US1521230A - Cargo hook - Google Patents

Description

Dec. 2 1521230 L. COT

CARGO HOOK Filed Feb. 26, 1923 I I l l INVENTOR Lam's 6'0! ATTORNEY Patented Dec. 30, 1924.

rrss V LOUIS CQT, OF BROOKLYN, NEW YORK.

CARGO HOOK.

Application filed February 26, 1923.

To all 10. mm it may concern:

Be it known that I, Louis Cor, subject of Spain, and resident of 50 V Sackett Street, Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Cargo Hooks, of which the following is a specification.

This invention relates to hooks in general, and particularly to the kind employed for suspending cargo from derricks or other hoisting implements.

The main objects of the present invention is to provide a simple inexpensive and safe device, by means of which a load may be either transferred from one hoisting device to another or from a hoisting device to a place of repose and permitting therelease of the load by relaxing the cable by which the load is suspended and by reversing the position of my device; I

In order to better understand the working principle of my. device, it is necessary to refer to the similar device now in use and consisting mainly of gripping claws or U shaped hooks, which are adapted to suspend a load, and manually operable releasing means by way of which the suspension hooks may be opened, thus permitting the load to drop. The greater the load the harder it becomes to release such devices. Usually a line is attached to the release and the helper is to pull thereon until the device is opened. 7

Moreover most of the releasing devices keep the hooks closed only as long as the load is suspended from the latter, but in the event that the load would be transferred to another hoisting device it is hard to operate the release.

From the foregoing it will be evident that such devices are not only impractical but even dangerous in operation. My invention is designed to overcome the aforementioned disadvantage by employing an entirely new principle of operation.

The advantages of my device will be more fully apparent from the following description and accompanying drawings, forming part of this specification, but representing only one of the many possible embodiments of my device, and in which:

Figure 1 is the side elevation of my device partially in section, in closed position while suspending a load.

Figure 2 is a side elevation of my device Serial No. 621,346.

partially in section and showing it reversed in open condition.

Figure 3 is a partial end view seen from lines 33 of Figure 1.

Referring to the drawings numeral denotes the load suspension member. which is generally of a dog-like shape and provided with a depression 11 between. fingers 12 and 13.

Finger 12'is reduced at it upper portion as indicated at 14. The lower end of member 10 has a reduced extension 15, provided with an eye 16, which passes a pin 17 forming a hinged connection with locking memberlS. Locking member-18 is provided with a T-shaped gravity head 19 having a flute-like recess 20, adapted to register with the reduced extension 14 of the load suspension member 10. At the outer end of the head there are provided one or more guide apertures 21 and 22 the purpose of which will be explained later.

The leg 23 of the locking. member 18 is also'perforated at 24 and 25. At the lower end of the leg 23 there is provided a recess 26, in which freely swings extension of load suspension member 10. At the extreme end of leg 23 there is provided a rest or stop 27, which limits the outswing of member 10.

Finger 13 of member 10 provides a stop for the latter when bearing against leg 23 of member 18. Below finger 13 there maybe provided an eye or hook indicated at 28, for receiving a single flexible element i11- dicated at 29 and which is adapted to close and keep the two members in closed position when desired, but permitting an opening of the members when it is necessary. When such single flexible element 29 is employed it passes through aperture 2 1 of leg 23 and through aperture 2110 head 19. Instead of the single flexible member 29 there might be employed a double flexible element 30, in which case a fastening lug 31 provided in the body of member 10, is employed for attaching flexible element 30. In this case flexible element 30 passes through apertures 21 of the head 19 and 24 and of the leg 23, and back through aperture 22 of head 19. However, any other suitable arrangement of fastening the flexible element may be employed.

In Figure 1 my device is shown in closed position and suspended by means of flexible element29 and supporting a load indicated i r by the broken lines I. v

Assiimethat my device is now attached to a crane and the load I is held by convenient means Within hook-shaped depression, 11. Now the load may be transferred from one place to the other \VltllOLlt difiiculty and;

with absolute safety.

When now the suspension means-support ing the load is engaged by another hoisting device and pulled up in the direction shown in Fi ure 2 bv broken lines II while at the same time flexible element 29 is Slaekr-ned,

my device will be turned :to the 1)0Sli'l()1-1 ll1- dicated-in Figure 2. In this position the gravity head 19 drops down and disengages finger 12' of member 10, thereby opening; my ,deviceand releasing the suspension means of the load and permitting'the latter to be. now freely susprmded=by the other hoistlng device.

The same manner O'E'OIJQl'fltlOIl applies for instance, in the case where cargo is to belifted into the hull oil a ship, withthe exception that a second hoisting device-is not employed, but instead a helper pulls the sling suspending the cargo to one I side-untilthe reversal of my device has taken place and member 10 released. 7

lt is evident that while I have showna specific form of my invention in the-V-draw-- ings,, be it understoodthat var-ions design-s maybe made, based on the same principle and W1thout-departmg :l'ronrthe broad scope of niyidea', for which I claim;

1. A cargo hook,comprising a load receiving member, a lock-mgmember and means for keeping the former member in looking enga ement with the locking member hen the device is in one positiomand permitting the release of said load receiving member position.

when the device is in another;

2. A cargo hook, comprising a load sup: pontinggnemheramravity ,operated locking member and" means; for keeping members in closed relation When desired.

3. Awcargo,hook comprising a load sup porting member, a gravity operated locking member, and flexible means for keeping said members in closedgrelation and; per initting.theirlopeninga vhen desired;

4-. A cargo hook, comprising a. loadsup- V V element, and means-providedin said flocking member for arl 1g. said-5 element;

(3;; In a cargohook, asload:suspending.

member, a-locking member, the; former hinged with the latter andiip rovlded Aflllll.

the ide.

means for receiving; flexible; element,- sa id locking 1 n-ember provided with g means for a flexibleeleIi-nent and a gra head a dapt editor-change the" position oi locking). member,

device, and-a fiezrib]eeleinentcnnectin g thetwo members and; adaptedif to" -eith.erz.'keep.i them; in interlocking position or per me their openingw-hgen-desired j 1 L" V Signed" at-Ne-W-York in thecountv-o5:- 'this 10th New York -ancl fitategof New-Y l, day of Febluary A; I?

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