US572447A

US572447A - Frederic e

Info

Publication number: US572447A
Authority: US
Publication date: 1896-12-01
Anticipated expiration: 1913-12-01

Description

(No Model.)

P. E. PUPPER, PAVING ROLLER.

No. 572,447. Patented Dec. 1, 1896.

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A-TTORN EYS UNITED STATES PATENT OFFICE.

FREDERIO E. PUFFER, OF NEIVTON, MASSACHUSETTS, ASSIGNOR TO THE \VARREN-SCHARF ASPHALTPAVING COMPANY, OF NEW YORK, N. Y.

PAVING-ROLLER.

SPECIFICATION forming part of Letters Patent No. 572,447, dated December 1, 1896.

Application filed June 4,1896. Serial No. 594,338. (No model.)

To all whom, it may concern.-

Be it known that I, FREDERIO E. PUFFER, a citizen of the United States, residing at Newton, in the county of Middlesex and State of Massachusetts, have invented new and usef ul Improvements in Paving-Rollers, of which tered in uniformly distributing the oil, and if in excess or unevenly distributed the oil is not only wasted, but an excessive supply of oil or occasional excessive spots of oil will soften the pavement or cause soft spots in the pavement. Water has been tried, but to prevent sticking liberal supplies of water must be used, which tend to excessively or prematurely cool the pavement and prevent satisfactory work.

By this invention oil-jets are thrown by steam-pressure or mingled with steam against the roller-surface, whereby even distribution of oil'and moisture is secured and a comparatively minute quantity of oil and steam effects a satisfactory result and the pavement is satisfactorily finished.

The invention is set forth in the following specification and claims, and illustrated in the annexed drawings, in which Figure 1 shows a rear elevation of a roller. Fig. 2 is a side elevation of Fig. 1. Fig. 3 is a plan view of Fig. 1.

The roller 1, being driven over the asphalt pavement 2 while the latter is still soft or hot, will smooth the pavement. Extending across the roller is a tube 3 with fine spray or outlet openings 4'. Into this tube flows oil from cup 5 and the steam from pipe 6 enters pipe 3 and forces out the oil through openings at in a spray or jets against the roller 1. The

steam and oil together enable a slight quantity of such oil and steam to prevent sticking,

actual test having shown that for satisfactory Work not more than one pint of oil per working-day of ten hours is required for a roller having a length or contact-line with the pavement of thirty inches. The steam admitted to jet-pipe 3 is j ust sufficient to cause the jets to strike the roller-face, and the jetopenings 4: are so small and numerous that the entire surface of the roller is lubricated or moistened by the jets from outlets 4. Furthermore, the hot steam mingled with the oil aids in keeping the roller Warm, or at least avoids cooling of the roller, so that the contact of the roller with the pavement will not prematurely cool the latter to prevent satisfactory smoothing or leveling. Live steam for the inlet-pipe 6 has been found most satisfactory.

As the rollers are generally driven by or form part of a steam-engine, steam for the pipe 6 is readily obtained.

That I claim as new, and desire to secure by Letters Patent, is

1. A roller combined with a jet-tube extended across the roller and having its jetopening facing the same, said jet-tube having an oil cup or reservoir leading into the tube and a steam-pipe or pressure-inlet leading into the tube for expelling the oil therefrom through'the jet-openings substantially as described.

2. The combination with a roller, of a jettube arranged in proximity to and provided with a plurality of jet-openings facing the periphery of the roller, means for feeding oil to said tube, and means for introducing steam to the jet-tube for expelling the oil therefrom through the jet-openings onto the periphery of the roller, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses. FREDERIC E. PUFFER. Witnesses:

WM. 0. HAUFF, E. F. KASTENHUBER.