US1120138A

US1120138A - Adding-machine.

Info

Publication number: US1120138A
Application number: US81563314A
Authority: US
Inventors: Julius C Druschke
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-01-31
Filing date: 1914-01-31
Publication date: 1914-12-08
Anticipated expiration: 1931-12-08

Description

J. C. DRUSCHKE.

ADDING MACHINE.

APPLICATION FILED JAN.31.1914.

3 SHEETS--SHEET 1 m w 9 s' N WITNESSES: INVENTOR war [01M 6 c 4 BY INTO/W57 Patented Dec. 8, 1914.

3 SHBETS-SHEET 3.

J. C. DRUSGHKk ADDING MACHINE.

APPLXCAI'IUN rum JAN.31, 191 1,

lllllllllfllll III! III ang NH? $TATES PATENT QFFICE.

JULIUS C. DRUSCHKE, QR HOUSTON, TEXAS.

AI) DING-MACHIN E,

1,120, 138. flpeolfloatlon of Letters Patent.

Patented Dec. 8, 1914.

Application filed January 81, 1914. Serial No. 815,638.

To all whom it may concern Be it known that I, JULIUS C. DRUBGHKE, a citizen of the United States, residing at Houston, in the county of Harris and State of Texas, have invented certain new and useful Improvements in 'Adding-Machiiies,

of which the following is a specification.

This invention relates to new and usef l improvements in adding machines The object of the invention is to provide a device of the character described havi g and illustrated in the accompanying drawiiigs, wherein- Fu ure 1 1S lan view of the com letc p device. Fig. 2 is a horizontal sectional view thereof. Fig. 3 is l] vertical sectional end view thereof. Fig. t IS a detail of the operative mechanism. Figs. 5 and 6 show side and edge views, respectively, of the disks employed in said mechanism. Fig. 7 is a plan view of another form of disk employed. Figs. 8 and 9 show side elevation and edge views,.r'espectively, of one of the numeral disks. Fig. 10 is a linear view of the periphery of the disk shown in Figs. 8 and 9. Fig. 11 shows a plan view of the operating disk, and Figs.'12 and 13 show views of one of the disk supporting shafts.

Referring now' more particularly to the drawings wherein. like numerals of referonce designate similar parts in each of the figures, the numeral 1 refers to a box-like casing which contains the operating mechanism of the device. Secured to the bottom thereof. on the inside. are the lengthwise extending

bars

2, 3. and whose ends are outwardly turned. forming: bearing mem' hers G, 6, 7, 7, S. 8, and 9., 9, in which the re spective ends of the shafts 10, ll, 12 and 13, respectively, have bearings. Near one end of the casing is a vertical shaft 14, which is mounted in suitable bearings carried by the top. bottom of the casing and shaft has a rigidly mounted bevel gear Wheel 15,

which meshes with a similar gear wheel 16,

rigidly mounted on the extended end of-the out'thrqugli the top of the casing and has a circular disk 17 fixed thereon and spaced.

a small distance from the top of the casing.

This disk has ten orifices 18 arranged in a Shaft 12. ()ne end of the shaft 14 extends circular row around the edge thereof and underneath these orifices are printed on the top of the casing 1 the numerals beginning at 1 and ending with 0, arranged. in consecutive order. Fixed upon the shaft 12 between the

bearings

8, 8 is the roller 19,

which is fluted from end to end, giving its periphery a serrated appearance in cross section. Loosely mounted upon the shaft 11 are a plurality of

numeral

20, 21, 22,

23, 24, 25, and 26, only seven being shown,

but this number may be increased in ac; cordance with the desired jcapacityof the machine and loosely mounted upon the shaft.

, 10 are a like number of disks 2-7, 28, 29,30,

31, 32 and 33 arranged in staggered relation/ ad to the disks mounted on the shaft 11, the

edges of the disks of said respective shafts overlapping. The periphery of'these disks 27 to 33 illClllSil'QltIG serrated, or toothed.

26 inclusive is another disk somewhat thinner and smaller in'diameter than the disk to which it is fixed, saiddisks being numbered from 3 1 to 40, respectively. These Fixed to one side of each ofthe disks 20 to as disks are serrated and mesh with the corrcsponding disks 27 to 33 and are rotated thereby. Fixed to the side of the disks 20 to 26, inclusive, opposite the disks 34 to 39, inclusive, are the disks L1 to 46, inclusive,

which have smooth peripheries, but at one 96 side each of said disks has a pair of teeth 47 projecting from the periphery, which enpage with and partially turn the respective disks 28 to 33. inclusive, as said disks 41 to 46 rotate.

Each of the disks 20 to '26, inclusivefis provided with the numerals 1 to 0, inclusive, printed on the periphery thereof and spaced apart there around. The top of the casing 1 is provided with small openings or \\iii dows numbered from 48 to 54, inclusive, which are nlined with the respective disks 20 to 26, inclusive, respectively, so that as said,

last mentioned disks are rotated, the nu-I merals carried thereby will be successively iio exposed through said windows, as shown in Fig. l.

The shaft 13 has a sliding bearing which supports a fork 56, between the fingers of which is rotatably mounted the disk 57, whose periphery is serrated and meshes with the teeth of the roller 19. This fork may be moved on its bearing along the shaft 13 and caused to mesh successively with the disk 31 to 40, inclusive. In the top of the casing 1 is a lengthwise slot 58, whose inner side has tlu notches 59 to 65 inclusive, and

the fork 56 has an extended arm 66 which projects out through the slot 58 and whose outer end has a grip 67, by means of which said fork may be moved along on the shaft 13 and the disk 57 may be locked in mesh with either of the respective disks 34 to 10, inclusive, by seating said arm 66 in the corresponding notch in the side of the slot 58.

Before beginning to add a column, or number of columns, the Os of the disks 20 to 26, inclusive, are brought into alineinent, by a mechanism hereinafter to be described, before the windows 48 to 51, inclusive, and the disk 57 is brought into mesh with the disk 31, as hereinbefore explained. In order to illustrate the operation of the machine, the numbers 597,827 and 275 will be arbitrarily taken and added together. In making this addition, the unit column will be first added, then the tens column and the hundreds column. Some suitable instrument, as a pencil, is firstinserted in the oriiice 18 of the disk 17, over the numeral 7 and said disk then turned to the left, as indicated by the arrow in Fig. 1, until the instrument comes in contact with the stop (38-, which is secured to the casing and ex tends over one edge of said disk 17. This partial rotation of'the disk 17 will be imparted to the shaft 14 and transmitted through the gears 15 and 16, to the shaft 12 and the roller 19 fixed thereon and will operate through the gears 57 and 34, to par tially rotate the disk 20 and bring the numeral 7 in front of the window 48.; The instrumentused for turning the disk 17 is again inserted through the orifice over the numeral 7 and the disk 17 again turned, as before described, and then inserted through the orifice over the numeral 5 and turned until the stop 68 is reached. The total of the first column is 19 and the numeral 9 will be visible through the window 48. The operation of adding the first column will have caused more than one complete revolution of the disk 17, as the total of the column is more than 10, and inasmuch as the gear wheels 15 and 16 arethe same size, the disk 17 and roller 19 will rotate in unison. The roller 19, the disk 34: and the disk 37 are of the same diameter and consequently rotate in unison, therefore, as in the addition of the first column of figures, the disk 17 performed more than a complete revolution, the disk 41 also performed more than a complete revolution, as said disk 41 and the

disks

34 and 20 are integral and rotate together. By the rotation of the disk 41, the teeth 47 carried thereby, meshed with the teeth of the disk 28 and caused a partial rotation thereof, which rotation was trans mitted to the disk 35 and the disk 21 integral therewith and operated to bring the numeral 1 opposite the window 49, showing the total. of the first column to be 19. The arm 66 is then depressed, out of the notch 59 and moved along the slot 58, carrying the fork 56 and the disk 57 carried thereby opposite the disk 35 and said arm is then. seated in the notch 60 and the disk. 57 held in mesh with said disk 35. The second column of figures, or the tens column, is then added in the same manner as hereinbefore explained, by giving the disk 17 three partial turns, beginning first at 9, then at 2 and then at 7, giving a total of 19, after adding in the 1 ten carried from the total of the first column, which was added in by the partial turn of the disk 21 during the addition of the first column. As hereinbefore explained, the disk 57 is then brought into mesh with the disk 36 and the third column is added, as hereinbefore explained, by giving the disk 17 three partial turns by begining first at 6, then at 8 and then at 2, giving a total of 17 after adding in 1 hundred, carried from the total of the second column, which was added in by the partial turn of the disk 22 during the addition of the second column. The total of the three numbers added is 1799, as displayed through the win dows 48, 49, 50 and 51.

It is obvious that the operation illustrated may be continued and any number of columns added, the capacity of the machine being limited only by the number of numeral disks employed.

After the numbers have been added and the total result obtained, before beginning the addition of other numbers, it is necessary to restore the numera lfdisks 20, to 26, inclusive, to their original position, so as to bring the Os opposite the respective windows 48 to 51, inclusive. For this purpose a mechanism has been provided. which -'will now be described. Each of the disks to 33, inclusive has a stud projecting from .thc side thereof, said studs being indicated by the numerals 69 to 75, inclusive, and the shaft 10 has a corresponding num ber of short arms, numbered from 76 to 82, inclusive, projecting out laterally therefrom. These arms are normally out of the paths of the corresponding studs and do not interfere with the rotation of the disks carrying said studs. The shaft 10 is extended through the end of the casin 1 and has a bearing 83 in said casing en This shaft has a limited sliding movement in its bearings and its projecting end carries the head mamas 84, projecting inwardly from which is the finger 85, which normally rests in the notch 86 in said bearing 83. Within the casing 1 and surrounding the shaft 10 is a coil spring 87, which is interposed between the casing end and the collar 88 fixed on said shaft. This spring normally holds the arms carried by the shaft 10 out of the paths of the studs above referred to. When it is desired to restore the numeral disks to their original position, the head 84 of the shaft 10 may be grasped and said shaft moved lengthwise in its bearings, depressing the spring 87 and unseating the finger 85 from its notch 86. The shaft 10 may then be turned and as the arms 76 to 82 have been brought into the paths of the said studs, by the lengthwise movement of the said shaft, when the shaft is turned the arms will engage against the stud and rotate the disks 27 to 33, inclusive, which will in turn rotate the numeral disks 20 to 26, as hereinbefore explaincd. bringing them to the desired position by one rotation of the shaft 10. Said shaft should then be released and the pressure of the spring 87 will operate to move said shaft lcngtl'iwise, seating the free end of the finger R5 in the notch 86 and carry. ing the respective arms 76 to 82, inclusive, out of the paths of the respective studs 69 to 75, inclusive.

In order to prevent the spinning of the disks carried by the shafts l0 and 11 and to insure the true rotation thereof, I have provided a brake 89. consisting of an oblong member secured to the side of the oils ing and depending therefrom and whose under ide has a lining of soft leather or felt, which contacts against the disks 2'? to 33 and prevents them from turning except when positive force is applied thereto.

What I claim is:

l. device of the character described including a supporting casing, a plurality of disks rotatably mounted therein, the peripher of each disk being provided with indicating characters. a manual operative mechanism. an adjustable operative connection whereby said manual 1nechanism'may be connected with either" of said disks and an auxiliary disk. which is in intermittent engagement with one of said first mentioned disks and in constant engagement with the other of said disks, wher by a rotation of the former will impart a. partial rotation to the latter.

2. A device of the character described, in eluding a casing, a plurality of disks rotatablv mounted therein, the periphery of sively with said disks, while maintaining.

its driving relation with said member.

3. A device of the character described including a suitable supporting frame, a plurality of disks rotatably mounted therein, a

' manually operated mechanism, a rotatable member driven thereby, an adjustable operative connection actuated by said membet and in constant engagement therewith, said connecting means being movable with respect to said rotatable member so as to be brought into engagement successivel with said disks, but constantlv maintaining its driving relation with sai member.

4. A device of the character described, including a supporting frame, a plurality of disks rotatably mounted therein, an operative mechanism, a rotatable member driven thereby, an operative connection actuated by said member and constantly engaging therewith, said connecting means being adjustable relative to said member so as to engage successively with'said disks, while maintaining its operative connection with said member and means whereby a complete rotation of one of said disks will impart a partial rotation to the next succeeding disk.

5. A device of the character described ineluding a supporting casing, a plurality of disks rotatably mounted therein, the periphery of each disk being provided with indicating characters, an operative mechanism, an adjustable operative connection whereby said mechanism may be connected with either of said disks, a rotatable meniber driven b said operative mechanism and driving sai operative connection and in constant engagement therewith, and an auxiliary disk which is in intermittent engagement with one of said first mentioned disks and in. constant enga ement with the other of said disks, where y a rotation of the former will impart a partial rotation to the latter. I

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses JULIUS c1 DRUSCHKE. Witnesses J. J. Hmne, MAY MONTGOMERY.