US50709A - Henby hobsfall - Google Patents

Description

H. HORSFALL.

Annuncator.

No. 50,709. i Patented Oct. 31, 1865.

www my W/M calities or rooms by means of wires.

UNITED STATES PATENT OFFICE.

HENRY HoEsEALL, oF NEW YonK, N. Y.

ANNUNCIATOR.

Specification forming part ot' Letters Patent No. 50,709, dated October 31, 1865.

with a portion of the face and the bell removed to show the mechanism. Fig.2is an inverted sectional plan at the line x x, and Fig. 3 is an,

elevation of part ofthe striking mechanism.

Similar marks ot' reference denote the same parts.

Annunciators and signal-bells have heretofore been made in which several wires leading from different localities have been made to operate mechanism for striking one bell, and at the same time indicate which particular wire was pulled by exposing the number or other corresponding designation, and in other instances a pendulum has been iitted so as to swing near the number or other designation of the particular wire that is pulled.

The nature of my said invention consists in a crank-arm attached at the center ot' the lever acted upon by the wire, said crank-arm carrying a pendulum in front ofthe face of the annunciator and by its vibration denoting the wire acted upon. I also construct the mechanism acting upon the bell in a peculiar manner, so as to render the same compact and not liable to get out of order.

In the drawings, a represents the case of the instrument, which may be of any desired character or size, and contain appliances for communicating with any desired number of lo- I have shown three.

b b are the wires in the instrument to which the aforesaid wires are connected.

c c are levers on fulcra cl el, receiving at one l end the wires b b, and at the other end the wires e e, that are attached to the respective slides f f. These slidcsfj'pass through a guide bar or plate, g, and each has a toe, l, and spring h. The toel acts upon a roller or crankpin, 3, of the rock-shaft t', said rock-shaft being sustained in bearings 4 4, and having a crank-arm, 5, at its end, with a link, 6, to the slide 7c, that is provided with a spring-dog, 7, taking the toe Z of the hammer L', said hammer being set on the fulcrum 8 and striking against the bell m, (shown also blue lines in Fig. l.) 9 is a spring acting on the slide 7c to return it to place after the pull on the wire b has been released. The dog 7 is pressed down as it passes back below the hammer-toe and springs up again after it clears said toe.

The rock-shaft t is to be extended in length to allowr for the reception of any desired number of slides f, according to the number of wires required, and it will be evident that the spring 9 acts in aid of the springs h t to insure the return of the slides ff to their proper position after the slide or slides have been acted on, and there is no chance of the slides becoming disconnected from and not operative on the rock-shaft.

Upon each of the levers c c, at their fulcra d, I attach a small pillar or stud, o, by screwing the same on, as seen in Fig. 2, or in any other convenient manner, and on this stud 0 is an arm,p, from which hangs apendulum, q, in front of the face r, upon which is marked the number or other designation of the wire connected with the particular lever c. It will now be seen that the pendulum by its vibration Will indicate the Wire pulled and the bell call the attention of the attendant. The apparatus is compact, and a large number of wires can unite in a small instrument, and each one indicate separately, and the appearance of the instrument is neat, the works being covered by the face.

My improvement obviates the difficulty experienced in most annunciators, viz., that they require attention to replace the numbers or the covers for those numbers, or else it can not be told which wire is pulled where more than-one wire is pulled before said numbers are covered.

What I claim,- and desire to secure by Letters Patent, is-

1. The stud or pillar aflixed to the lever c and projecting through the face, in combination with the pendulum that hangs in front of said face, for the purposes and as specified.

2. The arm 5 at the end of the rock-shaft "i,

In Witness whereof I have hereunto seb my signature this 4th day of October, A. D. 1865.

HENRY HORSFALL.

Vitnesses:

, LEMUEL W. SERRELL,

GHAs. H. SMITH.

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