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29 records – page 1 of 3.

Dates
1925
1930
circa 1925-1930
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.494.1 a-e
Description
A Coolidge tube (a) with a somewhat irregular shape; at one end is a series of circular discs (e), probably for rapid heat diffusion; the glass tube is cylindrical on either side of a bulbous sphere that is just off-centre; at the other end of the tube is a fuse-like, threaded end piece; the intern…
  1 image  
Accession Number
1969.494.1 a-e
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
A Coolidge tube (a) with a somewhat irregular shape; at one end is a series of circular discs (e), probably for rapid heat diffusion; the glass tube is cylindrical on either side of a bulbous sphere that is just off-centre; at the other end of the tube is a fuse-like, threaded end piece; the internal mechanism can be seen; the tube rests on a wooden mount (b) with two additional wooden archlike pieces to hold it in place (c,d); Note: item is missing.
Number Of Parts
5
Part Names
a - Coolidge tube - Size: Length 47.0 cm
b - wooden mount - Size: Length 38.3 cm x Width 15.1 cm x Depth 18.5 cm
c - wooden arch - Size: Length 9.8 cm x Depth 3.5 cm
d - wooden arch - Size: Length 10.1 cm x Depth 3.6 cm
e - discs - Size: Depth 5.7 cm x Diam. 7.5 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
General Electric
Site Made (City)
Toronto
Site Made (State)
Ontario
Site Made (Country)
Canada
Dates
1925
1930
circa 1925-1930
Date Remarks
Last patent date printed on tube is 1922
Material
glass: clear; translucent violet
metal: silver
wood: dark brown
Inscriptions
On tube: two concentric circle; on the innermost circle is the GE logo; around that is printed, "COOLIDGE // TUBE"; under that is "R144"; also on tube: "PATENTED // 1912 1913 1914 1915 // 1918 1920 1921 1922 // THIS TUBE IS NOT LICENSED TO BE // RE-EXHAUSED [sic] OR REPAIRED NOR IS THE // METAL HEREIN CONTAINED LICENSED TO // BE USED EXCEPT IN THIS PARTICULAR // TUBE. // CANADIAN GEN. ELEC. CO. LTD // TORONTO —CANADA"; at bottom, just below the broken glass part is the number "V44019" inscribed on the rod.
Permanent Location
Storage Room 0010
0010-F3-8
Temporary Location
Item is missing.
Condition Remarks
Glass broken at one end.
Copy Type
Original
Reference Types
Photo
JPG
Reference Comments
CD #UHN
Research Facts
Self-rectifying radiator-type Coolidge tube; an advance on universal type.
Images
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Dates
1911
1921
circa 1911-1921
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.498.1 a-e
Description
Coolidge tube (a), shaped like a glass retort, with a bulb at one end; a piece broken off (b) has a screw thread at one end; the tube rests on a wooden mount (e); two wooden half-circles (c,d) affix the tube firmly to the mount.
  1 image  
Accession Number
1969.498.1 a-e
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
Coolidge tube (a), shaped like a glass retort, with a bulb at one end; a piece broken off (b) has a screw thread at one end; the tube rests on a wooden mount (e); two wooden half-circles (c,d) affix the tube firmly to the mount.
Number Of Parts
5
Part Names
a - tube - Size: Length 37.0 cm x Diam. 17.8 cm
b - broken-off tube - Size: Length 21.0 cm x Diam. 2.9 cm
c - half-circle - Size: Length 10.0 cm x Depth 4.0 cm
d - half-circle - Size: Length 10.0 cm x Depth 4.0 cm
e - mount - Size: Length 18.0 cm x Width 15.0 cm x Depth 18.0 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
General Electric Co. Ltd.
Site Made (City)
Toronto
Site Made (State)
Ontario
Site Made (Country)
Canada
Dates
1911
1921
circa 1911-1921
Date Remarks
Patent dates given on metal plate on tube.
Material
metal: silver
glass: clear; translucent violet
wood: brown
Inscriptions
On metal plate: "PATENTED // 1911, 1912, 1914, 1915, 1916 // 1917, 1918, 1919, 1920, 1921 // This tube is not licensed // to be re-exhausted or // repaired nor is the // metal herein contained // licensed to be used // except in this particular // tube // CANADIAN GEN. ELEC. CO. LTD. // TORONTO, CANADA"; inside a circle: the centre has "CGE" with "COOLIDGE // TUBE" around the outside; below that is "125".
Permanent Location
Storage Room 0010
0010-F4-8
Condition Remarks
One end of tube broken off; #2: glass is broken; metal is oxidized
Copy Type
Original
Reference Types
Photo
JPG
Reference Comments
CD #UHN
Images
Less detail
Dates
1913
circa 1913
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.499.1
Description
Glass tube with a large bulb in the centre containing X-ray apparatus (a); on the underside of the bulbous section are two tubular projections extending out, one straight and the other at right angles; each contains a metal rod; the tube rests on a wooden mount (b) that has two half-circular wooden…
  1 image  
Accession Number
1969.499.1
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Diagnostic Imaging
Radiography -- instrumentation
MM= Radiography -- tube
Description
Glass tube with a large bulb in the centre containing X-ray apparatus (a); on the underside of the bulbous section are two tubular projections extending out, one straight and the other at right angles; each contains a metal rod; the tube rests on a wooden mount (b) that has two half-circular wooden arches (c,d) that go over the tube and affix it firmly to the mount; Note: item is missing.
Number Of Parts
4
Part Names
a - tube - Size: Length 53.3 cm x Diam. 15.9 cm
b - mount - Size: Length 38.4 cm x Width 14.9 cm x Depth 17.5 cm
c - half-circle - Size: Length 9.8 cm x Width 2.2 cm x Depth 3.8 cm
d - half-circle - Size: Length 9.8 cm x Width 2.2 cm x Depth 3.8 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Macalister, Wiggins & Co. (?)
Dates
1913
circa 1913
Date Remarks
The first Coolidge tube was produced in 1913.
Material
metal: silver
glass: clear
wood: brown
Inscriptions
On glass tube: "MACALISTER, WIGGINS & CO."
Permanent Location
Storage Room 0010
0010-F3-8
Temporary Location
Item is missing.
Copy Type
Original
Reference Types
JPG
Reference Comments
CD #UHN
Research Facts
In the first Coolidge tube, P/electrons were emitted from a tungsten wire filament that was itself the cathode. Named for H.D. Coolidge. The glass protrusions contain activating or regenerating devices that cause occluded gases to be liberated, thereby producing more potential electrons and softening the resultant X-ray emission. The cathode is "cupped," causing the electron beam to be focused on the target material.
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dental x-ray tube

https://mhc.andornot.com/en/permalink/artifact430
Dates
1920
circa 1920
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004014
Description
X-ray tube which consists of a cylindrical outer tube made of plastic with a glass inner tube; within the glass tube is a heavy metal rod and a copper section; the top of the tube has a piece of cork holding two wires; the bottom of the tube has the end of the metal rod coming out of it
  2 images  
Accession Number
995004014
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography, Dental -- instrumentation
MM= Radiography -- tube
Description
X-ray tube which consists of a cylindrical outer tube made of plastic with a glass inner tube;
within the glass tube is a heavy metal rod and a copper section; the top of the tube has a
piece of cork holding two wires; the bottom of the tube has the end of the metal rod coming
out of it
Number Of Parts
1
Maker
Dunlee Corporation
Site Made (City)
Bellwood
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1920
circa 1920
Date Remarks
1920's or 1930's
Material
metal: dark grey; brown
plastic (or laminated fabric?): brown; black
glass: clear
cork: beige
Inscriptions
Label on outside tube reads, "Dunlee X-Ray Tube Type 042 Focus T MM Anode No. 12204"
Permanent Location
Storage Room 0010
0010-F4-11
Dimension Notes
Length: 21.0 cm. x Width: 6.5 cm. x Depth: 6.2 cm.
Condition Remarks
The tube was dusty and dirty; the outer coverings of the two wires leading from the inner tube
are cracked
Copy Type
Original
Reference Types
Person
Book
JPG
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.; Bernie Ziomkiewicz; CD #4
Research Facts
Likely used as a dental x-ray tube due to its being smaller than the average x-ray tube
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diagnostic tube

https://mhc.andornot.com/en/permalink/artifact460
Dates
1930
circa 1930
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004044
Description
Diagnostic tube which consists of a cylindrical black plastic tube with a funnel-shaped attachment at the top and a metal screw attachment (like a light bulb) at one end and a ridged metal attachment made up of 15 pieces of flat metal with six holes stamped into each of them at the other end (remov…
  1 image  
Accession Number
995004044
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Diagnostic tube which consists of a cylindrical black plastic tube with a funnel-shaped attachment
at the top and a metal screw attachment (like a light bulb) at one end and a ridged metal
attachment made up of 15 pieces of flat metal with six holes stamped into each of them at the
other end (removable); the funnel-shaped opening shows an inner glass tube (broken) with cylindrical
metal pieces within
Number Of Parts
1
Dates
1930
circa 1930
Date Remarks
1930's
Material
metal: black; silver
plastic
glass
Inscriptions
Label at one end reads, "Patented 1590971 2132174"
Permanent Location
Storage Room 0010
0010-F4-10
Dimension Notes
Length: 40.0 cm. x Width: 16.0 cm. x Depth: 14.0 cm.
Condition Remarks
Outer tube was dirty and dusty; inner glass tube has been broken and many pieces are loose
inside
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; CD #4
Research Facts
Diagnostic tube for taking pictures; Coolidge type tube for generating x-rays; the metal disks
at one end are for air-cooling the tube; a clip is attached to these which is for a high voltage
lead; the light-bulb-like end is the filament contact
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rectifier tube

https://mhc.andornot.com/en/permalink/artifact433
Dates
1930
circa 1930
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004017
Description
Therapy rectifier which consists of a cylindrical black glass tube with a screw attachment (similar to a light bulb) and a metal section at one end and a similar screw attachment and ridged metal section at the other end
  1 image  
Accession Number
995004017
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Therapy rectifier which consists of a cylindrical black glass tube with a screw attachment
(similar to a light bulb) and a metal section at one end and a similar screw attachment and
ridged metal section at the other end
Number Of Parts
1
Maker
Philips (Norelco)
Site Made (City)
New York
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1930
circa 1930
Date Remarks
1930's
Material
metal: silver
glass: black
Inscriptions
Label on lthe end of the tube reads, "Philips Metalix - Valve Nr. X6045 Voltage 125 kv peak
Made in U.S.A. Saturation curr.: 200 mA filament curr: 7.5 A 14.5 V Saturation curr.: 400
mA filament curr: 8.0 A 16.2 V. Saturation curr.: 1000 mA filament curr.: 8.5 A 18.0 V for
short times."
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 54.0 cm. x Width: 10.0 cm.
Condition Remarks
The tube was dusty and dirty
Copy Type
Original
Reference Types
Person
JPG
Reference Comments
Nancy Chisholm; CD #4
Research Facts
Identified as having a therapeutic function
Images
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rectifier tube

https://mhc.andornot.com/en/permalink/artifact434
Dates
1930
circa 1930
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004018
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre which has a plastic capped end with one metal rod sticking out at one end and a plastic capped end with two metal rods sticking out at the other end; there are cylindrical metal pieces within the glass tube…
  1 image  
Accession Number
995004018
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre
which has a plastic capped end with one metal rod sticking out at one end and a plastic
capped end with two metal rods sticking out at the other end; there are cylindrical metal
pieces within the glass tube itself
Number Of Parts
1
Maker
Machlett Laboratories Inc. (likely) (see 995.004.019)
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1930
circa 1930
Material
metal: silver
glass: clear
plastic: black
Inscriptions
Metal piece inside the glass has stamped into it, "G12059"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 27.5 cm. x Width: 8.5 cm.
Condition Remarks
The tube was dusty and dirty
Copy Type
Original
Reference Types
Person
Book
JPG
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.M. Grigg, M.D.; CD #4
Images
Less detail

rectifier tube

https://mhc.andornot.com/en/permalink/artifact435
Dates
1930
circa 1930
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004019
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre which has a plastic capped end with one metal rod sticking out at one end and a plastic capped end with two metal rods sticking out at the other end; there are cylindrical metal pieces within the glass tube…
  1 image  
Accession Number
995004019
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
High voltage rectifier tube which consists of a cylindrical glass tube with a rounded centre
which has a plastic capped end with one metal rod sticking out at one end and a plastic
capped end with two metal rods sticking out at the other end; there are cylindrical metal
pieces within the glass tube itself
Number Of Parts
1
Maker
Machlett Laboratories Inc.
Site Made (City)
Springdale
Site Made (State)
Connecticut
Site Made (Country)
United States of America
Dates
1930
circa 1930
Material
metal: silver
glass: clear
plastic: black
Inscriptions
Metal piece inside the glass has stamped into it, "F80404"; there are fragments of a label on
one plastic end from which can be read "Machlett Valve ... Maximum Voltage"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 27.5 cm. x Width: 8.5 cm.
Condition Remarks
The tube was dusty and dirty; the black plastic cap at the end with two rods sticking out
is cracked
Copy Type
Original
Reference Types
Person
Book
JPG
Reference Comments
Nancy Chisholm; "The Trail of the Invisible Light" by E.R.M. Grigg, M.D.; CD #4
Images
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rectifier tube

https://mhc.andornot.com/en/permalink/artifact445
Dates
1969
circa 1969
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004029
Description
Rectifier valve which consists of a cylindrical glass tube with cylindrical metal pieces inside; the top of the glass tube has a cylindrical metal rod sticking out of it; the bottom of the glass tube has a rounded black plastic piece around a metal rod and two white porcelain pieces which allow it …
  1 image  
Accession Number
995004029
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
Radiography -- instrumentation
MM= Radiography -- tube
Description
Rectifier valve which consists of a cylindrical glass tube with cylindrical metal pieces inside;
the top of the glass tube has a cylindrical metal rod sticking out of it; the bottom of the
glass tube has a rounded black plastic piece around a metal rod and two white porcelain pieces
which allow it to be attached to something else
Number Of Parts
1
Maker
Eureka
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1969
circa 1969
Date Remarks
Used until the 1960's
Material
metal: silver
plastic: black
glass: clear
porcelain: white
Inscriptions
Manufacturer's label reads, "Eureka X Ray. Type EV-5-75 9.7 to 12.2 Fil. Volts 12.4 to 14.2
Fil. Amps."
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 31.0 cm. x Width: 8.5 cm.
Condition Remarks
The valve was dirty and dusty
Copy Type
Original
Reference Types
Person
Book
JPG
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, M.D.; CD #4
Images
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rectifier tube

https://mhc.andornot.com/en/permalink/artifact449
Dates
1930
circa 1930
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
995004033
Description
Therapy rectifier tube which consists of a cylindrical clear glass tube with another glass tube within as well as wires; the bottom of the tube is sealed with a rounded metal section and ends in a screw attachment (similar to a light bulb); the top of the tube has a heavy ridged metal section with …
  1 image  
Accession Number
995004033
Collection
Queen's University School of X-Ray Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
MeSH Heading
MM= Radiography -- tube
Description
Therapy rectifier tube which consists of a cylindrical clear glass tube with another glass
tube within as well as wires; the bottom of the tube is sealed with a rounded metal section
and ends in a screw attachment (similar to a light bulb); the top of the tube has a heavy
ridged metal section with another screw attachment at the top
Number Of Parts
1
Maker
Philips (Norelco)
Site Made (City)
New York
Site Made (State)
New York
Site Made (Country)
United States of America
Dates
1930
circa 1930
Date Remarks
1930's ?
Material
metal: silver; black
glass: clear
Inscriptions
Manufacturer's label at base reads, "Philips Metalix-Valve Nr. X5975 Voltage 115 kv peak
Made in U.S.A. Saturation curr.: 200 mA filament curr.: 7.5 A 14.5 V Saturation curr.:
400 mA filament curr.: 8.0 A 16.2 V. Saturation curr.: 1000 mA filament curr.: 8.5 A
18.0 V for short time"
Permanent Location
Storage Room 0010
0010-F4-9
Dimension Notes
Length: 44.0 cm. x Width: 9.3 cm.
Condition Remarks
Tube was dirty and dusty
Copy Type
Original
Reference Types
Person
Book
JPG
Reference Comments
Nancy Chisholm; Bernie Ziomkiewicz; "The Trail of the Invisible Light" by E.R.N. Grigg, MD; CD #4
Research Facts
Identified as having a therapeutic function
Images
Less detail

29 records – page 1 of 3.