US45836A - Securing the necks to door-knobs - Google Patents

Description

UNITED STATES PATnNT THOMAS KENNEDY, OF BRANFORD, CONNECTICUT.

v. SECURING THE NECKS TO DOOPrKNOBS.

Specication forming part of Letters Patent No. L155,836. dated January 10, 1865'.

To LZZ whom it may concern: Y

Be it known that LTHOMAs KENNEDY, of Branford, in the county of New Haven and State ci" Connecticut, have invented a new and useful Improvement in Securing the Neck to Knobs; and I do hereby declare the following to be a full, clear, and exact description of the same when taken in connection with the accompanying drawings and the letters ot reference marked thereon, and which said drawings constitute part of this specification, a'td represent, in-

Figure 1, a side view of a knob and neck complete; Fig. 2, a central section of thesame;

and Figs. 3 and et illustrate the construction,

of the two parts.

The principal objection to the use of mineral knobs is their liability to become loose upon or entirely detached from their neck, which diliculty arises from the manner of securing the knob to the neck, which has heretofore been done by means of cement, lead, or similar substance around the neck in the cavity of the knob, depending entirely upon the strength of such cement, 85e., holding in indentation made both in the neck and cavity ot' the knob. My invention is designed to overcome this serious objection.

And to enable others skilled in the art to make my improvein ent, I will proceed to fully describe the same, as illustratedin the accompanyin g drawings.

A is the knob. B the neck, which externally, as seen in Fig. I, are similar to ordinary knobs. I form the lower or inner part of the neck with one or more projecting ears a a, or their equivalents. (See Figs. 2 and 3.) Vithin the knob, at the proper distance from the outside, I form a channel, c, and cut as many grooves d from the outside down to the said channel as there are ears a on the neck; then iill or partially till the cavity in the knob with cement or any substance answering the same purpose.; then set the ears of the neck into the grooves d, and press down into the channel c, as seen in Fig. 2, turn the neck partially around so that the ears shall set underthe solid part ot the knob, as in Fig. 2, and then leave the neck until the cement has become hard. Th en the neck and knob cannot be separated without breaking' the knob.

My invention, though designed more particularly for door-knobs, is equally applicable to securing al] knobs which are first formed independent of the neck. Therefore,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

Securing the neck to knobs, substantially as and for the purpose herein set forth.

THOMAS KENNEDY.

Witnesses:

JOHN E. EARLE, RUrUs SANronn.

Images