US1712870A

US1712870A - Revolving grapple

Info

Publication number: US1712870A
Application number: US168155A
Authority: US
Inventors: Daniel W Coe
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-02-14
Filing date: 1927-02-14
Publication date: 1929-05-14
Anticipated expiration: 1946-05-14

Description

May 14, 1929. D. w. COE

REVOLVING GRAPPLE Fil 14, 1927 2 Shee.ts-Sheet 1N VENTOR DANIELW. coE

- ATTORNEYS D. W. COE

May 14, 1929.

REVOLVI NG GRAPPLE Filed Feb. 14,. 1927 2 Sheets-Sheet 2 INVEN TOR DAN] ELJM CO E BY m z AI TOR/N171;

patented May 14, 1929.

STATES DANIELW. GOE, F MONTREAL, QUEBEC, CANADA.

REVOLVING GBAPPLE.

application filed February 14, 1927. Serial No. 168,155.

This invention relates to improvements in grapples and more particularly to a type of revolving grapple adapted for use in loading pulp wood from a wet storage or concentrating basin on to vessels or carriers.

The principal object of the invention is to provide a device which will facilitate the loading of the vessels by handling the pulp wood in bulk, that is in quantities of approio imately a cord, more or less, instead of handling the wood by individual pieces.

Another object is to provide a grap iile which will, in lifting the pulp wood, tend to arrange same so that it may be conveniently stacked away in the vessels.

i iccording to my invention, it provide a grapple of cradle form suspended from an equalizer or walking beam, the ends of which are adjustably suspended and controlled by a hoisting unit. The grapple is revolved by the movement of the walking beam about its central pivot. The structure is adapted to be lowered into a wet basin with its open end facing downwardly. The weight of the grap; plc is sufficient to displace a concentrated body of wood floating in the basin and to sink below same. The grapple is then turned with itsopen end facing upward, so that when the grapple is hoisted, it will trap a quantity of 30 wood, which is lifted in bulk and transferred to the vessel.

lin the drawings which illustrate one form of my invention;

Figure 1 is a side elevation of my improved revolving grapple.

Figure 2 is an end view of the device shown in Figure 1, with the grapple in the lowering position.

Figure 3 is an end elevation of the demos shown in Figure l, with the grapple in the hoisting position, with the pulp wood held therein.

Figure t is a plan view of the grapple.

Figure 5 is an end view of same.

Referring more particularly to the drawings, 11 designates the grapple of cradle or trough form, which consists of two

end plates

12 and 13, and a plurality of intermedlate bent bars l l, spaced from one another and mounted on belts or round bars 15 which pass through said bars M and the end plates 12 and i8. Secured to or formed integral with the end plates are the trunnions 16, to which are secured the grapple turning or revolving pulleys 17. These pulleys may be cast integrai with the end plates. The trunnlons are rotatably mounted in suitable bearings 18, formed in the grapple supporting frame 19, which extends from end to end of the grapple. Projecting upwardly from the portion of the frame 19, is the walking or equalizing beam pivot bearing plates 21 The equali/i 111g beam 2-2 is pivotally mounted between the plates 21 and on the pin 23 passing therethrough. Pivotally secured to pins 24, at each end oi the beam 22, are the links 25, and between each pair of links are mounted the hoisting pulleys 26. The hoisting ropes 27 and 28 pass around the underside of the pulleys and over the

pulleys

29 and 30, respec tively, to a hoisting unit of any of the wellknown types. Projecting outwardly from one side of the frame and directly below one end of the equalizer beam is the pin or projection 81, and rotatably mounted on said pin are the

pulleys

32 and 33. Projecting outwardly from the other side of the frame and directly below the other end of the equalizer beam, is the pin 34, and rotatably mounted on the pin are the

pulleys

35 and 36. Passing through the ends of the frame are the

pulley supporting pins

37 and 38. ltotatably mounted on the pins 37, are the

pulleys

39 and 40, one on each side of the frame, and rotatably mounted on the pin 38 are the pulleys ll and 42. Four ropes A, B, C, and D are used for revolving the grapple. Hope A is anchored at one en d 4:3 to the equalizer beam and pass ing under pulley 32 and over pulley 39, is anchored in any suitable manner to the pulley 1'7. Rope B anchored at one end to the equalizer beam and passes under pulley 33, over pulley ll, and is anchored to the periphery of pulley ll. ltope C is anchored to the other end of the equaliser beam and passes under pulley 35, over pulley 4L2, and is an chored to pulley 17.

Hope I) is anchored to the same end of the beam as rope G and passes under pulley 36, over pulley l0, and is anchored to the pulley 17. Suitable rope guards may be placed around or in proximity to the edges of all pulleys. The bars 14 are so positioned that their edges are brought in contact with the load.

In operation the grapple is lowered with its open end facing downwardly into a wet basin in which pulp wood logs have been stored in concentrated form. The edges of the grapple displace the logs and the weight of the grapple is such that it sinks below the lowermost row of logs. The grapple is then turned under the water and is hoisted, trapping a number of logs within the grapple, the sides of which are curved to cause the logs to roll toward the bucket and arrange themselves with their longitudinal axes parallel to each other and with the sides of the grapple. It will be seen that when the logs are discharged from the grapple they are in a semi-arranged condition, which facilitates the piling of the logs by manual labour. The turning of the grapple is accomplished by moving the equalizer beam from the position shown in full lines, to that shown in dotted lines, or viee-versa as shown in Figure 1, and said beam is moved by the movement of the hoisting ropes. Ropes C and D pull the grapple in one direction, and ropes A and B pull it in the other direction, when turning or righting the grapple.

The device is very simple in operation and provides a simple and easily operated device which will facilitate the loading and stacking of pulp wood logs.

Having thus described my invention, what I claim is 1. In a grapple, a load carrying element of substantially U-form with closed ends, and means formed in the side for drainage, trunnions formed in the ends of said element, pulleys mounted at the ends of the said element and adapted to rotate therewith, a frame having bearings for rotatably supporting the trunnions, bearing projections extending upwardly from the frame, an equalizer beam rotatably mounted on the bearing projections, and ropes secured to the beam and passing over suitable guide pulleys and secured to the first mentioned pulleys so that movement of the beam rotates the load carrying element.

2; In a device of the character described, the combination of a frame, a bucket rotatably carried thereby, a walking beam intermediately pivoted to said frame, means connected to the opposite ends of said beam and operable to swing the beam in either direction about its pivotal axis, and connections between each end of the beam and the bucket arranged to rotate the bucket when swinging movement is imparted to the beam.

3. A device of the character described, comprising a frame, a bucket having terminal trunnions rotatably mounted in said frame, a walking beam intermediately pivoted to said frame, pulleys carried by said trunnions and cable connections between said pulleys and the ends of the beam designed to rotate the bucket when swinging nmvement is imparted to the beam.

4:. In a device of the character described, the combination of a frame, a bucket rotatably mounted therein, a w: lking beam intermediately pivoted to the frame, cable connections between said bucket and walking beams arranged to rotate the bucket when swinging movement is imparted to the beam, pulleys carried by opposite ends of said beam and beam operating cables trained around said pulleys and operable to impart swinging movement to the beam.

5. In a device of the character described the combination of a frame, a bucket rotatably mounted in said frame, pulleys tixed to the bucket to rotate therewith, a walking beam intermediately pivoted to the frame. a pair of cables connected between each end of the walking beam and said pulleys, said cables being trained around suitable guide sheaves carried by the frame and thereby arranged to impart turning movement to the bucket when the beam is swung about its pivotal axis and means for imparting swinging movement to said beam.

In witness whereof, I have hereunto set my hand.

DANIEL W. CUE.