Year: 1886

page_text: Date of Application, 24th Sept., 1886.
Complete Left, 18th June, 1887.
Complete Accepted, 19th Aug., 1887.
*We, ROBERT ALLEN and WILLIAM JAMES WAKEFIELD, of West Challow, Wantage,
in the County of Berkshire, Machinists do hereby declare the nature of this invention
to be as follows :-
The object of our invention is to provide a tool that will serve as a screw-plate,
gauge, and wrench.
The screw-plate now in ordinary use is furnished with two rows of holes with a
screw thread cut in them varying slightly in size. Joined to these by a thin slot are
small holes one each side to permit the cuttings to leave the die easily.
A gauge or template is combined in one tool with this apparatus in the following
manner. Two additional rows of holes corresponding to the screw holes are made in
the plate on the outside of the screw holes. The holes in one of these rows are made
the right diameter to serve as a gauge for the drills required to cut a hole for the
female thread of a size corresponding to the screw hole in the plate. By this
contrivance we obviate the evils of having a bad thread in consequence of the hole
being too large, or a broken tap through the hole being too small. The holes in the
other additional row are made of the right diameter to form the male thread on the
rod or bolt to be screwed with the corresponding screw hole, thus ensuring the proper
size without risk of breaking the die, or stripping the thread, or twisting off the
piece that is being screwed. If required another row of holes could be added to
form clearing holes for the male thread to pass through.
A convenient modification of the above method is attained by having the new rows
of holes in the place of the clearing holes on the outside of and joined to the screw
holes; or both methods may be combined on one plate by making a row of holes
down the centre of the plate between the dies as a clearing hole template for the
inale threads.
The handle of the plate is furnished with a slot or hole to fit the end of the tap,
and is thus adapted to serve as a wrench for the tap. The handle is screwed into the
plate, or attached to it in any other way that is both secure and convenient for putting
on or off.
W. H. MUNNS,
Agent for the Applicants.

page_text: We, ROBERT ALLEN, and WILLIAM JAMES WAKEFIELD, of West Challow, Wantage,
in the County of Berkshire, Machinists 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 :-
The object of our invention is to provide a tool that will serve as a screw plate,
gauge, and wrench.
The screw plate now in ordinary use is furnished with two rows of dies varying
slightly in size. Joined to these by a narrow slot are small holes on each side to
permit the cuttings to leave the die easily.
We combine a gauge or template in one tool with this in the following manner:
Two additional rows of holes corresponding to the dies are made in the plate on the
outside of the dies. The holes of one of these rows are made the right size to serve
as gauges for the tapping drills required to cut a hole for the female thread corre-
sponding to the dies. By the use of this contrivance we obviate the danger of
having a bad thread, through the hole being too large, or a broken tap, through the
hole being too small. The holes in the other additional row are made of the right
size to serve as gauges for the rods to be cut by the corresponding dies, thus ensuring
the proper size of rod, and avoiding the danger of breaking the die, or stripping the
thread, or twisting off the piece that being screwed. The notched clearing holes
can be put on the plate if desired in the usual manner. The gauges may be joined
to the dies by narrow slots so as to dispense with separate clearing holes.
The handle is either made in one piece with the plate in the usual manner, or is
attached to the plate at either end by any method that is both secure and adapted for
quickly putting on and taking off. In the handle is a slot to receive the end of the
tap, and various contrivances are adopted for adjusting the size of the slot so as to
hold the tap firmly. With the tap thus secured the handle serves as a wrench.
To show more clearly how our invention is carried into effect we furnish drawings
in which similar letters represent corresponding parts throughout.
Fig. 1 is a plan of plate and part of handle showing dies, gauges, and clearing
holes.
Fig. 2 is a plan of plate and part of handle with another arrangement of dies,
gauges, and clearing holes, one row of clearing holes serving as clearing drill gauges.
Fig. 3 is a longitudinal vertical section through plate and handle, not showing holes
in the plate, but showing the method of securing handle to plate, and of adjusting the
size of the slot in the handle.
Fig. 4 is longitudinal vertical section through handle showing another method of
adjusting the size of the slot.
Fig. 5 is a longitudinal vertical section through handle showing another method
of adjusting the size of the slot. The tap is shown in position.
Fig. 6 is a vertical transverse section through junction of plate and handle.
Fig. 7 is a plan of plate and part of handle, in which the gauges are shown on the
edges of the plate, the gauges for the tapping drills being angular so as to show if
the tapping drills are central at the point.
Fig. 8 is a plan of shortened form of plate, in which all the notched holes serve
as dies or gauges. The inner notched holes attached to the central dies serve as

page_text: W. H. MUNNS,
Agent for the Applicants.