US458554A

US458554A - tayloe

Info

Publication number: US458554A
Authority: US
Publication date: 1891-08-25
Anticipated expiration: 1908-08-25

Description

P. B. TAYLOR. MORTAR CARRIAGE.

PatentedAug. 25, 1891.

(No Hedel.) 3 Sheets-Sheet 1.

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(No Model.)

3 Sheets-Silent 2.

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Patented Aug. 25, 1891.

(No Model.) 3 Sheets-Sheet 3.

F. B. TAYLOR.

MORTAR CARRIAGE.

No. 458,554. Patented Aug. 25, 1891.

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FENNER B. TAYLOR, OF YVASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TO THE PNEUMATIC GUN CARRIAGE AND POIVER COMPANY, OF SAME PLACE.

MORTAR-CARRIAG E.

SPECIFICATION forming part of Letters Patent No. 458,554, dated August 25, 1891.

Application filed June 2, 1891.

T0 all whom it may concern.-

Be it known that I, FENNER B. TAYLOR, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Mortar-Carriages; and I do hereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which itappertains to make and use the same.

' This invention relates to mortarcarriages.

The object of the invention is to produce a mortar-carriage of simple and inexpensive construction, whereby the mortar may be elevated or depressed or trained with great rapidity and ease.

The object of theinvention is, furthermore, to produce a mortar-carriage of such construction that the recoil of the mortar shall be taken up and the mortar automatically returned to ring position after each firing in a safe and reliable manner.

With these objects in view the invention consists, essentially,in a mortar-carriage com prisin g two cylinders having their piston-rods formed with bearings to receive the trunnions of a mortar, the cylinders being mounted in a suitable frame, and links pivoted in the frame and pivotally connected with the bearings for the trunnions, whereby a support for the mortar is provided.

The invention consists, furthermore, in a mortar-carriage comprising two cylinders having their piston-rods provided with bearings for the trunnions of the mortar, the cylinders being mounted in a suit-able frame in such manner as to allow them to vibrate, and links pivotally connected with the frame and connected with the bearings for the trunnions of the mortar.

The invention consists, furthermore, in combination, with a mortar provided with the usual trunnions and with a toothed segment, of a mortar-carriage comprising two cylinders having their pistonrods provided with bearin gs for the trunnions of the mortar, alink pivotally connected with the base of the' mor- Serial No. 394,876. (No model.)

tar-carriage and with the bearings for the trunnions, a hand-Wheel, a pinion mounted on the piston-rod and meshing with the segment on the mortar, and a connection between the hand-wheel and the pinion, whereby the mortar may be elevated or depressed independently of the piston-rods.

The invention consists, furthermore, in a u Wheels, hook-shaped projections on the movable part engaging an overhanging rim on the stationary part, the stationary portion being provided with an internally-toothed ring, and a pinion mounted on the movable part and engaging said toothed ring, and means for imparting rotary motion to the pinion.

The invention consists, furthermore, in various novel details of construction, whereby the objects of the invention are attained.

The invention is illustrated in the accompanying drawings, in Which- Figurel is a side elevation of a mortar constructed in accordance with my invention, the mortar being shown in firing position. Fig. 2 is a rear elevation of my improved carriage, the cylinder and supporting-links on one side being shown as removed and the base of the carriage being shown as partly in section. Fig. 8 is a sectional view showing the means for attaching the carriage to its supportingrail. Fig. 4 is a detail view showing the form of cylinder employed.

In the drawings, A represents a stationary bed-plate, which is provided with an outer ring a., having an overhanging portion a', and

provided also with an internally-toothed surface a2. This bed-plate is designed to be secured permanently to a solid foundation.

B represents a movable portion of the mortar-carriage, which is provided with suitable wheels b, preferably conical in form, to facilitate proper rotary movement. The portion B of the carriage is provided with a series of depending hooks or claws b', the lower ends whereof engage the overhanging portion a of the stationary portion of the frame, thereby preventing raising of the portion B from the stationary bed-plate.

Mounted on a suitable portion D of the frame is a shaft C, the lower end of which is provided with a pinion c, engaging the circular tooth-plate a2 of the bed-plate of the carriage. On the upper end of the shaft C is a gear-wheel c', with which meshes a worm c2, to which motion is imparted through a crank c3, mounted adjacent to the gear-wheel. Thus it will be seen that by giving motion to the worm c2 by the handle c3 the movable part of the carriage through the pinion c and the toothed bar a2 will be given a rotary motion in either direction according to the way in which the handle c3 is turned.

D represents the cylinders designed to contain compressed air and provided with trunnions d, mounted in suitable bearings in the portion B of the frame of the carriage. It is designed that one of these cylinders be placed on each side of the mortar, and the pistonrods d, which extend one each side of the mortar E, are provided with bearings d', receiving the trunnions e of the mortar. In order to aid in forming a support for the mortar linksF are provided, one on each side of the mortar, and are pivoted at points f to the portion B of the frame at their lower ends, and at their upper ends are pivoted to the depending portion of the piston-rods at a point f. The lower rings of the mortar are provided with plane surfaces e', and against these surfaces bear the guide-plates d2, which are attached to the cylinders D.

One side of the mortar E is provided with a toothed segment e2, and upon asuitable portion of the piston-rod d is placed a pinion G, meshing with the toothed segment e2, whereby by rotating the segment, the mortar may be elevated or depressed at will. One means for imparting motion to this segment is illustrated in the accompanying drawings. In this form a hand-wheel G is mounted upon a projection from the piston-rod d, and on the shaft of this hand-wheel is a beveled gear-wheel g, meshing with a corresponding beveled gearwheel g on the shaft g2. The outer end of this shaft g2 is provided with a worm g3, meshing with the gear-wheel g4, on the shaft g5 of which is mounted the pinion G. The handwheel G is mounted in a position to be readily grasped by hand, and it will be seen that by rotating the hand-wheel the mortar may be elevated or depressed at will. Each of the cylinders is provided with an air-inlet d3, through which compressed air is introduced into the lower end of the cylinders for the purpose of elevating the gun to a firing position, the piston-head d4 at this position being adjacent to the upper head of the cylinder. Each cylinder is also provided with safety-valves d5, regulating the opening between the interior of the cylinder and the passage d, which communicates with each end of the cylinder, the purposes of the valves being to allow escape of the compressed air from below the piston-head to a space above it in case the air below the piston-head is compressed too great a degree to allow proper recoil of the mortar.

The operation of the carriage is as follows: When the mortar is fired, the same will recoil, forcing the piston-head d4 downward into the cylinders D, resulting in compressing the air contained in the cylinders, which is already at sufficient pressure to maintain the weight of the mortar and appurtenances. As soon as the force of the recoil is exhausted the compressed air in the cylinder, which is under great pressure, will force the piston-heads upward, and consequently return the mortar to a normal or ring position.

Vhile I have herein described the use of compressed. air in operating the gun-carriage, I do not wish to be understood' as claiming it, as the use of compressed air in connection with gun-carriages is broadly covered by Letters Patent No. 339,466, dated April 6,1886, issued to the Pneumatic Gunl Carriage Com- Pally- Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. A mortar-carriage comprising two cylinders having their piston-rods formed with bearings to receive the trunnions of a mortar, the cylinders being mounted in a suit.- able frame, and links pivoted in the frame and pivotally connected with the bearings for the trunnions, substantially as described.

2. A mortar-carriage comprising two cylinders having their piston-rods provided with bearings for the trunnions of the mortar, the cylinders being mounted in a suitable frame in such manner as to allow them to vibrate, and links pivot-ally connected with the bearings for the trunnions of a mortar and pivoted in the frame of the carriage, substantially as described.

3. The combination, with a mortar provided with the usual trunnions and with a toothed segment, of a gun-carriage comprising two cylinders having their piston-rods provided with bearings for the trunnions of the mortar, a link pivotally connected with the base of the mortar-carriage and with the bearings of the trunnions, a hand-wheel, a pinion mounted on the piston-rods and meshing with the segment on the mortar, and a ings, and compressed-air inlets to the cylinconnection between the hand-wheel and the pinion, substantially as described.

4. A mortar-Carriage comprising two cylinders having their piston-rods formed with bearings to receive the trunnions of a mortar, links pivoted in the frame of the carriage and pvotally connected with the bearders, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

FENNER B. TAYLOR. Witnesses:

WM. P. HUNT, Jr., EDWD. HAMILTON.