US111672A

US111672A - Improvement in clock-pendulum rods

Info

Publication number: US111672A
Authority: US
Publication date: 1871-02-07
Anticipated expiration: 1888-02-07

Description

R. W. NORTON.

Clock Pendulum.

No. 111,672. Patented Feb. 7, 1871.

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ll. PETERS. FNOTO-LITHOUAPHER. WASHINGTON. D C.

new sale RUSSELL W, NORTON, OF NEW- HAVEN, CONNECTICUT.

Letters Patent No. 111,672, dated February 7, 1871.

IMPROVEMENT IN CLOCK-PENDULUM RODS.

The Schedule referred to in these Letters Patent and making part of the same.

panyin'g drawings and the letters of reference marked.

thereon to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and represent in- Figure l a sideview;

Figure 2, a sectional ,or edge view. of my improvement;

Figure 3, a side view of the old method,

Figures 4 and 5, the construction of thesame;

Figures 6, 7, and 8, modifications of myinvention.

All the views are enlarged.

This invention relates to an improvement in the construction of the upper end of pendulum-rods, the object being an improvement in the device. by which the upper end of the pendulum is secured in its hearing.

Heretofore this has been done, as seen in figs. 3, 4, and 5:

Near the upper end of the flat portion of the rod is a perforation, a, through which a piece of wire, (Z, is placed and bent up each side, as denoted in broken lines, fig. 5, and as seen in fig. 3.

This process necessitates considerable hand-labor, and in small rods the bending of the wire often breaks or tears out the end of the rod.

.By my invention the operation is very much simplified, and no liability to breaking the rod and Itconsists in indenting the flattened portion of the rod, near the upper end, so as to form practically an enlargement or hearing for the support of the rod.

A is the flattened portion of the rod B, formed in the usual manner. The flattened portion is thep placed between suitable dies, which being struck together indent or bend the rod, as seen atf, fig. 2.

This bond is placed immediately over the support to which the rod is hung, and sustains the rod in position.

In addition to its simplicity, this construction-is a great advantageovcr the old, inasmuch that if the perforation a be not in the center of the rod it will not hang. in a perpendicular position, hanging out or in accordingly as the perforation is to one side or the other; whereas, by my improvement, the indentation is made square across the flat portion of the rod, so that a perpendicular pendulum is insured.

I have represented the construction as an indentation, yet it may be simply a groove formed entirely across the rod, as seen in ii". 6, by bending into the form seen in fig. 2, or two indentations maybe made, as seen in fig. 7 so as to retain the rod in a perpendicular position;

Further, a single indentation, as in fig. 8, may be made, which will be open only to the single diificulty of hanging in a perpendicular position, as explained by the perforation in the old plan. I prefer, however, the groove or indentation across the rod, as it overcomes evcryditficulty, and is made at a comparatively trifling expense.

I do not wish to be understood as broadly claiming the construction of the rod so that it may be suspended without the addition of parts or pieces tothe rod.

1 claim as my invention- The pendulum-rod, constructed with an indenta-- tion near the upper end of the flattened portion, substantially in the manner and for the purpo'seset fort-h.

R. \V. NOR-TON.

\Vitnesses:

A. J. 'lnnnrs, J. H SHU'MWAY.