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Патент USA US2111254

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M11111 15, 193$“
11. W. TONG
‘
2,111,254
KNOB AND SPINDLE CONNECTING DEVICE
Filed June 12, 1957
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March 15, 1938.
J. w_ TONG '
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2,111,254
KNOB AND SPINDLE CONNECTING DEVICE
Filed June 12, 1,937
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2,111,254
Patented Mar. 15, 1938
UNITED STATES
PATENT OFFICE v
2,111,254
KNOB AND SPINDLE CONNECTING DEVICE
John W. Tong, Buffalo, N. Y., assignor to Helen
M. Tong, Warsaw, N. Y.
Application June 12, 1937, Serial No. 147,952
9 Claims.
(G1. 292-353)
This invention relates to a door lock or latch
and more particularly to improved means for
adjustably and detachably connecting the knob
and the spindle or shaft whereby the mechanism
5 of the lock or latch is operated manually.
In door looks or latches heretofore in common
use the knob and spindle have usually been con
nected by means of a screw mounted on the neck
of the knob and engaging one or another of a
10 plurality of holes formed in a longitudinal row
on the side of the spindle, thereby effecting a
coarse adjustment of the knob and spindle rela
tive to each other, while the ?ne or ?nished ad
justment of these parts relative to each other was
15 effected by the use of one or more compensating
washers which were interposed between these
members in order to take up any remaining slack
and prevent looseness between the same and rat
tling noise when operating the same. This con
20 struction however is unsatisfactory inasmuch as
the screw of such a fastening is ‘often lost and
permits of accidentally pulling the knob off the
spindle and it is also objectional on account of
the liability of injuring the hand or tearing a
25 gloove while operating the knob by hand in case
the fastening screw has become loose and pro
jects outwardly beyond the peripheral surface
of the neck of the door knob.
1
The objects of this invention are to provide
no fastening means for detachably and adjustably
connecting the knob and spindle of a door knob
in a manner which will not only permit of con
veniently and easily adjusting the knob on the
spindle to suit different thicknesses of doors; also
3;, to avoid the possibility of any parts projecting
from the periphery of the doorknob neck which
would be liable to injure the hand or tear a glove;
also to so organize this fastening means that the
knob can be quickly removed from and replaced
an on the spindle when this becomes necessary; also
to dispense with the use of compensating washers
and the inconvenience incident thereto; and also
to provide a spindle and door knob coupling and
adjusting means which are of very simple con
45 struction, capable of being produced at low cost
and not liable to get out of order.
In the accompanying drawings:
Fig. 1 is a fragmentary elevation, partly in
section, of a door having the spindle and knob
50 of its lock or latch coupled by one form of my
improved fastening and adjusting device.
Fig. 2 is a fragmentary horizontal section
taken on line 2-2, Fig. 1.
'Fig. 3 is a vertical section, on an enlarged
55 scale, taken on line 3--3, Fig. 2.
‘
Fig. 4 is a perspective view of the spindle of
the lock or latch.
.
Fig. 5 is a similar view of the coupling member.
Fig. 6 is a perspective view of the door knob
which is constructed in accordance with my in- 5
vention.
Fig. 7 is a View, similar to Fig. 1, showing a
modi?ed form of my invention.
Fig. 8 is a horizontal section taken on line 8-—B,
Fig. '7.
.
10
Fig. 9 is a vertical cross section, on an enlarged
scale, taken on line 9—-9, Fig. 7,
Fig. 10 is a perspective View of the coupling
member shown in Figs. 7, 8 and 9;
Fig, 11 is a similar view of‘ one section of the 15
spindle used in the construction shown in Figs.
7, 8 and 9.
In the following description similar characters
of reference indicate like parts in the several
?gures of the drawings.
20
Referring to Figs. 1-6, the numeral Ill repre
sents the door upon which the door lock or latch
l I is mounted, bath of which may be of any suit
able construction. The improved means for op
erating the mechanism of the lock or latch com- 25
prises a rotary operating shaft or spindle, a
knob'mounted on the end of the spindle and
means for‘ adjustably and detachably connecting
the spindle and knob.
The spindle passes through the door and the 69
internal mechanism of the lock or latch so that
the latter can be operated from the exterior of
the door on either side thereof in the usual
manner. In the construction shown in Figs.
1, 2, and 4 this spindle is made in one piece and 35
of tubular form and square in cross section and
comprises a lower horizontal wall 12, two upright
longitudinal side walls 13 and an upper wall
formed by two ?anges l4 projecting horizontally
inward toward each other from the upper edges 40
of the side walls I3 but separated from each other
by an intervening longitudinal slot l5, as best
shown in Figs. 3 and 4. This spindle is prefer
ably bent out of sheet metal into the above de
scribed shape, but if desired the same may be 45
made of extruded metal or in any other approved
manner.
Although a door knob is usually mounted on
both ends of the spindle which project from the
lock or latch on opposite sides of the same, only 50
one of such knobs is shown in the present case
on the right-hand end of the spindle, as shown
in Figs. 1 and 2, but it is to be understood that
a similar knob may also be mounted on the left
hand end of the spindle. As shown in Figs. 1, 55
2
2,111,254
2, and. 6, this knob comprises a bulb or handle
I6 and a neck I‘! projecting rearwardly from this
bulb toward the lock or latch.
Formed lengthwise in this neck is a socket I8
which is square in cross section and which re
ceives one of the ends of the correspondingly
shaped spindle which latter is of the same ex
ternal shape and dimension so that a compara
tively close fit is produced between the periph
10 ery of the spindle and the bore of the socket
which will avoid any undue looseness between the
parts.
In its upper part the neck of the door knob is
provided with a locking opening I 9 which extends
from the socket therein radially outward to the
periphery of this neck and in the upper side of
this socket the same is provided with a longi
tudinal guide groove 20 extending from the rear
end of the neck to the locking opening I9. The
20 rear side 2| of this locking opening is beveled
or inclined somewhat, as shown in Fig. 1, for a
purpose which will presently appear.
Slidable lengthwise within the bore of the spin
dle is a slide which forms part of a coupling
member whereby the spindle and knob‘ are ad
just-ably connected. This slide is square in cross
section and ?ts into the bore of the spindle so
that the slide is free to move lengthwise in the
spindle but is compelled to turn therewith, these
parts being ?tted together su?iciently close so
they will not rattle. This slide is preferably
constructed in the form of a tube and comprises
an upper horizontal wall 22, two upright side
walls 23 projecting downwardly from opposite
longitudinal edges of the upper wall, and a lower
wall formed by two longitudinal ?anges 24 pro
jecting horizontally toward each other from the
lower edges of the side walls, as best shown in
Figs. 3 and 5.
Catch means are provided for detachably and
adjustably connecting or coupling the spindle
and the knob which means may be varied but
which, as shown in Figs. 1-6 for example, are
constructed as follows:
From the front edge of the upper wall of the
slide a resilient arm 25 projects forwardly in the
tubular spindle and forms part of the coupling
member whereby the spindle and knob are con
nected. A locking ?nger is provided on this arm
50 which is adapted to couple this slide with the
door knob and which consists of an outer push
plate 26 adapted to be arranged in the outer
the other row so that the seats of these two rows
are staggered. In its opposite vertical walls I3,
I3 the operating spindle is provided with two in
ternally threaded openings 30 which are trans
versely in line and either of which is adapted
to be engaged by a clamping screw 3| which has
an inner conical end 32 adapted to engage with
one of the conical seats of the two rows arranged
on opposite sides of the slide.
In assembling the spindle, door knob and ad 10
justing means the slide is ?rst slipped into the
spindle from its outer end until it is between the
openings 30 in the side walls of the spindle and
then the clamping screw is introduced into one
of these openings and its conical inner end is 15
engaged with one of the conical seats 29 of the
slide.
Thereafter this spindle is pushed through
the latch or lock and the door and the neck of the
door knob is slipped onto the end of the spindle
while the spring arm 25 is de?ected inwardly and 20
its locking ?nger is engaged with the guide groove
20. If it is found that the slide has been secured
in the proper position to the spindle the locking
?nger of the coupling device will be moved out~
wardly by resilience of the arm 25 and into the
locking opening I9 when the rear end of the neck
I‘! reaches the outer surface of the door. At this
time a wedging engagement will be produced be
tween the inclined surface 2| of the neck I‘! and
the inclined web 21 of the locking ?nger so that 30
the resilience of the spring arm 25 will constantly
tend to draw the neck of the door knob against
the outer side of the door and thereby prevent
any looseness between these ‘parts and avoid
rattling while operating the door lock or latch. 35
If however it is found that the slide of the
coupling device has been set in too far on the
spindle to permit the locking ?nger to engage
properly with the locking opening I9 in the neck
I'I then the slide is released by withdrawing the 40
clamping screw 3| and reengaging the same with
another of these adjusting seats 29 for the pur
pose of setting the slide farther outward on the
spindle to permit the locking ?nger of the cou
pling device to engage with the locking opening 45
of the door knob. On the other hand if upon
assembling the knob with the spindle it is found
that its rear end does not stand properly rela
tive to the respective side of the door as will
produce a sufficiently close ?t and avoid rattling 50
then the slide may be in a similar manner shifted
farther inwardly on the spindle to take up the
part of the locking opening I9, an inclined web
2‘! connecting the front end of the resilient arm
25 with the rear end of the push plate 26 and
slack which is present between the door knob
neck and the respective side of the door.
adapted to engage with the inclined rear side 2|
seats on its opposite sides and arranging the
of the locking opening I9, and a stiffening lug
seats of these two rows so that each seat of one
row is opposite a blank space between two seats
of the other row it is possible to secure a coarse
adjustment of the slide on the spindle by shift 60
or rib 28 projecting inwardly from the front end
of the push plate 26, as shown in Fig. 1. This
60 slide, resilient arm and coupling ?nger are pref
erably integrally made from a single sheet of
spring metal so that the arm 25 has the neces
sary resilience and the slide and locking ?nger
have the required sti?ness to perform their
65 function.
Adjusting means are provided for holding the
slide in different positions on the spindle for the
purpose of adjusting the knob on the spindle to
suit the thickness of the door. In their pre
ferred construction these adjusting means com
prise two longitudinal rows of seats 29 arranged
on the outer sides of the upright walls 23 of the
slide, each of these seats being of conical form
and the several seats of one row being arranged
75 opposite the spaces between the conical seats of
By providing the coupling slide with adjusting 55
ing the engagement of the clamping screw from
one seat of the same row to another, and it is
also possible to secure a ?ne adjustment between
those parts by shifting the clamping screw 3|
from one screw opening 30 in one side wall of 65
the spindle to the companion opening in the
opposite wall of the spindle and engaging the in
ner conical end of this screw with whatever coni—
cal seat of the respective row is most nearly in
line with the screw to obtain the best positioning 70
of this slide on the spindle in order to bring the
rear end of the door knob neck into the desired
position relative to the respective side of the door
and permit of proper cooperation of the locking 75
2,111,254
3
?nger of the‘ coupling device with the locking
and then the knob and coupling member are
opening of the door knob.
pushed backwardly toward the door as far as
'
By making the cooperating surfaces of the
seats and the clamping screw of conical form
the engagement of this screw with one or the
other of these seats will have a drawing effect
for the purpose of slightly shifting the slide rela
tive to the spindle upon assembling the parts.
Whenever it is necessary to remove the door
knob from the spindle as, for example, when the
lock needs oiling, repairing or adjusting it is
possible to quickly remove the. door knob from
possible. During this backward movement of
the knob and coupling member the adjusting
jaw 42 trips successively over the ratchet teeth
43 and when the knob reaches the end of its
forward movement and bears tight against the
respective side of the door then the same is held
there by the jaw of the slide engaging with the
abrupt side of the last ratchet tooth over which 10
the jaw has tripped during its inward rearward
movement thereby holding the several parts re
the spindle by simply pressing the push plate 26
liably in their operative position.
of the coupling device inwardly a sufficient extent
For dismembering the parts it is only neces
sary to push the ?nger piece or button 26, 21, 15
23 inwardly a sufficient extent to disengage the
same from the opening id in the neck of the
knob, in the manner hereto-fore described, where
upon the several ‘parts may be easily separated
15 to disengage the locking ?nger from the locking
opening l9 and permit the knob to slide with its
guide groove 20 over this ?nger.
.
Reassembling of these‘ parts may be effected
with equal facility by reversing the operation
20 just described.
'
for such purpose as may be desired.
Instead of making the spindle in one piece, as
is customary in some forms of locks and latches,
the same may beiconstructed in two sections 33
each of which is made substantially like the one
25 piece spindle shown in Figs. 1 and 2 and is capa
ble of turning independently of the other section
in the manner well known in some types of locks
and latches which are generally known as “night
latches”. In such two-piece or sectional spindles
30 the inner opposing ends of the same are usually
connected by a swivel which in the present case
consists of a bolt having its shank 34 passing
through an opening 35 formed in the opposing
For the purpose of avoiding the necessity of
making the socket is in the neck of the knob
and the cross section of the spindle exactly ‘of
the same dimensions and still produce a tight
and non-rattling ?t between the same when they
inner edges of two lips 36 projecting transversely
pling the door knob and spindle of the lock or
latch are extremely simple in construction and
owing to the few parts which constitute the same
inward from the rear ends of the side walls I 3
of the respective spindle sections while the head
31 and nut 38 of this bolt bear against the inner
sides of these lips, as shown in Figs. 7 and 8.
In the modi?ed form of the coupling device
shown in Figs. '7, 8, 9, and 10 the slide thereof
comprises a bottom 39 and two upright side
walls 40 rising from the opposite longitudinal
edges of the bottom. A slide of this construction
is adapted to move lengthwise in each section
33 of the divided spindle and the front ends
of the side walls of this slide are spread apart
so that the same flare forwardly, as shown at
M in Figs. 8 and 10, and. thus permit the same
to yieldingly engage the side walls of‘ the re
50 spective spindle section so as to produce a fric
tional ?t between the same in order to avoid
looseness and rattling noise.
At its front edge the bottom of the slide in
the form shown in Figs. 7, 8, and 10 is provided
with a depending adjusting “jaw 42 which is
are assembled, the side walls of the spindle are
spread apart at their. upper edges as shown in
Fig. 11, so that the same diverge or ?are up
wardly and thereby permit of a resilient and
frictional engagement of the same with the ad- °
jacent surfaces of the knob socket l8, as shown
in Fig. 9.
As a whole these means for adjustably cou
it is possible to manufacture them atcompara
tively low cost. Moreover this construction per
mits of quickly assembling and dismembering
the spindle and door knob whenever required,
no compensating washers or adjusting screws
are required, no parts are liable to become loose
or misplaced, and at no time are there any parts
projecting laterally from the neck of the door
knob which might ‘possibly injure the hand of 45
the operator or the gloves which may be worn.
I claim as my invention:—
1. A device of the character described, com
prising an operating spindle, a knob provided
in its neck with a longitudinal socket which 50
receives said spindle and also provided with a
locking opening extending radially from said
socket to the periphery of said neck, a slide
movable lengthwise on said spindle, a spring
arm projecting longitudinally forward from said
adapted to engage with one or another of a _ slide, a locking ?nger projecting laterally from
plurality of adjusting ratchet teeth or serrations
said arm into said locking opening, and means
43 arranged in a longitudinal row on the upper
for securing said slide in different longitudinal
positions on said spindle including a plurality
side of the bottom of the slide and each tooth
60 having an upright rear side and an inclined front
side, as shown in Fig. 7.
‘
In the construction of the coupling device
shown in Figs. '7, 8, and 10, the spring arm Mi,
which carries the locking ?nger 2t, 2?, 28 at its
65 front end, is arranged lengthwise over the upper
open side of the slide 39, 4G and has its. rear
end connected by a bow-shaped web d5 with the
rear end of the slide bottom 39.
When assembling the construction shown in
Figs. 7-11, the slide of the coupling member is
first placed in the outer part of the respective
spindle section, the neck of the knob is then
slipped onto the outer end of this spindle section
and the locking ?nger 26, 21, 28 is engaged
75 with the opening E9 in the neck of the knob,
of conical seats arranged in a longitudinal row 60
on said slide, and an adjusting screw arranged
on said spindle and having a conical inner end
adapted to engage with one or another of said
seats.
2. A device of the character described, com 65
prising an operating spindle, a knob provided in
its neck with a longitudinal socket which receives
said spindle and also provided with a locking
opening extending radially from said socket to
the periphery of said neck, a slide movable length 70
wise on said spindle, a spring arm projecting
longitudinally forward from said slide, a lock
ing ?nger projecting laterally from said arm
into said locking opening, and means for secur
ing said slide in different longitudinal positions 75
4
2,111,254
on said spindle including two longitudinal rows
coupling said spindle and knob including a slide
of seats arranged on opposite sides of said slide,
the seats of one row being arranged opposite
the spaces between the seats of the other row,
catch extending from said slide laterally through
and a fastening screw working in one or another
of the threaded openings on either of the oppo
site sides of said spindle and engaging with one
or another of the seats of either of said rows.
3. A device of the character described, com
10 prising a tubular spindle which is square in cross
section and provided in the central part of one
of its walls with a longitudinal slot, a knob pro
vided in its neck with a longitudinal socket which
receives said spindle and whereby said spindle
adjustable lengthwise in said spindle, a spring
said slot in the spindle and having a ?nger engag
ing with said locking opening, a row of teeth
arranged on the inner side of said spindle, and
a jaw arranged on said slide and adapted to
engage with one or another of said teeth.
7. A device of the character described, com~
prising a tubular spindle having a longitudinal
slot, a knob slidable lengthwise on said spindle
and having a locking opening, and means for
coupling said spindle and knob including a slide
adjustable lengthwise in said spindle and hav
15 and knob may slide lengthwise relative to one
ing a bottom and two longitudinal side walls, a
another, and said neck being provided with a
locking opening extending from said socket to
spring catch projecting through said slot and
the periphery of said neck, a slide of square cross
end of said bottom and having its opposite end
section adjustable lengthwise in said spindle, a
provided with a ?nger engaging with said look
ing opening, an adjusting jaw arranged on the 20
opposite end of said bottom, and a longitudinal
20 spring arm projecting lengthwise from the front
end of said slide, a locking ?nger projecting lat
erally from the front end of said arm through
said slot and into said opening, and a fastening
screw mounted on the spindle and engaging the
25 side of said slide.
4. A device of the character described, com
prising a tubular spindle which is square in cross
section and provided in the central part of one
of its walls with a longitudinal slot, a knob pro
30 vided in its neck with a longitudinal socket which
row of serrations or ratchet teeth arranged on
the inner side of said slide and engaged by said
jaw.
8. A device of the character described, com 25
prising a tubular spindle having a longitudinal
slot, a knob slidable lengthwise on said spindle
and having a locking opening, and means for
coupling said spindle and knob including a slide
adjustable lengthwise in said spindle and having 30
receives said spindle and whereby said spindle
a bottom and two longitudinal side walls, a spring
and knob may slide lengthwise relative to one
catch projecting through said slot and having
another, and said neck being provided with a
locking opening extending from said socket to
35 the periphery of said neck, a slide of square cross
section adjustable lengthwise in said spindle, a
spring arm projecting lengthwise from the front
end of said slide, a locking ?nger projecting lat
erally from the front end of said arm through
said slot and into said opening, and a fastening
screw mounted on the spindle and engaging the
side of said slide, said slide arm and ?nger being
formed integrally from sheet metal and said slide
having a top wall, two side walls projecting down
45 wardly from opposite edges of the top wall and
a bottom wall formed by two flanges projecting
toward each other from the lower edges of the
side walls, said arm being formed on the top wall
of the slide, and said ?nger being formed on the
50 outer end of said arm.
5. A device of the character described, com
prising a tubular spindle having a longitudinal
slot, a knob slidable lengthwise on said spindle
and having a locking opening, and means for
55 coupling said spindle and knob including a slide
adjustable lengthwise in said spindle and a spring
catch extending from said slide laterally through
said slot in the spindle, and having a ?nger engag
ing with said locking opening.
60
having an arm connected at one end with one
6. A device of the character described, com
prising a tubular spindle having a longitudinal
slot, a knob slidable lengthwise on said spindle
and having a locking opening, and means for
an arm connected at one end with one end of
said bottom and having its opposite end provided
with a finger engaging with said locking opening, 35
an adjusting jaw arranged on the opposite end
of said bottom, and a longitudinal row of serra
tions or ratchet teeth arranged on the inner side
of said slide and engaged by said jaw, said slide
having its side walls diverging from its bottom 40
and yieldingly engaging the free edges with the
adjacent inner sides of the spindle.
9. A device of the character described, com
prising a tubular spindle having a longitudinal
slot, a knob slidable lengthwise on said spindle 45
and having a locking opening, and means for
coupling said spindle and knob including a slide
adjustable lengthwise in said spindle and having
a bottom and two longitudinal side walls, a spring
catch projecting through said slot and having an 60
arm connected at one end with one end of said
bottom and having its opposite end provided with
a ?nger engaging with said locking opening, an
adjusting jaw arranged on the opposite end of
said bottom, and a longitudinal row of serrations
or ratchet teeth arranged on the inner side of
said slide and engaged by said jaw, said spindle
having its side walls ?aring relative to the slot
thereof and the free edges of its walls bearing
frictionally against the adjacent surfaces of the 60
socket in said knob.
JOHN W. TONG.
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