US1738674A - Typewriting machine - Google Patents

Description

J. A. B. SMITH TYPEWRITING MACHINE Dec. 10, 1929.`

Original Filed Jan. l2. 1925 /m/enfor:

Patented Dec. I, 1929 UNITED STATES JESSE A. B. SMITH, OE STANFORD, CONNECTICUT, ASSIGNOR 10 UNDERWOOD ELLIOTT PATENT i orificel FISHER COMPANY, OF NEW YORK, N.` Y., A. CORPORATION OF DELAWARE TYPEWRITING MACHINE This-invention relates to typewriting machines of the variety set forth in the patent to Wernery and Smith, No. 1,132,055, dated March 16, `1915, in which work-sheets or printed forms may be fed to the machine in succession as elements of a fan-fold web, which may be led into the machine and passed downwardly, forwardly, and up around the revoluble platen, and in which carbons may be interleaved between the elements of the fan-fold web or between the loose plies of other work-webs. As disclosed in said patent, the platen is displaceable to permit the webs to be straightened out, so that the carbons may be readily shifted back along the plies of web to unused portions thereof.

In using this machine to turn out a variety ot' work, it is sometimes desired to have assembled, ready for'immediate use, a plurality of fan-fold webs with a plurality ,of carbon-carriers, so that typewriting can be done upon either set of webs, at will, and, for this purpose, it has been the practice to provide carbon-carriers which are readily detachable from the machine,'so that, when it is desired to stop typing on one set of webs, it may be removed from the machine, together with the associated carbon-carrier, and the other carbon-carrier with the other set of webs may be placed in the machine to receive the typing.

In this invention means are provided to facilitate writing alternately upon each of a plurality of web sets having sectional forms defined by transverse perforated lines, and especially upon two webs which are simultaneously fed around the platen of the machine in fan-fold form.

According to the present invention, a widecarriage machine may be readily adapted,

Vwith little or no alteration thereof, to use two webs which may be kept in the machine side by side, and-which may be typed upon alternately, or one of which may be used while the other is left idle.

A feature of the present invention is the provision of means readily applicable to a carbon-ca1rier of standard construction without necessitating any changes thereon, to enable said'carbon-carrier to accommodate two i Original Aapplication filed January 12, 1925, Serial No. 1,755. Divided and this application ld November 16, 1927.

serial No. 233,560.

separate sets of fan-folded webs for use, side by side, in a typewriting machine.

For this purpose, carbon-holding blades of various lengths are provided, said blades being supported onlyat the .ends of the carbon-'carrier and some of said blades extending `substantially across the entire length of The two parallel work-webs, having a plurality of plies, are inserted in the machine by interleaving the plies of the web with carbon-sheets fastened to co-operatin carbonpaper clips. The leading edges ci the two webs are fed over a rear table, then down around the platen to engage with co-operating feed-rolls and up in front of the platen over a front table.4 One of the work-webs may then be ty ed upon and line-spaced step construction can be used for two adjaby step. The p aten is then swung forwardly in the ordinary way to straighten out the webs, and to draw up the active web to its corresponding leading-edge gage; of whlch there are two, one for each work-web, so that the carbon-sheets interleaving 'the typed or active web may be backed up into a new portion covering a fresh section of said web. In order to move the carbon-sheets rearwardly, it will be necessary to hold the leading edge of the typed or active web against the gage, otherwise the friction .of the carbon-sheets against the leaves of the web would move'the web along to the rear when the carbon-car-A riage and the carbon-sheets are moved backwardly.

It will be noted Vthat both the idle and the active webs are simultaneously line-spaced whiletyping upon the active web. When the typing upon the active web is completed, the platen is displaced, and the leadmg edge of the active web is drawn up to if s correspond- '5 to the friction of the paper-clips and carbonsheets interleaving the plies of the web. It will be noted also that while the carbons are retracted the active web is held with one hand against the gage while the idle web is left free to follow the 'carbons.

When the platen is lowered to-its normal or eective position, the leading edge of the idle web has a tendency to shift out of place, and, in order to control the web whilethe platen is moved, there is provided a clamp to effectively hold the webs against the table. p

This application is a division of my application, Serial No. 1,755, iled January l2, 1925, now Patent No. 1,653,025, dated December 20, 1927.

Other features and advantages will hereinafter appear. 1

Inl the accompanying drawings,

Figure 1 is a-perspective view of a fanfold machine with the invention applied ther'eto. y i Figure 2 is a -diagrammatical view of the work-webs shown in connection withithe carbon-carrying frame having end supports 30 only.- l f Figure 3 is a cross-sectional view in eleva.-

. tion showing the carbon-carriage in its rearward position with the platen-frame swung forwardly in its displaced position.

In the Underwood fan-fold'typewriting machine, a platen is journaled ina swing frame which includes end journaled to a front sha 13, extending across the platen-carriage, so that the platen may be swung forwardly in line with the work-web on thevfan-fold tablefand clear of the feed-rolls 14 and 15 which' usually cooperate with the platen for feeding the workweb in line-space direction. The platen is shown geared to the line-space mechanism,

' which includes a line-space lever 16, by means of pinions 17 fast on the axle 18 of the platen,

said pinions meshing with idlers 19 on the front "shaft 13, which idlers, in turn, mesh with "pinions 20 fast on the shafts 21 which carry finger-wheels 22 for operating the platen, and are ournaled in platen-frames 23.

The platen-carriage is mounted' upon rails including the rail 24 and is fed along in the usual manner whenever any type-bar 25 rises to print upon a work-sheet passed around the platen. The fan-fold machine also usually includes a rear extension of the carriage having rails 27-and 28, upon which a carbon-carriage 30 is-adapted to be reciprocated by a handle 31. Said rear extension also includes a cross-bar 29 connecting the rails 27 and 28, which support the cross-bar 33 over which the initially fan-folded complemental webs 34 65 and 3.5 are drawn past the carbon-carriage 30 lates lland 12, A

and under the platen and up over the front` table 40. For supporting therear extension there may be provided wheels 26 operatively vmounted upon a rail 39 fast upon a rearoperatively guide the carriage 30 on the rails 27 and 28.

. Vhen the work-webs 34 and 35 are initially fed to the machine,'they are passed over the rear cross-bar 33, between paper-guides 41 and 42, and between carbon-finger-carrying frames or mounts 43 on the carbon-carriage 30,' the webs being interleaved with carbonsheets 30a. lVith the leading edges of each web in alignment, the webs'are inserted between the knife and the platen, when the latter is in its displaced position, so that a considerable portion of each web will extend forwardly therefrom, and, when the platen is returned to its normal or effective position, the leading edges will be above the knife. The platen is then reversely rotated to simultaneously back-feed bothwebs until the leading edges thereof coincide with the cutting edge of the knife, when typing upon either web can 'take place.

Supporting guides 45 and 47 are detachably mounted upon the front table 40, and slidably and adjustably mounted upon the guides are leading-edge gages44 and 46 respectively, one for each web.

While the necessary data is being typed upon one of the webs, 34 for example, and line-spaced, it will be understood that the other or inactive web 35 will also be linespaced.-

Aftertyping the data, the platen is swung forwardly to straighten out the webs, by releasing the latch 48, so that the carbon-sheets 30a interleaving the active web may be backed up into a fresh section of the web. Since it is customary to write but a few lines on each web, it very seldom occurs that the leading edge is `fully line-spaced to its corresponding gage. With the platen in its displaced position, the leading edge of the active web is therefore brought up to its gage, said web moving relatively to the interleaved carbonsheets. In ,order t'o withdraw the carbonsheets, the leading edge of the active web is held with one hand against the gage while the carbon-carriage is moved rearwardly to the stop 83 by pushing the handle 31. While the carbons are moved rearwardly, the idle web is also moved along due tothe friction of the cai-bons against the several plies-of the web, the idle web being free to move along with the carbons while the active web is held during the displacing of the carbons. The carbon-carriage stop 83 is so positioned'that when the carriage is brought up to said stop, the leading edge 64 of the inactiveweb will project beyondthe knife 67, as shown in Figure` 3. Furthermore, the leading-edge gage 44 1s so adjusted that when the active web is pulled up thereto, the perforations of the' to the leading-edge gage will be greater than a sectional printed form of a ply by the distance the leading edge of the inactive web projects beyond the knife.

In order that, when the-platen is lowered toits normal or effective position, the webs may not be accidentally shifted out of place, there is provided a clamp designed to hold the webs fast against the front table 40. Said clamp including a cross-bar 49 pivotally mounted upon the shaft 13 by means of brackets 50 which form an integral part of said clamp and are rotatably held on the shaft 13-by means of pins 5l. The clamp is provided with a pin 52 which forms an integral part of a handle 53-for operating the same, and the pin cooperates with a latch 54 pivotally mountedupon the frame 12 at 55 and is held by a spring 56 against a pin 57 A also fast to the frame 12. As shown in the drawings the clamp is provided with means whereby websof dierent thicknesses may be eil'ectively clamped, said means including a plurality of resilient plugs 585 fast to the' cross-bar 49 and a iexible piece 59 connecting the clamp and the latching means. The latch 54 is opera-ble by forcing the same rearwardly away from the pin 52 to release the clamp. kIt will be noted that the leading edge 64 of the idle web is shown displaced relatively to the leading edge 65 of the active web, the latter being held when displacing the carbons, while the former ispermltted to move rearwardly with the` carbons. The clamp is moved to its effective position by lifting the handle 53 from its Figure 3 position, until the pin 524 engages the latch 54 and resiliently holds the webs clamped against the table 40. The platen is then thrown backwardly to a position as shown Vin Figure l in which the usual pin engages the latch 48 and holds the platen against the feed-rolls. The latch 54 is then released by forcing the same rearwardly 'so that the clamp may be swung forwardly to a position as shown in Figure l.l To bring the aligned leading edge of the inactive web and the bottom perforated line of the typed sectional form of the active web against the cutting edge of the knife, the platen is rotated in a reverse direction to back-feed both webs simultaneously, whereupon, the typed signed, in the preferred form, to be detacht ably mounted upon the carbon-carriage 3Q,

To this end there is provided an adapter' V plate 69 which is secured to the carriage 30 by means of the regular clamps 70 engaging slots 71 in pins 72 which form an integral part of the plate 69 and fit into holes 7 3 in the carriage 30.

According to the present invention, the

two sets of webs in themachine are provided with interleaved carbons, carried by a carbon-carrier so constructed that the stock parts in theregular fan-fold machine can be used with little or no alteration thereof. r1`he carbon-carrier has alternately disposed long and short carbon-clips or blades respectively numbered 89 and 90, both kinds of clips being fastened at the regular outer supports or frames 43 and having no support in the center. The two end supports arefast to the plate 69, as on the standard carbon-carrier and which is in turn attached to the carriage 30 in the regular manner. rIlhe sets of wens are fed between the outer supports and some of the carbon-clips extend'from one of the end supports entirely across the adjacent web for providing the other web with interleaved carbons, so that by proper arrangement of the long and short carbon-clips, a stock carbon-carrier may be used. For guiding the inner edges of the sets of webs, there is provided a special web-gage 92 at the center fastened to the plate 69 by means of a screw 94, and at the ends the web is guided by the regular gage in the fan-fold machine indicated by numeral 8l throughout the several views.

It will be noted that the folds of the webs are not slit by the usual cutters on the blades, but that the typed fan-:fold is severed from the web as a folded unit, which is a preferable mode of operation for some classes of Work; and that the elimination of the usual cutter brackets for short blades along the inner edges of the webs, renders the carboncarriage universal for any Width of web or the joint use of two webs side by side, by an interchange of the carbon-carrying blades.

frames at the outer ends of said base-plate, A

and carbon-blades of various lengths, each supported at one end on one of said frames, the shorter of said bladesextending substantially half the distance between said frames While the longer of said blades extend substantially the entire distance between said frames.

2. In a machine for typing upon two .fan-

vfold webs which are placed 'in the machine carriage, of a frame on each side thereof, and

a plurality of inwardly-extending carbon,

carrying blades, each blade detachably mounted at one'end upon one ofv said frames, said plurality of carbon-blades including long and short blades, each long blade extendingv across thev web adjacent its supporting frame and carrying a carbon at its outer end and interleaved between the plies of the other web, and each shorter blade carryingia carbon interleaved between the plies of the web adjacent its supporting frame.

3. In a typewriting machine, the combination with types and a carriage having means for presenting/and feeding fan-fold webs side by side to a platen, of a double-width carboncarrier on said carriage, said carbon-carrier having at one side mounts for short and long blades extending transversely of the carrier, and said carrier also having upon the opposite side mounts for short and long blades extending oppositely transversely of. the carrier, allv of said short and long blades carrying carbons, some of the carbons being interleaved with the pliesof one web and other carbons being interleaved with the plies of the other web, the set of blades extending from one side of the carrier being at a higher elevationthan those extending from the other side ofi-the carrier to give clearance, and the webs traveling A through the machine at correspondingly different elevations.

44. In a typewriting machine, the combination with types and a carriage having means for presenting and feeding fan-fold webs side by side to a platen, of a double-width carbon-carrier on said carriage, said carbonc-arrier having-at one side mounts for short and long carbon-blades extending transversely of the carrier, and said carrier also having upon the opposite side mounts for short and long carbon-blades extending oppositely 4transversely of the carrier, the long blades on one mount cci-operating with the short blades on the other mount to form a tierA of web-supplying carbons at both sides of the carrier, one tier of carbons for each web.

5. In a typewriting machine, the combina.- tion with types and a carriage having means for presenting and feeding fan-fold webs side by side to av platen, of a. double-width carbon-carrier on said carriage, said carboncarrier havingat one side mounts for short and long carbon-blades extending transversely of the carrier, and said carrier also having upon the opposite side mounts for short and long carbon-blades extending oppositely transversely of the carrier, the long blades on one mount interposed between the short blades on the other mount to form a set of carbon-supplying blades and interleaved as a set between the folds of a web.

6. In a typewriting machine, the combinao tion with types and a carriage having means `for presenting and feeding fan-fold websv carbon-carrier onsaid carriage, said carboncarrier having at one side mounts for short and long carbon-blades extending transversely of the carrier, and said carrier also having upon the opposite side mounts for short and long carbon-blades extending oppositely transversely of the carrier, the long blades on one mount interposed between the short .y

blades on the other mount to forma set of carbon-supplying blades and interleaved as a set between the folds of a web, one set of. carbon-supplying blades disposed at a higher elevation than the other set of blades to give. clearance between each web and the other set of blades.

7. In a typewriting machine for presenting.

and feeding two unslit fan-fold webs side b-y side to a platen, the combination with a double-width carbon-carriage having mounts at each side of the carriage, of inwardly-projecting long and short carbon-carrying blades arranged in sets for supplying carbon tov each web, each carbon-blade secured aton'e end to one mount, the co-operation of alternate long vand short blades from each side mount being effective as a set to insert carbons within ea'ch web without slit-ting the folds of the webs, the i and feeding two unslit fan-fold webs side by side to a platen, the combination with a dous ble-width carbon-carriage having mounts at each side of the carriage, of inwardly-proj ecting long and short carbon-carrying blades arranged in sets for supplying carbon to each web, each carbon-blade secured at one end. to one mount, the co-operation of alternate long a`nd`short blades from. each sidev mount being effective as a set to insert carbons within eachl web without slit-ting the folds of the webs, one web raised to ra higher elevation than the otherwweb to allow the long blades to bridge an adjacent web to reach the other web',

9. In a typewriting machine for presenting and feeding two unslit fan-fold webs side by side to a platen, the combination with a double-width'l carbon-carriage having mounts at each side of the carriage, of inwardly-projecting long and short carbon-carrying blades arranged in sets for supplying carbon to each web, each carbon-blade secured at one end to one-mount, the co-operation of alternate long and short blades from each side mount being effective as a set to insert carbons within each web without slitting the folds of the webs, one web raised to a higher elevation t-han the other web to allow one set of long blades to pass over one webfand the other set of longblades to pass under the other web,

to avoid a web-slitting operation for the j blades.

JESSEk A. B. SMITH.

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