US1587677A - Typewriter - Google Patents

Description

June 8 1926.

1,587,677 H. PEETERS TYPEWRITER Filed Feb. 20. 1924 hun' www5

ummm nn.

l?? rf/Pref /-z pg/Tgp@ Patented im@ aieze.

Unirse stares HENRY PEETERS, OF WARCOING, BELGIUM.

TYPEWRTER.

Application filed February 2G, 1924, Serial No. 694,077, and in Belgium December 21, 1923.

This invention relates to improvements in typewriters and more particularly to devices intended to move the paper holding carriage in both directions.

This invention is applicable to typewriters in which the carriage is temporarily held in a given position before reaching the end of its travel, by means ot an escapementmeehanism, the release of which is' controlled by hand or by the depression of a key.

The device according to the invention is applicable tomacliines :tor printing characters placed normally one after another from lett to right, and also, as is usual in certain oriental languages, from right to lett. By

movement of the carriage in the direction permitting writing, is therefore understood the automatic movement of the carriage under the action of a suitable spring after the typing ot a given character, whilst by re-V tui-n movement ot the carriage7 is understood the movement in the opposite direction under the act-ion of a lever operated by hand.

The invention is applicable to typewriters in which the carriage moves automatically in the direction ot writing, after the disengagement of the escapeinent mechanism, by a control spring element, and in the return direction by a. control element connected to the carriage by means of a pinion and a rack.

According to the invention this control el ment is given a motion of translation in a direction parallel with the carriage and is so connected that the extent ot movement o'l one of the elements is equal to that of the other. VFor this purpose, the above said pinion is mounted on an aiile which carries a second pinion meshing` with a second rack.

The latter is connected to an oscillating iframe carrying the control element, by means of a rod pivoted at its ends. The lengt-h and the relative positions of the rod and oit the frame are such that the translatory movement of the control element is transmitted with an equal amplitude to the carriage, and vice versa.

The countersliatt also carries a helical spring which surrounds it, and the action ot which produces the advance of the carriage in the direction permitting writing, the said spring being set when the carriage is moved in the opposite direction.

The said control part comprises two rods with handles, said rods being coupled together in order to be moved together during the displacement of the carriage, while being able to rotate independently, one of the rods controlling the escapement mechanism for the displacement of the carriage in the direction of writing, and the other moving the carriage in the return direction, while acting on the line-spacing mechanism. D

The spring which exercises a constant pull on the carriage in a given direction, produces an automatic movement of the said carriage so as to allow writing in either direction, with the assistance of a reversing mechanism. This spring produces the rotation oi' two toothed wheels rotating in opposite directions and carried by the same counterslialt as the spring, one of the said wheels being brought into engagement with a toothed rack provided on the carriage;

According to a preferable arrangement, one and the same rack may be moved relatively to the carriage so as to bring it into contact with one or the other of the toothed wheels rotating in opposite directions.V

The movement of the rack relatively to the carriage produces at the same time the disengagement thereof corresponding to the direction oft movement to be no longer utilized, and the engagement of the escapement mechanism corresponding to the direction of movement to be adopted.

To that end, the escapement mechanism drives through a toothed pinion, a rack provided on the carriage, and vin order toallow the escapement to be controlled in accordance with the two directions ot' travelling ot the carriage, according tothe invention is provided a longitudinal frame, the two large inner faces of which have the form of a iaclr, and either of them may be brought into engagement with the pinion driven by the escapeinent.

Two constructions according to the invention are illustrated by Way of example inthe accompanying drawings.

ln the said drawings, p

Figure l is a perspective view oi the device inoving the carriage in the two directions, applied toa machine in whichy is used only the direction of travelling allowing writing from left to right;

lll() Figure 2 is a rear view of the mechanism mounted on a carriage Which allows Writing,l from left to right, or from right to lett;

Figure. 3 is a view looking towards the right, in section on the line of Figure 2;

r igure et is a view sinjiilar to that ot 11 igure 3, showing the position oiithefelemeiits utter the reversing gear has been operated;

Figure 5 is a perspective vieiv of a detail oi tlieniuechanism shown in Figures 2-4.

In the said ligures, the same parts are marked with the same reference iigures, u-'hich correspond also to those oi the `con.` current applications Which relates to rthe general arrangement ofthe typewriter, to the escapement mechanism of the carriage and to the return key. l

The Vcarriage `60Y Which carries the paper by n ieanskoil the pairs of driving rollers Gf M651 and G, travels by means of its rollers 61 on the bed G2 oi the typewriter. This carriage 60 has a rack 103 Which engages With a toothedwvheel 105 mounted on a vertical spindle 102. The said spindle has at its :lower end a pinion 107 which meshes with a rack adjustable in its longitudinal direction between the guides 112.` The .lilovements to the left and to the right are controlledfby means of the oscillating Vframe 113-71141 pivoted about fixed pins '115 and'connectedto the rack 100 by the rod 116 pivoted at its ends.

The length and the relative positions ot the elements r113 ofthe frame'113-114 and oit the rodk 116,'are calculated so that the respective angular movements ofy the elements 113 'and 116 take place in the opposite directions underrthe action of the lever 106# 11'?, in order tormalre the linearmovements of the system uniform at any moment of its travel.`

The saidlever 10G-.e117 is constituted by ,vo parallel rods connected together by collars 118-119 so that both levers may be moved simultaneously and at the same time may be turned individually in their supports 119.A VThe ends of the said rods carrying the handles 120 and 121, project in front of the machine.

ln'that Way, the longitudinal movement of the lever 10G- 107 is utilized for measuring the travel oi the carriage and also interv-eues in the operation of the return key, as described in a separate concurrent application.

In order to move the carriage in thev direction of its return, that is t0 :trom lett to right, the rods 10G, 117 are caused to swing to the right and by inclining the handle 121, the rod 1117 acts on ahorizontal bar 122 through a roller 12supported by two` arms 126. keyed toV the rod 117 and rolling along the bar 122 which is raised by'pivotin'g about fixed pins 123 until it comes in contact With a stop 130, the said bar controlling by means of the rod 121 the line-spacingl mechanism 7 0 shown diagrammatically. The said linespacing mechanism is set, as is done in known typewriters, so as to control by an action on the rod 11T, the driving,` ot thiA paper to one or two lines spaces, or it may be disengaged from the action of the rod 11T.

rilomove the carriage in the direction oi' writing, that is to sayk from right to lett, is sufficient to disengage the escapcment mechanism which holds the carriage in opposition to the action ot the spring which drives it automatically after typing` each letter-. Y f

To that end, the rod 10G has at its end an, easily accessible handle 120 which on being` turned to the lett drives the rod carrying a roller 12,7 supported by the arms 128. This roller dcpresses the pivoted horizontal bar 129 swinging about the iifled pins 123 until it comes in Contact with the stop 125. The bar 129 lowers the lever 131 piv- .otred at one end about the `pivot pin 132 and acting,` With its other end on the escapement mechanism `(not shown) which controls the arriage by means of the pinion 183 meshing with the horizontal rack rilhe said pinion is tree during the return travel ot the carriage, as is the case in the ordinary typewriters.

lhespring 101, the tension ot which acts .on the carriage so as to move it auton'iatically Ain the direction ofivriting, is Wound helically about the countershaft 101.r One end oi the said spring is secured to the collar provided on the bed 62, and the other end is secured to the spindle 102 carrying the Atoothed Wheel 105. This spring,` is set during the movement ot the carriaO-e from lett to right, by means ot the system of levers 11T-116, the rack 100 and the pinion 10i'.

riChe rods 106 and 117 are constituted each by tivo telescope parts in order that their end carrying a pointer 136 moves, during the pivoting about the pinsll, in a slot 13T 'provided in Jiront oi a graduated scale 13S measuring the travel ofthe carriage. v

In Figures 2-41, this method oi' controlling the carriage is shown, applied to a type- Writer allowing` Writing in both directions, that is to say from lett to right or in the usual direction, and from right to lett.

To that end, the rack 103 secured to the carriage 60, may be moved relatively to the latter by sliding in guides 139 under the action of a cam resting on a point ot the carriage.v

The main spring 101 acts through a suitable reversing` mechanism ondthe said rack, that to say, by bringing it into contact with one ofthe toothed `Wheels 105 or 1111 rotatingin opposite directions, the former of which corresponds tothe travel for ordinary Writing, and the second one to the travel in the opposite direction. The connection between the spring :and the wheel 14:1 .is effected by the toothed wheels 105, 142 and 14:3. As the pinion 133 ot the escapement mechanism holds the carriage only when rotating in one direction, the said rack 134 which engages with the pinion 1533, is :formed into an inner tace ot a longitudinal trame lll-l secured to the rack 108 and moving with the latter relatively to the carriage. The opposite inner face 1115 of the said trame is also formed into a rack. T he first rack 1311 meshes with the pinion 133 during the movement in the directionot ordinary writing, and the second one, 145, during the movement in the opposite direction.

Figure shows in detail the arrangement ot the ends oi` the rods G-117 used in the construction described with reference to Figures 2 4. The rods 106-117 are aranged above each other, and the rod 106 carries two rollers 125 and 125 for the purpose ot raising, onthe handle 121 being turned either to the lett or to the right, the said bar 122 during its movement in one of these directions.

Inthat way, with one. and the same handle 121, it is possible to operate the line spacing mechanism by rotating the handle l21--either clockwise or counter-clockwise, and nevertheless the carriage return is always effected by swinging the rods 106, 11T to the lett in the direction corresponding to the movement, produces thereto-re in either ot thel two directions the operation o1u the line spacing mechanism.

The same applies to the rod 106 carrying the two rollers 127 and 127, so that the handle 120 may be turned either to the right or to the left in order to lower the bar 129.

By arranging thus two rollers at the ends ot the rods 106 and 117, the handles 120 and 121 may be turned in the. direction of movement ot the roller, the corresponding auxiliary mechanism being operated at the same time. It must be pointed out, however, that one roller 125 or 12T may also be suthcient, but in that case the handle is turned in the same direction, for instance to the left, the carriage moving to the lett or to the right.

lll/*hat I claim as my invention and desire to secure by Letters Patent is:

1. In a typewriter in which the carriage carrying the paper is held in a given position by means or an escapement mechanism, the disengagement ot which is controlled. by hand or by the depression of a key, a carriage which can be moved in the return direction by a control part acting on the carriage, by means of a toothed wheel, n'ieshing with a rack secured to the carriage and means for producing a. rectilinear displacement olf said control part in a direction parallel to the mot-ion of the carriage.

2. In a typewriter in which the carriage carrying the paper is held in a given position by means of an escapement mechanism, the disengagement ot which is controlled by hand or by the depression of a key, a car-- riage which can be moved in the ret-urn direction by a control part acting on the carriage, by means of a toothed wheel, meshing with a rack secured to the carriage, the control part being connected to the .actuating means ot the toot-hed wheel by two rods composed of two parts sliding' in each other so that their ends bearing a mark can be moved along a rectilinear scale measuring the displacement ot the carriage in a direction parallel to its motion.

3. Ina typewriter in'which the carriage carrying the. paper is held in a given position by means of an escapement mechanism, the disengagement of which is controlled by hand or by the depression ot ya key, a carriage which can be moved in the return direction by a vcontrol part acting on the carriage by means ot a toothed wheel mounted on a countershatt and meshing with a rack secured to the carriage, a second toothed wheel mounted on the countershat and meshing with a second rack, an oscillating 'frame supporting the control part and connccted to said second rack by a rod pivoted at its ends, the length and the relative positions, of the fname and the rod being such, that the translation motion ot the control part is equally transmitted to that ot the carriage and vice versa.

4. In a typewriter in which the carriage carrying the paper is held in a given position by means' olE an escapement mechanism, the disengagement of which is controlled by hand or by the depression ot a lrey, a carriage which can be vmoved in either direction by a control part, a rack secured to the carriage, a toothed wheel mounted on a countershatt and meshing with said' rack, a second toothed wheel mounted on the countersha'ft and meshing` with a rack operated by said control part through a systen'i ot rods, and a helical spring carried by the counterslmlit, the tension ot' which produces the ad fance of the carriage in the direction permit-ting writing, after the disengagement of the escapement mechanism due to the depression oi a key.

In a typewriter in which the carriage carrying the paper is held in a given position by means of an escapment mechanism, the disengagement ot which is controlled by hand or by the depression of a ltey, a carriage which can be moved in either direction by a contiol part, a rack secured to the carriage, a toothed wheel mounted on a countershaft and meshing with said rack, a second toothed wheel mounted on the countersha'ft and meshing with a rack operated by said control part through a system of rods, and a helical spring carried'by the countershatt,

ion,

the tension oi" which produces the advance oi the carriage in the direction permitting Writing, after the disengagement of the escapment mechanism due to the depression of a i hey, the said spring being set by the carriage being moved in the opposite direction.

G. In a typewriter 1n which the carriage cinrj,"ingl the paper is held in a given posi- Vtion by means ot an escapment mechanism,

tivo rods with handles, said rods being; conpled together in order tobe moved together during the displacement ot the carriage, While being able to rotate independently, one of the rods beingl intended to control the escapmelrr for the displacen'ient of the carriage in the direction ot 'Writingand the other being` intended for movingthe carriage, in the 'return direction iile acti g ultimately in the line spacing' mechan-isni.

7. in atypewriter in which the carriage carryingl the paper is held in a given position by means or' an escapement mechanism, the disengagement of which is controilcd by hand or by the depression ot a hey, a carriage which can be moved in either direction after the disengagement ot the escapement mechanism by means of acontroi part, the movement ot' the carriage being brought about by the action of a spring which constantly exercises a pull on it in a given direction, said spring acting on a couiitershat't which carries two toothed Wheels rotating,` inl opposite directions, one or the other oi' the said Wheels being` caused'to mesh with a rack provided on the carriage.

S. In a typewriter in which the carriage Carli-Jing the paper is heid in agiven position by means ot an escapement mechanism, the disengagement ot which is controlled by hand or by the depression of a key,A a carriage which can be moved ini either direction after the disengagement of the escapement niechimism by means of a control part, the Vmovement oi' the carriage being brought about by the'action of a spring which constantly exercises a pull on it in a given direction, said spring producing the rotation of two toothed Wheels iotating in opposite directions, one or the other ot the said Wheels being caused to mesh with a rack provided on the carriage, the displacement ei said reich relatively to the carriage by reversing the direction of m'oveiiientT producing simultaneously the disengagei'nent of the escapenient mechanism corresponding;-to, the direction ot traveiling to be no'longer utilized and the rcengageii'ient of said*y escapeinent mechanism corresponding to the direction oi movement to be adopted.

9. A typewriter in which thecarriage-carryingfthe paper is heldin a given position by means of an cscapement mechanis1nthe-dis eng-agement oi' whicl'i'iscontrollcd by hand or by the depression lot a key, ak carriage which can be moved in either direction after the disengagement ot the escapon'ient mecha.- nism by means of a control part, the movement o'f the canriagc. being` brought about by the action ot' a spring which constantly eX- erciscs pulll on-ii, in given direction, said spring beingl adaptedl to produce the antonin-tic. movement of the carriage in both directions, by acting onit through a reversing mechanism,. the csoapement mechanism acting through a toothed pinionv on a rack provided on the carriage, a second adjustable rack secured to the carriage-g andmeshing -with aforesaid reversing; mechanism, said rack carrying a longitudinal` trame, the Wo liu 'e-s-ides otl which have the shape ot racks, either one or the other ot these sides being brought into engagementwith the pin.- ion driven 'oy the escapement.

in testimony Whereot l aiiix my signature.

HENRY PEETERS,

Images