US766804A - Type-writer attachment. - Google Patents

Description

PATENTED AUG. 9, 1904. c. J. BELLAMY. TYPE WRITER ATTACHMENT.

APE LIOA'I'IOR FILED MAY 29, 1903.

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No. 766,804. 'PATENTED AUG. 9, 1904.

G. J. BBLLAMY. TYPE WRITER ATTACHMENT.

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Patented August 9, 190a.

PATENT OFFICE.

CHARLES J. BELLAMY, OF SPRINGFIELD, MASSAGII'USETTS.

TYPE-WRITER ATTACHMENT.

SPECIFICATION forming part of Letters Patent No. 766,804, dated August 9,1904,

Application filed May 29, 1903. Serial No. 159.265. (No model.)

To all whom it may concern:

Be it known that 1, CHARLES J. BELLAMY, a citizen of the United States,residing at Springfield, in the county of Hampden and Commonwealth of Massachusetts, have invented new and useful Improvements in TypeJVriter Attachments, of which the following is a specification.

Myinvention relates to improvements in attachments for type-writers in which an endless copying band or belt traveling with and in the direction of the motion of the platen or actuating-roller of the typewriter is employed, and comprises a collapsible support for the band or belt, peculiar adjustable mechanism therefor, such mechanism also including feed mechanism for the paper when desired, peculiar belt formation, or construction, and a combined holder and guide for the paper, if required. These and other auxiliary features hereinafter described enter into the ensemble of my attachment; but each and every one of such features need not be employed in every instance. Furthermore, diii'erent styles of type writers may require more or less modification in the number and construction of the parts of the attachment.

The objects of my invention are, first, to provide means for supporting and feeding two sheets or strips ofipaper with a copyingbelt through a typewriter which is compact and simple in construction and operation and may be adapted to any of the ordinary styles of type-writers; second, to aiford means for collapsing the copying-belt support; third, to

furnish convenient adjustable means for tensioning the copying-belt; fourth, to furnish adjustable means associated with the means for tensioning the belt to feed the paper backward when desired; iifth, to provide a suitable holder for the paper-roll and guide for the paper when required; sixth, to provide supporting means for the tilting portionof the carriage and attached members when such portion is turned up in order to prevent soiling the paper below with the copying-belt, this being needed only with type-writers having carriages the front portion alone of which tilts; seventh, to provide a copying-belt for an attachment which is adapted to impart the impression with regularity throughout the sheet or page without special care or attention on the part of the operator after the parts have been properly adjusted, and, eighth, to furnish mechanisms and devices for carrying out the objects of my invention in a practi cable, eilicient, and economical manner. I attain these objects by the means illustrated in the accompanying drawings, in whieh- Figure l is a side view of my attachment as applied to a Remington type-writer No. 7, parts of which latter are indicated by dotted lines; Fig. 2, a front view of the same, the copying-belt being omitted; Fig. 3, a perspective view of the combined guide and roll- .holder having a paper-roll mounted therein; and Figs. 4c, 5, 6, 7 and 8, views illustrating different forms of belt connections and belt construction.

Similar letters and figures refer to similar parts throughout the several views.

The upper portion of a late style of the Remington type-writer (No. 7) is outlined in Figs. 1 and 2, the carriage, only the forward part of which arranged to be lifted up, being indicated at a, the actuating 0r platen roller at 5, the platen tension-rollers at c, and the posts on thenon-tilting portion of said carriage which support the ordinary paper guide or shield at d. The frame which supports the cop yingbelt is mounted on the carriage-frame and the combined paper-guide and roll-holder on the posts; but with some type-Writers both the attachment-frame and the guide may be difi'erently mounted or located and the greater portion of the latter omitted in some cases, only enough being retained to afford means for attaching the holder to the machine. It is necessary, however, that the new members be arranged to move laterally with the carriage, except in a possible construction in which no movement of the same takes place.

In some type-writers no portion of the carriage iscapable of being raised, while in others the entire carriage can be elevated; butthe construction shown provides for a carriage which, although reciprocable as a whole, can be tilted only in part. The second example will naturally require that the guide and holder be arranged to tilt with the carriage, which is not the case in the first and third examples.

Referring again to the drawings for an illustration of a practicable embodiment of one form of my invention, it will be seen that a roller 1 is supported in proximity to the platenroller 6 by a frame comprising two rearwardly-extending feet 2, having their front ends'securely attached to the top of the front of the carriage a by screws 3 and anchor-blocks 2, and an inverted-U-shaped rod 1, provided at the ends with enlargements or bearings 5 5, which are held to the rear terminals of said feet by set-screws 6 6. One of the set-screws 6 may be omitted and an ordinary pivotal connection formed between the associated part 2 and bearing 5. Each bearing 5 has a channel therein opening through the top to receive one end of the rod t, and a screw 7 threaded through the outside of said bearing, engages said rod and holds the bearing firmly thereto. Blocks 8 8, which carry the shaft 9 of the roller 1, are perforated longitudinally to receive the vertical portions of the rod 1, said blocks being placed thereon before the bearings 5 are secured in position, and they may slide freely on such portions of the rod.

A set-screw 10, threaded through the outside of each block 8, is adapted to engage the rod 4 and retain said block at any desired elevation. Each of these blocks is provided with a forwardly-projecting ear 8 to afford a bearing for the shaft 9 and with a forwardly and upwardly extending projection 8 to serve as a bearing for the shaft 11 of a feed-roller 12. Each projection 8 has a slot 8 therein to receive one end of the shaft 11, both ends of said shaft extending through the slots and beyond the projections. Two springs 13, each attached at one end to the projecting end of the shaft 11 and at the other to a pin 14:, extending from the outside of each block 8, tend to draw the roller 12 toward the roller 1.

In addition to the usual copying-ribbon an endless copying band or belt 15 is used. This belt may be of any suitable material, as paper or textile fabric, having copying material on the outside at least and encompasses the platenroller 6 and roller 1, passing between said platen-roller and its tension-rollers and between said roller 1 and the feed-roller 12.

The belt is made of a strip which measures more than the perimeter of the belt itself, and said belt may consist of either a uniform or a composite structure, the latter distinguished by being in part of a different quality or the parts not necessarily of copying material, the same should obviously be tougher or thicker or otherwise better fitted for the purpose than ordinary copying-paper or other fabric. The surface of such part or parts should also be especially adapted in some instances for the application of adhesive material. The composite belt may be made in one piece originally and provided with the parts which are peculiarly adapted for making connections between the ends, or it may be made by attaching two or more pieces or sections of paper or fabric to the sides or ends or by utilizing two layers, one not being essential for copying purposes, while the other is essentially necessary for such purposes and may extend beyond one end of the layer which is not essentially of copying material or be of less width than the same. The different methods of constructing the belts and connecting their ends are not in reality widely different from each otner, as will presently appear. The belt 15 is preferably placed in position by uniting the ends of a strip after passing them between the associated rollers above referred to. Otherwise it would be necessary to detach the rollers from the machine and attachment. Hence the necessity of making provision for suitable attachments.

Various means of uniting the ends of the strip which forms the copying-belt may be resorted to and will later be pointed out in detail; but where a tight joint, as by gluing or sewing the ends of the belt together or attaching the end of the copying portion to an underlying flap, is formed and the joint so formed is incapable of properly transferring the impression from the type to the paper the circumference of the belt should be divisible by the line-space of the type-writer in order to have the joint come between two lines of printing, and the same is true of any joint through which it is not practicable to make a good impression. For illustration, take the case of a belt of such length thata given number of impulses imparted to the line-spacing mechanism will actuate the sheet, or page if a continuous strip is used, of paper entirely through the machine and cause the belt to make one full revolution. Then if the belt is arranged with its joint 15 (through which no satisfactory impression can well be made) approximately coincident with one or more line-spaces abovethe line where the first course of type impressions is to be made on the sheet or page accompanying said belt said joint will come around to the same point as the line-space under the last line printed on said sheet or page if the printing is carried within a line-space of the bottom thereof, at which time the rear or bottom end of the sheet or page emerges from beneath the platenroller to give place to the succeeding sheet or page. To make it clearer, it may be stated ITO Lil

that when the sheet or page passes beneath the center of the platen-roller into position for the first line the joint 15 comes against the line-space just ahead of this position or of some line-space equally distant from said line, the same relative juxtaposition eontinuing as the line-spacing mechanism is actuated until it arrives at the starting-point, when the last line will have been printed, and the sheet or page after the desired line-spacing has been done for the bottom margin will pass on and make place for its successor.

I will now proceed to describe in detail some of the modes of construction of composite belts and some of the fastening means applied to both the ordinary and the composite belts.

In Fig. 4 the ends of an ordinary belt are ment of this belt is required in order to provide a surface which will properly receive and retain adhesive material, the belt will come under head of composite.

The joint or connection shown in Fig. 5 is similar to that shown in Fig. 4:, except that common glove-fasten ers 28 are substituted for the adhesive material, said fasteners being located outside of the range of type, as before. I prefer to use two fasteners 28 at each side edge in order to make a better joint and lessen the liability of the inner flap being turned over and wrinkled in the middle when the joint passes over the rollers. In this case the female parts of the fasteners 28 are attached to the inside flap and the male parts to the of copying material, having sideor end extensions of some thicker, heavier, or tougher material, and may be of a material free from carbon or color, which does away with the liability of soiling the fingers when connecting the ends and presents suitable surfaces for theapplication of adhesive material. The ends of the composite belt may be overlapped and pasted clear across, or they may be attached at the side edges only outside of the range of type. One particular advantage of the composite belt resides in the fact that it may afford better and stronger means for connection between the ends than would other wise be available.

themselves. Hence it is possible and practicable to make them of any suitable material.

N 0 'copy is required to be, made by the side or end sections or extens1ons The absence of coloring material in these special parts of the belt renders the handling of the same more agreeable and also guards against the possibility of smutting the paper on which the original or copy is to be taken outside of the type range.

In Fig. 6 a composite belt is shown comprising the copying or carbon portion f, to the side edges of which are attached the strips g, of tougher, heavier, or stronger and not necessarily copying material, and the joint between the ends of this belt is formed by overlapping and pasting, as is done in Fig. 4:, or the fasteners shown in Fig. 5 may be applied. In this, as in the joints shown in the two preceding figures, the outside flap will belly out more or less between the points of attachment;

but this is no disadvantage if the outside flap points in a contrary direction to that taken by the belt, and, besides, the paper pretty generally holds the flap to the rollers. As a matter of fact, the amount of swell between the side edge fastenings is very slight.

In Fig. 7 the carbon part f is attached to an auxiliary layer 9, which projects at one end beyond said part, which latter projects at the opposite end beyond said layer. The over-. lapping end of the part f is pasted or glued to the under-lapping end of the layer 9', and the ends of the carbon part abut or come together. The joint may in this case be so nicely formed as to permit an impression to be made through the same; but it may be preferable to make the joint narrow enough to come between two lines of printing, in which event the circumference of the belt should be divisible by the line-space. If desired, merely a strip of strengthening material may be attached to an end of the carbon-sheet instead of forming a more or less complete layer in side of the same, to which the opposite end of said sheet is attached.

Another means of connecting the ends of the belt is shownin Fig. 8, where the carbon or copying part f has side edge strips 9 of strengthening material and a strip 7" of the same material across one end. Here the conneetion may be made in any of the ways previously explainedthat is, by pasting or gluing entirely across the belt or using adhesive material or fasteners at the side edges.

In cases where the endsare pasted or glued together intermediate of the side edges the adhesive substance need not necessarily be continuous, but may be distributed at one or more points between and at the sides.

Gluing 01' pasting between the side edges of the belt is particularly advantageous where the belt is of paper especially thin or obstinately stiff, so as not to be readily controlled by mere edge fastenings. Sewing instead of pasting or gluing may be resorted .to, especially withfabric belts, but is believed to be less practicable.

- by the belt.

Belts joined or connected by permanent fastening means, as glue, must be destroyed to remove them from the machine, while mechanical fasteners permit the belts to be removed and replaced at will.

By arranging the belt having a loose flap so that the latter points in the opposite direction to that normally taken by the belt, as before'stated, all liability of the same to catch on projectingmembers of the machine or on the rollers in what may be termed their forward motion, and thereby tearingor otherwise injuring the belt along the line of connection, is obviated. Since the loose flap is held in place by the paper being printed, as good work is done at the joint or connection as elsewhere, and it is also safe to reverse the machine under these conditions.

I do not confine myself to glove-fasteners, but may use hooks and eyes, stickers, straps and buttons, eyelets connectible with strings, and various other well-known devices.

Assuming that the belt 15 has been properly connected with the machine and attachment and the part 4 of the roller-frame normally positioned,said belt is suitably tensioned and accurately trued up by means of the blocks 8. By loosening the set-screws 10, moving the blocks 8 up or down on the rod 4, as the case requires, and then tightening said set screws, just the proper amount of strain may be given the belt. The feed-roller 12 must move with the roller 1 as the positions of the blocks 8 are changed. Hence the frictional contact between the belt and said rollers is always the same. It is usually necessary to lower the blocks when a new belt is placed in position.

To collapse the roller-frame or turn it down out of the way when not in use, loosen the set-screws 6, turn back the bent rod or part 4 with its rollers from a position which is nearly or quite vertical until it assumes a position nearly or quite horizontal, and again tighten said set-screws. The collapsed position is indicated by the broken lines A in Fig. 1. This is a very valuable feature of my invention, as it enables an ordinary cover or cabinet to be used on or with the type-writer without disconnecting the belt and the frame therefrom. A single set-screw 6 may be used, as before stated; but if so the other joint must be stiff enough to give sufficient rigidity to the structure when held in place by the one set-screw.

With this attachment it is designed to run two sheets or strips of paper through the machine with the belt, the latter being interposed between the platen-roller and the paper, so that the bottom sheet or strip will receive the original impression from the type and the other sheet or strip will receive an impression on its upper side imparted thereto The copy will necessarily read backward, or from right to left on the printed side; but if a suitable paper for this purpose is used the printing thereon can be easily read from the other side.

Although detached sheets of paper may be employed, I prefer to use continuous strips from a roll upon which two strips are wound together. WVith the particular type-writer shown it is necessary to support the paper-roll back of the machine and to furnish a guide or shield for the paper as it passes from said roll to the platen-roller. Such a guide is shown at 16 in the drawings and comprises a flat metallic body portion having its front edge curved downward and legs 17 17 depending from the under side thereof back of the aforesaid curved edge. The legs 17 are received into the hollow posts (Z on the non-tilting part of the carriage and stand at such an angle to the body of the guide 16 as to cause it to incline downward from front to back. The primary object of the guide 16 is to protect the paper from projecting parts of the machine, which might tear, soil, or wrinkle the same. Lugs 18 rise from the edges of the guide 16 to receive the corresponding parts of the bent rod 4 when the front of the carriage a is tilted up, so as to prevent the belt 15 from soiling the paper on the guide beneath. The back end of the guide constitutes aholder for the paper-roll 20, the same consisting of two upwardly and rearwardly projecting arms 21 at the sides of the guide, such arms having recesses 22 therein to receive the trunnions or the ends of the paper-roll shaft 23. One lug 18 may be used.

in order to provide a suitable tension for the paper as it comes from the roll 20, I prefer to use a rod 24, which is drawn toward the periphery of the roll by crossed elastic bands 25 and against the rear edges of the arms 21, which form stops for said rod, by the pull of the paper. Aband 25 is provided at each end of the rod 24 and passes over the corresponding end of the shaft 23 or an enlargement thereon. This tension device is the same as that set forth in an application for Letters Patent of the United States filed by me March 14, 1902, Serial No. 98,164. The two strips 26 and 27 of paper pass downward from the front of the roll 20 partly around the rod 23 over the guide 16 to the platen-roller. The upper strip 26 is for the copy and the lower strip 27 for the original impression. These strips should be divided into lengths or pages corresponding to sheets of paper of predetermined lengths by perforations or marks and after passing beneath the platen-roller and the belt 15 are conducted upward and rearward between the supporting and feed rollers 1 and 12, the printed portions being torn off from time to time as desired. WVhen the roller-frame is in its normal position, the horizontal part of" the bent rod 4t may be used to assist in tearing oil the printed portions of the strips 26 and 27.

WVith a machine which has a non-tilting or wholly-tilting carriage the lug 19 is not required.

Although the guide and holder for the paper-roll are not connected, except by the paper, with the other members of my invention, it is to be understood that they form a part of the attachment when it is necessary to use them. The operation of a machine equipped with my attachment is not interfered with, nor is it generally necessary to make any changes whatever in the machine construction, but simply to connect the attachment in substantially the manner already pointed out, which is a very material advantage. The strips 26 and 27 are actuated or drawn through the machine and fed between the rollers 1 and 12 by the line-spacing mechanism, and the operation of the different parts of the attachment while the paper is being fed and at other times has already been explained. As before intimated. both the roller-frame and the guide travel with the carriage when reciprocated; but the guide does not tilt.

, The feed-roll 12 may be omitted from the construction, if desired, since its principal office is to actuate the paper, the belt operating quite as well without as with such roller. If the roller 12 is not used, the paper is taken care of by the operator, as required.

It is plainly to be seen that a great number of different styles of belts and connecting means therefor in addition to those hereinbefore described in detail may be devised such as would naturally occur to one upon becomihg acquainted with the subject-matter relating thereto and presented herein, and I desire to include within the scope of my claims all mechanical equivalents of the improved features in belt construction. Various other changes may be made in my invention Without violating the spirit thereof, particularly 2. In a type-writer attachment, the combination with the platen-roller and a second roller, of a jointed copying-belt adapted and arranged to be supported by said rollers and to have its joint always come between two adjacent lines of printing.

3. In a typewriter attachment, the combination with the platen-roller and a second roller, of a copying-belt having a joint formed therein by overlapping and securing the ends thereof, the material adjacent such joint being of a different quality or nature from other portions of the belt, such belt being adapted to inelose said rollers in its circuit and to be supported thereby.

4. In a type-writer attachment, the combination with the platen-roller and. a second roller, of a copying-belt-forming strip which measures more than the perimeter of the belt into which said strip is adapted to be convert-- ed by overlapping one end upon the other, the material adjacent the joint formed by the overlap being of a quality or nature different from other portions of such strip, and means to attach the upper surface of one end to the under surface of the other end, the belt thus formed being adapted to inclose said rollers in its circuit and to be supported thereby.

5. In a typewriter attachment, the combination with a composite copying-strip having a non-copying end and a copying end, one of said ends being adapted to overlap the other, of means for attaching together the two ends where they lie in double thickness one upon the other, to convert said strip into an allcopying belt adapted to be supported and actuated by rollers.

6. A copying-belt for a type-writer attachment, comprising a reinforced copying-strip, the reinforcement extending beyond one end. and falling short of the other end of such strip, and means to attach the projecting end of said strip to the projecting end of the reinforcement to convert the whole into a belt having an all-copying exterior surface and being of substantially uniform thickness throughout.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES J. BELLAMY.

Witnesses:

FRANK A. Curran, MICHAEL GRIFFIN.

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