General Information

Serial #

N/A

Part Number

2

Total Parts

10

AKA

N/A

Patents

N/A

General Description

STEEL SCREWDRIVER HEAD: WOODEN HANDLE

Dimensions

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

Length

24.8 cm

Width

N/A

Height

3.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Tools-Hand

Sub-Category

N/A

Manufacturer

AKA

Robertson

Country

Canada

State/Province

Ontario

City

Milton

Context

Country

Canada

State/Province

Ontario

Period

THIS TYPE OF SCREWDRIVER SET USED C. MID 1930S+

Canada

PETER L. ROBERTSON INVENTED THE SCREWDRIVER HEAD (ANDSCREW HEAD STYLE) WHICH BEARS HIS NAME, AND RECEIVED HIS FIRST CANADIAN PATENT IN 1907. HE OPENED A PLANT IN MILTON, ONT. IN 1908 WHICH REMIANED AN IMPORTANT PART OF THE COMMUNITY'S ECONOMY UNTIL THE CO. WAS BOUGHT OUT BY A LARGE AMERICAN FIRM IN 1968. (REF. 1)

Function

ROBERTSON HEAD SCREWDRIVER USED TO TIGHTEN AND/OR REMOVE ROBERTSON HEAD SCREWS.

Technical

EARLY DESIGN ROBERTSON SCREWDRIVERS, AND SAMPLES OF WOOD, SHEET METAL AND SELF-TAPPING ROBERTSON HEAD SCREWS. AS ORIGINALLY DESIGNED, THE HEADS ARE STRAIGHT SIDED, AND HAVE A PYRAMIDAL POINT: MODERN VERSIONS ARE TAPERED, WITH A SHALLOWER POINT. ROBERTSON SCREWS ARE SELF-CENTERING AND CAN BE DRIVEN WITH ONE HAND. ROBERTSON HEADS ARE TECHNICALLY SUPERIOR FOR MANY APPLICATIONS, ESPECIALLY WHERE POWER IS REQUIRED. THEY HAVE BEEN WIDELY ADOPTED IN FURNITURE MFR. (REF. 1)

Area Notes

Unknown

Details

Markings

"P.L. ROBERTSON CO. LTD./ MILTON, ONT. CANADA/ SOCKET SCREWS NO. 10-14/ PAT'D IN CANADA 1933" stamped on shaft.

Missing

N/A

Finish

.2 SILVER METAL HEAD; WOODEN HANDLE PAINTED BLACK

Decoration

N/A