US1547506A - Ammunition hoist - Google Patents

Description

July 28, 1925.

H. w. LEE ET AL.

AMMUNITION HoIsT rileiyeb. 16, 1925 Inventors nucn WAR EN LEE,

'EERBERT MOLE RHYS TREVOR JENKINS,

By the ir Attornew to turn and the link connecting the second Patented ,luly 19 25.

"' j fcoMrnNY, LIMI' ED; V or? NEwoAsTnE-nron-irYNn, NGL D,

:Be it known that we, H nwmm ,of: which the following isaspecification.

7 This invention relates" to 'ammunition hoists in whichtheiprojectile' is cause"dtoascend or descend a trunk by means of lifting arms pivoted to sliders reclprocatlng in the trunk such-asare described in specic fications Nos; 1 ,866,394 and-1,392,583, and p '4 [15, the object of the present invention is to "provide means for deliveringthe projectile if orother body from the. lifting arms to the delivery tray and also improved means for operating the tray. I

' According to this invention a slider, when in the position with the lifting arm raised so that the projectile rests upon a delivery tray, engages with a roller on the end of an arm fixed to a shaft to which is fixed ,2? another arm connected by a link to a prot j ection upon a stop or hook which is pivoted f to the underside of the delivery tray; To

the second ofthe arms on-the shaft is attached a spring. As the slider passes the roller the shaft carrying the arms is caused arm to the projection on the .hook is moved,

it causing itspivot on the projection to co ,eincide with the axis upon which the delivery v tray turns and causes the hook to engage with the underside of the projectile; v On the slider isa cam groove in which runs a roller at one end of a lever whose other end is connected b means of a link to the underside ofthe elivery tray, the cam groove being such that as the'slider moves upwards the delivery tray is turned upon its'axis into a horizontal position, and as the hook is also pivoted to the underside of the tray I 46 it turns with it and remains in position engaging the projectile. Y

en lowering ammunition the reverse action-takes place, the projectile being placed .on the tray when in a horizontal position, 1 and as the slider moves downwards the tray is tilted upwards into the trunk and the end of the slider ceasing to engage the roller on 1 the first mentioned arm, the second arm is caused? to resume its original position :owlng l i r to the actionof'its' spring; and the hookiisi: withdrawn from'engagement withzthe proi I j ectile, which is then retained by the {liftingarm on the slider andis ready tobelo wered; 1 The accompanying 'drawingswillustratef mechanism made 1n accordance w it'h{%=thisrB0 I invention. =Figures 1 and Q"'areIeIevationsF partly inisect-ion of a delivery tray at the; top of -a hoist; Figure .1 :shows a projectile delivered to :the tray by oneJof-the :lifting 'xr arms: and Figure 2 shows-the tray after" it; 65 A has been tilted; 7. 3 i oisaislider'havling a lifting arm bg an'd-lc isi a tray pivoted at (Z and in the position shown in Figurel a body e has just been delivered by the'arm b tothe tray; At the same time the upper end of the slider w engages with a roller f on an arm 9 fi xedto a shaft h to. V

which is fixed another arm 7' connected by a link 70 to a projection Z on a hook mpivot ed at n to the underside ofthe tray 0. The

arm j is attached to a spring 0 which tends to keep the roller fin contact with the slider a. 4 t V 1 As the-slider a passes the roller 7 the shaft k is caused to turn and the link is is moved causing its pivot on the projection l to coincide with the pivot 05 of the tray 0', and the hook at is caused to turn and enga'gewith the body 6 as shown'in Figure 2. The tray 0 is then turned upon its pivot d by means'of- B5 7 i a cam groove p in which runs a roller on .one end of a lever g whose other end is connected by a link r tothe underside of.

the tray 0. As the hook m is pivoted tothe i I underside of the tray 0' it turns with itand 90.

remainsin position engaging the bodye;

-When lowering ammunition the reverse takes place, the body e being placed on the tray 0 when in ahorizontal position and as Y i the slideroc moves downwards the tray, a is tilte'd upwards and the end of the slider a ceasing to engage the roller ion the arm 9, the arm j is caused to resume its original f position by the action of thespring 0', and

the hook m is withdrawn from engagement j with the projectile which. is then' retained. by the lifting arm I) and is ready to be lowered. '1

What we claim is j I 1; In an ammunition hoist, a slider, an arm on the slider, a pivoted tray, a stop on,

the tray, means for turning the tray and means for moving the stop into engagement with a body on the tray both actuated by the slider.

2. In an ammunition hoist, a slider, an

arm on the slider, a'pivoted tray, a stop pivoted to the tray, a projection on 'the stop, a link pivoted to the projection, means for armonthe slider, a pivoted tray, a stop pivoted to the tray, a projection on the stop, ali'nk pivoted to the projection, means actuated by the slider causing the pivot of the link to coincide with the axis, of the tray, means for turning :the tray and means ac-. tuated by the slider for moving the stop into engagement with a body on the tray.,

4. In an ammunition hoist, a slider, an arm on the slider, a pivoted tray, a stop pivoted to the tray, a projection on the stop, a shaft, two arms fixed to the shaft, one actuated by the slider, a link connecting the other to the projection and means for turning the tray.

5. In an, ammunition hoist, a slider, an arm on the slider, a pivoted tray, a stop pivoted to the tray, means for moving the stop into engagement with a body on the tray, a cam groove in the slider, a pivoted lever, one end actuated by the cam groove, and a link connecting the other end to the tray.

6 In an ammunition hoist, a slider, an arm on the slider, a pivoted tray, a stop pivoted to the tray, a projection on the stop, a shaft, two arms fixed to the shaft, one actuated by the slider, a link connecting the other to the projection, a cam groove in the slider, a pivoted lever, one end actuated by the cam groove, and a link connecting the other end to the tray. 7

In testimony that we claim the foregoing as our invention we have signed our names this 27th day of January 1925.

HUGH WARREN LEE. HERBERT MOLE. RHYS TREVOR JENKINS.

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