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Патент USA US3096874

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July 9, 1-963
1. D. KUHLMAN '
3,096,867
CORRECTION OF TYPED ERRORS ON CARBON COPIES
Filed June 25, 1962
INVENTOR
JWMW
United states Patent G?ice
1
3,096,867
CORRECTIQN OF TYPE!) ERRORS 0N
CARBON COPIES
Irene Dorsey Kuhlman, 121 S. Osage, Sedalia, M0.
Filed June 25, 1962, Ser. No. 204,713
3 Claims. (Cl. 197-131)
3,095,857
Patented July 9, 1963
2
tion with the aforementioned error, the aforesaid registra
tion being aided by the alignment of said tabs with the
line in the original ‘also containing said error. A similar
blockout tape is then placed ‘over the error in the original
in a known manner and the erroneous letter is again
struck, thereby causing the simultaneous deposit of the
masking ink formulation or the like, carried by said block
This invention relates generally to the correction of
typing errors on carbon copies.
out tapes on both the original and the carbon copy, where~
like reference characters denote the same or similar parts
throughout the two views, 1 is a conventional blockout
‘direction ‘opposite from said marking surface.
by the error is completely masked or obliterated. Upon
An important object of the invention is the provision 10 removal of the blockout tapes and backspacing again the
of means Where-by typing errors on carbon copies may
typist can now type the correct letter.
be quickly, easily, and neatly corrected.
Having thus described my invention, what I claim as
This and other objects ‘and advantages of my invention
new is:
will more fully appear ‘from the following description with
1. In combination, a sheet of carbon paper having a
reference to the accompanying drawing in which:
15 marking surface and a rear surface, and a blockout correc
FIGURE 1 is a side view in section showing the arrange
tion tape having tabs at the longitudinal ends and a
ment of the several parts of the invention; and
masking ink formulation on one surface thereof, said
FIGURE 2 is a front view of the invention shown in
tape being attached to the rear surface of said carbon
FIGURE 1.
paper adjacent to and in parallel relationship with one
Referring now more in detail to the drawing, wherein 20 edge of said carbon paper, said one surface facing in a
or masking correction tape similar to that commonly used
in the correction of typing errors made on an original or
2. In combination, a sheet of carbon paper having a
marking surface and a rear surface, and a blockout cor
rection tape having masking ink formulation on ‘one sur
ribbon copy, the tape having on its outer face a masking 25 face thereof, said tape being attached to the rear surface
ink formulation or the like of the same color as that of
of said carbon paper adjacent to and along one edge of said
the original or carbon copy sheets. This tape is mounted
carbon paper, said one surface facing in a direction oppo
site from said marking surface.
by any conventional means 2, which means may be, for
example, an adhesive, “Scotch” tape, or interengaging
3. In combination, a sheet of carbon paper having a
perforations, ‘on the back or rear surface of a‘conventional 30 marking surface and a rear surface, a blockout correc
tion tape having masking ink formulation on one surface
sheet of carbon paper 3 having a marking surface on one
side thereof. The tape extends the full width of the carbon
paper adjacent and parallel to one edge, as shown in the
drawing, with the ink surface of the blockout tape dis
thereof, said tape being attached to the ‘rear surface of
said carbon paper ‘adjacent to and along one edge of said
than the height of the type characters used in a conven
tional typewriter. Tabs 4, which may be of cardboard
position.
carbon paper, said one surface facing in a direction oppo
posed oppositely from the marking surface of said carbon 35 site =fro1n said marking surface, and means for facilitating
movement of the blockout correction tape into operative
paper. The width of the blockout tape should be greater
or heavy paper, ‘are attached by any convenient means to
40
the longitudinal ends of the blockout correction tape 1.
In use, the carbon paper 3 is inserted in the normal
way between an original and a carbon copy sheet, the
blockout tape being located at the head or top of said
sheets when ‘disposed in a typewriter. When ‘an error is
made the typist backspaces the typerwriter until the error
is opposite the printing point. Then by means of tabs 4,
the typist turns the carbon paper downwardly to place the
correction side of the tape ?rmly against ‘and in registra
References Cited in the ?le of this patent
UNITED STATES PATENTS
971,283
Krueger ______________ _.. Sept. 27, 1910
1,458,062
Keith _________________ __ June 5, 1923
1,905,118
Nadell _______________ __ Apr. 25, 1933
25,602
440,935
Great Britain _________________ I- 1913
Great Britain ___________ __ J an. 8, 1936
528,589
Great Britain __________ __ Nov. 1, 1940
FOREIGN PATENTS
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