Lock-up Device for Printers' Forms.
Year: 1892

page_text: Date of Application, 30th Apr., 1892
Complete Specification Left, 25th Feb., 1893-Accepted, 25th Mar., 1893
PROVISIONAL SPECIFICATION.
Lock-up Device for Printers' Forms.
We JACOB EDWARD HORNING, of No. 1411 F. Street, N.E. Pressman, and
EDWARD DWIGHT CLAPP, of No. 812 9th Street, N.W. Manufacturer, both of
the City of Washington, District of Columbia, United States of America, do
hereby declare the nature of this invention to be as follows:-
My invention is designed to provide a simple and effective lock-up mechanisms
for printers forms, which will enable the pressman to adjust the form accurately
and to clamp it expeditiously, parts of the mechanism being easily removable to
leave the surface of the bed practically unobstructed for the handling of the forms
in placing or removing them."
My invention consists in dogs moveable in grooves adjacent to the bearers of the
bed and operated and held in said grooves to force a transverse bar or bars with
which the dogs are combined, firmly against the form for holding it or directly'
against the form itself.
The invention also includes other features hereinafter set forth. The bed is pro-
vided with grooves in its upper surface close up to the bearers on each side of the
bed. These grooves are preferably dovetailed and in them are fitted dogs, formed
with dovetails to correspond with the grooves whereby they are retained against
upward displacement. These dogs are operated by screws specially formed as
hereinafter described, and located in the grooves and below the surface of
the bed.
The upper ends of the dogs projecting out of the grooves bear against the trans-
verse bar which in turn presses directly against the form. The transverse bar is
combined with adjustable blocks for holding the forms against lateral displace-
ment. There is a dog at each end of the bar and we prefer to employ two
transverse bars, though only one may be used, each operated by dogs, in which
case the screws may extend from end to end of the bed and be formed with
right and left hand threads so that by turning the screws at one end by a
suitable wrench, the bars will move towards each other and thus clamp the form.
Instead of this arrangement the two bars may be operated independently by
separate pairs of screws.
.
::
The threads of the screw bars do not extend all the way around the bars and
a free space or groove is thus left extending longitudinally and adapted to receive
a projection on the dog. This projection is threaded while the other portion of
the dog about the screw bar is formed plain and without threads. By this con-
struction, the quick adjustment is effected as the screw is turned until the plain.
groove aligns with the threaded projection on the dog and then the dog is easily
slid along the screw by hand until the dog bears on the transverse bar or the form,
as the case may be. The final adjustment and the clamping effect is then secured
by simply giving the screws a partial turn causing the threads of the screws
to engage the threads of the dogs and force the dogs hard against the transverse
bars.
The form may be as readily unlocked by a reverse movement of the screws and
the dogs and as the transverse bars are removed the space of the bed is left
practically free and the form may be removed without liability to pie the form.
It will be seen that the grooves in which the dogs move are close to the bearers
and they are thus specially located and are of such width that should the largest :
size form be used, there will be no danger of the type or furniture falling into
the groove as the chase is of sufficient width to completely cover the grooves.
The bearers thus provide vertical confining walls along the margins of the..
:

page_text: grooves. The screw bars are journalled in plates fixed to the edges of the bed.
The principle of my invention may be carried out by other mechanism in which
the block has lateral wings above the groove, which bear upon the surface of
the bed. along the edges of the groove. It also has lateral wings within the
groove and these incline downward and terminate on each side in teeth which
engage a notched bar or rack. This bar like the screw bar of the first form is
moveable within the groove to secure the final pressure of the clamp blocks on
the chase, but instead of rotating it, slides to secure this action and this movement
is imparted to it by a screw working in the edge of the bed and operated by a
suitable wrench or cross bar.
It will be noticed that the functions of the screw bar and of the rack bar are
similar in that they give the final pressure and act as the holding means when the
clamp block is in place. The block in this instance, like the first, is moveable
independently of its operating and holding bar and may thus be quickly adjusted
to bear upon the chase whether the form be large or small. The block has an
extension and the toothed wings are carried by said extension the ends being
normally slightly above the bar. By tilting the block -the extension acts as a
pivotal point and the teeth are withdrawn from the rack which the block may be
slid quickly along into place and then when released it falls into position with its
teeth engaging the bar and its upper wings bearing on the surface of the bed.
The rack bar is then moved by the screw and the complete clamping effect
secured.
The block in a measure is self locking as under pressure the teeth act as pivots
and the upper wings are jammed hard against the surface of the bed.
Dated this 29th day of April 1892.
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.
COMPLETE SPECIFICATION.
Lock-up Device for Printers' Forms.
We JACOB EDWARD HORNING, Pressman, of No. 1411 F. Street, N.E. and
EDWARD DWIGHT CLAPP, Manufacturer, of No. 812, 9th Street, N.W. both of
the City of Washington, in the District of Columbia, United States of America,
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 and accompanying drawings:
Our invention is designed to provide a simple and effective lock-up, mechanism
for printers' forms which will enable the pressman to adjust the form accurately.
and to clamp it expeditiously, parts of the mechanism being easily removable so as
to leave the surface of the bed practically unobstructed for the handling of the
forms in placing or removing them.
We employ dogs movable in grooves adjacent to the sides of the bed and operated
and held in the said grooves to force and return a transverse bar or bars firmly
against the form so as to clamp the same.
We will describe the invention with reference to the accompanying drawings..
In the said drawings Figure 1 is a perspective view of the bed with the lock-up
mechanism.
Figs. 2 and 3 are detail views of a dog and its operating screw.
Figs. 4 and 5 illustrate a modification.
In the drawings the bed A is provided with grooves in its upper surface close to
the raised edge b on each side of the bed. These grooves are preferably dovetailed
and in them are fitted dogs CC formed with dovetails to correspond with the
grooves whereby they are retained against upward displacement.
These dogs are operated by screws D D specially formed as hereinafter
described and located in the grooves: and below the surface of the bed. The

page_text: upper ends of the dogs projecting out of the grooves bear against the trans-
verse bar E which in turn presses directly against the form when the apparatus
is used.
•
A dog acts upon each end of the bar and we prefer to employ two transverse
bars as shown operated by dogs in which case each of the screws may extend from
end to end of the bed and be formed with right and left hand threads so that by
turning the screws at one end by a suitable wrench the bars will move toward
each other and thus clamp the form. Instead of this arrangement the two bars
may be operated independently by separate pairs of screws or only one bar may
be used. When only one transverse bar is used the opposite side of the chase.
.from that on which the bar is used may bear against any suitable clamp studs or
fixed parts. The threads of the screw bars do not extend all the way around the
bars and a free space or groove 2 is left extending longitudinally and adapted to
receive a projection 2x on the dog. This projection is threaded while the other
portion of the dog about the screw bar is formed plain and without threads. By
this construction a quick adjustment is effected as the screw is turned until the
plain groove aligns with the threaded projection on the dog and then the dog can
be easily slid along the screw by hand until the dog bears on the transverse bar or
the form as the case may be.
The final adjustment, and the clamping effect is then secured by simply giving
the screw a partial turn causing the threads of the screw to engage the threads of
the dog and to force the dog hard against the transverse bar. The form may be as
readily unlocked by a reverse movement of the screws and the dogs and as the
transverse bars are removed the surface of the bed is left practically free and the
form may be removed without liability to "pi" the form.
It will be seen that the grooves in which the dogs move are close to the edge B
so that should the largest size form be used there will be no danger of the type or
furniture falling into the grooves as the chase is of sufficient width to completely
cover the grooves.
The bearers or edges B constitute vertical confining walls along the outer margins
of the grooves and limit or determine the lateral adjustment and position of the
largest sized chase and prevent the type from being at any time above the groove
where they would be liable to fall down into-the same. The screw bars are mounted
in plates fixed to the edges of the bed.
:
In the modification illustrated by Figs. 4 and 5 the dog has lateral wings which
bear upon the surface of the bed along the edges of the grooves.
It has also
lateral wings 10 within the groove and these incline downward and terminate on
each side in a tooth or in teeth which engage a notched bar or rack 11. This har
like the aforesaid screw bar is movable within the groove to secure the final
pressure of the dogs on the chase but instead of rotating it slides to secure this
action and this movement is imparted to it by a screw 12 working in a threaded
hole in the bed and operated by a suitable wrench or "tommy" bar. It will be
noticed that the functions of the screw bar and of the rack bar are similar in that
they give the final pressure and act as the holding means when the dog is in place.
The dog in this instance like the first is movable independently of its operating
and holding bar and may thus be quickly adjusted to bear upon the chase whether
the form be large or small. The dog has a foot 13 which slides in the groove and
the toothed wings are carried by such foot the end 14 being normally slightly
above the bar as shown. By tilting the dog the projecting end 14 acts as a pivot
upon which the dog can turn to withdraw the teeth from the rack and the dog may
then be slid quickly along into place.
When released the dog falls into the position shown with its teeth engaging the
bar and its upper wings bearing on the surface of the bed. The rack bar is then
moved by the screw and the complete clamping effect secured. The dog in a
measure is self locking as under pressure the teeth act as pivots and the upper
wings are jammed hard against and grip the surface of the bed.

page_text: 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 combination the bed formed with parallel grooves the dogs with operating
and holding means in the grooves and the raised edges B substantially as and for
the purpose set forth and indicated.
2) In combination the bed formed with the parallel grooves opening through the
surface of the bed the transverse bar extending between the bearers B over the
surface of the bed and resting upon the same and means in the grooves projecting
therefrom above the bed surface at each end of the bar for forcing it against the
form substantially as set forth and indicated.
3) In combination the bed having the grooves the dogs adjustable in the grooves
by hand and the means for engaging and operating the said dogs when adjusted
substantially as set forth and indicated.
4) In combination the bed formed with grooves each provided with a rock bar
the dogs adapted to engage with such bar and projecting upward above the grooves
such dogs being adjustable along the rack bars substantially as and for the purpose
set forth and indicated.
5) In combination the grooved bed the rock bar in each groove and movable
longitudinally a dog having a tooth to engage said bar and adapted to be dis-
engaged therefrom and operating means for the rack bar substantially as and for
the purpose set forth and indicated.
.6) In combination the grooved bed the rack bar in the groove the dog having an
extension with teeth forward of the rear end thereof whereby the dog may be
tilted and the teeth disengaged from the bar and the lateral wings above the groove
to bear upon the surface of the bed substantially as and for the purpose set forth
and indicated.
Dated thin oath do of — 1000
"
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.