Improvements in Flower Pots.
Year: 1899

page_text: Date of Application, 1st Mar., 1899-Accepted, 20th May, 1899
Improvements in Flower Pots.
I, Dr. ALEXANDER ROESELER, of 17, Französischestrasse, Berlin, in the German
Empire, Physician, 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: --
This invention has for its object a double walled flower pot in which the space
between the two walls contains a stagnant layer of air and the bottom of which
is provided with upwardly projecting overflow tubes or pipes. The layer of air
enables the roots of plants, particularly the tender root points, to be protected
from variations in temperature and the earth or mould in the flower pot from
being dried by air currents. The overflow tubes or pipes enable the superfluous
water poured on to the mould in the pot to flow away as soon as a layer of water
collects upon the bottom of the pot to a depth equal to the height of the said
overflow tubes; this layer of water serves, without cutting off the air from
below, as a store supply and is utilized when the pot is inadvertently not watered.
In the accompanying drawings have shewn as an example a flower pot of
the ordinary conical shape although it can be either cylindrical or of any other
desired form in the said drawings:-
Figure 1 is a vertical section through the flower pot; and
Figure 2 is a plan of the pot.
The flower pot consists of the usual pot a of porous material, and of an outer
jacket the upper edge of which is rigidly connected to the upper edge of
the inner pot a by the annular piece e. The parts a, b and c can be manufactured
from the same material and can then be made in one. They can, however, be
made of different materials and rigidly connected together in any suitable
manner.
In the case of larger flower pots metal insertions can advantageously be pro-
vided in the walls in order to increase the durability of the pots.
The jacket 6 and the ring care, when they are made of porous material, glazed
for the purpose of cleanliness. In the case of small pots the lower edge of the
jacket is flush with the bottom d of the pot. The said bottom d and the jacket
in this case are supported upon three or more feet e. which are formed in one
with the bottom d and the jacket b. Overflow tubes f project upwards from the
inside of the bottom d, so that water can collect to the height of these tubes in the
bottom portion of the flower pot which is advantageously filled with sand, coarse
coke, bog moss, or the like. In the case of larger pots the inner pot a can be
divided horizontally at the level of the upper end of the tubes f, the outer jacket b
extending only as far as the division line in order that the pot can be easily taken
apart for facilitating its transport. In this case the parts of the pot are remove-
ably connected with one another and the feet are only arranged under the bottom
thereof.
Air rises through the overflow tubes into the mould contained in the pot so
as to keep the said mould fresh. If desired a hot needle can be passed up through
the said tubes from time to time.

page_text: The stagnant air between the walls a and b forms a so called bad conductor of
heat which protects the plant roots from great heat and cold and from becoming
dried up, in contradistinction to flower pots as ordinarily constructed in which
evaporation always takes place on the outer surface.
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 double walled flower pot wherein the space between the walls contains a
layer of stagnant air and the bottom is provided with upwardly projecting over-
flow tubes, for the purpose of protecting the plant roots from temperature varia-
tions, and the mould in the pot from being dried by air currents, and for, enabling
the lower part of the pot to contain a store of water without preventing, the
access of air to the pot from below, substantially as described:
15.
2. The manufacture and use of flower pots constructed substantially as lierein;
before described and illustrated in the accompanying drawing.
Dated the 1st day of Wat 1000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.