US1015391A

US1015391A - Target-practice apparatus.

Info

Publication number: US1015391A
Application number: US49838709A
Authority: US
Inventors: Frank Mitchell
Original assignee: ATLANTIC NAT BANK
Current assignee: ATLANTIC NATIONAL BANK; ATLANTIC NAT BANK
Priority date: 1909-05-26
Filing date: 1909-05-26
Publication date: 1912-01-23
Anticipated expiration: 1929-01-23

Description

F. MITCHELL. TARGET PRACTICE APPARATUS.

APPLICATION FILED mums, 1909.

Patentgd Jan.23, 1912.

fnventar:

FRANK ITCHELL, or HAMMERSMI TH, noivbon, NGLAND, AssIeNoa, 'BY MiasNE ASSIGNMENTS, T0 ATLANTIGNATIONAL BANK -OFPROVIDENOE, aarronn ISLAND,

A CORPORATION or errors ISLAND.

TARGET-PRACTICE APP RAT S.

p t e 9 Letters a en r Patented Jan. 23,1912.

Application filed May 26, 1909. Serial No. 498,387.

To all whom it may concern:

Be it known that I, FRANK llhrcHELL,

a subject of the King of Great Britain, residing at I-Iannnersmith, London, VV., England, have invented Improvements in Tar get-Practice Apparatus, of which the "following description, in connection with the accompanying drawings, 1s a spec fication,"

like letters on the drawings representing like parts. 1

This invention is for improvements in or relating to apparatus for rifle, gunnery and like practice and particularly relates to apparatus'of the kind set forth in the specification of Letters Patent of Great Britain No. 9977 of 1906 granted to Frank Mitchell,

forimprovements in and relating to appa-' ratus for rifle, gunnery, and like practice.

One object of the present invention is to combine with automatic recording-apparatus of a particular typeset forth in the specification of the aforesaid prior Letters Patent, 2'. c. what may for convenience be termed the axial type, a well known device for magnifying or multiplying the 'di'splacement of the needle or marker relatively to the actual angulardisplacement of the practically- Thi's angular displacement" in gun, the other parts remaining the same. the operat on of aiming is imparted to it 111 relation to the cord or other {connector stretched from the gun to some point in front of it. I According to this invention a cord (employed as before which lies normally in line with the bore of the rifle or other "firing piece and extends therefrom to a point in front of the rifle. This cord is interrupted by a device, for example a stirrup or yoke,

at a point near the rifle and a needle or other recording member is pivoted to a support carried by the rlfle and operatively engaged with the stirrup or other device.

I easily damaged in use. The Whole n1echa- Preferably a housing is provided for the stirrup or other device that interrupts the cord and such housing also supports the recording member and is shaped to constitute an endwise extension of the stock of the rifle. By. arranging the parts inthis manner the recording mechanism does not foul the line of sight, and does not'project laterally or vertically "from the-rifle in such a way as to distract the marksman or become rifle with mechanism is a perspective, Vice 7 The cross-section of nism is so arranged as to be readily detached from the rifle and that end.

of the, cord which enters the bore of the barrel may be connected to adummy cartridge.

In the accompanying drawings 1 igure 1- isa perspective view showing'part of'a constructed according tothis invention attached thereto; Fig 2 for use with rifles mechanism, and Fig." 3 is a diagrammatic View s owing the position'of the rifle on the tripod.

the drawings.

The housing or carriage A; is "shaped to end of'the barrel B of, the.

also extend. The housing slip over {the rifle and it may butt against or over the end of the stock B. when slidfon to the end of thejbarreland over or against the end of the stock may be held in place by friction or any suitable fastening may be is slotted as at A so as not to foul. any lateral projections y 7 that end of the housing which engages or butts against the stock Like letters indicate like parts throiighout such as the sight B of a tripod or stand provided with such.

provided if desired. It 1 is. madev of approximately the same area as I that of'the portion of the stock combined with "the barrel thereon andall the mechanism mounted in and upon the'housing is of an endwise extension upper portion of the housing is cut awayor reduced as at A and 'the lower portion incl'oses a stirrup" C having arms G and C that extend openings in the top of the, housing. f

conveniently made to lie within the. ,area

ofthese parts. Tl1e t forward end-of the through Fast on 'the upper face of the reduced portion of the housing is ,a rectangular frame D. \The ,frame is "dispo'sedtranS- versely to the barrel B and carries a fulcrum block D. Mounted on the block and free to pivot in all directions is a recording needle E, one end of which has connection with a lugC the stirrup; The needle I pivotal on the. arm C of is so mounted, in

the block D that it "cannot move'endwise 1.

although it is free to rock in the "block in any plan'e, but as these partsin themselves form .no part of the-:present inventionfa detailed description thereof isunnecessary The stirrup a cord F. F whereof it practically forms a oryokeC is held in place by bull of the same, as described in the earlier specification No. 9977/06 already referred to. The cord portion F also has a loop at one end which hitches over a claw C on the arm C of the stirrup C and the other end of this portion of cord is secured to a screw-threaded plug G which is entered in a dummy cartridge G whose interior is screw-threaded to receive the plug. The dummy cartridge is made externally of the same shape as the ordinary cartridge and consequently can be entered in the breech in the usual way. A portion however of the flange G is cut away as shown at G so that the extractor with which rifles are usually provided will not withdraw the dummy cartridge when the firing bolt is withdrawn.

Opposite the free end of the needle E a miniature target H is mounted. This is carried by a frame that extends vertically from a horizontal sliding piece H. This sliding piece is mounted in a groove H provided in the upper face of the housing A. The direction of the groove is parallel to the bore of the rifle and thus the target can be advanced toward or withdrawn from the needle without alteration of their relative positions in a lateral direction.

That end of the needle E which extends from the fulcrum block D on the side remote from the arm G of the stirrup is of greater length than the portion which extends from the fulcrum block to the arm C so that any movement of the stirrup is proportionally magnified by the needle as will be readily understood. The longer end of the needle carries a weight E that counterbalances the weight of the stirrup C.

The operation of this mechanism is as follows. The position of the needle E is controlled by the relative position of the cord F F and the barrel B and the parts are so alined that when the rifle is correctly aimed at the bull of the distant target, the cord lies centrally within the barrel and the needle E, is directly opposite the bull on the miniature target H as shown. With the parts so alined any aim that is not true will deflect the needle E through an angle that will be proportional to that made between the cord F F and the bore of the barrel, but the needle will be deflected through a greater angle owing to the magnifying movement obtained by pivoting it in the block D this magnifying movement, as is well known, permits a larger miniature target to be used with the apparatus than would otherwise be possible. The record is effected by the target being moved forward, say by the movement of the firing bolt at the moment of firing and such movement of the bolt may be imparted to the target by pneumatic or other means, for example, a Bowden wire, connecting the firing bolt with the sliding piece H The sliding piece carries a pin H to which the Bowden wire may be attached. By connecting the end of the portion F of the cord to the plug G and mounting this concentrically in the dummy cartridge G, adjustment of the cord may be effected by screwing the plug farther toward one end or other of the cartridge without deranging the alinement of the cord. The cord may be secured to the plug by passing it through a hole and knotting it on the farther side and if the hole is centrally situated no displacement of the cord laterally will take place when the plug is adjusted.

It will be seen that the whole of the miniature target apparatus is readily detachable. To remove the parts from the rifle it is only necessary to first unhitch the end of the cord portion F from the claw C of the stirrup C. The housing A with the indicator mechanism thereon can then be withdrawn bodily from the rifle and the cord portion F can be removed by withdrawing the dummy cartridge G. The cord portion F can be unhitched from the hook C on the arm C of the stirrup C to release the cord from the rest of the indicator mechanism. Before removing the housing A the connection between the sliding member H of the target H and the belt of the rifle must be detached.

To allow for windage the fulcrum block D is adjustably carried in the frame I). A spring D always tends to move the block to the top of the frame and the vertical position is adjusted by a set screw D against which the block bears. In opposite sides of the frame D and engaging the block D are other set screws D. These control the lateral position of the block and by screwing them in one direction or the other adjustment may be effected for the purpose of displacing the needle relatively to the target H when it is desired to allow for windage.

For teaching recruits a tripod such as shown in Fig. 2 is found useful with a rifle provided with indicating apparatus of the kind described. The tripod or stand coinprises a frame J having a table J On this table is a fixed block K that is recessed at K to receive the forward end of the stock of the rifle. The table carries a second block K that is recessed at K to receive the rear end of the stock or that portion of the same that lies just in front of the magazine.

' of the rifle owing to tus, the combination with by moving the block K The block K is adjustable laterally by of the screw L and forwardly or rearwardly by means of the screw correctly aimed; The recruit can then look along the sights and ascertain whetherhis method of sighting is correct. It will be seen that the forward. or rearward adjustment of the block K changes the elevation clined rear portion B of the stock:

At the side of the-stand a secondtable J is provided- This tablevis at a lower level than the table J and may be provided with blocks in the same manner, the height. being suitable for firing in a kneeling position While the height of the table J may be suit able for a standing position. Obviously the block K may also be made adjustable if desired and instead of employing the sloped for varying the of these blocks may v,

portion B of the rifle stock elevation of the aim, one have means for vertical Having thus described I claim is: g ,7 I

1. In a target practice apparatus, the combination with an aiming device of a flexible connector normally .in line with the bore adjustment: my lIlVe11t1011,Wll2tt thereof, a connection betweenthe connector and the aiming device,a pivotal support on the aiming device for the recording member and a rigid member interrupting the connector at a point near the aiming device.

2. In a miniature target an aiming device having a barrel, of a recording member,'a' pivotal support for said recording member, a flexible connector associated with said recording member in the same axial line withv the p vot thereof and passing lnto the barrel of the aiming device, and a connection between the connector and the aiming device.

3. In a miniature target practice appara tus, the combination with an aiming device having a barrel, of a dummy cartridge in the breech end thereof, a recordingmember, a pivotal support for the recording member,

a flexible connecting member associatedtherewith, said connector extending into the barrel of the aiming device, and a connection between said connector and said cartridge. i 4. In a target practice apparatus, the comthat can be adjusted in the longitudinal direction of the table J by a screw L In usethe tripod is alinedso that laterally by means L until the rifle is itsengaging the in-- practice apparaunector; v p

- 10. In a target practice apparatus, the i withthe aiming device,

ends to the flexible bination= with an aiming device having a cartridge and secured to said connector.

barrel, of recording apparatus, 'a flexible I, I connector associated withthe recording apparatus and extending into the barrelbt the aiming device, a dummycartridge, andaf A plug havingthreaded engagement withsaid 5. In a target practice apparatus, the com bination with an aiming jdevice havingi'a barrel, otrecording means, a flexible mer'nber 'associated therewith, and means within the barrel of the aiming device for adjustingthe attachment of theconnectorthereto;

, V 6. In a target practice apparatus, thecom- -b1nat1on wlth ana1m1ngdev1ce havlng a barrel, of a recording member, a flexible connector associated with the recording. memben a member constltutlng an endwlse extension otthe stock for the aimingdevice, sald member supporting therecordlng mem ber, and aninterrupting member interrupting the flexible connector and housed within the said endwise extension member;

"In a target practice apparatus, the com. bination with a gun having a barrel and a stock, er amember constituting an endwise extension of the stock andsecured thereto, and an aim recording apparatus supported upon said endwise extension. 7 p a 8. In a'tar'get practice apparatus, the com bination with. a gun having a barreland a stock," of a member constituting an endwise extension of the stock and having'a crosssection of: approximately the same area as I that of thefiring end of the stock, recording means supported on said endwise extension,

includinga target and a marker lying within the area of the said endwise extension, 0

anda flexibleconnector associated with the said recording mechanism and hav ngconnection with a point apart-from the grin,

9. In a target practice apparatus, the com.-

bination with an aiming device, of a marker, a min ature, target, a flexibleconnector leading from the aiming. device; to a point apart therefrom, having a combination with an aiming device, of a marker, aminiature target, aflexible con nector leading from the aiming device to a. and a rigid inter-' v a hooked connection v point apart therefrom, rupting member having at each end portion of the flexible connector and being also connected to the marker.

and a rigid interrupting'member L hooked attachment to the con-,'

. 11. Ina miniature target practice apparatus, the combination with an aiming device, of a flexible connector ax ally all nod therewlth," means connecting the connector the aiming device, a pivotal support for the marker and a stirrup connected at opposite connector and having also connectionwith the marker.

i a marker carried by i & 1,015,391

12.' In a target practice apparatus the cording member, said recording member combination With an aiming device having having a magnified movement over that of a barrel of a supporting member adapted to the connector.

be applied to the barrel of the aiming de- In testimony whereof, I have signed my 15 5 vioe, a miniature target carried by said name to this specification, in the presence of member, l2; pivoted recorder also carried by two subscribing Witnesses.

said mem er, a flexible connector having one T end connected to a point Within the barrel FRAB K MITCHELL of the aiming device and the other end to Witnesses: 10'an extraneous object, and a connection be- HARRY B. BRIDGE, Jr.,

tween said connector and said pivoted re- PERCY W. HIoGINsoN.

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