US2792187A - Hoist drum rotating and locking device - Google Patents

Description

y 4, 1957 E. J. ORTlZ HOIST DRUM ROTATING AND LOCKING DEVICE Filed July 15, 1955 INVENTOR. f/qlvfvz' dare/ A 0K 7'/Z AT TORNEY HOIST DRUM ROTATING AND LOCKING DEVICE Ernest Joseph Ortiz, Jamesburg, N. J.

Application July 13, 1953, Serial No. 367,397

1 Claim. (Cl. 242-106) This invention relates to improvements in shipboard aerials, and it is the object of the invention to provide a ship-board aerial system which will greatly simplify the work of elevating, hoisting or lowering aerials on shipboard.

The operation of elevating or lowering a shipboard aerial is an extremely difficult one, particularly when adverse weather conditions are encountered.

The present invention is designed to reduce the amount of exertion required for such operations to a minimum of the effort heretofore required, and to further provide for a construction which is relatively sturdy, durable and positive in operation.

The structure of this invention allows the user to attain complete control of the aerial during the hoisting and lowering thereof, and provides for automatically locking the same at any selected position.

These and other advantageous objects, which will appear from the drawings and from the description hereinafter, are accomplished by the structure of my invention, of which an embodiment is illustrated in the drawings. It will be apparent, from a consideration of said drawings and the following description, that the invention may be embodied in other forms suggested thereby, and such other forms as come within the scope of the appended claim are to be considered within the scope and purview of the instant invention.

In the drawings:

Fig. 1 is a fragmentary elevational view of a shipboard aerial system embodying the invention,

Fig. 2 is an enlarged fragmentary horizontal sectional view, taken on line 22 of Fig. 1,

Fig. 3 is a vertical elevational view, taken on line 33 of Fig. 2,

Fig. 4 is a perspective View of a bracket unit and associated parts embodying the invention, and

Fig. 5 is an enlarged, fragmentary, elevational view of a means for securing the ends of the lines pursuant to the invention.

As shown in the drawings, the shipboard aerial system of this invention is adapted for use in connection with two spaced vertical masts 10, 11, on shipboard 12. A pair of open brackets 13, 13 is secured to said masts and directed toward each other. The parts associated with the mast 11 are, pursuant to the invention, preferably duplicate parts of those shown in connection with the mast 10. Therefore, the following description of one will sufiice for both. A drum 13 may be secured to the mast 10, as, for example, by welding the same thereto, as noted at 14 (Fig. 2), or in any other manner. Drum 15 is rotatably mounted in the bracket 13 as shown at 16. A handle member 17 is keyed to the axis of the drum, preferably, as shown in Figs. 3 and 4, by providing a rod 18 fixed to the, axis of the drum and normally disposing the handle 17 well beyond said axis and directed away from the drum, to facilitate actuation.

United States Patent The handle 17 is preferably connected to the free end of rod 18 by hinge means 19. Thus it will be apparent that by disposing the handle 17 in an outwardly directed position relative to the drum, as shown in Fig. 4, the drum may be conveniently rotated, while, by pivoting the handle 17 into a position from its normal operative position (as shown in dotted lines in Fig. 3), the parts may be automatically locked. It will be apparent that any tendency to rotate the drum while the handle is in its inward position (dotted line position of Fig. 3) will cause the handle to abut the bracket 13, precluding free rotation of the drum. This is an important safety factor which will preclude the movement of the aerial from any position of adjustment. A pair of pulleys 25, 25 is secured to the masts 1G, 11, at points spaced well above the brackets 13, 13', and the aerial 26 is secured at its ends to lines 27, 2'7, entrained over said pulleys 25, 25, and over the drums positioned in the brackets 13, 13. A take-up and tensioning means 28, 29 connects the ends of the lines 27, 27.

In initially assembling the shipboard aerial pursuant to the invention, the pulley 25 and bracket 13 are connected to the mast; one end of the line 27 is attached to the turnbuckle 28, passed through the pulley 25 at the top of the mast and then down to the drum 15; it is entrained several times circumferentially of the drum, and then the free ends of the lines are connected to the spring 29 and turnbuckle 28. The turnbuckle 28 will permit taking up of any slack of the line from time to time; entraining of the line around the drum will take up a substantial amount of any stress or strain present. The aerial may be fastened to the line at any points. The leverage attained pursuant to the structure of this invention in the hoisting or lowering operation is such that the operator has complete control at all times. The structure may be made to accommodate any size of line. The term aerial, as used herein, shall be deemed to include a horizontal line used for the reception of radio or other waves, which must be elevated and lowered periodically.

While the aerial system herein described is primarily designed for shipboard use, it is adapted to other uses wherein it is secured to spaced vertical members. The terms shipboard aerial and vertical masts on shipboard" and similar terms, as used herein, shall be deemed to include such other uses.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

A structure for moving an object vertically comprising an elongated post adapted to be secured at its lower end to a supporting surface, a bracket secured to said post adjacent the lower end of the post, said bracket comprising a pair of spaced, parallel leg members secured at one end to the post and extending therefrom at right angles to the longitudinal axis of the post, a shaft rotatably journalled in the leg members, a drum keyed to said shaft and disposed intermediate the leg members so that an object may be secured to a line entrained over the bracket drum and thereby moved vertically, said drum being of greater diameter than the width of the leg members so as to be medially intersected thereby, said shaft having an end extended through one of said leg members, a first rod keyed at one end to the extended end of the shaft of substantially greater length than the diameter of the drum, for rotation in a plane at right angles to the longitudinal axis of the drum shaft, a second rod, a handle secured to the second rod, means pivotally connecting the second rod to the other end of said first rod on an axis disposed at right angles to and spaced from the longitudinal axis of. said drum shaft, so that said handle may be positioned to extend from the rod outwardly of the bracket and drum to rotate the ice 3 drum, or for selective rotation to a position inwardly of the bracket and drum so that on rotation of the drum, and, thereby, the first and second rods with the handle in the last mentioned position, said handle will be rotated against the post precluding further rotation of the drum. 5

References Cited in the file of this patent UNITED STATES PATENTS 1,558,114 Morrison Oct. 20, 1925 10

Images