https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=60973&pn=2,572,652 Multiple Expansion Steam Engine Patentee: Herman G. Mueller - Erie, Erie County PA Granted:1951-10-23
Assigned to Skinner Engine Co. - Erie, Erie County PA

This engine was also patented in Canada, patent #CA-481113. Abstract: This invention relates generally to multicylinder vertical compound steam engines using a "Woolf steam cycle," and it relates more particularly to steeple-compound, uniflow, poppet- valve, reversing stationary and marine steam engines, on which much higher steam temperatures can be used with resulting lower steam consumption. Claim: In a multicylinder steam engine, in combination, a high-pressure cylinder and a low-pressure cylinder having admission and exhaust ports, valves for controlling the steam events in said cylinders, and an open auxiliary steam line between said high-pressure cylinder and said low-pressure cylinder.
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]]> https://www.datamp.org/patents/displayPatent.php?id=61035&pn=481,113 Steam Engine and Valve Mechanism Patentee: Herman G. Mueller - Erie, Erie County PA Granted:1952-02-12
Assigned to Skinner Engine Co. - Erie, Erie County PA

This engine was also patented in the U. S., patent #2,572,652. Abstract: This invention relates generally to multi-cylinder vertical compound steam engines using a "Woolf steam cycle", and it relates more particularly to steeple-compound, uniflow, poppet-valve, reversing stationary and marine steam engines, on which much higher steam temperatures can fee used with resulting lower steam consumption. Claim: In a multi-cylinder steam engine, in combination, a high pressure cylinder and a low pressure cylinder having admission and exhaust ports, valves for controlling the steam events in said cylinders, and an open auxiliary steam line between said high pressure cylinder and said low pressure cylinder.
This is one of 84,657 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=85357&pn=373,304 Snow Removing Apparatus Patentee: Arthur Sicard - Montréal QC, Canada Granted:1938-04-19
Manufactured by Sicard Industries - Sainte-Thérèse QC, Canada

Abstract: This invention relates to improvements in that type of snow removing apparatus in which a blower serves to blow the snow to either side of the roadway, or into a snow loading vehicle. Such apparatus, when used for road clearing purposes, is generally mounted at the front end of a motor driven truck and comprises a blower into which the snow is fed by suitable conveying means during forward travel of the truck. In some instances the blower is provided with a stationary casing having an outlet communicating with either a stationary or rotatably mounted delivery spout through which the snow is delivered to a suitable point of discharge. In other instances the delivery spout is omitted and the blower casing rotatably mounted so that the peripheral outlet through which the snow is blown by the fan or impeller may be selectively directed toward either side of the roadway. In still other instances two spouts, arranged to direct the snow toward opposite sides of the roadway, are used in combination with a stationary blower casing and a valve which is operated to direct the snow from the blower into either of said spouts. Claim: In mobile snow removing apparatus of the character described, the combination of a blower including a rotatably mounted vertical blower casing provided with a front inlet and a peripheral outlet, a delivery spout mounted above the blower to receive snow from the outlet of the blower casing when said outlet is positioned directly beneath said spout, and means for rotating the blower casing relatively to said spout to position said outlet beneath the spout or to direct said outlet toward either side of the roadway along which the apparatus is travelling.
This is one of 84,657 patents currently in the database at datamp.org

]]> https://www.datamp.org/patents/displayPatent.php?id=16062&pn=RE11,868 Pliers Patentee: William Alexander Bernard - New Haven CT Granted:1900-11-06
Manufactured by William Schollhorn Co. - New Haven CT
Assigned to William Schollhorn Co. - New Haven CT

The patent is for a pliers formed from a pair of steel stampings. It includes a return spring inside the handles. The specifications note parallel foreign patents. Wm. Schollhorn Co. produced a lower priced LODI pliers and a higher priced PARAGON pliers based on the original patent and this reissue. The patent dates appear on Bernard PARAGON Reservoir Ticket Punches, and other PARAGON pliers. Some known examples include wire cutters, viz. 526,480.
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]]> https://www.datamp.org/patents/displayPatent.php?id=85356&pn=879,532 Space Telegraphy Patentee: Lee De Forest - New York NY Granted:1908-02-18
Manufactured by De Forest Radio Telephone Co - New York NY
Assigned to De Forest Radio Telephone Co. - New York NY

This was the first patent for a Electronic Vacuum Tube. Abstract: My invention will be described with reference to the drawings which accompany and form a part of the present specification, although it is to be understood that many modifications may be made in the apparatus and systems herein described without departing from the principles of my invention. Claim: An oscillation detector comprising an evacuated vessel, an electrode enclosed there-in, means for heating said electrode, a second electrode enclosed within said vessel, a local circuit having its terminals electrically connected to said electrodes, a conducting member enclosed within. said vessel and located between said electrodes, and means for conveying the oscillations to be detected to the first mentioned electrode and said conducting member.
This is one of 84,657 patents currently in the database at datamp.org

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