US482984A - piper - Google Patents

Description

E. S. PIPER.

(No Model.)

BELL.

Patented Sept. 20, 1892/'.

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Ntra@ STATES PATENT erica.

EDWIN S. PIPER, OF BRISTOL, CONNECTICUT, ASSIGNOR OF ONE-HALF TO FRANK CLAYTON, OF SAME PLACE. i

BELL.

SPECIFICATION forming part of Letters Patent No. l1582,984, dated September 20, 1892.

Application tiled May 9. 1892. Serial No. 432,324. (No model.)

T0 a/ZZ whom it may concern:

Be it known that I, EDWIN S. PIPER, of Bristol, in the county of Hartford and State of Connecticut, have invented a new `Improvementin Bells; and I do hereby declare the following, when taken in connection with accompanying drawingsand theletters of reference marked thereou,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 view in vertical section,on the line ct b of Fig. 2, of a call-bell constructed in accordance with my invention; Fig.2,a plan view of the bell with the bell properfremoved and the upper movement-plate being broken away; Fig. 3, a broken view showing the pushtube at the limit of its inward or push movement; Fig. 4, a view, partly in vertical section and partly in elevation, of a door-bell embodying my invention. Y,

My inventionrelates to an improvement in door and call bells, and particularly to mechanism for operating their hammers, the object being to producea simple, durable, convenient, effective, and ornamental bell at a low cost of manufacture.

With these ends in view my invention consists in the combination, with a push-tube having its inner end constructed with one or more spiral slots, of an escapement-'shaft having one end entered into the said slotted end of the tube and furnished with a transverse pin which enters the slot or slots therein, a spring for recovering the tube after it is pressed inward, a bell and bell-hammer, connections between the said shaft and hammer, whereby the latter is actuated by the rotary movement imparted to the former by the inward movement of the push-tube, which is held against rotation while it is pushed inward, and means for supporting and guiding the said parts.

My invention further consists incertain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

As shown in Figs. l, 2, and 3 of the drawings, the bell is constructed with a push-tube A, having its outer end furnished with a cap A', forming a finger-piece and having its outer face concaved and sufficiently roughened so that when the finger is pressed against it it will be frictionally restrained from rotation while it is being pushed inward. This cap may of course take some different forms, and I do not limit myself to any particular way of making it, so long as the result above mentioned is secured. It might be formed integral with the tube,which, however, it will probably be more convenient to make as shown. The inner end of the tube is constructed with two coarsely-pitched slots A2 A2, each extending about half-way around it and located eX- actly opposite each other, so as to receive the respective ends ot' a pin B, which is transversely mounted in the inner end of an escapement-shaftO, which is entered into the said inner end of the tube. The outer end of the said shaft is journaledin the lower movement-plate D, which is connected, as herein shown, (see Fig. 2,) by three pillars D with the upper movement-plate D2, which has attached to it a hollow post E, externally-threaded at its upper end for the attachment of the bell F, which may be of any-suitable construction. The shaft C has mounted upon it a heavy escapement-wheel G, which is engaged by the pallets of an anchor-verge H, secured to an arbor I, having its opposite ends journaled in the said plates and projecting at its upper end through the upper plate D2 for the attachment of the tail J of the hammer J', which is vibrated in a horizontal plane for striking the bell. A spiral spring K, interposed between the cap A of the tube and the inner end of the escapement-shaft C, is provided for recovering the tube or pushing it back into its normal position after it is relieved of pressure upon its cap. At this time, the`friction and inertia of the tube being less than the friction and inertia of the shaft, wheel, pallet-arbol', and hammer, the tube rotates while the other parts remain at rest. The tube plays back and forth in the hollow post E, which, as before described, is secured to the movement` plate D2. The said mechanism is for the most part within the hollow base or standard L, which may be of any approved construction.

I do not limit myself tothe particular construction and arrangement of parts shown and described, my invention comprehending, broadly, the use of a spring-recovered pushtube held against rotation while being pushed IOO inward by manual engagement with its outer end and having its inner end spirally slotted to receive a pin mounted in ashaft of a train arranged to actuate a bell-hammer.

-I need only say, respecting the operation of the bell, that to ring it a finger is pushed Aagainst the cap of the push-tube in such a manner as to develop sufficient friction betweenvthe finger and cap to prevent the tube from rotation while it is being pressed inward. As the tube is pushed inward the walls of the slots in its inner end will coact with the pin in the escapement-shaft, so as to overcome the inertia of the same and its connections and actuate them in ringing the bell. If the push-tube should rotate under the finger to some extent, it would still operate the train, but with less eect, according to the amount of such rotation. So soon as the push-tube has been pressed inward to the limit of its inward movement the finger is naturally removed from it, whereupon its spring will shoot it back to its normal position of readiness to be pushed inward, and as the inertia of the tube when not held against rotation by the finger is less than the inertia of the train the tube will be rotated instead of the escapement-shaft under the power of the spring which is provided to recover the tube.

As shown by Fig. 4 of the drawings, my invention is applied to the construction of a door-bell. In this case the tube M is made of sufficient length to pass through a door or casing, its outer end being partially inclosed in a circular plate N, having a central depression and corresponding in general appearance to the housing of an electric push-button. The inner end ol" the tube is constructed with slots M M', as before described, to receive the opposite ends of a pin O, mounted in an escapement-shaft P, having its inner end entered into the tube and its outer end journaled in the outer movement-plate Q, which is connected by pillars R R to a circular plate S, adapted to be secured to the opposite side of the door or casing T. The said shaft isfurnished with an escapeInent-wheel P which is engaged by the opposite pallets of a verge U, mounted on an arbor U', to which is attached the tail V of a bell-hammer V', which strikes the bell W, secured to a threaded post W', attached to the movement-plate Q. Inasmuch as this bell operates in the same way as the bell already described, it is thought unnecessary to refer to it more at length than has been done. The same principle of construction might also be applied to making a bicycle-bell.

I have shown and described the inner end of the tube as provided with two spiral slots and a pin arranged to enter both of them; but one slot would do, although the device would not then work as freely. I would therefore have it understood that I do not limit myself to the exact construction herein shown and described, but hold myself at liberty to make such changes and alterations therein as fairly fall within the spirit and scope of my invention. I am aware, however, that it is old to make a bell with a push-rod containing a spiral through which it actuates the bell-hammer train, and I do not therefore claim that construction broadly.

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

1. The combination, with a push-tube having its inner end constructed with one or more spiral slots and its outer end adapted for direct manual engagement, of an escapementshaft having one end entered into the said slotted end of the tube and furnished with a pin which enters the slot or slots therein, a spring interposed between the outer end of the tube and theinclosed end of the shaft for recoveringthe tubeafterithasbeen pressed inward, a bell and a bell-hammer, connections between the said shaft and ham mer,whereby the latter is actuated and rotary movement is imparted to the former by the inward movement of the tube, and means for supporting and guiding the said parts, substantially as described.

2. The combination, with a push-tube having its inner end constructed with one or more spiral slots and its outer end provided with a roughened cap forxninga finger-piece, of an escapement-shaft having one end entered into the said slotted end of the tube and furnished with a pin which enters the slot or slots therein, a spring interposed between the said cap and shaft for recovering the tube afteritis pressedinward, a bell and Vbell-hammer, connections between the said shaft and hammer, whereby the latter is actuated by the rotary movement imparted to the former by the push-tube, and means for supporting and guiding the said parts, substantially as described.

3. In avbell, the combination, with a pushtube having its outer end constructed with a cap forming a linger-piece and its inner end constructed with one or more spiral slots, of an escapement-shaft having one end entered. into the said slotted end of the tube and furnished with a pin which enters the slot or slots therein, aspringinterposed between the cap and shaft for recovering the tube after it has been pushed inward, an escapementwheel mounted on the shaft, a pallet engaging with the said wheel, an arbor for the said pallet, a hammer-tail mounted in the said arbor, a hammer attached to the said hammer-tail, a bell, and means for supporting and guiding the said parts, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

EDWIN S. PIPER.

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