Year: 1886

page_text: We WILLIAM FREDERICK BARTON MASSEY-MAINWARING of 30 Grosvenor Place,
Gentleman and LOUIS GEOFROY of 59 Frith Street, Soho Sculptor both in the
County of Middlesex do hereby declare the nature of this invention to be as follows:-
The invention relates to that class of holders in which the marking material is
nipped and held between jaws which are compressed around such material by the
action of coned surfaces.
A very objectionable feature in that class of holders is that the clamping jaws nip
or hold the marking material by their sharp edges at one point, and thus speedily
weaken the marking material and cause it to break at that part, and furthermore in
consequence of the small surface of the clamping jaws in contact with the marking
material there is a tendency, when such jaws are slightly expanded to allow of the
marking material being advanced into position for use, for the marking material to
entirely slip through such jaws and become lost or broken.
Now the object of our invention is to obviate theso disadvantages by causing the
marking material to be held or nipped along some considerable portion of its length
between plain or smooth or comparatively smooth surfaces.
For this purpose we employ a split tube or cylinder to encircle the marking material
within the nozzle of the holder, in such manner that normally such split tube springs
open clear of the marking material, but is capable of being compressed around the
same in order to hold it at any given point.
Upon one end of such split tube we form a coned surface which is acted upon by a
similar or other suitable surface formed within the nozzle and at the other end of such
split tube we form another coned surface, but in the reverse direction to that first
named, which is acted upon by a similar or other suitable surface formed upon a
sliding sleeve.
This sliding sleeve is by means of a spiral or other suitable spring normally forced
down upon the upper coned surface of the split tube thereby moving such tube endwise
and compressing the same around the marking material, but such sleeve is provided

page_text: with a projection or stud capable of being acted upon by the finger of the user,
whereby it may be partially or entirely withdrawn from the split tube, when it is
desired to release and advance, or retract the marking material.
In some cases we may dispense with the coned surfaces upon the split tube and
employ coned surfaces within the nozzle and the sliding sleeve to act directly upon
the split tube.
By these means we are enabled to hold the marking material firmly and without the
disadvantage of cutting or weakening it, at the part where it is held, by the continued
action of the holding device and we are also enabled in consequence of the extended
acting surface of the holding device to retain more complete control of the movements
of the marking material whilst the same is being advanced or retracted, thereby
avoiding the loss and breakage of such material, common in existing holders.
It will be understood that although we have described our holding device in
connection with the nozzle of a holder for lead, crayon or other material such device
may be placed at any other convenient part thereof with equal effect.

page_text: We WILLIAM FREDERICK BARTON MASSEY MAINWARING of 30 Grosvenor Place,
Gentleman, and LOUIS GEOFROY of 59 Frith Street Soho, Sculptor, both in the
County of Middlesex 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:-
The invention relates to that class of holders in which the marking material is
nipped and held between jaws which are compressed around such material by the
action of coned surfaces.
A very objectionable feature in that class of holders is that the clamping jaws nip
or hold the marking material by their sharp edges at one point and thus speedily
weaken the marking material and cause it to break at that part, and furthermore in
consequence of the small surface of the clamping jaws in contact with the marking
material there is a tendency, when such jaws are slightly expanded in order to allow
of the marking material being advanced into position for use, for the marking material
to entirely slip through such jaws and become lost or broken.
Now the object of our invention is to obviate these disadvantages by causing the
marking material to be held or nipped along some considerable portion of its length,
between plain or smooth or comparatively smooth surfaces.
For this purpose we employ a split tube or cylinder to encircle the marking
material within the nozzle of the holder, in such manner that normally such split tube
springs open clear of the marking material but is capable of being compressed around
the same in order to hold it at any given point.
Upon one end of such split tube we form a coned surface which is acted upon by a
similar or other suitable surface formed within the nozzle and at the other end of such
split tube we form another coned surface, but in the reverse direction to that first
named, which is acted upon by a similar or other suitable surface formed upon a
sliding sleeve.
This sliding sleeve is by means of a spiral or other suitable spring normally forced
down upon the upper coned surface of the split tube thereby moving such tube end wise
and compressing such tube around the marking material but such sleeve is provided
with a projection or stud capable of being acted upon by the finger of the user
whereby it may be partially or entirely withdrawn from the split tube when it is
desired to release and advance or retract the marking material.
In some cases we may dispense with the coned surfaces upon the split tube and
employ coned surfaces within the nozzle and the sliding sleeve to act directly upon
the split tube.
By these means we are enabled to hold the marking material firmly and without the
disadvantage of cutting or weakening it, at the part where it is held, by the continued

page_text: action of the holding device and we are also enabled in consequence of the extended
acting surface of the holding device to retain more complete control of the movements
of the marking material whilst the same is being advanced or retracted, thereby
avoiding the loss and breakage of such material, common in existing holders.
It will be understood that although we have described our holding device in
connection with the nozzle of a holder for lead, crayon or other material such device
may be placed at any other convenient part thereof with equal effect.
And in order that the said invention may be more clearly understood and readily
carried into effect we will proceed aided by the accompanying drawings more fully
describe the same.
Figure 1 is a longitudinal vertical section taken on the line 1, 1, of Figure 2.
Figure 2 is a transverse section taken on the line 2, 2, of Figure 1 illustrating a
holder for lead, crayon or other marking material constructed according to our
invention.
Figure 3 is an underside view of the nozzle end of the hoder. Figure 4 is a
longitudinal section taken on the line 3, 3, of Figure 2 of a portion of Figure 3.
Figure 5 is a longitudinal section of the sleeve with its connected push piece or
stud and Figure 6 is an end view thereof.
Figure 7 is a longitudinal vertical section showing the nozzle separately and
Figure 8 is an end view thereof and Figures 9 represent respectively a side view, an
opposite side view and a plan showing the split tube or clamp separately.
In all the figures of the drawings, which are made to an enlarged scale, like parts
are marked with similar letters of reference.
We will describe our invention in connection with a magazine holder for leads
crayon or other marking material in which any one of the lengths of marking material
contained therein is capable of being brought into use when required without
removal from the magazine.
-
The magazine portion a of the holder is constructed with several longitudinal
chambers or barrels a¹ therein capable of revolving around the central longitudinal
axis a². The barrels or chambers a' forming the magazine a are encircled by a band
or collar a³ which forms a bearing upon which the short tube 61 carrying the nozzle b
can be revolved. The short tube ¹ is securely connected to the magazine a by passing
the end of the central rod or axis or stud a through an aperture in a disc 6' fixed to
the tube 6 and there rivetting it but so as to allow of the nozzle b and tube b' being
revolved in relation to the magazine a in order to bring the passage through the
nozzle b into line with any one of the longitudinal chambers a¹ of the magazine as
may be required.
The short tube b' is formed with notches 63 and the magazine a is furnished with a
spring stud a* to act in conjunction therewith in order to hold the nozzle opposite any
given barrel of the magazine and prevent accidental rotation of the parts in relation to
each other and yet allow of such nozzle being revolved when desired.
When the chambers a¹ are to be supplied with different coloured leads or marking
material, I form recesses in the tube 6 corresponding with the notches b³ which recesses
may be filled with enamel or other material of corresponding colour so as to indicate
when a particular coloured length of marking material is in line with the nozzle b.
Other means may however be adopted for indicating the contents of the various
barrels or chambers a¹.
A very objectionable feature of this class of holders as heretofore constructed is that
the clamping jaws nip or hold the marking material by their sharp edges at one point
and thus speedily weaken the marking material and cause it to break at that part and
furthermore in consequence of the small surface of the clamping jaws in contact with
the marking material there is a tendency when such jaws are slightly expanded in
order to allow of the marking material being advanced into position for use, for the
marking material to entirely slip through such jaws and become lost or broken.

page_text: Now according to our invention we obviate these disadvantages by causing the
inarking material to be held or nipped along some considerable portion of its length
between plain or smooth or comparatively smooth surfaces.
For this purpose we employ a split tube or cylinder c to encircle the marking
material within the nozzle b in such manner that normally such split tube springs open
clear of the marking material a* but is capable of being compressed around the same
in order to hold it at any given point.
Upon one end of such split tube c we form a coned surface c' which is acted upon
by a similar surface b, or it might be any other suitable surface formed within the
nozzle b and at the other end of such split tube c we form another coned surface c² but
in the reverse direction to the coned surface c', which is acted upon by a coned
surface d' or it might be any other suitable surface formed upon a sliding sleeve d,
that is to say the coned surface 64 might act on a plain surface c¹ upon the split tube
and the coned surface c² might be dispensed with and the coned surface d' retained
upon the sleeve d or the coned surface d¹ might be dispensed with and the coned
surface retained upon the tube or cylinder c.
The sliding sleeve d is carried by a sliding bar d² which is acted upon in one
direction by a spiral spring d³ or it might be any other suitable form of spring,
whereby the sleeve d is normally forced down upon the coned surface c² of the split
tube c thereby moving such tube endwise, and by means of the coned surfaces
compressing such tube around the marking material.
The sliding bar d² is provided with a stud or projection d' capable of being acted
upon by the finger of the user whereby the sleeve d may be partially or entirely with-
drawn from the split tube c when it is desired to release and advance or retract the
marking material.
By these means we are enabled to hold the marking material firmly and without
the disadvantage of cutting or weakening it, at the part where it is held, by the
continued action of the holding device, and we are also enabled by the extended
acting surface of the holding device or clamp to retain more complete control of the
movements of the marking material whilst the same is being advanced or retracted
thereby avoiding the loss and breakage of such material, common in existing holders.
We would have it understood that although we have described our invention in
connection with a magazine holder for lead, crayon or other marking material it is
equally applicable to other forms of holders and it may then if desired be placed at any
other convenient part thereof than in the nozzle with equal effect.
Having now particularly described and ascertained the nature of our said invention
and in what manner the same is to be performed, we declare that what we claim is :-
C
1. A holder for lead crayon or other marking material furnished with a clamping
device consisting of coned surface 64 split tube or cylinder e provided with coned or
other suitable surfaces c c sliding sleeve d formed with coned or other suitable
surface d' and carried by a sliding bar d' furnished with a stud or push piece d' and
acted upon by a spring d³ such clamping device being so constructed as to nip the
marking material along some considerable portion of its length, all in manner
substantially as herein shown and described, and for the purpose stated.