Bed Rock Type Study

The chart below is a summary Type Study of Stanley Bed Rock Planes based on Bob Kaune’s thorough 1996 study and additional research I have conducted over the past several years.   Please note that all type studies are approximate as production variations throughout the manufacturing years were quite common.   Also keep in mind that Type Studies are present day references, time-lines that map changes in the design and features of tools manufactured in the past.  Understand that neither Stanley nor any other manufacturer followed type studies.  They didn’t exist at the time.  In fact, it is only in the last 30 years or so that type studies have been assembled through historical research and the physical inspection of hundreds or thousands of tools made over the years.

Bed Rock Distinguishing Features By Type

Dates

Low Knob – Rounded Sides

Type 1 Beds marked with Bailey model numbers (Nos.2 to 8.)
Space below “PAT’D APR. 2. 95” was milled out at the factory
S casting mark on bed (a single raised dot on some specimens)
Frogs & Lever Caps have “B” casting marks
Lateral lever has two patent dates “10-21-84 & 7-24-88”
STANLEY R & L CO…BED ROCK on lever caps, Q trademark stamp on most irons

1898

Type 2 7-24-88 is the only patent date on the lateral adjustment lever

1898-1899

Type 2a Model No.603 and 604 beds (only these two) were marked “No.60x”

1899

Type 3 All beds now marked with “600” numbers, i.e.; No.602 – 608
No milled space below “PAT’D. APR. 2. 95.” on bed, B casting marks
Frogs of some planes are nickel-plated on the machined surfaces

1900-1908

Type 4 B casting marks eliminated. No patent dates on the lateral adjustment lever
Lever caps now marked “STANLEY….BED ROCK”
Some irons have “S” trademark stamp, later planes have “T” trademark stamp

1908-1910

High Knob – Flat Sides

Type 5 Beds now marked “BED ROCK” in addition to “600” model numbers
2 patent dates behind frog, “PAT’D. APR. 2. 95″ & APR. 19. 10”
Flat-top sides introduced for first time
Raised knob receiver (flat version), Tall knobs introduced, “T” tm on irons
Frogs are now attached to beds with adjustment pins and set screws

1911

Type 6 Lever caps now marked “BED ROCK”
Irons stamped with “V” trademark or “X” trademark stamps

1912-1921

Type 6a 1-1/4″ diameter frog adjustment wheel
Iron stamped with “Y” Trademark (1922-1923)

1922

Type 7 One patent date behind the frog – “U.S. PAT. APR. 19. 10.”
Lever caps marked “STANLEY” only in the notched rectangular logo
Irons stamped with “AA” Trademark (1923-1935)

1923-1926

Type 8 Bed now stamped “MADE IN USA” in addition to the one patent date
Knob receiver boss now cupped for fitting knob

1927-1930

Type 9 Beds no longer have a patent date; stamped “MADE IN U.S.A.” only
Some lever caps nickel-plated with orange paint behind STANLEY logo

1931-1932

Type 10 Beds of No.603, 604 & 605-1/4 planes have raised handle receivers
Some frogs have orange paint on sides like Bailey planes
Lever caps now have kidney-shaped bolt holes
Irons stamped with BB tm starting in 1936

1933-1941

Type 11 Castings are heavier and thicker during war production years
Finishes left rough; lever caps not plated or polished

1942

Type 12 Frog adjustment nut either hard rubber or small diameter steel
Knob and handle are hardwood (maple) with dark varnish stain
All brass parts eliminated during war-time production
END OF PRODUCTION FOR BED ROCK PLANES

1943

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4 Responses to Bed Rock Type Study

  1. Gordon M Malcolm says:

    Excellent study and a great help. Gordon Malcolm Scotland

    Like

  2. Chris K says:

    First off, thanks for all of this information! I bought what was purported to be a Bedrock 606 with rounded sides. No “Bedrock” castings on the body, does have the three lined lever cap and there is a “B” stamped in the bed under the tote. Does this sound legitimate to you? Thanks!

    Like

    • Bryant says:

      Could be, but hard to tell from the information you provided. The early Bed Rocks from 1898 to 1899 were not marked Bed Rock. They were marked with the Bailey numbers. The lateral lever should have either one or two dates – 10-21-84 and/or 7-24-88. The space below the Apr 2, 95 patent date behind the frog should be milled out (like it was a mistake). And finally, the frog should have the rear adjustment screw like you see on the later Bailey Planes. Check your lateral lever for patent dates and take a look at what is marked behind the frog.

      Like

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