US667775A - Chain-link. - Google Patents

Chain-link. Download PDF

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Publication number
US667775A
US667775A US1750900A US1900017509A US667775A US 667775 A US667775 A US 667775A US 1750900 A US1750900 A US 1750900A US 1900017509 A US1900017509 A US 1900017509A US 667775 A US667775 A US 667775A
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United States
Prior art keywords
link
chain
shrinkage
metal
howe
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Expired - Lifetime
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US1750900A
Inventor
Glenn G Howe
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EWART MANUFACTURING Co
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EWART Manufacturing Co
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Publication date
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Priority to US1750900A priority Critical patent/US667775A/en
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Publication of US667775A publication Critical patent/US667775A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G13/00—Chains
    • F16G13/02—Driving-chains

Definitions

  • FIG. 1 is a plan view of myimproved chainlink, partly broken away.
  • Fig. 2 is a side elevation, and
  • Fig. 3 is an end elevation.
  • my invention consists in forming in the link, by means of cores inserted at the proper places in the mold, thin slotted openings which cause a separation of the metal at the points Where shrinkage is to be prevented.
  • 2 represents a link having a hook 3, side bars 4, and an end bar 5.
  • slots which are constituted by placing small cores in the molds in which the links are cast, prevent shrinkage of the metal during casting, and as they expose surfaces upon which the annealing process may readily take effectthe slotted portions are made stronger by annealing than they would be if the metal were solid at those points.
  • a link having small openings in it and extending inwardly from its corners for the purpose of preventing shrinkage; substantially as described.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Description

No. 667,775. Patented Feb. \2, I901.
a, a. HOWE. v
CHAIN LINK.
(Application filed May 22, 1900 No Model.)
WITNESSES INVENTOR UNITED STATES P TENT FFICE.
GLENN G. HOWE, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO THE EWART MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS.
CHAIN-LINK.
SPECIFICATION formingpart of Letters Patent No. 667,775, dated February 12, 1901.
Application filed May 22, 1900.
To all whom, it may concern.-
Be it known that I, GLENN G. HOWE, of Indianapolis, Marion county, Indiana, have invented a new and useful Improvement in Chain-Links, of which the following isa full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a plan view of myimproved chainlink, partly broken away. Fig. 2 is a side elevation, and Fig. 3 is an end elevation.
In casting links for drive-chains difficulty has been experienced by reason of the formation of shrinkage-cracks, especially at the corners between the side bars and end bar. It is the purpose of my invention to prevent this by means which do not impair the efficiency of the link, but increase its strength and practical usefulness.
To that end my invention consists in forming in the link, by means of cores inserted at the proper places in the mold, thin slotted openings which cause a separation of the metal at the points Where shrinkage is to be prevented.
In the drawings, 2 represents a link having a hook 3, side bars 4, and an end bar 5. In
the corners 6 I form slots or small openings 7,
Serial No. 17,509. (No model.)
preferably extending through the metal to the inner lines of the link in the plane of the side bars. These slots, which are constituted by placing small cores in the molds in which the links are cast, prevent shrinkage of the metal during casting, and as they expose surfaces upon which the annealing process may readily take effectthe slotted portions are made stronger by annealing than they would be if the metal were solid at those points.
My improvement may be applied to links of various forms and constructions, since What I claim is 1. A metal link having a small opening in it at a place where shrinkage is apt to occur for the purpose of preventing such shrinkage; substantially as described.
2. A link having small openings in it and extending inwardly from its corners for the purpose of preventing shrinkage; substantially as described.
In testimony whereof I have hereunto set my hand.
GLENN G. HOWE.
Witnesses:
CLINTON E. PROUSE, H. D. GORDON.
US1750900A 1900-05-22 1900-05-22 Chain-link. Expired - Lifetime US667775A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1750900A US667775A (en) 1900-05-22 1900-05-22 Chain-link.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1750900A US667775A (en) 1900-05-22 1900-05-22 Chain-link.

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US667775A true US667775A (en) 1901-02-12

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