Improvements in Apparatus Applicable for Use as Retort Stands, Filtering Stands, or the like for Chemical, Pharmaceutical, and Household or other Purposes
Year: 1888

page_text: Improvements in Apparatus Applicable for Use as Retort Stands,
Filtering Stands, or the like for Chemical, Pharmaceutical, and
Household or other Purposes,
I, FREDERICK DANIEL DELF, of 50 Westgate, Dewsbury, in the County of York,
Manufacturing Chemist, do hereby declare the nature of this invention to be as
follows:
This invention has for its object a retort stand, filtering stand, or in fact a
supporting stand generally for use in chemical manipulations.
I form a tripod of a ring of stout iron in which three legs, preferably vertical, are
screwed or otherwise fixed.
These legs are tubular and have a solid rod fitting the interior of the tube which
rod is held in place by set. screws passing through the said tube and through collars
thereon. By this means when the legs require to be lengthened the bars can be
pulled out and again fixed by the set screws. Other forms of telescopic legs can,
however, be used.
The solid iron ring can be provided with a series of other rings fitted into the same,
and having each of them a flange slightly extending over the surface of the outer
ring. By this means the central hole can be lessened to any desired extent, or in
place of having several rings one fitting into another, change rings of different
internal diameters can be used, or change rings with three projecting stops fitting
the internal diameter of the outer ring.
Screwed into the retort stand I place a vertical tube pointing upwards and in this
tube fix a long solid rod very much longer than the tube itself. The tube is provided
with one or more set screws and collars so as to hold the rod at any height in the
tube so that the rod can actually have its end resting on the floor on which the tripod
stands or only entering the tube a small distance, the whole of the rest of the rod
being above it.

page_text: On this tube a series of stout retort rings are fixed by means of set screws in the
usual manner. One form of ring is, however, peculiar, namely, ,-a retort ring having
a rest projecting inwards on a screwed pin or bar. By this means the rest, which
resembles a photographer's head-rest, can be place at any position required in the
ring and thus lessen the width of orifice between the rest and the further side of the
ring. The rest is, of course, made preferably the segment of a circle, or curved
V shaped in contour and pointing towards the further side of the ring.
Or
This invention is applicable for a large number of uses, for instance in filtering an
inverted half-gallon or other bottle can be placed in two of the rings with a rose or
other nozzle at the bottom; below this on the ring of the tripod a filter funnel can be
placed and beneath the tripod a jar or can into which the filtered liquor falls.
by lengthening both the legs and the bar to their full limits a long filter bag can be
fixed to the smaller ring and hang suspended. If a small evaporating basin has to be
used the heating lamp is placed below and one of the smaller change rings or even a
three pointed skeleton ring placed in the tripod stand, the basin being placed upon
that. It will be obvious, however, that with this arrangement very many kinds of
chemical clips and other apparatus can be fixed to the standard and used in distilling
filtering and other operations.
W. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Patent Agents for the Applicant.

page_text: Referring to the drawings:-
:-
Figure 1 is a side elevation partly in section, and
Figure 2 is a plan of the apparatus.
Figures 3 and 4 show details of the apparatus hereinafter explained.
I form a tripod of a stout ring A, preferably of iron, in which three legs B,
preferably vertical, are screwed or otherwise fixed.
These legs B are tubular and each has a solid rod B₁ fitting the interior of the
tube B, which rod is held in place by set screws b, passing through the said tube B
and through collars thereon. By this means, when the legs of the stand require to
be lengthened, the bars B₁ can be pulled out and again fixed by the set screws b.
Other forms of telescopic legs can, however, be used.
The solid ring A can be provided with a series of other rings A' (see Figures 3
and 4) which fit one into the other, and have each of them a flange slightly
extending over the surface of the next outer ring. By this means, the central hole
in the ring A can be lessened to any desired extent. In place of having several
rings A¹ one fitting into another, change rings of different internal diameters can be
used. Any of the above rings may be held in position by means of two or more
projecting stops a, fitting the internal diameter of the next outer ring A or A¹.
Screwed or otherwise fastened into the top of the ring A of the retort stand I
place a vertical tube C, and in this tube C, I fix a long solid rod D, preferably very
much longer than the tube C itself. The tube C is provided with one or more set
screws c and collars, so as to hold the rod D at any desired height in the tube C, so
that the rod D can actually have its lower end resting on the floor on which the
tripod stands, or only entering the tube a small distance, the whole of the rest of the
rod D being above it.
On this rod D a series of stout retort rings E F is fixed by means of set screws ef
in the usual manner. One ring F is, however, of a peculiar construction. It is
formed of a retort ring having a rest F¹ projecting inwards and being supported on
a screwed pin or bar F. By these means the rest F which rather resembles a
photographer's head-rest, can be placed at any position required in the ring so as
to alter the width of orifice between the rest F₁ and the further side of the ring F.

page_text: The rest F, is, of course, made preferably the segment of a circle or it may be
curved, or V shaped in contour, the ends thereof pointing towards the further side of
the ring F.
This invention is applicable for a large number of uses, for instance, in filtering,
an inverted half-gallon or other bottle can be placed in two of the rings with a rose
or other nozzle at the bottom; below this, on the ring of the tripod, a filter funnel
can be placed, and beneath the tripod, a jar or can into which the filtered liquor falls.
Or by lengthening both the legs and the bar to their full limits a long filter bag can
be fixed to the smaller ring and hang suspended. If a small evaporating basin has
to be used, the heating lamp is placed below, and one of the smaller change rings or
even a three pointed skeleton ring placed in the tripod stand, the basin being placed
upon that. It will be obvious, however, that with this arrangement very many kinds
of chemical clips and other apparatus can be fixed to the standard and used in
distilling, filtering, and other operations.
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 laboratory stand consisting of a main or base ring A, of adjustable telescopic
legs B B¹, and of a socket ring or clip C fixed on one side thereof, and a standard D
held in said ring with vertical adjustment, substantially as and for the purposes
described.
2. A column having adjustable thereon a series of concentric or interchangeable
rings such as A¹ with central orifices of different diameters, to be placed over the
central opening of the stand at varying heights in combination with and supported
by a stool having a round hole for a retort, concentric with the axis of the orifices
above, substantially as set forth.
3. In a laboratory stand, a vertically adjustable supporting ring such as F, provided
on its interior with a movable rest F¹, capable of a horizontal adjustment to and
from the centre of said ring, substantially as and for the purposes set forth.
4. The improved laboratory stand and fittings arranged so that it can be quickly taken
to pieces, and so as to be capable of being packed in small compass, and of speedy
readjustment, substantially as described and illustrated.
Dated this 6th day of February 1889.