Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Dental
Classification
Dental
Accession Number
010020376 a-d
Description
Grey metal dental articulator; rectangular base with screws on either end; rectangular walls with rounded tops rise from ends, with cut-out circles at top with degree measurements on sides; two circles with rectangular cut-outs attached to cylindrical stands, which are attached to base; metal cylin…
Grey metal dental articulator; rectangular base with screws on either end; rectangular walls with rounded tops rise from ends, with cut-out circles at top with degree measurements on sides; two circles with rectangular cut-outs attached to cylindrical stands, which are attached to base; metal cylinder sits between circles; rectangular section comes forward, perpendicularly from cylinder; pointed cylinder comes down from rectangular section, touches round extension from base; two round mounting plates (b, c) screw into base and above section; curved stand (d) mounted between screws on a rectangular base rests at front
Number Of Parts
4
Part Names
a - articulator - Size: Length 23.3 cm x Width 17.0 cm x Depth 14.5 cm
b - plate - Size: Depth 0.6 cm x Diam. 5.8 cm
c - plate - Size: Depth 0.6 cm x Diam. 5.8 cm
d - stand - Size: Length 4.8 cm x Width 4.4 cm x Depth 2.6 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
(a) Engraved on sides: "HANAU ENGINEERING CO. // BUFFALO, N.Y.U.S.A."; engraved on top: "HANAU // PATENT // APPLIED"; embossed on bottom: "HANAU // 16"
Permanent Location
Storage Room 0010
0010-C6-1
Condition Remarks
Metal is tarnished; some screws do not turn
Copy Type
Original
Reference Types
Internet
Reference Comments
"Free Patents Online" website; Dr. Ralph Crawford
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Graham Pettapiece from Victoria, British Columbia; this item's patent was filed in 1921 and patented in 1926; Dr. Crawford describes this as a Kinescope articulator, and states that it was developed primarily for research purposes to prove Hanau's opinion regarding Bennett shift control, or lateral movements