US2687798A - Ship loading and trimming machine - Google Patents

Description

Aug. 31, 1954 F. x. LANDREY 2,687,798 SHIP LOADING AND TRIMMING MACHINE Filed Dec. 7. 1951 3 Sheets-Sheet 1 IN VEN TOR. Mag X. %424 1 @020 fi hwnm 1954 F. x. LANDREY 2,687,798

SHIP LOADING AND TRIMMING MACHINE Filed Dec. 7, 1951 3 SheetsSheet 2 IN V EN TOR.

5 /141201) X. az'b/izahey,

31, 1954 F. 'x-. LANDREY 2,687,798

SHIP LOADING AND TRIMMING MACHINE Filed Dec. 7. 1951 3 Sheets-Sheet 3 INVENTOR. mmx Y Patented Aug. 31, 1954 SHIP LOADING AND TRIMMING MACHINE Francis X. Landrey,

South Portland, Maine, as-

signor to Stephens-Adamson Mfg. 00., a corporation of Illinois 1 1 Application December 7, 1951, Serial No. 260,475

This invention relates to means for loading ships with pulverulent material, and has for its principal object to provide a simple machine that can be supported by the fall rope of a derrick when in use, and can be readilytransported from pier to pier as the shiploading may require.

Generally speaking, this is accomplished by mounting a motor driven thrower at the delivery end of a chute and providing the assembly with a single point of support for connection with the fall rope of the derrick.

Further objects and advantages of the invention will appear as the disclosure proceeds and the description is read in connection with the accompanying drawings, in which:

Fig. 1 is a side elevation of the machine;

3 Claims. (Cl. 198--128) Fig. 2 is an end elevation looking from the left in Fig. 1;

Fig. 3 is an end elevation looking from the right in Fig. 1;

Fig. 4 is a plan view of the chute; and V Fig. 5 is a diagram showing the machine in different positions in a ship.

In these drawings, the thrower is indicated generally by the reference numeral ID, the chute or feed hopper by the reference numeral 1 l, and the main frame by which the two are assembled together by the reference numeral l 2.

The thrower includes a belt I 3 running over a driven pulley l4 and an idler pulley IS. The lower run of the belt is substantially straight, as shown. The upper run is forced into a concavity [6 by two narrow wheels or pulleys l1 spaced apart to provide a passageway l8 for the material being thrown.

The pulley I4 is driven by a motor l9 through a V-belt drive 2|].

The thrower apparatus is all assembled on a thrower frame 2|, and it is provided with an adjustable sub-frame 22 for the idler pulley [5 by which the angle of the delivery may be varied.

The chute or feed hopper l l includes a conical or generally funnel-shaped receiving portion 23 which blends into a rectangular delivery portion 24 adapted to deliver the material to be loaded onto the concavity 16 in a position to preserve the falling speed of that material and thus facilitate the throwing.

The chute and the thrower are mounted in and connected by the main frame l2, which is fabricated from commercial sections and forms a base on which the machine may stand upright, as shown in Figs. 1, 2, and 3, or on which it may lie on its side at the left in Fig. 1.

The chute is provided with a transversely arranged bar or beam 25 extending across the receiving end of the funnel and provided with an eye 26 at the mid portion adapted to receive the hook of a fall rope 21 for supporting and handling the machine in use.

The chute also is provided with an eye 28 to receive the hook of the same-or another fall rope for turning the machine on its side for transport or standing it up in preparation for use.

In Fig. 5, the solid line position shows the machine in the lower portion of the hold of a ship 29, which is adjacent to a pier equipped with material handling conveyors, etc., including a spout 30. It will often be convenient to introduce an auxiliary chute 3i made fast to the fall rope 21 and having its lower end resting on the bar 25, or otherwise supported in position to deliver into the chute ll.

As the ship is loaded, the machine will be raised, and will reach a position in which the auxiliary chute 3| may be dispensed with, as indicated in dotted lines in Fig. 5.

The thrower may beof various forms, but preferably such as disclosed in the patents to Sinden No. 2,125,088, July 26, 1938, and 2,467,634, April 19, 1949, the disclosures of which patents are hereby incorporated by reference.

In one form that has been found satisfactory, the machine is driven by a 15 horsepower motor with 3600 R. P. M. The frame has a base approximately 4' 3" by 3' 5%", and the overall height is 12. The thrower has a delivery speed of 2800 feet per minute, and may be adjusted between 10 and 40'degrees.

In operation, the machine is picked up by the fall rope of a derrick and lowered into the hatch of a ship substantially as indicated in Fig. 5, and the thrower set in operation. The bulk material delivered by the spout will then be given a suitable trajectory of delivery into the hold for trimming the ship, and the machine may be rotated about the axis of the fall rope 21 to direct the thrower for placing and distributing the material in the hold. It can be rotated through 360 degrees without interfering with the normal operation.

In ships having a lengthwise dividing partition,

it can be rotated through degrees at each side of the partition. The single point of support for the assembly on the fall rope is preferably approximately in line with the center of gravity, though that can be varied to offset the reaction of the thrower.

Heretofore, 40 men have been a normal complement for loading and trimming a grain ship, such as a Victory or Liberty ship, whereas with a machine embodying this invention eight men with two in the hold for an hour at a time will load the same ship with the same amount in onehalf the time, and the working conditions are very much better.

I claim:

1. In a machine for loading bulk material into the hold of a ship, a thrower including a frame, pulleys journaled on horizontal axes fixed in the frame, a conveyor belt trained around said pul" leys, a chute adapted to receive the material to be loaded and deliver it to the belt, and a motor driving the belt for projecting said clelivered material in the form of a stream in a single direction, means supporting the thrower frame rigidly on and below the chute, and a fastening element mounted on the chute in substantially the axis thereof for attachment to a single line fall rope supporting the machine whereby the machine may be hung from a derrick and rotated manually about the axis of the fall rope by an operator grasping the frame of the thrower.

2. The combination claimed in claim 1, in which the upper portion of the chute is provided with a transverse bar and the fastening element is an eye upstanding from said bar.

3. The combination claimed in claim 1,. including an auxiliary chute supported in position to deliver to the first named chute and having connections aligned along its wall for securing it to the fall rope.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 1,331,020 MacLennan Feb. 17, 1920 1,389,402 Vogel Aug. 30, 1921 2,205,155 Reed June 18, 1940 2,318,881 Mundy' May 11, 1943 2,467,634 Sinden Apr. 19, 1949 v FOREIGN PATENTS Number Country Date 658,401 France June 4, 1929

Images