US1453839A - Typewriting machine - Google Patents

Description

E. B. HESS ET AL TYPEWRITINQ MACHINE May 1, 1 923. 1,453,839

BY Lewis 66M era ATTORNEY E. B. HESS ET AL 'EYPEWRITING momma May 1, 1923. 1,453,839

Original Filed May 11, 1920 4 Shget he9t 4 A TTORNEY Patented May 1, 1923.

' PORA'I'ION OF N'EVV" YORK.

essee EDWARD nnnss, OF BROOKLYN, Ann LEWIS o. MYERS, or rnnnronr, nnw vonxy ASSIGNORS TO ROYAL TYPEWRITER COMPANY, mo erv new YORK, N. Y;, A con- TYPEWR-ITING MACHINE.

To all whom it may concern.

Be it known that we, ED ARD B. Hnss and LEWIS C. MYERS, citizens of the United States of America, and residents, respec tively, of the borough of Brooklyn, city of New York, county of Kings, and State of New York, and Freeport, county of Nassau, and State Of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification. I This invention relates generally to typewriting machines, and has more particularly reference to 'a novel construction of movable paper table and overhead .pressure roller particularly, though not exclusively, adapted to be used in connection with the improvement in the. Royal typewriter set forth in an application Ser. No. 380601 filed'May 11, 1920 of which this application is a division, and with the improvement relating to shiftable carriages set forth in application Ser. No. 404,534, filed August 19, 1920;

which latter application is also a division of application Ser. No. 380,601.

The invention consists of the hereinafter described features of construction and arrangement of parts, a preferred form of which is embodied in the accompanying drawings, in which: a

Fig. 1 is a vertical transverse sectional view of a typewriting machine embodying the invention with the keyboard removed.

Fig. 2 is a plan view of the parts comprising the shiftable carriage, partly in elevation and partly in section.

Fig. 3 is a vertical sectionalview substantially on the plane of line 33 of Fig. 1.

Fig. 4 is a vertical sectional view substan tially on the plane of line 44 of Fig. 1.

The framing of the machine consists of a main frame work having side walls 1 and a rear wall 2 and'supplementary framing comprising a segment support 3, lower station ary raceway 4, extending transversely across the machine and supported in the side walls 1, together with escapement framing extending longitudinally of the machine and consisting of an escapement frame 5 connected withthe underside of lower raceway 4, and escapement wheel support 6 connect-.

ed with the escapement frame.

Supported on the lower. raceway 4 is a transversely movable carriage 7 in which is I at. 380,601.; 4 Divided and this application filed June 19, 1922. Serial No. 5 9,321;

extending transversely, across the. machine above the escapement frame and in rear of lower raceway 4. l

The lower ball; race 4 constitutes what may be termed a mono-rail support for the transversely traveling carriage 7, additional means for supporting the overhang of said carriage being provided on the es capement framing, said additional means here taking the form of two guide rollers 41 and 42. Escapement wheel support- 6 is.

- provided-with a hub 43for the reception of the spindle of escapementwheel 44 and escapement pinion 45 and has an aperture for,

the reception of screw 47 that holds the guide roller 41 in position. Guide roller 42 is carried by a-plate 48 secured to support 6 by'means of screw 49.

The transversely traveling. carriage is composed of traveling, ball race. 50 and endstandards 51 provided with rearwardly ex tending overhanging portions 52. in which 'are' mounted a transversely extended guide rod 53 (which here takes the form of a rock: shaft) that engages rollers 41 and 42. In the form here disclosed, rockshaft 53 is held at each end by a bearing screw54 having a bearing portion 55 fitting in an opening in overhang 52 and provided withxa threaded stem 56 in engagement with a threaded opening in said 'roekshaft'. 57 indicates a margin rail and 58 is a tabular bar, both of which are connected with overhanging portions 52 and which, in addition to the pri mary function implied by their names, also act as stay rods for the traveling carriage. 59

indicates clamps that are attached byiimeans of screws 60 to upper ball race 50 and providedwith horizontally extending and curved guide portions 61 that engage the underside of lower ball race 4. Between the upper and lower raceways are the usual balls 62 having encircling'gears 63 engaging with racks 64.

and 65 of said raceways. 1

The shiftable carriage 8 is composed of a.

transversely extending and horizontally dis posed channel member 80 suitably secured to end walls 83. The shaft of platen 9 extends through end walls 83 in such manner that Ill till

the platen is freely rotatable in said end walls; and said platen shaft also extends through vertical slots 92 in end standards 51 of the traveling carriage. The shiftable carriage is mounted in two pairs of parallel arms carried by the traveling carriage. One pair of these arms 93 are supported on the transversely extending guide rod 53 which, as previously pointed out, is a rock shaft with which the guide rollers 11 and 42 engage, each of these arms being provided with a hub 9a secured to said rock shaft by pins 95 and the outer ends of arms 93 being provided with sleeves 96 through which the platen shaft passe The other pair of parallel arms 97 are pivotally supported at 98 in end standards 51 of the transversely moving carriage and are pivotally connected at their outer ends 99 with end frame 83 of the shiftalole carriage.

End walls 83 of the shiftablc carriage have overhanging portions 100 that are connected by a transverse brace rod 101. 102 indicates the rock shaft of an overhead bail 103 said bail carrying an overhead pressure roller 10% and said rock shaft being rigidly conn cted with bail 108 and mounted for oscillation in end walls 83. Normally, the overhead bail is urged into engagement with the upper surface of the platen by means of a spring 105 connected with pin 106 of said overhead bail and with pin 10? on the end walls of the shiftable carriage. Pivotally supported on bail 108 is a lever 108 having a suitable handle portion as shown and provided at its lower end with a roller 109 adapted to engage the top surface 110 of end walls 83, said top surface acti 1' a cam surface so that when lever 105% is manipulated in a forward direction, indicated in dotted lines in Fig. 3, roller 1.09 will engage surface 110 and will elevate upper pressure roller 104 into an intermediate position out of engagement. with platen 9. In addition to the foregoing, said overhead bail may be raised into the fully elevated position indicated in dotted lines in Fig. 4: said bail having a stop pin 106 that engages the upper surface of overhanging portions 100 of end walls 83. Paper tabl 113 is mounted on angular bracket arms 112 that are pivotally supported by transverse brace rod 101 and is normally urged into its lowermost position in contact with a paper pan 115 by means of a spring 116 connected at one end with a curved and loosely pivoted link 11? on bracket arm 112, and, at its other end, with the transversely extending paper pan support 118. The normal position of said paper table is indicated in Fig. 4t and its extreme elevated. position is indicated in 3 where it will be observed that, when said paper table occupies its rearwardly tilted position, link 117 does not interfere with brace rod 101 due to the curved formation of said link but occupies a position spanning rod 101, as indicated in Fig. 3.

Th feature of providing raceways 4L and with central gutters herein disclosed is claimed in application Serial No. 569322, filed June 19, 1922.

I claim:

1. in a typewriting machine: a platen, a shiftable carriage having end walls and supporting said platen, a transverse brace ro'd mounted in the end walls of said shiftable carriage, a paper pan, a paper table, a pair of arms carried by said paper table and supported on said brace rod, and means for normally urging said paper table into a lowered position including a spring and a curved link connected to the spring and loosely pivoted to one of the arms of the paper table at a point above the brace rod, said link spanning the brace rod when the paper table is in its elevated position.

2. In a typewriting machine: a platen, a shiftalole carriage having end walls and supporting said platen, a rockshaft connecting said end walls, an overhead bail having arms, provided with an angular bend, mounted on said rockshaft, a transversely extending brace rod connecting the end walls in rear of the rock-shaft, a paper table between the arms of the bail, arms, on said paper table mounted on said brace rod. and a stop on the upper surface of one of the arms of the bail to engage one of the end walls of the shiftable carriage when the bail is swung into its uppermost position.

3. In a typewriting machine: a platen, a shiftable carriage having end walls and supporting said platen, a rock-shaft connecting said end walls, an overhead bail having arms mounted on said rockshaft, a transversely extending brace rod connecting the end walls in rear of the rockshaft, a paper table be tween the arms of the bail, arms, on said paper table, mounted on said brace rod, and

a stop on the upper surface of one of the arms of the bail to engage one of the end walls of the shiftable carriage when the bail is swung into its uppermost position, and means for partially elevating the overhead bail including a cam surface on one of the end walls of the shiftable carriage, and a levcr. having a cam roll engaging said surface, pivotally supported in one of the arms of the overhead bail.

Signed at New York city. in, the borough oflllanhattan, county andState of New York, this 26 day of May,-1922.

EDWALRD B. HESS. LEWIS C. MEYERS:

Images