Improvements in Squares, Mitres, and Bevels.
Year: 1893

page_text: Date of Application, 17th Oct., 1893
Complete Specification Left, 9th Dec., 1893-Accepted, 13th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in Squares, Mitres, and Bevels.
I, ALFRED WALLINGTON FIELD of Station Road Chertsey Gentleman, do
hereby declare the nature of this invention to be as follows:-
My invention relates to a combination tool and has for its object to provide a
tool that shall be capable of fulfilling all the purposes of an ordinary try square,
mitre square, and bevel.
In carrying my invention into practice, I provide a straight edge, in the centre
of which is pivoted a blade, formed in two parts and joined together by means of
screws for tightening in a similar manner to an ordinary bevel.
Integrally with the straight edge is formed a slotted semi-circle passing through
the blade or arm and furnished with any suitable number of marks or degrees so
that the said blade or arm can be turned in either direction, and to any desired
angle, and secured in that position by means of the screws, thus serving the purpose
of an ordinary try square when adjusted at an angle of 90 degrees, that of an
ordinary mitre square when adjusted at an angle of 45 degrees, as well as the
general purposes of a bevel.
In cases where the tool is more likely to be required as a try square, the semi-
'circle could be replaced by a quadrant extending only to the right angle, so that
by pushing the blade back to its fullest extent the tool could be at once adjusted
as a try square.
This tool will be found particularly useful to wood-workers and mechanics
generally owing to its convenient and portable form, while as it is possessed of
special advantages it will be found particularly useful for such work as roofing and
the like.
COMPLETE SPECIFICATION.
Improvements in Squares, Mitres, and Bevels.
ALFRED WALLINGTON FIELD, of Station Road, Chertsey, Gentleman, 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 a combination tool and has for its object to provide a
tool that shall be capable of fulfilling all the purposes of an ordinary try square,
mitre square, and bevel.
In carrying my invention into practice, I provide a straight edge, in the centre
of which is pivoted a blade formed in two parts and joined together by means of
screws for tightening in a similar manner to an ordinary bevel.
Integrally with the straight edge is formed a slotted semi-circle passing through
the blade or arm and furnished with any number of suitable marks or degrees so
that the said blade or arm can be turned in either direction, and to any desired

page_text: angle, and secured in that position by means of screws, thus serving the purpose of
an ordinary try square when adjusted at an angle of 90 degrees, that of an ordinary
mitre square when adjusted at an angle of 45 degrees as well as the general purposes
of a bevel.
In cases where the tool is more likely to be required as a try square, the semi-
circle could be replaced by a quadrant extending only to the right angle, so that
by pushing the blade back to its fullest extent, the tool could be at once adjusted
as a try square.
"
This tool will be found particularly useful to wood-workers and mechanics
generally, owing to its convenient and portable form, while as it is possessed of
special advantages it will be found especially useful for such. work as roofing and
the like.
! In order that my invention may be more fully understood, I will now proceed to
describe same with reference to the accompanying drawings in which
Eig. 1 is a plan of my improved combination tool,
Fig. 2 is a central section through the blade of same, and
Fig. 3 is a plan of a tool of slightly different form.
My improved tool consists of a straight edges and the slotted semi-circular
piece formed integrally with the said straight edge, the, whole being for preference
stamped out of one piece of metal. In the centre of the straight edges is pivoted
the blade formed of two pieces of wood to 10' faced on either side with brass or
¡other suitable material
J.
The blade is secured to the straight edge by an attachment consisting of a hollow
screw a passing through the blade and straight edge and prevented from being
withdrawn by the screw d which is screwed into same and which can be tightened
to fix the blade at. any desired angle or loosened to allow the blade to move freely,
a second screw of similar form is passed through the blade and through the slot
in the semi-circular piece c for more firmly holding the blade at any desired
angle.
The blade b which can be moved to and fro and fixed in any desired position
serves the purposes of an ordinary bevel, try square, or mitre square, but for
'persons who require to more frequently use the tool as a try square, I provide the
form shown in Fig. 3 in which the quadrant q extends to the right angle only, so
that by pushing the blade b back to its fullest extent and fixing same in that
position, the tool is at once adjusted as a try square.
The semi-circular piece c and the quadrant 7 are furnished with any required
.number of marks or degrees to suit various classes of work.
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 :-
The new or improved combination tool, arranged, constructed, and operated,
substantially as herein described and shown in the accompanying drawings.
Dated this.9th day of December 1893.
F. G. CASSELL,
Of Cassell & Co.,
22, Glasshouse Street, Regent Street, London, W.,
Agent for the Applicant..