US1518617A - Typewriting machine - Google Patents

Description

Dec. 9 1

J. WALDHEIM TYPEWRITING MACHINE Filed Nov.- 20, 1918 2 Sheets-Sheet 1 I //7ve/770r:

6 xhfome Dec- 9, J. WALDHEIM TYPEWRITING MACHINE Filed 1918 2 Sheets-Shae}, 2

Patented Dec. 9, 1924.

UNHTED STATES PATENT @F'FICE.

JOHN WALDI-IEIIH, OF ELIZABETH, NEW' JERSEY, AS SIGNGR T UNDEEWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION 035 DELAWARE.

TYPEWRITING MACHINE.

Application filed November 20, 1918.

2' '0 all whom it may concern:

Be it known that 1, JOHN WVALDHEIM, a citizen of the United States, residing in Elizabeth, in the county of Union and State .5 of New Jersey, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

This invention relates to typewriting malo chines, and is illustrated as applied to a ma chine of the type disclosed in the patent to Wernery and Smith, No. 1,182,055. The machine herein disclosed, however, may be used with a plurality of separate webs which may be on independent supply rolls.

This invention belongs to that class of devices whose object is to produce considerable slack or looseness between web-supply rolls and the platen, so as to relieve the platen and its feed-rolls and the line-space mechanism from the drag caused by the work of unwinding the webs from the heavy supply rolls at the line-spacing operations during the writing out of the forms.

Heretofore, for positioning the carbonsheets relatively to the webs, an adjustable rear stop has been used against which the carbon-carriage was pushed while the Web? were held'stationary at a gaging position. In practicing the present invention, after a form has been written and the platen displaced, the webs are grasped and drawn forward. The carbons and carbon-carriage move with the webs until the carbon-carriage advances out of the field of its line-by-line feedingmovements and strikes a front stop. After this, the web or webs are drawn further forward preparatory to. producing slack therein. The web is gaged against an adjustable leading edge gage, which is located far enough forward to permit a large amount of web to be unwound from the supply rolls, this gage serving to determine the extent of relative shifting between the web and the carbons, and being one of the elements that co-operatc to determine the amount of slack. The front stop for the carbon-carriage holds this carriage and the carbons stationary during the drawing forward of the webs for producing the shift of web, and this stop is so located that when the webs are brought to the gage concomitantly the carbons will be correctly positioned be tween the webs ready for the writing of the next form. This concomitant gaging of the Serial No. 963,243.

webs and positioning of the carbons relatively thereto by the drawing forward of the webs is dependent upon the front stop for the carbon-carriage; the new organization comprising this stop being a feature in the present invention. The carbon-carriage is now shifted back, while theplaten is still displaced, and carries back with it not only the carbons but also the webs, and the carbon-carriage at the end of its backward movement abuts against a rear stop. This backward movement of the carbon-carriage to a mechanically predetermined extent does three things, first, it brings the formwhich has been written on to position to be severed by the usual knife, second, it brings the next unwritten form in position for thefirst line of typing to be done thereon, and third, it deposits the slack in the desiredposition between the carbon-carriage and the supply rolls. Said rear stop therefore is a gage for the web-severing operation, and also for 10- cating the webs in position to receive the first line of typing on the freshform on the webs, and it also co-operates with the front stop to measure the amount of slack. Heretofore, the carbon-carriage had to be given an extra forward and back movement, or additional reciprocation, in order to produce slack in the webs.

Preferably, a clamp on the carbon-carriage is used to grip the webs during the backward movement of the carbon-carriage to make sure that there will be no slipping, during this movement, between the carbonsheets and the webs. But this clamp is releasable, not being used in drawing off the slack from the rolls, which is accomplished entirely by the pulling forward of the webs.

Other features, and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1' is a perspective view of a machine of the type referred to, showing the present invention as applied thereto.

Figure 2 is a diagrammatic sectional side view, showing the platen thrown up immedia ely after finishing a bill, to enable the relative shifting of the carbon sheets and'the webs.

Figure 3 is a view similar to Figure 2, but with the webs advanced to the point where the carbon carriage, in advancing with them. strikes stop. V

Figure 1- is a view similar to Figure 3,

but with the webs advanced until they reach the end gage, thus showing the webs advanced relatively to the carbon sheets and the unwinding of the webs from the rolls.

Figure 5 is a view similar to Figure 4, with the carbon carriage pushed rearwardly with its clamp effective so as to bring the webs and carbons to the first line of writing of a new section or bill to the printing point and also create a slack in the unwound portions of the webs.

The typewriter carriage 1 travels on a rear rail 2 and a front rail, not shown, carrying along with it an extension 3 having side bars 4 and 5 and including a roll 6 which runs on a secondary rail 7." VJ hen writing, the parts are in the position shown in Figure 1, in which the platen 8, journaled in the swing frame 9, restsagainst front and rear feed-rolls 10, so that a web or webs 11 passed around the platen can have types 12 print against the front side thereof. As herein illustrated, the webs 11,

instead of being fan-folded, are drawn from a plurality of rolls 13 from which they ride over the rear end 14 of the extension 3 between side gages 15 and thence are drawn forwardly over a paper table 16, Figure 2, and thence between the feed-rolls 10 and the platen 8.

In order that a plurality of copies may be made on these webs at one time, there are provided carbon sheets 17 interleaved between the webs by being clipped to arms 13 forming a grating and extending inwardly from the side plates 19 of a carbon carriage 20, said carriage being adapted to run upon the bars or rails 4 and 5. The webs, which usually are provided with printed forms or sections, may be advanced through the grating. \Vhen a web is being printed upon, its leading end usually lies against the front of an upper paper table 21, Figure 1, which is provided with an extension 22 supporting a gage 23 to enable the slack of the webs to be measured. 7

.When the form is filled out, the typist presses rearwardly a hook 24 and draws forwardly on a handle 25, thus swinging the swing frame 9 around the shaft 26 upon which it is journaled, thereby raising or, in other words, displacing the platen 8 to the Figure 2 position. l/Vhen the platen is in this position, the typist seizes the webs 11 and draws them forward to produce slack therein, until they reach the position shown in Figure 4, where they abut against the end gage 23 which determines or measures the amount of slack, and is adjustably mounted on the extension 22. During the first part of the drawing forward of the webs 11, the carbon carriage 20 is drawn therewith owing to the friction of the carbon sheets 17 upon the webs. Before the webs are gaged against the slack-measuring gage 23, however, the carbon carriage will strike a properly located stop 27 adapted to be adjustably positioned in any one of a plurality of openings 28 in the side 4, with the result that the carbon carriage is arrested at the point shown in Figure 3, so that further drawing of the webs produces slack therein and also shifts the carbon sheets rearwardly relatively thereto until the position shown in Figure 4 is reached. The typist then seizes a handle 29 at the end of a forwardly extending bar 30 fast to the carbon carriage, and draws a fingerpiece 31 against the handle 29, thus making a clamp 32 effective to seize the webs 11. When the webs are thus seized, the typist pushes the handle 29 rearwardly, bringing the carbon carriage to the point shown in Figure 5, against a rear stop 33, thus depositing slack loops 35 in the webs between the rolls 13 and the carbon carriage 20, the extent of such slack having been deter mined by means of the gage 23.

The clamp 32 is normally held released by a spring 36, so that when the typist lets go at the Figure 5 position, the spring 36 swings the finger-piece rearwardly, thus pushing rearwardly the link 37, which is pivoted both to the finger-piece 31 and a rock arm 38, with the result that the rock arm rotates the shaft 39 to which it is fast, thereby lifting the jaw 40 of the clamp 32 because said jaw is formed as the end of a rock arm 41 fast to the shaft 39. The other jaw of the clamp may be the crossbar 42 of the carriage 20. The shaft 39 is usually journaled in a bracket .43 fast to one of the side bars 19.

When the typist has positionedthe webs, as shown in Figure 5, the next operation is to swing the typewriter swing frame 9 back to the Figure 1 position, so that it is hooked in position by the hook 24, and the webs areheld firmly between the platen 8 and the feed-rolls 10. The typist then severs the parts of the webs just written from the main part of the webs, by drawing them against the usual knife 44. If the stop 27 is properly positioned relatively to the gage 23 and also relatively to the stop 33, the webs will. besevered at precisely the proper point, irrespective of where writing ceased. Said stop 33 therefore serves as a severing gage. as well as a gage for locating the fresh section. or form of web in position to receive the first line of writing.

In order to enable line-spacing to be done, the carriage comprises the usual line-space handle 45, which is adapted to operate the usual ratchet wheel 46 to which the knob 47 is fast, said ratchet wheel being connected to the platen axle by the usual pinions 48 and the usual idle pinion, not shown, but mounted on the shaft 26.

From the foregoing it should be under stood that the relative shifting between the carbon-sheets and webs, and the unwinding of slack from the supply rolls takes place concomitantly with the drawing forward of said webs to a gaging position.

It should further be understood that the method of causing the relative shifting between the carbon-sheets and the webs may be used irrespective of whether the webs are separate or of the usual fan-fold type.

In the machine of the present invention, it is not necessary to hold the webs stationary with one hand while the carboncarriage is moved rearwardly with the other hand, as has commonly been necessary heretofore, in order to position the carbon-sheets relatively to the webs. It will also be noted that the webs may be released as soon as they are gaged if the finger-piece 31 is actuated to make the clamp 32 effective. In the case of some webs, such as fan-folded webs, the actuation of the finger-piece 31 may be unnecessary, since the friction of the webs on the carbon-paper and carbon-carriage may be sufficient to cause the webs to travel vith the carbon-carriage, as this carriage is retracted rearwardly. Also the clamp 82 might be omitted and the relative positions of the carbon-sheets and webs could then be maintained by the pressure of a finger of the typist, if need be.

Stop 33, which arrests the return stroke of the carbon-carrier in the exact position required for severing the web accurately between the last typed form and the next to be typed, is the web-severing gage. The gage 23, to measure ofi the slack, is located at a distance of two web sections or forms past the severing knife 44, the slack equaling the length of one of said forms. The length of the slack is equal to the stroke of the carboncarrier between its front stop 27 and its websevering stop or gage 38. In other words, the return stroke of the carrier retracts the web from gage 23 to the position where it is to be severed by knife 44.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a traveling typewriter carriage having a platen, of a traveling carbonpaper carriage to which a carbon-sheet is fastened, a stop for the carbon-paper carriage on its forward travel, to arrest the carbon-sheet while the sheet extends far enough beyond the writing line to cover a work-form, and a work-form measuring gage for engaging the leading end of the web and positioned a plurality of lengths of a work-form beyond the end of the earbon-sheet positioned as above stated, for measuring out an untyped work-form.

2. In a typewriting machine, the combination with a traveling typewriter carriage and a carbon-paper-carriage, of an adjustable stop for limitingthe forward travelof said carbon-paper-carriage, a stop for limiting the backward travel thereof, a platen around which webs are adapted to be passed, an end gage for gaging the end of the web passed around the platen relatively to the carbons at the forward limit of their travel, and a clamp for clamping the web to" the carbon-paper-carriage to carry the web backwardly from said gaged position to writing position to create a slack in the web adapted to be drawn on for line-spacing.

3. In a typewriting machine, the combination with a traveling typewriter carriage having a platen, of a carbon-paper carriage to which a carbon-sheet is fastened, an ad justable stop for the carbon-paper carriage, on its forward travel, to arrest the carbonsheet while said sheet extends far enough beyond the writing line to cover a workform, an end gage for the web, adjustable to gage a full length of a work-form beyond the end of the carbon-sheet so positioned, and a clamp upon the carbon-paper carriage to carry the web backwardly so that the next writing line will be approximately at the printing point on the platen.

4. In a typewriting machine, the combination with a traveling typewriter carriage and a carbon-paper carrier, of a revoluble platen, stops for limiting the forward and backward travel of said carboncarrier, and a slack-measuring gage for the leading edge of the web, the stroke of said carrier being about equal to the length of a work-form of the web, and the distance from the forward point where said carrier is stopped to said slack-measuring gage being about twice as great as the length of a workform.

5. In a typewriting machine, the combination with a traveling typewriter carriage and a carbon-paper carrier, of a revoluble platen, stops for limiting the forward and backward travel of said carbon-carrier, and a slack-measuring gage for the leading end of the web, the stroke of said carrier being about equal to the length of a work-form, and the position of said gage about two lengths of a work-form from the forward stop-position of said carrier, and a clamp on said carrier to carry the web back, so that a slack loop in the web will be obtained when said carrier is returned to its backward position.

6. In a typewriting machine, the combina tion with a typewriter-carriage and a carbon-paper carrier, shiftable relatively to a work-web, of a revoluble platen, means for displacing the platen to ease the carbons thereon, stops for limiting the forward and backward travel of said carbon carrier, a Web-severing device at the delivery side of the platen, and a slack-measnring gage for the leading edge of the Web, said gage also serving to control the extent of relative shifting between the Web and the carbon-paper, the stroke of said carboncarrier being about equal to the length of a section or form on the Web, and the distance from said severing device to said slackmeasuring gage being about twice as great.

7. In a typewriting machine, the combination With a typewriter-carriagc and a carbon-paper carrier, shiftable relatively to a Work-Web, of a revoluble platen, means for displacing the platen to ease the carbons thereon, stops for limiting the for- Ward and backward travel of said carboncarrier, a Web-severing device at the delivery side of the platen, and a slack-measuring gage for the leading edge of the Web, said gage also serving to control the extent of relative shifting between the Web and the carbon-paper, the distance from the Websevering device to the slack-measuring gage being substantially equal to the length of the line-feeding stroke of the carbon-carrier plus the length of a section or form on the Work-Web.

JOHN VVALDHEIM.

\Vitnesses:

JENNIE P. THORNE, EDITH B. LIBBEY.

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