es in Type writers.
Year: 1889

page_text: Date of Application, 18th Jan., 1889-Accepted, 23rd Nov., 1889
COMPLETE SPECIFICATION.
es in Type writers.
A Communication from abroad by ADOLPHE EGGIS, of Fribourg, in the Republic
of Switzerland.
I, WILLIAM PHILLIPS THOMPSON, F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both in
the County of Lancaster, and 323, High Holborn in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention and in what mannor the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The type writer which is the object of the present application for Letters Patent is
shown in plan view in Figure 1,Jand in cross section in Figure 2 of the drawings. The
Figures 3, 4, and 5 show on an enlarged scale details of the machine hereinafter
described.
The base A is provided with a slide A¹ along which slides the paper carrier B. Tho
latter is composed of a base 6 having a spacing rack 6 attached to one side thereof
and supporting a cylinder V with paper guides v the latter pressing the paper upon
the cylinder and of a plato d over which the paper passes to receive the impression of
the types. The cylinder V is provided with a notched button for line spacing as
usual in type writers. The plate d is further provided with a scale d' which is
intended to verify at any time in vertical direction the place upon which one is just
printing.
Over the plated there are placed the three principal organs of the type writer:
(1) the plate C with opening c (2) the elastic membrame D carrying on its lower
surface types which are intended to be printed upon the paper (3) the plunger E
which presses one of the types of D through the opening upon the plate d
(Figure 3) inking at the same time the types placed on the right and the left of the
printing one by pressing the same upon the inkers c¹ and c² of the plate C. To avoid
the erasing or smearing of the printed letters when the paper is thrown forward, the
plate C is provided with projecting borders C and C (Figure 4) which prevent the
friction of the printed paper against the under surface of the plate C.
The plate is fixed to the base A. The plunger E is affixed to a frame F hinged
to pillars e supported upon the base A. The plunger E can therefore oscillate
around the point F' (Figure 2) but cannot be displaced laterally and is always placed
over the opening of the plate C. A spring flifts the frame F and its projecting
plunger E after each depression. The elastic membrane D is fixed to a frame Di
which is affixed to a piece G sliding along a rod H; the latter is fixed upon the
base A by the pillars and ³. The sliding piece G bears on its centre a standard g
to the upper part of which is hinged a lever I having a button i. The lever I
engages into the notches of a rack J, the teeth of which correspond to the intervals
between the types of the membrane D, so that when the said lever I is engaged
between two tooth of the rack J and the button i pressed down, the plunger E registers
necessarily with the back of one of the types of membrane D. In front of each notch
of the rack J is placed a letter of the indicator K, fixed to the frame F. Said
indicator K is so placed as to have, for instance, the type representing the letter X
which is carried by the membrane D, placed underneath the plunger E and printed
upon the paper on the table d, when the button i is pressed down after the lever I is
placed upon the letter ✗ of the indicator K. At the same time the types W and Y
carried by the membrane D are inked by the inkers c¹ and c². The membrane D bears
two parallel lines of types, that is to say, one line of capital letters, and signs, and ono
of small letters and accents. In place of two lines of types the membrane D might,
of course, be provided with three or more lines of types.

page_text: In view of having the one or the other line of types placed beneath the plunger E
the frame D is attached to the piece G by means of screws g¹ sliding in slotted holes
in the frame D'.
By sliding the piece G and its lever I one displaces the types of the membrane D
with regard to the plunger E, and the position of lover I upon the indicator K
shows, at any time, the type which is placed underneath the said plunger and there-
fore above the printing point.
The rod L of frame F is provided with a thumb which acts upon the click N by
means of the kneed lever O and connecting rod S.
after
The click N engages into the spacing rack b¹ of the paper carrier B and causes
the paper to advance after each depression of the frame F, that is to say,
each impression of a letter. A special spacing lever P, which bears also upon
the kneed lever O, allows one to advance the paper for the space of one letter without
pressing down the button i.
To prevent the paper advancing more than the space of one tooth of the rack b¹ at
one depression, the click N is attached to a piece Q acted upon by a spring 2, as
shown in Figure 5. The piece Q oscillates around a pivot r, and is provided with a
tooth R engaging into the rack 61 at the very moment the click N arrives at the
end of its course. S is a rod which connects the piece Q and lever O. The disen-
gaging lever T (Figure 1) is connected on one side with the click N, and on the other
side with the tooth Ⓡ by means of the rods s and trespectively, so as to have both
the click N and tooth R at one time disengaged out of the rack 6' by displacing
the lever T when the papor-bearer B is to be inserted in or taken out of the machine
or otherwise.
Having now particularly described and ascertained the nature of the said invention,
and in what manner the same is to be performed, as communicated to mo by my
foreign correspondent, I declare that what I claim is :-
1. In a type writer the paper carrier B, consisting of the combination of plate b,
rack 6 cylinder C, guide c¹ and plate d, substantially as described and shown.
2. The combination of a suitable paper carrier with the plate C having inkers c¹
and c, and having an opening c, the frame D¹ bearing a flexible membrane B provided
with types, the sliding piece & sliding on a rod H and bearing a hinged lever I, the
frame having a rack J and an indicator K, a plunger E and a spring f, substan-
tially as shown and described and for the purpose specified.
3. The combination of the plate C with the projecting borders C and C² preventing
the erasure or smearing of the printed letters by friction of the said plate C, substan-
tially as described.
4. The combination of click N with a piece Q having a tooth R, substantially as
shown and described and for the purposes specified.
5. The combination of the thumb of frame F with the kneed lever O, the rod S
acting upon a piece Q, which has a tooth Rand a click N, substantially as and for the
purpose set forth.
6. The combination of the various parts forming a new type writer, substantially as
and for the purposes set forth.
Dated this 17th day of Januar 1800
set forth.
day of January 1880
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.