US772126A - Fan-motor. - Google Patents

Description

PATENTED OCT. 11, 1904.

F. BOGKELMAN & W. G. DBKE.

FAN MOTOR. I APPLIUATION FILED MAR. 10, 1904.

no 110mm. 2 sums-sum 1.

y PATENTED OCT. 11, 1904. F. BOOKBLMAN & W. G; DBKE.

FAN MOTOR.

APPLICATION FILED MAR.10, 1904.

2 SHEETS-SHEET 2.

NO MODEL.

7 UNITED STATES Patented October 11, 1904.

PATENT OFFICE.

FAN-MOTOR.

SPECIFICATION forming part of Letters Patent No. 772,126, dated October 11, 1904.

Application filed March 10, 1904.

T0 at whom it may concern:

Be it known that we, FREDERIoK BOOKEL- MAN and WILLIAM C. DEKE, citizens of the United States, residing at Alma, in the county of Lafayette, State of Missouri, have invented certain new and useful Improvements in Fan-Motors; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to fan operating mechanisms; and it has for its object to provide a simple, durable, and compact construction which may be secured upon the wall of a room at the desired elevation and connected by means of a belt or cord with a fan-shaft, a further object of the invention being to provide a mechanism which may be easily and quickly wound up after it has .run down.

A further object of the invention is to provide a simple and eflicient means for governing the speed of rotation of the fan.

In the drawings forming a portion of this specification, and in which like numerals of reference indicate similar parts in the several views, Figure 1 is a detail sectional view showing the winding-drum and its returningspring. Fig. 2 is afront elevation of the motor, the casing having its front portion removed. Fig. 3 is a section on line 3 3 of Fig. 2.

The motor comprises a frame, including the side plates 16 and 17 in which are journaled the transverse shafts 18, 19, 20, and 21, of which the shaft 18 is the driving-shaft and carries the driving-pulley 22. Upon the shaft 21 is mounted a Winding-drum 23, within which is disposed a helical spring 24, one end of which is secured to the drum, while the other end is secured to a collar 25, fixed upon the plate 17 and entering the end of the drum. At the opposite end of the drum projects a clutch member 26, having clutch-teeth 27 for engagement with the teeth 28 of a clutch member 29, which is fixed upon the shaft 21. The spring serves to hold the drum, with the clutch-teeth 27, normally engaged with the clutch-teeth 28. Furthermore, if the drum be rotated in one direction, so as to maintain engagement of the clutch-teeth, the helical Serial No. 197,416. (No model.)

spring will be wound up, and if the drum be then released the spring will rotate it in the opposite direction and draw the teeth 27 from the teeth 28, this rotation being continued until the spring is unwound. It will be noted that the teeth are beveled, so that as the drum is rotated in one direction their engagement will be maintained and when the drum is rotated in the opposite direction the teeth will be moved apart. When the drum is rotated with the teeth in engagement, the shaft 21 is rotated with it. and to thus rotate the drum a weight 30 is provided having attached thereto a cord 31, which is wound upon the drum, the cord in unwinding from the drum by the pull of the weight serving to rotate the drum. When the cord 31 has been entirely unwound from the drum, the weight is lifted when the spring 24 serves to reversely rotate the drum and rewind the cord thereon.

The shaft 21 carries the gearwheel 32, meshing with the pinion 33 on shaft 20, which latter carries a gear 34, meshing witha pinion 35 on the shaft. 19, the shaft 19 in turn carrying a gear-wheel 26, which meshes with the pinion 37 on the shaft 18, so that as the drum is rotated under the influence of the weight 30 the shaft 18, and therewith the driving-pulley 22 thereon, is rotated.

In order that the speed of the driving-pulley 22 may be substantially constant, a governing mechanism is provided. Upon the outer face of the plate 17 are mounted the two brackets 38 and 39, which are vertically spaced and in which is journaled a shaft 40, carrying a beveled pinion 41, which meshes with a beveled pinion 42, fixed upon the end of the shaft 19 which projects through the plate 17, so that the shaft 40 is rotated. The pinion 41 is carried by a sleeve 43, which is slidably mounted upon the shaft 40 and in the peripheral groove 44 of which is received the bracket 38, so that the sleeve is held against vertical movement, while it is free to rotate with the pinion 41. Links 45 and 46 are connected, respectively, to the head 47 at the upper end of the shaft 40 and to the sleeve 43, the links 45 and 46 being pivotally connected in pairs through the medium of weights 47. With this arrangement as the shaft 40 ro tates, and therewith the sleeve 13, the weights 47 move outwardly by centrifugal force and the shaft 10 is slid downwardly to the sleeve 43. This outward movement of the weights is against the action of the helical spring 49, which connects them.

A lever is pivoted to the plate 17 and comprises a vertical portion or member 50, having the arms 51 and 52 extending in opposite directions at. its ends. The arm 51 extends transversely of the shaft 40, and with it said shaft has a swivel connection. The arm 52 extends through the plate 17, and attached to its free end is a cord 53, which passes upwardly around a pulley 54:. mounted in a bracket 55 on the inner face of the plate 17 and thence upwardly to the top of the casing, where it is attached. Thecord 53, at a point between the pulley 54 and its point of attachment to the top of the casing, is passed once around a friction drum 55, mounted upon shaft 18. When the shaft is moved downwardly by outward movement of the weights 47, the arm 51 is. swung inwardly to place the cord 53 under tension and increase the friction between it and the drum 55, this friction being increased and diminished as the speed of rotation of the shaft 40 increases or decreases. In this manner the speed of the motor is maintained practically constant.

WVhat is claimed 'is 1. A motor comprising a driving-shaft, a power-shaft, connections between said shafts, a hollow Winding-drum having one end open and the other end closed, said drum being disposed upon the power-shaft and rotatably engaged therewith at its closed end, a plug mounted upon the power-shaft and engaged in the open end of the drum for rotation of the latter thereon, a helical spring within the drum attached at one end to the closed end of the drum and at its opposite end to the plug, a clutch member carried by the closed end of the drum and a second clutch member fixed upon the power-shaft in position for engagement by the clutch member upon the drum.

2. A motor comprising a power-shaft, a driving-shaft operatively connected with the power-shaft, a frame in which said shafts are mounted, a friction-drum upon the drivingshaft, a lever comprising a straight central portion pivoted upon the outer face of the frame, said lever including terminal arms extending laterally in opposite directions, one of said arms being passed through the frame, a cord attached at its ends to said arm of the lever and to the frame and having its intermediate portion wound upon the frictiondrum, a knife-pulley mounted upon the frame between said lever-arm and the friction-drum and disposed to hold the cord from. displacement from the latter, a slidable and rotatable shaft connected with the outer arm of the lever, centrifugal means connected with said shaft for shifting it longitudinally and means for rotating said shaft from the power-shaft.

In testimony whereof We afliX our signatures in presence of two Witnesses.

FRED. BOCKELMAN. WILLIAM C. DEKE.

l/Vitnesses:

HERMAN BREMER, R. C. FRERKING.

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