US1908157A - Computing machine - Google Patents

Description

is L. WALSQE 1,908,15@

COMPUTING MACHINE Filed Sept. ILO;7 1950 2 Sheets-Sheet l May 9, 1933.

l l l l l 1 1 1 i l lo n) 4) ATTORNEY May'9, 1933. s. n... WALsoE CQMPUTING MACHINE Filed Sept. lO, 1930 f2 Sheets-Shea?, 2

INVENTOR WITNESSES ATTORNEY UNITED STATES 'PATENT ortica SIGUBiD' I. WALSO, 0F SPRNGDALE, CNNECTIGUT, .ASSIGNOR T0 REMINGTON TYPEWBITER COMPANY, F ILION, NEW YORK, A CORPORATION OF NEW YORK COMPUTING MACHINE Application iled September "l0, 193?. Serial No. 480,886.

`My invention relates to computing maiZer is o-set to one side of the center of the chines and more particularly to means wheremachine, and due to its position and the fact by the numerals on the register wheelsmay that the numerals on the register wheels of be more readily seen by the operator. the cross totalizer are necessarily small by One of the main objects of my invention is reason of the compact construction of the 55 to provide means for attaining the ends remechanism, such numerals cannot always be ferred to without modifying in any manner readily observed by the. operator. This is the. exist-ing structuralfeatures of the comespecially true when an algebraic totalizer v puting machine, and which means are in the is employed. ln the present instance l have 1 nature of an attachment that can be readily associated the devices of invention with placed on the machine at a companitivelyv this cross totalizer, although the invention small cost. is not restricted in this connection, and may To the above and other ends which will be employed wherever found available in hereinafter appear my invention consists in computing and like machines.

the features of construction, arrangements of ln` the accompanying drawings l have 35 parts and combinations of devices set forth shown only so much of the Remington acin the vfollowing description and particularly counting machine as is necessary to illustrate pginted out in the appended claims, my invention in its embodiment therein, it

" ln the accompanying drawings, wherein being understood that all of the structural p29 like reference characters designate. corre- `features of this machine are of the usual conn sponding parts in the different views: struction and are not modified by the embodi- Fig. 1 is a fragmentary, full-sized, front mentof the features of the present invention view showing a portion of a combined typein the machine. y writing and computing machine equipped Referring more particularly to Fig. 2, it with the attachment of my invention. will be seen that vertical totalizers 1 are car- 75 Fig. 2 is a detail, fore land aft, vertical, ried in the usual manner by a supporting bar sectional view of the same, the parts being 2, connected to arms 3 carried by the typeshown full-sized. writer carriage Il.

Fig. 3 is an enlarged, detail, diagrammatic A cross-truck 5 carries wheels 6 by which View of some of the parts illustrated in Fig. 2. it is mounted to travel along fixed guide rails 30 Fig. 4 is an enlarged, detail, fragmentary, 'I supported by the main frame of the ma front view of some of the parts represented in chine. A cross totalizer 8 is carried by the Fig, 3. `truck l and travels therewith in the usual Fig. 5 is an enlarged, detail, perspective manner. ylfhe usual pick-up beam 9 is con# view of one of the brackets for holding the nected to the cross-truck 5 and is successive- 85 lenses in place. ly engaged by pickup lugs 10 on the vertical I have shown my invention applied'in the totalizers 1 to move the cross-truck, and the present instance to a Remington accounting cross totalizer 8 carried thereby, in unison machine, which isa .combined typewriting with the typewriter carriage. The usual lo and computing machine of the same general spring means (not shown) are employed to character as that disclosed in the patent to return the cross-truck to the right independwWahl, No. 1,270,471, dated June 25, 1918, eritly of the typewriter carriage when the although the invention is notv restrictedto vertical totalizer to which the crosstruck is use in said machine. connected passes out ofthe computing zone.

4" The machine in question includes a cross- 4ll of the features as thus far described 95 foot totalizer carried by a cross-truck that is constitute parts of the usual equipment of at times picked up by andtravels in unison the Remington accounting machine of the with the typewriter carriage and has a return y type illustrated in said TWahl patent and furr" movement to normal position independentl ther detailed description thereof is deemed "0 of the typewriter carriage. This cross totalunnecessary.- 1

`eral character as that sometimes emplod in the Remington accounting machine. is is a double, algebraic totalizer employing two ma sets of register wheels 11 and 12 arranged one set above the other, as shown in Fi 3. Each register wheel has the usual numera s 13 (Fig. 4L around the periphery thereof, the numera on the wheels of one set being arranged in an order the reverse of that on the wheels of the other set. A totalizer shell or housing 14 encloses the cross totalizer, including the re 'ster wheels 11 and 12 thereof, and is provi ed with the usual slots or sight openings 15 and 16, the former exposing an aligned set of numerals 13 on the lower set of register wheels, and the sight opening 16 exposing a set of aligned numerals 13 on the upper set of re 'ster wheels. y

uch construction is sometimes provided with shutters 17 and 18 so operativel con nected and controlled that when the s utter 18 is removed from the sight opening 16 to expose the numerals on the upper register wheels 12, the lower shutter 17 will close its opening 15 so that the numerals on the lower set of register wheels 11 cannot be seen, and vice versa. In some instances, however, no shutters are employed or deemed necessary.

As hereinbefore pointed out it is difficult atl times to see the exposed numerals on the register wheels 11 and 12 by reason of the fact that they are necessarily small, and the cross-foot totalizer is off-set to one side of the machine.

It is the purpose of the present invention to overcome this difficulty by the provision of the following means.

An outer housing 19 is fixedly, though removably, secured to the frame of the machine by means of a screw 20, usually emplo ed 1n the machine for another purpose, andY by screws 21. It will be observed that this housing 19 encloses the cross totalizer 8 and, as shown in Fig. 2, terminates at its upper rear edge 22 in front of the pick-up beam 9 and the bracket arm 23 by which said pickup beam is connected to the cross-truck. B

19 offers no obstruction to the travel of the cross totalizer 8, its truck 5 and pick-up beam 9, etc.

The outer housing 19 is provided with two elongated si ht openings 24 and 25 arranged one above t e other to accord with the arrangement of the sight openings 15 and 16 in the totalizer shell, and arranged in the line of the operators vision of the sight openings 15 and 16, as indicated by the arrows y, in Fig. 2. However, each of the sight openings 24 and 25 is wider and longer than the associated sight opening 15 or 16. This en-k largement of the sight openings 24 and 25 is done for a twofold purpose. First the width may of each si ht opening 24 and 25 is increased in order t at the cxzposed numerals 13 on the re r wheels, when viewed through a magnisitg lass or lens as indicated 1n Fi 4,

be c early observed in their enlar e u an down dimensions. The lengthwise d1- mension of each sight opening 24 and 25 is increased in order that the numerals 13 may be readily seen therethrough whatever may be the position of the cross totalizer in its traveling movement.

vOpposite each sight opening 24 and 25 is a magnifyin glass or lens 26 or 27. Each lens fills its sig t opening and the shape of both vare substantially the same, so that a description of one applies to the other. Each lens has a convex outer or forward face 28 seated from the rear in its sight opening. The rear face 29 of each lens is substantially flat, whereas its u per edge 30 and its lower edge 31 are bevele in opposite directions for reasons which will presently appear.

Both of the lenses 26 and 27 are contained within the outer housing 19 and project invwardly from the inner face thereof, which may be nickel-plated to provide a reflecting.

surface. The lenses are held in place by anlar sheet metal brackets, each of which is esignated as a whole by the reference numeral 32, and one of which is shown detached in Fig. 5. The foot piece 33 of each bracket e soldered or otherwise secured to the inner facel of the housing 19. An extension 34 extends beneath and underlies the ends of both of the lenses 26 and 27, and said extension is bent forward at its ends 35 to embrace the lenses and hold them in contact with each other.

Contained within the housing 19 is an electric bulb or lamp 36, removably secured in a lamp socket 37 fixedly secured by any suitable means (not shown) in the housing 19. This lamp socket is connected with a suitable plug by which connection with the power line may be readily established. The only available space within the housing 19 where an effective electric light bulb may be placed is below the cross totalizer, and where the direct rays y of light from the lamp will not illuminate the .reason of thls construction the fixed housing numerals 13 exposed at the sight openings 15 and 16. It therefore becomes necessary to obtain an illumination of such numerals bv reflected light rays. This I obtain in the present instance in the following manner. Contained within the housing 19 beneath the electric light bulb 36, and supported by the lamp socket 37, is a curved refiector 38 that extends throughout the length of the bulb and reflects the light rays upwardly through lenses 26 and 27 to the inner fiat faces 29 thereof, to the beveled edge 30 of the lower lens 26 and to the intermediate space between said lenses and the front of the cross totalizer, as indicated in part diagrammatically by the doted lines a, b, c, d, and e in Fig. 3. Ar-

llO

Alines a. and b) tothe sight openings 15 and 16 -in the totalizer 8, and more particularly to the latter opening `which is the most diflicult to illuminate from the lamp 36. I have not attempted to diagram all of the light rays that will be reflected to the upper sight opening 16, it being sufficient to indicate that light 16 rays between the lines a and b reflected from the. member 39 will illuminate the upper sight opening 16, whereasthe light rays between the lines c, Z reflected from the rear flat faces of the lenses 26 and 27 also will illuminate the numerals at the upper sight opening 16.

It is not practicable to arrange a lamp out in front of the dials so as to illuminate them by direct light and the lamp has accordingly been disposed in the space available for it, namely, below and a very little in front of the vertical totalizers. The device works on the principle that the light for illuminating 'the dials is deflected toward the dials by the lenses themselves which are so designed in prismatic form as to have that effect. rlfhe flat surfaces of these lenses are polished so that when light strikes them part of it is reflected back while part of it passes on through the surface. Thus a ray of light from the filament striking the surface 3l of the lower lens 26 will be refracted into a direction somewhere near parallel to the rear surface 29 of the lens. When this light strikes the opposite surface 30 some of it is transmitted on to the upper lens 27 and some of it is reflected back by internal reflection. A similar thing happens when the light strikes the lower surface 3l of the upper lens 27. This light is, however, twice refracted toward the rear and enters the lens 27 in a more rearwardly inclined direction than that which entered the lens 26. Light passing on through the upper surface 30 would perform no useful function and the mirror 39 is therefore provided to reflect all of it back. A few rays have been drawn in Fig. 3 to illustrate the general principles of the device. Thus the ray a striking the surface 31 near its forward edge is refracted as shown and, of

course, part of itu is reflected back from the upper surface 26. The part of it that goes on into and through the upper lens is traced and it will be perceived that it is reflected back from 30 and 39 and reaches about the upper edge of the sight opening 16. A ray striking the lower surface 31 a little to the rear of this on-e would enter the sight opening The ray e is traced as itis reflected back from the upper surface 30 of the lower lens 26 to where it enters the sight opening 15.

Of course, part of this ray would continue on into the upper lens.

The ray b entering the lower lens near the rear thereof is traced as first refractedrearward at the surface 31, again refracted rearward at the surface 30 of the lower lens, and again refracted rearwardv at the surface 31 of the upper lens until itstrikes the rear surface lof the upper lens, from where it is reflected to the upper surface 30 andthe mirror 39 and comes back in a direction approximately toward the upper sight opening The rays c and d are traced as reflected from the rear surfaces of the lenses. Neither of these enters either of the sight openings.

Some of the light is reflected from the rear surface of the plate 19 and some of this would enter the lens 26.

In addition to the light which is actually reflected in straight rays into the sight openings it will be perceived that the whole system is full of criss-cross rays of light reflected and refracted from the different surfaces. 'lhis would result in a certain amount of diffused light which also would enter the sight openings and assist in illuminating the dials.

In the particular disposition of the parts shown, inorder to direct the rays of light as desired the angle between the lower surface 31 of one of the lenses and the rear surface 29 is somewhat sharper than that between the surface 29 and the upper surface 30. These angles would, of course, in different specific instances of the invention, be worked out in each case according to the position of the source of light and that of the object to be illuminated.

Where two lenses are employed in the situ ation shown in the drawing it is advantageous that they both be made alike where that is possible, and they are so shown in the present instance, the reason being in order to avoid confusion in assembling the device which might result from the two lenses being of different shapes. It will be noted that the source of light is back of the general plane in which the lenses are arranged which general plane is about parallel to the inclined part of the plate 19. l

It will be perceived that as far as most of the illumination is concerned these lenses act rather as prisms, the convex outer surfaces having little or no function in illuminating the dials. In case the magnification was not desired therefore, the dials could be illuminated by prismatic hars of glass all of whose surfaces were plane.

In practice I have found that due to the construction and arrangement of the parts, and to the factors of direct reflection, transmitted reflection, refractive index in the lenses themselves, etc., I am enabled to obtain the sight openings or 16.-v

" ter and havin The character of each lens 26, 27, with its surface 28 made as a section of a cylinder, is

such that exposed numerals seen therethrough will not be magnified transversely, but will be ma ified up and down. increasing the height of t e numerals as I have attempted to indicate in Fig. 4. This, itis found, gives most satisfactory kvresults and avoids confusion. 7

All of the'parts of my attachment are carried by the housing 19 and this may be readily applied lto the machine by the screws 20 and 21 without in any manner interfering with the operation of the machine.

It will be seen therefore that I have provided a sim le, comparatively inexpensive and highly e cient attachment for attaining the ends hereinbefore pointed out.

What I claim as new and desire to secure by Letters Patent is:

1. The combination of an accountin machine register having an enclosin shel with the usual `sight opening therein through which numerals on the register wheels are ex posed, an outer housing enclosing said regisa sight opening through which expose numerals on 4the re ister wheels may be seen, a magnifying glass 1n the v sight opening of the housing, an electric light bulb contained within said housing below said re ister, and a reflector beneath said bulb for refigecting the light upwardly between the shell and outer housing to illuminate the exposed numerals on the register wheels that may be seen through said magnifying glass. 2. The combination of a traveling totalizer.

having an enclosing shell with the usual sight opening therein through which numerals on the register wheelsare exposed, an outer fixed housing enclosing said totalizer and in which the totalizer is adapted to travel, said fixed housing having a sight opening through which exposed numerals on the register l :wheels may be seen in any position of travel of the traveling totalizer, a magnifying glass,l

in the sight opening of the housing, and illuminating means contained within the housing for illuminating the exposed numerals on'the register wheels which may be seen through said magnifying glass.

3. The combination'of a traveling totalizer having an enclosing shellfwith the usual sight opening therein through which numerals on the register wheels are exposed and an outer' fixed housing enclosing said totalizer and in which the totalizer is adapted to travel, said fixed housing having a sight opening through which exposed numerals on the register wheels may be seen in any positionof travel of the traveling totalizer', a magnifying glass in the Wsight opening of the fixed housing, an electric light bulb contained within said housseen through said magnifying glass.

4. The combination of an accounti maf chine register having an enclosing sh with -the usual sight opening therein through which numerals on the register wheels are exposed, an outer housing enclosing said re f ister and having a sight opening throug which exposed numerals on -the re wheels may be seen, a magnifying glass in the l sight opening of the housing, an electric 1i ht bulb contained within said housin ow said register, a reflector beneath said bulb for reflecting the ,light upwardly between the shell and outer housing to illuminate the exposed numerals on the register wheels that may be seen through said magnifying glass and a second reflector contained within sai housing and arranged above said register to further aid in reflecting light to illuminate the exposed numerals on the register wheels. 5. The combination with an accounting machine having a` totalizer with a double set of register wheels and a shell therefor havin two sight openings therein, one for each set 0 register wheels, of `a housin which encloses said totalizer and has two sig t openings one for each of the sight openings the tota izer shell, a magnifying glass in each of the sight f los l' the sight openings in the totalizer shell' and v through which exposed numerals on either set of register wheels may beseen in any position of travel of the, totalizer, a magnifying glass in each of the sight openingsin the housing, and illuminating means contained within said housing andl illuminating the numerals exposed at either of the sight openings in the totalizer shell.

7'. The combination with an accounting machine having a totalizer with a double set ofV register wheels arranged one set above the other, and a shell therefor having two corre` spondingly arranged sight openings therein,

one for each set of re ister wheels,lof a housing which encloses said totalizer and has two sightopenings, one for each of the sight open- -ings in the totalizer shell, a magnifying glass in each of the sight openings Iin the housing, and illuminating means contained within said I. housing and illuminating the numerals exmeans may pass from below through the magnif 'ng glasses and be lreflected tothe upper sig t opening in the shell.

8. The comb'nation with an accounting machine having a traveling totalizer with a double set of register. Wheels arranged one set i above the other-- and a shell therefor having two correspondingly arranged sight openings therein,'one foreach set of register wheels, of a fixed housing which encloses said totalizer and in which the totalizer is adapted to travel, said housing having two sight openings, one for each of the sight openings in the totalizer shell and through which exposed numerals on either set of register wheels may be seen in any osition of travel of the totalizer, a magniying glass in each of rthe sight openings in the housing, and illuminating means contained within said housing and illuminating the numerals exposed `at'either of the sight openings in the totalizer shell, themagnifying glasses being contained within said housing in such position that light rays from the illuminating means may pass from below through magnifying glasses and be reflected to the upper sight opening in the shell. 9 The combination with a totalizer having I l a shell having the usual sight opening therein closing said totalizer and having a sight openn lto expose numerals on register wheels contained within said totalizer, of a housing enf ing therein, a magnifying glass at said sight opening in the housing, said magnifying glass having a convex outer or front surface, oppositely beveled top and bottom edges and a substantially ilat rear surface, and illuminating means contained within said housing and illuminating exposed numerals on the register wheels that maybe seen through said magnifying glass.

10. rEhe-combination of a totalizer having two sets of register wheels, one .set arranged above the other, a shell for said totalizer having correspondingly arranged sight openings therein to expose-numerals on said register wheels, a housing enclosing said totalizer andhaving sight openings therein that correspond to but are larger than said sight openings in the shell, a magnifying glass at` each sight opening in the housing, each magnifying glass having a convex outer or frontsurface, oppositely beveled top and bottom edges and a substantially flat rear surface, and illuminating means contained within said housing and illuminating exposed numerals on the register lwheels that may be seen through either of said magnifying glasses.

11,*The combination of a traveling totalizer having two sets ofregister wheels, one

-set arranged above the other, a shell for said istei` Wheels may be seen whatever be the position of the totalizer in its line of travel, f 'and a magnifying glass at each openingin v the housing, each magnifyin glass having a convex outer or front sur ace, oppositely beveled top and bottom edges anda substantially fiat rear surface, and illuminating means contained within said housing and illuminating'exposed numerals on the register wheels that may be seen through either of said magnifyingglasses.

12. The combination with a totalizer having a shell with the usual sight opening therein to expose numerals on register wheels contained within said totalizer, of a housing enclosing said totalizer and` having a sight opening therein, a magnifying glass at said sight opening in the housing, said magnifying glass having a convex outer or front surface, oppositely beveled top and bottom edges and a substantially flat rear surface, an electric light bulb contained within said housing below the totalizer, a reflector beneath said bulb for reflecting the light rays upwardly and a reflector above said magnifying glass for reflecting the light rays to the sight opening in the totalizer. y

13. The combination of a totalizer having ytwo sets of register wheels, one set arranged above the other, a shell for said totalizer having correspondingly arranged` .glass at each opening in the housing, each magnifying glass having a convex outer or front surface,- oppositely beveled top and bottom edges and a substantially fiat rear surface, and illuminating means contained `Within saidhousing and illuminating exposed numerals on the register wheels that may be seen through either of said magnifying glasses,.said illuminating means comprising an electric light bulb in the housing below said totalizer, a reflector beneath said bulb, and a second reflector above the upper magnifying glass which reflects light rays that pass through said magnifying glasses to the upper sight opening in the totalizer.

14. The combination with a totalizer having a shell with the usual sight opening therein to expose numerals on register wheels conp tained Within said totalizer, of a housing enclosing said totalizer and having a sight opening therein, a magnifying glass at said sight opening in the housing, said magnifymg glass havin a convex outer or front surface, oppositely veled top and bottom edges and a substantially flat rear surface, and illuminatin means contained within said housing an illuminating exposed numerals on the register wheels that may be seen through said magnifying glass, said il1umi. nating means comprising an electric light 10 bulb contained within said housing below the totalizer, a curved reflector below said bulb, and a flat reflector arranged at an inclination above the to beveled edge ofthe magnifyin glass an coincident with the up r beveled edge thereof to reflect light rays t at pass through the magnifying glass to the sight opening in the totalizer.

Signed at Stamford in the count)7 of Fairfield and State of Connecticut this 9th day of September, A. D. 1930.

SIGURD L. WALSOE.

Images