US1041826A - Chain-repair tool. - Google Patents

Chain-repair tool. Download PDF

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Publication number
US1041826A
US1041826A US71064112A US1912710641A US1041826A US 1041826 A US1041826 A US 1041826A US 71064112 A US71064112 A US 71064112A US 1912710641 A US1912710641 A US 1912710641A US 1041826 A US1041826 A US 1041826A
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United States
Prior art keywords
chain
bill
repair tool
bills
tool
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
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US71064112A
Inventor
John N Macdonald
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.)
JAMES M MACDONALD
Original Assignee
JAMES M MACDONALD
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Publication date
Application filed by JAMES M MACDONALD filed Critical JAMES M MACDONALD
Priority to US71064112A priority Critical patent/US1041826A/en
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Publication of US1041826A publication Critical patent/US1041826A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments

Definitions

  • This invent-ion relates to chain repair e "tools and particularly to an improvement in tools for opening and closing the end hooks of the cross chains of an automobile tire chain and the like.
  • My present invention involves certain new improvements inthe construction of the bills of the wedging; members, and further of the'construction of the closing members by which the parallel hooks may be maintained parallel preventing overlapping and distortion.
  • Figure 1 is a side view of a tool embody ing my invention
  • Fig. 2 is an edge view of the same
  • Fig. 3 is an end view showing the overlapping bills.
  • Fig. I is an enlarged detail of the head showing the action of bills in opening a hook.
  • Fig. 5 is a detail showing the action in closing.
  • the tool as illustrated comprises a'pair of crossed handle members 1 and 2 pivoted at 3.
  • the member 2 has an offsetbill 5 having an external expanding surface 5 and an internal expanding surface 5?.
  • the offset portion leaves an inclined shoulder 6.
  • the bill of the member 1 is correspondingly formed with an offset wedge 4 with the shoulder 7 and having an externalexpanding surface 4: and an internal expandingsurface 4 Just inside the bills on each jaw.
  • the pro ect1on l0 and between it and the hill 3 is formed another projection 10 defining.
  • the shoulders 6 and 7 furthermore provide supports for the tips of the wedges shortly after.
  • a tool of the class described comprising a pair f pivoted crossedmembers, a wedge shaped ill on each member, said bills being each latgrally offset so as to lie in the plane of the pposite member and forming with its own men'obera shoulder for receiving and supportingthe point of the opposite bill.
  • a tool of the class described comprising a pair of pivoted crossed members, a wedge shaped bill on each member, said bills being each laterally offset so as to lie in the plane of the opposite member and forming. with its own member a shoulder for receiving and supporting the point of the opp site bill.
  • each of said members being corresp ndingly recessed below its bill to form a clearance space below the surface and each having a pair of similar grooves providing opposite individual bearing surfaces for closing the'hooks while supporting them inparv a pair of pivoted crossed members, a Wedge I grooves for supporting double hooks in parshaped bill on each member, said bills being I allel position during closing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tents Or Canopies (AREA)

Description

J. N. MAQDONALD. cam: REPAIR- TOOL. APILIOATION iILBD JULY 20,1912.
Pa tented 0013.22, 1912.
Wrrxv sses 91. 03 mm 1/. M
UNITED sraxrns- PATEN OFFICE.
JOHN N. MACDON LD, or HARTFORD, CONNECTICUT, ASSIG-NOR TO JAMES M.
MACDONALD, OF WETI-IERSFIELD, CONNECTICUT.
cHAIN-RErAI-R TOOL.
Application filed July 20, 1912. Serial No. 7 o,e41.
Specification of Letters Patent.
PatentedOct. 22,1912.
To all whom it may concern:
Be it known that I, JOHN N. MACDONALD,
useful Improvements in Chain-Repair Tools,
of which the following is a specification.
This invent-ion relates to chain repair e "tools and particularly to an improvement in tools for opening and closing the end hooks of the cross chains of an automobile tire chain and the like.
My present invention involves certain new improvements inthe construction of the bills of the wedging; members, and further of the'construction of the closing members by which the parallel hooks may be maintained parallel preventing overlapping and distortion.
Various other features of construction are also included which will be more fully de-' principles involved in'my invent-ion.
Throughout specification and drawing like reference numerals are'employed to indicate corresponding parts. and in the drawmgs.
Figure 1 is a side view of a tool embody ing my invention, Fig. 2 is an edge view of the same, Fig. 3 is an end view showing the overlapping bills. Fig. I is an enlarged detail of the head showing the action of bills in opening a hook. and Fig. 5 is a detail showing the action in closing.
The tool as illustrated comprises a'pair of crossed handle members 1 and 2 pivoted at 3.
.The member 2 has an offsetbill 5 having an external expanding surface 5 and an internal expanding surface 5?. The offset portion leaves an inclined shoulder 6. The bill of the member 1 is correspondingly formed with an offset wedge 4 with the shoulder 7 and having an externalexpanding surface 4: and an internal expandingsurface 4 Just inside the bills on each jaw. is formed a projection lOwhich constltutes a stop and also defines an opening 8 which provides a free space in which the shank or point of the hook may rest during the openmg operation shown in Fig t. the pro ect1on l0 and between it and the hill 3 is formed another projection 10 defining.
two openings 9 into which'the parallel hooks L of the end hook of the chain L may rest In this position the'hooks are in closing. held absolutely parallel in closing with a firm pressure so that there is no possibility of theoverlapping of the points.
The offsetting of the wedges 5 so that they lie on the opposite side of the pivot 3 from that on which the handle crosses makes mutual lateral support for the wedges. The shoulders 6 and 7 furthermore provide supports for the tips of the wedges shortly after.
they come into contacttherewit so that; as
Just below i the strain of the wedges increases they are.
supported by the shoulders 6 and 7 L 7 Various modifications may obviously be made in'my device, all without departing from the spirit of my invention if-within the limits of the appended claims.
What I. therefore, claim and desire to secure by Letters Patent is 1. A tool of the class described comprising a pair f pivoted crossedmembers, a wedge shaped ill on each member, said bills being each latgrally offset so as to lie in the plane of the pposite member and forming with its own men'obera shoulder for receiving and supportingthe point of the opposite bill.
2. A tool of the class described comprising a pair of pivoted crossed members, a wedge shaped bill on each member, said bills being each laterally offset so as to lie in the plane of the opposite member and forming. with its own member a shoulder for receiving and supporting the point of the opp site bill. each of said members being corresp ndingly recessed below its bill to form a clearance space below the surface and each having a pair of similar grooves providing opposite individual bearing surfaces for closing the'hooks while supporting them inparv a pair of pivoted crossed members, a Wedge I grooves for supporting double hooks in parshaped bill on each member, said bills being I allel position during closing. 10
each offset so as to lie in the plane of the, In testimony whereof I afiix my signature opposite member, and forming with its own in presence of two witnesses. member a shoulder for receiving and sup- JOHN N. MACDONALD. porting the point of the opposite bill, each Witnesses:
of said members being correspondingly re- MAY G. MoC-omnox,
cessed below its bill. 3:0 form similar opposite JAMES M. MACDONALD.
US71064112A 1912-07-20 1912-07-20 Chain-repair tool. Expired - Lifetime US1041826A (en)

Priority Applications (1)

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US71064112A US1041826A (en) 1912-07-20 1912-07-20 Chain-repair tool.

Applications Claiming Priority (1)

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US71064112A US1041826A (en) 1912-07-20 1912-07-20 Chain-repair tool.

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US1041826A true US1041826A (en) 1912-10-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647186A (en) * 1970-03-09 1972-03-07 Wallace H Hartman Tool for tensioning and holding roller chains

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3647186A (en) * 1970-03-09 1972-03-07 Wallace H Hartman Tool for tensioning and holding roller chains

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