Year: 1888

page_text: of York, in the Province of Ontario, Canada, Stenographer.
I ALFRED JULIUS BOULT, of 323 High Holborn in the County of Middlesex, M.I.M.E.
do hereby declare the nature of the invention to be as follows:-
The object of the invention is to provide means by which a perfect alignment of all
the letters may be secured, no matter how many sheets of paper are placed between
the type and the platen; and it consists, essentially, of an arrangement with the paper-
carriage of a type-writer and a striking-roller or platen supported thereon, of a
support adjustably connected to the carriage so that the striking-roller or platen may
be adjusted vertically to ensure a perfect alignment of the letters.

page_text: A communication from ALEXANDER DOWNEY, of the City of Toronto, in the County of
York, in the Province of Ontario, Canada, Stenographer.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.
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 :-
The object of the invention is to provide means by which a perfect alignment of all
the letters may be secured, no matter how many sheets of paper are placed between
the type and the platen; and it consists, essentially, in connecting the carrying wheel
of the paper carriage in such a manner that the height of the said carriage may be
readily adjusted to suit any variation in the thickness of the paper placed between the
type and the platen.
Fig. 1 is a perspective view of the top of a type-writer provided with this improvement.
Fig. 2 is an enlarged perspective sectional detail showing the manner of connecting
the carrying wheel to the paper-carriage.
Fig. 3 is an enlarged perspective detail of the carrying-wheel with its bearing-boxes
and spindle.
In all type-writers with which my correspondent is familiar the type are carried on
pivotted levers, consequently the platen or striking point must always be at the same
distance from all the pivots of the type-levers to ensure a perfect alignment. As type-
writers are now commonly made the striking roller or platen is carried on a carriage
supported by wheels or rollers resting on guides and supporting the carriage so that
the striking roller or platen shall be the proper distance from the pivot points of the
type-levers to ensure a perfect alignment of the letters when a single copy is being
printed, but no suitable means have, so far as my correspondent knows, been yet
devised by which the striking roller or platen may be elevated when extra sheets of
paper are inserted, consequently the insertion of extra sheets of paper lowers the point
at which the type strike the extra paper destroying the perfect alignment of the letters,
as the type at the back of the case strike higher and the type at the front of the case
lower than the line they are set for. To overcome this fault the carrying-wheel A is
journalled in a cross head B which is fitted into slots made in the front bar C of the
paper carriage and I connect the screwed spindle D by a swivel joint to the cross-
head B the said spindle being screwed through the nut formed in or attached to the
front bar C of the paper-carriage. A head or nut E is connected to the spindle D so
that the said spindle may be revolved for the purpose of raising or lowering the
carriage in order that the striking roller or platen F may be raised or lowered to suit
exactly the thickness of the paper which may be placed between it and the type; a

page_text: jam nut G being used for the purpose of holding the spindle at the point desired;
consequently the striking point may thus be properly kept to ensure a perfect alignment
of all the letters.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is ;-
1. The combination with the paper-carriage of a type-writer and a striking roller or
platen supported thereon of a support adjustably connected to the carriage so that the
striking roller or platen may be adjusted vertically to ensure a perfect alignment of
the letters substantially as specified.
2. The carrying-wheel A journailed in the cross-head B which is fitted into slots
made in the front bar C in combination with a screwed spindle D passing through a
nut formed in or attached to the frame of the paper-carriage substantially as and for
the purpose specified.
1
בT
1000