Printers' Extension-Furniture or Lock Up.
Year: 1899

page_text: Date of Application, 28th Mar., 1899 -Accepted, 20th May, 1899
Printers' Extension-Furniture or Lock Up.
I, WILLIAM GABRIEL SLAUSON, of 218, South Fourth Street, Olean, County of
Cattaraugus, State of New York, U.S.A., Manufacturer, do hereby declare the
nature of my 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 and is specially useful for locking up a small form in
a large chase, but has other uses as printers will recognize.
Referring to the. drawings:
Fig. 1 is a plan, partly broken, of the "lock up" or piece of furniture, in
extended position;
Fig. 2 is a plan of the furniture closed;
Fig. 3 is a broken section of the furniture, showing extension quoin;
Fig. 4 is a partial side elevation and partial central section;
Fig. 5 is a detail elevation of snail;
Fig. 6 is a reduced plan of two pieces of furniture connected by tie bars;
Fig. 7 is a side elevation of one of the pieces of Fig. 6.
The "lock up" has its body mainly composed of sections A, B, of rectangular
metallic tubing. The tube A has a notch 1 near its end, and preferably a
mortise 2, in one edge. The notch 1 permits the insertion of a wrench when the
parts are closed, (see Fig. 2).
The tube B slides or telescopes easily in tube A. Tube B has notches or rack 3
in one edge. A toothed pawl 4 is pressed by spring 5 into the mortise 2 in tube A,
and into engagement with rack 3. Thus when tube B is extended, as in Fig. 1,
the engagement of pawl therewith will hold it extended.
The tube B is preferably open except for the quoin and mechanism to operate
the same, although it may have a wooden core for part of its length.
Near the end of tube B there is a hole, and inside the tube a snail E', which has
a helical worm 16, which worm engages segmental ribs 7 and 8. Ribs 7 are ou a
fixed abutment D, which is secured to the tube B by rivets or otherwise. Ribs 8
are on quoin E, (see Fig. 4).
Snail C has a key seat 10, into which a key may be entered through hole 6
to rotate the snail.
By the engagement of helical rib 16 with segmental ribs 7 and 8, the quoin E
may be projected at the end of tube B, or drawn within such tube, as the snail
is rotated in opposite directions.
For use in locking a form, the tubes A, B, may be extended to approximate the
desired length, and fastened by pawl 4. One end of the extended "lock up" will
usually be in proximity to the form, the other end near the chase. Then by
turning snail C, by means of a wrench or key, the quoin will be projected and the
locking effected. A reverse movement of snail unlocks the quoin.
These locking pieces may be arranged in couples to fill large spaces in a chase
or form. Figures 6 and 7 show how the two furniture pieces A, A, B, B, having
holes 12 therein, may be connected by metallic rods F, F, which neatly fit the
holes but permit adjustment of the furniture along these rods.

page_text: This furniture is specially applicable to such places as usually require a large
quantity of metal or wooden furniture.
Rectangular tubing of ordinary construction is well adapted for use to make the
parts A, B, of this device.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
-
1. A lock up for printers' use consisting of a plurality of rectangular metallic
tubes arranged to telescope, means for holding the tubes in extended position,
and a quoin at the end of one of the tubes and capable of projection therefrom,
substantially as described.
2. An extensible lock up consisting essentially of rectangular metallic tubes
arranged to telescope together, the internal tube having a locking quoin near one
end and a hole by which a wrench may enter, and the outer tube having a notch
in line with said opening.
3. The combination with the telescopic rectangular metallic tubing arranged
substantially as described for printers' furniture, of the rack on one tube section
and the spring pawl on the other tube section, substantially as described.
4. The combination with a rectangular metallic tube for a printers' lock up,
with a quoin partly enclosed within one end thereof; and a suail with helical ribs
engaging segments on the quoin and on an abutment in the tube to project the
quoin.
. "
5. The duplex or multiple arrangement of extensible telescopic tubular furniture,
by means of rods passing through holes in the tubes, whereby the telescopic picces
may be held in parallel position, substantially as described and for the purpose
stated.
Dated this 28th day of March 1899.
S. S. BROMHEAD,
Agent for Applicant, 171, Queen Victoria Street, Loudon, E.C.
S. S. BROMHEAD,
Agent for Applicant, 171, Queen Victoria Street, Loudon, E.C.