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x-ray exposure timer

https://mhc.andornot.com/en/permalink/artifact465
Dates
1930
1950
circa 1930-1950
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004049
Description
Timer which consists of a rounded black bakelite case with a flat round metal scale and timer (in seconds 0-12) pointer on the front; the top of the timer has a round white button which stops the x-ray exposure when at 0; the sides of the timer have grooves which enable it to be held; the bottom of…
  1 image  
Accession Number
995004049
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
Description
Timer which consists of a rounded black bakelite case with a flat round metal scale and timer (in seconds 0-12) pointer on the front; the top of the timer has a round white button which stops the x-ray exposure when at 0; the sides of the timer have grooves which enable it to be held; the bottom of the timer has a [?] cm electric cord coming out of it; the top back of the timer has a metal attachment which allows it to be hung.
Number Of Parts
1
Provenance
Queen's University School of X-Ray.
Maker
Liebel-Florsheim Company
Site Made (City)
Cincinatti
Site Made (State)
Ohio
Site Made (Country)
United States of America
Dates
1930
1950
circa 1930-1950
Material
metal: silver
plastic: white; black
Inscriptions
The front of the timer has a dial and scale 0-12 seconds; it also reads, "The Liebel Florsheim Co. Patents No. 1,677,107 1,547,442"; hanging hook has the number 84779 stamped into the back
Permanent Location
Storage Room 0010
0010-F3-1
Dimension Notes
Length: 18.0 cm. x Width: 7.5 cm. x Depth: 7.0 cm.
Condition Remarks
Timer was dusty and dirty; the electric cord was not tested, but the timer will go if set
Copy Type
Original
Reference Types
Person
Book
Reference Comments
Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg MD
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Dentocillin tooth powder

https://mhc.andornot.com/en/permalink/artifact13361
Dates
1950
1953
1950-1953
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020239 a-b
Description
Full bottle of Dentocillin tooth powder; clear oval glass bottle (a) tapers to round opening at top; rectangular brown paper label on front printed with green and brown ink states product information, directions, lot number, expiration date; round brown plastic twist cap (b); bottle is full of whit…
  2 images  
Accession Number
010020239 a-b
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Oral Hygiene
Toothpastes
Toothbrushing
Description
Full bottle of Dentocillin tooth powder; clear oval glass bottle (a) tapers to round opening at top; rectangular brown paper label on front printed with green and brown ink states product information, directions, lot number, expiration date; round brown plastic twist cap (b); bottle is full of white powder.
Number Of Parts
2
Part Names
a - bottle
b - cap
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa).
Maker
Andrew Jergens Co.
Site Made (City)
Cincinatti
Site Made (State)
Ohio
Site Made (Country)
United States of America
Dates
1950
1953
1950-1953
Date Remarks
Printed on artefact
Material
glass: clear
plastic: brown
paper: brown
ink: green, brown
powder: white
Inscriptions
(a) Printed on label: "DENTOCILLIN // TOOTH POWDER // CONTAINING PENICILLIN // EFFECTIVENESS in reducing tooth decay // confirmed in two-year test conducted by out- // standing dental authorities. // DIRECTIONS: Pour a little into the palm, // "take up" on wet tooth brush. Brush teeth tho- // roughly 2 or 3 times a day. // (Must be used regularly to get full benefits) // LOT NO. 043 // EXPIRATION DATE : MAY, 1953"; embossed on top of bottle: "DENTOCILLIN"; on bottom: "JERGENS // C . 0 1 1 // DENTOCILLIN"; (b) engraved on cap: "DENTOCILLIN"
Permanent Location
Storage Room 0010
0010-A5-5 Box 2 Row E
Dimension Notes
a - bottle - Size: Length 13.2 cm x Width 7.5 cm x Depth 4.4 cm
b - cap - Size: Depth 1.9 cm x Diam. 2.9 cm
Condition Remarks
Front label is darkened, faded
Copy Type
Original
Reference Types
Internet
Reference Comments
"Medicine: Dentocillin", Time Magazine, Sept. 4, 1950
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. Boris Kostiuk from Oshawa, Ontario; Dentocillin was introduced in 1950; penicillin was thought to kill the acid-producing bacteria that was blamed for causing cavities; many dentists were not convinced of its efficacy, claiming that since the penicillin did not cause ill-effects, it was probably due to it being rinsed out of the mouth so quickly, in which case it would not have any effect on tooth decay either
Images
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