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Патент USA US2133426

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' Oct- 18, 1938.
Filed Sept. 5, 1957
2 Sheets-Sheet l
Oct. 18, 1938.
Filed Sept. 3, _ 1957
2 Sheets-Sheet 2
I J“)?
62/336 7779
Patented Oct. 18, 1938
Daniel- L. Chandler, Somerville, Mass., assignor
to Aresee Company 1110., Salem, Mass, a corpo
ration of Massachusetts
Application September 3, 1937, Serial No. 162,283
4 Claims. (Cl. 292-267)
My present invention relates to locks and more
particularly to automobile window sash locks.
It is a well recognized fact in the manufacture
of automobiles that the windows of such vehicles
must be easily opened and closed with the mini
mum amount of effort but, at the same time, the
windows must be so controlled that they may be
locked and unlocked from the inside while re
sisting the efforts of unauthorized parties from
performing the same operation from the outside,
even when the window is left slightly open for the
purpose of ventilation.
With these facts in mind I have invented an
improved locking mechanism which operates from
one lever which when in its normal position is
locked‘but when moved to the right or the left
will unlock and allow the window to be operated
up or down as the case may be.
The principal object of my invention there
20 fore, is an improved window lock;
Another object is an improved window lock
which looks the window sash automatically in
any vertical position within the range of its move
Still another object is an improved window
sash lock which is locked in its normal position,
as shown in the drawings, but which may be
unlocked by moving . the hand operating lever
either forward or backward on the door frame, and
Still other objects and novel features compris
ing the construction and operation of my inven
tion will appear as the description of the same
In the drawings illustrating ‘the preferred em
35 bodiment of my invention,
Fig. 1 is an assembled side elevation of the
complete window mechanism removed from the
frame and casing of the window to more clearly
show the apparatus;
Fig. 2 is a fragmentary view of the assembled
apparatus viewed from the opposite side from
that shown in vFig. 1;
Fig. 3 is a fragmentary cross-section taken on
the line 3-3 of Fig. 1;
Fig. 4 is an enlarged side elevation of the lock,
the front cover plate having been removed and
certain levers being broken away for convenience;
Fig. 5 is a view similar to Fig. 4 but showing
the apparatus in an unlocked position;
Fig. 6 shows the reverse side of the apparatus
shown in Fig. 4, the lock being in the same nor
mal locked position, and
Fig. '7 is the reverse side elevation of the posi
tion of the apparatus shown in Fig. 5, the appa
55 ‘ ratus being shown in an unlocked position.
Referring more in detail to the drawings, and
particularly to Figs. 1 to 3 inclusive, I0 indicates
a panel of the door to which my apparatus may
be attached. At II I have shown the usual glass
window pane which is adapted to slide in the door
frame, not shown, and adapted to open and close
the door window opening I2, shown in dot-and
dash lines. The position of the window pane is
shown in its extreme upper position.
1 :5
' Associated with my locking apparatus is a spe
cial window elevating and lowering mechanism
which may be ‘used with the present lock or with
other window locking mechanisms. Likewise, the
elements comprising my lock may be used with
other types of elevating and lowering mecha 15
nisms, especially in installations making use of a
bell-crank lever.
The installation of my apparatus is very sim
ple, the connection to the door being made
through three studs I3 which are secured to one 20
side of the semi-circular plate I4 and mounted
in the panel III.
In my preferred elevating and lowering mech
anism, I ‘have shown a bell-crank lever I5 to
which is secured a shaft IS. The shaft I5 may
be either secured to the lever I5 by means of a
square end ?tted into a square opening in the
lever I5 or by welding or other means, preferably
I have used a square end. In Fig. 3, I have shown
a shaft I6 provided with a collar IT. The shaft
I6 ‘is journaled in the semi-circular plate I4 and
being held in place against the lever I5 by means
of the washer I8 and. the screw I9, it being un
derstood that the end of the shaft surrounded
by the lever I5 is square. On the other end of
the shaft I6 I have provided a slot 20 within
which is anchored one end of a spring 2| the
other end of which is anchored around the screw
22 secured in the depending arm Illa comprising
a part of the semi-circular plate I4.‘ The spring
2I acts as a counter balance for the window pane
.I I. The short arm end of the bell-crank lever
I5 is provided with a wide portion 23 upon which
is mounted my locking mechanism to which I
will refer to ‘in detail presently.
On the bottom edge of the window pane II is
mounted a conventional channel ‘member 24. To
the under side of the channel member 24 I have
attached, in any suitable manner, as by welding,
brackets ‘25. The brackets 25 are provided at
their lower portions with horizontal slots 26 one
end of which being enlarged, as at 21 to receive
grooved stud members 28. A second bell-crank
lever 29 is p-ivoted'to the'long arm end of the bell
crank lever I5 by means of one of the .studs 28
which is slidably mounted in the adjacent bracke
et groove 25. ,The long end of the bell-crank
lever 29 is slidably connected to the other bracket
25 by means of the stud 28 which is engaged in
the slot 26 in a similar manner to the engage
ment of the similar stud 28 in the other bracket
25. The short arm end 30 of the bell-crank lever
29 is pivoted at 33 to another lever, indicated at
3I, the opposite end of which is pivoted at 32 to
10 the depending portion I4a of the semi-circular
plate I4. The major axis of the pivot points of
the long arm of the bell-crank lever I5 and the
lever 3I are parallel to each other. The central
pivot point of the bell-crank lever I5 around the
15 shaft I6 and the pivoted end of the lever 3| con
necting the depending member I4a are ?xed with
respect to the door frame, panel and semi-circular
plate I4. When the bell-crank lever I5 is swung
with the shaft IS the window pane II is elevated
20 or lowered, as the case may be, and during such
movement, the window pane which is wider than
it is high, is supported at the two points indi
cated by the two pivot studs 28. With such an
arrangement of bell-crank levers both ends of the
25 window pane are acted upon with equal forces
which prevent the window pane from becoming
jammed in the conventional guide-ways provided
for the purpose of guiding such window panes.
The bell-crank lever I 5 is actuated from a hori
30 zontal lever 34, the operating handle 35 of which
is adapted to slide along the top of the window
sill 35, indicated in dot-and-dash lines, in Fig. 1.
The other end of the lever is pivoted at 31, in the
present application, to a lever 38 which is piv
35 oted around the shaft I6. Stop members 39 are
On the far side of the dog members 42 and 43,
as shown in Figs. 4 and 5, are pins 48 which are
adapted to project through elongated slots 49
located in the member 23 and through cam slot
openings 50 located in the lever 38. It will be
noted that the slots 50 in the lever 38 are pro
vided with opposed cam surfaces 5I adapted to
contact with the pins 48. When the locking
mechanism is in a normal position, as shown in
Figs. 1, 2, 4 and 6, the pins 48 rest in the bottom
of the slots 50 and the free ends of the dogs 42
and 43 are engaged in the teeth 48. When the
apparatus is in this position, it is impossible to
operate the window pane II without moving the
lever 38. This ‘is true whether or not the sash 15
is pulled up or pressed down. The dogs 42 lock
against the teeth 40 when the lever I5 is pivoted
in one direction, and the dogs 43 lock against the
teeth 40 in the opposite direction when the lever
I5 is pivoted in the opposite direction thereby 20
locking the window pane in either direction.
When it is desired to raise or lower the window
pane, the lever 34 is moved in a horizontal direc
tion, either forward or to the rear, and being piv
oted to the lever 38 pivots this lever on the shaft 25
I6 to one side until it contacts with the stop
member 39 on member 23. At this point the cam
surfaces 5I in the lever 38 causes the dog mem
bers 42 and 743 to pivot upwardly disengaging the
dog members from the teeth 40. At this point, 30
due to the fact that the lever is engaged against
the stop member 39, the lever I5 is pivoted with
the shaft I6 in the plate I4 thereby operating
When the lever 38 is
the other levers and operating the window pane
up or down. When the lever' 38 is reversed the 35
dogs are again raised in the same manner and
the elevating levers operate the window pane in
contacted against the stop members 39, either to
the right or the left, the bell-crank lever I5 with
40 the shaft I6 pivots in the plate I4.
If the window pane elevating and lowering
the opposite direction.
It should be noted that the dogs 42' and 43, in
the center portion of the member 23, as viewed 40
in Fig. 4, are’ not engaged‘ against the side of the
placed in the side of the portion of the bell-crank
lever I5 indicated at 23.
mechanism is used without my locking means the
lever 38 may be eliminated and substituted for by
an extension of the arm 23 of the bell-crank
45 lever I5.
The locking mechanism of my invention mak
ing use of the bell-crank lever I5 and the semi
circular plate I4 which are essential elements of
the combination, may be associated with other
50 types of window panes not requiring dual lifting
points. In other words, the pivot stud 28 on the
end of the bell-crank lever I 5 can be used directly
with a slide bracket 25 where a one point con
tact with the window pane is su?icient doing
55 away with the bell-crank lever 29 and parallel
lever 3|.
Assuming that either a simple bell-crank lever
lift mechanism is used or a special arrangement,
as shown in the drawings, my locking mecha
60 nism which I am about to describe will operate
equally well.
It will be noted that the circular edge of the
semi-circular plate I4 is provided with teeth 48.
These teeth are formed with opposing'faces lo
65 cated at ninety degrees to each other.
On the
face of the lever member 23 above the toothed
edge of the plate I4 are pivoted at 4| a plurality
of dog members 42 and 43.
The pivot members
M are also pivoted through the cover plate 44
70 shown in Fig. l. The free ends of the dogs 42
and 43 are adapted to engage in the teeth 40 and
are maintained in an engaged position by means
tooth on the ?xed member I4 with respect to
the end of the dogs as is the case with the outer
This clearance is intentional. Assuming
that there were four right-hand or four left-hand 45
dogs instead of two. In such case it would then
be possible for each dog preceding the ?rst outer
dog to have slightly more clearance than the one
preceding it and in this way the locking posi
tions of the ?xed member I4 and the lever 38
would be increased. As shown in the drawings,
the two right-hand or two left-hand dogs make
it possible to lock the mechanism in two posi
tions for every tooth on the ?xed member I4.
By making the dogs right-hand and left-hand, 55
I provide a very strong lock in both directions
but it should be observed that I also provide a
lock in both right-hand and left-hand directions
from dogs engaging one side of the teeth in the
?xed 'member I4, as shown by the two center 60
dogs on Fig. 4. When the lever 38 is in the
neutral position, which is the locked position of
lever I5, as shown in Figs. 4 and 6, the pins 48
are directly under the points 80 of the cam slots
58. The spring 2| is anchored at one end to the 65
?xed member I4, as shown at 22, the other end
being anchored in the sloteed end of the shaft I6,
The shaft I6 rotates freely in the ?xed member
I4 but is tightly ?xed in the bell-crank lever 38
therefore the spring member 2| provides a coun
terbalance for the window pane I I. In this posi
tion it is impossible to lift any of the dogs with
of the light wire springs 45. The anchor ends of out breaking the mechanism.
these wire springs are bent around the separator
Taking the ?xed member I4 as a basis and
75 collars 46 and under the pins 41.
7 assuming that it has a ?xed number of divisions 75
represented by the teeth 40, I have provided a
given number of dogs on a moving member, the
pivot center-to-center distance between the dogs
being slightly more or less, as the case may be,
than the distance to the center of the adjacent
dog. The teeth on the ?xed member l4 and the
number of dogs on the moving member may vary
to suit the designer.
Having thus described my invention what I
10 claim as new is:
1. An automobile door window lock compris
ing, a semi-circular plate ?xed to the frame of
said door, a plurality of teeth located on the out
side curved edge of said plate, the said teeth
being V shaped and having an included angle
of forty-?ve degrees, a pawl casing pivoted to
said plate, the said pivot being radially disposed
with respect to said teeth, the said casing having
an open lower side slidably engaged over said
teeth, oppositely disposed pawls pivoted Within
said casing and having right-angled free ends
adapted to engage against one side of said V
shaped teeth, a lever pivoted on said casing and
provided with cam openings in its side, pins at
tached to said pawls engaging through the side
of said casing in said cam openings of said lever.
2. An automobile door window lock compris
ing, a plate ?xed to the frame of said door, said
plate having a curved periphery with right-an
30 gled V teeth formed thereon, a pawl casing piv
oted on said plate the bottom edge of which is
slidably engaged over said teeth, a cam release
lever pivoted on said casing, pawls pivoted in
said casing and engaging one side of said teeth,
the pivot point of said pawls being located on a
line at right-angles to the engaging side-of one
of said teeth adjacent the free end of one of said
pawls, pins attached to said pawls extending
through openings in said casing, a pawl release iii
lever pivoted to said casing and provided with
double acting cam slots, said pawl pins being
adapted to engage in said cam slots.
3. In a window lock for automobile door win
dows or similar disclosures, a ?xed member at
tached to said door having a plurality of straight
sided V teeth radially disposed on the edge of
said ?xed member, a pawl casing pivoted on said
?xed member, pawls located within said casing
and having pivot axes located on a line at right
angles to the contact face of said teeth when said
pawls are looked, a pawl cam lever pivoted on
said ?xed member having double acting cam
openings, connecting means connecting said
pawls through said casing and engaging in said I
cam openings.
-4. In a window lock for automobile door win
dows or similar disclosures, a ?xed member locat
ed in said door, radially disposed teeth located
on said ?xed member, a casing pivoted on said
?xed member, pawls pivoted in said casing, the
free ends of said pawls being adapted to engage
against one side of said teeth on a line at a
right-angle to said side and extending through
the pivot point of said pawls, a cam lever pivoted
to said ?xed member, cams located in the side
of said cam lever, means for connecting said
cams with said pawls.
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