General Information

Serial #

N/A

Part Number

1

Total Parts

9

AKA

N/A

Patents

N/A

General Description

METAL, WOOD, GLASS, PAPER, SYNTHETIC

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

153.0 cm

Width

61.0 cm

Height

167.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Industrial equipment

Sub-Category

N/A

Manufacturer

AKA

TAYLOR HOBSON

Country

England

State/Province

Unknown

City

Leichester

Context

Country

Worldwide

State/Province

Unknown

Period

PROBABLY SINCE 1940'S; THIS ONE USED BY ALGONQUIN COLLEGE SINCE 1960'S.

Canada

USED AT ALGONQUIN COLLEGE, OTTAWA TO INSTRUCT STUDENTS IN METAL WORKING COURSES THE PRINCIPLES OF MACHINING.

Function

USED TO MEASURE THE TEXTURE OF SURFACES. IT MEASURES THE ROUGHNESS OF EXTERNAL FLAT AND CYLINDRICAL SURFACES. THE RANGE OF IRREGULARITIES IT MEASURES FALLS IN THE RANGE OF TEXTURES NORMALLY ASSOCIATED WITH GRINDING, FINE TURNING & MILLING, & FINE FINISHING PROCESSES LIKE HONING & LAPPING. [REF.1]

Technical

FIRST ELECTRONIC DEVICE DEVELOPED FOR RECORDING VERY PRECISELY THE SURFACE TEXTURE OF MACHINED SURFACES. IT WAS A VERY 'HIGH-TECH' DEVICE IN IT'S DAY [1930'S & 1940'S WHEN IT WAS FIRST PRODUCED].

Area Notes

Unknown

Details

Markings

VARIOUS PLATES: 'TAYLOR-HOBSON/ 112/245'/ 'TALYSURF/ REG. TRADE MARK/ TAYLOR-HOBSON SURFACE METER/ PATENTS APPLIED FOR'/ 'TALYSURF/ Reg. Trade Mark/ 112/164-SI-63/ Made in England by/ TAYLOR TAYLOR & HOBSON LTD/ Patent Applied for/ X50 X200'/ 'TALYSURF/ REGD TRADE MARK/ AMPLIFIER UNIT/ 112/167-56'/ 'UNIT MADE FOR/ TAYLOR TAYLOR & HOBSON LTD/ BY/ DUBILIER CONDENSOR CO (1925) LTD'/ 'TALYSURF/ REGD TRADE MARK/ POWER UNIT/ 112/166-56'/ '112/02'/ 'TALYSURF/ Reg. Trade Mark/ 112/174-295/ Made in England by/ TAYLOR TAYLOR & HOBSON LTD./ Patents Applied for'/ ON METER FACE: 'AVERAGE ROUGHNESS/ MICRO-INCHES/ TAYLOR-HOBSON/ CODE 112/182/ TALYSURF/ TRADE E E C [LOGO] MARK'/ RECORDING BOX: 'EVERETT EDGCUMBE/ LONDON'/ 'SWITCH/ STUD/ 2/3/4/5/6/ RECORDER/ MAGNIFICATION/ PEN/ STYLUS/ 2,000 [TO] 40,000/ DISTORTION/ RATIO/ 10 [TO] 200/ AV. METER/ FULL SCALE VALUE/ IN MICRO-INCHES/ 150 [TO] 7.5'

Missing

APPEARS COMPLETE

Finish

BLACK CRINKLE FINISH ON METAL/ STAINED & VARNISHED WOOD

Decoration

N/A