US1844686A - Apparatus for recording electrically transmitted signals - Google Patents

Apparatus for recording electrically transmitted signals Download PDF

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US1844686A
US1844686A US343806A US34380629A US1844686A US 1844686 A US1844686 A US 1844686A US 343806 A US343806 A US 343806A US 34380629 A US34380629 A US 34380629A US 1844686 A US1844686 A US 1844686A
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lead wire
thence
contact
magnet
arm
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US343806A
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Louis L Rustad
Victor E Extrom
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TELEGRAPHY IMPROVEMENTS Co
TELEGRAPHY IMPROVEMENTS COMPAN
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TELEGRAPHY IMPROVEMENTS COMPAN
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1804—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for stock exchange and similar applications

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  • This invention relates to an apparatus adapted to receive electrically transmitted signals and to transform such signals into visible, intelligible and permanent form, and the invention has reference to an apparatus which may be used for various purposes, but which is more partcularly adapted to the purpose of posting stock market quotations, as received at a brokers oflice, opposite the respective stocks on a board which may be similar in general appearance to the blackboards now in common use.
  • a system now in vogue of receiving and publishing stock-market quotations employs an electrical printing device known as a ticker which records the incoming signals on a tape or narrow ribbon of paper, this paper tape usually being torn oil as it issues from the ticker and the abbrev1ated quotations on the tape being subsequently written on a large blackboard opposite the names of the corresponding stocks.
  • An object of the present invention is to provide an apparatus for selecting individual quotations or items of information from a group of quotations or items of information successively signalled electrically and for posting each separate quotation or item of information selected opposite an approprlately designated stock or heading to which the sald selected quotation or item of informatlonrelates.
  • a further object is to provide an apparatus for selecting stock-market quotations as received at a hrokers oflice, and for posting each selected quotation upon a ticker board op- 'posite a designated stock to which the selected quotation relates.
  • a still further object is to provide an apparatus of the present character wherein will be incorporated novel and improved features and characteristics of construction designed to render the apparatus efficient, dependable and satisfactory in the performance of its several i ntcnded functions.
  • Fig. 1 is a diagrammatic view showing a ticker, an apparatus having the features of the invention, so much of an instrument for electrically transmitting signals to the ticker and apparatus as is necessary to a. full understanding of our invention, and wiring connections from said instrument to said ticker and apparatus;
  • Fig. 2 is a diagrammatic view corresponding generally with the disclosure of Fig. 1, but showing an apparatus of variant form made in accordance with the invention designed to be responsive to the modified type of sending instrument illustrated;
  • Fig. 3 is a detail view disclosing a manner in which a lever bar in Fig. 1 or Fig. 2 can be depressed to stop the rotation of the cylinder of the sending instrument;
  • Fig. 4 is a diagrammatic view detailing the improved apparatus of Fig. 1 and showing the relation of said apparatus to the sending instrument and the ticker;
  • Fig. 5 isa diagrammatic view detailing the improved apparatus of Fig. 2 and showing the relation of said apparatus to the sending instrument and the ticker;
  • Fig. 6 is a front elevational View of a board for posting stock-market quotations
  • Fig. 7 is a vertical longitudinal sectional view of the mainselecting mechanism of the apparatus taken as on line 77 in Fig. 8
  • Fig. 8 is a horizontal sectional view taken as on line 8-8 in Fig. 7;
  • Fig. 9 is a vertical transverse sectional view taken as on line 99 in Fig. 8;
  • Fig. 10 is a fragmentary sectional view corresponding with the disclosure of Fig. 9, but showing a tumbler as having dropped to close the printing unit or number circuit.
  • Fig. 11 is a fragmentary sectional view detailing keys and tumblers, disclosing all of the tumblers in elevated position;
  • Fig. 12 is a view similar to Fig. 11, but disclosing the keys actuated to allow a tumbler to fall to close the printing unit or number circuit, the said tumbler being shown as havin dropped;
  • Fig. 13 is a sectional View taken as on line 13-13 in Fig. 7 detailing the rectifying device of the apparatus;
  • Fig. 14 is a longitudinal sectional view detailing a printing unit of the apparatus
  • Fig. 15 is an enlarged sectional view taken as on line 15-15 in Fig. 14;
  • Fig. 16 is a sectional view taken as on line 1616 in Fig. 15;
  • Fig. 17 is a detail view of the feed for the printing unit tape
  • Fig. 18 is a detail view of the printing wheel
  • Fig. 19 is a detail view of the device for taking up slack in the printing unit tape
  • Fig. 20 is a sectional view taken as on line 202() in Fig. 19;
  • Fig. 21 is a detail view of the switch for controlling the secondary selector
  • Fig. 22 is a detail view of the switch for controlling the switch just mentioned and for also controlling the drop and elevation of the tumblers;
  • Fig. 23 is an elevational view detailing the group switch of the apparatus.
  • Fig. 24 is a plan view of said group switch.
  • Fig. 25 is a sectional view taken as on line 25-25 in Fig. 23.
  • the selecting and posting apparatus of the present invention is as disclosed dependent in its operation upon the reception of both temporarily continuous and rapidly varying flows of electric current by the apparatus, and comprises mechanisms some of which are responsive in the performance of their functions to rapidly varying current flow and others of which are responsive only to temporarily continuous current flow.
  • our invention contemplates the assembly in operative relation to each other, of an instrument for transmitting electrical signals, as for example, to an ordinary ticker, including means for at times emitting temporarily continuous flows of electric current and for at times producing rapid variations in the flow of current, and an apparatus which will be responsive to said temporarily continuous and rapidly varying flows of current and which will operate in synchronism with the said instrument to both select a quotation or other item of information from a group of successively transmitted quotations or items of information and cause the selected quotation or item of information to be posted opposite an appropriately designated stock or other heading.
  • Figs. 1, 3 and 4 we have disclosed a ticker 30, an apparatus 31 having the principles of our invention, an instrument for electrically transmitting signals to the ticker and apparatus, and wiring connections 33 from said instrument to said ticker and apparatus.
  • the instrument 32 for electrically transmitting signals is illustrated in a more or less conventional manner. It may include a rotatable cylinder 34 driven in any suitable manner, as at 35, and key levers 36 each having a shoulder 37 adapted to engage a pin 38 upon the cylinder when the key lever is depressed, as when actually sending a signal, to stop the rotation of the cylinder. Any convenient arrangement (not necessary to be dis closed) may be utilized to release the pin from the shoulder, or otherwise allow the cylinder to advance, after each signal is transmitted and before the key levers are released to be returned to their normal or elevated positions, as by a coil sprin 39 attached to each key lever and supported y a fixed part of the instrument.
  • Each pin 38 has a predetermined relation to all of the other pins upon the cylinder and to its corresponding key lever so that when the cylinder is released from a key lever the vsaid cylinder will rotate a predetermined distance before again being stopped by the next selected key lever.
  • a dial 40 rotatable with the cylinder 34 has a surface including a circumferential contact portion 41 continuously wiped by a contact 42 as the dial rotates, and uniformly spaced apart contact portions 43 intermittently wiped b a contact 44 as said dial advances, there being a contact portion 43 for each key lever 36, and hence corresponding to each signal to be electrically transmitted by the instrument 32.
  • a wire 45 leading from the contact 42 connects with abattery 46 which is grounded as shown, and a wire 47 leading from the contact 44 connects with the apparatus 31.
  • tion 43 would correspond to a different letter character when the shift-to-letters key lever was in operative position, and would cor-' respond to a difi'erent number character when the shift-to-numbers key lever was in operative position. That is to say, the group of key levers, excepting the end levers, would be set up to transmit one set of, characters when the shift-to-letters key lever was operative and a different set of characters when the shift-to-numbers key lever was opera-- tive. In either event, the corresponding contact portion 43 is opposite the contact 44 at the time the intended signal is transmitted and a.
  • the contact 44 wipes over a predetermined number of contact portions 43 corresponding to the distance through which the cylinder 34 is required to be rotated from its position at the time the shift-to-letters or to numbers is made, until stopped by the next selected key lever, to thus produce a number of rapid variations in the flow of current equal to the number of spaces between the contact portions 43 passed over, corresponding to the letter or number spaces through which the cylinder 34 is rotated.
  • the apparatus 31 includes mechanism responsive to the temporarily continuous flows of current from the instrument 32 for posting or recording characters corresponding to the signals transmitted by said lnstrument, and also 1ncludes mechanlsm, which operates 1n syn- .chronism with the dial 40, responsive to the temporarily continuous flows of current and r to the rapid variations in the flow of current from the instrument, to select the said character to be posted or recorded.
  • the mechanism of said apparatus which is responsive in the performance of its func-' tions to the temporarily continuous flows of current and to the rapid variations in the flow of current is caused to operate in svn chronism with the movements of said dial 40 in order that a character to be posted or recorded will have reached its proper location when the corresponding contact portion 43 becomes positioned at the contact 44, and in order that the temporarily continuous flow of current occurring at this time can cause the mechanism responsive to the temporarily continuous'fiows of current to post or record the said character.
  • the apparatus 31 (Fig. 4) includes a mag net 48 with which the lead wire 47 connects,- a lead wire 49' extending from said magnet 48 switch 53 in the circuit A to close and open with each rapid variation of current at said instrument, while the magnet is so constructed that its armatures 54 do not respond to the rapid variations of current but I only act to cause the switches 55 in the circuit B to close when the rapid variations cease and a temporarily continuous current flows, the said magnet 50 releasing its armatures and thus allowing the switches 55 to open when temporarily continuous current flow ceases and rapidly varying current flow is resumed.
  • the circuit A may include a magnet 56 cooperating with a coil spring 57 to operate an escapcment lever 58.
  • This escapement lever controls the rotation of a toothed wheel 59 which is keyed to a shaft 60, said shaft being rotated, when not prevented from rotating by engagement of the escapement lever with the toothed wheel, by means of a suitably driven worm 61 engaging a worm wheel 62 freely mounted upon said shaft and fixedly carrying a friction disc 63 yieldably engaging a similar friction disc 64 fixed to the shaft as at 65.
  • the shaft may be mounted in a support 66 in any suitable manner, as indicated at 67 in Fig. 7.
  • a selecting dial 68 supported upon the frame contains contact units 69 each corresponding'to a single letter, number, or otherthem to each other.
  • circuit B traced from the battery 74 by lead wire 75 to point 265, thence by a lead wire 254 through lower switch 55, thence by a lead wire 89 to magnet 87 for controlling group switch 88, thence by a lead wire 86 to lower movable contact arm 85 of switch 84 for controlling the secondary selector, thence to lower fixed contact arm 83 of said switch 84, thence by a lead wire 82 to point 189, thence by a lead wire 140 to upper switch 55, and thence by lead wires 90 and 77 back to the battery.
  • the making of circuit B also makes a circuit including a magnet for controlling a rectifying device 81, which circuit and rectifying device will be hereinafter described.
  • the apparatus incorporates a plurality of tumblers 96, one for each stock or heading opposite which a quotation or item of information is adapted to be posted, and each tumbler controls an electric circuit leading to a printing mechanism, one for each of said stocks or headings, of a printing unit presently to be described.
  • the apparatus also incorporates a plurality of groups of keys 95, there being a key group under each of the arms of the tumblers 96, and each key of each group is operated by a magnet 94 controlled by a circuit such as the circuit D which is adapted to operate the group one key for assisting in the control of the CA tumbler 101.
  • Each tumbler 96 will have as many arms 102 as there are call letters, as, for example, of a stock, in the particular call combination, each group of keys 95 may desirably include twenty-six keys, one for each letter of the alphabet, and the arrangement will be such that no tumbler can be dropped to close its corresponding printing mechanism circuit until a notch in the proper key under each of its arms has been moved into alignment with the tumbler.
  • each key 95 of each group are supported to he slid horizontally and are guided in any suitable manner,as indicated at 103, and notches 104 in the keys normally align-with all of the tumblers except the particular tumbler controlled by a key, which includes a notch 105 situated at one side of the tumbler.
  • the tumblers are guided, as indicated at 106, for vertical movement.
  • a coil spring 107 normally holds a support or armature 108 in elevated position against the lower extrenr ities of the tumblers to insure that each tumbler will normally remain in elevated position.
  • the notches of the keys are so spaced that when a key moves into alignment with its'corresponding. tumbler or tumblers, all other tumblers will be out of alignmentwith the notches of the key which has moved.
  • magnet 87 releases pole piece 114, and coil spring 119, attached to said pole piece as at 120 and to an. upright 121 as at 122, causes a'pawl 123 of said pole piece to push against a tooth of a ratchet 124 fixed upon the short shaft 116 torotate movable contact arm 99 to a position where it engages group-two fixed contact 125.
  • a detent finger 126 pivoted upon upright 121 as at 127 holds the ratchet against the action of-a coil spring'128, at-
  • a stop 130 is for controlling the distance the coil spring 119 can movethe pole piece 114' when released by the magn t 87, as will be understood;
  • the gr up two fixed contact is in all circuits for the second group of keys, which cir- .cuits are similar to circuit D,
  • Temporarily continuous current again flows in the service wires and in circuit B, and also flows in a circuit, designated E, traced from the battery 74via lead wires 75 and 92 to an arm of the contactunit 69 corresponding to the letter' Af thence to the other arm of'said contact unit through Contact bar 72, thence by a leadwire 131 to a magnet 132 (see Fig. 4) of the magnets 94 for operating group-two key 95-assistin in the control of the tumbler, or tumblers, t e second. call letter; of which is A, as for.
  • the CA tumbler has but two arms 102 controlled by keys of two groups of keys 95, a notch 105 of each corresponding key will now be aligned with each arm of said CA tumbler, but all other tumblers will be engaged by flat surfaces of the corresponding keys between the notches 104.
  • the CA tumbler cannot yet drop, however, because it, as well as the other tumblers, is held in elevated poistion by the cooperation of the armature or support 108 and the coil spring 107.
  • the A key of the second group will also include a notch 105 for each stock or heading whose second call letter is A, as will each key of each group have anotch 105 to correspond with each stock or heading having a corresponding call letter.
  • a shift to numbers circuit designated F, is made, the said circuitbeing traced from the battery 74 by a lead wire 135 to a magnet 136, thence by a lead wire 137 to an arm of the contact unit 69 at the position 134, thence to the other arm of said contact unit through contact bar 72, thence by a lead wire' 138 to lead Wire 82, thence by lead wire 82 to point 139, thence by lead wire 140 to upper switch 55, and by lead wires 90 and 77 back to the battery.
  • pole piece 141 suitably pivoted at 142 to be attracted to close a relay switch-143 for controlling the secondary selector.
  • the lower end of pivoted pole piece 141 is adapted to ride over a suitably supported resilient hump 144 when moved to close relay switch 143, whereby the said relay s'witch will remain in closed position until the pivoted pole piece is positively revolved, in a manner to be set forth, to be forcedin direction away from the magnet 136.
  • the free end of a resilient con-
  • tact arm 145 of relay switch 143 is situated in the slotted upper end of the pole piece 141.
  • relay switch 143 makes a circuit, designated G, traced from the battery 74 by lead wire to point 91, thence by a lead wire 146 to said relay switch, thence by a lead wire 147 to a magnet 148, and thence by a lead wire 149 back to the battery.
  • relay switch 143 also makes a circuit, designated H, traced from the battery 74 by lead wire 75 to point 91, thence by lead wire 146 to the relay switch, thence by lead wire 147 to point 150, thence by a lead wire 151 to a magnet 152, and thence by a from lower contact arm 83 of switch 84 and to cause upper movable contact arm 156 to engage upper fixed contact arm 157 of said switch.
  • the contacts 160 and 164 are in electrical connection and the temporarily continuous flow of electricity from the instrument 32 is, evidently, transmitted to the magnets 166 and 168 of the corresponding unit of the printing mechanism.
  • the dial 162 is rotating with the shaft 60 so that the contact 164 intermittently wipes over the spaced apart contact,
  • dial 162 will rotate in synchronism with the contact bar 72 and that when said contact bar has reached its shift to numbers position, the contacts 160 and 164 will be situated at corresponding position upon the contact surface of said dial 162. Assume that the cylinder 34 has been released from its shift to numbers position and the key lever controlling the number 3 has heen d'epressed to allow-said cylinder to rotate until stopped by engagement of the shoulder of the 3 key lever with the corresponding pin on the cylinder.
  • the dial 162 rotatesto cause the contact 164 to intermittently wipe over the spaced apart contact portions 163- to make and break the circuit J a corresponding number of times, as will be evident, and the magnet 166 responds to the rapid variations of current flow to cooperate with a coil spring 176 in bringing the number 3 on a printing wheel 177 to proper printing position, while it is the function of the magnet 168 to accomplish the printing when the dial 162 is brought to rest and the contacts 160 and 164 are in engagement with each other to )roduce a temporarily continuous flow 0 current in the circuit J Referring more particularly to Figs. 14
  • a printing wheel 177 fixed upon a shaft 178 suitably mounted as at 179 to be rotatable in a housing 180 for the printing'wheel unit, and we have disclosed an escapement lever 181 pivotally supported in. the housing as at 182 and suitably connected with the armature 174.
  • the coil spring 176 has one of its ends attached to the escapement lever and its other end attached to a fixed part.
  • the escapement lever controls the rotation of a toothed wheel 183 which is keyed to the shaft 178, said shaft being rotated, when not prevented from 'rotating by engagement of the escapement lever with the toothed wheel, by means of a coil spring 184 about the shaft, the said coil spring being attached at one of its ends 185 to a ratchet wheel 186 rotatably mounted upon said shaft and at its other end 187 to said toothed wheel.
  • the ratchet wheel 1861's rotated at each actuation of the armature 174, to hold the coil spring 184 under tension, by means of pawls 188 pivotally supported upon the armature 174 as at 189 and held in yielding engagement with'teeth at opposite sides of the ratchet, as by an extensible member 190 between said pawls,"tl1e arrangement being such that one of the pawls, the one at the right in Fig. 16, will rotate the ratchet in counter clockwise direction to wind the coil spring 184 when the coil spring 176 acts to withdraw the armature 174 from the magnet 166, and that the other pawl, the one at the left in Fig. 16, will rotate the ratchet in the same direction when said magnet 166 acts to attract its armature against the action of said coil spring 176, the pawl which is not acting to rotate the ratchet sliding over its teeth in a usual manner.
  • the housing 180 also supports a pair of shafts 191 and 192, the former carrying a rotatable reel 193'which supports tape 194 fed to the printing wheel, and the latter carrying a rotatable" take-up reel 1% which eventually receives all of the printed tape.
  • Thecourse of the tape 194 from the reel 193 is about a printing element 196 pivoted as at 197 in an ropening 198 in the housing adjacent the printing wheel, across a face 199 of said 'houslng, over a roller 200 suitably mounted 111 an opening 201 of said housing, thence over a tensione'd roller 202, and thence to the reel 195.
  • the printing element 196 is connected with the armature 175 of the magnet 16 8, and when said armature is attracted by said magnet, said printing element is forced against the printing wheel to thus cause a portion of the tape to received an imprint of a character closed morevclearly in Fig. 14, the long arm 205 includes aslot 206 receiving the free end of the armature 175.
  • a coil spring 207 attached to the housing as at'208 and to the free end of the short arm 204 as at'209 normally urges the long arm 205 away from the magnet 168, but when said magnet is energized to attract the armature 175, said armature, by reason of its engagement in the slot 206, causes said long arm to be moved toward the magnet.
  • coil spring 207 Upon release of armature 175 from thelmagnet, coil spring 207 promptly moves the long arm 205 and the armature away from said magnet, thus removing the printing element 196 from the printing wheel and at the same time causing a feeding pad 210, pivot-ally supported upon the upper end of longarm 205 as at 211, to firmly engage against the portion ofthe tape adjacent the inner faceof the printing element, tograsp the. tape between said pad and element and cause it to be fed ahead with the 'pad as this slides relatively to the printing element.
  • the tensioned roller 202'f is conveniently rotatably supported upon the long arm, 215 of a lever, pivoted intermediate its ends, as
  • a lug 221 upon said lever adjacent its axis is adapted to engage a resilient movable contact arm 222 of a switch 223, and the arrangement is such that when the tape is under no tension, the coil spring 218 will act to allow said movable contact arm 222 to engage a fixed contact arm 224 of said switch 223, but when said tape is ten sioned, it causes the long arm 215 to be swung against the action of said coil-spring 218, to break contact between said arms 222 and 224, to thus open said switch 223.
  • the switch 223 when closed is in an electric circuit, designated K, also including a magnet 225suitably supported in the housing 180, said circuit K being traced from the battery 74- by lead wire 135 to'point 158, thence by lead wire 159 to contact 160, thence to contact 164, thence by lead wire 165 to a lead wire 226, thence through magnet 225, thence by a lead wire 227 to switch 223, thence by a lead wire 228 to lead wire 77, and back to the battery.
  • K an electric circuit, designated K, also including a magnet 225suitably supported in the housing 180, said circuit K being traced from the battery 74- by lead wire 135 to'point 158, thence by lead wire 159 to contact 160, thence to contact 164, thence by lead wire 165 to a lead wire 226, thence through magnet 225, thence by a lead wire 227 to switch 223, thence by a lead wire 228 to lead wire 77, and back to the battery.
  • the magnet 225 is constructed to respond to the rapid variations in current flow when the dial 162 is rotating beneath the contact 164, as already set forth, to intermittently attract an armature 229 pivoted upon the housing as at 230, and a coil spring 231, at tached to the housing at 232 and to the armature at 233 (see Fig. 19) is adapted to withdraw said armature from said magnet each time the circuit K is broken.
  • a pawl or link 234 pivoted upon the armature 229, as at 235, includes a free pointed end adapted to engage teeth of a ratchet 236 rotatable upon the shaft 192, and a coil spring 237 about said shaft and attached to said ratchet as at 238 and to the reel 195 as at 239 provides a resilient connection between the ratchet and reel.
  • magnet 246 attracts pole piece 141 and causes the lower end of said pole piece to ride over hump 144, so that relay switch 143 will remain open until magnet 136 is again energized, as will be evident.
  • the opening of the said relay switch 143 deenergizes magnet 152 and allows coil spring 107 to elevate the CA tumbler, and also .deenergizes magnet .148 and allows contacts 156 and 157 of switch 84 to separate and contacts 83 and 85 of said switch 84 to come together.
  • circuit L also produces a circuit, designated M, including magnet 249, the said circuit M being traced from the battery 74 by lead Wire 75 to point 253, thence by lead wire 252 to magnet 249, thence by lead wire 251 to point 250, thence by a lead wire 247 to an arm of contact unit 69 at the shift to letters position upon the dial 68, thence through the contact bar 72 to the other arm of said contact unit, thence by a lead wire 248 to lead wire 138, thence by lead wire 138 to lead wire 82, and thence by lead wire 82, lead wire140, upper switch 55, lead wire 90, and lead wire 77 back to the battery.
  • M including magnet 249
  • Energization of magnet 249 causes armature 255, suitably pivoted at 256, to be attracted, and an arm 257 of said armature, (there being an armature 255 with arm 257 for each group of keys 95), to return keys which were actuated by magnets 94, as, for example, the C key in group one and the A key-in group two, to their normal positions.
  • each corresponding magnet 94 was deenergized when the contact bar 72 was removed from the contact unit to break the circuit, such as the circuit *D, which energized the corresponding magnet 94, so that'said magnets 94 will offer no interference to the action of magnets 249 returning the actuated key 95 in each group to normal position.
  • circuits L and M also completes another circuit, vdesignated N, having a magnet 258, the said circuit N being traced from the battery 74 by lead wire 75 to point 266, thence by a lead wire 261 to magnet 258, thence by a'lead wire 260 to point 259, thence by lead wire 247 to an arm of contact unit-69 at the shift to letters position upon the dial 68, thence through the contact bar 7 to the other arm of said contact unit, thence by lead wire 248 to lead wire 138, thence by lead wire 138 to lead wire 82, and thence by lead wire 82, lead wire 140, upper switch 55, lead wire 90, and lead wire 77 back to the battery.
  • Energization of magnet 258 causes armature-262, suitably pivoted at 263, to be attracted, and an arm 264 of said armature to slide the shaft 116 in its bearings to release the ratchet 124 from the pawl 123, to thus allow coil spring 128 to rotate movable contact arm 99 of switch 88 back to position against stop 129, whereby-said arm 99 will engage group one fixed contact 98 when the mechanism ad vances from the shift to letters position to deenergize the magnet 258 and thus allow spring 128 to longitudinally slide the shaft 116 back to its normal position. See Figs. 4 and 23.
  • each stock will have its name preferably permanently located on a board, such as the board 243 in Fig. 6, and the printing mechanism circuits will be duplicated to include a printing unit of the general construction as described for each stock.
  • the tape for each printing unit will be arranged in about the manner as disclosed in Figs. 6 and 14, so that each quotation as posted, or directly thereafter, will desirably be opposite the heading designating the stock to which the quotation relates.
  • the transmitting instrument and the selecting and posting apparatus of Figs. 2 and 5 are of about the same construction as the instrument and apparatus hereinbefore fully described, except that whereas the transmitting instrument of Fig. 1 is adapted to shift from letters to numbers and from numbers to letters only at predetermined points, one for letters and one for numbers, the transmitting instrument of Fig. 2 is adapted to shift from letters to numbers and from numbers to letters at any time, as, for example, before or after the transmission of each and every character.
  • the variant form of apparatus of Fig. 5 includes equivalents of. all of the circuits as in Fig. 4, but incorporates an ar- I rangement synchronizing thepresent form of apparatus with the transmitting instrument of Fig. 2. As disclosed.
  • said transmitting instrument has a switch 267 including a resilient movable contact arm 268 at the opposite sides of and in spaced and insulated relation to which fixed contact arms, designated 269 and 27 0, respectively, are situated.
  • Movable contact arm 268 is connected by a lead wire 271 to a polarized magnet 272
  • fixed contact arm 269 is connected by a lead Wire 273 to the minus side of a battery 274
  • fixed contact arm 270 is connected by a lead wire 275 to the plus side of the battery 46.
  • a suitable shifting device includes a shift bar 276 having its opposite ends pivoted to hell crank levers 277 which are in turn pivotally supported in convenient manner as at 278. Shift key levels 36, one at each end of the group of key levers, are adapted.
  • a suitably supported resilient member 279 includes a hump 280 over which a lug 281 upon the shift bar is adapted to ride in such maner that said shift bar will remain at either position to which shifted until intentionally shifted to the other position, as will be understood.
  • a slot 281 in the shift bar 276 receives the free end of the movable contact arm 268, so that when said shift bar is moved toward the left, as it is shown, the contact arms 268 and 269 will be in engagement to cause a current to flow from battery 274 by lead wire 273, contact arm 269,
  • the apparatus 31 of Figure 5 has a switch 282 including a resilient movable contact arm 283 at the opposite sides of and in spaced and insulated relation to which fixed contact arms, designated 284 and 285, respectively, are situated.
  • Armature 286 of polarized magnet 272 includes a slot 287 receiving the free end of movable contact arm 283. The arrangement is such that when the shift to numbers key lever 36 is operative, the armature 286 will be actuated toward the left to cause the contact arms 283 and 284 to engage each other, and when the shift to letters key lever is operative, said armature will be actuated toward the right to cause the contact arms 283 and 285 to engage each other.
  • said contact arms 283 and 284 engage, a shift to numbers circuit, the equivalent of the circuit in Figure 4 for a similar purpose, is made, the said circuit being traced from the battery 74 by lead wire 135 to point 244, thence through magnet 136, thence by lead wire 137' to contact arm 284, thence throughcontact arm 283, and thence by lead wire 138' and lead wire 77 back to the battery.
  • Energization of magnet 136 will perform the functions as hereinbefore fully described, and said magnet will remain energized until the shift to letters key lever of the transmitting instrument is operated, as will be obvious.

Description

Feb. 9, 1932. 1.. L. RUSTAD ET AL 1,344,686
APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 11 Sheets-Sheet 1 Z 42 EEEEEEEEMEM H 3555mm? 2 8 w gqq v 40 Jul/anions 100/5 Z. EUJTA 0 7 2 V/cTOEEfXTE'O/Vl 5%, cm M a zf/TTOBNE K9 Feb. 9, 1932. 1.. L. RUSTAD ET AL 1,844,636
APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 11 Sheets-Sheet 2 Feb. 9, 1932. L. 1.. RUSTAD ET AL APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 11Sheecs-Sheet 5 fm amfom LOU/J" LEUFTAD l//c To/ef Ex TKO/V,"
Feb. 9, 1932. L. L. RUSTAD ET AL I 1,344,636
APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 11 Sheets-Sheet 4.
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GEN. ML 67 aa aa GEhLMO- 82 6 HOWE 68 HAVANA LEHIGH MAYTAG NATloN'L OTIS RADIO Ree M.
Feb. 9, 1932. 1.. L. RUSTAD ET AL 1,844,686
APPARATUS FOR RECORDING ELEGTRICALLY TRANSMITTED SIGNALS Filed Mz arch 1, 1929 1,1Sheets-Sheet 5 w Sag o m N w m/en tors LOUISLLPUSTAD Wcroe t. Ex TPOM gab $14 WM Feb. 9, 1932. r 1.. L. RUSTAD ET AL 1,344,686
APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 11Sheets-Sheet 6 m VQDOQJSHIU! no SlnAMXAZ Feb. 9, 1932. L. L. RUSTAD ET AL APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1 929 11 Sheets-Sheet 7 fnmnza fir Lou/w L. EUJTA D were]? If Ex TEOM L. L. RUSTAD ET AL Feb. 9, 1932.
APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS 11 Sheets-Sheet 8 Filed March 1, 192 9 ATToAA/EYJ Feb. 9, 1932. 1.. L. RUSTAD ET AL APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 ll Sheets-Sheet bNN fnmnl ors Lou/s L fair/4o Wcroef. fXTEO/l l SmN N w a om m9 Feb. 9, 1932." L. L. RUSTAD ET AL 1,344,636
APPARATUSFORRECORDING ELECTRICALLY TRANSMITTED SIGNALS Filed March 1, 1929 1 1 Sheets-Sheet 10 Lou/s L. Eusmo l/lcrofi f. fXTEO/VI Feb. 9, 1932. 1.. LfRusTAD ET AL 1,344,686
APPARATUS FOR RECORDING ELECTRICALLY TRANSMITTED SIGNALS med March 1, 1929 11 Sheets-Sheet 11 In van/for? I30 lou/sL/fiiwmo V/c TOE E. EXTFOM 94 (KL/Mt Arroz/vs Kr Patented Feb. 9, 1932 UNITED. STTES v PATENT OFFICE LOUIS L. RUSTAD D VICTOR E. EXTROM, OF MINNEAPOLIS, MINNESOTA, ASSIGNORS TO TELEGRAPHY IMPROVEMENTS COMPANY, OF MINNEAPOLIS, MINNESOTA, A COR- PORATION OF MINNESOTA APPARATUS FOR RECORDING ELECTBICALLY TRANSMITTER SIGNALS Application inea March 1,
This invention relates to an apparatus adapted to receive electrically transmitted signals and to transform such signals into visible, intelligible and permanent form, and the invention has reference to an apparatus which may be used for various purposes, but which is more partcularly adapted to the purpose of posting stock market quotations, as received at a brokers oflice, opposite the respective stocks on a board which may be similar in general appearance to the blackboards now in common use. p
A system now in vogue of receiving and publishing stock-market quotations employs an electrical printing device known as a ticker which records the incoming signals on a tape or narrow ribbon of paper, this paper tape usually being torn oil as it issues from the ticker and the abbrev1ated quotations on the tape being subsequently written on a large blackboard opposite the names of the corresponding stocks.
An object of the present invention is to provide an apparatus for selecting individual quotations or items of information from a group of quotations or items of information successively signalled electrically and for posting each separate quotation or item of information selected opposite an approprlately designated stock or heading to which the sald selected quotation or item of informatlonrelates.
. A further object is to provide an apparatus for selecting stock-market quotations as received at a hrokers oflice, and for posting each selected quotation upon a ticker board op- 'posite a designated stock to which the selected quotation relates.
A still further object is to provide an apparatus of the present character wherein will be incorporated novel and improved features and characteristics of construction designed to render the apparatus efficient, dependable and satisfactory in the performance of its several i ntcnded functions.
Other objects and advantages of the inven- 1929. Serial No. 343,806.
is meant in no way in a limiting sense; changes in details of construction and arrangement of parts being permissible so long as within the spirit of the invention and the scope of the claims which follow.
In the accompanying drawings forininga part of this specification,
Fig. 1 is a diagrammatic view showing a ticker, an apparatus having the features of the invention, so much of an instrument for electrically transmitting signals to the ticker and apparatus as is necessary to a. full understanding of our invention, and wiring connections from said instrument to said ticker and apparatus;
Fig. 2 is a diagrammatic view corresponding generally with the disclosure of Fig. 1, but showing an apparatus of variant form made in accordance with the invention designed to be responsive to the modified type of sending instrument illustrated;
Fig. 3 is a detail view disclosing a manner in which a lever bar in Fig. 1 or Fig. 2 can be depressed to stop the rotation of the cylinder of the sending instrument;
Fig. 4 is a diagrammatic view detailing the improved apparatus of Fig. 1 and showing the relation of said apparatus to the sending instrument and the ticker;
Fig. 5 isa diagrammatic view detailing the improved apparatus of Fig. 2 and showing the relation of said apparatus to the sending instrument and the ticker;
Fig. 6 is a front elevational View of a board for posting stock-market quotations;
Fig. 7 is a vertical longitudinal sectional view of the mainselecting mechanism of the apparatus taken as on line 77 in Fig. 8
Fig. 8 is a horizontal sectional view taken as on line 8-8 in Fig. 7;
Fig. 9 is a vertical transverse sectional view taken as on line 99 in Fig. 8;
Fig. 10 is a fragmentary sectional view corresponding with the disclosure of Fig. 9, but showing a tumbler as having dropped to close the printing unit or number circuit.
Fig. 11 is a fragmentary sectional view detailing keys and tumblers, disclosing all of the tumblers in elevated position;
Fig. 12 is a view similar to Fig. 11, but disclosing the keys actuated to allow a tumbler to fall to close the printing unit or number circuit, the said tumbler being shown as havin dropped;
Fig. 13 is a sectional View taken as on line 13-13 in Fig. 7 detailing the rectifying device of the apparatus;
Fig. 14 is a longitudinal sectional view detailing a printing unit of the apparatus;
Fig. 15 is an enlarged sectional view taken as on line 15-15 in Fig. 14;
Fig. 16 is a sectional view taken as on line 1616 in Fig. 15;
Fig. 17 is a detail view of the feed for the printing unit tape;
Fig. 18 is a detail view of the printing wheel;
Fig. 19 is a detail view of the device for taking up slack in the printing unit tape;
Fig. 20 is a sectional view taken as on line 202() in Fig. 19;
Fig. 21 is a detail view of the switch for controlling the secondary selector;
Fig. 22 is a detail view of the switch for controlling the switch just mentioned and for also controlling the drop and elevation of the tumblers;
Fig. 23 is an elevational view detailing the group switch of the apparatus;
Fig. 24 is a plan view of said group switch; and
Fig. 25 is a sectional view taken as on line 25-25 in Fig. 23.
The selecting and posting apparatus of the present invention is as disclosed dependent in its operation upon the reception of both temporarily continuous and rapidly varying flows of electric current by the apparatus, and comprises mechanisms some of which are responsive in the performance of their functions to rapidly varying current flow and others of which are responsive only to temporarily continuous current flow.
Speaking generally, our invention contemplates the assembly in operative relation to each other, of an instrument for transmitting electrical signals, as for example, to an ordinary ticker, including means for at times emitting temporarily continuous flows of electric current and for at times producing rapid variations in the flow of current, and an apparatus which will be responsive to said temporarily continuous and rapidly varying flows of current and which will operate in synchronism with the said instrument to both select a quotation or other item of information from a group of successively transmitted quotations or items of information and cause the selected quotation or item of information to be posted opposite an appropriately designated stock or other heading.
In Figs. 1, 3 and 4 we have disclosed a ticker 30, an apparatus 31 having the principles of our invention, an instrument for electrically transmitting signals to the ticker and apparatus, and wiring connections 33 from said instrument to said ticker and apparatus.
The instrument 32 for electrically transmitting signals is illustrated in a more or less conventional manner. It may include a rotatable cylinder 34 driven in any suitable manner, as at 35, and key levers 36 each having a shoulder 37 adapted to engage a pin 38 upon the cylinder when the key lever is depressed, as when actually sending a signal, to stop the rotation of the cylinder. Any convenient arrangement (not necessary to be dis closed) may be utilized to release the pin from the shoulder, or otherwise allow the cylinder to advance, after each signal is transmitted and before the key levers are released to be returned to their normal or elevated positions, as by a coil sprin 39 attached to each key lever and suported y a fixed part of the instrument. Each pin 38 has a predetermined relation to all of the other pins upon the cylinder and to its corresponding key lever so that when the cylinder is released from a key lever the vsaid cylinder will rotate a predetermined distance before again being stopped by the next selected key lever. A dial 40 rotatable with the cylinder 34 has a surface including a circumferential contact portion 41 continuously wiped by a contact 42 as the dial rotates, and uniformly spaced apart contact portions 43 intermittently wiped b a contact 44 as said dial advances, there being a contact portion 43 for each key lever 36, and hence corresponding to each signal to be electrically transmitted by the instrument 32. A wire 45 leading from the contact 42 connects with abattery 46 which is grounded as shown, and a wire 47 leading from the contact 44 connects with the apparatus 31. When a signal is being transmitted,
the cylinder 34 being in stationary position to numbers, in which event each contact por-,
tion 43 would correspond to a different letter character when the shift-to-letters key lever was in operative position, and would cor-' respond to a difi'erent number character when the shift-to-numbers key lever was in operative position. That is to say, the group of key levers, excepting the end levers, would be set up to transmit one set of, characters when the shift-to-letters key lever was operative and a different set of characters when the shift-to-numbers key lever was opera-- tive. In either event, the corresponding contact portion 43 is opposite the contact 44 at the time the intended signal is transmitted and a. temporarily continuous flow of electricity is being emitted by the apparatus, and while the said contact portion 43 is reaching its proper position, the contact 44 wipes over a predetermined number of contact portions 43 corresponding to the distance through which the cylinder 34 is required to be rotated from its position at the time the shift-to-letters or to numbers is made, until stopped by the next selected key lever, to thus produce a number of rapid variations in the flow of current equal to the number of spaces between the contact portions 43 passed over, corresponding to the letter or number spaces through which the cylinder 34 is rotated. The apparatus 31 includes mechanism responsive to the temporarily continuous flows of current from the instrument 32 for posting or recording characters corresponding to the signals transmitted by said lnstrument, and also 1ncludes mechanlsm, which operates 1n syn- .chronism with the dial 40, responsive to the temporarily continuous flows of current and r to the rapid variations in the flow of current from the instrument, to select the said character to be posted or recorded. In other words the mechanism of said apparatus which is responsive in the performance of its func-' tions to the temporarily continuous flows of current and to the rapid variations in the flow of current is caused to operate in svn chronism with the movements of said dial 40 in order that a character to be posted or recorded will have reached its proper location when the corresponding contact portion 43 becomes positioned at the contact 44, and in order that the temporarily continuous flow of current occurring at this time can cause the mechanism responsive to the temporarily continuous'fiows of current to post or record the said character.
While we have disclosed an instrument for electrically transmitting signals which contemplates rapid variations in current flow.
temporarily continuous current flows. and
eriods; or intervals between the mentioned flows of current when the instrument is transmitting no current to the apparatus. it is here called to attention that thevariations in current flow at the sending instrument for 4 operating our apparatus could be between (what mav be termed) a maximum voltage capable of producing a temporarily continuous flow of current or a rapidly varying flow of current, and (what may be termed) a operate the apparatus.
The apparatus 31 (Fig. 4) includes a mag net 48 with which the lead wire 47 connects,- a lead wire 49' extending from said magnet 48 switch 53 in the circuit A to close and open with each rapid variation of current at said instrument, while the magnet is so constructed that its armatures 54 do not respond to the rapid variations of current but I only act to cause the switches 55 in the circuit B to close when the rapid variations cease and a temporarily continuous current flows, the said magnet 50 releasing its armatures and thus allowing the switches 55 to open when temporarily continuous current flow ceases and rapidly varying current flow is resumed. The circuit A may include a magnet 56 cooperating with a coil spring 57 to operate an escapcment lever 58. This escapement lever controls the rotation of a toothed wheel 59 which is keyed to a shaft 60, said shaft being rotated, when not prevented from rotating by engagement of the escapement lever with the toothed wheel, by means of a suitably driven worm 61 engaging a worm wheel 62 freely mounted upon said shaft and fixedly carrying a friction disc 63 yieldably engaging a similar friction disc 64 fixed to the shaft as at 65. The shaft may be mounted in a support 66 in any suitable manner, as indicated at 67 in Fig. 7.
A selecting dial 68 supported upon the frame contains contact units 69 each corresponding'to a single letter, number, or otherthem to each other.
Suppose, for example, that a quotation or item of information has just been selected and posted, that the shift-to-letters key lever of the instrument 32 has ,been operated so that the contact bar 72 is at the point as indicated in Fig. 4, correspondingto the shiftto-letters position of the transmitting instrument, and that the apparatus is ready to begin selecting a new series of characters, which are CA 31. Upon rotation of the cyl- I inder 34 away from its shift-to-letters posiminimum voltage, of insufficient capacity to responding with the letter C is now depressed and thecylinder 34 rotates through three letter spaces until stopped by engagement of the shoulder of said key lever with the pin 38 on said cylinder corresponding with the letter C. This will, evidently, cause three rapid variations of current at the sending instrument, and each of these variations will be responded to by magnet 48 to cause the switch 53, and hence the circuit A having magnet 56, to be closed and opened three times. The course of the circuit A is as disclosed from a battery 74 via a lead wire 75, through the switch 53, a lead wire 76, the magnet 56, and a lead wire 77 back to the battery. The magnet 56 and coil spring 57 will cooperate to release the toothed wheel 59 one tooth for each make and break of the circuit A, and consequently, the contact bar 72 will be revolved through three letter spaces, to engage between the spaced arms of the contact unit 69 corresponding with the letter C, which is as shown in Fig. 4 just three character or letter spaces from the shift-to-letters contact unit 69.
A contact portion 43 now engaging with the contact 44, a continuous current temporarily flows in the service wires, holding switch 53 closed and actuating armatures 54 to close switches 55, thus making circuit B, traced from the battery 74 by lead wire 75 to point 265, thence by a lead wire 254 through lower switch 55, thence by a lead wire 89 to magnet 87 for controlling group switch 88, thence by a lead wire 86 to lower movable contact arm 85 of switch 84 for controlling the secondary selector, thence to lower fixed contact arm 83 of said switch 84, thence by a lead wire 82 to point 189, thence by a lead wire 140 to upper switch 55, and thence by lead wires 90 and 77 back to the battery. The making of circuit B also makes a circuit including a magnet for controlling a rectifying device 81, which circuit and rectifying device will be hereinafter described.
The engagement of the contact bar 7 2 with the spaced arms 70 of the contact unit 69 corresponding with the letter C completes a circuit, designated D, traced from the battery 74 by lead wire 75 to the point 91, thence by a lead wire 92 to an arm of said contact unit 69, thence to the other arm of said contact unit through contact bar 7 2, thence by a lead wire 93 to a magnet 94 for operating a group-one key 95 assisting in the control of a tumbler 96, thence by alead wire 97 to group one fixed contact 98 of group switch 88, thence through movable contact arm 99 of said group switch which is at this time in engagement with fixed contact 98, thence by a lead wire 100 to lead wire 86 of circuit B, and back to the battery 74 via lower movable contact arm 85, lower fixed contact arm 83, lead wire 82, lead wire 140, upper switch 55,
lead wire 90, and lead Wire 77 back to the battery.
The apparatus incorporates a plurality of tumblers 96, one for each stock or heading opposite which a quotation or item of information is adapted to be posted, and each tumbler controls an electric circuit leading to a printing mechanism, one for each of said stocks or headings, of a printing unit presently to be described. The apparatus also incorporates a plurality of groups of keys 95, there being a key group under each of the arms of the tumblers 96, and each key of each group is operated by a magnet 94 controlled by a circuit such as the circuit D which is adapted to operate the group one key for assisting in the control of the CA tumbler 101.
Each tumbler 96 will have as many arms 102 as there are call letters, as, for example, of a stock, in the particular call combination, each group of keys 95 may desirably include twenty-six keys, one for each letter of the alphabet, and the arrangement will be such that no tumbler can be dropped to close its corresponding printing mechanism circuit until a notch in the proper key under each of its arms has been moved into alignment with the tumbler.
As disclosed, the opposite ends of each key 95 of each group are supported to he slid horizontally and are guided in any suitable manner,as indicated at 103, and notches 104 in the keys normally align-with all of the tumblers except the particular tumbler controlled by a key, which includes a notch 105 situated at one side of the tumbler. The tumblers are guided, as indicated at 106, for vertical movement. A coil spring 107 normally holds a support or armature 108 in elevated position against the lower extrenr ities of the tumblers to insure that each tumbler will normally remain in elevated position. 'The notches of the keys are so spaced that when a key moves into alignment with its'corresponding. tumbler or tumblers, all other tumblers will be out of alignmentwith the notches of the key which has moved.
When the circuit D, having the magnet 94 for operating the group one key assisting in the control of the CA tumbler 101, is closed by contact bar 7 2 engaging between the arms 70 of the contact unit 69 corresponding to the letter C as above described, the said magnet attracts pivoted pole piece 109 turning shaft 110, suitably mounted as at 111, having cam 112, and the cam engages a lug 113 upon the corresponding key 95, sliding said key end-' wise to bring its notch 105 into alignment with the upper arm of the corresponding tumbler 101. There may be other stocks or headings beginning with the letter C, and, if so, the group one key assisting in the control of the CA tumbler will include a notch 105 for each of such stocks or headings.
, nally slidable in a conveniently supported frame 118 which carries the magnet 87 'and the pole piece 114. When the cylinder 34 is released and commences to advance to rotate the dial. 40, to thus break circuit D and cause the resumption of rapidly varying current flow in the same manner as already described, magnet 87 releases pole piece 114, and coil spring 119, attached to said pole piece as at 120 and to an. upright 121 as at 122, causes a'pawl 123 of said pole piece to push against a tooth of a ratchet 124 fixed upon the short shaft 116 torotate movable contact arm 99 to a position where it engages group-two fixed contact 125. A detent finger 126 pivoted upon upright 121 as at 127 holds the ratchet against the action of-a coil spring'128, at-
Jtached to the frame and to the short shaft,
tending to urge the pole piece back to its position of engagement with the fixedcontact 98, or against the stop 129. A stop 130 is for controlling the distance the coil spring 119 can movethe pole piece 114' when released by the magn t 87, as will be understood; I The gr up two fixed contact is in all circuits for the second group of keys, which cir- .cuits are similar to circuit D,
Supposingthat upon release of the 0 key leverof the transmitting instrument-that the next key lever depressed corresponds to A, the dial 40rotat'es until the A lever stops its corresponding pin 38, and the rapid ly varying flow of current causes the cpntact bar .72 to advance a corresponding distance .to stop at the contact unit 69 correspondingto A upon the selecting dial 68. Temporarily continuous current again flows in the service wires and in circuit B, and also flows in a circuit, designated E, traced from the battery 74via lead wires 75 and 92 to an arm of the contactunit 69 corresponding to the letter' Af thence to the other arm of'said contact unit through Contact bar 72, thence by a leadwire 131 to a magnet 132 (see Fig. 4) of the magnets 94 for operating group-two key 95-assistin in the control of the tumbler, or tumblers, t e second. call letter; of which is A, as for. example the CAltumbler as disclosed, thence by a lead wire 133to group two fixed contact 125 ,ofgroup switch 88,'th ence through movable contact arm 99 of said group switch which is at this .time in engagement with fixed contact 125, and thence back to the battery via lead wire 100, lead wire 86, lower movable contact arm-85, lower fixed contact arm 83, lead wire 82, lead wire 140, upper switch ,55, lead wire 90, and lead wire,7 7
Provided the CA tumbler has but two arms 102 controlled by keys of two groups of keys 95, a notch 105 of each corresponding key will now be aligned with each arm of said CA tumbler, but all other tumblers will be engaged by flat surfaces of the corresponding keys between the notches 104. The CA tumbler cannot yet drop, however, because it, as well as the other tumblers, is held in elevated poistion by the cooperation of the armature or support 108 and the coil spring 107.
The A key of the second group will also include a notch 105 for each stock or heading whose second call letter is A, as will each key of each group have anotch 105 to correspond with each stock or heading having a corresponding call letter.
Assuming that a key lever upon the transmitting instrument is now depressed to cause the contact bar 72 to be advanced, in the manner as before set forth, and stopped at the contact unit 69 constituting the shift-to-numbers position 134 on the dial 38, again causing a temporarily continuous flow of current, a shift to numbers circuit, designated F, is made, the said circuitbeing traced from the battery 74 by a lead wire 135 to a magnet 136, thence by a lead wire 137 to an arm of the contact unit 69 at the position 134, thence to the other arm of said contact unit through contact bar 72, thence by a lead wire' 138 to lead Wire 82, thence by lead wire 82 to point 139, thence by lead wire 140 to upper switch 55, and by lead wires 90 and 77 back to the battery. t v
The energizing of magnet 136 causes pole piece 141, suitably pivoted at 142 to be attracted to close a relay switch-143 for controlling the secondary selector. As disclosed more clearly in Fig. 22, the lower end of pivoted pole piece 141 is adapted to ride over a suitably supported resilient hump 144 when moved to close relay switch 143, whereby the said relay s'witch will remain in closed position until the pivoted pole piece is positively revolved, in a manner to be set forth, to be forcedin direction away from the magnet 136. As shown, the free end of a resilient con-,
tact arm 145 of relay switch 143 is situated in the slotted upper end of the pole piece 141.
The closing of, relay switch 143 makes a circuit, designated G, traced from the battery 74 by lead wire to point 91, thence by a lead wire 146 to said relay switch, thence by a lead wire 147 to a magnet 148, and thence by a lead wire 149 back to the battery.
' The closing of relay switch 143 also makes a circuit, designated H, traced from the battery 74 by lead wire 75 to point 91, thence by lead wire 146 to the relay switch, thence by lead wire 147 to point 150, thence by a lead wire 151 to a magnet 152, and thence by a from lower contact arm 83 of switch 84 and to cause upper movable contact arm 156 to engage upper fixed contact arm 157 of said switch. Thusis made a circuit, designated J, traced from the battery 74 by lead wire 135 to the point 158, thence by a lead wire 159 to contact 160 engaging a circumferential contact portion 161 of the surface of a dial 162 fixed upon the shaft 60 and similar to the circumferential contact portion 41 of the dial 40, thence by one of spaced apart contact portions 163 of said surface and similar to contact portions 43 of said dial 40,
thence through contact 164, thence by a lead wire 165 to a magnet 166 of the corresponding printing unit, thence by a lead wire 167 to a magnet 168 of said rinting unit, thence by a lead wire 169. to xed contact 170 engaged by contact 171 upon a fallen tumbler, as in Fig. 10, thence by a lead wire 172 to upper fixed contact arm 157 of switch 84, thence to upper movable contact arm 156 of said switch, and thence by lead wire 173 and lead wire 149 back to the battery.
W hen a number is being printed, the contacts 160 and 164 are in electrical connection and the temporarily continuous flow of electricity from the instrument 32 is, evidently, transmitted to the magnets 166 and 168 of the corresponding unit of the printing mechanism. When the dial 162 is rotating with the shaft 60 so that the contact 164 intermittently wipes over the spaced apart contact,
is so constructed that its armature 174 responds to the rapid variations of current, while the magnet 168 is so constructed that its armature 175 does not respond to the rapid variations of current but only acts when the rapid variations cease and a temporarily continuous current fiows, the said magnet 168 releasing its armature when temporarily continuous current flow ceases and rapidly varying current flow is resumed.
It will be obvious that the dial 162 will rotate in synchronism with the contact bar 72 and that when said contact bar has reached its shift to numbers position, the contacts 160 and 164 will be situated at corresponding position upon the contact surface of said dial 162. Assume that the cylinder 34 has been released from its shift to numbers position and the key lever controlling the number 3 has heen d'epressed to allow-said cylinder to rotate until stopped by engagement of the shoulder of the 3 key lever with the corresponding pin on the cylinder. Concurrently, the dial 162 rotatesto cause the contact 164 to intermittently wipe over the spaced apart contact portions 163- to make and break the circuit J a corresponding number of times, as will be evident, and the magnet 166 responds to the rapid variations of current flow to cooperate with a coil spring 176 in bringing the number 3 on a printing wheel 177 to proper printing position, while it is the function of the magnet 168 to accomplish the printing when the dial 162 is brought to rest and the contacts 160 and 164 are in engagement with each other to )roduce a temporarily continuous flow 0 current in the circuit J Referring more particularly to Figs. 14
to 18, we have there shown a printing wheel 177 fixed upon a shaft 178 suitably mounted as at 179 to be rotatable in a housing 180 for the printing'wheel unit, and we have disclosed an escapement lever 181 pivotally supported in. the housing as at 182 and suitably connected with the armature 174. The coil spring 176 has one of its ends attached to the escapement lever and its other end attached to a fixed part. The escapement lever controls the rotation of a toothed wheel 183 which is keyed to the shaft 178, said shaft being rotated, when not prevented from 'rotating by engagement of the escapement lever with the toothed wheel, by means of a coil spring 184 about the shaft, the said coil spring being attached at one of its ends 185 to a ratchet wheel 186 rotatably mounted upon said shaft and at its other end 187 to said toothed wheel.
The ratchet wheel 1861's rotated at each actuation of the armature 174, to hold the coil spring 184 under tension, by means of pawls 188 pivotally supported upon the armature 174 as at 189 and held in yielding engagement with'teeth at opposite sides of the ratchet, as by an extensible member 190 between said pawls,"tl1e arrangement being such that one of the pawls, the one at the right in Fig. 16, will rotate the ratchet in counter clockwise direction to wind the coil spring 184 when the coil spring 176 acts to withdraw the armature 174 from the magnet 166, and that the other pawl, the one at the left in Fig. 16, will rotate the ratchet in the same direction when said magnet 166 acts to attract its armature against the action of said coil spring 176, the pawl which is not acting to rotate the ratchet sliding over its teeth in a usual manner.
The housing 180 also supports a pair of shafts 191 and 192, the former carrying a rotatable reel 193'which supports tape 194 fed to the printing wheel, and the latter carrying a rotatable" take-up reel 1% which eventually receives all of the printed tape.
Thecourse of the tape 194 from the reel 193 is about a printing element 196 pivoted as at 197 in an ropening 198 in the housing adjacent the printing wheel, across a face 199 of said 'houslng, over a roller 200 suitably mounted 111 an opening 201 of said housing, thence over a tensione'd roller 202, and thence to the reel 195.
The printing element 196 is connected with the armature 175 of the magnet 16 8, and when said armature is attracted by said magnet, said printing element is forced against the printing wheel to thus cause a portion of the tape to received an imprint of a character closed morevclearly in Fig. 14, the long arm 205 includes aslot 206 receiving the free end of the armature 175. A coil spring 207 attached to the housing as at'208 and to the free end of the short arm 204 as at'209 normally urges the long arm 205 away from the magnet 168, but when said magnet is energized to attract the armature 175, said armature, by reason of its engagement in the slot 206, causes said long arm to be moved toward the magnet. Upon release of armature 175 from thelmagnet, coil spring 207 promptly moves the long arm 205 and the armature away from said magnet, thus removing the printing element 196 from the printing wheel and at the same time causing a feeding pad 210, pivot-ally supported upon the upper end of longarm 205 as at 211, to firmly engage against the portion ofthe tape adjacent the inner faceof the printing element, tograsp the. tape between said pad and element and cause it to be fed ahead with the 'pad as this slides relatively to the printing element.
A leaf spring 212 attached to the long arm 1205 of the lever as at 213 and having its upper end situated -to engage a lug 214 carried by the feeding pad, holds the pad in resilient engagement with the tape during the feeding movement and allows said pad to ease away from the printing element upon the return movement of the pad, when the magnet 168 causes the longarm 205 to recede, to slide freely over the'tape, back to position for starting a new feeding movement when the coil spring 207 is again allowed to act.
The tensioned roller 202'fis conveniently rotatably supported upon the long arm, 215 of a lever, pivoted intermediate its ends, as
-at 216, on the housing'180, having a short arm 217' the free end of which is normally urged, by a coil spring .218secured to the housing as at 219'and to said short arm as at v 220, in direction to move said roller 202 away from the reel195. A lug 221 upon said lever adjacent its axis is adapted to engage a resilient movable contact arm 222 of a switch 223, and the arrangement is such that when the tape is under no tension, the coil spring 218 will act to allow said movable contact arm 222 to engage a fixed contact arm 224 of said switch 223, but when said tape is ten sioned, it causes the long arm 215 to be swung against the action of said coil-spring 218, to break contact between said arms 222 and 224, to thus open said switch 223. The switch 223 when closed is in an electric circuit, designated K, also includinga magnet 225suitably supported in the housing 180, said circuit K being traced from the battery 74- by lead wire 135 to'point 158, thence by lead wire 159 to contact 160, thence to contact 164, thence by lead wire 165 to a lead wire 226, thence through magnet 225, thence by a lead wire 227 to switch 223, thence by a lead wire 228 to lead wire 77, and back to the battery.
The magnet 225 is constructed to respond to the rapid variations in current flow when the dial 162 is rotating beneath the contact 164, as already set forth, to intermittently attract an armature 229 pivoted upon the housing as at 230, and a coil spring 231, at tached to the housing at 232 and to the armature at 233 (see Fig. 19) is adapted to withdraw said armature from said magnet each time the circuit K is broken. A pawl or link 234 pivoted upon the armature 229, as at 235, includes a free pointed end adapted to engage teeth of a ratchet 236 rotatable upon the shaft 192, and a coil spring 237 about said shaft and attached to said ratchet as at 238 and to the reel 195 as at 239 provides a resilient connection between the ratchet and reel. A suitable detent240 attached to the pawl or link 234, as by a spring 241 supported upon the housing as at 242, prevents return movement of the ratchet. See Figs. 19 and 20. It will be evident that when the tape 194 becomes slack and the coil spring 218 is allowed to act to permit the switch 223 to close, to thus make the circuit K, intermittent energization of the magnet 225 will intermittently actuate the armature 229 which will, in turn, actuate the pawl 234 to cause the reel 195 to wind until the tape is sufiiciently taut to actuate the long arm 215 against the action of the coil spring 218, to thus cause the lug 221 to open said switch 223. The magnet'225 will thus becomedeenergized, and the'feed of tape to the reel 195 will cease until said tape is again slack, whereupon the switch 223 will close, and the action as described will be repeated.
Supposing the contact bar 72 to be sit: uated to engage the shiftto numbers contact unit 69 at the position 134 in Fig. 4, and a i key lover of the transmitting instrument corresponding to the number 3 to be depressed so that said contact bar 72 rotates through tinous flow of current energizes the magnet 168 to actuate the armature 175 and thus force the tape at'the printing element 196 against said'numeral 3 upon the printing wheel. Upon movement of the dials 40 and 162 ahead, away from the position corresponding to numeral 3, the magnet 168 is deenergized and the coil spring 207 acts to remove the printing element 196 away from.
the rinting wheel and to feed the tape ahead in t e manner as already set forth.
Supposing that the next key lever of the transmitting instrument depressed corresponds to numeral 1, the dial 162 rotates ahead to position numeral 1 on the printing wheel adjacent the printing element, and upon the stopping of said numeral 1 at proper position, the printing of the numeral and the feeding of the tape are accomplished in the same manner as heretofore fully described. Additional numerals can clearly be posted in precisely the same way.
Supposing that with the selecting and posting of numeral 1, the quotation to be set opposite a heading CA on a board, such. as indicated .at 243 in Fig. 6, is complete, and it is desired to reset the apparatus to select and post an additional quotation or item of information opposite a stock or head ing, as, for example, one of the stocks on said board 243, the shift to letters key lever isagain depressed to bring the contact bar 72 back to the position as disclosed in Fig. 4, to make' a circuit, designated L, traced from the battery 74 by lead wire 135 to point 244, thenceby a lead wire 245 to a magnet 246, thence by a lead wire 247 team arm of contact unit 69 at the shift to letters po-- sition upon the dial 68, thence through the contact bar 72 to the other arm of said contact unit, thence by a lead wire 248 to lead wire 138, thence by lead wire 138 to lead wire 82, and thence by lead wire 82, lead wire 140, upper switch 55, lead wire 90, and lead Wire 77 back to the battery. Energization of magnet 246 attracts pole piece 141 and causes the lower end of said pole piece to ride over hump 144, so that relay switch 143 will remain open until magnet 136 is again energized, as will be evident. The opening of the said relay switch 143 deenergizes magnet 152 and allows coil spring 107 to elevate the CA tumbler, and also .deenergizes magnet .148 and allows contacts 156 and 157 of switch 84 to separate and contacts 83 and 85 of said switch 84 to come together. The making of circuit L also produces a circuit, designated M, including magnet 249, the said circuit M being traced from the battery 74 by lead Wire 75 to point 253, thence by lead wire 252 to magnet 249, thence by lead wire 251 to point 250, thence by a lead wire 247 to an arm of contact unit 69 at the shift to letters position upon the dial 68, thence through the contact bar 72 to the other arm of said contact unit, thence by a lead wire 248 to lead wire 138, thence by lead wire 138 to lead wire 82, and thence by lead wire 82, lead wire140, upper switch 55, lead wire 90, and lead wire 77 back to the battery.
Energization of magnet 249 causes armature 255, suitably pivoted at 256, to be attracted, and an arm 257 of said armature, (there being an armature 255 with arm 257 for each group of keys 95), to return keys which were actuated by magnets 94, as, for example, the C key in group one and the A key-in group two, to their normal positions.
It is to be understood that each corresponding magnet 94 was deenergized when the contact bar 72 was removed from the contact unit to break the circuit, such as the circuit *D, which energized the corresponding magnet 94, so that'said magnets 94 will offer no interference to the action of magnets 249 returning the actuated key 95 in each group to normal position.
The making of circuits L and M also completes another circuit, vdesignated N, having a magnet 258, the said circuit N being traced from the battery 74 by lead wire 75 to point 266, thence by a lead wire 261 to magnet 258, thence by a'lead wire 260 to point 259, thence by lead wire 247 to an arm of contact unit-69 at the shift to letters position upon the dial 68, thence through the contact bar 7 to the other arm of said contact unit, thence by lead wire 248 to lead wire 138, thence by lead wire 138 to lead wire 82, and thence by lead wire 82, lead wire 140, upper switch 55, lead wire 90, and lead wire 77 back to the battery.
Energization of magnet 258 causes armature-262, suitably pivoted at 263, to be attracted, and an arm 264 of said armature to slide the shaft 116 in its bearings to release the ratchet 124 from the pawl 123, to thus allow coil spring 128 to rotate movable contact arm 99 of switch 88 back to position against stop 129, whereby-said arm 99 will engage group one fixed contact 98 when the mechanism ad vances from the shift to letters position to deenergize the magnet 258 and thus allow spring 128 to longitudinally slide the shaft 116 back to its normal position. See Figs. 4 and 23.
\Vhen then the mechanism is actuated from the shift to letters position, the operations as described'are repeated.
I Assuming that this entire apparatus is being used for receiving and posting stock-market quotations, then each stock will have its name preferably permanently located on a board, such as the board 243 in Fig. 6, and the printing mechanism circuits will be duplicated to include a printing unit of the general construction as described for each stock. The tape for each printing unit will be arranged in about the manner as disclosed in Figs. 6 and 14, so that each quotation as posted, or directly thereafter, will desirably be opposite the heading designating the stock to which the quotation relates.
The transmitting instrument and the selecting and posting apparatus of Figs. 2 and 5 are of about the same construction as the instrument and apparatus hereinbefore fully described, except that whereas the transmitting instrument of Fig. 1 is adapted to shift from letters to numbers and from numbers to letters only at predetermined points, one for letters and one for numbers, the transmitting instrument of Fig. 2 is adapted to shift from letters to numbers and from numbers to letters at any time, as, for example, before or after the transmission of each and every character. The variant form of apparatus of Fig. 5 includes equivalents of. all of the circuits as in Fig. 4, but incorporates an ar- I rangement synchronizing thepresent form of apparatus with the transmitting instrument of Fig. 2. As disclosed. said transmitting instrument has a switch 267 including a resilient movable contact arm 268 at the opposite sides of and in spaced and insulated relation to which fixed contact arms, designated 269 and 27 0, respectively, are situated. Movable contact arm 268 is connected by a lead wire 271 to a polarized magnet 272, fixed contact arm 269 is connected by a lead Wire 273 to the minus side of a battery 274, and fixed contact arm 270 is connected by a lead wire 275 to the plus side of the battery 46. A suitable shifting device includes a shift bar 276 having its opposite ends pivoted to hell crank levers 277 which are in turn pivotally supported in convenient manner as at 278. Shift key levels 36, one at each end of the group of key levers, are adapted. to engage the bell crank levers to move the shift bar toward one side or the other. A suitably supported resilient member 279 includes a hump 280 over which a lug 281 upon the shift bar is adapted to ride in such maner that said shift bar will remain at either position to which shifted until intentionally shifted to the other position, as will be understood. A slot 281 in the shift bar 276 receives the free end of the movable contact arm 268, so that when said shift bar is moved toward the left, as it is shown, the contact arms 268 and 269 will be in engagement to cause a current to flow from battery 274 by lead wire 273, contact arm 269,
contact arn1-268, and lead Wire 271 to polarized magnet 272, and when the shift bar is moved toward the right the contact arms 268 and 270 will be in engagement to cause a current of opposite polarity to flow from battery 46 by lead wire 275, contact arm 270, contact arm 268, and lead wire 271 to said polarized magnet 272.
The apparatus 31 of Figure 5 has a switch 282 including a resilient movable contact arm 283 at the opposite sides of and in spaced and insulated relation to which fixed contact arms, designated 284 and 285, respectively, are situated. Armature 286 of polarized magnet 272 includes a slot 287 receiving the free end of movable contact arm 283. The arrangement is such that when the shift to numbers key lever 36 is operative, the armature 286 will be actuated toward the left to cause the contact arms 283 and 284 to engage each other, and when the shift to letters key lever is operative, said armature will be actuated toward the right to cause the contact arms 283 and 285 to engage each other. lVhen said contact arms 283 and 284 engage, a shift to numbers circuit, the equivalent of the circuit in Figure 4 for a similar purpose, is made, the said circuit being traced from the battery 74 by lead wire 135 to point 244, thence through magnet 136, thence by lead wire 137' to contact arm 284, thence throughcontact arm 283, and thence by lead wire 138' and lead wire 77 back to the battery. Energization of magnet 136 will perform the functions as hereinbefore fully described, and said magnet will remain energized until the shift to letters key lever of the transmitting instrument is operated, as will be obvious. lVhen the contact arms 283 and 285 engage, a shift to letters circuit, the equivalent of the circuit in Figure '4 for a similar purpose, is made the present circuit being traced from the battery 74 by lead wire 135 to point 244, thence by lead wire 245 to magnet 246, thence by lead wire 247' to contact arm 285, thence through contact arm 283, and thence by lead wire 138 and lead wire 77 back to the battery. Energization of magnet 246 will perform the functions as hereinbefore set forth, and this magnet will remain energized until the shift to numbers key lever of the transmitting instrument is operated.
It will be evident that, in the instance of the form of the invention of Figures 2 and 5, the contact bar 72 and the dial 162 will synchronously follow the movements ofthe dial 40, but that unless special provision is made for the purpose, the printing wheel 177 will not necessarily remain in synchronism with the said dials 40 and 162, for the reason that the shift to numbers can be effected when a contact portion 163 having relation to some particular number to be printed is situated at any one of various locations relatively to the contacts 160 and: 164 during the travel of the said contact portion 163 about the shaft 60.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415909A (en) * 1939-05-15 1947-02-18 Teletype Corp Printing telegraph apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415909A (en) * 1939-05-15 1947-02-18 Teletype Corp Printing telegraph apparatus

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