US1752482A - Typewriting machine - Google Patents

Description

April 1, 1930. s. G. GOING TYPEWRITING MACHINE Original Filed May 2, 1927 Z? w vs Patented Apr. 1, 1930 UN TE? S S PATENT OFFICE G. GOING, OF MIDDLETOWN, CONNECTICUT, ASSIGNOR TO REMINGTON TYPE- GDITPANY, ILION, NEW;YORK, A CORPORATION OF NEW YORK TYPEWRITIYNG MACHINE Original application filed May 2', 1927, Serial No. 188,243. Divided and this application filed December 17,

. 1927. Serial No. 240,734.

My. invention relates, to typewriting or like machines and more particularly to paper feeding devices therefor.

hereinafter appear, my invention consists in the features of, construction, arrangements of artsand combinations of devices set forth in. the followingdescription and particularly pointed out in the-appended claims. 7

In the accompanying drawings wherein likeireferjence characters indicate corresponding parts in the different views Y Fig. luis .a; detail,- f-ragmentary, front elevation of a carriage equipped with the de- 0 fvices of my, invention.

Fig. 2.-is adetail, fragmentary, vertical, :fore and, aftsectional view of the same. .'.;Flg- .3pisyan enlarged, detail, perspective :viewaof one ofthe carrying arms or members for the cross-bar that supports the auxiliary feed rollers: Li; I Q p .Figisislangenlarged, detail, perspective view of a companion supporting arm or member which coacts with the carrying arm disclosed in Fig. 3., I

Fig. 5 is a detail perspective view showing oneend of the cross-bar on which the auxiliary feed'rollers are mounted.

-I have shown my'invention embodied, in the present instance, in the carriage of a No. -6 Remington-Noiseless machine inwhich the invention may be readily incorporated with out modifying,- or' materially modifying, the existing structural features of said machine.

' 9 It should be understood," however, that the lIlVBIltl'OIllS not restricted to'embodiment in such machines, but maybe employed-in typewriting and likemachines generally, wherever foundavailable. y I The resent case is a division of my appli- :cation r. -No.:188 ,243, filed May 2, 1927. :Only so much of a No. 6 Remington-Noise less machine; is shownias isnecessary to illustmte; my invention in its embodimenttherein.

1; carriage comprisessead platesel: 9. 1

nected to a main supporting and guide bar 2 grooved on opposite sides thereof at 3 to receive anti-friction rollers which also are re- .ceived in grooved faces in the guide rails of a case shift frame, not shown. The end plates 1 are further united by cross bars 4 and 5.

Forward main feed rollers 6, re ar main feed rollers 7 and a; combined paper table and apron 8 are conventionally represented. So far asthe present invention is concerned these devices may be of any suitable character, such, for example, as those disclosed in detail in my hereinbefore mentioned parent application. 7

Referring now to the paper feed bail, it will be seen that a spindle or cross-bar 9 has opposite fiat sides 10. This bar is received at each end in a bearing opening 11 in a sheet metal carrying arm, designated as a whole by the reference numeral 12, and shown in detail in Fig. 3. The vertically disposed ear 13 on each arm, in which a bearing opening 11 is provided, is inwardly off-set from a horizontally disposed member 1 1, pierced at 15 to receive the stem of a headed screw 16. This screw after passing into the opening 15 is threaded into a tapped opening 17 in the rod 9.- Aniupright member 18 joins the member 14 ofl each carrying ar'm 12 and has a lengthwise sliding connection with a companion, pivoted sheetmetal, supporting arm 19. In the present instance this sliding connection is provided'by a pair of headed pins 20 that are received in slots 21 disposed lengthwise in the arms19. -A cut-out 22 in each pivoted supporting arm 19 receives a lug 23 extending laterally from the companion cararm .2: me Point a the p r: e of a cut-out 24 therein. A contractile spring 25 is hooked at one'end an 'openingu26 in eaeh arm;19,. andaat its other end .in ahole .27 in the lug 23 .of'thecompanio'n carrying ,ar m 12. Each spring .25 is; received in the outputs-22 and24' of the companion arms and is con-fined substantially. within the thicknessfof themetalof the two arms to which, it is connected. Each of the arms 19 isapierced at-- i to; receive :3 a headed, pivot screw; 29 l read l int tapped .qpea' ng mm P- fQR'WfiEQXL-fBWlQPIP have? arm on an end plate 1 of the carriage. Paper feed devices, such as the feed rollers 31, are adj ust-ably mounted in the usual manner along the supporting spindle 9 and rotate freely thereon in any positions to which they may be adjusted. As will be seen, more particularly from an inspection of Fi 2, the feed rollers 31 coact with the platen above the printing line, and the bail, comprising the arms 12 and 19 and the spindle 9, is pivoted at 29 forward of and above the printing line to swing into and out of the effective position. A suitable catch 32 is pivoted at 33 on each end plate 1 and is forced by the power of a spring 34 to coact with the spindle 9 and hold the bail from swinging from effective position with the arms 12 and 19 thereof sub stantially radially disposed with reference to the axis of the platen and extending longitudinally downward and rearward from the pivots 29.

' It will be seen that when the bail is in effective position, shown in Fig. 2, the arms 12 are capable of receiving a limited, rectilinear, sliding movement on the arms 19 towards and from the platen 35 and substantially towards and from the axis thereof. The reaction of the springs 25 is exerted to force the carrying arms 12 away from the pivots 29 or towards the free ends of the supporting arms 19. It will be seen, moreover, that the force of each of the springs 25 is exerted independently of the other in this direction and tends to extend the combined length of the arms 12 and 19 of each pair and thus effectively force the feed rollers 31 against the platen. It also will be seen that it is unnecessary to exert a spring pressure laterally against the arms of the bail to force the feed rollers against the platen and that the spring pressure applied to the feed rollers 31 in the. present instance is independent of any lateral strain or movement of the arms of the bail. This construction enables an evenly distributed and effective pressure to be exerted by both feed rollers 31 against a. work sheet and to provide a straight feed of the work sheet.

It will be understood that any slight tendency there may be for the bail to be accidentally displaced from its effective Fig. 2 position under the reaction of the springs 25, will be resisted and overcome by the catches 32.

From the foregoing description it will be seen that the paper bail construction is simple, compact inexpensive to manufacture and assemble, is highly eflicient in use and may readily be embodied in existing machines without modifying, or materially modifying, the other structural features thereof.

Various changes may be made in the construction and parts thereof may be employed without others, without departing from my invention as it is defined in the accompanying claims.

lVhat I claim as new and desire to secure by Letters Patent, is

1; The combination of a carriage, a platen carried thereby, a pair of supporting arms pivoted at their forward ends on the carriage near the ends of the platen and when-in the normal position extending substantially radially of the platen, a pair of carrying arms connected to said supporting arms to slide longitudinally lengthwise thereof, a spindle connecting the; rear ends of said carrying arms, paper feed rollers carried by said spindle, and a pair of springs connected to the two pairs of arms and each exerting its force to slide the associated carrying arm longitudinally towards the free end of its companion supporting arm and thus exert the force of said springs on the feed rollers to apply them to the platen substantially radially thereof. i

2. The combination of a carriage, a platen carried thereby, a pair of supporting arms pivoted at their forward ends to the carriage near the ends of the platen and when in effective position extendlng rearward and downward from their pivots towards the axis of the platen, a pair of carrying arms connected by pin and slot connections to said supporting arms to slide longitudinally lengthwise thereof, a spindle connecting the rear ends of said carrying arms, paper feed rollers which coact with the platen above the printing line and which are carried by said spindle, and a pair of contractile springs connected to the two pairs of arms and each exerting its force to slide the associated carrying arm longitudinally towards the platen radially thereof and thus exert the force of said springs on the feed rollers to apply them to the platen radially thereof.

3. The combination of a cylindrical platen; and a pivoted paper bail comprising a cross-bar on which paper feed devices that coact with the platen are mounted, a pair of arms mounted for longitudinal sliding movement one on the other at each end of said cross-bar, said arms being disposed longitudinally substantially towards the axis of the platen when the bail is in effective position, and springs which tend to extend the combined length of the supporting arms of each pair and thus apply the paper feed de vices to and substantially radially of the platen with the full force of said springs.

4. The combination of a cylindrical platen; and a paper bail comprising a crossbar on which paper feed devices that coact with the platen are mounted, a pair of arms mounted for longitudinal sliding movement one on the other at each end of said cross-bar, one of each pair of arms being pivoted at its for:- ward end to the carriage and said arms be ing disposed longitudinally from said pivots V which paper feed devices that coact with the platen are mounted, a pair of arms mounted for lOIlUtUCllllfll SllCliIl movement one on the other at each end of said cross-bar, said arms being disposed longitudinally substantially towards the axis of the platen when the bail is in effective position, and springs which tend to extend the combined length of the arms of each pair and thus apply the paper feed devices to the platen; and catches which engage said bail and hold it against accidental displacement from its effective position.

6. The combination of acylindrical platen, a platen frame having bracket arms that extend forward of and above the height of the platen, a supporting arm pivoted to each of said bracket arms, a carrying arm mounted for longitudinal sliding movement on each of said supporting arms, a cross-bar connected to the rear ends of the carrying arms, paper feed devices carried by said cross-bar, and springs each exerting its individual force on one of the carrying arms and tending to force it away from the pivot of its companion supporting arm and thus utilize the force of said springs to apply the paper feed devices on the cross-bar to the platen.

7. The combination of a cylindrical platen, a platen frame having bracket arms that extend forward of and above the height of the platen, a supporting arm pivoted to each of said bracket arms, a carrying arm mounted for longitudinal sliding movement on each of said supporting arms, a cross-bar connected to the rear ends of the supporting arms paper feed devices carried by said crossbar, said supporting and carrying arms when in efiective position extendinglongitudinally from their pivotal supports on the bracket arms rearward and downward substantially towards the axis of the platen, and springs each exerting its individual force on one of the carrying arms and tending to force it away from the pivot of its companion supporting arm and thus utilize the force of said springs to apply the paper feed devices on the cross-bar to the platen.

8. The combination of a cylindrical platen, a platen frame having bracket arms that extend forward of and above the height of the platen, a supporting arm pivoted to each of said bracket arms, a carrying arm mounted for longitudinal sliding movement on each of said supporting arms, a cross-bar connected to the rear ends of the supporting arms, pa.- per feed devices carried by said crossbar,

said supporting and carrying arms when in effective position extending longitudinally from their pivotal supports on the bracket arms rearward and downward substantially towards the axis of the platen, springs each exerting its individual force on one of the carrying arms and tending to force it away from the pivot of its companion supporting arm and thus utilize the force of said springs to apply the paper feed devices on the crossbar to the platen, and spring catches which coact with said cross-bar near opposite ends thereof and hold it against accidental displacement from effective position.

Signed at Middletown, in the county of Middlesex and State of Connecticut, this 15th day of December, A. D. 1927.

GEORGE G. GOING.

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