https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=82957&pn=D180,004 Metal-Cutting Shears Patentee: Clarence M. Anderson - Chicago IL Granted:1957-04-09
Manufactured by MALCO Products, Inc. - Annandale MN

The design appears to aim for weight reduction by having open web handles. The patent number appears together with 2,801,467 on MALCO "ANDY" shears. Term of patent 14 years. A 1972 MALCO catalog listing shows these made of cast aluminum with replaceable shear blades. The physical appearance also copies Anderson's patent no. 2,801,468, where the drawings include details on how the handle shape facilitates gripping the shears. Patents D101,791, 2,343,527 and 2,661,534 cited as references.
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]]> https://www.datamp.org/patents/displayPatent.php?id=85361&pn=2,801,468 Metal-cutting shears Patentee: Clarence M. Anderson - Chicago IL Granted:1957-08-07
Assigned to Anderson Tool & Manufacturing Co. - Chicago IL

"I claim- (I). A metal-cutting shears comprising, a pair of pivoted levers each having a jaw-section and handle section longitudinally offset on opposite sides of the pivotal connection, the handle section terminating in a hand-grip loop, and an integral reinforcing rib extending along the back edge of handle section forwardly of the hand-grip loop and formed with a finger opening directly forward of the hand-grip loop. (2). A metal-cutting shears comprising, a pair of pivoted levers each having a jaw-section and handle section longitudinally offset on opposite sides of the pivotal connection, the handle section terminating in a hand-grip loop disposed transversely outward from the inner edge of the handle section, and an integral reinforcing rib extending along the back edge of the handle section forwardly from the hand-grip to a point adjacent the pivotal connection, the rib having an opening formed therein directly forward of the hand-grip loop. The specifications discuss casting the handle and body of these shears from aluminum, with replaceable steel cutting blades, and the role of the reinforcing ribs in protecting the operating hand from being injured by the cut metal edges while using the shears. The physical appearance of these shears received design patent no. D180,004. That design patent number together with Pat. no. 2,801,467 appear on MALCO shears -- leading to speculation that the "2,801,467" is a mis-print. "ANDY" aluminum shears made by Anderson Tool & Mfg. Co. (Chicago) are listed in a 1967 Hardware trade directory. Two sizes of cast aluminum "ANDY" shears with replaceable steel cutting blades in a 1972 MALCO catalog match the features of this patent and D180,004.
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]]> 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.
This is one of 84,658 patents currently in the database at datamp.org

]]> 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 84,658 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.
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