US1226731A

US1226731A - Trip riding-pawl.

Info

Publication number: US1226731A
Application number: US15885917A
Authority: US
Inventors: William J Wheeler
Original assignee: Individual
Current assignee: Individual
Priority date: 1917-03-31
Filing date: 1917-03-31
Publication date: 1917-05-22
Anticipated expiration: 1934-05-22

Description

W31. WHEELER. TRIP RIDING PAWL.

APPLICATION FILED MAR- 3h 191?.

Patented May 22,1917.

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'WILLIAIVI J. WHEELER, OI PATCI-IOGUE, NEW YORK.

TRIP RIDING-PAWL wearer;

Application filed March 31, 1917.

i To all whom it may concern.

Be it known that I, l/VILLIAM J. WVI-IEELER, a cltlzen of theUnited States, reslding at Patchogue, in the county of Suii'olk and State 01: New York, have invented new and useful Improvements in Trip Ridmg-Pawls, of which the following 1s a specification.

This invention relates to cable stoppers,

and more particularly to, the riding pawl whichis adapted to engage the links of the chain or cable to prevent paying outof the latter.

Cable stoppers of the type now .generally employedon ships are provided with a onepiece pawl pivoted at one end and adapted to engage the links of the chain at its free end, and with this arrangement, when the anchor is riding by the pawl, that is, prevented from running, due to the engagement of the pawl against the links of the chain, it is necessary, to pay out the chain, to first put the Windlass in operation and heave 1n the chain slightly, torelieve' the pawl of the strain of the cable, and then swing the pawl upwardly out of engagement with the chain. With my construction unnecessary delay 1n paying out the chain is obviated and this is of considerable "advantage, as it is always desired to quickly release the chain to prevent danger of the anchor dragging, especially in equally weather.

The present invention has as its main purpose to provide the chain stopper with an.

improved trip or pawl which will permit of release of the chain without first relieving the strain thereof upon the pawl. My improved trip is very simple in construction, eiiicient in operation, and is strongly 'made so as to withstand the strain of the chain and anchor thereupon.

The above and other obJects of my invention are obtained in the structure clescribed in the following specification and illustrated in the accompanying drawings wherein, p

I Figure 1 is a sectional view through a chain stopper showing my improved trip applied thereto.

Fig. 2 is a top plan view of the structure shown in Fig. 1.

Fig. 3 is a side elevational view of my improved trip, the same being shown in broken condition.

Fig. 4 is a top plan view of the trip.

Referring to the drawings, wherein like numerals represent like parts in the several Specification of Letters Patent.

Patented May 2.2, 1917.- Serial No. 158,859. 1

views, 10 designates the channel or pipe member of the chain stopper through which the chain or cable is adapted to pass. The channel member 10 is provided at eachside with a sleeve or pipe section 11 through which extends a horizontally disposed guidebar or rod 12, the latter being fined in suitable posts 13. The sleeves 11 are slidably mounted upon the guide rods 12 and are normally. urged in a direction toward the Windlass by coiled'springs 14 encircling the rods '12 and interposed between the sleeves and the posts 13. Extending transversely of and adjacent to the upper end of the channel. member 10 is a pivot post 15 to which my improved trip or pawl is pivoted. The springs 1% permit of a slight movement of the channel member 10 and are adapted to act as buffers which minimize the shock or jar to which the chain and stopper would be otherwise subjected when the ship is riding at anchor.

The chain stopper above described is of a well-known type, and it is to be understood that the present invention is not limited totheparticular kind of chain stopper illustrated, as this stopper is shown for illus trative purposes only.

My improved trip or pawl comprises two parts, a firstpart 16 pivoted to the pivot post 15 and a second part 17 pivoted to the free end of the part 16. The part 17 has an extension 19 which fits, in between a pair of fears 20 on the first part, and the extension and ears are transversely apertured so that, when the parts are assembled, a through opening is obtained for the reception of a bolt v18. It will be noted from Figs. 1 and 3, that the parts 16 and 17 of the trip are provided with opposed shoulders 21 which,

when the trip 13111 extended position, are in of the bolt 18, will move past the line of center through the pivotal post 15 and the nose 22 so that the tendency of the chain through its pull against the trip, isto fold the parts of the trip upwardly to maintain the shoulders 21 in engagement and hold the trip in extended position.

' The portions 16 and 17 of the trip have on their upper surfaces upstanding apertured ears or projections 23 and 24:, respectively,

and the apertures in these ears are in alinement with each other when the trip 1s in ex the ear 23 and terminating short of the front edge thereof in a circumferential or segmental slot 29. The latter slot 29 receives the pin 27v when the rod is moved into its foremost position and then given a partial revolution.

The operation of my improved trip will be readily understood from the foregoing de-, scription. In the extended position shown in Fig. 1, and in which position the nose 22 is engaging one of the links of the chain so as to prevent running thereof, the shoulders 21 onthe parts of the trip abut each other and the parts are held in this position by the pull of the chain due to the fact that the center of bolt'18 is beyond the line through the center of post 15 and nose 22. When the parts are in this position, to insure against accidental breaking of the trip, the rod 25 is caused to extend through the apertures in both of the ears or

projections

23 and 24. By engaging the pin 27 in the peripheral slot 29 accidental withdrawal of the rod is prevented.

When it isdesiredto pay out the chain,

' the rod 25 is given 'a partial revolution so as to move the pin 27 in the slot 29 and bring the same in registry with the longitudinal slot 29. The rod is then drawn outwardly until the forward end thereof is out of engagement with the aperture in the can 24 and the pin 26 engages the forward edge of the ear 23. A downward force is now applied to the upper end of the rod .25 which causes the trip to pivot about the post 15. After the center of the bolt 18 is thus raised above the line running through the center of the post 15 and the nose 22, the pull of the chain against the nose will break the trip at thev bolt 18 and cause the part 17 to fold downwardlyv and backwardly upon the part 16. Due to the fact that the center of bolt 18 is only slightly outof alinement with the nose 22 and post 15, the distance which the rod. 25 must be moved to break the trip is slight, and thus a sharp downward jar or push will be sufiicient to break the trip.

This invention is susceptible of various changes and modifications which would be parts are connected being beyond the line of center passing through the pivotal line of the trip and the chain-engaging end thereof.

2. A trip pawl for chain stoppers pivoted at one end and adapted to engage a cable at its free end, and comprising two parts hingedly connected, and means for locking said parts in extended or alined position.

3. A trip pawl for chain stoppers pivoted at one end and adapted to engage a cable at its free end .and comprising two parts hingedly connected, an apertured member on each of said parts, and a rod extending through the apertures of said members to lock said parts in extended or alined position.

4. A trip pawl for chain stoppers pivoted at one end and adapted to engage a cable at its free end and comprising two parts hingedly connected, the line on which said parts are connected being beyond the line passing through the pivotal line of said trip and the chain engaging end thereof when the parts are in extended or alined position, an apertured member on each of said parts, and a rod adapted to extend through the apertures of said members to lock the parts in extended or alined position.

5. A trip pawl for chain stoppers comprising two partsv hingedly connected together, ears on each of said parts, openings in said cars which are in alinement when the parts are in extended position, and a rod adapted to extend through said openings to lock the parts in extended position.

6. A trip for chain stoppers pivoted at one end and adapted to engage a cable at its other end and comprising two parts hingedly connected together, ears on said members having openings which are in alinement when the parts are in extended position, a rod adapted to extend through said openings to lock the parts in extended position, and means for preventing withdrawal of the rod from said ears.

7 A trip pawl for chain stoppers pivoted at one end and adapted to engage a cable at its other end and comprising two parts hingedly connected together, ears on said parts having openings which are in alinement when the parts areextendecha rod in said openings for locking said parts in extended position, and means on the rod for maintaining the rod in lockingposition.

8. A trip pawl for chain stoppers comprising two parts hingedly connected to- ,which are in alinement when the parts are in extended position, a rod adapted to extend through said openings to lock the parts in extended position, and a pin on said rod, one of said ears having a longitudinal slot terminating in a peripheral slot and the latter slot being adapted to receive said pin to maintain the rod in looking position.

9. A trip pawl for chain stoppers comprising a pivoted first part, a second part hingedly connected to said first part, an ear on each of said parts openings in said ears which are in alinement when the parts are in extended position, said ear of the first part having a longitudinal slot terminating in a peripheral slot, a rod adapted to engage in the alined openings of said ears to lock the parts in extended position, and a pin on said rod adapted to move through said longitudinal slot and engage in said peripheral slot to prevent withdrawal of the slot from looking position.

10. A trip pawl for chain stoppers comprising a pivoted first part, a second part hingedly connected to said first part, an ear on each of said parts, openings in said ears which are in alinement when the parts are in extended position, said ear of the first part having a longitudinal slot terminating in a peripheral slot a rod adapted to engage in the alined openings of said ears to lock nesses;

WILLIAM J. WHEELER. Witnesses:

SAMUEL S. OvER'roN, GEORGE Gr. MAYER.

Copies of this patent may be obtained forfive cents each, by addressing the "Commissioner of Patents.

Washington, 13.0.