US2055525A

US2055525A - Cash register

Info

Publication number: US2055525A
Authority: US
Publication date: 1936-09-29
Anticipated expiration: 1953-09-29

Description

Sept. 29, 1936. R. FELLENBERG CASH REGI STER Filed May 16, 1934 4 Sheets-Sheet 1 3m entor Richard F ellenberg His attorney Sept. 29, 1936- R. FE/LLENBERG CASH REGISTER Filed May 16, 1954 4 Sheets-Sheet 2 FIG. 5

Z'snventor Richard Fellenber] His attorney Sept. 29, 193 R. FELLENBERG CASH REGI STER Filed May 16, 1934 4 Sheets-Sheet 3 HRIIIUIIIIL Richard Fellenbe rg His Gttomeg Sept. 29, 1936.

R. FELLENBERG CASH REGISTER Filed May 16, 1934 4 Sheets-Sheet 4 Zhwentor Richard Fellenberg M His Gttomeg Patented Sept. 29, 1936 UNITED STATES PATENT OFFICE CASH REGISTER Application May 16, 1934, Serial No. 725,995 In Germany May 29, 1933 18 Claims.

This invention relates to improvements in cash registers of the type illustrated and described in Letters Patent of the U. S. No. 751,611 issued February 9, 1904 to Thomas Carroll and Patent No.

5 1,594,167 issued July 27, 1926 to Frederick L.

Fuller.

Broadly, it is an object of this invention to incorporate in machines of the type referred to in the above patents mechanism to print totals directly from the totalizer wheels.

In such registers, where the totals are printed directly from the totalizer wheels, and the totalizer reset by means of an insertable key or Wrench, it is necessary to incorporate mechanism in the machine to enforce proper operation of the total printing and resetting mechanisms. In order to safeguard against fraud or mal-operation of the total printing and resetting mechanism, it is necessary to permit access to such mechanisms only to those in authority. Therefore, it is, also an object of this invention to provide means to enforce correct operation of the totalizer resetting mechanism and the total printing mechanism.

7 Another object is to provide mechanism to prevent operation of the machine and to give access to the total printing means in sub-total taking operations.

Another object is to supply locking means to prevent operation of the machine, give access to the total printing means and the totalizer resetting means in total taking operations.

Still another object is the provision of means to render the total and sub-total printing means inoperative after one impression has been made.

A further object is to furnish means to prevent more than one operation of the total and sub-total printing means for each operation of the sub-total locking means.

Another object is to supply means to prevent more than one operation of the total printing means for each operation of the totalizer resetting mechanism.

Another object is to provide means to prevent removal of the reset wrench once it is properly inserted in the machine until the total printing lever has been given an initial movement and the wrench has been fully operated to perform a complete resetting operation.

Another object is the provision of means to stop the totalizer resetting mechanism after one resetting movement thereof, said stopping means also adapted to actuate mechanism that enforces machine operation between resettings of the totalizer.

A further object is to supply means to shift the inking ribbon when the totalizer reset wrench is inserted in the machine in order that totals may be printed in a distinctive color.

A still further object is to provide means to prevent operation of the total and sub-total printing means when a slip of record material is not inserted therein.

With these and incidental objects in view the invention includes certain novel features of construction and combination of parts, the essential elements of which are set forth in appended claims and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part of this specification.

Of said drawings:

Fig. l is a side elevation of the machine, depicting the locking mechanism for controlling the totalizer resetting and total and sub-total printing mechanisms.

Fig. 2 is a side view of the mechanism that con- A trols the manipulation of the total printing lever and the resetting wrench.

Fig. 3 portrays the mechanism that controls the X and Z printing segment and the resetting special counter.

Fig. 4 is a side View of a part of the mechanism illustrated in Fig. 3, showing the positions these parts occupy when the reset wrench is inserted in the machine.

Fig. 5 is a front fragmentary view of the reset counter and the mechanisms shown in Figs. 3 and 4.

6 is a detail view of the reset wrench.

Fig. 7 is a side view illustrating the mechanism for selecting and operating the transaction special counters.

Fig. 8 is a detail View of a part of the mechanism shown in Fig. '7.

Fig. 9 is a detail View as observed from the left of the machine, depicting in particular the full-stroke device for the total printing mechanism.

Fig. 10 is a front view of the transaction special counters and their operating mechanism.

Fig, 11 is a fragmentary vieW as observed from the rear of the machine, illustrating the total impression hammer and the ribbon carrying frame.

Fig. 12 is a right side view of the impression mechanism and portrays in particular the mechanism for shifting the ribbon when the totalizer reset wrench is inserted in the machine.

Fig. 13 is a detail view of the transaction counters zeroizing mechanism.

Fig. 14 is a sectional view of the impression hammer, and depicts the slip feeler mechanism that locks the total printing lever against manipulation until a record slip is inserted in the aperture provided therefor.

General description In the instant machine the total is printed directly from the wheels of the totalizer, which serve both as accumulator wheels and as type carriers. The printing mechanism including the lever for operating the printing hammer, is accessible through a closure which is normally locked, and this locking means is controlled by a sub-total lock and a total and reset lock, the keys of which are in the possession of some authorized person. The accumulator is reset by means of an insertable wrench and the aperture for the wrench is normally obstructed by a shutter, which is controlled by the total and reset look.

When it is desired to take a reading or subtotal of the accumulator the sub-total lock is manipulated by means of the key, and this looks the machine against operation and simultaneously unlocks the closure and the total printing lever. A slip of record material may then be inserted in the printer and manipulation of the printing lever causes the sub-total to be printed.

A feeler mechanism prevents the manipulation of the printing lever until a record slip is properly inserted in the machine. After the impression is taken the printing lever is locked in moved position until the sub-total lock is turned back to locking position. This releases the printing lever, which is then spring-returned to normal position. A full-stroke device enforces complete movement of the printing lever in either direction. Each time the sub-total lock is unlocked, a step-by-step counter is advanced one unit to count the number of sub-totalizing operations.

Unlocking the total and reset lock unlocks the closure giving access to the printing mechanism. In addition the total and reset lock removes the obstruction from the totalizer reset aperture, renders the special transaction counters visible by removing the flash therefrom, and uncovers the reset aperture for said special transaction counters.

Inserting the reset wrench in the totalizer aperture sets the X and Z printing segment, unlocks the printing lever, causes one to be added on a step-by-step printing counter, and actuates mechanism thatlocks the reset wrench in the aperture until it has been turned one revolution to reset the wheels of the totalizer. However, the reset wrench is locked against rotation until the total printing lever receives initial printing movement, in order to enforce recording of the total before the totalizer wheels are reset to zero.

As in sub-totalizing operations, the total printing lever is locked in moved position and is not released until the reset wrench is removed from the machine. Removing the reset wrench from the aperture unlocks the total printing lever, which is then spring-returned to normal position. The act of inserting the total reset wrench in the aperture shifts a bi-chrome inking ribbon for the total printing device to a position where the total will be printed in a distinctive color. It is obvious that the only time it is possible to reset the special transaction counters is when the total and reset lock is unlocked.

The mechanism outlined in a general way above will now be described in detail.

Detailed description The mechanism of this invention may be incorporated in most any type of cash register where the total is printed directly from the totalizer wheels, and inasmuch as the instant invention relates particularly to locking mechanism to control the functions of the total printing and resetting mechanisms it is felt that a description of only the register mechanisms affected by the mechanisms of this invention will be suiiicient.

Sub-total control mechanism Directing attention to Figs. 1 and 5, the mechanism is enclosed in a suitable cabinet 29 secured to a' machine base (not shown). Secured on a right machine frame 30 is a sub-total lock 3!, the barrel of which carries a stud 32, which extends within a slot in an upwardly disposed extension of a lever 33 pivoted on a stud 34 secured in the right frame. A downward extension of the lever 33 has a foot 35 which cooperates with a stud 35 in a rearwardly disposed arm of a main shaft locking pawl 31 loose on a stud 38 secured in the right frame. A downward extention 39 of the pawl 31 cooperates with an abrupt surface 40 of a disk 4| secured on a main drive shaft 42 'journaled in the main frames of the machine. A spring 43 urges the pawl 31 clockwise to normally maintain a right angled projection 44 thereof in contact with the edge of a lever 45 rotatably supported by the stud 38. The lever 33 has an extension 46 which cooperates with an arm 47 of a step-by-step counter 58. A forwardly disposed arm 49 of the lever 33 cooperates with a stud 50 in a slide 5! supported by two parallel slots in cooperation with a pair of studs 52 secured in the machine frame. A projection 53 of the slide-5l normally engages an extension 54 of a closure locking bar 55 slidably mounted on. the inside surface of the cabinet 29 and urged upwardly by a spring 55 so that its upward end normally engages a hook 5'! secured to a closure 58 hinged to the machine cabinet 29. A spring 59 is tensioned to urge the slide 5| upwardly, causing the stud 50 to be held in contact with a lower surface of the arm 49 of the lever 33.

Unlocking the sub-total lock 3i revolves the barrel thereof in a clockwise direction, which by means of the stud 32 rocks the lever 33 counter clockwise causing the foot 35 in cooperation with the stud 36 to rock the pawl 3'! counter clockwise to move the projection 39 in the path of the step 55 toprevent clockwise movement of the main drive shaft 42. This movement of the lever 33 by means of the extension 45 in cooperation with the arm 47 causes one to be added on the step-by-step counter 48. Counter clockwise movement of the lever 33 by means of the arm 59 thereof, in cooperation with the stud 55 moves the slide 5! downwardly, which movement, by means of the projection 53 is obviously transmitted'to the locking bar 55 to disengage said bar from the hook 5? of the closure 58. After the closure has thus been unlocked a spring (not shown) opens the closure sufliciently to permit a finger-hold thereon, so that it may be opened the remainder of the distance by hand.

The upwardly disposed arm'of the lever 33 carries a stud 60 which extends through a slot in the rearward end of a link iii, the forward end of which is pivoted to a lever 62 (Figs. 1 and 2) fulcrumed on a fixed stud 63. A hOOk-Shaped downward extension of the lever 62 terminates in a rounded nose 64 which cooperates with the edge of lever 65 loose on a stud 65. The lower portion of the lever is (Fig. 2) has a right angled extension 6! which cooperates with a lug 68 on a total printing lever secured to a shaft '58 journaled in uprights of a front frame H. A torsion spring T2 urges the lever 69 clockwise to normally maintain the lug G3 in contact with an upward extension of the frame ii. A spring 13 tensioned between the levers 52 and 65 urges said levers clockwise to normally maintain the extension 51 of the lever 65 in the path of the lug 58 and to retain the lever 52 in its normal position. The upper portion of the lever 65 has a nose M which cooperates with a bent-over car 15 of a locking arm 16 loose on the stud and flexibly connected by a spring 1'? to the lever 65, said spring normally maintaining the nose M in contact with the ear H5. The arm 16 has a forward extension 18 which cooperates with a stud 19 in the total printing lever 69.

Referring to Figs. 1 and 2, unlocking the subtotal lock 3 i, as previously stated, rocks the lever 33 counter clockwise which movement by means of the link 6! is transmitted to the lever 52. Counter clockwise movement of the lever 62 causes the nose 64 thereof to engage and rock the lever 65 also in a counter clockwise direction to move the projection 6? out of the path of the lug 68 of the total printing lever 59. The spring 11 tends to move the arm 16 counter clockwise in unison with the lever 65, however, the stud 19 in cooperation with an angular surface of the extension 18 prevents such movement of the arm I6. Consequently the spring ll receives added tension by counter clockwise movement of the lever 55. From the foregoing it will be seen that the spring l3 (Fig. 2) normally holds the projection 6'! of the lever 55 in the path of the lug 68 to block counter clockwise printing movement of the total printing lever 653 until the subtotal lock 3! (Fig. l) is unlocked.

Directing attention to Figs. 11 and 12, secured on the shaft iii are symmetrical eccentrics 83 and 64 straddled by the bifurcated lower ends of

plates

85 and 85 loose on studs 8? secured in the side members of a printer platen frame 88 loose on a shaft 89 supported by the uprights of the front frame ll. Adjustably mounted on the side members of the platen frame "38 are identical eccentrics to, which in cooperation with the upper bifurcated ends of the plates and 36 provide a means of adjusting the platen frame and a platen block 85 in relation to a series of totalizer wheels 92. The printing totalizer wheels 92 are loose on a shaft 93 supported by a totalizer frame 94 (Figs. 5 and 12) which is adapted to move downwardly in the well known manner to engage the totalizer with the actuators, and after the wheels of said totalizer have been actuated the totalizer frame is returned upwardly to normal printing position, as here shown.

A slip feeler mechanism locks the total printing lever 63 (Figs. 2 and 14) against manipulation until a slip of record material is inserted in the printing mechanism. When a record. slip 95 is inserted in an aperture 95 in the platen frame 88 it engages an upward extension of a feeler 9i and rocks said feeler clockwise on its pivot on a bracket 98 secured to the platen frame 85. This clockwise movement of the feeler 9! disengages a hook thereof from a step out in a hub IOU secured on the shaft it (see also Fig. 11) A shield HM secured to the platen frame guides the slip 95 between the platen block 9! and an inking ribbon N12. The shield lill also holds the inking ribbon I02 away from the platen block 9! and the record strip to prevent blurring said record strip when it is inserted in the machine. It will be seen by observing Fig. 11 that the platen block 9i has raised portions corresponding to the lateral spacing of the totalizer wheels. These raised portions register with openings in the shield lei through which the platen 9i forces the inking ribbon I 02 and the record strip 95 into contact with the totalizer wheels 32 to make an impression on said slip.

Unlocking the sub-total lock (Figs. 2, l2, and 14) frees the total printing lever 69, as explained above, for counter clockwise movement (Figs. 2, and 14) to print a reading or a sub-total of the amount on the wheels of the totalizers. Moving the lever 69 counter clockwise rocks the shaft it also counter clockwise, which by means or" the

eccentrics

83 and 84 imparts a clockwise movement to the platen frame 38. This causes the platen 9! to press the inking ribbon I02 and the record slip 95 against the totalizer wheels 92 to print the amount thereon.

Counter clockwise movement of the total printing lever t9 (Fig. 2) moves the stud i9 beyond the extension l8. urge the arm 1'5 counter clockwise to move the arcuate portion of said extension "58 into the path of the stud i9 to block return movement of the printing lever 69. The lever 69 remains thus locked inoperative until the sub-total lock 3| is locked, which movement returns the lever 33 clockwise to the position here shown and allows the spring 43 to move the extension 39 of the pawl 3! out of the path of the abrupt surface 40 to free the machine for operation. Clockwise return movement of the lever 33 allows the spring i -3 (Fig. 2) to return the levers 52 and 65 also in a clockwise direction. The nose M of said lever 65 in cooperation with the ear l5 returns the arm 16 in unison therewith. There is enough clearance between the periphery of the lug 68 and the extension 6: to allow the arm 16 to move sufiiciently clockwise to cause the arcuate surface of the extension "88 to move slightly beyond the stud "E9. The spring #2 is then free to return the total printing lever 5a to normal position, the stud is cocperating with the angular surface of the extension i3, restores the arm 16 to home position, and the springs 73 and I? return the lever 65 so that the projection ET is in the path of the lug to again block printing movement of the lever 69.

Locking the sub-total lock 3! and consequent return movement clockwise of the lever 33 allows the spring 59 to return the closure locking slide 5! upwardly, which in turn allows the spring 55 to return the locking bar 55 upwardly so that the upper end thereof is in the path of the closure latch El. Shutting the closure 53 causes the hook El to latch over the upper end of the bar 55 to lock the closure 53.

From the foregoing description it can be seen that for each operation of the sub-total lock 3! (Fig. l) the total printing lever 69 can be operated through only one complete cycle of movement. It is, therefore, obvious that the number of sub-totals printed can never be greater than the number on the step by step counter 48 and if the total printing lever has been operated each time the subtotal lock 3! has been unlocked the number of subtotals printed will agree with the number on the step-by-step counter 48, which it The spring ll is then free to will be recalled,'counts the number of times the sub-total lock 3I is operated.

Total printing full-stroke device Fig. 9 clearly illustrates a device for enforcing full stroke of the total printing lever 69. This mechanism consists of a full-stroke ratchet segment I93 secured on the shaft Iii and having teeth which cooperate with the lower end of a fullstroke pawl I84. pivoted at I85 to a stationary plate I87 supported by the shafts III and 8B. A spring IIII tensicned between the pawl I64 and the plate I06 holds said pawl in position to ratchet over'the teeth in the segment I63 regardless of the direction in which the segment is moving. Moving the total printing lever 69 clockwise, as viewed in Fig. 9, to make an impression, causes the teeth of the segment I63 to engage the ratchet pawl to prevent the lever 69 from being backed up or returned until its full stroke is completed. In a like manner, a full return stroke of the lever 69 is enforced.

Total printing and total reset control lock: mechanism The printing of the total and the resetting of the totalizer to zero is under the control of a total lock I88 (Fig. 1), similar to the sub-total lock SI. The barrel of the total lock M8 carries a stud I69 which extends through aslot in the upward arm of a lever III! pivoted at III to the right machine frame. The lower end of the lever IIE! carries a stud II2 which extends through a slot in the lever 45. Normally the upper portion of the lever 45 covers an aperture IE3 for the reception of a totalizer reset wrench I I 4 (Fig. 6).

A forward extension of the lever 45 has a flat surface IIS (Fig. l) which cooperates with the stud 50 in the slide 5i. A link I I6 pivotally connects the lever 45 to a shutter I II adapted to normally cover an aperture 'I I8 for the reset wrench II B (Fig. 6), which is used to reset the wheels of an operation counter IIS (Fig. 10) and a plurality of transaction counters I28, the wheels of which are rotatably supported by a shaft I2I journaled in special counter frames I22 and I23. The shutter II'I' (Fig. l) carries a stud IZ I which cooperates with a slot in an arm I25 loose on the shaft I2I and supporting the righthand end of a flash I26, the lefthand end of which is supported by an arm similar to the arm I25 which is also loose on the reset shaft IZI. Normally the flash I26 covers an opening IZ'I in the cabinet 29 through which the wheels of the special counters are visible.

Inserting the key and turning the barrel of the lock I98 (Fig. 1) in a counter clockwise direction,

by means of the stud I89, rocks the lever IIB clockwise, which by means of the stud IIZ imparts counter clockwise movement to the lever t5. Counter clockwise movement of the lever 45 uncovers'the aperture I I3 for the reset wrench and causes the surface M5 to engage the stud 58 to move the slide 5i downwardly to unlock the closure 58 in exactly the same manner as explained for the sub-total lock mechanism. This initial counter clockwise movement of the lever 35 by means of the link I I6, pivotally connected to arm 8| riveted to lever 55 at 82, rocks the shutter III clockwise to the positions shown in dot and dash lines to uncover the reset aperture for the special counter. Clockwise movement of the shutter I II by means of the stud I2 -I and the arm I 25 rotates the flash I26 counter clockwise to uncover the opening I21 so that the wheels of the special counters are visible therethrough. Counter clockwise unlocking movement of the lever 55 by means of the projection 44 moves the pawl 31 in unison therewith to place the projection 39 thereof in the path of the step it to frustrate attempts to operate the machine during total printing and resetting operations.

Each of the totalizer wheels 32 (Fig. 5) has secured thereto a gear I28 connected by an intermediate gear I29, loose on a shaft I33 supported by the totalizer frame 9 to an actuating gear I34 loose on a reset shaft I35 supported by the totalizer frame 94. Each of the gears I34 carries a pawl adapted to be engaged by a lateral groove in the reset shaft I35 to revolve said gears in unison therewith when the shaft is turned counter clockwise, as viewed in Fig. 3 by means of the reset wrench H4 (Figs. 4 and 6). resetting movement of the gears I34 by means of the gears I28 and I29 is transmitted to the totalizer wheels 92 in order to reset said wheels to zero position. Secured on the righthand end of the reset shaft I35 is a partial disk I 36 the hub of which has a clutch cut I 3? adapted to receive tenons I38 (Figs. 3 and 6) of the reset wrench IIAI.

Calling, attention to Fig. 3, the upper portion of the clutch cut I3'I is normally engaged by a bentover tongue I39 of an arm I lfi loose on a stud III secured in the totalizer frame 96. The for ward end of the arm I49 is pivot-ally connected by a link I32 to a symbolprinting segment i 32 loose on the totalizer shaft 93. The rearwardly disposed portion of the arm I40 has a right an gled extension I43 which cooperates with the rounded lower end of a pitman Hi4 slotted to receive a stationary stud I45. The upper end of the pitman I44 is pivoted to an arm I45 fast on a tube I ll'loose on a shaft M8 opposite ends of which are supported by upward extensions of the side frame 30 and a cross frame I49. Pivoted to a downward extension of the arm M9 is a retaining plate I553 having two notches which are urged by a spring I53 into communication with the pointed end of an extension I 5I of an arm I52 loose on the stud MI. V

The aperture H3 (Figs. 3. and 4) for the reset wrench is notched to receive lugs I55 and I55 on said wrench thereby insuring proper insertion of said wrench in the aperture. It will be noted that the arm I40 is spring urged clockwise to normally hold the tongue I39 in the clutch cut I3? to retain the reset shaft I35 in home position when the reset wrench is removed. The righthand end of the reset shaft I35 (Fig. 5) terminates in a pointed 'tenon, which in cooperation with a hole in the end of the reset wrench I M (Fig. 6) guides and supports said wrench during resetting operations.-

Inserting the wrench II 4 in the. aperture H3 causes the beveled edge of the upper tenon I38 as viewed in Fig. 6 to engage and force the tongue I39 (Fig. 3) out of the clutch cut I37 and rock the arm MI! counter clockwise. Counter clockwise movement of the arm I40 rocks an edge I 5?; of the arm I52 into cut-away portion I5! of the wrench H4 (see also Figs. 4 and 6) to prevent removing the wrench until the resetting operation is completed. This counter clockwise movement of the arm I40 by means of the link I32 rocks the segment I42 counter clockwise so that the symbol Zi for a total printing operation is alined with the printing mechanism.

Counter clockwise movement of the arm Mil,

' by means of the extension I43, raises the pitman Counter clockwise I44 to rock the arm I46 and the tube I41 clockwise to cause an arm I58 carried by said tube, in cooperation with a yoke I59 (Fig. 5) to add one on the printing wheels of a step by step counter I60 which indicates the number of times the tctalizer has been reset. The counter I60 does not move up and down with the totalizer frame 94 but is fixedly supported by a bracket on the crossframe I49.

Ribbon shifting mechanism Secured on the tube I41 (Fig. 12) is a pair of arms I6I connected by links I62 to symmetrical arms H53 pivoted to a stationary cross-frame of the machine. The forward ends of the arms i63 extend within openings I64 (Fig. 11) of a ribbon support plate I65 slidably mounted in the platen frame 88. Upwardly extending arms of the plate 365 are notched to support the bi-chrome ribbon I02 in proper relation to the platen block 9| (see also Fig. 14). Normally the upper edge of the ribbon I02 (Figs. 12 and 14) is opposite the printing position. However, inserting the reset key in the machine rocks the tube I41 clockwise against the tension of a spring I66 which by means of the arms I6I, links M52 and arms I63, shifts the ribbon support plate I65 upwardly to move the lower portion of the ribbon I02 into printing position so that totals and sub-totals will be printed in distinguishable colors.

Directing attention to Fig. 2, upward movement of the pitman I44 by means of a stud I61 therein, imparts counter clockwise movement to the lever 62, which movement is transmitted to the lever 65 to move the extension 61 out of the path of the lug 68 on the total printing lever 69. An extension I68 of the arm 16 in cooperation with the lug I54 blocks resetting movement of the reset wrench I|4 until after a total has been printed. This is to inforce a recording of the total before the wheels of the totalizer are turned to zero. Moving the total printing lever 69 (Fig. 2) counter clockwise, in order to print a total, moves the stud 19 beyond the extension 18 of the arm 16, allowing the spring 11 to rotate said arm counter clockwise until the ear 15 engages the nose 14 of the lever 65. The arcuate surface of the extension 18 drops behind the stud 19 and prevents return or clockwise movement of the lever 69 and the projection I68 moves out of the path of the lug I54 so that it is now possible to turn the reset wrench I I4 in a counter clockwise direction to reset the wheels of the totalizer. Reverse or clockwise movement of the reset shaft I35 is prevented by means of a ratchet and pawl (not shown).

As the reset Wrench I I4 (Figs. 2, 5, and 6) is turned counter clockwise, the lugs I54 and I55 move beyond the opening in the aperture and straddle the side wall of the machine frame 30 to further prevent said reset wrench being withdrawn before a complete resetting movement is made. The lug I54 (Figs. 3 and 4) engages the surface I56 of the arm I52 and rocks said arm clockwise on its pivot I4 I, causing the pointed end thereof to move from the lower notch to the upper notch in the plate I50. This position of the arm I52 is indicated by dot and dash lines in Fig. 4. Continued rotation of the reset wrench through one counter clockwise revolution resets the wheels of the totalizer to zero.

In order to prevent duplicate or repeat operations of the reset wrench, mechanism is provided to block movement of said wrench after one revolution thereof. This mechanism remains effective until a regular operation of the machine is performed, thereby enforcing removal of the reset wrench and operation of the machine before the wheels of the totalizer can be again turned to zero. Near the end of the resetting revolution of the reset shaft I35 (Fig. 3) a stud I69 carried by the disk I36 engages a projection I of an arm I11 loose on the stud I45. This rotates the arm I1I clockwise until another projection I13 thereof engages a fixed stud I14. This prevents further movement of the reset wrench H4 and alines the reset shaft I35 in home position so that the reset wrench may now be removed.

Pivoted on the arm I1I is a shutter I having a projection which is urged clockwise into contact with a stud I16 in said arm I'I'I by a spring I11 which fiexibly connects the shutter I15 and the arm I1I. Clockwise movement of the arm I1I as explained above, causes the rounded lower end of the shutter I15 to engage the shank of the reset wrench H4 (Fig. 6) which obstructs further unitary movement of the shutter I15 and the arm HI and said arm I1I continuous to move relatively to the shutter, flexing the spring I 11. When the reset wrench is removed from its aperture the spring I11 rocks the shutter I15 clockwise so that the rounded lower end thereof moves into the aperture for the reset wrench to obstruct or prevent insertion of said reset wrench therein until after a machine operation has been performed.

Subsequent operation of the machine causes the totalizer frame 94 (Figs. 3 and 5) to move downwardly to engage the gears I34 with the differential actuators. This moves the stud I69 downwardly out of the path of the projection I10, allowing the spring I12 to return the arm I1I counter clockwise to normal position, as shown in Fig. 3, which position is determined by a stop stud I18 in the frame cooperating With said arm IN. This return movement of the arm I'II carries the shutter I15 to the position shown in Fig. 3, so that it no longer obstructs the aperture for the reset wrench. Return movement upwardly of the totalizer frame 94 causes the stud I69 to move in front of the projection I 10 of the arm I1I. This further prevents a reverse movement of the reset shaft I when the reset Wrench is inserted in the machine.

Removing the reset wrench I I4 (Figs. 2, 3, and 4) allows a spring I19 to return the arm I40 and the symbol printing segment I42 clockwise to normal position so that the lug Hi) again engages the clutch cut in the hub of the disk I36 and the segment I42 is in position to print the symbol X for a sub-total taking operation. This return movement of the arm I40 allows the pitman I44 and the tube I41 to be returned counter clockwise under the influence of the spring I66 to move the stud I61 (Fig. 2) away from the lever 62, thereby allowing said lever to be returned clockwise to normal position by the spring 13. The spring 13 also returns the lever 65 clockwise to move the arcuate surface of the extension 18 of the arm 16 beyond the stud 1'9 to allow the total printing lever 69 to be returned to home position by the torsion spring 12 in exactly the same manner as described for sub-total printing operations.

Return movement clockwise of the arm I40 caused by removing the reset wrench causes an extension I80 (Figs. 3 and 4) of the arm I52 to engage the periphery of the hub of the disk I36 to shift said arm counter clockwise from the position shown in dot and dash lines in Fig. 4 to its normal position as shown by full lines in Figs. 3 and 4.

It. will be recalled by observing Fig. 1 that after the printing of a sub-total, the sub-total lock 3I may be turned counter clockwise to locked position to condition the machine for operation by removing the projection 39 of the pawl 37 out of the path of the disk II. Also, that after a total is printed, the totalizer reset to zero, and the reset Wrench removed from the machine the total lock I08 may be rotated counter clockwise back to locking position as here shown. This also moves the pawl 31 to ineffective position. As an added precaution means have been provided for retaining the machine locked against operation unless the total printing lever 69 (Fig. 2) is fully returned clockwise to normal position by the spring I2. This mechanism includes a stud I83 (Figs. land 2) secured in the total printing lever 69 which cooperates with the forward end of a lever I84 pivoted at I 85 to the machine frame 30. Moving the lever 69 counter clockwise to print a total causes the stud I83 to rock the lever I34 7 counter clockwise to cause a right angled projection I86 thereof in cooperation with the projection 39 to retain the pawl 3! in efiective position until the total printing lever 69 is returned clockwise fully to home position.

The pawl 31 is also under control of a lock I81, the barrel of which carries a pin I88 which cooperates with an undercut portion of the rearward extension of said pawl 31. Turning the barrel of the lock I81 clockwise to locking position causes the stud I88 to rock the pawl 31 counter clockwise to move the projection 39 thereof into the path of the step 40 of the locking disk M to lock the machine against operation.

Special transaction counter mechanism It will be recalled by referring to Fig. 1 that unlocking the total control lock I08 rocks the shutter II! and the flash I26 to the positions indicated by dot and dash lines to unobstruct the aperture for the turn-to-zero wrench and to uncover the wheels of the special counters. A torsion spring I89 cooperating with the shutter II'I returns said shutter and connected parts to normal position when the total control lock is turned to locking position.

In case it is desirable to have the wheels of the special counters visible in both total and sub-total printing operations, and allow the shutter II] to remain under control of the total lock, it is necessary only to disconnect the flash arm I25 from the shutter II? by removing the stud I24 and provide a similar arm minus the rounded portion that covers the reset wrench aperture with a stud similar to the stud I24 which cooperates with the arm I25 of the flash I29. This arm would be connected by a link similar to the link II6 to the slide which it will be recalled is moved downwardly when either the sub-total lock 3| or the total lock I08 is unlocked. With this arrangement the flash I26 would be moved to ineffective position to allow the special transaction counters to be read in either total or sub-total printing operation.

The mechanism depicted in Fig. 13 serves to stop the reset shaft I2I in zero position after it has been turned one revolution to reset the wheels of the special counters. Secured on the shaft I2I is a disk I90 (see also Fig. the hub of which has therein a clutch cut adapted to receive the tenons of the reset wrench I I4 (Fig. 6).

The disk I90 has in the periphery thereof a V-shaped notch I9I which cooperates with the angular projection I92 of an arm I93 rotatably supported by a stud I94 secured in the special counter frame I22 and urged clockwise by a spring I95 into engagement with a stud I96 in the frame I22. Also loose on the stud I94 is an arm I9'I with a bent-over ear I98 which is maintained in contact with the lower surface a of the projection I92 of the arm I93 by a spring I99 which flexibly connects, said arms I93 and I91. The arm I91 has in its upper end a semicircular notch 200 which cooperates with a stud 20I fast in the disk I90 in a manner now to be described.

With the parts in the positions shown in Fig. 13, the wheels of the special counters are reset by inserting the reset wrench in the clutch cut of the disk I99 and revolving said disk and the shaft I2I in a clockwise direction. This causes the rounded edge of the V-shaped notch I9I to engage the angular projection I92 to rock the arm I93 counter clockwise against the tension of the spring I95. Due to the ear I99 the arm I97 rocks in unison with said arm I93 to move the notch 200 in the path of the stud 2M which by this time has moved beyond said arm I9'I. During continued rotation of the shaft I2I the periphery of the disk I90 in cooperation with the projection I02 maintains the arm I93 and the arm I91 in their counter clockwise positions until the stud 2% moves into the notch 299 'sufliciently to prevent return movement clockwise of the arm I91.

At this instant the circumferential surface of V the disk I99 moves beyond the projection I92 freeing the arm I93 to the action of the spring I95 which returns it clockwise to its normal position. This indicates that the wheels of the special counter have been returned to zero and further movement of the shaft'l2l in a clockwise direction is impossible due to the arm I91. Before another resetting movement of the shaft I2I can be made it is necessary to back up said shaft and the disk I90 in order to disengage the stud 20I from the.

notch 290. The spring I99 then returns the arm I9? to normal position as here shown in full line. Backing movement of the shaft I2I and the disk I 90 is limited by means of the projection I92 which in cooperation with the notch I9I preventsv further reverse movement of the disk I99.

The mechanism for actuating the special transaction counters and the special operation counter is shown in Figs. 7, 8, and 10, and will now be described. The units wheel of each of the transaction counters I29 and the operation counter II9 carries a ratchet 202 the teeth of which are engaged by a spring-urged feed pawl 293 supported by a yoke 200 straddling the Wheels of each of said counters and pivotally supported by the shaft I 2!. The yoke 204 (Fig. 7) has pivoted thereto the forward end of a toggle link 205 the rearward end of which is pivoted at 205 to another toggle link 201, with a stud 298, which extends through a horizontal slot in a support plate 299 fixedly supported by the reset shaft I2I and a rod 2I0. Loosely connected to the pivot point 295 is the lower end of a link 2| I the upper end of which is loose on a rod 2I2 the lefthand end of which is supported by'an arm of a bell crank 2 I3 pivoted at 2M to the plate I23 (see also Fig. 10) and the righthand end is supported by an arm 2 I 5 pivoted to the plate I22 in a similar manner to the bell crank 2I9. The upwardly extending arm of the bell crank2I3 is connected by a link 2I6 to the machine operating mechanism which oscillates said bell crank and the rod 2l2 first clockwise to the position shown in Fig. 7, and then back to normal position as shown in Fig. 8.

Journaled in the plates I22 and I23 (Figs. 7 and 10) is a shaft 2!? having secured thereto a plurality of segments 218 located in uniform radial relation to each other, there being one segment for each of the special counters I29. The peripheries of the segments 2l8 cooperate with the studs 268 to select the different special transaction counters for actuation in a manner presently to be described. Secured on the shaft 2!? is a pinion 2H connected by an intermediate gear 228 to a segment 22! fulcrumed at 222. he segment 22! is differentially positioned during the part of machine operation by means of a settable transaction lever, or in some cases by means of a row of transaction keys. This positioning of the segment 22! is transmittted to the shaft 215? and locates the proper segment 2H3 opposite the stud 2&8. Immediately after the shaft 267 has been thus positioned the bell crank 2i3 receives its initial clockwise movement, which by means of the link 2! i expands the toggle links and 2t? and due to the fact that rearward movement of the stud 208 is blocked, the yoke is rocked clockwise against the tension of a spring 223 to cause the units Wheel of that particular special counter to be advanced one increment of movement.

It is obvious that when rearward movement of th stud 2538 (Figs. '7 and 8) is not blocked by one of the segments 2H8 said stud reciprocates idly in the slot in the plate 209, the spring 223 being strong enough to retain the yoke 264 in home position against a bent-over ear 224 of the plate 289.

As it is necessary for the special operation counter H9 (Fig. 10) to operate every machine operation, this counter is supplied with a disk 225 loose on the shaft 2H which in cooperation with the stud 258 causes one to be added to the special operation counter each machine operaticn. This, together with the fact that the special operation counter IIS has four wheels instead of three, is the only material difference between said counter and the special transaction counters 520.

While the form of mechanism herein shown and described is admirably adapted to fulfill the object primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow.

I claim:

1. In a machine of the class described adapted to print totals directly from the wheels of the totalizer, the combination of means to reset the totalizer; insertable means to operate the resetting means; means to lock the insertable means against removal upon insertion; and means supporting the locking means and adapted to retain the resetting means in home position, said supporting means adapted to be operated by insertion of the insertable means to free the resetting means and to move the locking means to effective position.

2. In a machine of the class described adapted to print sub-totals and totals directly from the wheels of the totalizer, the combination of means to print symbols characteristic of the sub-total and the total-printing operations; means to reset the totalizer; insertable means to operate the resetting means; means to lock the insertable means against removal upon insertion; and an element to retain the resetting means in normal position and connected with said symbol printing means and said locking means, said element adapted to be moved by insertion of the insertable means to free the resetting means, to position the symbol printing means, and to move the locking means to effective position.

3. In a machine of the class described adapted to print sub-totals and totals directly from the wheels of the totalizer, the combination of means to print symbols characteristic of the sub-total and the total printing operations; means to reset the totalizer; insertable means to operate the resetting means; means to lock the insertable means against removal until a complete resetting movement thereof is performed; a step-by step counting device to register the number of times the insertable means is inserted; and an element to retain the resetting means in normal position and connected with said symbol printing means and said locking means, said element adapted to be moved by insertion of the insertable means to free the resetting means, to position the symbol printing means, to move the locking means to effective position, and to cause the counting device to be advanced one unit.

4. In a machine of the class described having a totalizer, the combination of a reset mechanism for the totalizer; an element adapted to be inserted in an aperture in the machine to operate the reset mechanism; means effective when the element is removed to lock the reset mechanism in home position; means to obstruct movement of the reset mechanism after one operation thereof has been performed; means rendered effective by the obstructing means to prevent reinserting the element in the aperture; and resilient means effective upon machine operation to return the obstructing means to normal position, in which position reverse movement of the reset mechanism is blocked, and the preventing means is rendered ineffective.

5. In a machine of the class described adapted sertable means to operate the resetting means;

means normally locking the impression means against operation; means to prevent resetting movement of the insertable means until the impression means has received its initial movement to print a total; and means whereby insertion of the insertable means moves the impression locking means to ineffective position to permit initial movement thereof, which in turn renders the preventing means ineffective.

6. In a machine of the class described adapted to print totals directly from the wheels of the totalizer, the combination of means to impress record material against the totalizer wheels; means to operate the impression means; means to reset the totalizer Wheels to zero; insertable means to operate the resetting means; means normally locking the impression operating means against printing movement; means to prevent resetting movement of the insertable means until the impression operating means has received initial movement to print a total; a member cooperating with the locking means for the impression operating means; and means operated by insertion of the insertable means to actuate the member to move the locking means to in effective position.

, '7. In a machine of the class described adapted to print totals directly from the wheels of the totalizer, the combination of means to impress record material against the totalizer Wheels; means to operate the impression means; means to reset the totalizer to zero; insertable means to operate the resetting means; a member with two positions the first of which looks the insertable means against resetting movement until an impression is made, and the second of which frees the insertable means and locks the impression operating means in moved position; resilient means to move the member to its second position upon initial movement of the impression operating means; means on the impression operating means to retain the member in first position; means to block movement of the impression operating means; and means operated by insertion of the insertable means to render the blocking means ineffective.

8. In a machine of the class described adapted to print totals directly from the wheels of the totalizer, the combination of means to impress record material against the totalizer wheels; means to operate the impression means; means to reset the totalizer wheels; insertable means to operate the resetting means; and an interlocking device intermediate the impression operating means and the insertable means to render the latter inoperative until the impression operating means receives printing movement, which movement causes the interlocking device to free the insertable means and lock the impression operating means in moved position.

9. In a machine of the class described adapted to print totals directly from the wheels of the totalizers, the combination of means to impress record material against the totalizer wheels; means to operate the impression means; means to reset the totalizer wheels; insertable means to operate the resetting means; an element to lock the impression operating means against printing movement; a member to lock the insertable means inoperative until the impression operating means receives printing movement;

and means operated by insertion of the insertable 'means to move the element to ineffective position.

10. In a machine of the class described adapted to print totals directly from the wheels of the totalizer, the combination of means to impress record material against the totalizer wheels; means to operate the impression means; means to reset the totalizer wheels; insertable means to operatethe resetting means; an element normally locking the impression operating means against printing movement; a spring-urged member held in normal position by the impression operating means to block resetting movement of the insertable means, said member upon printing movement of the impression operating means adapted to free the insertable means and block return movement of the impression operating means; a resilient element associated with the member and normally locking the impression operating means against printing movement; and means operated by insertion of the insertable means to move the element to ineffective position, return movement of said element upon removal of the insertable means adapted to restore the member to normal position.

11. In a machine of the class described adapted to print totals directly from the wheels of the totalizer, the combination of insertable means to reset the totalizer; means to impress record material against the wheels of the totalizer; means to lock the impression means inoperative; a shiftable inking device for the impression means; and means actuated by insertion of the insertable means to shift the inking device and simultaneously render the locking means ineffective.

12. In a machine of the class described adapted to print totals directly from the totalizer wheels, the combination of means to impress record material against the totalizer wheels; means to operate the impression means; means normally efiective to lock the impression operating means against printing movement; insertable means to reset the totalizer; a shiitable device supporting a bi-chrome inking ribbon for the impression means; a member actuated by insertion of the insertable means; and means intermediate the member and the shiftable device to shift said device and simultaneously render the locking means ineliective.

13. In a machine of the class described adapted to print totals directly from the totalizer wheels, the combination of means to impress record material against the totalizer Wheels; means to operate the impression means; means normally effective to lock the impression operating means against printing movement; insertable means to reset the totalizer to zero; a shiftable device supporting a bi-chrome inking ribbon for the impression means; a member actuated by insertion of the insertable means; an element operated by the member; and means whereby the element shifts the device and simultaneously renders the locking means for the impression operating means ineffective.

i i. In a machine of the class described adapted to print totals directly from the totalizer wheels, the combination of means to impress record material against the totalizer wheels; a closure giving access to the impression means; a look on the closure; insertable means to reset the totalizer wheels; an aperture to receive the insertable means; machine operating means; means to lock the machine operating means; means normally obstructing the aperture, said obstructing means also adapted to control the closure locking means and the locking means for the machine operating means; and a main lock to control the obstructing means.

15. In a machine of the class described adapted to print totals directly from the totalizer Wheels, the combination of means to impress record material against the totalizer Wheels; a closure giving access to the impression means; a lock on the closure; a plurality of counting devices; insertable means to reset the totalizer wheels and. the counting devices; apertures opposite the totalizer wheels and the counting devices adapted to receive the insertable means; a flash to control to control the obstructing means.

16. In a machine of the class described adapted to print totals directly from totalizer Wheels, the

combination of means to impress record material against the totalizer wheels, means to actuate the impression means, a record material controlled latch for latching said actuating means whenever no record material is in printing position, means to reset the totalizer wheels, insertable means to operate the resetting means, means normally locking said actuating means against operation, means to prevent resetting movement of the insertable means until the actuating means has received an initial movement, and means controlled by the insertable means to move the actuator locking means to ineffective position, said latch and actuator locking means compelling the presence of record material at the printing point and the insertion of the insertable means in order that the actuating means may be unlocked so that it may be operated to actuate the impression means and unlock the reset preventing means.

17. In a machine of the class described having means to print totals directly from totalizer wheels, the combination of means to actuate the total printing means, a closure giving access to the printer actuating means, a lock for the closure, a shaft operable to reset the totalizer wheels, means to engage the end of the shaft to operate it whereby the wheels may be reset, machine operating means, locking means for the machine operating means, means normally shielding the end of the reset shaft to prevent the shaft from being engageable by its operating means, said shielding means also controlling the closure locking means and the locking means for the machine operating means, and a main lock to control the effectiveness of the shielding means.

18. In a machine of the class described having means to print totals from totalizer wheels, the combination of means to actuate the total printing means, a closure giving access to the printer actuating means, a lock for the closure, plurality of counting devices, a reset shaft for the totalizer, a reset shaft for the counters, means selectively engageable with the ends of the shafts to actuate them whereby the counting devices or totalizer wheels controlled thereby may be reset, a flash to control the visibility of the counting devices, a first shield for covering the end of reset shaft for the counting devices, said shield being connected to operate the flash, machine operating means, locking means for the machine operating means, a second shield for covering the end of the totalizer wheel reset shaft, said first and second shields being adapted to prevent engagement of the shafts and their actuating means, connections from the second shield to control the closure locking means, the locking means for the machine operating means and the first shield, and a main lock for controlling the effectiveness of the second shield.

RICHARD FELLENBERG.