US1226315A - Combined type-writing and computing machine. - Google Patents

Description

G. O; DEGENER.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

Patented May 15, 1917.

4 SHEETS-SHEET I.

APPLICATION FILED JULY 27.1911.

G. 0. DEGENER.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED IULY 27.19M-

Patented May15, 1917.

4 SHEETS-SHEET 2.

3Q Q. Q m fi 1 w k N v I GGQ Patented May15, 1917.

4 SHEETS-SHEET 3.

s. 0. DEGENER.

APPLICATION FILED JULY 21.19!!- COMBINED TYPE WRITING AND COMPUTING MACHINE.

Patented May 15, 1917.

4 SHEETS-SHEET 4.

G. 0. DEGENER. comsmeo TYPE'WRITING AND COMPUTING MACHINE.

APPLiCATlON FILED JULY 21,191]- 1,226,315.

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UNITED STATES PATENT omnou.

GUSTAVE o. m eENEa, on NEW YORK, iv. Y., Assieivoa 'ro UNDERWQOD, COMPUTING MACHINE COMPANY, or NEW YORK, 1v. Y., A CORPORATION or NEwJYoaK.

i COMBINED TYPE-WRITING AND COMPUTING MACHINE.

Application filed July 27, 1911.

To oil whom it may concern:

Be it known that I, GUSTAVE O. DEGENER, a citizen of the United States, residing in New York city, in the county of New York and State of New York,'have invented certain new and useful Improvements in Combined Type-lVriting and Computing Machines, of which the following is a specification.

This invention relates to an improvement in computing typewriters, and especially to a comma space locking device, and is an improvement on applications No. 485,046, filed March 22, 1909 and No. 556,378, filed April 19, 1910 by Walter lVright, and also upon my Patents No. 990,23 dated April -25, 1911, and No. 1,020,082, dated March 12,

The object of this invention is to prevent, in a computing typewriter, the computation at improper points in the actuation of the machine. This is shown embodied in this case not only to prevent computation, but also to the extent of preventing imprinting of the numerals at predetermined intervals, such as have been found in practice as likely to cause trouble. These intervals may be best illustrated by points at which a comma or period should be located between the hundreds and thousands, thousands and millions, etc., and between the in tegers and decimal fractions of a whole numher in one or more columns to be tabulated and computed.

Another object of this invention is to provide means for selectively controlling the instant at which the computing and imprinting, in a computing typewriter, may be interrupted or interfered with.

A still further object of this invention is to controlthe computing and imprinting of a computing typewriter, so that it may be interrupted at predetermined intervals, and further in such a manner that the control mechanism can be disconnected or connected at will to render the same inactive or active.

In the embodiment utilized to illustrate this inventiomthe tabulating stops are utilized to actuate certain trippers, which in turn, through the intermediary of connecting mechanism such as levers, interpose an obstructing or interfering blade or member in the path of motion of other blades or members connected to the numeral. keys,

Specification of Letters Patent.

Patented May 15, 1917.

Serial No. 640,752.

whereby the numeral keys are locked against actuation, and thus the computing and imprinting mechanisms actuated or controlled by the numeral keys are locked against actuation.

These aucl further features, together with the construction and combination of parts, will be described more fully hereinafter and particularly pointed out in the claims.

In the accompanying drawings,

Figure 1, is a side elevation, partly in section, of the present improvements applied to an Underwood front strike typewriting machine.

Fig. 2 is a plan view of the principal devices seen at Fig. 1.

Fig. 3 is a sectional. elevation to show the grouping of the interfering blades, one of which is shown as moved across the common center to effective position, thus blocking the operation of the remaining blades.

Fig. 4 is a perspective view of the principal elements of the mechanism attached to the computing mechanism seen at Fig. 1, particularly the locking devices.

Fig. is a sectional view of the interfering blades or members, showing, in its effec tive position, the extra blade which is utilized to interrupt the action of the numeral keys, and thus the computing and imprinting. mechanism at predetermined intervals corresponding to the position of the carriage at points where a comma or period should be struck.

Fig. 6 is a sectional front elevation of a fragment of the computing mechanism showing the master wheel, its shaft, the gearing connected to said shaft, and some of the computing wheels meshing with said master wheel.

Fig. 7 is a fragmentary front view in elevation, showing such details as are necessary to connect the improved mechanism with cooperating mechanism.

T z pcwritng mechanism.-The typewriting mechanism includes alphabet and character keys 1 and numeral keys 2, all mounted upon levers 3, having returning springs and connected by means of elbow levers with type-bars 6, to cause the latter to swing upon pivots 8 to the platen 7.

Each type-bar carries a. heel 9, to press rearwardly a universal bar 10, mounted upon a frame 11, the latter pivoted at its rear end to idle arms 12*. Said universal bar frame 11 swings rearwardly a dog rocker 12 carrying a feeding dog 13 and a detent dog 14-, whereby a pa' ')er-carriage 15 is given its letter-feeding motion, said carriage being propelled by a spring 15. Said dogs move into and out of engagement with an escapement wheel 16, which is connected to a pinion 17 the latter meshing with a rack 18 upon said carriage. Upon the universal bar is provided an actuator 19 for a ribbon-vi.- brating lever. As so far described, the parts are in common use upon the Underwood typewriting machine.

lVhenever a key is depressed, the elbow lever 5 is swung forwardly, and the typebar is swung rearwardly against the platen to make an impression thereon, and the universal bar pushes the feeding-dog 13 out of engagement with the escapement wheel 16, and the detent dog 14 into engagement with said wheel; no letter-feeding motion of the carriage occurring at this time. Upon relieving the key from pressure, the parts are returned to normal positions in the usual manner, the universal bar being returned by a spring 21., and moving the detent out of engagement with the escapement wheel 16, and the feeding-dog 14 into engagement therewith; said. feeding-dog permitting the carriage to advance a letter space under the influence of the driving spring 15, as usual. Computing mcchanis m .Arll of said keys control the letter-feeding movements of the carriage 10; but only the numeral keys 2 are connected to the computing mechanism, which is power-driven, its motor being in dicated at 22, and being connected by a suitable train of gearing 'to the adding wheels 23, and a primary escapement wheel 24, the latter being under the control of the numeral keys 2, whereby the keys are enabled to determine how far the computing wheels 23 shall be rotated by the motor 22.

Preferably, the motor 22 is constantly revolving, although the primary escapement wheel 24 remains motionless, together with the computing wheels, until the keys 2 are operated. Theconneetion from the motor includes any suitable clutch 25, whereby is driven a shaft 26, the latter having a pinion 27 meshing with. a pinion 28, whereby is rotated a. shaft 29, having at its opposite end a pinion 30. To the last is connected, by means of a gear 31, a pinion. upon a shaft 33, the latter also having a pinion 34, which is connected by means of a pinion 35 to vertical shaft 36, the latter carrying a pinion 37, meshing with a pinion 38 fixed upon shaft 39, which carries a master-wheel 40, arranged interiorly of a series of computing wheels, in the shape of rings 41, having internal teeth 42 to engage the proj ec'ting master-wheel teeth. The computing wheels are supported upon a special carriage or frame 43, which is connected by arms or lugs 44 to the typewriter carriage 15, to travel therewith, whereby the com puting wheels are given a denominational movement, relatively to the stationary master-wheel, at every letter-feeding movement of the main carriage 15.

For carrying tens from one computing wheel to the next, there may be employed any suitable means. The wheels 41 mesh with mnnber-bearing wheels 41.

The primary escapement wheel 24 is connected to the described train of gearing by means of pinion 45, on the shaft of the escapement wheel, said pinion meshing with gear 46 fixed to gear 31 already described. Said escapement wheel 24 carries a set of settable pins or teeth 47, one of which projected and in engagement with a fourtoothed pinion 48, which is connected to a secondary escapemeut wheel 49, the latter normally pressing against a detent dog 50.

The rocking of said dog 50 permits the tooth of the secondary cscapement wheel 49 to escape from said dog and be caught by a feeding dog 50"; and the return movement of the dogs permits the wheel 49 to escape or feed, so that the succeeding tootlr of the four-toothed pinion 48 may be engaged by the next projected tooth 47, to arrest the primary eseapement wheel 24-, and hence the described train of gearing, including the computing wheels 41.

Theescapement or index pins 47 are projected by means of the numeral keys 2, the latter being connected by links 51, pendent from bell-cranks and having hooks 53 to engage suitable projections or parts 54 on the key levers 3. The bell cranks are connected by horizontal links to arms 56, suitably pivoted at 57, and preferably formed. at their opposite ends with jacks 58, for forcing the escapemcnt pins 47 from normal positions to projected positions. to enable them to engage the four-toothed pinion 48. The arms 56 are normally adapted to eng go a universal disk or member 63, around which the arms are grouped radially. Said disk is mounted upon a guide rod 69 and has a returning spring 70. Upon the rod '6!) is provided a head or collar 71, and the end of a lever 72 is confined between said head and said universal bar or member 68 to be operated thereby. The lever is pivoted at 73 to any fixed sup-- port, and connected by a link 61 to an arm 60 and a rock shaft 59, so as to enable any of the numeral keys 2 to rock or reciprocate the dogs 50, 50, to control the starting and stopping of the primary escapement wheel 24 of the computing mechanism.

0peraiion.-ln the operation of the parts so far described, the keys 1 may be manipulated for ordinary typewriting in the manner already set forth. lVhen a numeral key 2 is depressed, it also swings up its typebar to print, and the type-bar operates the universal bar 11 of the letterfeeding mechanism, the rear of the latter engaging a projection 12 on the dog rocker and moving the feeding-dog 13 out of engagement, and the detent dog 14: into engagement with the escapement wheel 16. At the same time the link 51 is pulled down by said key, and bell crank 52 is turned, and by means of the link 55 swings arms 56,thereby operating the universal member 68 and the lever 7 2, which, through the thrust link 61 and the rock arm 60, turns the rock shaft 59 and the dogs thereon and permits the secondary escapement wheel 49 to escape from the detent dog 50 which corresponds to the limber dog usually employed in the carriage feeding mechanism of typewriting machines. Thus the pins 47 and their associated parts form an indexing mechanism determining how far the master wheel shall turn.

During the swinging of the arm 56 cffected. by the depression of the key 2, the jack 58 on said arm engages the adjacent pin 47 on the main cscapement wheel 24:, and projects the same into position to engage the four-toothed pinion 48. No other movement of any part of the adding mechanism occurs upon the down stroke of the key; the adding wheels all remaining stationary upon such down stroke.

Upon the relief of the key 2 from pressure, the type bar and key lever are returned to normal positions, together with arm 56, jack 58. universal member 68, and the parts connected to the latter, including the lever 72., Upon the return of the type bar from the platen, the spring 21 moves the universal bar forwardly, and the detent dog 14 escapes from, and the feeding-dog 13 moves into the line with, the escapement wheel 16 of the carriage 15, and the spring 15 is permitted to pull. said carriage the width of one letter.

The universal member 68, and its con nected parts, are returned to normal positions by the spring 70. The secondary escapement wheel 49 escapes from the dog 50, and the motor 22 operating through the clutch 25, now drives the gearing of the computing mechanism, and the escape mcnt wheel 24 revolves until it is arrested by that tooth 47 which was projected by the key 2 just released. The previously projected pin is returned to normal position by a fixed cam 73. The projected pin 4:7 determines the extent of rotation of the power driven primary escapement wheel 24. and hence of the master wheel 40 and of the computing wheel 41 with which the master wheel is at the time in engagement.

This release of the secondary escapement wheel a9 occurs at the final portion of the letter feeding movement of the paper carriage 15. The succeeding tooth of the secondary escapement wheel 49 is arrested by the dog 50.

It will be seen that the relative denominational movement between the computing master wheel .40 and the computing wheels tl is controlled by the carriage 15; the carriage 43 connected thereto being caused to move from one denomination to the next at each letter-feeding movement of the carriage 15.

Means for enabling ea eh numeral key to inter ere with the operation 0/ the other na1neraZ]ceys.Each of the key-operated arms 56 may be provided with an interference member in the form of a blade 80 which may be in the form of a segment having the pivot 57 as a center. These blades 80, which are carried upon the ends of extensions 81 of said arms 56, are loosely mounted or supported in a series of radial slots 82 formed in a fixture 83, and the tips of the blades lie in a row which forms the principal portion of a, circle around a small central opening 84 in said support 83. So long as said opening occupied by any blade, no other blac e can pass through said opening, as it will encounter the first blade; and hence it is impossible to operate any of the remaining figure keys until the first key is returned to or substantially to normal position. Thus, each numeral key 2 interferes with the operation of all the other numeral keys, so that it is not practicable to depress more than one numeral key at a time; and as soon as one numeral key is partly depressed, the depression of any other numeral key is prevented.

e now come to the particular improve ment whereby the imprinting and computing is controlled indirectly through the interference with the action of the numeral keys. For this purpose the tabular stops, indicated at 11 1, are utilized to actuate successively a series of trippers 115, one of which is provided for each of the points where it is desired to interrupt the action of the computing and imprinting mechanism, and also the action of the numeral keys. As shown in this case, three of these trippers are provided corresponding to the comma and period between millions and thousands thousands and hundreds, and be tween the whole number and a decimal fraction of a whole number, and for this purpose are spaced apart a distance corresponding to three characters or numerals. While the trippers 115 may be of any suitable form, they are shown to consist of bell crank levers having one arm 116 provided with a cam head which will permit the stops 114 to ride over the trippers in either direction, and thus depress them, causing the bell crank levers to swing about their .pivots. The other arm of each bell crank lever,

indicated at 117, is adapted to actuate a bar 118 in any suitable manner, as for example, by extending at .its end into a socket or slot 119 provided therein. It will thus be seen that when one of the tabular stops rides over any one of the trippers 115, it will depress one arm of the same, and thereby shift the bar 118 in a longitudinal direction, so that it will in turn actuate through the intermediary of a connecting link 120 a lever 121 against the tension of a spring 122 which is adapted to return the bar 118, and thus the tli'l'JPQl'S 1.15, to a normal position. The lever 121 may he pivoted intermediate its ends, as at 123, and may be provided with a reduced portion at 121 which extends between the forks of the obstructing end of a lever 125, which may likewise be pivoted intermediate its ends, and connected at the opposite end from the obstructing end by means of a link 1% to an interrupting or obstructing member 127, which shown in the form of a blade adapted to act similar to the blades to prevent movement of any one of them, while it is forced across their common path, due to the depression or actuation. of any one of the trippers 115.

It will be seen that the stops 11% are detachably connected to a bar 128 by being slotted so as to form a pair of forks, one of which is adapted to engage in slots 129 above the bar and the other of which is adapted to engage slots 180 on the under side of the bar. In view of the fact that the bar 128 may be slotted throughout its length, these stops can be located at any one of a plurality of positions, so that the exact points at which the stops will actuate the tripper may be selectively controlled, so as to selectively control the points at which the operation of the mechanism will be interrupted or interfered with. It is, of course, to be understood that the bar 129 travels along with the carriage l5, and may be connected thereto in any suitable manner for this purpose. This renders the interfering or locking mechanism controllable by the carriage, according to the particular position of the carriage, so that to a certain extent it may be said that the computing and imprinting mechanism, and the keys themselves are controlled in their operation from and by the carriage, so as to render them active or inactive at certain points in the movement of the carriage.

In view of the fact that the stops 114 can be entirely removed or at least positioned in the slots 129 and 130 so as not to overlie the trippers 115, the actuation of the trippers, and thus the interruption of the action of the numeral keys and the adding and imprinting mechanism, can be discontinued at the will of the operator. For example, the tabulating stops 1141- can be entirely removed, and it will thus be evident that the trippers 115 will not be depressed, but will remain in their normal raised position, so that there will be no interruption of the action of the parts or the locking thereof, due to this source.

lVhile l have shown one embodiment of my invention, 1- do not wish to be limited to the specific details thereof, but desire to be protected in the various changes, alterations and modifications, which may come within the scope of the invention. 1 do not, however, claim the inventions shown in said application of Wright, No. 485,046, or in the application of Hart, No. 4.66 36, filed December 10, 1908, or shown in any divisions of said applications.

Having thus described my lIIVGlltiOIl, I claim:

1. In a combined typewriting and com.- puting machine, the combination with typewriter numeral keys and a traveling carriage, of an adjustable stop forming part of a tabulating mechanism for positionin said carriage, computing mechanisn'i comprising indexing mechanism, connections between said indexing mechanism and said, keys, means between said indexing meclmnism and said keys for locking said keys, and connections whereby said locking means is controlled by said stop.

2. The combination with a carriage and a plurality of typewriter keys, of a computing mechanism controlled by said keys, a series of interfering members movable across a common path, so that each one when actuated will interfere with the movement of the rest of said members,'said members being operatively connected to certain of said keys, so as to control the action of said certain keys, a plurality of trippers pivotally mounted, a bar having sockets therein adapted to be engaged by each of said trippers, a lever, and an interfering member connected to said lever, a link connection movable into the path of said first-mentioned interfering members, so as to prevent the movement of the computing mechanism by certain of said keys at certain times, and means for operating said trippers at predetermined intervals.

8. The combination with a computing mechanism, of a. series of keys for controlling the action of said computing mechanism, a traveling member, stops for controlling the position of said member, and means operated by said stops for preventing the actuation of said computing mechanism by said keys.

41. In a combined typewriting and computing machine, the combination with a traveling typewriter carriage, of decimal tabulating mechanism for positioning said carriage, an adjustable stop forming part of said mechanism and adapted to arrest said carriage at any one of a plurality of columns determined by the position of the stop, typewriter numeral keys, computing devices under the control of said keys, and means whereby said stops are elfective to lock said. keys at a plurality of predetermined denominations in a column selected by said tabulating mechanism.

5. The combination with a computing mechanism, of numeral keys for actuating said computing mechanism, locking mechanism for said numeral keys, a series of trippers spaced apart at predetermined intervals, operative connections between said trippers and said locking mechanism where by the former may control the latter, a traveling member, and stops for controlling the position of said traveling member, said stops being arranged to engage said trippers and thus actuate said locking mechanism at predetermined points in the travel of said member.

6. In a combined typewriting and computing machine, the combination with a traveling typewriter carriage, of tabulating mechanism forming part of the typewriting mechanism, a stop forming part of said tabulating mechanism adapted to be selectively located to position said carriage, computing devices effective in a zone selected by said carriage, and means operated by said stop for locking said keys at a column in the travel of said carriage selected by said stop.

7. The combination with a computing mechanism, of a plurality of keys for controlling the action of said computing mechanism, individual interfering members connected to each of said keys and movable across a common path so that the actuation of one will interfere with the actuation of all the others, another interfering member movable across said common path to inter fere with the action of said first-mentioned members, a traveling carriage controlled in its movement by said keys, and carriage-controlled means for bringing into play said last-mentioned member at predetermined points in the travel of said carriage.

8. The combination with a computing mechanism, of a plurality of numeral keys for controlling the action of said computing mechanism, individual interfering members connected to said keys and movable at the actuation of said keys across a common path so that the actuation of one will interfere with the actuation of all the others, another member movable across said common path to interfere with the action of said first-mentioned members, a series of trippers, operas tive connections between said trippers and said last-mentioned member, a traveling carriage, and means on said carriage for actuating said trippers at predetermined points in the travel of said carriage.

9. The combination with a computing mechanism, of a series of numeral keys for actuating said computing mechanism, locking mechanism for preventing the action of said computing mechanism, a computing head arranged to receive the numbers computed by said computing mechanism and comprising a series of computing wheels spaced into groups, a plurality of trippers arranged in succession, a universal bar operated by said trippers and connected to operate said locking mechanism, a traveling carriage, a master wheel having a relative movement with respect to said computing wheels so as to come into register successively with said computing wheels and with the spaces between the groups of said computing wheels, and means carried by said carriage for concomitantly actuating individuals of said trippers and bringing said master wheel into register with the spaces between the groups of said computing wheels.

10. The combination with a carriage, of typewriting mechanism, computing mechanism, a series of keys for actuating both said typewriting and said computing mechanisms, a lock for preventing the actuation of both said typewriting and said computing mechanisms by said keys, stops for determining positions of said carriage, and connections enabling said stops to operate said lock at predetermined points in the travel of said carriage.

11. The combination with a traveling carriage, of typewriting mechanism cooperating with said carriage, computing mechanism, a series of keys operating both said typewriting and said computing mechanisms, tabulating mechanism for determining the position of said carriage, and locking means operable from said tabulating mechanism for preventing operations of said computing mechanism at predetermined intervals in the travel of said carriage.

12. In a computing machine, the combination with numeral. keys, radially-arranged key-interfering devices operated by said keys, and a cooperating radiallyarranged interfering device operated by the carriage for preventing the operation of any numeral key.

18. In a computing machine, the combination with a member having radial slots and devices working in said slots for controlling the action of numeral keys, of connections for operating said devices, a universal bar operated by each one of said 0011- nections, and a radial device also operating in one of said slots comprising a connection ineffective on said universal bar.

lt. A combined typewriting and computing machine, having numeral keys, computing mechanism, and a traveling carriage; and comprising, in combination, blades operated individually by said keys for preventing the simultaneous operation of any other key, and a blade operated by said traveling carriage to be moved to a posinumeral key, and means for locking said key tlon to cooperate wlth any of the blades opbrought mto action tlnrough the mcdlum oi emted by said keys, to prevent operation of said column stop.

all of said keys. GUSTAVE O. DEGENER.

15. In a combined typewriting and com- Witnesses:

puting machine, the combination with a car- J. E. LUCAS,

riage, of a column stop for said carriage, a J. E. DAVIDSON.

Copies 01' this patent may be obtained for five cents each, by addressing the Commissioner of Iatentm Washington, D. G.

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