US234926A - Btjssell b - Google Patents

Description

` (No Model.)

. R. B. PERKINS.

Lantern.

No. 234,926. Patented Nov. 30,1880.

ffzfemses. mi/6 /a UNITED STATES RUSSELL B. PERKINS, OF MERIDEN, CONNECTICUT, ASSIGNOR TO EDWARD MILLER 8v CO., OF SAME PLACE.

LANTERN.

SPECIFICATION forming part of Letters Patent No. 234,926, dated November 30, 1880.

Application led October 11, 1880.

To all whom it may concern Be it known that I, RUssELL B. PERKiNs, of Meriden, in the county of New Haven and State of Connecticut, have invented new Improvements in Lanterns, and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters ot' reference marked thereon, to be a full, clear, and exact description of the same, and

1o which said drawings constitute part of this specification, and represent, in

Figure 1,a side view, Fig. 2, vertical section.

This invention relates to an improvement in that class ot' lanterns in which the globe is i5 removable and held in place by an adjustable ring at the top which sets down onto the neck of the globe.

In the usual construction the ring has a partial rotation, which, combined with cams,

2o gives a vertical movement to the ring, to force it onto the globe when turned in one direction, or raise it therefrom when turned in the opposite direction; but this construction makes a hard, rigid, nnyielding bearing upon the globe, which frequently causes the globe to break from the great expansion produced by heat from the tlame within.

The object of this invention is principallyY to overcome this difficulty; and it consists in 3o the construction hereinafter described, and

particularly recited in the claim.

As here represented the invention is applied to what are known as tubular lanterns ;77 but the tubes are not essential to the invention.

A is a stationary ring, here represented as supported by the tubes B B at the side. Within this ring A is a concentricring, C, movable up and down in the ring A as a guide. At

4o some convenient point a spring, l), is applied, attached to the stationary ring` A or other stationary part of the lantern, and so as to bear with its free end on the movable ring O, and so that lifting upon the ring` C will move D it upward, compressing the said spring D, as in Fig. 2, or left free. The spring will force the ring downward, as in Fig. l, so that if, when the ring is lifted, as seen in Fig 2, the globe be introduced to its position, and the 5o ring permitted to fall, as in Fig. l, it will engage the neck of the globe E, and by the pressure of the spring D hold it in its Xed position. The spring readily yielding to any (No model.)

expansion or contract-ion of the globe, overcomes the difficulty existing in the use of the cams in connection with the xed and unmovable rings.

It is generally desirable to mechanically hold the ring C in its raised position when the globe is removed. To this end a stud, a, 6o 1s introduced in one ot' the rings, and an L- shaped slot, d, made in the other part, here represented as the stud on the stationary' part, and the slot in the movable part, both shown in broken lines, and as upon the inside ot' the 65 ring A; but the order may be reversed. Hence in raising the ring C the vertical part ot' the slot d passes over the studv until raised to its full height, (see Fig. then turned to bring the horizontal partl of the slot onto the stud, 7o. will hold the ring C in its raised position, then. returning the ring C to bring the stud into line with the vertical position of the slot, the spring will throw the ring downward.

If, as here represented, the end ot' the spring 75 D be turned inward into an opening, c, in the ring C, it will be necessary to elongate the slot in order to permit the ring C to be turned.

While preferring to attach the spring permanently to a tixed part ot` the lantern and 8o the free or moving end to engage the movable ring C this order may be reversed, and the spring rigidly attached to the ring C, its free end bearing on a fixed part of the lantern.

Other kinds of' springs may be substituted 85 for the spring shown, but this is believed to be the best arrangement.

I do not broadly claim a.vertically-movable ring arranged to set upon the neck of the globe either with or without springs to force 9o it downward.

I claim- The combination, in a lantern, ot' a ring at the top movable up and down to engage or release the neck ofthe globe with a tixed support or guide for said ring, and a spring acting upon said ring t0 force it down upon the neck ot' the globe with an I -shapedslot on the one part and a stud on the other part working in said slot to hold the said ring in too its raised position, substantially as described.

RUSSELL B. PERKINS.

Vitnesses:

BENJ. C. KENNARD, FREDK. S. WILLIAMS.

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