US241818A - Windlass for vessels of navigation - Google Patents

Description

(No Model.)

G MOULTON, Jr Windlass for Vessels of Navigation. No. 241,818.

Patented May 24,1881.

UNITED STATES PATENT OFFICE.

GEoEGE MoULToN, Jia., oE BATH, MAiNE.

WINDLASS FOR VESSELS OF NAVIGATION.

SPECIFICATION formingpart of Letters Patent No. 241,818, dated May 24, 1881.

Application filed April 16, 1881.

To all whom it may concern:

Be it known that I, GEORGE MoUL'roN, Jr., of Bath, of the county of Sagadahoc and State of Maine, have invented a new and useful Improvement in Windlasses for Vessels of Navigation; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure 1 is a side elevation, and Fig. 2 a transverse section, and Fig. 3 a longitudinal section, of a windlass provided with my invention. Fig. 4 is a side view of one of its bevelgears, with its pawls and ratchet. Fig. 5 is a top view, and Fig. 6 a side elevation, of one ofthe locking-bolts and its actuator, to be hereinafter explained.

The nature of my invention is duly set forth in the claims herewith presented.

In the said drawings, A A' denote two windlass wild-cats, fixed on two separate horizontal shafts, HH', each wild-cat havin g combined with it and the auxiliary shaft L like machinery, to be described. rIo each wild-cat is a friction-drum, I, carrying a friction-strap, K, as in other windlasses, such drum having within it, and to open on its inner side, a cylindrical chamber, a., to receive an internal gear, B, arranged within 'it in manner as shown in Figs. 2 and 3. The drum I has notches b on its inner periphery, to engage with a series of slidebolts,E, cach of which is adapted to slide rectilinearly and radially in the gear-that is, in a suitable guide, groove, or recesses made in it. Each of these bolts has a stud, c, projecting from it, and provided with a friction-roller, d, such roller being placed within one of the eccentric or oblique slots e of the actuator F. The said actuator is a wheel supported by and turning freely upon its shaft E or H', such wheel, at its periphery, being furnished with a series of radial recesses, f, to receive a bar or handspike for revolving the actuator, as occasion may require, to cause the series of bolts to be thrown either into or out of the notches b, such actuator, bolts, and notches being to effect the engagement of the gear B with the next adjacent wild-cat, or the disengagement of the said wild-cat and gears, as circu nistances may require.

(No model.)

Within an'd to engage with the internal gear, B, of each of the wild-cats A A there is arranged a spur-pinion, G, which is keyed to and carried by an auxiliary horizontal shaft, L, placed above the shafts H H of the two wild-cats.

Adapted to revolve on the shaft L are two bevel-gears, O C', which engage, as shown, with two connected bevel-gears, M N, the gear M having a diameter less than that of the gear N, and both of such connected gears being fixed on a vertical driving-shaft, O, arranged as represented in Fig. 1.

Ooncentrically within each of the gears C C is one of two ratchet-wheels, D, which are arranged on and keyed to the shaft L. Each of the gears O O is provided with one or more pawls, p, pivoted to it, and to engage with its ratchet-wheel, as shown in Fig. 4.

When the shaft O is revolved in either direction the gears O C will be revolved simultaneously in opposite directions, their pawls and ratchet-wheels being so made and applied that while the said gears C C are being so revolved one of them shall be in engagement with the shaft and the other be turning on and rectilinearly to it. Thus by revolving the shaft O one way the bevel-gears N and C will be caused to aid in effecting the revolution of the shaft L, the gear C at such time revolving loosely upon the shaft L. By revolving the shaft O in the opposite direction the gears M and C will aid in revolving the shaft L, the gear G at the time turning freely on the shaft and operating in no respect to turn it.

The gears C and N being equal, or nearly equal, in size, and the gear M having a diameter much less than that of either of the gears N and O', it follows that when the gear C is in engagement with the shaft L an expenditure of much less power will be required to revolve the shaft than is the case when the wheel G is in engagement with the said shaft.

It will thus be seen that by turning the shaft O one way the power to operate the wild-cat will be able to overcome a greater resistance than when the shaft is revolved the opposite way.

What l claim as my invention is as follows,

viz:

IOO

1. The slotted and recessed rotary actuator bolts E, notched wheels I, and the two wildxo F and its bolt or bolts E, arranged and comcats A A and their shafts H H', all conbined substantially as set forth, with the shaft structed and adapted substantially in manner H', internal gear, B, and notched Wheel I of and to operate as set forth.

the Wildcat A.

D 2. The combination ofthe shaft O, connected GEORGE MOULTON JR' driving beveled gears M and N, beveled gears Witnesses: C C', ratchet-Wheels D,pawlsp, auxiliary shaft R. H. EDDY, L, pinions- G, internal gears, B, actuators F, S. N. PIPER.

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