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Sept. 6, 1938. »
2,129,552
P. HUNTER, .là
APPARATUS FOR HEAT TREATINGRAILS
Filed May 13, 1937
4 Sheets-Sheet v l
l
Sept; 6, 193s.
2,129,552
P. HUNTER, JR
APPARATUS FOR HEAT TREATING RAILS
Filed May 13. 1937
4 Sheets-Sheet 2
INVENTOR
Pme/w fammi/zz
BY
-ATTORNEY
sept. 6, 193s.
2,129,552
P. HUNTER, JR
APPARATUS FOR HEAT TREATING RAILS
Filed May l5, 1957
4 Sheets-Sheet 5
INVE'NTOR`
www am@
'
BY
’
ATTORNEY
Sept. 6, 1938.
P. HUNTER, JR
» 2,129,552
APPARATUS RoR HEAT TREATING RAILS
Filed May 13, 1937
4 Sheets-Sheet 4
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INVENTOR
PERÚ/KIZ md?
BY
ATTORNEY
2,1)29552
. Patented Sepe e, 193s
'UNITED' STATES PATENT OFFICE
2,129,552
_
APPARATUS FOR HEAT TREATING RAILS’ i
,Percival Hunter, Jr., Chicago, lll., assigner 'to The
Oxweld Railmßd Service Company, a www
Vtion of Delaware
_Application May 13, 1937, Serial No. 142,434
15 Claims. (Cl. 288-5)
This invention relates to apparatus for heat ed thereon. The main frame or carriage A is
treating the tread surfaces of rails, especially at .. adapted to rest upon and be moved along rails
R of a section o’i track, while'the operating struc
rail joints, and more particularly to portable ap
paratus which can be moved along a track for ture lB carries a heating unit at each side thereof.
a unit Hnbeing located over the left hand rail 5
of the track and a second unit HR located over
. 5 hardening tread surface areas with high temper
ature heating names.
One of the principal objects of the invention
is to provide an improved apparatus of the char
the right hand rail of the track. yIt will be noted
«that the operating structure B also carries gaa
controlling devices C substantiallyÍ at the center
thereof and located for ready access by the op- l0
> _ acter speciiied which is easily constructed, of
l0 minimum weight and emcient in operation. An
other object is to provide such an improved ap
paratus having heating units for each rail of a
track, so as to avoid the necessity of shifting the
erator.
’
,
'
.
It is desired to have the entire apparatus of
a light and portable, but nevertheless sturdy and
_ entire apparatus in proceeding along va. section of Y rigid.' construction.
Thus, the carriage A may
l5 track which is being heat treated. Other and be composed of suitable'light weight welded tubmore specific objects are: to provide such an ap-~ ing formed into a box-like shape comprising up
paratus in which the heating units are mounted ` per and lower transverse horizontally disposed
upon an operating structure or supporting frame, members or braces Il, connected by longitudinal
said operating structure being pivotally mounted horizontally disposed braces Il and a plurality of
2° upon a primary frame structure which is adapt~ vertically disposed braces 12. At each of the four
ed to be moved along the track; to provide means corners of the carriage A shoes or rests i3 are se
for oscillating and adjusting the heating units cured by means of bolts il threadedly engaged
simultaneously; to provide improved means for in the ends of the transverse horizontally dis
controlling the gases supplied to the heating posed braces I8. Said shoes have suitable heat
and wear resistant soles or bearing plates I5 at25 unit; and to provide improved means for mov
ing the apparatus along the track being treated. tached thereto with bolts i6 and completely in
as to prevent
The above and other objects and novel features sulated electrically therefrom
of the invention will become apparent from the any improper operation of the track signalling
system. Flanges i511 may be provided on the
following description, having reference to the ae
bearing plate at one side of the machine at least
30 companying drawings, in which:
_
Figs. l and 2 are respectively front elevational so as to aid in positioning 'the heating units Hr.
and Ha with respect to the rails iL-eing treated.
and plan views of one form of apparatus embody
ing the principles of the present invention;
A
Fig. 3 is an end elevational view of a major
35 portion of the apparatus shown in Fig. l;vv
Fig. ê is a. vertical sectional view of the appa
ratus, taken along the line 4--4 of Fig. l;
Fig. 5 is a fragmentary vertical sectional view
taken along the line 5-5 of Fig. 3;
40
Fig. 6 is a ditic view, corresponding
’ approximately to the line 6-6 oi' Fig. 3, and
showing particularly the location ot the heating
tips with respect to a rail joint;
.
Figs. 'i and 8 are respectively plan and iront
45 elevational views of a modiiied form of primary
'
frame structure upon which the operating struc
ture shown in Fig. 1 may be pivotally mounted;
and
Fig. 9 is a plan view, mainly diagrammatic., of
50 a modified arrangement of the gas controlling de
vices.
.
As shown in Figs. 1 and 2, the improved rail
25
30
operation, angularly disposed handle bars 1l 45
may be welded to the braces ii of the carriage
A and strengthened by vertical supports 2| (Fig.
4) and a horizontal brace 22. The ilanged wheels
Il and their supporting brackets Il are arranged
so that when the machine is resting upon the 50
shoes I3, the wheels i9 will not contact the tread
surfaces of the rail (see Fig. 3) . By bearing down
on the handle bars 2U, however, the apparatus
frame structure or carriage A and an operating
will be fulcrumed upon the rear shoes i3 and
55 o_r secondary frame structure B pivotally mount»
20
It will be observed that the shoes it are of a
rigid angular construction and form. an efficient
stationary support for the entire machine when 35
performing a heat treating operation. However',
in order to allow the machine to be moved from
one rail joint to the next, the shoes I3, at the rear
of the machine, may be provided with suitable
extensions or brackets Il rigidly supported by 40
braces I‘la and having bearing portions Il - (Figs.
2 and 3) for receiving the axles of flanged
wheels I9 on which the entire machine may be
wheeled along the track. To facilitate in this
primary
heat treating machine comprises ‘ a
`
15
bring the wheels I! into contact with the rail. 55
2
2,129,552
Further depression of the handle bars will cause
the entire apparatus to be raised from the track
and supported upon the wheels so that -it may be
moved to another position. Handles 23, sup
ported by parallel spaced arms 24, which maybe
secured to the frame by‘means of the bolts' I4
for the shoes I3, are provided at each side of
the machine for lifting the entire apparatus from
the track in or'der to carry it from one place to
10 another;
1 Operating or secondary frame structure B, ,in
' a general sense, comprises three transverse tubu
- lar members or braces 25 which are positioned'at '
the corners of a triangle and welded or otherwise
15l
ñxedly secured at their opposite ends to end plates
26. 'By means of inwardly extending bosses or
venient source of gaseous fuel by means of hol
low tubular connections 42 and 43 respectively.
Three nozzles or heating tips 44 are mounted in
the underside of each of the manifolds 40 and
4I with two of each group of nozzles disposed
adjacent and above the inside edges of the abut
ting rails R, and the remaining one disposed ad
jacent and above the outside edge, so that sub
stantially triangular or trapezoidal shaped heat
treated areas may be produced in the tread sur
faces (see Fig. 6) .
One of the heating heads is preferably adjust
.able longitudinally of the rails R with respect to
the other, and both of said. heads are vertically '
adjustable so as to vary or adjust the distance
between the ends ofthe nozzles and the tread
lugs 21 provided on the upper corners of the ' surfaces of the rails R.
plates 26, the operating structure B is slidably
mounted on two shafts 28, one of said shafts
20 being located at each side of the apparatus. The
To this end the tubular
connections 42 'and 43 are clamped between the
sections of split holding blocks 45 and 45 respec
tively, the sections of said blocks being held to
opposite ends of yeach of the shafts 28 are jour
nailed in bearings 29 provided on the upper ends
of four vertically disposed supporting arms 30.
At its lower end, each of the arms 30 is pivotally
gether by means of thumb screws 41 so as to
apparent that by means of the arms 30 the entire
ment on said rods by means of a positioning screw
maintain the heating heads in any adjusted verti
cal position. 'I'he block 45 is secured to the plate
25 by means of an angular bracket 48 bolted to
attached by means of a pin or bolt 3| to a lug - said plate and welded to said block. However, the
32 provided -on the inner lower corner of the ad- . block 45 is slidably mounted on guide rods 50
jacent shoe i3. From the foregoing' it will be ñxed in the block 45, and is movable for adjust'
structure B is pivotally mounted for oscillatory' 5I which is threadedly engaged in the block 45
30 or reciprocatory movement upon the~ primary sup' and journalled in a plate or bar 52 connecting the
porting frame' A. Such movement of the oper
ating structure is desired for imparting a corre
^
-
With the above described construction one of
sponding Aoscillatory movement to the heating
units Hr. and Ha which, as mentioned above and
will be described more particularly hereinafter,
>the heating heads may be adjusted longitudinally
are carried on each side of the operating struc
the entire apparatus in order to locate the fixed
heating heads properly with respect to the end
of a rail joint, it is desirable to make some pro
vision for moving the operating structure B longi
tudinally with respect to the rails. Accordingly,
' ture B.
‘
In order torimpart an oscillating or reciprocat
-ing movement to the operating structure B a lever
4.0 331s pivoted upon a bracket 34 which is secured
to one of the handle bars 20.' The forward end
of the lever 33 is pivotally connected to one end
of a link 35, the other end of which is pivotally
secured upon the rearward end of one of the
45 shafts 28. Thus, by moving the lever 33 from
side to side the operating structure may be oscil
lated. It is desirable to limit this movement,
however, and for accomplishing this purpose a
U-shapedyoke 36 is provided on or formed inte- »
'so
ends of the guide rods.
grally with the upper end of one of the shoes I3,
as best shown in Figs. 2 and 3. The arms of this
yoke are positioned on either side of the adjacent
of the rail with respect to the other. _However,
rather'than having'to rely upon a positioning of
a shaft 54 having handles 55 at each end thereof
is journalled in suitable bearings provided in each
of the plates 26 and, as shown in Fig. 3, is located
below the shafts 28. Pinions 56 are mounted on
opposite ends of the shaft 54 for engagement with
suitable rack teeth 51 provided on the lower side
of each of the shafts 28. This construction is
shown in Figs. 3 and 5, where it will be seen that
by turning either of the handles 55 the operat
ing structure'B may be moved along the shafts 50
28 so that the fixed heating head 40 may be lo
cated in the desired position with respect to the
supporting arm 30 so that as said arm 3U pivots end of a rail when starting a heat treating opera
about its associated pin 3i during the oscillating ` tion.
.
,
movement it will be limited in its movement by
When the heating units are in operation. the 55
contact with the arms ofthe yoke. Adjustment flames issuing from the blowpipe nozzles 44 are
of the oscillating movement may be eiîected by
reflected -back from the tread surface of the rail
and cause said nozzles to become overheated. To
of the yoke. By moving4 these screws inwardlyA or lprevent any backñring which may'occur as a
outwardly, the effective distance between the arms result of the preignition of the gases before issu
of the yoke may be varied, thereby varying'the ing from .the orifices of the nozzles 44, a suitable
amplitude of the oscillatory movement of the copper bail’le plate 58 may be provided between
frame B.
the nozzles of each blowpipe and, as shown in Fig.
The heating units Hr. and HR may be of any 3, is adjustably and removably suspended from
65 suitable construction in which a source of high the guide rods 50 by means oi’ supporting arms 53.
temperature heat, such -as an Oxy-fuel gas flame, This _baille is adapted to increase the circulation
an electric arc or the like, is utilized to heat the of air about the nozzles and remove heat from
body of metal being treated. Those shown in the the region of said nozzles, it preferably being of
kpresent instance are similar in general construc
the type disclosed in the application of H. S.
70 tion and operation to the heating unit disclosed George, ñled December 24, 1936,' Serial No. 70
means of adjusting vscrews 31 provided in the arms
in H. S. George application, Serial No. 25,567,
filed June 8,_ 1935. Thus, as shown particularly
in Figs. 3 and 5, each of the _units Hr. and Ha
comprises two heating heads or manifolds 48 and
4I which are adapted to be connected to a con
117,506.
'
Gases maybe supplied to the heating units
from any suitable source. For example, oxygen
and acetylene cylinders, together with suitable
pressure regulators, may be carried on a push car
l
.
.
.
2,129,552
which isl adapted to travel along .the track as the - the gases for the heating» units Ha and Hx. from
heat treating operations progress. Flexible tub# the right and left hand shut-olf valves respec
ing in suiiìcient lengths is provided to connect tively, the conduits and mixers may be rearranged such cylinders with the gas controlling devices C Y as shown diagrammatically in Fig. 9, wherein like
on the apparatus, _an acetylene tube 68 being con- `
reference characters indicate corresponding parts
nected to 'an acetylene inlet 6| and an oxygen
shown in.Figs. 1, 2, and 4. It will be noted that
the valves 80 and 8|, mounted on the right hand
side of the housing 61, lead the acetylene and oxy
gen‘to the mixer 84 from which the combustible
mixture is led to the Y-iitting 88 which, in this 10
instance, is connected to the heating unit Ha;
and the valves 64 and 65 control the flow of acet
ylene and oxygen directly togthe mixer 1|, fromwhich the combustible mixture is led to the Y
connection 16 for the heating unit H1.. This ar 15
rangement of the gas controlling devices may be
considered preferable to that described above
since it tends to avoid any confusion during the
> tube 62 being connected to an oxygen inlet 63.
Separate gas controls are provided for each of
the heating units Hr. and HR, although the gas
pressures are regulated at the supply cylinders.
Accordingly, as shown in Figs.V 1 and 2, the gases
supplied to the heating unit HR are-controlled by
an acetylene shut-off valve l64 and an oxygen
shut-off valve 65, which are connected to their
15 respective acetylene and oxygen inlets 6i and 63.
The two. valves are interconnected for simulta
neous actuation by means of a handle 66 and are
mounted in a convenient location for ready access
bythe operator on the left hand portion of the. operation of the heat treating apparatus.
l
upper side of a „rectangular sheet metal housing
For igniting the combustible gas mixture at the
61. This housing 61 is in` turn secured' to the nozzles 44,‘a pilot burner P may be employed. As
4upper braces 25 of the operating frame structure shown in Figs. 1, 2, and 5, such a burner may
B by means of brackets- 68. A suitable conduit 18 comprise the end of a metallic tubing 82 which is connects the aceytlene shut-oli valve 64 with the disposed adjacent the nozzles“ and supported
lower portion of a mixer 1| carried by a spec‘al from the plate 26 by means of a bracket 83.
supporting bracket 12 which is secured to the tubing 82 extends upwardly and towards the cen
braces 25 in any convenient manner._ Acetylene ter of the machine to a push button 84 which
passes through this lower portion-of themixer isvpart of a partially open'valve connected’to the
1I, withoutbeing mixed with any owgen, into a acetylene inlet 6I by means of a conduit 85.
coil 13 comprising an elongated tubular conduit,- .Push button 84 is? provided for opening the par
_the opposite end of which is connected to the cen
tially open valve further when it is desired to in- _
tral or lmixing portion of the mixer 1|. This coil crease the size of the continuously burning pilot
13 greatly improves the flashback resistance of flame to ignite the gas at the nozzles 44.
the heating apparatus andsis disposed inside of
The method of operating the above described
the housing 61 in order that it may not become heat treating apparatus is substantially as fol
battered or broken during handling df the ma
lows: In heat treating tread surface areas at
chine while in operation. Oxygen passes direct
rail joints in a section of track, certain prelimi
1y from the valve 65 tothe mixer through a con
nary adjustments are made before vheat treating
duit 14 and is there properly 'mixed with the the iilst rail joint. When the apparatus is placed
acetylene so that a suitable combustible mixture
upon a section of track, the joints of which are
may be led from the mixer ‘Il to the heating unit to be heat'treated, it -is moved on the wheels I8
HR. For this purpose, a conduit 15 connects the and brought to rest with one of the heating units
outlet side of the mixer with a Y-iltting or con
positioned directly over the ilrst rail joint to be
nection 16 from which branch conduits 11 and 18 treated. Assuming - that the iirst -îolnt to be
lead the combustible mixture to the tubular con
treated is in the right hand rail R, the -entire ap
nections 42 and 43 respectively of the heating paratus is shifted by sliding on the shoes I3 until
unit Ha.
the flange l5a is in contact with the side of the .
Similarly, the gases for the heating unit Hx. rail. With the ñange |511 in contact with the
are controlled by an acetylene shut~oif valve 88 inner edge or side of the rail head, the nozzles 44
connected to the inlet 6I and a shut-oil valve 8| will be located at the desired position between
connected to the inlet 63, which valves are simul
the inner and outer edges of the rail. In operat
taneously actuated by means of a handle 82. ing on rails o_f different sizes having wider or
Acetylene passes from the valve 88 through a con
narrower rail heads, diñerent bearing plates may
duit 83 to the lower portion of a mixer 84 which is be substituted for the plates l5 and having the
, supported upon the frame B by a special bracket
iianges I5a thereof properly located so as to po
84a (Fig. 4). From the mixer the acetylene sition the nozzles 44 accurately on such wider or
passes through a coil or elongated conduit 86, narrower rail heads. If desired, the shoes I8
similar to the coil 13, and then back to the mixer.- could be' provided with slots for receiving the
The coil 85 is disposed in -the housing 61 on the . bolts i6 and thereby allowing the bearing plates
side thereof adjacent to the handles 66 and 82 as l»I5 to be adjusted laterally with respect to the rail
sho'wn in Fig. 4. Oxygen is led directly to the head. The tips of the nozzles are then correctly
mixer 84 from the valve 8l by means of a conduit positioned for height above the tread surfaces of
86, and the combustible mixture passes from the . the rails by `loosening the thumb screws 41 andv
outlet side of the mixer 84 through a conduit 81 raising or lowering the tubular connections 42
to a Y-fitting or connection 88. Branch conduits
and 43. Next, the group of nozzles 44 connected
98 and 9| lead the combustible mixture from the to each of the manifolds 48 and 4l are properly
outlet side of the ñtting 88 to the tubular connec
positioned lengthwise of the rail from the ex
tions 42 and 43 respectively of the heating unit treme end thereof. 'I'his may be accomplished by
turning'the handle 55, which moves the entire
From the foregoing it will be noted thatv the operating frame B, until the fixed manifold 48 is
70
handle 82, on the right hand side of the housing _ located the desired distance from the end of tue 70
61, controls the gas supply forA the heating unit rail; and then the end of the positioning screw
HL; while the handle 66, on the left hand side 5l' may be turned, sliding the block 46 along the
of the housing 61, controls the gas supply for the guide rods 58, to locate the manifold 4l a corre
75 heating unit Ha. Should it be desired to control sponding distance from the adjacent rail end.
2,129,552
4
In adjusting-'the elevation
,
and position of the
nozzles 44 a suitable gage may be employed, i1'
desired.
‘
.
‘
’
Withv the nozzles properly positioned above the
ci ' tread surfaces and from the extreme ends of the
carriage A, which ls particularly adapted for the
continuous treatment4 of v the entire rai tread
surfaces indi?. section of - track, although braking
and/or lockingl devices are provided so that the
apparatus may be used> for treating the restrict
rails, the screws 31 in the arms of the yoke 36
ed* tread surface portions adjacent a rail joint.
are initially adjusted. at the first rail joint to limit
the oscillatory or reciprocatory movement that
_can be imparted'to the noznes by' moving the.
Such a modified carriage A', is similar to the car
riage A and is composed o_f suitable light weight
welded tubing formed into'a box-like shape com
lever 33. It will be understood thatthe position
of thenozzles and the limit _of their oscillatory
disposed members IIO, connected by longitudi
movement are such that the gas flames are not
nal horizontally disposed~ braces |'II and a plu- .
prising upper and lower transverse horizontally 10
directly _applied to the inner and outer edges, nor rality of verticallydisposed braces II2. At each
to the, extreme end edges of the rail `tread sur
of the four corners of the carriage A' shoes I|3
faces. 'I'he conduction of heat to the extreme » aresecured by means of bolts |I4 threadedly en 15
side edges and corners of the tread surfaces from gaged in the ends of lthe transverse horizontally
the heated portions adjacent thereto is sufficient ‘ disposed members IIO. It will be noted that the
shoes H3, in the present instance. are not used
to form a stationary support for the entire ma
20 Similar adjustments are then made for the chine, but, on the contrary, are primarily pro
heating unit H1. on the opposite side of thema
vided for they-purpose of supporting suitable ex
chine, moving the machine to a' rail joint inthe tensions or brackets ||`| at each corner of the
left hand rail R, if necessary.- The valves and machine. These brackets'il'l are rigidly s_u'p
pressure regulators for the acetylene and oxygen ported by means of braces’ II'Ia and are pro
are then adjusted to deliver said gases' at the vided with bearing portions IIB for receiving the
proper pressures at the control valves 64, 65,80,v ' axles of flangedwheels I |9_upon which the- en
' to heat such parts so that uniformity of tem
perature in the heat treated areas is attained. I
and 8 I , so as to produce flames having the proper
. rate of heat output and the proper or 'desired
Iquality, such as neutral or a slight excess of
acetylene. Such adjustments -may be main
'
20
‘
25
tire machine is supported and. adapted to be
wheeled along the track. The wheels IIS are
preferably mounted in roller or ball bearings and,
as shown in Fig. 7, are insulated electricallyfromv 30
. tained substantially constant throughout the ` the frame of the carriage by suitable insulation
operation of the machine, unless both heating
units Ha and Hr. are to be operated simultaneous
ly, when a -readjustment would be required. It
-will be apparent that the adjustments of the gas
supply at the supply cylinders will not be af
fected by operation of the control valves through
the "handles 66 or 82.
_
_
;
When the above described> preliminary'adjust
||8a provided about the axles in the bearing por
tions ||8 so that" any improper operation of the
trackl signalling system will be prevented.
>To-i'ahllitate the operation of moving the ap 35
paratus -along the track upon the wheels I I9, -an
gularly disposed handle bars |20 may be welded
to the braces III of thefra'me A' and strength
ened/by vertical supports | 2| and a horizontal
_
Handles |23, supported
by parallel> 40
spaced arms.. |24 which may be secured to the
frame by means of the bolts II4, are provided
The push button 94 is operated to increase the at each side of the machlnedor lifting the entire
size of the pilot name and the handle or lever 66 apparatus from the track in order to carry
for the- valves 64 and 65 is moved to its open po- l from one place _.to another.
~'
45
ments have b'een made; the pilot burners P are
brace |22.
. lighted and the apparatus is ready for heat treat
ing the ñrst rail joint on the right hand rail R.
sition to ldeliver oxygen and acetylene _to the
In order to stop the apparatus in its movement,
nozzles 44 in the heating unit Ha. Simulta , or lock it in any adjusted‘position upon a track,
neously with the lighting of the nozzles the oper la specialbraking or locking device is lprovided
ator oscillates said nozzles through a small arc by -\on the forward -end of the carriage A’. One sat
moving the lever 33 from side to side. By ob
isfactory form of braking mechanism may com 50
serving a timing device 96, conveniently located prise a brake lever _S'I` pivotally connected by
on the horizontal brace 22, the length of time means of a headed pivot pin 98 to each of the
the heat is applied to the tread surface areas can ' forward bearing members IIB. These brakes are
-be accurately determined, and, at the end of a resiliently held 'in the position shown in Fig. 8
55 predetermined length of time, the handle 66 is f by recoiling springs 99 encircling the' headed
' moved to its closed position. The apparatus is
pivot pins 98, but are adapted to be turned about
I then raised upon the wheels I9 and moved to the
their pivots and into contact with the adjacent
next rail joint in the section of trackï" being rail so> as to stop or hold the apparatus in any
treated. This joint will be located in the left adjusted position. Brake shoes 91a are pro
60 hand rail R so that the heating unit Hx. will be
vided on the contactingportions of each brake
utilized> for the next' heat treating operation. lever and insulated,v electrically therefrom in any
However, since the preliminary adiustments have suitable manner. vAn eccentric sprocket |00 is
already been made, it is .only necessary to posi
rigidly secured tò each brake adjacent the pivot
tion the nozzles from the extreme ends of the Ithereof and has an operating chain IOI engag
f 65 rails by manipulation of the handle 55 and po
ing the sprocket teeth. One end of- this chain
sitioning -screw 5I. When this has been accom
is-rigidly connected to the inside or lower edge
plished the push button 84' for the _heating unit
_ of the eccentric sprocket |00 in such a manner
Huis depressed and the handle 82 moved to open
position to light the nozzles in said unit. Oscil-`
70 lation or reciprocation of this heating unit HL
that when the chain is pulled about the sprocket
.is effected by thevsame lever 33 and the entire
heat, treating operation is otherwise the same as
that already described for the heating unit Ha.>
In Figs. 'I and 8 there is shown a modiñed con
struction for the primary frame structure or
the brake will be turned ‘about its pivot and into
contact with the rail. Thus,- the opposite end
of each chain |0| is connected through a guide
rod |02 and a spring- |02a to a roller unit |03
which is adapted to slide along a tubular guide
or cross arm |04 extending outwardly from either
side of a vertically disposed supporting mem
i
$29,552
ber |15. Both the cross arm |04 and the ver
tically disposed supporting member |n5 are cen
trally located at the front of the carriage A' and
rigidly secured to the-members Il. by means ofa
plurality of braces IBG
Each of the roller units forms part of a tog
gle brake actuating mechanism and is pivotally
connected to one end of a hook-shaped link |01.
'I'he opposite hooked end of each link |01 is piv
oted to one end of a double crank arm or toggle
member III which is centrally pivoted to the
upper end of the vertically disposed member |05.
The crank arm |08 is adapted to be actuated by
5
ployed without others, without departing from
the present‘ invention or sacrificing any of its
advantages.
-
What is claimed is: »
1. Apparatus _for heat treating tread surface
areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along
a track; a supporting member pivotally mounted
on said carriage; heating units carried by said
supporting member, one unit being disposed over 10
each rail of the track; and means vfor oscillating .
said pivotally mounted supporting member so
that both of said heating units may be oscillated
an elongated handle or lever lil! which is rigidly v.simultaneously over their respective rails.
secured thereto by means of bolts |08a and spaced
2. Apparatus for >heat treating tread surface 15
therefrom by spacing bushings |0911.
ìIn Figs. 'I and 8 the braking mechanism is
shown in inoperative position. It will be ap
parent, however, that when the handle or op
erating lever |29 is moved substantially 180°
in aclockwise direction, the roller units |03 will
be moved inwardly along the cross arm |04 so
as to rotate the brake levers 91 about their piv
ots Il and into'flrm and secure contact with the
\ areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along '
a track; a supporting member pivotally mounted
on said1 carriage; heating units carried by said
supporting member, one unit being disposed over 20
each rail of the track; and means for moving said
supporting member longitudinally with respect to
the rails so as to move both of said heating units
simultaneously for adjustment.
associated rails. It will be noted that when the
f 3. Apparatus for heat treating tread surface 25
crank arm |08 and links |01 are in their inoperative position, such parts are in a dead center
position; and likewise when the handle |||9 is
areas of rails, comprising the combination of a
rotated substantially 180°, the parts will-again
on said carriage; heating units carried by said
supporting member, one unit being disposed over 30
each rail of the track; means for moving said
supporting member longitudinally with respect to
the rails so as to m‘ove both of said heating units
simultaneously for adjustment; and means for
occupy a substantially dead center position so
that the brakes $1 will remain in contactwith
the >rails without any force being applied to the
handle. When it is desired to release the brake,
the handle Ill is raised and will spring back into
35 its inoperative position.
.
carriage adapted to rest upon and be moved along
a track; a supporting member pivotally mounted
oscillating said pivotally mounted supporting
Except for the fact that four wheels are pro
vided so that the apparatus may be easilymoved
member so that both of said heating units may
alonga track, and a braking or locking mecha
r
nism is provided to hold the carriage in any ad
4. Apparatus for heat treating tread surfacer
areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along
justed position, the heat treating apparatus in
cluding the modified carriage A' is entirely-simi
lar to the first described apparatus comprising
the primary frame or carriage A and the operat
ing frame structure B. Thus, shafts |28 are pro
45 vided at each side of the machine for slidably
receiving an operating frame structure B, and
said shafts |28 vare pivotally supported on the
upper ends of four vertically disposed supporting
35
bâjîscillated simultaneously- over their respective
.
a track; an arm pivotally connected to said car
riage; a supporting member pivotally mounted
on said arm; heating units carried by saidvsup
porting member with one unit disposed over each
45
rail of the track; and means for oscillating said
pivotally mounted supporting member so that
.said heating units may be reciprocated over the
tread surfaces of the rails.
x
arms |36. Said arms |10 are pivotally mounted
like the arms 3l so that the entire operating
5. Apparatus for heat treating tread surface
frame supported on the shafts |28 may be os
areas of rails, comprising the combination of a. 50
cillated by means of a lever |33 and link |35.
' carriage adapted to rest upon and be moved along
If desired, a three-sided shield IIS, composed
of copper or other suitable material, may be se
cured to the shoes H3 at each side of the ma
_ chine, as shown in dot and dash lines in Figs. 'I
and 8.
Such a shield will tend to prevent the
flames from spreading and thereby protect the
operator and°parts of the apparatus from the
intenseheat produced in the two heating units.
It will be understood that if the apparatus is
utilized to treat the tread surfaces of both rails
simultaneously, then both heating units may be
adjusted simultaneously along the shafts |28 and
likewise may be.oscillated or reciprocated over
the rail tread surfaces simultaneously by actua
tion of the lever |33. During such operation the
carriage A' may be moved at the desired and
predetermined rate of speed by the operator.
70 However, means may be provided for propelling
the carriage along the track, if desired. For this
purpose a motor properly geared to one- of the
wheels Il! would be suitable.
Various changes may be made in the construc
75 tion and certain features thereof may be em~
a track; an arm pivotally connected to said car
riage; a. supporting member pivotally mounted
on said arm; heating units carried by said sup 55
porting memberwith one unit disposed over each
rail of the trackïmeans for moving said sup
porting member longitudinally with respect to
the rail so as to locate said heating units properly
for starting a heat treating operation; and means 60
for reciprocating. said pivotally mounted support
ing member so that said heating units may be
lreciprocated over the tread surfaces of the rails.
6. Apparatus for heat treating tread surface
areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along
a track; an arm pivotally connected to said car
riage: a supporting member pivotally mounted
on said arm; heating units carried by said sup 70
porting member with one unit disposed over each
rail of the track; means for reciprocating said
pivotally mounted supporting 'member so that
Said heating units may be reciprocated over the
tread surfaces of the rails; and means cooperat
' 6
2,129,552
ing with said arm forlimiting the reciprocatory means for oscillating said operating frame so as
movement of said heating units.
y
_
7. Apparatus for heat treating tread surface
areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along
a track; aplurality of _ arms pivotally connected
‘ vto said carriage; a supporting frame pivotally
mounted _on said arms; heating units carried by
said supporting frame, one unit being disposed
10 over each rail of the track; and means for oscil
to effect a corresponding movement in the source
of high temperature heat, said oscillating means>
comprising a-lever fulcrumed on the carriage
and a link pivotally connected'at one end to said
lever and at _its other end toone of the vertically
' disposed arms.
'
12. Apparatusïfor heat treating tread surface
areas of rails, comprising -the combination of 'a
carriage adapted to rest upon and be moved along
loè
lating said pivotally mounted supporting frame. a track, said carriage being substantially rec
tangular in shape; a vertically disposed support
so that both of said heating units may be oscil
lated simultaneously over their respective rails.
8. Apparatus for heat treating tread surface
16 areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along
-a track, said carriage being substantially rec
tangular in shape; a vertically disposed support
ing arm pivotally connected to each of the four
corners of said rectangular carriage; a shaft at.
each side of said‘carrliage and journalled at its
'ends in the adjacent supporting arms; an operat
ing frame slidably mounted on said shafts; a
source of high temperature heat carried by said
operating frame anddisposed above the tread sur
corners of said rectangular carriage; an operat- » face of one of the rails ofthe track; means for 20
ing frame pivotally connected to said arms; a. oscillating said operating frame so as to eiIect a
ing arm pivotally connected to each of the four
source of high, temperature heat mounted on said
corresponding movement in the source of high '
operating frame; and means for oscillating said
temperature heat, said oscillating means com
operating frame so as to effect a .corresponding
prising a lever fulcrumed on the carriage and a
link pivotally connected at one end to said lever 25
25 movement in the source of heat carried thereby.
9. Apparatus for heat treating tread surface
areas of -rails, comprising the combination of a
carriage adapted to rest upon and be moved along
.a track, said carriage being substantially rec
30 tangular in shape; a vertically disposed support
ing arm _pivotally connected to each of the four
corners of said rectangular carriage; a shaft at
each side of-said carriage and journalled _at its
l ends in the adjacent supporting arms; an oper
35 ating frame slidably mounted on said shafts; a
and at its other. end to one of the vertically dis
posed arms; and a yoke mounted onv the carriage
and- having'arms _disposed on either side of one
of - said vsupporting arms for limiting the oscilla
tory movement of the 'operatingframa
‘
13. Apparatus for heat treating tread surface
areas adjacent the ends of 'rails atv a rail joint, »
comprising the combination of a vcarriage adapted
to rest uponJand bemoved along a track; a sup
porting member mounted on said carriage; a
source of high temperature heat carried by said heating unit carried by said supporting member
operating frame and disposed above the tread _ and including two sources of vhigh temperature
surface of one of the rails of the track; and means
for oscillating said operating frame so as to ef
40 fect a corresponding movement in the source of
high temperature heat.
«
heat, one of said sources- being fixedv with re
spect to said supporting member and the other-of
said sources being movable longitudinally of the 40
rail; means for'moving said supporting member
’ 10. Apparatus -for heat treating tread surface
longitudinally/_of the rail so as to position said
areas of rails, comprising the combination of a fixed source of heat properlywith respect to the
carriage adapted to rest upon and be moved , end'of a rail; and meansfor moving said other
along a track, said carriage being substantially
rectangular in shape; a vertically disposed sup
porting arm pivotally connected to each of the
four corners of said rectangular carriage; a shaft
at each side of said carriage and journalled at
50 lts ends in the adjacent supporting arms; an
operating frame slidably mounted on said shafts;
a source of high temperature heat carried by
source of heat longitudinally of the rail while the 45
supporting member and said first mentioned
source of heat remain stationary.
' -
. 14. Apparatus for- heat treating tread surface
areas of rails, comprising' the combination of a
temperature heat; and means- for moving said
carriage adapted to rest upon and be moved along 50
a track; wheels' mounted on said carriage and
normally out -of contact with the rails when the
carriage is at rest on the track; a supporting
member pivotally mounted on said carriage; a
source of high temperature heat carried by said 55
supporting member and adapted to be disposed
above the tread surface of a rail; and means forv
operating frame along said shafts so as to posi- _
oscillating said pivotally mounted supporting
said operating frame and disposed above the tread
surface of one of the rails of the track; means for
oscillating said operating frame so as to effect a
55 >corresponding
movement in the‘source of high
tion said source of heat properly for starting a
heat treating operation.
-
memberl so ~as to effect a corresponding move
.t ment in the source of high temperature heat.
to
11. Apparatus for heat treating tread surface
15. Apparatus for heat treating tread surface
areas of rails, comprising the combination of 'a areas of rails, comprising the combination of a
carriage adapted to rest upon and be moved along carriage adapted to rest upon and be moved along
a track; said _carriage being substantially rec - a track; an operating frame pivotally mounted' 7
on said carriage and adapted to be moved longi
65 tangular in shape; a vertically disposed support
ing arm pivotally connected to eachl of the four tudinally of the rails with respect to said carriage;
corners of said rectangular carriage; a shaft at _heating means mounted on said operating frame
each side of said carriage and journalledat its and including an oxy-fuel gas blowpipe disposed
ends lin the adjacent supporting arms; an oper
over each rail of the track; and gas' controlling
70 ating frame slidably mounted on said shafts; a means centrally mounted on said operating frame
source of high temperature heat carried by said` -for‘ready access by the operator.
operating frame and disposed above the tread
surface of one of the rails of the track; and
PERC'IVAL HUNTER, Jn.l v
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