US1327084A - Gun-mounting - Google Patents

Description

Al T. DAWSON AND G. T. BUCKHAM.

GUN MOUNTING. APPLICATION FILED MAY 27. 1918.

Patented Jan. 6,1920.

2 SHEETS-SHEET I.

Inventor-3 5 5 AHSMAN;

A. T. DAWSON AND G. T. BUCKHAM.

GUN MOUNTING.

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'1 $27,084:. I Patented Jan. 6,1920.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

ARTHUR TREVOR DAWSON AND GEORGE THOMAS BUCKHAM, OF WESTMINSTER, LONDON, ENGLAND, ASSIGNORS TO VICKERS LIMITED, OF WESTMINSTER,

ENGLAND.

GUN-MOUN TING.

Patented Jan. 6, 1920.

Original application filed September 6, 1916, Serial No. 118,633. Divided and this application filed May 27,

1918. Serial No. 236,918.

To all 'wkom'z't may concern:

Be it known that we, Sir ARTHUR TREVOR DAWSON, knight, and Sir GEORGE THoMAs BUGKHAM, knight, both subjects of the King of Great Britain, residing at Vickers House, Broadway, Westminster, in the county of London, England, have invented certain new and useful Improvements in or Relating to Gun-Mountings, of which the following is a specification.

This invention relates to gun mountings of the kind that are capable of swinging about a horizontal or approximately horizontal axis which is transverse to the axis of the gun and situated a substantial distance from a transverse plane containing the training axis of the gun so that the gun and its mounting as a whole can be readily displaced in a downward direction from the firing position and housed, when not in use, within a chamber formed for example in the superstructure of a submarine or submersible boat. The kind of mounting to which the invention relates is thus distinct from that kind in which the mounting proper (that is to say the part with respect to which the gun movesin training) does not move with the gun during the displacement of the latter to and from its housed position.

According to the invention we employ gearing, which is preferably power operated and may comprise a rack and pinion, for displacing the mounting as a whole about the aforesaid transverse axis.

In order that the said invention may be clearly understood and readily carried into effect, we will describe the same more fully with reference to the accompanying drawings, in which Figures 1 and 2 are sectional side elevations showing more or less diagrammatically two constructional forms of the invention.

Fig. 3 is a section taken approximately on the line 1, 1 of Fig. 2.

Figs. 4 and 5 are respectively a sectional side elevation and a sectional end elevation 'showin on an enlarged scale the manner in e gear illustrated by Fig. 1 may be operated.

A is the gun and B is the base of the mounting. C is the chamber in the superstructure'of a submarine boat, for the reception of the gun and its mounting when in the housed position. This chamber may be closed by a water-tight door C. D is a pivot pin which passes through the forward part of the base .B.

In the examples shown the gun mounting is of the cone type with worm and worm wheel training and elevating gears, the cone B being built up of steel plate. This cone moves with the gun in training and a ball or roller path may be interposed between its lower part and the base B of the mounting.

Referring to Figs. 1, 4 and 5., the gear for raising and lowering the mounting comprises two screw threaded shafts E, E each engaging with a nut E pivotally mounted at c on the rear part of the base B. Each shaft is carried by a bracket 0 pivoted at e (Fig. 5) to the stationary structure and supported by a member E on the said structure between which member and the bracket e rollers or balls are placed. The said shafts E, E are operated through suitable shafts and bevel or other gearing from the interior of the boat.

Referring to Figs. 4 and 5 it will be seen that. the two screw threaded shafts E, E are arranged one at each side of the base B. In Fig. 4 the mounting is assumed to be in its lowered position and in Fig. 5 in its raised position. F (Fig. 5) is an electric or other motor situated within the sub marine boat and operating upon the shafts E, E simultaneously through the gearing shown. Suitable means operated by a handle f are provided for reversing the direction of movement of the shafts simultaneously without necessitating the reversal of the motor. For this purpose a rod 7" operated by the handle 7 is connected to clutches f f each slidably keyed to the motor shaft F" so that one or other of two bevel pinions rotatably mounted on the said shaft and meshing with a bevel Wheel on a shaft F operating the screw threaded shaft E, can be connected to the shaft F By operating these sliding clutches'one or other pair of bevel wheels which are running loose become driving units and serve to operate the shafts F F". In Figs. 2 and 3 the screw threaded shafts are replaced by two fixed racks E -E with which mesh pinons a e operated through worm gearing from a shaft B. This shaft may be driven b bevel wheels B from the pivot D whic in this case constitutes a shaft actuated from the interior of the boat by bevel gearing and a shaft as will be readily understood by reference to Fi 5.

During t e housing displacement the mounting as a whole moves through an angle substantially less than a right angle and the housing operation takes place without the gun having to be inverted.

It is to be understood that any other suitable form of power or hand operated gear may be employed for raising and lowering the mounting, and. that means would be provided for locking the mounting in either of its aforesaid positions.

Although the pivot pin D is shown as being situated in front of a transverse plane containing the training axis of the gun, it is to be understood. that it may be situated to the rear of the said plane, the mounting then swinging in a forward direction during the housing 0 eration.

What we 0 aim and desire to secure by Letters Patent of the United States is 1. The combination with the training and the non-training portions oLa gun mounting, of a chamber in which the gun and mounting are adapted to be housed, means for pivoting the non-training portion of the mounting so that during the housing displacement of the mounting as a whole it moves through an angle substantially less than a right angle without the necessity of inverting the gun, and gearing for displacin the mounting about its pivot.

2. T e combination with the training and the non-trainin portions of a gun mounting, of a cham er in which the gun and mounting are adapted to be housed, means for pivoting the non-training portion of the mounting so that during the housing displacement of the mounting as a Whole it moves through an an le substantially less than a right angle wit out the necessity of inverting the gun, and power operated gearing for displacing the mounting about its pivot.

3. The combination with the training and the non-training portions of a gun mounting, of a chamber in which the gun and mounting are adapted to be housed, means for pivoting the non-training port1on of the mounting so that during the housing displacement of the mounting as a Whole it moves through an angle substantially less than a right angle Without the necessity of inverting the gun, and gearing comprising a rack and pinion for displacing the mounting about its pivot.

ARTHUR TREVOR DAWSON GEORGE THOMAS BUCKHAM.

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