Stanley Gage Plane History & Type Study

US339872-Gage-PatentJohn Porcius Gage formed the Gage Tool Co. in 1883, and operated it until 1917, making wood bottom transitional planes. J.P. Gage registered plane patents on 4 August 1885, 13 April 1886 and 8 November 1892. The 30 January 1883 patent of David A. Ridges was also used.

The Gage “self-setting” design eliminated the need for a lateral adjustment feature, which eliminated slop in the blade movement. The adjustment slide was designed to accurately fit into a groove in the frog, and depth adjustment was controlled by a screw at the rear of the frog, similar to a low angle block plane. The two-piece lever cap design also functioned as a chipbreaker. The outer part of the cap serves as the lever cap, with the inner piece functioning as a chipbreaker. The mechanism is adjustable via a two-screw slide to bring it closer to the edge of the blade. The self setting feature allowed the cutter and cap to be removed and reinstalled without adjustment of the cut.

In 1919 Stanley Rule & Level Co. bought the Vineland NJ company, mainly to get the patent for their excellent frog design and to compete with Sargent’s Auto-Set line of planes that are very similar in both appearance and design. Stanley retained the use of the Gage name, producing a line of transitional planes from 1919 to 1935, and metal Gage planes from 1919 to about 1941, when the line was phased out.

The original Stanley Gage line of metal bench planes was numbered 3 through 7, sizes that compared to their Bailey counterparts. The G prefix was added in 1930 to distinguish them from the Bailey line (G3 through G7C). There were 10 different numbers included in the offering, which included corrugated versions that, like Bailey planes, were differentiated with a C suffix appended to the model number (ex. G3C or G7C).

Gage Type Study

There are four “Types” of Stanley Gage planes, which are thankfully far less complicated than most of the other Stanley Type studies.

Type 1 (1919-1923) – Plane beds marked “Pat. Appl’d For” in the casting. No “G” prefix to the model number

Type 2 (1924-1930) – “Pat. Appl’d For” removed from the casting. Plane beds are now marked with Schade’s 2-17-20 patent date.

Type 3 (1930-1941) – The “G” prefix added to the model number.

Type 4 – Same as Type 3 but has “Made in USA” added to the casting. (exact date of this is uncertain)


Sellens, Alvin, The Stanley Plane,: A History & Descriptive Inventory, Augusta, KS: Allvin Sellens, 1978.

Walter, John, Stanley Tools: Guide to Identity & Value, Marietta, OH: John Walter, 1996.

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