Donegal Railway Heritage Center, Heike Thiele / Heike Thiele [CC BY-NC-SA]
Provenance/Rights: Donegal Railway Heritage Center, Heike Thiele / Heike Thiele [CC BY-NC-SA]

Stoneware standard line insulator

Object information
Donegal Railway Heritage Centre
Contact the institution

Brown Insulator with round top inner

Brown Insulator with round top used on a telegraph pole on former County Donegal Railway...The insulator is embossed with the letters..8 VARLEY'S PATENT..1870 telegraph insulator from England in a Salt Glaze U-1364 includes mark: "8 Varley's Patent". ....These were uniquely made with threads but designed to help the cement hold firmly to the inner cup. The inner cup according to the patent drawings in Keith Neal's book are threadless- the pin was always cemented into the inner cup. So, this is a unique style insulator that was made during the transition period of strict threadless to threaded pin-type insulators.

Source
museum-digital:ulster
By-line
Heike Thiele
Copyright Notice
© Donegal Railway Heritage Center, Heike Thiele & Heike Thiele ; Licence: CC BY-NC-SA (https://creativecommons.org/licenses/by-n
Keywords
Keramik, Elektrik, Insulator

Metadata

File Size
532.74kB
Make
BlackBerry
Camera Model Name
BBB100-5
ISO
143
Create Date
2021:06:23 11:44:50.230700
Image Size
4056x3040
Exif Byte Order
Big-endian (Motorola, MM)
Orientation
Horizontal (normal)
X Resolution
72
Y Resolution
72
Resolution Unit
inches
Modify Date
2021:06:23 11:44:50.230700
Y Cb Cr Positioning
Centered
Copyright
© Donegal Railway Heritage Center, Heike Thiele & Heike Thiele ; Licence: CC BY-NC-SA (https://creativecommons.org/licenses/by-nc-sa/4.0/)
Exposure Time
1/60
F Number
2.0
Exposure Program
Program AE
Components Configuration
Y, Cb, Cr, -
Exposure Compensation
0
Metering Mode
Center-weighted average
Flash
Off, Did not fire
Focal Length
4.5 mm (35 mm equivalent: 25.0 mm)
Flashpix Version
0100
Color Space
sRGB
Exif Image Width
4056
Exif Image Height
3040
Interoperability Version
0100
Scene Type
Directly photographed
Exposure Mode
Auto
White Balance
Auto
Scene Capture Type
Standard
Encoding Process
Progressive DCT, Huffman coding
Bits Per Sample
8
Color Components
3
Y Cb Cr Sub Sampling
YCbCr4:2:0 (2 2)
Aperture
2.0
Shutter Speed
1/60
Light Value
7.4

Contact

Artist
Heike Thiele
Creator City
Donegal Town
Creator Address
Tyrconnell Street
Creator Postal Code
F94EE
Creator Work Email
info@dongalrailway.com
Creator Work Telephone
00353 (0) 749722655
Creator Work URL
http://donegalrailway.com/
Attribution Name
Heike Thiele
Owner
Donegal Railway Heritage Center, Heike Thiele
Usage Terms
CC BY-NC-SA

Linked Open Data