Year: 1888

page_text: Date of Application, 6th Feb., 1888
Complete Specification Left, 5th Nov., 1888
Complete Specification Accepted, 7th Dec., 1888
I, ARTHUR ILLIDGE, of 16 Church Street, Wolverhampton, in the County of Stafford,
brass founder, do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved construction of indicating apparatus, employed
with a door fastening, in which a part is used which is turned axially by means of a
knob, handle, lover, or analogous part, whereby any desired degree of movement may
be given to the indicator disc or faco in relation to the angular distance through which
the knob, handle, lever, or analogous part, aforesaid, is turned; and, also, to a special
construction of sliding-bolt fastening operated by a quarter turn of the knob, handle,
or analogous part, specially for employment in combination with such indicating
apparatus, but which may be employed with other indicating apparatus which is properly
operated by a quarter turn of the knob, handle, or analogous part, or may be employed
as a simple fastening.
An indicating apparatus, constructed according to this invention, has a spindle which
is operated from the inside of the loor (or in some cases, from the outside), and by
which or by the knob, handle, lever, or analogous part of which, the bolt or latch of
the fastening is operated, or a stop-piece of the character described in my patent speci-
fication No. 15,386 of 1886, with reference to figures 3 and 4 of the drawings there-
with, as employed in connection with the bolt. is operated. A pulley, friction or spur
wheel, or corresponding segment, is fixed on the spindle and drives a corresponding
pulley, wheel or segment on the axis of the indicator disc, or on the axis of a cam
which operates a sliding indicator of the character described in my patent specification
No. 1024 of 1887, with reference to figures 20 to 24 inclusive of the drawings there-
with. When pulleys (or segments thereof) are employed a rubber or other band,
cord or chain, is used as the driving medium; and when friction wheels (or segments
thereof) are employed their peripheries may be covered with rubber banding or
analogous matter to give the necessary frictional hold. It will be obvions that by
properly proportioning the pulleys. wheels or segments, any desired degree of turn
may be given to the axis of the indicator or of the cam which operates it, in relation
to the degree of turn given to the spindle. If it is desired that the spindle shall be

page_text: capable of being operated by means of a key from the outside of the door, in such a
manner, for instance, as is described in my aforesaid patent specification No. 15,386
of 1886 with reference to figures 5, 6 and 7 of. the drawings therewith, the axis of
such spindle may be kept sufficiently clear of the indicator to admit thereof, by a
suitable proportioning of the mechanism, or the spindle of an indicator disc may of
course be operated by the key direct as described in such specification.
A sliding-bolt fastening, constructed according to this invention, for employment
with the indicating apparatus above described, or for employment with other indicating
apparatus which is properly operated by a quarter turn of the knob, handle, or
analogous part, by which the fastening is operated, is provided with a quarter-turn
cam of considerable projection which is mounted on the common axis of the handle
and of the spindle which operates the indicator. A bearing surface is formed on the
tail of the bolt against which the. Zam bears in shooting the bolt forward, and such
surface is, preferably, formed convex towards the cam. A lug is formed on the upper
or lower side of the tail of the bolt against which the cam bears to draw back the bolt,
and the distance between the bearing surface, aforesaid, and the lug is only just
sufficient to allow of the proper movement of the cam between them, and the cam is
shaped to work with as little play as possible. A long throw of the bolt may thus be
given by a quarter turn of the cam. The fastening may be made reversible by forming
the tail of the bolt the same, but reversed, shape above and below the centre, at the
part thereof which goars with the cam, and providing a set scrow which when in
place on one side of the centre of the bolt tail prevents the cam from being turned
out of its forward position in one direction, and which may be reversed to the other
side of the bolt tail and so prevent the cam being turned out of its forward position in
the opposite direction. In this case the bearing surface, aforesaid, extends both above
and below the centre of the tail, and a second lug is formed or fixed on the opposite
side of the tail to that in which the lug above described occurs. The sliding-bolt
fastening above described may, of course, be employed as a simple fastening, that is
independently of any indicating mechanism.
3000

page_text: Improvements in Indicator and other Fastenings for Doors.
I, ARTHUR ILLIDGE, of 16 Church Street, Wolverhampton in the County of
Stafford, brass founder, 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 improved indicating apparatus, employed with a door
fastening in, or in connection with, which a part is used which is turned or caused to
turn axially by means of a knob, handle, lever or analogous part, whereby any desired
degree of movement may be given to the indicator disc or face in relation to the
angular distance through which the knob, handle, lover, or analogous pari, aforesaid,
or the part which is caused to turn thereby, is turned; and, also, to a special
construction of sliding-bolt fastening operated by a quarter (or approximately a
quarter) turn of a knob, handle, or analogous part, for employment in combination
with such indicating apparatus, or with other indicating apparatus which is properly
operated by such a turn of the knob, handle, or analogous part, or as a simple
fastening.
An indicating apparatus constructed according to this invention, and having a
circular indicating disc, is illustrated by figures 1, 2 and 3 of the drawings herewith,
of which figure 1 is a vertical section through the complete apparatus; figure 2 is a
front or inside elevation of the cap-plate or back of the case shewing also means,
which form the special feature of the invention, by which a greater angular or axial
movement is imparted to the indicator disc 'than is given to the knob, handle, lever,
or analogous part by which the fastening is operated or than is given to a spindle or
analogous part which is caused to be operated by the movement of such knob, handle,
lever or analogous part; figure 3 is a corresponding view to figure 2, but shews also
the indicator disc in position in front of the cap-plate. A spindle a, having a square
hole therethrough into which fits the end of a spindle which is operated or caused to
be operated by the knob, handle, lever, or analogous part by which the fastening
itself is operated, is carried, so as to be capable of turning, within the cap-plate bof
the case A. On the part of the spindle a which is within the case is mounted a
friction wheel c, and upon the axis of the disc d is mounted, so as to gear with or be
operated by the wheel c, a friction wheel e of less diameter than the wheel c.
wheel is formed with, or firmly fixed to, the disc. It will thus be seen that upon
turning the spindle a the disc d is turned a greater distance. By making the wheel e
half the diameter of the wheel c, in the case of a fastening which is operated by a
quarter turn of a knob, handle, lever, or analogous part, and which gives the same
degree of turn to the spindle a, the disc will be moved a half revolution, that is
sufficient to bring a word which extends around half the disc (or approximately so)
from the lower half of the case into the upper half so as to shew through a slot f of the
usual description. A stud g, fixed to the cap-plate band projecting into a curved
slot formed through the disc, forms a stop, in either direction, to the movement of
The

page_text: the disc. To give the necessary frictional bite between the wheels cand e it is
convenient to surround the wheel c with a ring or band of indiarubber or analogous
material. To ensure the hold of the ring it is advisable to roughen the periphery
of the wheel c; and it is advisable also to roughen the periphery of the wheel e.
A spur wheel and pinion may, of course, be employed in lieu of the friction wheels c
and e; and segments may be employed in lieu of full wheels, if preferred, as only a
part of the periphery of each wheel comes into gear.
The indicator above described may be employed in combination with any fastening
which has a spindle or corresponding part which is turned, or caused to be turned,
an angular distance less than a half turn by means of a knob, handle, lever, or
analogous part, or which may be fitted with such spindle or corresponding part. It
may, for instance, be used in combination with such fastenings as are illustrated by
figures 11 and 14 of the drawings accompanying my patent specification Number 1024
of 1887, or with such a fastening as is illustrated by figures 3 and 4 of the drawings
accompanying my patent specification Number 15,386 of 1886, in which latter case
the spindle H of such figures operates the indicator spindle a.
Figures 4 and 5, which correspond respectively to figures 1 and 2, illustrate a
modification in which the wheel e is operated from the wheel c by the aid of a band,
cord, or chain, j. For this purpose it is convenient to use an indiarubber band.
Figure 6 corresponds to figure 3, and illustrates a modification suitable for
employment when it is desired that the fastening may be operated from the outside
in addition to being capable of being operated from the inside, in such a manner, for
instance, as is described in the paragraph commencing line 50 on page 4 of my said
patent specification Number 15,386 of 1886. In this case it is convenient to form the
wheel e as a spur pinion and to mount a toothed segment c on the spindle a, and such
pinion and segment are of such proportions as to bring the spindle a in position
clear of the periphery of the disc b so that the key by which the spindle is turned
from the outside may be passed into the case clear of the disc. In this modification
it is convenient to employ an oval or oblong caso, as shewn. The segment may, of
course, be constructed to drive the wheel e by friction instead of hy tooth-gear, if
preferred.
The indicator disc may, however, be operated from the outside direct by means of
a key inserted into a suitably-shaped opening formed down the axis on which the
disc turns, or over a suitably-shaped part concentric with such axis, as described in
my said patent specification Number 15,386 of 1886 with reference to figures 5, 6
and 7 of the drawings therewith, in which case, of course, it is not necessary to carry
the axis of the spindle a beyond the periphery of the disc, and therefore either of the
modifications above described may be employed.
Figure 7 illustrates in back elevation, with the cap-plate of the indicator case
removed, a modification whereby the invention is adapted for operating a sliding
indicator of the character described with reference to figures 20 to 24 inclusive of
the drawings accompanying my said patent specification Number 1,024 of 1887.
This modification is for employment more especially with a sliding-bolt which is
capable of being moved forward and hackward from the inside of the apartment,
by means of a handle, in any ordinary or convenient manner, for a part of its shoot to
fasten and unfasten the door, and of being moved the entire length of its shoot, by
means of a key from the outside, to lock and unlock it, such for instance as is
described with reference to figures 17. 18 and 19 of the drawings accompanying
my said patent specification Number 1,024 of 1887. In this modification, as in
the indicator described in such specification and shown by figure 18 of the
drawings therewith, as employed with the fastening illustrated by the said figures 17,
18 and 19, there are three main positions of the index plate and the face of such
plate is markod to shew the three different indications through a slit in the face
of the case, such as, for example, with the words “ vacant," "engaged," "locked."
The index plate B is raised by means of an arm or cam k mounted to turn on an
axis k, and the part of such arm which surrounds the axis is formed with teeth, us
shewn, so as to act as a small segment or wheel e which corresponds to the wheel or

page_text: which
pinion smilarly lettered in the previously described modifications. A wheel
gears with the segment or wheel e, is mounted within the indicator case and is turned
by means of a spindle a which has upon its outer end a short arm or lever a¹, see
figure 7 which is a flat or side view, of the hinder end of the sliding-bolt L shewn
by figure 17, of the drawings accompanying my said specification Number 1,024 of
1887, and shows also the inner end of the spindle a with the arm a¹ projecting
outwards therefrom. The outer or lower end of the arm a' gears within a notch
formed therefor in the bolt tail, as shewn. The diameter of the wheel c and of the
segment or wheel e are so proportioned in relation to the length of the arm a¹ that as
the sliding-bolt L is shot forwards from the inside of the apartinent the arm k is raised
from its lowest position, indicated by broken lines figure 7, into its intermediate
position, also indicated by broken lines, whereby the sliding-plate B is raised from its
lowest position, indicated by the broken line c' c¹, into its intermediate position
indicated by the broken line d'; and as the bolt is shot forwards by means of a key
for the remaining length of its shoot the arm passes from its intermediate position into
its highest or upward position, shewn by full lines, thereby raising the index plate B
into its top position. It will thus be seen that with a comparatively short stroke of the
sliding-bolt L, sufficient only to turn the arm a' a quarter turn, or even less as shewn,
a considerable vertical movement may be imparted to the index plate B. The index
plate may rest, in its bottom: position, upon studs e¹ e².
A "cam-action" sliding-belt fastening, constructed according to this invention, is
illustrated by figures 8, 9 and 10. These figures shew the application of this part of
the invention to a flush bolt, but this part of the invention is of course applicable also,
as will be obvious, to a rim bolt or other bolt of the same character. Figures 8 and 9
are back elevations of the fastening, but in figure 8 the bolt is shewn to be shot out,
and in figure 9 to be drawn back. Figure 10 is a sectional plan of the fastening,
with the bolt shot out as in figure 8, and shows also, in sectional plan, a convenient
form of indicating apparatus (which will be presently described) as employed
therewith. The bolt C is shot forward by means of a cam 1 bearing against a
shoulder or surface on the bolt tail, and is drawn back by such cam being turned
backwards against a lug m on the bolt tail in such position in relation to the shoulder /,
as shewn, as will just allow the cam D to operate between such shoulder and lug as
it is turned backwards. When the bolt is shot out the cam D is at its full throw
forwards, or approximately so, so that it will not turn if an attempt is made to force
back the bolt, but will form a secure stop or lock thereagainst; and the cam is formed
considerably narrower than its length so that as it is turned a quarter (or approxi-
mately a quarter) turn the bolt is moved back a considerable distance. The operating
side n of the cam is, preferably, hollowed in, as shewn, to give a smoother action
against the lug m. The shoulder is formed, preferably, to a concave curve, as shewn,
to give a smoother action in shooting forward the bolt and to enable the lug m to be
placed further forwards than could otherwise be the case. A stud o, on the opposite
side of the bolt tail to that on which the lug m occurs, acts as a stop to the cam D
in its horizontal or forward position. This fastening may be made reversable by
carrying the shoulder right across the bolt tail, as shewn, and providing a lug m³ on
the opposite side of the bolt tail to that on which the lug m occurs; in this case the
studo is formed as a set-screw so that it may be readily removed and screwed into a
hole o' on the opposite side of the bolt tail.
The sliding-bolt fastening above described may be employed as a simple fastening,
that is independently of any indicating mechanism, or it may be employed with
indicating apparatus of the character above described, or with other indicating
apparatus which is properly operated by a quarter (or approximately a quarter) turn
of the knob, handle, or analogous part E. A convenient indicating apparatus for
employment with this fastening is shewn, as before stated, in section by figure 10;
and such apparatus is shewn also in back elevation, with the cap-plate of the case
removed, by figure 11. A spindle F which is turned by the knob or handle E enters
at its outer end within the hollow axis of a spindle a which carries an arm p which
raises the index plate q by bearing against a shoulder q¹ thereon. As the arm pis

page_text: turned down the index plate falls by its own weight, but in case it sticks it is
drawn down by the arm p pressing upon a stud projecting from such plate. In
order to make the action of the index reversable, a second stud is carried to
project from the plate on the opposite side of the vertical centre thereof to that on
which the stud » occurs. The part of the spindle F which is within the hollow
spindle a is, of course, square or of analogous shape so that it turns the spindle a
as it is itself turned.
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. In an indicator fastening for a door, a wheel, pulley, or segment, operated by a
spindle or analogous part, and gearing with a wheel, pulley, or segmont on the axis of
an indicator disc or on the axis of a cam or arm which operates a sliding index plate,
substantially as described, for the purpose set forth.
2. The several modifications, substantially as described with reference to the
drawings herowith, by which the axial movement of an indicator disc or of a cam
or arm operating a sliding index plate is greater than that of the spindle or
analogous part employed to transunit the movement of the knob, handle, lever or
analogous part of a door fastening to such disc, cam or arm for the purpose set
forth.
3. A sliding-bolt door fastening capable of being operated by a quarter (or
approximately a quarter) turn of a knob, bandle, or analogous part, in which a cam
or arm is employed formed considerably narrower than its length and which operates
against a shoulder on the bolt tail in shooting forward the bolt and securely holds
such bolt in its forward or locked position, and which oporates against a lug on one
side of the bolt tail in drawing back the bolt, the lug being in such position in relation
to the shoulder as to just admit of the arm or can freely operating between such
shoulder and lug, substantially as described.
4. The means by which a sliding-bolt door fastening of the character referred
to in the last precoding claim is made reversible or double-handed, substantially as
described.
5. The movable stud or stop o in combination with holes o' one on each side of the
centre of the bolt-tail, substantially as described, for the purpose set forth.
6. The sliding-bolt door fastening substantially as described with reference to
figures 8, 9 and 10 of the drawings herewith, for the purpose set forth.
7. The general arrangement and combination of parts constituting an indicator door
fastening substantially as described, and shewn by figures 8 to 11 inclusive.
Dated this 3rd day of November 1888.
STEPHEN WATKINS,
Wolverhampton and Walsall,
Agent for the Applicant.