Specification of Siegmund Rieffler - Improvements in Balance Wheel Escapements for Watches and Clocks - No. 6809
|Catalogue no: 1074
|Author(s): Siegmund Rieffler
|Total pages: 3
||Publication date: 1889
||Publisher: The Patent Office
|Dimensions: 290mm x 200mm
||Condition: Paper cover fragile, frayed and torn
||Related library records:
Four innovations are described in the text as follows;
1. The method of transmitting power from the wheel trainto the balance by means of or through a recoil spring.
2. The combination of the balance, recoil spring and pivoted wheel.
3. The combination of a double escape wheel having both detent and impulse teeth and a pivited anchor for the pallets.
4. The combination of recoil spring of anchor with crank wrist or equivalent
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