US1446278A

US1446278A - Hoisting gear

Info

Publication number: US1446278A
Application number: US471454A
Authority: US
Inventors: Gustav A Swenson
Original assignee: Individual
Current assignee: Individual
Priority date: 1921-05-21
Filing date: 1921-05-21
Publication date: 1923-02-20
Anticipated expiration: 1940-02-20

Description

Patented l-Feb. 29, i923.

iaiazis GUsTAv a. Swenson; or BROOKLYN, niiwrorinf To all 'whom may conoci-arf y y i.

Be it known thatl, GUsrAv A. Swanson,

a subject of the Kingof Sweden, residing at Brooklyn, in theicounty of Kingsand State of New York, have invented certain new.- and useful improvements inHoisting Gears, f

this general purpose have been open `to thel general and serious objectionv that they have not only been di'liicult to inanipulate,fbut,-

in' addition, theyf 'have notbeen" so constructed as to f ao'rd the necessary security against the falling of articles from the hoist with the kresulting, destructionof rgoods or vdanger to the attendants.

lt is thevgeneral object of this invention to provide a hoist or sling` which will `loe.` free from the objections referred to, which can be easily and expeditiously manipulated either in placing the device in position on a package preparatory to hoisting, yor in releasing` the devicefollowing the'hoisting operation, and which will securely hold the article "in any ordinary mishap, 'such as striking theedge of a hatch, or a part of the structure on 'a dock or ships deck.

The invention includes a pair or set of rigichendless metal `lo'opmembers formed for ready grappling engagement with the opposite reduced ends of a barrel, the loop members being so fitted to the barrel as to prevent the enlarged mid-portion of the barrel from slipping therethrough. The invention also includes the use of a flexible chain or rope attached to the rigid barrelgrappling loop members by being passed throuoh eyes or reduced loops formed integral y with the grappling members. Other features of the invention will be hereinafter referred to.

In the drawing in which a preferred embodiment of the invention is selected for illustration,

Figure l is a view in side elevation of a barrel hoist including the l invention and o showing a barrel held in place therein.

Figure 2 is a view similar tol Figure l showing the hoist disconnected from the barrel.

Figure 3 is a face View of a barrel-grapn Appucatimieied Mey v21,

' vention.

1pling loop membertforming part of the in` r Referring toy the drawing, ka barrel sling or hoist is shown which `is made up of three main parts. A` exible` loop l formed of chain or rope cof-any| suitable length and adapted to be engaged by the hool; 2 forming the terminal lof a rope or'fall suspended from the hoisting arm ofa crane orderrick `in an obvious manner(` Ink order to` lift or hoist `a package such-as `a barrel 3 fthe ieXible loop lis providedywith a pair or set of barrel-grappling rings or loops 4 each formed of a single endlessgpiece of rigid `metal, such as wroughtiron orsteel.` The lbarrehgrappling loopv members 4 are given afslightly: ,curvedl formationas seen inside viewy as will be clear` from t the Idrawingin order to., thereby, obtain `a `formation of vthe loop members whichmwill ,facilitate the expeditious attachingof the loop members in ygrappling relation tothe opposite reduced ends ofl a barrel or to as quickly .disassemble the loops `from -their barrelTgrappling position. n V. 1 o u In Order to facilitate Athe.` attaching ofthe rigid loop members 4 to thel flexible ring or loop l the loops'4 are provided with l,relatively small secondary loops or eye members 5 which are formed by bending two portions ofthelloopfrinto contact with each "other and welding or otherwise L attaching thennfogether atthe points 6.r f

Theielatively small Veye members 5 n'ot only form loops through which the rope or chain l can be passed in a permanently connected relation thereto, but the eye members 5 of the loops 4 additionally provide what may be termed handle members by means of which the loops 4 can be readily manipulated by an operator and put in place on abarrel which it is desired to hoist. By seizing each one of the loops 4 at the handle portion 5 the operator can in a single operation place both loops over the opposite ends of the barrelwith a minimum of exertion and with a very slight expenditure of time and energy. lt will be seen that by the use of the rigid barrel-engaging loops 4 the loss of time which usually exists in the manipulation of the ordinary rope tackle is wholly done away with and the handling of barrels which must be subjected to a` hoisting operation is correspondingly facilitated.

Not only is time ordinarily required in the manipulation :of barrelrhoisting tackle greatly Veutv down by the use of the rigid loop members 4 in conjunction with the permanently attached exible chain or rope 1 but the likelihood or danger of the displacement otty a barrel from the grappling members during the progress of the hoisting operation is greatly reduced or wholly overcome. In other words, where the contact `oa barrel or package with the edge `of a hatchway or the, striking of ltherbarrel against a partoi' afships superstructure in lifting barrels into or out of the ships hold, with the consequentjdropping of the barrel from its suspended position, and which in prior hoisting practicel is a matter of frequent occurrence, is wholly obx-'iatedin pernxforming al hoisting operation with thehoisting or lifting ysling herein described. s The v reason forythis isthat the endless or un- ','broken rigid loop members t haveno separable ends which are likely'to 'be opened fin experiencing the shock or impact cti striking the' contained barrell against a rigid part, nor will' the pre-formed rigid loop members lwhich are fitted to the diameter of the reduced ends. ofthe barrel allow the barrel to slip througheitlher'loop and'to vfall fromits place therein.. It will thus be seen that I have provided a barrel sling or yhoist which not only can be manipulated with a considerable" saving of time or work but by the use of which the factor ofnsafety present in the operation of the hoisting mechanism 1s greatly increased.V Whatlclaimis: e t 15A barrel hoisting device comprising a filexible supporting' loop formed for engagement'by the lifting hook of a crane, and a pair of rigid endless loop membersV formed for grappling engagement y,with the opposite ends of a barrel, portions of said rigid loop members being attached together to provide eyelet extension membersA through whichv said flexible supporting loop is threaded for permanent connection therewith. v.

2. A barrel hoisting device comprising a .flexible supporting loop formed for engage- -ment by the lifting hook of a crane, and a `pairof rigid endless loop members Jtormed of rod shaped material for `grappling engagement with the opposite reduced ends of a barrel, portions of said rigidloop members being attached togetherto provide eyelet extension and handle members formedy integrally with said loop members through which saidv flexible supporting loop is threaded for permanent connection` therewith, and said rigid loop members having a less diameter than the enlarged mid-pori tion of the barrel.

3. A barrel hoisting device comprising a supportingloop formed for engagement by the lifting hook of a crane, and a pair of rigid endless loop members formed for grapypling engagement with the opposite ends of operable handle members for said grapplingy loops.` y f 4. A barrel grappling device comprising a rigid metal loop formed lof round rod and adapted to be place-d over the reduced end of a barrel but having a-less diameter than the enlarged mid-portion of the barrel, and a combinedk eye and handle member formed integrally with said loop.

GUSTAV A. SWENSON.