Improvements in Pivot Adjustments applicable to Looking Glasses: and other articles.
Year: 1891

page_text: Date of Application, 14th Nov., 1891-Accepted, 26th Mar., 1892
COMPLETE SPECIFICATION.
Improvements in Pivot Adjustments applicable to Looking Glasses:
and other articles.
We, JOHN WOOTTON of the firm of Wootton Bros. & Radford, of Newton
Street, Birmingham, in the County of Warwick Merchants and STANISLAUS.
RENSCHEL of 14 Upper Woburn Place, London in the County of Middlesex, Clerk,
do hereby declare the nature of our said invention and in what manner the same.
is to be performed to be particularly described and ascertained in and by the
following statement :-
Our invention has for its object, improvements in looking-glass movements which
are much more regular, easy and certain in their action than heretofore and they
are so constructed that the wear is automatically taken up and compensated for
without the least adjustment or attention so that the device once properly mounted
would certainly remain in a constantly perfect condition for a great many years and
this without any set screw or other arrangements requiring adjustment.
In order that our invention may be clearly understood and more easily carried
into practice we have appended hereunto a sheet of drawings upon which is
illustrated one example of a set of mountings from one side of a looking glass and
from which others may be made of different and varying external configuration or
design without departing from the nature of the invention.
Figure 1, is a broken off elevation of a looking glass with a movement attached
thereto.
Figures 2, are a front elevation and longitudinal section of part of the mounting.
namely the plate E which fits upon the inside of the looking glass frame C.
Figures 3, are a side elevation and plan of that part of the mounting K which.
fits into E.
Figures 4, are a front and side elevation of that part of the mounting S which
fits upon the side of the glass.
Figures 5, shews the three parts E, K, and S brought together as they would be
in practical operation.
The plate E may be of any external shape or thickness but I prefer it thin with
a raised boss e which is provided with the hole e3 which is countersunk or recessed
either diagonally circular or otherwise so as to receive the part K which is turned
externally to fit in the recess es so that the two parts E and K may come together
accurately as shewn at Figure 5 so that the hole when the movement is new may
have the back part of the hole 3 (see Figure 5) clear of the face of the boss e for
the purpose hereafter to be explained. The part S Figures 4 is found to fasten on
to the edge of the glass or other swing or pivotted article so that the projecting
part stands out sufficiently to take into the hole 2. This part is thinner at
the point than at the roots & so that the constant tendancy of the weight of the
glass or other article will be to draw the part K against the inside of e* of E.
This action not only produces steadiness and accuracy of movement but it
effectively takes up any wear upon the surface of and e* and moreover this action
is automatic which is a very great advantage in practice as it is the commonest
thing to see swing glasses and other articles of similar action packed so as to
maintain them in one position and the action after a little wear is frequently stiff in
some parts and loose in others and jerky. The cross section of 3 of S may of
course be almost any shape but we prefer an oblong with rounded edges.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
The improvements in looking-glass movements applicable to other articles of the
parts E, K and S working together substantially as and for the purpose herein set
forth and as shewn upon the drawings.
Dated this 13th day of November 1901
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.