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Патент USA US2077560

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April 20, 1937.
c_ HARTER
2,077,560
CAR COUPLER CENTERING DEVICE
Filed July 25', 1956 I.
2 Sheets-Sheet 1 ‘
If
0
Gar/Es //ar1‘er
I
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April 20, 1937.
c. HARTEIé
2,077,560
. CAR COUPLER CENTERING DEVICE
Filed July 25, 1956
\_____v
2 Sheets-Sheet 2
Patented Apr. 20, 1-937
2
2,077,560
UNITED STATES ‘PATENT oéFFICE *'
Charles Harter, St. "Louis, Mo.
Application July 25, 1936, Serial No. 92,648
5 Claims. (Cl. 213-21)
This device relates ‘to means for automatically
gositioning the coupler of a railway car by grav
The carriage C is shown with the surface M for
engagement with the rollers B being upwardly
curved (or concave) which would increase the
tendency of the carriage to return to normal cen
Two railway cars are automatically coupled to
; gether by the movement of their respective cou _ tral position, in which event the outer teeth (I6) ,5
on the pendulum D extend further from the
plers forcing the tails of the pivoted knuckles be
hind gravity locks. The couplers are mounted in pivot pin l0 than the inner teeth l8 so that the
contacting surfaces between these outer teeth
the cars so as to permit a limited amount of lat
eral movement. Such limitation is necessary and l6 and the rack l2 on the carriage C will not be
10 essential because if the couplers where allowed to reduced when the carriage moves upwardly on the 10
move too far to either side, the couplers of the rollers B as it ‘moves laterally of the car.
In normal position the carriage C is positioned
two cars being coupled would pass each other and
not couple, thereby defeating the object of the on the longitudinal center of the car and the
automatic coupler. The greater the lateral center of gravity of the weight 20 of the pendu
15 movement of a coupler the less side pressure on lum Dis below the pivot l0 so that the pendulum 15
the striking casting when the cars are going is balanced.
The elements are associated and arranged so
around curves. This lateral pressure forces the
that as the carriage C is moved laterally of the
wheel flanges against the rail causing consider
able friction and wearing of the rails and wheels. car by the coupler 5 the teeth Iii-I 8 of the pendu
1 y.
20
In my device the movement between the cou
pler and the carrier is eliminated, thus reducing
friction and consequent wear on the parts. This
is quite an item particularly in sandy countries
because couplers are costly and the replacement
25
lum D engage the rack l2 of the carriage C and
the pendulum D is swung out of balance and its 20
tendency to return to normal position by gravity
tends to return the carriage and the coupler to
their normal central position.
of a coupler means keeping the car out of service.
The accompanying drawings illustrate the pre-
Coupler positioning devices reduce the number
ferred form of the invention, though it is to be
understood that the invention is not limited to
the exact details of construction shown and de
of broken knuckles and guard arms on couplers
which members are frequently bent or broken
when the couplers are not within coupling range.
Such devices also reduce the number of accidents
30
to trainmen as they are not required to go be
tween the cars and position the coupler prepara
tory to coupling.
I
In the drawings:
Fig. 1 shows the device in normal position with
the coupler on the longitudinal center line of
the car.
Fig. 2 is a section on line 2—-2 of Fig. 1.
Fig. 3 is a section on line 3—3 of Fig. l with the
40 carriage removed in the right half thereof.
Fig. 4 shows the device with the carriage and
coupler moved laterally of the car.
In the form of the invention shown the strik
ing casting, or car part A, comprises an upper
45 part 2, a lower part 3 and side walls 4 surrounding
the coupler 5. A pair of spaced apart rollers B
are mounted in the car part and the carriage C
is supported by the rollers B to move laterally
of the car with the coupler. The projections 8
50 cause the carriage to move with the coupler 5.
A pendulum D is pivotally mounted upon the
car part by means of the pivot Ill, preferably be
tween the rollers B, to swing laterally of the car.
The pendulum is provided with teeth which en
55 gage a rack 12 on the underside of the carnage C.
_
scribed, as it is obvious that various modi?cations
thereof, within the scope of the claims, will occur
to persons skilled in the art.
I claim:
1. A centering device for a railway car coupler
comprising a car part, a pair of rollers mounted
in said car part, a coupler carriage supported by 3
said rollers to move laterally of the car, and a
pendulum pivotally mounted upon said car part
between said rollers to swing laterally of the car,
‘said elements associated and arranged so that
when the coupler carriage is in the normal cen- 4O
tral position the center of gravity of the weight
of the pendulum is below the pivot thereof and
whereby when the coupler carriage moves later
ally of the car the pendulum is swung out of bal
ance and its tendency to return to normal posi- 45
tion tends to return the carriage to a normal cen
tral position.
2. A centering device for a railway car cou
pler comprising a car part,a pair of rollers mount
ed in said car part, a coupler carriage supported 50
by said rollers to move laterally of the car, the
underside of said carriage being provided with a
rack and a pendulum pivotally mounted upon
said car part between said rollers to swing later
ally of the car, said pendulum being provided with 55
2
2,077,660
teeth engaging said rack, said elements associated
of and whereby when the coupler carriage moves
and arranged so that when the coupler carriage
is in the normal central position the center of
gravity of the weight of the pendulum is below the
pivot thereof and whereby when the coupler car
laterally of the car the pendulum is swung out
of balance and its tendency to return to normal
position tends to return the carriage to a normal
central position and the carriage riding upward
riage moves laterally of the car the teeth of the
ly upon the rollers further tends to return the
pendulum engage the rack of the carriage and.
carriage to normal central position.
5. A centering device for a railway car coupler
comprising a car part, a pair of rollers mounted
the pendulum is swung out of balance and its
tendency to return to normal position tends to
10 return the carriage to a normal central position.
in said car part, a coupler carriage supported by 10
3. A centering device for a railway car coupler said rollers to move laterally of the car, the un
comprising a car part, a coupler carriage slidably derside of said carriage being provided with a
supported by said car part to move laterally of a rack and the roller engaging surfaces of the car
the car and a pendulum pivotally mounted upon riage being upwardly curved and a pendulum
said car part to swing laterally of the car, said pivotally mounted upon said car part between
pendulum engaging said carriage so that when said rollers to swing laterally of the car, said
pendulum being provided with teeth engaging
the coupler carriage is in the normal central po
sition the center of gravity of the weight of the - said rack, said elements associated and arranged
so that when the coupler carriage is in the nor
pendulum is below the pivot thereof and where
20 by when the coupler carriage moves laterally of
the car the pendulum is swung out of balance and
its tendency to return to normal position tends
to return the carriage to a normal central posi
tion.
4. A centering device for a railway car cou
pler comprising a car part, a pair of rollers, a
coupler carriage supported by said rollers to move
laterally of the car and the roller engaging sur
faces of the carriage being upwardly curved and
mal central position the center of gravity of the 20
weight of the pendulum is below the pivot there
of and whereby when the coupler carriage moves
laterally of the car the teeth of the pendulum
engage the rack of the carriage and the pendu
lum is swung out of balance and its tendency to
return to normal position tends to return the
carriage to a normal central position and the
carriage riding upwardly upon the rollers fur
ther tends to return the carriage to normal cen
tral position, the teeth on the pendulum varying
car, said elements associated and arranged so in length so that the engaging surfaces between
that when the coupler carriage is in the normal the pendulum teeth and the rack will not be re
central position the center of gravity of the duced when the carriage rides up on the rollers.
weight of the pendulum is below the pivot there
CHARLES HZAR'I'ER.
a pendulum pivotally mounted upon said car
part between said rollers to swing laterally of the
n
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