US1293290A - Railway-traffic-controlling apparatus. - Google Patents

Description

W. ZABEL.

RAILWAY TRAFFIC CONTROLLING APPARATUS.

APPLICATIQN FILED MN. 25.1917- ?atented Feb. 4, 1919.

6 SHEETSSHET 1.

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W. ZABEL.

RAILWAY TRAFFIC CONTROLLING APPARATUS.

APPLICATION FILED JAN. 25, I917- Patented Feb. 4, 1919.

6 SHEETSSHEEI 2.

INVENTOR WITNESSES W.ZABEL.

RAILWAY TRAFFIC CONTROLLING APPARATUS.

'MFLICATION EILED JAN. 25. 19171 Patented Feb. 4, 1919.

6 SHEETS SHEET 4,

WITN ESSES QNVENT'DR WALK/flaw am W. ZABEL.

RAILWAY TRAFFIC CONTROLUNG APPARATUS.

, APPLICATQN FILED JAN- 25' 1917. 1,293,29Q. Patented. Feb. 4, 1919,

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W. ZABEL.

RAILWAY TRAFHC CONTROLLING APPARATUS.

APPLICATION FILED JAN. 25. 1911.

1,293,290, Patented Feb. 4, 1919.

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59 j p/l WITNESSES INVENTOR NITED STATES FATE OFFTQE.

WILLIAM ZABEL, OF EDGEWOOD BOROUGH, PENNSYLVANIA, ASSIGNOR TO THE UNION SWITCH & SIGNAL COMPANY, OF SWISSVALE, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

RAILWAY-TRAFFIC-CONTROLLING APPARATUS.

naeaeao.

Specification of Letters Patent.

Patented Feb. 4.1919.

Application filed. January 25, 1917. Serial No. 144,330.

To all whom it may concern: 7

Be it known that I, WILLIAM ZABEL, a citizen of the United States, residing at Edgewood Borough, in the county of Allegheny and State ofPennsylvania, have in vented certain new and useful Improvements in Railway-Traffic-Controlling Apparatus,

of which the following is a specification.

This invention relates to railway traffic controlling apparatus, and has particular application to a railway switch operating and locking mechanism together with an in dicating means therefor.

An object of the invention is the provision of a simple and eflicient mechanism for operating and locking a switch.

Other objects of the invention will appear from a consideration of the following detailed description, taken in connection with the accompanying drawings forming a part ofthis specification, with the understanding,

however, that the embodiments illustrated,

and with the covers for the casing removed.

Fig. 3 is a viewshowing in side elevation and partly in section the mechanism shown in Fig. 2. Figs. 4., 5, and 6 are detail plan views showing on a larger scale the crank and its connection with the operating rod and slide bar shown in the preceding views. Fig. 4 shows these members in the positions corresponding to the normal position of the switch, while Figs. 5 and 6 show the memhers in position corresponding to the intermediate and reverse positions of the switch respectively. Fig. 7 is a side elevation of Fig. 1, the operating rod being shown in section. Fig. 8 is a fragmentary plan view of the operating rod. Fig. 9 is a view showing in side elevation a portion of the point detector bar. Fig. 10 is a transverse sectional view taken on the line XX of Fig. 9 and looking in the direction of the arrows. Fig. 11 is a view showing in plan, the point detector bar shown in Figs; 9 and 10. Fig. 12 is a view showing diagrammatically the lndicatlng apparatus and the controlling means therefor applied to a switch. Fig. 13 1s a plan view of a'frog layout having a modified form of the apparatus shown in Fig. 12 applied thereto, a portion of this apparatus being broken away.

Similar reference characters refer to similar parts in each of the several views.

Referring first to Fig. 1, the reference character S designates a railway switch which is operated by a mechanism inclosed in a casing C and embodying my invention. The switch S is of the ordinary construction and essentially consists of stock rails R R, and of switch points 10, 10 connected for simultaneous movement by a front rod 11,

a head rod 12, and a tie rod 13. The casing C is secured to the two adjacent ties H lo-v cated adjacent the free ends of the switch points 10 and comprises three compartments C, C and G as shown in Figs. 2 and 3. Compartment C is provided with a hinged cover 18, compartment C is closed by means of a removable cover 19, and compartment C is provided With a removable cover. The mechanism comprises in this instance an operating rod 0 connected to the head rod 12, as shown, and which extends into the compartment C through a suitable opening formed in the wall thereof. Extending into the compartment C is a lock rod L which is arranged below the adjacent rail R and is rigidly but adj ustablyconnected to the front rod 11 for movement with the switch S, as will be understood. Slidably mounted within the casing C and extending longitudinally thereof is a slide bar N, such bar intersecting the operating rod 0 at right angles and overlying the same. This slide bar N coacts with the lock rod L to lock the switch in either extreme position in a manner well understod in the art.

To actuate the operating rod 0 and the slide bar N, I provide a mechanism comprising a vertically disposed shaft 30 (Fig. 3) arranged within the compartment C and journaled in a pair of spaced bearings 31 and 32. The upper end of the shaft 30 is reduced in diameter and is surrounded by the upper bearing 32, a bushing 33 being interposed between the bearing and shaft. The upper bearing 32 is removably supported within the compartment C by means of integrally formed wings 34:, e4 bolted to projections 35, 35, (Fig. 2) formed on the side walls of the casing C. The shaft 30 is suspended from hearing 32 by virtue of a nut 36 screwed on the threaded upper end of the shaft and resting on the bushing 33, and also by virtue of a shoulder on bushing 33 which rests on the upper surface of the bearing. The lower bearing 31 is integrally formed with a partition 37 cast with the casing C, as shown. Keyed to the shaft 30 for movement therewith and interposed between the bearings 31 and 32 is a worm wheel 38, while meshing with the wheel 38 is a worm 39 keyed to a horizontally disposedshaft 40. The shaft 40 is journale'd in suitablebearings 41, 41 formed in the side walls of the casing, and is adapted to be driven, in this instance, by means of an electric motor M through the medium of. suitable gearing hereinafter described. For lubricating the gears 38 and 39, ll place oil in the compartment C such oil resting on thepartition 37, and splash this oil upon the gears by means of a blade Z frictionally mounted upon the shaft 40 by the clamping rings 2, a. By means of the rings 2, z, the blade, which normally lies within the oil, is thrown upwardly by rotation of the shaft 40 to either side of the gears 38 and 39, depending upon the direction in which the shaft 40 is rotated, whereby the oil carried by the blade will be thrown upon the gears. The motor M is located in compartment C and is rigidly clamped to the casing by means of rods L3 extending through cars 44 formed on the motor, the free ends of the rods being threaded to receive nuts 4-5. The motor shaft designated as a6, is operatively connected to the shaft 4C0 by means of a spur gear 47 fixed to the shaft as, an idle gear 47, and a gear e 8 mounted on the shaft 40 and connected therewith by means of a frictional spring clutch 49 to prevent injury to the motor and gears when operatin; the mechanism. The gears 47, L7 and 48 and the clutch 4.9 are here shown arranged within a box B, which is formed integrally with the casing C, the box being losed by means of a cover 50 removahly secured thereto by bolts 51. To give access to the shaft 40 to propel the same manually, I provide the cover 50 with an opening 50 at a point opposite the adjacent end of the shaft 40, which opening is covered by a screw cap 52. i

From the foregoing description it is evident that when the motor M is energized, its shaft 46 will rotate the gears 4:7 and 4:8 to cause rotation of the shaft 4-0 and the worm 39, which worm in turn rotates the worm wheel 38 and likewise the shaft 30, the blade Z being moved to deposit. the lubricant upon the gears, as has been described.

The lower end of the shaft 30 is provided with means which I will now describe for actuating the operating. rod 0 and the slide bar N Q As previously stated, the operating rod O and the slide 10211 N intersect each other at right angles andwithin' the compartment C the slide bar being arranged above the operating rod. The axis of the shaft is disposed at one side of the point of intersection of the rod 0 and bar N, while its lower end extends through a slot 53 formed in a can1 5 l on the bar N andiis provided with a horizontally disposed cranl: 55. This crank 55 is of substantially rectangular formation and is rigidly connected to the shaft 30 at its medial portion, its upper side being formed with pins or projections 56 and 57 arranged, on opposite sides of the shaft, while its underside is provided with a pin 58 carrying a, roller 59. such pin being disposed at one side of pin 57. The cam 54 is relatively thick and wide vith respect to the main part of the slide bar N and is integrally formed therewith, the right-hand end of the cambeing formed with a vertically offset bar 6O. The partitions 16 and 17 of the casing C are provided with registering openings 61 and 62, respectively, to receive and thereby permit free movement of the slide bar N within the casing. A stop 63 formedon the bedplate 1e limits the movement of the slide bar in one direction, as shown. The underside of the cam 54 is formedwith spaced recesses er and 6 k adjacent one side edge thereof to receive the pins 56' and-57 when the crank 55 is rotated, while the" opposite ends of the cam are provided with flanges 65 and 65 The confronting sides of the flanges 65 and V 65 are curved inwardly at theirmedialportions to receive the curved'ends of the crank 55 while the opposite ends ofthe flanges are flat to engage the sides of the crank as will be more fully described hereinafter. The operatingrod 9 is formed with a cross arm 66 having a longitudinally extending groove 67 formed on the upper side thereof in which works the roller 59 of the cranl-z. One end of the groove 67 is open while the side walls o'fthe groove are arranged paral lel to each other from the-open end to its medial portion whereupon they are curved outwardly and inwardly to describe an are, as shown in F 8 7 By virtueof this construction it will be seen that with the parts in the position shown in Fig. at, upon rotation of the crank in a-clockwise CllIBC-JlOIl, the pin 57 is caused to engage the left-hand wall of the recess 6-1, whereby theslide bar N is moved to the left. During this movement of the crank, the roller 59, whose initial position was at the closed end of the groove 67, is moved to the medial portion of the groove or at the intersection of the straight and curved walls thereof. This movement of the roller, however, does not cause the operating rod to be moved, as the groove is of sufiicient width and of the-proper curvature to permit crank, the curved ends thereof engage the curved sides of the flanges 65 and 65*, as shown in Fig.- 5, so that the crank then serves as a locking means for the slide bar N to prevent longitudinal movement thereof. Upon further continued movement, pin 56 enters recess 6e? and imparts a second move ment to the slide bar in the same direction as its first movement, whereby the parts finally assume the positions shown in Fig. 6. It will thus be seen that by'means of a single rotating element, rectilinear movements are imparted to the operating rod and the slide bar, and that the movement of the operating rod is subsequent to the initial movement of the slide bar but in advance of the final movement of the bar." It is to be understood that by rotating the crank 55 in a counter clockwise direction, the sequential movements of the operating rod and slide bar are maintained but the directions of movements are reversed;

Having described the principal structural features comprising my apparatus, I will now describe the operation of same. With the switch in its normal position, as shown in Fig. 1 and the operating and locking mechanism in the corresponding position, as shown in Figs. 2 and 3, it will be apparent that when the motor M is energized to rotate the shaft 30 in a clockwise direction, the crank 55 will likewise rotate clockwise to move the slide bar N to the left, a predetermined distance, which movement will release the lock rod L to permit moving of the switch S. The unlocking movement for the switch having been completed, the crank now moves the operating rod and consequently the switch S to its reversed position, whereupon the slide bar is again moved in the same direction to again engage the lock rod and thereby lock the switch in reversed position. It is thought a description of the operation of the mechanism when moving the switch from reversed to normal position is unnecessary, as it is obvious that the movements of the mechanism are just reversed.

From the foregoing, it will be manifest that I have provided a simple and efficient mechanism for operating a switch and for locking the switch in either of its extreme positions.

In conjunction with the above described mechanism, I have provided a circuit controller for controlling indication means, the latter forming part of an interlocking machine, such as that shown in United States Patent No. 1,101,040, granted June 23, 1914, to Scattergood and VVa-llace. This circuit controller, which is generally indicated as at X, is illustrated in plan in Fig. 2, and in elevation in Fig. 3, and is here shown mounted within the compartment C and above the slide bar N. In Fig. 12, the circuit controller X is shown diagrammatically, together with the circuits for the indication means, and the actuating means for the controller. The circuit controller X essentially consists of shaft 7 O, which is adapted to be rotated in either direction by means of the slide bar N, a rack bar 71 being secured to the bar N to drive a spur gear 72 fixed to the shaft through an idle intermediate gear 73. The shaft 70 has fixed thereto two pairs of concentrically disposed cams 74 and 74?, which are adapted to actuate, when rotated, movable contact fingers 75. The fingers 75, as here shown, are connected in pairs for simultaneous movement by means of insulation bridges 76, 76 the two pairs of fingers "being hereinafter designated as T and T,

respectively. The contact fingers T and T are provided with rollers 77 and 7 7 respectively, which coact with the corresponding cams 74: and 74:, and serve as an actuating medium for the contact fingers when the cams are rotated. The fingers T and T when out of engagement with their respective cams assume an inclined position to engage lower stationary contact fingers 78, 78 and 7 8, 78, but when engaged by the cams all of the movable fingers are lifted to cause the inner finger of each pair T and T to contact with upper stationary contacts 79 and 7 9, respectively. The cams 74: and 74 are so arranged with respect to each other as to lift all of the contact fingers while the slide bar N is in transit and to retain either one pair or the other in raised position after the slide bar has reached the end of its movement in either direction. To simplfy the description, I have shown in Fig. 12 only a part of the indication means of an interlocking machine shown in the above-mentioned patent, such part be ing a polarized relay P. The relay P is adapted to be energized by a battery B, the supply of current thereto, as well as the polarity thereof, being controlled by the circuit controller X. When the contact fingers T and T are in the positions shown in Fig. 12, current from battery B is supplied to the relay P through the following circuit: from positive side of battery through wire 80, inner contact 78, inner finger of the pair T, wire 81, winding of relay P, wire 82, outer finger of the pair T, outer contact 7 8, and wire 83 to battery B. Thus the relay P is now energized in such direction as to give one indication, as will be hereinafter explained. It is to be understood that when the contact fingers T and T are in the positions just described, the slide bar N, is in its extreme right-hand position and that the switch S is in normal position. I will now assume that the slide bar is moved from this extreme position to its extreme lefthand position; during the first portion of such movement, the cams 74 are rotated to elevate fingers T, the fingers T being retained in their elevated positions as shown. The supply of current from battery B to the relay P is then discontinued, and inasmuch as contacts 79, 79 are connected by means of a wire 84, the relay P is placed on short circuit to shunt therefrom any stray or foreign currents which might leak into wires 81 and 82. hen the slide bar has reached its extreme left-hand position, the fingers T are released and so will fall to their lower positions. Relay P is then energized in the opposite direction, the circuit being: from positive side of battery B, through wires 80 and 85, inner contact 7 8 inner finger of pair T, wires 86 and 82, winding of relay P, wires 81 and 87, outer finger of pair T, outer contact 78, and wires 88 and 83 to battery B.

Having described the construction of the circuit controller and its operation by means of the slide bar N, I will now describe the same in conjunction with the switch operating and locking mechanism above described. With the switch S in its normal position, as shown in Fig. 1, the circuit controller X assumes a corresponding position, as

shown in Fig. 12, the contact fingers T being elevated while the fingers T are in their lowered or normal position. \Vith the contact fingers in this position, current from battery B is supplied to the relay P in such direction as to energize the relay to give an indication by means of which the operator is informed that the switch is locked in normal position. lVhen the motor M is energized to move the switch S from normal to reverse position, it will be understood from the previous description of the operating and locking mechanism that the slide bar N is first moved to disengage the lock rod L and thereby unlock the switch S. By this initial movement of the slide bar N, the cams 74 and 74: are rotated in a clockwise direction so that the contact fingers T are elevated, fingers T remaining in their elevated positions as shown. The supply of current to the relay P is then discon- 1 ,aeaseo tinned to de'elnergize the same, and the relay is placed on short circuit. The operating rod 0 is now actuated to move the switch S to reversed position, whereby and upon completion of such movement, the .slide bar N is again moved in the same direction as before to its final or extreme position to lock the switchin reversed position. With this latter movement of the slide bar N, the cams 7.4 and 74 are again rotated in a clockwise direction, so that fingers T are lowered but fingers T are maintained in elevated position, whereby current from bat tery B will be supplied to relay P in the reverse direction. Thus relay P is now energized in such direction as to indicate that the switch is locked in reversed position.

It will be evident from the foregoing that in order .to obtain the normal or reversed indication, it is necessary that. the slide bar N be in looking arrangement with the lock rod L, thus preventing release of the controlling lever until the switch is looked, as will be understood by referring to the previously mentioned patent.

A further embodiment of my invention is also shown in Fig. 12, which embodiment comprises a controlling means for the circuit controller X and operable independently of theslide bar N, suchcontrolling means being designed to open and short circuit the relay P if the switch points 10 should be open when the slide bar N is in looking position. This open condition of the switch points may arise from numerous causes,such as improper adjustment of the locking mechanism withrelation .to the switch, or trailing of a car through the points. In carrying out my invention I provide a short bar 89 arranged at one side of and below the circuit controller X, such bar being mounted for longitudinal sliding movement. Fulcrumed as at 90 upon one end of the bar 89 is a lever 91, to the opposite ends of which are pivoted, as at 92 and 92 respectively, rods 93 and 93. 94 and 94: designate a pair of bell crank levers which are carried by a suitable support (not shown), one arm of each of the levers being pivoted to rod 93 or 93% while the other arms of the levers are pivotedly connected to the insulation bridges 7 6 and 7 6 respectively, by means of links 95 and 95 respectively. As here shown, the rods 93 and 93 are slidably mounted in guideways 96, 96 and are normally retained in projected position by means of coiled expansible springs 97, 97 Spring 97 abuts against two collars 98 one of which rests against a shoulder on the rod 93 and the other against the guideway 96. Spring 97 abuts against two collars 98 which are mounted in similar manner.

By means of the foregoing construction it will be evident that the bar 89 is operatively connected to both of the sets of contact fingers T and T for the actuation thereof, and that the rods 93 and 93 normally tend to retain the fingers T and T" in lowered position by virtue of the springs 97, 97. T o operate the bar 89, I provide a point detector bar D, which as shown in Fig. 1, has one end thereof rigidly connected to the front rod 11 for movement therewith. This detector bar D is arranged transversely with respect to the casing G and is composed of a relatively long section 99 and relatively short-section 99 the latter section being disposed within the compartment C and movable longitudinally and at right angles to the bar 89; lateral movement of said section being prevented by guide rollers 100 and 100 in one direction and by a roller 101 carried by the bar 89, in the other direction.

'As shown in Figs. 9, l0 and 11, section 99* of the detector bar D is formed, on that side which contacts with the roller 101, with a recessed portion 102 in which is secured by means of screws 103, a plate 104. This recessed portion 102 is such as to cause the plate 104 to lie flush with the side of the section 99 and to maintain the intermediate portions of the plate in parallel spaced relation to the inner wall of the recess. plate 104 is relatively narrow, its'lower edge being formed between its ends with a cam 105, the opposite ends of which are beveled, as shown. Adjustably mounted between the plate 104 and the sidewall of the recess 102 l is a member 106, the side edges of which are formed with laterally co-extending flanges 107 and 107. The lower flange 107 constitutes a cam which is in effect an adjustable extension Of'thfi cam 105, the flange being arranged in the same general plane as the cam 105, so that by moving the member 106 the length of the cam may be varied. The member 106 may be'locked in any position upon the section by means of a locking plate 108 arranged upon the top edge of the section and having a serrated underside which is adapted to co-act with the upper edge of member 106. The locking plate, as here shown, is clamped into locking engagement with the member 106 by means of screws 109, I having provided a plurality of screw holes 110, whereby the locking plate may be moved to engage the member 106 regardless of the position of the latter. The roller 101 is so positioned that it coacts with both of the cams 105 and 107; wherefore both camswill be effective to move the bar 89, as will be hereinafter described. I a

From the above description it will be seen that when either of the cams 105 or 107 is in engagement with the roller 101, the bar 89 will be moved to raise the contact fingers T and T through the intervening mechanism. However, when the cams .are in disengaging position with respect to theproller 101, bar

The

.89 will return to its normal position under the action of the springs 97 and 97*, which movement in turn causes the lowering of the contact fingers T and T. In practice, the cam 107 is adjusted with respect to the cam 105 so that the combined lengths of such cams will be exactly equal to the longitudinal movement of the bar D when moved by the switch S, whereby the roller 101 will be engaged by the cams during movement of the bar D but will be disengaged when such bar occupies either extreme position. As the detector bar D is rigidly connected to the front rod 11, it is obvious that one of the cams 105 or 107 will be in active engagement with bar 89 except when the switch points "are in one extreme position or the other.

The operation of the above described controlling means during movement of the switch S and its effect upon the indicating means is as follows: With the switch S and the circuit controller X in their normal positions, as shown in Fig. 12, the roller 101 is at one end of cam 105107, so that contact fingers T are enabled to occupy their lowered positions, whereby the circuit controller gives the normal locked indication by means of the relay P. Now for explanatory purposes let us assume that, owing to any cause, the points of switch S are moved to an intermediate position although the switch is locked in normal position. Under such conditions, detector bar D will not assume the position shown in Fig. 12 but will be so positioned that one of the cams 105 or 107 will engage the roller 101, thus moving the bar 89 to cause the lever 91 to swing about the pivot 92 as a center, whereby fingers T'will be raised, it being understood that fingers T were previously raised when the slide bar N was moved into locking position. Thus relay P becomes deenergized and the operator is immediately informed that the switch does not coincide with the position of the controlling lever. It will be manifest from the foregoing that I eliminated the possibility of a false indication and that it is necessary that the switch points be in their proper position before the corresponding indication is received.

In Fig. 13, I have shown a portion of the apparatus shownin Fig. 12 slightly modiand having their confronting ends connected by front rods 11 and 11 respectively. Rigidly connected to each of the front rods 12 and 12 and extending to the sameside of the layout are two point detector bars D and D" respectively, each bar being of the .same construction as the bar D in Fig. 12.

The bars D and D are of equal length,

but as the pairs of switch points V and V assume opposite positions with relation to each other, one of the bars will always be thus-impart rectilinear motion to the slide bar :89, as in the form shown in Fig. 12.

By virtue of this construction and arrangement it is apparent, when considered in view of the operation of the apparatus shown in Fig. 12, that in order to obtain/an indication through the medium of the relay 1, it is necessary that the point detector bars D and D" be in either of their extreme :po-

sitions, and as the bars D and D are rigidly connected to the switch points V and V, it is evident that the indications are only obtained when the points are vin contacting engagement with the stock rails R, It.

Time it will be seen that I have provided means for utilizing the circuit controller X to cause the indicating means to giwe indications as to the position of either pair of switch points V "and V.

Having thus described my'invention, what I claim is:

1. A switch operating mechanism comprising a switch operating :rod having a cam slot therein, a switch locking slide bar having two cam slots therein, and :a crank having a projection on one side thereof coacting with the slotin the operating rod to move the rod, said crank having two projections on the opposite side thereof meeting with the two cam slots in the slidebar to move said bar.

2. A switch operating mechanism comprising an operating rod, a slide bar, and a member having means on one side thereof cooperating with means on the operating rod for intermittently moving said rod, and means on the opposite side of said member cooperating with means on said slide bar for intermittently moving said bar, said means on the opposite sides of said bar and rod being arranged to cause alternate movement of said rod and bar.-

A switch operating mechanism comprising a switch operating rod having, a cam slot therein, a switch locking-slide bar having two cam slots therein, and a crank having a projection on one side thereof coacting with the slot in the opera-tingv rod to move-the rod, said crank having two projecticns on the opposite side thereof coactmg with the two cam slotsin the slide bar to mowesaid lbar, said slide bar having survfaces coacting with said crank to lock the slide bar while the operating rod is being moved.

slide bar having recesses formed therein to receive the other projections, and means for rotating said crank.

5. .A switch operating mechanism comprising a rotatable crank, projections termed on the opposite sides thereof, an

operating rod arranged below said crank,

and having a recess for receiving a 'PI'OJGG- tion'upon one sideof said crank, aslide bar arranged above :said crank and having slots therein to receive projections upon the upper side-of :said crank, and means for rotating said crank a predetermined distance.

6. A :swiitch operating mechanism comprisingnan operating'rod and a slide bar intersecting at right angles, a member 'disposed between the rod and bar adjacent the point oi intersection, and means carried by the member and coiiperating with means on said rod and bar for intermittently and alternately moving the rod and bar.

7. A switch operating mechanism comprising an operating rod and a slide bar intersecting at right angles, said rod and bar being mounted for reciprocating move ment, and rotary means interposed between said rod and bar for alternately reciprocating said rod and bar. a

8. A switch operating mechanism comprising an operating rod having recesses formed therein, a crank, eccentrically disposed lugs formed on the crank, and means for rotating said crank whereby said lugs willbe caused to alternately engage the walls of said recesses to reciprocate said rod.

9. A switch. operating mechanism comprising an'operating rod and a slide bar intersecting at right angles, andmeans rotatable in a plane parallel to the planes in which the rod and bar move forintermittertly and alternately moving said bar and r0 I 1 0. A switch operating mechanism comprising .a motor, a shaft, a train of gears operatively connecting said motor and shaft, a worm keyed to said shaft, a crank, a gear connected to said crank and meshing with said worm, an operating rod and a slide bar arranged upon opposite sidesof the crank respectively, and means carriedby the crank tor alternately and intermittently moving said rod and. bar.

11. A switch operating mechanism comprisinga motor, a horizontal shaft, a train of gears operatively connecting said motor and shaft, a clutch mechanism connecting said gears and shaft, a vertical shaft, means operatively connecting said vertical and horizontal shafts, a crank carried by the vertical shaft, an operating rod and a slide bar disposed upon. opposite sides of said crank 10 respectively, means formed on the crank for intermittently and alternately moving said rod and bar when said vertical shaft is ro tated.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM ZABEL.

Witnesses:

R. HERMAN WEGNER. R. GEORGE RUDMAN.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0.

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