US1219991A - Rubber heel. - Google Patents

Description

F. A. NOLAN.

Y RUBBER `HEEL APPLICATION FILED IULY I7, |916.

Putentd Mal'. 20, 1917.

. embedded therein,

UNITED. sTATEs PATENT oEEIoE.

:FRANCIS A.v NOLAN, OF ST. PAUL, MINNESOTA.

RUBBER HEEL.

To all whom z't may concern.'

Be it known that I, FRANCIS A. NoLAN. `-a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new anduseful Improvement in Rubber Heels, of which the following is a specification.

This invention relates to improvements in is adapted to be nailed on to the shoe. More particularly the object of the present invention is to provide improved means for causing the nails to most effectively secure the rubber heel on to the shoe. It has been common practice to provide rubber heels with metallic washers or metallic plates and formed with nail holes but as commonly constructed the nails must be made to register with the holes in the embedded washers or plate, in order to insure that. the nails pass directly and not slanting therethrough. Where the washers or plates are providedwith holes more than the number of nails which are used for securing the rubber heel on the shoe, such washers or plates are necessarily weakened. The object of the present invention is to provide the heel with a plate preferably of metal embedded therein, and so constructed that the nails when ldriven through the heel and into the shoe will fperforate the plate without the necessity o previously made in the rubber to register with the points at which the plate is perforated.

To these ends my invention comprises the features of construction and combination of parts hereinafter more particularly described and defined in the claims.

In the drawing, Figure 1 is a plan of a rubber shoe heel, a portion 'thereof being broken away and in section to disclose the plate which is embedded therein; Fig. 2 is a section taken upon the line X-X of Fig. 1; Fig. 3 is a section of a detail illustrating two positions which the nalls assume in the act of securing the rubber heel on the shoe; Fig. 4 is another section of a detail illustrating a position which a nail assumes when driven against a plate not,

constructed in accordance with my invention; Fig. 5 is a plan of a rubber heel containing a fastening plate of alternatlve construction, a portion of the heel being broken away and in section for the purpose of'exposing a portion of the plate; Fig. 6 1s a Specification of Letters Patent.

guide holes being,

' tion of the -lower surface of the Patented Mar. 20, 191 7.

Application led July 17, 1916. Serial'lo. 109,654.

of a shoe and a detail of a heel ofthe construction shown in Figs. 9 and 10 shown nailedon the shoe.

Referring to the drawing, let A represent a rubber or other resilient heel and B a plate which is embedded in the heel, said plate being molded or vulcanizedtherein. One side of the plate facing the lower surface of the heel 1s provided with a roughened Surface C made by intersecting scratches or grooves 2, in which the points of the nails 3 which are usedrforvattaching the heel to the shoe catch to prevent the points from being deflected from their course when the nails are being driven through the rubber heel and into the shoe. The scratches or grooves are close together and cover the entire surface of the plate or that zone or zones through which it is intended to drive the nails.`I The scratches or grooves alsov serve to weaken the plate, so that the nails will more readily perforate the plate when driven through the rubber heel and into the shoe. With this form of construction it is not necessary to have previously formed holes in the `rubber to register with holes in the plate, but the nail or nails may be driven in anywhere in the portion covered bythe' plate, and it will be sure of entering the plate without deflection or bending. When desired, the plate may be formed with openings 4 of any suitable shape or location, through which the rubber .constituting the heel passes to more securely hold the plate embedded in the heel. A certain porrubber heel indicated by 5 may be roughened or otherwise marked over the plate, so as to act as a spotting means for ositloning the nails to be driven through tige plate and through the heel. In driving the nails through the plate, a bur 6 is formed, which acts as a reinforcement to assist in preventing theplate from buckling, and also to secure the nails, rubber heel and plate in place and together.

11 convex.

In Fig. 4, a plate 7 is illustrated having a smooth surface and a nail with its point deflected and bent when being driven through the heel. This objection is entirely overcome by my invention. The roughened and reinforcing surface of the plate may be formed by a mass of small indentations 8 as illustrated in Figs. 5 and 6 when desired, but it will be noted that these indentations or detents do not perforate the plate, but most eectively reinforce its surface against bending or buckling. The plate may be additionally reinforced by forming flanges 9 (see Fig. 7) around all of its edges. In gigi 8 the plate B is shown applied to a full In the construction illustrated in Figs. 9 to 11 inclusive, the plate member is of a different design,.illustrating one of many Ways in which the invention can be modified. The inner surface 10 of the resilient body is concave and the outermost or lower surface When the heel is nailed onto the shoe, as illustrated in Fig. 11, the heel isidrawn tightly against the lower flat surface of the'heel portion by the plate and nails, the plate also being dishe'd as shown to most effectively draw and hold the heel firmly against the flat lower surface of the shoe. A closer fitting joint is thus provided continuously aroundv the edge vof the heel and against the shoe, thus obviating the use of cement.

In accordance lwith the patent statutes, I'

have described the principles of operation of my invention, together with the apparatus which I now consider to represent the u best embodiment thereof, but I desire to have it understood that the construction shown is only illustrative, and that the inventio-n can be carried out by other means land applied to uses other than thoseY above set forth within the scope of the following claims. 4

Having described my invention, what I claim as new and desire to protect by Letters Patent is y 1. A cushion heel providedl with an easily penetrable substantially continuous plate embedded therein formed with detents in its lower surface for engaging and guiding points of nails driven through said heel and plate and into a shoe.

2. A cushion heel provided with an unbroken penetrable plate embedded therein fdrmed with arough surface facing the lower surface of the heel, for the purposes specified.

A cushion heel provided with a penetrable continuous plate embedded therein formed with a large'number of nail point engaging detents.

4. A cushion heel provided with a penef, trable continuous plate embedded therein formed with a.rough surface weakened'ata llarge number of points by a corresponding number of detents.

5. A cushion heel provided with a penetrable continuous surface detented te engage and prevent the points of nails deflecting or bending from their direct course through the heel and plate, said plate being reinforced to prevent buckling; v

6. A cushion heel provided with a pene-- trable plate embedded therein and formed with a plurality of intersecting grooves'on one of its faces for engaging and, positively guiding the points of nails driven throughsaid heel and plate and into the shoe.Y

7. As a new article of manufacture, a cushion heel provided with an imperforate metallic plate embedded therein, said plate being penetrable by the fastening means employed to unyieldingly secure the heel on a shoe.

In testimony whereof, I have signed my name to this specification.

FRANCIS A. NOLAN.

Images