US665380A - Grinding-wheel support. - Google Patents

Description

No. 665,380. Patented Ian. I, I90l.

' B. F. BARNES.

GRINDING WHEEL SUPPORT.

(Applxcat on filed Oct 13 1900) 2 Sheets-Ghent l.

(No-Modal.)

No. 665,380. Patented Ian. I, 190i. B. F. BARNES.

GRINDING WHEEL SUPPORT.

(Application filed Oct. 13, 1900.) (No Model.) 2 Sheets-Sheet 2.

BENJAMIN F. BARNES, OF ROCKFORD, ILLINOIS, ASSIGNOR TO THE B. F.

BARNES COMPANY, OF SAME PLACE.

GRINDING-WHEEL SUPPORT.

SPECIFICATION forming part of Letters Patent No. 665,380, dated January 1, 1901.

Application filed October 13,1900. Serial No. 82,922. 1N0 model.)

To a whmn it ntcty concern:

Be it known that I, BENJAMIN F. BARNES, a citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented certain new and useful Improvements in Grinding-Wheel Supports, of which the following is a specification.

The object of this invention is to construct a grinding-wheel support and means for presenting water to the wheel, the means operated by a pressure of the body of the operator.

In the accoin panying drawings, Figure 1 is an isometrical representation of my improved grinding-wheel support. Fig. 2 is a plan view of the Water-reservoir and means for raising it. Fig. 3 is a plan view of the base. Fig. 4 is an elevation and partial section. Fig. 5 is a transverse section of the base and Waterreservoir.

I am aware that grinding-wheel frames have means attached for presenting water to the revolving wheel, the means being operated by a hand-lever or foot-treadle. In the frames employing a hand-lever the operator neglects to turn off the water, and at various points in grinding more or less water is desired, which necessitates the operator stopping work to move the hand-lever. In frames employing foot-treadles the operator is required to sustain his entire weight upon one foot, while the other foot is employed to operate the treadle to regulate the quantity of Water presented to the wheel. The base of my improved grinding-wheel frame consists of the bottom 1, having two sides 2. An opening 3 extends through the bottom in its lengthwise direction. A deflecting-flange 4 extends around this opening, and the rear portion thereof has an outwardly-extending portion 6. A grinding-wheel 7 is supported to revolve in bearings 8 and is driven by a belt connection with the pulleys 9. A hood 10 is supported by the base and has a pivoted extension 11. A toolrest 12 has an adjustable connection with the base. A base is supported by the front legs 13 and the rear legs 14. To. the front face of the front legs are secured bearings 15, between which is pivotally supported a rockshaft 16. From the rear face of this rockshaft extends a double cam 17, having a notch or recess 18 at the center of the cam. To the front face of this rock-shaft is secured a socket having three sections 19, and within each section is secured an arm 20. A bar 21 is pivotally supported in bearings 22 in the front legs, the bearings being in hook form, which permits the removal of the bar. From this bar extend two arms 23, each having a pintle 24, extending inward, and an arm 25 extends downward from this bar and is provided with crossbar 26, having its ends rounded. A projection 27 extends from the arm 25 and supports a roller 28, which is located in the central notch 18 of the double cam.

In bearings 29, formed in the upper portion of the rear legs, is seated a bar 30 in a removable manner and has two rearward extensions 31, each provided with an inwardlyextending pintle 32. These pintles 32 support a bar 33 by the depending arms 34, having a detachable connection with the pintles 32. From the bar 30 extends an arm 35, having a cross-bar 36 at its lower end. A link 37 has its ends forked and provided with open bearings, one end located in connection with the cross-bar of the arm 25 and its other end located in connection with the cross-bar of the arm 35, thereby forming a connection between the arms.

A water reservoir 38 is of a form corresponding to the form of the grinding-wheel 7, but of a larger radius. The ends of this water-reservoir have hooks 39 extending from its front end and hooks 40 extending from its rear end. The hooks of the front end rest upon the pintles 24, and the hooks of the rear end rest upon the bar 34, thereby forming a connection between the bars and the waterreservoir. The rear portion of the water-reservoir has inwardly-extending flanges 41, which are located over the outwardly-extending flanges 6 of the bottom 1.

In the construction above described by the movement of the arms 20 the double cam 17 will be moved, which will cause the roller to rock the arm upon its pivotal connection with the front legs. This rocking movement will impart a rocking movement to the bars 21 and 33 through the link 37, connecting them, and as the water-reservoir is supported by these bars it will be raised bodily, and the water in the reservoir will be brought in contact with the grinding-wheel, which will elevate it and carryit over into contact with the tool to be ground, and the greater the movement of the double cam the higher will the water-reservoir be raised and more water presented to the grinding-wheel. By employing the double cam a movement of the arms 20 in either direction will elevate the link connection and raise the water-reservoir. The

flange 4, depending from the under side of the bottom, guides the water into the waterreservoir, and the flanges 6 and 41 serve to prevent the water from splashing out when thrown by the grinding-wheel. The arms 20 are located beneath the forward end of the base and at a proper height to receive a pressure from the body of the operator, and as soon as the pressure is released the arms will return to their normal position by reason of the weight of the water-reservoir operating upon the link connection with the roller 28 and through it to the double cam 17, which will cause the roller to enter the notch 18, thereby holding the arms in their normal po sition.

By operating the water-reservoir by a pressure of the body the operator can stand squarely on both feet, and his hands are free to attend to the grinding of the tool, and the instant the body-pressure is released the wt ter-reservoir will drop'and allow the grindingwheel to run dry, and the greater the pressure the greater will be the water elevated by the grinding-wheel.

By lateral movement of the means for operating the water-supply, I mean a pressure by the operator against the in cans, which allows the operator to stand upon the floor and have free use of his hands, and by the act of pressing against the means the water is turned on or brought against the wheel.

By the term water-supply used in the specification and claims, I mean any source by which water is presented to the grindingwheel, and therefore I do not limit myself to the employment of a water-reservoir.

I claim as my invention- 1. A grinding-wheel support, comprising a base, a water-supply, and an arm capable of a lateral movement for regulating the watersupply.

2. A grinding-wheel support, comprising a base, a watensupply, and an arm capable of a lateral movement and an automatic return movement for regulating the water-supply.

3. A grinding-wheel support, comprising a base, a water-reservoir located beneath the base, and means for raising the reservoir and permitting its automatic return.

4. A grinding-Wheel support, com prisinga base, a water-reservoir located beneath the base, an arm capable of a lateral movement, and a connection between the arm and waterreservoir.

5. A grinding-Wheel support, comprisinga base, a water-supply, a series of arms having a pivotal support, and a connection between the arms and water-supply.

6. A grinding-Wheel support, comprising a base, a water-supply, an arm, a double cam moved by the arm, and a connection between the cam and watersupply.

7. A grinding-wheel support, comprising a base, a water-reservoir, a series of arms, a double cam moved by the arms, and a connection between the cam and reservoir.

8. A grinding-wheel support, comprising a base, a Water-reservoir, a link connection between the reservoir and base, a series of arms, a double cam moved by the arms, and a connection between the link connection and double cam.

9. A grinding-wheel support, comprisinga base having an opening and a depending projection, the projection having an outwardlyeXtending flange, a water-reservoir receiving the projection and having an inwardly-extending flange overlying the outwardly-extending flange, and means for raising the water-reservoir.

BENJAMIN F. BARNES.

Witnesses:

A. O. BEHEL, E. BEHEL.

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