Year: 1895

page_text: Date of Application, 20th July, 1895-Accepted, 31st Aug.,
1895
We, ENRI MARIANI, and DAVID BALA, both of 36 Northampton Road,
Farringdon Road, in the County of London, Engineers, 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 :-
Our invention has for its object to combine in a single tool or instrument all the
principal measuring, gauging and testing tools ordinarily employed by mechanics.
This tool consists essentially of an oblong frame provided at one end with a
socket in which the end of a rule or straight edge may be secured at right angles
to the length thereof, and at its opposite end with an adjustable clamp capable of
holding either the straight edge or a scriber of ordinary form in practically any
position required.
At the middle of this frame is a level and above this is formed a V-shaped
recess. Communicating with this recess is a slot, provided with a sliding cover
and extending from the centre of said frame nearly to one end thereof. In this
slot is mounted a socket for the end of the rule or straight edge above referred to,
said socket being made adjustable and provided with a scale, so that the straight
edge may be set at any angle required.
A tool constructed according to our invention is illustrated in the accompanying
drawings, and we will now proceed to more fully describe the same by the aid of
these drawings:-
-
Figures 1 and 2 are front views of the tool, Figure 3 a back view, and Figures 4,
5, 6, and 7 top and bottom and end views thereof.
The tool is formed of a oblong frame a of metal or other suitably hard material
having its top, bottom and two ends planed, milled, or otherwise rendered smooth
and level.
In one end of this frame a slot or socket is formed for the reception of the
slotted end of a straight edge or rule b, said rule or straight edge being held in
the position shown in Fig. 3 by a bridge piece e engaging with the slot in the end
of it.
In a slot at the opposite end of the block a an adjustable clamp d is mounted to
revolve on a pin or screw e sliding in a slot f, and the clamp is provided with a
thumb screw g sliding in a curved and straight slots h, h¹ by means of which it may
be closed and held in the required position. This clamp is intended primarily for
holding the straight edge b at any required angle, as shown in full line Fig. 2, or in
the position as shown in dotted lines Fig. 2, so that its bevelled end will form with
the top of the frame a gauge for hexagonals, or so that it will lie parallel with the
top of the block and permit of the tool being used for marking out keyways and
the like on circular bodies, by placing it in such a position that both the edge of
the frame and that of the straight edge rest against said body.
Said clamp may also be used for holding a scriber permitting of the whole being
used as a scribing block.
At the centre of the block a a spirit level is arranged in a recess / and above
this, in the top of the frame, is formed a V-shaped recess m. Communicating with
this V-shaped recess is a slot n (Fig. 5) capable of being partly covered by a
slide o and provided with a bridge piece p, turning on a pin p¹ with which the
slotted end of the straight edge b may be brought to engage, as with that in the slot
in the one end of the frame.

page_text: When placed in position to engage with this bridge piece. p the slotted end of
the straight edge also engages with a socket attached to said pin and carrying a
screw arranged to slide in a curved slot in the frame a. This slot has a scale
marked on one side of it and along this travels a pius attached to the socket and
projecting through a second curved slot t. By means of the screw q and the scale,
therefore, the straight edge may be arranged to make an angle with the upper
surface of the frame and the sliding plate o, which when pulled out forms an
extension of the upper surface of the frame and is held in any required position by
a loop o¹ attached to its underside and pressed upon by a lug o² attached to a flat
spring. When required the rule may be held in the position shown in Fig. 1
forming the whole into a T-square and permitting the V recess being used for
centering the ends of rods or spindles of circular section.
Having now particularly. described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
(1.) In a combination tool or instrument the combination on a frame a of a
socket at one end, an adjustable clamp at the opposite end, a spirit level, V recess,
and an adjustable socket at or near the middle, and a sliding plate arranged to
partly cover the recess in which the adjustable socket is arranged, substantially as
and for the purposes described.
(2.) In a combination tool a sliding plate, substantially as and for the purpose
described.
(3.) In a combination tool an adjustable clamp, constructed, arranged and
operated substantially as and for the purpose described.
Dated this 19th day of July 1895.
ENRI MARIANI.
DAVID BALA.