US1288137A - Hoisting mechanism. - Google Patents

Hoisting mechanism. Download PDF

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Publication number
US1288137A
US1288137A US17421717A US17421717A US1288137A US 1288137 A US1288137 A US 1288137A US 17421717 A US17421717 A US 17421717A US 17421717 A US17421717 A US 17421717A US 1288137 A US1288137 A US 1288137A
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Prior art keywords
hoisting mechanism
chain
hand
ordinary
auxiliary
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Expired - Lifetime
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US17421717A
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Henry B Newhall Jr
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00Portable or mobile lifting or hauling appliances
    • B66D3/04Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage

Definitions

  • My invention relates to hoisting mechanism, and more particularly to an auxiliary hoisting mechanism to be used in connection with a flexible driving member of a more powerful hoisting mechanism.
  • auxiliary device to operate the ordinary chain member of a standard chain hoist.
  • flexible member in the form of a chain, any other suitable form of flexible member may be used.
  • Figure l is a side elevation of the'ordinary form of standard chain hoist, showing my auxiliary hoisting mechanism cooperating with a hand chain;
  • Fig. 2 is a side elevation, similar to Fig. 1, except that my auxiliary power member is shown operating the flexible member, or
  • Fi 3 is aside elevation of m auxiliary power member, equipped to cooperate with a flexible member in the form of a hand chain;
  • Fig. 4 is a vertical section substantially on the line H of Fig. 5, looking in the direction of the arrows;
  • Fig. 5 is a plan view of my auxiliary hoisting mechanism. the hand chain being shown in horizontal section, and a portion of the sprocket wheel being broken away for the purpose of clearer illustration.
  • the ordinary heavy capacity hand crane can be speeded up so that it may be operated ten or fifteen times, or more, faster than it can be operated manually.
  • auxiliary hoisting mechanism may be moved from one to another crane performing its work equally well. In cases, where it is not desired tooperate it for any reason, it can be readily disconnected and laid aside until such time as it may be desirable to use it again.
  • auxiliary power member formed in the device shown by way of example, by the two side plates2 and 3, provided with downwardly ext-ending arms 4 and 5, respectively, which are permanently connected together by means of the cross plate 6.
  • On the side plate 2. I secure, in any suitable manner as by the bolts 7, 7, thebearing plate 8, a similar bearing plate 9 being similarly secured upon the side plate 3.
  • Mounted in these bearing plates 8 and 9 is the main axle 10 upon which is keyed the worm wheel 11 and also thechain pocket wheel 12, if my device is to be operated with a flexible member in the form of a hand chain 18.
  • the ordinary hook 41 is mounted on the ordinary load chain 40.
  • a driving member 14 Permanently secured upon the cross Plate 6 is a driving member 14, which, in the form illustrated, is an electric motor, having a vertical shaft 15 upon which is carried a

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Description

H. B. NEWHALL, JR.
HOISTING MECHANISM.
APPLICATION FILED JUNE 12. 191?.
1,288,137. Patented Dec. 17. 1918.
2 SHEETS-SHEET I.
a nve'hto'c H. B. NEWHALL, JR.
HOISTING MECHANISM.
APPLICATION FILED JUNE I2, 1911.
Patented Dec. 17, 1918.
tinrrnn srarns Arm nnro HENRY B. NEWHALL, JR., 0F PLAINFIELD, NEW JERSEY.
norsrrne MECHANISM.
ing is a specification, taken in connection with the accompanying drawings.
My invention relates to hoisting mechanism, and more particularly to an auxiliary hoisting mechanism to be used in connection with a flexible driving member of a more powerful hoisting mechanism. I
More specifically, it relates to. an auxiliary device to operate the ordinary chain member of a standard chain hoist. Of course, it-is to be understood that while I have shown the flexible member in the form of a chain, any other suitable form of flexible member may be used. r
I have shown in the accompanying drawings, different illustrative embodiments of my invention, but of course it is to be understood that my invention is not to be confined simply to the forms illustrated, except as required by the scope 1 of the accompanying claims. In these drawings the same reference numerals refer to similar parts.
Figure l is a side elevation of the'ordinary form of standard chain hoist, showing my auxiliary hoisting mechanism cooperating with a hand chain;
Fig. 2 is a side elevation, similar to Fig. 1, except that my auxiliary power member is shown operating the flexible member, or
chain, in the reverse direction than that shown in Fig. 1; V
Fi 3 is aside elevation of m auxiliary power member, equipped to cooperate with a flexible member in the form of a hand chain;
Fig. 4 is a vertical section substantially on the line H of Fig. 5, looking in the direction of the arrows;
Fig. 5 is a plan view of my auxiliary hoisting mechanism. the hand chain being shown in horizontal section, and a portion of the sprocket wheel being broken away for the purpose of clearer illustration. I
Large hand power cranes are now in common use in locations where they are not used often enough to warrant the additional expense of installing electric cranes 0f the Specification of Letters Patent.
Application filed J une 12, 1917.
Patented Dec. 17, rate. Serial No. 174,217. I
same capacity. For example, in factories, power houses, sugar mills and where it is necessary to replace armatures, dismantle dynamos or turbines, or handle the rolls of a sugar mill, or other heavy part of the operatmg equipment. These cranes often run as high as fifty tons capacity. They are equipped with the ordinary chain blocks which are operated by a flexible member or hand chain. To operate these heavy cranes oftentakes a great deal of time, oftenhours, to hoist an armature, or other similar heavy portion of the equipment, only a few feet, so that the necessary work in connection with, or upon, it may be accomplished. This is on account of the multitude of gear and chain reductions necessary to hoist heavy loads by hand power.
By my invention, with a very slight additional outlay, the ordinary heavy capacity hand crane can be speeded up so that it may be operated ten or fifteen times, or more, faster than it can be operated manually.
In locations where more than one such crane is used my auxiliary hoisting mechanism may be moved from one to another crane performing its work equally well. In cases, where it is not desired tooperate it for any reason, it can be readily disconnected and laid aside until such time as it may be desirable to use it again. a
In the particular embodiment of my invention. shown in the drawings, 1, Fig. 3, is my auxiliary power member, formed in the device shown by way of example, by the two side plates2 and 3, provided with downwardly ext-ending arms 4 and 5, respectively, which are permanently connected together by means of the cross plate 6. On the side plate 2. I secure, in any suitable manner as by the bolts 7, 7, thebearing plate 8, a similar bearing plate 9 being similarly secured upon the side plate 3. Mounted in these bearing plates 8 and 9 is the main axle 10 upon which is keyed the worm wheel 11 and also thechain pocket wheel 12, if my device is to be operated with a flexible member in the form of a hand chain 18. The ordinary hook 41 is mounted on the ordinary load chain 40. Y i
Permanently secured upon the cross Plate 6 is a driving member 14, which, in the form illustrated, is an electric motor, having a vertical shaft 15 upon which is carried a
US17421717A 1917-06-12 1917-06-12 Hoisting mechanism. Expired - Lifetime US1288137A (en)

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US17421717A US1288137A (en) 1917-06-12 1917-06-12 Hoisting mechanism.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634000A (en) * 1947-04-28 1953-04-07 Charles J Ulrich Hoisting apparatus
DE4413499A1 (en) * 1994-04-19 1995-10-26 Ludwig Obermeier Lifting and lowering appliance for attachment to hand chain lifting loads
US6179270B1 (en) * 1999-10-12 2001-01-30 Robert Higdon Portable drive assembly for a manual chain hoist
US20140353563A1 (en) * 2013-06-03 2014-12-04 Robin Sargent Lifting Assembly
US10099904B1 (en) * 2017-05-25 2018-10-16 James Zaguroli, Jr. Safety arrangement for a hoist

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634000A (en) * 1947-04-28 1953-04-07 Charles J Ulrich Hoisting apparatus
DE4413499A1 (en) * 1994-04-19 1995-10-26 Ludwig Obermeier Lifting and lowering appliance for attachment to hand chain lifting loads
US6179270B1 (en) * 1999-10-12 2001-01-30 Robert Higdon Portable drive assembly for a manual chain hoist
US20140353563A1 (en) * 2013-06-03 2014-12-04 Robin Sargent Lifting Assembly
US9315365B2 (en) * 2013-06-03 2016-04-19 Robin Sargent Lifting assembly
US10099904B1 (en) * 2017-05-25 2018-10-16 James Zaguroli, Jr. Safety arrangement for a hoist

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