Historical Document · 1907
Bonham's stylus dial adder, filed 20 November 1905 and granted 5 March 1907: a row of dials with two reversed rings of numerals for adding and subtracting. The Lightning's direct ancestor.
No. 845,747. PATENTED MAR. 5, 1907. W, IR, BONHAM, CALCULATING MACHINE, APPLICATION FILED NOW, 20, 905 ? <z>>>>æ•>>>>> UNITED STATE PATENT OFFICE. ???? WALTERFFTHS RICHARD BONHA, OF TO A. J. SCRA i. , GF LAKE GENEWA, WISCONSIN. ?o.845,747. Application filed November 20, 1905, Serial No. 288,118, Patented March 5, 1907. To all typhi, ???, i?, ???, (x,y concerºy? : 6 7, which transmit, a tenth of a rotation to Be it known that I, WALTER RICHARD each of the indicator-disks on the left from iONHAM, a citizen of the United States, re siding at Chicago, in the county of Cook and One compigte rotation of the indicator-disks On the right, as is common in this art, and 5 Si Rite of Illinois, have invented certain new these gears or carriers 67 are also preferably and useful Improvements in Calculating arranged between the plates 12, and the two siachines, of which the following is a full, plates are secured together and the indicator clear, and exact specification. carriers pivoted or journaled This invention relates to calculating-ma membersbyand any suitable means, such as pins o chines, and more particularly to the class de thereon 8, passing through them. These signed for addition and subtraction; and or bolts or pins 8 are provided with enlarged it has for its primary object to provide an bolts central portions 9 to form shoulders against improved construction of calculating-ma which plates 1 and 2 rest and serve as a chines of this character which shall be simple means the for holding said plates spaced apart. TS both in mechanism and operation and of in The periphery of the top plate 2 is preferably expensive construction and especially adapt. turned down against the face of the bottom 7 ? ed as a pocket-machine. i, as at 10, to close the space between A further object is to provide an improved, plateplates and form a housing for the disks simple, and efficient means for preventing the carrying-wheels. Any number of these 2 o the carrier from moving accidentally beyond and bolts or pins may be used as desired and are the position to which it is positively moved of such a size as to hold the plates 1 and 2 a. by one of the indicator members. sufficient distance apart to prevent them A further object is to provide an improved from bearing too severely against the gears means whereby the indicator members may indicators. 5 be given a slight retrograde movement upon andThe top plate 2 is provided with apertures the completion of its forward rotation. one opposite each of the indicator-disks 3, To these ends and ühe acéemplishment of 4,11,and 5. These indicator members or disks other new, and useful objects, as will appear, are or may be duplicates of each other, and the invention consists in certain features of the description of one will apply equally as 3o novelty in the construction aid arrange well to the others. They are pivoted to the ment of the several parts ere 3.fter more back plate by means of iournals 12, prefer fully described and claimed, and illustrated abiy formed by a struck-up por tion of the in the accompanying drawings, illustrating body thereof, and said struck-up portion en an example of the invention, and in which gages a suitable aperture in the plate . Figure 1 is a plan view of this improved 35 Aln important E. of my invention re machine with a part of the top plate broken sides in the arrangement of the numbers or away. Fig. 2 is a sectional view on the line other characters of numerical value, and it 90 22 of Fig. 1. Fig. 3 is an irregular section consists, in the employment of two sets of on line 33 of Fig. 1. Fig. 4 is a section on to line 4 4 of Fig. i. Fig. 5 is an eniarged per such numbers or characters arranged in arithmetical progression from one to zero and spective view of the edge of one of the car reversed with respect to each other, so that riers. Fig. 6 is an enlarged detail perspec one series or set progresses in one direction tive view of the operating end of the retain and the other series or set in an opposite di ing-pawl for the carriers, and Fig. 7 is an en rection. These two sets of numbers or chair 5 larged detail section on line 7 7 oi Fig.1. acters are for each of the indicators, She numeral 1 is a base-plate or back, and whatever provided form the latter may have, and 1 ? ? 2 is a face-plate, and between these two piates when such indicators have, in the example Ire arranged rotary indicating members or of my invention shown in theasdrawings, a flat disks 3 4 5, any desired number of which disk-like form the numbers are arranged in c. being einpioyed, according to the capacity of circuiar concentric series. The set of said the machine desired, and which sta.ind, re numbers arranged in arithmetical progres spectively, for the units, tens, and hundreds sion from right to ieft is arranged upon the colarians, and located between these indica outerfsce of the piate around the aperture il or members or disks are gears or carriers therein, while the other set, or the set which 845,747 23, which is located behind the lip of progresses in the opposite direction, is ar |jection 22. This projection 23 stands beyond ranged upon the upper face of the base-plate finger the periphery of the carrier-disk. and di i within and concentric with the first set and rectly in the path of the movement of the ex around the journal of each of the indicators tended 17 of the indicator-disk. One 7? 3, 4, and 5. These figures may be placed edge of finger the projection is inclined or beveled, thereon either by 'stamping, printing, or in as at 24, and the inclined portion 18 of the any other manner desired. extended tooth 17 will contact therewith C Each of the indicator-disks is provided during its course of movement, causing the With a plurality of tapering apertures 13, one same to be raised to permit the tooth 17 to 75. of which is elongated, as indicated at 14, and pass thereunder and at the same time raise extends inward toward the journal 12 a suf the lip or projection two of the de ficient distance as to uncover and expose one pending teeth 15 andbetween into the path of the of the numerals of the inner circle carried by the base-plate 1. The tapered portions of movement of the advancing tooth, which contacts therewith and is held in this posi these apertures are arranged adjacent the tion until the projectingliptooth passes from peripheries of the disks. Carrier-disks 6 are beneath orportion 23, af arranged between each two of the indicator ter whichthethedepending stop or lock will spring down disks 3, 4, and 5 and are provided with pe the base-plate 1, carrying the radial ripheral depending teeth or lugs 15, properly ageinst lip 22 with it and out of the path spaced for intermeshing with radial teeth 16, projecting the movement of the depending teeth 15, carried by the peripheries of the indicator of disks. One of the radial teeth 16 of each of an aperture 25 being provided in the base 1 to permit a proper movement of the these indicator-disks, excepting the last one plate Hip 22. . . . of the series, is somewhat longer than the re "?lin order to prevent the. . . .indicator-disks 90 25 maining teeth, as indicated at 17, and is pro from being turned in the wrong direction, vided with a beveled or inclined portion 18, there is provided a retaining-pawl 26, having and this tooth is adapted to engage with the an arm engaging the pins 20, and said paw depending lugs or teeth 15 on the carrier g portion with a lipfrom or ?? disk adjacent thereto, and thereby impart a is27,provided preferably struck the metal thereof. 95 tenth of a rotation to the next one of the indi The lip or portion 27 is adapted to stand be cator-disks in the series by means of the en tween the redially-projecting teeth 16 of the gagement of the radial teeth 16 between the indicator-disks and is adapted to be reised depending teeth 15. Thus it will be seen by said teeth when properly rotated and to OO that for each complete rotation of the units spring between the teeth to prevent a back 35 disk 3 the tens-disk 4 will receive one-tenth ward movement. Suitable pressure may be . of a rotation, and the hundreds-disk 5 will given to this pawl by means of a spring 28, receive a tenth of a revolution for each com engaging the pins 20. plete rotation of the tens-disk 4, and so on loosely The face-plate 2 is provided with suitable ..., throughout the entire series. portions 29 adjacent the free end ??? With this construction and arrangement struck-up permit the proper of the stop or lock 19 to of the disks it will be seen that should the in of the same. dicator-disk be given a rapid rotation the movement The edges of the apertures 11 in the face momentum given to the carrier-disk would plate 2o are provided with stops 30, so ar tend to carry the same forward to an im ranged that if a pencil or other implement be I I O. 45 proper position after the extended tooth or inserted in any one of the series of apertures projection 17 passes out of engagement with 13 inright the indicator-disks and moved toward the depending tooth 15. In order to over the the motion will be arrested by the come this tendency aird to insure a proper pencil coming against the top side of the stop . movement of the carrier-disks, there is pro only one figure of the inner series being II 5 vided a stop or lock 19 in the shape of a 30, spring-pawl, preferably of the form shown, visible through the elongated aperture 14 of on end of which is provided with apertures In order to impart a slight retrograde adapted to receive &I.d be held in position of the indicator-disks 3, 4, and 5 against the base-plate 1 by means of the movement to insure the proper engagement of the lipor. pins or lugs 20. The free end thereof pref projection 27 of the retaining-pawl 26 be erably follows the contour of the carrier tween the two teeth 16, there is provided a disk, and its extremity is provided with a de slot 31 in the face-plate 2 adjacent the stop pending portion 21, having a radially-pro 30 and the edge of the apertures 11. This 125 jecting lip or finger 22, Said radial lip or slotis provided with a rearward-inclined por finger 22 extends under the periphery of the tion 31, the highest point of which is located carrier-disk, normally below the extremity at the correct stopping-point for the indi of the depending teeth 15, and is adapted to cator-disks. The lowest point of the slot be raised between the teeth in the naniel 3 is so located that the disk may be noved hereinafter set forth. The stop or lock 19 is slightly, beyond its proper stopping-point, so 65 also provided with a depending portion or pro and indicator-disks. w 1 845,747 ?: 8 that upon its backward movement the lip or ! in the disk 4 in connection therewith the sum projection 27 of the retaining-pawl will posi 18’ appears. Thus each time the unit tively spring into the space between two of disk 3 makes a complete rotation the tens the teeth 16 of the indicator-disks, so that disk 4 makes a partial or tenth revolution, the adjacent tooth will engage therewith. and each time the tens-disk 4 makes a com Thus it will be seen that if an implement is plete revolution a partial or tenth revolution inserted in any one of the apertures 13 and is imparted to the hundreds-disk 5 through the disk rotated the force will be exerted to the intermediate carrier-disk 7 and finger 7. ward the periphery of the disks and the im o plement will travel around the edge of the During each movement of the indicator disksthethelocking carriersmember are locked andthereleased apertures 11 in the face-plate 2, carrying with by 19 and disks 75 it the disk until the implement strikes the 3, 4, and 5 properly positioned in the man stop 30, when the outward strain will cause ner already set forth. Should it be de the implement to move into the slot 31 and sired subtract a given number from travel to the lowest point 31 therein, where the sumto thus added up or from any other So it will be suddenly deflected into the inclined amount, the disks 3 and 4, in which the portion 31, thereby causing the disk to be sum appears in the aperture 14, and also the turned slightly backward, so that the retain disk 5, if the sum be large enough to extend ing-dog will properly engage the teeth 16, to this disk, are shifted until the apertures 14 2 ? the tapering portion of the apertures 13 co stand opposite the numbers in the outer se operating with the slot 31 to accomplish this ries. Thus if the sum appearing in the ap S5 movement. This arrangement is to facili ertures 14 be the number just added, “18,' tate the operation of the machine and dis disk 3 would be turned until the aperture penses with the necessity of the operator the 14 is opposite the number '8' in the outer 25 stopping to examine the same to see if the series, and the disk 4 should be turned until exposing slot or aperture 14 is correctly po the aperture 14 therein stands opposite the sitioned and the indicator-disks properly number '1' in the outer series. The pencil locked. is then placed in the aperture opposite the In the operation of this machine it is to be number in the outside series which is to be understood that the inner series of numbers subtracted. Should the number be nine, for are used for addition and the outer series for example, the pencil would be placed in the subtraction, and the machine is operated in aperture opposite '9' and the disk rotated the following manner: All of the disks or in toward the right, as before, until arrested by dicators are so set that the cipher of each of the stop 30, whereupon the aperture 14 35 the inner series will be exposed through the would be opposite the number '9' of the out 1 ? ? aperture 14. . A number may be added by side series, and the corresponding aperture 14 placing the point of a pencil in that one of of the disk 4 would come opposite the cipher the apertures 13 which is directly opposite in the outside series, it being understood that the number in the outer series which is de when subtracting the outer series are read sired and the disk rotated to the right until and the number taken is always the one op | OS arrested by the stop 30, whereupon the de posite to which the aperture 14 stands. Af sired number will be exposed through the ter thus subtracting, if it should be desired aperture 14. For example, starting with to again add to the remainder it would be the disks arranged as just mentioned and it necessary to again shift the disks. until the 45 is desired to add nine, the pencil is inserted remainder appears in the aperture 14, where ? ? ? in the aperture opposite the number '9' of upon the addition may be performed, as just the outer series and the disk rotated until described, by placing the pencil in the aper its movement is arrested by the stop 30, ture opposite the number in the outer series whereupon '9' will appear in the aperture to be added and then rotating the disk until 14. . Should it be desired to add nine to this arrested by the projection 30. result, the same operation is repeated; but Theoperation has been described in rela 1 5. inasmuch as the projecting tooth 17 at the tion to only two of the disks; but it is to be beginning of the second operation would be understood that any number of disks con just back of one of the teeth 15 of the car stituting the machine may be operated in the 55 rier-disk the first tenth of the revolution of I 2? With a machine thus constructed it will be the second operation would cause the tooth 17 to rotate the carrier 6 a tenth of a revolu seen that the mechanism is simple in con tion, and thereby impart a tenth of a revo struction and operation and may be made jn lution to the disk 4, bringing the aperture 14 a thin flat form suitable for carrying in the therein opposite the numer '1' in the in. pocket, and the disks and also the carriers are 25 ner series of numers, while the disk 3 would facsimiles in size and shape, and hence may continue to rotate until arrested by the stop be produced from two disks, one for the disks 30, whereupon the number 'S' would ap and one for the carriers, it being unnecessary pear in the aperture 14 in the disk 3, and by to increase their diameter or the length of the 65 reading the number '1' in the aperture 14 teeth 15 as the values of the disks progress. Sanne manner. . . V 3. 845,74? teeth and apertures formed fiaving thus fully described the construc having peripheral and constituting indicating-aper tion and operation of the machine, what is therein, tures, characters of diferent numerical val claimed as new, and desired to secure by Let lies arranged in a circular series opposite said ters Patent, is-V apertures respectively, a carrier-gear. having 1. In a calculating-machine, the combina teeth meshing 5 with the said teeth on one of tion of two sets of digits or characters of dif. said rotary members imparting motion to ferent numerical values bearing a fixed rela the latter, fingers onforsaid rotary indicators tion to each other and being reversely ar projecting beyond tile teeth the gainged, and means whereby the numbers in teeth on said gear being arrangedthereof, within the 75 both sets are indicated and all the numbers in of the said finger on one of said indi One set are simultaneously visible and those Sweep Cato's, a second gear having teeth arranged of the other set are only progressively visible. witi in the sweep of tile latter said finger, and 2. In a calculating-machine, the combina a tiird rotary member having tion of two sets of characters of different nu teetih engaging theindicator teeti of said second gear. merical values progressing arithmetically re S. In a calculating-maciline having a path versely of each other, one set being fixed of movement for an operating means, the with relation to the other and permanently combination of a plurality of rotary indica visible, and a movable indicator whereby the tors, a carrier for imparting the movement of characters of the other set are only pro one of said indicators to the other, a stop gressively visible, and the characters in either across said path of movement, and means ad set may be indicated. tile stop for calising a retrograde mo 3. ?n. a. calculating-machine, the combina jacent tion of the indicators. tion of two sets of characters of different nu 9. In a calculating-machine having a path merical values progressing arithmetically re of movement for an operating means, the 2. 5 versely of each other, and an indicator hav combination of rotary indicator, a retain ing aperitures corresponding in number to the ing-pawl, meansacarried by the indicator and characters of one set, one of said apertures witin which tine pawl coöperates, a stopar being elongated and through which the char ranged in the path of said movement so 95 acters of o other set are progressively visi disposed as to cause the indicator to and travel ble. beyond the point at which the pawl 4. in a calculating-machine, the combina slightly engages of the coöperating means, and tion of two sets of characters of different nu means foronetransmitting a retrograde motion merical values progressing arithmetically re to the indicator for seating the pawl. versely of each other, and a movable indica 10. In a calculating-machine inaving a path OC QI having apertures corresponding in num-, 35 movement for an operating means, the ber to the characters of one set, one of said of combination a rotary indicator, provided apertures being arranged to progressively ex with peripineralof teeth, a retaining-pawl adapt pose the characters of the other set. ed to engage the teeth, a stop arranged with 5. In a calculating-machine, the combina in said patih of movement, Said stop being So tion of two sets of characters of different nu disposed as to cause the teeth to be moved inerical values progressing arithmetically re slightly beyond the point at Winich the pawl yersely of each other in concentric circles, an engages therewitin, and having a slot adja indicator arranged over one set of said char cent thereto into winich the operating meals acters and having an aperture through which deflected to cause the teetin to be moved said characters are successively visible, and a isbackward against the pawl. series of additional apertures, one of said aper 11. In a calculating-machine having tures being disposed adjacent each of the of movement for an operating means,a path the first set of characters. combination of a rotary indicator provided 6. In a calculating-machine, the combina with a series of apertures and peripheral 5 Cò tion of two sets of characters of different nu teetin, a retaining-pawl adapted to engage linerical values progressing arithmetically in teetin, a stop witiin said path of move opposite direction and in concentric circles, tie ment to cause one of the teeth to one set being fixed with relation to the other, travel disposed slightly the poilt of its en a rotary indicator arranged over one set of gagement with beyond the pawl, and a rearwardly 5 5 said characters and having an aperture disposed slot adjacent tile stop and into through which the characters of said set are tie operating means is deflected, the successively visible, a series of additional ap wendnieofin said slot being so disposed as to trans ertures adjacent the characters of the other mit a retrograde to the disk to I set, and a stop projecting across the line of cause the tooth tomovement engage the pawl. \. the said circular series of apertures for ar 12. In a calculating-machine, the combi resting the movement of the turning imple nation of a plurality of rotary indicators, a ment when placed in cine of the said series of carrier for riparting the movement of one of apertures. said indicators to the other, a stop normally 7. In a calculating-machine, the combina out of the plane of movement of the carrier, tion of two rotary indicating members each 845,747 and means for engaging and moving said plurality of depending teeth, a stop provided stop onto engagement the indicator isroperat with the earrier when with a depending portion and a radial ex l3. In a calculating-machine, the combi tending lip, and a projection carried by the indicator adapted to rotate the carrier and 2 ? riation of a plurality of rotary indicators, a engage the projection on the stop for moving carrier for imparting the movement of one of the lip into the path of movement of the car said indicators to the other, a stop normally out of the plane of movement of the carrier, rier-teeth. .???.. and a projection carried by the indicator in testimony whereof I have signed my to this specification, in the presence of adapted to engage the carrier and stop to ro name two subscribing witnesses, on this 31st day of 25 tate the former and to move the latter into October, A. D. 1905. engsgement therewith. - 14. In a calculating-machine, the combi WALTER, RICHARD BONHAM. of a plurality of rotary indicators, a Witnesses: t5. nation carrier for imparting motion from one of said FRANCIs A. HoPKINs, indicators to the other, and provided with a J. H. JocHT"M, Jr.