6400711A (xx) 1964-08-03
AT261333B (de) 1968-04-25
LU45332A1 (xx) 1964-03-31
ES295907A1 (es) 1964-04-01

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