Applicable to Holders for Drawing, Writing, and other like Instruments and Materials.
Year: 1885

page_text: "
Applicable to Holders for Drawing, Writing, and other like
Instruments and Materials.
I, FRANCIS HARRIS of Spring Road Edgbaston near Birmingham, in the County
of Warwick, School Master, do hereby declare the nature of said invention for
IMPROVEMENTS IN DRAWING COMPASSES, WHICH IMPROVEMENTS ARE APPLICABLE TO
HOLDERS FOR DRAWING, WRITING AND OTHER LIKE INSTRUMENTS AND MATERIALS,"
to be as follows:-
My invention consists in constructing the holding or gripping parts of compasses,
and other like holders, for writing and other like instruments and materials, such
for example, as holders for pens, pencils, crayons, knives, brushes, needle points,
tooth-picks and the like, in the manner hereinafter described; whereby the parts
holding the pencil, pen or other material or instrument is gripped and firmly held
when in use. The holder is so constructed, that it is capable of accommodating
itself to materials and objects of varying thicknesses; and my said invention
consists essentially of a taper barrel or clip screwed externally, and divided or slit
longitudinally, for opening out, or contracting the parts which form or constitute
jaws or clips. The closing of the divided parts being effected by a ring screwing
upon the taper wormed barrel.
For convenience of description, I will first describe my invention in connection
with a Drawing Compass.
The holder or grip which is situated upon the short leg of the compass, consists
of a taper barrel or tube screwed externally and partially divided longitudinally
by two or more slits to allow the sides or holding parts to expand or open out to
take instruments or materials varying in thickness, and after the introduction of
the end or shank of such material or instrument into the holder, the partially
divided sides of the said holder are contracted or drawn upon the object to be held,
by means of a ring screwed internally, which screws upon the taper screwed barrel
of the holder, so that by the screwing up of the ring or collar, the object enclosed
or embraced between the sides of the holder are firmly gripped and held.
The barrel of the holder may be fashioned or raised from sheet metal,-the said
barrel part being an extension of the short leg of the compass, so that the holder
•

page_text: and the leg of the compass are raised from one piece of sheet metal; or the holder
may be made separate and attached to the short leg by a socket or joint.
When the holder is made from a highly elastic or yielding metal, only one
longitudinal slit is required.
The application of my invention to crayon holders and other holders for like
instruments and materials, differs only in the form of barrel or tube; thus, for a
crayon or pencil holder, the barrel is formed at its upper end into a socket in which
the handle of the holder is inserted, the lower or other end forms the jaws or grip
which embrace the writing material.
Improvements in Drawing Compasses, which Improvements are
Applicable to Holders for Drawing, Writing, and other like
Instruments and Materials.
I, FRANCIS HARRIS of Spring Road Edgbaston near Birmingham in the County
of Warwick, School Master, do hereby declare the nature of said invention for
IMPROVEMENTS IN DRAWING COMPASSES, WHICH IMPROVEMENTS ARE APPLICABLE TO
HOLDERS FOR DRAWING, WRITING AND OTHER LIKE INSTRUMENTS AND MATERIALS,
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement:-
My invention consists in constructing the holding or gripping parts of compasses
and other like holders for writing and other like instruments and materials; such
for example, as holders for pens, pencils, crayons, knives, brushes, needle points,
tooth picks and the like, in the manner herein after described; whereby the parts
holding the pencil, pen or other material or instrument is gripped and firmly held
in use The bolder is so constructed that it is capable of accommodating itself to
materials and, objects of varying thicknesses; and my said invention consists
essentially of a taper barrel or clip screwed or plain externally, and divided or slit
longitudinally, for opening out, or contracting the parts which form or constitute
jaws or clips The closing of the divided parts being effected by a ring, screwing
or sliding upon the taper wormed or plain barrel.
For convenience of description I will describe my invention in connection with a
drawing compass.
<

page_text: The holder or grip which is situated upon the short leg of the compass, consists
of a taper barrel or tube screwed or contracted externally and partially divided'
longitudinally by two or more slits to allow the sides or holding parts to expand
or open out to take instruments or materials varying in thickness, and after the
introduction of the end or shank of such material or instrument into the holder,
the partially divided sides of the said holder are contracted or drawn upon the
object to be held, by means of a ring screwed internally, which screws upon the
taper screwed barrel of the holder, so that by the screwing up of the ring or collar,
the object enclosed or embraced between the sides of the holder are firmly gripped
and held, by sliding the ring on barrel.
The barrel of the holder may be fashioned or raised from sheet metal; the said
barrel part being an extension of the short leg of the compass, so that the holder
and the leg of the compass are raised from one piece of sheet metal.
When the holder is made from a highly elastic or yielding metal, only one
longitudinal slit is required.
The application of my invention to crayon holders and other holders for like
instruments and materials, differs only in the form of barrel or tube; thus for a
crayon or pencil holder, the barrel is formed at its upper end into a socket in which
the handle of the holder is inserted, the lower or other end forms the jaw or grip,
which embraces the writing material.
I will now proceed to describe with reference to the accompanying Drawing the
manner in which the same is to be performed.
Figure 1 is a side elevation of a mathematical or drawing compass made
according to my invention; the holder or barrel is shown provided with, and
gripping a pencil-Figure 2 is an end elevation of the same, with the long leg not
shown, in order not to confuse the parts-Figure 3 is a section of the internally
screwed collar, which closes the divided parts of the holder, for the clamping between
them, of a pencil, pen, needle point or other object required to be beld-Figure 4 is
a like instrument provided with a pen, and figure 5 is the same, carrying a needle or
divider point-Figure 6 is a modification of figure 1; the taper barrel of the holder
is left plain, instead of being wormed, so also is the collar for the closing of the
divided or partially divided parts-Figure 7 is an end elevation of figure 6, and
figure 8 is a section of the collar.
The same letters of reference indicate corresponding parts in the several figures
of the Drawing.
a is a barrel or holder, taper and wormed upon the outside, and plain and parallel
upon the inside, and which said barrel is divided or partially divided longitudinally
by slits a², to allow the clamping parts to expand or open out, in order to take
instruments or materials varying in thickness-b is a collar or ring wormed
internally, and screwing upon the threads on the taper barrel-a³ is a collar stop
at the reduced and bottom part of the barrel, for preventing the collar or ring b
from becoming detached or removed. c is the short leg of the instrument carrying
the holder a, and d is the long leg of the instrument, and e is the lead clamped
between the halves of the holder.
To introduce a lead or other instrument within the holder, rotate the ring or
collar b so as to allow the sides or split parts to expand or open out, then introduce
the lead or instrument into the plain bore of the holder, and screw home the collar
or ring b, when the sides of divided parts of the holder are closed upon an
instrument, lead or other object, thereby firmly affixing the said object within the
holding device of the instrument.
In figure 6, a is a plain taper barrel, b is a plain collar working upon the said
barrel, a² is the split or division passing longitudinally from the bottom of the holder
to within a short distance up the leg, as best seen in figure 7. a³ is a collar upon
the lower part of the holder, to prevent the plain ring 6 from being withdrawn or
removed.
To introduce a lead or other instrument within the clamping device of the compass,
slide the ring b to that part of the barrel reduced in diameter, then introduce the

page_text: lead or instrument within the plain parallel bore, and slide the ring up the taper of
the barrel, which closes the divided or partially divided sides thereof, and grips the
object firmly between them.
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
First. A holding or clamping device for drawing instruments, consisting of a
screwed taper barrel with a plain bore, and which said barrel is divided or partially
divided longitudinally, so as to form expanding or contracting jaws or sides which
are opened out or closed upon an instrument or other object to be held, by
an internally wormed loose collar or ring screwing upon the taper body of the
holder; the withdrawal of the said collar or ring being prevented by a fixed
collar, substantially as described and illustrated in figures 1, 2, 3, 4 and 5 of the
accompanying Drawings.
Secondly. A clamping or holding device for drawing instruments, consisting of
a plain taper barrel or holder divided or partially divided longitudinally, and
encircled by a plain ring for the drawing together of the sides of the holder, upon
an object to be held, substantially as described and illustrated in figures 6, 7
and 8.