An Improved Gum-damper for Envelopes, Wrappers, and other such Articles.
Year: 1890

page_text: Date of Application, 12th Feb., 1890
Complete Specification Left, 12th Nov., 1890-Accepted, 3rd Jan., 1891
PROVISIONAL SPECIFICATION.
An Improved Gum-damper for Envelopes, Wrappers, and other
such Articles.
I, FRANK BARTLEET of 25 Claremont Road Sparkbrook in the County of Warwick
Secretary do hereby declare the nature of my said invention & in what manner the
same is to be performed to be particularly described & ascertained in & by the
following statement :-
.
My invention has for its object an improved gum damper for envelopes wrappers &
other such articles by which I not only obviate the necessity of using the tongue
when damping the flap of the envelope wrapper or other article but I provide an office
requisite which is at the same time portable & effective & is capable of being made in
a very cheap form.
My invention consists of a glass china metal or other reservoir formed to contain
water & made in shape so as to stand by itself with the mouth at the top & at the same
time allow of being conveniently held in the hand and within the mouth of this
reservoir I fix a pierced or perforated stopper formed of any suitable material & which
may form a part of or be screwed or forced therein in a similar manner to an ordinary
cork I then cover this stopper with a cap of cloth felt or other such suitable material
in such a manner that it is stretched tight over the mouth of the said reservoir this
being effected in any convenient way as for instance by attaching an india rubber
ring to the cloth or felt or the cap which would be sprung over the neck & may he
made to fit in a recess formed in the reservoir to receive it. It will thus be seen that
to damp the gum of envelopes wrappers or other such articles it is only necessary to
take the damper in hand insert the mouth downwards which causes the water to pass
down the aperture or perforation in the stopper to the inside of the cloth felt or other
suitable cap through which it percolates more or less according to the thickness of the
said felt cloth or other cap & thereby damping the gum paper or other material as it
is rubbed or drawn across the said perforations required to be damped.
I may fix the cap & stopper permanently at one end of the reservoir & provide a
separate inlet for the water at the other end or in any convenient part of the reservoir
so that the cap would not require to be disturbed for refilling & the cap & stopper
may be fitted or secured to the reservoir in any convenient manner.
The stopper may be formed somewhat in the shape of the one end of an egg but
more pointed with apertures at the sides running from the main water passage & a
groove or grooves across or round to allow of the free flow of the water behind the
cloth felt or other cap by which means the most convenient portion of the cap would
be used for damping.
.
I may provide a second cap of metal for placing over the porous cap for the
purpose of allowing the damper to be placed in the pocket or to lie in a drawer, The
stopper & cloth or other cap may be made complete in one piece which would be
provided with a ring of cork round the stem which would fit in the neck of the
reservoir in a similar manner to an ordinary cork.
It will therefore be seen that my invention provides a cheap portable & efficient
office requisite which in comparison with most of the damping pads now in vogue for
this purpose does not require replenishing nearly so often & which in case of becoming
clogged with gum can be easily cleared from same if desired by pressing the soft cap
with the fingers upon which the gum crankles off but the water coming from behind
very quickly acts upon the gum in which case the damper would be of use to a
certain extent while in operation for repairing portions which may be insufficiently
gummed.
3000

page_text: COMPLETE SPECIFICATION.
An Improved Gum-damper for Envelopes, Wrappers, and other
such Articles.
I, FRANK BARTLEET of 25 Claremont Road Sparkbrook in the County of Warwick
Secretary, 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 :-
My invention has for its object an improved gum damper for envelopes wrappers
and other such articles by which I not only obviate the necessity of using the tongue
when damping the flap of the envelope, wrapper or other such article but I provide an
office requisite which is at the same time portable and effective and is capable of being
made in a very cheap form.
My invention consists of a glass china metal or other reservoir formed to contain
water and made in shape so as to stand by itself with the mouth at the top and at the
same time allow of being conveniently held in the hand. Within the mouth of this
reservoir I fix a pierced or perforated stopper formed of any suitable material and
which may form a part of or be screwed or forced therein in a similar manner to an
ordinary cork I then cover this stopper with a cap of cloth felt or other such suitable
material in such a manner that it is stretched tight over the mouth of the said
reservoir this being effected in any convenient way for instance by attaching an india
rubber ring to the cloth or felt or other cap which would be sprung over the neck and
may be made to fit in a recess formed in the reservoir to receive it.
It will thus be seen that to damp the gum of envelopes wrappers or other such
articles it is only necessary to take the damper in hand invert the mouth downwards
which causes the water to pass down the aperture or perforation in the stopper to the
inside of the cloth felt or other suitable cap through which it percolates more or less
according to the thickness of the said felt cloth or other cap and thereby damping the
gum paper or other material as it is rubbed or drawn across the said portions required
to be damped.
I may fix the cap & stopper permanently at one end of the reservoir and provide a
separate inlet for the water at the other end or in any convenient part of the reservoir
so that the cap would not require to be disturbed for refilling & the cap and stopper
may fitted or secured to the reservoir in any convenient manner.
The stopper may be formed somewhat in the shape of one end of an egg with
apertures at the sides running from the main water passage and a groove round to
allow of the free flow of the water behind the cloth felt or other cap by which means
the most convenient portion of the cap would be in use for damping.
I may provide a second cap of inetal for placing over the porous cap for the
purpose of allowing the damper to be placed in the pocket or to lie in a drawer.
The stopper and cloth or other cap may be made complete in one piece which would
be provided with a ring of cork around the stem which would fit in the neck of the
reservoir in a similar manner to an ordinary cork.
It will therefore be seen that my invention provides a cheap portable and efficient
office requisite which in comparison with most of the damping pads now in vogue for
this purpose does not require replenishing nearly so often & which in case of becoming
clogged with gum can be easily cleared from same if desired by pressing the soft cap
with the fingers upon which the gum crumbles off but the water coming from behind
very quickly acts upon the gum in which case the damper would be of use to a
certain extent while in operation for repairing portions which may be insufficiently
gummed.
In order that my invention may be clearly understood & more easily carried into
practice I have appended hereunto a large sized sheet of drawings upon which I have
fully illustrated the nature of my invention.
Figure 1 is a general view of the exterior of one of my gum pads,
Figure 2 is a vertical section through same.

page_text: Figure 3 is a plan of the cap with the coverings removed.
Figure 4 is a small sketch shewing the mode of using the damper upon ordinary
envelopes.
Figure 5 is an elevation of the head with the covering removed shewing a
modification in the shape of the head.
My invention consists of the reservoir A for containing the water or other liquid
having the neck a' into which the stem 62 of the stopper B fits with the intermediate
necking of cork, india rubber or other suitable material. The head B is provided
with the main water passage b' from which converges a series of other water passages
and the whole of which is covered with the cloth felt or other suitable covering D
secured to the head by the rubber or other band d' which fits in the groove 6º.
64
The shape of the head may be varied considerably for instance as shewn by
Figure 5 where a connecting groove 6 is also formed between the various outlets
behind the covering.
I do not confine myself to the exact details as I may considerably modify them
without departing from the nature of my said invention.
Having now particularly described & ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is :-
An improved gum damper for envelopes wrappers and other such articles by which
the liquid is supplied automatically & in the required quantity substantially as & for
the purpose herein set forth and shewn upon the drawings.
Dated this 11th day of November 1800
FRANK BARTLEET.