IMPROVEMENTS IN THE MACHINING OF BOLTS SCREWS & STUDS
Year: 1884

page_text: JOHN WILLIAM PHILLIPS 30 Walbrook London E.C Engineer do hereby declare
the nature of my invention for IMPROVEMENTS IN THE MACHINING OF BOLTS
SCREWS & STUDS to be as follows:-
An improvement by which Bolts or Screws after they are screwed at the
Screwing Machine can have the body part readily and truly turned, faced under
head, and end cut and rounded to length without requiring to be centered.
My invention consists in improvements in the methods adopted in the machining
of Bolts, Studs or Screws after having been screwed in a Screwing Machine, by
holding them in a flanged chuck having a hollow body and which can be bolted
to a Face or Driving Plate of a Lathe, or screwed on to a mandril end of a
Headstock; The mouth of the Chuck is tapered into which is inserted a Die in
two parts bored either plane or screwed to suit the various sizes of Bolts or
Screws, and is held in the Chuck by a Cap screwing on to the body, and screwed
up by a suitable spanner thus closing and gripping the Dies on the Bolt or Screw,
The body part can then be turned and the under side of head faced, By reversing
the Bolt or Screw and inserting through a rectangular slot into the hollow body of
the Chuck the screwed end is put through the Die & the end cut to length and
rounded; by this arrangment Bolts, Screws, Studs can be truly turned and faced
without requiring to be centered to run between centers.
The Chuck can also be used for carrying Boring Bits, Bars, Milling Cutters and
Spindles.

page_text: JOHN WILLIAM PHILLIPS Engineer 30 Walbrook London do hereby declare the
nature of my invention for IMPROVEMENTS IN THE MACHINING OF BOLTS SCREWS &
STUDS and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:―
My invention consists of an Improved Appliance for the machining of Bolts,
Screws or Studs after they have left the Screwing Machine and require to be
turned on the body, faced under the head, and the end cut to length and rounded,
which is carried out by the use of a flanged hollow bodied Chuck having two
opposite longitudinal slots in the body, by which the bolts and screws are entered
into the dies for cutting to length and rounding off; and for turning the body or
plain part of the bolt or screw they are reversed and entered at the mouth of the
Chuck.
The flange end of the Chuck is arranged to bolt to existing Face-plates or
Driving-plates of Lathes, or instead of the flange, a boss may be cast on the body
and screwed to suit the Mandril Nose of a Lathe, but the flange is preferable as it
allows the Chuck to be used universally at any Lathe. The mouth of the Chuck is
bored out taper to receive a die in two or more parts, the die having a tapped or
plain hole through it for holding the Bolts, Screws or Studs The outside of the
Chuck is screwed to take a Cap which on being screwed up forces the die into the
Chuck and closes it upon the Bolt, Stud or Screw that may be held in it.
Fig 1 of the accompanying drawings is a sectional elevation of the Appliance
according to my invention and arrangement whilst Fig 2 is an elevation.
A is the Chuck with a flange for bolting to a Face-plate and B B the longitudinal
slots in the body of the Chuck, C is the cap for screwing the die up, and D the die
with the hole in it either bored out plain or screwed.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed I declare that what I claim is
The combination and arrangement of a Chuck with a long hollow body with
longitudinal slots and having a flange for the ready affixing to any Lathe Face-
plate.
1
100K