US1179770A - Street-indicating apparatus. - Google Patents

Description

T. W. SMALL.

STREET TNDTCATTNG APPARATUS.

APPLICATION FILED IAN. 9T 1913. 1, 179,770, Patented Apr. 18, 1916.

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T. W. SMALL.

STREET INDICATING APPARATUS.y

APPLICATION FILED 1AN.9. 1913.

1,179,770. Patented Apr. 18,1916.

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Mak/2255555. v 2522/55222- EQQM. ZWW /W/ THE cnLUMDm PLANOGRAPH co., WASHINGTON, n. c.

T. W. SMALL.

STREET INDCATING APPARATUS.

APPLICATION FILED 1AN. 9, 1913.

1',1 79,770. Patented Apr. 18, 1916.

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APPLICATION FILED JAN- 9 1913.

1,179,770. Patented Apr. 18, 1916.

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T. W. SMALL.

A STREET INDICATING APPARATUS.

APPLICATI`0N FILED 1AN.9. 1913.

Patented Apr. 18, 1916.

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T. W. SMALL.

STREET INDICATING APPARATUS.

APPLICATION FILED ]AN..9..1913.

L 1,179,770. Patented Apr. 18,1916.

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THE C DLUMBIA PLANOGRAPH co., WASHINGTON, n. C.

, State of Ohio,

THOMAS W. SMALL, OF

COMPANY, OF CLEVELAND,

CLEVELAND, OHIO, ASSIGNOR TO THE ACME INDICATOR OHIO, A CORPORATION OF OHIO.

STREET-INDICATING APPARATUS.

` Specicaton of Letters Patent.

Patented Apr. 18, 1916.

Application filed January 9, 1913. Serial No. 741,131.

To all whom it may concern Be it known thatI, THOMAS W. SMALL, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and have invented a certain new and useful Improvement in Streetnlndicating Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to street indicating machines, of the general type shown in my prior applications Nos. 529,681, filed yNovember 24, 1909 and 57 2,349, `filed July 16, 1910, and particularly to improvements on the construction of the machines shown therein, with certain resultant advantages thereover.

The applications referred to relate to machines of this character which are used on railway cars for indicating streets or stations as they are approached. The machines set forth in these applications comprise, generally, a strip of flexible material which bears the indications of the stations and which has each of its ends attached to a spring drum, the spring drums acting in opposite directions to keep the strip taut.`

The strip is shifted from one drum to vthe other by a driving roller over which the strip passes in its course from one drum to the other. The driving roller is rotated by a spring motor, which is controlled by an electrically actuated escapement mechanism, the escapement mechanism being operated when certain contacts are made, as between a member carried by the trolley polefof the car and stationary contact brushes which'are placed in advance of the stops or stations along the track.

Such construction'as that just described requires the winding of the motor spring at frequent intervals and the reversal of the mechanism at the end of each trip. Since the movement of the strip is controlled, indirectly, by the escapement mechanism, it will be seen that if the strip should, through any cause, be thrown out of c orrect position and thus give inaccurate indicatlons, 1t would require the time and services'of some one to readjust it. y f

The objects of my present invention are; to provide a machine of this character which will operate positively and quietly; wherein the extent of the intermittentmovements of the strip is controlled by means carrled by thestrip, which thus renders accurate the indlcations of the stops or stations as they are approached; which is operated by electrical means and reversed automatically at the end of each trip; and one which includes certain electrical contrivances for promoting positive and accurate operation of the machine under all conditions.

Furthermore, I provide by my present invention, a machine of great capacity, constructed in a compact manner; one which is especially adapted for use on cars which traverse routes which are divided, for a certain portion of their extent, one branch being passed over when traveling one direction and the other branch being included on the return trip.

These, and further objects which will become apparent during the course of this description, I attain in a machine consisting of the combinations of elements set out in the claims annexed hereto, and illustrated in the accompanying drawings forming a part hereof, wherein:

Figure 1 is a perspective of my street indicating machine; Fig. 2 a central, vertical transverse section thereof; Fig. 3 a plan view of the machine, the casing appearing in section; Fig. t an end elevation of the machine, the casing being removed in this and the subsequent figures; Fig. 5 a front elevation; Fig. 6 a vertical section through the operating mechanism, taken onthe line 6-6 of Fig. 5 and looking in the direction of the arrows; Fig. 7 a section on line 7-7 of Fig. 6; Fig. 8 a detail, showing the operative position of certain parts appearing in Fig. 8; Fig. 9 is a detail of the contact rollers which coperate with contact bars upon the indicating strip (a portion of which is shown in said figure) for limiting the movement of the strip; Fig. 10 is a diagrammatic view showing the relative positions of the two contact rollers as associated with the contact bars along the strip; Fig. 11 is a detail of the governor which controls the speed of operation of the machine; Fig. 12 a sectional view on the line 12-12 of Fig. 11; and Fig. 13 a diagram of the electric circuits involved in the carrying out of my invention.

It will be noted, upon a comparison of the machine which forms the subject matter of this application and the machines which are shown in my former applications, that 1 have, in my latest development, widened the indicating strip, and the additional spacelv chine, and is provided with a rear wall 2.

The front of the casing is adapted to be closed by a Vface plate 3 which is secured, at,l its upper edge, to the casing 1 by means ofhinges 4. Straps 5, which are secured to the bottom of the casing and overhang its forward edge, are adapted to project through slots near the lower edge of the face plate 3, one ofv said straps extending beyond the front surface of the face plate 3 a suflicient distance to receive the bail of a padlock 6 within a hole in its forward end. The face plate 3 is provided at about its longitudinalcenter, with an opening 7, through which the street or station indications upon the strip may be read. Openings 8, located on either side of the opening 7, reveal the matter which occupies that portion of the strip betweenits edges and the column of street orV station indications.

The frame ofthe machine comprises right and left hand end plates 10 'and 11, respec-l tively, which-are spaced apart and rigidly` heldin proper relation to each other by the tie rods 12, 13, 14 and 15. Journaled within the end plates 10 and 11 are the trunnionslG and 17 of the drums 18 and 19, respectively. To the left hand end of the drum 18 is secured a spur gear 20, and a similar gear 21.

is secured to the opposite end ofthe drum 19. A shaft 22, which is also journaled in the plates 10 and 11, has loosely mounted on itsleft hand end a spur gear 23which` portion to the length of the strip..

A driving roller 27, which is shown in the drawings as consisting of a shell with solid ends 28, is provided at its right hand end with a stub shaft-30 which is journaled` in theend plate 10 near its lower` forward corner and projects therethrough a sulicient distance to permit a pinion 31 to be secured thereto. A stub shaft 32, which projects from the opposite end of the feedA roller, is journaled within the plate 11 and has secured to its projecting end a gear33. The strip 35, upon which appear thestreet or station indications, has one of its ends se.-

cured to the drum 18 and after passing over the idle roller 36, which is journaled in the plates 10 and 11 vnearvtheir upper forward corners, it passes over the driving roller 27,

and thence. over the idle roller 37 which is located'above and slightly forward of the center of the roller 27 and is also j ournaled in the end plates 10 and 11, andfinally consisting of the aforesaid gears 23 and 24,

the shaft 22 and the spring 25 which is connected to said gears and interposed between the gears 2O and 21, secured to the drums 18 and 19 respectively. By this flexible line `of gearing just described, there is a continual opposition existing between the two drums 18 and 19 which is suliicient to keep the strip taut, notwithstanding the fact that one drum is being driven by the other without the intervention of the strip.A g j As will beA seen by referring to Figs. 2 and 9, the tie rod 13 has yieldingly secured to it, by means of springs40, ra pair of arms 41 and 42 which are composed, preferably,

of fiber or some other insulating material.. Contact rollers 43 and 44 are carried'byeX tensions which are made of some conduct-- ing material, such as brass, vand which are secured to the arms 41 and 42 by meansofj binding posts 45 and 46. Adapted to cooperate with the rollers 43 and -44 are contact bars or pins 47, which are secured to the indicator strip between the various streetv or station indications. -It will be noticed from Figs. 9 and 10 that the points of contact. between the rollers and the strip 35 are out of. transverse alinement, permittingbut a short duration of the contactbetween both of the rollers 43 and 44 and the contact bars or pins 47.v

Three contact arms 48, 49, and `50, somewhat similar to those just described, but considerably longer, are mounted loosely upon the'tie rod 15 and carry contact rollers 51, 52; and 53, respectively, at their forward ends. i Each end .of the indicating strip-is providedwvith a contact plate 82 which is adapted to ride under the middle roller 52 and one of the rollers 51 or 53, when the car upon which the machine is used has reached the end of-its trip'. 1t is the electril cal contactsthus provided which secure accurate registration of the indications with the opening 7 and accomplish the automatic reversal of the mechanism' of the machine previously referred to, andthe means asso ciated with the parts just mentioned for ac-` complishing the reversal will be hereinafter fully, described- Securedto the end plate 10 are the sole- 130 Lux .noids 54 and 55.

The solenoid 54 is provided with a divided core, the parts of which are designated 56a and 56h. The portion 56a has secured to its forward end a block 57 of non-magnetic material. The block projects downwardly and has secured to its rear face, near itsr lower end and in vertical alinement with the core ofthe solenoid, a rod 58 which projects rearwardly from the block 57 and is guided in a bracket 59. A spiral spring 60, which is interposed between the bracket59` and the block 57, tends to maintain the core portion 56a in its outward position. The solenoid 55 is identical with the solenoidy54 and has a divided core consisting of the parts 61a and 61h, the part 61a having secured to its forward end the block 62 which carries a rod 63, projecting at its rear end through the bracket 59 and fitted with a spiral spring 64.

Secured to the end plate forward of the solenoids 54 and 55 are blocks 65 and 66 to the outer ends of which there is secured, by screws 67, a plate 68. The front edges of the blocks carry a plate 69. Journaled in the end plate 10 yand in the 4plate 68 and located midway between the longitudinal centers of the solenoids, is. a shaft which has secured to it, vnear its inner end and adjacent the end plate 10, a spur gear 71 which is adapted to 'mesh with thev pinion 31l on the stub shaft 30 of the feed roller 27 heretofore referred to. Fixed to the shaft 70, substantially at its center, are two ratchet wheels 72 and 73, the teeth of one ratchet wheel being inclined in opposite direction to those on the other. Arms 74 and 75 have their inner ends loosely journaled upon the shaft 70 alongside the ratchet wheels 72 and 73 and to their outer ends are pivoted pawls 76 and 77, said pawls being adapted to engage the teeth of their respective ratchet wheels. Links7 8 and 79 connect the outer ends Aof the pawls 76 and 77 to the blocks 57 and 62 respectively, which are secured tothe outer ends-of the forward core sections of the solenoids. j

By this construction, it will be seen that, when the solenoid 54 is energized, its core will be drawn inwardly, moving the blocks 57 and rod 58A rearwardly against the tension of the spring 60.v As the block57 starts onwits rearward movement, it will, because ofthe connection of the pawl 76 to the link 78, cause the pawl 76 to swing `upon-its pivot until the nose of the pawl engagesV a tooth `of the ratchet 72, and the further movement of the parts will result in a partial rotation of the shaft 70, thus causing the gear 71 to rotate the pinion 31, and consequently the feed roller 27, in a direction to cause the indicating strip to befed downwardly over the roller 36 and fromthe drum 18 'onto the drum 19. 'Screws 80, which are threadedthrough the p1ate'69, form adjustable stops to limit 4the forward movement of the arms 74 and 75 which movement is iniiuenced by the springs 81 connected thereto and the movement of the lower ends ofthe paw'ls 76 and 77, and the excess movement of the blocks 57 and 62 over that of the arms 74 and 75 is ksuthcient to rock the pawls 76 and 77 out of engagement with their respectiveratchet wheels, when the parts are in their normal positions. The rear end portions 56b and 61b of the cores are secured to a plate 85, to which there is secured a slide bar 86 guided within a slot in the outer end of the bracket 59 and beneath a plate 87 which is carried by, and spaced from, the plate 68. Secured to one side of the forward end of the slide bar 86 is a block 88 havingl a curved rear face which corresponds to the curvature of a disk 89 which is secured to the outer end of the shaft 70. The periphery of the disk 89 and the inner curved .face of the block 88 are milled to form a locking engagement between the two members when they are together. A spring 90 which is anchored at its rear e-nd to the bracket 59 and at its forward end to a post projecting inwardly from the slide bar 86, holdsl the bar normally in a rearward position and maintains the engagement of the block 88 with the disk 89. It will be seen, therefore, that when either of the solenoids is energizechthe rear core portion thereof will be drawn forwardly and, because of its connection with the slide bar 86 through the plate 85, the said slide bar will be advanced a sufficient distance to unlock the shaft 7 0 by the disengagement of the block 88 and the disk 89 and permit of the operation of the -machine and that, when the solenoid is denergized, the block 88 will engage the disk 89 and prevent undue movement or overthrow of the parts and especially of thefstrip.

In the path of movement of the rods 58 and 63, but slightly beyond the normal limit of said movement, are contact plates 91 and 92, the purpose of which will be brought out in the description of the electrical circuits that are involved in the operation of the machine. These contact plates are .mounted upon a block 93 of insulating material, which in turn is secured to the `base 94y of the bracket 59. The ends of the rods 58 and 63, which `are adapted to engage the contact plate 91, are capped withinsulating material, as indicated at 95.

The'speed of the operation ofthe machine is controlled by a governor which is shown in detail in Figs. 11 and 12 of the drawings. The governor comprises a block 96, preferably of fiber or other approved friction material, in which there is a circular opening 97. `A pair of semi-circular weights 98 occupy the opening 97 and are held apart and in contact with the wall of the opening by notches light'sprin'gs 99 which are contained within recesses formed in the adjacent `faces of the weights. The said adjacent faces of the weights 98 are also provided, at their centers, with transverse curved grooves for the accommodation of a shaft 100. The ends of a pin 101, which passes through the shaft 100 and is secured thereto, occupy holes which pass vertically through the weights 98. The reduced ends of the shaft 100 are journaled in the left hand end plate 11 of the machine and in a plate 102 which covers the front of the kblock 96 and towhich it is secured as by the screws which pass through the block and are threaded into the plate A pinion l103, which is'secured to the outer end of the shaft ,100, meshes with a gear 104, journaled upon a stubshaft 105 projecting from the end plate 11 (see Fig. 5). A pinion 106 which is secured to the gear 104 meshes with the gear 33 upon the shaft 32 of the feedk rollerV 27. Therefore, when the feed roller is rotated, the governor weights within the opening 97 in `the block 96 are caused to spin and, by centrifugal action, will greatlyincrease the friction between the weights 98 and the curved Wall of the opening 97 and retard the operation ofthe machine. This form of governor is noiseless and is, therefore, very satisfactory for use in connection with these machines. It will be seen, upon referring vto Figs. 1 and 2, that the opening 7 in the faceplate 3pis double the height of that portion of the strip 35 which is occupied by a single streetindication and that half the opening is covered by a shiftable spring plate 110. Fig. 2 shows'this plate as being curved so that its corners bear against the rear side Iof a retaining flange 111, which surrounds the opening r7, andshows the curved back of the plate as vbearing against the glass 112 with which the opening is provided andv which maybe held in place by any approved and well known means, such as by corner piecesf113. When the spring plate 110 is in the position shown in the drawings, its lower corners are :retained within the 114 (formed within the side grooves of the retaining flanges 111) through the resiliency of the plate. To shift the plate to its lower position, its lower redge is sprung toward the glass a sufficient distance todisengage its'corners' from the notches 114, when kthe plate maybe easily shifted to reveal that lportion yof the strip 35 previously covered and conceal the indica# tions formerly ydisplayed through thelower half'of the opening'7. By this arrangement, I provide for acondition which often arises in the routing of city street cars and which requires that the reverse trips of the -car bemade on. different thoroughfares.

This makes it necessary to include, on ythe strip 35, twosets ofindications,one.set registering with the upperfhalf of the opening contact brush such as coveredby my Patent` No. 937,107 and whichV has electric connection `to the trolley wire, there being one of such brushes in advance of 'each of the stops or vstations along the car line. C represents the trolley wheelcarried by the pole D, and E is a contact sleeve adapted to coperate with the brush B when the pole travels past the latter. When lcontact is made between the brush B and the sleeve E, a current passes through the wire a, through the magnet b, the wire a to the arm c, through which it' passes to the contact d, thence through the wire a2 to the solenoid 54, and thence through the wire a3 vto the gro-und. The solenoid P54 will thus be energizedand operate ther machine, das heretofore de scribed, vto moveV the indicating stripV 35 inr the direction indicated by the arrow. The current thus Asupplied t0 the solenoid 54 will besuliicient toyoperate the machinegpro'-v vided that the car were ftraveling slowly,f'or

were actually stopped` with the sleeve Ein engagement with the brush B. 'But consid- Y' ering the speed at lwhich the average streetk car runs, it will be obvious thatl the contactl will be of such brief duration that nothingk more than' a slight impulse would be trans?V mitted to the feedroller, especially `when the speed of such'feedxrolleris under the control of Vthe governor previously men'- tioned. For that reason I provide means, operative bythe .circuitjust described, for introducing into the` circuit additional curleoVY rent direct from the constant supply Vaf- `1 forded by thetrolley wireand wheel means-I will now describe. 1

Immediately 'upon the-energizingof the magnet' b, the lever e -is sw'ungupon its pivot through the attraction of themagnet for its armature',fwhich is secured upon the end of said lever. The opposite end of said lever swings into contact with the over'- hanging end ofthe arm f to 'which vcurrent is supplied directV from`the harp of `the trolley wheel through the wire"-g.y Froml the arm f the currentpasses through the lever e to the wire 'g' 'a portion'of the wire a,

through'thev magnet b, the wire a', and so on through Vthe path previously described, to

,y which the solenoid 54. By this means it will be i w seen that I may supply vcurrent to the solenoid-54 for anyy desired length ofv time after the initial supply` through the brush B` and sleeve E ,is instituted; vThe length Aof time.

the solenoid154is energized is dependent entirelyupon the movement of the strip 35, and .for that reason I include upon saidy strip the contact bars 47 whichcontrol, through their coperation with the contact rollers 43 pin 47 passes beneath the contact rollers 43 and 44', a circuit is established through` the wire 71,1(which .branchesy off from the wire g) through the solenoid z' and thence through the wire t to the contact roller 43, through the contact bar or pin 47, the roller 44, wire tand through the resistance j to the ground. Vhen the solenoid is energized, it pulls the arm 7, against the action of the spring k, out of contact with the leverl c' and thus breaks the circuit and stops the supply of current from the trolley wire. At the .same time, the magnet b is dener gized, releasing its armature, and the lever e is returned to normal position by the spring Z. Since the indicating strip 35 is preferably made of a fabric which might easily be l scorched or burned, it is important that no arcing take place between the contact bars or pins 47 and the rollers 4 3 and 44. I therefore secure to the lower end of the arm f, and insulated therefrom, al contact segment m which is adapted to engage the contact spring n when the said arm is swung about its pivot by the solenoid z'. Thev instant, therefore, that contact `is made between contact bars 47 and the rollers 43 and 44, the segment ml is moved into contact with the spring n and a part of the current passing through the solenoid z' is carried `to the ground through the wire o, the segment m,

the contact spring fn, and the wire o.

The parts above described whereby the feeding circuit is maintained closed after the momentary contact between the sleeve E vvand the'brush B is broken, constitute in efvfect a relay whereby lthe feeding circuit is operative until such time as the strip moves the predetermined distance between ytwo of the contact bars or pins, whereupon the feeding circuit is opened.

To provide for an emergency arising from the absence of any of the contact bars or pins 47, caused, for instance, by the loosening lor the coming olf of said bars or pins, or from the contact bars or pins passing beneath the rollers 43 and 44 so rapidly that the yproper contact will not` be made, I employ, as a safe-guard, the contact springs 91 and 92 which are actuated by the ends of the rods 58 and 63, secured to the cores of the solenoid by the blocks 57 and 62. When the core of either of the solenoids has been drawn in a sufficient distance to operate the machine and move the strip the required amount, the end of the rod carried. by the core presses the contact spring 91 against the spring 92, causing the current which flows through the solenoid to pass through wires p and p to the ground. I

The machine is reversed by conducting the current through the solenoid 55 instead of the solenoid'54'and this is' accomplished by the shifting of the arm c out of engagement with the contact spring Z and into engagement with the contact spring cZ, the arm beingshifted in the following manner ,--As

mentioned inthe foregoing description, a contact plate 82 is secured to each end of the indicating strip 35, and when either of these plates engages the roller 52 and either of the rollers 51 or 53, one or the other of the solenoids g or g is energized to effect the shifting of the arm c. W'ith the parts in the position shown in the diagram and assuming that the plate 82 is bridging the contact rollers 51 and 52 and that the engagement of the sleeve E with a brush B has supplied current to the machine, a circuit will be established through the wire a, the magnet b, the wire a', the arm c, and the contact spring al, identical with the circuit first described, but at this point only a part of the current is transmitted to the solenoid, the remainder of the current flowing through the wire s, the solenoid g, and the wire s,'to the roller 5l, and passing through the plate 82 to the roller 52 it is conducted to the ground through the wire s2 and h2.

When the solenoid g is energized it eX- erts an initial pull upon the lever c, and

swing into contact with the spring cl', and

the 'current from the arm c is then conducted through the wire t to the solenoid 55. There is no contact bar 47 to engage the rollers 43 and 44 when the plate 82 is in engagement with its respective rollers, but the machine will stop as soon as the arm c leaves the spring contact d, thereby breaking the-circuitthrough which current is supplied to the solenoid 54. l

A manually operated switch has been included in the trolley circuit for the purpose of advancing the strip at will should it, through any cause, y(as, for instance, the disability'of one or moreof the brushes B) be thrown out -of proper relation to the streets or stations. This switch performs the same function as the switch comprising the lever c and the arm f.

Having thus described my invention,

what I claim is:

4 short circuit the strip contact.V

tance, and means controlled by the movement of said core forfautomatically suspending such feeding movement When the predetermined distance has been exceeded. y

3. In an apparatus of the character described, the combination of Aa-strip, means .including a solenoid core for feeding said strip intermittently predetermined fdistances, and means also controlled by the movement of the core forsuspending the feeding of the strip should it be carried beyond such predetermineddistance.

4., In an apparatus ofthe character described, the combinationl of a strip, 'a solenoid having a divided core, means Vincluding one of the core members for feedingt'he strip, and means controlled by the other core member for blocking the movement of the strip.

5. In an` apparatus of the character described, the'combination of a strip, means for moving said strip, other-means for locking said strip against movement, anda sole- .noid having-a divided core, the core portions acting simultaneously to operate the feeding mechanism and to render ineffective the locking mechanism.

6. lIn'anapparatus of the character-described, the combination of a strip, an electric circuitfor'feeding said strip predetermined distances, contacts arranged'to mo- 'tainthe same closed after the separation of said contacts, said relay v'including a movable contact member which is adapted, When `in normal position, to close thek feeding circuit, a contact onkthe strip,7a two-branched circuit, 'fone branch' whereof includes the strip contact and is adapted When closed 'to shift the movable contact member and the secondv branch whereof is closed by the movable -contact member when.v so shifted to 8;"In an apparatus of the characteriset forth', the- .combination of a" strip having contact members, an electriccir'c'uit for feedingv said strip, contacts arranged to .close said circuit momentarily, avrelay in said circuit.

bar reaches y the circuit arranged to-maintain thefsame closed after separation of said contacts, ka circuit for 'opening the first mentioned circuit and including .the contact membersv 'on ,the strip,

` and means controlled by the secondv circuit for short-circuiting vthe same when closed bythe strip contact members.'

.9. In an apparatus of the'characterl kset forth, the combination of a strip" having spaced contact members thereon, a feeding circuit for said strip, a circuit including said contact members forfbreaking theA firstmentioned circuit, and means additional to the second circuit for breaking the feeding 10. In an apparatus of the character set forth, the combination, of a strip, spaced contact members thereon,fan electric circuit for feeding the said strip, a circuit including the contact members for breaking'the rfeeding' circuit, and a circuit, additional to the second circuit, for automatically break- 'ing the feeding circuit, should'the second circuit remain open.

11. In an apparatus ofthe character set.

forth, they combination of a strip, mechanism for feedingisaid strip, a` circuit for operating said mechanism, a second circuit controlled by the strip for breaking the first vmentioned circuit, and a. circuit controlled byv thesai'd feeding mechanism for'breaking the irstmentioned circuit 'shouldv the second circuit be inoperative for such purpose. Y

' l2. In an apparatus of the characterset forth, the combination of a strip, mechanism for feeding said strip,`a solenoidfhaving a core vfor'operating said mechanism, a circuit controlled bythe strip foribreaking the Vsolenoid circuit, and a circuit Vcontrolled by `vthe solenoidy corey also for breaking the vsolenoid circuit shculd the second circuit be inoperativefor such purpose. c l Y 13. In an'apparatus of the character described, Ithe combination of. a strip, means@ for feeding the same, contact bars or pins lcarried thereby, and a jcircuitrcoperating with said barshor pins, andincluding -a pair of` rollers, said rollers being arranged 'to l simultaneously engageeach pin or bar, such simultaneousv engagement occurringv When a pin or bar 'hasV passed the perpendicular center V`of'one roller'and vbefore the pin or perpendicularv lcenter of the other roller.

signature in thepresence of tvvofWitnesses.y

'riioMAs W. SMALL.

Witnesses: i*

` yliuiivi'viiiv B.' WEST, J. B. vI-IULL.r a'

ion y.

n. ,-7115 In' testimony whereof, I hereuntoafix my vlGenies of this patent may be` obtaiedfi'cr fivel cents' each, by addressngthe Commissioner of Patents.

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