US1268238A - Air-gun. - Google Patents

Description

W. B. GREENLEAF & E. S. ROE.

AIR GUN.

APPLICATION FILED 1ULY !7|19l6.

Patented June 4, 1918.

2 SHEETS-SHEET I.

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W. B. GREENLEAF & E. S ROE.

AIR GUN.

APPLICATION FILED JULY 17.1916.

Patented June 4, 1918 2 SHEETSSHEET 2- 3140mm m'lliam 5. GreznZeaf E??? est 5. 306

WILLIAM B. GREENLEAF AND ERNEST S. ROE, OF PLYMOUTH, MICHIGAN, ASSIGNORS Fl lfihl.

TO THE MARKHAM AIR RIFLE COMPANY, OF PLYMOUTH, MICHIGAN, A CORPORA- TION OF MICHIGAN.

AIR-GUN.

Patented June a, 1918.

Application filed July 17, 1916. Serial No. 109,775.

To all whom it may concern:

Be it known that we, WILLIAM B. GREEN- LEAF and ERNEST S. Ron, both citizens of the United States of America, residing at Plymouth, in the county of'Wayne and State of Michigan, have invented certain new and useful Improvements in Air-Guns, of which the following is a specification, reference being had therein to the accompanying drawmgs.

This invention relates to gun constructions and refers more particularly to what is known as air guns or rifles of the break down tfiype, although the invention in certain of its aspects is not limited to this particular type of gun.

It is among the objects of the invention to provide an improved air gun of that type in which the gun is cooked by what is known as breaking-down the barrel. In guns of this character it is necessary to provide means for locking the two parts of the barrel in true alinement, and the present invention particularly contemplates an improved locking mechanism for this purpose. Other objects of the invention are to provide a longitudinally-adjustable member, operable from a convenient position, for looking the two parts of the barrel in true .alinement; to.provide a self-contained unit. for the spring and locking mechanism; to provide an improved bullet or dart holding means and trigger construction; and in general to provide an improved air gun of the character above referred to.

In the drawings: 1

Figure 1 is a side elevational View of an. air gun embodying our invention;

Fig. 2 is an enlarged longitudinal section through the parts shown in Fig. 1;

Fig. 3 is a cross sectional view on the line w-m of Fig. 2;

Fig. 4 is a perspective viewof various parts detached.

Fig. 5 is an enlarged detail of the locking mechanism.

A represents the usual stock of the gun. and B the barrel section thereof. At its forward end the stock is provided with a casing C forming the housing for the trigger mechanism, spring and other parts as hereinafter set forth. The barrel is pivoted at D to the forward end of the casing C and the break-down movement of the barrel about the pivot D is utilized for actuating a lever E, secured at F to a flange G on the barrel. The rear end of this lever extends through a longitudinal slot in the lower part of the casing C, and as the barrel is rocked about its pivot D the lever E forces the spring I back under compression until the hook K catches upon the latch K of the trigger K. j

The lever is then moved back to an inoperative position as the barrel returns into alinement with the casing C, and the present invention particularly contemplates an improved locking mechanism for holding the barrel in true alinement with the casing. In detail, the mechanism for this purpose comprises a longitudinally-adjustable casing which is movable to a position into the end of the barrel so as to bridge the joint between the barrel and easing. For projecting and retracting this longitudinal-adjustable member we employ the following arrangement.

Positioned within the casing C and longitudinally movable therein is a second casing M which at its forward end fits into a seat N in the rear end of the barrel B. Thus when the casing M is in its forward position it bridges the meeting joint between the barrel and casing C, and holds the barrel in true alinement with the casing. At its rear end the casing M is provided with a transverse slot slightly inclined with reference to the axis of the casing and through this slot there projects a pin N This pin also projects through a straight transverse slot in the casing C and at its lower end is pivotally held into position by a screw or bolt O projecting through the stock A.

Whenever it is desired to break-clown the barrel for cocking the gun the pin N is moved laterally and acting on the inclined slot in the casing M will withdraw the easing out of the seat N in. the barrel. The barrel is then swung about its pivot D and through the action of the lever E forces the plunger P back against the spring I, put- J ting the spring under compression and moving the hook K 1nto loclnng engagement locked by adjusting the forward end of the casing M into the seat N, by moving the pin N 2 over to the opposite end of the transverse slot.

As it is necessary that the parts he held in rigid relation when the gun is shot we preferably employ an abutment Q in the end of the casing M which in the alined position 01 the parts engages a corresponding abutment Q, carried by the true barrel Z and normally spring-pressed rearward by a coil spring 1%. This abutment Q is fixed on the true barrel Z, which barrel together with the abutment Q, is slidable in the outer barrel section B, the true barrel being of double wall thickness to provide greater strength. Thus the forward adjustment of the casing M will'iorce the abutments into contact and carry the abutment Q back against the tension oi the spring R, this yieldably holding the abutments against each other.

F or limiting the forward movements of the abutment Q I preferably utilize the sight member S which is formed with a flange S projecting through a slot S in the barrel a suiiicient distance to form the stop for the abutment Q. It will be noticed that the casing M also forms a housing for the main spring of the gun and this casing is further provided with depending flanges T and T which have longitudinal slots U and U forming the bearing in which the pin U of the lever slides. This casing also carries the trigger, the pin of which extends through bearings V and V in the flanges T and T. The usual trigger guard Y is employed, this guard being secured at both ends to the casing C For returning the trigger to its operative position after it has been pulled, the spring W is employed, this spring being secured to a flange W on the trigger and a flange W on the casing M, the arrangement being such that the spring is placed under compression when the trigger is drawn backward. The carrying of the trigger mechanism and the spring I by the casing M allows these parts to be assembled and attached as a unit by removing the securing members X and X, and O and withdrawing the. stock A from the casing C.

The abutment Q is swaged or otherwise fixedly secured on the true barrel Z and the abutment Q is provided with an aperture Z registering with the bore of the true barrel Z, which latter is provided with means for holding the bullet or dart in place. In detail the holding mechanism comprises a light spring member Z locked in place by the abutment Q when the latter is fixed on the inner or true barrel Z, which spring exerts sufhcient pressure on the side of the bullets or darts to hold them in position until they are propelled forward by the air pressure produced in the usual manner upon releasing the spring when the trigger is pulled.

The arrangement of the spring and plunger within the self-contained unit construction has a further advantage, that all strains and jars are taken by the casing as a unit and not by the individual parts of the gun.

What we claim as our invention is;

1. In an air gun, the combination with two sections pivoted together, of a longitudinally-adjustable member within one of said sections, the end of said member being projectable into the other of said sections, and a spring pressed abutment in the last mentioned section for engaging the end of said member when in its projectedposition.

2. In an air gun, the combination with sections pivoted together, of a plunger in one of the said sections, a casing in said section forming a housing for said plun er, a spring pressed-abutmentin the other 0 said sections, and means for adjusting said casing against said spring pressed abutment and into locking engagement with the other of said sections.

3. In an air gun, the combination with sections pivoted together, of means for locking said sections in alinement, comprisinga plunger casing in one of said sections and means for projecting the end of said casing into the othero'f saidsections;

at. In an air gun, the combination with a barrel section, of a spring pressed abutment therein, and a sight member for said barrel section forming a stop for limiting the endwise movement of said abutment member.

5. In an air gun, the combination with two sections, of relatively movable abutment's, one of which is spring-pressed against the other to form a tight oint when the sections are locked in shooting position.

6. In an air gun, the combination with sections pivoted together, of means for locking said sections in alinement, comprising a plunger member having a telescopic engagement with one of said sections, means for projecting said pluiiger member to have a telescopic engagement with theother of said sections, and a spring-pressed abutment between the plunger member and the lastmentioned section adapted to be compressed by the plunger member when in its projected position. i

In testimony whereof we afliX our signatures.

WILLIAM B. GBEENLEAF. ERNEST s. ROE.

Copies of this patent may be obtained for five centseach, by addressing the dommissinnsr' of Patenta,

Washington, I). 0.

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