A hot box is the term used when an axle bearing overheats on a piece of railway rolling stock.[1][2] The term is derived from the journal-bearing trucks used before the mid-20th century. The axle bearings were housed in a box that used oil-soaked rags or cotton (collectively called "packing") to reduce the friction of the axle against the truck frame. When the oil leaked or dried out, the bearings overheated, often starting a fire that could destroy the entire railroad car (and cars coupled to it) if not detected early enough.
The packing and bearing had to be regularly inspected, and packing was often added at major stops. The journal was replaceable, but if neglected, it would heat to a temperature where the babbitt bearing alloy would melt away and leave the brass carrier riding on the steel axle. This would eventually lead to the axle fracturing and the car above falling onto the wheel, which could cause a major derailment of the train. Train worker duties consisted partly of inspecting the train as it ran by, looking for smoke, sparks, or fire. They would then sound the audible report "All Black" to mean the train was not giving off any light energy that would indicate combustion or destruction of the wheel bearings. If the train worker saw "Red" or smoke, he would alert other crew members, or else make an emergency stop to the train to prevent further damage.
When this type of axle box was used, any diesel exhaust smells had to be tracked to their source, as a hot-box sometimes smells similar. Most of the larger railroads use defect detectors to scan passing trains for hot box conditions. Some of these detectors also have "automated mile posts" which send an automated radio signal to the train crew listing the train number, track number, and train speed.
Modern ball, roller or tapered bearings can also overheat, but the likelihood of a roller bearing overheating is usually far smaller than with journal bearings. When modern bearings do go wrong, the balls or rollers and their races fail, generating heat which can ignite fires or be the ignition source of a dust explosion in grain, coal, sawdust, etc.
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Gallery [link]
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Hot box and hot wheel detection system PHOENIX MB (SST Signal and System Technik GmbH)
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A wheelset from a GWR wagon showing a plain, or journal, bearing end
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Journal box
See also [link]
- 1833 Hightstown rail accident (United States)
- 1943 Frankford Junction train wreck (United States)
- 1979 Mississauga train derailment (Canada)
- 1984 Summit tunnel fire (England)
References [link]
- ^ "Hotbox". The Hotbox (North Central Region National Model Railroad Association). Archived from the original on January 7, 2008. https://web.archive.org/web/20080107111410/https://info.detnews.com/hotbox/index.cfm. Retrieved 2008-01-24.[dead link]
- ^ US 4659043
Bibliography [link]
- Railway Age magazine April 1, 1957
- Model Railroader 1980 May 62pp
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https://wn.com/Hot_box
Hot box (game)
Hot box (or simply box) is a non-contact team sport which is similar to ultimate, but played on a smaller field and with fewer players. Like ultimate, the object of the game is to score points by passing the disc into the end zone; however, in Hot Box there is generally only one end zone and it is of much smaller size than an Ultimate end zone. In this way, hot box is a "half-court" (see basketball) variant of ultimate. Because of these reduced requirements, it is often played when not enough players are available to play ultimate.
Rules
For the most part, hot box follows the rules of play of ultimate. The major differences are:
Hot box (appliance)
A hot box is an improvised appliance to heat up food, usually with at least two normal incandescent light bulbs as the heat source, that is frequently found in break rooms on construction sites. The enclosure can be made of wood, metal, or any available material that can enclose the heat. It's especially useful for heating up food that could not otherwise be heated in a microwave oven without decanting the contents. Its presence also means that a large rush of people to use any available microwave ovens is tempered by those who are able to have had their meals heated up via this different method.
See also
References
Podcasts:
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by Kuniva
Hot Box
by: KunivaI see you in my dreams waking up and dread
And then another man is gonna be end tryin not to sweat it
But I can't help it I know I'm selfish I see myself in it
I Malcom the mouth that you welcome fit
I just wanna stay inside and please and in and out when I tease her
She likes when I am deeper she love it when I am deeper
I'm all in giving it my heart hittin every ball
I know they hear em some dime the hall
Apart by destruction is seven that I'm fucking you out
I'm still amazed how you had do my mike
I'm stead enough inside you making it hot
And this little place the concentration
I see you staring right in my face
She love to see me bustin, love to see me comin
She knows we're not exclusive, she excepts I have a woman
I acknowledge that another person will come along and get it
I just want her to remember how I hit it
I can't help stare at you, I know that I'm suitable
Got me thinking like damn what am I've been doing you
Play enough thinking bout you smell what you feel
So fuck what they did to me you are that deal
All day thinking bout giving ways to put it down
Sometimes recording the ways we look and sound
Late night she open the door and let me in
I close it tight behind me let the fucking begin
Sometimes she wanna quick I'm in and out I'm tearing down
Otherwise I'm in it for a minute and it's been a while
Long inside your box my breath control us perfect
I call the shots, no bars no stops
So excited when I pull up and see you
I want you in the first way I wanna feed you this
Baby you've been needing this,
I don't care who had you before they gotta deal with it
Even though I'm sweating the nerve I still chill with it
I am so real with it, I'll with it, heal in it
Romance still with it, talking to and feel in it
She likes it when I'm aggressive, she cuff me fine
And she's thinking out of it,
When she feels I'm teaching on a lesson
The chemistry is enormous we can't ignore it
So let me in and such a short time
The best of friend licking my left,
Preparing my mouth for the love session
I back up and only for protection
And why this talking to me I zone now
Is hard to pay attention 'cause I'm finnin and thinking of you
When hard and get back in it
I gotta have it threaten... take a drink
'Cause the day without that hot box you're walking barely feet
You're my bad habit now look at the ceiling when I'm laying down
Thinking how I wanna lay it down I don't' play around
I just wanna put it down, freak you like nobody else
And when I'm inside you I know that I'm felt
I just wanna bring to my home but this is complicated
They wouldn't be able to take it
The more I bust the more that she last for me
Every time she know I'm coming she just hope enough for me
She can take it all,
I stumble with my words but she never let me fall
She is right there every time my nigga make a call
I try to restrain myself from fucking her
Secretly I know that I'm in love with her
Maybe I'm just sucker her
In my ear I hear phones know that I'm dead wrong
I know that I want it her until they sizzle up my head storm
I know the story of others who got it and told me
And makes me wanna more so I suck her so she adores me
Until we meet again just know that you are the truth
I can't wait to get myself back in the proof
Until we meet again just know that you are the truth
I can't wait to get myself back in that boo
In that boo
She is my bitch is my boo baby
I've been fucking her all the time
We've been fucking for the longest
Love making about this... how we smell
She lot of shit here every time I come and see her