Improvements in Turret Lathes.
Year: 1899

page_text: Date of Application, 7th Dec., 1899
Complete Specification Left, 14th Sept., 1900-Accepted, 10th Nov., 1900
FRUVISIVAAL SPECIFICATION.
Improvements in Turret Lathes.
I, JAMES BROCKIE, of No. 12, Tyson Road, Forest Hill, in the County of
Kent, Engineer, do hereby declare the nature of this invention to be
as follows:-
My invention relates to improvements in turret lathes of the kind in which
the tools are fixed in a circle facing the chuck, these improvements relating
mainly to the construction of the tool-disc and its mounting on the traversing
saddle and also to an arrangement of the cross-cutting or forming slide in com-
bination with the tool-disc.
According to my improvements I construct the traversing saddle which slides
along the bed of the lathe with a ring projecting upwards, and within this ring,
I fit the tool disc capable of being rotated within the ring, so as to bring successive
tools to act on the work. Behind this ring and disc I fit on the saddle a cross
cutting or forming slide to act on a bar or other piece of work projecting through
hollow tools, or openings in the vertical disc.
The tool holding dise may be turned in any known manner so as to bring
successive tools into action. It is also preferably provided with means of turning
it partly round by hand so as to effect cutting off or such like operations by tools
fixed on it, and also to adjust the tools for depth of cut and to disengage them
before moving back the saddle.
The vertical turret and the cross-slide may be mounted upon a turn-table pro-
vided on the saddle, so that by turning the whole partly round in a horizontal
plane, the cross slide can be brought next the chuck for surfacing and like
operations.
For the purpose of limiting the forward movement of the saddle for each tool,
I fit in a circle around the centre of the disc, adjustable pins, one for each
tool projecting from the face of the disc more or less as required, and I fix a
suitable stop in such a position that each pin as it advances with the turret meets
the stop and prevents the tool from advancing farther.
The stop may be so arranged as to effect the throwing of the saddle out of
gear and also definitely stopping the advance of the tool.
Dated this 7th day of December 1899
ABEL & IMRAY,
Agents for the Applicant.

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
-
My invention relates to improvements in turret lathes of the kind in which
the tools are fixed in a circle facing the chuck, these improvements relating
mainly to the construction of the tool-disc and its mounting on the traversing
saddle, and also to an arrangement of the cross-cutting or forming slide in com-
bination with the tool-disc. The accompanying drawings show a construction
according to my invention.
Fig. 1 is a front view of the turret and saddle, the turret facing the mandrel of
the lathe.
Fig. 2 is a side elevation of the saddle and turret.
Fig. 3 is a section through the turret and its supporting ring at A A Fig. 1.
I construct the traversing saddle a which slides along the bed 6 of the lathe,
with a ring c projecting upwards and within this ring, I fit the tool disc d
capable of being rotated within the ring c, so as to bring successive tools e to
act on the work f. Behind this ring and disc I fit on the saddle a cross cutting
or forming slide g to act on a bar or other piece of work projecting through
hollow tools or openings in the disc d. The tool holding disc d may be turned
in any known manner so as to bring successive tools into action. It is also
preferably provided with a bevil toothed rim h and pinion k for turning it partly
round by hand, so as to effect cutting off or such like operations by tools fixed on
it, and also to adjust the tools for depth of cut and to disengage them before
moving back the saddle.
For the purpose of limiting the forward movement of the saddle for each tool,
I fit in a circle around the centre of the disc, adjustable pins p, one for each
tool, projecting from the face of the disc more or less as required, and I fix a
suitable stop in such a position that each pin as it advances with the turret meets
this stop and prevents the tool from advancing further.
The stop may be so arranged as to effect the throwing of the saddle out of
gear, and thus definitely stopping the advance of the tool.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is:
-
1. A slide rest for a turret lathe consisting of a saddle fitted to slide along the
bed of the lathe and having projecting up from it a vertical ring within which
is fitted to revolve a circular disc having various tools fixed upon it, substantially
as described and illustrated.
2. In combination with a turret slide rest such as is above referred to, a cross
cutting slide fitted upon the saddle behind the tool disc, substantially as described.
Dated this 14th day of September 1900.
ABEL & IMRAY,
Agents for the Applicant.