https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85822&pn=1,477,261 Hot-water bottle and the like Patentee: Frederick A. Hart - New Britain CT Granted:1923-12-11
Manufactured by Landers, Frary & Clark - New Britain CT
Assigned to Landers, Frary & Clark - New Britain CT

The patent deals with "self-venting" provisions for metal hot water bottles to deal with the tendency of partially filled metal hot water bottles to collapse as the contents cool. Marketed as the UNIVERSAL Hot Water Bottle. The shape of these containers leads to mis-identification as military canteens.
This is one of 85,112 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85820&pn=3,096,877 Packages and methods of packaging Patentee: Norman E. Skarsten - Oakland CA Granted:1963-07-09
Manufactured by Thorsen Manufacturing Co. - Oakland CA
Assigned to Thorsen Manufacturing Co. - Oakland CA

"My invention relates to packages and methods of packaging in general and especially to the packaging of merchandise for display purposes, as well as for convenience in handling and shipping." The patent sets out the use of "clear skin" wrapping, and the use of an internal divider strip, for purposes of security in shipping and public display. The patent has been associated with socket / ratchet sets produced by Thorsen, in which the divider strip is a contrasting color to the backing and case.
This is one of 85,112 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85819&pn=2,016,483 Housing and brake for steel rules Patentee: Frederick O. Carlson - New Yorkny Granted:1935-10-08
Manufactured by Master Rule Mfg. Co. - New York NY
Assigned to Master Rule Mfg. Co. - New York NY

Case design and friction "lock" for steel tape measure. Appears in ca. 1940 ads as Master Rule Co. "Streamline" with "lever lock."
This is one of 85,112 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85817&pn=2,076,704 Steel rule Patentee: Frederick O. Carlson - New York NY Granted:1937-04-13
Manufactured by Master Rule Mfg. Co. - New York NY
Assigned to Master Rule Mfg. Co. - New York NY

Tape and case design to facilitate inside measurement, etc. Case dimension + hook thickness are factored into the markings to provide accurate readings. [In the illustration, the case + "hook" = 2 inches] The design was marketed by Master Rule Mfg. as "TUFBOY" in 1940. The patent number appears on relevant examples.
This is one of 85,112 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=41809&pn=883,642 Spirit Level Patentee: Albert W. Hight - Ballard, King County WA Granted:1908-03-31
Assigned to Hugh G. Monen - Toledo, Lucas County OH

Robert B. Wilson - patent attorney Abstract: My invention relates to a spirit level, and has for its object to provide a convenient instrument of the kind, that is of simple and inexpensive construction and wherein the bubble glass is readily adjustable to accurately locate the plane of the bubble between indicating lines of the glass and parallel with planes of the body of the instrument, whereby whenever the plane of the bubble is located between the indicating lines, the planes of the body that are parallel therewith are also horizontal. A further object is to provide an instrument of the kind having one or more bubble tubes that may be readily and accurately adjusted therein to adapt the instrument for convenient and accurate use for either leveling or plumbing or both combined. Claim: In a level, the combination with a body having a plane base, and a counterbored transverse orifice parallel to the plane base, of a ring rotatably mounted in the orifice, arched bubble sight tube secured diametrically of the ring, annular plates in the counterbores, and clamping screws extending through the annular plates and the hoc adapted to press the plates oppositely on t body and the ring.
This is one of 85,112 patents currently in the database at datamp.org

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