AN IMPROVED CONSTRUCTION OF JOINT APPLICABLE TO THE SECURING OF DOOR AND DRAWER KNOBS, WALKING STICK, UMBRELLA, AND OTHER HANDLES, AND TO KINDRED USES
Year: 1874

page_text: LETTERS PATENT to William Clissold, of Cainscross, noar Stroud, in
the County of Gloucester, Engineer, for the Invention of "AN
IMPROVED CONSTRUCTION OF JOINT APPLICABLE TO THE SECURING OF DOOR AND
DRAWER KNOBS, WALKING STICK, UMBRELLA, AND OTHER HANDLES, AND TO
KINDRED USES.”
Sealed the 28th August 1874, and dated the 1st July 1874.
PROVISIONAL SPECIFICATION left by the said William Clissold at the
Office of the Commissioners of Patents, with his Petition, on the
1st July 1874.
I, WILLIAM CLISSOLD, of Cainscross, near Stroud, in the County of
Gloucester, Engineer, do hereby declare the nature of the said Inven-
tion for "AN IMPROVED CONSTRUCTION OF JOINT APPLICABLE TO THE SECURING OF
DOOR AND DRAWER KNOBS, WALKING STICK, UMBRELLA, AND OTHER HANDLES, AND
TO KINDRED USES," to be as follows:-
The chief object of this Invention is to provide by a simple and
inexpensive means a permanent joint suitable for securing door and

page_text: drawer knobs in place, and for attaching the handles of umbrellas and
parasols to their sticks.
In securing umbrella handles I cono the end of the stick and boro a
corresponding conical holo in the handle to be attached. Around the
coned end of the stick I lay a coil of flattened wire after the manner
of the thread of scrows, the edge of the wire projecting outwards from
the stick. Tho forward end of the wire coil I bend down and insert it
into the stick, leaving the other end free. I then secure the stick and
handle together by giving an axial motion to one of them, having first
applied glue to the parts to be brought into contact, and I thus obtain a
permanent joint, the metal coil working itself into the coupled materials.
It will be manifest that this contrivanco is applicable only to such
materials as will yield to the pressure of the coil and permit of its
becoming imbedded therein. All goods, as well as bone, ivory, and horn,
may be thus united, but not metals or wood with metal unless the
latter is yielding or has a yielding material interposed between it and
the material to be attached.
I would remark that it is not necessary in all cases to cone the parts
to be brought into contact, as by a slight modification of the form of
the coil a cylindrical plug may be made to secure itsolf permanently in
a cylindrical hole. Thus in preparing knobs which when not provided
with screw threads are commonly inserted in cylindrical holes, I use a
taper flattened wire for the coil, and thus ensure an easy lead or entrance
into the cylindrical hole.
The Invention, it will be obvious, applies to walking sticks, brooms,
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Clissold in the Great Seal Patent Office on
the 1st January 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM 30
CLISSOLD, of Cainscross, near Stroud, in the County of Gloucester,
Engineer, send greeting.
WHEREAS IIer most Excollent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of July, in the year of our -

page_text: Lord One thousand eight hundred and seventy-four, in the thirty-
eighth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said William Clissold, Her special license
that I, the said William Clissold, my executors, administrators, and
assigns, or such others as I, the said William Olissold, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "AN IMPROVED CON-
STRUCTION OF JOINT APPLICABLE TO THE SECURING OF DOOR AND DRAWER KNOBS,
WALKING STICK, UMBRELLA, AND OTHER HANDLES, AND TO KINDRED Uses,” upon
the condition (amongst others) that I, the said William Clissold, my
exccutors or administrators, by an instrument in writing under my, or
their, or one of their hands and scals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Scal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Clissold, do hereby declare
the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the Drawing hereunto
annexed and to the letters and figures marked thereon (that is to say) :-
:-
The chief object of this Invention is to provide by a simple and
inexpensive means a permanent joint suitable for securing door and
drawer knobs in place, and for attaching the handles of umbrellas and
parasols to their sticks.
In the accompanying Drawing, Figures 1 and 2 shew the means of
applying the Invention to the connecting of umbrella and other sticks
with their handles; and Figures 3 and 4 show its application to the
fastening of door and drawer knobs in their sockets.
By reference to Fig. 1, in which a represents the handle and the
stick, it will be seen that for securing the handle I cone the end of the
stick, and I groove it spirally, as at c, Fig. 2.
attached I bore a corresponding conical hole to
In the handle to be
receive the end of the
stick, and around the coned end of the stick I lay a coil of flattened

page_text: :
wire (after the mannor of the thread of a scrow), the edge of the wire
projecting outwards from the stick. The forward end of the wire coil I
bend down and insert into the stick, as at «, leaving the other end free.
I then secure the stick and handle together by giving an axial motion to
one of them, having first applied glue to the parts to be brought into 5
contact, and I thus obtain a permanent joint, the metal coil working
itself into the coupled materials.
In place of the flattened wire I may sometimes use round wire when
the wood is of such a character as to admit of being readily indented by
the pressure of the coiled wire. It will be manifest that my Invention 1
is mainly applicablo where such materials are used as will yield to the
pressure of the coil and permit of its becoming more or less embedded
therein. All woods, as well as bone, ivory, and horn may be thus
united, but not metals or wood with metal, unless the latter is yielding
or has a yielding material interposed between it and the material to be 1
attached.
I would remark that it is not necessary in all cases to cono the parts
to be brought into contact, as by a slight modification of the form of tho
coil or by varying the depth of the groove for receiving the coil a cylin
drical plug may be made to secure itself permanently in a cylindrical 2
hole; thus in preparing knobs which when not provided with screw
threads are commonly inserted in cylindrical holes I may use a taper
-flattened wire for the coil, and thereby ensure an easy lead or entrance
into the cylindrical hole. When however the taper flattened wire is not
easily procurable I vary the depth of the groove cut in the plug of the 2
knob, and thereby obtain substantially the same result. This is illus-
trated at Figures 3 and 4, the red lines in the latter Figure showing the
conical contour of the wire produced by coiling it around a cylindrical
plug provided with a tapered groove.
I would remark that by inserting the forward end of the wire into the 3
stick or knob, and leaving the other end free, a double advantage is
obtained, for in screwing the knob into its socket the forward end of the
wire will offer no obstruction to its progress, but on attempting to
unscrew the knob the free end of the wire will offer an effectual obstruc-
tion to that operation. It will not therefore be in general necessary to 3
uso glue or other adhesive material for permanently securing knobs and
handles in place.

page_text: The Invention it will be obvious applies to walking sticks, brooms,
and to many articles of cabinet work.
Having now set forth the nature of my Invention of "An Improved
Construction of Joint applicable to the Securing of Door and Drawer
Knobs, Walking Stick, Umbrella, and other Handles, and to Kindred
Uses," and explained the manner of carrying the same into effect, I wish
it to be understood that under the above in part recited Letters Patent I
claim the construction of joint or any mere modification thereof, as and
for the purpose above described.
In witness whereof, I, the said William Clissold, have hereunto
set my hand and seal, the Thirtieth day of December, in tho
year of our Lord One thousand eight hundred and seventy-
four.