US1120318A - Calculating-machine. - Google Patents

Description

O. MALGHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13,1911. RENEWED MAY 4, 1914.

1,120,318. Patented Dec. 8, 1914.

6 SHEETS-SHEET 1.

O. MALCHER. CALCULATING, MACHINE. APPLICATION FILED JULY 12, 1911. RENEWED MAY 4, 1914.

1,120,318. Patented Dec. 8,1914.

6 SHEETS-SHEET 2.

0. MALOHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13, 1911. RENEWED MAY 4, 1914. 1 1 20, 3 1 8.

Patented Dec. 8,1914.

6 SHBETSSHEET 3.

O. MALUHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13, 1911. RENEWED MAY 4, 1914.

Patented Dec. 8, 1914.

6 SHEETS-SHEET 4.

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O. MALUHER.

CALCULATING MACHINE.

APPLICATION FILED JULY 13, 19m. RENEWED MAY 4, 1914.

Patented Dec. 8, 1914.

6 SHEETSSHEET 5.

0. MALUHER. CALCULATING MACHINE.

APPLICATION-FILED JULY 13, 1911. RENEWED MAY 4, 1914.

Patented Dec. 8, 1914.

6 SHEETSSHBET 6.

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OTTO MIALCHER, OF GHIGAGO, ILLINOIS, ASSIGNOR TO CARLIN CALCULATOR 00., OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CALCULATING-MACHINE.

ancers.

Specification. of Letters Patent.

Patented Dec. 8, 1914.

Application filed July 13, 1911, Serial K0. 638,277. Renewed May 4, 1914. Serial No. 836,358.

To all whom it may concern:

Be it known that I, O'r'ro MALOHER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, .haveinvented certain new and useful Improvements in Calculating-Machines, of which the following is a specification.

This invention relates in general to calculating machines of the type in which there is employed a register embodying a plurality of rotatable number bearing members or wheels upon which the amounts are registered, the members being controlled by individual selecting mechanisms whereby they may be sent for variable movement by a driving mechanism which is under the control of the operator through the agency of a suitable controller bar or key; the selecting mechanism of each member being itself con-trolled by a plurality of keys.

More particularly the invention relates to means in a machine of this class whereby the register may be quickly cleared of any amount that may be registered thereon and the number bearing members restored to their zero position, that is, with the zero of each of the number bearing members in the reading position.

The invention has for one of its objects to provide an improved machine of this class having means adapted to be set, at will, for clearing the register and means for automatically rendering the clearing mechanism inactive when the register has been thus cleared;

A further, object is to provide an improved machine of this class having means for arresting the movement ofthenumber bearing members under the influence of the clearing mechanism whereby overthrow of the number bearing members will be prevented.

A further object is to provide an improved machine of this class which will be simple and durable in construction, and effective and efiicient in operation.

To the attainmentof these ends and the accomplishment of other new and useful olejects as will appear, the invention consists in the features of novelty in substantially the construction, combination and arrange ment of the, several parts'hereinafter "m'o fully described and claimed and shown mthe accompanying drawings exemplifying the invention, and in which Figure 1 is a vertical longitudinal sectional View of an improved machine of this class constructed in accordance with the principles of this invention. Fig. 2 is a sectional view on line 2-2, Fig. 1. Fig. 3 is a sectional view on line 3-3, Fig. 1. Fig. 4: is an irregular sectional view taken on lines 14:, Figs. 2 and 3, with parts omitted. Fig. 5 is a sectional view taken on line 5-5, Fig. 1. Fig. 6 is a sectional view on line 6-6, Fig. 5. Fig. 7 is a detail sectional view on line 7-7, Fig. 6. Fig. 8 is a sectional view on line 8-8, Fig. 1. Fig. 9 is an enlarged detailplan view of a portion of the carrying mechanism. Fig. 10 is a sectional view taken on lines 10-10, F'rgs2 and 3. Fig. 11 is a sectional view on line 1111, Fig. 10. Fig. 12 is a sectional view .on line 12-12, Fig. 10. Fig. 13 is a perspective view of a detail Referring more particularly to the drawings and in the present exemplificatiorf of the invention, the numeral 15 designates generally a supportingba-se upon whichthe structure is mounted and rising from this base are a plurality of uprights'"16, 1'1, 18, (see particularly Fig. 1), which uprights are spaced from each other. These uprights may be of any desired height and may be connected by tie rods or bolts 19', 20, as shown. The upright 16 is preferably located some distance from the front wall of the machine and journaled in these uprights 16, 17, and 18 are a series of shafts 21, preferably nine in number, and are arranged parallelwith each other to extend longitudinally of the machine. The forward-extremities of the shafts 21 project slightl beyond the upright 16 and secured to eac of these shafts is a bevel gear 22 with each of which a companion gear 23 on a shaft 2d meshes. This shaft 24 extends transversely with respect to the shafts 21 and is journalcd in suitable bearings 25 (see particularly Figs. 1 and'2) so that when the-shaft 24 is rotated the shafts 22' will be correspondingly rotated. Secured to each of the shafts21 is a mutilated drum 26 preferably comprised of a series of mutilated gears,-

nine in number, arranged in close proximity to each other and these mutilated drums on lation with respect to eachother and the gears of each series are provided with different num-bers of teethranging gradually from 1 to 9. J ournaled in the uprights 16,. l7 and 18 and above each of the shafts 21 is another shaft 27 upon each of which is mounted a traveling. gear 28. These gears 26, 28 constitute portions of selecting mechanisms for controlling the degree of rotation of the number bearing members of the regis- 1 32 is mounted in suitable bearings 33 and an elastic member 34 connected by one end to i an arm 35 on the slide 32 and by its other end to a fixed support 36 is provided which tends norma'lly to move the slide 32 in a direction to move the traveling gear 28 into a position to mesh with the gear of the series 26 having but one tooth. The bearings 33 depend from a fixed portion 37 0f the mechanism and the slide 32 is held against adjustmentunder thev influence of the elastic member 34 by meansof an arm 38 on a rock shaft 39. .This rock shaft 39 is journaled in suitable bearings and is controlled by a series of keys 40 so that when any one of the keys of the series is actuated, the shaft 39 will be rocked against the tension of an.

elastic member 40 to move the arm 38 out of the path of movement of the slide 32 and thereby release the slide to permit the latter to be moved under the influence of the elas-- tic member 34 to adjust the-traveling gear 28 with respect to the gear 26. The degree of movement of the slide 32 is controlled by the respective keys 40. The specific construction andoper-ation, however, of this portion of the mechanism forms nofpart of the present invention but constitutes the subject matter of another application. Sufficeit to say'that the slide 30 and the stems of the keys 40 are so constructed that when [one of the keys- 40 is actuated, the ear 28- will be moved a distance correspon mg tothe key actuated and thereby position the gear 28 to mesh with the gear of the series '26 corresponding to that position. In this position it will be manifest that a degree of rotation may be imparted to the shaft 27 corresponding to the number of teeth on the particular gear 26 with which gear 28 meshes, and inasmuch as the number bear-' ing members 41 of the register are secured to the shafts 27 for rotation therewith, .it will be apparent that the rotation of shafts 27 will impart a col-resending degree of matically releasethe shafts 21, 24, with re.-

spect to the power shaft 42 after the former" shafts have made one complete rotation so that they will stop after this rotation, there is provided on the shaft 42 a star or toothed wheel 43 (shown more clearly in Figs. 3 and 4) which is secured to the shaft 42 for rotation therewith. Moimted loosely upon theshaft 42 is a disk 44 and pivotally supported by this disk is a dog or pawl 45 which cooperates with the star or toothed wheel 43 and an elastic member 46 tends normally to move the dog or pawl 45 in a direction to engage the star or toothed wheel 43 and thereby lock the disk 44 and a gear 46 which is carried by the disk 44 for rotation with the shaft 42. The gear 46 meshes with the gear 47 which is secured to and for rotation with a shaft 48. This shaft 48 is arranged parallel with the shaft 42 and'is journaled in the uprights 17 and 16. Secured to the shaft 48 and for rotation therewith is a bevel gear '49 (see particularly Fig. 2) and this bevel gear 49 meshes with a companion gear 50 on the shaft-24. Thus it will'be manifest that when the gear 46 is locked to the shaft 42 for rotation therewith, the gear 47 with which it meshes will also be rotated and as the gear 47 is secured to the shaft 48 for rotation therewith this shaft :will be rotated as well as the shaft 24, The gear 46 is normally unlocked with respect to the shaft 42 and in order to accom' lish this, there is provided another dog 51 see Figs. 3 and 4) which is secured to a 'rock shaft 52 for rotation therewith and this shaft 52 is journaled in suitable bearings above and in proximity to the shaft 42 so that when the dog 50 is rockedin a manner to be set forth the shaft 52 will also. be rocked. This dog 51 is adapted to be moved by means of an elastic member 53 in a direction to cause its shouldered extremity 54 to be normally moved into the path of movement of a shoulder 55 on' the dog 45 so as to rock the latter about its point of pivotal support on'the disk 44 against the tension of the elastic member 46 to unlock the gear 46 from the shaft 42. The dog 51is adapted to be rocked to disengagethe shoulder 55 of the dog 45 to release the latter by means of a controller bar or key, the stem 56 of which is shown in Fig. 4, and when the dog or toothed wheel 43. The stem 56 of the controller bar orkey is connected with a member designated generally by the reference numeral 57 which is loosely mounted which latter,

upon the shaft 52. A member 58 is pivotally supported by the member 57 and is provided with a portion adapted to project over a shoulder 59 on the dog 51 and an elastic member 60 is provided which is connected with the member 58 and tends normally to move a portion thereof over the shoulder 59 of the dog 51 when the key stem 56 ismlevated so that. when the key stem is depressed the dog 51 will be rocked through'ithe medium of the member 57 and the member 58. The key stem and the members 57, 58', may be returned in any suitable manner, preferably by means of an elastic member 61. It will thus be manifest that each time the keystem 56 is actuated, assuming the parts to be in the position shown in Fig. 4, the dog, 51 will beactuated and the dog released. When the key stem 56 is actuated a certain distance, the portion of the .member 58 which projects over the shoulder 59 will pass 06 of the shoulder and the'dog 51 will be returned by the clas tic member 61 so that its extremity 54 will be in a position to engage the shoulder on the dog 45 to automatically unlock the gear 46lfromthe shaft 42.

After the completion of the calculation, and before another calculation can be made, it is necessary to return the slides 32 and the traveling gears 28 to release the actuated key and restore the parts to their normal positions. This is accomplished by means of a rocking member 62 (see Figs. 1 and 2) which is supported by arms 63 connected toa-Jock shaft 64 journaled in suitable supports and is so positioned that when the I shaft 64 is rocked in one direction the member 62 will engage the depending portion or arm 35 on the slides 32 to move the latter against the tens on of the elastic member 34,

as has been before stated,.is provided for shifting the member 32 longitudinally to move the gear 28 into a position to mesh with the gears 26. The shaft 64 is rocked at-the completion of the calculation by means of a suitable connection between the shaft 48 and the shaft 56 which latter is arranged at right angles to the shaft 64. In. order to thus rock the shaft 64, the shaft 56 is provided with an arm 65 (see Fig. 2) which cohperates with an arm 66 on the shaft 64. Any suitable connection is provided between the' shafts 48 and 56 so that the latter will be operated intermittently. When the shaft 641s rocked to return the slides 32 and.

the gears 28,,tension is created upon an elastic member 67 (see Fig. 1) so that the member 62 may be returned to its normal position or the position shown in Fig. 1 after the gears 28 and the slides 32 have been moved to their normal positions. In order to lock the shafts 27 against overthrow each is provided with an suitable mechanish such as a star or toot ed wheel 68 (see Figs. 1 and 3) and a dog or pawl 69 which is pivotally mounted upon a suitable fixed support and adapted to co6perate with the wheel 68 when a cam 7 0, secured on shaft 21, moves the dog into the space between two of the teeth of the wheel 68. All of the above described parts, however, form no part of the present invention but constitute the subject matter of another pending ap plication. Suflice it to say that by the actuation of one of the keys 40v the traveling gear 28 will be correspondingly set with relation to the gears 26 and after the controller bar or key is actuated to depress the is provided which is adapted to be rendered Inactive and active respectively when the calculation is being performed, ,,a nd when the clearing operation is being performed. Any suitable means may be provided for this purpose but a simple and efiicient means embodies a gear 71 which is secured for ro tation with each of the shafts 21. As the clearing mechanism for each of the number bearin members 41 is the same, tion 0t one will suliice. The gear 71 is secured to the shaft 21 preferably in close proximity to the number bearing member 41 and; is provided preferably with nine teeth 72. Slidably mounted upon the shaft 27 is a sleeve 73 (see particularly Figs. 1, 6 and 7) to which sleeve is connected a gear 74. This gear is provided with nine teeth so arranged that a space 7 5 of some size will be formed between two of the teeth.

This space 75 is so arranged with respect to the numbers 76 on the number bearing members 41-that when the zero of the number bearing member is in position to be read through the sight glass 77 in the top 7 8 of the casing, the space 75 will be disposed in proximity to the teeth 72 0f the gear 71. This construction will permit the number bearing member 41 to remain in the zero position when the space 75 is adjacent the the descrip- 3 periphery of the gear 71. This sleeve 73 is into a position to mesh with the gear 71 and into a position where it will not mesh with the gear 71. It will therefore be manifest that if the gear 74 is shifted on the shaft 27 into a position that itwill mesh with the gear 71, the shaft 27 will be rotated when the shaft 21 is rotated inasmuch as the sleeve 73 is keyed to the shaft 27. Obviously when the gear 74 is moved into a position to mesh with the gear 71, the respective gears 28 must be in positions that they will not mesh with the cooperating gears 26.

Inasmuch asthe direction of rotation of the number bearing members 41 is constant, both during thecalculation and of the clearing operations, and inasmuch as the shaft 27- is rotated-with some speed, it will be manifest that there might be a, tendenc to overthrow of the number. bearing mem ers 41 and in this event the number bearing members might not stop in the proper po-, sition when clearing that is, with the zero in the reading position. In order to obviate this difficulty, there is provided in the present exemplification ofthis invention a pin or projection 79 (see Figs. 1 and 3) which projects from the .hub 80 of the number bearing member 41. A member 81 is mounted for sliding movement, "preferably upon spaced supports 83' (see particularly Fig. 3) which may be arranged adjacent the extreme'number' bearing members of the series. These supports 83 are secured --to any fixed portion of the mechanism preferably the support'18, and elastic members '84, such as coil springs or the. like, surround these supports and are disposedbetween the upright 18 and'the member 81. Projecting laterally beyond the member 81 are a series of projections 85,0119 for each of the number bearing members 41 and are adapted to respectivelycooperate with the pins or projections 79. The pins or projections 85 andthe supports 83 are so constructed that the normal tendency of the elastic members 84 is to move the pins or 'rojections 85 away from the pins or proections 79 and out of the path of the rotary movement of the latter.- The gears 74 are preferably arranged in staggered relation with respect to each other so that some of the gears 74 will be disposed in close proximity to the member 81 and inasmuch, as all of the gears 74 will be shifted on the shafts -27 eachtime the clearing mechanism is set, itwill be manifest that the member 81 will also be shifted so as .to-move .the pins orprojections 85 into the ath of mbvement of the pins or projections 79 of the number bearing members 41. 'In order that the mechanism.ma-y be arranged compactly as possible the member 81 may be provided shafts 27 project. The member'81 will have moved into a position to cause the pins 85 to project into the path of movement of the pins or projections 79 just as the gears 74 move into positions to mesh with the gears 71. that is necessary is to again actuate the controller bar or key to depress the stem 56 (see Fig. 4) to lock the gear 46 to the shaft 42. This will impart rotation to the shaft 24 in the manner already described and the shafts 21 will be. correspondingly rotated.- Under these conditions the rotary motion of the shaft 21 will then be imparted to the shafts 27 through the medium of the meshing gears 71, 74. members have reached their zero positions the pins 71 thereon will enga e the respective pins or projections 85 on t e member 81 operating positions is accomplished in the present exemplification of the invention by {manually actuated mechanism which will now 'be described. I r

Extending transversely of the shafts 21., preferably below the latter and adjacent the gears 71, is a rock shaft 86 (see Figs. 1, 3, 5, 10) journaled in suitable bearings and pivotally supported by this shaft are a series When the parts are thus set, all

When the number bearing of yoke-shaped members designated generally liythe reference numeral 87. One of these yoke-shaped members 87 is provided for each of-the number bearing members 41 with the exception of the unit number bearing members, and comprises an arm ,88

having a laterally projecting pin or 111g 89, .which latter projects into a circumferential recess 90 in the sleeve 73. An elastic member 91 is connected with each of the yokes 87 and also to a suitable fixed support. These elastic members 91 tend normally to move the gear 74 out of mesh with thegear 71 so that in order to move the gear 74 into a posithat it will mesh with the gear 71, it is necessary to rock the yoke-shaped members 87 against the "tension of these elastic members This isiacco'mplished by rocking the shaft 86, which latter is provided with a series of laterally projectingpins 92 (see Figs. 1 and 10), normally spaced a slight distance from the body portion of the yoke- I shaped members, but in a position that when the shaft 86 is rocked in'one direction, the pins will engage the yoke-shaped member to rock the latter and thereby shift the gear 74 through the mediumof the arm 88. The

' 74 out of mesh with the gears 71.

.99 is adapted to be automatically rocked by shaft 86 may be rocked by means of an arm or lever designated generally by the reference numeral 93 (see particularly Fig. 10), arranged in any convenient position for the operator, preferably adjacent the front of the machine. This lever 93 is pivotally mounted intermediate its ends as at 94 and is connected by means of a link 95 with an arm 96 on the shaft 86. The link 95 is provided with a pin and slot connection 97, 98, with the arm 96 for a purpose to be hereinafter set forth. Thus it will be manifest that when the lever 93 is moved from the position shown in Fig. 10, forwardly, to rock the lever about its pivot 94, the link 95 will beshifted and this in turn will rock the shaft 86 through the medium of the arm 96 and the gear 74: will be positioned so as to mesh with the gear 71. In order to lock the parts in this adjusted position, any suitable mechanism may be provided, such for instance as a catch designated generally by the reference numeral 99 (see Fig. 10) which is pivoted intermediate its ends as at 100. One extremity 101 of this catch is provided with a shouldered portion adapted to cooperate with a shouldered portion 102 on the lever 93. An elastic member 103 is provided and tends normally to move the shouldered extremity 101 of the catch 99 in.a direction to engage over the shoulder 102 when the lever is rocked and yields to permit the shoulder 102 to assume a position to be engaged by the shouldered portion 101. hen the shaft 86 is thus rocked to position the gears 74 to mesh with the gears 71, tension will be created upon the elastic members 91 so that when the catch 99 is rocked to release the lever 93, the tension thus created upon the elastic members91 will rock the shaft 86 in the opposite direction to move the gears The catch means of a cam 101 (see'Figs. 2 the shaft 24 which is adapted to extremity 105 of the catch at the of the revolution of the shaft 2 1.

The gear 74 of the .units number bearing members (see Fig. 5) is adapted to be shifted by an arm 105 similar to the arms88 of the yoke-shaped members 87, with the exception that the arm 105 is connected to the shaft 86 for movement therewith. This arm 105 is also provided with a laterally projecting portion 106 (see also Fig. 6) which projects into the circumferential recess 90 of the sleeve 73 so that when the shaft 86 is rocked in the manner already described, the gear 74 of the units number bearing member will be correspondingly shifted.

Mechanism whereby the carrying from one number bearing member to the next adj acent number bearing member ofv a higher denomination may be effected will now be and 10) on engage the completion described. Secured to each of the shafts-21 is a one-toothed gear 107 (see Figsgl and 8) which is preferably arranged in proximity with the respective gears 71 and a gear 108 is connected with each of the sleeves 73 and is adapted to be moved with the sleeve 73 when the latter is shifted. The gears 74, 108 are connected to the respective sleeves 73 in such a manner that they will be spaced from each other a distance less than the distance between the respective gears 71, 107, so that when the sleeve 73 is shifted in one direction or the other so as to cause one of the gears 74-, 108, to be positioned so as to mesh with the respective gears 71, 107, the other of the gears 74, 108 will assume a position out of mesh with its respective gear on the shaft 21. In order to accomplish this the gears 71, .107 are so arranged that the SlBGVG 73 must be shifted in one direction, for instance, to the right as shown in Fig. 1 when the carrying operation is to take place, and to the left when the clearing operation is to take place. Inasmuch as the carrying operation is automatic, it is necessary that the sleeves 73 should be shifted on the respective shafts 27 independently with respect to each other and also independently with respect to the motion of the shaft 86. For this reasonthe yokeshaped members 87 are provided, and are mounted loosely upon the shaft 86.

As has already been stated, the normal tendency of, the elastic members 87 is to move the gear 74: out of mesh with respect to the gears 71 and as this movement of the gear 7-1 will shift the sleeve 73 to position the gear 108 so that it will mesh with the one-toothed gear 107 it will be manifest that mechanism must be provided for normally holding the gear 108 in a position that it will not mesh with the gear 107. At the same time, however, mechanism should be provided for releasing this gear 108 at the proper time when the carrying operation is tobe effected. Suitable mechanism for accomplishing this comprises an arm 109 (see particularly Figs. 8 and 9) which is pivotally mounted upon any suitable fixed sup port 110, preferably the upright 17 and this arm 109 projects into the path of movement of the extremity 111 of the sleeve 73 and an elastic'member 112 tends normally to move the arm 109 about its ivot 110 in a direction to engage the end of the sleeve 73 to hold thegear,108 in a position where it Will not mesh with the gear 107 and to maintain the elastic member 87 under tension. A stop 109 is provided for each of-these arms 109 for limiting the movement of the latter under the influence of the elastic member 112. It'will therefore be manifest that when the arm 109 is rocked to release the sleeve 73, the elastic member 91 will swing the yokeshaped member 87 about its pivot to move the gear 108 into a position to mesh with the gear 107. The arm 109 is rocked by means of a tooth 113 rotatable with the shaft 27 and which tooth engages an extension 114 of the arm. The tooth 113 is'so arranged that when the number bearing member crosses the zero point, it will engage the extension 114 and rock the arm 109 against the tension of the elastic member 112. After the tooth 113 passes out of engagement with the extension 114 on thearm 109 the arm will be moved by the elastic member so that it will engage and rest upon the periphery of a portion of the sleeve 73.

After the completion of the calculation it is necessary to shift the gears 108 back to their original positions, that is, so that they will not be in mesh with the gears 107. This operation is effected by rocking the shaft 86 and in order to automatically rock the shaft, one of the shafts 21 is provided with a cam or tooth 115 (see Figs. 5 and 6) which is adapted to engagea lateral projecti'on 116 on the shaft 86 to rock the latter against the tension of an elastic member 117. -When the cam or projection 115 passes out of engagement with the projection 116 on a shaft 86, the tension of the elastic member 117 will restore the shaft 86 to its original position. When the shaft 86 is thus rocked, the pins or projections 92 thereon will move into engagement with the body portions of the yoke-shaped members 87 to rock the latter and thereby shift the sleeves 73 into such positions that the elastic members 112 will move the arms 109 behind the ends 111 of the sleeves 73 to hold the latter in position. g

In order to lock the number-bearing members 41 against accidental movement by the vibration of the machine or otherwise, when the cams 69 are moved out of locking posi tion with respect to the star or toothed wheels-68 on the shafts 27, dogs 118 (see Figsl and 3) are provided which coiiperate with star or toothed wheels 119 on the shafts 27. As has already been stated, the gears 28 and the slides 32 are returned to their normal positions, that is, so that the gears 28 will not mesh with the gears 26, by the member 62, that is, by rocking the shaft 64. It is advisable that these gears 28 be shifted to their normal or inactive positions before the number bearing members or the register is cleared. In order therefore to insure this position of the gears 28, the, lever 93 is provided with a portion 120 (see Figs. 10 and 12) upon which is mounted an anti-friction roller 121. This roller 121 is so-positioned that when the lever-93 is rockedabout its pivot 94, the roller will engage one of the arms 63 and move the latter to'rock the shaft .64 in a direction to cause the member. 62 to engage the projecting portions 35 of the slides 32, to shift the latter and the respective gears 28 into their inoperating positions so that when the shafts 21-are set into motion after the clearing mechanism has been set, no damage will be caused to'the mechanism. If desired, a guide 122 may be provided for the end of the lever 93. It has also been set forth that in order to connect the power shaft 42 with the shaft 44 and thereby impart rotation to the shaft 24 and the shafts 21, it is necessary to trip the dog 51 (see Fig. 4). This tripping of the dog 51 rocks the shaft 52 which rocking movement is effected through the medium of the members 57 and 58, in one direction. The shaft is rocked in the opposite direction by means of the elastic member 53.

In clearing the number bearing members it is first necessary to set the-gears 74 by shifting the lever 93 (see Fig. 10) and in order that the parts may operate, these gears must be actually set with respect to the gears 71. It will be manifest that unless these gears are thus-properly set, before the actuation of the controller bar or key to trip the dog 51, the actuation of the latter might .cause injury to the machine. In order therefore to positively insure the correct setting of the gear 74and ,to prevent the actuation of the controller bar or key and the tripping of the dog-'51 before the gears 74 are set, suitable locking mechanism is provided which will now be described.

Extending transversely of the machine and at any convenient point, preferably adjacent the lever 93, (see Figs. 2, 4, 10, 11, 12 and 13) is a bar or rod123 which is supported in any desired or suitable manner preferably by means of fastening devices 124 passing through slots 125 in the bar or. rod 123. One extremity of this bar or rod 123 is bent or deflected downwardly as at 126 to extend into the}. path of movement of a pin or projection 127 on the shaft 52. The other extremity 128 of the bar provided with slots 130 through which fas-.

toning devices 131 pass. This slide 129 is provided with an arm 132 which is loosely connected as at .133 with the lever 93. The slide 129 is arranged transversely with respect to the bar or rod 123 and with one edge adjacent the upwardly deflected. portion 128 of the bar or rod 123. This edge of the slide 129 is provided with recesses 13%, 135, adapted to receive the upwardly defle'oted extremity 128 of the bar or rod 123. when the recesses are properly positioned with respect to such extremity. It will thus be manifest that when the lever 93 is shifted about its point of pivotal support 94, the slide 129 will be correspondingly shifted rod 123 when the lever 93 is in one or the other of its proper positions, that is, to move the gear 74 either into or out of position to mesh with the gear 71. These recesses 134, 135, are spaced from each other and it will thus be manifest that unless the slide 129 is properly shifted, the recesses 1 134, 135 will not be in position to receive the extremity 128 of the bar or rod 123. If'the recesses are properly positioned with respect to the extremity 128, it will be manifest that the shaft 52, (see Fig. 4), may be rocked in the manner already described and the dog 51 will then be shifted to release the dog 45. If the recesses 134, 135 are not in a proper position to receive the extremity 128 of the bar or rod 123, the shaft 52 cannot be rocked inasmuch as the pin orprojection 127 will engage the depending portion 126 of the bar or rod 123 and any movement of the latter will cause the extremity 128 to engage the edge of the slide 129 and the shaft 52 will be held against movement. An elastic member 136 is provided andis connected to the bar or rod 123 and to a suitable fixed support and tends normally to move the slide 123 in a direction to move the deflected extremity 128 out of the recesses 134, 135. It will therefore be manifest that unless the gears 74 are properly positioned with respect to the gears 71, when it is desired to clear the machine, the controller bar or key cannot be actuated as the dog 51 will be locked against actuation.

The entire mechanism, with the exception of the extremity of the lever 93, the keys 40,

the stem 56 of the controller bar or key and the extremity of the power shaft 42, may be inclosed within the casing 137, as will be understood.

From the above description it is thought that the operation of this machine will be clearly apparent but briefly stated, it is as follows: Assuming the parts to be in the position shown in Fig. .1 and with the number bearing members 41 in a zero position, the operator by the actuation of one ofthe keys 40 of each series sets the selecting mechanism for controlling the degree of rotation of the respective number bearing members 41. by rocking the shaft 39 to re lease the sliding members 32. Thus released,

the elastic members 34 will adjust the slid-' ing members 32 and the gears 28 to move theminto a position with respect to the gears 26, corresponding to the particular key actuated. Thus set. the controller bar or key is actuated and this will shift the stem 56 (see Fig. 4) to rock the dog 51 and the shaft This willrelease the dog 45 and the gear 46 will be locked to the power shaft 42. The rotary motion of the gear 46 will be imparted to the shaft 48 through the meshing gear 47 and motion of the shaft 48 will be imparted to the shaft 24 through the medium of the meshing gears 49, 50, (see Fig. 2). When the shaft 24 is rotated, the shaft 21 will be rotated and the rotary motion of these shafts 21 will be imparted to the shaft 27 through the medium of the gears 26, 28. When the shaft 21 commences to rotate, the cams will permit the dogs 69 to move out of locking position with the toothed wheel 68. The shafts 27 will rotate the number bearing members 41 and as the respective number bearing members cross the zero point, the teeth 113 (see Fig. 8) will engage the extensions 114 on the respective arms 109 to shift the latter against the tension of the springs 112, thereby releasing the sleeves 73. Thus released, the elastic members 91 will shift the yokeshaped members 87 to move the sleeves 73 in a direction to position the gears 108 so that they will mesh with the respective gears 107. After the completion of the calculation, the cam 115 on one of the shafts 21 (see Figs. 5 and- 6) will engage the projection 116 on the shaft 86 to rock the latter and thereby cause the pins or projections 92 thereon to engage the yoke-shaped members 87 to move the latter to shift the sleeve 73 and thereby move the gears 108 into a position that they will not mesh with the gears 107. When the sleeves 73 are thus shifted, the elastic members 112 (see Fig. 8) will move the arms 109 behind the sleeves 73 and lock the sleeves and the gears 108 in this position and will also maintain the springs 91 undertension. Just at the completion of the calculation, the shaft 64 will be rocked and the member 62 will engage the depending portion 35 on the slides 32 to shift the latter and the gears 28 on the shafts 27 into their normal positions or out of mesh with the gears 26. This operation may be repeated as many times as desired. When it is desired to clear the machine, that is, to remove the amount registered on the number bearing members 41, the lever 93 is shifted to rock the shaft 86 to cause the pins of projections 92 (see Fig. 10) thereon to shift the yoke-shaped members 87, and to rock the arm 105 (see Fig. 5) to move the sleeves 73 in a direction to position the gears 74 so that they will mesh with the respective gears 71. 1, 17 hen the gears 74 are properly positioned, the slide 129 (see Figs. 11 and 13) will have assumed a position that the recess 135 will be positioned to receive the extremity 128 of the bar or rod 123. Thus positioned, the stem 56 of the controller bar or key, (see Fig. 4) may be actuated to rock the dog and the shaft 52 so as to release the dog 45 and thereby connect the power shaft with the mechanism so that the shafts 21 will be rotated and the shafts 27 will then be r0- tated through the medium of the gears 71, 74. When the respective number bearing members reach the zero. position, that is, with the zero in reading position, the space 75 on the gears 74 will be adjacent the teeth of the gears 71, so that the respective gears 71 will not move the gears 74. When the gears 74 are positioned to mesh with the gears 71, the member 81 will be adjusted to 10 project the pins 85 into the path of movement of the pins 79 on the number bearing members 11. When the space 75 is in proximity to the teeth of the gears 71 the pins 79 will engage the pins 85 on the memher 81 and the number bearing member 41 will be arrestedin its movement and held against overthrow. After the machine has been thus cleared the lever 93 may be shifted in the opposite direction about its pivot, to move the gears 74.- out of mesh with the gears 71 and when the gears 7 1 have been properly positioned by this movement of they lever 93, the other recess 134. of the slide 129 will be in a position to receive the ex- 26 tremity 128 of the bar or rod 123 to permit the machine to be operated for calculation.

Before thelever 93 can be shifted to throw the clearing mechanism out of operation,

the catch 99 must be tripped and this is -40 operate the members to clear the latter of such amounts, and means adapted to be set by the:last said means for controlling the degree of movement of the members by the said clearing mechanism.

- 2. In a machine of the class described, the

combination of a registry embodying rotatable number bearing members, means for rotating the same-to register amounts thereon, means for also-rotating the members in the samev direction as they are rotated to register, to clear them of suchamounts, and means adapted to be set to arrest the movement of the said members by the said clearing mechanism.

3. In a machine of theclass described, the combination of a register embodying rotatable number bearing members, meansfor rotating the same to register amounts thereon, means for also rotating the members in the same direction in which they are rotated to register, to clear them of such amounts, and a stop adapted to be set to arrest the movement of the saidmembers by the said clearing mechanism.

4. In a machine of the class described,

. anism.

and means for automatically releasing the the combination of a register embodying rotatable number bearing members rotatable in one direction only, means for rotating the same to register amounts thereon, means for also rotating the members to 5 clear them of such amounts, and means adapted to be set to arrest the movement of the said members by the said clearing mecha constant direction of rotation, mechanism for imparting variable movements to said members to registeramounts thereon, mechc.

anism operatively connected with the first recited mechanism and adapted to be set to actuate said members to clear the latter of such amounts, and means for locking the second recited mechanism in its set position. 85.

6. In a-machine of the class described, the combination of a register embodying rotatable number bearing members having a constant direction of rotation, mechanism for imparting variable movements to said members to register amounts thereon, mechanism operatively connected With the first recited mechanism and adapted to be set to actuate said members to clear the latter of such amounts, means for locking the second recited mechanism in its set porsition and means for releasing the latter.

7. In amachine of the class described, the combination of a register embodying rotatable number bearing members having a constant direction of rotation, mechanism for imparting variable movements to said members to register amounts thereon, mechanism operatively connected with the first recited mechanism and adapted to be set to actuate said members to clear the latter of such amounts, means for locking the second recited mechanism in its set positiomI' latter.

8. In a machine of the class described, the combination of a register embodying! rotatable number bearing members rotatable .in one direction only, mechanism -for iniparting variable movement to'the"member's 1-1 toregister amounts 'thereon, mechanism adapted to be setfor also imparting rota?- tion to said members for clearingithem of such amounts, and means controlled by the last recited mechanism and adapted to be 2 set to limit the movement imparted .to the said members by the second recited mecha nism.

9. In a machine of the class described,

the combination of a register embodyingzmfi rotatable number bearing members rotatable in one direction only, mechanism for 1mpart ng variable movement to the members to register?" amounts thereon, mechanism adapted to beset for imparting rota-13 d of the class described, 75 the combination of a register embodying tion to said members for clearing them of such amounts, and means operating in unison with the last recited mechanism and adapted to be set to limit the movement imparted to the said members by the second recited mechanism.

10. In a machine of the class described, the combination 'of a register embodying rotatable number bearing members rotatable in one direction only, mechanism for imparting variable movement to the members to register amounts thereon, mechanism adapted to be set for also imparting rotation to said members for clearing them of such amounts, and stops adapted to be set by the setting of the last recited mechanism and with which the number bearing members cooperate whereby the members will be arrested in their movement by the second recited mechanism.

11. In a machine of the class described, the combination of a register embodying rotatable number bearing members rotatable in one direction only, mechanism for imparting variable movement to the members to register amounts thereon, mechanism adapted to be set for also imparting rotation to said members for clearing them of-such amounts, and means adapted to be set by the setting of the last recited mechanism and with which means the number bearing members cooperate,,whereby the members will be arrested in their movement by the second recited mechanism when the members reach predetermined positions.

12. In a machine of the class described, the combination of a register embodying rotatable number bearing members, means for rotating said members to register amounts thereon, means for also rotating the members in the same direction in which they are rotated for registering, to clear them of such amounts, and means for preventing overthrow of the members when actuated by the second recited means.

13. In a machine of the class described, the combination of a register embodying rotatable number bearing members having a constant direction of rotation, means for rotating said members to register amounts thereon, means for also rotating the members in the same direction in which they are rotated for registering to clear them of such amounts, and means for preventing overthrow of-the members when actuated by the second recited means.

1 In a machine of the class described, the" combination of a register embodying rotatable number bearing members, means for actuating the same to register amounts thereon, means ada 'ited to be set to also actuate said members to clear the latter of such amounts, means for rendering the second recited means inactive when the number bearing members assume predetermined positions, and means for preventing overthrow of the said members when actuated by the second recited means.

15. In a machine of the class described, the combination of a register embodying rotatable number bearing members having a constant direction of rotation, means for actuating the same to register amounts thereon, means adapted to be set to also actuate said members to clear the latter of such amounts, means for rendering the second recited means inactive when the number bearing members assume predetermined positions, and means for preventing overthrow of the said members when actuated by the second recited means.

16. In a machine of the class described, the combination of a. register embodying rotatable number bearing members, means for actuating 'the same to register amounts thereon, means adapted to be set to also actuate said members to clear the latter of such amounts, means for rendering the second recited means inactive when the number bearing members assiune predetermined positions, and means embodying a stop movable into and out of operating-position for preventing overthrow of the said members when actuated by the second recited means.

17. In a machine of the class described, the combination of a register embodying rotatable number bearing members, means for actuating the sameto register amounts thereon, means adapted to be set to also actuate said members to clear the latter of such amounts, means for rendering the second recited means inactive when the number bearing members assume predetermined positions, means embodying a stop movable into operating position for preventing overthrow of the members when actuated by the second recited means, and means tending normally to move the stop out of operating position.

1.8. In a machine of the class described, the combination of 'a register, embodying rotatable number bearing members, means for actuating the same to register amounts thereon, means adapted to be set to also actuate said members to clear the latter of such amounts, means for rendering the second recited means inactive when the number bearing members assume predetermined ,positions, a stop for preventing overthrow of the number bearing members when actuated by the second recited means, and means tending normally to move the stop out of operating position, said stop adapted to be rendered active against the tension of the last recited means by the setting of the second recited means.

19. In a machine of the class described, the combination of a driving and a driven element, a rotatable number bearing member connected with the driven element for rotaelements for rotating the number bearingmember to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing member to clear the same of such amounts, and means for controlling the last said means at will.

20. In a machine'of the class described, the combination of a driving and a driven element, a rotatable number bearing member connected with the driven element for rotation therewith and having aconstant' direction of rotation, means for connecting said elements for rotating the number bearing member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the'number bearing member to clear the same of such amountsyand means for controlling the last said meansat will. 21. In a machine of the class described, the combination of a driving and a driven element, 'a rotatable number'bearing member connected with the driven 'element for rotation therewith, means for connecting said elements for rotating the number hear ing member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing member to clear the same of such amounts, means for controlling. the last said means at will, and means whereby the last recited connecting means will be rendered inactive automatically when the said number bearing member assumesa predetermined position. 22. In a machine of the class described, the combination'of a driving and a driven element, a'rotatable number bearing member connected with the',driven element for rotation therewith, means for connecting said elements for rotating the number hearing member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing members to clear the same of such amounts, means for controlling the last said means at will, means whereby the last recited connecting'means will be rendered inactive automatically when the number bearing mem ber assumes a predetermined position, and means for preventing overthrow of the number bearing member when the last recited connecting means is rendered inactive.

2,3. In 'a machine. of the class described,

I the combination of a driving and a driven element, a rotatable number bearing member connected with the driven element for rotation therewith, means for connecting said elements for rotating the number bearing member to add amounts thereon, means for controlling the lastsaid means, additional means for connecting the said elements for operating the number bearing members to clear the same of such amounts, means for,

necting means is rendered inactive, said overthrow .preventing means embodying a stop'controlleo by the second recited connecting means.

' '24. In a machine of the class described, the combination of. a driving and a driven element, a rotatable number bearing member connected with the driven element for rotation therewith, means for connecting said; elements for rotating the number bear,- ing' member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing members to clear the same of such amounts, means for controlling the last said means at will, means whereby the last recited connecting means will be rendered inactive automaticallywhen the number bearing member assumes a predetermined position, and means for preventing overthrow of the number bearing member when the last re-' cited connecting means is rendered inactive, said overthrow preventing means embodying a normally inactive stop adapted to be rendered active when the second recited connecting means is rendered active.

25. In a machine of the class described, the combination of a driving and a driven element, a rotatable number bearing member connected with the driven element for rotation therewith, means for connecting said elements for rotating the number. bearing member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing members to clear the same of such amounts, means for controlling the last said means at will, means whereby the'last recited connecting means will be rendered inactive automatically when the number bearing member assumes a predetermined position, and means ior preventing overthrow of the number bearing member when the last recited connecting means is rendered inactive, said overthrow preventing means embodying a stop adapted to be rendered active and mactirve by the second recited connecting means when the latter is rendered active and inactive respectively. 7

26. In a machine of the class described, the combination of a driving and a driven element, a rotatable number-bearing member connected with the'driven element for rotation therewith, means for connecting said elements for rotating the number bearing member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing members to clear the same of such amounts, means for controlling the last said means at will, means whereby the last recited connecting means will be rendered inactive automatically when the number bearing member assumes a predetermined position, means for preventing overthrow of the number bearing member when the last recited connecting means is repdernd inactive, said overthrow preventing means embodying a stop adapted to be rendered active and inactive by the second recited connecting means when the latter -is rendered active and inactive respectively, and means for locking the stop and the second recited connecting means in active positions.

27. In a machine of the class described, the combination of a driving and a driven element, a rotatable number bearing member connected with the driven element for rotation therewith, means for connecting said elements for rotating the number bearing member to add amounts thereon, means for controlling the last said means, additional means for connecting the said elements for operating the number bearing members to clear the same of such amounts, means for controlling the last saidmeans at will, means whereby the last recited connecting means will be rendered inactive automatically when the number bearing member assumed a predetermined osition, means for preventing overthrow oi the number bearing member when the last recited connecting means is rendered inactive, said overthrow preventing means embodying a stop adapt ed to be rendered active and inactive by the second recited connecting means when the latter is rendered active and inactive re; spectively, means for locking the stop and the second recited connecting means in active positions, and means for automatically unlocking the locked parts.

28. In a machine of the class described, the combination of a driving and a driven element, a number bearing member having a constant direction of movement and connected with the driven element for rotation therewith, means adapted to connect the said elements to operate the number bearing member to register amounts thereon, additional means adapted to connect said elements to operate the number bearing member to clear the latter of such amounts, the last said means embodying cooperating gears having relative lateral movement, and means for imparting such relative movement to the gears to render said connection operative and inoperative at will.

29. In a machine of the class described,

the combination of a driving and a driven element, a number bearing member having a constant direction of movement and connected with the driven element for rotation therewith, means adapted to connect the said elements to operate the number bearing member to register amounts thereon, additional means adapted to connect said elements to operate the number bearing memher to clear the latter of such amounts, the last said means embodying cooperating gears having relative lateral movement, means for imparting such relative movement to the gears to render said connection operative and inoperative at will, and means controlled by the relative movement of the gears for preventing overthrow of the num ber bearing member.

30. In a machine of the class described, the combination of a driving and a driven element, a number bearing member having a constant direction of movement and connected with the driven element for rotation therewith, means adapted to connect the said elements to operate the number bearing member to register amounts thereon, additional means adapted to connect said elements to operate the number bearing member to clear the latter of such amounts, the last said means embodying cooperating gears having relative lateral movement, means for imparting such relative movement to the gears to place them in and out of position to mesh, and means 'for disconnecting said gears when the number bearing member assumes a predetermined position and while the gears are in position to mesh. 7

31. In a machine of the class described, the combination of a driving and a driven element, a number bearing member having a constant direction of movement and connected with the driven element for rotation therewith, means adapted to connect the said elements to operate the number bearing member to register amounts thereon, additional means adapted to connect said elements to operate the number bearing member to clear the latter of such amounts, the last said means embodying cooperating gears having relative lateral movement, means for imparting such relative movement to the gears to place them in and out of position to mesh, means for disconnecting said gears when the number bearing member assumes a predetermined position and while the gears are in position to mesh, and means for preventing overthrow of the number bearing member when the gears are thus disconnected;

32. In a machine of the class described, the combination of a driving and a driven element, a number bearing member having a constant direction of movement and connected with the driven element for rotation therewith, means adapted to connect the said elements to operate the number bearing member to register amounts thereon, additional means adapted to connect'said elements to operate the number bearing Inem- 7 'when the number bearing member assumes a predetermined position and while the gears are in position to mesh, and: means controlled by the relative-movement of the gears for preventing overthrow of the number bearing members when the gears are thus disconnected.

33. In a machine of the class described, the combination of a driving and a driven element, a number bearing member having a constant direction of movement and connected with,the driven element for rotation therewith, means adapted to connect the said elements to operate the number bearing member to register amounts thereon, additional means adapted to connect said elements to operate the number bearing member to clear the latter of such amounts, the

last said means embodying cooperating gears having relative lateral movement, means for imparting such relative movement to the gears to place them in and out of position to mesh, means for disconnecting said gears when the number bearing member assumes a predetermined position and While the gears are in, position to mesh, anda stop adapted to be set by the relative movement of the gears for preventing overthrow of the number bearing member when the gears are thus disconnected.

34. 'In' a machine of the class described, the combination of a driving and a driven element, a number bearing member having a constant direction of rotation, connected with the driven element for-rotation thereby, means connecting the' elements for rotating the number bearing member to register amounts thereon, additional means for connecting the elements to rotate the number bearing member to clear the latter of such amounts, the last recited means em bodying cooper-a ting gears movable into and out of position to mesh, and means for thus moving thegears, one of said gears being mutilated whereby the gears will be rendered inactive when the number bearing member reaches a predetermined position.

35. Ina machine of the class described, the combination of a driving and 'a driven element, a number bearing member having a constant direction of rotation, connected with the driven element for rotation thereby, means connecting the elements for rotating the number bearin member to register amounts thereon, ad 'tional means for a constant direction of. rotation, connected with the driven element for rotation thereby, means connecting the elements for rotating the number bearing member to register amounts thereon, additional means for connecting the elements to rotate the number bearing member to clearthe latter of such amounts, the last recited means em bodying cooperating gears movable into and out of position to mesh, means for thus moving the gears, one of said gears being provided with a mutilated portion whereby the gears will be rendered inactive when the number bearing member reaches a predetermined position, and means for pre venting overthrow of the number bearing member when the gears are thus rendered inactive.

37. Inamachine ofthe class described, the combination of a driving and a driven element, a number bearingmember having a constant direction of rotation, connected with the driven element for rotation thereby, means connecting the elements for rotating the number bearing member to register amounts thereon, additional means for connecting the elements to rotate the number bearing member to clear the. latter of such amounts, the last recited means embodying cooperating gears movable into and out of position to mesh, means for thus moving the gears, one of said gears being provided with a mutilated portion Whereby the gears will be rendered inactive when the number bearing member reaches a predetermined position, a stop carried with the number bearing member and a stop controlled by the movement of the gears into and out of meshing position and cooperating with the first recited stop to prevent overthrow of the number bearing member.

In a machine of the class described, the combination of a driving and a driven element, a register embodying a rotatable number bearing member connected with the driven element for rotation thereby and having a constant direction of rotation,

hie-ans for connecting said elements to retate the number bearing member to register amounts thereon, additional means connectmg said elements to rotate the number bearing member to clear the latter of such amounts, the last recited means embodying cooperating gears adapted for relative lateral movement, means for imparting such element, a register embodying a rotatable number bearing member connected with the driven element for rotation thereby and having a constant direction of rotation, means for connecting said elements to rotate the number bearing member to register amounts thereon, additional means con meeting said elements to rotate the number bearing member to clear the latter of such amounts, the last recited means embodying cooperating gears adapted for relativelateral movement, means for imparting such relative movement to place the gears in position to mesh, means for locking the parts in. such position, power means for imparting motion to the driving element, means for rendering the gears inactive while in meshing position when the number bearing member assumes a predetermined position, and means controlled by the power mechanism for automatically unlocking the parts.

40. In a machine of the class described, the combination of a driving and a driven element, a register embodying a rotatable number bearing-member connected with the driven element for rotation thereby and having a constant direction of rotation, means for connecting said elements to rotate the number bearing member to register amounts thereon, additional means connecting said elements torotate the number bearing member to clearthe latter of such amounts, the last recited means embodying cooperating gears adapted for relative lateral movement, means for imparting such relative movement to place the gears in position to mesh, means for locking the parts in such position, power means for impart ing motion to thedrivin element, means for rendering the gears inactive while in meshing position when the number bearing member assumes a predetermined position, means for preventing overthrow of the number bearing member when the gears are thus rendered inactive, and means, controlled by the power mechanism for auto matically unlocking the parts.

41. In a machineof the class described, the combination of a register embodying a rotatable number bearing member having a constant direction of rotation, operating mechanism therefor for registering amounts thereon, means adapted to he set to operate the said member to clear the same of such amounts, means embodying a lever for setting such parts, a catch cooperating with the lever for locking the parts in set position, power mechanism for imparting motion to the said operating mechanism and a cam operating in unison with the said operating mechanism for automatically tripping the catch.

42. In a machine of the class described,

the combination of a register embodying a rotatable number bearing member having a constant direction of rotation, operating mechanism therefor for registering amounts thereon and embodying selecting mechanism adapted to be set for imparting variable movement to the member and keys for setting said mechanism, means adapted to be set to clear the said member of such amounts, means embodying a lever for setting the last recited means, and means controlled by said lever for restoring the said selecting mechanism.

43. In a machine of the class described, the combination of a register-embodying a rotatable number bearing member having a constant direction of rotation, operating mechanism therefor for registering amounts thereon and embodying selecting mechanism adapted to be set for imparting variable movement to the member and keys for setting said mechanism, means adapted to be set to clear the said member of such amounts, means embodying a lever for setting the last recited means, means controlled by said lever for restoring the said selecting mechanism, power mechanism, a normally inactive connection between the power and the said operating mechanism, means for controlling the connection, and means for preventing actuation of the last said means until the first recitedmeans'is properly set.

44. In a machine ofthe class described, the combination of a register embodying a rotatable number bearing member having a constant direction of rotation, operating mechanism therefor for registering amounts thereon and embodying selecting mechanism adapted to be set for imparting variable movement to the member and keys for settingsaid mechanism, means adapted to be set to clear the said member or such amounts. means embodying a lever for setting the last recited means, means controlled by said lever for restoring the said selecting mechanism, power mechanism. a nor mally inactive connection between the power and the said operating mechanism. means for controlling the connection, and means operatively related to said lever for looking the last recited means against actuation until the first recited means is properly set.

45. In a machine of the class described, the combination of a register embodying a Sad rotatable number bearing memberhaving a constant direction of rotation, operating mechanism therefor for registering amounts thereon and embodying selecting mechanism adapted to be set for imparting variable movement to the member and keys for setting said mechanism, means adapted to be set to clear the said member of such amounts, means embodying a lever for setting the last recited means, means controlled by said lever for restoringthe said selecting mechanism, power mechanism, a normally inactive connection between the power and the said operating mechanism, means for controlling the connection, and means-for locking the last said means against actuation until the first said means is properly set, said locking means embodying a shoul-' dered element and a slide provided with a recess to receive said shoulder, said slide being movable to displace the recess with respect to the said shoulder.

46. In a machine of the class described, the combination of aregister embodying a rotatable number bearing member having a constant direction of rotation, operating mechanism therefor for registering amounts thereon and embodying selecting mocha 'ing a shouldered element and a slide provided with a recess to receive said shoulder, said slide being operatively connected with the lever and movable thereby to displace the recess with respect to the said shoulder.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 7th day of July, A. D. 1911.

OTTO MALCHER.

Witnesses:

NINA J. HALSNE, ESMIE WALTON.

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