PRINTING NAMES OF SUBSCRIBERS ON NEWSPAPERS AND OTHER PERIODICALS, AND OTHER PRINTING PURPOSES, KNOWN OR CALLED CAMPBELL'S ADDRESSING MACHINE
Year: 1867

page_text: PROVISIONAL SPECIFICATION left by Conrad Van Dusen at the Office of
the Commissioners of Patents, with his Petition, on the 4th February
1867. A communication from abroad by James Alexander Campbell,
of the Town of Whitby, Canada West, North America, Printer.
I, CONRAD VAN DUSEN, of the City of London, Minister of the Gospel, do
hereby declare the nature of the said Invention for "PRINTING NAMES OF
SUBSCRIBERS ON NEWSPAPERS AND OTHER PERIODICALS, AND OTHER PRINTING
PURPOSES, KNOWN OR CALLED CAMPBELL'S ADDRESSING MACHINE,'" to be as
follows:-
A, A, represents two horizontal bars resting at each end on B, B, two short
sills; C represents a sliding bed piece which passes in grooves between the
horizontal bars A, A; D is an upright post attached to the front of the sliding.
bed piece C with an arm extending and the top part curved; E is the handle
of the machine, one end entering in post D at the commencement of the
curve; Fis a shaft passing through the curved end and arm of post D, and
also through E, the handle of the machine; G is a spiral spring surrounding
shaft to aid in raising the handle E; H is a small stamp used as a platen to
press the paper (to be addressed) down on the type to receive the impression;
I is a small stud attached to the handle of the machine with a screw; J is a
flat bar connecting the stud I with a leaver; K is the leaver, the small end of
which is attached to said bar J; L is a small wheel through which an axel-tree
surrounded by a spiral spring passes from post D; M is a triangle gripe with
two feet pressing up agains the bottom of wheel L, and the upper part

page_text: attached to the front of leaver K, by which means the point of the front end
of the leaver is brought down on wheel L; N is a small spiral spring, one
end of which is attached to the upright part of post D, and the other end to
a small bar at the foot of the triangle gripe M; O is a larger wheel at the
end of the axel-tree passing from post D through wheel L; P is a rack
attached to one of the horizontal bars which connects with the cogs of
wheel O, by which means the sliding bed piece C is moved forward when the
handle of the machine is raised; Q represents a shield attached to the sliding
bed piece C, used as a frisket in printing, an orifice in which exposes the
name in type to be printed.
To use this machine the names to be printed are set up in type and locked
in a chase and laid on a table, or any other smoothe surface, and the form
inked with a hand roller, then the machine is placed over the form in such a
way that the stamp is directly over the name in type first to be printed; then
by placing a paper over the name in type and pressing down with the handle
the desired impression is made, and then by raising the handle of the machine,
the bed piece moves to the next name. to be printed, and so on till the work
is completed.
Now what claim as a new Invention and for which I desire to obtain
Letters Patent is, the horizontal bars and short sills, the sliding bed piece, with
the upright post, the shaft, spiral springs, handle, flat bar, leaver, and triangle
gripe, with all their combinations, together with the wheels and rack for the
purposes herein set forth; nor do I wish to be confined to the use of the rack,.
but claim the right to use a cord instead thereof when it may be desirable; nor
do I wish to be confined to any particular size of the machine or purposes, to
which it may be applied in printing.