Self Locking Rail Chair. Page: 4 of 6
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1,126,522
where high speed traffic is handled, and
allows for the maximum adjustment later-
ally and a moderate adjustment vertically,
and is particularly effective when used on
5 lines where an excess in curvature has been
eliminated by reconstruction and where
there is first-class drainage. It is particu-
larly adapted for use in all States east of
the Mississippi River and in portions of the
10 State of Texas. In this portion of the
country where rock ballast and good drain-
age has been introduced and under climatic
conditions wherein the action of frost is re-
duced to a minimum, this chair is particu-
15 larly effective. It will be further noted that
this chair conforms entirely to the require-
ments laid down in the final report of the
Block Signal and Train Control Board
of the Interstate Commerce Commission,
20 wherein it is stated that it is not sufficient
that the tie should merely support vertical
loads and resist horizontal thrusts and the
tendency of the track to move laterally and
longitudinally, but that the overturning
25 movement or tipping thrust on the rail
should be resisted and further that some
means of adjustment must be provided
which will permit the rail to be blocked up
or shimmed and means be provided for
30 widening gage, which means should not in-
volve lost motion or change of adjustment.
While this particular type of chair is pe-
culiarly designed for a certain section of the
country and adapted to be made from cheap
35 structural forms, it is obvious that it may
be used under any circumstances where it is
fitted to the conditions of traffic. It may be
further said with regard to this chair, that
because of the fact that it eliminates con-
40 stant respiking and therefore adds to the
length of life of ties, the use of the chair
will permit the economical use of treated
ties. The cost of treated ties today is ex-
cessive from an economical standpoint when
45 considered with relation to the relatively
short life of the tie due to respiking and the
cutting and crushing action of the rail upon
the tie.
Having described the invention, what is
50 claimed is:
1. A rail-chair comprising a base plate
having oppositely disposed abutments, rail-
engaging members for adjusting a rail lat-
erally and vertically between said abut-
55 ments, one of said abutments extending in-
wardly and upwardly, the corresponding
rail-engaging member having a portion
thereof extending downwardly and out-
wardly for engagement with the adjacent
60 abutment to thereby prevent vertical move
ment of the rail engaging member relative
to said abutment, said rail-engaging mem-
ber having interlocked engagement with the
abutment for longitudinal adjustment along
65 the rail.2. A rail chair comprising a base plate
having oppositely disposed abutments, and
rail braces, one having interlocking adjust-
able engagement with one of the abutments,
said engagement resisting movement either 70
vertically or longitudinally, the other rail
brace being adjustably engaged with the
other abutment for movement either longi-
tudinally or vertically.
3. A rail chair comprising a base plate 75
having oppositely converging abutments,
and rail braces, one having interlocking en-
gagement with one of the abutments pre-
venting movement vertically with relation
to the abutment but permitting the rail 80
brace to be longitudinally shifted and inter-
locked, the other rail brace having adjust-
able engagement with the other abutment
permitting the rail brace to be shifted both
longitudinally and vertically. 85
4. A rail chair comprising a base plate
having oppositely disposed converging
abutments, and rail braces, both having in-
clined outer faces corresponding to the in-
clination of the abutments, one of said rail 90
braces having a vertically disposed series
of teeth coacting with a vertically disposed
series of teeth on the inner face of the cor-
responding abutment, the other of said rail
braces being longitudinally adjustable with 95
relation to the corresponding abutment,
and means for holding the last mentioned
rail brace in its adjusted position.
5. A rail chair comprising a base plate,
and oppositely disposed rail braces, one of 100
said braces being adjustable longitudinally
but held from vertical movement, the other
of said rail braces being adjustable both
vertically and longitudinally.
6. A rail chair comprising a base plate 105
having oppositely disposed abutments the
inner faces of which are inclined to the line
of the rail to be supported on the bed plate
and rail braces, one of which is longitudi-
nally adjustable with relation to the cor- 110
responding abutment and the other of
which is longitudinally and vertically ad-
justable with relation thereto.
7. A rail chair comprising a base plate
having oppositely disposed converging abut- 115
ments, one of said abutments being formed
upon its inner face with vertical teeth, the
other of said abutments being perforated,
rail braces, one of which is provided with
vertical teeth engageable with the toothed 120
abutment, the other rail brace having
notches, and a set screw passing through the
second named abutment and engageable
with said notches.
8. A. rail chair comprising a base plate 125
having oppositely disposed converging
abutments, one of said abutments being
upwardly and inwardly inclined and being
formed with vertical teeth, the other of said
abutments having a vertical inside face and 130a
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Reference the current page of this Patent.
Liebmann, August G. Self Locking Rail Chair., patent, January 26, 1915; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth858884/m1/4/?q=%22%22~1: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.