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Патент USA US2132817

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Oct. ll, 1938.
' 2›132›817 .
Filed Aug. 27, 1937
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Oct. ll, 1938.
Filed Aug. 27, ?937`
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Oct. 11, 1938.
Filed Aug. 27, 1937
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Patented Oct. 11, 1938
_' Emil A. Zetmeir, Topeka, Kan&
Application August 27, 1937, 'serial No. ?6?,`2s? k l v
i 4.4'c?a?ms.
(c?. 16-99)
My invention relates to means-whereby the V Figure 7 israns'ectional view of the lower end
i doors of railroad baggage clars are slidably* sus
of thesdoor and ot a threshold element.
pended in place, with mechanism for Operating
Figure 8 is a perspectiveview of one` end of
the same, whereby the doors will be forced into the track. with one of the door wedging ele
5 weather-proof relation with the' _car' wall or door ments.
frame and also whereby the doors may be locked
,Figure 9 is a detail_ perspective View of another
in closed position or in open position as well vas
'door wedging' element employed at the opposite `
in partly open position;
end of the door. `-
The invention has for its object the provision
of meansiapplicable'toidoors of the conventional
sliding type, which is simple in~construction, pos
itive in operation and adaptedto' withstand the
more or less severe usage encountered in doors
this nature.`
The invention' involves meanswhereby when
the door is opened it is automatically shifted out
of contact with the weather-scaling means so as
to relieve the weather-sealing elements at the
top, sides and bottom of the door from rrictional
20 rubbing contact and reversely. the means 'will
move the door downwardly and laterally toward
the' sealing elements and hence into weather
sealing condition' during the door closing opera
My invention?relates to hanger and Operating
”mechanism'for use in connection with slidable 10
doors and more particularly baggage car doors,
aiportion of such door being indicated at '20 in ~
Figure 1 wherein. the intermediate portion of the
door is broken away in order to disclose both the
upper and lower ends- thereof.
The upper: end of the door. is *provided .with a
bracket ZI preferably in the nature of 'an angu
larly formed plate disposed 'lengthwise „ of the
top'of the 'door and secured thereto so asto ex
tend above the'door and provide a roller carry
ing a housing open at the side disposed toward
the car wall 22. The car wall above the 'door
opening and extending lengthwise thereof and
somewhat beyond the rear end of the door open
_The invention also contemplates means where vw ing 'is provided with a track forming member'23 25
by the` door will be ?rmly held ineomplete or disclosed in the nature of an L-shape plate hav
partly open position to ensure'isafety for the
trainmen or baggage men against the' unexpect
ed or accidental shifting of the door.
` The above enumerated objects'and the advan
tages inherent in theinvention will all be read
or runway for the ?anged rollers 25.4 The roller
(of which anyrsuitable number may be employed
depending upon the size of the door-three be
ily comprehended from the detailed description
ing shown in the exempliñca'tiom' is`rotatably
of the accompanying drawings, whereinz-?
mounted in a pendently supported_ roller carry
Figure 1 is an inside elevation of a baggage car
ing an upstanding'flange 24 extending through
out the .length of the plate to constitute a guide
door provided with my invention, intermediate
portions of the door' being broken away and only
a fragmentary portion ofthedoor !rame or car
Figure 2 is a sectional elevation of the upper
40 end of the door with the side cover plate re
ing hanger '26 which in turn is pivotally mount
ed by means of a bolt 21 in` the upper end of the
housing 2 l .
The roller carrying hanger zö'isarranged be
tween the bifurcations of a'yoke orclevis 29 (see
Figure 4) which in turn is pivotally connected
to a connecting rod or bar 30 whose opposite
moved, showingithe door closed and the mecha
end is pivotally secured to a double .clevis 3|
` a .roller carrying bracket or
3 is alowering
similar view
illustrating the door hanger controls
32 (similar to hanger 26), see Figures 2
partly open and the mechanism in position to ' and 4. The opposite end of the clevis 3l has a
4 01
connecting bar or` rod 33` pivotally connected
hold thedoor open.
Figure 4- is a longitudinal sectional view taken
thereto andthís rod_ 33 in 'turn is 'secured ,to a
` on the off-set line ,4-4 of Figure 2, looking in
clevis 34 (similar to clevis 29) arranged adjacent
the direction of the'arrows.
Figure 5 is a vertical sectional view' onthe o?
set line 5-5 of Figure 2, looking in the, direction
of the
Figure 6 is'a perspective view of a 'portion ot
the lower end of the door, looking upwardly at
the bottom` edge.
the rear end of the door. › This clevis 34 controls
the roller bracket or hanger 35. The brackets 50
32 and 35 are similar to hanger or bracket 26
and all are shown pivotally mounted on thevup
per portion of door hanger ZI in a similar man
ner, as for example by means of the
blocks 28, see Figure 2. ‹
The ?anged rollers 25 are adapted to ride
along the upstanding ?ange 24 of the track
forming member 23; and the roller carrying
brackets 26, 32 and 35 are mounted to swing or
move through vertically disposed arcs for pur
poses hereinafter described; the bracket or
hanger 26 being Suspended by means of the bolt
21; the bracket or hanger 32 being pivotalLv
supported _by a bolt 31., while the bracket or
10 hanger 35 is pivotally Suspended by means of
to the left in the sector plate 43, which looks the
door in closed position.
Upon releasing latch-pin 45, hand lever 42
may be swung toward the right.
This causes
the roller carrying journal 39 to ride downwardly
in the horizontally disposed arcuate slot 40 and
toward the vertical plane of the _pivot point 21
of the lever. such movement, also causes the
roller carrying bracket or hanger 26 to swing
somewhat toward the vertical plane and induce 10
` bolt 38; the bolts 31 and 36, like bolt 21, being a pressing action of the roller 25 on the track
held in place by the bearing blocks 20,'which . way 24, which forces the door' 20 upwardly out
of close bearing relation with the threshold rail
in turn are secured to the overhead portion of
,46 and moves the weather strip 49, which is
the housing member 2l.
secured to the bottom of the door, out of frie
The rollers 25 are joumalled in the respec
tive hangers 26, 32 and 35 by means of 'suitable tional contact with the threshold and allows
bolts as at 39, see Figure 5, and these bolts pass the door to slide freely into open position.
As the roller carrying brackets 26, 32 and 35
through the respective hangers and through
suitable arcuate slots 40 in the side wall of the are connected together by means of the con« 20
necting links or bars 30 and 33 and as each
20 housing element, see Figure 1. The ?anged roll
ers 25 are preferably provided with roller or roller journal or bolt extends through a similar
ball bearings as at 4l, see Figures 2 and 5, to arcuate _slot 40 (see Figure 1), it is apparent
that each roller carrier or bracket is correspond
ensure easy operation.
The slots 40rin the housing element 2l are ingly oscillated and consequently the' entire door
made arcuate as shown in Figure l, to permit is raised ? to a similar extent throughout its
the respective bolts and the roller-carrying length and its sliding movement readily acco?n
brackets or hangers 26, 32 and 35 to swing or -plished.
In operation, the operator, having shifted lever
move through vertical arcs and permit the roll
as mentioned, releases the trigger in order
ers to assume different positions relative to the
that the, lever may be locked in that position 30
30 bracket supporting bolts 21, 31 _and 30.
The bracket supporting bolt 21, at what may and the lever 42› may be then also used for
be termed the front end of the door, extends pulling the door to either open or closed position.
Swinging lever 42 further to the right in Fig
through the side of the housing element 2l suf
nciently to provide pivotal support for a hand ure 1 not only raises the door with its weather
strip oil' the threshold 48, but causes the top
35 lever 42 shown in Figures 1, 4 and partially in
Figure 5. The lever depends from bolt 21 on edge of the door to be brought into close or im
the inside of the door rearward of a sector plate pinging relation with the bottom of the track
43 secured on the inside of the door as shown rail 23. The upper edge of the door 20 is pref
in Figure 1. The lower arcuate edge of the erably provided with a yielding strip of rubber
or other suitable material as shown at 50 in Fig 40
40 sector plate 43 is provided with a predetermined
ure 5. This'provides a suitable frictional rela
number and arrangement of notches 44 to re
ceive a spring-controlled latch pin 45 which is tion between the top of the door and the lower
slidably secured to lever 42 by means of the face of the track element so that movement
housing 46 (in which a suitable spring, no't of the door in. either direction is impossible;
is also mounted) and controlled by the this relation between the door and the track ele 45
trigger 41 pivotally secured. to lever 42 so that ment being maintained by looking lever 42 in the
shifted position, which is obtained by releasing
pressure on trigger 41 will cause, the spring
controlled latch pin 45 to be withdrawn from a the latch lever 41 and permitting latch pin 45
to enter the notch at the right end of the sector
notch 44 in the sector plate and allow lever 42
plate, as viewed in Figure 1. The raised and 50
Lever 42, at a suitable point below its pivotal partly open position of the door is shown in
point 21, recelves the journal bolt 39 of the
roller 25 at the front end of the door as shown
in Figure 5; the bolt 39 extending through the
55 correlated arcuate slot 40 in the housing wall 2l.
Figure 3.
In doors of the character mentioned, it is es~
sential to provide a weather proof condition be
tween the door and the frame of the door open 55
ing as well as between the door and the thresh
The distance between the pivot pins or bolts
21, 31 and 36 and the perimeters of rollers 25 is ,old or ?oor of the car.
As previously stated and as shown in Figure 7,
somewhat greater than the distance between the
pivot pins or bolts 21, 31 and 33 and the track the car ?oor at the door opening is provided
with a suitable strip 40 having a longitudinal 80
60 ?ange 24, thus necessitating the roller carrying upstanding rib, somewhat of inverted U-shape
hangers 26, 32 and 35 tobe mounted at an in
clination relative to the vertical plane of their cross-section except that the side disposed to
pivot points 21, 31 and 38 so that the lower ward the car exterior is made to slope down
roller carrying ends are disposed toward the for? wardly outward while the side of the inverted
V-shape rib disposed toward the car interier is 65
end of the door, as clearly_ shown in Fig
ure 2. When the rollers are in the position preferably substantially straight, as shown in
shown in this ?gure, the door 20 will be lowered Figure 7. This strip extends throughout the door
into contact with a threshold rail or member opening and is securely fastened to the car-floor
'48 shown in cross section in Figure '1, and later and also constitutes a guide rail for the door.
The bottom of the door 20 is grooved correspond 70
70 described.
ingly and the door preferably is provided with a
The mechanism as illustrated in Figure 1_
plate 5! having ?ange portionscon
namely with the hand lever 42 swung to its
forming with the groove as shown at 52, see Fig
extreme left position-shows the door in com
ures 6 and 7, in order to prevent wear of the
plete closed position and with the spring con
trolled latch-pin 45 in register with the notch groove in the wood door; the bottom outer edge' 75
y ~
of the door beyond the groove is shown provided
with the weather or rubber strip 49, seeFigures
`6and 7.
` With the rubber strip 49 in addition to the
moisture shedding slope of the rib in the thresh
old element 48 and the correlatedg'roove 'in the
bottom of] the door, a weather proof condition
at the bottom of _the “door is provided especially
when the latter is closed and in its lowered con
dition', namely a condition. obtained when lever
proof condition at the bottom of, the door also
When the door has beenmoved to complete
closed position, lever' 42 will be in the extreme
left hand position, shown in Figure 1, with the 5
connected roller carryingbrackets 26, 32 and 35
oscillated to the left as shown in Figure 2. This
,condition of the door'will be maintained by re
leasing trigger 41 to „allow its latch pin 45 to
enter 'the notch at thelefthand end of the sector 10
42 has been swung to`the left jas ,shown in Fig 4 plate 43. _
`If itis desired to partlyopen the door, hand
ure 1 and the roller carrying brackets 26,'32 and
35 have 'been' 'moved away fromthe vertical .lever 42 and trigger '41 aregrasped by the. op- '
planes of their pivotal points, at_ whichVtime
the threshold element will be entirelyseated in
the door groove and the'rubber strip 49 will be
erator to release pin 45 from sector plate 43 and
lever 42 moved slightly toward the right, thus 15
causing the door to be raised out of- frictional `
`compressed on' the outer ?ange_ of the threshold 'contact 'with weather-strip 49,--the forward
element as shown in Figure 7.'
'roller to bemoved out of contact with wedge
` In order to obtain a weather proof condition
51, thereby releasing the door and suspending its
the car wall or door frame about „the ,door `open
ing is providedwith rubber stripping, or other
weighton the-rollers which will allow the door
suitable weatherstripping, secured at?ptheifor
, ward and at? the rear sidesof the` opening, as iwell
block 54›and ?nger 56 out .of contact with hook
about the top and sidesof the door when closed,
jas at the top, as shown at› 53, with therubber,
`or other fabric disposed toward the `door.' '
A ?rm relation between the door when closed
to be freely moved 'to open position. Ifit is de
sired to hold thedoor in open` position, the op
erator willoscillate lever 49 further to the right
so that the rollersswinf* farthertoward the ver 25
tical planes f of the axes of the roller carrying
'brackets, thereby `for'cing the„ top of the door
and the rubber or' weather stripping 53`is_in
with its rubber or other fabric strip into close
duced by means now to be described.
.binding contact with the'bottom of the track
forming element, which causes the door to be 30
The track forming ?ange 24, adjacent the for
ward end of ,the door opening, is provided on its
inner vertical face with a wedge block 54, see
Figure 8, arranged in the path of the roller 25
at the forward end of the door; , the tapered end
35 of the wedge being disposedin_ the path of the
frictionally locked in open' position.
The doorsupporting element, or plate 2| on
its top at points coincident `with-the pivot bolts
421, 31 and 38 of the roller carrying brackets and
at the ends of journals 39 arepreferably pro 35
` vided with means for lubricatingthe journalsand
on-coming roller when` the door is slid to closed
position and the large end of the wedge 54 ex _ pivots, V› the means u being_ indicated `at `56 'and of
the ,type requiring „the useofa grease gun for
tends slightly beyondthe' ?nal travel of the' .for.
tward roller 25 as .indicatedin dotted lines in ? forcing the lubricant throughr the valved cups or
nipples 58 which screw through holes in the top 40
40 Figure 2. The grooves in the rollers are com
paratively wide as shown in Figures 4 and 5, thus of plate 2| and into the ports arranged in jour
nals 39; the ports 59 in "the journals communi
permitting su?icient lateral play on the track
flange 24 to enable the forward roller to also cate with the anti-friction bearings `disposed
about the journals, as shown in Figure 5.
straddle the wedge-block 54.
The connecting link or bar 33 forward of its
connection with clevis 34 of the rear roller is
shown provided with an angular block 55, pro
vided with a horizontally disposed ?nger 56,
shown in detail in Figure 9. The' ?nger 56 is dis
horizontally toward the forward end of
the door and provided with a slight taper or lat
eral inolination, as shown in Figure 4. The ver
tical wall of the track-forming element 23, at a
prearranged point, is provided with a hook mem
ber 51 arranged in the path of the forwardly
disposed ?nger 56 of block 55; the`hook-form
ing member 51 and the ?ngerblock 55`being so
arranged, relative to the closed position of the
door, that the tapered side ?nger 56 will be in
00 engagement with hook 51, as shown in Figure 4.
With the wedge block` 54 heretofore described
and the engaging elements 56, 51, it is evident
that when the door is moved to closed position,
In certain instancesit may be found su?icient 45
merely to employ two roller carrying brackets,
namely one adjacent the forward end and the
other adjacent the rear end of the door. In such
cases, the intermediate roller carrying bracket 32
is ornitted as well as the double clevis 3| and
the connecting link or bar 30 then made longer 50
and pivotally connected to the rear bracket.
I have disclosed what is believed to be the best
embodiment of the invention which has been de
scribed in terms employed for purposes of de
scription and not as terms of limitation, as modi
?cations may be made without, however, depart
ing from the spirit of my invention.
What I claim is:
1. Baggage car door hanger and Operating 60
mechanism comprising, in combination with a
track above the door opening; means secured
to the top of the door so as to overhang the track
where theforward roller has straddled wedge and provided with arcuate slots, a plurality of
block 54 and the tapered ?nger 56 has engaged ~ brackets pendently secured at their upper ends 65
hook 51, that the upper end of the door will be to the inner side of said means so as to move
drawn or forced outwardly and hence into snug about horizontally disposed axes and having roll
relation with the rubber or weather-stripping 53 ers journaled in their lower ends and said rollers
secured to the door-frame about the forward arranged on said track, the journal of at least
70 and rearward ends of the door as well as at one of the rollers being disposed through one of 70
the top of the door opening and thereby pro
said arcuate slots; means whereby all of said
vide a weather sealing condition. At this time brackets are operatively secured together and
the door also will be lowered and its weather' made to move in unison; an Operating lever piv
strip 49 brought into ?rm contact' with the car
otally mounted at its upper end to said ?rst men
75 floor or the threshold strip 46 and a weather tioned means in a plane above one of the arcu 76
ate slots with the extended roller journal secured
to the lever beneath its pivotal point, said lever
being adapted to move throughan arc of a ver
tically disposed circle whereby the brackets are
oscillated through a similar arc and the door
`raised from the car ?oor when the lever is moved
in one direction and the door lowered to the car
?oor when the lever is moved in the opposite di
rection; and means whereby the lever may be
lo locked in its adjusted positions.
2. Baggage car _ door hanger and Operating
mechanism comprising, in combination with a
track above the door opening; a 'housing se
cured to the upper end of the door to overhang
the track and provided with arcuate slots in its
side; a plurality of roller carrying brackets pend
ently secured at their upper ends in the hous
ing above the track so as to permit the brackets
to Swing toward and away' from the vertical
20 _planes of their pivot points, with the roller carry
ing pins of the brackets disposed through said
arcuate slots; a lever pivotally secured at its up
per end to the side of said housing and operative
ly connected intermediate of its ends to one of
25 said roller-carrying pins so that oscillation of the
lever will induce similar movement of the bracket
and the door moved vertically; connecting bars
`pivotally connected to said brackets whereby
the latter are made to move in unison; resilient
30 means arranged on the upper and lower edges
and arranged above the track, each bracket hav
ing a roller journaled in its lower end, with the
roller arranged on the track, while the journal
of each roller ends through a slot in said sup
porting means; a lever pivotally secured at its
upper end to said supporting means and opera
tively secured to one of the roller journals,
whereby oscillation of the lever will cause the
brackets with the rollers to move toward or
away from the vertical planes of the bracket piv 10
ots and thereby increase or decrease the dis
tance between the bracket pivots and the track
and cause the door to be lifted from or lowered
to the car ?oor and the top of the door forced
into frictional holding relation with the .bottom 15
of the track when the _door is lifted; and means
for looking the lever in its adjusted positions.
p 4. Baggage car door hanger and Operating
mechanism comprising, in combination with a
track abovethe door opening; a wedge member 20
secured to one wall of the track member adja
cent one end of 'the door-opening; a housing se
cured tothe upper end of the door to overhang
the track; aplurality of roller carrying brackets
movably mounted at their upper ends to the up 25
per wall of the housing; means whereby the
brackets are operatively secured together;
wedge member carried by said means adapted
to cooperate with the ?rst mentioned dwedge
member whereby the upper end of the door is 30
of the door whereby the door when raised is
frictionally held at top in its' opened position
and frictionally held at bottom when lowered in
drawn against the car wall when the door is
moved to closed position; and a lever pivotally
secured at its upper end to the side of said hous
closed position.`
ing and operatively connected intermediate of
3. Baggage, car door hanger and Operating
mechanism comprising, in combination with a
track secured to the car above the door open
ing; supporting means secured to the upper end
of the door and extending upwardly above the
40 track and provided with arcuate Slots; a plu
rality of brackets pivotally secured to said means
its ends to one of said brackets whereby the
brackets, through the medium of said ?rst
means, are moved toward and away from the
vertical plane of the pivotal points of the brackets
and the door raised out of frictional relation at
the bottom.
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