US40539A

US40539A - Improved ponton-boat

Info

Publication number: US40539A
Authority: US
Publication date: 1863-11-03
Anticipated expiration: 1880-11-03

Description

E., HARRISON. PUNTON BOAT.

PATENTED NOV. 3,

MJU/1 UNITED STATES PATENT OFFICE.

ENOCH HARRISON, OF NEW YORK, N.v Y., ASSIGNOR TO HIMSELF AND EDWARD W. SERRELL, 0F SAME PLACE.

IM PROVED PONTON-BOAT.

Specification forming part of Letters Patent No. 40,539, dated November 3, 1863 'antedated October 29, 1863.

To all whom it may concern:

Be it known that 1, ENooH HARRISON, of the city and State of New York, have invented, made, and applied to use a certain new and useful Improvement in Scows and Ponton- Boats; and I do hereby declare the following to be a full, clear, and exact description of my said invention, reference being had to the annexed drawings, making part of this speciication, wherein- Figure lis a plan of said boat. Fig. 2 is a longitudinal section of the same, and Fig. 3 isa cross-section.

Similar marks of refer ence denote the same parts.

Pontons have heretofore been made to put together in sections, but diculty has heretofore existed in making such boats sufficiently light for transportation.

` The nature of my said invention consists in a peculiar construction of flat-bottomed boat or scow adapted to the embarkation or debarkation of troops, supplies, ordnance, &c., or

for forming the floats of a ponton-bridge, I make use of removable side and end pieces and a bottom composed of separate plank clamped together, so that my boat can be taken apart and moved in sections or in detail, and can be put together' very quickly and made water-tight.

tom, with bolts 2 2 passing through holes in the sills a a.

The straps h h in putting the boat together are to be laid down at suitable distances apart; then the floor-plank are laid together, having previously been planed up true; then the ends of the boat are put in place, the floorplank resting in the rabbets l l; then one of the sides is put on and the bolt 2 passed through its holes in the sill a, and then the thwarts g g are put in place and the other side attached by the bolts 2 2, and by screwing up the said bolts tightly' the bottom will be thoroughly compressed and held together. A strip of india-rubber may be introduced between d and the end pieces of the boat. 'i i are bolts applied to draw the upper parts of the sides together at the ends and bind them against such end pieces, and It are knees introduced to strengthen the corners, and l is a cross-timber to sustain the sides of the boat near the middle.

It will be evident that this boat can be taken apart or put together with great facility, and that it can be easily transported or when not in use can be packed away in safety instead of being left, as now usual, either in the water or exposed under circumstances that speedily effect its destruction.

What I claim, and desire to secure by Letters Patent, is-

rlhe mode of retaining the floor-plaLks beneath the thwarts g g `by the metallic` straps h h and bolts 2 2, in combination with the removable side and end pieces of the boat, as set forth.

In witness whereof I have hereunto set my signature this lst day of April, 1863.

Witnesses: ENOGH HARRISON.

THos. GEO. HAROLD, LEMUEL W. SEERELL.