US3030722A

US3030722A - Receiver with lid covering the ejection slot

Info

Publication number: US3030722A
Application number: US807555A
Authority: US
Inventors: Jessie T Ivy
Original assignee: Individual
Current assignee: Individual
Priority date: 1959-04-20
Filing date: 1959-04-20
Publication date: 1962-04-24
Anticipated expiration: 1979-04-24

Description

J. T. IVY

April 24, 1962 RECEIVER WITH LID COVERING THE EJECTION SLOT 5 Sheets-Sheet l Filed April 2o, 1959 J. T. lVY

RECIVER WITH LTD COVERING THE EJECTION SLOT Filed April 20, 1959 5 Sheets-Sheet 2 INVENTOR. JESS/E 7'. /vy

IIL. l l I Il Y mllHulllllml J. T. lVY

April 24, 1962 RECEIVER WITH LID COVERING THE EJECTION SLOT Filed April 20, 1959 5 Sheets-Shet 3 ,4 /////W,/./ wd .1 1%..

s?? JgmfNTYEfs @f 25 KITTaRNE 0 du o J. T. IVY

April 24, 1962 RECEIVER WITH LID COVERING THE EJECTION SLOT Filed April 20, 1959 5 Sheets-Sheet 4 April 24, 1962 J. T. lVY

RECEIVER WITH LID COVERING THE EJECTION SLOT 5 Sheets-Sheet 5 Filed April 20, 1959 IILVIIIIIIIIIA L- mmm- 551K` INVENTOR.

HTTOB/VE YJ ,3,`ZZZ Patented Apr. 24, 1962 3,030,722 RECEIVER WITH Lm COVERING THE EIIECTIN SLG'I .Iessie T. Ivy, 523 Henderson St., Seattle, Wash. Filed Apr. 20, 1959, Ser. No. 807,555 1 Claim. (Cl. 42--16) This invention relates to rifles and it has reference more particularly to improvements in bolt action rifles.

This application is a continuation-impart of my c- Y pending application led on November 15, 1957, under Serial No. 696,738, now Patent No. 2,967,367.

It is the principal object of this invention to provide certain improvements in the receiver, the bolt and various parts that -are more or less directly associated therewith, that results in a more satisfactory bolt action in its extraction of shells from and the loading of cartridges into the barrel; that provides yfor a more secure and more substantial locking of the bolt when in closed position; which provides an extractor means on lthe bolt of novel form and novel `mode of operation and wherein novel means is provided for the automatic opening and closing of a cover plate for the shell ejection opening in the receiver. It is a further object of the present invention to provide novel shell ejecting means operable incident to and by the bolt action. y

Further objects and advantages of the invention reside in the Idetails of construction and combination `of the various parts embodied by the invention and in their mode of operation as will hereinafter be described.

In accomplishing the above mentioned and other objects of the invention, I have provided the improved details of construction, the preferred forms of which are illustrated in the accompanying drawings, wherein:

FIG. 1 is a section taken Ithrough the receiver portion of a rie substantially in the vertical axial plane of the barrel, and showing some of the contained par-ts in side elevation.

FIG. 2 is a sectional detail, in a horizontal plane, of a portion of the receiver and bolt, and illustrating a functioning operation of the shell ejector mechanism.

FIG. 3 is a sectional detail showing the forward end portion of the bolt as locked in its forward or closed position.

FIG. 4 is a side view of the forward end portion of the bolt showing the shell extracting latch.

FIG. 5 is a side view of the receiver, shown apart from the rifle stock.

FIG. 6 is a horizontal section of the receiver, taken on the lne `6 6 in FIG. 5, showing some of the bolt locking ribs therein.

FIGS. 7, 8 and 9 are cross-sectional views of the receiver taken, respectively, on lines 7-7, 8 8, and 9 9 in FIG. 5.

FIG. 10 is a perspective view of the receiver and parts that are normally contained therein, but shown in a separated or disconnected relationship for explanatory purposes.

FIG. 11 is a section taken in a horizontal plane through a part of the receiver, and a part of the bolt in locked position. t

FIG. 12 is a side view of the bolt, hammer and trigger mechanism; the bolt having parts broken away for explanatory purposes.

FIG. 13 is a vertical cross-section taken on line 13-13 in FIG. 12.

FIG. 14 is a section taken on the horizontal plane of line 14-14 in FIG. 12, to show the underside of the bolt.

FIG. 15 is a cross-sectional detail taken in a vertical plane to show the relationship of the cartridge holding clip and bolt as contained in the receiver.

FIG. 16 is a forward end view of the bolt.

FIG. 17 is a sectional detail of a part of a rifle bolt as equipped with a firing pin of an alternative form of construction.

FIG. 18 is a similar view, showing the firing pin as latched in cocked position.

FIG. 19 is a cross-section taken on line 19-19 in FIG. 17.

FIG. 20 is a sectional -detail showing yet another for of tiring pin arrangement.

FIG. 21 is a vhorizontal section taken on line 21-21 in FIG. 20.

Referring more in detail to the drawings:

In FIG. 1, I have shown only those parts of a rie that are required to illustrate the present improvements. In this view, the receiver is designated in its entirety, by numeral 10, and it is shown to be fixed to the stock 11 at forward and rearward ends by

bolts

12 and 13, applied upwardly through the stock Iand threaded into the bottom of the receiver body. The receiver, shown more in detail in FIGS. 5 through 9, is formed with an axial bore 14 in which the rille bolt, designated in its entirety in FIGS. 1 and 10 by numeral 15, is reciprocally contained. The riiie barrel 16, shown only in part in FIGS. 1, 3 and 11, has its rear end portion 16x threaded into a counter bore in the forward end of the receiver, in coaxial alignment with the bore 14. 'Dhe breech end of the rifle b-ore is formed with a chamber to receive a cartridge c for tiring as has been illustrated in FIG. 11.

Fitted within an opening 17 for-med in the stock 11, below the rearward portion of receiver 10, is a housing 18 which forms an enclosure and provides the mounting means lfor the hammer and trigger mechanism shown in FIGS. 1 and 12 and later described. Forwardly of the housing y1% the stock is recessed, as at 19, for reception, in the usual manner, of a cartridge holding clip 20.

It is shown in FIG. 1 that the housing 18 carries with it the usual trigger guard 21 and, in this instance, it also carries a pistol grip member 22.

It is to be noted by reference to FIGS. 1, 2 and 6, that the receiver 10 is formed in its underside and forward end portion, with a longitudinal opening 23 designed to receive the upper portion of the cartridge holding clip 20 for delivery of cartridges to the receiver chamber 24. Also, i-t contain-s a slot 25 in its underside, extending along and opening to the rear end thereof, as seen best in FIG. 6 to accommodate the hammer action, as will presently be explained. This slot terminates at its forward end in a cross-bar 25x formed in the receiver, as seen in FIG. 6, that separates the opening 23 from the slot.

The bolt 15 is contained, as seen in FIG. 1, in the bore 14 of the receiver for reciprocal movement between the forward, breech closing position, in which it has been shown in FIGS. 3 and 1l, and the retracted, open position, in which it is shown in FIGS. 1 and 2. The bolt also is axially rotatable in opposite directions to a limited extent when in its forward position for locking and unlocking it. While moving lengthwise of the bore to and from-closed position, the bolt is held against rotation by means thereon, coacting with means in the bore 14, as presently described.

Rotation of the bolt 1'5 for locking and unlocking it, also its movement between open and closed positions, is herein indicated as being manually performed. However, these movements might also be performed by various means which are disclosed in the above mentioned prior application out of which the present application was divided. It is herein shown that the bolt 15 terminates at its rear end in a coaxial cylindrical part 15x of reduced diameter, ya-bout which one end of a sleeve 27 is applied and fixed so that the sleeve serves as a bolt extension. Fixed on the rear end of this sleeve and extending radially therefrom is a knob 30 which may be grasped as a handle member in manually eiecting the necessary reciprocal movements of the bolt for reloading and also its rotary movement in opposite directions for locking and unlocking it.

It isl necessary that the bolt be held against any ro\ tative movement while being shifted endwise, also that it be securely locked when closed. To accomplish these requirements the bore 14 is formed interiorly thereof and in different locations therealong with longitudinal ribs arranged in arcuate spacing thereabout, as has been shown in FIGS. 6 and 10 and with which lugs provided on the bolt 15 coact. These lugs are guided between the ribs when the bolt is moved endwise and are moved into end -to end abutment therewith for the locking of the bolt in its breech closing position.

Referring more particularly to FIGS. 6 and l0, it will be observed that a plurality of ribs 31 are formed in the forward end portion of the receiver bore 14 and a similar group of ribs 31 are formed in the rearward end portion; being located forwardly and rearwardly of the clip receiving opening 23. The ribs of each group are aligned with those of the other. It is desirable that the ribs 31 that are formed in the forward end of the receiver bore had their forward end portions transversely channeled as at 33 in FIG. 6, for a purpose presently explained. However, this is optional. The arcuately spaced relationship of the longitudinal ribs, circumferentially of the bore is shown in FIGS. 8 and 9.

It is shown in FIGS. 16 and 10 that the bolt 15 is circular in cross-section. It is of such diameter that it is contained without looseness, for easy reciprocation, in the bore 14. It is formed about its forward end portion with longitudinally extending lugs 32. When the ribs 31 of the receiver are transversely channeled as at 33, then these lugs 32 would be channeled accordingly, in such manner, that each provides a succession of teeth 34 designed to be received within the transverse grooves 33 of the ribs 31. If the ribs 31 are not channeled as in FIG. 6, then the lugs 32 could be plain, as in FIG. 4. Likewise, the bolt is provided near its rear end with lugs 32 adapted to coact lwith the ribs 31 in the rear end portion of the receiver in the bolt locking operation, as presently explained.

The transverse channels 33 as formed in the ribs at the forward end of the receiver bore are very slightly spirally directed and engaging surface of the teeth are similarly shaped so that in the rotative movement of the bolt in locking it, the teeth 34 will draw the bolt tightly to its closed position against the cartridge as shown in FIG. 3.

All lugs 32 and 32 as formed on the bolt engage firmly against the forward ends of the

ribs

31 and 31 as formed in the receiver bore to sustain the force of fired cartridges. On turning the bolt from locked position for unlocking it, its lugs move out of alignment with the ribs and can then move freely in guiding them.

In the present instance, the lugs 32 and 32' as formed on the forward and rearward end of the bolt, are supplemented by a pair of lugs 32a-32a that are located somewhat rearward of the lugs 32, as has been shown in FIG. 10. These lugs are adapted, when the bolt is rotated to locked position, to be aligned with and engage the forward ends of ribs 31a formed in the receiver bore; these ribs being shown also in FIG. 10.

Formed in the bolt 15, to the full length and coaxially thereof, is a bore 40 in which Ka tiring pin 41 of stepped diameters -is contained. The pin has a short forward end portion 41f of the greatest reduction in diameter that is adapted -to strike the primer of a cartridge when lthe latter is properly loaded by the bolt in the barrel for firing. The rear end portion of the firing pin extends into the sleeve 27 where it terminates in an enlarged head i 42. A coiled spring 44, contained under compression in the sleeve and bearing against the head 42 normally retains the tiring pin in a retracted position.

Fitted and secured to the rear end portion of the firing pin 41, as best shown in FIG. l0, is an anvil block 49 against which the hammer is caused to strike to fire a cartridge, as will presently be explained. This anvil extends downwardly from the pin and through a longitudinal opening 50 formed in the underside of the bolt. This slot has sutiicient length to permit the required endwise movement of the pin for tiring and also it has a width somewhat greater than the block to permit that axial rotation ofthe bolt required for locking and unlocking it. It is to be understood also that the block 49 extends downwardly through and for guided reciprocal movement in the longitudinal slot 25 formed in the underside of the receiver, to the extent necessary for its cooking the ham-` mer when the bolt is retracted as presently explained.

The trigger and hammer mechanism as shown in FIGS. 1 and 12, is contained in the housing 18. Mounted in a sidewall of this housing as in FIG. 13, is a stud 58 on which a hammer 59 is rotatably mounted; the hammer being in the form of a iiat plate which is disposed below and in the vertical plane of the tiring pin. As shown here, the hammer forming plate comprises a, substantially semi-circular body portion that is mounted at the center of curvature of its periphery on the stud 58, and from which body portion an arm 6i? extends radially in an upward direction. The arm 60 is of such length that it can be caused to strike the tiring pin anvil incident to a certain rotative action of the plate that takes place when it is released from a cocked setting.

To power the hammer for a cartridge firing operation, I provide a coil spring 62 that is attached at its opposite ends, under tension, to the front Wall 18x of the housing 13 and to the hammer plate at a point substantially above the pivot stud 53.

Rearward action of the bolt, as for re-loading, whether effected manually by pulling rearward on knob 30 or otherwise, causes the hammer plate S9, by reason of the engagement of a part of the anvil block 49 with the hammer arm 66, to be rotated counter clockwise, in reference to its showing in FIG. 1, thus to move it from its dotted line showing to its full line cocked position.

When the hammer is so actuated, it is automatically latched in its cocked position by a sear 64 pivoted on a sidewall of the housing 18 by a stud 65. Fixed to the upper end of the sear is a short rearwardly directed lever arm 66 to one end of which a coil spring 67, under tension, is attached. The other end of the spring is fixed to a stud 68 mounted in the housing 18 below the arm 66. This spring operates to yieldingly urge the lower end portion 64 of the `Sear 64 against the periphery of the hammer plate 59. The hammer body has a shoulder 69 projecting therefrom toward the Sear and when the hammer plate is rotated, by bolt action, to cocked position, the toe of the sear drops over the shoulder 69 and the hammer is thereby locked in cocked position.

The release of the hammer for firing the loaded riile is effected by actuation of the trigger mechanism. This comprises a trigger lever 7i) that is pivoted at its upper end on the stud 58. At its lower end the trigger lever is formed with a iinger hold 70 which is protected by the trigger guard. Immediately below and in the plane of the hammer plate 59 is a horizontal, slidably supported latch bar 72 with a pin and slot mounting 73 at its forward end and a coil spring support 74 at its rearward end; this spring being attached, under tension, at one end to stud 68 and at its other end to an upward extension 72' of the bar. Between its ends, the bar 72 has a pin and vertical slot connection 76 with the trigger lever which provides for the longitudinal actuation of the bar by a rearward pull on the finger hold 70'.

The sear 64 is `formed at its lower end with a downwardly projecting lug or shoulder 78. When the harnmer is cocked and held by sear 64 ready for ring by trigger release, as shown in FIG. 1, the lugr or shoulder 78 is engaged at its forward side by an opposedly related shoulder 79 formed on the top edge of the bar 72. VPull on the trigger 70 as for tiring, shifts bar 72 rearwardly, causing its shoulder 79` as engaged with lug 7S to swing the sear to the left and clear its toe portion 64' from the shoulder 69 on the hammer plate. The coil spring 62 then forcibly acts on and rotates the hammer plate to cause its arm `60 to strike the anvil 49 of the ring pin 41 and thus cause the forward end of the firing pin 41 to strike the firing cap of the-cartridge. As the hammer rotates, for firing, a shoulder 59s on its lower edge is caused to engage a shoulder 72s on the bar 72 thus to actuate the bar downwardly and release the shoulder 79 from the latch arm y64, thus to free the latter for subsequent latchng.

It is also provided that if the trigger is squeezed tothe limit, a projecting shoulder 70s formed thereon, as shown in FIG. l will engage lever 72 to hold it depressed and freeing the sear 64 as for semi-automatic tiring. When the trigger pull is released, the coil spring 74 restores the slide bar 72 and the trigger to their normal positions. A pin 80, applied to plate 57 below the rear end of the slide 72, limits the downward movement of the slide.

As a detail of construction of anvil 49, it will be observed more particularly by reference to FIG. l2, that a block 81 is pivoted at its right hand end as at S2, on an extended portion 49 of the lower end of the anvil 49. This block S1 is yieldingly held in a slightly downwardly inclined position by a small coiled spring 83 disposed between the lower end of the anvil and top of the pivoted block. The block 81 is adapted to eng-age the end of the hammer arm 60 during the hammer cocking operation as effected by the rearward action of the bolt, to rotate the hammer plate 59 slightly more lthan `is required for moving the shoulder 69 past the toe 64 of the sear 64. This block `81 ultimately slips olf the arm 60 and moves substantially beyond it, thus allowing the hammer latching operation as in FIG. l. Then, with the return of the bolt to its forward position, the block 81 yields upwardly and rides over the end of the hammer arm. The over travel of the hammer plate in the cocking operation causes the shoulder 69 thereon to pass beyond the latching toe of the sear 64 sufficiently so that there will be no possibility of the sear failing to latch.

Cartridges as automatically advanced from the shell clip 20 into the receiver chamber are pushed into the breech end of the barrel by the bolt '15 as it is moved from retracted to forward or locked position. Cartridges are arranged in the clip in thev staggered relationship shown in FIG. 15, and are urged upwardly by spring pressure. The uppermost cartridge lies against the underside of the bolt until it is fully retracted. Then, the extracting rim at the base of the cartridge is Vfree to slip up against a stop in the receiver into the path of the bolt. Then when the bolt is actuated forwardly, it pushes this cartridge from beneath the cartridge stop 20x freeing it to move upwardly directly in front of the bolt, land properly positioned for loading into the barrel by the forward action and locking of the bolt. As the cartridge starts forwardly, the rounded end of the bullet engages the rounded and upwardly sloping surface shown at 14x in FIGS. 1 and 5. As it rides up this surface it is sprung free of the holding llange 20x of the clip. After firing the cartridge, the empty shell is extracted and ejected by the rearward action or retraction of the bolt, and as the bolt is retracted, two lugs that are formed on the underside of the forward end portion of the bolt, and which are those designated at 32x in FIGS. 15 and 16, restrain the cartridges remaining in the clip. These two lugs are slightly rounded at their rear ends to insure their easy passage over the cartridges. As the bolt nears the end of its retracting movement, the lugs 32x move rearwardly of the cartridges in the clip, and the uppermost cartridge then springs into the path of the bolt as in FIG. 15. As the cartridge moves up, its base end flange engages a stop in the receiver; its middle portion bears against the clip retaining flange 20x.

The receiver 10 is formed at one side, as will be best understood by reference to FIGS. 2 and 8, with a longitudinally extending shell discharge opening 35. Normally this opening is covered by a door or lid 86 hingedly mounted at its top edge, on the receiver to swing upwardly and outwardly, as indicated. This lid is normally urged to the closed position in which it is shown in FIG. 8, by spring means 87 associated with its hinge mountings, and it is caused to be opened automatically with the retraction of the bolt and the extraction of a Iired cartridge by means which will now be described.

FIG. l shows the lid or cover 86 in its open position, and the bolt retracted. It is also shown in that view that a pair of rocker levers, 90 and 91, extend-along the flat, vertical top edge surface of the receiver shell discharge opening 85; each lever being pivoted on this flat surface intermediate its ends, by a stud 92. The inner ends of these levers have an interfitted, sliding joint connection as at 93, whereby the levers are caused to rock in unison. When the lid 86 is moved by spring action from the open position of FIG. l, to ,its closed position incident to the initial closing movement of the bolt, it engages against the outer ends of the levers and rocks them downwardly and in doing this, causes a downwardly directed outer end lug x, of lever 9%) to be depressed into a longitudinal channel that is formed in the bolt, as seen in FIGS. 10 and 12. At its rear end this channel has a widened portion 95x designed to receive lug 90x to permit that slight rotative movement of the bolt for locking it in closed position. With the full retraction of the bolt for the extraction of a fired cartridge, the lug 90x rides out of the forward end of the channel to the top surface of the bolt onto the locking lug 32 aligned with the channel and in doing this rocks the lever 9i) upwardly. This causes the outer end portions of both levers 90 and 9E. to swing upwardly against the lid, thereby actuating it to the open position shown in FIG. 1. A shell extracted from the barrel by this retraction of the bolt -15 may then be ejected through the receiver opening `85. With the closing or forward movement of the bolt, the lug 90x rides off the lug and is urged into the bolt channel 95 and the spring hinge mounting of the lid S6 actuates the lid to its closed position, where it remains while the gun is not being operated, thus keeping out dust, dirt or moisture.

To effect the extraction o-f a fired cartridge from. the barrel into the receiver chamber and its subsequent forcible ejection by the bolt action, I provide that extraction means shown particularly in FIG. 2. Itis shown in this View that a cartridge shell extracting latch 96 is contained iu a longitudinal channel 97 formed in the forward end portion of the bolt. This latch is pivotally mounted intermediate its ends by a pivot pin 98, and a coil spring 99 is disposed under compression between the rearward end of the latch to yieldingly urge its forward end portion inwardly.

In FIGS. 2 and 10 the latch lever 96 is` shown to be transversely channeled to provide it with locking teeth 34 that are registered with those of the lugs 32-32 between which it is pivoted. However, if the receiver ribs are not channeled, then this latch would appear as shown in FIGS. 4 and 14.

At its forward end, the bolt 15 is yforrned coaxially thereof, with an extending annular ilange 100 within which the flanged base end of a cartridge will be seated, as in FIG. 3, as the bolt moves forwardly in a loading operation. Also, the latch lever 96 is :formed at its forward end with an inturned and arcuately extending hook 102 that projects inwardly through a recessed position of this flange 166. This hook has its forward surface inwardly beveled in such manner as to cause it, upon engaging the rim ange of the cartridge, with the closing travel of the bolt, to slide thereover. Tnen when the bolt is subsequently retracted, this hook retains its hold on the cartridge ilange and the cartridge will be pulled from the barrel into the unloading chamber of the receiver as indicated by its dotted line showing in FIG. 2.

As the bolt 15 moves to its full open position, the lid 6 is actuated thereby to its open positionand the extracted shell or casing is ejected from the receiver chamber through opening' 35 by means shown best in FIGS. 2 and l0. This comprises a stop latch 165 disposed in a slot 166 formed in `a sidewall of the receiver. This latch bar has an offset rear end portion that is pivoted in the slot. The forward end portion of the latch bar is adapted to swing inwardly or outwardly. A small coil spring 1% bears against the rear end portion of this latch to urge its forward end inwardly. Normally this end is contained in a channel 1"99 that is formed in the bolt lengthwise thereof and extends from its forward ends of lugs 32 to just `short of the lugs 32 at the forward end of the bolt; where it opens into a somewhat enlarged pocket 111i. The channel Ml? is shown in FIG. 14 as being formed in the underside of the bolt, substantially diametrically opposite the position of the longitudinal channel -as seen in FIGS. 10 and 12. Contained in the pocket 11i@ as observed in liGS. 2 and 14, is the head portion 112 of a push pin 113. This pin extends through a bore 113x to the forward end surface of the bolt and engages against the base of the shell casing as held for extraction.

When the bolt is retracted as for shell extraction, the forward end of the pivoted stop bar 105 as contained in bolt channel 1419, ultimately strikes the head 112 of the pin 113 and the pin is driven forwardly. The receiver cover 8o has, at this time, been opened. Therefore, in view of the fact that the extracting latch 96 still retains its hold on the base rim of the extracted shell at one side, the forward drive of the pin 113 against the base end of the shell at the other side causes the shell to be flipped from the receiver chamber through the opening 85. Then, with the forward movement of the bolt as in reloading, the forward end of latch 105 follows in the bolt channel 1.@9 and the cartridge then being loaded, pushes the pin 113 back to clear its head from 'the forward end surface of the pocket 116i.

In View of the fact that the bolt, upon reaching its forward position, must be rotated `for locking, the stop bar 105 is so located that when the bolt is moved to its nal closing position, a lug 32 of the bolt rides onto the voffset rear end portion of lever 165 and depresses it, thus to swing the forward end portion of this stop clear of the channel 169. v

FIGS. 17, 18 and 19 illustrate an alternative trigger and firing pin mechanism wherein the tiring pin 41x extends beyond the rear end of the bolt and has a collar 12) fixed to it. A coiled spring 121 is confined under compression between the rear end of the collar and the closed rear end of a sleeve 122 that is fixed `to the bolt as an extension thereof. The collar 12'@ is equipped with a downwardly directed lug 12S that projects downwardly through a slot 126 formed lengthwise of the sleeve and the slot of the receiver as a means for holding it against turning. Slot 126 is Wide enough to permit that slight rotation of the bolt necessary for locking and unlocking it. Rotatably mounted on the tiring pin 41x between the collar 120 and end of the bolt, is a cam collar 128 formed in its rearward edge with a V-shaped notch 129 in which a similarly shaped lug 13d, projecting forwardly from the collar 12d is normally seated. The cam collar 12S has a lever member 128x fixed thereto, as shown in FIG. 19 by a stud IZSZ for its rotative adjustment. The rotative adjustment of the cam collar, by an upward swinging movement of lever 123x as indicated in FIG. 19, causes the lug 130 `to ride out of the notch 129 as shown in FIG. 18 and thus shift the collar 120 and tiring pin 41x rearwardly and place the spring 121 under a required tiring compression. rlhe tiring pin is held in this cocked position by a sear 132 which extends horizontally `and below the rear end portion of the bolt and is pivoted between its ends, as at 133, and is acted on by a spring 134 to urge its rear end to locking position as seen in FiG. 18. Locking takes place with the rearward adjustment of the collar as effected by the rotation of cam collar 123. When the rear end of the sear moves into holding7 engagement with a beveled surface x of the lug 125 a shoulder 132x at its forward end becomes latched beneath a hook 13S at the upper end of a spring pressed trigger lever 126. To re the rifle, the trigger lever 136 is pulled. This releases its upper end hook from the sear and the latter pivots and its rear end slides off the lug 12e'. The collar 12d and tiring pin are then driven forwardly by spring 121 to fire the cartridge. This can take place only after the collar 12S has been rotated back to locked position. A rotatable safety lock 138 is associated with the sear as shown.

The second `alternative mechanism, shown in FIGS. 20 and 2l, is designed for use with a hammer mechanism similar to or like that of FIG. 1. In this showing, the hammer would be so located that its striker arm @il will swing through a slot 1355 in the sleeve 122- and strike against a head 14@ formed on the rear end of the tiring pin 41h. The pin is urged rearwardly by a light coiled spring 141 located between the hammer head and rear end of the bolt 15. Cooking the hammer is elected by the retracting of the bolt in a manner similar to that disclosed in FIG. 1. In the present instance, when the bol-t is retracted for reloading the head 146 on the pin 41]; rotates the hammer counter clockwise to its latched position. Firing is not possible unless the bolthas been locked. Otherwise the arm 60 of thefh'ammer will not enter the sleeve slot 139.

lt has been shown in FIG. 1 that the rear end portion of the receiver 10 is covered by a hinged lid 150 which protectively overlies the bolt as retracted. When the lid is in open position, easy access may be had to the knob 3@ for actuation of the bolt. When closed, it is a protection against dust and moisture.

It is seen in several of the views that the bolt is equipped at its rear end, opposite the knob 30 with paired ears 1151-151. These are provided for attachment of automatic means for reloading, not shown or described in the present application.

What I claim as new is:

A rifle of the character described comprising a receiverl yformed with a bore having a shell ejection slot opening therefrom to one side of the receiver, a bolt reciprocally operable in the receiver bore between breech closing and opening positions, a lug on said bolt, a lid hingedly attached to said receiver to normally cover the ejection slot, spring means to urge said lid to closed position over said ejection slot, a lever mechanism mounted in said ejection slot, said lever mechanism including interconnected first and second levers, each lever being pivoted between its ends to a wall surface of the ejection slot, said levers being in engagement in end to end relationship, one lever having a head portion positioned tobe engaged by said lug for lid opening actuation of the levers with the opening of the bolt and a lid actuating head on at least one of said levers for engaging and opening the lid and against which the lid acts to swing the joined levers to normal position with the closing of the bolt and lid.

References Cited in the file ofv this patent UNITED STATES PATENTS (thcr references on following page) UNITED STATES PATENTS Browning Aug. 14, 1923 Dicke Mar. 31, 1936 Gans Feb. 15, 1944 Johnson Oct. 15, 1946 Sampson et al. Oct. 7, 1947 Jensen Aug. 12, 1952 Harvey June 21, 1955 10 Roper et al. Oct. 9, 1956 Perry et al. Jan. 1, 1957 Kimball Jan. 27, 1959 Reed June 14, 1960 FOREIGN PATENTS Germany 1892 France Mar. 24, 1954