US168655A - Improvement in coal-barges - Google Patents

Description

. Coal-Barge. y No. 168,655.

- l Patented Oct. 11, 1875.

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NPEFERS. PNDYo-UTHOGRAPHER, v/ASMINGION. D C.

NITED STATES PATENT OFFICE.

GEORGE B. l MARTIN AND JULIUS A. PRESTON, OF NEW HAVEN, CONN. y

IMPRovEMl-:NT IN coAL-BARGES.

Specification forming part of Letters Patent No. [68.655, dated October 11, 1875; application led May 19, 1875.

To all whom it may concern:

Be it known that we, GEORGE B. MARTIN and JULIUs A. PRESTON, of New Haven, in the State of Connecticut, have invented an Improvement in Boats for Carrying Coal,

' tial lon gitudinal section.

The boat is of suitable dimensions, and made with bottom b, sides a a, deck c, combings e, and keelsons f, similar to those in aforesaid patent, but the sides aware made of timbers extending lengthwise of the boat, and secured together with vertical bolts that connect the same to the angle-stringers h; and, in order to prevent these timbers or planking from moving upon each other in consequence of the weight in the vessel, I employ square dowels or coagin gs l 2, (see Figs. 2and 4,) that pass transversely between the timbers or plankings in square holes formed half in each timber; but, instead of employing a dowel that is -only large and long enough to ll the hole, I make the coagings tapering and longer than the thickness of` the timbers through which they pass. These coagings are driven into place, and till up the holes, and the surplus length projects internally, so that after the vessel has been in use, and the timbers hafe yielded to Lstrain or weight, the vessel will be stilfened and rendered rigid by driving in these coagings, and sawing off the ends that project upon the outside of the vessel.

The bottom of the vessel is made with reference to obtaining' great strength.V The crossbeams l are connected at their ends with the angle string-pieces h, and beneath these beams l are the longitudinal string-pieces m, upon the under side of which the planking b is received. The keelsons falso are in contact with the planking, and they receive the ends of the transverse floor strips or timbers o, upon which the longitudinal plankin g p is laid between the i keelsons.. This construction insures uniform distribution of the weight, and great strength. The uprights or posts rrest upon the keels'ons, and support the combings and deck, and tie-bolts s pass down through the combings at the side of the post, and through the keelsons, so as to tie the parts firmly together, and diagonal braces may be` used in addition. The inclined partitions s run longitudinally of the boat, and extend from the keelsons, or near the same, `to the sides of the boat, and serve to direct the coal or other material ontained in bulk in the vessel toward the central part below the opening or hatchway between the combings.

The vessel is divided into sections by transverse partitions or bulk-heads t, that are made to rest upon the beams l, and extend up to the' under sides of the deck. They may also extend, as secondary or removable partitions t', between the combings. The bulkhead planks't are received at their ends between the vertical angle-studs c, that are adapted to receive the dovetailed ends of the planks t, and the parts are bolted together.

Thereby the vessel is tied togetherby said' partitions or bulk-heads extending from one side vto the other, and rendered very stili', and the bulk-head is compressed and confined between the beams and combin gs by the vertical tie-bolts, so that the longitudinal keelsons, combings, and transverse bulk-heads are conlined into a very strong structure. ,Inclines w, resting against the bulk-heads and upon the ooring, serve to direct the coal'toward the place from which it is excavated by any suitable elevating apparatus. There are doorways through the bulk-heads below the i11- clined partitions, as at y, so that a man can pass along the side of the vessel and examine the same, eve'n when there is coal or other cargo in the boat.

Vile claim as our inventionl 1. The bulk-heads t, made with boards with dovetailed ends received between the vertical studs/v that are secured to the sides of the boat or barge, in combination with the bolts s passing through the combings and keelsons,

as set forth.

2. The boat or barge, made with dowelsl or coagings 2., that taper and project within the Vessel, for the purposes set forth.

3. The longitudinal string-pieces m beneath the beams l, and receiving the planking, in

combination with the floor-timbers o and plank- Aing p, as and for the purposes set forth.

4:. The bulkheads, constructed as aforesaid, in combination with the inclined partitions s' and fw, as set forth.

5. The combination, in a barge, ofthe longitudinal keelsons f, the combings e, the connecting-bolts s, and the transverse bulk-heads t, substantially as-and for the purposes set forth. Y

Signedv by us this 11th' dayof May, A. D.

GEORGE B. MARTIN. J ULIUS A. PRESTON. Witnesses:

J. C. COHLE, JNO. J. MARTIN.

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