Applied to Lathes and other Machine Tools.
Year: 1885

page_text: Applied to Lathes and other Machine Tools.
I WILLIAM HARTCLIFFE, of St Simon Street, Salford, in the County of Lancaster,
Chain Manufacturer, do hereby declare the nature of said Invention for AN
IMPROVED TURNING, BORING, AND FINISHING APPARATUS, TO BE APPLIED TO LATHES
AND OTHER MACHINE TOOLS, to be as follows:-
The object of my Invention is to construct an improved apparatus for turning,
boring, and otherwise finishing studs, pins, bowls, and similar articles in a quick
and simple manner.
In applying my Invention to a lathe I fit the improved apparatus to the spindle
of the "following-up" headstock or to a slide rest; the stud or other article to be
turned, bored and finished is secured in a chuck or other device and fixed to the
headstock spindle; the cutter which may be of any desired shape is secured in
the apparatus which also carries an adjustable bush or guide with a hole or
opening of suitable size to receive the stud or other article to be turned or bored.
The operation is as follows:-When the stud or other article is in its place the
spindle in the "following-up" headstock or slide rest is fed forward until the
revolving stud guided and supported by the bush comes into contact with the cutter
which is set to remove the metal from the surface, and simultaneously to bore out
the end if required. In place of rotating the stud or other article the improved
apparatus might be revolved and the stud held stationary.
The apparatus is also applicable for finishing bushes (after they have been bored)
the bush being secured on the end of a mandrel the shank of which is supported
by the adjustable bush or guide previously described.
The bush under operation may be turned, squared, and also recessed by a single
cutter of the requisite shape or the improved apparatus may be secured to a
[compound slide rest in which case a number of cutters with their respective guide
bushes may be used so that several operations may be performed in rotation as
required.

page_text: An Improved Turning, Boring, and Finishing Apparatus to be
Applied to Lathes and other Machine Tools.
I WILLIAM HARTCLIFFE, of St Simon Street, Salford, in the County of Lancaster,
Chain Manufacturer, do hereby declare the nature of said Invention for AN
IMPROVED TURNING, BORING, AND FINISHING APPARATUS TO BE APPLIED TO LATHES
AND OTHER MACHINE TOOLS, and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:—
The object of my Invention is to construct an improved apparatus for turning,
boring and otherwise finishing studs, pins, bowls and similar articles in a quick
and simple manner.
In applying my Invention to a lathe I fit the improved apparatus to the spindle
of the "following-up" headstock or to a slide rest, the stud or other article to be
turned bored and finished is secured in a chuck or other device and fixed to the
headstock spindle; the cutter which may be of any desired shape is secured in
the apparatus which also carries an adjustable bush or guide with a hole or opening
of suitable size to receive the stud or other article to be turned or bored.
The operation is as follows:-When the stud or other article is in its place the
spindle in the "following up" headstock or slide rest is fed forward until the
revolving stud, guided and supported by the bush comes into contact with the cutter
which is set to remove the metal from the surface and simultaneously to bore out
the end if required. In place of rotating the stud or other article the improved
apparatus might be revolved and the stud held stationary.
The apparatus is also applicable for finishing bushes (after they bave been bored)
'the bush being secured on the end of a mandrel the shank of which is supported
by the adjustable bush or guide previously described.
The bush under operation may be turned, squared, and also recessed by a single
cutter of the requisite shape, or the improved apparatus may be secured to a
compound slide rest in which case a number of cutters with their respective guide
bushes may be used so that several operations may be performed in rotation as
required.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying Sheet of Drawings, reference being
had to the figures and letters marked thereon.
Fig. 1 is a front view and Fig. 2 a plan of my improved apparatus as made to
be secured into the spindle of the "following up" headstock of a lathe. Fig. 3 is
'a detailed view of a mandrel and a recessed and finished bush in section and Fig. 4
is a view of the bush before it has been recessed and finished.
"
In Figs. 1 and 2-a is the body of the apparatus, a¹ the shank fitted to the
spindle of the "following up headstock of a lathe or other machine tool (not
shown), b is a loose bush fitted and secured, by a screw b' into a hole in the body a
and in line with the shank a¹; a loose cutter c is secured to the body a by a taper
key d, the cutter being adjusted by a set screw e which passes through a hole in
the bracket f secured to the body of the apparatus; g is a mandrel on which is a
bush h. as best shown in detailed views Figs. 3 and 4.

page_text: The operation is as follows:-To finish a number of bushes I take a conveniently
sized mandrel g one end of which is secured in a chuck or otherwise to the lathe
headstock spindle; a bush b with a hole of suitable size to support the front end
of the mandrel g with the bush h is secured by the set screw b¹ into the body a
which also carries a cutter c formed to shape the outside and inside of the bush
which has previously been secured on the mandrel; by giving motion now to the
lathe and mandrel and by bringing the following up headstock and apparatus
forward the bush h may be finished to the desired shape outside and inside
according to the form of the cutter c.
The bushes are removed from the mandrel when finished by a "tommy" or in
other convenient manner.
Studs may be turned, squared or recessed at the end with my improved
apparatus by supporting the revolving piece of metal from which the studs are to
be cut in the bush b, and using a cutter c of the desired form.
À convenient means of cutting off the finished studs is to move back the
apparatus with the "following-up" spindle and employ a cutting off tool in the
usual manner after which the apparatus is again brought forward to finish another
stud ready to be cut off.
When my improved apparatus is employed to operate with successive cutters on
the same piece of metal I make the body a with a shank projecting from its lower
side which fits into and is secured to a compound slide rest and the apparatus has
any desired number of holes fitted with adjustable guide bushes and cutting tools.
In this case the slide rest is moved to bring the different adjustable bushes and
cutters in position in the rotation necessary to complete the studs, bushes or other
articles.
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. The apparatus for turning, boring, or finishing studs, bushes, and the like,
said apparatus consisting of a body with an adjustable bush or guide, a cutting
tool and a shank to be secured either to the spindle of the "following-up or
driving headstock or slide rest of a lathe or other machine tool for the purposes
described and as illustrated by the Drawings annexed.
2. The use and application of additional bushes or guides and cutting tools to
the improved apparatus when used in conjunction with the compound slide rest of
a lathe or other machine tool, substantially as herein set forth.