Year: 1886

page_text: Date of Application, 7th Apr., 1886.
Complete Left, 7th Feb., 1887.
Complete Accepted, 25th Feb., 1887.
RESER
[Communicated from abroad by ROBERT W. PEACH, of 39, Dey Street, New York, in
the United States of America, Mereliant.]
I, PHINEAS LAWRENCE, trading as Lawrence Brothers, of 48 Farringdon Street,
in the City of London, Merchants, do hereby declare the nature of this invention to be
as follows:
This Invention relates to an.improved quoin for printers' use, whereby I am enabled
to obtain a large bearing surface, which is always constant, and the liability to shift,
during the action of locking up, is avoided.
According to this Invention, the quoin consists essentially of three portions or
pieces, the two outer of which are inclined, on their inner surfaces, in the direction of
their length, while the third, or middle piece, is formed as a wedge, and is capable of
working between them, as hereinafter mentioned. The inner surfaces of these inclines
are grooved longitudinally, and the wedge or middle piece, which is of slightly less
depth than the side pieces, is tongued on each of its sides, and works in said grooves, the
object being to prevent this wedge piece from coming into contact with the imposing
stone, or other surface, when it is advanced to lock up the form. This wedge or
middle piece is slotted, for nearly its whole length, and works over and along a loosely
fitting pin placed transversely in relation to the three component parts of the quoin,
and having a head at each extremity which is retained in a countersunk hole in each
of the side pieces, thereby allowing the wedge to travel between these side pieces and
causing them to press firmly and securely against the chase on the one side, and the
furniture, type or printing block on the other. This double-headed pin also prevents
the pieces composing the quoin from becoming disconnected. The upper face of the
middle piece or wedge is provided with teeth, and the upper face of one of the outer
pieces has notches formed in it. These notches form fulcra for a suitable key which,
acting on the teeth of the middle or wedge piece, causes this piece to travel forwards
and thrust apart the side pieces thus securely effecting the locking without reducing
or moving longitudinally the bearing surfaces. The face of the opposite or other side
piece formed with seginental recesses to permit of the free working of the key.

page_text: I, PHINEAS LAWRENCE, trading as Lawrence Brothers, of 48 Farringdon Street, in
the City of London, Merchants, 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, reference being had to the accompanying
drawings, and to the letters and figures marked thereon, that is to say :-
This Invention relates to an improved quoin.for printers' use, whereby I am enabled
to obtain large bearing surfaces which are always constant, and the liability to shift;
during the action of "locking up," is avoided.
According to this Invention, the quoin consists essentially of three portions or pieces,
the two outer of which are inclined on their inner faces, in the direction of their length,
while the third, or middle piece, is formed as a wedge, and is capable of working
between them, as hereinafter mentioned. The inner faces of these inclines are grooved
longitudinally, and the wedge or middle piece, which is of slightly less depth than the
side pieces, is tongued on each of its sides, and works in said grooves, the object being
to prevent this wedge piece from coming into contact with the composing stone, or
other surface, when it is advanced to lock up the "forme." This wedge or middle
piece is slotted, for nearly its whole length, and works over and along a loosely fitting
pin placed transversely in relation to the three component parts of the quoin, and
having a head at each extremity which is retained in a countersunk hole, in each of the
side pieces, thereby allowing the wedge to travel between these side pieces and
causing them to press firmly and securely against the chase on the one side, and the
furniture, type or printing block, on the other. This double-headed pin also prevents
the pieces composing the quoin from becoming disconnected.
The upper face of the middle piece or wedge is provided with teeth, and the upper
face of one of the outer pieces has notches formed in it. These notches form fulcra for
a suitable key which, acting on the teeth of the middle or wedge piece, causes this
piece to travel forwards and thrust apart the side pieces, thus securely effecting the
locking without reducing or moving longitudinally the outer bearing surfaces. The
face of the opposite or other side piece is formed with segmental paths or recesses to
permit of the free working of the key.
And in order that the Invention may be clearly understood, I proceed to describe
the same with reference to the accompanying drawings in which:
Fig. 1 is an elevation, shewing the inner face of one of the outer or side pieces of
my improved quoin, and Fig. 2, an end view of the same. Fig. 3 is an elevation
of the middle piece or wedge, and Fig. 4 an end view thereof. Figs. 5 and 6 are
respectively an elevation, and an end view, of the other outer or side piece, the elevation
shewing the outer face thereof. Fig. 7 is a plan showing the two outer or side pieces
and the wedge piece combined, and before the said wedge or middle piece has been
impelled forward to its full limit by the key, the full backward limit being shewn in

page_text: dotted lines. Fig. S is also a plan, but shewing the wedge piece in the position it
would occupy after it has been impelled forward, to its further extent, by the key, and
the side pieces thrust apart. Fig. 9 is an elevation of Fig. 8, and Fig. 10 a cross
section taken on the line y, y of Fig. 8, and line, z, of Fig. 9. Fig. 11 is a view of
the key.
My improved quoin consists essentially of three pieces, namely, two outer or side
pieces A A¹, and a middle piece B formed as a wedge. The side pieces A A¹ are
inclined or tapered on their inner face in the direction of their length. In each of
the side pieces A A', is a longitudinal groove a, of V, or other suitable shape,
extending the whole length thereof. The middle piece or wedge B, is provided on each
of its sides with a tongue or rib b, corresponding to each of the grooves a in the
side pieces, and by means of which, the middle piece or wedge is capable of sliding;
when actuated by the key.
This middle piece or wedge is provided with a slot c, and travels loosely over and
along a rectangular or square pind, the heads of which are retained in the countersunk
holes e, in each of the side pieces.
The pin d is of sufficient length to permit of the lateral expansion of the side pieces
when these are forced outwards by the travel of the middle piece or wedge, the side
pieces always maintaining their parallelism in the chase during such travel of the
wedge.
The middle piece or wedge B, is serrated, or furnished with teeth g, on its upper
edge, and the side piece A¹ with notches h, which, together with the teeth g, serve as
fulcra for the key when operating the quoin, for the purpose of locking up the type.
The side piece A has segmental paths i, formed in it, fo allow clearance for the key to
turn or pass freely.
Having now described the nature of the said Invention, and in what manner the
same is to be performed, I declare that I claim:
The improved construction of quoin, substantially as herein described and shewn in
the drawings, in which a central wedge-shaped piece is caused, in its travel between
two outer or side pieces, to expand or thrust apart these outer pieces laterally, and
thereby effect the locking of the type in the chase, while obtaining for such quoin,
large bearing surfaces which are always constant, the said three pieces being loosely
held together by a square pin, as described.