Improvements in Magazine Fire Arms.
Year: 1896

page_text: Date of Application, 9th May, 1896-Accepted, 13th June, 1846
[Communicated from abroad by THE LEE ARMS COMPANY, of 195 Sigourney
Street, Hartford, Connecticut, United States of America.]
Improvements in Magazine Fire Arms.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to improvements in that class of fire arms comprising
bolt guns. Some of these improvements are applicable to other types of guns,
but they are all herein shown in their application to a fire arm similar to that
shown and described in the Specification of Letters Patent of James P. Lee,
No. 18866 dated October 8th 1895 the devices comprised in my present inventiou
being improvements upon certain features of the fire arm therein shown.
The general objects of the said invention are to simplify and cheapen the
construction and improve the mode of operation of certain features of guns of the
class specified, and to render them more convenient and certain in operation. These
general objects may for convenience be divided into the following specific objects:
First, to provide reliable and simple means for actuating the cartridge elevator.
Second, to provide an improved visible index, by means of which the number of
cartridges contained in the magazine may be seen at a glance without the
necessity of selecting a certain designated figure from a visible series of figures.
Third, to provide simple and effective means for locking the actuator arm of the
bolt in its closed position against the accidental backward or opening movement
thereof. These means while operating to resist the bolt opening tendency of blows
or other impulses acting upon the bolt itself, yet yield readily to the hand of the
operator when applied upon the handle of the bolt actuator. By these means we
are enabled to dispense with the employinent of auxiliary locking devices analogous
to the back lock actuator of the above mentioned Patent, and with the additional
movement on the part of the operator as a preliminary to opening the breech when
the parts are in their firing position. Fourth, to provide means whereby the
firing pin may be locked in its forward and in its backward position with respect
to the bolt while the latter is in its closed position, said means serving when
locking the firing pin in its rearward or cocked position to draw the catch of the
firing pin away from the sear, and also serving whether locking the firing pin at
its forward or its rearward position, to lock the bolt with relation to the receiver.
Fifth, to provide simple and efficient means for performing the several functions of
retaining the firing pin lock end wise in its seat in the receiver so as to prevent its
withdrawal therefrom, and for imposing frictional resistance to the rotary move-
ment of the firing pin lock so as to retain it in the positions to which it is moved
by the operator, for operating in conjunction with the extractor to eject the shell,
and for forming an effective stop for the rearward movement of the bolt which
stop can be readily moved aside to allow of the entire withdrawal of the bolt from
the receiver.
Figure 1 of the drawings is a right hand side view in vertical longitudinal
section, showing the bolt mechanism and the firing pin mechanism in the positions
occupied by them when the bolt is locked in its extreme forward closed position,

page_text: with the firing pin retracted in readiness for firing the gun. A portion of the
right hand side of the magazine, with its index, and also the cartridge elevator
with its actuating means, are shown in their relative positions in front of the plane
of section.
Figure 2 is a right hand side view of a portion of the cartridge elevating and
cartridge index mechanisms, showing a single cartridge in the magazine.
Figure 3 is a plan view of a portion of the parts shown in Figure 2, the bolt
being omitted.
Figure 4 is a front end view, and
Figure 5 is a rear end view, of the parts shown in Figure 2.
Figure 6 is a right hand side view of a portion of the gun, the receiver and a
portion of the sear being broken away so as to show the depressed position of the
back lock as the actuator is drawn back by its handle to open the gun when the
parts are in the position shown in Figure 1.
Figure 7 is a side view, and
Figure 8 is a plan view of a portion of the bolt, the receiver and the extractor,
and showing the construction and arrangement of my improved bolt stop.
Figure 9 is a view in section taken on the line 9-10 of Figure 7, looking
toward the right in that figure, and showing my improved bolt stop in its upper or
bolt stopping position.
Figure 10 is a similar view in section taken on the same line, showing the bolt
stop pressed to its lowest position to allow of the withdrawal of the bolt from the
receiver.
Figure 11 is a plan view of my improved firing pin lock,
Figures 12 and 13 are rear and front end views respectively of said lock.
Figure 14 is an inner side view of the firing pin lock, and bolt stop, and
Figures 15 and 16 are cross sectional views taken on the lines 15-15 and 16-16,
respectively, of Figure 14.
Figure 17 is a plan view, and
Figure 18 is a left side view of the firing pin lock shown in its open or unlocked
position with relation to the firing pin, which is therein represented by full
lines in its rearward position and by dotted lines in Figure 17 in its forward
position.
Figure 19 is a plan, and
Figure 20 is a left side view of a portion of the firing pin in its forward position
and of its lock turned over into locking relation therewith. The latter view shows
also a portion of the bolt actuator in order to illustrate how this rearward or
opening movement is prevented by locking the firing pin in its forward position as
shown therein.
Figure 21 is a plan view, and
Figure 22 is a left side view of the firing pin lock in its locking position
with relation to the firing pin which is drawn back clear of its sear so as to
allow of the idle movement of the latter, as represented by dotted lines in
Figure 22.
Figures 23 and 24 are rear end views of the bolt, the firing pin, a portion of
the receiver, and the firing pin lock, the two latter being shown in cross section,
Figure 23 representing the firing pin locked in its open or unlocked position,
while Figure 24 represents it in locking engagement with the firing pin.
Figure 25 is a similar rear view of the bolt, its firing pin, and the receiver,
the firing pin lock being omitted therefrom in order to show the parts more
clearly.
Figure 26 (Sheet 1) is a view of the sear, the back lock, and the main spring,
looking from above in a direction substantially at right angles to the rearwardly
projecting member of the sear.
Figure 27 is a view looking from the forward or right hand side, of the parts
shown in Figure 26.
Figures 28 and 29 are side view and plan respectively of the bolt stop.

page_text: In the organization of parts shown in the drawings, the magazine frame, the
trigger guard plate 62, the guard block 59, the stock D, the barrel C, the
receiver B, the bolt E, the bolt actuator F, Figure 20, the firing pin 25,
the spring 32 of said pin, and the combined extractor and ejector X Figure 8,
are in a general way similar in construction, arrangement and mode of operation
to the similarly designated parts shown in the Specification of Letters Patent above
referred to.
The fire arm is provided with a magazine designated in a general way by M,
consisting of a mortise extending vertically and longitudinally through the receiver
near the forward end thereof, and adapted to receive a packet of cartridges, which
are pressed upwardly toward the plane of the bore of the gun by means of a
cartridge elevator consisting of a lifting arm 230, journalled at its forward end in a
bearing 231 in the vertical block 59 and of a follower 184 pivotally mounted at the
rearward end of the lifting lever 230. This follower is provided with rearwardly
projecting arms adapted to engage with cam faces 233 adjacent to the side walls
of the magazine, which cams co-operate with the arms of the follower to hold the
latter during its ascending movement in the requisite relation for presenting the
upper cartridge to the firing chamber of the gun substantially in the manner and
for the purpose set forth in the Specification above referred to.
My improved means for actuating the cartridge elevator will now be described:
The two side members of the lifting lever 230 are extended forwardly beyond
their pivot 231 to form arms A', A2 which extend upon opposite sides of a thimble
located in the central plane of the magazine, and fitted to slide freely upon a
screw 60, which may also serve to fasten the forward end of the magazine frame to
the receiver. The thimble is provided with laterally extending wings A³, A,
which are notched or grooved on their under sides to receive the arms A', A2 of
the lifting lever 230 the bottoms of the grooves being rounded so as to better suit
the rolling and sliding contact of the arms therewith.
The thimble A is normally pressed downward by means of a spring A' coiled
around the screw 60, and abutting against the lower side of the receiver, the
compression of the spring being made great enough to elevate the cartridges with
sufficient positiveness. The direction of movement of the thimble is tangential to
that of the arms A', A2 thus causing the spring to exert its pressure in a straight
line, and permitting the use of a simple and inexpensive spiral spring. The nature
of the engagement of the wings of the thimble with the arms A, A, prevents the
thimble from turning upon the screw while permitting free longitudinal motion
thereon.
My improved cartridge index consists of an approximately semi-circular dial 1,
which is shown to be pivotally mounted upon the right hand wall 61 of the
magazine M. The said dial is provided with a slot I', which is engaged by the
pin 1 on the lifting lever 230, the movements of the latter as controlled or limited
by the cartridges in the magazine being thus utilized to turn the dial I upon its
pivot Is. The dial is located close against the wall 61 of the magazine and is
provided with numerals, each so located thereon as to he visible through an
aperture I in the wall 6' when the corresponding number of cartridges is contained
in the magazine, as will be observed by a comparison of Figures 1 and 2.
A great advantage of this method of indication resides in the fact that the eye
of the operator is not confused by having an entire series of numbers of graduations
always in sight, as in some of the previously existing methods wherein it is
necessary for the operator to direct his eye along the series to the particular figure
or graduation indicated by a pointer controlled by the cartridges. In my present
method the eye of the operator is always directed to the same point, namely, the
aperture 1 at which nothing but the correct numeral appears, a single, definite,
and correct impression being instantaneously conveyed to the mind of the operator
without confusion, hesitation, or error, such as may easily and frequently result
from his attempts to distinguish a particular one of a visible series of figures.
A further important advantage of this arrangement arises from the fact that the

page_text: parts are all closed within, and protected by, the framework and magazine walls of
the gun, there being no projecting external levers or pointers connected with the
elevator whereby its operation may be interfered with, or stopped altogether,
through becoming bent or clogged by contact with external things, such as dirt,
twigs, or blades of grass.
My improved means for locking the actuator arm so as to prevent accidental or
unintentional opening of the bolt from its closed position shown in Figure 1, is best
represented in that figure, and in Figures 6, 26, and 27. The sear N is pivotally
mounted at N¹ to a convenient lug upon the frame, the rearwardly extending sear
arm being adapted to engage with the catch 26 of the firing pin in a manner
similar to that of the corresponding parts in the Specification above referred to.
The forward portion of the sear is divided longitudinally into two side members,
between which is located the hook or back lock N for the actuator arm 33. This
book is also mounted upon the pivot at N¹ and its movements are therefore
concentric with those of the sear N2. The rear end face N of the hook N is
adapted to bear against the sear at the end of the slot which divides the sear, and
is normally pressed into contact with the sear by the spring N, one end of which
engages with the hook and the other end with a portion of the frame or fixed
adjacent portion of the receiver. The spring N tends to normally hold the
face N of the hook to its seat in the sear, thereby also pressing the rearwardly
extending sear arm upwardly against the catch 26 of the firing pin. The trigger Ne
is pivotted in the usual way upon the receiver, and its upper portion is fitted into
the longitudinal slot in the lower portion of the scar, being operatively connected
therewith by means of the pin N. The spring Nis thus made to effectively serve
the hook, the sear and the trigger.
The face N3 of the hook N which engages the actuator arm 33 is preferably
made substantially at right angles to a line running therefrom to the pivot N¹ of
the hook, and this face of the hook is made to engage the rearward side of the
actuator arm, as shown in Figure 1, when the other parts are in the position
shown in said figure. By reference to the description contained in the Specifi-
cation above referred to, of the mode of operation of the actuator arm, it will be
understood that the bolt cannot be unlocked from the closed or firing position
shown in Figure 1 without moving that actuator arm rearwardly, and that rearward
movement of the actuator arm is herein prevented by means of the face N³
of the hook N of my present invention with a sufficient degree of certainty to
counteract the accidental jars or blows to which the fire arm may be subjected in
handling.
When it is desired to open the bolt of the gun, sufficient pressure is applied to
the actuator handle by the operator to cause the actuator arm 33 to ride over and
depress the hook N against the pressure of its spring, as shown in Figure 6, from
which position the opening movement of the actuator and bolt is continued exactly
as described in the Specification referred to, the hook returning again to the
position shown in Figure 1 after the actuator has passed it, thus resuming its
pressure upon the sear. In the operation of closing the bolt, the actuator arm
rides over and depresses the hook N from its rearward side, the parts again
assuming the relative positions shown in Figure 1. The operator by acting upon
the actuator handle has the advantage of increased leverage over the resistance of
the hook to the movement of the actuator arm 33 and is thus enabled to easily
overcome the pressure of the spring N4 which is sufficient to resist the breech
opening tendency of shocks due to the manipulation of the fire-arm acting directly
upon the actuator arm and its hook.
It is obvious that the hook N is equally effective in retaining the actuator arm
whether the firing pin is in its cocked position in engagement with the sear, as
shown in Figures 1 and 6, or whether that firing pin is in its forward or discharged
position.
As a means of locking the firing pin, both in its discharged and in its cocked
positions, and for retracting it from its cocked position shown in Figure 1, so as to

page_text: move out of engagement with the sear, and thus prevent the accidental discharge
of the gun, I have provided a firing pin retracting and locking device so arranged
relatively to the firing pin and to the bolt as to lock the latter in its closed position
with relation to the receiver, whether the firing pin is in its cocked or its discharged
position relatively to the bolt.
My improved means for locking the firing pin with relation to the bolt when the
latter is in the closed position shown in Figures 1 and 6, may best be seen by a
reference to Figures 11 to 25 inclusive. The firing pin lock comprises a thumb
piece T', which projects rearwardly of the receiver, as shown in Figures 1, 6 and 8
so as to be conveniently reached by the thumb of the operator, and a cylindrical
extension of the thumb piece, preferably integral therewith, and fitted in a cylindrical
bore in the rear end of the receiver, located adjacent to and parallel with the firing pin
when the latter with its bolt is in its locked position, as shown in Figures 1 and 6.
The arm 26 of the firing pin 25 is provided with a locking lug T2 which extends into
and occupies the lower right hand quadrant of the circle representing the cylindrical
bore for the seat of the firing pin lock, as shown in Figures 23, 24 and 25. One
half of the cylindrical portion of the firing pin lock is cut away longitudinally to a
plane passing through the axis thereof, as shown in Figures 11, 17 and 21, leaving
the cylindrical portions T3, and T intact to form the bearings on which the lock
turns in the receiver, the semi-cylindrical portion being thus cut away for the
purpose of permitting the necessary longitudinal movement of the lug T2 of the
firing pin with relation to its bolt, as represented in Figure 17 when the lock is in
its unlocked position shown in that figure.
Portions of the remaining semi-cylindrical portion of the firing pin are cut away
to form the forwardly facing shoulder T and the rearwardly facing shoulder Te
respectively, the recesses between those shoulders and the cylindrical portions T
and T being of a sufficient width to receive the lug T2 when the lock is turned to
its locking position. The shoulder T is located in a position suitable for locking
the firing pin lug in its forward position, shown in Figures 19 and 20, and the
shoulder T is located in a position suitable for locking the firing pin in its
rearward position, as shown in Figures 21 and 22.
It should be observed that it is not considered sufficiently safe to lock the firing
pin in the position shown in Figure 1 without slightly retracting it from the sear,
as shown in Figure 22. If the pin were to be locked while held by the sear, as
shown in Figure 1, and if the sear were then moved away by the accidental or
inadvertent pulling of the trigger, the firing pin would be liable to settle forward
slightly, so that the sear could not return to its previous position to again engage
with and support the catch of the firing pin. The gun would therefore be pre-
maturely discharged by the operation of releasing the pin from its safety lock. To
obviate this danger I have arranged the parts as herein described, so as to transfer
the tension of the firing pin wholly from the sear to the firing pin lock, so that if
the sear should be moved away by the accidental or inadvertent pulling of the
trigger, it will return without hindrance to its full line position shown in Figure 22,
ready for engagement with the catch of the firing pin when the latter is released by
the turning back of its safety lock.
As a means of thus retracting the pin, the shoulder T is bevelled, as best shown
in Figures 11, 14 and 17, so as to enable the lock in turning from the position
shown in Figure 17 to that shown in Figure 21 to move the firing pin rearwardly
to an extent-best seen by comparision of Figures 18 and 22, so as to allow the
sear N and its hook to move freely back and forth from the full line position to
the dotted position indicated in Figure 22.
The distance apart of the two shoulders T and Te is made to suit the extent to
which the firing pin is moved with relation to its bolt in the operation of cocking
and discharging the piece, that extent of movement being shown by a comparison
of the dotted line position and the full line position of the firing pin and its lug T',
shown in Figure 17. The additional backward movement of the pin from the
position shown in that figure, to that shown in Figures 21 and 22 is for the purpose

page_text: of transferring the tension of the firing pin spring from the sear N³ to the firing
pin lock so as to allow idle movement of the sear and its trigger for purposes of
safety, as above described.
By reference to Figure 20 it will be seen that the firing pin when locked in its
forward position, as shown in that figure, serves to lock the bolt in place, since the
actuator arm 33, by means of which the bolt is opened, is prevented from backward
movement by the depending arm 26 of the locked firing pin.
The operation of locking and unlocking the firing pin, whether in its forward
or its rearward position, is performed by turning the firing pin lock substantially
through half a rotation upon its bearings T3 and T in the receiver, from the
position shown in Figures 17, 18 and 23 to that shown in Figures 21, 22 and 24,
and this extent of rotary motion toward its locking position is established by
means of the stop T, which collides with the shoulder T (Figures 1 and 6) on
the receiver, while the rotary movement of the lock toward its unlocking position
is regulated by contact of a locking rib T with the bottom of a recess T2 in the
receiver.
In addition to performing the function of locking the firing pin against longi-
tudinal movement, the firing pin lock is also utilized to lock the bolt of the gun in
its closed or firing position by means of the bottom walls T4, T5 of the recesses
adjacent to the shoulders T, To respectively. Inasmuch as the firing pin is so
mounted in the bolt as to be capable only of longitudinal movement with relation
thereto, it follows that the locking of the firing pin against transverse movement
relatively to the receiver, would also operate to similarly lock the bolt, it being
necessary to raise the bolt in order to disengage its shoulder 24 from the recoil.
abutment 22 as a preliminary to retracting the bolt to its open position. Therefore
when the firing pin lock is turned to its locking position, the upper surface of the
lug T2 on the firing pin arm 26 is engaged by the wall T14 of the lock, as shown in
Figures 19 and 20, when the firing pin is in its forward position, and by the wall T15
when the firing pin is in its backward or retracted position, as shown in Figures 21
and 22.
As the upper surface of the lug T2 is radial to the axis of the firing pin
lock it follows that the walls T14 and T¹s which are also radial to that axis will
coincide with said upper surface of the lug T2 when turned to the locked position,
as best shown in Figure 24. As the upper surface of the lug T2 extends to the
axis of the firing pin lock the upward movement of the lug necessary to open the
bolt, has practically no tendency to turn back the lock, which therefore imposes a
sufficiently positive lock against upward or opening movement of the firing pin, and
consequently of the bolt in which the pin is mounted.
As an additional means of locking the bolt to the receiver, operating directly
upon the bolt itself, the bolt is provided at its rearward end with the shoulder T1,
over which the locking rib To is adapted to pass, as shown by dotted lines in
Figure 25, when the lock is moved to its locking position. The rib T10 is fitted
tightly over the shoulder T3 of the bolt, thus operating to lock the bolt firmly in
place in the receiver, and also reacting upon the lock itself to hold it in its locked
position by frictional contact.
As a means of retarding the firing pin lock endwise in its seat in the receiver,
I have provided a simple device, which also serves as a stop for the rearward
movement of the bolt, when in operation, and which may readily be depressed so
as to enable the bolt to be withdrawn from the receiver. This combined bolt stop
and firing pin lock retaining piece is preferably formed in an integral piece V,
which is fitted to slide in the left hand wall of the receiver, as shown in Figures 7,
8, 9 and 10, and is provided with a spring V', which rests upon a seat made in the
stock of the gun, and normally presses the stop upward to the bolt stopping position
shown in Figures 7 and 9. The piece V is preferably checked or knurled at its
upper end to afford a good hold for the thumb of the operator, and is provided at
its rearward side with an incline cam face 216 corresponding to the similarly shaped
and designated cam of the stop abutment of the Specification above referred to, and
this portion of my improved bolt stop perforins exactly the same functions that are

page_text: performed by the corresponding parts shown in that Specification, which are to.
stop the rearward movement of the bolt, and to throw the rearward end of the
extractor X abruptly endwise, causing its forward end to be thrown inward, and
thus serving to eject the cartridge shell.
The position of the bolt stop in which it performs the functions just described,
is that shown in Figures 7 and 9, to which it is normally pressed by the operation
of its spring V1, being thus held within the path of movement of the extractor, as
shown in those figures. By depressing the bolt stop against the pressure of its
spring, as shown in Figure 10, the operator may carry the extractor engaging
abutment or cam 216 of the bolt stop below the path of movement of the extractor,
so as to enable the bolt and its extractor to be withdrawn rearwardly from the
receiver. In order to replace the bolt in the receiver it is only necessary to press
the bolt stop downward again to the position shown in Figure 10, until the
extractor is carried past that bult stop, when it again resumes the position shown
in Figures 7 and 9.
As a means of retaining the firing pin lock end wise in position in its cylindrical
seat in the receiver, the forward end of the lock is provided with an annular
groove T, leaving an annular rim or head T, which is adapted to enter a
groove V2 see Figure 15 upon the inside of the bolt stop V. This groove is
preferably made by a milling cutter of the form of the forward end of the firing
pin lock, and extends from the upper end of the belt stop far enough to allow of
the necessary movement of the latter, as represented in Figures 9 and 10, the cut
terminating with a rounded recess, as shown in the latter figure, which when the
bolt stop is pushed up by its spring V¹, presses against the groove T and the
head T of the firing pin lock. The latter is thus made to limit the upward
movement of the bolt stop, while the pressure of the bolt stop against the lock
offers a sufficient frictional resistance to the rotary movement of the firing pin lock,
and thus serves to hold the latter in the two positions to which it is moved by the
operator.
When assembling the firing pin lock and the bolt stop in the receiver, the firing
pin lock is first pushed fully into its cylindrical seat in the receiver, then the bolt stop
is pushed upward from below, the spring V₁ is placed in position, and the stock is
then applied to the receiver, thus serving to hold the bolt stop in position by
affording a resting place or abutment for the lower end of the spring, a recess
being made in the stock for this purpose, as shown in Figure 7. which may,
desired, be fitted with a metallic thimble to receive the end of the spring.
if
It is not an essential feature of this invention that the locking portion of the
pin be a mutilated cylinder. Various modified forms thereof may be provided
with locking shoulders adapted to be moved by the rotation of the lock into
engaging relation with the firing pin. But I prefer the form shown, as being
simple, and easily and cheaply manufactured.
The radial faces of the quadrant shaped portions of the lock shown in cross
section in Figures 15 and 16 might be adapted to serve as stops for the two
positions of the lock against the corresponding faces of the lug T of the firing pin
only when the bolt is in its closed position. But in order to provide the pin with
stops which will remain in constant relation to it, I have arranged the stop Ts and
the locking rib T10, and their co-acting shoulders on the receiver, to serve as stops
for this purpose.
The resistance of the back lock N to the movement of the actuator arm may
best be varied by altering the angle of the hook N³ with relation to the direction
of movement of the actuator arm.
It is not essential that the pivots of the sear and the back lock be coincident.
The latter may be pivotted upon the sear at any convenient point thereof which
allows of a suitable movement of the back lock relatively to the actuator arm, and
in many other analogous ways the details of construction may be modified without
departing from the spirit of the invention.

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is :-
1. The combination, with the cartridge elevator, of a thimble adapted to engage
therewith and a spring adapted to actuate the elevator through the medium of the
thimble, substantially as described.
2. The thimble mounted adjacent to the pivot of the cartridge elevator with a
capability of tangential movement in relation to the elevator and provided with
oppositely extending wings adapted to engage with arms of the elevator, which
arms extend on opposite sides of the thimble into engagement with the wings
thereof, substantially as described.
3. The combination with the cartridge elevator, of a pivotally mounted
indicating dial operatively connected therewith and provided with numerals so
located thereon that each is brought to a position where it can be seen through a
sight aperture when the number of cartridges contained in the magazine
corresponds to such numeral, substantially as described.
4. In combination with the side wall of the magazine provided with a sight
aperture for the purpose specified, and with the cartridge elevator, a cartridge
indicating dial consisting of a flat disc pivotally mounted upon the inner side of
the side wall, having a series of numerals capable of being brought singly into
coincidence with the aperture, and having a slot adapted to be engaged by a pin
located on the cartridge elevator, whereby the dial is moved so as to expose to
view the numeral corresponding to the number of cartridges contained in the
magazine, substantially as described.
5. The yielding back lock consisting of a hook pivotally mounted adjacent to
the actuator arm and provided with a spring adapted to press the hook into
engaging relation to the said arm, the engaging portion of the hook being made
at such an angle with relation to the opening movement of the actuator arm as to
impose the desired degree of resistance to such movement while permitting the
actuator arm to yield to the hand of the operator, substantially as and for the
purpose described.
6. The combination, with the sear and with the actuator arm, of a back lock
pivotally mounted upon the sear, and constructed to engage with the actuator
arm and to abut against a portion of the sear, and a spring adapted to bear against
the back lock whereby the said lock and the sear are normally pressed toward
their engaging relation with the actuator arm, substantially as and for the purpose
described.
7. In a fire arm, in combination with the firing pin and with the actuator arm
thereof, the herein described combination of the sear, trigger, back lock and spring
therefor, the sear and the trigger being pivotally mounted upon the fire arm, and
operatively connected, the back lock being located in a slotted bifurcation of the
sear and pivotally mounted concentrically therewith, and provided with a portion
adapted to abut against and limit its movement with respect to the sear, the spring
being operatively connected with and adapted to press the back lock to its seat in
the sear, serving as the only spring for the sear, the back lock and the trigger,
substantially as described.
8. A firing pin lock for the purpose specified, provided with a locking portion
of substantially a semi-cylindrical form cut away to form locking shoulders for
the forward and rearward positions of the firing pin, substantially as described.
9. A firing pin lock, formed by cutting away one half of a cylindrical pin on
a plane passing through the axis thereof to allow of the free longitudinal movement
of the firing pin, and by cutting away the semi-cylindrical portion sufficiently to
form locking shoulders at the two ends of movement of the firing pin, substantially
as described.
10. The combination, with the firing pin, of a lock therefor adapted to oscillate
in bearings, and provided with a locking shoulder adapted to be moved by the

page_text: oscillation of the lock into engagement with the firing pin and to lock it in its
forward position against rearward movement, or with a similar shoulder for locking
the firing pin in its rearward position against forward movement, or with both the
aforesaid shoulders, substantially as described.
11. The locking shoulder having a bevelled face operative to retract the pin,
substantially as and for the purpose specified.
12. The combination with the firing pin, provided with a locking lug, of a lock,
journalled adjacent to and substantially parallel with the path of movement of
the locking lug, provided with locking shoulders adapted to be moved by the
oscillation of the lock into the path of movement of the locking lug, the locking
shoulders being so located. thereon with respect to the lug as to lock the firing pin
in its backward position against forward movement, or in its forward position
against backward movement, substantially as described.
13. The firing pin lock substantially as described with reference to the
accompanying drawings and for the purposes specified.
14. A bolt lock pivotally mounted upon the receiver, and provided with a
locking rib, the bolt being provided with a shoulder substantially concentric with
the axis of the lock, and adapted to be engaged by the rib of the lock as the latter
is turned upon its axis, whereby the bolt is held against transverse movement,
substantially as described.
15. The combination with the receiver of the combined spring-controlled bolt
stop and retaining device for the firing pin lock fitted upon the receiver and
adapted to be moved into and out of engagement with the bolt, and provided with
a recess adapted to engage with the firing pin lock and retain it against withdrawal,
substantially as described.
16. The combination with the receiver, the ejector, the bolt and a lock therefor,
of a combined bolt stop and lock retaining device mounted to slide upon the
receiver transversely to the direction of movement of the bolt, and provided with
an inclined portion adapted to engage with and operate the ejector, and to stop
the bolt, and further provided with an elongated recess adapted to engage with
and retain the lock against withdrawal, and a spring adapted to normally hold the
device to its bolt stopping position, substantially as described.
17. The combination with the receiver and the bolt, of a lock journalled in the
receiver, and a retaining piece therefor mounted on the receiver, and adapted to
engage with the lock and retain it against longitudinal movement with relation to
the receiver, the retaining piece being movable into and out of stopping relation
to the bolt, without releasing the lock, substantially as described.
18. The combination with the receiver and with the firing pin of a lock
journalled in the receiver and provided with a bearing that prevents end wise
movement of the lock, a retaining device mounted upon the receiver transversely
to the position of the lock, and provided with a recess adapted to engage with the
bearing of the lock, and a spring adapted to press the retaining device into frictional
contact therewith, so as to offer a suitable degree of frictional resistance to the
rotation of the lock, substantially as described.
19. A magazine fire arm having incorporated therein the various improvements
substantially as described with reference to the accompanying drawings.
Dated this Oth day of Man 1906
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.