What is this - vernier calliper add-on? - UK Vintage Radio Repair and Restoration Discussion Forum

newlite4 · 20th Jan 2014, 3:46 pm

Can anyone identify this please. I am not sure what it fits onto. The large headed screw (which has a removeable head) adjusts the blade with respect to the vernier scale. The small headed screw fixes the device onto a frame or another measuring instrument. It looks like it belongs on a vernier caliper but is maybe more specialised.
Neil

G6Tanuki · 20th Jan 2014, 4:35 pm

Could it be part of a gunsight? There's a whole range of such devices where the adjustment is to allow individual calibration to a given rifle, then compensate for the natural 'fall' of the round with distance.

Here's a pic of another such example:

http://farm6.*****************/5286/5...5cdc9ec7_z.jpg

lesmw0sec · 20th Jan 2014, 4:52 pm

A complete guess, but possibly part of an old microscope sample positioner?

TrevorM6TSE · 20th Jan 2014, 6:11 pm

Maybe part of a height gauge?

20th Jan 2014, 3:46 pm	#1
newlite4 Octode Join Date: Nov 2003 Location: Bath, Somerset, UK. Posts: 1,805	What is this - vernier calliper add-on? Can anyone identify this please. I am not sure what it fits onto. The large headed screw (which has a removeable head) adjusts the blade with respect to the vernier scale. The small headed screw fixes the device onto a frame or another measuring instrument. It looks like it belongs on a vernier caliper but is maybe more specialised. Neil Attached Thumbnails __________________ preserving the recent past, for the distant future.

20th Jan 2014, 4:35 pm	#2
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,996	Re: What is this - vernier calliper add-on? Could it be part of a gunsight? There's a whole range of such devices where the adjustment is to allow individual calibration to a given rifle, then compensate for the natural 'fall' of the round with distance. Here's a pic of another such example: http://farm6.*****************/5286/5...5cdc9ec7_z.jpg

20th Jan 2014, 4:52 pm	#3
lesmw0sec Octode Join Date: Jul 2009 Location: Carmel, Llannerchymedd, Anglesey, UK. Posts: 1,506	Re: What is this - vernier calliper add-on? A complete guess, but possibly part of an old microscope sample positioner?

20th Jan 2014, 6:11 pm	#4
TrevorM6TSE Heptode Join Date: May 2003 Location: Old Tupton, Derbyshire, UK. Posts: 539	Re: What is this - vernier calliper add-on? Maybe part of a height gauge? __________________ I'd just like to say "Good luck, we're all counting on you"