US1033971A - Automatic pistol. - Google Patents

Automatic pistol. Download PDF

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Publication number
US1033971A
US1033971A US61852111A US1911618521A US1033971A US 1033971 A US1033971 A US 1033971A US 61852111 A US61852111 A US 61852111A US 1911618521 A US1911618521 A US 1911618521A US 1033971 A US1033971 A US 1033971A
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Prior art keywords
spring
breech block
abutment
pistol
catch
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US61852111A
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Joseph H Wesson
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Smith and Wesson Corp
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Smith and Wesson Corp
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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
    • F41A3/64Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78Bolt buffer or recuperator means
    • F41A3/82Coil spring buffers
    • F41A3/86Coil spring buffers mounted under or above the barrel

Description

J. H. WESSON.
AUTOMATIC PISTOL.
APPLIOATION FILED APR. a, 1911.
1,033,971. Patented July so, 1912.
UNITED sTATnls raTnn FIQ JOSEPH H. WESSON, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR TO SMITH & WESSON, INCORPORATED, A CORPORATION 0F MASSACHUSETTS.
AUTOMATIC PISTOL.
To all whom 'it may concern:
Be it known that I, JOSEPH H. IVESSON, a. citizen of the United States, residing in Springlield, in the county of Hampden and State of Massachusetts, have invented an Improvement in Automatic Pistols, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.
The present invention relates to an automatic fire arm, and is shown as embodied in an automatic pistol of the so-called blowback type, in which the breech block is forced back by the reaction of the charge in firing the pistol, allowing the spent shell to be ejected and a loaded cartridge to take its place and be forced into the chamber by the return of the breech block through the action of a spring. In a pistol of this class, it is necessary to cock the pistol prior to the first discharge by manually pulling back the breech blockiwhich cocks the hammer, and allows a cartridge to come into position to be forced into the chamber, and the purpose of the present invention is to facilitate this preliminary cooking operation by providing the re arm with means for moving the breech block without bringing" the 'actuating spring into operation. This admits of the use of a much stronger spring and improves the automatic action of thepistol; and in the cooking operation the only resistance to the backward movement of the breech block is that of the hammer spring.
Figure l is a side elevation, partly in section, of a pistol embodying the invention; Fig. 2 is a transverse section on the line m2 of'Fig.- l; Fig. 8 is a similar section showing the parts in a diiferent position; Fig. 4 is a horizontal section, on the line mi of Fig. l, showing the breech block in place; Fig. 5 is a similar view showing the breech block pulled back to the cooking position; Fig. 6
is a view similar to Fig. l showing a modification; Figs. 7 and 8 are sections, on the line :1:7 of Fig. 6, showing the parts in different positions; and Fig. 9 is a horizontal section, on the line m, of Fig. 6.'
Referringto Fig. l, the pistol is provided with the blow back breech block l of the usual construction, which is adapted to cock the hammer when it is forced back by the reaction of the red charge, so that a car- Specicaton of Letters Patent.
Application led April 3, 1911.
Patented July 30, 1912. serial No. 618,521.
tridge will be delivered from the magazine into the space in front of the breech block, the said cartridge being inserted in' the chamber by the forward movement of the breech block which takes place in response to the action of a spring 2 contained-in a chamber or recess above the barrel. The said spring 2 lies between a fixed abutment 3 and a movable abutment 4 which is at the end of a rod 5 normally connected with the breech block 1, so that the backward movement thereof produces a. corresponding movement of the abutment 4, compressing the spring 2, whereby the action of the spring restores the breech block to its normal position from which it has been moved either by hand, or by the recoil action, after the pistol has been operated.
As ordinarily constructed, the rod' 5 is permanently connectedv with the breech block so that in the preliminary cocking operation, it is necessary to overcome the stress of the spring 2 as well as that of the hammer spring. In order to facilitate the cooking operation, the pistol constructed in accordance withthis invention is provided with means whereby `the breech block can be moved without a corresponding movement of one spring abutment with relation to the other, as by disconnecting the breech block from the movable abutment, so that in the preliminary cooking operation the breech block can be drawn back without compressing the spring, and then pushed forward by hand and reconnected with the movable abutment. The same result can obviously be accomplished by disconnecting the stationary abutment from the part to which it is normally connected, as will be more fully described hereinafter.
In the construction shown in Fig. 1, the abutment 3 is permanently fixed in the spring containing chamber by means of a cross pin 6 or equivalent connecting device, and the rod 5 which extends through the abutment 3 is arranged to be disconnected from the breech block through the action of a manually operated catch, thereby admitting of a movement of the breech block without a corresponding movement of one spring abutment relative to the other and consequent compression of the spring. The said rod 5 is shown as provided with an enlarged portion 7 which is contained in a recess 8 in the breech block, and lies between the back wall 9 of the fixed abutment Band a lug 10 on the top of the breech block, a portion of the lower surface of the enlarged portion 7 being iiattened, as best shown in Figs. 1, 2 and 3. The unflattened portion of the part to cooperate with a transversely movable catch 12 in the breech block. The said catch 12 consists of a sliding member located in a transverse slot cut through the breechV block 1, the Lipper surface of the catch being shaped so as to orm an upward projection which has a liat rear surface 13 and a beveled front surface Vportion 14, as best shown in Figs. et and 5. The said member also projects laterally beyond the side of the breech block so as to form a finger piece 15; and a downwardly projecting lug 16 connected with the catch bears against a spring 17 located in a recess below the catch 12 to restore the same to its normal position when released by the iinger. In its normal position, shown in Figs. 1, 2 and 4.-, the tlat rear surface 13 of the catch lies in contactwith the shoulder 11, formed bythe unflat tened part of the enlarged portion 7 so that when the breech block l moves back, the portion 7 will be carried back with it, pulling back the rod 5 and the abutment 4, and compressing the spring 2. In cooking the pistol by hand, however, it the catch 12 is pressed inward against the stress of the spring 17 the surface 13 on the catch is moved out of the path of the shoulder 11 on the part 7, thus disconnecting sai part from the breech-block 1,'so that t breech block can be moved back without pulling back the rod 5 and compressing the spring. When the Ybreech block is pushed forward, the rear wall of the untlattened portion of the part 7 will engage the beveled surface 14 of the catch 12, so that the catch will be automatically forced aside until the parts are in normal position,
when the catch will snap back to locking position through the action of the spring 17. The catch thus constitutes an automatic latching catch, so that the breech block cannot be accidentally disconnected from the spring.
Fig. et shows the breech block 1 locked to the spring rod 5; and Fig. 5 shows the catch 12 pushedV aside and the parts disconnected.
In the modied construction shown in i Figs. 6 to 9, the Vspring abut-menty 18, which lis the equivalentof the spring abutment 3,
is shown as adapted to be connected with or disconnected Jfrom the pistol frame,by means of a catch orrnger piece 19. In this construction, the spring rod is provided with a rearwardly projecting portion 20 which is cut away underneathand-provided with an opening 21 which :lits over a lug 22 formed on the upper surface of the breech'block, the
465"rear end of the projecting portion 20 lying in front of a shoulder 23, so that when the 7 thus constitutes a shoulder 11 Y arts are in the position shown in Figs 6 V and 9, the breech block 1 is permanently con-y nected with the spring rod. In this construction, the abutment 18 is shown as provided with a lateral slot or recess 24 which is normally engaged by a catch 25, shown as Y i formed at one end of a rod 26 which eprojects through the frame into a recess 27 containing a spring 28 bearing at oneV end` against the wall of the recess, and at the other end against the linger piece19.V By pressingv the spring trame, and in pulling back the breechgblock,
the said abutment 1S and the Vspring Yarego linger piece 19, therefore, the 5 i abutment 18 is released :tromthe Y* drawn back without'compressmg the sprlng, .Y
thus accomplishing the same result asy that accomplished by the construction shown in Figs. 1 to 5.
In this construction, bothlof'q; Y the spring abutments are moved with the'f breech-block, but as both are movable Yto-y gether, there isno change lin the positiontof one relative to the position of the other, and, Q1 consequently, no compressionV of the spring. i'
It is obviously immaterial whether the abutments are movable or stationary,fso
long as the position of one relative Yto thel position of the other remains unchanged; Y Y Y l/Vhile the constructions herein shownand.V Y
'described are practical and effectual, it is;y
obvious that further modifications Ymay made without departing from the invention' which is embodied in any practical means. Y
whereby the breech block can be' moved .100
without causing a corresponding,movement of one spring abutment relative to the other,r V so that the fire Varm can be cockedby hand o without compressing the s ringwhichy nor- ,Y Y
mally acts on the breech b ock.
What I claim is: Y .u 1. In an automatic pistol Vof 'i the blow back typethe combination with a movable,
breech block; of a spring located'inffront'- of thebreech block and lying betweengtwo j j abutments, one of which is Vmovable 'within the breech block, and the other stationaryy when the pistol lis assembledgYa-nd an automatic latching catch for releasing one ofthe said abutments,- whereby the 'breech blockjV canl be moved tocock the hammer withoutVV compressingV the spring.
2. In an automatic pistol, the]cornbina-yV tion with a breech block adapted tobe moved in ,one direction by the reaction of the ei:-VV
ploding charge; of a spring normally adapted to move said breech block inthe'oppy.V Y site direction; abutments between which theV spring is normally compressed by Vthe move- Y, Y,
ment'of one abutment relative tothe other,
one of said abutments being movablewith' the breech block, and the otherl stationary Y when the pistol is assembled; and an automatic latching lcatch wherebyV Vone ofsaid f abutments can be released to admit fofytheV cooking of the hammer Without compressing the spring which acts on the breech block when the pistol is in operation.
3. In an automatic pistol, the combination with a breech block; of a spring located in front of the breech block; an abutment for one end of the spring movable with said breech block when the pistol is assembled; a stationary abutment for the opposite end of the spring; and a manually operated device for disconnecting said spring from one of said abutment-s, whereby the pistol, when assembled, can be cocked without compressing the spring.
4. In an automatic pistol, the combination with the breech block; of a rod connected therewith and provided at one end with a spring abutment, the said rod and abutment being l contained in a recess in front of the breech block; a xed spring abutment at the opposite end of said recess; and an automatic latching catch eX- tending laterally across said breech block and adapted to connect the breech block with, or disconnect it from, said rod.
5. In an automatic pistol, the combination with the breech block located behind the barrel; of a rod projecting forward from said breech block into a recess above the barrel, said rod being provided at its forward end .with a springabutment; a second spring abutment normally fixed in the said recess; a spring located between the said abutments; a connecting member at the rear end of said rod provided with a transverse shoulder; and an automatic latching catch located in the breech block, said catch having a shoulder normally lying in front of the transverse shoulder of the connecting member to connect the breech block and the rod, and also having a beveled front shoulder, substantially as and for the purposes described.
In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.
HAROLD K. SoHorr, DOUGLAS B. WnssoN.
Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.
US61852111A 1911-04-03 1911-04-03 Automatic pistol. Expired - Lifetime US1033971A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140317979A1 (en) * 2013-01-29 2014-10-30 Greg Carlson Pulse recoiling system
US20170268843A1 (en) * 2013-09-13 2017-09-21 Heizer Defense, LLC Semi-automatic firearm trigger mechanism and safety device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140317979A1 (en) * 2013-01-29 2014-10-30 Greg Carlson Pulse recoiling system
US20170268843A1 (en) * 2013-09-13 2017-09-21 Heizer Defense, LLC Semi-automatic firearm trigger mechanism and safety device

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