Improvements in Platen Printing Machines.
Year: 1898

page_text: Date of Application, 31st Oct., 1898
Complete Specification Left, 20th Feb., 1899 -Accepted, 22nd Apr., 1899
Improvements in Platen Printing Machines.
We, EDWARD RICKITT, of the Excelsior Works, Hulme Hall Road, Manchester,
in the County of Lancaster, Manager, and JOHN STANLEY, of the same place,
Mechanic, do hereby declare the nature of this invention to be as follows:-
Our invention consists in improvements in platen printing machines and its
object is the provision of simple and convenient appliances which shall prevent
persons attending and working upon such machines from being accidentally
injured in consequence of placing their fingers or hands between the platens and
formes in such machines at inopportune times or being unduly slow in removing
their fingers or hands from between such platens and formes and shall not interfere
with the easy supply to such machines of material to be printed and the removal
therefrom of the material printed upon.
According to our invention we provide upon the connecting-rods which move the
platen of a platen printing machine or upon any other suitable part or parts arranged
to move at the same time as the platen, guard-plates or frames which shall wholly
or substantially cover or be opposite to the space between the platen and the forme
when the platen is away from the forme so that access to such space otherwise
than from the top is precluded. We place between or connect to the frames or
plates aforesaid a cross-bar which when the platen is at the extremity of its move-
ment away from the forme is on the same level as or a little above or below the
upper edge of such platen so as not to interfere with the removal of printed
material therefrom or the supply thereto of material to be printed
but will in the movement of the platen towards the forme be raised
so as to lift the hand of the attendant and prevent his ог her fingers
or hand from being accidentally left between the platen and forme should such
attendant be at any time careless or unduly slow in removing his or her hand
from between the platen and forme. The guard-plates or frames aforesaid are
provided with curved or other projecting plates or appendages which extend
towards and near to the back of the platen when furthest away from the forme
and serve to prevent the attendant or person working upon the machine from
accidentally placing his or her fingers or hand between the platen and the guard-
plates or frames aforesaid so as to be in danger of being injured thereby.
Dated this Twenty-ninth day of October 1898
HOWARD CHEETHAM,
Manchester, Agent to the Applicants.
COMPLETE SPECIFICATION.
Improvements in Platen Printing Machines.
We, EDWARD RICKITT, of the Excelsior Works, Hulme Hall Road, Manchester,
in the County of Lancaster, Manager, and JOHN STANLEY, of the same place,
[Price 8d.1

page_text: Mechanic, 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 consists in improvements in platen printing machines and its
object is the provision of simple and convenient appliances which shall prevent
persons attending and working upon such machines from being accidentally
injured in consequence of placing their fingers or hands between the platens and
formes in such machines at inopportune times or being unduly slow in removing
their fingers or hands from between such platens and formes, and shall not interfere
with the easy supply to such machines of material 'to be printed and the removal
therefrom of the material printed upon.
According to our invention we provide upon the connecting-rods which move the
platen of a platen printing machine or upon any other suitable part or parts arranged
to move at the same time as the platen, guard-plates or frames which shall wholly
or substantially cover or be opposite to the space between the platen and the forme
when the platen is away from the forme so that access to such space otherwise
than from the top is precluded. We place between or connect to the frames or
plates aforesaid a cross-bar which when the platen is at the extremity of its move-
ment away from the forme is on the same level as or a little above or below the
upper edge of such platen so as not to interfere with the removal of printed
material therefrom or the supply thereto of material to be printed
but will in the movement of the platen towards the forme be raised
SO as to lift the hand of the attendant and prevent his or her fingers
or hand from being accidentally left between the platen and forme should such
attendant be at any time careless or, unduly slow in removing his or her hand
from between the platen and forme. The guard-plates or frames aforesaid are
provided with curved or other projecting plates or appendages which extend
towards and near to the back of the platen when furthest away from the forme
and serve to prevent the attendant or person working upon the machine from
accidentally placing his or her fingers or hand between the platen and the guard-
plates or frames aforesaid so as to be in danger of being injured thereby.
In the accompanying drawings, Fig. 1 is a side elevation and Fig. 2 a plan
of so much of a platen-printing machine as is requisite for the illustration of our
invention and the manner of carrying the same into effect. In Figs. 1 and 2,
a is the forme secured upon and the inking slab carried by the framework c
of the machine, d is the platen which is mounted upon arms e arranged to oscillate
about an axis in the framework c of the machine, f f are the connecting rods
which receive motion by means of the toggle-levers gh from a connecting rod i
indicated by dotted lines and receiving motion from a crank carried by a shaft j
driven by means of the main driving shaft k of the machine and is the table or
rest to receive the paper or other material to be printed upon and the material
which has been printed. mm are the guard-plates or frames, n the cross-bar
and oo the curved or other projecting plates or appendages employed according
to our invention. The guard-plates or frames m are secured by means of screws
upon the connecting rods ff and as is clearly indicated in the drawing are of
such size as to wholly or substantially cover or be opposite to the space between
the platen d and the forme a when the platen d is away from the forme a so that
access to such space otherwise than from the top is precluded. The guard-plates
or frames m m illustrated in the accompanying drawing are formed of metal frames
having wire netting secured in them but might be made entirely of sheet metal
or other material which is sufficiently stiff and light. The cross-bar n is secured
in projecting brackets secured upon the guard-plates or frames m m and is
placed in such position that when the platen dis in the position in which it is
indicated in the drawing that is to say moved to the furthest extent of its move-
ment away from the forine a the cross-bar n shall be near to and behind and level
with or a little above or below but preferably a little below the upper edge of the
platen d. The curved or other projecting plates or appendages illustrated in

page_text: Figs. 1 and 2 are secured to the guard-plates or frames m and project towards and
near to the back of the platen d when in the position in which it is indicated
in the drawing. Instead of being secured to the guard-plates or frames m the
curved or other plates or appendages o might be formed as parts of the said guard-
plates or frames m. When the platen d is in or near the position in which it is
indicated in Figs. 1 and 2, the guard-plates or frames m and cross-bar n do not
interfere with the placing of material, to be printed, upon the platen d or the
removal of printed material therefrom, but in all positions of the platen & the
guard-plates or frames m prevent access to the space between the platen d and the
forme e from being obtained except from above and as the platen d is moved
towards the forme the cross-bar n is raised so as to prevent the fingers or hand
or hands of the attendant from being accidentally left between the platen d and
forme a.
The curved or other projecting plates or appendages o prevent the
fingers of an attendant or person working upon the machine from being placed
between the guard-plates or frames m and the platen d so as to be in danger of
being injured thereby. In some cases the curved or other projecting plates or
appendages o may be dispensed with.
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. In a platen printing machine, the combination of guard-plates or frames
mounted upon the connecting rods which move the platen or upon any other
suitable part or parts moving at the same time as the platen, a cross-bar between
such guard-plates or frames and curved or other projecting plates or appendages
on such guard-plates or frames arranged, employed and operating for the purposes
and substantially in the manner herein before described.
2. In a platen printing machine, the combination of guard-plates or frames
mounted upon the connecting rods which move the platen or upon any other
suitable part or parts moving at the same time as the platen and a cross-bar between
such guard-plates or frames arranged, employed and operating for the purposes
and substantially, in the manner hereinbefore described.
Dated this Eighteenth day of February 1899.
HOWARD CHEETHAM,
Manchester, Agent to the Applicants.