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Патент USA US2113105

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April 5, 1938;
E. P. BEAUM‘ONT
- AUTOMATIC
CHAIN LOCK
Filed Jan. 14, ‘1957
V
2,113,105
'
4 Sheets-Sheet 1
ATTORNEY
April 5, 1938.
E. P. BEAUMONT
2,113,105
AUTOMATIC CHAIN LOCK
Filed Jan. 14, 1957
4 Sheets-Sheet 2
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INVENTOR
Ewge?e P. Be
mom‘ “
April 5, l 938.
E. P. BEAUMONT
2,113,105 '
AUTOMATIC CHAIN LOCK
Filed Jan. 14, 1937
4| Sheets-Sheet 5
April 5, 1938.
E. P. BEAUMONT
2,113,105
AUTOMATIC CHAIN LOCK
.
Filed Jan. 14, 1937
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INVENTOR
Patented Apr. 5, 1938
I 2,113,105?
UNITED STATES: PATENT OFFICE
2,113,105
AUTOMATIC CHAIN LOCK
Eugene P. Beaumont, New; York, N. Y., assignor
to Whiting Manufacturing Company», Minne
apolis,,Minn., acorporation of Minnesota
Application January 14, 1937, Serial No. 120,475
4' Claims. (01. 70—93)
The present. invention. relates to locks, the
components of which are permanently mounted.
on a door and its jamb', and‘ more particularly
to the type for. effecting a chainconnection.
5
An object of . this invention is to provide a
novel and improved lock for automatically ef
fecting a chain connection between a door and
its jamb, and for‘ automatically removing such
connection, by a key-controlled means operative
10 from the outside and also from the inside sur
faces of the door, which look shall embody novel
and‘ improved mechanisms to attain a better.
control of the moving parts, and which lock is
“an advance with respect to my previous. inven
employed-to secure the free end of the chain to
the conveying arm.
'
Fig. 13 is a‘ gage memberusedin the-contrive
ance.
Fig. 1411s aside view thereof.‘
-
'
Fig. 15 is a ring member. usedlas'alcollar on the
casing.
.
a
.
Fig. 16 is a side view‘ thereof:
Fig. 17 shows the key.
Fig. 18 is asectional viewfofiabushing.
Fig. 19 isa side view thereof.
-
Fig. 20 showsanother bushing.
Fig. 21 is‘ a side view thereof.‘
Fig. 22 is a front'view. of. the keeper adapted‘
l5 tions in this type of apparatus identi?ed by. my _ to be mounted‘ onth'e jamb.
Patent No. 2,075,015 dated March 30, 1937, and
my application Serial No. 103,099, ?led Septem
ber the 29th, 1936.
Another object of thisinvention is to provide
2 O in a lock of the type described, a means to main-7
tain the lock structures on both door and jamb
intrue locus to insure unlocking unfailingly.
A further object of this invention’ is to provide -
25
in a lock o?ering the‘ aforementioned features,
novel and improved means for controlling and
actuating the various co-operative mechanisms
15
Fig. 23 is-a left side view. thereof;
Fig. 24 is a right‘ side view ‘thereof
Fig. 25 is a fragmentary viewrof‘ the casing
cover.
’
Fig. 26-‘is.a'side:view thereof.
'
Fig. 27: is similarto that of‘Fig. 2" having-a
key-operative cylinder mechanism including; a.
clutch means in. open position;
Fig. 28-shows the same with‘the clutch means‘
in- engaged position dueto the insertion of‘ the
key.-
'
"
-
Fig. 2.9 is a diagrammatic representation show- '
of the device, in proper-timed relation.
Other olojectsanrlv advantages will become ‘ ing» the complete look as‘ appearing while the'door'v
is unlocked, meaning, free of a chain connection;
manifest as the disclosure proceeds herein.
Fig; 30 is a’ similar view, as, appearing. while
In the accompanying drawings, forming part
the door‘ is’ locked showing‘ a: chain connection‘
of this application, similar characters of refer
the door and jamb.
ence indicate corresponding parts in‘v all the between
Fig. 31' is an’ “exploded” view showing the
views.
components of the clutch mechanism» an'dithe
Fig. 1 shows a front view of the lock structure key-operative cylinder on which‘ they are»
' which is mounted on the door, including the mounted.
chain conveying arm.
In the-drawings, the chain conveyor arm I30,
Fig. 2. is aside view thereof.
extends radially outwardintegrally from: the eas
Fig. 3 shows the chain member used‘ in this ing cover I3I,,which caps the cylindrical‘ casing
lock.‘
member" I-3-2. These-partsare-heldagainst I‘.0.=
4O
Fig. 4 shows the cam which. controls a latch
for securing the free end-of the chain to the re
mote end of. the conveying arm.
Fig. 5 shows a front view of the mechanism
,_ which is housed within a chamber in the, lock.
m. 'u ' structure of Fig. ‘1.
tation relative to one another;_because-the dia
metrically apposite lugs I33; extending: outwardly.’
from the casing. member I32,.?tinto the slots
I 34‘ in the casing cover, and‘these-parts are main.
tained as aunitary structure, by means of the“
Fig. 6 is a side view of Fig. 5.
Fig. 7 is a- bottom view of Fig. 5, or a right-end
view of Fig. 6.
\ Fig. 8 shows the mechanism in another cham
ber of the casing of the structure of Fig. 1.
Fig. 9 is a section taken at line 9--9 in'Fig. 8.
Fig. 10 is a section taken at line Ill-Ill in Fig. 8.
Fig. 11 is a section taken at line I'I-—I I‘in Fig. 1.
pair‘ of. engaging.v bushings I35 and I36; The‘
wall of the casing member I32; is-v cut to form-v
elementv I31, which receives. for. permanent:
mounting thereon, the link. I38", of’ the. chain I39;
At the free end of. this chain, is‘: a‘v cross-pin I404.‘
one end of which,.indicatedx by the numeral MI,
is adapted to lie within. the‘ crotch:v I42; at. the.
remote endiof. the conveyor arm I30; A. latch"
I43;.slidably- mounted on: the conveyor’arm, 6X1"
55-, Fig..l2:.showslin perspective,.the latch element
tends i'ntoxthezcasing I32 tozbe controlledzby. the;
2
2,113,105
cam I44, is adapted to secure said cross-pin I40,
I12, lies through the bushings I35 and I36, is
A plate I45, partitions the casing member I32,
into the cylindrical chambers I46 and I41. This
rotatable therein, and is provided with a longitu
plate has a central bore for admission of the
operation from the inside surface of the door.
A bolt I90, is slidably mounted and extends
through the wall of the dish of the sub-base
bushing I36, and another opening I48, through
which extends the cam follower pin I49, from the
end of the arm of lever I50, the latter pivoted on
pin I5 I, and controlled by coil spring I52, to main
10 tain the follower pin I49, against the periphery
of the latch control cam I44; the bent end I53 ,
dinal key slot I88, to receive the key I89, for
plate I16, and its movement is controlled by the
cam I11, against which its bent end I9I, serves
as a cam follower, urged by the action of the
compression spring I92, one end of which spring
of the latch I43, being engaged in the bifur
ispositionedonthe ?xed pin I93, extending with
cated bent end of the arm of the lever I50, indi
cated ‘as I54. To prevent rotation of the bush
in the hollow I18, of the plate I16. The casing
member I32, is provided with a pair of diametri
15 ing I36, it is provided with a socket I55, in the
underside of its ?ange, to set onto the stop prong
I56, which is formed out of the metal of the cas
ing cover I3I.
The casing member I32, carries the base plate
20 I51,» a ring I58 having an outwardly extending
gage arm I59, and the ring I60; only the latter
being ?xed thereon by the screw I6I, the others
being relatively rotatable one to the other. The
base plate I51, is adapted to be secured onto the
25 door 10. It is evident that all the components
thus far mentioned are assembled to be a unitary
structure; there being a ?ange I62, at the un
capped end of the casing member I32, to jour
nal said member to the base plate I51. The
tooth I63, extending from ring I60, is adapted
to engage the ring I58, at stops I64 and I65.
35
pinned at I81 to the base plate I51. The shaft
within said crotch I42.
cally opposite slots I94 and I95, which are adapt 15
ed to receive the bolt I90, when shifted therein
by action of the cam I11 controlling said bolt.
Said casing member I32, also has internally ex
tending lugs I96, lying between the stops I91
and I98, on the external periphery of the inter 20
nal gear I8I, and in the path of such stops. Al
though only one such lug I96 is essential, two
are provided in diametric relation, to attain a
more even drive. A socket I99 is provided at the
end of the shaft I12, for engagement by the key 25
controlled mechanism.
The cylinder means indicated generally by the
numeral 200, is normally wholly independent and
without any physical connection with the lock
mechanism proper of Fig. 1. I remove the shank 30
of an ordinary cylinder means, and provide the
The keeper, designated generally by the nu
meral I66, is adapted to be mounted on the jamb
key I89, which ?ts such cylinder mechanism, with
a forward tab 20I, adapted to pass through and
I03. It comprises a base plate I61, and an open
project outwardly from the shank slot 202 in the
end plate 203, which turns with the cylinder. 35
Within a cup 204, having a ?anged rim 205 the
size of the plate 203, and a shank slot 206 in its
casing I68, having an opening I69, in its side
nearest the door, to receive the remote end of the
gage arm I59, and a crotch opening I 10 in its
front face, to receive the headed end I1I of the
chain’s cross pin I 40. The crotch opening I 10 is
40 arcual, having as its radius, the distance between
the axis of the shaft I12, and the axis of the
cross pin I40; the former point being the centre
of the circle of which it is an arc.
The lower
portion I13 of the crotch opening is towards the
door 19. A spring I14, ?xed by pins I15, and the
side wall of the keeper casing, extends free within
same, and such free arm thereof is normally
across the arcual opening I10 of the keeper
crotch.
A dished sub-base plate I16, has journalled
therethrough, the shaft I12, which carries ?xed
thereon a cam I11, within the hollow I18 thereof
at one side, and the gear I19 on the other side
of said plate I16.
A major segment of a ?at,
55 narrow, circular ring, indicated by the numeral
I80, is secured onto the sub-base plate I16, con
centrically about and spaced from the periphery
of the gear I19, only slightly. An internal gear
I8 I, having the stops I 91 and I 98, on its external
60 periphery, lies concentrically about and slightly
spaced from the spacer I80, and is driven by the
gear I19, through the pinion I84, which is ro
tatably mounted on a shaft I85, ?xed to and ex
tending from the sub-base plate I16. Thelatch
65 control cam I44, sits loosely on shaft I 12, and
is maintained against rotational movement with
respect to said shaft, because pinion shaft I85
is received in hole I86. To maintain the as
sembly of the components carried on the sub
base plate I16, the pinion shaft is slightly riveted
over the cam I44.
The peripheral diameter of
the internal gear I 8|,meaning its external di
mension, substantially equals the internal diam
eter of the casing I32, with which said gear has
75 slight clearance.
The sub-base plate I16, is
bottom, is a headed shank 201 capable of slidable
movement therein, carrying the coil spring 208
thereabout. The length of the shank 201, is such 40
that its end 201' lies within the slot 206. This
cup 204, withits related components described,
is secured to said end plate 203. When the key
I 89 is inserted in the cylinder mechanism 200,
its tab 20I, will enter the cup 204, thereby push 45
ing the headed shank 201 into the socket I99 of
the shaft I12, to establish mechanical connection
with the lock mechanism of Fig. 1.
_
Upon withdrawal of the key I 89, the spring 208,
which had been compressed, will shift the headed 50
shank 201 to its initial position, whereby the key
operated cylinder means 200, and the lock mech
anism of Fig. 1, are divorced, for said shank will
withdraw from its connection with the shaft I12.
When the lock is in unlocked rest condition, as 55
in Fig. 29, the related positions of the components
comprising the actuating mechanism is shown
in the Figs. 5, 7 and 27, at which time lugs I96 are
against stops I91, cam follower I49 is at 209,
whereby the cross-pin I40 is secure in the crotch 60
I42, and tooth I63 is against stop I64. Now. upon
insertion of key I89 into the cylinder mecha
nism 200, so that connection is made with the
shaft I12 as aforesaid, and upon turning said key,
whereby said shaft will likewise turn, gear "9- on 65
said shaft, will drive pinion I84, whereupon the
internal gear I8I , will turn about the spacer I80
as its shaft. At the commencement of this oper
ation, cam I11 will cause the withdrawal of the
bolt I90 from casing slot I94, while stop I91 0n 70
the internal gear IBI moves away from the casing
lug I96, and stop I98 approaches said lug. The
casing I32 is now freed of the base plate I16, and
upon further rotational movement of the shaft
I12, with stop I98fagainst lug I 96, the casing will 75
3
2,113,105
be turned, the conveying arm I30 will approach
the keeper I66, and the headed end I'll of the
cross-pin I40 will be conveyed and deposited in
the crotch opening I10, whereupon cam follower
I49 will reach region 2"] of cam I44, and action
of the spring I52 will shift said follower so that
latch I43 will move to free the cross pin I40 from
the conveying arm I30. Upon further rotation of
the shaft I12, the arm I30 will be swung to lie as
10 shown in Fig. 30, and shaft I12 having made a
complete revolution, the spring I92 will cause bolt
I90 to enter the casing slot I95, thereby ?xing
the casing. Crotch I42 is open, that is free from
latch I43. The cross-pin I40 has been drawn into
15 portion I13 of the crotch opening against the
spring I14, and the chain I39 is taut. The key
I 89, may now be withdrawn from the cylinder
mechanism 200.
It is to be noted, that during the locking opera
20 tion, upon movement of the casing I32, tooth I63
moved away from stop I64, whereby ring I58 be
came loose, and as soon as said tooth reached the
stop I65, the gage arm I59 was swung towards
the keeper I66, and entered same at I69. The
25 bottom of slot I69, prevents arm I59 from falling
further downward, and stop I65 holds it against
upward movement. In this way, no planer dis
placement of the lock structures on door and
jamb can occur.
30
The relative number of teeth of shaft gear I19
and the internal gear I8I is such, so that upon
one complete revolution of the former, the latter
will move an arcual distance equal to the space
between the stops I91 and I98, less the width of
the casing lug I96, plus a complete half revolu
tion.
To restore the lock to rest open position, the
key I89 is turned in reverse direction, whereupon
bolt I90 will be withdrawn from the casing slot
40
I95, and then casing lug I96 will approach and
contact with stop I91, and it is evident that the
operation of all mechanism is exactly in reverse;
the cam I44, being so designed, that latch I43 will
be shifted to lock the cross pin I40 in crotch I42
45 at the remote end of the conveying arm I30, as
soon as said cross-pin has entered said crotch I42,
upon the upward swing of the conveying arm
during the unlocking operation. After bolt I90
has receded, the casing I32 is turned, the chain
50 I39 loses its tautness, whereupon spring I14
shifts the cross pin I 40 in the arcual crotch open
ing I10, to be intercepted by arm I30 moving up
ward. Now latch I43, is shifted to lock the free
end of the chain to the arm I30 as aforesaid, the
55 gage arm I59 is swung upward because tooth I63
is against stop I64, and the lock structure as
sumes the initial position, with bolt I90 again in
casing slot I94. In rest position, slots I99 and
60
206 are in alignment.
From the inside surface of the door, it is evi
dent that upon insertion of key I89, in slot I88,
and by turning the key, shaft I12, will be turned,
whereby the lock is operated. To insure that
upon withdrawal of the key from said slot I88,
65 that slots I99 and 206 shall be in alignment, the
key is provided with notch 209, which becomes
engaged on the segmental internal ?ange seg
ments 2 I 0 in the bushing I36, but which is free of
said segments, when the key has reached the
70 notches 2I I, so that it may be withdrawn from
the key-slot I88, when said slots I99 and 206 are
in required aligned position.
,
This invention is capable of numerous forms
and various applications without departing from
the essential features herein disclosed. It is
therefore intended and desired that the embodi
ment shown herein be deemed illustrative and
not restrictive, and that the patent shall cover
whatever features of patentable novelty exist in
the invention disclosed; reference being had to 10
the following claims rather than to the speci?c
description herein to indicate the scope of the
invention.
I claim:
'
1. In a lock of the type described, the combina 16
tion of a plate adapted to be mounted on a door,
a casing having a radially outwardly extending
chain conveying arm, journalled to the plate, a
shaft journalled to said plate, extending within
the casing, a gear secured on the shaft, and an 20
internal gear mounted within the casing, adapted
to be driven by the gear on the shaft; the casing
and. internal gear being provided with a lug and
a pair of stops respectively; said lug being posi
tioned between and adapted to contact said stops 25
successively, whereby upon rotation of the shaft,
the internal gear will turn free of the casing for
a short interval of time, and upon continued ro
tation, will engage and turn the casing to swing
the chain conveying arm.
80
2. A combination as in claim 1, including a bolt
movably mounted on the plate, adapted to engage
the casing and fix its position, and a cam mount
ed on the shaft; said cam being adapted to shift
the bolt out of engagement with the casing dur 35
ing the interval the internal gear revolves free
within the casing.
3. In a lock of the type described, the combina
tion of a plate adapted to be mounted on a door,
a casing journalled to the plate, having a radially, 40
outwardly extending chain conveying arm, a
chain secured at one end to the casing; said arm
being adapted to admit and engage the free end
of the chain, a latch slidably mounted on the arm
and extending into the casing, adapted to lock 45
the free end of the chain to the arm, a shaft jour
nalled to the plate and extending into the casing,
and a cam carried on the shaft; said cam being
adapted to control the movement of the latch
upon rotation of the shaft.
50
4. In a lock for a door and its jamb, the com
bination of a chain secured at one end to one of
them, a pair of members, each adapted to admit
and engage the free end of the chain, mounted on
the door and jamb respectively; one ?xed and 55
the other pivoted; the free end of the chain being
removably engaged in one of said members, a
gage arm pivotally mounted with respect to the
moving member, adapted to be received by the
?xed member, means to swing the ?rst pivoted 60
member whereby the free end of the chain is
conveyed to leave the member it had ?rst been
in engagement with and to enter and become
engaged by the other of said members to effect or
remove a chain connection between the door and 65
jamb, and means whereby the gage arm is swung
by the ?rst pivoted member in the direction of
travel of the latter during the last portion of this , 7
travel.
.
I
EUGENE P. BEAUMONT.
70
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