General Information

Serial #

N/A

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

STEEL & SYNTHETIC CASING; SCALE PRINTED ON PAPER LABEL; RUBBER CAP OVER ROD END. CW ORIGINAL OILED PAPER BOX.

Dimensions

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

Length

12.0 cm

Width

N/A

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

5.5 cm

Volume

N/A

Lexicon

Group

Metrology

Category

Miscellaneous

Sub-Category

N/A

Manufacturer

AKA

Auburn

Country

United States of America

State/Province

Rhode Island

City

Providence

Context

Country

Canada

State/Province

Unknown

Period

THIS TYPE OF INSTRUMENT USED C. 1960S +.

Canada

Unknown

Function

USED TO MEASURE THE SPEEDS OF SHAFTS, MOTORS, ENGINES, AND OTHER REVOLVING OR ROTATING MACHINERY AND EQUIPMENT.

Technical

DEVICE COMMONLY USED BY MACHINISTS, FARMERS, ETC. TO MEASURE THE SPEED OF ROTATING DEVICES LIKE PULLEYS, GEARS, ETC. IT OPERATES IN BOTH CLOCKWISE & COUNTER- CLOCKWISE DIRECTIONS. ACCURACY IS ABOUT 10% AT BEST. SUCH DEVICES HAVE BEEN AROUND FOR OVER 100 YEARS, AND ARETECHNICALLY QUITE SIMPLE.

Area Notes

Unknown

Details

Markings

" AUBURN MACHINE CO./ PROVIDENCE, R.I./ PATENT NO. 138152 " and scale labelled "500 1000 1500 2000 2500 3000/ REVOLUTIONS PER MINUTE " printed on sleeve inside tachometer tube. Box top reads " "Standard" TACHOMETER/ [illustration]/ Speed Indicator- for read-/ ing directly, instantly, in/ either direction, exact/ speeds of shafts, motors,/ engines and other revolv-/ ing and rotating machinery/ and equipment./ AUBURN MACHINE COMPANY. PROVIDENCE 5, R.I. ". " Standard"/ TACHOMETER/ INDICATES R.P.M. SPEEDS/ DIRECTLY. INSTANTLY/ PATENT APPLIED FOR 87-2965 " printed on box ends. Following text appears on original box:: " CHECK directly . instantly R.P.M. SPEEDS OF/ SHAFTS SEPARATORS CONVEYORS/ WHEELS CENTRIFUGES LATHES/ PULLEYS CHURNS PLANERS/ MOTORS GENERATORS MILLERS/ ENGINES MILLS GRINDERS/ PUMPS WASHERS DRILLS/ SAWS GRADERS PRESSES/ MIXERS ROTATORS HAMMERS ". printed on back panel of box./ " A Timesaver in.../ SHOP and FACTORY for mechanics, electricians, service/ men, engineers, inspectors, testers, time study men./ HOME WORKSHOP for checking speeds of motors, gen-/ erators, lathes, saws, drill presses, and grinders./ FARM USE for adjusting speeds of gasoline engines, tractor/ pulleys, jack shafts, saws, pumps, elevators, mixers and grinders./ INCREASE PRODUCTION- DECREASE MAINTENANCE- PROLONG LIFE OF EQUIPMENT/ CHECK SPEEDS ACCURATELY WITH A "STANDARD" TACHOMETER ". printed on side panel./ " Hardened steel point for/ centered shafts . Remov-/ able rubber tip for shafts/ without centers . Range/ 500-3,000 RPM . Sealed/ against dust- requires no/ lubrication . Weight 5 oz. " & illustration of instrument printed on side panel./ Price sticker marked " 56-7010/ CANADIAN TIRE/ $4.89/ EACH " applied to one end panel.

Missing

NONE.

Finish

DARK GREY ENAMEL FINISH ON TACHOMETER; SCALE PRINTED ON YELLOW PAPER SLEEVE. ORANGE BOX HAS BLACK ILLUSTRATIONS & TEXT.

Decoration

N/A