Improvements in Compasses for Holding Pencils.
Year: 1893

page_text: Date of Application, 16th Jan, 1893
Complete Specification Left, 20th Feb., 1893-Accepted, 13th. May, 1893 >
PROVISIONAL SPECIFICATION.
Improvements in Compasses for Holding Pencils.
CHARLES SMITH and WILLIAM THOMAS SMITH Manufacturers of Stationers'
Sundries of No. 288 Icknield Street Hockley Birmingham and EDWARD BROWN
222 Lozells Road Aston Birmingham Glass Cutter do hereby declare the nature
of this invention to be as follows:-
-
:
The object of this invention is to provide for holding all sizes of lead pencils, which
can be used in the same compass as required.
This is effected in the following manner; instead of a round tube or barrel either
wholly incapable or possessing but very limited power of compression as at present
employed, we provide a balloon shaped one with a thumb screw in the centre of the
top or wide portion of the tube, thus when a large pencil is used the screw is turned
very little into the tube or barrel but as the size of the pencil required decreases
the screw can be turned as much as is necessary to press the pencil on to the tapering
sides of the tube so as to hold it firmly. -
By this simple device the different size tubes or barrels in all compasses which
are at present necessary for the pencils in general use are done away with and the
largest as well as the very smallest can be held securely in the same compass.
Dated this Fourteenth day of January 1893.
EDWARD BROWN.
CHARLES SMITH.
WILLIAM THOS. SMITH.
COMPLETE SPECIFICATION.
Improvements in Compasses for Holding Pencils.
EDWARD BROWN 222 Lozells Road Aston Birmingham Glass Cutter CHARLES
SMITH 288 Icknield Street Birmingham Pencil Case Manufacturer WILLIAM
THOMAS SMITH 288 Icknield Street Birmingham Pencil Case Manufacturer 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 improvements in compasses which is to make the
cylinder for the lead pencil capable of securely holding any size pencil, pen or
steel point, and consists in the employment of a balloon shaped hole instead of a
round one, with thumb screw passing through the top of cylinder which presses on
to pencil a thin steel spring, securing firmly any sized article within the limit of
cylinder. The thumb screw instead of pressing upon the steel spring may come
direct upon the article to be secured.
Figure 1 of the accompanying drawing represents side elevation of compass
provided with the balloon shaped cylinder constructed arranged and provided
according to my invention with large pencil in.
Figure 2 represents front view of Figure 1.
Figure 3 is same as Figure 1 but with small pencil in.
Figure 4 is front view of Figure 3.
A is the pencil. B is the cylinder. C is the thumb screw pressing on to pencil
spring D, which is secured at one end in casting forming cylinder by being forced
into a slot E. In Figure 1 and 2 the thumb screw need pass but slightly into
cylinder before its pressure upon the spring is effectual in forcing the pencil to a firm
bearing on each side of the narrowing portion of cylinder, and as the size of pencil
D 027

page_text: to hold decreases so the screw is turned, until it secures the smallest pencil as shown
in Figure 3 and 4.
Figures 5, 6, 7 and 8 show the cylinder without the spring, the thumb screw
operating direct on to the pencil.
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
A balloon shaped cylinder capable of holding all sizes of lead pencils, drawing
pens or steel points, with spring pressed on to pencil by thumb screw or with thumb
screw operating direct as set forth.
Dated thin 10th day of 1000
EDWARD BROWN.
CHARLES SMITH.
WM. THOS. SMITH.