Wurlitzer Direct Drive Gear Survey

Wurlitzer Direct Drive Gear Study Project

Introductory Style Notes:

An Invitation to Send Accompanying Photographs

Pictures of the exterior of an instrument often allows us to identify case styles, control knobs, coin slots, art glass details, and other characteristics oftentimes not easily described through text alone. Moreover, snapshots of the interior mechanisms and any nameplates they may bear usually helps us greatly to identify mechanical characteristics that shed light on the mechanical evolution of an instrument, which helps us when developing dating guides. It is no stretch to say that photographs are an invaluable aid in detailing and understanding any instrument for which information has been submitted, and so please do consider sending photographs, albeit separately from the on-line form, but nonetheless augmenting the survey information.

Invitation to e-mail photographs corresponding to a survey submittal.
Please send photographs to:

Wurlitzer Direct Drive Gear Survey Form

All survey submissions to the Mechanical Music Press are given with the provision that the Mechanical Music Press and/or its authors have non-exclusive use of the information, images, or other material submitted for use with this project or in any other part of this web site, and do so without limitation. All contributors of significant, previously unused information will be listed as contributors under general credits in the Registry section. Submission does not guarantee the acceptance of or the use of the whole or any part or segment of any information submitted. Please do not submit information if you cannot abide by the aforementioned stipulations.

Contact Information
  Show owner name in reports.

* Required form fields: Contact information will be kept private, with the exception of owner name if, and only if the "Show owner name on reports" box is checked.

Piano Basic Information (omit if worm gear unit has been orphaned)  Piano serial number:

88 Note Player Piano; Pianino; Mandolin Quartette; Mandolin Sextette; A, B, C, D, E, I, or L 65 Note Pianos/orchestrions, G Photoplayer, O Photoplayer, W Photoplayer, etc.

Direct Drive Worm Gear Standard

If an Early Open Worm Gear Standard (with exposed gear and brass oil cups)

Tall Open Gear Standard, plain with NO rewind trip linkages (8-3/4” high).
Tall Open Gear Standard, with REWIND TRIP linkages (58-3/4” high).
Short Open Gear Standard (6-3/4” high).
Short Open Gear Standard mounted on a tall wooden block (6-3/4” high without spacer block).

If a late Fully Enclosed Heavy/Worm Gear Standard (with enclosed gears)

Heavy Gear Standard (9-3/8” high); NO NAMEPLATE; with brass oil cups.
Heavy Gear Standard (9-3/8” high); Type: SA-200-HG-3; No oil cups; Gear: 81 teeth; Worm: 5 thread.
Heavy Gear Standard with incorrect nameplate (7-1/4” high), Type: SA-200-HG-1B; No oil cups; Gear: 51 teeth; Worm: 3 thread.
Worm Gear Standard (7-1/4” high), Type: SA-1B; No oil cups; Gear: 51 teeth; Worm: 3 thread.
Worm Gear Standard (7-1/4” high), Type: SA-BB; No oil cups; Gear: 51 teeth; Worm: 3 thread.

If none of the above descriptions exactly correspond to what is being reported please describe the component in the comments field at the bottom of this form.

5-inch O.D. split wood pulley.  Pinned stub shaft; no pulley.  No pulley; stub shaft never pinned.

The gear standard's crankshaft has a short stub shaft on the rear facing side. If a wooden pulley is to be attached a small hole is drilled through the stub shaft and a metal pin is inserted to protrude on both sides, and then a wooden pulley is clamped onto the stub shaft. The netal pin through the stub shaft keeps the wooden pulley from rotating on the shaft.

 (Enter None if no namplate.)
 Gear:  Worm:  RPM:

The gear standard 3 or 4 digit serial number, if any, is die-stamped onto the end cap for one of the high-speed worm shaft bearings.

Motor Information (only if original motor)  Motor Model:  Motor S/N:  Motor RPM:
Comments, History, and Explanations

Please include any additional information about the piano that might be pertinent, such as its history, i.e., various locations and owners. For the gear standard, please include its overall height, its footprint width and depth, and/or any unusual attributes or features. If you find a date (or style number), such as on a paper sticker inside or on the backside of the case, or on a pneumatic component, notice an early tuning date written by hand on the piano plate, find an original sales invoice, etc., please describe any such items.