US1603828A - Typewriting machine - Google Patents

Description

oct. 19,1926. 1,603,828

E. E. BARNEY 'IfYPEWRITING MACHINE- Filed June 18, 1926 2 Sheets-Shee't 2 Paternal oct. 19, 1926.

' UNITED STATES.-

- 1,603,828 PATENT OFFICE.

EDWIN E. BANNEY, or NEW ROCHELLE, Naw YORK, assrcNoR ro REMINGTON TYPE- WRITER COMPANY, o11.1 LION,- New Yoan.; CORPORATION OF NEW YORK.

TYPEwnITI-NG 'MAcmNa Application med inne 1,8',

i ally stated, are to provide, simple, light and compact paper feed devices, that are inexpensive to manufacture and may be 4readily assembled in the -machine and detached therefrom when desired. The mechanism of my4 invention is designed more especially for light, 'portable typewriting machines in which the provision of devices having the above mentioned characteristics constitute such an important factor, although such devices are available for embodiment in other types of typewriting and like machines.

hereinafter appear, 'my invention consists in the -features of construction, arrange# ments Aof parts and combinations of devicesl set forth in the following specification and particularly pointed out in the accompanying claims.

'In the drawings wherein like reference characters designate corresponding parts in the various views,

Fig. 1 is an enlarged, detail, fragmentary, vert-ical, foreand aft, sectional view of a carriage equipped with the devices of my invention; the section being taken on theline 1-1 of Fig. 4 and looking in the direction of the arrows at said line.-

Fig. 2 is a like view'of the'same,ftaken on the .line 2-2 of Fig. 5 and lookingin the direction 0f the arrows at said line, the parts being shown in the released position. f

Fig. 3 is a detail, bottom plan view of the combined paper table and apron, shownnde-l Fig. 4 is a detail, top plan View of the carriage, with the rvplaten and combined paper table and apron broken away.

Fig. 5 is a vertical. transversesectional`A view of the carriage with the platen .removed, the section being taken on the line 5-5 of Fig. 4 and looking in the directiqp of the arrows at'said line. f

Fig. 6 is an enlarged, detail, fragmentary, top plan view, with the parts sectioned away, of the releasing shaft, its holding latch and some of the other associated parts; the view showing the latch released from the shaft to permit its.- removal.

Fig. 7 is an enlarged detail, side View of particularly to paper feed- 1926. serial Na 116,345.

onel of the supporting brackets, showing lincross section the rock shafty supported thereby.

, Fig. 8v is an V perspective view of one of the feed roller hangers.

enlarged, detail, fragmentary y I have shown my invention embodied, in

the present instance, in a Remington portable machine, only so much ofsaid machine being shownas is necessary to illustrate my invention in its embodiment therein. The

devices of the present invention are such that they may be readily incorporated in said machine without mo 'fying, or materi- 4ally modifying, other structural features of v the machine as they now exist. To the above and other ends which will It' is a feature of the. present inventiony that when the platen is removed from the carriage inthe usual manner,the shifting of a latch permits the independent removal of the' combined paper table 'and apron, together 'with the platen and carriage-scales l mounted thereon. This leaves exposed, and

gives access to, the` independent-ly mounted forward and `back feed rollers, and feed roller releasing means, located below the par-ts to bel rapidly assembled in the machine, but enables access to be readilyli'ad to parts that ordinarily are more Or less inaccessiblefor ready adjustment, replacef ment or repair.

The carriage .of the Remington portable machine comprises a base plate 1 mounted on crossed supporting rollers 2 (in the usual manner, t0 guide the carriage on its case shifting support 3 to-t-ravel from sideto side of the` machine: `-ing rollers are not shown. a

The platen 4 is mounted on the usual detachable spindle -5 that enables the'platen to be readily removed when desired; said spindle being supported by endplates' fixed `to the base vplate 1 of the carriage.

A .combined paper vtable and apron 7 inclines upwardly and'rearwardly in the rear of the platen and is curved beneath the latter to form a paper apron which terminates at its front edge 8 in front of the platen. llhis member 7 is provided withl depending ears 9 perforated to provide bearing open- The forward supportings for pivots and 11. The member 7 as a whole is thus pivotally supported on the carriage to swing from the position shown in Fig. 1, to that 'indicated in Fig'. 2, and vice versa. Normally, the front edge 8 of the member 7 is lightly pressed against Vrthe platen on a work sheet thereon, asshown in Fig. 1, by a leaf spring 12, secured at its lower end to the base plate 1 by a screw 13. The upper free end of this spring bears with a rearward pressure against the front of the member 7, thus tending to hold it in the Fig. 1 position.

. Thevmember 7. is provided with openings 14 for the rear paper feed rollers 15, and is recessed at 16 in its front edge to receive the front paper feed rollers 17. An .angular scale plate 18, which extends throughout vthe length of the member 7, is provided with depending ears 19. bifurcated at their lower ends, at 20, to straddleheaded screws 21. The stem of each screw 21 passes freely through .the slot in 'the associated bifurcated ear 19, and through a horizontal slot 22 in the upright` portion of a forwardly and upwardly extending bracket arm 23, formed on an end of the member 7. The rear threaded end ofeach screw ,is received in a nut 24 (see Fig. 5) back of the companion bracket arm 23, each nut beingpreferably shaped as shown to prevent it from turning. This connection between the mem-` ber 7 and the scale plate 18 enables the latter to be adjusted longitudinally, and also up and down on the member 7 to obtain a proper adjustment of the 'scale plate at each end thereof. By tightening thev screws 21 the parts will be Vclamped together between the head of each screw and its companion nut 24.

From an inspection of Fig. 4 it will `be seen that there are scale markings at both the upper and lower edges of the scale plate 18, one setfof markings constituting a platen scale and the other set a carriage scale.

The pivot pin 11 :fory the combined paper shelf and apron projects inwardly from the upright arm of a bracket 25 fixed at'26 to the base plate 1 of the carriage. The other pivot 10 projects inwardly from the upright arm of a bracket 27. This last mentioned bracket in.. the present instance constitutes art of a latch or holding device -28, as will hereinafter more clearly appear.

Referring more particularly to Fig. 6, it`

Will be seen that the foot piece 2910i.3 this bracketrests on'the upper surface of the base plate 1 of the carriage and is shiftably mounted thereon from the Fig. 4 connecting position to, say, the'Fig. 6 releasing position. The manner of mounting member 27 in the present instance, is totap the foot piece 29 for the reception of two headed screws 3() and 31. The'stems of these screws pass up through a slot 32 in the base plate Leoaeae apron may be released from its pivot 11 and detached from the machine, assuming the platen has'tirst been removed. `When the member 7 is mounted in place, as indicated in Fig.l 4, a tightening of the screws 30and 31 will clamp the member 27 to the carriage and hold it against accidental displacement.

The slot 32 in the base plate has a lateral extension 32,a in which the stem of the screw 31 may swing, as shown in Fig. 6,'

to enable the member 27 to receive a pivotal movement around the' screw 30 and assume an angular position after the pivot 10 has been withdrawn from its bearing opening in the associated ear 9 of the paper table. The eti'ect kof this is to shift the part or locking latch 28 from its hold- Aing position, shown in Fig. 4, to its releas ing position, shown in Fig. 6 for purposes which will presently appear.'

The rear'main paper feed rollers 15 are loosely mounted on a supporting rod or spindle 33, and are maintained separated thereon by spacing sleeves 33. The ends of the spindle 33 are loosely supported in barrel-like bearings 34 in' sheet metal hangers 35 and 35, the ends of the spindle being slightly headed tovprevent -longitudinal displacement of the spindle in its bearings.

Each hanger 35 and '35a is shaped some-v what like that shown in detail in Fig. 8

and extends fore and aft of the machine and is provided at its lower end with bentdown, integral, parallel ears 36. `These ears are perforated to form Ibearing openings that receive a pivot rod 37. Secured by screws 38 to the upper side of the base plate 1 of the carriage. near the right hand end thereof, is a sheet metalI bracket 39. Onev side of 4this bracket has 'a barrel-like seat 40 to receive and hold therein one end ot' the companion' pivot rod 37. `At the other side of the bracket is an upstanding arm 41 perforated to form a seat for the other end of the said last mentioned pivot rod, and thus pivotally support the hanger 35. on the base plate 1 ofthe carriage. The hanger 35a which supports the other end of the feed roller spindle 33 is' construetedand mounted in a like manner and correspondin;r reference numerals will be applied to the parts where they are alike. l

Corresponding forwardly extending hangers 42 and 43 for the spindle 44 of the forward feed rollers 17 are constructed and mounted o-n the pivot rods 37 in the same manner as the hangers 35 and 35a, previous- 37, and bears at one end 49 against the for-` ward hanger and at its opposite end 50 against the rear hanger, tending to force the free ends of both'hangers towards the platen.

It will be seen that the hangers of each' companion pair 35, 42 and 3 5, 43 are 'arranged one in front of the other and in fore and aft alignment, although the spindle supporting Aarms of the forward hangers arc off-set outwardly from the spindle supporting arms of the. rear hangers. It will be seen, moreover, from an inspection of Figs.4

2 and 8 that each hanger is angular in cross section andv that the hangers of cach companion pair- 35, 42 and 35, 43 are spaced apart above their pivot 37, and intermediate said pivot and 'the platen. By this arrangement a releasing device, in the nature of a rock-shaft 51, may be readily positioned interi'nediateA the hangers of each pair, to coact with the flat face of the sheet metal .body portion of each hanger, and when desired ma be readily removed upwardly from suc vposition and detached from the ....machine, as will now be explained.v The-rock shaft 51 is preferably angular'in cross-section, not only where it "'coacts with the feed roller hangers to cam them to releasing osition, vas shown. in; Fig. 2, 'but substantially .throughout the length thereof to give added rigidity to the shaft. One end of the shaft is formed with a reduced cylin'! drical portion52 where it is received in a circular bearing opening in a' bracket arm y has a circular bearing opening for one end of the shaft 51, whereas the arm 41 has an open-mouth bearing`54 from which the shaft 5l may be withdrawn. When the shaft51 is seated in its bearings as indicated, lthe squared inner portion of the shaft adjacent to the part 53 thereof will bear against the inner face of the bracket arm 41. This pre- -vents the shaft lfrom shifting longitudinally to the right, orto th'e left as the lparts appear in Fig. 6, and prevents the shaftffrom .being unseated from its bearing in the bracket arm 41a. On the other hand, the shoulder, formed where the cylindrical reduced end 52 joins the squared portion of the shaft, is adapted to coact with the inner face of the bracket'arin 41a andv limit the longitu` dinal motion of the shaft tothe left, or to the right as the parts appear in Fig. 5.

`Thcsliaft `51 is extended to the right, or to the left as shown in Fig. 4, andv projects through a slo-t 55 (Fig. 2) in the right-hand end plate 6 of the carriage. An 'arm 56 is .sjeeiired to the outer end of theshaft 51 and terminates in a finger piece 57 by which the shaft maybe rocked from the Fig. 1 to the Fig. 2 position. In this last named position the arm 56 coacts with a stop pi'n 58 secured to and projecting outward fro-in the rightliand iend plate 6 of the carriage.

In order to prevent the shaft 51 from being accidentally unseated yfrom its bearings I employ a suitable releasable latcl'i, holding or retaining dcvice,in the present instance representedA by the partv 28, hereinbefore described, of the member 27. When the parts are in the normal, holding position, represented in Fig. 4, the latch 28 overlies the part 53 of the shaft and prevents a movement of said part up in the open-mouth bearing 54 in the bracket arm 41. As long as the latch 28 is retained in this position, the shaft'51 cannot be removed. When, however, the latch 28 is moved to one side, as shown in Fig. 6,v the shaft may be lifted up in its bearing 54 until the squared portion. clears the bracket arm 41. ThenI the shaft may be shifted to the right and the reduced end 52 thereof unseatcd from its bearing, and the shaft removed from the machine; the slot 55 in the right-hand end plate fa: cilitating such removal. The removal of the shaft 51 in the manner just described, of course, assumes that the platen and` coinbined paper table and apron have first been removed from th'e machine.

When -the feed rollers are released by rocking the shaft 51, it is desirable, by the same operation, to release the'forward edge 8 of the paper apron from the platen or the vWork sheet thereon. In order to effect this result I have provided two forwardly and downwardly projecting extensions 59 on the forward edge .of the paper apron 7. The

liorizontallydispofed arm of each extension 59 extends over the spindle 44 and the downwardlyextending vertically disposed arm is arranged 'in front of -the spindle, or a spacing sleeve 47 thereon. Preferably, there is .a lost motion between each cooperating spacing sleeve 47 and the extension with which it coacts in the movement ofthe feed rollers 17 from the Fig. 1 the Fig. 2 position.

The result is that at the last portion of the releasing movement of the forward feed rollers, theextensions 59 will be contactively engaged, and the combined paper ,table and apron turned on its pivots from the Fig. 1 to the Fig. 2, releascd'position. -When the i feed rollers are returned to normal position the spring 12 turns the combined paper table and apron 7 on its Fig. 1, position.

It maybe here pointed out that the provision of the extension 59 does not interfere pivots backto the normal,

`with the readyremoval of the combined paper table and apron 7 in the manner here- Iinbefore described, since a mere lifting of the member 7 frees it from the forward feed roller spindle 44.

From an inspection of Fig. 1 it will be seen that the releasing shaft 5 1 does not normally receive the ressure of the springpressed feed roller iangers 35, 42, and 43, so that the fullppressure of the springs 48 ,is exerted through the feed rollers 15 and 17 against the platen, or the work sheet thereon.

When ,'however, the shaft`51 is turned from the Fig. 1 to .the Fig. 2 position, the front vand rear sets of hangers will be cammed away from each other until the shaft is ari 4rested by the arm 56 coacting with the stop 58. At this time opposite diagonal corner-s of the shaft coact with the hangers, the pressure of the latter on being exerted in opposite directions towards the axis of the shaft effecting substantially a dead center lthrust thereon. In practice I prefer to arrest the shaft slightly over the exact dead centering position, as shown in Fig. 2, to effect a more reliable holding ofthe parts. This holds the shaft in the posit-ion to which it has been turned by the limit. of its releasing movement; locking or holding the paper feed devices released until the finger piece 57 is moved forward to break the dead centering arrangement of the parts. A movement of the finger piece 57 back to a point short of where the parts are substantially dead centered is suiicient to release the paper feed devices without, however, locking them in the 'released position. When the operator releases the finger piece 57 after suchl an operation the parts Iwill be returned to normal positions by the springs 48 and 12.

It will be understood that by the present arrangement the forward and rear feed roller hangers exert a balanced spring pressure against the' interposed rockshaft 51 duringof the parts, as well as lowcost of manufacture, are such importantfactors in the production of a portable machine.

It also will be understood that the construction of the resent invention enables the parts to be qulckly assembled in lmanufacture', as well as giving ready access to and removal of parts for the purpose of repair or replacement, when required. Also thatV the lfeatures ofthe invention may be readily included in the Remington portable machine without modifying, or materially modifying, other structural features thereof.

Various' changes may be made without departing from `my invention as it is defined in the accompanying claims and some of the features may be employed without others.

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

1. In a typewriting machine, the combination of a carriage, a combined paper table land apron, paper feed rollers mounted on the carriage beneath the paper apron, and hand releasable means that enable said combined paper table and apron to be readily removed and give completefaccess to the -feed rollers and their vmountings after ltheplaten has been first removed. g

2. In -a typewriting machine, the combination of a. plurality'of pairs of sheet metal feed roller hangers pivoted at the lower ends Athereof on the carriage and spaced apart above their pivots, the hangers 0f each pairbeing disposed one opposite and in front of the other, a set of front paper feed rollers carriediby the front hangers, a set of rear paper feed rollers carried by the rear hangers,- a hand controlled rock shaft angular in cross section located in the space between the hangers of each pair and above the pivots thereof and cooperative with said hangers to shift them in order to release the feed rollers from the platen, an open-mouth bearing for one end of said shaft, and a hand releasable holding member that may be shifted from a position where it prevents-the shaft from moving out of said bearing to a position where the shaft is free to be'removed from said bearing and detached from the machine.

3. In a typewriting machine, the combination of a platen, a combined'paper table and apron which extends beneath the platen and terminates at its front edge in front of the platen, supporting members bene/ath the platen on which said combined paper table and apron is pivotally mounted so that the front edge of the' aper apron may be pressed against the p atenand rocked away therefrom, and means that enable said supporting members to be moved by hand relatively one to the other in order to permit the combined paper table and apron to be detached from said supporting members and removed from the machine.

4:. In a typewriting machine, the combination of a carrlage, paper feed rollers, re leasing means therefor comprising a hand controlled rock shaft, and means for def mountably supporting said rock shaft on the carriage comprising an open-mouth bearing on the carriage in which therock shaft may be seated 'and rocked,'anda hand releasable holding Vmember' mounted on the carriage for shifting movement from a position where it prevents the shaft from moving out of said bearing to a position w'vhere'the shaft is free to be removed from said bearing and detached from the machine.

l 5. In a typewriting machine, the combination of a carriage, a combined paper table andapron, paper feed rollers mounted on the carriage beneath the paper apron, and handv releasable means that enable said combined paper table and 'apron to Vbe readily removed andgive complete access to the feed rollers and their mountings after the platen has been first removed, said hand releasable means -comprising supporting members yby which .the combined paper table and apron is mounted on the carriage and one of which members is movable relatively to the other to release the combined paper table and apron and enable it to bel detached from the carriage. v

v6. In a typewriting machine the combination of a plurality of pairs of sheet metal feed roller hangers pivoted at the lower ends thereof on the carriage and spaced apart above their piVots,-t he hangers of each pair being disposed one opposite and in front of the other, a. set of frontl paper feed rollers carried by the front hangers, a set of rear paper feed rollers carried by the rear hangers, a rockshaft angular in'cross section located inthe s ace between the hangers of each pair and aliove lthe pivots thereof and cooperative with the fiat faces of Said sheet metal hangers to shift them in order to release the feed rollers from the platen, a handI controlled `crank arm on said rock shaft, and a stop for arresting the motion of said crank arnrwhen oppositely disposed corners of saidangular rock shaftare substantially dead centered against the axis of the shaftand under the pressure of the hangers thereon, whereby the feed rollers ymay be position under sition disconnecting said pivotal connection,

thereby enabling the paper apron to be sdetached from the carriage. 4 v i Y 8.- In a typewriting machine, the combination of a carriage, a paper apron, and-means for detachably mounting and pivotally supporting said paper apron` on the carriage, said means comprising two supporting brackets on the carriage, one of said brackets being mounted for vshifting movement `into and out of eective position, the shiftable bracket 'when in the effective ppsition retaining the paper vapron pivoted' on the I carriage and Whenin the ineffective position disconnecting said pivotal connection, thereby enabling the paper apron to be detached from the carriage, and means for retaining said shiftable bracket'against accidental displacement from either of said positions to which it may be set. v I

9. In a typewriting machine, the combination of a plurality of pairs of feed roller hangers pivoted at their lower ends -on the lcarriage and spaced apart above their pivots, theahangers of each pair comprisinga 4front and a rear hanger, a set of front vpaper feed rollers carried by the front hangers, a set 'of rear paper feed rollers carried by the rear hangers, a hand -controlled rock shaft located in the space between the hangers of. each pair and above the pivots thereof and cooperative with said hangers to shift them in order to release the feed rollers from the platen, an open-mouth bearin for one end portion of said shaft, and a racket shiftably mounted on the carriageI into and out of effective position andv having a latching member that overlies said shaft and prevents it from moving u out of said open-mouth bearing when the racket is in effective position and releases the shaft and enables it to be moved up' out of said'bearing and to bracket is in the ineffective position.

10. In a typewriting machine, the combination of a carriage; a paper apron; means for detachably mounting and -pivotally supporting said paper apron on the carriage, said means comprising two supporting "brackets on the carriage, one of said brack-l ets being mounted for rectilinear and iv- 'otal shifting movement 4into and out of e ective position, the shiftable bracket when in the effective position-at one-end of its rectilinear movement retainingthe paper apron pivoted on the carriage and when in the ineective position at the other end of said rectilinear movement 'disconnecting saidl pivotal connection, thereby enabling the paper apron to be detached from the carriage; paper feed rollers; a releasing rock shaft therefor; and means for detachably mount- 4be detached from the machine when the ,I

ing said rock shaft von the carriage comprising an open-mouth bearin in which one end portion of said rock shaft 1s mounted to turn 'from said bearingjand detached from the carriage.

11. In a typewriting machine, the combination of a carriage, a paper apron, feed rollers, a releasing device therefor, and means 'for detachably mounting said paper apron and releasing device on the carriage comprising a holding member shiftable in one direction to release the paper apron for detachment from the carriage a-nd shiftable in another direction to release said feed roller releasing device for detachment from the carriage.y

12. In a typewriting machine, the combin-ation of a carriage, forward and rear paper feed roller hangers pivoted at their lower ends and spaced apart above their pivots,-

paper feed rollers carried by said hangers,

a feed roller releasing rrock-shaft located in the intervening space between said forward and rear hangers and above the pivots thereof, said rock shaft being angular in cross section where it coacts with said hangers and having cylindrical bearing portions, supporting brackets having bearings in which the cylindrical portionsof the shaft are received and against the sides of which brackets the angular portions of the shaft bear to prevent longitudinal displacement of the shaft in its bearings, 'one of said bearings being an open-mouth bearing from which one end portion of theshaft may be displaced, anda retaining device shiftable from a position overlying said shaft and where it holds the shaft ink its open-mouth bearing to a releasing position where the shaft is free to be displaced from said open-mouth bearing and to be detached from the carriage.-

, Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York this 16th day of June, A. D. 1926.

nDWrN E. BARNEY.

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