Year: 1887

page_text: Date of Application, 16th June, 1887
Complete Left, 16th Mar., 1888
Complete Accepted, 4th May, 1888
I, WALLACE JOHN REYNOLDS of 2 Heath Street, Commercial Road East, County of
Middlesex, Nautical Instrument Manufacturer do hereby declare the nature of this
invention to be as follows
-
The object of this invention is certain detail improvements connected with Mariners
liquid Compasses to render them easy of construction and very strong. To balance
the card more efficiently. To enable the filling to be done by inexperienced hands.
To preserve the bowl against injury. To fasten the top ring frame to an under one.
To a novel method of fitting the top glass and making the joint liquid tight.
To a novel means of compensating for expansion and contraction of the liquid.
To a novel construction of bowl for transparent compasses with means for securing
the hollow glass in position.
According to the first part of my invention, I construct the bowl proper of copper
or like metal by the spinning process, with a top socket flange and a spread out
lip, the bottom of the bowl is cone shaped and formed with a central threaded
ferrule.
According to the second part, I form the centre pin or card supported stem shaped
the bottom of which is screw threaded and provided with a head which hermetically
closes, the aperture by bearing on the flange of same, it is by this hole that the filling
can be effected on the "card centre" and screw stem being removed.
According to the third part, the bottom socket as a ring is screw threaded on the
exterior for the reception of a band, in which a rubber or other cushion is inserted or
put in combination, said rubber or its equivalent projecting beyond the band as a
guard.
According to the fourth part of this invention I form a flanged ring and perforate
it at certain parts for the reception of screw pins, which screw into an under band or
ring, this having gimball arms for gimballing the bowl from the upper or other part.
This flanged ring bears upon a tin foil covered rubber cushion which fills up the gap
in the lip of the bowl flange or socket to make the glass fit in a liquid tight
manner.

page_text: According to the fifth part of this invention, I provide the lower or conical part of
the bowl with a couple or more of air vessels which can be collapsed under pressure of
liquid due to heat, an air passage being provided leading into a chamber loosely
formed by a weight which balances the bowl.
According to the sixth part of my invention, I spin a lower flange of the bowl
similar to the upper one and fix the glass in, in like manner. In this case the
bowl is formed without the conical shaped bottom, and the card centre is fixed on a
cross bar.
Roller bearing can be used for the gimballing.

page_text: Improvements in or Connected with Mariners' Liquid Compasses.
I WALLACE JOHN REYNOLDS of 2 Heath Street, Commercial Road East, County of
Middlesex, Nautical Instrument Manufacturer, do hereby declare the nature of my
said invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
The object of this invention is certain detail improvements connected with Mariners
Liquid Compasses to render them easy of construction and very strong.
To balancing the card more efficiently.
To enable the filling to be done by inexperienced hands. To preserve the bowl
against injury. To fasten the top ring frame to an under one. To a novel method of
fitting the top glass and making the joint liquid tight. To a novel means of
compensating for expansion and contraction of the liquid.
To a novel construction of bowl for transparent compasses with means for securing
the bottom glass in position.
According to the first part of my invention which I show in the annexed drawings
Figure 1 I construct the bowl proper A of copper or like metal by the spinning
process, with the top pocket flange B and a spread out lip C. The bottom Ď
of the bowl is cone shaped the apex having a hole E in it for the attachment of a
threaded ferrule F as seen in Figure 2.
According to the second part, see Figure 2, I form the centre pin or card
supporter G stem shaped the bottom of which is screw threaded and provided with a
head H which hermetically closes the aperture in the ferrule F by bearing on the
flange of the ferrule. It is by this hole that the filling can be effected, on the card
centre and screw stem being removed.
According to the third part the bottom socket or ferrule F is screw threaded on the
exterior for the reception of a band I in which a rubber or other cushion J is inserted
or put in combination, said rubber or its equivalent projecting beyond the face of the
band as a guard.
According to the fourth part of this invention I form a flanged ring K, see enlarged
view Figure 3, and I perforate it at certain parts for the reception of screw pins a a,
see Figures 24 and 5, which screw into it from an under band or ring L this having
gimball arms M for gimballing the bowl from the upper or other part. The flanged
ring K bears upon a layer of tin foil N covered by a rubber cushion P which fills up
the gap over the lip of the bowl flange or socket B to make the glass Q fit in a
liquid tight manner, or the rubber may be enclosed in tinfoil by wrapping. According
to the fifth part of this invention I provide the lower or conical part of the bowl with
a couple or more of air vessels RR, see Figure 2, which vessels can be collapsed
under pressure of liquid due to heat, air passages S, S, being provided leading
into a chamber formed by a hollow in the weight T which balances the bowl and its
appendages.

page_text: In this
According to the sixth part of my invention, see Figure 5, I spin a lower flange B
of the bowl A similar to the upper one and fix a glass Q in, in like manner.
case the bowl is formed without the conical shaped bottom D and the card centre G
is fixed on a cross bar U.
Roller bearings can be used for the gimballing.
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. The manufacture and employment of a compass bowl of substantially the shapo
shown at Figure 1 of the annexed drawings and produced by the spinning operation
as described.
2. The improved centre or compass card supporting pin G as a headed screw pin
inserted from the bottom through a hole which also formis the hole through which the
compass bowl may be filled as described with reference to Figure 2 of the annexed
drawings.
3. The bottom socket or ferrulo F for protecting the head H of the card supporting
pin G and the placing thereon by screwing the cap or band I as described with
reference to Figure 2 of the annexed drawings.
4. The combination of flanged ring K rubber or other cushion P, tin foil or its
equivalent N for retaining the glass in place and also for protecting the cushion P
from contact with the spirit with which the compass bowl is filled, the whole making
a hermetically sealed joint with the lip C of the bowl A when the two rings K L are
drawn together by the screw pins a whether such combination of appliances be
arranged at the top of the bowl as at Figures 2 and 3 or at top and bottom of a
doubled pocket flango B and lipped end or ends of a compass bowl produced by tho
spinning operation as described with reference to Figures 1. 2. 3 and 5 of the annexed
drawings.
5. The employment of air or compensating vessels R. R. to a spun bowl formed
with flanges B, C, of the single kind as shown at Figure 1 or double flange as at
Figure 5 and preferably in combination with channelled weight T which balances the
bowl, if of the single flange construction as described with reference to Figure 2 of
the annexed drawings.