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Патент USA US2131458

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Sept. 27, 1938.
R, M. TURNER
/
2,131,458
‘ CONTROL MEANS FOR SLIDING BOLT DOOR (PATCHES
Filed May '21., 1936
2 Sheets-Sheet 1
INVENTOE'
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(33
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ATT‘Y.
Sept» 27, 1938.
R. M. TURNER-
2,131,458
CONTROL MEANS FOR SLIDING BOLT DOOR CATCHES
Filed May 21; 1956
2’ Sheets-Sheet 2
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Patented Sept. 27, 1938
2,131,458
UNITED STATES PATENT OFFICE
CONTROL‘IVLEANS FOR SLIDING BOLT‘ DOOR
'
OATCHES
"
Richard Murray Turner, Kew, vAustralia
Application May 21, 1936, Serial No. 80,94
‘ In Australia July 5,1935
'
3 Claims. (01. 2792-1675)
This invention relates to means which are
adapted to be actuated by push-pull handles to
retract catches of sliding bolt type, which may
be’ combined with lock mechanism and which is
5 usable on doors and other hinged structures.
One object of this invention is to provide sim-'
ple, e?ective, durable, and inexpensive means to
retract sliding bolts of the type indicated.
Another object of this invention is to provide
10 bolt retracting means which may be combined
with lock mechanism of known construction
without materially altering the construction of
such mechanism.
Control means for catches of sliding bolt type,
15 according to this invention, is characterized by a
longitudinally slidable actuating bar or rod which
is so constructed that when it is moved from a
normal position it retracts a slidable bolt which
is arranged at right angles to it or it actuates
20 means to retract such a bolt.
In one embodiment of this invention the actu
ating bar or rod is so formed that when moved
longitudinally it rotates a rollback which in turn
retracts a slidable catch or bolt. Preferably the
25 said bar or rod is a ?at strip which is twistedv
helically and which slidably engages a slot of
complementary shape in the boss of the rollback.
In a modi?ed construction the bar may be of
other suitable cross section or be screw threaded
30 and the tumbler is provided with a complemen
Fig. '7 is a detail perspective view of rollback
elements formed of sheet' metal.
'
Fig. 8 is a perspective view of a rollback com
prising elements as shown in Fig. 7 , in assembled
position.
5
Fig. 9 is an end view of. a lock having modi?ed
actuating means.
1
Fig. 10 is a side view at right angles to Fig. 9,
with parts broken away to disclosethe. sliding
bolt and parts associated therewith.
10
Fig. 11 is a sectional plan of the parts in Figs.
9 and 10.
I
In the arrangement illustrated in Figs. 1 to 6,
I5 is a sliding bolt which is actuated toward its
normal projecting position by a spring I6 in 15
known manner and which is retractable by a
partially rotatable rollback II, also in known
manner.
An actuating rod [9 which is helically twisted
at I9a engages a suitably shaped slot I 8 in the 20
boss Ila of the rollback IT. The respective ends
of rod H) are pivotally connected to lever handles ‘
26a, 20'’ by pins 22 each of which is located in a
convenient hole 22*‘. There may be a plurality
of holes 22a to facilitate ?tting to doors of dif
ferent thickness- The upper end of each handle
20a, 20b is supported on a pivot pin 20° which en
gages a lug 2|a on a plate 2| which is ?xed to a
face of the door D.
>
The lower part of each handle. 20*‘, 20b is off 30
set at 20°‘ to facilitate access to a keyhole 20e
tary hole.
In a further modi?ed arrangement part of the ' that is associated with lock mechanism (not
bar or rod is inclined or wedge-shaped to co-act shown) which may be of any suitable type.
with part of a sliding bolt in such manner that
‘>5 when the said bar or rod is moved longitudinally
from its normal position, the bolt is retracted.
But in order that this invention may be more
readily understood, practical embodiments there
of will now be described With reference to the
40 accompanying drawings in which:
Fig. 1 is an end elevation showing part of a
door having a lock of mortise type ?tted therein,
including twisted bar mechanism to actuate a
and is adapted to be actuated by inward pres
sure so that when it is pushed in the direction
of arrow 20X it ?rst moves the bar [9 longitudi
nally to rotate the rollback I1 and so retract the
35
bolt [5, and continuation of the pressure opens
the door D. The upper part of handle 20b is
normally parallel with the door D (or nearly so)
and its lower part projects su?iciently to be
Fig. 2 is a side View of the parts in Fig- 1.
Figs. 3 and 4 are detail views including a
spring bolt and retracting means therefor of the
type illustrated in Figs. 1 and 2. In Fig. 3 the
bolt is in normal projected position while in Fig.
4 it is retracted.
Figs. 5 and 6 are detail views showing a roll
gripped by a user. This handle is actuated by a
pull in the direction of arrow my to move the
bar I9 and so actuate the rollback I‘! to retract‘ 45 '
the bolt l5 and then open the door as before
described. Each handle may be provided with a
rubber or other suitable bu?er such as rubber
block 23 to minimize noise and to absorb any jar.
It will be apparent that the‘ form of bar I 9 50
may be modi?ed, for example the said bar may
be replaced by a twisted rod of square or other
back and an actuating bar or rod at right an
gles to the positions shown in Figs. 3 and 4 re
suitable cross section or a round bar having a
screw thread on its exterior, may be used. In
_ rollback to retract the lock bolt.
r
Handle 20a normally projects outwardly obliquely
55 spectively.
any such case the hole in the rollback is suitably 55
2,181,458
modi?ed so that the rollback operatively engages
the said bar in such manner that when the bar
is moved longitudinally from normal position the
rollback is partially rotated.
The rollback I‘! may be cast or otherwise suit
ably formed in one piece or it may comprise a
back mounted on the twisted part of said bar,
two members arranged to be ?xed to opposite
faces of a door, two handles, means to pivotally
connect one end of each handle to one of said
members, and means to pivotally connect the
ends of said bar to respective handles so that
plurality of members l'lb, IF and I‘![1 formed of
sheet metal as shown in Fig. 7 and ?xed together
the free end of each handle'may be actuated
in any suitable manner to form a rollback as
to partially rotate the rollback.
shown in Fig. 8.
In the modi?ed arrangement shown in Figs.
9 to 11 the actuating bar or rod is arlongitudinal
ly slidable bar 19*‘ on which is a wedge-shaped
projection I95’. The said bar extends through a
2. A control means for catches of the sliding 10
bolt type, as claimed in claim 1, in which said
reciprocable bar consists of a flat strip of oblong
cross section which is twisted through 180 de
15 hole l5a in a bolt l5‘) and its wedge I9!’ opera
tively engages a wall 15° thereof. Bolt l5b is
slidably arranged in a casing l5d in known man
ner and it is normally actuated to operative pro
jecting position by a spring 16a.
The ends of
bar l9a are pivotally connected to lever handles
as 20‘, 20g by which the bar is actuated in man
ner previously described. Although no lock mech
anism has been illustrated in Figs. 9 to 11 it will
be apparent that the described arrangement may
25 be combined with such mechanism while retain
ing features according to this invention.
I claim:
1. Control means for catches of the sliding
bolt type comprising a reciprocable bar the me
30 dial part of which is helically twisted through an
angle that does not exceed 180 degrees, a roll
as a lever to move the said bar longitudinally
grees, in combination with a rollback having an
aperture the shape of which is complementary to 15
the cross sectional shape of said strip.
- 3. Control means for catches of the sliding
bolt type comprising a reciprocable bar the me
dial part of which is helically twisted, a roll
back mounted on the twisted part of said bar, 20
two plates each thereof having apertures through
which an end of the said bar is arranged to pro‘
ject, a lug on each said plate, two lever type
handles, means to pivotally connect an end of
each handle to one of said lugs, means to connect 25
the ends of said bar to respective handles where
by either handle may be actuated as a lever to
move the said bar longitudinally, the free end of
each handle being o?set to facilitate access to a
30
key hole.
RICHARD MURRAY TURNER.
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