US1067002A - Landing-ladder for ships. - Google Patents

Description

J. S. DEARWOOD.

LANDING LADDER FOR SHIPS.

APPLICATION FILED JULY 2, 1312.

1,067,002, Patented July 8, 1913.

wwwaooeo I l Horne/1 s JOSEPH S. DEARWOOD, OF SAULT STE. MARIE, MICHIGAN.

LANDINGLADDER FOR SHIPS.

Specification of Letters Patent.

Application filed July 2, 1912.

Patented July 8, 1913.

Serial No. 707,387.

To all whom it may concern Be it known that I, Josnrirr S. Dnanwoon, a citizen of the United States, residing at Sault Ste. Marie, in the county of Chippewa, State of Michigan, have invented certain new and useful Improvements in Landing- Ladders for Ships; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appcrtains to make and use the same.

This invention relates to improvements in landing devices, and has particular reference to a device in the nature of a gang plank for landing a man to catch a line from a ship, at a pier or wharf, which is lower than the side rail of the ship.

The principal object of the invention is to provide a simple device of this character which may be moved from one part of the ship to another and quickly and easily adjusted to suit the relative heights of the pier and rail.

Another object is to provide a simple device of this character which may be folded to occupy a minimum amount of space.

In the drawings: Figure 1 is a sectional view of a ships side and a pier showing my invention in use, Fig. 2 is a top plan View of the same, Fig. 3 is a side elevation of the device, in open position, Fig. 4 is a vertical longitudinal sectional view of the device in folded position, Fig. 5 is a vertical transverse sectional view on the line 5-5 of Fig. 4, and Fig. 6 is a vertical transverse sectional View on the line 6-6 of Fig. 4:.

Referring particularly to the drawings, my device comprises a truck including the longitudinal side bars 10 and the cross brace bars 11, suitable fastenings 12 being secured to the lower faces of the side bars, in which is mounted an axle 18 carrying Wheels 14: for supporting the truck.

Slidable longitudinally on the frame of the truck, and held by means of the strap hooks 15 is the ladder section 16. At one end of this ladder section and journaled in the ends of the side rails is a Winding drum 17, one end of the shaft having a ratchet wheel 18 engaged by a pivoted pawl 19 mounted on the adjacent side rails. Secured to the under faces of the other ends of the side rails of the ladder section 16 are the straps 20 which are bent outwardly as at 21 the other end of the said strap being secured to the end of the adjacent rails and provided with a loop 22, said loop being adapted to be disposed in register with similarly formed loops 5213 on the ends of the straps 24; secured to the side rails of a second ladder section 25, said section being disposed on top of the section 16, a pin 20 being passed through said loop and forming a head for the upper ladder section. The ladder 25 has the cross boards which fill the spaces between the rings, and provides a gang plank.

Near the outer end of the upper ladder section, are cords 27, which extend rearwardly and. are secured to the hefore-mentioned winding drum. Mounted in the truck frame and journaled in the sides thereof is a second winding drum 28 having cords 29 wound thereon and secured at their other end to one end of the ladder section 16, so that upon turning the drum the section 16 may be shifted along the truck to any clesired position. In one end of each of the side bars of the truck, and at the upper side thereof, is formed a notch or cutaway portion 28, said notches being adapted to engage on the side rails of the ship when the device is in use.

In using the device the truck is run up to the side of the ship, and positioned so that the side rails of the ship will engage within the notches. The ladder section 16 is moved along the truck so that it hangs vertically at the ships side, when the other section of the ladder is swung on its pivot to a hori zontal position so that its outer end rests on the pier or dock. The lineman passes from the ship down the ladder section 16, and then walks to the pier on the ladder section 25, the cords 9.7 :iorming hand rails for the gang plank.

What is claimed is:

1. In a landing device for ships, a wheeled truck, a ladder slidable on the truck, means on the ladder for ei'igagement with the rail of a ship, a second ladder hinged to the first ladder, and adapted for engagement with a wharf, pier, or the like, means carried by the truck for moving the first-named ladder on the truck, and means also carried by the first ladder for moving the second ladder toward and away from the wharf, pier, or the like.

9. In a landing device for ships, a wheeled truck, a ladder slidable on the truck, means on the ladder for engagement with the rail of a ship, a second ladder hinged to the moving the second ladder toward and away first ladder and adapted for engagement from the Wharf, pier or the like. 10 With a Wharf, pier, or the like, a ratchet In testimony whereof, I afiiX my signa- Winding drum on the truck, a cable conture in presence of two Witnesses.

nected to the drum and the slidable ladder, JOSEPH S. DEARWOOD. a ratchet Winding drum on the slidable lad- Witnesses:

der, and a cable connected to the drum and JOHN A. MoMAHoN,

to the outer end of the second ladder, for LAWSON C. HOLDEN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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