A New or Improved Tool, Instrument, or Device for Drawing or Extracting and Driving Screws.
Year: 1894

page_text: Date of Application, 23rd Jul 1894.
Complete Specification Left, 23rd Apr., 1895-Accepted, 24th May, 1895
PROVISIONAL SPECIFICATION
A New or Improved Tool, Instrument, or Device for Drawing or
Extracting and Driving Screws.
I, EDWARD GRIFFITH BREWER of 33 Chancery Lane, in the County of
London, and 30 East Parade, Leeds in the County of York, Chartered Patent
Agent, do hereby declare the nature of this invention (a communication to me from
abroad by Messrs. Solomons. and Bensou of Barberton, South African Republic,
Contractors) to be as follows :-
This invention refers to a new or improved tool, instrument, device, or appliance
for extracting and driving screws particularly adapted for the extraction of
galvanized iron screws from galvanized iron buildings and other places, while it is
also applicable for driving screws all as hereafter described.
Heretofore considerable difficulty has been experienced in extracting screws
especially in the removal of same from galvanized iron buildings by the usual plan
adopted of using the ordinary screw driver only to extract them which often
necessitates a large hole being torn in the iron to enable same to come over the
screw head and thus at once deteriorating the value of the iron, whereas by this
invention this objection is at any rate obviated, while at the. same time a tool is
provided which greatly facilitates the work of extraction without injury to the
material from which the screws are drawn or removed.
According to this invention I make or provide this tool, instrument, or device
with gripping jaws with suitably curved and serrated edges, and immediately
between and under such jaws there is a screw-driver-shaped blade adapted to enter
the slot in the head of the screw, such screws being usually made with "rose" or
hemispherically shaped heads, and by gripping same by the said serrated curved
jaws the blade is forced and held securely in the screw slot.. The pincer jaws are
jointed together and provided with operating handles and the operating. handle
appertaining to the screw-driver-shaped blade may be somewhat longer than the
other or corresponding handle, the long handle and screw blade being in a direct
line one with another.
By opening the jaws and then closing them over the head of the screw to be
extracted the screw-driver blade is caused to enter the slot in the screw head and
the pincers hold it there and thereby produce a double grip on the screw head,
while in the event of the screw head having been damaged the straight leg or long
handle is used for forcing the screw driver point, say by blows of a hammer, well
into the slot of the screw. This tool will also 'extract screws whether bent or
otherwise deformed from the hardest woods. By this invention when the screw is
held as aforesaid and the instrument is turned any screw grasped and held by the
pincers and screw-driving blade can with facility be extracted from the wood and
iron without the slightest damage to the iron which is a great advantage in the
removing of galvanized iron. buildings.
2
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i
By gripping, screw .heads as aforesaid with tools; constructed according to
this invention they can be driven with the utmost facility into the hardest
materials.
•
Dated this 23rd dor of Jul 1801
BREWER & SON,
London and Leeds, Agents.

page_text: COMPLETE SPECIFICATION.
A New or Improved Tool, Instrument, or Device for Drawing or
Extracting and Driving Sorews.
I, EDWARD GRIFFITH BREWER of 33 Chancery Lane, in the County of
London, and 30 East Parade, Leeds, in the County of York, Chartered Patent
Agent, do hereby declare the nature of this invention (a communication to me from
abroad by Messis. Solomons and Benson of Barberton, South African Republic,
Contractors) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
This invention refers to a new or improved tool, instrument, device, or appliance
for extracting and driving screws, particularly adapted for the extraction of
galvanized iron screws from galvanized iron buildings and other places, while it is
also applicable for driving screws all as hereafter described.
Heretofore considerable difficulty has been experienced in extracting screws,
especially in the removal of same from galvanized iron buildings, by the usual
plan adopted of using the ordinary screw driver only, to extract them, which often
proves a failure and necessitates a large hole being torn in the iron to enable
same to come over the screw head, and thus at once deteriorating the value of the
iron, whereas by this invention this objection is at any rate obviated, while at the
same time a tool is provided which greatly facilitates the work of extraction
without injury to the material from which the screws are drawn or removed.
This invention will be readily understood by the following description having
reference to the accompanying drawing,
Figure 1 being a sectional front view of the tool or appliance, shown when
gripping a screw,
Fig. 2 is a similar elevation showing the appliance closed,
Figure 3 is a plan view of the opening in the jaws, and
Figure 4 is an end elevation of the appliance shown at Figure 2.
Similar letters of reference refer to like parts in the several figures of the
drawing.
"
According to this invention I make or provide the tool, instrument, or device,
with gripping jaws A A', having suitably curved edges A2 as shown at Figure 3,
the edges being also serrated or grooved as at Figure 1, in order to grip onto and
secure the edges of the screw head, to which the jaws are shown applied at the
aforesaid Figure 1. Immediately between and under such jaws A A' there is a
screw-driver-shaped blade B, adapted to enter the slot in the head of the screw,
such screws being usually made with "rose or hemispherically shaped heads, and
by gripping same by the said serrated curved jaws, the blade is forced and held
securely in the screw slot. The pincer jaws are jointed together and provided with
operating handles, and the operating handle appertaining to the screw-driver-
shaped blade may be somewhat longer than the other or corresponding handle, the
long handle and screw blade being in a direct line one with another. By opening
the jaws and then closing them over the head of the screw to be extracted, the
screw-driver-blade is caused to enter the slot in the screw head, and the pincers
hold it there and thereby produce a double grip on the screw head, while in the
event of the screw head having been damaged, the straight leg or long handle is
used for forcing the screw driver point, say, by blows of a hammer, well into the
slot of the screw. This tool will also extract screws whether bent or otherwise
deformed from the hardest woods. By this invention when the screw is held as
aforesaid and the instrument is turned, any screw grasped and held by the pincers
and screw driving blade, can with facility be extracted from the wood and iron
without the slightest damage to the iron, which is a great advantage in the removing
of galvanized iron buildings.

page_text: By gripping screw heads as aforesaid with tools constructed according to
this invention, they can be driven with the utmost facility into the hardest
materials.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The new or improved tool, instrument, or device, for drawing or extracting
and driving screws, essentially composed of two jointed members, having gripping
jaws formed with curved edges, and serrated or grooved to embrace and grip the
edges of the screw head, and a screw-driver-shaped blade located between and under
the jaws and carried by or formed with one of the said jointed members, the
blade being adapted to take into the slot of the screw and to be retained in position
by the jaws gripping the screw edges, all substantially as set forth.
2. The general arrangement, construction and combination of parts composing
the new or improved tool, instrument, or device, for drawing or extracting, and
driving screws, all substantially as and for the purposes hereinbefore described
with reference to the accompanying drawings.
Dated this 23rd day of April 1895
BREWER & SON,
London and Leeds, Agents.