General Information

Serial #

N/A

Part Number

2

Total Parts

13

AKA

N/A

Patents

N/A

General Description

Metal casing and connector with a glass lens and synthetic cable covering.

Dimensions

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

Length

27.0 cm

Width

23.0 cm

Height

16.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Exploration and Survey

Category

Survey equipment

Sub-Category

N/A

Manufacturer

AKA

Gerber

Country

United States of America

State/Province

Connecticut

City

Hartford

Context

Country

Canada

State/Province

Ontario

Period

C.1977-1990

Canada

AMERICAN-MADE EQUIPMENT USED BY CANADIAN FIRM, NORTHWAY MAPPING TECHNOLOGY OF TORONTO, IN GENERATION OF COMPUTERIZED MAPS OF CANADA. IN 1990 IT WAS PURCHASED BY GENTIAN ELECTRONICS IN ORDER TO REFURBISH & OPERATE EQUIPMENT. BUT THIS DID NOT OCCUR AS TECHNOLOGY WAS SLOW & OUTDATED BY 1990'S STANDARDS.

Function

A plotting head using an intense light shined through a lens to expose photosensitive material on a plotting drum.

Technical

EARLY DRUM PLOTTER DESIGNED FOR ENGINEERING DRAFTING BUT ALSO SUITABLE FOR OTHER COMPUTER APPLICATIONS. IT REPRESENTS SIGNIFICANT CHANGE FROM & IMPROVEMENT OVER EARLIER PLOTTERS, & IS FROM PERIOD WHEN APPLICATION OF MINI COMPUTERS WAS BEING WIDELY EXTENDED TO CONTROL OF PROCESSES & OPERATIONS SUCH AS TECHNICAL DRAWING. IT CONTAINED STATE-OF-THE-ART MINI COMPUTER & DRUM-CONTROLLING SOFTWARE & MOTORS.

Area Notes

Unknown

Details

Markings

Printed on the proper back of the unit: "[logo]/ MODEL OEHF-A/ THE GERBER SCIENTIFIC INSTRUMENT COMPANY/ HARTFOR, CONNECTICUT/ THIS EQUIPMENT PROTECTED BY ONE OR MORE OF THE FOLLOWING PATENTS: U.S. PAT. NO. 1,547,305 3,330,182/ 3,348,713 U.K. 1,145,062 1,175,493 GR. 1,547,305/ FR. 1,489,577 1,560,888 AND OTHER U.S. AND FOREIGN/ PATENTS PENDING./ NOTE: THIS COVER MUST BE IN PLACE/ WHEN PHOTO PLOTTING./ REMOVE WHEN PEN PLOTTING."/ On the manufacturer's plate: "[logo] THE GERBER SCIENTIFIC/ INSTRUMENT CO./ HARTFORD, CONN. U.S.A./ MODEL S 48436/ SER. NO. OEHFA 13"/ On the red label on the connector: "P-844"

Missing

Appears complete

Finish

Predominantly black casing and cable covering with some silver-coloured metal parts and a grey metal connector with a red label.

Decoration

N/A