US1964802A - Typewriting machine - Google Patents

Description

July 3, 1934. J. PHELPS 1,964,802

TYPEWRITING MACHINE Filed April 26, 1930 3 Sheets-Sheet l ATTORNEY July 3, 1934. J. PHELPS TYPEWRITING MACHINE Filed April 26, 195o 3 Sheets-Shea?l 2 WITNESSES ATTORNEY July 3, 1934. J. PHELS 1,964,802

TYPEWRITING MACHINE Filed April 26, 1930 5 Sheets-Sheet 5 WITNESSES NVENTOR ATTORNEY @Mfa 0% @W Patented July 3, 1934 PTET OFFICE TYPEWRTHNG MACHINE Joseph Phelps, Stamford, Conn., assigner to Remlngton Typewriter Company, Ilion, N. Y., a corporation of New York Application April 20, 1030, Serial No. 447,507

Claims.

My invention relates to typewriting or like machines and more particularly to card feed mech anism therefor.

The main object of my invention, generally 5 stated, is to provide comparatively simple yet highly effective mechanism of the character specied, capable of rapid use with cards that vary in size and character but particularly adapted for handling cards provided with projections or tabs within the outline thereof by which the cards may be connected one with another in given relation. In the employment of the devices of my invention in connection with such cards the tabs are protected and cannot be torn or mutilated by fouling on parts of the machine during the feeding of the cards.

A further object of my invention is to provide mechanism of the character specified that may be readily introduced as attachments to existing typewriting or like machines withoutmodifying, or materially modifying, the existing structural features thereof.

A still further object of my invention is to provide a card clamp cooperative with and adapted to protect the tabs on cards of the character specified and to provide means whereby said clamp may be readily detached Vfrom the platen to condition it for ordinary use when desired.

To the above and other ends which will hereinafter appear my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in theY following description and particularly pointed out in the appended claims.

in the accompanying drawings wherein like reference characters indicate corresponding parts in the diierent views- Fig. l is an enlarged end elevation, with parts in section, of the carriage of a typevvriting ma- '10 chine equipped with the devices of my invention.

Fig. 2 is a fragmentary, sectional view of the same taken on the line 2 2 of Fig. 1 and looking in the direction of the arrows at said line.

u Fig. 3 is an enlarged, detail, fragmentary, end lo elevation showing a portion of the construction represented in Fig. 1, but with the actuating llan-4 dle limited in its return movement' to normal position and operatively connected with the platen.

`liig. 4 is an enlarged, detail, fragmentary, end view of the devices by which the card holder is connected to the platen at one end thereof.'

Fig. 5 is a like view of same at the other end of the platen.

Fig. 6 is a fragmentary, sectional view taken (Cl. E37-136) through the card holder locking means at one end of the platen.

Fig. 7 is an end View of the parts looked at in the opposite direction from Fig. 3 and showing the handle disconnected from the platen and held 6o in its normal position by the spring detent.

Fig. 8 is a detail, perspective View of the card clamps shown detached with a card in place therein.

Fig. 9 is an enlarged, detail, fragmentary, sec- 65 tional view showing a card abutting at its lower edge against a part of the card holder and held in place by the overlapping shield.

Figs. 10 and 1l are side views of the plates which carry the arresting stops for the platen actuating handle.

I have shown my invention embodied in the present instance in a No. 6 Remington Noiseless typewriting machine in which the devices of my invention may be readily incorporated without modifying, or materially modifying the existing structural features of said machine. It should be understood, however, that my invention is applicable to typewriting or like machines generally and may be incorporated in many different makes of such machines with more or less facility.

The carriage of machine in theV present instance comprises a supporting cross bar 1 grooved on opposite faces at 2 to form race-ways to receive anti-friction rollers 3 on which the carriage is supported for movement from side to side of the machine in its step by step letter space movement. The supporting rollers 3 are likewise Vreceived in oppositely disposed grooved faces or race-ways 4 of a carriage supporting member 5 9-0 which constitutes part of the case shift frame. The carriage further comprises end plates 6 secured to the cross bar 1 near the ends thereof and in bearings in which end plates a cylindrical platen 7 is supported to rotate. The right-hand end of the platen is provided with a spindle 8 that is received in a bearing bushing 9 seated in an opening in the right-hand end plate 6 and provided with a headed portion 10. The outer end portion of this spindle 8 is threaded to coact with an interiorly threaded hub 11 xed to the righthand finger wheel l2 for the platen. When the hub ll is screwed into position on the spindle 8 with the inner end of the hub bearing against the head 10 of the bushing 9, a screw 13 is threaded into the interiorly threaded portion of the hub il and bears at its inner end against the spindle 8 thus locking the hub and nger wheel xedly to the spindle 8 to rotate therewith.

This is the usual form of construction employed 110 in the No. 6 Remington Noiseless typewriting machine and is availed of in the present instance for mounting devices of my invention thereon.

Surrounding the hub 11 is a hub 14 oi a locking wheel 15 provided with teeth 16 with interdental, angular locking recesses 17. A spacing sleeve 18 surrounds the hub 14 of the locking wheel 15 and is secured to said hub 14 by a set screw 19. A crank arm 20 has its hub-like bearing end pierced to provide a bearing seated on the hub 14 so as to turn freely thereon around the axis of the platen. This crank arm is held in position between the inner end of the spacing sleeve 18 and the wheel 15. A finger piece or handle 21 is provided on the crank arm by which it may be manipulated by the operator to turn the platen a limited extent between two relatively adjustable stops which limit the motion of the crank arm and platen, as will hereinafter more clearly appear.

The limiting stops just referred to are formed as parts of two plates 22 and 23 respectively shown detached in Figs. 10` and 11. A projecting nger 24 on the plate 22 constitutes one of said stops for limiting the motion of the crank arm in one direction, whereas a face or abutment 25 on the other plate 23 constitutes a stop for limiting the motion of the crank arm in the opposite direction. The plate 22 is pierced at 26 to provide a bearing for the plate 22on the head 10 of the bushing 9. The plate 23 is pierced at 27 to provide a bearing opening to receive the inner end portion of the hub 11 of the finger wheel 12. It will be seen, therefore, that each 'of these plates is adjustable to a limited extent around the axis of the platen.

In order to uphold each of the plates in its adjusted position there is provided an arc-shaped slot 28 in the plate 22. Said slot receives the stem of a headed screw 29 that is received at its threaded end in a tapped opening in the end plate 6 of the carriage. A washer 30 is interposed between the head of this screw and the face of the plate 22, thus holding the plate rmiy in its adjusted position when the screw 29 is tightened, but affording a limited extent of adjustment of the plate 22 when the screw 29 isA backed up. In a like manner the stem of a screw 31 passes through a slot 32 in the plate 23, the stem of said screw being received in a tapped opening 33 in the plate 22. The plates 22 and 23 are mounted in position between the wheel 15 and the adjacent end plate 6 of the carriage,

From anv inspection of Figs. 1 and 2 it will be seen that a slot 34 extends longitudinally of the crank arm 20 and receives the unthreaded, shouldered portion of two headed screws 35 and` 36. The two screws at their threaded end portions are received in tapped openings in a locking member or slide 37 and are fixed thereto to move longitudinally of the crank arm 20 in the slot 34. The screw 36 is extended inwardly beyond the locking member 37 to provide a stop pin 36a adapted to co'act with the stops 24 and 25 on the plates 22 and 23 respectively to limit the throw of the crank arm 20 in opposite directions. The inner end of the slide or locking member 37 is provided with a tooth 38 adapted to engage in any of the interdental spaces 17 in the locking wheel l5 and thus eect a locking connection between the crank arm 20 and the locking wheel which is secured to and rotates with the platen. When, however, the slide 37 is moved upward along the crank arm 20 to the releasing position, as shown in Fig. 7.

A the tooth 38 is drawn out of engagement with the locking wheel, so that at this time the platen is free to rotate independently of the crank arm.

In order that the crank arm may be retained in normal position when it is disengaged from the locking wheel, I have provided a spring detent for engaging the crank arm or the locking member 37 as clearly shown in Fig. 7. From a consideration of this iigure it will be seen that the stop-like end 36a of the screw 36 is adapted to coact with an inclined edge or face 39 on the plate 23 as the crank arm is shifted to normal position with the locking member 37 in its released position where it bears against a stop face or edge 40 on the plate 23. In this position of the parts the pin 36=1 is received in a slight depression 41 in the plate 23. By forming a cutout 42-43 in the plate 23 there is sufficient resilience provided at that portion of the plate which is engaged by the pin 362t in the Fig. 7 position to provide a spring detent which tends to hold the crank arm against accidental displacement from the Fig. 7 position, as well as to maintain the locking member 37 disengaged from the locking wheel. This detent is intended for use when the card feeding devices are to be thrown out of operation and the machine is to be used for ordinary work. Preferably, the depth of the recess 41 is sufficient to hold the crank arm 20 against accidental displacement without, however, causing said arm to exert a braking action against the platen. In order to provide for maintaining the locking member 37 against accidental displacement either from or to its locked position, I provide a spring friction detent 44 which is in the nature of a leaf spring bifurcated at each end to straddle the stem of the adjacent screw 35 or 36 and to bear outwardly at the ends against the heads of said screws whereas the intermediate, centrally disposed portion of the leaf spring bears against the body portion of the crank arm with suiiicient friction to maintain the locking member 37 in either position to which it may be shifted longitudinally of the crank arm 20.

With the aid of the crank arm, the platen may be shifted forward and backward a predetermined extent depending on the relative adjustment between the plates 22 and 23 and the stops carried thereby with which the stop pin 36a coacts. The object in turning the platen forward and backward in the manner hereinbefore set forth is to position the platen to receive a card in a denite predetermined relation to the platen and then return the platen backward to bring the card secured in position on the platen to a definite position with reference to the printing line, so that printing in a predetermined deiined position on the card, usually a single line near the top thereof, may be accurately effected. The printed card may then be withdrawn and the platen rotated forward in a position to receive a new card accurately located with the aid of the card clamp as will hereinafter more clearly appear, and so on indenitely alternatively moving the platen backward and forward a predetermined distance depending on the depth of the card employed and the exact position to which the card is to be brought with reference to the printing line.

A card clamp forming an important factor of the present invention will now be described.

This card clamp is preferably detachably engaged with the platen so that on the removal of the `clamp and the release of the locking member 37 the machine may be employed for ordinary uses. Referring more particularly to Fig. 8 wherein the card clamp is shown detached it will be seen that it comprises a securing strip or member curved in cross section to conform to the surface of the platen against which it is rmly held. Secured to and overlapping the securing strip is a relatively thin shielding strip 46 curved in cross section concentric with the surface of the platen. This shielding strip extends upwardly from the securing strip when the latter is secured in place and overlaps the major portion of the card, indicated at C in Fig. 8, leaving only a comparatively small depth at the upper edge of the card exposed to receive one or more lines of typewriting, one line usually suhicing. This exposed edge of the card is indicated at 4'7.

Contained within the outline of the card are tabs 48 formed by cutting the body portion of the card through on the line 49. These tabs constitute means whereby different cards are connected together in such relation that the upper edge of one card will extend above the upper edge of another adjacent card connected therewith, to display the written lines near the upper edges of the cards. It is importa-nt to receive the cards within the card guide in such a manner that the protecting shield 46 of the clamp will overlap the tabs and prevent them from being projected away from the face of the platen in positions where they would be apt to be torn or mutilated by fouling on parts of the machine when the platen is rotated.

By constructing the securing strip 45 and shielding member 46 in the manner indicated, and making the securing strip of relatively thick stock, I am enabled to provide an arresting edge or abutment 50 (see Fig. 9) at the upper edge of the securing strip. This constitutes a stop against which the bottom edge of the card C may be seated and the card squared, as indicated in Figs. 8 and 9. I thereby provide for securing the card to the platen always in a xed definite relation.

I prefer also to employ a struck up ear 51 (see Fig. 8) at one end o-f the protecting shield 46. This ear constitutes a side stop against which a side edge of the card C may be caused to abut so as to maintain always a definite relation between a card and the platen, considered lengthwise of the latter. It will be understood the shielding member 46 is slightly resilient and is effective to maintain a card against the surface of the platen in a curved condition, as shown in Figures 1 and 3.

Any suitable means may be employed for detachably connecting the card clamp to the platen. However, I prefer to employ some such means as those about to be disclosed inasmuch as it is unnecessary, with the aid of such means, to mutilate the face of the platen in order to provide for detachably connecting the card clamp thereto, so that in the event that the machine is to be used for `ordinary purposes the face of the platen remains intact. Moreover, the -present construction for detachably connecting the card clamp to the platen enables me to employ standard platens and apply the devices of my invention thereto without modifying the existing structural features of the platen.

At one end of the platen I secure a bracket plate 52 with the aid of screws 53 which are received in tapped openings in one of the platen heads. This bracket plate is provided with a slot A54 bounded on one side by the body of the plate 52 and on the other side by a cross bar 55 which forms part of the plate. From an inspection of Figs, 6 and 8 it will be seen that there is provided at each end of the securing strip an inwardly bent arm 56 that terminates in a locking lug or projection 57. The parts 56-57 thus constitute a hook-like engaging member that is adapted to be received in the slot 54 in the bracket plate and engage behind the cross bar 55 thereof. Engaged in this manner the securing strip 45 is detachably connected to the platen at one end. The opposite end of the securing strip is also provided with a corresponding engaging member, designated by the same reference numerals 56-57, and is adapted to engage in a like manner a bracket plate 58 secured to the opposite end of the platen by screws 59. In this instance, however, the bracket plate is in the nature of a spring plate secured at one end and free at the other end to be flexed outwardly away from the end of the platen under the inherent force of the spring of the plate, and thus maintain the cross bar 60 thereon interlocked with the associated hook--like member 56-57 on the securing bar. An inward pressure on the free end portion of the plate 58 is effective to release the cross bar 60 thereof from engagement with its cooperating hook-like member 56-57 on the card clamp, thus releasing the clamp from the platen and enabling it to be detached therefrom.

The stem of a headed screw 6l passes freely through an opening in the spring plate 58 and is received at its inner threaded end in'a tapped opening in the adjacent platen head. The head of this screw coacts with the spring plate 53 to limit the outward movement thereof when it is released from interlocking engagement with the card clamp. The card clamp being detachably connected to the platen in the manner indicated, and assuming the parts to be in the Fig. 3 position, is ready to receive the lower major portion of a card behind the shield 46, the lower edge of the card at this time abutting the upper edge 50 of the securing strip and abutting the end stop 51 on the shield 46 in order :to accurately position the card relatively to the platen. The crank arm may then be drawn forward effecting a backward rotation of the platen to the Fig. 1 position, where it is arrested by the cooperation of the stops 24 and 36a.. At this time the card is positioned to receive a line of writing along the top edge thereof as indicated in Fig. l where the dotted line a indicates the r printing line.

During the backward rotation of the platen just described, the unprotected upper edge portion of the card will be brought into cooperation with the usual spring pressed line gage 62 and is reversed carrying it back to the 3 position, where it is arrested by the cooperation of the sto-ps 36a and 25 and where the card may be removed and a new one inserted.

From the foregoing description it will be seen that I have provided comparatively simple and highly effective means for rapidly feeding the cards accurately to position in the machine, for writing near the upper edges thereof and for protecting cards of the character described from mutilation during the feeding ofthe card with the platen.

It will also be understood that the devices of my invention may be readily applied to existing machines without modifying, or materially modifying, the existing structural features thereof.

Various changes may be made inthe construction without departing from my invention as it is defined in the accompanying claims.

What I claim as new and desire to secure by Letters Patent is:

1. The combination of a cylindrical platen, a card clamp detachably secured thereto and having a .protecting shield concentric with the surface of the platen and overlapping a card when the latter is in position for the major portion of the depth thereof to protect tabs formed within the outline of the card from being torn or mutilated and exposing only the upper edge portion of the card to receive typed impressions thereon, manually controlled means for turning the platen backward and forward a denite distance and for bringing the exposed portion of the card to printing position, said manually controlled means. comprising a manually controlled crank arm, means operable at will for connecting said crank arm to turn the platen, two plates mounted f or relative adjustment around the axis of the platen, means for retaining said plates in adjusted positions, a stop carried by each of saidy plates, and with which the crank arm coacts to limit its motion, and an integral spring detent formed as a part of one of said plates and with which the crank arm coacts to hold it in normal position.

2. The combination of a cylindrical platen, a card clamp comprising a relatively thick securingstrip one edge of which constitutes an endstop, against which a bottom edge of a card is adaptedto abut and be squared, and a protecting shield concentric with the surface of the platen and secured to and carried by said securing strip and overlapping a card when the latter is in position for the major portion of the depth thereof to protect tabs formed within the outline of the card from being torn or mutilated and exposingy only the upper edge portion of the card to receive typed impressions thereon, connecting devices at the ends of said securing strip, coacting connecting devices at the ends of the platen for detachably connecting said cardv clamp to the platen, a manually controlled crank for turning the platen4 backward and forward a denite equal distance and for bringing the exposed portion of the card to printing position by a backward movement of the platen, means settable at will and independently of the movement of the crank arm for maintaining indenitely said crank connected with the platen while the crank is to be used for feeding cards or for maintaining the crank disconnected from the platen when the latter is intended for ordinary use, adjustable means for predetermining the definite distance said platen may be turned by said crank backward and forward, said adjustable means comprising relatively adjustable stops with which said crank coacts, and detenting means for holding the crank against displacement only in the event that it has first been disconnected from the platen,

3. The combination of a cylindrical platen, a card clamp detachably secured thereto and having a protecting shield concentric with the surface of the platen and overlapping a card when the latter is in position for the major portion of the depth thereof to protect tabs formed within the outline of the card from being torn or mutilatedv and exposing only the upper edge portion of the card to receive typed impressions thereon manually controlled means for turning theplatenn backward and forward a denite distance and for bringing the exposed portion of the carcl to printing position, said manually controlled means comprising a manually controlled crank arm, means operable at will for connecting said crankarmv to turn the platen, frictional means for maintaining indefinitely said connecting means in either the connecting or disconnecting position to which it may be shifted so that in the latter position an operation of the crank arm has no eifect on the connecting means, a spring detent cooperative with said crank arm to holdy itat one endof its throw only when said connecting means has first been shifted manually to disconnect the crank arm from the platen, and arresting means for limiting the throw of the crank arm in both directions.

4. The combination of a cylindrical platen, a card clamp detachably secured thereto and having' a protecting shield concentric with the surface of the platen and overlapping a card when the latter is in position for the major portion of the depth thereof to protect tabs formed within the outline of the card from being torn or mutilated and exposing only the upper edge of thel card to receive typedimpressions thereon, manually controlled means for turning the platen backward and forward a denitey distance and for bringing the exposed portion of the card to printing position, said manually controlled means comprising a manually controlled crank arm, a toothed wheel connected to turn with the platen, a locking member carried by said crank arm and manually movable thereon into, and out of engagement with said toothed wheel, frictional meansv for holding indenitely said locking member in either of such positions to which it may be shifted so that the crank arm may be permanently connected with the platen when. the crank arm is in use for feeding cards with the aid of said clamp or may be permanently maintained disconnected from the platen when the latter is to be employed for ordinary purposes, a spring detent that is operative to hold the crank arm ont of use at one end of its. throw only in the event that said locking member has first been manual: ly shifted to and held in its disconnect position, and arresting means cooperative with said crank arm to limit its movement in both directions.

5. The combination of ay cylindrical platen, a card clamp detachably secured thereto and having a protecting shield concentric with the surface of the platen and overlapping a card when the latter is in position for the major portion of the depth thereof to protect tabs formed within the outline of the card from being torn or mutilated and exposing only the upper edge portion of the card to receive typed impressions thereon, manually controlled means for turning the platen backward and forward a denite distance and for bringing the exposed portion of the card to, printing position, said manually controlled means comprising a manually controlledv crank arm, a toothed wheel connected to turn with the platen, a locking member carried by said crank armand manually movable thereon into and out of engagement with said toothed wheel, frictional means for holding indenitely said locking mem,- ber in either of such positions tol which it may be shifted so that the crank arm may be permanently connected with the platen when the crank arm is in use for feeding cards with the aid of said clamp or may be permanently maintained disconnected from the platen when the latter is to be employed for ordinary purposes, a spring detent that is operative to hold the crank arm out of use at one end of its throw only in the event that said locking member has rst been manually shifted to and held in its disconnect position, and arresting means coop-

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