US109237A - Improvement in the mode of preventing the heating of axles or journals - Google Patents

Description

.` aan site @dat effet ntrzA-D. MURFEY, or NewV YonK,'N.Y. ,Ass1eNoR-ro THE-MANHATTAN PACKING MANUFACTURING COMPANY, or'sAMn PLAGE.

Letters PatentNo. 109,23?, dated November 15,1870.

IMPROVEMENT IN THE IvIoDE. oF PREVENTING THE HEATING oF A xLEs 0R JOURNALS.

The Schedule referred to'ln these Letters Patent and making part of the sanne.

I, ELIZA D. MURNEY, of New York, county of N ew rYork, State of New York, have invented a Mode of Preventingthe Heating of Shafts, Journals, Grank.

Pins, tc., of which the following'is a specification.

Nature and Object of the Invention.

My invention consists in providing a journal, crankpin, or shaft with' one or more pointed projections,"

arranged as fully described hereafter, so asfto prevent the undue heating of the pin or journal, and of the bearing in which it turns.

Descript'ioaof the Accompanying Drawing.

Figure l represents sufficient of a drivin g-shaft with its pulley and bearing to illustrate my improvement; and

Figure 2 is a perspective view of part of a crankpi-n, showing a modification.

Genera-l Description.

The heating of journals, crank-pins, and their boxes is a source of inconvenience and loss, which it is the object of 1ny invention to obviate. Y

'lo accomplish this result I provide the journal or shaft with one or more pointed projections, the application of which, as practical tests have shown, prevents the excessive heating of the journals and their bearings. j

`The said projections may he arranged in various ways; for instance, pointed pins may be secured at equalv distances apart on the shaft, so as to extend radially from the same, or pointed pins, all curved or bent in the same direction,may be secured to the end of the journal, as shown in fig. '2, or the end of the shaft may he tapered or conical, but in practice I have found that a most satisfactory result is produced by fitting to the end of the pin or shaft aaletachable metallic cone, A, fig. 1, having a spiral groove on the outside, and a projecting needle, a, at its apex.

By actual experiment, witha shaft carrying-wheel four feet in diameter, driven by a nine-inch belt, andturning four hundred and eighty (480) revolutions a minute, I have found that when provided with a pointed projection or` projections, as described, `-the journal would not becomc'unduly heated, but that, on the removal of the said projection, all the other conditions being the same, the 'heat of the bearing would increase to such a degree the water would boil when poured upon it. Y

Inasrnuch as any desired number of pointed projections may be used, and as the arrangement of theY same on the journal or shaft will not affect the result, I do not limit myself1 to any special number or arrangement of pointed projections; but

I claimj A shaft or journallnovided with a detachable metal cone, lor with one or morepointed projections, substantiall y as and for the purpose described.

In testimony whereof, I have signed my name to this specification iu the presence of two subscribing witnesses. Y

ELIZA D. MURFEY;

Witnesses:

CHARLES E. FOSTER, ALBERT H. Nomns.

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