Improvements in and connected with Dish Rocking Apparatus for Photographic and other purposes.
Year: 1898

page_text: Improvements in and connected with Dish Rocking Apparatus for
Photographic and other purposes.
ARTHUR SALMON, 169, Hampstead Road, London, W., Optician and Photo-
grapher, do hereby declare the nature of this invention to be as follows:-
The apparatus which is constructed to carry one or a number of dishes consists of
two boards the one longer than the other, on the shorter or base board, at a distance
apart, two pillars are fixed, through the tops of these pillars two steel screws with
male centres are tapped, the longer or rocking board has two slots cut at a distance
apart corresponding to the two pillars attached to the base board, on the inner edge
of these slots a steel centre is fixed midway in the thickness of the rocking
board, and the steel centres of this board rock on the steel centres of the pillars
attached to the base board, the rocking board on which the dishes are placed
being the longer the end projects beyond the base board, and a detachable
weighted pendulum is made to hang from this projection, which if set in motion
will rock for a considerable time, and by means of a bolt the rocking board can
be made stationery when required.
Improvements in and connected with Dish Rocking Apparatus for
Photographic and other purposes.
I, ARTHUR SALMON, of 169, Hampstead Road, London, N.W., Photographer,
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 reference to improvements in apparatus for rocking dishes
used for developing photographic plates or other purposes, the object being to
construct a cheap but efficient rocker that will carry one or a number of dishes
and that can be conveniently caused to rock or can be made stationary, at will.
As an example I have shown a rocker constructed according to my invention
in the accompanying illustrative drawing, wherein, Fig. 1, shows a side eleva-
tion, Fig. 2, a plan, Fig. 3, an end elevation, Fig. 4, an elevation of the opposite
Price 1

page_text: end to that shown in Fig. 3, and I will proceed to describe the same with refer-
ence to such drawing. 1, is the rocking board or table, supported at 2, 2 on
pivots carried by pillars or uprights 3, 3, fixed to the base 4.
The rocking board or table 1, is, as shown, longer than the base and its over-
hanging end is provided with a weighted pendulum 5. To make the pendulum
readily detachable, when desired, for transport or other purpose, the upper end
of the pendulum rod is formed with lateral extensions 5*, 5*, adapted to drop into
a recess 5b, formed in a block 1ª fixed to the overhanging end of the rocking
board or table. 5°, is a button which holds the pendulum rod in position but
which, when turned from the position shown in Fig. 4, to a position in which
its longitudinal axis is horizontal, allows the pendulum to be readily removed.
6, is a bolt or catch pivoted at (to the base 4 and adapted to take into an
eye 6b fixed to the rocking board or table 1, and whereby the table 1 is made
stationary when required 7, is a bolt that extends from one upright 3 to the
other, and whereby, as will be seen, upon turning the nuts 7*, the pivots will be
readily adjusted.
Fig. 5, ahows to a larger scale one of the supports in elevation, partly in
section on the line rr, of Fig. 2. With reference to this figure I will describe
the same, premising that the other support is constructed in precisely the same
manner.
8, is a steel screw with male centre, screwed into the upper part of the pillar
or upright 3. 9, is a slot cut in the rocking board or table 1, to the inner
end 9 of which a steel centre 10 is fixed, midway in the thickness of the rock-
ing board or table; as will be seen, the screw 8, works in the centre 10, the
arrangement being such that lubricant can be easily applied to the pivot, from
the top of the apparatus, through the slot 9.
The steel centre 10 is fixed to the rocking table 1 by means of screws passing
through a part 10ª bent so as to bear on the underside of the rocking table.
The pillar or upright 3 has a foot 3* by means of which it is fixed, by screws,
to the base 4.
When in use the apparatus is placed on a table or bench with the pendulum
hanging over one edge.
In some arrangements I may form the uprights 3 and feet 3ª of one piece,
as shown in dotted lines in Fig. 2, in which case a base board would not be
absolutely essential as the long foot 3* would form a base and could be screwed
direct to the work bench or table.
The several parts of my improved rocker may be constructed of various
materials, also the proportions may vary and the details of construction be modi-
fied accordingly.
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 rocking apparatus constructed to carry one or a number of dishes, the
rocking board or table being pivoted on two pivots carried by a base, the said
board or table being longer than said base and its overhanging end being pro-
vided with a detachable weighted pendulum; and means for locking the rocking
board or table to the base substantially as herein set forth for the purpose
specified.
(2). A rocking apparatus constructed to carry one or a number of dishes, the
rocking board or table being formed with two slots at the inner edge of each
of which is fixed a steel plate formed with a small hole adapted to receive the
point of one of a pair of steel screws carried by pillars or uprights which are
fixed to, or which form part of, a base, the said rocking board or table being
longer than the base, its overhanging end being provided with a detachable
weighted pendulum; and means such as a pivoted bolt or catch whereby the

page_text: rocking board or table can be made stationary when desired, substantially as
discribed.
(3). The rocking apparatus constructed, arranged and operating, substantially
as discribed with reference to, and shown in, the accompanying drawing.
Dated this 29th day of November 1898.
ARTHUR SALMON.