Improvements in or connected with Fastenings for Door Handles and the like.
Year: 1894

page_text: Date of Application, 17th Apr., 1894
· Complete Specification Left, 17th Jan., 1895-4ccepted, 30th Mar., 1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with Fastenings for Door Handles
and the like.
I, JOHN JAMES BAILEY, of Hazelwood, Woodside Park, Finchley, in the
County of Middlesex, Dental Surgeon, do hereby declare the nature of this
invention to be as follows:-
:-
My invention relates to improvements in or connected with fastenings for door
handles and the like by means of which certain advantages are obtained.
A well known form of spindle for door handles consists of a rod of metal, square
in cross section, and threaded at one or both extremities, the said thread being, for
convenience of construction, cut at the angles only so that although a nut or its
equivalent can be screwed on to the said spindle, the latter still retains its more or
less square shape in cross section.
:
In practising my invention I employ a spindle of this form and I place upon it
A washer, hereinafter termed the locking washer, with a square or approximately
square orifice and having a spring catch attached thereto, as for example in a recess
in the said washer. The said spring catch may consist of a flat spring having a
tooth or projection upon the same adapted to engage in the recesses or notches
bereinafter to be mentioned. An extension of the said spring catch passes beyond
the periphery of the said washer for the purpose of enabling the said catch to be
operated as hereinafter described.
Having thrust the spindle through the orifice in the door and having passed the
said locking washer over it, I now take a door handle or knob having a female
thread therein and having radial or other notches cut in the part which comes in
contact with the catch of the said locking washer, and screw it on to the said
spindle. When the knob or handle is screwed down and the notched part comes in
contact with the tooth or projection of the spring catch the said catch rides over
the said notches, in much the same manner as a click rides over the teeth of a
ratchet wheel, when passed in one direction until when screwed up tight the tooth
engages in a notch and locks the parts against backward movement, that is to say
against the unscrewing of the knob or handle, in much the same manner as a click
prevents recession of a ratchet wheel.
The extension of the spring catch passes outwards beyond the periphery of the
locking washer sufficiently far to enable the former to be pressed on one side by the
finger nail or by a coin or kuife blade or the like. When this is done, the aforesaid
tooth or projection is removed from engagement with the notch in which it lies, so
that the handle can now be unscrewed in the usual way, that is to say by turning
the handle in a direction opposite to that in which the handle was screwed on to
the spindle.
I have bereinbefore referred to the spindle as being of square section or
approximately so: but I desire it to be understood that I prefer this form solely
because it prevents the locking washer from turning round thereon, so that a spindle
of any other form in cross section will answer my purpose provided it have an angle
or angles to prevent such turning or be furnished with any of the usual devices
employed by mechanics to prevent a washer or the like from turning upon a
spindle.
In some cases instead of having a locking washer with an orifice of such form
that it cannot turn upon its spindle, I may have a locking washer with a circular

page_text: and threaded orifice so that it can be screwed on to the spindle. In this case I may
provide the locking washer with a recess in which a separate washer with an
angular orifice may lie in a fixed position so as to prevent turning of the locking
washer. Or, in order to accomplish the same result, I may employ one of the well
known projection and recess devices used for locking nuts or the like.
I sometimes insert a threaded washer between the door and the locking washer so
as to prevent jamming when the parts are screwed tightly up; and as an additional
precaution I may provide this washer with a notch or 'notches which will engage
with a projection or projections on the locking washer, or vice versû.
Dated this 16th day of Auril 1894.
J. JAMES BAILEY,
Per J. G. Lorrain, M. Inst: E.E., M. Inst. M.E.,
Norfolk House, Norfolk Street, Strand, London, W.C.,
Chartered Patent Agent.
Improvements in or connected with Fastenings for Door Handles
and the like.
1, JOHN JAMES BAILEY, of Hazelwood, Woodside Park, Finchley, in the
County of Middlesex, Dental Surgeon, 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 :-
In the accompanying sheet of drawings,
Figure 1 is a longitudinal section of one form of my invention.
Figures 2, 3, 4 and 5 are details thereof.
Figure 6 is a longitudinal section of a modified form of my invention.
Figures 7 and 8 are details of the said modified forth.
In the figures similar letters of reference apply to similar or equivalent parts.
A well known form of spindle for door handles consists of a rod of metal, square
in cross section, and threaded at one or both extremities, the said thread being, for
convenience of construction, cut at the angles only, so that although a nut or its
equivalent can be screwed on to the said spindle, the latter still retains its more or
less square shape in cross section.
In the drawings X represents in section a part of the door through which the
spindle of the door handle passes, Y the ornamental washer usually employed and
Z the door knob. A is a spindle of the form above mentioned shown diagram-
matically except at the part a where it will be noticed that the thread is cut only
at the angles. Upon the spindle A is screwed the threaded flanged washer B
(hereinafter termed the back washer), shown in position in Figure 1 and separately
in Figure 2. Upon this spindle is then strung a washer C, hereinafter termed the
locking washer, shown in position in Figure 1 and detached in Figure 3. This
locking washer is perforated by a square or approximately square orifice c' and has
attached to it the spring catch which latter, in this case, lies in the recess c². The
flange of the locking washer is convenient but not essential. The spring catch
consists preferably of a flat spring having a tooth or projection whose use will be
described hereafter. An extension c of the said spring catch passes beyond the
periphery of the locking washer for the purpose of enabling the said spring catch
to be operated as hereinafter described. Z, as has already been stated, is the knob
or handle. To its inner face is attached the dise or ring D shown in its normal
position in Figure 1 and separately in Figures 4 and 5. In Figure 4 the said disc
is shown in front elevation, and in Figure 5 in side elevation as attached to a part
of the shank of the knob. The knob has the usual perforation with a female

page_text: thread cut therein so that it may be screwed on to the spindle, that is to say, into
the position shown in Figure 1. On the front face of the said disc are cut radial
notches or recesses as clearly shown in Figures 4 and 5, which engage with the
spring catch as will be presently described. The disc or ring D is not necessarily
a separate disc or ring, as if the knob is made of sufficiently hard material, as for
When however
example of brass, the notches or recesses may be cut in the same.
the knob is made of wood, glass or the like it is generally convenient to employ a
In such case the
separate disc or ring with the notches or recesses cut thereon.
disc or ring is firmly attached to the knob by screws or other suitable means.
In order to put the several parts hereinbefore mentioned together so as to form a
secure fastening, they are placed in position as shown in Figure 1. Reference
being made to this figure, the spindle with the fast knob thereon is first passed
through the door as from left to right. The ornamental washer Y, if not already
fixed in position, is then passed over the protruding end of the spindle and brought
up flush with the door. Then the back washer B is screwed up close to Y but not
so closely as to prevent free movement. The locking washer C is now passed on
to the spindle and brought up flush with B. The orifice of the said locking
washer being square it cannot turn upon the said spindle, but can only slide to and
fro thereon. The knob is now screwed down so as to bring the notches or recesses
of the disc D upon the knob into engagement with the tooth c of the spring catch.
On screwing on the knob the said notches ride over the tooth until when
screwed up tight the tooth remains tightly engaged in one of the notches and
locks the parts against backward movement, that is to say, against the unscrewing
of the knob, in much the same manner as a click prevents recession of a ratchet
wbeel.
The extension of the spring catch passes outwards beyond the periphery of
the locking washer sufficiently far to enable the former to be pressed to one side by
When this is done, the
the finger nail or by a coin or knife blade or the like.
aforesaid tooth is removed from engagement with the notch in which it lies, so that
the handle can now be unscrewed in the usual way, that is to say, by turning the
knob in a direction opposite to that in which it was screwed on to the spindle.
I have herein before referred to the spindle as being of square section or
approximately so: but I desire it to be understood that I prefer this form solely
because it prevents the locking washer from turning round thereon, so that a
spindle of any other form in cross section will answer my purpose provided it have
an angle or angles to prevent such turning or be furnished with any of the usual
devices employed by mechanics to prevent a washer or the like from turning upon
a spindle.
It is not necessary that the spring catch should be attached to the locking
washer. Thus in the modified form illustrated in Figures 6 and 7 1 show the
spring catch attached to the washer B, and by making the locking washer of small
diameter I enable the spring catch to engage in the notches of the disc D in a
manner similar to that shown in the former case. In this case the locking washer
consists of a simple square washer with a square orifice therein as shown in front
elevation in Figure 8 and in cross section in Figure 6. The back washer is in this
case fitted with a recess 6 into which the locking washer nests. The spring catch
is fitted to the back washer in this case in the same manner as it is in the previous
case to the locking washer. When the parts are screwed up into position as shown
in Figure 6 it will be seen that the tooth of the spring catch engages the notch or
disc D in the same manner as in the case before specified. It will also be seen that
when the parts are locked in position as shown in Figures 1 and 6 there can be no
turning of the knob upon the spindle.
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 is:
1. The new or improved fastening for door handles substantially as set forth.

page_text: 2. The arrangement and combination of parts substantially as set forth with
reference to Figures 1 to 5 inclusive.
3. The arrangement and combination of parts substantially as set forth with
reference to Figures 6, 7 and 8.
4. In a fastening for door handles the combination of a back washer, a locking
washer, a spring catch and a notched part on the knob substantially as set forth.
Dated this 17th day of January 1895.
For the Applicant,
J. G. LORRAIN, M. Inst. E.E., M. Inst. M.E.,
Norfolk House, Norfolk Street, Strand, London, W.C.,
Chartered Patent Agent.
Applicant,
J. G. LORRAIN, M. Inst. E.E., M. Inst. M.E.,
Norfolk House, Norfolk Street, Strand, London, W.C.,
Chartered Patent Agent.