US219677A - Improvement in safety-hooks - Google Patents

Improvement in safety-hooks Download PDF

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Publication number
US219677A
US219677A US219677DA US219677A US 219677 A US219677 A US 219677A US 219677D A US219677D A US 219677DA US 219677 A US219677 A US 219677A
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US
United States
Prior art keywords
hook
safety
hooks
shank
keeper
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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Classifications

    • 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
    • B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
    • B66C1/34—Crane hooks
    • B66C1/36—Crane hooks with means, e.g. spring-biased detents, for preventing inadvertent disengagement of loads
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B45/00—Hooks; Eyes
    • F16B45/04—Hooks with sliding closing member
    • F16B45/051—Hooks with sliding closing member provided with a guide of the closing member encircling a shank of the hook
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45272—Projection passes through cavity then moves toward noninserted portion of its member to complete interlock [e.g., snap hook]
    • Y10T24/45288—Hook type projection member
    • Y10T24/45304—Noninserted portion of projection member includes movably connected gate for closing access throat
    • Y10T24/45382—Track or way guided gate
    • Y10T24/45387—Track or way guided gate having means biasing gate
    • Y10T24/45393—Guide of gate encircles shank
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0911—Hooked end
    • Y10T292/0945—Operating means
    • Y10T292/0951—Rigid
    • Y10T292/0956—Sliding catch

Definitions

  • the object of this invention is to prevent the bucket or other object suspended from the hook from slipping therefrom. It consists in providing the hook with a keeper sliding on the shank to and from the point thereof, and a spring for locking it in place against the end of the hook.
  • Figure 1 is a sideview of the hook,partly in section,show ing the position of the keeper when closed against the end of the hook.
  • Fig. 2 is an edge p view of the hook and keeper from the front,
  • Fig. 3 is a cross-section of Fig. 1 on line m m.
  • A is the hook
  • B is the shank thereof
  • C is the eye by which it is suspended from the rope or chain.
  • a In the front edge ofthe shank is aslot, a, in which is set a spring, b, with its end next to the eye secured by'a pivot, c, passed through the shank.
  • D is the keeper, with two rightangular arms, d d', the latter extending backward against the front edge ofthe shank, and having a rectangular socket, e, through which the shank is passed, while the former extends in the opposite direction in line with the end f of the hook.
  • the end of arm d has a socket, g, which receives the pointed end of the hook, as clearlyr shown in Fig. 1.
  • a safety-hook composed of the hook A, with shank B, the eye C, and the sliding keeper D, and having the spring b fastened at-one end to the upper side of its shank extended in groove a and adapted to rise behind the slide and lock it, as described.

Description

H; BLAKEMAN. Safety-Hooks,.
WITNESSES INVENTOR L' wzl/f Ma/i N /mm/ i BY ETORNEYS.
UNITED STATES PATENT OEEIGE.
HENRY BLAKEMAN, OF JEFFERSON CITY, MONTANA TERRITORY.
IMPROVEMEN'I' IN SAFETY-HOOKS.
Specification forming part of Letters Patent No. 2 [9.677, dated September 16, 1879; application filed.
May 22, 1879.
To all whom it may concern.'
Be it known that I, HENRY BLAKEMAN, of Jefferson City, in the county of Jefferson andY Territory of Montana, have invented a new and Improved Safety-Hook, of which the following is a speciiication.
The object of this invention is to prevent the bucket or other object suspended from the hook from slipping therefrom. It consists in providing the hook with a keeper sliding on the shank to and from the point thereof, and a spring for locking it in place against the end of the hook.
In the accompanying drawings, Figure 1 is a sideview of the hook,partly in section,show ing the position of the keeper when closed against the end of the hook. Fig. 2 is an edge p view of the hook and keeper from the front,
and Fig. 3 is a cross-section of Fig. 1 on line m m.
Similar letters of reference indicate corre'- sponding parts.
Referring to the drawings, A is the hook, B is the shank thereof, and C is the eye by which it is suspended from the rope or chain.
In the front edge ofthe shank is aslot, a, in which is set a spring, b, with its end next to the eye secured by'a pivot, c, passed through the shank. D is the keeper, with two rightangular arms, d d', the latter extending backward against the front edge ofthe shank, and having a rectangular socket, e, through which the shank is passed, while the former extends in the opposite direction in line with the end f of the hook. The end of arm d has a socket, g, which receives the pointed end of the hook, as clearlyr shown in Fig. 1.
The keeper slips freely back and forth on over the hook the keeper is then pushed down until its socketed en d bears against the pointed end of the hook, in which position it is retained by the spring b. When thus arranged. it will be impossible for the bucket to slip from the hook. I
Iam aware that it is not new to use a sliding spring-tongue having its end notched to engage acorresponding notch in the hook; but
A safety-hook composed of the hook A, with shank B, the eye C, and the sliding keeper D, and having the spring b fastened at-one end to the upper side of its shank extended in groove a and adapted to rise behind the slide and lock it, as described. l
' HENRY BLAKEMAN. Witnesses:
M. E. GULLEN, TEoMAs J. LOWRY.
US219677D Improvement in safety-hooks Expired - Lifetime US219677A (en)

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US219677A true US219677A (en) 1879-09-16

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US219677D Expired - Lifetime US219677A (en) Improvement in safety-hooks

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833017A (en) * 1956-04-03 1958-05-06 Victor L Patton Hook guard
WO2010130431A1 (en) * 2009-05-13 2010-11-18 Enrico Teruzzi Mooring device for boats
NO342099B1 (en) * 2015-11-12 2018-03-26 Subsea Toolpool Nord As Locking device for a hook

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2833017A (en) * 1956-04-03 1958-05-06 Victor L Patton Hook guard
WO2010130431A1 (en) * 2009-05-13 2010-11-18 Enrico Teruzzi Mooring device for boats
NO342099B1 (en) * 2015-11-12 2018-03-26 Subsea Toolpool Nord As Locking device for a hook
US10427917B2 (en) 2015-11-12 2019-10-01 Subsea Toolpool Nord As Means concerning hook

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