Improvements relating to Volt Meters, which are applicable to Ampere Meters.
Year: 1894

page_text: Date of Application, 15th Aug., 1894-Accepted, 3rd Nov., 1894
COMPLETE SPECIFICATION.
Improvements relating to Volt Meters, which are applicable to
Ampere Meters.
I, FREDERICK BROWN, of The Walsall Electric Company, Limited Bridge
Street, Walsall, in the County of Stafford, Electrical Engineer, 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 relates to volt meters used for indicating the voltage of electro
motive force, it is also applicable to Ampere meters.
My said invention consists essentially in an arrangement whereby the core
constituting the moveable and fixed electro magnets may be attached or detached
from a volt or Ampere meter in a more efficient and expeditious manner than
heretofore.
My invention consists further in an improved method of making the annular
ring for holding or fixing the glass front to volt or Ampere meters.
In the ordinary glazing arrangement the annular ring is made by casting a solid
metallic ring which is usually of a heavy appearance and costly to make.
By my invention I make the said ring of sheet metal, either by spinning stamping,
rolling or other suitable process which produces the said ring, in a cheap, efficient
& more serviceable manner than those of the ordinary kind.
I will proceed to describe my invention by reference to the accompanying
drawings, the letters of reference indicating similar parts throughout.
Figures 1 and 2 show a side and front elevation respectively of a volt meter.
Figure 3 shews a core A disconnected from the volt meter.
In Figure 1 the core A is shewn attached to the cheek or brass reel F which
carries the coil or electro-magnet constituting a fixed and moveable electro magnet.
The core A being connected to the cheek N by the screws B passing through the
holes B' thus allowing it to be easily attached or detached. The terminals K, K,
are connected to the electro-magnet by means of the wires M, M, shewn in dotted
lines.
D is an annular ornamental ring for holding the glass C against the bezel E,
the ring D being attached to the case of the volt meter by means of the
screws F.
Figure 4, shows a front view, and Figure 5 a section of the ring D, which may
be made either in one or more parts, either from a metallic circular blank or from
a short length of metallic tube. may shape or fashion the ring D either by a
spinning or stamping process or by other suitable means.
I do not confine myself to any particular shape pattern or configuration of the
ring but may vary the same as circumstances require, to suit the various conditions
of the application of my invention without departing from the nature thereof.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A volt or Ampere meter provided with detachable electro magnets substantially

page_text: 2. A volt or Ampere meter provided with an ornamental metallic ring D, made
from a sheet metal blank or short length of metallic tube, substantially as and for
the purpose herein before described and illustrated.
Dated this 10th day of August 1894.
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicant.