Push Key Padlocks (Pancake)

• Most of the photography in this category was done by Neil Pylant. Neil is a collector, historian, and Publisher of antique padlocks. Many thanks to Neil for his hard work and generosity in making this category more complete.
• You will want to read The History of Six Lever Push Key Padlocks.
• The presence or absence of a clevis will not be considered to be a major variety.
• When the reverse of a case is not shown in a picture it is assumed to be blank unless otherwise noted.
• The pancake list reference will be noted in the text as (4-9.5).
• Miller Lock Co. push key patents: US Patent #105710. US Patent #143831. US Patent #143990. US Patent #158111. US Patent #340319. US Patent #695347.
• Bristow Hunt UK 1873 Patent #2793. It appears that the Hunt patent was a collaboration with DK Millers's US Patent #143990.
• Slaymaker-Barry push key patents: US Patent #536844.
• Eagle Lock Co. push key patents: US Patent #235750.
• Samuel P. Stein push key patents: US Patent #440069. US Patent #457678.
• Pancake Push Key Examples

List Selection
3-Lever Brass
4-Lever Brass  4-Lever Iron
5-Lever Brass  5-Lever Iron
 6-Lever Alloy
6-Lever Brass  6-Lever Iron
6-Lever Brass Square
7-Lever Brass
8-Lever Brass
Torpedo
Patent Models
Research
Counter Stamped Padlocks
Non Push Key Pancakes