Improvement in windmills
US 144137 A
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Description (OCR text may contain errors)
S. H. RADWAY.
Wind-Mills. v No. 144,137. Patented0ct.28,1873.
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SAMUEL n. RADWAY, or BERLIN, WISCONSIN.
IMPROVEMENT IN WINDMILLS.
Specification forming part of Letters Patent No. 1&4, 137, dated October 28, 1873; application filed August 2?, 1873.
To all whom it may concern:
Be it known that I, S. H. RADWAY, of Berlin, in the county of Green Lake and State of Wisconsin, have invented an Improvement in IVindmills, of which the following is a specification:
The nature of this invention relates to an improvement in geared windmills, having for its object to so construct them that they cannot turn out of the wind when work or resistance is thrown on the vertical shaft, and to simplify the construction and cheapen the cost of such mills. The invention consists in the peculiar arrangement of the upper section of the up right shaft, its pinion, and the driving-wheel with relation to the wind-wheel. shaft, as more fully hereinafter set forth.
Figure 1 is a side elevation. Fig. 2 is a longitudinal vertical section of the turn-table and gearing. Fig. 3 is a cross'section of the coupling at 00 0c in Fig. 1.
In the drawing, A represents the frame-work of the derrick or tower of the windmill, to the top of which is secured a bed-plate, cast with a circular flange or collar, B, on which is sleeved the cylindrical pendent double flange of the turn-table G, having bolted to it two standards, D, in which is journaled the horizontal windwheel shaft E, to which is keyed a bevel-geared driving-wheel, F, whose pitch-line is in the upward prolongation of the axis of the turn-table. G is the lower section of the vertical shaft, from which power is transmitted through gears or pulleys to the machines to be driven, and is stepped and journaled in the prolongation downward of the axis of the turn-table. H is the upper section of the vertical shaft, having its lower end squared, as at a, and inserted in a square socket formed in the upper part of the coupling I), attached rigidly to the top of the shaft G, while its upper end passes through a bridge-tree bearing, I, on the turn-table, with a bevel-pinion, J, keyed on its extremity, which pinion meshes With the driving-wheel F. An annular spring washer, 0, is interposed between the seat of the turn-table and the top of the bed-plate sleeve, to lessen the friction between them, and facilitate the movement of the former in the changes of direction in light winds.
The arrangement described throws the upper section II of the vertical shaft about onefourth of an inch to the foot out of the perpendicular, or half the diameter of the pinion, which is compensated or neutralized by the loose fit of the coupling. The wind-wheel has no power to turn the table around, so as to throw the wheel out of the wind, but when the wind changes its direction the table turns easily.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. The arrangement of the geared drivingwheel of a windmill upon its shaft so that its pitch-line will be at a prolongation of the axis of its turntable, substantially as and for the purpose set forth.
2. The construction and arrangement of the drivingwheel F, pinion J, and shaft H, with relation to the driving-shaft E and vertical shaft G, substantially as and for the purpose set forth.
SAMUEL H. RADWAY.
itnesses H. P. hlERR-IAM, J. Lnncn.