https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=85308&pn=768,495 Grip-Tread for Pneumatic Tires Patentee: Harry D. Weed - Canastota, Madison County NY United States Granted:1904-08-23
Manufactured by American Chain Co. - Bridgeport, Fairfield County CT

This was the first patent for tire chains. Abstract: This invention relates to improvements in io treads for pneumatic tires, and is particularly applicable for use on the traction-wheels of automobiles to prevent the tire from slipping on slippery pavements. The object of my present invention is to provide a flexible and collapsible grip or tread composed entirely of chains linked together and applied to the sides and periphery of the tire and held in place solely by the inflation of the tire, and which is reversible so that either side may be applied to the periphery of the tire, thus affording a double wearing-surface. These grips or auxiliary treads are adapted to be applied to the traction or driving wheels of automobiles, and one of the important objects is to enable any one skilled or unskilled to easily and quickly apply the auxiliary tread when needed by partially deflating the tire and then placing the grip there- on, and finally reinflating the tire to cause the transverse chains to partially embed themselves into the periphery of said tire, whereby the auxiliary tread or gripping device is firmly held in operative position against circumferential slipping on the tire. Another object of equal importance is to construct the auxiliary grip or tread in such manner that it may he collapsed into a minimum space when not in use to be carried in the vehicle, and owing to the fact that it is to constructed of chains with comparatively short links it will be apparent that it may be compressed into a very small space, and therefore can be placed under the seat or in any other available receptacle in the vehicle. Claim: A grip-tread for elastic tires comprising two parallel side chains having a plurality of hooks at one end to receive the links of the opposite end, and cross-chains linked to the side chains and having both faces alike whereby either face may be presented to the tire.
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]]> https://www.datamp.org/patents/displayPatent.php?id=78762&pn=659,944 Gas Engine Patentee: Harry D. Weed - Syracuse, Onondaga County NY Granted:1900-10-16

Abstract: The invention subject of my present application is an improvement in gas-engines, more particularly of the class known es two-cycle explosive-engines, and has for its main objects to simplify end improve the construction of such engines, to increase their efficiency, and to provide for better regulation of the same, especially with a view to rendering them more available in small sizes for use in the propulsion of vehicles und other analogous purposes. The specific features of the invention are largely matters of constructive detail; but e prominent feature to which I attribute much of the practical success of the engine consists in a means for regulating the force of the explosion in proportion to the amount of Work which the engine is called upon to perform and which, stated in general terms, is es follows: In conjunction with the working cylinder and a gas-chamber and a piston common to both, I employ means for introducing into the working cylinder from the gas-chamber a full charge of mixed gas and air at or near the end of forward movement of each stroke, which displaces the gaseous products of combustion within the cylinder and is then, prior to ignition, compressed by the return of the piston. Under conditions of full load, when the maximum expensive effect of each explosion is required, the whole charge of mixed air and gas is retained and exploded within the cylinder; but should the load be lessened, the maximum explosive effect would be in. excess of the requirements of the work to be done. To compensate for this, I provide means, preferably automatic, by which a portion of the unexploded charge corresponding in amount to the decrease in load is withdrawn from the working cylinder und returned through a suitable bypass to the opposite side of the same, so that the actual charge, which remains to be exploded is proportioned in amount to the work, which the engine is called on to perform. Claim: In a gas engine the combination with a working cylinder, a gas-chamber communicating with said cylinder and a piston common to both said cylinder and said chamber, of means for admitting to the working cylinder full charges of explosive gas from the gas-chamber and means whereby a portion of the admitted charge of gas proportionate to the amount of work the engine is called upon to perform is withdrawn from the working cylinder prior to ignition.
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]]> https://www.datamp.org/patents/displayPatent.php?id=49956&pn=365,701 Gas Motor Engine Patentee: Nicolaus August Otto - Deutz-on-the-Rhine Prussia, German Empire Granted:1887-06-28
Assigned to Gas-Motoren-Fabrik-Deutz - Deutz-on-the-Rhine Prussia, German Empire

Patented in England, 19 Jan 1887, #847; in Belgium, 03 Feb 1887, #76,214 and in Italy, 24 Feb 1887, #XLLI, 8. Abstract: This invention relates to an improved construction of apparatus for igniting the charges of those gas-motor engines in which the charge is subject to compression before ignition. The apparatus consists of a slide that is pressed against a slide-face of the cylinder by means of a loose cover acted on by springs, and is worked by suitable gearing from the engine-shaft. Claim: Igniting apparatus for gas-motor engines, consisting of a slide, n, having a channel, b, communicating by a small hole, c, with a chamber, that in its turn communicates by an annular opening, cl, with a passage, c, having opposite lateral openings a' e , the passage e being made to communicate with the firing-port of the engine by a passage.
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]]> https://www.datamp.org/patents/displayPatent.php?id=84678&pn=179,401,983 Inflammable vapour engine Patentee: Robert Street - London England Granted:1794-05-07

This is perhaps the first patent for an internal combustion engine that used a liquid hydrocarbon fuel, although it does not strongly resemble a modern internal combustion engine. The inventor was a maker of varnish and the fuel he used was "coal tar, spirit or turpentine rendered gaseous and then ignited by a flame burning outside the cylinder.". One website describes this invention as "a single vertical cylinder surrounded by a coal-fired preheating furnace at the lower end and a water cooling jacket at the upper end. Vertical motion of the piston was transmitted via a connecting rod and pivoted rocking beam for driving de-watering pumps in the coal mines. Prior to each power stroke a small quantity of liquid spirits was poured into a fuel hopper connected by a supply tube to the lower end of the cylinder. A hand-operated air pump was then used to charge the cylinder with air, causing the piston to rise about 25% of its stroke. Thereafter, heat from the furnace evaporated the fuel/air mixture and produced ignition, driving the piston to the upper end of the cylinder to complete its power stroke and exert an upward push to the rocking beam. As cylinder pressure and temperature dropped, accelerated by the cooling jacket, gravity pulled the piston back down to its original position, exerting a pull on the rocking beam, which in turn, operated a plunger type pump at the other end."
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]]> https://www.datamp.org/patents/displayPatent.php?id=85296&pn=3,545,247 Bending machine Patentee: Raymond John Fazzini - Pawtucket RI Granted:1970-12-08
Manufactured by Torrington Co. - Waterbury CT
Assigned to Maclodyne Corp. - East Providence RI


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