Improvements in Hand Tools.
Year: 1890

page_text: Date of Application, 12th Dec., 1890
Complete Specification Left, 4th Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Hand Tools.
JAMES BICKLE Great Western Docks Plymouth Engineer, do hereby declare
the nature of this invention to be as follows:-
My invention relates to a combination stud tool in which adjustable dogs or dies
are carried and caused to grip studs of any dimensions for drawing or withdrawing
as well as serving the purpose of an adjustable die nut for cutting screw threads
when required & for tapping studs.
For this purpose the combination stud tool is constructed of a centre die holder,
hollow in form & carrying 3 dies or dogs having their outside edges taper with a lip
to prevent them from falling through, the other end of this centre piece is provided
with a screw thread & prepared to receive a spanner or wrench an outer piece
having a cone formed on its under periphery is brought into contact with dies or
dogs by means of a nut forcing & holding the dogs or dies in contact with the stud
or screw.
For topping studs a cutter bar carrying a knife is fixed in the centre piece
by means of a cap nut & forced against its work by a spanner or wrench.
Dated this 5th day of January 1891.
JAMES BICKLE.
COMPLETE SPECIFICATION.
Improvements in Hand Tools.
JAMES BICKLE of the Great Western Docks, Plymouth in the County of Devon
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 improvements in hand tools to be used for the several
purposes of forcing and withdrawing screw studs cutting screw threads and
recutting damaged screw threads on screw studs or the like and finishing or
shortening the ends of screw studs.
The object of my invention is to produce an efficient combination hand tool to
perform these several before mentioned purposes with greater dispatch and efficiency
than is done by the ordinary methods in present use.
In order that my invention may be clearly understood I will now proceed to
describe the same by the aid of the accompanying drawings in which
Fig. 1. is a sectional elevation of the hand tool complete with the exception of
the topping or cutter bar and milled capped nut.
Fig. 2. is a view in elevation of the inner body or dog holder of the hand tool.
Fig. 3. is a view in elevation of the outer body of the hand tool.
Fig. 4. shews a view in elevation of the tightening nut which fits into the outer
body of the hand tool and contains an internal screw into which easily fits the inner
body A shewn in Fig. 2.
Fig. 5. shews a view in elevation of the complete hand tool.
Fig. 6. shews a view in sectional elevation of the complete hand tool provided
with topping tool or cutter bar and milled cap nut for holding same in position.
Fig. 7. shews a view in elevation of the topping tool or cutter bar.
Fig. 8. shews a view of the topping tool or cutter bar in plan.
Fig. 9. shews a view in elevation of the milled cap nut which holds the topping
Gool or cutter bar in position.

page_text: Fig. 11. shews a view in plan of the outer body of the hand tool shewn in eleva-
tion at Fig. 3.
Fig. 12. shews a view of the tightening nut shewn in elevation at Fig. 4.
Fig. 13. shews a view of a set of cast steel dogs or holders as used for gripping
the unscrewed parts of steel screws or the like.
Fig. 14. shews a view of a set of screwed cast steel dies used for the purpose of
cutting screw threads and recutting damaged screw threads on screw studs or
the like.
The alphabetical lettering on the various figures have the same meaning in all the
figures.
It will be clearly seen from reference to the various figures on the accom-
panying drawings that the hand tool consists essentially of an outer body B
constructed preferably of steel-the outside of which may be of any regular form
as round hexagonal or the like, the inner portion being round, a portion of its
inner length is tapered from the bottom inwards the central portion being cylindrical
and the upper portion being shouldered to a larger internal diameter into which
fits and free to turn easily is the tightening nut E provided with an hexagonal
exterior for spanner or wrench fitting the outer periphery of the tightening nut C.
as shewn in Fig. 4. is grooved into which fits a tongue piece G fitted in the outer
body B and kept in position by the head of the round headed screw H. The object
of this groove is to allow the tightening nut C to turn freely without rising out of
its position in the outer case or body B. The upper part of the inner body A is
fitted or shaped as a square head for wrench fitting, immediately below and for a
greater portion of its length is a screw which fits freely into the tightening nut C.
The lower portion beneath the screw is slightly larger in diameter and contains
three rectangular holes sloping inwardly and holds the dogs or dies D¹ or D² as
required. The inner part of A is hollowed out for the purpose of holding the
cutter bar F and also to allow the studs being operated upon to pass upwards
through the hand tool. The cutter bar F is constructed of cast steel and the lower
part is fitted with a cutting edge and tempered for the purpose of finishing or
shortening the ends of screw studs, an oil groove is cut along a greater portion of
its length as shewn in Fig. 7. The upper part is provided with a square head to
take a wrench and also a collar over which fits the milled cap nut E internally
screwed the same diameter and pitch as the screw in the tightening nut C. The
dogs or dies D1 and D2 are constructed of cast steel and are fitted to the rectangular
sloping holes in the inner body A and are shaped at the back to fit the inwardly
tapering part of the outer body B. When the tool is placed in position on a stud
and the tightening nut C is turned forcing the body B downwards causing the dies
or dogs D to close together on the screw stud. When the hand tool is used as a
screw cutter or recutter of damaged screw threads cast steel screwed dies D' are
fitted in the rectangular holes in the inner body or die holder A. The hand tool
used for screwing purposes provided with adjustable dies D will prove efficacious
where ordinary screwing apparatus would be useless.
When the hand tool is to be used for the purpose of forcing or withdrawing studs
the rectangular holes of the inner body or die holder A is fitted with cast steel
dogs D provided with serrated faces as shewn in Fig. 13. Both dogs and dies D¹
and D2 are provided at the back end with a slight projection as shewn to prevent
falling through the holes in A.
When the hand tool is to be used for the purpose of finishing or shortening of
steel studs the cutter bar or topping tool F is placed in the hand tool as shewn in
Fig. 6 and the milled cap nut E fixed on the upper part of the inner body A. keep
the cutter bar Fin position while yet free to turn.
Having now described the construction of the hand tool in all its requirements it
will be clearly seen that when the hand tool is to be used for screwing or recutting
damaged screw threads dies are provided as shewn in Fig. 14, the hand tool being
slipped over the stud to be cut or rescrewed the turning of the tightening nut

page_text: closes the dies D together on the stud to be operated upon a wrench on the inner body
turning the same cuts or recuts the screw as required.
The hand tool when required to force or withdraw studs the dies D' are removed
and give place to the dogs D' the dogs are forced to close on the studs and the
turning of the inner body A as before forces or withdraws the studs as required.
When the hand tool is used as a finisher or stud end shortener the cutter bar F
is placed in the hand tool together with the milled cap nut E the dies D' are used
the hand tool being placed over the stud to be topped and the cutter bar F being
turned with a wrench and a wrench or spanner holding the tightening nut C the
stud will be finished or shortened as required.
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. A. hand tool constructed of steel provided with adjustable dies and dogs for
the several purposes of screwing forcing and withdrawing finishing or shortening
screw studs substantially as herein described.
2. In a hand tool a combination of a cutter bar or topping tool provided with a
cutting edge for the purpose of finishing or shortening screw studs or the like
substantially as herein described.
3. In a hand tool an outer case or body of steel internally tapered in combination
with an inner body or dog holder provided with internally sloping holes for carrying
the said dogs or dies for the purposes of screwing, forcing withdrawing and finishing
or shortening screw studs substantially as herein described.
Dated this 3rd day of Senterıber 1891
JAMES BICKLE.