US620802A

US620802A - resow

Info

Publication number: US620802A
Authority: US
Publication date: 1899-03-07
Anticipated expiration: 1916-03-07

Description

No. 620,802. Paiented Mar. 7, I899. A. masow & 0. LAUBER.

CARRIAGE FOR FIELD GUNS.

(Application filed Nov. 29, 1898.)

13 Sheeta-S heet I.

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(No Model.)

A. maso'w & o. LAUBER. CARRIAGE FOB FIELD GUNS.

(Application filed Noy. 29, 1898.)

Patented Mar. 7, I899.

3 Sheets$haei 2.

THE mums PETERS co. PHOTO-UTHO" WASHINEYON. n. o.

No. 620,802. Patented Mar. 7, 1899.

A. nzso'w & o. LAUBER. CARRIAGE FOB FIELD GUNS.

(Application filed Nov. 29, 1898.)

(No Model.) 3 Sheets-Sheet 3.

* rrn ADOLF RESOVV AND OTTO LAUBER, OF ESSEN, GERMANY, ASSIGNORS TO FRIED. KRUPP, OF SAME PLACE.

CARRIAGE FOR FIELD-GUNS.

SPECIFICATION forming part of Letters Patent N 0. 620,802, dated March '7, 1899.

Application filed November 29, 1898. Serial No. 697,751. (No model.)

To all whom it may concern.-

Be it known that we, ADOLF RESOW, engineer, and OTTO LAUB'ER, both citizens of the German Empire, residing at Essen, Germany, have invented certain new and useful Improvements in Carriages for Field-Guns, of w'iich the following is a specification.

Our invention has reference to improvements in carriages for field-guns which fire heavy shot at a high elevation and which are called high-fire guns. These guns are subjected to very heavy strains on their axles and wheels, for which reason these parts must be made very strong, thereby greatly increasing the weight of the carriage.

Various means have been employed for redueing the strains on the axle and wheels-- such, for instance, as suspending the carriagestock on the axle and wheels in such a manner as to have a translatory movement against spring-pressure in relation to the axle and in providing it with a support adapted to abut against the ground on firing the piece. (See Revue dArtiZlerie, Vol. 45, pages 524 to 528.) This method of elastically suspending the carriage-stock on the axle involved several disadvantages seriously affecting the action of the carriage. Thus the direction of motion of the carriage-stock is forwardly inclined instead of vertically downward, so that the distance traveled in a Vertical direction, the only direction which effects the reduction of the strain on the axle and wheels, is very short compared to the change of length of the buffer-spring. Furthermore, the carriage-stock is not positively guided with respect to the axles and may when firing on uneven ground. cause an angular displacement and jamming.

The object of our invention is to overcome these difficulties; and for this purpose it consists, essentially, in eccentrically supporting the carriage-stock on the wheel-axle, so as to allow a limited oscillation of the carriagestock against the tension of springs connecting the wheel-axle with the carriage-stock.

The nature of our invention will best be understood when described in connection with the accompanying drawings, in which- Figure 1 represents a side elevation of a gun-carriage embodying our improvements, showing the same in a position of rest. Fig.

2 is a front View of part of Fig. 1. Fig. 3 is a plan view of part of Fig. 1. Fig. 4 is a section through part of the axle. Fig. 5 is a side View of the principal parts contained in the is parallel to the line on which the carriage.

stock is pivoted to the axle. The crank-axle here shown is made of one piece, but it may be built in several pieces. The central part m may-pass through the sides of the carriagestock and be cranked outside, or the axle may be straight from one wheel to the other and provided with cranks extending therefrom and pivotally connected to the carriage-stock. Owing to this connection of the carriage-stock and the wheel-axle, the former may oscillate around the latter, the degree of oscillation being limited in the example shown by the sector-shaped opening in the flange or plate of the bearing L, through which opening the ends of the axle pass.

In view of the construction so far described the weight of the gun and carriage acting upon the central part m of the axle would cause said central part to be depressed or oscillated around the axis of the wheels, the trail at the same time sliding to the rear a short distance, or the trail under certain circumstances will remain stationary while the wheels move a short distance forward. During this oscillation of the part 'm of the axle the distance between the trunnion-bearings and the end n, forming the axle of the wheels, is shortened, as will be seen by comparing Figs. 1, 5, and 6. By inter-posing an elastic medium between the upper part of the carriage-stock and the ends at of the axle this elastic medium will be compressed when the moment of its resistance in relation to the center of oscillation is smaller than the turning moment due to the weight of the carriagestock and gun. When,however, the tension of the medium is so adjusted that its moment is greater than that due to the weight of the carriage-stock and of the gun, the parts will remain in the position shown in Fig. 1 until under the action of the recoil a larger force comes into the action, whereby the part m of the axle is depressed and the elastic medium compressed.

In the example shown in the drawings each one of the axle ends it is provided with an eye, to which is pivoted a spring-bolt B, loosely guided in a flange of the carriage-stock. This bolt, as shown, carries a column of dishsprings abutting at one end against the head of the spring-bolt and at the other end against the flange of the carriage-stock. The aggregate tension of the dish-springs, is greater than the opposite force due to the weight of the stock and gun. About vertically beneath the trunnion-bearings is suspended from the carriage-stock a pendulous support S, Figs. 1 and 2.

The action of the apparatus is as follows: Vhen the gun is fired at a great elevation, the recoil of the gun acts, in addition to the weight of the several parts, to depress the central part 771 of the axle, which said part is caused to swing around the endsn as an axis against the action of the spring, the downward motion of the forward end of the carriage-stock being limited by the support S, which is brought down into the ground, as shown in Fig. 6. After firing the springs expand and the carriage-stock resumes its former position, as shown in Fig. 1.

WVhat we claim as new is 1. In carriages for fieldguns, a carriagestock pivoted to the wheel-axle eccentrically to the axis of the wheels, so as to allow a limited oscillation of the carriage-stock .around the axis of the wheels under the action of weight and recoil, and springs between the axle of the wheels and the forward end of the carriage-stock adapted to act in opposition to the tendency of the weight and recoil to turn the carriage-stock around the axis of the wheels, substantially as and for the purpose specified.

2. In carriages for field-guns, the combination with the carriage-stock and the wheels, of an axle consisting of a-central part m pivotally connected to the forward end of the carriage-stock, axle ends n, the axis of which is parallel to the axis of the pivots of the central parts m, so as to permit limited oscillation of the carriage-stock around the axis of the wheels, and two spring-actuated bolts B pivoted to the axle ends and loosely guided at the forward ends of the carriage-stock and adapted to act in opposite direction to the tendency of the weight and recoil to turn the carriage-stock around the axis of the wheels, substantially as described.

3. In carriages for field-guns, the combination with the carriage-stock and the wheels, of an axle consisting of acentral part m pivotally connected to the forward end of the carriage-stock, axle ends 72-, the axis of which is parallel to the axis of the pivots of the central part m, so as to permit limited oscillation of the carriage-stock around the axis of the wheels, two spring-actuated bolts B pivoted to the axle ends and loosely guided at the forward ends of the carriage-stock and adapted to act in opposite direction to the tendency of the weight and recoil to turn the carriagestock around the axis of the wheels, and a support S suspended from the carriage, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

ADOLF RESOVV. OTTO LAUBER.

Witnesses:

WILLIAM ESSENVVEIN, GEO. P. PETTIT.