US1560060A - Carbon-paper feeding device for duplicating typewriting machines - Google Patents

Description

Nov. 3,1925;

E. P. KECK CARBON PAPER FEEDING DEVICE FOR DUPLICATING TYPEWRITING MACHINES Filed July 19,

1.9 3 Sheets-Sheet 1 ATmeA/FX Nov. 3 1925.

E. P. KECK CARBON PAPER FEEDING DEVICE FOR DUPLICATING TYPEWRITING MACHINES Filed July 19, l923 5 Sheets-Sheet 2 l/vvs/vroe 620-4054}! 134:

Arrae/vEv Nov. 3, 1925.

E. P. KECK CARBON PAPER FEEDING DEVICE FOR DUPLICATING TYPEWRITING MACHINES Filed July 19, 1925 3 Shee'ps-Sheet 5 Qyvc/vme (mum/0141.; M

' ATTOE/VEF Patented Nov. 3, 1925.

UNITED STATES PATENT OFFICE.

- EDWARD PHILIP KEGK, or CLEVELAND, omo, ASSIGNOR TO ARTHUR s. drum, or

CLEVELAND, OHIO.

CARBON-PAPER FEEDING DEVICE FOR DUPLIGATIKG TYPEWBITING MACHINES.

Application filed July 19, ms. Serial no. 6523509.

To all whomz't may come m:

Be it known that I EDWARD PHILIP Knox, a citizen of the United States, resident of Cleveland, county of Cuyahoga, and State of Ohio, have invented new and useful Improvements in Carbon-Paper Feeding Devices for Duplicating Typewriting Ma.-

chines, of which the following is a specification, the principle of the invention being herein explained,- and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions. I

My invention relates to carbon paper feeding devices for duplicating typewriting machines, its object being to provide means for feeding and manipulating the carbon-sheets used for making manlfold impressions upon manifold forms.

The said invention consists of' means herein fully described and particularly set forth in the claims.

More specifically, my invention consists of a modification of the devices shown and described and claimed in pending application Serial No. 634,696, filed April 26, 192-3, by Arthur S. Gilman, the method of manipulating manifold forms and carbonsheets by means of the present invention, be- 30 ing generally the same as that described and claimed in said above mentioned application.

The annexed drawings and the following description set forth in detail certain means embodying my invention, the disclosed means, however, constituting but one of the various .mechanical forms to which the principle of my invention may be applled.

In the said-annexed drawings Figure 1 re resents a front elevation of the .device em odying m invention, showing same attached to tie platen-carriage of a typewriter, of which latter only a fragmentary portion is shown.

Fig. 2 re resents a side elevation of said device attac ed to such platen-carriage.

Fig. 3 represents a vertical transverse section of the device and taken upon the planes indicated by lines III-III, Fig. 1.

Fig. 4 represents a detailed section taken upon the plane indicated by line IV-IV, Fig. 2.

Figs. 5 and 6 represent sections taken respectively upon the planes indicated by lines V-V, Fig. 4.

Fig. 7 represents a transverse section iaken2upon the plane upon line VIIVII in ig. 8 represents a transverse detailed section taken uponthe plane indicated by. line VIIIVIII in Fig. 2.

Fig. 9 represents a plan of one of the carbon-sheet guides showing a carbon-sheet threaded therethrough.

The disclosed embodiment of my invention is designed to receive a manifold form of'five parts or less and includes an upright frame '1, which is of a form adapted to be attached to the platen-carriage2 of a'typewritin machine, such attachment belng made in any convenient or suitable manner. This frame, as illustrated, is shown to consist of two sidemembers 33, a bottom member 4, cross or brace members 55, and a top transverse member 6 which acts as a guide for leading continuous forms 7 from the source of suppl upwardly and then over and downwardly to the typewriter platen'8 as shown in Fig. 3.- This source of supply (not shown) ma be a multiplic-.

ity of rolls of forms; may e a box of what is known' as fanfold forms, the latter being the term used in, the trade to desi nate forms folded transversely and longitu inally, ormay be a box of forms such as are shown, described and claimed in U. S.Patent No. 1,368,929, issued Feb. 15, 1921, to

The A. S. Gilman Printing Company. The.

front and back of this member 6 are downwardly curved as shown at 99.

The front portion of the frame 1 is preferably inclined slightly toward the rear will, the said detent being so arranged that when thrown out of engagement it'may-' remain so until manually restored.

The other end of the spindleis threaded as at 15 and upon this threaded portion is mounted a square nut 16. This nut projects into the squared end 17 of a central .bors '18 and carbon-sheet roll 19,. Fig

4. Surrounding the interior portion of the spindle 13 is a helical spring one end of which issecured to the roll 19 as at 22 in any suitable or well-known manner. Engaging. the threaded portion of the spindle 1'5 and outwardly beyond the nut 16 is a sto nut 23 which is locked in place by a 100 nut 24.

The brackets 10--10 and other bearings are so arranged that the axis of said spindle is parallel with the inclined front face of the supporting frame 1, as shown in Fig. 2.

Fig. 4, as will be noted, is an axial section of the left-hand roll as viewed from Fig. 1, and the thread on the portion 15 of this s indle is a left-hand thread. Two carbon s eets 25 are wound upon-this left-hand roll 19 so as to unwind therefrom in a clockwise direction, so that in unwinding it may nuts.

The helical springs 20 are so wound that when the carbon-sheets are unwound over the rolls, the said springs will oppose the unwinding so that when the carbonsheets are released the rolls will automatically wind the latter in.

The spindles 13 furthermore are each provided with an interior shoulder 26 which prevents longitudinal displacement of the roll'on its spindle.

Formed integrally with and projecting inwardly from each of the two side members 3-3 are'two lugs 27-27 and 2828, Fig. 1. Each of these lugs carries a fixed stud 29 which projects perpendicularly with reference to the plane of the front face of the device. These studs have their outer ends threaded as shown in Fig. 8 and have their axes located so as topass through the corners of an imaginary rectangle.

The top surfaces of the lugs 27 line in a plane parallel with the direction of feed of the forms downwardly into the platenroller. v

Upon these studs are removably secured a multiplicity of -carbon sheet guides 30, four in the case illustrated, two on the lefthand pair of studs and two on the righthand, pair. The two on the left-hand pair project laterally to the right and the two on the right-hand pair project laterally to the left. These guides are supported solely on one end of these studs so that their other ends are free asshown in Figs. 7 and 8.

t at an angle of fort -five degrees with reference to the direction of feed of the form and the slots on'the succeeding guides at right angles with each other.

The supported ends of the guides are each formed with two pairs of holes 3434, by means of which they'may be slipped 'on the studs 29. By providing these pairs of holes, the guides ma be adjusted to assume different positions aterally whereby they may be adapted to conform with different widths of manifold forms. As illustrated in Fig. 1,

the adjustment is such as is required for a given form, whose width is equal to the transverse distance between the foreends of two succeeding guides 30. By shifting one of the sets of guides, so asto cause the studs to engage the other set of holes thereon, it will be seen that the guides may be used in connection with a manifold form of a greater width. By then shifting the other set of guides so that the stud will engage its second pair of holes, a still wider manifold form may be used in connection with thedevice, all as will be readily understood by those skilled in the art. While but two sets of holes are provided in the form of device shown, it will be obvious that additional holes may be provided as may be reengaged, whereupon the carbon sheets are' unrolled by hand and threaded respectively through slots 32 of the carbon-sheet guides 30, one carbon-sheet passing through but a single slot. In the specific mechanism shown, Figs. 7 and 8, the uppermost carbonsheet ofthe right-hand roll is threaded through the slot'of the uppermost right-'- hand guide and then led downwardly to the.

platen roller. The uppermost carbon-sheet of the left-hand roll is then threaded through the slot of the next guide, led downwardly, the second sheet of the righthand roll is then led through the third guide, and finally the second sheet of the left-hand roll passed through the slot of the last guide and also led downwardly.

The manifold form strip 9 is then led over the detent wheels 14 and the manifold-form strip and the inter-leaved carbons may then be passed through the platen-roller of the type-writing machine and the necessary typewriting' placed thereon by such machine. After the regular typewritten matter is produced, the platen-roller is reversed so as to carry the typewritten forms and carbons back. This reversal is continued, as in the case of the device of the above mentioned application until the carbon-sheets are resheets forward, during which operation the carbon-sheets will remain stationary. Such movement of the platen-roller is continued until the sheets reach the line at which it is desired to tear them off. This tearing off is accomplished by the usual tearing-off knife 37 which is attached transversely to the frame 1 and in its regular position, all as will be readily understood.

The above operation is continued until thos portions of the carbon-sheet which have been used, are worn out.

After the wearing out of the portions of the carbon-sheets mentioned, such portions are torn ofi, and suchtearing off is accomplished in the following manner: a

After the completion of the last typewriting operation before the tearing-off is effected, the forms and carbons are backed up as previously described until the carbons are released. The detents 14 are then disengaged. The forms and carbons being then grasped by the fingers so as 'to pinch them, the platen-roller is then rotated to carry both forms and carbons forward and around the platen-roller. This operation is continued until the extreme ends of the carbon come within a required distance from the knife 37 which is about inch.

The detents are then re-engaged and the rotation continued until the tearing-off line is reached, whereupon the forms and carbons are torn off. The forms and carbons are then backed up until they become disengaged from the platen and pressure'rollers. At the moment of such disengagement, the nut 16 will not have reached the stop 23 and a small amount of tension will remain in the coil springs 20 which will cause a'continuation of the winding in of the carbons, and their ends to be removed from the extreme ends of the manifold form, thereby leaving the required space between such carbon and form ends for properly manipulating'same as is the case of the mechanism of the above mentioned application.

What I claim is:

1. In a device of the class described, the combination of means for guiding a plurality of manifold forms and mounted upon the platen-carriage of. a typew'riting machine; a carbon-roll mounted upon said guiding means laterally thereof, and having its axis extending in the direction of feed of said forms, a carbon-sheet guide having one end secured to the form-guide frame; said carbon-sheet guide having a guidin surface extending at an angle of fortyve degrees, with reference to the'direction of travel of said forms, whereby the carbon-sheet from said roll may .be fed in such direction of travel and means for transversely adjusting said carbon-sheet guide to accommodate manifold forms of various .widths.

2. In a device of the class described, the I combination of a supporting frame; a carbon-sheet rol'l mounted on and at one side of said frame; and a carbon-sheet guide mounted upon said frameand havin a guiding surface forming an angle ofort -five degrees with reference to the axis 0 said roll; said guiding frame being adjustable in the direction'of feeding a'carbon-sheet from ..-bon-sheet roll mounted on and at one side of said 'frame; and a carbon-sheet guide forming an angle of forty-five degrees with reference to the axis of said roll, said carhon-sheet guide being adjustable to accommodate manifold forms of various widths.

4. In a device of the class described, the combination of a supporting frame; two carbon-sheet rolls respectively mounted on and at opposite sides of said frame, said rolls having parallel axes; and two carbon-sheet guides having one end secured to one side of said frame and extending inwardly thereof and havingits other end free whereby they may be interleaved with manifold forms; each of said guides being formed with a guiding surface at an angle of fortyfive degrees with reference to the axes of said rolls: the guiding surface on the respective 'carbon-sheet guides being right-angular-ly related to each other. said carbonsheet guides being adjustable toward and from forms; each of said guides being formed a each. other to accommodat manifold forms with a guiding surface at an angle of fortyof various widths.- five degrees with reference to the axes of 15 5. In a device of the class-described, the said rolls; the guiding surface. on the re I combination of .a supporting frame; two carspective carbon-sheet guides'being right-anbon-sheeti'olls respectively mounted on and gularly related to each other; said carbon at opposite sides ,of said frame,- said rolls sheet guide being adjustable on said suphaving parallel axes; and two carbon-sheet porting frame in the direction of feed of 20 guides each'having one end secured to one the carbon-sheet from said rolls.

10 side of said frame and extending inwardly Signed by me this 30th day of June, 1923. thereof and having its other end free wherea I by they may be interleaved with manifold EDWARD PHILIP KEGK.

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