Improvements in or connected with Chucks or Holding Devices for Lathes, Drills, and the like.
Year: 1898

page_text: Date of Application, 8th July, 1898
Complete Specification I oft 10th Ann 1800 Accented 20th May 1800
Date of Application, 8th July, 1898
Complete Specification Loft 10th Apr 1800 Accented, 20th May 1500
Improvements in or connected with Chucks or Holding Devices for
Lathes, Drills, and the like.
We, ERNEST HENRY STANFIELD, Engineer, of 28, Irongate Wharf Road,
Paddington, and FREDERICK RANDOLPH MARTIN, Engineer, of 2, Whittlesey
Street, Cornwall Road, S.E., both in the County of London, do hereby declare
the nature of this invention to be as follows:-
This invention for improvements in or connected with chucks or holding
devices for lathes, drills and the like has for its object to enable cycle lugs and
similar fittings having bosses or parts at angles to the body or other part to be
easily and accurately turned, bored, drilled or otherwise machined.
A holding device constructed according to this invention consists of a small
face plate or chuck proper, a gimbal ring in which the face plate or chuck proper
is held, a headstock in which the gimbal ring is mounted, and a slide on which
the headstock works.
In one arrangement the small face plate is provided with a long boss that slides
freely through the gimbal ring and can also be rotated therein. When adjusted
to the required position the boss is secured in the ring by tightening up the ring
or by other suitable means. If desired the boss may be provided with a dividing
plate and with mechanical means for traversing and rotating it in the ring. It
will readily be understood that this part holds the work and can be readily
romoved without releasing the work.
H
The gimbal ring can also be turned round in the headstock either by hand of
by mechanical means and may be provided with a division plate. The ring can
be fixed by means of a set screw or other suitable device. The ring is also
arranged to be readily removable from the headstock..
The slide on which the headstock works may be a slide on a face plate or may
be a separate piece adapted to be fixed on the face plate.
It will readily be seen that if one part of an angled piece is held on the face
plate, that the other parts can be successively set true to the lathe or drill spindle
for machining, and without releasing the work from the chuck. .
Dated this Sth day of July 1898
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Chucks or Holding Devices for
Lathes, Drills, and the like.
We, ERNEST HENRY STANFIELD, Engineer, of 28, Irongate Wharf Road,
Paddington, and FREDERICK RANDOLPH MARTIN, Engineer, of 2, Whittlesey
[Price 8d.]

page_text: Street, Cornwall Road, S.E., both in the County of London, 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 for improvements in or connected with chucks or holding
devices for lathes, drills and the like has for its object to enable cycle lugs and
similar fittings having bosses or parts at angles to the body or other part to be
casily and accurately turned, bored, drilled, or otherwise machined.
A holding device constructed according to this invention consists of a small
face plate or chuck proper a gimbal ring in which the face plate or chuck proper
is held, a headstock in which the gimbal ring is mounted and a slide on which
the headstock works.
In the accompanying sheet of illustrative drawings Fig. 1 is a front elevation
of a chuck or holder constructed according to this invention; Fig. 2 is a side
elevation, and Fig. 3 a plan of the same. Fig. 4 is a vertical section on the
line Fig. 3.
The face plate a is provided with a long boss that slides freely through the
gimbal ring or socket and can also be rotated therein. When adjusted
to the required position the boss is secured in the socket by screwing up the
nut of the tightening wedge bolt e. If desired the boss may be provided
with a dividing plate and with mechanical means for traversing and rotating it
in the ring. The work is secured in the plate and it will readily he seen that
the plate can be removed without releasing the work by slackening the nut d.
The socket is mounted by trunnions in links f themselves mounted on
lugs and forming the sides of the headstock h. The socket can be turned
round in the links as shown in dotted lines, Fig. 2, either by hand or by
mechanical means and may be provided with a division plate. When adjusted
the socket is fixed by tightening screws which draw together the sides of the
links and cause them to clamp both the trunnions and the lugs g on the base
of the headstock. The socket is readily removed from the headstock by loosen-
ing either of the links f. Slotted lugs are formed on the base of the headstock
by means of which the headstock is adjusted and bolted to the slide.
The slide on which the headstock works may be a slide on a face plate or may
be a separate piece adapted to be fixed on the face plate.
It will be seen that if one part of an angled piece is held on the face plate,
that the other parts can be successively set true to the lathe or drill spindle for
machining, and without releasing the work from the chuck.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare the what
we claim is;-
1. A chuck or holding device comprising a small face plate or chuck proper
a gimbal ring or socket in which the face plate is capable of being adjusted and
secured, a base or headstock proper, links for adjustably connecting the said
socket and headstock and means for clamping the connecting links so as to fix
the chuck in any desired position, substantially as described.
2. The improved chuck or holding device for lathes, drills and the like, sub-
stantially as described with reference to the drawings.
Dated this fith dure of invl 1200
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents."