ATTACHING DOOR KNOBS TO THEIR SPINDLES"
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said Albert Varah at the Office
of the Commissioners of Patents on the 3rd March 1883.
ALBERT VARAH of Sheffield in the County of York
ATTACHING DOOR KNOBS TO THEIR SPINDLES"
* IMPROVEMENTS IN
My invention relates to improvements in attaching Door Knobs to their Spindles
in a secure, and substantial manner and without the use of set screws.
In carrying my invention into practice I make the spindle square by preference
and on one end I secure the fixed knob, the other end of the spindle is provided
with a screwthread, upon which I screw a disc or collar, with one or more pins or
studs projecting from its outer face, four being found a convenient number. A
screwthread is also formed upon the periphery of the disc or collar. The loose or
adjustable knob is made with a central square hole to receive the end of the
spindle, the face of the knob being protected by a metallic plate, through which a
number of holes corresponding with the pins or studs on the disc or collar, are
made penetrating into the body of the knob. A metallic ring or ferrule tapped
inside with a thread corresponding with that on the periphery of the disc or
collar, is free to revolve round the metallic plate before mentioned as being
secured to the face of the loose knob; but by being contracted behind, it cannot be
withdrawn from the knob
To fix the spindle and knobs to a door, the screwed end of the spindle is passed
through the door in the usual manner, and the disc or collar is screwed upon the
spindle to the desired position. The loose knob is then passed upon the spindle,
until the projecting pins on the disc or collar pass into the corresponding holes
formed in the face of the knob, and the face of the knob touches that of the disc.
The metallic ring or ferrule is then screwed upon the periphery of the disc or
collar, thus securing all the parts together in a substantial manner

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Albert Varah in the Great Seal Patent Office on the 1st September
1883.
ALBERT VARAH 'of Sheffield in the county of York
ATTACHING DOOR KNOBS TO THEIR SPINDLES
"
"IMPROVEMENTS IN
My invention relates to improvements in attaching door knobs to their spindles
in a secure and substantial manner, and without the use of the usual set-screws,
and in order that my invention may be clearly understood, I shall refer to the
drawings which illustrate my invention, simply premising that the same letters of
reference found in the different figures indicate the same parts.
Fig. 1, represents the fixed knob and spindle, with the disc or collar.
Fig. 2, represents the loose knob shown in section.
Fig. 3, shows a method of securing the screwed ring.
In carrying my invention into practice I make the spindle A square (by
preference) and on one end I secure the fixed knob B the other end of the spindle
being provided with a screw-thread, upon which I screw a disc or collar C, having
one or more pins or studs D, projecting from its outer face; four being found a
convenient number for the purpose. The loose or adjustable knob E (Fig. 2) is made
with a central square hole F to receive the screwed end of the spindle, the face of
the knob being protected by a metallic plate G, through which a number of
holes H, corresponding with the pins or studs D, are made, penetrating into the
body of the knob. A metallic ring or ferrule I, tapped in 'the inside and corre-
sponding with the thread on the periphery of the disc C, is made in its configuration
so that it is free to revolve on the metallic plate G, before mentioned as being
secured to the face of the knob E, but being contracted over the reduced or
smaller portion of the disc, it is impossible to withdraw it from the knob. When
fixing the spindle and knobs to a door, the loose knob is removed, and the spindle
passed through the door in the usual manner, the disc or collar C is then screwed
upon the spindle to the desired position. The loose knob E is then passed on the
spindle until the projecting pins D on the disc pass into the corresponding holes H,
and finally the ring or ferrule I is screwed upon the periphery of the disc until the
faces of the parts G and C touch, thus securing the various parts together in a
substantial manner. As a further security against any chance of the ring I
becoming loose or unscrewed, I may, if desirable, cut a small alot or notch in the
edge of the ring as shown at K, Fig. 3, so as to allow a spring retaining catch L,
to enter and so prevent it turning back and becoming loose.
Having thus described and particularly ascertained the nature of my said
invention and the manner in which it is or may be put into practice, I would
observe in conclusion that what I consider to be novel and original and therefore
claim as the invention secured to me by the herein before in part recited Letters
Patent is:
The method of attaching knobs to spindles substantially as hereinbefore described,
and illustrated.
In witness whereof I the said Albert Varah have hereunto set my hand and
seal this twenty ninth day of August in the year of our Lord One thousand
aight hundund and night.. then