Improvements for Securing Knobs to Spindles of Locks and Latches.
Year: 1892

page_text: Date of Application, 17th Feb., 1892
Complete Specification Left, 6th Apr., 1892-Accepted, 14th May, 1892
PROVISIONAL SPECIFICATION.
Improvements for Securing Knobs to Spindles of Locks and
Latches.
WALTER YATES Builder 56 Kirkmanshulme Lane Longsight Manchester, do.
hereby declare the nature of this invention to be as follows:-
To provide a ready means of fixing, adjusting and more effectually securing knobs
to the spindles of locks and latches: so as to prevent the frequent tendency of
working loose and coming off; also to facilitate the means of replacing, and fixing:
securely new knobs on old spindles.
The means by which I propose to attain this object is as follows, viz.:
On one of the four sides of the spindle hole in the collar of the knob, I
provide room for a flat spring and the working thereof, on one end of this spring
is formed a tooth or ratchet catch, the other end of this spring is revitted either to
the inside or to the collar end of the knob, leaving just nett room for the spindle to.
pass by or through into the knob; the spring is adjusted so as to press the tooth or
catch into notches which are formed in the spindle at distances as convenience may
require to suit the thickness of the doors, thus when the tooth or catch is pressed
down into the notches, it prevents the knob from slipping backwards and holds it
securely on the spindle.
To release the knob, so that it may be taken off, a small hole is provided in the
collar of the knob at the back of the spring and a small eyelet is revitted in
the spring so as to enable it to be pulled back and release the tooth out of
the ratchet and thus allow the knob to be drawn off.
In fixing these knobs on to old spindles it only requires the distance to be ascer-
tained from the face of the rose to where the tooth or catch should rest in the
spindle and file in a notch for the catch accordingly.
Dated this 15th day of February 1892.
WALTER YATES.
COMPLETE SPECIFICATION.
Improvements for Securing Knobs to Spindles of Locks and
Latches.
I, WALTER YATES Builder 56 Kirkmanshulme Lane Longsight near Manchester
in the County of Lancaster do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
The object of this invention is to provide a more convenient and effectual means.
of securing knobs to spindles of locks and latches, and lessen the liability to work
loose and come off, also to facilitate the fixing more securely than hitherto of new
knobs on to old spindles.
In order to enable it to be clearly understood, the means by which the same may
be performed, I have annexed hereto a sheet of drawings, illustrative thereof, and
have marked the same with figures and letters of reference corresponding with
those in the following explanation thereof.
Fig. 1. in the annexed drawing shows a longtitudinal section through the centre of
a wood knob (other modifications will be required on the outside of the metal bush y
for fixing in porcelain or glass, but in which 1 make no claim) with metal bush
and spindle with my improvements as applied thereto.
Fig. 2. shows section same as Fig. 1. without the spindle.
g

page_text: Fig. 3. shows longtitudinal section through the centre of a hollow brass or metal
knob, with the spring rivetted to the inside end of the collar of the knob.
Fig. 4. shows the transverse section through the knob on lines A-B Fig. 1.
Fig. 5. shows a face view at the rose end of the knob.
This invention consists in providing room a Fig. 1. on one side in the spindle
hole, bush, or neck of the knob, so as to allow of a small flat spring 6 Fig. 2. being
fixed and working therein. On the flat spring at one end a tooth or catch c Fig. 2.
splayed or bevelled on the outer end so as to allow of its sliding along on to a
serrated ratchet formed on one or more sides of the spindle d Fig. 1. so that when
the knob is pushed home against the rose on the door, the tooth or catch falls into
its normal position, with the spring lying close to and flat along the spindle pressing
the catch down and clutching into one of the notches in the spindle d, thus securely
preventing the knob from sliding backwards and coming off, unless it is released by
pulling back the spring catch c, for which purpose an eylet e, Fig. 1. is rivetted in
the back of the spring, and a hole is provided in the neck of the knob so that the
catch may be drawn back by the means of a small hook put through the eylet.
The metal of the spring 6 fills the space provided for it in the bush or spindle
hole, and forms one side of the bush as show on section Fig. 4. The end of the
spring is rivetted fast to the metal bush g, as shown at f, Figs. 2 and 3.
In fixing these knobs on to old spindles, it only requires the distance to be ascer-
tained from the face of the rose on the door to where the tooth or catch should rest
in the spindle, and file a notch in the spindle for the catch accordingly.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed I declair that what I
claim is :
1st. The position of the flat (or other section) spring b as fixed and confined in
the bush or spindle hole, lying close to and flat along the spindle, to lessen the
liability of the spring breaking or buckling, and which provides a strong tension
resistance along the spindle when the knob is being pulled.
2nd. The raised eylet in the back of the spring for the purpose of enabling the
spring to be pulled back to release the tooth or catch out of the notches so that the
knob may be drawn off the spindle.
"
1 1000