IMPROVEMENTS IN THE CONSTRUCTION OF SAFETY Box SLIDES."
Year: 1867

page_text: LETTERS PATENT to Heinrich Gottlieb Bernhard Röber, of 3, Frankfurter
Strasse, Braunschweig, for the Invention of "IMPROVEMENTS IN THE
CONSTRUCTION OF SAFETY Box SLIDES."
PROVISIONAL SPECIFICATION left by the said Heinrich Gottlieb Bernhard.
Röber at the Office of the Commissioners of Patents, with his Petition,,
on the 20th June 1867.
I, HEINRICH GOTTLIEB BERNHARD ROBER, of 3, Frankfurter Strasse,.
Braunschweig, do hereby declare the nature of the said Invention for “IMPROVE-,
MENTS IN THE CONSTRUCTION OF SAFETY Box SLIDES," to be as follows:-
This Invention has for its object improvements in the construction of safety
box slides, and is applicable especially to letter boxes, money boxes, and other
boxes into which it is required that things should be freely introduced, whilst
the withdrawal of them by the passage through which they are introduced
is provented. Into the top or other part of the box there is fitted a trunk or
passage exceeding in length the articles to be introduced into the box; on
two opposite sides of this passage centres or studs are fixed, on which two
arms are able to turu; at their upper ends these arms carry a cover for the
top of the passage, and the cover has a knob upon it by which it can be
moved about its centres so as to uncover the passage when required, but when

page_text: the knob is released a counterbalance weight at once brings the cover back
over the passage; formed with these parts, and turning on the same centies,
are other arms. carrying a cover for the lower end of the passage, and this is
so placed as to close the bottom of the passage when its upper end is un-
covered, but when the upper cover is over the passage its lower end is left
open. The construction may be modified by mounting an axis at the back
of the passage provided for the letters, money, or other articles, and fixing
the arms with the covers on this axis. In this case a spring is conveniently
substituted for the counterpoise weight.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Ileinrich Gottlieb Bernhard Rober in the Great Seal
Patent Office on the 20th December 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, 1, ПTEINRICH
GOTTLIEB BERNHARD ROBER, of 3, Frankfurter Strasse, Braunschweig, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twentieth day of June, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirty-first year of Her
reign did, for Herself, Her heirs and successors, give and grant unto me, the
said Heinrich Gottlieb Bernhard Rober, Her special licence that I, the said
Heinrich Gottlieb Bernhard Röber, my executors, administrators, and assigns,
or such others as 1, the said Heinrich Gottlieb Bernhard Rober, my execu-
tors, administrators, and assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle of
Man, an Invention for "IMPROVEMENTS IN THE CONSTRUCTION OF SAFETY Box
SLIDES," upon the condition (amongst others) that I, the said Heinrich
Gottlieb Bernhard Rober, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Heinrich Gottlieb Bernhard Rober, do
hereby declare the nature of the said Invention, and in what manner the same

page_text: is to be performed, to be particularly described and ascertained in and by
the following statement thereof, that is to say:-
This Invention has for its object improvements in the construction of safety
box slides, and is applicable especially to letter boxes, money boxes, and other
boxes into which it is required that things should be freely introduced, whilst
the withdrawal of them by the passage through which they are introduced is
prevented. Into the top or other part of the box there is fitted a trunk or
passage exceeding in length the articles to be introduced into the box. On
two opposite sides of this passage centres or studs are fixed, on which two
arms are able to turn. At their upper ends these arms carry a cover for the
top of the passage, and the cover has a knob upon it by which it can be
moved about its centres so as to uncover the passage when required, but when
the knob is released a counterbalance weight at once brings the cover back over
the passage formed with these parts, and turning on the same centres are
other arms carrying a cover for the lower end of the passage, and this is so
placed as to close the bottom of the passage when its upper end is uncovered,
but when the upper cover is over the passage its lower end is left open. The
construction may be modified by mounting an axis at the back of the passage
provided for the letters, money, or other articles, and fixing the arins with the
covers on this axis. In this case a spring is conveniently substituted for the
counterpoise weight.
In order that the Invention may be better understood I have hereunto
attached a Sheet of Drawings in which Figs. 1 and 2 represent a safety slide
for a letter box in section and elevation, and Figs. 3, 4, and 5, a safety slide
for money boxes in cross and longitudinal section and elevation.
The safety slide for a letter box, of which Fig. 1 represents a section, consists
of the trunk a₁, a₁, which in this case is fixed to the top of the box in a vertical
position, but may have any required inclination to it; if, for instance, the
letter box has to be fitted on one side of a door whilst the entrance of the
trunk is required on the other side, the axis a, is fixed behind the trunk a, a,
on which the armb is able to turn, which carries on one side the slide 6₁, and
on the other side the slide b. The spring b, keeps the arm and the slides in
the position as in Fig. 1, which shows the apparatus at rest. As soon as the
slide b, is pushed back in the direction of the arrows 6, the entrance of the
trunk a₁, a₁, becomes open at a, but the slide b, closes at the same time the
outlet of the trunk at a. The letter or other object which is now introduced
rests on slide b, until the apparatus is again at rest, when it drops into
the box underneath, which may be provided with a bag or other receptacle.
The slide b, is provided with projections, as shown in dotted lines in Fig. 2, to

page_text: avoid the sticking of a letter or other objects between it and the fixed side of
the trunk a₁, a₁; these projections do not run over the whole width of the
slide b₂, and form on the bind part a gutter to guide the water or other liquids
introduced in the trunk out without permitting it to come in contact with
the contents of the box, as may be seen in Fig. 1; these projections can be
altered according to the size of the box and objects intended for it.
Figs. 3, 4, and 5 represent a safety slide for money boxes. The same
letters representing the identical parts, as in Figs. 1 and 2. In this case two
arms 6, 6, Fig. 4, are provided, one on each side of the trunk a₁, a₁, which
carry the slides b, and b, in connection with .the counterweight b,, which in
this case takes the place of the spring b, in Fig. 1, all other parts being clear
from the Drawings. A bell or other signal may be brought in combination
with the slides or arms which rings for the time that a letter or money or
other object is introduced, driven by the power of a spring or weight, or an
electrical current.
Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, I wish it to be distinctly
understood that I claim the improvements in safety slides, substantially as
described.
In witness whereof, I, the said Henrich Gottlieb Bernhard Rober, have
hereunto set my hand and seal, this Eighteenth day of December, in
the year of our Lord One thousand eight hundred and sixty-seven.
HEINRICH GOTTLIEB BERNHARD ROBER. (L.S.)