Improvements in Pivot Adjustments for Looking Glasses and the like.
Year: 1898

page_text: Dale of Application, 9th Mar., 1858
Complete an ifnation Laft 22nd Nov 1908 Accented 23rd Dec. 188
PROVISIONAL SPECIFICATION.
Improvements in Pivot Adjustments for Looking Glasses and the like.
We, BENJAMIN BANKS, of Lee's Yard, Meadow Lane, Machine Maker, and
EDWIN VERITY, of Briggate, Furnishing Ironmonger, both of Leeds, in the
County of York, do hereby declare the nature of this invention to be as follows:-
This invention refers to pivot adjustments for looking glasses and the like, and
our object is to, so improve the construction that the working is improved and
the cost of production is reduced.
According to our invention we attach a plate to the pillar or other support,
the said plate having a friction surface on its face, and slot in the said face
gives access to a taper recess in the back of the plate having sliding surfaces on
the interior edges of same. A rocking plate having a similar friction surface
and a countersunk circular recess at the back, is attached to the swing frame of
the looking glass, and a washer contained in the countersunk recess is connected
by a non-circular rivet to a slide block situated on the friction face and having
flanged sides which slant away from the said friction face.
In placing the swing frame in position, the slide block enters the slot in the
plate, the flanged sides sliding down the sliding surfaces and pulling the two
friction surfaces together, with the consequent result of forming a good friction
joint.
In cases where a taper friction surface is preferred to that of two flat friction
faces, a hollow washer having a conical flange on same is fitted over the slide
block; the said conical flange embracing a conical edge on the plate, and thus
giving the required resistance.
COMPLETE SPECIFICATION.
Improvements in Pivot Adjustments for Looking Glasses and the like.
We, BENJAMIN BANKS, of Lee's Yard, Meadow Lane, Machine Maker, and
EDWIN VERITY, of Briggate, Furnishing Ironmonger, both of Leeds, in the
County of York, 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 refors to nixat adiustments for looking classes and the like and

page_text: our object is to so improve the construction that the working is improved and
the cost of production is reduced.
In order that our invention may be clearly understood, we will proceed to
describe same with reference. to the accompanying drawing, in which similar
letters refer to like parts in all the figures.
Figure 1 is an elevation and Figure a vertical section of a pillar plate, and
Figure 3 is an elevation and Figure 4 is a vertical section of a swing plate, both
constructed in accordance with our invention, and Figure 5 is a vertical section
of the two plates when placed together.
According to our invention we employ a plate A which we attach to the pillar
or other support, the said plate A having a friction surface B on its face, and a
slot C in the said face gives access to a taper recess D in the back of the plate A
having sliding surfaces on the interior edges E as seen at Figures 1 and 2.
A plate having a friction surface G on its face and a counter-sunk circular
recess H at the back, is attached to the swing frame of the looking glass, and a
beveled washer J contained in the counter-sunk recess H is connected by a non-
circular rivet K to a slide block L situated on the friction face G and having
flanged sides M which slant away from the said friction face as seen at Figures 3
and 4.
In placing the swing frame in position, the slide block L of the plate Fenters
the slot C in the plate A, the flanged sides M sliding down the sliding surfaces E
and pulling the two friction surfaces B and G together and pressing the beveled
edge of the washer J against the counter-sunk sides of the recess H, as seen at
Figure 5, with the consequent result of forming a good friction joint.
Instead of the beveled edge of the washer J bearing against the counter-sunk
sides of the recess H, the washer itself may bear against the base of the recess.
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:-
-
1. In pivot adjustments for looking glasses and the like, the slide block L
having flanged sides M, in combination with the sliding surfaces E, substantially
as and for the purposes set forth.
2. In pivot adjustments for looking glasses and the like, the recess H, washer J,
and non-circular rivet K, in combination with suitable wedge surfaces whereby
the plates A and F are held together in frictional contact, substantially as set
forth.
3. In pivot adjustments for looking glasses and the like, the plate A having a
friction surface B, slot C, and taper recess D with its sliding surfaces E, in com-
bination with a plate F having a friction surface G, counter-sunk recess H,
beveled washer J, non-circular rivet K, and slide block L with its flanged sides M,
substantially as and for the purposes set forth.
Dated this 19th day of November A.D. 1898.
BREWER & SON,
London and Leeds, Agents for the Applicants.