IMPROVE- MENTS IN TENTS
Year: 1852

page_text: LETTERS PATENT to Robert Lambert, of 13, Goree Piazza, Liver-
pool, in the County of Lancaster, for the Invention of "IMPROVE-
MENTS IN TENTS."
Sealed the 5th January 1853, and dated the 11th October 1852.
PROVISIONAL SPECIFICATION left by the said Robert Lambert
at the Office of the Commissioners of Patents, with his Petition,
on the 11th October 1852.
I, ROBERT LAMBERT, of 18, Gorce Piazza, Liverpool, in the County
of Lancaster, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN TENTS" to be as follows:-
This Invention has for its object the applying means of ventilation to
the upper parts of tents, and also the construction of double tents fo
hot climates, and consists,-First, of constructing the upper parts of a
tent with net or open work for the passage away of air from within,
combined with a cover to close such open work when desired, and also
with a head to throw off' rain, and yet retain the open work for ventila-
tion. Secondly, the Invention consists of combining two tents, each with

page_text: means of ventilation, so that there will be a space between them, by
which the interior tent will be less acted on by the sun than when a
single tout is used
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Robert Lambert in the Great Seal Patent Office,
on the 11th April 1853.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
ROBERT LAMBERT, of 13, Gorec Piazza, Liverpool, in the County of
Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eleventh day of October, in the
year of our Lord One thousand eight hundred and fifty-two, in the six-
teenth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Robert Lambert, Her special licence
that I, the said Robert Lambert, my executors, administrátors, and
assigns, or such others as I, the said Robert Lambert, my executors,
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
TENTS," upon the condition (amongst others) that I, the said Robert
Lambert, by an instrument in writing under my hand and scal, should
jarticularly 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 1, the said Robert Lambert, do hereby
declare the nature of the said Invention, and in what manner the
same 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 the applying means of ventilation to
the upper parts of tents, and Iso the construction of double tents for

page_text: hot climates, and consists;-First, of constructing the upper.parts of a
tent, with net or other work for the passage away of air from within
combined with a cover to close such open work when desired, and also
with a head to throw off rain; and yet retain the open work for ventila-
tion. Secondly, the Invention consists of combining two tents, each
with means of ventilation, so that there will be a space 'between them,
by which the interior tent will be less acted on by the sun than when a
single tent is used. And in order that my said Invention may be most
fully understood, and readily carried into effect, I will proceed to describe
the means pursued by me.
DESCRIPTION OF THE DRAWING.
= }
Figure 1, shows a tent constructed according to my.' Invention;
Figure 2, is a section thereof; Figure 3, is a section on a larger scale
of the ventilating apparatus; Figure 4, is an external view, thereof;
and Figure 5, shows the parts separately. In each of these Figures
the same letters are used to indicate the same parts. a, is the inner
tent, and 6, the outer tent: the two tents are connected at 6', b², c, c,
and also at the top, in such manner as to leave a-space between the
two, hence there will be an air space between them, by which the
interior will be kept more cool. The upper part of the interior tent
may, towards the upper part of the cone, be made of net work in place
of canvass, and such is the case with single tents; but in single tents,
when the upper part of the tent is made of not work, there is to be a
stiff conical cap fixed on the port or upright of the tent, so as to cover
the open part of the tent, and when desired this conical cap may be
closed down on the upper part of the tent. When the is some short
distance from the upper part of the tent it will prevent rain getting into
the tent, and yet offer a means of ventilation; but for double tents I
prefer the means of ventilation shown in the Drawing. d, is the tent
port or central upright, on which is fixed the socket e, to which, by
means of the diagonal supports f, f, the cone g, is fixed, as shown. At
the upper part of the cone g, is fixed the pipe h, to which, by the bars i,
the axis j, of the rotating cap k, is fixed. The rotating cap turns on
the axis j, and it is so constructed as to turn from the wind, as is shown
cap

page_text: in the Drawing, and the lower part &', of the cap is made conical, to
prevent rain getting to the part where the tents are fixed. The pipe h,
is first passed through the inner tent, which fits thereon, and rests on
the cone g; the conical ring 7, is then placed on the pipe h, there being
a projection m, fixed thereon, which prevents the ring l, descending too
low down, and there are holes formed in the pipe h, between the upper
part of the cone g, and the ring 1; but these would not be necessary if a
few inches of the upper part of the inner tent were made with net work.
The pipe, is next passed through the outer tent; the rotating cap is
then placed on its axis; n, is a lamp suspended under the cone g;
by this means very considerable ventilation may be produced.
Having thus described the nature of my Invention, and the manner
of performing the same, I would have it understood that I make no
claim to any of the parts separately. But what I claim is,―
First, the constructing tents with net or open work, combined with a
water-tight cap or cover, as described; and, secondly, I claim the
combination of two tents, and means of ventilating them, hercin
.<lescribed.
In witness whereof, I, the said Robert Lambert, have hereunto
set my hand and seal, this Fifth day of April, in the year
of our Lord One thousand eight hundred and fifty-three.
'Witness,
S. CARIMAEL.
ROBT. LAMBERT. (LS.)