US1543262A - Quick-firing gun - Google Patents

Description

June 23, 1925.

N. E. METHLIN QUICK FIRING GUN Filed Jan, 3. 1925 6 Shee ts-Sheet T1 June 23, 1925.

N. E. METHLIN QUICK FIR[NG GUN Filed Jan. 5, 1925 6 Sheets-Sheet 2 June 23, 1925.

N. E. METHLIN QUICK FIRING GUN Filed Jan. 5, 1925 6 Sheets-Sheet '5 Wmw (Lt/BMW? June 23, 1925. 3,543,262

N. E. METHLIN I QUICK FIRING GUN Filed Jan 5, 1925 6 Sheets-Sheet 4 is E c J\ E 1 z A 5H f 1 A c B /V ,1

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June 23, 1925.

N. E. METHLIN QUICK FIRING GUN Filed Jan. 5, 1925 6 Sheets-Sheet 6 W sectional v40 device illustrated in Figure 5.

NICOLAS EMILIEN METHLIN, OF PARIS, FRANCE, ASSIGNOR TO CHJN'EIDER & CIE., OI PARIS, FRANCE, A LIMITED JOINTSTOGK COMPANY OF FRANCE. I

QUICK-FIRING eon.

Application filed Januarya, 1925. Serial No. 429.

To all-whom it may concern: I

Be it known that I, NICOLAS EMILIEN METHLIN, a citizen of the Republic of France, resident of Paris, France, have invented new and useful Improvements 1n or Relating to Quick-Firing Guns, which is fully set forth in the following specification.

This invention relates to a device more particularly applicable to small calibre guns recoiling on a cradle, and which ensures the cooling and provides for the expansion of the barrels.

Various forms of construction of the invention are illustrated by way of example in the accompanying drawings in which Figure 1 is a sectional plan of a part ofa" gun constructed according to thednvention, the section being taken along the line 1-1 m Figure 2, which is a cross-section along the line '2-2 in Figure 1. Figure 3 is a crosssection along the axis of the trunnions of the cradle, and along the line 3 -3111 Flgure 1.

Figures 4 to 9 illustrate another embodiment of the invention applied to con ugated guns which are so mounted that the energy of recoil of one of the gun barrels 1s utilized to assist the running out of the other, and

vice versa, Figure. 4 being atop plan view partly in section; Figure 5 is asectional elevation taken on the line 5-5 of Figure 4; Figure Sis a longitudinal sectional elevation along the line 66 of Figure 5; Figure 7 1s .35 a sectional elevation taken on the line 7 7 of Figure '5'; Figure 8 is an analogous sectional View showing the members in another work ing position, and Figure 9 is an enlarged detail view of a portion of the Referring to Figures 1 to 3 inclusive, Ais the barrel in which the bore of the gun is directly made. This barrel carries, to guide it in the cradle B, a sleeve C,,for example screwed on to it at 0-, as is shown in Figure 1, and enclosing without clearance longitudinal ribs A, formingpro ections upon the front parts of the-barrel. In practice, the said ribs will be preferably formed on The sleeve C is externally rovided with vertically projecting ribs 6 which are a hoopa, which may bemade of a metal.

guided with practically 'no lateral or hori zontal clearance, but with a certain amount of vertical clearance y in corresponding grooves b in the cradle B, and with horizontally projecting ribs 0? guided in the grooves .11 in the cradle without vertical clearance,

but with a. suitableamount of horizontal clearance. The chambers formed between the consecutive ribs A and the wall of the covering sleeve C are put into communication with each other by the orifices a pierced in the ribs; this allows the air or cooling fluid to circulate throughout all the chambers. This air or cooling fluid is forced through the pipe D leading in at a point in the back part of the cradle B, and the mouth at of which is always in communication with the inside of one of these chambers, for which purpose ports 0 are provided in'the covering sleeve. v

Owing to this cooling, combined with the expansion of the gun communicated to a covering sleeve rationally guided, .a perfect idance is permanently ensured, any play in a vertical direction and in a horlzontal direction being practically suppressed and only taking place between the guiding ribs in a radial as at a. lifting or dropping of the barrel is prevented by the ribs 0 while the ribs G prevent any transverse displacement. I Referring to Figures 4 to 9 which illus-v trate an example of the application of the invention, to a group of conjugated us where the energy of the recoil of one o the gun barrels is utilized. to assist the running out of the other, and vice versa, the alternating movements in opposite directions of the two barrels, during recoil and running out, or the return to battery, are made use of to control continuously a rotary member which transmits its movement to the common shaft of two fans which deliver the cooling fluid. As in the preceding example, each of the barrels A is provided on'its front part with v a hoop -a, having radial ribs A pierced by orifices a and over which is fitted without clearance a covering sleeve C provided with vertical guiding ribs C and horizontal guiding ribs 0 sliding in corresponding grooves in'the cradle B. Above each gun is installed a fan E for forcing air or a cooling fluid through the ports 0 in the corresponding cover ng sleeve. The fans E are parted to the shaft I. For this end of the arm L, the inclined right has completed its movement of runkeyed'to, a common shaft F provided'with a driving member. such as worm wheel G.

This wheel G is driven by a worm H keyed to a shaft I the axis of which is parallel to the axes of the conjugated guns and which turns in bearings B B formed on the cradle B which is common to thetwo guns.

During firing a movement of rotation is impurpose, two

helicoidal grooves I I are cut in this shaft extending helicoidally from each other. In

one of the grooves I engages a tenon j projecting radially inside a ring J sleeved upon the said shaft I, and which may also turn,

without longitudinal displacement, in a sleeve C attached to the covering tube 0,

A groove is is formed, along a generating line, upon a shaft K turning in bearings provided on the cradle B, and the axis of which is parallel to that of the shaft I and arranged in the same vertical plane as this axis. In this groove is guided, by a cotter,

a bent lever L-M the end of one of the branches L of which can press against an inclined plane B provided on the cradle B3 The arm M of the lever engages by means of its knob shaped end m, in a sliding bar N movable radially with regard to the shaft I in a guideway-- in the covering tube 0. According to the position which each of the two bent levers IJ+M occupies during the operation, the sliding bar N enters or escapes from a notch 7' provided in the corresponding ring J.

When .one of the uns, for example the one .on the left (Fig. 5) recoils, the corresponding ring I, prevented from'turning by the sliding bar N, compels the shaft I by means of its catch to rotate. I

During this time, the end of the arm IQ of the bent lever corresponding to the other gun arrives upon the rear inclined plane B (Fig. '7), so that the corresponding sliding bar N is disengaged from the notch y' which enables thev corresponding ring J to turn with the shaft I. But as soon as the lever Ill-M of the left hand gun strikes, with the lane B on the left, the corresponding sli ing bar or bolt N is disengaged from the notch 5 (Fig. 9) at the sametime the sliding bar of the gun on the right dueto the rotarymoyement imparted by the shaft K to the corrgesponding lever L.M, engages in the corresponding notch.

The gun on the left has then completed its movement of recoil while the gun on the ningout. As soon as the gun on the right recoils', a rotary movement, in -the same direction as before, is imparted to the shaft I, owing tothe engagement of the groove I with, the catch j'of the gun on the right, which catch is then fixed. At t and of the recoil of the gun on the right, t e arm L of sponding sliding'bar N to gun and sleeve, said hoolrli being lever LM climbs up the corresponding which causes the correthe, rear incline B,

the same timeas the sliding b r N of the gun on the left engages. A substantially continuous movement of rotation of the shaft I is thus produced, and, consequently, through the transmission I-IG the 'continuous rotation of the shaft F of the fans. Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is be released, at

1. A rapid firing gun recoiling in a cradle I and characterized by the feature that the barrel comprises, for its guiding in the cradle, a sleeve, enclosin without clearance longitudinal ribs, projecting externally upon the front part of the barrel, the said sleeve being in turn externally rovided with vertically projecting ribs, fitting without any lateral or horizontal clearance, but with a certain amount of vertical clearance, in corresponding grooves, and horizontal ribs fitting without any vertical clearance, but with horizontal clearance in other grooves in the said cradle, the said first mentioned ribs being pierced by orifices to allow the circulation of air or any other cooling fluid forced into one of the chambers formed between two adjoining ribs and the wall of the covering sleeve, the delivery being made a pipe opening into the cradle. 1

form of construction of the rapid firing gun as claimed in claim 1, wherein the cooling ribs are formed upon a hoop made of a metal which is a'good conductor oil 1 heat, such as aluminium or an aluminium a o A device of the class described comprising a cradle provided with horizontal and vertical grooves, slidably engaging I said, grooves, the vertical ribs having vertical clearance and the horizontal ribs having horizontal clearance in said grooves, a gun secured to said sleeve, a hoop surrounding said gun-and provided with radially extending cooling members having engagement with said sleeve, and means for admitting the 'coolin medium to the spaces formed between sai ribs.

4. Ordnance cradle, a sleeve provided with horizontal and vertical ribs slidably mounted in said cradle, a gun rigidly connected to said sleeve, a cooling hoop. disposed between said rovided with a plurality of radia exten ing and apertured cooling members having enga ment with the sleeve, and means for supp ing a cooling medium to the spaces between the hoop and sleeve for cooling said gun.

. 5. Ordnance apparatus comprising a hoop provided with radial-ribs surrounda sleeve having ribs apparatus comprising a agun,.

in engagement therewith and having horizontally and vertically disposed guide members and a cradle provided with grooves slidably engaged by said members, the horizontal members being adapted to prevent lifting or dropping of the gun and the vertical members being adapted to prevent transverse displacement of the un.

6. A device of the class iscribed comprising a gun, a hoop provided with radially.

extending ribs surrounding the gun, said hoop being formed out of metal which is a good conductor of heat, such as aluminum, a sleeve surrounding said ribs and having engagement with the extremities thereof, a cradle surrounding said sleeve, means carried by said sleeve for guiding the gun in its recoil in said cradle, and a port in the cradle for admitting a cooling medium between the hoop and sleeve.

7 In combination with a pair of alternating recoiling gun barrels, rotary means for supplying a cooling medium to said barrels and means utilizing the recoil energy of the barrels for actuating said rotary means.

8. Ordnance apparatus comprising, in combination, conjugated gun barrels, a slide for said barrels, means for employing the energy of recoil of one barrel for running out the other barrel, rotary means for positively supplying a cooling medium to said barrels, and means energized by the recoil of said barrels for actuating said rotary means.

9. Ordnance apparatus comprising, in combination, conjugated un barrels, aslide for. said barrels, means %or employing the energy of recoil of one barrel for running out the other barrel, rotary means including a fan for supplying a cooling medium to said guns, and means utilizing the recoil energy of the guns for rotating said fan.

10. A device of the class described comprising, in combination with a cradle, a pair of guns supported thereby, and means for employing the energy of recoil to one of said guns for running out the other of said guns, a hoop surrounding each of said guns, a sleeve interposed between each of said hoops and said cradle, a fan for each of the guns, and means actuated by the recoil of said guns for rotating said fans whereby a cooling medium is supplied to the guns.

In testimony whereof I have signed this specification.

NICOLAS EMILIEN METHLIN.

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