US1517130A - Log hook - Google Patents

Log hook Download PDF

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Publication number
US1517130A
US1517130A US714737A US71473724A US1517130A US 1517130 A US1517130 A US 1517130A US 714737 A US714737 A US 714737A US 71473724 A US71473724 A US 71473724A US 1517130 A US1517130 A US 1517130A
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Prior art keywords
cable
log
members
link
tongs
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Expired - Lifetime
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US714737A
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Charles E Ruppert
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Individual
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Priority to US714737A priority Critical patent/US1517130A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
    • B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
    • B66C1/58—Gripping members engaging only the external or internal surfaces of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples
    • B66C1/585—Log grapples

Definitions

  • Another ob ect of the invention 1 s the pro vision of means for attaching a chain or cable to the tongs so that a direct pull along the longitudinal center of the tongs may be exerted and the engaging end of the latter maintained in gripping position.
  • Figure 1 is an elevation of a pair of logging tongs constructed in accordance with the invention.
  • Figure 2 is an edge view of the same.
  • the invention is shown as comprising a pair of pivotally connected members and 11, the pivotal connection being indicated at 12.
  • One end of each of these members is provided with an inwardly curved portion 13 which terminates in a penetrating or engaging point 14;, the points being so arranged as to extend inwardly toward one another.
  • the member 10 includes an arm 15 to which is pivotally secured a link or clevis 16, the arm being provided with a plurality of openings 17 so that the links 16 may be adjusted thereon.
  • This link has secured thereto one end of a chain or cable 18.
  • the member 11 is provided with a relatively short arm 19 and pivotally secured to this arm as shown at 20 is one end of a link 21 in which is rotatably mounted a guide roller 22 over which the chain or cable 18 passes. lVhen a pull is exerted upon the chain or cable 18, the lineof draft will be in a direct longitudinal central line, the link 21 automatically adjusting itself for this purpose. At the same time the pull will cause the engaging ends 1d of the members 10 and 11 to tightly grip a log L or other object.
  • the invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the ap pended claim.
  • a pair of tongs comprising a pair o pivotally connected members, oppositely disposed inwardly extending engaging points at one end of said members, a cable having one end secured to the opposite end of one of said members, a link having one end pivotally secured to the opposite end of the other member and a guide carried by the link for receiving the cable, whereby the engaging points of the members may be forced inwardly and pull exerted cen trally and longitudinally of the tongs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Description

C. E. RUPPERT LOG HOOK Filed May 20, 1924 jlll' WITNESS:
U. KEM sari INVENTOR ATTORNEY Patented Nov, .25, 1924;.
CHARLES E. RUPPER-T, OF WESTMINSTER, MARYLAND.
LOG HOOK Application filed May 20, 1924. Serial No. 714:,737.
whereby a chain or cable may be easily and securely attached to a log for the purpose of snaking.
Another ob ect of the invention 1s the pro vision of means for attaching a chain or cable to the tongs so that a direct pull along the longitudinal center of the tongs may be exerted and the engaging end of the latter maintained in gripping position.
With the above and other objects in View the invention further includes the following novel features and details of construction,
to be hereinafter more fully described, il
lustrated in the accompanying drawings and pointed out in the appended claims.
In the drawings Figure 1 is an elevation of a pair of logging tongs constructed in accordance with the invention.
Figure 2 is an edge view of the same.
Referring to the drawings in detail where in like characters of reference denote corresponding parts, the invention is shown as comprising a pair of pivotally connected members and 11, the pivotal connection being indicated at 12. One end of each of these members is provided with an inwardly curved portion 13 which terminates in a penetrating or engaging point 14;, the points being so arranged as to extend inwardly toward one another.
The member 10 includes an arm 15 to which is pivotally secured a link or clevis 16, the arm being provided with a plurality of openings 17 so that the links 16 may be adjusted thereon. This link has secured thereto one end of a chain or cable 18.
The member 11 is provided with a relatively short arm 19 and pivotally secured to this arm as shown at 20 is one end of a link 21 in which is rotatably mounted a guide roller 22 over which the chain or cable 18 passes. lVhen a pull is exerted upon the chain or cable 18, the lineof draft will be in a direct longitudinal central line, the link 21 automatically adjusting itself for this purpose. At the same time the pull will cause the engaging ends 1d of the members 10 and 11 to tightly grip a log L or other object.
The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the ap pended claim.
Having described the invention what \S claimed is A pair of tongs comprising a pair o pivotally connected members, oppositely disposed inwardly extending engaging points at one end of said members, a cable having one end secured to the opposite end of one of said members, a link having one end pivotally secured to the opposite end of the other member and a guide carried by the link for receiving the cable, whereby the engaging points of the members may be forced inwardly and pull exerted cen trally and longitudinally of the tongs.
In testimony whereof I afiix my signature.
CHARLES E. RUPPERT
US714737A 1924-05-20 1924-05-20 Log hook Expired - Lifetime US1517130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US714737A US1517130A (en) 1924-05-20 1924-05-20 Log hook

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US714737A US1517130A (en) 1924-05-20 1924-05-20 Log hook

Publications (1)

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US1517130A true US1517130A (en) 1924-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US714737A Expired - Lifetime US1517130A (en) 1924-05-20 1924-05-20 Log hook

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786709A (en) * 1953-06-02 1957-03-26 Albert R Wirkkala Log handling tongs
US2926891A (en) * 1956-05-04 1960-03-01 Ivan E Holt Mechanical stabber for rod or tubing pulling units
US3684994A (en) * 1969-07-02 1972-08-15 Robertshaw Controls Co Hot wire relay type devices and methods of maintaining or producing such devices
US7708072B1 (en) 2005-04-05 2010-05-04 Hunziker David G Accessories and method for hollow stem auger retraction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786709A (en) * 1953-06-02 1957-03-26 Albert R Wirkkala Log handling tongs
US2926891A (en) * 1956-05-04 1960-03-01 Ivan E Holt Mechanical stabber for rod or tubing pulling units
US3684994A (en) * 1969-07-02 1972-08-15 Robertshaw Controls Co Hot wire relay type devices and methods of maintaining or producing such devices
US7708072B1 (en) 2005-04-05 2010-05-04 Hunziker David G Accessories and method for hollow stem auger retraction

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