Best I can do based on the photos provided:
1-2 - Fresnel lens - Probable a spotlight
3 - Carbon arc lamp (left), Simplex magazine (center), unknown other parts (bottom)
4 - Simplex magazine (probable 2K reels), large capacity magazine (probably 1950s 3-D era, probably IPC), what looks like a Simplex 3-point base in the shadows
5 - Fresnel lens
6 - Stand of some kind, probably not cinema tech
7 - Carbon arc lamphouse
8 - Strong high intensity lamphouse (obviously)
9 - No idea
10 - Carbon arc lamphouse in foreground, different carbon arc lamphouse in background, film magazine on right.
11 - Close-up of branding on Simplex high intensity lamphouse
12 - Power's Cameragraph No. 6B base with lamp bracket elevated to accommodate a soundhead, with separated legs stacked on top (left); Simplex 3-point based (center); Simplex 3-point base (right)
13 - Hollywood Film Company film rewinds. They look like the style with a long shaft meant for multi-gang 16mm editing. May work for 35mm, if they have 5/16" keyed shafts.
14 - Looks like the badge on a Simplex SH-1000 or X-L soundhead. A wider shot would confirm.
15 - Record player, in this context probably once used for walk-in music.
Post 2
16 - Spotlight or work light [?] and a 1K film can (likely asbestos lined). The film can is quite old, maybe teens or 20s.
17 - No idea
18 - Projector base (partial)
19 - Simplex soundhead - SH-1000 or similar, missing the motor and motor mount bracket
20 - Carbon arc lamphouse
21 - Early optical soundhead - Probably goes with the Power's, possibly the rarest item of the bunch. There were a ton of copycat companies who all failed within a couple years of the proliferation of optical sound. This one is missing the cover for the exciter lamp, possibly other parts. Still cool.
22 - Super Simplex projector head
23-24 - Western Electric amplifier
Post 3
25-26 - Late model standard Simplex projector head
27 - Same, with blue aftermarket paint job
28 - Pott's platter manual
29 - Changeover foot pedal
30 - Rewinds of unknown make (pretty old), feed magazine bracket and clutch with magazine enclosure removed
31 - Snood and slide carriage, probably from the Power's (reminds me of a 6A, but certainly no later than the 1920s) / Simplex magazine
32 - Not sure - with the coils, possibly part of an AC power supply for an incandescent lamp?
33 - Incandescent lamphouse for an early projector. No later than 1920s. Might go with the Power's.
34 - Projector pedestal tilt adjustment. Might go with the base missing a top (Photo #18).
35-36-37 - Ballantyne Pro 35 projector head
37 - Eprad lamphouse - Small enough that it might be of interest to collectors for home theaters if it runs on 120V
38-39 - Century R3 optical soundhead
40 - Kelmar takeup reel arm
41 - Alpha platter system (obviously)
42 - Eprad lamp, jumbled pile including projector base tilt adjustment and Kelmar reel arms, other parts / Alpha platter system platter tree
43 - Simplex X-L projector head
44 - Century optical soundhead (R3?) missing the motor and motor mount bracket
Post 4
45 - Motors - Flat belt motors, possibly for the Power's
1-2 - Fresnel lens - Probable a spotlight
3 - Carbon arc lamp (left), Simplex magazine (center), unknown other parts (bottom)
4 - Simplex magazine (probable 2K reels), large capacity magazine (probably 1950s 3-D era, probably IPC), what looks like a Simplex 3-point base in the shadows
5 - Fresnel lens
6 - Stand of some kind, probably not cinema tech
7 - Carbon arc lamphouse
8 - Strong high intensity lamphouse (obviously)
9 - No idea
10 - Carbon arc lamphouse in foreground, different carbon arc lamphouse in background, film magazine on right.
11 - Close-up of branding on Simplex high intensity lamphouse
12 - Power's Cameragraph No. 6B base with lamp bracket elevated to accommodate a soundhead, with separated legs stacked on top (left); Simplex 3-point based (center); Simplex 3-point base (right)
13 - Hollywood Film Company film rewinds. They look like the style with a long shaft meant for multi-gang 16mm editing. May work for 35mm, if they have 5/16" keyed shafts.
14 - Looks like the badge on a Simplex SH-1000 or X-L soundhead. A wider shot would confirm.
15 - Record player, in this context probably once used for walk-in music.
Post 2
16 - Spotlight or work light [?] and a 1K film can (likely asbestos lined). The film can is quite old, maybe teens or 20s.
17 - No idea
18 - Projector base (partial)
19 - Simplex soundhead - SH-1000 or similar, missing the motor and motor mount bracket
20 - Carbon arc lamphouse
21 - Early optical soundhead - Probably goes with the Power's, possibly the rarest item of the bunch. There were a ton of copycat companies who all failed within a couple years of the proliferation of optical sound. This one is missing the cover for the exciter lamp, possibly other parts. Still cool.
22 - Super Simplex projector head
23-24 - Western Electric amplifier
Post 3
25-26 - Late model standard Simplex projector head
27 - Same, with blue aftermarket paint job
28 - Pott's platter manual
29 - Changeover foot pedal
30 - Rewinds of unknown make (pretty old), feed magazine bracket and clutch with magazine enclosure removed
31 - Snood and slide carriage, probably from the Power's (reminds me of a 6A, but certainly no later than the 1920s) / Simplex magazine
32 - Not sure - with the coils, possibly part of an AC power supply for an incandescent lamp?
33 - Incandescent lamphouse for an early projector. No later than 1920s. Might go with the Power's.
34 - Projector pedestal tilt adjustment. Might go with the base missing a top (Photo #18).
35-36-37 - Ballantyne Pro 35 projector head
37 - Eprad lamphouse - Small enough that it might be of interest to collectors for home theaters if it runs on 120V
38-39 - Century R3 optical soundhead
40 - Kelmar takeup reel arm
41 - Alpha platter system (obviously)
42 - Eprad lamp, jumbled pile including projector base tilt adjustment and Kelmar reel arms, other parts / Alpha platter system platter tree
43 - Simplex X-L projector head
44 - Century optical soundhead (R3?) missing the motor and motor mount bracket
Post 4
45 - Motors - Flat belt motors, possibly for the Power's
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