Historical Document · 1889
US Patent 414,959: Adding Machine (C. H. Webb, improved)
Webb's improved adder, filed 28 April 1888 and granted 12 November 1889.
Historical Document · 1889
Webb's improved adder, filed 28 April 1888 and granted 12 November 1889.
(No Model.) C. H. WEBB. 2 sheets-Sheet 1. ADDING MACHINE, No. 414,959, 22%22.2 Patented NOW, 12, 1889. 22 INVENTOR *92-a-sas & 23ss). I -5%. , 6-is Attorney. PEERS, Photo-lithographer, washington, D.c. (No Model.) M 2. Sheets-Sheet 2, C. H. WEBB, ADDING MACHINE No. 414,959, Patented Nov. 12, 1889, CNS N . 227t WITNESSES: Attorney. UNITED STATES PATENT OFFICE. CHARLES HENRY WEBB, OF NEW YORK, N. Y. ADDING MACH NE. SPECIFICATION forming part of Letters Patent No. 414,959, dated November 12, 1889. Application filed April 28, 1888, Serial No. 272,179, (No model.) impulse or fraction of a revolution to the lesser To all whon, it may concern: Be it known that I, CHARLES HENRY or hundreds disk, thus adding one hundred 55 WEBB, a citizen of the United States, and a to the sum. resident of the city, county, and State of I will now describe the mechanism more New York, have invented certain Improve minutely. ments in Adding-Machines, of which the fol Referring to the drawings, A C represent a casing, usually made from cast metal. This lowing is a specification. My invention relates, in the main, to add casing has the form, by preference, shown in ing-machines of the class employing two add Figs. 1 and 2-that is to say, it consists of ing disks or wheels arranged tangentially and two circular parts A and Cl, formed in one having internal mechanism whereby, at each piece, and each having a raised rim or mar revolution of one of said disks, it imparts an gin b, provided with indentations, notches, or impulse or fraction of a revolution to the recesses c in its outer edge or face, whereby other disk; and one of the more important the machine may be conveniently secured in objects of my invention is to provide a ma place on a table or desk by pins or screws d, chine of this general character with interme as represented in Fig.1. These indentations diate mechanism whereby continuous rota c also facilitate the handling of the machine, tion of one adding-disk will impart regular as they enable the fingers to obtain a firm intermittent rotary motion to precisely the grasp thereon. proper extent of the other disk-that is to D is a ring-dial, which fits in a rabbet e, say, my mechanism not only enables the formed in the rim of the portion A. of the driver-disk to impart exactly the proper ex casing, and is, or may be, secured to the said tent of movement to the driven disk, but it rim by screws f. The ring-dial D is gradu 75 serves also as a stop to limit the movement ated or provided with one hundred gradua imparted to the latter. At the same time the tion - marks equally spaced and numbered driven disk is free to be rotated independ from 0 to 99 to form an index, as shown in ently of the other in setting the disks at start Fig. 1. At or adjacent to the number 0 the ring-dial is provided with an inwardly-pro ling. Other objects of my invention relate to fea jecting stop-piece g, the purpose of which will 3O tures of construction designed mainly to in be hereinafter explained. crease the durability of the machine and to In the center of the part A of the casing is facilitate the operation of adding there with. an aperture h, surrounded by a circular flange In the accompanying drawings, which serve i, which forms a large and firm journal for to illustrate my invention, Figure 1 is a face the units and tens adding disk E, which view of the machine. Fig. 2 is a view simi turns thereon. The boss of this disk is a lar to Fig. 1, but having parts of the machine snail-cam i, which has a bearing on the bot broken away to expose the internal mechan tom of the casing (see Fig. 3) adjacent to the ism. Fig. 3 is a transverse section online 33 journal i. At its outer edge the diskE takes in Fig. 2. Fig. 3 is a fragmentary sectional under the dial D, as seen in Fig. 3, and rests view on a scale double that of Fig. 3. Figs. in a rabbet k, formed in the rim of the por 4 and 5 are similar fragmentary views de tion A of the casing. This disk is designed signed to illustrate the operation of the in to turn smoothly and steadily on its journal ternal mechanism. Fig. 6 is a view repre and marginal bearings and not too freely or 95 senting a suitable stylus or point for operat loosely. Around its margin, on its upper face, the disk is cut away so as to form a slight 45 ing the numerator or adding-disks. My machine comprises, in a general Way, a band-like recess or rabbet l, (see Fig. 3",) and neat casing recessed to receive the two add on this depressed surface the disk is gradu ing-disks and provide bearings therefor, in ated or provided with one hundred equally IOO which casing below the disks is an escape spaced divisions, which are numbered 00, 01, SO ment device or mechanism whereby the larger 02, consecutively, up to 99. This series of adding-disk, which adds sums up to one hun numbers ac is covered by the dial D; but said dred, is made to impart at each revolution one numbers may be made to appear in succes 2 414,959 sion at an aperture an in said dial by rotating will bring the double-zero mark 00 on the disk E opposite the reading-aperture 17, where Just within the inner margin of the ring it may be seen. He then inserts the stylus dial D and opposite to each number on the in the socket q in disk G and turns said disk disk is a socket in in the disk, to receive a to the right until it is stopped by the stop the disk E. piece ". This will bring the zero-mark () on point fur rotating the disk. In a marginal rabbet in the rim of the lesser disk G. opposite that polition or extension of part a, of the casing is fitted a ring-plate F, the aperture m which is formed in plate F. which has a flattened side that fits up to a This is the preliminary step, and he will now 75 similar flattened side on the ling-dial D, and see at aperture 27, the three zero-marks 000 it may be secured to the casing in the same at the point where the disks are tangent to manner as the dial. In this part C of the cas each other. Now suppose he wishes to add ing is rotatively mounted on a hollow journal up the sums or amounts two hundred and o, similar to journal , the hundreds-adding thirty-six, one htlindred and twenty-seven, and So 5 disk G, the margin of which takes under the fifty-four. He inserts the stylus in the socket plate F and stands in peripheral contact, or in opposite the number 54 on dial D and turns nearly so, with disk E. This tangential al disk E to the right until the stylus strikes rangement of the disks may be seen at the the stop g. The number 054 now appears at aperture n in Fig. 1. This disk Gis divided aperture in. He then inserts the stylus in the around its margin into fifty equally-spaced socket opposite 27 on the dial and again divisions, and is provided with a series ac' of turns the disk until the stylus is stopped by numbers from 0 to 49, consecutively arranged. the piece g. The number now appearing at Opposite to each of the numbers in this se aperture in will be 081, (054 - 27.) He next ries is a socket p, similar to the sockets in in inserts the stylus in the socket in opposite 36 90 disk E. The plate F extends out over these on the dial and turns the disk as before. The sockets p except at some point y, where it is number appearing at aperture in will now be cutaway to an extent sufficient to uncoverten 117,(081-36.) This sum being more than one of said Sockets, and it has graduation-lmalks hundred, the diskE will have made more than cal opposite said sockets numbered from 0 to one revolution, and consequently will have 3 O 9, forming an index, as seen in Fig. 1. The acted through the pallet-lever I on disk G, to disk G has a socket (1, that is not covered by move the latter one-fiftieth of a revolution, the plate F. This socket is arranged oppo and thus bring the hundred-numerall thereon. site the zero-mark on said disk. to the reading-aperture in place of 0. He now On the plate F is an in Wardly-projecting adds the hundreds (in the present case of the OO 3 5 stop-piece r, similar to the stop-piece g on amounts two hundred and thirty-six and one dial D. hundred and twenty-seven) by inserting the On the lower face of the disk G is fixed a stylus in the socket p in disk G that stands toothed wheel H, having fifty equally-spaced opposite the number 1 in the series of index teeth with beveled faces, or as many teeth as numerals (t' along the margin of recess / in there are divisions on the disk G. This wheel plate F and turns disk G to the right as far may be in one piece with the disk if pre as the end margin of said recess y will allow. ferred. The sum at aperture m will now be 217. He The wheel H and disk G are adapted to be then inserts the stylus in the socket p opposite rotated intermittingly, one tooth at a time, by number 2 of the series C. and repeats the op IIO 45 a vibrating pallet-lever I, provided with two eration, when the Sun at aperture 17, will be pallets Sands', the former of which is normally 4.17, which is correct. Any series of sums held in mesh with the teeth of wheel H. or amounts not exceeding hundreds in each by a spring t. The beveled end of pallet S may be thus added up. If there are four holds the Wheel steady, but does not prevent or more figures in the amounts of the column, I 15 the disk G and said wheel from being rotated he adds up the units and tens in the column, by the insertion of a pin or stylus in the sockets sets down with a pencil the units and tens in p or q. Every revolution of disk E causes the sum, and carries the hundreds to the the snail-cam i thereon to draw back a lever hundreds column, which he then adds inde J by pushing outward the tail J of same, and pendently. 55 when the cam passes the tail of the lever the To facilitate the carrying of the hundreds, spring a returns said lever to its normal po I provide the disk E with a series of numer sition. In returning, said lever acts on and als Cli, which may extend to 20 or more, as vibrates the pallet-lever and thus imparts an desired. The numerals of this series are so impulse to disk G. arranged that they stand when the disk is at Having described the construction of the Zero opposite the corresponding index-nu machine, I will now describe the operation of merals on the dial D. For example, after the adding with it. The user inserts a pin or units and tens have been added up, suppose stylus of any kind in the Socket in opposite there are five hundreds to carry. The oper the hand or index-mark 2 on the adding-disk ator sets the disks at first by inserting his E and turns the disk to the right until the stylus, not in the socket in opposite index 2, point is stopped by the stop-piece g. This but in the socket at 5 of the series (t, and O 414,959 3 turns disk E until the stylus stops against pin u' on the tail of the trip. This permits the piece g. Thus he adds up the “carries’ the spring it to retract the lever I to the posi simultaneously with the setting of the disks. tion seen in Fig. 2, whereby the pallet S on One of the more important features of my same engages the tooth next succeeding that 7 O machine is the internal mechanism for im it engaged before and imparts a movement to parting intermittent impulses to the disk G. the wheel H equal in extent to another half In order to enable said disk to be conven tooth. Thus one vibration of the pallet-lever iently rotated independently of disk E, I advances wheel H one tooth. It is not possi construct the pallets of the lever I with rather ble with this escapement for the disk G to be 75 O flat bevels, so that they will not positively moved more or less than the proper distance lock the wheel H. at each impulse. It has been a desideratum in this class of I employ sockets in p, &c., which do not ex machines to obtain a device capable of impart tend through the disk, instead of holes or ing a quick movement to the driven disk and perforations, in order that the pin or point one that Would at the same time move said disk may be conveniently used for rotating the positively to the proper extent and no more. adding-disks without danger of its projecting It was necessary, also, that the device should into the casing in a manner to interfere with allow the driven disk to be independentlyro the internal mechanism. It is convenient, tated. My lever-escapement effects these ob however, to employ a stylus such as that illus jects perfectly. The object in employing a strated in Fig. 6, which consists of a slitted snail-cam, as i, to actuate the operating-lever socket-tube of the proper size to embrace the J is to draw back the pallet-actuating end of end of an ordinary lead-pencil provided with said lever gradually, and also to provide the a point adapted to enter the said Sockets 2 p. disk E with a friction-brake to steady it in By recessing or rabbeting the margin of the its rotation and prevent it from revolving too disk E at l the series of numerals stamped 25 easily. thereon are protected against erasure or ob The lever J is provided at its end with a literation by constant chafing against the peculiarly-constructed L-shaped trip , piv lower face of the dial. oted at its internal angle to the end of lever The apertures h and O in the casing serve J. The tail v' of this trip stands between to lighten it, and also to assist in grasping two guide-pins u and v', fixed in the bottom and holding the machine. They are also plate of casing A, which serve to give the convenient for hanging the machine up on a proper movements to the operating point or nail or hook and for securing it in place On a table. The large journal-bearings pro OO arm v of the trip. 35 Figs. 2, 4, and 5 show the trip in its several vided for the adding-disks and the absence positions and illustrate its action on the of all screws for journals impart great dura rearwardly-projecting part or spurs of the bility to the apparatus, which is designed es pallet-lever I. Fig.2 shows the parts in their pecially for resisting hard and constant usage positions of rest after an impulse has been for a long time. IOS given to disk G and the elements of the actu To increase the durability of the machine, ating mechanism have resumed their normal I make the stop-piece g of steel and let it positions. Starting from this, if the disk E, into the ring-dial D, which will be made of and with it the cami, be rotated to the right softer metal-as brass, for example--So that TO in adding, the Snail-cam Will gradually draw the numerals and graduation-marks may be 45 back the end of the lever J, which bears trip the better stamped thereon. The Stop-piece ', by the action of said cam on the tail J of may be secured in place by solder or the said lever. As the trip moves back the in like. ner guide-pin U will act on or arrest the tail The series of “carry’ numerals a is not an ''...of the trip and throw out the point * of essential feature, and it may be omitted. The II5 the latter until the tail of the lever J rests on series a? on plate F over the disk G may be the highest point of Cami. This position of extended, if desired, beyond nine digits. the parts is seen in Fig. 4. Now, when the The size of disk G relatively to disk E and shoulder f' of the cam passes the tail of lever the number of divisions on its margin are J, spring it instantly throws the other end of not important. I have shown it half as large as disk E. It is necessary, however, 55 the lever outward, the point v of trip strikes or engages the spur son the pallet that the numbers in the hundreds Series iever I and oscillates the latter in such a on the margin of disk G. shall be equal to manner as to cause the pallets' thereon to the number of teeth in wheel II as the ap engage the teeth of wheel H and impart to it paratus is here represented. a movement to the extent of one half-tooth. In assembling the parts of my machine This position of the parts is seen in Fig. 5, the escapement or internal mechanism is wherein the tail v' of the trip v is found in first placed in the cavity of the casing. The contact with guide-pin v'. The final act of adding-disks are then slipped onto the jour the spring at in its action on lever J is to draw als, and, finally, the ling-dial D and ring in the point v' of the trip out of engagement plate F are placed and secured. The dial with the spur of lever I through the action of and ring-plate F serve to hold the disks 414,959 down in place. The disk E is supported at 3. The combination of the units and tens its margin on the rabbeted face or shoulder disk provided with a snail-cam, the hun k of the casing. dreds-disk, the toothed wheel fixed to and Having thus described my invention, I carried by said hundreds-disk, the vibrating pallet-level and its spring, and the interme 5 claim 1. The combination of the rotatively-mount ate lever and its spring, the tail of the lat ed units and tens disk, the rotatively-mount tel lever bearing on Said snail-calm, Substan ed hundreds-disk, the toothed. Wheel fixed tially as described. to the latter disk, the vibrating pallet-lever O 4. The combination of the units and tens 35 having one of its pallets held in engagement disk provided with a calm, the hundreds with the teeth of Said wheel by a Spring, and disk, the toothed wheel fixed to and carried the said spring whereby said wheel may be by Said hundreds-disk, the vibrating pallet rotated continuously and independently by lever and its spring, arranged as shown, the the yielding of Said spring, as set forth. intermediate lever and its spring, the L 2. The combination of the units and tens shaped trip carried by Said intermediate le disk, the hundreds-disk, the toothed wheel ver on its operating end, and the two guide fixed to the hundreds-disk, the pallet-lever, pins for the tail of said trip, all arranged to one of the pallets of which is held normally operate Substantially as Set forth. in engagement with the teeth of said wheel in witness whereof I have hereunto signed 45 by a spring, the Said Spring, the intermedi my name in the presence of two subscribing ate ever for actuating said pallet-lever, its Witnesses. spling, and means, Substantially as described, CIIAS. HENRY WEBB. carried by the units and tens disk, for actu Witnesses: atting said intermediate lever once in each revolution of said disk, substantially as de IIENRY CONNETT, Scribed. J. D. CAPLINGER.