US1021706A - Firearm. - Google Patents

Firearm. Download PDF

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Publication number
US1021706A
US1021706A US1911640942A US1021706A US 1021706 A US1021706 A US 1021706A US 1911640942 A US1911640942 A US 1911640942A US 1021706 A US1021706 A US 1021706A
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Prior art keywords
shoulder
sear
provided
extension
slot
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Charles Henry Augustus Frederick Lockhart Ross
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Charles Henry Augustus Frederick Lockhart Ross
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41WEAPONS
    • F41AFUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A3/00Breech mechanisms, e.g. locks
    • F41A3/12Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
    • F41A3/36Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/38Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes

Description

. G. H. A. P. L. ROSS.

HREARM.

APPLICATION FILED JULY27. 1911.

Patented Mar. 26, 1912.

3 SHEETS-SHEET 1.

Jag-6' @J7 nini Inni C'. H. A. F. L. ROSS.

FIREARM.

APPLICATION FILED JULY 27, 1911.

3 SHEETS-SHEET 2.

v @ww/who@ 3]?055, a, Uw/Q4 52d...

Patented Mar. 26, 1912.

` /mles vvd C. H. A. P. L. ROSS.

PIREARM.

APPLIoATIoN. FILED JULY 27, 1911.

1,021,706, Patented Mar.26, 1912.

3 SHEETS-SHEET 3.

`sion passes the pin 11 as shown.

CHARLES HENRY AUGUSTUS FREDERICK LOCKI-IART ROSS, 0F BALNAGOWN CASTLE, COUNTY 0F ROSS, SCOTLAND.

FIREARM.

To all whom 'it may concern:

Be it known that I, CHARLES HENRY AUGUS- TUS FREDERICK LooxHART Ross, a subject of the King of Great Britain, residing at Balnagown Castle, Rossshire, Scotland, have invented certain new and useful Improvements in Firearms; and I do hereby declare the following to be a full, clear, and exact description of the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to lire arms and has for its object the production of a rifle which will be certain in action, simple in construct-ion and less expensive to manufacture than similar arms heretofore proposed.

To these ends the invent-ion consists in the details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification in which like numerals designate like parts in all the viewsz-Figure 1 is a side elevational view of a rifle made in accordance with my invention and showing the operating parts in dotted lines; Fig. 2 is a view similar to Fig. 1, but showing some of the parts in sect-ion; Fig. 3 is a partly sectional view showing the parts in their after Bring positions; Fig. 4v is a side elevational view of the breech bolt; Figs. 5 and 6 are respectively a bottom plan view and an enlarged end view of the breech bolt; Fig. 7 is an enlarged sectional view of the forward end of the breech bolt and extractor, t-aken on the line 7-7, Fig. 6; Fig. '8 is a side elevational view of the firing plunger; Fig. 9 is a plan view of the receiver; Figs. 10, 11 and 12 are cross sectional views taken respectively on the lines 10-10, 11-11, and 1212 of Fig. e; Fig. is is a sectional view taken on the line 13-13 of Fig. 3; andFig. 14 is a detail sectional view of the rear end of the receiver.

1 indicates the stock, 2 the barrel, 3 the receiver, 4 the sight, 5 the trigger, and 6 the trigger guard. The breech bolt 7 is provided with an enlarged hollow extension S into which ts the hollow firing plunger 9 having a slot 10 through which said exten- Fitting the interior of the plunger 9 and resting against the pin' 11 is the iring spring 12,

Specification of Letters Patent.

Application filed July 27, 1911.

and carried by said plunger and preferably Serial No. 640,942.

rigid therewith is the sear lug 13 havingV the shoulder 14.

The breech bolt 7 is slotted at 15, 16 and 17 as shown in Fig. 6. In the slot 15 fits the extractor 18 pivoted at 19 and having the spring extension 20.

In the slot 16 fits the firing pin 21 whose' head 22 extends into the breech bolt extension 8 and is, adapted to be struck by the firing plunger 9 as indicated in Fig. 3. The

slot 17 accommodates the ejector 25, and the receiver 3 is provided with an annular shoulder 26 against which the enlarged rear end of the breech bolt may take when in its forward position. v

The breech bolt extension 8 is provided on its bottom with a lug 2S and a slot 29 through which the sear lug 13 plays. Pivoted at 30 is a holding dog 31 provided with lever 3l and whose lower end 37 is nor-` mally pressed away from said dog by the spring 38. The said sear lever 35 is also provided with a sear nose 40 adapted to engage the shoulder 14 on the lug 13 as shown. The lower side of the receiver 3 is providedwith a slot 41 to accommodate the parts, and the sear lever is provided with a pin 42 against which takes a spring 43 secured at 44 to the receiver. Pivoted on the pin 42 is thetrigger 5 provided with the fulcrum or lug 46 adapted to normally rest against the receiver as shown. In order to more firmly hold the said fulcrum in place the spring 43 is provided with a tongue 48 which takes under said lug 46, thereby constituting a yielding pivot for the trigger.

The receiver 3 is provided with a slot 50 Patented Mar. 26, 1912.

in which the operating handle 51 plays, and

cap is screwed in place, snaps into said slot 50 and securely holds the cap 52 in place. Said cap may also be provided with a sight 57 provided with the spring 5S and controlled by the adjust-ing nut 59 mounted on the pin 60.

The operation of my vimproved firing mechanism is as ollowsz-The breech bolt and firing plunger is moved to the rear by means of the handle 51, whereupon a cartridge is inserted through the opening 65 in the receiver, and pushed into firing position by a reverse movement of the handle 51 and bolt 7 Upon moving the bolt forward, however, the shoulder 14 on the lug 13 which previously occupied a position in the rear of the sear nose L10, now catches on said nose, prevents the firing plunger 9 from moving forward with the bolt, and at the same time causes the spring 12 to be placed under compression, thereby cocking the piece. Also when the bolt 7 is in its tiring position the detent 33 takes up its locking position under the action of the spring, and if its face 34 is sufficiently abrupt, said detent firmly holds said bolt against recoil upon firing, otherwise the force of explosion blows the bolt back without requiring the aid of the handle 51. The piece being cocked as described, a pull on the trigger disengages the sear nose from the shoulder 111 and the firing plunger moves forward under the action of the spring 12 and strikes the firing pin head 22, which causes the iiring pin 21 to explode the cartridge. If the gun is wholly operated manually; the locking dog 31 is now swung on its pivot by pressing the end 32 with the finger, and the detent 33 is disengaged rom the shoulder 28, whereupon the bolt is manually retracted by means of the handle 51, the cartridge shell ejected by coming in contact with the ejector 25, a new cartridge inserted through the opening 65, and the piece recocked in the manner above disclosed. On the other hand if the gun is not to be entirely operated manually, but is to be partially automatic, the inclined surface 84 is so chosen as to permit the bolt to be blown back and the cartridge extracted by the force of the explosion. A new cartridge is then inserted in any suitable manner, and the bolt returned'in order to recock the piece. Should it be desired to carry the gun loaded but not cocked the parts may be broughtinto the positions shown in Fig. 3.

It is obvious that those skilled in thev art may vary the arrangement of parts and details of construction without departing from the spirit of my invention, and .therefore I do not wish to be limited to such features except as may be required by the claims.

What I claim is V 1. In a fire arm' the combination of a breech bolt provided with an extension; a tiring pin carried by said bolt; a shoulder carried by said extension; a detent adapted to engage said shoulder; a firing means independent of said pin carried by said eX- tension; a shoulder carried by said firing means; a sear coacting with said last mentioned shoulder; a trigger controlling said sear; and means independent of said trigger for moving said detent out of engagement with said shoulder, substantially as described.

2. In a fire arm the combination of a breech bolt provided with an extension; a iring pin carried by said bolt; a shoulder carried by said extension; a detent adapted to engage said shoulder; a firing means independent of said pin carried by said eXtension; a shoulder carried by said firing means; a hand operated lever controlling said detent; a sear coacting with said last mentioned shoulder; and a trigger controlling said sear, substantially-as described.

3. In a fire arm the combination of a breech bolt provided with an extension; a tiring pin carried by said bolt; a shoulder carried by said extension; a detent provided with a inger piece and adapted to engage said shoulder; a tiring means independent of said pin carried by said extension; a shoulder carried by said firing means; a spring controlled lever coacting with said detentand provided with a sear coacting with said last mentioned shoulder; and a trigger independent of said lever for controlling said sear, substantially as described.

4. In a lire arm the combination of a breech bolt provided with a slot and having a hollow slotted extension; an ejector located in the slot of the breech bolt; a tiring plunger located in the hollow extension and having a sear lug provided with a shoulder extending through the slot of said eXtension; a detent adapted to retard the rearward movement of said bolt; a sear coacting with said shoulder; and a trigger pivoted to said sear; substantially as described.

5. In a fire arm the combination of a breech bolt provided with a slot and having a hollow slotted extension; an ejector located in the slot of the breech bolt; a firing plunger'located in the hollow extension and having a sear lug provided with a shoulder extending. through the slot of said eXtension; a detent adapted to retard the rearward movement of said bolt; a sear pivoted concentrically with said detent coacting with said shoulder; and a spring controlled trigger pivoted to said sear; substantially as described.

6. In a fire arm the combination of a breech bolt provided with a slot and having a hollow slotted extension; an ejector located in the slot of the breech bolt; a ring plunger provided with a spring located in the hollow extension and having a Sear lug provided with a shoulder extending through gaging said shoulder and provided with a inger piece; a firing plunger carried by said extension having a sear lug extending through the slot thereof; a pivoted sear lever coacting with said detent and lug; and a spring controlled trigger pivoted to said sear lever; substantially as described.

8. In a re arm the combination of a slotted breech bolt having a slotted extension` provided with a shoulder; a tiring pin lo cated in the slot of said breech bolt and eX- tending int-o said extension; a pivoted de tent engaging said shoulder and provided with a finger piece; a flaring plunger carried by said extension having a scar lug extending through the slot thereof and adapted to strike said tiring pin; a pivoted sear lever coacting with said detent and lug; and a spring controlled trigger pivoted to said sear lever; substantially as described.

9. In a lire arm the combination of a breech bolt having a plurality of slots; an extractor located in one of said slots; a ring pin located in another of said slots; an ejector located in a third slot a slotted hollow extension rigid with said bolt; a hollow tiring plunger located in said extension; a firing spring located in said hollow plunger; a lug carried by said extension; a detent coacting with said lug; a sear lug carried by said plunger and a sear and trigger pivoted together coacting with said scar lug; subst-antially as described.

, 10. In a fire arm the combination of a ring plunger; a Sear lug carried by said plunger; a pivotedsear lever coacting with said lug; a trigger provided with a ulcrum pivoted to said lever; and a two part spring one portion of which bears on the pivot between said lever and trigger, while the other portion bears on said fulcrum; substantially as described.

11. In a tire arm the combination of a slotted receiver provided with a reduced front and an enlarged rear bore; an operating handle reciprocating in the slot of said receiver; a screw threaded connection for the barrel carried by the front end of said receiver; a screw threaded cap closing the rear end of said receiver; an ejector passing through the walls of said receiver and projecting into said reduced bore; and a latch adapted to enter said slot for holding said cap in place, substantially as described. y

l2. In a fire arm the combination of a slotted receiver provided with reduced and enlarged bores; an ejector passing through the walls of the receiver and extending into said reduced bore; said receiver also rovided with a shoulder against which the breech bolt is adapted to take at the junction of said reduced and enlarged bores; an operating handle reciprocating in the slot of said receiver; a screw threaded cap closing the end of said receiver; an adjustable sight carried by said cap; and a spring controlled latch adapted to enter said slot for holding said cap in place, substantially as described.

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

CHARLES HENRY AUGUSTUS FREDERICK LOCKHART ROSS.

Witnesses;

W. CAMPBELL, FRED B. POULIN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

US1021706A 1911-07-27 1911-07-27 Firearm. Expired - Lifetime US1021706A (en)

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