A New or Improved Multiple Tool Holder.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
A New or Improved Multiple Tool Holder.
We, WILLIAM THOMAS JONES, of Rose Villa, Alexandra Road, Thames Ditton,
in the County of Surrey, Engineer, and JAMES EATON-SHORE, of Red Cottage,
Angel Road, Thames Ditton, aforesaid, Engineer, do hereby declare the nature
of this invention to be as follows:
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This invention relates to a multiple tool holder by using which in an ordinary
lathe the latter is to all intents and purposes converted into a turret lathe and
the tool holder is also applicable to other machine tools such as planing machines
and the like.
According to this our invention the shank has mounted at or near one end
a pivot or the like on which is mounted a box. This box has a number of holes
therein radiating from the centre for the reception of the various cutters required
and there is a number of holes drilled and tapped passing into the holes for the
reception of the cutters. The tapped holes have set screws therein for jamming
the cutters in their holes. In order to hold the box steady and to prevent it
from turning round there is a lever pivotted to and guided on the shank, one
end of which lever is made slightly tapered and adapted to take into each of a
number of slightly tapered holes or slots in the box and the lever is normally
kept in place by means of a spring. It is not however essential that the cutters
should be held tight by set screws, nor do we limit ourselves to the use of a lever
for holding the box in position as any other clamping devices may be employed.
Dated this Fifteenth day of September 1898.
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.
A New or improved multiple
We, WILLIAM THOMAS JONES, of Rose Villa, Alexandra Road, Thames Ditton,
in the County of Surrey, Engineer, and JAMES EATON-SHORE, late of Red
Cottage, Angel Road, Thames Ditton, aforesaid, but now of Ditton House,
Rugby, in the County of Warwick, Engineer, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement:
_
This invention relates to a multiple tool holder which, when used in the slide
rest of an ordinary lathe, converts the latter to all intents and purposes into a

page_text: turret lathe, and which is also applicable to other machine tools such as planing
machines and the like.
Figure 1 of the accompanying sheet of drawings represents a tool holder con-
structed according to our invention in plan.
Figure 2 is a side elevation thereof and
Figure 3 is an end elevation thereof.
The shank A has mounted at or near one end a pivot B or the like on which
is mounted a box C. The lower parallel part of the pivot B is made to fit
tightly into a hole near the end of the shank A and is fixed there by means of
a nut B. The upper part of the pivot B is made partly conical as indicated
by the dotted lines Figure 1. Above the conical part the pivot is screw threaded
and if desired it is made flat on one side, so that the washer B2 may fit easily
thereon but cannot turn. The nut B3 serves to clamp the box C securely in any
position on the shank A. The box C has a number of holes C¹ therein radiating
from the centre for the reception of the various cutters required and at right
angles to these holes C there is a number of holes drilled and tapped passing
into the said holes C for the reception of the cutters. The tapped holes have
set screws therein for jamming the cutters in their holes. In order to hold
the box steady and to prevent it from turning round there is a lever D pivotted
to a bolt A and guided between say cheeks A2 on the shank A. One end of this
lever D, say at 11 Figure 1, is made slightly tapered and adapted to take into
each of a number of parallel or slightly tapered holes or slots C³ in the box C
and the lever is normally kept in place by means for instance of a spring A³.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:-
1. A multiple tool holder for use in the slide rest of a lathe consisting of a
shank a pivot on said shank a box mounted on said pivot, holes in the box for
the reception of the tools, means for clamping the tools and means for holding
the box in any desired position substantially as described.
2. In a multiple tool holder the combination of a shank, a conical pivot on
said shank a box adapted to be revolved on the conical pivot, holes in the box
for the reception of cutters, set screws for jamming the cutters in position, a
lever pivotted to the shank and provided with a tapered end, slots in the box
adapted to receive the lever and a spring to normally hold the lever in one or
other of the said slots substantially as set forth.
3. In a multiple tool holder the combination of a shank adapted to be clamped
in the tool clamp of a machine tool a conical pivot on said shank a box adapted
to be revolved on the conical pivot, holes in the box for the reception of cutters
means for jamming the cutters in position and means for holding the box in
any desired position for one or other of the cutters to be in operation substan-
tially as described and shewn.
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1 11.
TIP
JENSEN & SON,
77, Chancery Lane, London, W.C., Patent Agents.