US445799A - Half to moses g - Google Patents

Description

(N9 Model.) 2 Sheets--Sheet 1.

, 152W. COLE.

NON-INTERFERENCE SIGNAL BOX.

No. 445,799. Pate'nted Feb. 3, 1891.

Z Q ale,

(No Model.) 2 Sheets-Sheet 2.

- F. W. COLE.

NON-INTERFERENCE SIGNAL BOX. Nu l/15,799. Patented Feb. 3, 1891.

M wwg UNITED STATES PATENT OFFICE.

FREDERICK \V. COLE, OF N EWVTON, MASSACHUSETTS, SSIGNOR OF ONE- HALF TO MOSES G. CRANE, OF SAME PL OE.

NON-INTERFERENCE SIGNAL-BOX.

SPECIFICATION forming part of Letters Patent No. 445,799, dated ebruary 3, 1891.

Application filed May 29, 1890.

T ctZZ 1072,0122, it may concern:

Be it known that I, FREDERICK W. COLE, of Newton, county of Middlesex, State of Massachusetts, have invented an Improvement in Non-Interference Signal-Boxes, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object to consaidmagnet-as, for instance, decreasing its attractive power when the box-door is open. Thisinventionis herein represented as apphed to a normally-wound-up train. The

V locking-lever for the train is normally held ther moved to release the train.

in itslocking position by means of a spring, and the pull is made independent of the locking-lever and adapted to raise it against the tension of said spring, or to move it into suitable position to enable it to be again or fur- A box-controller is'p'rovided which is designed to cooperate with the said locking-lever to control theeifective transmission of the signal, said box-controller being governed by the armat'ure of said non-interference magnet.

Figure 1 shows in front elevation a signalbon embodying this invention; Fig. 2, ahori- Zontal section of, the box shown in Fig. 1, taken on the dotted line was; Fig. 3, a detail of the means shown in Fig. 1 for varying the power of the non-interference magnet; Fig. 4, a rear end view of the switch controlled by the box-door for varying the power of the non interference magnet; Fig. 5, a front view of the box, showing the door open; Figs. 6, 7, 8, 9, and 10, details of some of the parts shown in Fig. 1 to be referred to; Fig. 11, a detail of a modification to be referred to 5 Fig. 12, a detail of another modification to be referred to; Figs. 13 and 14, detalils of another modification to be referred td.

Referring to Figs. 1 to\10, the main framework a supports a signaling-train of any usual or suitable construction, it being herein rep resented as a normally-wound-up train comprising a drive-wheel a, engaging a pinion a? on a shaft (1 which carri s atoothed wheel a, which engages a pinion 5 on a shaft 0., which carries a toothed wheel 1, engaging a pinion a on a shaft a carryin the escapewheel 0. which co-operates with a allet a.

The signal-wheel b is herein repre ented as placed on the shaft 0..

Two pens 2' 3 are herein represented as hearing on the signal-wheel b, to which the line-wires lead.

The controlling-lever for the box is herein represented as a locking-lever c, secured to a rod or shaft 0, having a pivotal hearing at one end in the front plate and having a loose bearing in an elongated openingin the rear plate. (See Figs. 8 and 9.) A spring 0 is provided for holding the locking-lever c in its locking position.

The locking-lever c has on its front and lower side a projection 0 having an inclined face, and a projection c is secured to the rear side of the toothed wheel a which co-operates with the projection 0 acting to hold the said locking-lever in its locking position in connection with the spring 0 The outer end of the locking-lever c has on it a projection 0 which when in looking position engages a 'pin 0 on the escape-wheel a The pull, which is herein shown as made independent of the locking-lever and repre sented at d, is pivoted to the frame-work at d, the rear end of which passes beneath the locking-lever 0, so that by depressing said pull cl the locking-levercis raised against the tension of the spring 0 WVhen the pull (Z is depressed, the locking-lever c is lifted, so that the projection 0 passes above the upper surface of the projection 0 as represented by swerve it toward the wheel a as represented IOC by dotted line, Fig. 8, the locking-lever moving in its elongated bearin g, especially shown in Figs. 8 and 9. The pin 0 is made quite short, so that when the lever is thus swung in a horizontal plane the projection will pass by the end of said pin c and release the train, as represented in dotted lines, Fig. 8. The locking-lever 0 thus operated, the train will run and the lever c occupy a position against or adjacent to the rear face of the wheel a, with the projection 0 in the path of movement of the projection 0 and as soon as the wheel a makes a complete revolution the projection a will strike against the inclined face of the projection c and move the lever 0 back in a horizontal plane, o that the projection 0 will catch the pin 0 when the escape-wheel completes its rotation.

The non-interference magnet n is herein represented as included in the signal-circuit, its armature n being secured to or carried by an armature-carrying lever 11?, pivoted at n and having attached to it a retractile spring W. This armature-carrying lever constitutes the box-controller. The lower end of the box-controller n is beveled, as at n, at one end, (see Fig. 10,) and said armature'carrying lever 01 terminates adjacent to the end of the locking-lever c. \Vhen the locking-lever c is in its locking position and the magnet n demagnetized, the box-controller n will be moved toward the end of the locking-lever c, as represented by dotted and full lines, Fig. 7, so that the said end of the locking-lever will occupy a position contiguous to the beveled portion of the said box-controller. If the locking-leverc is raised when the box-controller n is in this position, the said lever will strike the beveled side n of said box-controller n and will be moved by it, a very short distance toward the escape-wheel a the elongated bearing for the shaft 0 permitting such movement. This box-controller when in this position effectually prevents movement of the lockinglever ctoward the wheel a", and hence prevents the release of the train. lVhen the pull is released, the locking-lever 0 will resume its normal position. This slight movement toward the wheel a is given for the purpose of compensating for any lost motion that there may be between the parts, the effect of which will be apparent in the co-operation of the projections c c.

As herein shown, (see Fig. 3,) the non-interference magnet has two coils a or, one of which is included in the signaling-circuit and the other in a branch wire 4., and a switch is provided for closing said branch wire 4, the members of which 5 6 are suitably supported an" a block, and one of which members is moved into engagement with the other by a plug 0, controlled by the box-door. Another switch is provided, represented by the mem- 6 5 bers 5 and 7, which are also controlled by the said plug 0, the member 7 of said switch being connected with a branch wire 8, which is joined to the line-circuit between the coils n 71 of the non-interference magnet. When the box-door is closedthe circuit passes from the line through the pen 2, signal-wheel b, pen 3, wire 9, coil n, coil n, wire 4, switch 6 7, which will at that time be closed, and to the line. IVhen the box-door is open, the current will pass over the pen 2, signal-wheel b, pen 3, wire 9, coil n, branch wire 8, switch 7 5 to the line, thus passing by and shunting the coil n. Then the door is thus open, the power of the noninterference magnet is reduced about one-thirdv in view of the fact of the coil a being cut out; but there is presumed to be attractive force enough by the coil 7?. to hold the armature n against its poles; but if said armature is once retracted there is not sufficient power to draw it up again. Thus it will be seen that the power of the non-interference magnet is controlled by a switch, which isin turn controlled by the box-door. This is for the purpose of preventing the armature responding to the successive impulses from another box when the home-box door is open. Various ways may be devised of accomplishing this same endviz., to decrease the power of the non-interference magnet when the boxdoor is open-and I will now proceed to describe several modifications, although I do not desire to limit my invention to the specific arrangements shown for accomplishing this result.

Referring to Fig. 11, the coils n n" are con.- nected in circuit substantially the same as in Fig. 3. The coil or, instead of being included in a branch wire, is connected to a shunt-circuit closer- 12 13, which, when the door is open, is closed and shunts out the coil n. In this figure I have also represented the armature as carrying the interposed block which is described in United States Patent No. 323,218, dated January 6, 1880.

Referring to Fig. 12, the coils of the noninterference magnets are both included in the signaling-circuit, and a resistance-coil p is connected in a branch wire with a circuitcloser p, and when the door is open the said circuit-closer p is closed, so that the current will divide, part going through the non-inter ference magnet and part through the resistance-coil, thereby reducing the strength of the magnet. In this. figure the armature is arranged to co-operate with a locking-lever, substantially as shown in United States Patent No. 165,918, dated July 27, 1875.

In Figs. 13 and lat the coils an of the noninterference magnet are included in the sig naling-circuit, and an auxiliary armature tis pivoted at t, which is adapted to' co-operate with the sides of the cores of the coils. Said armature is moved positively by the plug 0 on the door, so that when the door is open the armature will be drawn against the cores by means of the spring 16 and will thereby absorb a portion of the magnetism and reduce its pull onthe armature a.

IIO

As above stated, I have described in coni v nection with Figs. 11 and 12 other forms of controlling devices for signal-boxes. So I do not desire to limit my invention as regards the variation of the power of the non-interference magnet to any particular form of a signal-box.

I claim- 1. In a signal-box, the combination, substantially as described, of a signaling-train, a non-interference magnet, its armature, a box-controller governed thereby, and means controlled by the box-door for slightly decreasing the power of said non-interference magnet when said door is open, that it may hold but not attract its armature, substantially as described.

2. In a signal-box, a signalingtrain a noninterference magnet. its armature, and a box controller governed by the said armature, and a switch connected electrically with one of the coils of said non-interference magnet, which is adapted todisable or render inoperative said coil, substantially as described.

3. In a signal-box, a signaling-train, a noninterference magnet, its armature and boxcontroller governed by the said armature, and a switch connected electrically with one of the coils of said non-interference magnet, which is adapted to disable or render inoperative said coil, said switch being controlled by the box-door, substantially as described,

4. In a signal-box, a signaling-train, a noninterferenoe magnet comprising two coils n at, its armature and armature-carrying lever, and two switches controlled by the box-door, one for including one of the coils in the signaling circuit and the other for including both coils in the signaling-circuit, substantially as described.

5. In a signal-box, a signaling-train, alocking-lever therefor, and means for moving it against the tension of its holding-spring, combined with a projection c on said lockinglever, and a projection c on one of the wheels of the train, and a projection c on said locking-lever, and pin on one of the wheels of the train engaged by said stantially as described.

6. In a signal-box, a non-interference magnet, its armature, and a signaling-train, a vertically and horizontally movable locking-lever therefor, combined with projections carried by moving parts of the train, with which said locking-lever cooperates, substantially as described.

'7. In a signal-box, a signaling-train, a locking-lever, means for holding it in its locking position, and two actuators for said lockinglever, one for placing it in condition to operate and the other to move it to release the train, combined with a box-controller, noninterference magnet, and its armature, substantially as described.

8. In a signal-box, a signaling-train, a locking-lever for it, and a non-interference magnet and its armature, combined with a projection on one of the wheels of the train for holding the locking-lever in its locking position when at rest, and a box-controller governed by the armature of said non-interference magnet for also holding the locking-lever in its locking position when disengaged from said projection and when the armature is retracted, sub stantially as described.

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

FREDERICK W. COLE.

Witnesses:

BERNICE J. N OYES, EMMA J. BENNETT.

projection, sub-

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