US2392522A - Typewriter attachment for manifolding - Google Patents

Description

1946. R. J. COPELAND ET AL 2,392,522

TYPEWRITER ATTACHMENT FOR MANIFOLDING Filed Feb. 1, 1943 2 Sheets-Sheet 1 Jan. 8, R, J COPELAND ET AL TYPEWRITER ATTACHMENT FOR MANIFOLDING Filed Feb. 1, 1943 Shets-Sheet 2 lure/7101".

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Patented Jan. 8,1946

TYPEWRITER ATTACHMENT FOR, MANI- FOLDING Bobert J. Copeland, Toronto, Ontario, and Ernest J. Bloore, Brampton, Bloore assignor to said Ontario, Canada; said Copeland Application February 1, 1943, Serial} No. 474,388

4 Claims. (01. 197-126) The principal objects of this invention are to provide a manifold attachment for typewriters which will greatly facilitate the work of the stenographic operator in duplicate billing, and to devise an apparatus which may be easily and 'quickly attached to the typewriter carriage so as to operate in unison therewith and which will carry both the duplicating carbon and the continuous form sheet for various purposes.

A further object is to devise an apparatus which will be arranged in close operating relation to the'typewriter and will not impose any extra load upon the rolling supports of the typewriter carriage.

A still further object is to provide a means for carrying the special duplicating carbon so that it will feed uniforml and may be easily and quickly interchanged.

The principal feature of the invention consists in the novel construction and arrangement of a; vertical frame having horizontal trackways supporting a carriage carrying a pair of rollers upon which is mounted the carbon strip which extends around the typewriter platen, said carriage also carrying the continuous-form duplicator c'opy sheet.

A further feature of importance consists in the novel arrangement of an adjustable friction clutch drive connection between the paired roller supports for the duplicator carbon.

In the accompanying drawings Figure 1 is a perspective view of our improved duplicator attachment connected with a typewriter.

Figure 2 is an end elevational view of the device illustrated in Figure 1.

Figure 3 is an enlarged part sectional front elevational view of the duplicator attachment.

Figure 4 is an enlarged part sectional end elevational view of the attachment shown in Figure 3.

Figure 5 is an' enlarged vertical sectional view of the inter-connecting gearing between the carbon roller supporting spindles.

In-the form of apparatus herein shown, a baseboard I is preferably provided on which the typewriter 2 is to be placed. Mounted on the board I are a pair of inter-connected standards 3 in which are adjustably mounted the bars 4 which are preferably rectangular in cross section and are vertically slidable in the standards 3 and are secured in adjusted relation by set screws 5.

The upwardly extending ends .of the bars 4 are bent into a Z shape and the upright extremities 6 are rigidly secured to a frame 1 which is supported in a vertical position with parallel bar portions '8 and 9 arranged at the top and bottom. These bars are formed with longitudinal V.-

shaped grooves 8' and 9' in the upper and lowerv surfaces respectiv'ely.

' A triangular-shaped frame I I0 is arranged immediately to the rear of the frame I and has mounted thereon adjacent to the top bar II a pair of rollers I2 which are formed with a bevelled periphery I3 tofit in the V-shaped groove 8', and a single roller I4- similar to the rollers I2 is eccentrically mounted at the lower apex of the frame III and its bevelled periphery engages the groove 9' in the lower horizontal bar 9 of the frame 'I.

The frame 'I is thus mounted on a roller support and is held securely in its vertical position by the upper and lower rollers engaging the frame I.

A flat bar I5 is integrally connected to the top bar II of the frame I and mounted upon one end thereof is an angle bracket I 6 which extends vertically upward therefrom, said bracket being formed with lower and upper bosses I1 and I8 and an intermediate boss I9. Spindles 2'0 and 2| are journalled respectively in the bosses I1 and I8 and these extend parallelly spaced above the bar I5. The spindle 2I extends through the boss I8 and mounted on the extension end 22 of the spindle 2| is a spur gear 23 which is rigidly secured thereon.

A knurled knob 24 is mounted on -the outer extension end 22. The spindle 20 extends through the boss I1 and the extension end 25 thereof has loosely mounted thereon a spur gear 26 which is preferably formed with a circular recess 21 in the outer face.

A flanged sleeve 28 having a friction surface- 29 engaging the base of the recess 21 is slidably but non-rotatably mounted on the extension 25 of the spindle 20, being held from rotation by a pin 30 extending through a slot 3| in the spindle. Th outward end of the spindle extension 25 is threaded, and threaded on this extension is a. flange nut 32. A coil compression spring 33 extends over the sleeve 28 engaging the flange thereof and the outer end of this spring is engaged by the nut 32. By adjusting the nut on the threaded spindle the pressure of the spring against the flanged sleeve may be varied.

A knurled knob 34 is fixedly secured on the I9 and on this bolt is rotatably mounted a spur ear 36, which is preferably of fibre and meshes 'grap originally mounted on one of the sleeves 43, is

with the gears 23 and 26, so that upon the turning of the knob 24 or 94 the -motion will be transmitted through the gear 88 from one spindle to the other.

It will be noted however that the gear 26 is loosely mounted on the spindle and any motion imparted to this gear will-be applied to the spindle through the medium of the friction clutch formed by the flanged sleeve '28.

A casing 31 is arranged to enclosethe gearing described and is secured in position by the bolt 35. 1 1 7 Tapered hubs 38 and 39, each formed with lateral flanges, are threaded on the spindles 20 and 2| respectively, and these engage in rotative contact with the ends of the bosses l1 and I8.

Similarly formed hubs 49 and 4| are threaded on the outer threaded ends of the spindles 25- and 2| and lock nuts 42 are threaded outside of each of these hubs to secure them in adjusted positions. I

Tubular sleeves 43 are mounted between the opposing tapered pairs of hubs and these sleeves form the cores upon which are mounted the opposite ends of a length of carbon paper 44 which is preferably of a special type, known as Hecto- This length of carbon paper, which is carried outwardly from the sleeves over the paper guide 45 of the typewriter 2 which is placed upon the baseboard l adjacent to the standards 3, and, being carried around the platen 41 of the typewriter, its end is secured tothe upper tubu-' lar sleeve 43.

The carriage formed by the frame Ill, mounted on its roller supports as described, is connected to the typewritercarriage 48 by an adjustable trunbuckle rod 49, which is pivotally' connected at one end to a bracket 50 mounted on the top bar l of the frame l9, and the other end of the rod 49 is plvotally connected to a bracket 5| to which is pivotally secured a clamp member. 52 which may be secured to any suitable portion of the typewriter carriage, and by -means of this adjustable rod connection between the frame In and the typewriter carriage, movement of the carriage is imparted. to the roller-supported frame carrying the carbon sheet, and adjustment may be made by means of this turn-buckle rod to bring the carbon sheet into proper alignment with the typewriter platen.

Secured to the outward side of the frame I!) is a pair of flat vertical bars 53 which extend downwardly and are bent outwardly and' upwardly to form a basket-like receptacle connected by a U-shaped bar 54 at the top and in which the dual continuous-form sheet 55, upon which the invoices or other records are to be made, is placed. This dual sheet extends from the basket container beneath the ,lower carbon sheet roll and is threaded between the typewriter paper guide 45 and the under portion ofthe carbon sheet loop and thus passes with said car- -bon sheet, around the platen of the typewriter.

The outward sheet of the dual form is printed upon directly by the typewriter and a reverse impression of the type is made on the secondary sheet by the carbon sheet against which it lies. Thus an originalrecord sheet and a reproducing carbon are made on separate sheets at the same time, the reproducingcarbon being utilized in making multiple copies in a suitable form of duplicating machine.

It will be understood that as the typewriter .is operated the carbon sheet is drawn from the I full roll carried by the frame l9 and it is wound up upon the adjacent roll and as the carbon winds up on the secondary roll and winds from 5 the primary roll, there will be a variation in the diameter of the respective rolls. This varia- "tion is accommodated by the slip connection provided in the friction clutch mounted on the spindle 20, and the friction may be adjusted to suit the conditions that may be found to exist -with the paper and carbon being used by manipulating the tension nut 32 on the threaded extension 25 of the spindle 29.

Further, it will be understood that the operator may adjust either of the spindles and the roll of carbon mounted therein by means of the knurled nuts 24 and 34 mounted thereon.

It will be understood from this description that, as the carriage formed by the frame ID on its roller support is arranged vertically immediately behind the typewriter, there will be a minimum of length of the carbon sheet between the supporting roll and the typewriter carriage. Furtheffi-the support of the continuous-form sheet to be typed upon is arranged close to the wheel supports of the frame and the device will not be out of balance and it will therefore operate with the minimum of friction, and as same is close-coupled directly to the typewriter carriage the movement of the carriage in the normal operation of the typewriter will not be impeded, and the carriage may operate freely in raising and lowering in shifting from upper case to lower case keys without any extra load, as the entire weight of the carbon rolls and the supporting mechanism is carried on the rigid guide-frame l, the turnbuckle rod 49 being free to swivel with the upand-down movement of the carriage:

I It'will be seen that the frame 1 may be adjusted in height by raising and lowering the support rods 4 mounted in the standards 3.

The device is very compact and of simple and durable construction and can be readily adapted I for use with any standard malie of typewriter.

It will be noted that the carbon roll carrying spindles are supported entirely from one end and that it is merely necessary to remove the lock nuts and hubs and 4| in order to remove and replace the carbon roll. v 5 Further, it will be understood that after the carbon sheet has been unrolled from one of the sleeves 43 it may be rolled back for further use by means of the knurled knob on the spindle of the roll.

What we claim as our invention is: 1. A manifold attachment for typewriters, comprising a vertical frame having parallel horizontal trackways, a movable frame arranged parallel with the aforesaid frame and having rollers engaging said trackways, means connecting said movable frame to the carriage of the typewriter for movement therewith, a rigid bracket extending upwardly from the movable frame, a pair of spindles parallelly mounted at one end in said bracket, rollers secured on said spindles for supporting a length of duplicating paper to be looped about the platen of the typewriter, a spur gear rigidly secured on the end of one of the spindles extending through the bracket, a spur gear mounted on said bracket and meshing with the aforesaid gear, a spur gear loosely mounted on the,other of said spindles and meshing with the intermediate spur'gear, a friction clutch mounted on the spindle carrying the loosely mounted spur gear, and means for adjusting said friction clutch.

2. A manifold attachment for typewriters as claimed in claim 1 in which the friction clutch comprises a flanged sleeve slidably and non-rotatably mounted on the spindle carrying the loosely mounted gear wheel, a friction surface carried by said flanged sleeve engaging the rotatably mounted gear wheel, a coil spring engaging said flanged sleeve, a nut threaded on the spindle carrying the loosely mounted gear to adjust the compression of said coil spring, and-means for turning said spindles.

3. A device as claimed in claim 1 having cone flanges spaced apart and mounted on each of said spindles, sleeves mounted between said cone flanges adapted to carry the length of duplicatlng paper, and lock nuts threaded on the outer ends of said spindles to engage the outermost cone flanges to hold them in locked position carrying the duplicator strip supporting sleeves.

4. A manifold attachment for typewriters, comprising a vertical frame formed with an up- ,per horizontal bar and a lower bar parallel therewith, a movable frame arranged parallel with the aforesaid frame having rollers engaging said ,upper and lower bars and supporting and guiding the movable frame, a paper holder carried by said movable frame, means carried by said movable frame for supporting a length of duplicating paper to be looped around the platen of a'typewriter, an arm pivotally mounted on said movable frame to swing in a plane substantially parallel to a plane defined by the upper and lower bars thereof of the movable frame, and pivotal means connected to the free end of said pivotal arm adapted to be connected to the carriage of a typewriter.

ROBERT J. COPELAND. ERNEST J. BLOORE.

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