Year: 1890

page_text: Fig. 6, a side elevation in a different position of the working parts.
Rapid rotary motion is imparted to the machine by a string passing over pulleys
which are fixed on the drill shafts. The said string passes likewise over a pulley b
connected with the endless screw c. The latter acts on a screw pinion mounted on
a shaft d which carries a disc or cam g provided with one or two teeth gl.
The
During the revolution of the shaft d, these teeth come in contact with a friction
rollerfheld by the angle lever h which has its fulcrum at h¹. By the pressure of the
cam g the horizontal arm of the lever his drawn downward, while the upright arm
is pressed against the drill shaft, so that the rail i fixed to the upper extremity of
the lever comes in contact with the drill shaft and pushes it slowly forward, in
order that the drills may meet the cartridge shell and operate upon the same.
shell to be drilled is laid upon a saddle n and pushed forward, so that the hook m
enters the igniting or priming chamber. The same motion of the lever h which acts
on the rail serves also to hold the cartridge shell. For this purpose the lever h has
a friction roller which presses on a lever k having its fulcrum at k¹, and provided
at the top with a fork k³, which receives the neck of the shell, as shown by Figs. 1
and 6. If now the horizontal arın of lever h descends, the forked extremity of the
lever advances against the shell, so as to come in contact with its shoulder and
press the shell against the hook m, after which the shell is held between the latter
and the fork .
The lever may, however, be made without a fork and press on the shell at the
front end. As soon as the tooth g¹ of the cam g is out of contact with the friction
rollerf, the drill bars are pressed back by the springs y and replace the lever h into
its original position, thereby allowing also the lever k to move back.
During this return motion of the lever h, its horizontal arm meets the ejector p
which is guided in the boss q and pressed downward by a spring s.
The up-motion of the ejector p produced by the lever throws the cartridge-shell
out of its saddle. The upper or contact face of the ejector is oblique, as seen in
Fig. 5, in order to throw the shell always to the same side.
The machine may be adapted to work by hand, by providing the shaft o with a
crank which serves to turn the same, and if the lever is not required to act automati-
cally, it is provided with one or more handles, either at the horizontal or at the vertical
arm, and the cam 9 is omitted.

page_text: The sleeves which hold and guide the drill bars are adapted to turn in axle
bearings u and supported at the back by a slotted guide plate (Figs. 1 and 2). The
bearings or collars which hold the rear part of the said sleeves are provided with
studs or bolts which pass through the curved slots of the plates v and are adjustable
therein, so that the drills may be placed at any desired angle to each other.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
1. In a machine for drilling cartridge-shells and analogous objects, a lever
adapted to produce the forward or feed motion of the drill bars and to fix the shell
in position, substantially as described and illustrated.
2. The combination of a lever h as specified, with an ejector p having a spring s
and adapted to throw off the cartridge during the return motion of the lever, sub-
stantially as described.
3. The combination of lever having a lateral arm i, with a cam g mounted on
a revolving shaft and adapted to operate on the lever h in the manner substantially
as described and for the purposes specified.
CARL RAUHE.
By Fairfax & Wetter,
433, Strand, London, Agents.