US90814A - Improvement in gun-carriages - Google Patents

Description

L. W. BROADWELL Gun Carriage. No. 90,814.

Patent ed June 1, 1869.

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L. W. BROADWELL, OF. NEW ORLEANS, LOUISIANA.

Letters Patent .No. 90,814, dated June 1, 1869.

IMPROVEMENT IN GUN-CARRIAGES.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Be it known that I, L. W. BROADWELL, of New Orleans, in the parish of Orleans, and State of Louisiana, have invented a new and useful Improvement in Gun-Carriages, of which the following is a full, clear, and exact description, reference being bad to the accompanying drawing, forming part of this specification, and in which-' Figure 1 represents a longitudinal section of a guncarriage constructed in accordance with my improvement;

Figure 2, a plan of the same; and

Figure 3, a transverse section through the line a: a: in fig. 1.

Figure 4 is a horizontal section in part, through the travelling-nut used for training the gun.

Similar letters of reference indicate corresponding parts.

My improvement relates to carriages for the Gatlin battery, and other guns; and consists in a certain combination of a trunnion-piece and revolving or swivelling forward-support for the gun, and a wing-piece or plate, and elevating-screw, for adjustment of the trunnion-picce with its revolving gun-support.

Likewise, the invention consists in a swivelling end piece or support to the reanportion of the gun, in combination with a travelling-nut and screw, operating the latter, 'to facilitate, in connection with the revolving forward-support, training of the gun to the right or left, as required.

Referring to the accompanying drawing- A represents the frame and trail, provided at its forward end with boxes, for the axle B of the wheels to the carriage; also with checks 0 G mounted on it,

constructed to form hearings to a trunnion-piece, D, having horizontal trunnions aa.

On this trunnion-piece D is mounted a revolving or swivelling supporting-piece E to the forward or body portion of the gun, I) being the centre-bolt or pivot on or with which said supporting-piece turns, and which occupies a transverse position to the. axial line of the trunnions a a. This, it will be seen, provides for a double adjustment of the gun, namely, on or through the trunnions a a, as one centre of motion, and on or through the cross-bolt b as another.

To elevate the gun as required, by rocking thetrunnion-piece, said piece is provided in its rear with a wing-piece or plate, F, and this latter connected, at or near its back end, with an elevating-screw, G, which works through a box, H, connected with the frame or trail.

After the gun has been elevated or set to its required angle, by means of thescrewG, through a wheel, 0, or lever, attached thereto, said screw may be locked by a set-screw, (l.

I is the piece that supports or is attached to the rear end of the gun. This piece is arranged over the back end of the plate F, and is connected in a swivelliug or loose manner, as from a centre at c, with atravelliug-nut or box, J, that is worked to the right or left of 'the cari-iage by suitably turning a screw, K, carried in bearings attached to the plate F.

By these means the gun, being fastened to the revolving supporting-piece E, on the trunnion-piece D, may be trained to the right or left, as required.

What is here claimed, and desired to be secured by Letters Patent, is-- 1. The combination of the wing-piece or plate F, and elevating-screw G, with the trunnion-piece D and rer'olving supporting-piece E, essentially as shown anddescribed. p

2. The combination of the end piece I, the travelling-nut or box J, with its operating-screw K, and the revolvingsupporting piece E, substantially as specified.

L. W. BROADWELL.

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