Hendey 14x30 beginning adventure, ser 33803?
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  1. #1
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    Default Hendey 14x30 beginning adventure, ser 33803?

    Hello all, and thank you for all the useful posts. Iím about to take delivery of a Hendey 14x30 gear head. Reading through the posts here, the serial number should be on the flats of the ways but while my eyesight isnít what it used to be, Iíve made a sincere effort and cannot find it there. There is however, a stamping riveted above the motor speed selection plate that reads ĒSER 33803Ē. This machines history is completely unknown, the prior owner bought a building in New York, the machine came with it. It needs a few things, and a thorough inspection. If anyone knows where I can find a dial and handwheel for the compound cross slide please message me. Iíve found one on EBay for a 12Ē machine but Iím not certain itís a match to swap in. Itís also missing the cover in front of the monstrous Delco 3ph 5hp motor. Monstrous is unkind, itís a thing of beauty in its own right. Iím also curious about the spindle taper. In the literature, there were a variety of options, this one is an L , but which L? This machine has me very excited, can you tell? The more I read the more Iím finding how special it is.

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    The machine may have been rebuilt and they planned off the number. This is a guess. I did find this for you.http://vintagemachinery.org/pubs/430/3521.pdf

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    Quote Originally Posted by Richard King View Post
    The machine may have been rebuilt and they planned off the number. This is a guess. I did find this for you.http://vintagemachinery.org/pubs/430/3521.pdf
    Scanned (and owned) by me

    33803 from early 1942 and if L type, that spindle nose will be an L1 - readily identified by its 7.5" OD notched draw back nut to left of chuck. Member Walter A sells hook spanners of delightful quality if needed

    FS: "L" Series Spanners

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    Mrmoto9:

    Hendey lathe No.33803, a 14x30, 12 Speed, Geared Head model, was one of five identical lathes ordered on April 21, 1942. The Serial
    Numbers were: 33680, 33700, 33709, 33721 and 33803. The original owner was the Eclipse Aviation Division, Bendix Aviation Corporation,
    no city or state was listed. While this lathe is a standard 12 Speed model, it was shipped with a two speed motor that gave it 24 speeds. The motor specifications were: Frame 324, 5HP, 900/1800RPM, 440Volts, 60Cycles, 3Phase. Clutch Pulley speed was 600/1200RPM. There are still some Patterns, Castings and Repair Parts left in inventory for this lathe. All of the original drawings are still in the files, so parts can be made if required. I will check with a friend of mine about the motor cover and the Compound Rest parts you need.

    Hendeyman

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    Quote Originally Posted by Mrmoto9 View Post
    ..the prior owner bought a building in New York, the machine came with it.
    In line with Hendeyman's first-owner history + a bit of Google-fu, note that said firm operated (at least...) out of Teterboro, NJ, so it may have been moved but once.

    With 24-speeds built-in at the factory, you need no VFD, only a decent RPC + step-up transformer to preserve / restore all existing controls and both speed ranges.

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    Thank you, all of you. The step up transformer is a great idea. I’ve been looking for a single phase 5 HP motor, and have found one but maybe going with the rpc and transformer is the way to go. I’ve had both the electronic, and rpc and have had good results with both. Both never used one at 440.

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    Quote Originally Posted by Mrmoto9 View Post
    Thank you, all of you. The step up transformer is a great idea. I’ve been looking for a single phase 5 HP motor, and have found one but maybe going with the rpc and transformer is the way to go. I’ve had both the electronic, and rpc and have had good results with both. Both never used one at 440.
    There are figures .. and other figures . .as to what "real world" rating a transformer needs to have to be effective for machine-tool loads and an RPC.

    One workable rule-of-thumb to insure it isn't too small as to restrict max power or run overly hot is two KVA per load HP. That isn't the same as laboratory physics - the KVA to "motor HP" calculations online come out to only a bit over 5 KVA for a 5HP load motor of typically less-than-perfect efficiency and power factor.

    But it WORKS better for easier starting and at sustaining higher loads smoothly to go a bit larger and utilize - for example - a stock 10 or 12 KVA 3-Phase transformer off an RPC with 10 HP idler connected for 440 VAC use.

    My one, for up to 7 HP loads - is a Phase-Craft start/run control box + 10 HP Weg idler. OTOH, the transformer is a near-as-dammit 1:1 EGS Delta-in, Wye-out "drive isolation" transformer so I can take the Delta off RPC or Phase-Perfect and derive a new "local" Neutral.

    "Wye" is optional. I don't think you have a need for a Neutral, your machine? I'm simply allergic to both floating AND "corner-grounded" Delta.



    I also don't need 440, but it does have the advantage of requiring lower-ampacity wire, and running dual-Voltage motors a tad cooler than they run in their 220 V configuration, so "run what you got".

    With THIS lathe, you still have the advantage of LOTS of geared-ratio selections, so should not suffer at 7.5 HP idler and 7.5 KVA, and might "get by" even comfortably so with 5 and 5 with an unloaded start.

    Transformers don't waste much, but they can briefly look like pretty heavy starting loads, so don't grossly oversize one, either.

    NB: IF.. you have no other 3-P loads @ 220/240 VAC? Such as coolant-pump replaced with a 1-P unit (which I do..) then a single-phase transformer on the input side, RPC's idler run @ 440 VAC off its secondary works, too.

    As a 2:1 step-up ratio is better-suited to a full-isolation transformer than a boost "autotransformer", used 3-Phase ones may be easiest to source locally at good prices. They tend to be HEAVY, so shipping can be expensive.

    Either way - you'll also need (up to..) "600 Volt Class" goods - (wire, disconnects, fuses, CB, and such) - on the 440 VAC side, whereas the input ~ 240 VAC is still within the (up to..) 300 V class.

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    two KVA per load HP
    Acme specified thus on the new 3 KVA General Purpose Dry Type Three Phase I bought in 2003 - for 1.5 HP four speed - flawless zero issue performance for 16 years. This of course a step down used as a step up

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    Quote Originally Posted by johnoder View Post
    Acme specified thus on the new 3 KVA General Purpose Dry Type Three Phase I bought in 2003 - for 1.5 HP four speed - flawless zero issue performance for 16 years. This of course a step down used as a step up
    Aye. The "physics" say HP X .746 for KVA, ergo 5 HP is only 3.73 KA.

    ..before one gets into motor efficiency, power-factor, starting loads, response/stability under working load changes in the cut...and other real-world stuff.

    As "physics" of another sort were taken orally back in the day only for cases where one was badly constipated?

    Far less "stuff" to deal with at a 2:1 ratio!



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