H. & F. Blandy/F. J. L. Blandy/Blandy Steam Engine Works - Assigned Patents

Manufacturers Index - H. & F. Blandy/F. J. L. Blandy/Blandy Steam Engine Works

H. & F. Blandy/F. J. L. Blandy/Blandy Steam Engine Works
Zanesville, OH; Newark, OH, U.S.A.
Manufacturer Class: Wood Working Machinery & Steam and Gas Engines

Patents

This page contains information on patents issued to this manufacturer.

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Patent Number	Date	Title	Name	City	Description
21,059	Aug. 03, 1858	Steam-Engine	Frederick I. L. Blandy	Zanesville, Muskingum County, OH	The inventors' firm, H. & F. Blandy, also made sawmills. This invention was featured on the front page of the 1860-04-28 issue of "Scientific American". The inventors applied for an extension to this patent. The Patent Commissioner's report said, in part, "The invention covered by the patent upon which an extension is sought relates to a class of steam-engines which, from their extensive employment in connection with saw, flour, and grist mills, and in the various operations of the farm and in mines, have come to exercise an important influence in the material development of the country. The portable steam-engine differs from the stationary engine in that it calls for a much greater degree of lightness, simplicity, and compactness; yet these qualities are not to be secured at the expense of strength and durability. These various features have been attained to an eminent degree by the invention in question. The mode of construction adopted was to erect the engine upon a separate frame or foundation from the boiler. The Blandys' invention was to interpose between the boiler and the engine a hollow continuous bed-plate, upon which the entire working parts of the latter should be supported. The form adopted for the bed-plate was a hollow cylinder. The advantages of this construction are attested by numerous competent and disinterested witnesses, expert machinists and practical engineers. The inventors themselves have manufactured and sold during the term of the patent more than a thousand engines in which it constitutes the distinguishing feature. "The statement of account shows that the net profits received on account of the invention are but a trifle more than nine thousand dollars. A much larger amount than this might have been realized, according to the applicants statement, but for the constant infringements that have been going on, and which it is alleged have thrown upon the market numerous competing machines of inferior workmanship, at prices that have obliged the patentees to sell at figures but little if any above fair manufacturers' profits." The extension was granted.
		Steam-Engine	Henry Blandy	Zanesville, Muskingum County, OH
185,901,659	Jul. 13, 1859	Steam Engines	Henry Blandy	Zanesville, Muskingum County, OH	Abstract: I, JAMES STRANG THOMSON, of Kilmarnock, in the County of Ayr, North Britain, Manufacturer, do hereby declare the nature of the said Invention of "IMPROVEMENTS IN STEAM ENGINES," (being a communication from abroad by Henry Blandy and Frederick T. L. Blandy, of Zanesville, United States,) to be as follows, that is to say : This Invention relates to the arrangement and construction of steam engines, more especially of the portable class, such as are used for agricultural purposes and by contractors and others, but the improvements are also applicable to a greater or less extent to other steam engines, the objects being the securing superior working efficiency and durability of the parts. According to one modification under which these improvements are carried out in practice, a horizontal cylindrical tubular boiler is set upon end pedestals with feet which rest upon the ground as a base, the supports being both at the fire-box and smoke-box end. To the upper side of the boiler there is bolted by broad flanges a hollow or tubular and continuous bed plate extending from end to end of the boiler, and answering as the entire support of the engine, suitable flanges being formed upon it for the reception of the working steam cylinder or cylinders. The cylinder is bolted on at the fire-box end, and the piston rod directly actuates the crank shaft, which is disposed horizontally in bearings over the other or smoke box end of the boiler, one such bearing being on the bed plate and the other on the boiler. This continuous hollow bed plate may or may not be used as a heater for heating the boiler feed water. When so used, the water from the source of supply is forced or drawn by the pump 5 through it into the boiler. The waste steam escapes from the working slide valve into a pipe in the interior of the hollow bed plate, when it is used for the double purpose of heating the feed water and generating a furnace blast, or it is discharged directly into the water in the hollow bed plate, when used solely for heating purposes. In this way the hollow bed plate is turned to economical account, and it keeps all the working parts of the engine quite free from and independent of the boiler. Both the inside and outside fire-boxes of the engine are oval in transverse section, and they are so formed as to be almost entirely self-supporting. The inside box is entirely covered or surrounded with water, and the lower side of 15 both is quite open so as to secure a large extent of grate surface. The upper portion of the external fire-box is cylindrical, whilst its sides are brought in to the narrower width of the fire-grate by easy curves. The curvature of the top of the inside fire-box is flat or oval, and its curvature downwards corresponds to that of the outside box, leaving a water space between the two all around, the open bottom exposed to the fire-grate being the only portion where there is no water space. The slide valve is worked by an eccentric on the main shaft operating a slotted lever or link motion.
		Steam Engines	Frederick T. L. Blandy	Zanesville, Muskingum County, OH
43,387	Jul. 05, 1864	Improvement in pump-gear	Frederick J. L. Blandy	Zanesvile, OH	Of interest because the inventors' firm, H. & F. Blandy, also made sawmills. This patent was a selection for "Patent of the Year" by the "Railroad and Insurance Almanac" for 1865, which summed up the invention as follows: "This invention consists in transmitting the motion from the crank shaft of a steam engine to a counter-shaft for working the feed pump by means of a system of friction wheels, one of which is arranged as an idle wheel to be thrown in and out of gear as required to connect the pump with and disconnect it from the engine, the object being to effect such connection and disconnection in a more easy manner than can be done by the means heretofore used, and to relieve the engine of all avoidable friction, and the driving gear of the pump of all avoidable wear when the pump is not in operation."
		Improvement in pump-gear	Henry Blandy	Zanesville, OH
43,471	Jul. 12, 1864	Improvement in Valve-Gear for Steam-Engines	Frederick J. L. Blandy	Zanesville, Muskingum County, OH	The Inventors' Firm, H. & F. Blandy, Also Made Sawmills. Abstract: This invention consists in an improved arrangement of the valve-chest and valve and of the connections between the valve-rod and eccentric, whereby the power to drive the valve is transmitted in a more direct manner. The invention is applicable with more especial advantage to horizontal engines, in which the valve chest and valve are on the top of the cylinder, in which case it dispenses with the rock-shaft commonly used in such engines. Claim: We claim as our invention and desire to secure by Letters Patent-The method of connecting the valve-rod a with the eccentric-strap G by means of the offset arm e, diagonal brace I, and rod H, forming a frame which is jointed to the end of the valve-rod.
		Improvement in Valve-Gear for Steam-Engines	Henry Blandy	Zanesville, Muskingum County, OH
56,145	Jul. 03, 1866	Improvement in head-blocks for sawmills	C. Leffingwell	Clarksburg, OH
97,302	Nov. 30, 1869	Improvement in head-blocks for sawmills	C. Leffingwell	Zanesville, OH
177,263	May. 09, 1876	Saw-Gummer	Eli McCloy	Zanesville, Muskingum County, OH
256,157	Apr. 11, 1882	Sawmill head-block	Ezra Parker	Plainfield, OH	C. H. Wendel's "The Circular Sawmill" reproduces an illustration from an 1882 issue of "American Machinist" that shows a sawmill with this design. The patent date is just legible on the feedworks control lever. The machine itself has unusually ornate castings. The patent is for a headblock that allows the sawyer to disengage either of the headblock knees at will, which simplified the sawing of tapered lumber.
		Sawmill head-block	Isaac D. Parker	Plainfield, OH
481,141	Aug. 16, 1892	Governor for Steam Engines	Frederick C. Dietz	Zanesville, Muskingum County, OH