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Патент USA US2409712

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Oct. 22, 1946.
J. scHUNK
` 2,409,711
SASH LOCK FOR BUS OR CAR WINDOW ACONS'L‘RUC‘Í'IOÍ‘I
Y Filed Jun@ 23', 1944
’AlIì'h_l
'NAVI
2,409,711
Patented Cet. 22, 1946
`UNITED STATES PATENT OFFICE
2,409,711
SASH LOCK FOR BUS 0R CAR WINDOW
CONSTRUCTION
'
Joseph Schunk, Union, N. J., assìgnor to The
National Lock Washer Company, Newark, N. J.,
a corporation of New Jersey
Application .I une 23, 1944, Serial No. 541,813
3 Claims.
(Cl. 292-473)
2
1
Fig. '7 is a side elevation thereof.
Fig. 8 is a side elevation of the sash lock insert
The present invention relates to a sash lock for
bus or car window construction, and has for an
object to provide a bolt actuating sash lock as
or frame member.
Fig. 9 is a transverse vertical sectional view
sembly which may be conveniently incorporated
thereof, taken along the line 9-9 of Fig. 8.
in the bottom rail of a window sash, with the co
operative parts of the lock secured to the bottom
rail entirely at one side of the sash lock bolt, as
Fig. 10 is a detail side elevation of the sash
lock case.
thereof, taken along the line Il-Il of Fig. 10.
wherein the attaching screws for the sash lock
assembly extended through the bolt, necessitating
the punching of clearance slots therein.
A further object is to provide a sash lock case
of substantially reduced thickness having a con
tinuously flat face in spaced parallel relation to
the flat surface of the bottom rail, its shape and
construction eliminating the necessity for the
usual projecting bulge offset heretofore provided
in the case for containing the operating lever.
The iiat face greatly facilitates cleaning, and has
the further advantage of increasing the sill sur
face and minimizing theposibility of a person
catching his hand or ñngers between the sill and
the sash lock case when the sash is lowered.
`
Fig. 11 is a transverse vertical sectional view
distinguished from prior rtypes of sash locks,
10
Fig. 12 is a side elevation of the sash lock lever.
Fig. 13 is an edge View thereof.
Similar reference characters indicate corre
sponding parts throughout the several iigures of
the drawing.
Referring to the drawing, the window sash, in
which the sash lock assembly of the invention
is incorporated, comprises generally a sash glass
I0, a top rail (not shown), a bottom rail, and a
pair of vertical side straps connecting the top
and bottom rail. Only one end of the bottom rail
and one of the side straps is illustrated, it being
pointed out that the other end of the window
sash is of identical construction, an identical sash
lock being carried thereby in reversed relation
A further qbject is to provide an improved sash
lock assembly wherein the sash lock lever, of rela 25 to the sash lock illustrated. The side straps are
adapted to have vertical sliding movement in ver
tively wide flat form, is pivotally arranged in
tical sash. guide post pieces at each side of the
parallel relation in the space between the inner
window opening, the sash lock bolts in each end
side of the iiat sash lock case and the flat side
of the bottom rail engaging rack strips provided
.surface oi the bottom rail, so that regardless of
its position eiïectual support for the lock lever 30 in the post pieces.
The bottom sash rail comprises a pair of spaced
is obtained.
side strips II-I l, between which is secured by
With the above and other objects in view, an
welding or the like a sash glass receiving channel
embodiment of the invention is shown in the
strip l2 having its upper edges flush with the up
accompanying drawing, and this embodiment will
per edges of the strips Il. A second channel strip
be hereinafter more fully described with reference
I3 is secured between the side strips Il interme
thereto, and the invention will be finally pointed
diate their lower edges and the base of the chan
out in the claims.
nel strip I2, the space between the channel strips
In Athe drawing:
I2 and I3 providing a longitudinal passage
Fig. 1 is a fragmentary view, showing the in
ner side of one lower corner of a window'sash 40 through the bottom rail in which the sash lock
in which is incorporated the sash lock assembly,
bolt is engaged, as will presently more fully ap
according to the illustrated exemplary embodi
pear. At the lower edges of the side strips Il
ment of the invention.
there are provided inwardly projecting flanges I4,
Fig. 2 is a horizontal sectional view, taken along
engaged with the longitudinal side grooves I5
45 of the rubber weather strip I6 inserted in the lon-.
the line 2--2 of Fig. 1.
Fig. 3 is a longitudinal vertical sectional view, ' gitudinal pocket provided below the channel strip
taken along the line 3--3 of Fig. 2.
VI3. Instead of forming the bottom rail from the
Fig. 4 is a transverse vertical sectional view,
several strips as shown it may be of extruded one
taken along the line 4-4 of Fig. 1.
Fig. 5 is a vertical transverse sectional view of 50 piece form, or of other suitable structure to pro
the bottom rail, taken through the sash lock
mounting portion thereof, the sash lock parts
being removed.
Fig. 6 is a detail plan view of the sash lock
Abou. '
.
vide substantially the same cross-sectional shape.
A vertical recess Il is provided in the end of the
bottom rail for receiving the lower end of the side
strip, as will presently more fully appear, this
recessed end being formed by extending the ends
2,409,711
3
i of the side strips I I beyond the ends of the chan
4
tom rail, where they are engaged by the attaching
nel strips I2 and I3 and the ñanges I4.
The side strap comprises a channel strip I8
screws 36 of the sash lock case 37. At its rear
ward end the insert member is bent inwardly at
adapted to receive the vertical edge of the glass
I0 and the glazing strip I9 enclosing it, its verti
cal side walls being bent outwardly and rear
a right angle to provide a stop and guide 38 for
the extension rod of the sash lock bolt, a bearing
wardly at their forward edges to provide ñanges
2li-2G to engage the forward vertical sides of
the facing strip 2i engaged about the channel
strip. The facing strip is of U-shape cross-sec
tion and is formed of suitable sealing material,
such as felt, being cemented or otherwise suit
ably secured about the channel strip. The lower
end portions of the flanges '2U are compressed, as
at 22, and are engageable within the end recess
I'I of the bottom rail, with the end of the rubber
weather strip I6 of the bottom rail extended into
engagement with the vertical bottom wall of the
passage 39 being provided therein for receiving
the rod.
A stepped thrust pad member t0 is secured
to the inner side of the insert member, by weld
ing or the like, and projects downwardly there
'from to seat within the groove of the channel
strip I3, the angular step 4I thereof engaging
over the corner of the inner ñange of the channel
strip I3. This thrust pad is adapted to be con
tacted by the bolt when the end of the bolt is
supported on the sash rack and the weight of
the raised window is imposed thereon.
The sash bolt ¿l2 is in the form of an elongated
bar of rectangular cross-section, provided at its
channel strip I8, the side strap having secured
to it an inwardly projecting lug member 23, en 20 outer end with a rack engaging beveled nose 43
gaged in the end Yof the longitudinal passage of
Aand near rits rearward end and at its upper side
the bottom rail and secured 'to ‘the rail by a
Iwith a rectangular `notch 'dll for receiving the
screw 24. This lug member is of inverted U
actuating lug of the sash nlock lever, as will pres
shape in cross-section at its projecting portion
ently more fully appear. An extension rod 45
engaged within the vbottom rail, so 'that it .en 25 >is 'provided upon the inner end of the plunger
gages over the top and sides of the sash lock
‘and ~has Aengaged thereon a U-shape `straddler
bolt, while its portion 25 within the channel
or pressure member '43, >an 'aperture "lll being
strip I S is of rectangular tubular form. The
'provided in the ‘intermediate portion of said
upper and lower walls Vof the tubular portion 25
member for sliding engagement upon the rod,
'are provided with lug -extensions Zit-26, engaged 30 and the sides of the member embracing the end
through a rectangular opening 21 in the vertical
of the plunger. The straddler member is nor
base ‘of the wall of the channel strip Vand ‘bent
mally Apressed ’forwardly ’toward 'the end of the
‘above and below the slot into contact with the
plunger >by means ofthe plunger spring '48 dis
outer surface of the base wall where -they are
;posed “about ‘the rod v«I5 between the straddler
'rigidly secured thereto by welding or .the like.
‘member and a washer '139 slidably mounted upon
'In axial line with the >opening 21 land the passage
`the vend oi the rod and retained thereon by
through the tubular portion 25 of the lug mem
Ímeans of an enlargement äîi 'formed upon the
ber ‘the facing strip '2i is provided with a Vrec
'end of the rod. It `should lbe noted that the
tangular passage 28, the outer end of the sash
`enlargement 5B serves 'to retain ‘the washer,
’lock bolt :being slidably engaged in these passages 40 spring, and straddler member in Àplace upon the
and normally projected therefrom into engage
,plunger when these parts ‘are in disassembled
ment with 'the rack strip of the lsash guide post
'relation'a‘s aunit, 'as ‘shown in Figs. 6 and 7. In
’piece with which ‘the side strap of the window
the -assembled relation in 'the'sas‘h rail the rod
sash assembly is normally engaged.
“d'5 is 'engaged through the passage 39 of ya stop
At its sash lock 'locating point the ‘bottom ‘rail
guide '38. 'In the assembled relation of ‘the -parts
is .provided ‘at its inner side with Va pivot bearing
'the “washer lâiì abuts the -stop vguide 38 com
>hole 29, and an‘arcuate‘slot 30, concentric >to the
pressing the .spring “48, ‘the stop guide r'acting as
ain'sof the bearing hole and directly beneath it,
a fixed part against which the spring reacts.
’the bearing 'hole being relatively Knear the upper
The'sash’lock'case‘ 37, which has Va continuously
edge of the rail and the arcuate slot being at a
'flat outer Vface parallel to the inner .side of the
point opening into the bolt-receiving passage
bottom_rail, is .provided with an inwardly bent
of the rail for Vreceiving 'the 'bolt actuating lug
>rim flange 5i :extending along its horizontal
r'of >the sash -lock lever, as will ‘presently >more
lower edge and -upwardlyl along its inwardly
fully appear.
The rail is 'also provided as its
inner side with three holes 3l suitably »located
to receive the attachment'stu'ds and-screws of the
sash'lock assembly, as will presently more fully
curved `end edges, 'the upper side .of 'the case
' "being 'open to ‘provide a slot opening for the bolt
4Vactuating lever 'and having a horizontal lip 52
extending outwardly therefrom 'at a right angle
to provide a ñnger grip for ccopera‘tion with the
The sash lock rassembly comprises an insert
"'lever,"as will presently more fully appear. The
or -frame member 32 in the form -of an'elongated 60 lowerwall 'of the rim flange >5I has a ‘pair of
appear.
-~rectangular strip engageable within the longi
ltudinal passage of the bottom Vrail in contact
with the inner surface of the .innerïside strip 'I2
supporting ‘lugs "53 lanced therefrom and 'bent
>upwardly -at leach side of the central attaching
screw receiving hole 5e, so‘as *to'provide a `bracing
thereof, being of suitable 'width to ñt between
l»structure 'at ~the central ’area of “the Vcase to -with
the under surface of the -channel'strip :lf2 'and ' '
stand the tightening force ofthe central screw.'36.
A pivot stud ‘551s riveted Àtov/the inner side of
the case and is engagedin 'the'p‘ivot'holeîilg Yof the
'bottom vrail to provide a 'pivot lm'o-_unting for ‘the
the upper vedge of the channel strip '.I3. The
insert Amember is provided >in its upper edge in
position to substantially register with the arcuate
slot 3€! of the bottom rail with arectangular cut
out 33, and at suitably spaced points with
counter-sunk holes .3d in which are engaged
"flanged internally threaded bushings v35. 'These
bushings 'are iiush with the'in'ner surface 'of ‘the
insert ‘member ‘and Aproject “from the `outer *sur
face -to engage within 'the 4holes 3| of the `bot
sash lock lever'ïâö, 'a bearing ‘bushing "5,1 'being
‘secured’ in'th'e lever for lengagement with the‘stud.
At'its iupper edge '.t'h‘e leveris provided 'with 'an
outwardly projccting'ñnger grip lip v'58 rvertically
opposed to the lip 52 ofthe case.
At its lower
edge‘there is'provided an inwardly projectingbolt
actuating lug 59, engaged with the notch 44 o'f
2,409,711
6
the bolt through the arcuate slot 30 of the rail
and the cut out 33 of the insert member 32.
The straddler member 46 is pressed back in the
assembled relation, as shown in Figs. 1 to 4, so
that its forward edges are substantially in line
with or slightly forward of the edge of the notchL
44, and normally presses against the lever lug 59,
which in turn is pressed against the opposed side
Having thus described my invention, what I
claim and desire to secure by Letters Patent is:
l. In a sash lock window construction, a rail
having inner and outer side walls and a longi
tudinally extending bolt passage, said inner wall
of said rail havinga slot, a lock bolt disposed in
said passage and projected from one end, a lock
case member engaged upon the outer side of said
inner Wall, attaching- means securing said case to
of the notch 44. In this Way the lock parts and
the operating lever are at al1 times held against 10 said inner wall terminating between said case
and the inner side of said bolt, and an operating
looseness and rattling under pressure of the
lever pivotally mounted in said case having an
spring 48, the straddler member being so ar
actuating lug extended through said slot into en
ranged that it takes up all lost motion and com
gagement with said bolt.
pensates for wear and variations in the parts.
2. In a sash lock window construction, a rail
This condition obtains even after considerable 15
having inner and outer side walls and a longi
Vwear upon the parts and also under the con
tudinally extending bolt passage, said inner wall
tinuous vibration to which the parts are sub
of said rail having a slot and a plurality of screw
jected in the usual bus and car installations. ` The
receiving holes, a lock bolt disposed in said
bolt is retracted through downward pressure upon
the lip 5B of the lever causing the lug 59 to swing 20 passage’and projected from one end, a lock case
member engaged upon the outer side of said inner
rearwardly in the slot 3D' and thus retract the bolt
Wall, attaching screws connected between said
against the pressure of the spring.
inner wall and said case extending through said
The lever 56 is in the form of a’ relatively wide
screw receiving holes and terminating between
plate, its forward edge being extended in a wide
said case and the inner side of said bolt, and an
curve from the forward edge of the lip 58 to the
operating lever pivotally mounted in said case
lug 59, so that in any position a substantial sur
having an actuating lug extended through said
face of the lever is eiïectually supported in the
slot into engagement with said bolt.
narrow space between the opposed parallel sur~
3. In a sash lock window construction, a rail
faces of the bottom rail and the sash lock case.
It will be observed that the mounting structure 30 having inner and outer side walls and a longi
tudinally extending bolt passage, said inner wall
of the sash lock assembly is arranged entirely
of said rail having a slot and a plurality of screw
upon the inner wall of the bottom rail and at the
receiving holes opening to said passage, a lock
inner side of the sash lock bolt. Hence, it is
bolt disposed in said passage and projected from
unnecessary to punch slots in the bolt for receiv
one end, an insert frame member engaged upon
ing the threaded bushings and screws for the sash
the inner side of said inner wall, a lock case mem
lock assembly, as heretofore required. The flat
ber engaged upon the outer side of said inner wall,
face of the sash lock case provides a‘ relatively
attaching screws connected between said insert
large clear space between the lip 52 and the win
member and said case extending through said
dow sill so that there is little possibility of catch
ing a ñnger between the casing and the sill in the 40 screw receiving holes and terminating between
said case and the inner side of said bolt, and an
lowering of the window.
operating lever pivotally mounted in said case
I have illustrated and described preferred and
having an actuating lug extended through said
satisfactory embodiments of the invention, but it
slot into engagement with said bolt.
will be obvious that changes may be made there
in, within the spirit and scope thereof, as defined 45
JOSEPH SCHUNK,
in the appended claims.
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