Improvements in Means or Apparatus for use in "Locking Up" Type or Printing Surfaces.
Year: 1892

page_text: Date of Application, 17th Oct., 1892
Complete Specification Left, 17th July, 1893-Accepted, 19th Aug., 1893
PROVISIONAL SPECIFICATION.
Improvements in Means or Apparatus for use in "Locking Up"
Type or Printing Surfaces.
We THOMAS MCCARTER of Shipquay Strect, in the City of Londonderry,
Newspaper Proprietor, and SAMUEL STARRETT of 95 Marlborough Park, in the
aforesaid City, Machinist, do hereby declare the nature of this invention to be as
follows:-
In order to "lock up" or secure types or printing surfaces in chase or otherwise
secure them in adjusted position for obtaining impressions various devices, mostly
consisting of various modifications of the wedge or wedge and lever, have been
employed but as at present employed their use is attended with disadvantages,
which it is the object of the present invention to obviate.
In carrying out our present invention two blocks are employed preferably
counterparts of each other except as to the position they occupy when in use in
pairs for "locking up."
"
or
Each block preferably of iron for strength and economy is formed as a wedge on
one side, the other operating side being intended to lie parallel to the "matter
the chase. The wedge formed side is shaped in mainly two diameters, one portion
being recessed or troughed and the other portion being provided with projecting
teeth, located centrally of the inclined plane surface.
Two such blocks with their parallel surfaces outwardly disposed and their
inclined surfaces approximated with the teeth of the one within the recess of
the other, are then applied between the "matter or type et cetera and the chase,
forming a "quoin and when a suitably formed key is engaged with the teeth of
the two parts and turned on its spindle or axis by a cross or like handle, the two
wedge surfaces are caused to ride on each other " "locking or "unlocking" the
parts to be secured. Lateral disengagement of the parts when locked is prevented
by intersection of the inclined parts, simplicity is secured by the duplication of
the halves and other advantages arise from the described construction.
"
"
the
The handle tee shaped has a rose or cogged end, a chisel or flat tongue end and
a squared block end, each end being designed for use in applying and securing or
releasing, or removing the quoin, the square end to prepare
the
space, cog to
roll the leaves of the double wedge along on each other and the flat tongue to lift
the wedges or for other like uses, or this form of the implement may be modified.
When the parts of the "quoin are placed properly together in position for use
the rose or pinion end of the key can pass through and between the teeth up to a
shoulder or to the desired distance so that slip of the pinion key or jarring of the
quoins is prevented whilst great power can be exercised and the quoin parts so
formed as to withstand it with little wear and tear and yet locking and unlocking
is rendered easy to effect.
1
1
1005

page_text: CODI DELLE SPECIFICATION.
Improvements in Means or Apparatus for use in "Locking Up"
Type or Printing Surfaces.
We, THOMAS MCCARTER of Shipquay Street, in the City of Londonderry,
Newspaper Proprietor, and SAMUEL STARRETT of 95 Marlborough Park in the
aforesaid City, Machinist, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
"
In order to "lock up or secure types or printing surfaces in chase or otherwise
secure them in adjusted position for obtaining impressions various devices, mostly
consisting of various modifications of the wedge or wedge and lever, have been
employed but as at present employed their use is attended with disadvantages,
which it is the object of the present invention to obviate.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 indicates by face view a portion of a "forme," and parts of ordinary
appliances used to hold types or printing surfaces in correct relation with the aid
of the present novel device for carrying out our invention consisting of two
blocks A A which are employed preferably counterparts of each other except as
to the position they occupy when in use in pairs for "locking up" and therefore
a description of one is a description of the other.
Fig. 2 is a section taken at right angles to Fig. I on the line 1-1 and shews
twin blocks or quoins in position inclined face of one towards inclined face of the
other.
Fig. 3 is an inner face view of the quoin shewing the rack and groove and
Fig. 4 an edge view of the same.
Fig. 5 is a side view and Fig. 6 is an end view of a key formed with a rose d,
by means of which to engage the racks c, c and also the cross handle d' is formed
at one end as a screw driver d² for inserting under quoins to facilitate lifting them
out of the "chase" and at the other end as a flat square tapered lump d³ for
inserting between type and chase to bring them into their place before putting in
quoins A A¹
Each block preferably of iron for strength and economy is formed as a wedge
or incline on one side a the other operating side a¹ being intended to lie parallel to
the " matter or the chase e. The wedge or incline formed side a is shaped in
"
mainly two diameters, one portion a² being recessed or troughed and the other
portion a being provided with projecting teeth or racks cc centrally of the
inclined plane surface a.
66
"
Two such blocks A A' with their parallel surfaces outwardly disposed and their
inclined surfaces approximated with the teeth c of the one within the recess a
of the other, are then applied between the "matter
chase e forming a
or type etcetera and the
quoin" and when the rose d of a suitably formed key is
engaged with the teeth of the two parts A A' and turned on its spindle or axis d⭑
by a cross or like handle d', the two wedge surfaces A A' are caused to ride on
each other "locking" or "unlocking" the parts to be secured.
Lateral disengagement of the parts when locked is prevented by intersection of
the inclined parts e and a², simplicity is secured by the duplication of the halves
and other advantages arise from the described construction.
Although we have shewn the handle d¹ tee shaped with a rose or cogged end d 4

page_text: a chisel or flat tongue end d² and a squared block end d³ each end being designed
for use in applying and securing or releasing, or removing the quoin, the square
end to prepare the space, the cog to roll the leaves of the double wedge along on
each other and the flat tongue to lift the wedges or for other like uses this form of
the implement may be modified and the "quoin" operated by any equivalent and
suitable tool.
When the parts of the "quoin" are placed properly together in position for use
the rose or pinion end d of the key can pass through and between the teeth cc up
to a shoulder or to the desired distance so that slip of the pinion key or jarring of
the quoins is prevented whilst great power can be exercised and the quoin parts
so formed as to withstand it with little wear and tear and yet locking and unlocking
is rendered easy to effect.
Fig. 7 shews a face view
sticks and quoins applied to
kind. ffshew side sticks.
without these side-sticks.
of the improved appliances in a forme with the side
lock up the type or other "matter "B of any usual
The improved quoins can of course be used with or
These side-sticks are made of cast malleable or any other suitable metal and are
grooved on two sides (bottom and top) for lightness, are parallel, one side being
prepared to go next the type, the other next the quoins. These being so formed
prevent the forme from springing, and there is no shrinkage, no warping or
splitting as in the case of the wood side sticks used by printers, and they always
remain straight and true, and where formes have to be kept standing for months
at a time are a great advantage, as they always remain the same, not being affected
by weather.
By the one rack on each half quoin or wedge being located centrally of the one
inclined face a central train is attained and the surface reserved at each edge forms
a slide way for the opposed wall of the groove on the opposite half quoin and vice
versa whilst the construction when so applied allows the key a clear way to pass
through from side to side.
We are aware that printers quoins have been used having contiguous counterparts
inclined faces each face having an inclined plane surface rib or feather and a corre-
sponding groove arranged at the head of each half quoin whilst below the surface
of the rib upon both sides thereof are racks but the contiguous ribs prevent the
introduction of the key and the application of the power so effectually as in our
improved construction.
We therefore make no claim broadly to the employment of quoins in twin halves
or pairs having contiguous inclined and rack provided surfaces.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
"
1. The construction and use of a printers quoin consisting of twin parts each
having a pair of operating faces; one face (designed to lie in a plane parallel to
the "matter or side of the chase, side stick or other like filling in appliance)
being formed flat and the other face being formed inclined in two parallel planes
with a series of rack teeth arranged centrally of the one plane and a groove
centrally of the other plane the side surfaces of each of which form inclined slide
ways for the inverted counterpart surface of the twin half of the "quoin" in
combination with a suitable key or tool having a rose or end adapted to be passed
between engaged with and cause movement to the opposed teeth upon the twin
halves of the quoin as and for the purpose hereinbefore set forth.
2. A printers quoin composed of twin halves, each half quoin having two
operating faces one composed of two inclined planes and the other flat one of
each pair of inclined faces being centrally grooved and the other having a central
projecting rack the two halves in use being inverted so that the inclined faces are
all in parallel planes, the rack of one plane lying within the groove of the other

page_text: plane whilst the sides of each inclined plane are in sliding contact with the opposed
sides of the opposite half of the quoin substantially as set forth.
Dated the 14th day of July 1893.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicants.