US1336840A - Listing-machine - Google Patents

Listing-machine Download PDF

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Publication number
US1336840A
US1336840A US210301A US21030118A US1336840A US 1336840 A US1336840 A US 1336840A US 210301 A US210301 A US 210301A US 21030118 A US21030118 A US 21030118A US 1336840 A US1336840 A US 1336840A
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link
plate
key
machine
stud
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US210301A
Inventor
Oliver D Johantgen
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Victor Adding Machine Co
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Victor Adding Machine Co
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Priority to US210301A priority Critical patent/US1336840A/en
Priority to US340581A priority patent/US1396215A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00—Input mechanisms
    • G06C7/02—Keyboards
    • G06C7/06—Keyboards with one set of keys for each denomination

Definitions

  • the invention relates to calculating machines, and more particularly to machines having recording attachments, though some of the features of improvement providedby the invention are not limited in their application to machines 'which are thus equipped.
  • One of the principal objects of the invention is to provide an efficient calculating machine which is of inexpensive construction. To this end the invention contemplates improvements which promote simplicity of construction and reliability in operation, without requiring that extreme accuracy be obtained in the formation or finishing of the parts.
  • Other objects of the invention are to provide improved devices for indicating upon the record that the machine has been cleared before the be inning of a new operation, and for preventing any improper manipulation of the machine.
  • Figure 1 is an elevation showing one side of a listing machine embodying the features of improvement provided by the invention, the case or cover and the actuating handle being removed and the accumulating mechanism being omitted;
  • Fig. 3 is a vertical longitudinal sectional viewof the machine, the plane of section being indicated by the line 3-3 on Fig. 5;
  • ig. 4 is a 'front elevation, the accumulator being omitted and some of the parts being shown in section on the plane indicated by the line 4 4 on Fig. 3;
  • Fig. 5 is arear elevation of the machine, some parts being omitted;
  • Fig. 8 is a si e elevation similar to a detail of Fig. 2, but havin some parts omitted while other parts are position;
  • F .9 is aside elevation also similar to a detail of Fig. 2, but showing anotherposition of the parts and with some features omitted;
  • Fig. 10 is a detail elevation showing the locksgfor the printing fl ainmers and some associated parts
  • F g ll an elevation showing a controll ng element for thes'i na ⁇ printing mechamsm'separated from .0 her parts;
  • I ig.- l2 is a detail side view of the controlling link for the signal ,printing mechanism
  • Fig. I6 is a,detail plan view showin the key guides, and an associated part of the frame, some vofthe key stems being shown in sect on; x
  • F g. 18 is a plan view, partly in section, showing the main actuating link separated from other parts;
  • Fig. 19 is a side elevation similar to Fig. 2 but showing a modified form of construction and having the printing mechanism omitted;
  • Fig. 22 is a detail rearelevation showing a pair .of. relatively movable sliding plates used in the form of construction illustrated in Figs. 20. and 21;
  • Figs. 23, 24 and-25 are details of a modi- .of side plates 47 and 48.
  • op erating handle for actuating theraelrbars and other movable parts of the machine, and printin mechanism at the rearward end of the casing arrangedto be set by means of the keys and operated by the handle.
  • Suitable keys are also provided whereby the 'inechanism'may be set for taking totals or subtotals and clearing the accumulator.
  • The. recording mechanism generally desi nated 27,-is located at the remote end of t e machine from the accumulator 25, its
  • This recor ing mechanism serves for printing against a laten roller, re resented in diagram at 28.
  • he ribbon gui es 29 and 30 are located directly in front of theplaten roller 28 and at opposite ends of a row of t pe bars, 0 permit the printing of items and totals in different colors.
  • the ribbon guides 29 and 30 are shiftable for use with a two colored ribbon (not shown).
  • the construction also contemplates a movement of the ribbon guides 29 and 30 for printing the upper and lower portions of so-called non-add items from the differently colored parts of the ribbon.
  • Theitype bars 32 to 38 inclusive F ig.-"5) are each provided with R'TIIlI SBtOf figure typefand the different typesare presented 0 the laten 28 byvertical'movement of the are. controlledibyv the same sliding rack bars 52,
  • the spacing of the type bars 32 to 38 and bell-crank levers 55 is preferably less than that of the rack bars 52, the arms 59 of some of the bell-crank levers 55 are laterally oflset to extend to the planes of the corres ondin'g'raok bars, as most clearly illustrate "in Figfi5g' f
  • the keyboard 45 includes a separate set bf nine key 60 f each denomination. Under these circumstances the key stems 61 cofiperate as limiting stops directlvwith shoulders 62 on the rack bars 52, and the movement of the rack bars in'one direction, to' bring their shoulders to the depressed keys, is accomplished by springs, as 63, in a well known manner.
  • each of the lates '64 and 65 is formed with gudgeons 6 at its op 0- site ends, and these gudgeons are journal e inthe corresponding end plates 43,44, of the main frame.
  • the spring movement ofuthe plates is conveniently accomplished by the ofra set ofielastic split rings 67, one of which embraces the plates 64, 65, of each set.
  • the efieot ofthese spring rings 67 is to normally close :the plates 64, 65,;of each pair shoulder upon the swinging of! the plate.
  • This construction provides that each rack bar 52 is released upon the depression of any key in the corresponding row, andalso that the depression of any key serves to release any previously depressed key in the same row.
  • a keyboard lock in the form of a bar 7 5 is accordingly provided, consisting of a movable strip extending across the machine and having lugs 7 6 for entering the paths of movement of one of the plates, as 64.
  • the bar 75 projects through an opening 77 (Fig. '1) in the main side plate 39.
  • it is madein theform of'a bail, its twoends 78 and 79 (Figs. 1 and 3) being pivotally secured against the outside of the side plate 39 and the inside of the side plate 40, respectively.
  • the machine is actuated with the familiar form of forwardly swinging oscillating handle 80, retracted by a main spring 81.
  • the handle 80 is located at one side of the machine, and is fixedion one 'end of-the imain shaft 82.
  • the main shaft 82 exten'dstransversely through the machi'ne near. its forward end, and has the crank; arms 83 or 84 a plied thereto at each side of the frame.
  • control shaft 85 has an ioscillatm movement similar to that of the main sha 182.
  • Thecontrol shaft85 isprovided with a-crank-disk86 at one end, and a ,yieldinglinkB? Figs.i J. and
  • the main spring 81 is connected with the section 88 of the link 87 near its point of attachment to the crank arm :83.
  • double" acting pawl 99 cooperates with ratchet teeth 100 formed on the rim of the crank disk'86'.
  • the range ofmovement of the crank disk 86 is determined .bya stop block 101, and by a fixed stud 103 which is carried bytthe stop 'blockand'projects outwardly therefrom.
  • the stop blocklOl is secured against the main side plate 39 andis engaged at one side by an inturned 'anm 102 on the crank-disk 86, to arrest thevmovement of the machine as each operation is completed.
  • a variable friction drag is provided by the following means :-A pair of washersllO are mounted upon the shaft 104 to bear against opposite sides of each rack bar. Springs 111, coiled about the shaft, react between the washers of ad jacent bars, thus developing friction between the washers and such of the bars as are inactive. As the'active bars travel with the rod 104 they move-without friction. It follows, therefore, that the load and the friction drag vary inversely with variations in the number of rack bars in action. So, too, the effort required in tensioning the springs is rendered approximately uniform, for while the resistance to the return of the handle varieswith the number of bars in action, there is a corresponding variation,
  • the indicator wheels 51 of the accumulator 25 are normally engaged with the rack bars 52 only during the return movement of the latter. Furthermore, when a total is taken the indicator wheels 51 are engaged with the rack bars 52 only during the outward movement of the rack bars. In the taking of a sub-total, the indicator Wheels 51 are engaged with the rack bars 52 during both their outward and return moveinents. The engagement and disengagement of the indicator wheels 51 and rack bars 52 is accomplished by vertical movement of the spindle 112 on which the indicator wheels are mounted. This spindle is guided by having its ends seated in vertical extended notches 113 (Fig. 2) in the ends of the accumulator bracket 26.
  • the spindle 112 is supported in the ends of a bail-like frame 114, hereinafter termed the accumulator frame, which swings upon a transverse tierod 115.
  • This tie-rod in turn has a swinging movement and is part of a rocking frame which also comprises the bell-crank levers 116, one at each side of the machine.
  • the bell-crank levers 116 each have one arm pivotally secured against the accumulator bracket 26, as at 117.
  • a spring 118 acts between the other arm of one of the bell-crank levers 116 and a fixed stud 119, to normally hold the spindle 112 in elevated position.
  • a short link 122 connects the plate 120'with one of the arms of the adjacent bell-crardr lever 116.
  • the spring 118 normally serves to hold the spindle 112 in elevated position
  • a second sfirin 123 acting between the link 122 and t e pFate 120, serves to hold the spindle 112 in depressed position when the point of connection of the link 122 with the plate 120 has passed below the level of the stud 121.
  • link 128 is effective for turning the plate 120 in both directions during the normal operation of the machine.
  • the link 129 is effective for turningthe plate 120 in both directions during the taking of a total. In taking a sub total, the link129 is eifectiveto turn the plate 120 in one direction, and the link 128 1s effective to turnthe plate 120. in the opposite direction.
  • the links 128 and 129 are pivotally connected with the plate 120 at opposite sides of its center, as at 131 and 132.
  • the link 128 is formed with a hooked end 133.
  • hooked end 133 of the link 128 is engaged upon one side by the stud 126 as the control shaft 85 approaches the limit of its forward movement, and upon the other side by the stud 125 as the control shaft ap roaches the limit of its return movement.
  • he link 129 is formed with oppositely facin shoulders 134 and 135. When this link is effective the shoulder 134 is engaged by the stud 127 at the beginning of the forward movement of the control shaft 85. Near the end of the forward movement of the control shaft 85 the stud 125 passes under the rear end of the link 129 for engagement with the shoulder 135 at the beginning of the return movement of the control shaft 85.
  • the link 129 is normally supported in elevated position out of the path of the studs 125 and 127. For this purpose it rests in the notched arm 136 of a vertically mov able bracket 137, to which the stem 138 of the total key 139 is connected.
  • This method of supporting the link129 permits of the lifting of the link for the engagement of the stud with the shoulder by the cam engagement of the stud with the rear end of the link.
  • the bracket 137 is formed with a vertical slot 141, and is slidingly held against the side plate 40 by a stud 142 which runs in this slot.
  • a spring serves for elevating the bracket 137 and total key 139.
  • the flange of the disk 124 extends into the path of an outstandin arm 143 carried by the bracket 13?, but t 1e said flange has notches 144 and 145 which respectively register with the arm 143 when the machine is at rest and when the control shaft 85 has completed its forward movement.
  • the plate 146 is formed with a 1119; 153 which extends over the flange of the disk 124.
  • the lug 153 registers with the notch 145 in the said flange. Since the movement of the control shaft 85 is not sufficient to bring the opening 144 into register with the lug 153 at any time, the non-add key 130 is not released. after depression, until the machine again comes to rest.
  • he comb 161 also serves for clearing the keyboard 45 as the control shaft 85 hp- 0 proaches its position of rest after each operation.
  • a pawl plate 168 (Fig. 1) is pivotally secured against the comb end 163. The lower end of this awl plate extends into the path of astu 169 which is 15 secured against the crank disk 86 u on the inside of the same.
  • the stud 169 lifts the pawl plate 168 without lifting the comb 161.
  • swinging 120 of the pawl late 168 in the other direction, independent y of the comb 161 is prevented by providing the pawl plate with a projection 170 which extends ,over the pivot 165.
  • the stud 169 accordingly serves to engage the-lower end of the pawl plate 168 and lifts the comb 161 to clear the keyboard 45.
  • pawl plate 168 is lifted out of the path of the stud 169.
  • a lever 172 (Figs. 1 and 14) is pivotally secured against the corresponding side plate, as 39, at 173, and one end of this lever is connectedwith the stem 174 of the repeat key 171.
  • the other end of the lever 172 extends under a shoulder 175, formed on the pawl plate 168.
  • the keyboard lock 75 is desirably raised to'effective position immediately at the beginning of each forward movement of the actuatin handle 80.
  • the raising of the keyboar lock 75 is accom lished by a sprin 176 (Fig.
  • ke lock end 78 and extends into the path of t e stud 93.
  • the pawl plate 177 yields to the stud 93 and the lifting of the key lock 75 by its spring 176 is permitted as soon as the stud 93 becomes disengaged from the downwardly extended portion of the key lock end 78.
  • the yielding of the pawl plate 177 is limited by the engagement of this pawl plate with the pin, as 178, through which one end of the spring 179 is connected to the key lock end 78.
  • the engagement of the stud 93 with the front edge of the pawl plate 177 accordingly serves to unloc the keyboard 45 before the comb 161 is raised by the engagement of the stud 169 with the front edge of the pawl plate 168.
  • a set of swinging hammers 180 (Fig-13), one for each type bar 31 to 38, inclusive, serve for forcing the type bars against the platen 28 to accomplish the printing operations.
  • These hammers are loosely pivoted upon a transverse shaft 181.
  • This shaft is journaled in the side plates 47 and 48, and atone end .it projects throu h the corresponding side, plate, as 47. otation of the shaft 181 in one direction serves for restoring the hammers 180 after their operation.
  • a pair of cranks 183 are fixed upon the shaft 181, at opposite ends of the row of hammers, and a restoring rod 184 extends between the cranks 183 in front of the hammers.
  • the printing hammers 180 are normally held against'movement by a set of hammer locks 1900i 1911
  • the hammer lock 190 controls "the hammer, 180, "which actuates the ty e bar 31 for printiii'g' the clear signal. he remaining-hammer locks '191'control the hammers "180' which adtuate the fig ure type bar's""32' to 38 inclusive.
  • the hammer locks 190, 191 are pivotally mounted upon a transverse rod 192, carried by a swinging frame :193 and hereinafter referred to as'th'erectifying frame.
  • the rectifying frame 193. is in,turn carried by a transverse shaft-"194.
  • a spring 207 acts between the bellcrank levers 182 and 202, and serves to in sure a smoother operation while the partsare being restored to their normal positions by the enga ement of the crank pin 206 with that part 0% the bell-crank lever 202 which is below the notch 205 during the return movement of the control shaft 85. If the spring 207 is of suflicient strength to overcome the resistance ofall ofthe hammeractuating springs 185, the main spring 81 is largely relieved of the work of restoring the hammers 180.
  • the type bar 31 As the type bar 31 is supplied with only a 1 single type character, no vertical movement of it is required.
  • This type bar accordingly has a fixed ivot, as upon a transverse rock shaft 208 Fig. 13); A sprin 209 (Fig. 5), coiled about this shaft ad acentE oneiend of the same, serves for swinging-the typebar 31 away from the platen 28.
  • type bars 32 to 38 inclusive are normally held out of contact with the platen 28 by helical springs 210 (Fig. 13), one of which acts betweenthe lower end of each t pe bar- 32 to 38 and the c'orrespondingbe l-c'rank lever 55.
  • each hammer lock 191 except the one at the extreme right-hand end of the series, is provided near its upper end with a lateral projection 212. which extends in front of the upper end .of the next adjacent hammer 10010191 to the left.
  • the comb-215 maybe raised-toenter its teeth in the notches 214, At other times the raising ofthe comb '215is. lin'iited by the engagement of one or more was teethwith ofthe 'correspondihg' 'indicator wheels.
  • Eurthermor'e 'as the accumulator 25 is clear'whenatot al or sub-'total is being'fprin'ted, provision is-desirably also made to prevent the raising of the comb 215 at this'time; viz:when the accumulater frame "114 hasbsen lowered during' the outward movement ofthefrack bars 52.
  • the conib215 is carried tween a pair of crank arms, as 216- (Fig, 13), one at each end of the comb
  • crank arms are fixed upon a rock shaft 217, T and this rock shaft extehds between and is journaled at its opposite ends in the two ends of the accumulator frame 114/
  • the rock shaft 217 aecordin ly rises and falls with the accumulator rame 114.
  • Movement of the comb 215 is confined to avei'tical plane by providing it at each end with a slotted am 218, which engages the spindle 112 upon which the indicator wheels 51 are mounted.
  • fThG rock shaft 217 is also provided with a crank arm 21'9 intermediate its ends.
  • crank arm carries a crank pin 220.
  • the function of these parts is to provide for the withdrawal of the hammer lock 190 when the raisin of the comb 215 is permitted.
  • a link 222 having a notched forward end for receiving the pin 220, extends rearwardly from this pin over the transverse frame member 41, and over the control shaft 85.
  • the link 222 is turned upwardly and has a "pin and slot connection 223'with the hammer lock 190. This pin and slot connection permits rearward movement of the rectifying frame 193 without dislodging the hammer lock 190 from the corres ondin hammer 180.
  • a yielding stud: 225 is carried by the link for cooperation with the contact. shoulder 221.
  • Movement of the rock shaft 208 is varied iii-accordance with the part ofthe ribbon to This, frame be used for printin As shown, the rock shaft 208 is provide at one end with acrank arm 234. A link 235 (Fig. 2) connects the.
  • crank arm 234 with a crank arm 236, which is mounted upon theinner end of another transverse rock shaft 237.
  • the rock shaft 237 extendsoutwardly from one side ofthe recordingrmechanism 27 to the plane of the adjacent sideof the machine. As shown, it is journaled.
  • the link .240 has a pin and slotjeonnection 24:2, 243, with vthe adj a-. cent plate 107, theslot 243being of different len at different levels, and the upper andshortest .part of the slot beingonly equal to the width of the pin 242. It follows from this construction that if the link 240'is depressed to bring the shortest part of; the slot 243 into alinement with the pm. 242, the link 240, will beunoved. with-the,plate 107 throughout the full range of movement of the latter and the ribbon-guides 29. 30,'are completely elevated. On the other hand, as the link 240.
  • the pin m will be effective to raise the ribbon guides'29, 30, a sufiicient distance .to present the intermediate part of the ribbon for printing.- In event only-a two-colored ribbon is used. the printing of the upper and lower parts. of the several characters will then besaccomplished with differently colcred parts of the ribbon.
  • Depression of the link 240. to cause a complete. elevation of the-ribbon guides 29, 30, is preferably accomplished when the total key 139 isused. This is most readily brought about by making the stud 167, which is effective for clearing the keyboard. long; enough to also extend over the link 240 (Fig. 2). The totals and sub-totals are accordingly printed from a. different part of the ribbon than is used-during the normal operation of the machine.
  • a artial. depression of the link 240 is desire -when the non-add key 130 is used.
  • a separate key 244 is mounted in the keyboard 45 adj acent the nonadd key; 130.
  • key 244 is pivotally connected with a swinging plate 246.
  • This plate is pivotally secured against the main side plate 40 at 247, and carries a stud 248 for engagement with the upper edge of the link 240.
  • a spring 249 acts between the swinging plate 246 and a fixed support for raising the key 244 and the plate.
  • the sliding plate 146 which is effective for depressing the link 128, is formedwith a projection 250 which normally overlies an extended part 251 of the swinging plate 246.
  • depression of the key 244 to move the extended part 251 of the swinging plate 246 out from under the pro'ection 250 is required to permit the use 0 the non-add key 130.
  • the projection 250 lies in rear of the extended part 251 of the swinging plate 246 (Fig. 8) to prevent the-return of the key 244 until the non-add key 130 has been released. Printing of the non-add items from an intermediate part of the ribbon is thereby insured.
  • the construction shown permits of the operation of the type bar 31 to print a signal with a non-add item, in event such an item is printed when the accumulator 25 is clear, the printing will, nevertheless, be distinguished from a first item by the use of an intermediate part of the type ribbon. Furthermore, as the printing of non add items does not affect the accumulator, the operation of the type bar 31 to print signals with the non-add items when the accumulator is clear, does not in any way interfere with the subsequent operation of the type bar 31 to print a signal with the next added item. In other words, the type bar 31 always operates to print a signal when the accumulator 25 is clear, except during the printing of a total or sub-total.
  • the signal printed by the type bar 31 will be repeated with each of these non-add items and will also be shown with the first succeeding added item.
  • the machine may be largel constructed from stamped metal parts wit out machine finishing, if the parts are so shaped as to avoid the use of cut edges as bearing surfaces for moving members.
  • the rack bars 52 are each formed with hori zontal flanges 252 (Fig. 4) and 253 (Fig. 5). These flanges slide through openings 254 in the transverse frame member 41 or 42, and each opening 254 has enlarged ends 255 to prevent contact of the margins of the opening with the corresponding rack bar, either at the angle between the rack bar and its said flange 252 or 253, or at the free edge of the flange.
  • each rack bar 52 smooth supporting bearings for each rack bar 52 are provided by securing a separate plate 256 against the transverse frame members 41 and 42 below the openings 254.
  • the plates 256 are each formed with a series of inturned lugs. as 257 (Fig. 3). These lugs extend through the openings 254 under the flange 252 or 253 of the correspondin rack bar
  • the width an spacing of the lugs 257 is such that the free edge of each flange 252 or 253 extends beyond the adjacent edge of the corresponding lug 257.
  • T e lugs 259 serve as brackets for supporting a series of shelves 260.
  • the shel es 260 have slots 261 for receiving the key stems 61, and they are held to their seats upon the bracket lugs 259 by downward pressure of the ke springs 262.
  • Each shelf 260 has a rib ed reinforcing plate 263, secured thereto along its upper surface, the forward ed e of the reinforcing plate being formed with notches to clear the key springs 262.
  • the rear ed e of the newly applied shelf is located a su stantial distance under the bracket lugs 259 of the next higher set, and the front edge of the shelf is supported in elevated osition through the fact that the depressed ugs 265 are resting upon the top of the bracket lugs 259 upon which the shelf is finally to be su ported.
  • the correspondin kc stems 61 aving been introduced an he d in depressed position the shelf 260 is moved forwardly until the hooked lower ends 267 of the key stems 61 become engaged with the rear edge of the next lower shelf or with the rear edge of the flange 268 an the depressed lugs 265 have passed the front edges of the corresponding bracket lugs 259.
  • the key springs now serve to depress the shelf and to firmly hold it in position with the depressed lugs 265 and 26,6 en aged with lie bracket lugs 259.
  • the Key 139 serves for takin both a total and a sub-total, the clearing o the machine after. taking a sub-total being prevented by lifting the total key at the end of the forward stroke of the operating handle.
  • two vertical sliding plates 269, 270 are employed for controlling the link 154.
  • the spring 140 is connected with the plate 270, while the stem 138 of the total key 139 is connected with the plate 269.
  • the plates 269 and 270 each have slots 271, 272, for receiving guide pins 273 and 274 carried by the main side plate 40, and the end of the key stem 138 e06 rates with a shoulder 275 on the plate 2 0 to cause downward movement thereof when the total key is depressed and restoration of the total key by the spring 140, but permitting a manual restoration of the total key without lifting the plate 270.
  • the lifting of the plate 269 serves to raise the link 154 in the manner required when a sub-total is taken, but the lifting of the plate 270 being prevented, the spring 140 cannot act to 11ft the total key and this must be manually accomplished.
  • This construction also has the advanta e of preventing the depression 01'- the tota key at the end of the forward stroke of the operating handle.
  • the form of construction illustrated in Figs. 20 and 21 also has provision for preventing the depression of the total key 139, following the printing of an item, until after a pause in the operation of the machine suflicient to insure that all of the transfer devices of the accumulator shall have completed their movement.
  • the machine is equipped with recording devices there is no occasion for the operator to read the total upon the register wheels after printing the last item. The operator may therefore undertake to clear the machine immediately upon the completion of the return movement of the handle 80. For this purpose he will depress the total key 139 and pull the handle forwardly again.
  • the operation of the transfer devices is not interrupted until the indicator wheels 51 are depressed for reenfiagement with the rack bars 52.
  • the reengagement of the indicatof wheels 51 with the rack bars 52 does not occur until the handle 80 has reached the limit of its forward movement.
  • the operation of the transfer devices may therefore be continued during the forward movement of the handle 80, and a completion of the movement of the transfer devices is insured.
  • depression of the total key 139 brings

Description

0. D. JOHANTGEN.
LISTING MAuHINE.
APPLICATION mm JAN. 4, 1913 1o SHEETS-SHEET I.
7 fave/$1 wQQ/V,
Jig S 0. D. JOHANTGEN.
LISTING MACHINE. APPLICATION FILED JAN-4,1918.
Patented Apr. 13, 1920.
l0 SHEETS-SHEET 2.
.33.. mg as \Q%\.
AN Kg hwm mwm ANN 0 \mwwh nu nd 0. D. JOHANTGEN.
LISHNG MACHINE.
l0 SHEETS-SHEET 3.
Patented Apr. 13, 1920.
0. D. JOHANTGEN.
LISTING MACHINE.
APPLICATION FILED JAN. 4. 1918.
1 ,336,840. Phtented Apr. 13, 1920.
10 SHEETS-SHEET 4- 3r cm.
i I 9 2 c?" W I l O.D. JOHANTGEN.
LISTING MACHINE.
AVPLICATION flLED JAN.4. 1915.
1,336,840. Patented Apr. 13, 1920.
I0 SHEETS-SHEET 5.
722966. Gilk/erfl 0. D. JOHANTGEN. LISTING MACHINE. APPLICATION FILED JAN. 4. ms.
Patented Apr. 13, 1920.
I0 SHEETS-SHEET 6.
0. D. JOHANTGEN.
LISTING MACHINE.
APPLICATION FILED JAN.4.19IB.
QZu/er @Z- O. D. JOHANTGEN. LISTING MACHINE.
APPLICATION FILED JAN. 4, IEHB.
1,336,840. ,Pat nted Apr- 13, 1920.
1o suzns-suzn b.
0. D. JOHANTGEN.
usrme MACHINE.
APPLICATION FILED MN- 4 E3318.
1 $536,840. Patented Apr. 13, 1920.
10 SHEETS-SHEET 9- 0. D. JOHANTGEN.
LISTING MACHINE.
APPLICATION FILED um. 4, ms.
Patented Apr. 13, 1920.
10 SHEETS-SHEET I0.
UNITED STATES PATENT OFFICE.
OLIVER D. JOHANTGEN, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,
TO THE VICTOR ADDING MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.
LISTING-MACHINE.
Patented Apr. 13, 1920.
Application filed January 4, 1918. Serial No. 210,801.
To all whom it may concern Be it known that I, OLIVER D. JOHANT- GEN, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Listing-Machines, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.
The invention relates to calculating machines, and more particularly to machines having recording attachments, though some of the features of improvement providedby the invention are not limited in their application to machines 'which are thus equipped. One of the principal objects of the invention is to provide an efficient calculating machine which is of inexpensive construction. To this end the invention contemplates improvements which promote simplicity of construction and reliability in operation, without requiring that extreme accuracy be obtained in the formation or finishing of the parts. Other objects of the invention are to provide improved devices for indicating upon the record that the machine has been cleared before the be inning of a new operation, and for preventing any improper manipulation of the machine.
In the accompanying drawings Figure 1 is an elevation showing one side of a listing machine embodying the features of improvement provided by the invention, the case or cover and the actuating handle being removed and the accumulating mechanism being omitted;
Fig. 2 is similar to Fig. l, but shows the other side of the machine and includes the actuating handle and the accumulator;
Fig. 3 is a vertical longitudinal sectional viewof the machine, the plane of section being indicated by the line 3-3 on Fig. 5;
ig. 4 is a 'front elevation, the accumulator being omitted and some of the parts being shown in section on the plane indicated by the line 4 4 on Fig. 3;
Fig. 5 is arear elevation of the machine, some parts being omitted;
Fig. 6 is a detail side elevation showing the printing frame and some of the parts mounted thereon, the control shaft being shown in section and a different positionof some of the parts being indicated .by dotted lines;
Fig. 7 is a detailelevation showing the control shaft ,se arated fromoth er parts;
Fig. 8 is a si e elevation similar to a detail of Fig. 2, but havin some parts omitted while other parts are position;
F .9 is aside elevation also similar to a detail of Fig. 2, but showing anotherposition of the parts and with some features omitted; I
Fig. 10 is a detail elevation showing the locksgfor the printing fl ainmers and some associated parts;
F g ll an elevation showing a controll ng element for thes'i na} printing mechamsm'separated from .0 her parts; P
I ig.- l2 isa detail side view of the controlling link for the signal ,printing mechanism,
own in a diiferent the control shaft and a detail of the frame being shown in dotted lines;
Fig. I6 is a,detail plan view showin the key guides, and an associated part of the frame, some vofthe key stems being shown in sect on; x
,Fi 1 7 is a detail side view of the parts shown in Fig. 16,: the key stems being omitted;
F g. 18 is a plan view, partly in section, showing the main actuating link separated from other parts;
Fig. 19 is a side elevation similar to Fig. 2 but showing a modified form of construction and having the printing mechanism omitted;
Figs. 20 and2Lare each similar to a detail of Fig. 19, but show a further modification with theparts in dili'erent positions;
Fig. 22 is a detail rearelevation showing a pair .of. relatively movable sliding plates used in the form of construction illustrated in Figs. 20. and 21; and
Figs. 23, 24 and-25 are details of a modi- .of side plates 47 and 48.
,designated 31 to.38 inclusive.
fiedform bf construction of the printing mechanism.
. The particular listing machine which has been selected for the purpose of illustrating the invention includes the accumulator which forms the subject of Patent No. 1,306,112, issued to me under date of June The machine is provided with a sheet metal frame shown as oblong rectangular,- open at the bottom and having an inclined cover plate upon which the ke board is mounted. The keys 'are arrange in seven rows, each extending from front to rear and composed of ke s numbered, respectively, from'l to 9. hese keys comprise finger pieces and stems, .the latter reciprocating through slots in the cover plate, and may be depressed against the resistance of springs to coiiperate with and determine the movement of a series of rack bars, one for each row of keys, these bars being. adapted to turn a set of accumulator wheels located at the front end of the case, the several keys determining the! range ofmovement-of the rack bars. j Thereis also providedan op erating handle for actuating theraelrbars and other movable parts of the machine, and printin mechanism at the rearward end of the casing arrangedto be set by means of the keys and operated by the handle. Suitable keys are also provided whereby the 'inechanism'may be set for taking totals or subtotals and clearing the accumulator.
As thus outlined the machine is of a common and well known type, but as to various features, as hereinafter pointedout, it presents eleinentsof novelty in structure and function.
In the accompanying drawings the accumulator is generally designated 25. Its parts are assembled upon a bracket 26, hereinafter referred to as the accumulator bracket. This bracket has the form of an invertedpbail, and it extends across the main frame of the machine at one end.
The. recording mechanism, generally desi nated 27,-is located at the remote end of t e machine from the accumulator 25, its
parts being principally held between a air This recor ing mechanism serves for printing against a laten roller, re resented in diagram at 28.
he ribbon gui es 29 and 30 are located directly in front of theplaten roller 28 and at opposite ends of a row of t pe bars, 0 permit the printing of items and totals in different colors. the ribbon guides 29 and 30 are shiftable for use with a two colored ribbon (not shown). The construction also contemplates a movement of the ribbon guides 29 and 30 for printing the upper and lower portions of so-called non-add items from the differently colored parts of the ribbon.
plates 47, 48, of' the recording mechanism are held between the main side plates 39 and 10 at one end and project beyondgthe same. As shown, the sideplates 48?,"48, are" each carried by a pair of studs 49, 50, which 'pro- 'ject inwardly from the adjacentside plates Theitype bars 32 to 38 inclusive F ig.-"5) are each provided with R'TIIlI SBtOf figure typefand the different typesare presented 0 the laten 28 byvertical'movement of the are. controlledibyv the same sliding rack bars 52,
' which serve for 5 controlling the indicator wheels bl o f the-"accumulatof25 (Fig. 3 As, strewn; each iackbar -52 -i's forwardly "preview was teeter gearas fiayfor emv gagenient with the corresponding 'indicator wheel 51 iII' 'tHQ asaal manner-"The connection "betweenfeach I rack {bar 52- and the correspondingty e bar comprises i a: link '54:
his vertical inov'ment of 'the bars is 5 and a bell crankever 55 (Fig.3), The m:
eral bell crank? levers"55 s'wing in vertical "planes. For 'this-purpose they are journaled upon a horizontal tierodiifi, which extends transversely between the' s'ide plates 47 and 48 of therecording mechanism at theextreme rear end of the machine. One arm, as 57, of each bell-crank lever 55 has a pivotal. connection with the corresponding type bar 32 to '38, at58, and one of the links 54 extend'sIfrom theother arm, as 59, of each" bell-crank lever to the corresponding rack bar 52. As. the spacing of the type bars 32 to 38 and bell-crank levers 55 is preferably less than that of the rack bars 52, the arms 59 of some of the bell-crank levers 55 are laterally oflset to extend to the planes of the corres ondin'g'raok bars, as most clearly illustrate "in Figfi5g' f In the arrangement shown, the keyboard 45 includes a separate set bf nine key 60 f each denomination. Under these circumstances the key stems 61 cofiperate as limiting stops directlvwith shoulders 62 on the rack bars 52, and the movement of the rack bars in'one direction, to' bring their shoulders to the depressed keys, is accomplished by springs, as 63, in a well known manner. The stems 61 of all .offthe keys of each set slide between a pair of spring-pressed swinging plates 64, 65 '(Fi 4). These plates serve as a key lock an a rack lock, respectlvely. As shown, each of the lates '64 and 65 is formed with gudgeons 6 at its op 0- site ends, and these gudgeons are journal e inthe corresponding end plates 43,44, of the main frame. The spring movement ofuthe platesis conveniently accomplished by the ofra set ofielastic split rings 67, one of which embraces the plates 64, 65, of each set. The efieot ofthese spring rings 67 is to normally close :the plates 64, 65,;of each pair shoulder upon the swinging of! the plate. :Each of'the plates '64, on the other hand,- is provided witha series of instaniding fingers 69, for holding the keys intheir'depressed positions. As shown, notches 70. .and -71 (Fig. '8) are formed injthe key stems 61, and these notches registerwith the; fingers 69 in 'the depressed and elevated-positions of the keys, respectively. In order {that each plate '64 will beiswung outwardly against the efi'ort of the corresponding spring 67,upon the depression of any key 60; in the corresponding row, the upper portionaof each finer; 69 isxformed with 'ancinclin'ed shoulder Y, '2'ior cam engagement withthat part, as .74=, of thezkey stem which isep'arates the i 30 notches 7 0. and 71; l-Simi1arly,;each plate is formed with a series of inturned fingers 73, which have cam engagement'fivith the parts 74 of the key stems '61 for swinging .the plate 65 outwardly upon the: depression of any key inthe corresponding row. This construction provides that each rack bar 52 is released upon the depression of any key in the corresponding row, andalso that the depression of any key serves to release any previously depressed key in the same row.
- Furthermore, all of the keys 60 of the entire keyboard 45 may be locked against movement, if outward movement of the several plates 64:.or 65 is prevented. A keyboard lock in the form of a bar 7 5 is accordingly provided, consisting of a movable strip extending across the machine and having lugs 7 6 for entering the paths of movement of one of the plates, as 64. At one end the bar 75 projects through an opening 77 (Fig. '1) in the main side plate 39. Preferably it is madein theform of'a bail, its twoends 78 and 79 (Figs. 1 and 3) being pivotally secured against the outside of the side plate 39 and the inside of the side plate 40, respectively. When constructed in this way'the keyboard lock becomes effective upon an upwardswinging movement of the same.
The machine is actuated with the familiar form of forwardly swinging oscillating handle 80, retracted by a main spring 81. The handle 80 is located at one side of the machine, and is fixedion one 'end of-the imain shaft 82. The main shaft 82 exten'dstransversely through the machi'ne near. its forward end, and has the crank; arms 83 or 84 a plied thereto at each side of the frame.
hese crank'armsmove the transverse sliding rod 104,-(FigsQ- 3: and 4) by which the rack bars 52 are returned to normal position, and the crank arm- 83 additionally serves for communicating motion to the control shaft-85, shown in detail inFig. 7, which extends transversely thrfoughthe main frame near its rear end. =7.
i In the particular 1; form of construction illustrated in this applicatidngthe control shaft 85 has an ioscillatm movement similar to that of the main sha 182. .Thecontrol shaft85 isprovided with a-crank-disk86 at one end, and a ,yieldinglinkB? Figs.i J. and
18') connects lihlS disk withthe crank arm 83 andis made yielding to-impart flexibility to the operation of the-machine. Asshown, this comprises a pair of overlapping sections 88,189, and a pair of side plates .90, 91. 'l he two side plates--90 and 91 are gconnectedby springs 92. '{l heseside plates are .fllSO'tEPIOVldBd with oppositely facing rstuds 93, 94,.the two istuds being located ,at
theopposite ends oat-the plates-- Each stud projects through slotted openings 95, 96, provided in rthe-two link sections .88, 89, in their overiappi portions,- land :through :a
slotted opemng.,9 M98 in thetopposite. side plate 90 or 91. T-he'result o'f thisconstruction is thatthe springs 92 normally hold the link 87 to a fixed length, and arelative longitudinahsliding movement of the two link sections 88 and 89in either direction results in an extension ofthesprings. The link 87 may accordingly ibe elastically extended or elastioally contracted from its normal length.
The main spring 81 is connected with the section 88 of the link 87 near its point of attachment to the crank arm :83. To insure that only complete strokes of the actuating handle may be made, ineachdirection, double" acting pawl 99 cooperates with ratchet teeth 100 formed on the rim of the crank disk'86'. The range ofmovement of the crank disk 86 is determined .bya stop block 101, and by a fixed stud 103 which is carried bytthe stop 'blockand'projects outwardly therefrom. The stop blocklOl is secured against the main side plate 39 andis engaged at one side by an inturned 'anm 102 on the crank-disk 86, to arrest thevmovement of the machine as each operation is completed. The stud 103 is en ged by an edge of the crank disk 86 to hmit. the "forward movement of the disk. The transverse rod 104 is slidingly supported in slotted openings 105 in the main side plates 39 and 40. It also extends through a slotted opening 106 (Fig. '3) in each of the rack bars 52. .The two ends of the :rod 104 are engaged withthe notched lower-ends of two depending oscillating plates 107uone'at each :side 'of *themachine. *"Each of :the' plates 1'07 is swung, during apart of the oscillation of the main' shaft 82 in each direction, by a cam roller '109, carried by the adjacent crank arm 83 or 84, which enters a flaring cam slot 108 in the corresponding plate. 7
It is of importance that the power required to operate the machine be substantially uniform, whatever the number of keys in use. To this end a variable friction drag is provided by the following means :-A pair of washersllO are mounted upon the shaft 104 to bear against opposite sides of each rack bar. Springs 111, coiled about the shaft, react between the washers of ad jacent bars, thus developing friction between the washers and such of the bars as are inactive. As the'active bars travel with the rod 104 they move-without friction. It follows, therefore, that the load and the friction drag vary inversely with variations in the number of rack bars in action. So, too, the effort required in tensioning the springs is rendered approximately uniform, for while the resistance to the return of the handle varieswith the number of bars in action, there is a corresponding variation,
:inversely, of the friction drag.
As is'customary, the indicator wheels 51 of the accumulator 25 are normally engaged with the rack bars 52 only during the return movement of the latter. Furthermore, when a total is taken the indicator wheels 51 are engaged with the rack bars 52 only during the outward movement of the rack bars. In the taking of a sub-total, the indicator Wheels 51 are engaged with the rack bars 52 during both their outward and return moveinents. The engagement and disengagement of the indicator wheels 51 and rack bars 52 is accomplished by vertical movement of the spindle 112 on which the indicator wheels are mounted. This spindle is guided by having its ends seated in vertical extended notches 113 (Fig. 2) in the ends of the accumulator bracket 26. The spindle 112 is supported in the ends of a bail-like frame 114, hereinafter termed the accumulator frame, which swings upon a transverse tierod 115. This tie-rod in turn has a swinging movement and is part of a rocking frame which also comprises the bell-crank levers 116, one at each side of the machine. The bell-crank levers 116 each have one arm pivotally secured against the accumulator bracket 26, as at 117. A spring 118 acts between the other arm of one of the bell-crank levers 116 and a fixed stud 119, to normally hold the spindle 112 in elevated position.
When an oscillating control shaft, as 85, is employed, vertical movement of the indicator wheels 51 is most conveniently accomplished by the turning of an oscillating plate 120. As shown, this plate is pivotally secured against one of the side plates, as 40.
of the mam frame adjacent its forward end,
as by a stud 121. Under these circumstances a short link 122 connects the plate 120'with one of the arms of the adjacent bell-crardr lever 116. While the spring 118 normally serves to hold the spindle 112 in elevated position, a second sfirin 123, acting between the link 122 and t e pFate 120, serves to hold the spindle 112 in depressed position when the point of connection of the link 122 with the plate 120 has passed below the level of the stud 121. By the use of the spring 123 the need of extreme accuracy in fitting the parts is obviated. i
In theform of construction which is more particularly illustrated in Figs. 2, 7 and 9, a flanged disk 124 having three studs 125, 126
and 127 ,is mounted upon one end of the con-' trol shaft 85, and two links 128, 129, are rovidedfor communicatin motion from t ese studs to the plate 120. he link 128 is effective for turning the plate 120 in both directions during the normal operation of the machine. On the other hand, the link 129 is effective for turningthe plate 120 in both directions during the taking of a total. In taking a sub total, the link129 is eifectiveto turn the plate 120 in one direction, and the link 128 1s effective to turnthe plate 120. in the opposite direction. When a non-add key,
as 130, is used, neither of the links 128 or 129= is effective.
The links 128 and 129 are pivotally connected with the plate 120 at opposite sides of its center, as at 131 and 132. The link 128 is formed with a hooked end 133. In the normal operation of the machine, the
hooked end 133 of the link 128 is engaged upon one side by the stud 126 as the control shaft 85 approaches the limit of its forward movement, and upon the other side by the stud 125 as the control shaft ap roaches the limit of its return movement. he link 129 is formed with oppositely facin shoulders 134 and 135. When this link is effective the shoulder 134 is engaged by the stud 127 at the beginning of the forward movement of the control shaft 85. Near the end of the forward movement of the control shaft 85 the stud 125 passes under the rear end of the link 129 for engagement with the shoulder 135 at the beginning of the return movement of the control shaft 85. When a sub-total is taken the stud 127'is engaged with the shoulder 134 at the beginning of the forward movement of the control shaft 85, but the link 129 is moved to an inoperative position at the end of the forward movement of the control shaft. The indicator wheels 51 are accordingly not lifted out of engagement with the rack bars 52 until the stud 125 becomes engaged with the hooked end 133 of the link 128.
The link 129 is normally supported in elevated position out of the path of the studs 125 and 127. For this purpose it rests in the notched arm 136 of a vertically mov able bracket 137, to which the stem 138 of the total key 139 is connected. This method of supporting the link129 permits of the lifting of the link for the engagement of the stud with the shoulder by the cam engagement of the stud with the rear end of the link. As shown, the bracket 137 is formed with a vertical slot 141, and is slidingly held against the side plate 40 by a stud 142 which runs in this slot. A spring serves for elevating the bracket 137 and total key 139. To prevent movement of the total key 139, except when the machine is at rest or the control shaft 85 has reached the limit of its forward movement, the flange of the disk 124 extends into the path of an outstandin arm 143 carried by the bracket 13?, but t 1e said flange has notches 144 and 145 which respectively register with the arm 143 when the machine is at rest and when the control shaft 85 has completed its forward movement.
The movement of the link 128 to inoperative position may be accomplished by down ward movement of a sliding plate 146, to which the stem 147 of the non-add key 130 is connected. As shown, the link 128 is formed with a lon itudinally extended notch 148, and a stud 149, carried by the plate 146, runs inthis notch. The plate 146.is slidingly held against the side plate 40 by a stud 151 which passes through a vertical slot in the plate. A spring 152 serves to normally hold the non-add key 130 in elevated position. As it is desirable that depression and release of the non-add key 139 should only be permitted when the machine is at rest, the plate 146 is formed with a 1119; 153 which extends over the flange of the disk 124. When the machine is at rest, the lug 153 registers with the notch 145 in the said flange. Since the movement of the control shaft 85 is not sufficient to bring the opening 144 into register with the lug 153 at any time, the non-add key 130 is not released. after depression, until the machine again comes to rest.
In the form of construction illustrated in Fig. 19, all of the movements of the oscillating plate 120 are accomplished through a single actuating link 154, and the flanged disk 124 is supplied with only two studs and 156. This form of construction does not so readily lend itself to the use of a nonadd key. and none is shown. The link 154 is formed with two sets of oppositely facing shoulders 157. 158. and 159. 160. the two intermediate shoulders 158 and 159 being the opposite edges of a depending finger 161 of substantial length. In this instance the elevation of the link is controlled by the position of the total key 139. For this purpose the link 154 rests in the notched arm 136 of the sliding bracket 137. In the nor mal or elevated position of the link 154, the stud 155 engages the shoulder 159 for advancing the link 154 as the control shaft 85 approaches the limit of its forward movement. The stud 156 engages the shoulder 158 to return the link. 154 as the, control shaft 85 approaches the limit of its return movement. When the total key 139 is depressed, the stud 156 engages the shoulder 15.7 for advancing the link 154 at the beginning of the forward movement of the control shaft 85, and thestud1 55engages the shoulder 160 to return the link 154 when the controlshaft 85 begins its return move ment. Engagement of the stud 155'withthe shoulder 160 is ermitted by a lifting of the link 154 throng a cam engagement ofthe stud 155 with the rear endof ,the link. In event the total key 139 is released when the control sha ft 85,has reached the limit of its forward movement, the link 154-is not returned until the stud 156 engages the shoulder 158 and a sub-total is taken.
Depression of the total key serves both to release all of the rackbars 5 2"and to clear the keyboard,45, as .usu al. In the construction shown this, is accomplished a swipging of the key lock andracklock plates64, 65 (Fig. 4). For this purpqsea comb 161 (Fi 5) extends transverselythrough the mac ine immediately'in rear of .the inain frame. The teeth162of this comb serve as wedges for separating the plates 64,165, of each set. To'provide' a supportffoi' the comb 161 its two ends, 163 and. 164, are turned forwardly and pivotally secured against the side i lates 39 and 40 respectively, as at 165 ig. 1) and; 166 (F i 2). One of these comb ends, as 164, extends beyond the corresponding pivot 166into the path of a stud 167, carried by the slidin plate 137, which is depressed by the tota ke 139.
he comb 161 also serves for clearing the keyboard 45 as the control shaft 85 hp- 0 proaches its position of rest after each operation. As shown, a pawl plate 168 (Fig. 1) is pivotally secured against the comb end 163. The lower end of this awl plate extends into the path of astu 169 which is 15 secured against the crank disk 86 u on the inside of the same. During the orward movement of the control shaft 85 the stud 169 lifts the pawl plate 168 without lifting the comb 161. On the other hand, swinging 120 of the pawl late 168 in the other direction, independent y of the comb 161, is prevented by providing the pawl plate with a projection 170 which extends ,over the pivot 165. As the crank disk 86 approaches the limit 12,5 of its return, movement, the stud 169 accordingly serves to engage the-lower end of the pawl plate 168 and lifts the comb 161 to clear the keyboard 45.
YVhen the repeat key, as
171,;isused, the is:
pawl plate 168 is lifted out of the path of the stud 169. For this purpose a lever 172 (Figs. 1 and 14) is pivotally secured against the corresponding side plate, as 39, at 173, and one end of this lever is connectedwith the stem 174 of the repeat key 171. The other end of the lever 172 extends under a shoulder 175, formed on the pawl plate 168. To prevent depression of any of the keys 6O durin the operation of the machine, the keyboard lock 75 is desirably raised to'effective position immediately at the beginning of each forward movement of the actuatin handle 80. The raising of the keyboar lock 75 is accom lished by a sprin 176 (Fig. 1), but the key oard lock is held in depressed position when the machine is at rest. As most clearly shown in Fig. 15, one of the ends 78 of the he board lock 75 is extended rearwardly an downwardly beyond its pivot, and the inwardly facing stud 93 of the link 87 (Fig.18) projects a sufiicien't distance beyond the link part 91 for engagement with this member. While the, key lock end 78 must be released by the stud 93 immediately at the beginning of each operation of the machine,'it is necessary that the key lock 75 be depressed a sufficient time; before the completion of each operation of the machine for the clearing of the keyboard 45 by the comb'161. To this end "a pawl plate177, controlled by a spring 179, is mounted on the. ke lock end 78 and extends into the path of t e stud 93. During the upward and forward movement of the link 87, the pawl plate 177 yields to the stud 93 and the lifting of the key lock 75 by its spring 176 is permitted as soon as the stud 93 becomes disengaged from the downwardly extended portion of the key lock end 78. Upon the return ofv the link 87 the yielding of the pawl plate 177 is limited by the engagement of this pawl plate with the pin, as 178, through which one end of the spring 179 is connected to the key lock end 78. The engagement of the stud 93 with the front edge of the pawl plate 177 accordingly serves to unloc the keyboard 45 before the comb 161 is raised by the engagement of the stud 169 with the front edge of the pawl plate 168.
A set of swinging hammers 180 (Fig-13), one for each type bar 31 to 38, inclusive, serve for forcing the type bars against the platen 28 to accomplish the printing operations. These hammers are loosely pivoted upon a transverse shaft 181. This shaft is journaled in the side plates 47 and 48, and atone end .it projects throu h the corresponding side, plate, as 47. otation of the shaft 181 in one direction serves for restoring the hammers 180 after their operation. For this purpose a pair of cranks 183 are fixed upon the shaft 181, at opposite ends of the row of hammers, and a restoring rod 184 extends between the cranks 183 in front of the hammers.
Each hammer 180 is actuated by a separate spring 185 (Fig. 13). Each of these springs extends from the corresponding hammer to a fixed transversefr'ame memher 186, which also serves to guide the ty e bars 31 to 38 inclusive at their upper-endh. Each hammer 180 acts u n the corresponding type bar 31 to 38, t rough-a lever 187. These levers are pivotally' supported upon a fixed transverse rod 188, one of the levers being alined with each of the type bars and with a stud 189 carried by the corres onding hammer 180. At their upper en s the levers 1 87 extend above the pivot rod 188 for engagement with the type bars in substantial alinement with the platen'28.
The printing hammers 180, are normally held against'movement by a set of hammer locks 1900i 1911 The hammer lock 190 controls "the hammer, 180, "which actuates the ty e bar 31 for printiii'g' the clear signal. he remaining-hammer locks '191'control the hammers "180' which adtuate the fig ure type bar's""32' to 38 inclusive. The hammer locks 190, 191, are pivotally mounted upon a transverse rod 192, carried by a swinging frame :193 and hereinafter referred to as'th'erectifying frame. The rectifying frame 193. is in,turn carried by a transverse shaft-"194. This shift is 'also journaled in the'side plates '47, 48, and rojects through the corresponding side p ate, as 47, atone end. In their advanced positions (Fig. 3) the hammer locks 190, 191, are held against the front of the cross-piece 195 of the rectifying frame 193. For this purpose a se arate spring 196 extends from the lower end of'each hammer lock 190 and 191 to a lower cross-piece 197 of the rectifying frame 193. 1
The rear edge of the cross-piece 195 of the rectifyingframe' 193 serves to'aline the type for printing by e'nterin one of a series of notches 198 provide at the front end of the arm 57 of each bell-crank lever 55 (Fig. 1.3). As shown, the rectifying frame 193 is swung rearwardly immediately prior to, theprlnting operation, as by the engagement of a crank pin 206 (Fig. 7 mounted in a crank arm 199 on the control shaft 85, with acrankarm 200 (Fig. 6) carried by the Ip'rojecting end of the shaft 194. 'Preferab y the crank pin 206 also serves for mov ng the restoring rod 184 (Fig. 13) out of the path of the hammers 180 immediately prior to the release of the hammers by the hammer locks 190, 191. For this purpose one arm of a bell-crank 1ever 182, fixed upon the proiectin end of the hammer shaft 181, 1s forme with a notch 201, and a second bell-crank lever 202, pivotally' secured against the side plate 47 upon the "outside of the same, as at 203 (Fig. 6), carries a cam roller 204 at one end for entering the said notch 201. The other end of the bell-crank lever 202'-is formed with a notch 205 for receiving the crank pin 206 when the control shaft 85 approaches the limit of its forward movement. A spring 207 acts between the bellcrank levers 182 and 202, and serves to in sure a smoother operation while the partsare being restored to their normal positions by the enga ement of the crank pin 206 with that part 0% the bell-crank lever 202 which is below the notch 205 during the return movement of the control shaft 85. If the spring 207 is of suflicient strength to overcome the resistance ofall ofthe hammeractuating springs 185, the main spring 81 is largely relieved of the work of restoring the hammers 180.
As the type bar 31 is supplied with only a 1 single type character, no vertical movement of it is required. This type bar accordingly has a fixed ivot, as upon a transverse rock shaft 208 Fig. 13); A sprin 209 (Fig. 5), coiled about this shaft ad acentE oneiend of the same, serves for swinging-the typebar 31 away from the platen 28. The
type bars 32 to 38 inclusive are normally held out of contact with the platen 28 by helical springs 210 (Fig. 13), one of which acts betweenthe lower end of each t pe bar- 32 to 38 and the c'orrespondingbe l-c'rank lever 55.
Withdrawal of the hammer locks 191 only when characters are to be printed from the corresponding type bars 32 to 38, is conveniently accomplished by providingeach of the said hammer locks with a forwardly p'rojectin stop shoulder 211 (Fig. "13). It follows rom this construction that rearward movement of the rectifying frame 193, when any one of 'the bell-crank levers 55 is in the'normal position illustrated in Fig. 3, serves only to swing the lower end of the corresponding hammer loclr'191 rearwardly without withdrawing the upper end of the hammer look from the corresponding hammer 180. On the other hand, when any one of the bell-crank levers 55 has been raised by a forward movement of the corresponding rack bar 52', as in Fig. 13. rearward movement of the rectifying frame 193 causes the stop shoulder 211 of the corresponding hammer lock 191 to fulcrum against the forward end of the bell-crank lever 55 and swingsthe upper end of the hammer loc'k forwardly to release the corresponding hammer 180.
A convenient arrangement for printing the significant zeros is illustrated in Fig. 10. As shown, each hammer lock 191, except the one at the extreme right-hand end of the series, is provided near its upper end with a lateral projection 212. which extends in front of the upper end .of the next adjacent hammer 10010191 to the left. As
31 with the corresponding printing hammer 180 only when the accumulator 25 is- For this'purpose each of the indi cator--wheeis 51 of the accumulator is clear.
formed with a notch 214-. (Figs; 3 and 13). A comb 215" (Fig; 11) extends-under the indicator wheels 51 and the notches 21401 all of'the indicator-wheels register -with'=the teeth of'the com'b 21-5 onlydwhen the accumulator 25 isclear. When this condition exists the comb-215 maybe raised-toenter its teeth in the notches 214, At other times the raising ofthe comb '215is. lin'iited by the engagement of one or more was teethwith ofthe 'correspondihg' 'indicator wheels. Eurthermor'e 'as the accumulator 25 is clear'whenatot al or sub-'total is being'fprin'ted, provision is-desirably also made to prevent the raising of the comb 215 at this'time; viz:when the accumulater frame "114 hasbsen lowered during' the outward movement ofthefrack bars 52.
As shown, the conib215 is carried tween a pair of crank arms, as 216- (Fig, 13), one at each end of the comb These crank arms are fixed upon a rock shaft 217, T and this rock shaft extehds between and is journaled at its opposite ends in the two ends of the accumulator frame 114/ The rock shaft 217 aecordin ly rises and falls with the accumulator rame 114. Movement of the comb 215 is confined to avei'tical plane by providing it at each end with a slotted am 218, which engages the spindle 112 upon which the indicator wheels 51 are mounted. fThG rock shaft 217 is also provided with a crank arm 21'9 intermediate its ends. This last-mentioned crank arm carries a crank pin 220. The function of these parts is to provide for the withdrawal of the hammer lock 190 when the raisin of the comb 215 is permitted. To this end a link 222, having a notched forward end for receiving the pin 220, extends rearwardly from this pin over the transverse frame member 41, and over the control shaft 85. At its rear end the link 222 is turned upwardly and has a "pin and slot connection 223'with the hammer lock 190. This pin and slot connection permits rearward movement of the rectifying frame 193 without dislodging the hammer lock 190 from the corres ondin hammer 180.
It will be un erstoo that raising of the comb 215 and withdrawal of the hammer lock 190, as in Fig. 13,, are accomplished by forward movement of the link 222. To prevent raising of the comb 215 when a total or sub-total is toqbe printed, the link 222 is eq ipped with apivoted latch member 2224. hen the accumulator frame-114 has been lowered in advance of outward movement of the rack bars 52, as in taking a total orsub-total, the link 222 is lowere at itslforward end and the latch becomes engaged with the transverse frame member 41, as inFig: L2. This preventsforward movement of the link 222, notwithstanding the fact that when the printing-operation is to be accomplished the notches 2140f all of the indicator=wheels 51 will have been brought into register with the teeth of the comb 215. On-the other hand, whena first item is to be printed the link 222 is moved forwardly in advance of the depressiomof the accumulator frame 114. Under these circumstances the forward end of the latoh 224 ridesupon the top of the transverse frame member 41, as in Fig. 13. v
When forward movement ofthe link 222 is permitted this is accomplishedas the actuating handle a preaches the .endof itsjforward stroke. 1; or this purpose the crank arm 199 onthe control shaft is formedwith a contact shoulder 221. In order that the operation of the machine may! not be interferedwith when the link 2221s; held against forward movement, a yielding stud: 225 is carried by the link for cooperation with the contact. shoulder 221.. As shown, the stud 225 is :mounted at the lower end of=a crank'arm 226, which has pivotal connection with the link 222, and a stout spring 227 acts .between the stud 225 and the link for causing the link to move with the stud except when such movement is pre vented.
The shifting of the ribbon guides 29, 3O (Fig. 5), for differentiating items, .totals and non-add items by. printing thesame from different parts of amulti-colored ribbon,- is conveniently accomplished in the manner now to be described, ,The ribbon guides 29, 30, are respectively -:located at.
the upper ends of the two sides 228 and 229 of anupright sliding frame, also includes a transversefront plate. 232, connecting the side members 228 :and 229 intermediatetheir ends. Movement of theframe is guided by forming each side mem ber 228, 229, with a vertical slot 230 (Fig. 2), which receives andnstandin stud 231 carriedby the correspondin si e plateAT or 48. gAt their lower endst e frame membars. 228 and. 229 are pivotally connected with crank arms 233 carried by the rock shaft 208 (Fig. 3);
Movement of the rock shaft 208 is varied iii-accordance with the part ofthe ribbon to This, frame be used for printin As shown, the rock shaft 208 is provide at one end with acrank arm 234. A link 235 (Fig. 2) connects the.
crank arm 234 with a crank arm 236, which is mounted upon theinner end of another transverse rock shaft 237. The rock shaft 237 extendsoutwardly from one side ofthe recordingrmechanism 27 to the plane of the adjacent sideof the machine. As shown, it is journaled.
port the link-for holding the ribbon guides.
29 and 30 in: their lowest position.
At itsiforward end the link .240 has a pin and slotjeonnection 24:2, 243, with vthe adj a-. cent plate 107, theslot 243being of different len at different levels, and the upper andshortest .part of the slot beingonly equal to the width of the pin 242. It follows from this construction that if the link 240'is depressed to bring the shortest part of; the slot 243 into alinement with the pm. 242, the link 240, will beunoved. with-the,plate 107 throughout the full range of movement of the latter and the ribbon-guides 29. 30,'are completely elevated. On the other hand, as the link 240. is normally held in elevated position by the spring 241, the longest part of the slot 2A3 is.normally alin'ed with the pin 242, and'thisfpin is idle:during its travel throughout the ull length of the -slot.. If the link 240 's partly depressed, the pin m will be effective to raise the ribbon guides'29, 30, a sufiicient distance .to present the intermediate part of the ribbon for printing.- In event only-a two-colored ribbon is used. the printing of the upper and lower parts. of the several characters will then besaccomplished with differently colcred parts of the ribbon.
Depression of the link 240. to cause a complete. elevation of the-ribbon guides 29, 30, is preferably accomplished when the total key 139 isused. This is most readily brought about by making the stud 167, which is effective for clearing the keyboard. long; enough to also extend over the link 240 (Fig. 2). The totals and sub-totals are accordingly printed from a. different part of the ribbon than is used-during the normal operation of the machine. On the other hand, a artial. depression of the link 240 is desire -when the non-add key 130 is used. For this purpose a separate key 244 is mounted in the keyboard 45 adj acent the nonadd key; 130. As shown, the stem 245 of the tone end in the adjacentvs sideyplate 4 .of. the Iecording.mechanism.; Thefiother end,is journaled in a bracket This ,crank arm isconnected with a,-
key 244 is pivotally connected with a swinging plate 246. This plate is pivotally secured against the main side plate 40 at 247, and carries a stud 248 for engagement with the upper edge of the link 240. A spring 249 acts between the swinging plate 246 and a fixed support for raising the key 244 and the plate.
Preferably provision is made for preventing use of the non-add key 130 exec t when the key 244 has been depressed. shown, the sliding plate 146, which is effective for depressing the link 128, is formedwith a projection 250 which normally overlies an extended part 251 of the swinging plate 246. When this construction is employed, depression of the key 244 to move the extended part 251 of the swinging plate 246 out from under the pro'ection 250 is required to permit the use 0 the non-add key 130. Furthermore, when the non-add key 130 has been depressed, the projection 250 lies in rear of the extended part 251 of the swinging plate 246 (Fig. 8) to prevent the-return of the key 244 until the non-add key 130 has been released. Printing of the non-add items from an intermediate part of the ribbon is thereby insured.
\Vhile the construction shown permits of the operation of the type bar 31 to print a signal with a non-add item, in event such an item is printed when the accumulator 25 is clear, the printing will, nevertheless, be distinguished from a first item by the use of an intermediate part of the type ribbon. Furthermore, as the printing of non add items does not affect the accumulator, the operation of the type bar 31 to print signals with the non-add items when the accumulator is clear, does not in any way interfere with the subsequent operation of the type bar 31 to print a signal with the next added item. In other words, the type bar 31 always operates to print a signal when the accumulator 25 is clear, except during the printing of a total or sub-total. The present construction is accordingly distinguished from those in which the printing of a signal is determined by a previous setting of parts which would be disturbed by the printing of a non-add item. Although the invention contemplates that both totals and sub-totals may be printed from the same part of the.
type ribbon and will therefore be shown in the same color, the totals and sub-totals will be readily distinguished by the fact that the next item, whether a non-add or an added item, following a total, will be accompanied by the signal printed from the type bar 31, whereas this type bar will not be operated during the printing of the next item following a sub-total. It will be understood that if a plurality of non-add items are printed, next following the taking of a total,
the signal printed by the type bar 31 will be repeated with each of these non-add items and will also be shown with the first succeeding added item.
The machine may be largel constructed from stamped metal parts wit out machine finishing, if the parts are so shaped as to avoid the use of cut edges as bearing surfaces for moving members. To this end the rack bars 52 are each formed with hori zontal flanges 252 (Fig. 4) and 253 (Fig. 5). These flanges slide through openings 254 in the transverse frame member 41 or 42, and each opening 254 has enlarged ends 255 to prevent contact of the margins of the opening with the corresponding rack bar, either at the angle between the rack bar and its said flange 252 or 253, or at the free edge of the flange. Furthermore, smooth supporting bearings for each rack bar 52 are provided by securing a separate plate 256 against the transverse frame members 41 and 42 below the openings 254. The plates 256 are each formed with a series of inturned lugs. as 257 (Fig. 3). These lugs extend through the openings 254 under the flange 252 or 253 of the correspondin rack bar Preferably the width an spacing of the lugs 257 is such that the free edge of each flange 252 or 253 extends beyond the adjacent edge of the corresponding lug 257. There IS accordingly no requirement for imparting a smooth finish to the free, edges of the flanges 252 and 253.
An arrangement whereby a relatively small number of inexpensively formed and readily assembled arts may be-used for supporting and mi ing the key stems 61 is more articularfy illustrated in Figs. 1, 3, 16 an 17. As shown, a separate plate 258, having a series of inturned lugs 259 at different levels (Fi 16 and 17), is secured against each of t 1e main side plates 39, 40, upon the outside of the same, the lugs 259 projectin through the corresponding side plate. T e lugs 259 serve as brackets for supporting a series of shelves 260. The shel es 260 have slots 261 for receiving the key stems 61, and they are held to their seats upon the bracket lugs 259 by downward pressure of the ke springs 262. Each shelf 260 has a rib ed reinforcing plate 263, secured thereto along its upper surface, the forward ed e of the reinforcing plate being formed with notches to clear the key springs 262.
At its rear edge each shelf 260 extends under the bracket lugs 259 of the next higher set. Each shelf 260 is also formed with a pair of depressed lugs 265, 266, at each end, for engaging the front and rear edges, respectively, of the bracket lugs 259 upon which the shelf is supported. In assembling the parts each shelf 260 is first applied in a position sufficiently in rear of that the front and rear edges of t which it finally assumes to permit the hooked lower ends 267 of the key stems 61 to pass the rear edge of the next lower shelf or the rear edge 0 the inturned flange 268 of the front end plate 43. At this time the rear ed e of the newly applied shelf is located a su stantial distance under the bracket lugs 259 of the next higher set, and the front edge of the shelf is supported in elevated osition through the fact that the depressed ugs 265 are resting upon the top of the bracket lugs 259 upon which the shelf is finally to be su ported. The correspondin kc stems 61 aving been introduced an he d in depressed position, the shelf 260 is moved forwardly until the hooked lower ends 267 of the key stems 61 become engaged with the rear edge of the next lower shelf or with the rear edge of the flange 268 an the depressed lugs 265 have passed the front edges of the corresponding bracket lugs 259. The key springs now serve to depress the shelf and to firmly hold it in position with the depressed lugs 265 and 26,6 en aged with lie bracket lugs 259.
In some instances it may be desirable to avoid the necessity of holding the total key 139 down until after the operating handle 80 has begun its return movement to insure the clearing of the machine. This may be accomplished by the use of the construction illustrated in Fi s. 20 and 21. In this arrangement the Key 139 serves for takin both a total and a sub-total, the clearing o the machine after. taking a sub-total being prevented by lifting the total key at the end of the forward stroke of the operating handle. As shown, two vertical sliding plates 269, 270, are employed for controlling the link 154. The spring 140 is connected with the plate 270, while the stem 138 of the total key 139 is connected with the plate 269. The plates 269 and 270 each have slots 271, 272, for receiving guide pins 273 and 274 carried by the main side plate 40, and the end of the key stem 138 e06 rates with a shoulder 275 on the plate 2 0 to cause downward movement thereof when the total key is depressed and restoration of the total key by the spring 140, but permitting a manual restoration of the total key without lifting the plate 270.
The plate 270 is formed with the same arm 136, having a notch 276 (Fig. 22) for receiving the link 154 that is provided on the bracket plate 137 (Fi s. 9 and 19) for receiving the correspon ing link 129 or 154. The plate 270 also carries the stud 167 which engages the forwardly extended end 164 of the comb 161, to clear the keyboard when the total key is depressed. In this instance, however the flanges of the disk 124, while arranged to permit the depression of both of the plates 269 and 270prior .to the beginning of a forward stroke of the operating handle, permits only the plate 269 to be lifted at the end of the forward stroke of the handle. As the plate 269 carries a stud 277 which extends under the link 154 the lifting of the plate 269 serves to raise the link 154 in the manner required when a sub-total is taken, but the lifting of the plate 270 being prevented, the spring 140 cannot act to 11ft the total key and this must be manually accomplished. This construction also has the advanta e of preventing the depression 01'- the tota key at the end of the forward stroke of the operating handle.
In the arrangement s own in Fi 20 and 21, the plates 269 and 270 have see an outturned stud 278, 279, and both of the studs register with the aiotch 144 of the flanged disk .124 when the machine is at rest, but 0111 the stud 278 of the plate 269.1'egisterS wit the notch 145 of the flanged disk 124 when the control shaft 85 is at thelimit of its forward movement. It follows that in event the plate270 has been depressed prior tolthe beg-inn of a forwardstrokeof the operating han e 80, it cannot be raised until both the forward and return strokes of the handle have been com leted. On the other hand, the stud 278 of t e plate 269 me pass through the notch 145 of the flange disk 124 to permit a manual restoration of the total key at the end of the forward stroke of the handle.
The form of construction illustrated in Figs. 20 and 21 also has provision for preventing the depression of the total key 139, following the printing of an item, until after a pause in the operation of the machine suflicient to insure that all of the transfer devices of the accumulator shall have completed their movement. When the machine is equipped with recording devices there is no occasion for the operator to read the total upon the register wheels after printing the last item. The operator may therefore undertake to clear the machine immediately upon the completion of the return movement of the handle 80. For this purpose he will depress the total key 139 and pull the handle forwardly again.
In the particular form of accumulator illustrated in the drawings, the operation of the transfer devices is not interrupted until the indicator wheels 51 are depressed for reenfiagement with the rack bars 52. During t e normal operation of the machine the reengagement of the indicatof wheels 51 with the rack bars 52 does not occur until the handle 80 has reached the limit of its forward movement. The operation of the transfer devices may therefore be continued during the forward movement of the handle 80, and a completion of the movement of the transfer devices is insured. On the other hand, depression of the total key 139 brings
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746385A (en) * 1946-09-02 1956-05-22 Precisa A G Rechenmaschinenfab Type bars for calculating and bookkeeping machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2746385A (en) * 1946-09-02 1956-05-22 Precisa A G Rechenmaschinenfab Type bars for calculating and bookkeeping machines

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