Improvements in Lock-furniture.
Year: 1892

page_text: Date of Application, 26th May, 1892
Complete Specification Left, 24th Feb., 1893—Accepted. 20th May. 1893
PROVISIONAL SPECIFICATION.
Improvements in Lock-furniture.
I, THOMAS LIMOND of 128 High Street, Ayr, Ayrshire, Ironmonger, do
hereby declare the nature of this invention to be as follows:-
This invention relates to lock furniture and it has for its object to improve the
knob fixings.
In constructing the furniture in accordance with my invention the spindle is
made with one or more eccentrics and has also a slot or groove or a number of
holes in it. The knob is made preferably with a corresponding eccentric surface
or surfaces and has or may have a hole bored through its sleeve. The knob is
securely held in place by a pin, screw, or wedge, or by a spring catch or pawl
which may grip
or catch the eccentric or eccentrics of the spindle.
The eccentrics may be so made that the knob will hold tightly in place without
the use of a pin or screw.
The spindle may be shaped, in section, like, either, a double or single cam.
A ferrule or collar may be used with the knob.
Dated this 24th day of May 1892
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.
COMPLETE SPECIFICATION.
Improvements in Lock-furniture.
I, THOMAS LIMOND, of 128 High Street, Ayr, Ayrshire, Ironmonger, 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 lock-furniture and it has for its object to improve the
knob fixings.
In constructing the furniture in accordance with my invention the spindle is
made with one or more eccentrics and has also a slot or groove or a number of
holes in it. The knob is made preferably with a corresponding eccentric surface or
surfaces and has or may have a hole bored through its sleeve. The knob is
securely held in place by a pin, screw, or wedge, or by મ spring catch or pawl
which may grip or catch the eccentric or eccentrics of the spindle.
The eccentrics may be so made that the knob will hold tightly in place without
the use of a pin or screw.
The spindle may be shaped, in section, like, either, a double or single cam.
A ferrule or collar may be used with the knob.
And in order that my said invention may be properly understood, I have
hereunto appended an explanatory sheet of drawings, whereon:-
Fig. 1 is a part perspective view of one form of the lock furniture.
Fig. 2 is a detail part sectional view.
Fig. 3 shows another form of lock furniture.
Fig. 4 is a detail sectional view.
Fig. 5 is a cross section of a double eccentric spindle.
Fig. 6 is a view of a double eccentric collar.
Figs. 7 & 8 are side and end views of a knob.
Referring to the drawings, whereon the same reference letters, wherever
repeated, indicate similar or like parts.

page_text: As will be seen at Fig. 1 the spindle a of the knob k is made with an eccentric b
on it, which fits into the hole d made in the sleeve i of the other knob . The
hole in the sleeve is also made eccentric, as shown. e is a collar, which has a
central eccentrically shaped hole f in it, and slides on the correspondingly
eccentrically shaped part of the spindle a of the knob k. The collar e has also
a hole g in it, into which, when the furniture is fitted together, the pin 4, which is
normally pressed outwards by the spring, passes and holds the knob securely in
position. To fit the knob firmly on to the spindle, all that is required is to
firmly press the knob on the spindle and then turn it sharply to the left, so that
the eccentrics grip or press on one another and prevent the knob being pulled off.
To prevent the knob being turned back again to the right, the collar e is provided.
The hole in this collar is so arranged that when the knob k is turned round
sufficiently towards the left to hold it in place, the spring pin passes through
said hole g and prevents the knob being turned back again towards the right by a
mere opening of the lock or turning of the handle. To take the knob k' off again,
all that is necessary is to pull back the spring pin h out of the hole (1, and then
turn the knob towards the right.
h
If the eccentric faces b, f, d, were made in the opposite direction from those
shown, the handle would be fixed in place by turning it towards the right.
The furniture shown at Figs. 3 and 4, is the same as that at Figs. 1 and 2,
except that instead of the spring pin h, the locking is done by means of a lever m,
which is normally held pressed up by a small spring or a spring cushion of rubber
or the like, (see Fig. 4). The lever m, which catches in a recess on the collar e,
acts in the same manner as the spring pin h. The collar e is shown hollow for the
reception of the part i.
Fig. 5 shows a spindle which is made with two eccentric surfaces o, o'. With
this construction, the handle will always catch in place no matter whether it is
turned to the right or left.
Fig. 6 is a view of a collar e for the double eccentric spindle, Fig. 5.
Figs. 7 and 8 show a method of locking the handle on the eccentric spindle
by means of a wedge p. Instead of using a wedge, a screw or pin may be
employed.
With my invention, the knob is held firmly and securely to 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. In lock furniture, a spindle made with two eccentric surfaces a knob to fit on
the spindle, and a collar for locking the knob on the spindle substantially as
hereinbefore set forth.
2. In lock furniture, the combination with a spindle, having one or more
eccentric surfaces, of a device for locking the handle to the spindle, when fitted in
position, substantially as herein before described with reference to the drawings
annexed.
3. The collar e, substantially as and for the purpose hereinbefore set forth.
Dated this 23rd day of February 1902.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.