Improvements in Multiplying Machines.
Year: 1891

page_text: Date of Application, 22nd Sept., 1891
Complete Specification Left, 20th June, 1892-Accepted, 30th July, 1892
'
PROVISIONAL SPECIFICATION.
Improvements in Multiplying Machines.
I, JOHN SAWYER, of 3 Adelaide Place, London Bridge, in the City of London,
Chartered Accountant, do hereby declare the nature of this invention to be as
follows:-
According to this invention I adapt type writers of ordinary construction to
perform the operation of multiplication. For this purpose I cause the depression
of the keys to print two characters instead of only one as is usually the practice,
these two characters being numbers representing the product of two numerals.
I employ 82 keys, 81 of them arranged in 9 rows of 9 each with a single key to
represent zero. The arrangement of the 9 rows on the key board is as follows:-
1st row. 1
2nd row.
1
3rd row.
1
4th row.
5th row.
3 4
4
4
6 7 8 9
7
8
666
7 8 9
9
123456789
2222222
3
3 3 3 3 ∞ ∞ ∞ ∞ 3
4
1010101010101555
66666666
22222222
7 8 9
6666 a
00 00 00 00 00 00 00 00
6th row. 123456789
7th row.
1
8th row.
1
2
9th row.
1
2
4
4
4
7
7
8
9
8 9
8
9
.
PROVISIONAL SPECIFICATION.
Improvements in Multiplying Machines.
I, JOHN SAWYER, of 3 Adelaide Place, London Bridge, in the City of London,
Chartered Accountant, do hereby declare the nature of this invention to be as
follows: -
According to this invention I adapt type writers of ordinary construction to
perform the operation of multiplication. For this purpose I cause the depression
of the keys to print two characters instead of only one as is usually the practice,
these two characters being numbers representing the product of two numerals.
I employ 82 keys, 81 of them arranged in 9 rows of 9 each with a single key to
represent zero. The arrangement of the 9 rows on the key board is as follows:-
1st row. 1
2 3 4 5 6 7 8 9
2nd row.
2
3
4
5 6
8
9
3rd row.
2
4
7
9
4th row.
1
8
9
5th row.
i
3
4
7
8
9
6th row.
1
2 3
4 5
8
9
7th row.
8th row.
1 2 3 4 5 6
123456789
8
6
9th row.
1
2 3 4 5 6
8 9
The figures printed by these keys are respectively :—
4 5 6 7 8
1
2
3
9
2
4
6
8
10
12
14 16 18
3.
6
9
12
15 18
21
24 27
4 8 12
16
20
24
28
32 36
5
10 1:5
20
25
30
35
40 45
6 12' 18
24 30
36
42
48 54
7 14 21
28
35
42
49
56 63
8
16 24 32 40
48
56 64 72
9 18 27 36 45 54 63 72 81
As an example, in order to multiply 853 by 9 the keys 8, 5 and 3 in the 9th row
ill be touched in order thereby printing 724527. If the figures were placed on
he types as shown above it would be necessary also to place thereon a perpendicular
ine in the centre so that the above figures would be printed as follows:
| 24 | 52 | 7 and the product would be 7677 made up by adding the figures in the
eparate divisions. A better plan however of arranging the type diagonally one
elow the other, the last line, for example, standing thus:
01 2 3 A 5 R 7 8

page_text: It is not necessary to have in the type holder as many as 82 types, as some of
them are repetitions, and the following 37 types are all that need be used in the
printing.
1
1 1 1 2 2 2 2 2
0
0
0
0
0
0
0
0
0 0 I
0
1
2
3
4
5
6 7
4
a
2 3'3
3
3
4
4 4 4
8 9 0 2 4 5. 6 8 0 1 4 5 7
4 5 5 6 6 7 8
8 0 2
5
6
0
2 5 8
9
4
6 3 4 2 1.
The lines of figures may be automatically made to come in their proper positions
below and to one side of the preceding line. I do this by giving a step by step
motion to the stop which governs the distance the carriage of the type writer can
be moved back at the commencement of a line so that at the commencement of any
line the carriage instead of being brought back to the place at which the preceding
line commenced can only be brought to a position one step to the side of it.
Dated this 01st day of Santamban 1901
JOHN SAWYER.
COMPLETE SPECIFICATION.
Improvements in Multiplying Machines.
I, JOHN SAWYER, of 3 Adelaide Place, London Bridge, in the City of London,
Chartered Accountant, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
1
According to this invention I adapt type writers of ordinary construction to
perform the operation of multiplication. For this purpose I cause the depression
of the keys to print two characters instead of only one as is usually the practice,
these two characters being numbers representing the product of two numerals.
1 employ 82 keys, 81 of them arranged in 9 rows of 9 each with a single key to
The arrangement of the 9 rows on the key board is as follows:-
VIC
10
represent zero.
1.1.1.
:woin
I
1st row. 1 2 3 4 5 6. 7 8 9
2nd row.
3rd row.
1
4th row.
1
▸
2 3
4
6 7
1 2
1
:
1
1
2 2 2 2 2 2 2
3
4
5
6 7 8
9
4
5
6
7
.
8
3
4
5
6
3
4
5
6
333
34
777
666
555
444
7 8
78
8
8
7 8 9
∞ ∞ ∞ ∞ ∞ ∞
66
9
9
9
60
od !
5th row. 1
6th row.
7th row.
8th row.
9th row.
9
j.
9

page_text: It is not necessary to have in the type holder as many as 82 types, as some of
them are repetitions, and the following 37 types are all that need be used in the
printing.
0 0
0 0
(
0 0 0
0
1 1
0 1 2 3 4
5
6 7 8
9
0
1 1 1 1. 2 2 2 2 2
2 4 5 6 801 4 5 7
8
4 2 1.
2 3 3 3 3 4 4 4 4 4 5
8 0 2 5 602 5 8 9
4 6
Although I prefer that the keys should be in nine rows on the key board as
above described this is not essential and in the case of existing machines especially
it may be more convenient to arrange them otherwise.
The lines of figures may be automatically made to come in their proper positions
below and to one side of the preceding line. I do this by giving a step by step-
motion to the stop which governs the distance the carriage of the type writer can
be moved back at the commencement of a line so that at the commencement of any

page_text: line the carriage instead of being brought back to the place at which the preceding
line commenced can only be brought to a position one step to the side of it.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what
I claim is:-
1. Multiplying machines consisting of a type-writer in which each key prints two
characters representing the product of two numerals.substantially as described.
2. Multiplying machines substantially as described.
JOHN SAWYER.