General Information

Serial #

N/A

Part Number

2

Total Parts

2

AKA

N/A

Patents

N/A

General Description

RUBBER BASES; CARDBOARD BOX

Dimensions

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

Length

N/A

Width

N/A

Height

2.0 cm

Thickness

N/A

Weight

N/A

Diameter

3.8 cm

Volume

N/A

Lexicon

Group

Industrial Technology

Category

Industrial equipment

Sub-Category

N/A

Manufacturer

AKA

Williams Gold

Country

United States of America

State/Province

New York

City

Buffalo

Context

Country

Canada

State/Province

Ontario

Period

PROBABLY USED C.1930S-1960S. THIS TYPE OF BASE STILL USED IN 1990S.

Canada

PART OF A COLLECTION OF DENTAL & DENTURE MAKING EQ. ORIGINALLY USED/ ASSEMBLED BY P. HANNAFORD. MR. HANNAFORD WORKED IN THE DENTAL INDUSTRY FOR MANYYEARS. C.1916-17 HE WAS HIRED BY ALLEN & ROLLASTON, LTD., TORONTO. OTTAWA LAB. EST'D. 1929; & LABS. OPERATED IN HAMILTON & MONTREAL. C.1967 A&R LTD. SOLD TO SHAW DENTAL LABS.

Function

TO FORM DENTAL CASTING SPRUE, AN OPENING IN THE INVESTMENT THROUGH WHICH MOLTEN METAL OR ALLOY CAN REACH MOLD AFTER THE WAX HAS BEEN ELIMINATED. THE SPRUE IS FORMED OR BUILT UP FROM THIS BASE.

Technical

COMMON ITEM USED BY ANYONE PRACTICING MOULDING & CASTING TECHNIQUES (IE METALWORKERS, JEWELLERS, DENTISTS & DENTURISTS, ARTISTS, ETC.) THIS BASE PROVIDES WORKING SURFACE & SUPPORT ON WHICH SPRUES CAN BE BUILT UP. THE RECESS PRODUCED BY THE BASE PROVIDES A FUNNEL FOR THE INTRODUCTION OF METAL INTO THE PLASTER MOLD .2 DESIGNED FOR USE WITH CENTRIFUGE-METAL ENTERS MOLD MORE QUICKLY & UNDER PRESSURE- MORE DETAIL

Area Notes

Unknown

Details

Markings

'WILLIAMS' CAST IN RAISED PRINT ON UNDERSIDE/.2 BOX AS PER.1, WITH ADDITIONAL TEXT 'FOR CENTRIFUGAL CASTING'

Missing

NONE

Finish

DULL, HARD BLACK RUBBER CUP

Decoration

N/A