Improvements in and connected with Tools and Tool Holders.
Year: 1890

page_text: Date of Application, 2nd Sept., 1890-Accepted, 11th Oct., 1890
COMPLETE SPECIFICATION.
Improvements in and connected with Tools and Tool Holders.
A communication from abroad by JOHN S. BIROH & Co., of 73, Washington Street,
Brooklyn, in the State of New York, United States of America.
1, PHILIP MIDDLETON JUSTICE of 55 and 56 Chancery Lane in the County of
Middlesex, Fellow of the Institute of Patent Agents, 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 more particularly to screw drivers for watch makers, jewellers,
and other such light work, but is applicable to other tools such as brad awls and the
like, and it consists of a contrivance of several of such tools of different sizes in a hollow
handle so that any one may be readily pushed out at one end and secured in the
position for use by a chuck, whilst the rest are confined within the handle, all as herein-
after fully described, reference being made to the accompanying drawings in which :-
Fig. 1 is a side elevation of the improved tool.
Fig. 2 is a longitudinal section of the same with some parts of the case in side view.
Figs. 3 and 4 are transverse sections on line x, and y y, respectively of Figs. 1
and 2 on an enlarged scale.
Fig. 5 is an end view without the chuck nut also enlarged.
Fig. 6 shows the shape of the slot in the casing and
Fig. 7 the position of the head when the tools are in their retired and locked
position.
The hollow metal case or stock a is provided with a taper split and screw threaded
lower end 6 forming jaws of a chuck upon which fits a taper threaded nut c to contract
the jaws on the tool d to be used. The case a has two or more longitudinal slits e in
said case at uniform distances apart circumferentially, and extending nearly the whole
length but terminating a little short of each end, there being one slit for each tool.
The said tools are provided with a lateral spur or projecting arm fat the upper end to
extend through the slits of the case so that the tool may be shoved out when required
for use, and back when not required. The spurs should of course be of such a length
as will allow the tools to come to the centre of the tube when shoved out for use and
they may be provided with a head g at the outer end wider than the slit to prevent
the tool to which it belongs from dropping farther into the tube and wedging in
between the other tools, some of which being smaller than the others in part of their
length leave considerable space in the case especially below the upper portions of the
tools which are all of the same size and are preferably corrugated or grooved as at k
so that they may be securely held when in the chuck.
The upper portions are all of maximum size for such length as is gripped by the
chuck, in order that the chuck may have uniform range of opening and closing for all.
At the upper ends of the slits they are enlarged a little as at m to allow the heads of
the spurs to be inserted through them from the inside, the tools being dropped in from
the upper end of the case, and these enlargements are then covered by the short tube /
subsequently fitted and secured on the upper end of the case. This short tube has
short slits in its lower end coinciding with the slits in the case. Said slits may taper
upward to receive the spurs of the tools and hold them by wedging therein when
forcibly drawn back. It is however preferable to form a small side slot or recess o
near the top of slit e so that the spurs may beturned therein by turning head has
indicated in Fig. 7.
For tools of the kind represented the case a may be fitted with the ordinary
rotating finger cap on the upper end enabling the tool to be rotated by the thumb and
econd finger whilst being pressed on the end by the first finger of one hand.
The spring jaw part 6 of the chuck is connected to the case a by its upper end which

page_text: is inserted for a short distance in the end of the case the hore being bell mouthed at
the upper end to facilitate the entering of the tools to the centre of the chuck.
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 correspondient, I declare that what I claim is :-
:-
1. The combination of the case, the gripping and releasing chuck on one end of the
sama, and two or more tools enclosed in the case provided with projecting spurs which
pass through the slots.
The said tools being capable of sliding out and projecting
from the clack and also being withdrawn into the case and shifted laterally therein.
2. The combination of the slotted case, the chuck on one end of the case, two or
more tools enclosed in the case and having spurs projecting through the slots. The
said tools being capable of sliding out and projecting from the chuck and also of being
withdrawn into the case, and the short tube on the upper end of the case having the
slits coincident with the slits of the case.
3. The combination of the hollow cylindrical slotted case, the gripping and releasing
chuck on the end of the case and central thereto, and having the bell mouth in the
upper end inserted in the case, and two or more tools enclosed in the case, and
having lateral spurs projecting through slots in the case, and being capable of sliding
out and projecting from the chuck, and also being withdrawn into the case and shifted
Interally therein substantially as described.
I Dated this 30th day of Angust 1890.
PHILIP M. JUSTICE.