- 1613 (x)
- 1709 (x)
- 1934 (x)
- Photograph Collection (x)
- Search Results
-
-
Title
-
The Cassegrain Coude Focus
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective cutaway drawing of observing station built into outrigger trunnion attached to fork mount. Pencil on paper, 12 x 8 inches, mounted on board, 13 x 9 inches. Signed R.W.P. and dated 1934. Palomar. Porter Papers.
-
-
Title
-
The Aluminizing Chamber
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective drawing of aluminizing chamber with 200-inch mirror. Pencil on paper, 12 x 8 inches, mounted on board, 13 x 9 inches. Signed R.W.P., dated 1934. Palomar. Porter Papers.
-
-
Title
-
At the Prime Focus
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective cutaway drawing of observer in capsule. Pencil on paper, 8 x 12 inches, mounted on board, 9 x 13 inches. Signed R.W.P. and dated 1934. Palomar. Porter Papers.
-
-
Title
-
At the Cassegrain Focus
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective drawing with observer on elevator, aluminizing chamber below. Pencil on paper, 8 x 12 inches, mounted on board, 9 x 13 inches. Signed R.W.P., dated 1934. Palomar. Porter Papers.
-
-
Title
-
Cassegrain focus
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective drawing with observer on swivel swing behind mirror. Pencil on paper, 8 x 12 inches, mounted on board, 9 x 13 inches. Signed R.W.P. and dated 1934. Palomar. Porter Papers.
-
-
Title
-
The Cassegrain Coude focus. Alternative.
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective cutaway drawing of observing station built into trunnion. Pencil on paper, 12 x 9 inches, mounted on board, 13 x 9 inches. Signed R.W.P. and dated 1934. Palomar. Porter Papers.
-
-
Title
-
Looking South
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Detailed perspective drawing of fork mount with attached cylindrical outrigger trunnions, wishbone staairs around RA axis, and enclosed observer’s cage. Only the cell holder and upper tube ring are actually as built; central tube section is composed of X braces. Pencil on paper, 8 x 12 inches, mounted on board, 9 x 13 inches. Signed R.W.P., dated 1934. Palomar. Porter Papers.
-
-
Title
-
Front half of telescope on fork mount
-
Format
-
photograph: negative
-
Date
-
1934
-
Description
-
Perspective cutaway drawing of front half of telescope on fork mount with outrigger trunnion tubes. Pencil on paper, mounted on board, 12 x 16 inches. Signed R.W.P., dated 1934. Palomar. Porter Papers.
