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Патент USA US3035688

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May 22, 1962
J. E. MORRIS
3,035,678
MARGIN JUSTIFYING ATTACHMENT FOR TYPEWRITERS
Filed Sept. 21, 1959
3 Sheets-Sheet 1
é?
$76.3
INVENTOR.
- r/O/M' E. Maze /6
BY
MZM
Arm
May 22, 1962 .
J. E. MORRIS
3,035,678
MARGIN JUSTIFYING ATTACHMENT FOR TYPEWRITERS
Filed Sept. 21, 1959
1'76. 6
3 Sheets-Sheet 3
3
P75. 9
{30
[76. /0
INVENTOR.
Jay/v .5. Maze /3
Arrx
United States Patent 0
1
3,035,678
Patented May 22, 1962
2
pinion 21 which engages the usual rack bar 22. Fixed
3,035,678
to the shaft 20 is an escapement wheel 23 having teeth
MARGIN JUSTIFYING ATTACHMENT FOR
TYPEWRITERS
24. A back dog 25, for the pinion 21, is pivoted as at 26
to the escapement wheel 23 and a spring 27 mounted
on the escapement wheel 23 is employed to yieldably re
John E. Morris, RR. 1, Hopkinsville, Ky.
Filed Sept. 21, 1959, Ser. No. 841,180
14 Claims. (Cl. 197-84)
tain the back dog 25 in engagement with the pinion 21.
The frame 16 also has a shaft 28 mounted thereon on
This invention relates to a margin justifying attach
which is rotatably mounted a roller 29 which engages the
ment for typewriters.
carriage bar 30 of a carriage 31.
An object of this invention is to provide a device of 10
The horizontal arms 17 and 18 are provided with
aligned depending portions 32 and 33 in which are mount
this character that is adapted to be attached to a type
ed cone bearings 34 and 35 for pivotally supporting a dog
writer whereby the margin on the right hand side of type
rocker 36 which carries a ?xed dog 37 and a pivoted or
written matter may be aligned for all the lines of the
limber dog 38 which intermittently engages the teeth
matter.
It is a well-known fact that typists ?nd it very difficult 15 24 of the escapement wheel 23 in the usual manner when
ever the dog rocker 36 is rocked by the key levers 14.
matter and mere guesswork will not provide such a re
The limber dog 38 is pivotally mounted as at 39' on the
dog rocker 36 and a coil spring 40 has one end connected
sult with any success.
to the dog rocker 36 and the other end connected to the
Another object of this invention, therefore, is to pro
vide a device of this character that provides a certain 20 limber dog 38, whereby the limber dog 38 is normally
urged in a direction toward a stop 41 on the dog rocker
number of spaces within each line so that each line will
be of the same length and the right-hand margin will be
36.
to properly align the right-hand margins of typewritten
uniform throughout the ‘entire length of the typewritten
matter.
I Attached to the rear face of the dog rocker 36 is a
spring arm 42 which carries a roller 43 which is en
1
A further object of the. invention is to provide ade
vice of this character which may be embodied into any
25 gaged by the usual universal bar and the tension of the
spring arm 42 is controlled by a set screw 44.
-
In its normal position, the dog rocker 36 is located
conventional typewriter without materially changing the
in a substantially vertical plane with regard to the axis
various parts thereof.
of the cone bearings 34 and 35. The dog rocker 36 is
A still further object of the invention is to provide a
device of this character that is simple, inexpensive, high 30 limited in its forward swinging movement by an adjust
able stop screw 45 which is mounted in the vertical arm
ly e?‘icient and may be quickly and easily attached to any
conventional typewriter.
19, as shown in FIG. 9, and the dog rocker 36 is re
tained in yieldable engagement with the stop 45 by means
With the above and other objects and advantages in
of a coil spring 46 which is connected at one end to the
view, the invention consists of the novel details of con
struction, arrangement and combination of parts more 35 dog rocker 36 and at the opposite end to a depending
arm 47 of a tensioning bracket 48 that is connected to
fully hereinafter described, claimed and illustrated in
horizontal arm 18. The spring 46 is normally inclined
the accompanying drawings, in which:
forwardly and downwardly and the end connected to the
FIG. 1 is a side elevational view of a conventional
arm 47 is positioned at a point in front of and below
typewriter and showing in dotted lines portions of ap
plicant’s device attached thereto;
40 the cone bearings 34 and 35 which pivotally support the
dog rocker 36. The rearward movement of the dog
FIG. 2 is a ?agmentary front elevational view on the
line.2——2 of FIG. 1;
-
FIG. 3 is a vertical sectional view on the line 3-—3
of FIG. 1;
1
“FIG. 4 is a longitudinal sectional View on the line
4—4 of FIG. 3;
a
FIG. ‘5 is a longitudinal sectional viewon the line
rocker 36 is limited by the engagement of a block 49 on
the rear of the dog rocker 36 with an adjustable stop
screw 50 that is mounted in the vertical arm 19 of the
frame 16. An adjustable stop screw 51 for engagement
45 with the limber dog 38 is mounted in the block 49, to
= limit the movement of the limber dog 38.
A space bar lever arm 52 for the actuation of the dog
rocker 36 is pivotally mounted at 53 and 54 on a bracket
55 that is secured to the horizontal arm 18. The lever
FIG. 3;
50 arm 52 has a power end 56 that is usually connected
‘ FIG. 7 is a vertical sectional view on the line 7—7
to the conventional space bar 57.
of FIG. 6;
.
5—5 of FIG. 3;
FIG. 6 is a vertical sectional view on the line 6—6 of
As previously described, the dog rocker 36 has a ?xed
dog 37 and a limber dog 38 and the device embodying
the invention includes the addition of a second ?xed dog
FIG. 9 is a vertical sectional view on the line 9—9
55 58 which is ?xed to the dog rocker 36. The ?xed dog
of FIG. 3; and
58 is of arcuate formation and extends to a position for
FIG. 10 is a vertical sectional view on the line 10-—-10
wardly of the ?xed dog 37. The ?xed dog 58 is posi
of FIG. 9.
tioned slightly to the right of the ?xed dog 37 and the
Referring more in detail to the drawings, wherein
upper end of the ?xed dog 58 extends toward the ?xed
like parts are designated by like reference numerals,
thereference numeral 15 is used to designate a type 60 dog 37, see FIGS. 4, 9 and 10. The dog rocker also
has a backward limiting dog 13 pivoted at 12, outwardly
writer of conventional design.
of the ?xed dog 58 and the dog 13 is tensioned by a
Since the construction of the typewriter 15 is well
spring 11. The dog 13 engages the teeth 24 of the es
known to those skilled in the art, it is believed that it
capement 23 to limit backward movement thereof in the
will only be necessary to refer to and describe those parts
of the typewriter 15 with which the device embodying 65 conventional manner.
,
the invention is associated.
The invention also contemplates the use of the follow
The invention is associated with the escapement mech
ing parts: A counter escapement 59 that includes a base
arm portion 60 that is provided with spaced slots 61 and
anism of the typewriter 15 which is supported by a frame
62, through which extend fasteners 63 that adjustably
16 which includes a pair of horizontal arms 17 and 18
and an upwardly extending vertical arm 19 in’ which is 70 secure the base arm portion 60 to the power end 56 of
journalled a shaft 20, on which is rotatably mounted a . the lever arm 52. A vertically disposed portion 64 ex?
' FIG.‘ 8 is a vertical sectional view on the line 8—8 of
FIG. 3;
'
3,035,678
4
screw 91. Thus, the counting mechanism 88 is a single
tends upwardly from a portion of one longitudinal edge
compact unit that is retained in position on the shaft 77
of the base arm 68, forwardly of the portion 64, and
by the set screw 91 that is mounted in the collar 90.
an L-shaped portion 65 extends upwardly from the lon
Mounted in the free end of the arm 89 is a stop screw
gitudinal edge of the base arm portion 60 forwardly of
the portion 64. Forwardly of the L-shaped portion 65 a 5 92 which engages the L-shaped portion 65 to restrain
the movement of the lever arm 52 when only single spac
downwardly disposed vertical portion 66 is provided on
ing of the typewriter 15 is desired. A nut 93 on the
the longitudinal edge of the base arm 60 and a spring
screw 92 retains the screw 92 in adjusted relation to the
biased coupling 67, that absorbs some of the jar when
L-shaped portion 65.
the typewriter 15 single spaces, extends outwardly from
A coil spring 94 is mounted on the shaft 77 forward
the portion 66 at right angles thereto and is positioned
below the power end 56 of the lever arm 52. The base
arm portion 69 has an enlarged outer end 68 that has a
of the collar 98 and with one end connected to the collar
90 and the opposite end secured to the frame 76, as at
95, a torque in a counter-clockwise direction is given to
depending portion 69 integral therewith. Extending in
the shaft 77.
wardly from one edge of the portion 69, at right angles
The conventional escapement mechanism previously
thereto and in spaced parallel relation to the portion 68, 15
described includes a dog rocker 36 on which is mounted
is an apertured pivot portion 78. Extending upwardly
in angular relation to the portion 69 is an L-shaped por
tion 71. A substantially U-shaped limiting arm 72 is
pivotally mounted as at 73 on the pivot portion 70 and
a ?xed dog 37 and a limber dog 38 which functions to
step the carriage for each letter or space, one space
distance each time the escapement mechanism is actu
a coil spring 74 is connected at one end to the free end 20 ated. Thus, the escapement wheel 23 will move one
notch when the letter or number keys or the space bar
of the arm 72 and at the other end to the base arm
are depressed. The invention by mounting a second
?xed dog 58 on the dog rocker, provides that an addi
tional space is added when the space bar 57 is depressed.
The dogs 37, 38 and 58 are so spaced that when the
The counter escapement 59 may also be made an in 25
invention is not in operation, as will be later described,
tegral part of the lever arm 52 in new typewriters, but
each time the letter or number keys or the space bar are
is made as previously described as an attachment to type
portion 60. Instead of connecting the space bar con
necting rod 75 to the power end 56 of the lever arm 72,
the connecting rod 75 is connected to the coupling 67.
writers that are in use at the present time.
depressed, the dogs will allow only one notch of the
escapement wheel 23 ‘to pass as previously described.
Journalled in the frame 76 is a shaft 77 that extends
The counting mechanism 80 is so constructed that
in a plane above and at right angles to the lever arm 30
when in operation the letter and number keys will only
52 and the counter escapement 59. The shaft 77 extends
permit one space, but the space bar 57 when depressed
through the front of the typewriter 15 adjacent the
will permit two spaces.
ribbon control key and has a pointer 78 ?xed thereto
In preparing printed matter for printing, it is necessary
that is alined with the numbers onthe circular indicator
plate 79 that is mounted on the shaft 77 rearwardly of 35 to have both margins even, it is easy to make the left
the pointer 78. Thus, the only visible parts of the device
hand margin even, but the di?iculty in making the right
hand vmargin even is well known. The invention in
are the pointer 78 and indicator plate 79, since the oper
operation will, however, make the right hand margin
ating mechanism of the device is mounted within the
even and such is accomplished by ?rst typing out the
body of the typewriter 15. The shaft 77 is positioned in
the upper right hand corner of the body of'the type 40 material and then determining how many extra spaces
are required in each line. When this has been deter
writer 15 so that it interferes with fewer standard parts
mined, the pointer 78 is turned clockwise to the desired
of the typewriter 15.
number which will then provide that number of extra
A counting mechanism 80, FIGS. 4 and 6, is mounted
spaces that are necessary to make the line the required
on the shaft 77 within the typewriter 15 and the mecha
nism 80 includes the following parts: A ratchet wheel 81 45 length.
When the pointer 78 is rotated, the shaft 77 will be
is rigidly mounted on a sleeve 82 that is loosely mounted
rota-ted, the screw 92 will become disengaged from the
on the shaft 77 with one end thereof in line with the L—
L-shaped portion 65 and the counter escapement will be
shaped portion 71. An escapement wheel 83, having
‘controlled by the escapement wheel 83 of the counting
teeth 84 thereon and similar in construction to the con
ventional escapement wheel 23, is mounted on one end 50
of a sleeve 85 that is rotatably mounted on the sleeve
mechanism ‘80.
'
As the ratchet wheel 81 is rotated, the back dog 86 per
mits the same number of teeth to pass as the pointer 78
82, with one side of the escapement wheel 83 in contact
shows on the indicator 79. With the screw 92 disengaged
with one side of the ratchet wheel 81. A back dog 86
from the counter escapement 59, the rod 75 is pulled for
for engagement with the ratchet wheel 81 is pivoted at
87 on the side of therescapement wheel 83 that is in 55 ward further than usual when the space bar 519 is de
pressed. Thus, the engagement of the screw 92 with the
contact with the ratchet wheel 81 and a spring 88
L-shaped portion 65 determines whether the typewriter
mounted on the escapement wheel 83 is employed to
15 single spaces or double spaces. Thus, after the escape
yieldably retain the back dog 86 in engagement with the
ratchet wheel'81. The back dog 86 engages with the * ment wheel 83 has rotated back to normal position, the
typewriter 15 will single space, the double spacing being
ratchet wheel 81 so that the sleeve 82 and the ratchet
accomplished by the engagement of the second ?xed
wheel 81 thereon, shaft 77 and escapement wheel 83 will
dog 58 with the escapement wheel 23.
rotate simultaneously in a counter-clockwise direction,
As previously stated, the ratchet wheel 81 and shaft 77
but will allow the shaft 77 and sleeve 82 with the ratchet
'will rotate clockwise and the arm~ 72 will prevent the
wheel 81 thereon to rotate clockwise without the escape
escapement wheel ‘83 from rotating clockwise, but when
ment wheel 83 moving. Since the ratchet wheel 81 and
the back dog 86 is engaged with the, ratchet wheel 81, the
the escapement wheel 83 have the same number of
teeth of the escapement wheel 83 will by-pass the arm
teeth, they will cause the shaft 77 to rotate through the
72 to return to normal or aline with the zero on the
same number of degrees per tooth, both clockwise and
counter-clockwise.
indicator 79.,
‘
A bumper or stop arm 89 is rigidly mounted on the
The shaft 77 may also be rotated by a pawl and ratchet
assembly 96 that is attached by a short rod 97 to one of
sleeve 82 at the free end of the sleeve 85 and the stop
the key levers 14, as in FIG. 1.
>
arm 89 retains the escapement wheel 83 in contact with
There has thus been provided va device which will add
the ratchet wheel 81. A collar 90 is rigidly mounted on
spaces to a line of typewritten matter so that the margin
the opposite end of the sleeve 82 in contact with the arm
89 and the collar 90 is ?xed to the shaft 77 by a set 75 on the right will be even throughout its entire length, thus,
3,085,678
5
6
the length of the line is not a determining factor in the
means comprises a counter mechanism having a pointer
and indicator associated therewith to determine the num
ber of times in ‘one line of printed matter that said second
operation of the attachment embodying the invention.
Thus the line does not have to be a certain number of
?xed dog will engage said escapement wheel.
10. The combination set forth in claim 9, wherein said
counter mechanism includes an escapement wheel having
teeth thereon and said indicator has indicia thereon that
coincide with the number of teeth on said escapement
wheel.
is believed, therefore, that from the foregoing description 10 ll. in a typewriter having a frame, a carriage movably
mounted on said frame, and escapement mechanism for
the structure and function of the invention will be apparent
effecting letter-spacing movements of said carriage, a mar
to those skilled in the art.
gin-justifying attachment comprising means on said
It is also to be understood that changes in the minor
escapement mechanism for effecting double-spacing move
details of construction, arrangement and combination of
parts can be resorted to provided they fall within the 15 ments of said carriage and a counting mechanism for de
termining the number of
es the escapement mechanism
spirit of the invention and the scope of the appended
will cause double spacing of said carriage.
claims.
12. A typewriter having a frame, a carriage movably
Having thus described the invention what is claimed as
mounted on said frame, an escapement mechanism for
new and desired to be secured by Letters Fatent is:
effecting letter-spacing movements of said carriage, a mar
1. In a typewriter having a frame, a carriage movably
gin-justifying attachment comprising double-space means
mounted on said frame, and escapement mechanism for
for effecting double-spacing movements of said carriage,
effecting letter-spacing movements of said carriage, a
operating means for selectively placing said double-space
margin justifying attachment comprising a ?xed dog on
means in operative ‘or inoperative condition, a manually
said escapement mechanism for effecting double Spacing
movements of said carriage and a counting mechanism 25 operable space bar connected to said escapement mecha
nism for causing double-spacing movement of said carriage
for determining the number of tirnes the escapernent
when said double-space means is in operative condition
mechanism will cause double spacing of said carriage.
and for causing single-spacing movements of said carriage
2. The combination set forth in claim 1, wherein a
when said double-space means is in inoperative condition
space bar lever arm is included in said escapement mecha
nism and a counter escapement is attached to the lever 30 and a counting mechanism connected to said operating
spaces in length with the typewriter on which it is mounted
operating for that number of spaces or with the operator
endeavoring to perform some complicated method of set
ting the typewriter. Therefore, in the use of the invention
any length of line can be aligned, thus each paragraph
can be aligned with any length of line that is desired. it
arm and is positioned for engagement with said counting
mechanism.
3. The combination set forth in claim 2, wherein said
counting mechanism includes a shaft, a pointer on the
means for operating same to place said double-space
means in operative condition for a selectable number of
escapement wheel is mounted on said shaft, a ratchet wheel
is mounted on said shaft and a spring biased back dog is
mounted on said escapement wheel for engagement with
manner to cause double-spacing movement of said car
aotuations of said space bar and for thereafter placing
said double-space means in inoperative condition.
13. A typewriter having a frame, a carriage movably
outer end of said shaft and an indicator is positioned on 35
mounted on said frame, an escapement mechanism for
the typewriter to coincide with the pointer to indicate by
effecting letter-spacing movements of said carriage, a
means of the pointer the nurnber of times it is necessary to
manually operable spacer bar, means for actuating said
cause double spacing of said carriage to justify a margin
escapement mechanism in response to actuation of said
in printed matter.
spacer bar, said actuating means being movable in one
4. The combination set forth in claim 3, wherein an
said ratchet wheel.
riage and being movable in a second manner to cause
single-spacing movement of said carriage, blocking means
movable between a ?rst position where it permits said
5. The combination set forth in claim 3, wherein a 45 actuating means to move in said one manner and a second
position Where it limits said actuating means to movement
stop
is mounted on said shaft and said stop arm is
in said second manner and manually selectable counting
positioned for engagement with the counter escapement
means operable by said spacer bar and connected to said
on said lever arm.
blocking means for placing same in said one position for
6. The combination set forth in claim 5, wherein a
a selected number of actuations of said spacer bar to
spr'ng is mounted on said shaft and connected thereto
thereby e?ect double-spacing movement of said carriage
and to said frame for providing a torque in a counter
and for thereafter placing said blocking means in said sec
end position so that further actuation of said spacer bar
will e?ect single-spacing movement of said carriage.
adjusta le screw is mounted in said stop arm and an L
14. A typewriter as de?ned in claim 13 wherein said
shaped portion is provided on said counter escapement 55
actuating means is a pivotally mounted lever and said
for engagement with said screw.
blocking means is a stop which when in said second posi
8. A margin justifying attachment in combination with
tion permits only a limited movement of said lever.
an escapement mechanism including an escapement Wheel,
a dog rocker, and fixed and movable dogs mounted on said
References Cited in the ?le of this patent
rocker for alternately engaging the escapement wheel, 60
said ‘margin justifying attachment comprising a second
UNlTED STATES PATENTS
?xed dog on said rocker for alternate engagement with
586,351
Brooks ______________ .. July 13, 1897
said escapement wheel and means for deterrrdning the
886,557
Volker .._ _____________ __ May 5, 1998
number of times said second ?xed dog will engage said
1,493,621
Farina ______________ __ May 13, 1924
escapement wheel.
2,011,887
Bell ________________ __ Aug. 20, 1935
9. The combination set forth in claim 8, wherein said
2,288,806
Smith ________________ __ July 23, 1940
clockwise direction.
7. The combination set forth in claim 5, wh rein an
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