drawtube

draw·tube

 (drô′to͞ob′, -tyo͞ob′)
n.
A tube that slides within another tube, as in a small hand telescope.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

drawtube

(ˈdrɔːˌtjuːb)
n
(General Engineering) a tube, such as one of the component tubes of a telescope, fitting coaxially within another tube through which it can slide
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

draw•tube

(ˈdrɔˌtub, -ˌtyub)

n.
a tube sliding within another tube, as the tube carrying the eyepiece in a microscope.
[1890–95]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Translations
References in periodicals archive ?
Right: The unit's drawtube is marked in centimeters to help quickly repeat focus with your favorite eyepieces and other accessories.
Meade's 115-Millimeter ED Triplet: This 4.5-inch apochromat packs a lot of bang for the buck
HALF a century ago, a birdwatcher might visit a site near home, meet no other people, and get distant views of birds through a pair of "field glasses" - or, if you had naval links, a drawtube telescope.
bird NOTES WITH JULIAN HUGHES
Q The beginning of our procedure for testing a blood sample for cryoglobulins calls for heating the drawtube at 37[degrees]C for at least one hour.
Overheated cryoglobulin sample
Operating at a maximum of 150 psi air or 750 psi hydraulic, the drawtube force is 7.5X line pressure.
Step chuck collet closer holds parts up to 6"
Drawtube force is 1.9X line pressure and the 22J has precision-bored orientation holes in the base for easy alignment.
Hydraulic collet closer
150 psi air or 750 psi hydraulic, the drawtube force is 7.5X line pressure, yielding a theoretical clamping force of 1688 lbs air and 8438 lbs hydraulic.
Collet closers
They originally started with about a 6-min refill time, but that meant disrupted cycle time that occasionally caused the drawtube to freeze up due to the cooling.
On the inside track of the custom rim industry with Ultra Wheel
My 12 1/2-inch Newtonian has what I consider an adequate 2-inch Crayford-style focuser, though I had to considerably increase the tension on the bearings of its drawtube to reduce its sagging under the QHY16200A's weight.
The QHY16200A CCD Camera: This camera offers a generous 16-megapixel field at an attractive price
The chuck's design eliminates the drawtube needed for hydraulic chucks, creating the additional capacity.
Collet chuck
Each chuck includes a custom-machined drawtube connector for hassle-free installation.
Workholding
Both have % inch of travel, an 8-pound load capacity, a travel brake, and a drawtube with male T-threads for easy attachment of cameras and accessories.
Hot Products 2018
The movement of the wedge causes the wedge-bar to move tangentially, or at a right angle, to the movement of the drawtube and wedge.
Chucks for small batch production
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