Browse Items (436 total)

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A picture of the construction of what would become the Director's house on Observatory Hill. The north pier of the telescope is visible in the background

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A picture of assembled telescope tube outside the Warner & Swasey factory ready for shipping to Victoria

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A picture of assembled telescope tube outside the Warner & Swasey factory ready for shipping to Victoria

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A picture of assembled telescope tube outside the Warner & Swasey factory.

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An excellent picture of the assembled telescope inside the Warner & Swasey factory

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A picture of the assembled telescope inside the Warner & Swasey factory with J.S. Plaskett standing beside it.

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An excellent picture of the assembled telescope inside the Warner & Swasey factory

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A picture of the telescope being assembled inside the Warner & Swasey factory

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A great picture looking down the tube of the telescope at the mirror cover. The cover was very important for protecting the mirror from the elements and from anything being accidently dropped onto it.

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A picture of one of the metal end caps that sit on the end of the cement pier.

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A picture of various equipment, gears, wheels in side the Warner & Swasey factory

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A picture of one of the metal end caps that sit on the end of the cement pier.

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A picture various parts inside one of the large parts of the telescope.

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A picture of the large right ascension gear with one of the enginneers.

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A picture of assembled telescope tube outside the Warner & Swasey factory. John Stanley Plaskett is in the right, in the middle is Ambrose Swasey. The man on the left is Edward Burrell and engineer of Warner & Swasey

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A picture of an engineer with some of the gears used in the telescope.

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A picture of the handling cart for the mirror of the telescope. The mirror was coated wit silver than had to be replaced every few months when it tarnished. The mirror was lowered into this cart so it could be easily moved.

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A picture of the completed polar axis on blocks outside the Warner & Swasey factory

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A picture of the polar axis on blocks outside the Warner & Swasey factory

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A picture of the partially disassembled polar axis on blocks outside the Warner & Swasey factory

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A picture of the polar axis of the telescope out side of the Warner & Swasey factory. The polar axis is accurately aligned to the axis of Earth's rotation so that the telescope can properl;y track stars.

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A picture of the original clock drive for the telescope. At the time the telescope built, the best way to move the telescope to accurately track the stars, was to drive the telescope by a mechanism that was powered by a falling weight. Very smooth!…

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A picture of the right ascension gear of the telescope. This gear drives the telescope around the axis of the telescope pointing north.

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A picture of the test assmbly of the dome structure at the Warner & Swasey factory in Cleveland, OH. Large structures were test assembled at the factory before being shipped

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A detailed picture of the dome assembly at the Warner & Swaseyfactory in Cleveland, OH. This shows the shutter opening and the drive wheel for opening and closing the shutter.

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A closeup of assembled dome structure at the Warner & Swasey factory in Cleveland, OH. Note howsome of the parts are numbered

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A picture of the test assmbly of the dome structure at the Warner & Swasey factory in Cleveland, OH. Large structures were test assembled at the factory before being shipped

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A picture of the assembled track structure on which the dome would sit

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A picture of sections of the tracks on which the rotating dome would sit. The track is the same used for railways.

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A picture of of the completed model in front of the assembled telescope in the Warner & Swasey factory. It was standard practice to test assemble large structures before they were shipped to be erected at the actual site

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A picture of the finished model of the telescope and dome. The telescope and dome could be moved. The telescope was moved by inserting a rod into the base of the telescope where it connected to the gears. This model was exhibited in the 1915…

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A picture of the finished model of the telescope and dome. The telescope and dome could be moved. The telescope was moved by inserting a rod into the base of the telescope where it connected to the gears. This model was exhibited in the 1915…

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A picture of the almost completed model of the telescope and dome. The telescope and dome could be moved. The telescope was moved by inserting a rod into the base of the telescope where it connected to the gears. This model was exhibited in the 1915…

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A picture of the lower half of the 1/10th scale model of the telescope and dome that was built by Warner & Swasey. This is an excellent image of their workshop showing a series of lathes powered by leather belts all connecting back to the power…

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A picture of a early wooden model of the telescope and part of the dome structure. This is likely sitting in the offices of the Warner & Swasey Co. who built the telescope.

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A picture of the figured mirror in Brashear's workshop. The calendar shows the month as November, 1915. We don't know if this is the month the image was taken.

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A picture of the more or less completed mirror in Brashear's workshop

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A picture of the more or less completed mirror in Brashear's workshop

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A picture of the partially figured mirror on the grinding stand. The surface is much smoother than that of the raw mirror blank

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A good picture of Brashear's workshop with apparatus and tools

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A picure of the mirror blank set up on the grinding table in Brashear's Pittsburgh workshop. Brashear appears ready for work, wearing his apron and a peaked cap.

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A picture of the mirror blank in John Brashear's workshop before work started on figuring and polishing it to the correct shape. The mirror blank was shipped from Belgium just a few days before the start of WW I. John A. Brashear is resting his arm…

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A picture of the mirror blank in John Brashear's workshop before work started on figuring and polishing it to the correct shape. The mirror blank was shipped from Belgium just a few days before the start of WW I.

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A picture of the mirror blank in John Brashear's workshop before work started on figuring and polishing it to the correct shape. The mirror blank was shipped from Belgium just a few days before the start of WW I.

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A distant view of the completed piers. A long long ladded is standing against the pier.

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A picture of the completed piers with three men that gives a sense of the scale. The concrete floor of the building is also completed in this picture.

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A picture of the completed piers. Visible is the large concrete pad on which the pier structure sits. This is hidden below the floor in the completed building.

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This picture provides a good view of the archway between the two pieres. This archway is a notable feature when one is inside the completed telescope and dome.

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In this picture the lower parts of both the north and south piers (combined in one piece) is completed and the forms for both piers appears to be completed.

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In this picture the lower parts of both the north and south piers (combined in one piece) is completed and the forms for both piers appears to be completed. The water tower is visible in the background
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