US1487871A - Ironing wheel - Google Patents

Description

March 25', 1924o D. F5 MCGOVERN IRONING WHEEL Filed March 8'. 1925 Hi: Il

Patented Mar. Z5, i924.

sa gy i DANIEL F. MCGOVERN, 0F MONTPELLIER, VERMONT.

IRONING.i WHEEL.

Application led March 8, 1923.

To all whom t may concern.'

Be it known that I, DANIEL F. MoGovERN, a citizen of the United States, residing at Montpelier, county of Vashington, State of Vermont, have invented certain new and useful Improvements in Ironing Wvheels, of which the following is a specification.

My present invention relates to an ironing wheel and particularly to an ironing wheel having a center feed. lVhile efforts have been made to use centerA feed ironing wheels they have not heretofore been found satisfactory and the art has developed along the lines of the peripheral or self-feeding wheels which tended to draw in the shot as it was rotated and moved over the stone.

This type of wheel has been generally successful and in some forms attained a fairly satisfactory degree of efficiency and rapidity of cut. Theoretically the center feed wheel, especially if adapted to be mechanically fed, offered possibilities of much higher eticiency and greater cutting speed. The difficulty was, however, that the shot generally worked out from under the wheel too rapidly or the wheel failed to work it against the stone efficiently.

My present invention contemplates a wheel in which these difficulties are avoided, which is capable of beingfed either by a manual or mechanical center feed and has a very rapid and efficient cutting power, and all this without any considerable addition in cost or difficulty in operation.

As illustrative of my invention I have shown herein a wheel which I have found very satisfactory for practical use and which illustrates the principles of my invention. In the drawings illustrative thereof Fig. l is a lower face view .of the selected embodiment.

Fig. 2 a side elevation thereof, and

Fig. 3 a section on the line 33, Fig. 1.

This wheel comprises a top or cover plate A of circular or disc shaped form having a central aperture B surrounded by a feeding collar or hopper C which may be formed on or attached to the plate A in any desired manner. Across the aperture B is mounted the yoke D having lugs d for connection with the driving spindle of the machine. Mounted on the lower face of the plate A and preferably bolted thereto so as to be removable and replaceable, are a series of ironing flanges E which are preferably arc Serial No. 623,787.

shaped and arranged generally in two opposed similar groups on each side of an axis of the wheel and from centers slightly displaced in such axis, one on each side of the central vertical axis of the wheel. These flanges E have therefore the general effect of spiral flanges but on account of their arc forni are easier and cheaper Ato manufacture than corresponding spiral flanges. Such flanges in the ordinary peripheral feed wheel have a tendency to create a radially inward draft from the edge of the wheel towards the center, in opposition to the centrifugal tendency of the wheel to throw the shot out from the center towards the edge. These tendencies I have balanced by forming gaps or spaces e between adjacent flanges so that the centrifugal action is permitted to a certain degree. In such a form, however, the intake of the wheel would predominate. I provide an external continuous flange F completely surrounding the wheel thus shutting off all external intake or draft and making it possible for me to utilize the internal factors with the center feed so that the shot or other abradant is kept for a maximum time working across the fianges and thus operating to cut the surface of the stone.

Such wheels have a very high efficiency and cut at an exceedingly rapid speed and can be handled by the operatorv with no more difficulty than wheels of the old type.

The work produced is of a highly satisfactory character and the life of the wheels is fully proportionate to the work done and in addition there is a minimum tendency of the wheel to throw Shot from the bed so that the wheel is particularly available for mechanical feeding in which the shot is collected and used again.

Various modifications may obviously be made in the design of my wheel and in the character and disposition of the flanges employed. It will therefore be understood that while I have shown what I believe to be the most efcient and satisfactory form, that other shapes and styles of flanges may be used and variously disposed within the outer continuous draft checking flange, all without departing from the spirit of my invention as defined in the appended claim.

What I therefore claim and desire to secure by Letters Patent is An ironing wheel of the class described comprising a cover plate having a central Jfeeding aperture, a, feed hopper disposed about said aperture, a continuous draft cheek disposed about the Wheel substantially at its periphery and a plurality of eurved flange segments disposed. to feed in- Wardly of the Wheel Within said enclosing outer draft check, said Wheel having radial openings in its VHanging permissive of the outward centrifugation of the shot.

In testimony whereof I aix my signature in presence of two Witnesses.

DANIEL F. MCGOVERV. Witnesses: Y

MARIAN F. lVErss, JENNETTE C. STRUMPH.V

Images