Repeating Alarm Clock

Summary: 

A cam with bent up "tripping points" is mounted on the third wheel, moves a trip spring up and down, blocking and releasing the alarm hammer. This patent was used in the Alternating Alarm.

Patent Dates


Application Date: 

1906-05-21   

Issue Date: 

1907-06-04

Patent Numbers


Patent Number: 

855775   

Serial Number: 

318059

Description: 

A cam with bent up "tripping points" is mounted on the third wheel. These projections engage with a spring mounted on the front plate. One end of the spring is mounted to the front plate with a screw through a pillar. The other end of the spring has a projection which moves into and out of the path of a tail on a hammer.

Inventor Information: 

William S. Hawthorne, of Peru, Illinois, Assignor To The Western Clock Manufacturing Company, Of La Salle, Illinois, A corporation of Illinois.

Patent Type: 

Utility

Patent Country: 

United States

Patent Category:

Alarm Mechanism

Patent Companies


Assignee: 

Western Clock Manufacturing Company   

User: 

Westclox

Patent Personnel


Inventor: 

Hawthorne, William   

Witness: 

Mauritzen, Charles   

Witness: 

Johnson, Andrew   

Witness: 

Birkenbeuel, Edward   

Attorney: 

Neureuther, Andrew

Patent URLs:

U.S. Patent Database; Google Patents