US1719744A - andrade - Google Patents

Description

July 2,1929. c -D JR 1,719,744 I I WI NDLAS S Filed Oct. 7, 1927 2 Sheets-sheet l July 2, 1929. c, E, JR 1,719,744

- WINDLASS Filed Oct. 7, 1927 2 Sheets-Sheet 2 IN VEN TOR.

Patented July 2, 1929.

- T OFFEC E.

CIPBIANO ANDRADE, JR., 013 NEW YORK, N. Y.

WINDLASS.

Application filed. October 7, 1927. Serial No. 224,542.

one direction and not in the other handled by a flexible band.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which: r

Fig. 1 is a sectional side elevation of my device on the line 11 of Fig. 2; Fig. 2 is a downwardview of a portion of my device on the line 22 of Fig. 1 with a portion thereof in dotted lines; Fig. 3 is a sectional view of a portion of mydevice on the line 33-of Fig. 1; Fig. 4 is a side view of one of my rollers; Fig. 5 is an upward view of the part C thereof; and Fig. 6 is a downward view of the part D.

Similar letters and numerals refer to similar parts throughout the several views.

A is a canvas belting; A is an end part of A, and fastened to B by any mechanical means; A is the other end part of A and fastened to B by any mechanical means; B is a handle bar holder; B is another portion of B; B is the end of B which holds the end A of canvas belting A by any mechanical means; B is a handle bar; C is the circular sheave to hold rope; C is a flat upper circular surface of C to prevent B from moving upward; C are recesses 1n C to hold rollers R, each recess C holds a roller R, but in Figs. 1 and 5 the rollers are not s.l1own,.in order to make the other parts visible; C is a flat bottom circular surface of C; C are circular outer surfaces of C,

, adapted to hold end B either in locking or rotatable position; C is the inner circular surface of C; C is another circular outer surface of C, inward from both C4, adapted to hold A either in locking or rotatable posltion; C is a flat lower circular surface of C to prevent B from moving downward; D is a flat circular bed plate; D are recesses in D adapted to either hold or release rollers R; D is the lower surface of D 1) are screw holes. in D to hold screws K; E is an outer circular element, to hold C from moving up or sideways, but permitting it to rotate; and 13 are holes to hold screws throu 'h E, Dand the deck under thus holding and E in pasitien.

It will be understood that where my device is usedfor a linked chain, the usual whelps can be placed on the outer surface of circular sheave C to hold said linked chain, as shown for example in element U Fig. 1 of my issued Patent No. 970,597. Or if desired my device could be arranged to carry both a rope and a lmked chain on circular sheave C as is well known in the art.

The operation of my device is as follows: The function of my device is to rotate in one direction, but not in the other. For eX- ample the rotation can be clockwise. This clockwise rotation is accomplished by pulling the handle bar B clockwise, whereupon the two ends A and A of canvas belting A are brought closer together, which forces canvas belting A tightly against the surface 0 of circular sheave C, and at the same time it locks the end B of handle bar holder B against the two surfaces C of said circular sheave O, the result being that said circular sheave C is thus forced to rotate clockwise, and thus pull inward any rope or chain fastened to said circular sheave C. During this clockwise rotation of circular sheave C, it will be noted from Fig. 3, that the roller R which drops down from G into D works up on surface D, without any locking. But the moment that the handle bar B is started back anticlockwise, it puts the two ends A and A of canvas belting A further apart from each other, which permits canvas belting A to loosen from the surface C, and at the same time it releases the pressure of B against the two surfaces C", which permits the canvas belting A and the handle bar holder B to move back anticlockwise over the surfaces C and C". At the same time, it becomes impossible for the circular sheave C to move anticlockwise, because as shown in Fig. 3 hereof, the roller It becomes locked on the left hand side of D3 in recess D and also locked on the right hand side of recess C It will of course be understood that the function of canvas belting A and handle bar holder B could be alsosecured by eliminating the surfaces C and making surface G all the way from C to C in which case the same result would be had of bringing the two ends A and A closer together when handle bar holder B is moved clockwise, thus locking A the en 3".

It will be noted herein, that the use of the rollers R in all the recesses C of Fig. 5 here of, are very much simpler in construction than the pawls N with trunnions Z, which fit into outward holes in recesses K, see Figs. 4: and 6 of my said previous Patent 970,597.

It will be understood also that any me chanical equivalent of the canvas belting A could be used, for example instead of canvas, a flexible band or metal or any other mechani cal equivalent of element A herein could be used.

It will be understood that the handle bar holder B could be made integral with the handle bar B, which of course would be a mechanical equivalent of these parts. The only purpose of having these two parts B and B is forconvenience in taking out the long handle bar B when it is not in use, as is well known in the art. It will therefore be understood that in the claims herein the words handle bar will apply to the two connected parts B and B or to the mechanical equivalent thereof, of B and B being actually integral with one another.

It will furtherbe noted that elements C, C, C, C, A, A A B, B B and B could be placed at the top of circular sheave C, instead of at thebottom of circular sheave C, with exact-ly the samefunction as herein stated.

I claim:

1. In a Windlass; a circular sheave; a recess at the bottom of said circular sheave; a roller adapted to be lully contained in, or partly dropped down "from, said recess; a bed plate in contact with said circular, sheave, said circular sheave being rotatable over said. bed plate; ,and a recess at the upper surface of said'bed plate, said recess being adapted to lock said roller in one direction, and to let said roller move freely in the other direction.

2. In a Windlass; a circular sheave a flexible band on the outer surface of said circular sheave ;-a recess in 'said circular-sheave; a roller adapted 'to be fully contained in,or partly dropped down from said recess; a bed plate in contact with said circularsheave and rotatable therewith and a recess at the upper surface of said bed plate, said recess being adapted :to lock said roller in one direction, and to let said roller move freelyin the othc direction.

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