Improvements in and relating to Lathes.
Year: 1892

page_text: Date of Application, 27th June, 1892
Complete Specification Left, 27th Apr., 1893-Accepted, 10th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in and relating to Lathes.
I CHARLES MONTAGUE LINLEY of 16 Carmalt Gardens, Putney, in the County
of Surrey, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to certain improvements in the construction of lathes, the
object being to enable duplicate pieces of work to be produced with more accuracy,
and rapidity than at present obtains.
A sliding bolt
In place of the usual capstan or turret tool rest, I use a rest constructed in
the following manner :-On a suitable slide rest I mount a circular plate adapted
to swivel on a central pin and provided with a locking catch whereby it may
be locked in two or more positions for drilling, turning etc. On the central pin
is mounted a block having radial slots formed in its underside.
mounted in the circular plate is adapted to engage with one of these slots and
so lock the block to the circular plate in any desired position. To this block
are fulcrated at convenient distances apart a series of tool-holders, in the under-
side of each of which is a slot for the sliding bolt herein before referred to to
engage with.
A plate fits over the central pin and is locked down on to the
tool-holders by a suitable nut or its equivalent after the desired tool-holder is
placed in position. To place any desired tool-holder in position, the sliding
bolt is withdrawn and the block carrying the tool-holders rotated until the
desired holder is in position, when the sliding bolt is pressed in to lock both
the block and the particular holder in position. The other tool-holders are then
folded back out of the way and the whole locked down by the clamp nut.
The slide rest carrying the capstan or turret rest is mounted on a slide rest
working transversely in the saddle of the main slide rest. This transverse slide
rest is operated by a screw in the usual manner. On the bed of this slide rest
is mounted a second screw carrying a travelling nut adapted to engage with a
stop mounted on the slide. This stop
so mounted that it may be either
lowered to engage with the travelling nut or raised clear of it, and it is pro-
vided with any suitable device to lock it in either position. The screw operating
the travelling nut is actuated by a small wheel graduated round its edge so
that the position of the travelling nut can be gauged with accuracy.
object of this device is to enable the transverse slide rest to be brought up to
its work again after withdrawal-in exactly the same position.
The
To enable pieces of work having two or more parts of various diameters to
be readily duplicated, I mount on an extension of the bed of the transverse
slide rest a spindle, on which are fulcrated a series of arms or levers the lengths
In the end of
of which are adjustable by means of any suitable mechanism.
the slide rest are cut or formed a series of transverse grooves, or their equiva-
lents, adapted to receive a cross bar against which the ends of the adjustable
arms or levers fulcrated to the bed of the slide rest abut. The exact position
of the transverse slide rest for each of the various diameters of the piece of
work can thus be assured by bringing each of the said arms or levers into
operation to limit the transverse movement of the slide rest.
1
CE
1000
ROBT. ED. PHILLIPS, M.1.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.

page_text: Improvements in and relating to Lathes.
1, CHARLES MONTAGUE LINLEY, of 16 Carmalt Gardens, Putney, in the
County of Surrey, Engineer, 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:-
My invention relates to certain improvements in the construction of lathes, the
object being to enable duplicate pieces of work to be produced with more accuracy,
and rapidity than at present obtains.
I attain this end by the mechanism illustrated in the accompanying drawings, in
which Figure 1 Sheet No. 1 is a view in side elevation-partly in section-of part
of a lathe embodying my invention and Figure 2 Sheet No. 2 is a view in plan
thereof.
Throughout these views similiar parts are marked with like letters of reference.
Many of the parts which present no novel features are omitted in the drawings for
the sake of distinctness.
On a suitable slide rest A. is mounted a circular plate B adapted to swivel on a
central pin C carried by the slide rest. This plate B is provided with a locking
catch whereby it may be locked to the slide rest in two or more positions for
drilling, turning etc. On the central pin C is loosely mounted a block D having
radial slots d formed in its underside. To the block D are fulcrated-at convenient
distances apart a series of tool-holders F, F, etc. in the underside of each of which
is a slot. In the circular plate B is mounted a sliding bolt E carrying two
projections e and e, the former adapted to engage with one or other of the
slots d, d, etc. in the block D, and the latter with the slot in one of the tool-
holders F, thus locking both the block D and one of the holders F in a radial
position with respect to the plate B. A plate G fits over the central pin C and is
adapted to be locked down on to the tool-holders F, F, etc. by a lever nut c or its
equivalent, after the desired tool-holder is placed in position.
To place any desired tool-holder in position, the sliding bolt E is withdrawn, and
the block D carrying the tool-holders F, F, etc. is rotated until the desired holder
is in position, when the sliding bolt E is pressed in to lock both the block D
and the particular tool-holder F required in position. The other tool-holders are
then folded back out of the way and the whole clamped down to the plate B by the
nut c acting on the clamp plate G.
The slide rest A carrying the plate B is mounted on a slide A' working
transversely in the saddle A2 working on the main bed of the lathe. This
transverse slide A is operated by a screw in the usual manner. In the saddle A2
is mounted a screw H carrying a travelling nut adapted to engage with a stop J
mounted in the slide A'. This stop J is threaded into the slide so that by turning
it, it may either be lowered to engage with the travelling nut h, or raised clear of
it. The screw H operating the travelling nut is actuated by a small wheel Hi
graduated round its edge so that the position of the travelling nut can be gauged
with accuracy. The object of this device is to enable the transverse slide rest A¹
to be brought up to its work again-after withdrawal-in exactly the same
position.
To enable pieces of work having two or more parts of various diameters to be
readily duplicated, a series of levers K, K, etc., the lengths of which are capable of
being varied, are fulcrated on a spindle L mounted in a bracket L formed on or
fixed to the saddle A. The method I prefer to adopt to make these levers
adjustable in length is to screw.in each of them an adjustable bolt fitted with a
lock nut as illustrated. In the end of the slide-rest A¹ are cut or formed a series
of transverse slots or grooves or their equivalents M, M, etc. adapted to receive a

page_text: The
cross bar N against which the ends of the adjustable arms or levers Kabut.
exact position of the transverse slide rest for each of the various diameters of the
piece of work can thus be assured by bringing each of the said arms or levers into
operation to limit the transverse movement of the slide rest. The levers not
required are turned back on the spindle L out of the way.
To provide for fixing all the tool-holders in a radial position with respect to the
block D the plate G is provided with cone-pointed screws g, g, etc. adapted to
engage with countersunk holes in the tops of the tool-holders."
I wish it to be particularly understood that I do not limit myself to the precise
details of construction herein before described and illustrated by the accompanying
drawings, but that I hold myself at liberty to make such changes and alterations as
fairly fall within the spirit and scope of my invention.
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. The improvements in and relating to lathes, substantially as hereinbefore
described and illustrated by the accompanying drawing.
2. In a lathe, the combination with the slide rest, of the circular plate B
carrying the pin C, of the block D having a series of radial slots d, d, etc., of the
tool-holders F, F, etc. fulcrated to the block D and each having a slot in its
underside, of the clamp plate G and nut c, of the locking catch b, and of the sliding
bolt E having a projection e adapted to engage with one of the slots d, d, etc. in the
block D and a projection el adapted to engage with the slot in one of the tool-
holders F, all combined arranged and operating as and for the purpose set forth.
3. In a lathe, the combination with the main transverse slide, of the adjustable
levers K, K, etc. fulcrated on the spindle L carried by the bracket L' formed on or
fixed to the saddle A2 on the main bed of the lathe, of the extension of the main
transverse slide having the slots or grooves M, M, etc., and of the cross bar N
adapted to engage with the slots or grooves M, M, etc., all combined arranged and
operating as and for the purpose set forth.
4. In a lathe, the combination with the main slide rest, of the screw H adapted
to be operated by the graduated wheel H¹, of the travelling nut / threaded on the
screw H, and of the stop mounted in the transverse slide, all combined, arranged
and operating, as and for the purpose set forth.
5. In a lathe the combination with the slide rest, of the circular plate B carrying
the pin C, of the block D having a series of radial slots d, d, etc., of the tool-
holders F, F, etc. fulcrated to the block D and each having a slot in its underside,
of the clamp plate G and nut c, of the locking catch b, of the sliding bolt E having
a projection e adapted to engage with one of the slots d, d, etc. in the block D and
a projection e' adapted to engage with the slot in one of the tool-holders F, of the
adjustable levers K, K, etc. fulcrated on the spindle L carried by the bracket L'
formed on or fixed to the saddle A² on the main bed of the lathe, of the extension
of the main transverse slide having the slots or grooves M, M, etc., and of the cross
bar N adapted to engage with the slots or grooves M, M, etc. all combined arranged
and operating, as and for the purpose set forth.
j
6. In a lathe, the combination with the slide rest, of the circular plate B
carrying the pin C, of the block D having a series of radial slots d, d, etc., of the
tool-holders F, F, etc. fulcrated to the block D and each having a slot in its
underside, of the clamp plate G and nut c, of the locking catch b, of the sliding
bolt E having a projection e adapted to engage with one of the slots d, d, etc. in the
block D and a projection e' adapted to engage with the slot f in one of the tool-
holders F, of the adjustable levers K, K, etc. fulcrated on the spindle L carried by
the bracket L' formed on or fixed to the saddle A on the main bed of the lathe, of
the extension of the main transverse slide baving the slots or grooves M, M, etc.
of the cross bar N adapted to engage with the slots or grooves M, M, etc., of the
screw H adapted to be operated by the graduated wheel H', of the travelling nut k

page_text: threaded on the screw H, and of the stop J mounted in the transverse slide, all
combined, arranged and operating, as and for the purpose set forth.
Dated this 27th day of April 1893.
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.