Teens "Sure-Lock" Model M hub arm lock

[oddball]

Not definite what is stamped on face, Model M
"*** Sure-Lock"
F? & H Mfg. Co.
WESTFIELD MASS. ?
Came off an early Morrow hub from the teens, anyone have info on this item?
Cliff

 

[catfish]

Here is a NOS one.

 

[oddball]

Thanks Ed for clearing that up for me, literally.
This 1917 Columbia equipped with the 4 Sure-Lock.

 

[locomotion]

Here is a NOS one.

View attachment 1338872

again another cool piece Ed
can you please post a side views?
interested in knowing how this lock works

I wonder what the difference is between the model M and model C

 

[Mercian]

Hi All,

I think this is the patent:

Best Regards,

Adrian

 

[dnc1]

A great idea, but if only those pesky thieves weren't strong enough to pick up the locked bicycle and shoulder it away!