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8 records – page 1 of 1.

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
Less detail
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.
Images
Less detail
Dates
1925
1930
circa 1925-1930
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.491.1 a-b
Description
X-Ray tube (a); at one end is a series of radiator fins at right angles to the tube and spaced at regular intervals around the tube; above the fins is a cylindrical section of hard plastic, followed by a chrome-plated (?) section; in the middle of this section is a raised piece of metal whose outer…
  1 image  
Accession Number
1969.491.1 a-b
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
X-Ray tube (a); at one end is a series of radiator fins at right angles to the tube and spaced at regular intervals around the tube; above the fins is a cylindrical section of hard plastic, followed by a chrome-plated (?) section; in the middle of this section is a raised piece of metal whose outer circumference is threaded; this piece has openings at both ends, and at the base is a thickish glass window; on the opposite side of the centre piece is a metal plate with maker's information; beyond the centre piece is another plastic section that meets with a metal cap at the end; in the middle of the flat-topped cap is a fuse-like object that extends outward (lengthwise) from the middle; tube sits on a wooden mount (b).
Number Of Parts
2
Part Names
a - tube - Size: Length 47.0 cm x Diam. 8.3 cm
b - mount - Size: Length 33.3 cm x Width 15.1 cm x Depth 17.5 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Muller-Media-Metalix
Site Made (Country)
Germany
Dates
1925
1930
circa 1925-1930
Date Remarks
From AM card.
Material
metal: silver
plastic: dark red
glass: clear
wood
Inscriptions
On plaque on tube: "MULLER-MEDIA-METALIX // NR. 340525 6kW // Made in Germany"
Permanent Location
Storage Room 0010
0010-F4-9
Copy Type
Original
Reference Types
Photo
JPG
Reference Comments
CD #UHN
Research Facts
Latest development of Phillips' line focus tube; note extra-heavy radiator on anode for heat dissipation.
Images
Less detail
Dates
1930
1935
circa 1930-1935
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.492.1 a-b
Description
X-ray tube (a) resting on sponge material on a wooden mount (b); metal cylinder has an opening for glass lens; radiator fins at one end, small threaded neck at other end; base is like an upside-down bench, with semicircular cutouts for the tube; metal sleeve at centre of tube has a plate with manuf…
  1 image  
Accession Number
1969.492.1 a-b
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
X-ray tube (a) resting on sponge material on a wooden mount (b); metal cylinder has an opening for glass lens; radiator fins at one end, small threaded neck at other end; base is like an upside-down bench, with semicircular cutouts for the tube; metal sleeve at centre of tube has a plate with manufacturer's information.
Number Of Parts
2
Part Names
a - X-ray tube - Size: Length 54.5 cm x Diam. 8.5 cm
b - mount - Size: Length 38.0 cm x Width 15.0 cm x Depth 18.0 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Muller-Meida-Metalix, System Philips
Site Made (Country)
Germany
Dates
1930
1935
circa 1930-1935
Material
metal: black; silver
wood: black
glass: clear
sponge
Inscriptions
On plate at centre of tube: "MULLER-MEDIA-METALIX // SYSTEM PHILIPS // NR. 285906 2.5 KW // HELIUM"
Permanent Location
Storage Room 0010
0010-F4-8
Condition Remarks
Sponge rest on (b) beginning to harden; top for wooden mount to hold (a) in place is missing.
Copy Type
Original
Reference Types
Photo
JPG
Reference Comments
CD #UHN
Research Facts
Radiator fins allow fast cooling of the anode, without which the tungsten target material would melt; anode temperature frequently reached 1000° C.
Images
Less detail
Dates
1925
1930
circa 1925-1930
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.493.1 a-d
Description
Glass X-ray tube, through which metal tube is visible, and also a second glass tube with wire; halfway down the tube is the lens set in a metal sleeve; metal ends, one of which is threaded; no radiator fins; tube rests in semicircular cutouts on a wooden base, with wooden hal-circles that fasten ov…
  1 image  
Accession Number
1969.493.1 a-d
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 X-ray tube, through which metal tube is visible, and also a second glass tube with wire; halfway down the tube is the lens set in a metal sleeve; metal ends, one of which is threaded; no radiator fins; tube rests in semicircular cutouts on a wooden base, with wooden hal-circles that fasten over top of the tube to attach it more firmly to the base.
Number Of Parts
4
Part Names
a - X-ray tube - Size: Length 56.0 cm x Diam. 6.3 cm
b - mount - Size: Length 38.0 cm x Width 15.0 cm x Depth 18.0 cm
c - wooden half circle - Size: Length 10.0 cm x Depth 4.0 cm
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Philips Metalix
Site Made (Country)
Germany
Dates
1925
1930
circa 1925-1930
Material
glass: clear
metal: silver
wood: dark brown
Permanent Location
Storage Room 0010
0010-F4-8
Copy Type
Original
Reference Types
Photo
JPG
Reference Comments
CD #UHN
Research Facts
Anode face was at an angle of 20° (early tubes were at 45°); this allowed a heavy load to be used, but focal spot sixe did not have to be increased, as geometrically focal spot size appeared small, due to the angle of the anode face.
Images
Less detail
Dates
1930
circa 1930
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.495.1
Description
At one end of the tube is a series of metal discs, mounted on a tubular metal pipe that extends into the main tube; the tube is capped at both ends with metal; at the end opposite the discs is a fuse embedded in the end of the tube; Note: item is missing.
  1 image  
Accession Number
1969.495.1
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
At one end of the tube is a series of metal discs, mounted on a tubular metal pipe that extends into the main tube; the tube is capped at both ends with metal; at the end opposite the discs is a fuse embedded in the end of the tube; Note: item is missing.
Number Of Parts
1
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
Mueller-Media Metalix
Site Made (Country)
Germany
Dates
1930
circa 1930
Date Remarks
Date is uncertain
Material
metal: silver
plastic (?): purple
glass: clear
Inscriptions
On a metal plate on the tube: "MUELLER-MEDIA-METALIX // NR. 315370 He 2.5 KW // made in Germany"; metal cap at bottom has, on a plate in big letters: "METALIX"
Permanent Location
Storage Room 0010
0010-F3-8
Temporary Location
Item is missing.
Dimension Notes
Length 62.2 cm x Diam. 6.0 cm
Copy Type
Original
Reference Types
Photo
JPG
Reference Comments
CD #UHN
Images
Less detail
Dates
1920
circa 1920
Collection
University Health Network - Academy of Medicine Collection
Category
Diagnostic & Treatment Artifacts
Classification
Diagnostic Radiology
Accession Number
1969.500.1 a-d
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 an angle; the tube rests on a wooden mount (b) that has two half-circular wooden arches (c,d) that go over the …
  3 images  
Accession Number
1969.500.1 a-d
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 an angle; 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.
Number Of Parts
4
Part Names
a - tube - Size: Length 56.0 cm x Diam. 17.8 cm
b - mount - Size: Length 18.0 cm x Width 15.0 cm x Depth 18.0 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
Provenance
Acquired from the Academy of Medicine; source unknown.
Maker
MacAlaster Wiggin Co.
Site Made (City)
Boston
Site Made (State)
Massachusetts
Site Made (Country)
United States of America
Dates
1920
circa 1920
Date Remarks
Patent dates given on item: 1915, 1917
Material
glass: clear; translucent violet
metal: silver
wood: brown
Inscriptions
Around a circle: "MACALASTER WIGGIN CO."; under this: "Patented 15, 1915 // Nov. 20, 1917 // Pat. No. 1 [illeg.] 090-16"; inside a curved box: "VICTOR" then, "MADE IN BOSTON // TUNGSTEN // 6074"
Permanent Location
Storage Room 0010
0010-F3-8
Condition Remarks
Tube rests starting to disintegrate; #2: glass bubble has no cracks; smaller glass bubbles have air holes in them; several scratches in glass at one end; metal within glass shows signs of use; minor scratching and some minor discolouration; wood shows some signs of use; scratches and some stains.
Copy Type
Original
Reference Types
Photo
Exhibit History
On exhibit "When Medicine Met Science," Museum of Health Care, April 29, 2003 - 25 Jan 2017
Agnes Etherington Art Centre - July 2002
Images
Less detail

8 records – page 1 of 1.