Photo Index - Stanley Works, Stanley Electric Tools - Model LM-1 lock mortiser

Machinery Photo Index

Manufactured/Badged by:
Stanley Works, Stanley Electric Tools
New Britain, CT

True Manufacturer:
Stanley Works, Stanley Electric Tools, New Britain, CT

Machine Specifications
Machine Class:	Wood Working Machinery
Machine Type:	Mortising Machine
Machine Size:
Submitted By:	Wally James

Machine Specifications
Description/Model:	Model LM-1 lock mortiser
Date of Manufacturer:
Serial Number:
Last Updated	9/30/2024 6:09:11 PM

Comments:

Submitting this as none are currently represented. This is a Stanley LM-1 lock mortising machine. The date of manufacture is unknown as the data plate is missing from the motor. From documentation found on this site the motor is 1hp. There were no instructions in this kit. This machine is covered by Patent 1,738,227, issued to Ray Carter in 1929. I believe these machines could have been built originally by the R.L. Carter company before the company was acquired by Stanley. Stanley continued to produce this machine until, I believe, the 1960's. This is not a small kit as it weighs about 60 lbs. The knob on the left appears to be a replacement.

The machine clamps onto the edge of the door and self centers as the clamps are tightened. A stop nut adjusts the length of the mortise. As the handle is moved back and forth it engages a screw and turns it, allowing the bit to drop deeper with each cycle of that handle until the desired depth is reached. Then, a lever is depressed that opens a half nut on the depth screw allowing the machine to be raised so the bit clears the mortise. Different diameter cutters could be used to match the lock being used. A long rod can be inserted into the base and has a stop block on one end that abuts the end of the door. This allows the machine to be used on multiple doors and have repeatability on the placement of the mortise in each door.

I would like to see somebody post a copy of the instructions to this website.
Updated to add I sold this at Arnfest 2024.

Photo 1:

Comments: Front view
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Photo 2:

Comments: detail of mortise bit, and release lever behind it
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Photo 3:

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Photo 4:

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