US550462A - Nathan pi - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

N. H. SUREN. REGISTER FOR FIRE ALARM SYSTEMS.

Patented Nov;- 26, 1895.

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. N. H. SUREN. REGISTER FOR FIRE ALARM SYSTEMS.

N0J55O,4-62. Patented Nov. 26; 189 5,-

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ANDREW B.ORAHAM PHOI'O-LITI10.WASIHNGTON.D

UNITED STAT S PATENT OFFICE.

NATHAN H. SUREN, OF NEW YORK, N. Y.

REGISTER FOR FIRE-ALARM SYSTEMS.

SPECIFICATION forming part of Letters Patent No. 550,462, dated November 26, 1895. Application filed January 29, 1895. Serial No. 536,541. (No model.)

To all whom it may concern.-

Be it known that I, NATHAN H. SUREN, a citizen of the United States, residing at New York city, in the county and State of New York, have invented a certain new and useful Improvement in Registers for Fire-Alarm and Similar Telegraph Systems, of which the following is a specification.

The object I have in view is to produce a telegraph register especially adapted for the recording of fire-alarm signals by means of dashes, in which the dashes will have a predetermined and uniform length, irrespective of the duration of the makes and breaks at the signal-transmitter, which, in the registers heretofore employed in practical work, have determined the length of such dashes.

In carrying out my invention I employ the usual form of register, provided with a springdriven clock train, which is stopped and started by an electromagnet and is provided with a tape-feeding device operated by the clock-train, and also with a line-marking device consisting of a marking-wheel and an inking-roller constantly in contact with it, and also provided with a movable tape-guide or platen, over which the tape passes and by the movement of which platen the tape is pressed in contact with the line marking wheel, which marks a line upon the tape whose length is dependent upon the speed of the tape and the duration of the contact. Of course a register in which the line-marker is moved and the platen or tape-guide is stationary would be an equivalent arrangement.

Heretofore the movable platen has been connected in practice with the armature of the register-magnet, so as to be moved thereby, and the duration of contact between the tape and the marking-Wheel has been dependent upon the length of the makes or breaks at the transmitter controlling the register-magnet. In carrying out my invention I disconnect the movable platen from the magnet-armature and operate it from the tape-feeding clock-train by means of a device which is thrown into connection with that clock train by the movement of the magnet-armature and automatically disconnects itself from the clock-train after a definite period of movement. This result may be accomplished in various ways, as, for instance, by means of a mutilated pinion, whose revolution moves the platen, which mutilated pinion stands normally out of gear with a toothed wheel on the clock-train and is thrown into gear with that wheel by the movement of the magnet-armature, when it is turned one revolution, until its mutilated portion is again brought opposite the toothed wheel on the clock-train, when it disengages itself from that wheel, or a device similar to the creeper movement for starting and stopping the register may be employed, the magnet armature holding the creeper down against the screw-shaft of the clock-train and'lifting the platen by the same movement, the platen being maintained in its elevated position until the creeper, by its lateral movement, passes out from under the end of the armature-lever, when it will be drawn back and the platen lowered by a spring.

In the accompanying drawings, forming part hereof, Figure 1 is a plan view of a register embodying my invention, the tapewheel and inking-roller being omitted. Fig. 2 is a side elevation, the tape-wheel being omitted. Figs. 3, 3, 4, and 5 are detail views, and Figs. 6 and 7 are views illustrating a modification.

The register A is of usual construction, provided with a suitable base, upon which are mounted the side plates 1) b, in which are journaled the shafts of the spring-driven clock-train. The tape-feeding wheel driven by the clock-train is carried by the end of a shaft projecting through the side plate Z), as shown, and the paper tape cl passes from the usual tape-wheel (not shown) over the tapeguide or platen e and between the tape-feed ing wheel and pressure-roller in the usual The register-magnet B is provided with the usual armature B and related parts f, f, f f f and 19 The means for stopping and starting the register is the usual creeper movement, consisting of the screw-shaft a on the clock-train, the-arm c, and related parts i i i i i la it h h h h The line-marking device of the register is composed of a wheel 0,- mounted on the end of the shaft a of the clock-train and moving therewith, upon which wheel rests the inkingroller 0, carried by a pivotedarm c and covered by a cap 0 The register-train being started and the tape-guide or platen 6 being thrown upwardly, so as to bring the tape into contact with the marking-wheel, it willbe seen that a line will be marked on the tape whose length will be dependent upon the speed of the tape and the duration of the contact between the tape and the marking-wheel.

pivoted at c and moved in a direction to carry the tape awayfrom the marking-wheeli The block 6 has an arm 6 train, having a proper relative speed for the Upon the shaft 6 is a ratchetpurpose. wheel e with which engages a pawl a, carried by an arm e mounted upon the pivot f of the magnet-armature B. The pawl e is drawn inwardly by spring 6 and is provided with an extension 6 beyond its tooth. The pinion a is mutilated, in the sense thatit has one tooth removed, and normallyit stands with this mutilated portion opposite the toothed wheel e so that the rotation of The retracted, movement of the armature B, however, ro-:

the latter does not aifect it.

tates the pinion throughthe pawl and ratchet sufficiently to engage the pinion with the? toothed wheel, when the pinion will be rotated until its mutilated portion again comes opposite the toothed wheel, when it will automatically disengage itself from the toothed wheel and will come to rest and remain so until the magnet-armature is again retracted.

here the register is designed to operate on a normally-open circuit, the arrangement shown in Fig. 3 will be employed, in which figure the pawl engages the other side of the ratchet and moves it when the armatureis attracted. The rotation of the mutilated pinion causes the cam e to make one movement of rotation, thus lifting the tape-guide or platen and holding it lifted for a definite period.

In the modification shown in Figs. 6 and 7,

a creeper movement is employed to accomplish the same result. In this construction, the pivoted block 6, carrying the platen, has a pin 9 engaging a pin 9" on a collar can ried by a shaft 9 Upon this shaft is an arm 9 to which is pivoted a swinging lever g thrown in one direction by a spring 9 and having a tooth g, adapted to engage with the screw-shaft a. An arm 9 from the armature lever, is provided with a screw 9 bearing on the end of the swinging lever g The tape-guide or platen e is secured to a block e,

When the armature lever is retracted, it forces down the lever g turning the shaft g and throwing upwardly the platen. At the same time the tooth g is brought into engagement with the screw-shaft a, and the lever g is moved laterally by that shaft until it is disengaged from the screw y", when the lever g snaps back past the end of the screw g and the platen is lowered, this movement being produced by the spring a When the armature isagain attracted, the screw-point g is lifted and the lever g springs laterally under it, bringing it into position to be again depressed by the retracted movement of the armature.

What I claim is 1. In a telegraph register, the combination with the tape-feeding train and the register magnet, of a line-marker whose movable element is connected with and operated conjointly by saidtrain and the magnet armature, whereby dashes of a uniform and predetermined length are marked on the tape,

substantially as set forth.

2. In a telegraph register, the combination with the tape-feeding train and the register magnet, of a line-marker provided with a movable platen over which the tape passes, and a connection between said platen and both the tape-feeding train and the magnet armature, whereby the platenis operated by the conjoint action of said train and armature and dashes of a uniform and predeter mined length are marked 011 the tape, sub- .stantially as set forth.

3. In a telegraph registerythe combination withthe tape-feedingtrain and the register magnet, of a line-marker, consisting of a marking wheel rotated by the feed-train, an inking roller in constant contact with the marking wheel, and a movable platen over which the tape passes, said platen being connected with the feed train and with the magnet armature and operated conj ointly by said train and armature to produce dashes of a uniform and predetermined length upon the tape, substantiallyas set forth.

4:. In a telegraph-register, the combination with the tape-feeding train and the register magnet, of a line-marker, means for moving the movable element of the line -marker through connection with the tape -'feeding train, and means operated by the magnet ar mature for connecting the line-marker with the feed-train, substantially as set forth.

IIO

6. In a telegraph register, the combination with the tape-feeding train and the register magnet, of a line-marker having a movable platen, a cam moving said platen, a mutilated pinion moving the cam when brought into connection with a wheel on the feed train, and a pawl and ratchet operated by the magnet armature for throwing the mutilated pinion into engagement with said whee1,substantially as set forth.

This specification signed and witnessed this 25th day of J annary, 1895.

NATHAN H. SUREN. WVitnesses:

W. PELZER, EUGENE OoNRAN.

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