Improvements in or relating to Letter Press Printers' Chases.
Year: 1897

page_text: Date of Application, 13th Apr., 1897
Complete Specification Left 7th Jan 1898 Accented 26th Feb. 1898
PROVISIONAL SPECIFICATION.
Improvements in or relating to Letter Press Printers' Chases.
We, JOHN BROWN ELLIS, of 10, Woodbine Square, Leeds, in the County of York,
Letter Press Printer, and HENRY SANDERSON SPARK, of The City Printing Works,
Cookridge Street, Leeds aforesaid, Letter Press Printer, do hereby declare the
nature of this invention to be as follows:-
This invention relates to improvements in letter press printers chases such as
are used for book work, but it may also be adapted to be used for broad sheet, and
poster work.
The object of this invention is to obtain a more secure mode of "locking-up"
broadside or book forms by means of safety-bars to be applied to ordinary chases
and consists of say on the inner edges of three of the four sides of the chase, or
(where cross bars are used) section of the chase, circular or other shaped holes or
recesses of any suitable size or depth. Into these holes or recesses are passed a
corresponding number of projections or studs formed onto or fixed to say, three
bars, here-after termed "safety chase bars."
The "safety chase bars," are preferably though not necessarily so, made of metal
or of any other suitable material provided at each of their ends with either grooves,
or recesses, or tenons, tongues, or projections so that they will interlock or mesh
together when placed within the chase or section of the chase, along, say, three of
its sides.
The "safety chase bars" are also provided with slot holes or recesses for receiving
the side stick, foot stick and center bar.
The furniture of the chase may be made of metal or any other suitable material
and "locked up," by quoins in the usual and ordinary manner.
Dated this Twelfth day of April 1897
JOHN BROWN ELLIS.
HENRY SANDERSON SPARK.
COMPLETE SPECIFICATION.
Improvements in or relating to Letter Press Printers' Chases.
We, JOHN BROWN ELLIS, of 10, Woodbine Square, Leeds, in the County of York,
Letter Press Printer, and HENRY SANDERSON SPARK, of The City Printing Works,
Cookridge Street, Leeds aforesaid, Letter Press Printer, 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: -
This invention relates to improvements in letter press printers' chases such as
are used for book work, but it may also be adapted to be used for broad sheet, and
noster work

page_text: The object of this invention is to obtain a more secure mode of "locking up"
broadside or book formes by means of safety bars to be applied to ordinary chases
and consists of say on the inner edges of three of the four sides of the chase, or
(where cross bars are used) section of the chase, ciroular or other shaped holes or
recesses of any suitable size or depth. Into these holes or recesses are passed a
corresponding number of projections or studs formed onto or fixed to say, three
bars, hereafter termed "safety chase bars."
The safety chase bars are preferably, though not necessarily so, made of metal
or of any other suitable material provided at each of their ends with either grooves,
or recesses,, or tenons, tongues, or projections so that they will interlock of mesh
together when placed within the chase or section of the chase, along, say, three of
its sides.
The safety chase bars are also provided with slot holes or recesses for receiving
the side stick, foot stick, and centre bar.
In the drawings hereunto annexed:
Fig. 1 is a plan of a chase adapted for book work constructed according to this
invention.
-
Fig. 2 a plan of a chase, adapted for broad sheet and poster work, constructed
according to this invention.
·
Fig. 3 a sectional elevation on line xx Fig. 1.
Fig. 4 a transverse section on line y y Fig. 1.
Fig. 5 a transverse section on line z z Fig. 1.
Fig. 6 a sectional elevation on line v v Fig. 2.
Fig. 7a transverse section on line ww Fig. 2.
Figs. 8, 9, 10, and 11 are respectively enlarged plans and elevations of safety
chase bars shown at Fig. 1.
66
Like parts in all the views are marked with similar letters of reference.
The
A is the chase which is made of metal in the usual manner. In the inner
edges a a¹ a³ of, say, three of the four sides of the chase, as at Fig. 2, or when cross
bars B are used, of, say, three of the four sides of each section of the chase as at
Fig. 1, are provided a number of holes or recesses C hereafter termed recesses.
recesses C may be either circular, rectangular, or of any other suitable shape, and
of any required size and depth. In the drawings circular recesses C are shown,
and they do not entirely pass through the sides of the chase A or of the cross bars B.
Into the recesses C are passed a corresponding number of projections or studs D
formed on or fixed to the bars hereafter termed " safety chase bars." In a ch'ase,
as at Fig. 2, or a chase provided with cross bars, as at Fig. 1, there are three
safety chase bars" E, E¹, E2 for each chase, or section thereof. The "safety
chase bars" may be made of metal, wood, or other suitable material but they are
preferably made of metal, though not necessarily so; and they may be provided with
either tenons F or grooves G,-one or both,- -as shown at Figs. 3 to 11. That is
to say, the two safety bars E', E, placed at each end of, say, the section of chase,
shown at Fig. 1, may be constructed as shown at Figs. 10, and 11 with one straight
end and a groove G at the other end. Whilst the safety chase bar E on the upper
edge of the chase is provided with tenoned ends F which pass into the grooves G
of the safety chase bars E¹ E2 at the ends of the chase. The safety chase bars E¹ E²
are provided with long slot holes H at or near their straight ends, but for the
chase, such as shown at Fig. 2, two, three, or more slot holes may be required;
whilst the safety chase bar E may be provided with any desired number of slot
holes I of the same or varying lengths, or grooves the whole length of the bar may
be substituted for the slot holes. But for the general class of work two slot holes I
will be found sufficient if arranged, say, in the positions shown at Figs. 8 and 9.
J is the side stick, K the foot stick, and L the centre bar, each of which are
respectively provided with tenoned ends j, k, l. The side stick at Fig. 1 is pro-
vided with the slot holes J', and foot stick at Fig. 2 is provided with slot holes K¹.
The safety chase bars, side stick, foot stick, and centre bar or bars are applied
to, say, the section of the chase as follows:

page_text: The projections D.on the safety chase bar E are passed into the recesses C in the
upper inner edge a of the chase. The projections D on the safety chase bars E¹ E'
are passed into recesses C in the inner edges a¹ a² after the grooves G have been
made to engage with the tenons F of the bar E. The tenons jj on the ends of the
side stick J are then passed into the recesses H at the ends of the safety chase
bars E' E, and the tenons k of the foot stick K into the slot holes I and J¹
respectively in the ends of the safety chase bar E and side, stick J. The tenons
of the centre bar L are made to pass into the slot holes I and J¹ respectively at or
about, say, the centre of the safety chase bar E and side stick J.
When the above parts are placed and interlocked in position as described the
side and foot sticks may be locked in position by quoins M of ordinary construction
and in the usual manner.
The chase shown at Fig. 2 for broad sheet and poster work is practically an
enlargement of one of the sections shown in the chase for book work at Fig. 1, in
which provision is made for the use of more than one centre bar.
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. A letter press printers' chase, such as is used for book work, broad sheet, and
poster work armed with safety chase bars having projections adapted to fit into
recesses in three of the inner edges of the chase or section thereof and to interlock
with each other, said safety chase bars being also provided with slot holes for receiv-
ing the tenoned ends respectively of the side and foot sticks and centre bar or bars,
all arranged and combined substantially as herein described and illustrated in the
accompanying drawings.
2. In a letter press printers' chase such as is used for book work, broad sheet,
and poster work, the safety chase bars such as E, E¹, E2, provided with projections,
such as C, slots such as H, I, and tenons or grooves such as F, G, as and for the
purposes described with reference to Figs. 3 to 11 of the accompanying drawings.
Dated this Sixth day of January 1898
JOHN BROWN ELLIS.
HENRY SANDERSON SPARK.