Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS561881 A
Publication typeGrant
Publication dateJun 9, 1896
Filing dateMar 18, 1895
Publication numberUS 561881 A, US 561881A, US-A-561881, US561881 A, US561881A
InventorsJames H. Gerry
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 561881 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

-(No Model.) 5 Sh eets sheet 1.



No. 561,881. Patented June 9, 1896.

wnea aa" (No Model.) 5 Sheets-Sheet 2 J. H. GERRY & P. M. SCHMIDT. ELECTRIC GHIME.

Patented June 9, 1896.

1 MIWHHPW- (No Model.) 5 Sheets-Sheet 3.



No. 561,881. Patented June 9, 1896.

123r5678 910fl12131 r15 ANDREW B GRAHAMPflUW-UTHO WASHINGI'UH.DC

(No Model.) 5 Sheets-Sheet 4.


No. 561,881. Patented June 9, 1896.

(No Model.) '5 Sheets-Shget 5.


No. 561,881 Patented June 9, 1896,




SPECIFICATION forming part of Letters Patent No. 561,881, dated June 9, 1896.

Application filed March 18,

To all whom it may concern:

Be it known that we, JAMES H. GERRY and FEEDERIOK M. SOHMIDT,citizens of the United States, residing at Brooklyn, county of Kings, and State of New York, have invented a new and useful Improvement in Electric Chimes, of which the following is a specification.

Our invention relates to the ringing of chimes electrically under control of a clock if the chimes are to be rung periodically or of akeyboard if they are to be sounded at will.

Our invention consists specifically in certain combinations of devices and circuits which we will first fully describe with reference to the accompanying drawings, then pointing out in the claims the novel parts.

In said drawings, Figure I is a general diagrammatic view of the system. Fig. II is a front elevation of the mechanism for operatin g the music-strip for use when it is desired to sound a prearranged series of notes. Fig. III is a sectional elevation of the upper part thereof to:a much larger scale. Fig. IV is a front elevation of the upper part thereof to the same scale as Fig. III. Fig. V is an elevation of the chimes and allied parts. Fig. VI is a detail view of a contact-lever and its support.

The chimes may either be rung automatically at predetermined intervals under control of a clock A or at will by operating a keyboard 13.

C is the conductor of a local circuit including a batteryD and the magnets of a relay E.

The clock A has usual circuit-closing devices, which we have not thought it important to show, as they maybe of anypreferred kind, for closing the local circuit momentarily at predetermined intervals. The circuit once closed current flow is maintained by means of the circuit-closer F G, in the manner hereinafter explained. Current is supplied over conductor II from a suitable source of electricity (not shown) through resistance I to a motor J and a branch K of the same circuit is led through a lower resistance L, then in multiple are through the magnets of relays M, numbered 1 to 15, and the correspondinglynumbered series of contact-makers N. A

line conductor 0, which includes a suitable source of electricity (not shown) has in mul- 1895. Serial No. 542,228. on; model.)

tiple are a number of branches I, each of which passes through the contacts of one of the relays M and around the coil of a corresponding solenoid Q. Each solenoid has a movable core R. The solenoids are (see Fig. V) arranged in double row at the base of a frame S, in which are supported two rows of tubular chimes T. In Fig. V only the end chimes of the two rows appear, the frame being seen end on. The board U, carrying the several relays M, may also be supported on frame S, as shown.

V are the hammers pivoted on suitable supports on frame S and connected by rods IV or otherwise with rockers X, each of which is connected by cord, cable, or otherwise to one of the solenoid-cores R.

The music sheet or band Y is carried (see Fig. II) on a number of supporting, guiding, and balancing rollers Z. The sheet is perforated, as shown in Fig. III, the perforations or slots a being so proportioned and arranged as to coact with the contact-makers Nin sending to line a series of impulses corresponding to the tune to be played.

At the end of each series of perforations or tune on the music strip or ribbon is arranged a boss or short rounded elevation I), which acts upon contact-maker F G to stop the mechanism at the end of a tune. The music-strip has regular perforations c at the edges to engage the sprocket-teeth of a feedwheel d, which is driven by train of gears c from motor J. The music-sheet is (see Fig. IV) guided to and from the feed-wheel (Z by flanged rollers f g h, the first of which may, as shown, be mounted upon the bracket 1', which carries the levers j of contact-makers N and F G, and serve, therefore, to guide the sheet in passing said contact-makers. The contacts N consist of a series of movable 0r lever contacts j, pivoted opposite a series of fixed contacts 71;. The levers are mounted on a common pivot-rod I, mounted in bracket m, to which is connected one part of conductor K. Above their pivot Z the levers j have arms 11, which are caused to bear upon the musicsheet Y by springs o, fixed at one end to levers j and at the other to a fixed support.

The contact-points of levers j are remote from the points of contact of arms 12 with the music-ribbon in order to get the spark of making and breaking the circuit away from the sheet, and the music sheet or band Y must be out of or excluded from the electric circuits by making it of some non-conducting material, such as paper, parchment, cloth, &c., or by otherwise insulating or rendering neutral the end of lever j, contacting therewith to insure sending the electric impulses through the proper circuits.

The several fixed contacts 71", are insulated from each other in their support 19 and connected by independent wires q to a series of insulated posts 1', and thence by wires 5 to the magnets of the several relays M. Preferably the posts r are spiral springs, which afford good clamping-surfaces for flat terminal plates t of wires q, so that the latter may be readily put in place or removed.

The music-sheet is supported against the pressure of the arms 01- by a flat plate or table it, carried by bracket 2', and immediately opposite the ends of said arms at c the table to is slotted, so that when a slot to of the musicsheet passes under an arm at said arm, dropping through said slot a, will be allowed by slot v to move far enough to bring contacts N together and thus complete the circuit through the corresponding relay M. The levers j are hung on their pivot-shaft Zby slots 20 at their hubs and are held together by a finger-lever w, pivoted on the outer end of shaft 1. The leversj are held down on the shaft by a pin g, which rests just above their hubs, and is retained in its socket in the supporting-bracket m by a short arm as on finger-lever m. By lifting lever 00 from engagement with screw a its arm 50 releases pin y, so that the latter may be removed and any one or all of the contact-levers j may be re moved at will.

At 1) we provide a metal plate having a socket 0 adapted to receive apin. Bypressing back the levers and inserting a pin in said socket the levers may all be held back from possibility of contact with contacts 70.

It will be seen in Fig. I that a branch circuit d, including contacts F G, is arranged to short-circuit the clock A. The contacts F G are mounted on bracket 2' and insulated therefrom and from each other. The con tact F is pivoted to its support and provided with weight e, and the contact G is rigid. Normally during the operation of the mechanism the contact F rests on contact G, closing the circuit; but when at the end of the performance of a musical selection the boss 1) passes under the contact F the latter is raised from contact G, the circuit broken, and the mechanism ceases to operate.

The operation is as follows: The closing of circuit C by clock A (the contacts F being separated) causes the closing of circuit H at relay E, and the motor J is thus started and starts the music-sheet in movement. The

closing of circuit by the clock is but momentary, but long enough to cause the movement of the music-sheet to carry the boss Z7, which is at the moment under contact F, away from such contact, allowing the latter to drop and short-circuit the clock, insuring the maintenance of the circuit until the musical selection is completed. The music-sheet is thus drawn continuously past the arms n of contact-levers j, causing the latter to close the circuits (1 at N, and thus operate the relays m, so as to actuate successively the proper solenoid-cores R to produce the music desired. When the selection is completed, the boss Z) lifts contact F and breaks the circuit d O, and consequently also the circuit H, thus stopping the motor J and arresting the movement of the music-sheet while the contact F is still held up by boss b.

If it is desired to ring the chimes at other than the prearranged times or to perform other selections than those provided for on the music sheet or ribbon, the keyboard Bis provided and is so arranged that each key closes one of the circuits into one of the conductors q in manner similar to the automatically-operated contact-closers N.

Having thus described our invention, the following is what we claim and desire to secure by Letters Patent:

1. In electric chimes the combination of the set of chimes and hammers therefor, the solenoids and their cores corresponding to the several hammers, the several relays having their contacts in circuit each in series with one of said solenoids and in multiple arc with the remainder, and its magnets in series with one of a set of circuit-closing devices and means for operating said circuit-closing devices substantially as set forth.

2. In electric chimes, the combination of a set of chimes T,"their hammers V, solenoidcores R, electric circuit 0 including solenoids Q in multiple arc and the contacts of relays M, the electric circuit K, g including the magnets of said relays in multiple arc and their corresponding contact-makers N, and means for operating said contacts substantially as set forth.

3. In electric chimes the combination of a local circuit C including a source of electricity, arelay-magnet and a clock-operated cir-- havin arm as all arran ed and ada )ted to o 3-.

crate substantially as set forth.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5266732 *Aug 7, 1992Nov 30, 1993Kabushiki Kaisha Bell MusicAutomatic performance device for sounding percussion instruments
Cooperative ClassificationG10F1/10