Year: 1887

page_text: Date of Application, 20th Aug., 1887
Complete Left, 3rd Feb., 1888
Complete Accepted, 23rd Mar., 1888
1, JOHN HOWARD CARTLAND of the firm of James Cartland & Son Constitution Hill,
Birmingham Brassfounders, do hereby declare the nature of this invention to be as
follows:-
This invention relates to the attachment of knobs other than glass or earthenware,
to their spindles and has for its object such attachment being made in a much more
simple and cheaper manner than hitherto.
I provide a serrated spindle that is a spindle generally square having teeth formed
upon its surface, I then provide a knob, of wood or metal or other material, except glass or
earthenware, having formed within it a hole of a suitable form to receive the spindle
and also a spring hereafter described. At the front of the neck of the knob provision
would be made to receive a disc mount having a (square) hole to suit the spindle;
This mount is attached to the front of the neck of the knob, in any convenient manner,
and generally so done by forming a small rim at its outer diameter which is turned in
over the said front of the knob, and thus firmly secured thereto.
Before this mount is attached to the knob I provide a bent spring which may be
attached to the said mount by rivetting &c., or by allowing a portion of such spring to
enter a small hole in the mount, or a slot or recess may be formed in the said mount
in which the rear part of the spring may lie or in some cases such recess or slot may
be formed in the front of the knob neck: so that in either case when the mount is
attached to the knob, the rear part of the spring is held between such mount and the
front of the knob, while the front end of the spring engages with the serrations or
teeth upon the spindle. A small hole is provided in the neck of the knob through
which a wire or other tool may be passed down, so as to press the spring from the
teeth and disengage the knob therefrom.
By these means I am enabled to provide a fastenings without the usual socket or
arrel mount to which barrel part of the mount, the spring is attached which is
roublesome in manufacture and at the same time produce a neat and efficient fastenings
or such purposes.
Daind this to
CHARLES T. POWELL,
4, Cherry Street, Birmingham,
Applicant's Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Attaching Knobs to their Spindles.
1 JOHN HOWARD CARTLAND of the firm of James Cartland & Son Constitution
Hill, Birmingham Brassfounders, 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 the attachment of metallic and wooden knobs to their
spindles, and has for its object the arrangement and construction of the parts, as
liereinafter explained, in a much more simpler manner than heretofore.
I then
I provide a serrated spindle, having teeth formed along one of its surfaces.
provide a knob of wood or metal, and form therein a hole of a suitable form to receive
the spindle and a spring. At the front of the neck of the knob, provision is made to
receive a disc mount having a square hole to suit the spindle.
This mount is attached to the front of the neck of the knob, by forming it cupwise,
and then turning it over the said front of the knob, and which is thereby firmly secured
to the said knob.
Before the mount is attached to the said knob I provide a bent lamina spring, which
is secured at the front of the knob in the manner hereinafter explained, its front end
engaging with the teeth upon the spindle.
In some cases I may modify the method of providing the hole in the wooden knobs
to receive the spindle and spring, by providing a screw plug, wherein the hole is
formed, for the spindle and spring, which is first inserted in the knob, and then the
front mount put on and turned over as before.
A small hole is provided in the neck of the knob, through which, a wire or other
tool may be passed down, so as to press the spring from the teeth, and disengage the
knob therefrom.
By these means i am enabled to produce a fastening for metallic or wooden knobs,
without the usual socket or barrel mount, (in which the front mount and socket are in
one piece), to which barrel part of the mount, the spring is attached, which is trouble-
some in manufacture, while at the same time I produce a neat and efficient fastening
for such purposes.
In the accompanying drawings Fig. 1 shews a part sectional view of a metallic knob
shewing the spindle hole, spring recess, and front collar or circular projection which
receives the disc mount.
Fig. 2 is a front view of Fig. 1.
Fig. 3 is a cross section of Fig. 1 at A-B.
Fig. 4 is a cross section of Fig. 1 at C-D.
The hole a, is made square to receive the square spindle b, see Fig. 11. In addition
to the hole a, I further cast a recess c, which extends right to the front, which said
front is also recessed as shewn at d. I next provide a lamina spring, as seen in Fig. 7,
at e in side elevation, at et in end elevation, and at e² in plan. This said spring is
then placed in the recess c, as seen in Fig. 11, its inner upturned front end engaging

page_text: with the teeth or serrations in the spindle, while its rear down bent part lies in the
recess d. I then cut out a blank disc Fig. 5, having a central square hole to suit the
spindle b, and further cup it as seen at Fig. 6.
Having now placed the spring into position I pass the cup or disc mount over the
circular collari, Figs. 1 & 11, and by suitable closing tools, or, by what is known as
rolling over," the said mount is closed over the inner side of the collar i; thus firmly
securing the spring e in its working position.
"
In constructing wooden knobs according to this my invention I may either form
the hole and recesses to receive the spindle and also the spring, in a similar manner to
that described for Figs. 1 & 11, that is direct in the wood itself, but generally I should
prefer the modification illustrated in Figs. 8, 9 & 10. I provide a screw plug j,
Fig. 8, a front view of which is shewn in Fig. 9. This I should cast of inferior metal,
or clay such as iron or carthenware, with an external screw thread upon it, and also
mould or cast it to the shape of the hole and recesses to receive the spindle and spring,
similar as formed in the neck of the knob in Fig. 1. A suitable screwed hole is
easily formed in the wooden knob, when in the lathe, into which the plug is
screwed tightly, when the disc mount is passed on and closed over the front of the
knob k, as seen in Fig. 10, (similarly to that of Fig. 11) firmly securing the spring
in position as before.
By these arrangements I provide the hole for the spindle, and recesses for the
spring, and also secure the said spring in its working position in a much more simple
manner than is hitherto done.
As will be seen the spring e may be disengaged from the teeth in the spindle by
means of passing a wire or small tool through the hole 7, and pressing and holding
back the said spring from the teeth, while the knob is withdrawn.
This arrangement may be made at each end of the spindle, or the knob at one end
may be fixed permanently.
I am aware that serrated spindles and a spring somewhat similar to the one I have
shewn and described, and also a hole or recess to receive the spring, in part similar
to that I have shewn, and therefore I do not wish to claim these parts as being
new, but,
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I claim as
my improvements in the method of securing metallic and wooden knobs to their
spindles is
1st. The method of securing the operating spring in the metallic or wooden knobs,
by means of the disc mount substantially as described and illustrated upon the
drawings in Fig. 11.
2nd. The modification as applied to wooden knobs, of the iron or earthenware screw
plug, in combination with the spring e, disc mount h, and knob k, for attachment or
detachment to or from the serrated spindle b, substantially as described and illustrated
in Figs. 8, 9 & 10.
11. a 1