USD29312S - Design for a manhole-cover - Google Patents

Description

OR D29031Z DESIGN.

Patented Sept. 6, i898.

T. P. GREGER.

MANHOLE COVER.

(Application filed Aug. 9, 1898) J E a- WAX/meow:

UNITED STATES PATENT OFFICE.

THOMAS I. GREGER, OF PHILADELPHIA, PENNSYLVANIA.

DESIGN FOR A MANHOLE-COVER.

SPECIFICATION forming part of Design No. 29,312, dated September 6, 1898. Application filed August 9, 1898. Serial No. 688,217- Term of patent 14 years.

T0 at whom it may concern.-

Be it known that I, THOMAS P. GREGER, a citizen of the United States, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented and produced a new and original Design for a Manhole-Cover, of which the following is a specification, reference being had to the accompanying drawings, forming part thereof, in which- Figure 1 is a top or plan view of a manholecover, showing the particular shape or configuration of the cover of my said design; and Fig. 2 is an elevational view, partly in section, of the said cover on the line a; a: of Fig. 1.

The leading feature of my design consists of the unitary structure made the subject of illustration and having the particular shape or configuration shown and hereinafter described.

In the drawings, a is the cover,which is substantially dish shape in cross-section and having a base or bottom b, upwardly or convexly bent inward. The base or bottom b of the cover is oifset at b and merges into a surrounding wall or rim 0, on the top surface of which concentric grooves or recesses d are provided, as fully illustrated in Fig. 1. In the periphery of the wall or rim 0 are provided recesses e at suitable distances apart around said wall or rim and tapering gradually from top to bottom of the said wall or rim, as fully illustrated in Fig. 2.

fis a semicircular lug made flat on top and which is curved at and to the base of the same, as illustrated in Fig. 2 of the drawings.

Having thus described my invention, what I claim as new, and desire to seou re by Letters Patent, is

The design for a manhole-cover, substantially as shown and described.

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

THOMAS P. GREGER.

Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

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