US1417222A - John abraham - Google Patents

Description

JJABRAHAM.

TOWING HOOK. APPLICATION FILED MAY 13, 1921.

Patented Ma 23, 1922.

STAT-ES "rear FFEQE.

JOHIN' ABRAHAM, OF VANCOUVER, BRITISH COLUMBIA, CANADA.

TOWING HOOK.

Applicationfiled May 13,

To all whom it may concern:

Be it known that I, JOHN ABRAHAM, a subject of the King of Great Britain, and a resident of the city of Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Towing Hooks, of which the following is a specification.

My invention relates to improvements 1n hooks, with particular reference to hooks used in towing or on the ends of lines used for fastening rafts or on any line which requires to be let go quickly or which is usually cut when dismantling the objects WlllCll the line binds, and the object of my inveni which the figure shows a perspectiveview of the hook.

The body or shank of the hook consists of a forked member indicated generally by the numeral 1 having two parallel side bars or forks 2 and 3 between the outer ends of which is pivoted on a bolt 4: a movablehook bill 5 of bell-crank formation Hie arms of which are designated bythe numerals 6 and '7, the arm 7 which is normally horizontal when the hook is locked being provided with an extension or finger 8 while the arm 6 is eyed at its outer end as at 9. The opposite ends of the bars 2 and 3 are joined and formed into a shackle end 10 to which the towing or other line may be secured and extending through the bars 2 and 3 adjacent the shackle end 10 are two bolts 11 and 12. A normally vertical arm 13 is pivotally mounted at its lower end'on bolt 11 while at its upper end it is provided with a link 14 bolt connected at both ends by bolts 15 and 16 to the arm 6 and arm 13 respectively, the bolt lo passing through the eye 9 of arm 6. At a suitable point in its length the arm 13 is provided with a notch 17 in which the finger 8 normally rests while piv- Specification of Letters Patent. Patgnted May 23, 1922.

1921. Serial No. 469,345.

otally connected to the arm at a point above its midheight is an arm or dog 18 having a notch 19 adjacent its lower end adapted to normally engage the bolt 12 and which dog.

is provided with a shackle 20 arranged on the side opposite to the notched side, to which shackle a tripping line may be attached, as explained later.

.The manner'in which the hook is used and operates is as follows, it being noted that the full line view shows the hook in the closed position while the dotted lines show it open. When closed the hook bill arm 7 lies horizontal with the finger 8 engaged in the notch 17 of the arm 13, which arm is in the vertical position andconnected to the hook hill 6 by the link 14, the dog 18 being then in position with its notch engaging the bolt 12, and

as the parts are thus rigidly connected to gether the hook is maintained closed. In the. event of its being desired, however, to let go a line which is connected to the hook, such as, for instance, a tow line passed over the hook bill 6, the bolt 15 is removed when, by pulling on a rope connected to the shackle 20 the dog 18 is pulled backwardly to free the notch 19 from the bolt 16 and at the same time the arm 13is also pulled backwardly to disengage the notch 17 and finger 8 so that the hook bill swings to the position shown by the dotted lines, thus opening the hook and letting go the line therefrom in a quick, safe, and simple manner.

Unit I claim as my invention is A hook comprising a shank formed of a pair of parallel side bars connected at one end to form. a shackle end, a bill pivotally mounted between the opposite ends of said bars having an arm lying normally therebetween, a normally vertical arm pivotally ,mounted between the bars adjacent the shackle end having a notch in which the end of the bill arm is normally engaged, an arm pivotally connected at one end to said vertical arm at a point above its midheight having 1ts lower end provided with a notch and disposed between the shank bars behind the vertical arm and a bolt extending through said bars with which the last mentioned notch is normally engaged.

Dated at Vancouver, B. (1., this28th day i of April,'1921. JOHN ABRAHAM.

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