Manufacturers Index - F. H. Crafts/Crafts Machine and Tool Co.
F. H. Crafts/Crafts Machine and Tool Co.
Buffalo, NY, U.S.A.
Manufacturer Class:
Metal Working Machinery
This page contains information on patents issued to this manufacturer.
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174,203
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Feb. 29, 1876
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Pulley
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Francis H. Crafts |
Williamsport, Lycoming County, PA |
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499,159
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Jun. 06, 1893
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Driving Mechanism for Lathes
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Francis H. Crafts |
Buffalo, Erie County, NY |
Charles J. Good - patent attorney
Even though this patent was for a Driving Mechanism for Lathes, it was incorporated into a Radial Arm Drill ( see image #2).
The Crafts Radial Drill.
The most important feature of this drill, which is built by F. H. Crafts of Buffalo N. Y., is to be found in the method employed to obtain the several changes of speed required in machines of this type. The changes from the fastest to the slowest speed can be made instantly, and any tension of the belt can be secured to carry the lightest or heaviest load. This is accomplished by the employment of four endless belts, each of which is provided with a tightener. These tighteners are controlled by a series of levers, having notches planed in them at intervals of 1/2 inch. This enables the operator to make rapid changes and to almost double the capacity of the drill. The general arrangement of the belts is shown at the left in the engraving. The drill is made unusually heavy in all its parts. It has power raising and lowering attachment, the drill spindle has quick return, is counter-weighted and provided with automatic feed. Either a box or tilting table is provided. All the shafts, spindles, worms and worm rings are made of steel, and all gearing is cut from the solid and the main gearing is made of steel. The principal dimensions of the No. 1 machine are : Diameter of column, 10 inches; distance from floor to highest point of column, 7 1/4 feet; distance from elevating screw to center of drill spindle when at the extreme point of the arm, 3 feet 7 inches; vertical range of arm on the column, 2 1/2 feet; receives under spindle over base, 4 feet 2 inches receives under spindle over floor, 4 feet 9 1/2 inches; traverse of spindle, 15 inches; floor space occupied, 4 feet 7 inches by 7 feet 4 inches; weight, 4500 pounds.
from Iron Age magazine
13 Jul, 1893
Patented in Canada, #46,598. |
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46,598
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Jul. 16, 1894
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Driving Mechanism for Machinery
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Francis H. Crafts |
Buffalo, Erie County, NY |
This mechanism was patented in the U. S., #499,159. |
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189,412,204
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Jul. 28, 1894
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Improvements in Belt Driving Mechanism for Machinery
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Francis H. Crafts |
Buffalo, Erie County, NY |
Patented in the U. S., patent #622,329. |
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622,329
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Apr. 04, 1899
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Speed Changing Driving Mechanism for Lathes
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Francis H. Crafts |
Buffalo, Erie County, NY |
Patented in Great Britain, patent #189,412,204.
Wilhelm & Bonner - patent attorneys
Abstract:
This invention relates to a driving mechanism for lathes and other machines in which it is necessary to change the speed of the machine in accordance with the nature of the material or the character of the work to be performed, and more especially to driving mechanism which permits the speed to be quickly changed, without the necessity of shifting the belt leading to the driving-pulley of the machine. Such a variable-speed driving mechanism is shown and described in Letters Patent of the United States No. 499,159, granted to me on the 6th day of June, 1893. The object of my present invention is to simplify the driving mechanism and to improve the construction of the belt-tighteners used in connection therewith. |
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728,547
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May. 19, 1903
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Journal Box
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Francis H. Crafts |
Buffalo, Erie County, NY |
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