US1379255A - Pulley-block - Google Patents

Pulley-block Download PDF

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Publication number
US1379255A
US1379255A US362491A US36249120A US1379255A US 1379255 A US1379255 A US 1379255A US 362491 A US362491 A US 362491A US 36249120 A US36249120 A US 36249120A US 1379255 A US1379255 A US 1379255A
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US
United States
Prior art keywords
block
strap
pulley
construction
lugs
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
US362491A
Inventor
Jr John H Flynn
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.)
EUREKA TACKLE BLOCK Co
Original Assignee
EUREKA TACKLE BLOCK Co
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 EUREKA TACKLE BLOCK Co filed Critical EUREKA TACKLE BLOCK Co
Priority to US362491A priority Critical patent/US1379255A/en
Application granted granted Critical
Publication of US1379255A publication Critical patent/US1379255A/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
    • B66D3/04—Pulley 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/02—Hoists or accessories for hoists
    • B66D2700/026—Pulleys, sheaves, pulley blocks or their mounting
    • B66D2700/028—Pulley blocks with multiple sheaves

Definitions

  • An object of my invention is to produce an improved pulley block construction in which indestructibilty and greater strength is attained, also a less weighty construction than heretofore and in which greater economy of cost is also attained.
  • Figure 1 is a transverse view of the single pulley block shown in Fig. 1, taken on line 1-1 of Fig. 2.
  • Fig. 2 is a sectional view of the single pulley block shown in Fig. 1, taken on line 2-2 of Fig. 1.
  • Fig. 3 is a perspective view of a detail of the pulley block shown in Figs. 1 and 2.
  • My invention as illustrated in Figs 1 to 3 inclusive shows a form in which the strap 16 shown in Fig. 3 is cast into a block 17 with a pulley l8 rotatively mounted on a spindle 19 located in the strap bearings and in the casting of the block.
  • I provide lugs or ears 20 and 21 on the sides of the strap branches 22 and 23, which when the casting is made are embedded within the metal of the casting as shown in Fig. 2.
  • a hook 24 is provided, being placed over the strap before the castng is made and is embedded in a core durmg the casting operation.
  • a bolt 25 is passed, a thimble 26 or other desired rope accessory being located on the bolt.
  • a pulley block construction comprising a substantially U-shaped sheet metal strap having lugs extending from the sides thereof, rope connecting elements at the ends of the strap, and a block having the material thereof embedding the lugs and sides of the strap between the rope connecting elements attatched thereto.
  • a pulley block construction comprising a metal strap having lugs extending from the edges thereof, a block having the material thereof cast upon the strap and substantially surrounding the lugs thereof, and rope connecting means at the ends of the block and upon the strap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Belt Conveyors (AREA)

Description

UNITED STATES PATENT OFFICE.
JOHN H. FLYNN, JR., OF CINCINNATI. OHIO, ASSIGNOR TO THE EUREKA TACKLE BLOCK COMPANY, OF CINCINNATI, OHIO.
PULLEY-BLOCK.
Specification of Letters Patent.
Patented May 24, 1921.
Application filed March 1, 1920. Serial No. 362,491.
To all whom it may concern:
Be it known that I, J OHN H. FLYNN, J11, a citizen of the United States, residing in Cincinnati, in the county of Hamilton and State of Ohio, have invented new and useful Improvements in Pulley-Blocks, of
' which the following is a specification.
An object of my invention is to produce an improved pulley block construction in which indestructibilty and greater strength is attained, also a less weighty construction than heretofore and in which greater economy of cost is also attained.
This and other objects are attained in the pulley construction described in the following specification and illustrated in the accompanying drawing in which:
Figure 1 is a transverse view of the single pulley block shown in Fig. 1, taken on line 1-1 of Fig. 2.
Fig. 2 is a sectional view of the single pulley block shown in Fig. 1, taken on line 2-2 of Fig. 1.
Fig. 3 is a perspective view of a detail of the pulley block shown in Figs. 1 and 2.
My invention, as illustrated in Figs 1 to 3 inclusive shows a form in which the strap 16 shown in Fig. 3 is cast into a block 17 with a pulley l8 rotatively mounted on a spindle 19 located in the strap bearings and in the casting of the block. In order to hold the strap and block inseparable and in interlocked relation with one another, I provide lugs or ears 20 and 21 on the sides of the strap branches 22 and 23, which when the casting is made are embedded within the metal of the casting as shown in Fig. 2. At the top of the strap a hook 24 is provided, being placed over the strap before the castng is made and is embedded in a core durmg the casting operation. At the bottom of the strap branches a bolt 25 is passed, a thimble 26 or other desired rope accessory being located on the bolt.
Having thus described my invention what I claim is 1. A pulley block construction comprising a substantially U-shaped sheet metal strap having lugs extending from the sides thereof, rope connecting elements at the ends of the strap, and a block having the material thereof embedding the lugs and sides of the strap between the rope connecting elements attatched thereto.
2. A pulley block construction comprising a metal strap having lugs extending from the edges thereof, a block having the material thereof cast upon the strap and substantially surrounding the lugs thereof, and rope connecting means at the ends of the block and upon the strap.
In witness whereof, I afix my signature in the presence of two witnesses.
JOHN H. FLYNN, JR.
Witnesses:
N. FLYNN, W. J. SCHULTZ.
US362491A 1920-03-01 1920-03-01 Pulley-block Expired - Lifetime US1379255A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US362491A US1379255A (en) 1920-03-01 1920-03-01 Pulley-block

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US362491A US1379255A (en) 1920-03-01 1920-03-01 Pulley-block

Publications (1)

Publication Number Publication Date
US1379255A true US1379255A (en) 1921-05-24

Family

ID=23426327

Family Applications (1)

Application Number Title Priority Date Filing Date
US362491A Expired - Lifetime US1379255A (en) 1920-03-01 1920-03-01 Pulley-block

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US (1) US1379255A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625942A1 (en) * 1988-01-15 1989-07-21 Vollet Jerome Holder for rolling devices and, in particular, a pulley whose case is a moulded one-piece body
WO2006130917A1 (en) * 2005-06-09 2006-12-14 Donald Butler Curchod Improved high load connection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625942A1 (en) * 1988-01-15 1989-07-21 Vollet Jerome Holder for rolling devices and, in particular, a pulley whose case is a moulded one-piece body
WO2006130917A1 (en) * 2005-06-09 2006-12-14 Donald Butler Curchod Improved high load connection system

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