US671655A - Power-transmitting mechanism. - Google Patents

Description

F. T. UVERROCKER. POWER TRANSMITTING MECHANISM.

- (Application flled Dec. 27, 1900.) (N 0 2 Sheets-Sheet No. 67l,655. Patented Apr. 9, IBM.

- Patented Apr. 9, l90l, F. T. OVEBROCKEB. POWER TRANSMITTING MECHANISM.

[Application filed Dec. 27, 1900.

2 Sheets-Sheet 2.

(N 0 Model.)

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UNITED STATES PATENT Orrrcs.

FREDRICK T. OVERROCKER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD TO ALONZO W. ALLEN, OF SAME PLACE.

POWER-TRANSMITTING MECHANISM.

SPECIFICATION forming part of Letters Patent N 0. 6'71 ,655. dated April 9. 1901.

Application filed December 27, 1900, Serial No. 41,235. (No model.)

To mZZ whom, it \may concern: ed in a collar or sleeve d. To the sleeve (1 Be it known that I, FREDRIOK T. OVER- is connected by a pin-and-slotw arrangement ROCKER, a citizen of the United States, resid- (illustrated in Fig. 3) a forked arm (1 adapted ing at the city of Philadelphia, in the county to slide back and forth in a bearing (i ad- 5 ofPhiladelphia and State of Pennsylvania, justably supported by a rod (1 below the tahave invented certain new and useful Imble 6 of the machine to be driven. The arm provements in Powerlransmitting Mechand is adapted to be shifted in the bearing (i ism for Sewing and other Machines, of which by means of a bell crank lever f, one end of the following is a specification. which is slotted and connected by a pin (1 to 10 My invention has relation to a mechanism said arm (1 The bell-crank or angle leverfis for transmitting power from a power-shaft to pivoted, as atf, to a fixed part of the machine, asewing or other similar machine, andin such and the other end of the leverf is connected connection it relates more particularly to the by a link f with a treadle f under the conconstruction and arrangement of snchamechtrol of the operator. The driving-wheel g of 15 anism. the machine g is arranged above theupper The principal object of my invention is to friction-disk 9 supported by and turning provide a power-transmitting mechanism for with the vertically-arranged shaft g To the power-driven machines which is adapted to lower end of the shaft 9 is secured a second be readily controlled and regulated by the friction disk g arranged adjacent to and 2o operator and also adapted to be instantly disadapted to be engaged by the upper frictionconnected from the machine to permit of the Wheel (1 of the shaft 12 when the machine gis immediate stoppage of said machine. to be operated. The shaft g and the two The nature and scope of my invention will friction-disks g and g are adapted to be norbe more fully understood from the following mally depressed under the tension of a spring 25 description, taken in connection with the ac- 9 The function of the spring g is twofold-- com panying drawings, forming part hereof, namely, to press the lower disk 9* firmly in whichdown upon the friction-wheel d on the shaft 1) Figure 1 is an end elevational view of a and to lower the upper disk g out of engagepowertransmitting mechanism embodying ment with the driving-wheel g of the machine 0 main features of my invention. Fig. 2 is a y when the lower disk g is out of engagefront elevational view thereof, and Figs. 3 ment with the friction-wheel d. and 4 are enlarged detail views of the upper The operation of the mechanism is as folportion of the transmitting mechanism. lows: The motion of the friction wheel or Referring to the drawings, 0. represents the disk a on the shaft a is transmitted through 5 main or power shaft, upon which is secured a the friction-wheel b to the shaft b and to the friction wheel or disk ct. Adjacent to one upper friction-wheel d. When this wheel (Z face of this wheel or disk at is located a fricrests under the disk g of the shaft g then tion-wheel b, the face of which, by preferthe said shaft and the disk g are driven, and cnce, is cone-shaped. This friction-wheel b consequently the drivingwheel g of the ma- 9c '40 is secured to a shaft 1), supported at its lower chine g is operated. The shaft b and its upend in a bearingb adapted to swing in a verper friction-wheel d are both adapted to be tical plane in a fork or yoke 6 which fork or shifted by the treadle f and connections, so yoke is adapted to swingin ahorizontal plane as to bring the friction-wheel at under the in a bracket or support I). The lower end of disk g at its periphery or toward the center 45 the shaft b is thus supported by a swiveled of said disk 9 This movement of the fricconnection which permits of the rotation of tion-wheel d will result by reason of the fact the shaft 1), as well as a vertical and sidethat it is carried at the free end of the shaft wise or lateral movement of said shaft b. h, the other end of said shaft oscillating in The upper end of the shaft 1) is provided with a swiveled bearing b and hence as the shaft 109 5o asecond friction-wheel d, andintermediate of b is shifted the wheel d travels in the arc of v the two wheels I) and (l the shaft 1) is supporta circle. When, therefore, the shaft b is shifted in one direction, the wheel (1 approaches and also clears the periphery of the disk 9 as indicated by dotted lines at the right of Fig. 3. When the shaft 1) is shifted in an opposite direction, the Wheel 01 in traveling through the arc approaches the axis 9 of the disk g The manipulation of the treadlef will thus serve to regulate the speed of the disk 9 and consequently of the shaft 9 upper disk 9 and driving-Wheel g, since if the friction-wheel d rests on or near the periphery of the disk 9 the speed of the said disk will be less than if the wheel d rests at or near the center of the disk. The Wheel (1 may be shifted by the treadle f and auxiliaries,v so as to clear the disk g in which instance the upper disk g will be withdrawn by the spring g from the driving-Wheel g and the machine 9 can be instantly stopped by the operator.

Having thus described the nature and object of myinvention, What Iclaim as new, and desire to secure by Letters Patent, is

1. In a device of the character described, a main or power shaft, a second shaft in frictional connection at one end with the powershaft, a driving-wheel for the machine to be operated, a vertical shaft and friction-disk adapted to drive said driving-wheel, and a second friction-disk on said vertical shaft adapted to be frictionally driven by the second shaft.

2. In a device of the character described, a main or power shaft, an inclined shaft, a swiveled hearing at one end of said inclined shaft and in frictional connection with the power-shaft, a friction-disk and shaft adapted to operate the driving-wheel of the machine,- said disk being frictionally connected with the upper end of the inclined shaft, and means for laterally shifting the inclined shaft to increase or decrease the speed of the friction-disk and shaft.

3. In a device of the character described, in combination with a driving-wheel and means for operating the same, of a frictiondisk controlling said means, a main powershaft, a second shaft frictionally connecting the power-shaft With the friction-disk, and means for shifting said second shaft to cause it to approach toward or recede from the center of said friction-disk, whereby the speed of said disk may be varied.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

FREDK. T. OVERROCKER.

Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

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