USRE8001E - Improvement in power-capstans - Google Patents

Description

. 3 Sheets-Sheet. 2.. J. P. MANTON & G. H. REMINGTON.

- Assignors to the AMERICAN SHIP-WINDLASS C0.

7 8 s c e D d m e u SS m e R r e w 0 P INVENTORS.

WITNESS-ES.

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J. PfMANTON 8: G.. H. REMINGTON.

Assignors to the Ammuou SHIP-WINDLASS Co.

' v Power-Oapstan. No. 8,001. Reissued Dec. 18, 187?.

WITNESSES:- INVENTORS.

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JOSEPH P. MANTON AND GEORGE H. REMINGTON, OF PROVIDENOE, RHODE ISLAND, ASSIGNORS TO THE AMERICAN SHIP WINDLASS COMPANY.

IMPROVEMENT m POWERI-CAPSTANS.

tion to a. capstan or windl Specification forming part of Letters Patent No. 155,877, dated October 13,- 1874; Reissue No. 8,001, dated December 18, 1877; application filed September 17, 1877.

sponding parts.

elevation of ourimproved capstan, partly in view and partly in section, showing the relative positions of the engines A A, the worm C, the worm-gear D, the driving-head E, and their relation to the shaft G, as also the position of the capstan-head X, the

Figure 1 is an barrel Q, the wild-cat R, the friction-brake N,

'th the central shaft G. Fig. 2 is a horizontal section, showing the power-gear I in section, and the wild-cat B partly in view. Fig. 3 shows the arrangement of the engines, ,with the worm G, worm-gear D, and the drivinge head E, and their relation to the shaft G.

The object of the invention is to so construct a capstan or Windlass that the same can be worked by hand-power in the usual manner, and also driven by steam-power, which can be readily connected with or disconnected from the same.

'Our invention'consists,first,- in the applicaass of a worm and worm-gear, arranged so that the capstan or windlassmay be operated in the usual manner and with increased power through the worm and worm-gear.. f

It further consists in the application-of engine-power to a capstan or Windlass through a worm and worm-gear, arranged so that the engine power may be readily connected with and disconnected from the capstan or Windlass, and-the same be operated'by either the usual handt-apzwer or, the engine-power.

It consists in the peculiar combination and arrangement of the parts, so that by a simple manipulation the engine-power maybe applied to the barrel or wild-cat, or to both,

' barrel Q, fitting the and also, the compound gear may be readily applied to either, and so the power increased; that the whole may be operated by hand in the usual manner, and both by hand or engine power, in either direction.

In the drawings, X represents the capstanhead, furnished with socket-holes S for the in-' sertion of the capstan-bars. This capstan-head X is permanently keyed on the shaft G. Next to and below the capstanfhead is the capstanshaft G," but turning freely on the same. Below this is the wildcat R, which turns freely upon the sleeve Z, encompassing the shaft G,and -also turning freely on the same. To the upper end of the sleeve Z a disk-plate, Y, is secured, having locking-sockets corresponding with a lockingsocket in the capstan-barrel Q.

When,.now, the key-block L is placed into the locking-socket at the base of the barrgl, so as to engage in one of the sockets of the skplate Y, the sleeve Z and the capstan-barrel are firmly secured one to the other, and revolve together, but freely, around the shaft G.

Cast onto the lower end of the sleeve Z and forming part of the same is acircular diskplate, having a number of 'lockin g sockets,

some in the top part of the same, to receive the key-block M, and others in the periphery,

to correspond with the locking-socket L.

When, now, the locking-socket inthe base of the wildrcat R, the key-block L being still in place at the base of the barrel, it will be seen that, by means of the sleeve Z, the disk Y, and the key-blocks L and M, the capstanbarrel Q, the wild-cat B, and the sleeve Z are firmlysecured together, but are still free to revolve on the shaft G,

shaft, while both are under complete control of the friction-brake N, the brake-surface forming the lowerrim'of the wild-cat, surrounded by the friction-strap N, whichcan be operated by either 01: both of the two eccentric-levers O and handspikes P.

The toothed gear-wheel H is cast in one piece with the circular disk,'containinglocking-sockets corresponding with the lockingsocket L, and is firmly-keyed or secured to. the shaft G, and revolves with the same.

and not affected by 'the revolving of the capstan-head X or the I with the capstan-head X.

the capstan-bars in either direction, the whole will turn with the capstan-head. If, now, the

key-block L is removed, the barrel will be loose and turn fi'eely,while the wild-cat is still secured to, the shaft G, and will only turn If, however, instead of the key-block L the key-block M is removed, the barrel Q will remain firmly attached to the shaft G, and move with the same,

while the wild flleeve Z.

The base of the capstan consists of the circular plate marked in the drawing 0', which is firmly secured to the deck, and which forms the joiunal orbolster of the shaft G. This base-plate has a rim projecting above the deck, 'inwhich a locking-socket is made at K. Resting on this base-plate, and surrounding at B may freely revolve on the the shaft G, on which it turns freely, is the disk-plate W carrying the intermediate pinions' I, which are secured to said plate by studs, on which they turn, and gear into. the toothed pinion H, and also into the toothed rim H.

When, now, the key-block L is removed and placed in thejlocking-socket K, the disk-plate W is secured to the base-ring O, and cannot revolve around the shaft G or with the same. The toothed gear H, therefore, revolving with the shaft, turns. the intermediate pinions I on their studs, and they, in turning, engaging in: to the toothed rim H, turn the same; and

this being cast in one piece with the sleeve Z,

orfirmly secured to the same, turns the capstan-barrel and wild-cat both together, or either separate, as may be desired, with. increased power, at a slower speed than the capstanhcad, and in the opposite direction.

All the above changes and operations are described as being done by hand-power, and the use of the capstan-bars placed into the sockets S in the capstan-head X. The same changes and operations may also, and as efiiciently and more promptly, be performed by the application of engine-power, which we will now further describe.

A capstan and a Windlass difler mainly in the position of the main shaft G, which, in'a capstan, is vertical, andin a Windlass horizontal; and as in many cases where a windlass is used below the deck the power is cone municated through the capstan, we will describe the application of engine-power to a capstan.

The central shaft G extends below, the deck and rests in the step V. To this shaft and below the deck is firmly keyed the drivinghead E, in theperiphery of which a number of key-sockets are cast, as is shown in Fig. 3..

Surrounding this driving-head, and turning freely on the shaft G, is the worm-gear D, having key-sockets corresponding with the keysockets inthe driving-headE.

When, now, the key-block F is placed as shown, so asto fit into both the sockets of the worm-wheel D and driving-head E, the capstan can be worked by the engines A A, the connecting-rods of which are secured to the cranks -B B, and thus give rotary motion to the worm c, which engages into the worm-gear D, and so applies the power of the engines to the shaft G, and by this shaft, at the will of the operator, by simply inserting a key-block or removing one, all parts of the capstan can be driven bysteam-power; and this power can be readily connected or disconnected, whether the shaft G is in-a vertical position and forms the main shaft of a capstan, or in a horizontal position and forms the main shaft of a wind.- lass, and a capstan or Windlass can be driven in the usual manner by hand-power, and instantly converted into an engine-driven windlass or capstan.

Having thus described the relations of the erent parts of our improved power-capstan, we will now explain the manipulations re-' quired to perform all the different functions by en gine-power, premisin g. first that when the keyyblock F is in its place ourcapstan is a di-' rect engine-driven capstan, and when the keyblock Fis removed it is a hand-power capstan, all the change required being the replacing or removing of the key-block F. When a windlass is to be provided with this auxiliarypower the shaft G occupies a horizontal position, and the driving-head E is secured tothe same in the same manner as to the vertical shaft shown, and the worm-gear D is connected with or disconnected from the Windlass by the key-block F, or in any other manner, by which the engine-power is connected to or disconnected from the capstan or Windlass, so that the capstan or Windlass may be driven by hand-power, in the usual manner, or by engine-power through a worm and worm-gear.

.The advantage of connecting the engines with a capstan or Windlass are:

First. The means for driving, as also the means for connecting and disconnecting, the engines, are simple in construction, consist of few parts, able to exert great power, and withstand wear and tear and the severest strains.

Second. To secure economic results in an engine, high piston speed is required. As the screw and screw-gear are the simplest means to reduce speed and increase the power, theirapplication as an auxiliary to apply steam power to a capstan or Windlass arranged to be operated by other means becomes of great importance in ships. supplied with steampower.

When a chain is to be hauled in by the capstan at full speed, the same is laid around the wild-cat, the key-block K is placed into the key-socket L, the key-block L being removed. Now, start the engines, and the wildcat will haul the chain, and, if a double Windlass, pro

vided with two or more wild-cats, will haul in two or more chains either simultaneously or successively. If a rope is to be hauled,.the key-block L is replaced, and the place, the

barrel and wild-cat will move together, while both are controlled .by the friction-brake.

When the key-blocks M, K, and-F are removed, and the key-blocks capstan will be a simple hand-capstan, in which the capstan head and barrel revolve in either direction at the same speed. When, now, the key blockhf is inserted, we have a handcapstan, the barrel, wild-cat, and capstan-head revolving together.

If, now, thekey L is removed and into thekey-socket K, we have a hand-power capstan, the

barrel and wild-cat moving in a direction opposite to the direction of the capstan-head, slower but with increased power.

If, now, the key-block F is inserted, we have a direct engine-driven capstanjin which all the above changes can be efiected, and the capstan, under all these various conditions, driven by the engines A A; .aud when the shaft G is placed horizontally, a direct en'- gine-driven Windlass, in which the barrel or wildcat, one or more of them, are driven by the engines A A through the worm andwormgear.

The various changes are effected by the keyblocks, which are at all times accessible, easily handled, not liable to get fast, bend, nor get out of order.

The friction-brake is very powerful, as two eccentric-lever blocks, 0 0, are secured, one.

to each end of the friction-strap, and operated by a handspike. Either or both can, therefore,

be used to contro1 the wild-cat or barrel. Having thus described our invention, we

claim as new' and desire to secure by Letters.

Patent- 1. The combination, with the shaft of a capstan or windlass,provided with a worm-gear. loosely applied, and adapted to be locked to said shaft, of aworm connected with'and driven by one or more steam-en gines, substantially as set forth. I v

2. The combination, with the shaft of a capstan or Windlass, provided with a worm-gear,

L and Lare in of a worm directly secured to the crankshaft of one or more engine and, means for connecting or disconnecting the driving mechanism and the capstan or Windlass-shaft, substantially as set forth.

3. The combination, with the shaft of awindlass or capstan, having adriving-head rigidly secured thereto, of a worm-gear adapted to be locked to said driving-head, and a worm attached to the crank-shaft of one or more engines, substantially as set forth.

I 4. The combination, with the shaft of awlndlass or capstan, provided with oneormore barrels and wild-cats, and means for connecting and disconnecting said parts to the shaft independently of eachother, of a wormgear attached to the shaft, a worm secured to a crank-shaft which is driven by one or more engines, and means for throwing the engines out of connection with the Windlass-shaft, substantially as set forth.

5. A capstan, consisting. of a central shaft drivenby engine-power, having a drivinggear and capstan-head secured to said shaft, and a barrel and wild-cat revolving freely around said central shaft when both together, or each seprately can be locked so as to revolve with the shaft, substantially as and for the purpose herein described.

6. In apower-capstan, the toothed rim H and sleeve Z, made in one piece or secured together and to the disk-plate Y, and provided with locking-sockets by which the barrel and wild-cat, either or both, may be locked to and turn, with the sleeve Z and the driving-shaft, as and for the purpose set forth.

7. In combination with a capstan or windlass, the friction-strap N, when both ends of the strap are'connected to levers, so that either or both may be operated as described.

JOS. P. MANTON. GEO. H. REMINGTON. Witnesses Y J'osnrn A. MILLER,

J osnrrr A. MILLER, Jr.

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