US1278878A - Type-writing machine. - Google Patents

Description

P. DE CLAMECY.

TYPE WRITING MACHINE,

APPLICATION FILEDMAR. 6, 1916.

Patented Sept. 17, 1918'.

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TYPE WRITING MACHINE.

APPLICATION FILED MAR-6,1916.

1,278,878 Patented Sept 17,1918

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TYPE WRITING MACHINE. APPLICATION FILE'D MAR. e. 1916.

Patented Sept. 17, 1918.

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anvewto a 046' cczzhuacy @151 his Gnome BEST AVAILABLE. copy PHlL-IIIFILE DE CLAMECY, 015 BOSTON. MASSACHUSETTS, ASSIGNOR T0 CORONA TYPE- WRITER COMPAit IY, INCL. ll. CbRPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

menu-"mum Specification of Letters Patent.

Pa'itented iilept. M, 15918.

Application filed March 6. 1916. Serial No. 52,407.

To all whom 1'2 777 (13/ concern .l'ie. it known that l. .Pnnarrn on (H.UHK a citizen of the United States and a resident of Boston, county of Suffolk, and State of l iiassachuseth have invented certain new and useful improvements in 'llvpe-Wiriting lllachines. of which the following is a full, clear, and exact description.

This invention relates more particularly to the ribbon mechanism oi loldable front-- strike or other visible lypewriting niachines;

(the of the principal objects of the invention is to provide a typewriting maehine in which the platen .earriagjg'e and its support may be folded rearwardly and down hardly within the main frame of the machine. and a part oi the ribbon mechanism adapted also to told to a compact position but independently oi the folding" movement ot the platen carriage in order that those parts normally above the frame of the machine may be moved from such position to a more compact one thus adapting the machine for transportation and other purposes.

A urtl 1' object ot the invention is to provide simple and ellicient ribbon mech- "anism and operating means thereto! \vhieh is adapted to move the ribbon lengthwise in either direetion and which permits part of the ribbon to be moved With its holding means to a compact position independent of the lengthwise feed mechanism.

A still further object. of the invention is to provide simple and ctiicient means whereby ribbon spools may be trietioually held against too free movement.

With these and other objects in view, the invention will be hereinafter more pariicln larly described with re terenee to the accompanying drawings, which form a part at this application, and will then be pointed out in the claims at the end of the descrip tion.

In the drawings. l ignre l is a longitudinal section, partly in elevation. of one form of the machine embodrin e the invention.

l ie'.

is a front elevatioin is a partial plan view.

Fig. -l. is a 't'ragmentary view, partly broken awaynof a part of the universal bar Ce v2 and part of the mechanism opi' rated thereby tor moving the ribbon spools.

Finds an enlarged fragmentary view of the knee or knuckle joint of the two-part key-operated levers to adapt one part to fold relatively to the other; and

lfiig. 6 is an. enlarged section, partly in elevation, of the retaining pin tor holding the platen carriage against :lolding movement The main frame or main frame part 10 has upright corner pillars or. posts 11 with the usual rubber tips or feet 12 and connecting the posts at the lower portion tbere of is a base 13. At the upper portion of the main frame part is a top plate or member H and there may be side plates if desired, it being understood that the frame, or main tranie part, may be of the usual or of any preferred constructiml. At the forward portion of the machine is a keyboard frame part 15. This luvvboard frame part 15 is hinged at 10 to the main frame part and at the outer portion thereof may be provided with rubber feet of the usual kind. The keyboard frame part is tray-like in form and is adapted to fold upwardl and inwardly as shown in dotted lines in Fig. 1. The hinge or pivot 16 is in the Form of bolts located on opposite sides of the main frame part in alinement, and said bolts have threaded stems which are engaged by thumb nuts 17' which assist in holding the keyboard 'l'rame part in its folded and in its normal operative position. This keyboard frame part 15 at its inner portion provided with an abutting surface 18 which adapted to engage a substantially L-shaped spring 19 secured to the frame base 13 so as to position and hold said frame part in :1. normally horizontal position, and in the folded position of said frame part the latter is retained in such position by means of a spring 20, one end of which is secured to the under surface of the frame part .13 or otherwise, held as desired, the thumb nuts 17 serving as additional holdinganeans for said frame part. I

A keyboard 21 is mounted to move with the keyboard frame part 15. This keyboard may be oi a universal or standard kind and comprises keys 2:3 which are arranged in banks or groups and are mounted upon the upper ends of vertical portions oit levers The levers 2,3 are each formed in two parts 24, and 25. The parts A and are in alinement when in a normal operative position. and all of the parts of said levers are pivotally held to a transversely extend-- ing rod 26. l he rod Qt; is held in the mam frame part of the machine between the lorward corner posts 11 of the main frame part or in any other desired way. The parts 25 of the key-operated levers extend horizontally and are in alincment with the horizontal portions of the parts 24%, and on one of said parts, as the part 2% of each lever. is a shoulder 2'? which is adapted to engage a shoulder 28 of the part 25 when in a normal operative position as shown in Fig. 1, so that on the depression of one of the keys 22 the inner end of the part 25 of the twopart lever on which the key is mounted will be forced upwardly. Each lever is restored from a depressed position to its normal operative position by a spring 29 one end of which is secured to the base 13 and the other end passed through an aperture in the key lever part 25. The shoulders 27 and QJand the mountings'of the parts 2 and 25 provide a knee or knuckle joint which adapt all of the parts 2% of all of the keyoperated lovers to fold relatively to the parts as shown in dotted lines in Fig. 1.

The inner ends of the parts 25 of the keyoperated levers, 23 have a pin 30 and each pin is adapted to move in a slot 31 of an arm The arm forms a part of the bell-crank lever 33 and each bell-c ank lever is pivotally held in a bracket 34 extending upwardly om the base 13 or to a common pivot rod preferred The arm 35 of each bell-crank lever 88 is pivotally held by a knee or other joint at its outer end 36 to an upwardly extending link 37, and said link '37 at its upper end is pivoted at 39 to the short arm 40 of a type-bar 4-1. Each typebar 41 is adapted to have a plurality of type or characters thereon according to whether a single case shift or double case shift is employed. The typebars are adapted to rest at their forward ends upon a felt, rubher or other cushion 42 and are arranged in a curved path within the type basket 43. said type basket being suitably held in the main frame part of the machine in such a way that when a key-operated lever is moved on the depression of a key, the actuation of its cooperating bell-crank lever' 33 will force a link 37 downwardly and this will cause one of the type-bars tomove the type upwardly and rearwardly to make an impressirm upon the work sheet about the platen 44 in the usual way. 4

As a means to lock the keys and the'foldv able of the key-operated. levers to fold and untold together, a bar 45 extends trans vcrsel y of the machine over the parts 24 and under the parts 24 a substantially U- shaped rod iii. lhe rod 16 is pivotally mounted between the sides of the shallow frame part 15 and isadapted to be "forced to the posi ion shown in dotted lines in Fig. 1 so that the transversely extending portion 17 will lie-directly under the parts A of the key-operated levers thus holding the parts. 21 of said levers which fold between the thansversely extending bar and the portion 4.7 and thereby prevent their disarrangenient. The bar may have a rubber or other strip forming an engaging surface for the key-operated levers, and the rod 4 may have a knob or handle to move the same, it being understood that the key-lever parts Qlare not held so tight between the bars 46 and 4:7 as will prevent such relative movement of the keyboard frame-part 15 and the key-lever parts 24 as is necessary because of their different pivot points. If desired thecpivots of the levers and the key board frame part may have a common axis or pivot rod or shaft.

The platen 4-1 is mounted'upon a platen carriage 48. This platen carriage 4-8 is adapted to travel transuersely oi the machine on a foldable support. 4 5). This support 49 has two i'nembers 50 and 51 which are hinged together at at the upper portion of the machine. Thesupport member 50 rests when in a normal operative position upon a transversely extending bar forming a part of the vertically movable member 50 of the platen carriage support. The platen carriage maybe variously constructed. As shown it comprises end pieces or brackets 5 1 which extend upwardly from a carria has a 55 and said base may be held to travel transversely of a carriage bed. The carriage bed may extend rearward far as the hinge 52 or maybe supported between toldable arms or in any other desired way. The carriage end pieces 5i support the axis oiashatt 56 of the platen and said end pieces may also support a paper apron 57 in which may be mounted a pressure or feed-roll there being paper fingers and such other parts as areumzally cnuilovwl to hold and guide the work about the platen.

lVhile the platen carriage with its bed forming one member of the carriage su )port is adapted to fold rearwardly and ownwardly so as to extend within the main frame part 11 and between the sides thereof when in a compact position'as shown in dotted lines in Fig. 1, the platen carriage and both members of the support are adapted to be shifted for upper case characters when in a normal operative position; though itwvill be understood that the platen carriage "may have two shift movements inso shown in Fig.

55 extendin 6i) whiclrmay be in the form of 21 homers a stead of one, or the type basket itself may be shifted as in some forms of writin machines, if desired. The particular form of case shift meclmnism is not described in detail as such mechanism may be of any suitable construction.

The platen carriage and its support may be held in its normal operative position against relative ba-clnvard folding movement 10 in any desired way. As shown. a pin or stem 59, Fig 6, has a knob or head 60 thereon and is normally forced inward by a spring 61. The pin 59 is adapted to engage an aperture 62 in one end of the carriage bed or other part and lock said bed to the vertically moving supporting member 50 so that the platen carriage cannot :t'old rearwardly until the pin is released. The platen carriage may also be held against a swinging 2a or free movement when in its folded compact position by a releasable pin or part (33 or otherwise, which is held to the frame of the machine and is adapted to engage under a part of the foldable carriage supporting member 51 when in its compact position, as

shown in Fig. 1.

The ribbon holder 64:, is located substantially centrally of the machine and is adapt ed to support a ribbon in position to cover a the printing point on the platen ll. The ribbon holder 64-. is pivoted at ($5 to a part, of the main frame and on opposite sides of the holder, adjacent: to its pivot 05, are springs (56 and (37. The spring (56 is secured 35 to the foldable part of the carriage supporting member 51 to fold therewith while the spring; (37 is held to a lixed' part. The spring tit of greater strength than the sprimg (57 so that when the spring 66 is in the position 1 the holder will he held against downward folding movcmeulnbut when the spring (36 is folded away from the holder (bl to the position shown in dotted lines in said t'i 'ure the spring' it? will force the holder rearwardly and downwardly on its pivot to a compact position. That is, the ribbon holder will fold over in a substantially horizontal position, carrying the rib bon held thereby and may be restored to its normal 0 erativc )OSlllOIl manuallv or otherwise when the platen carriage is its normal operative position. from the holder ill passes spools HS and restored to The ribbon about ribbon (39 mounted upon downwardly arms To. The ribbon spools may be detachahlyheld to permit the ribbons to be readily replaced and said ribbon spools may each be irictionally held to its support against too free movement by a spring 71 strip as a disk as preferred. The ribbon spools may have a toothed disk portion or ratchet wheel 72 as a part thereof and adapted to engage the tcelhot (he-ratchet wheels are pawls 73.

ratchet wheels held to the spools, .to the universal bar to move operated levers and has upwardly extending.

ends or parts 77 which are guided in lubula r posts or guides 78. The universal bar is normally forced downwardly in the path oi the key-operated levers by springs 79, and when said bar is operated by the key-opcrated levers the ribbon spools will be rotated as already described. The pawls 73 and the direction of the teeth of the ratchet disks 7:2 may be reversed to permit the spools to be rotated during the downward movement of the universal bar instezul of the upward movement thereof.

While the drawing shows both pawls T3, in engagement with the teeth oi the ratchet whee ot' the ribbon spools only one pawl is in engagement at a time, and these pawls may be moved to engagen'ient or disengage ment manually and imlepcndently or they may be moved simultanemlsly as is common in some forms of lypewriting machines, whereby one pawl is disengaged when the other pawl is engaged in order that the direction or feed of the ribbon may be reversed at will The escapcment mechanism has not been described herein and so far as the present invention is concerned such mechanism may be oi any suitable construction. The escapcmcut mechanism.key action, platen shift and certain other features shown are not claimed herein as they form part of separate applications filed by me.

Having thus described my invention. what; 1 claim as new and desire to secure by Letters -Patenl: is I 1. In a typewriting machine, the combination of a t'ramc lu'y-opcral'ed levers pivotally supported in the frame intermediate their ends, a universal bar extending transversely above the rear ends ol the lccy-operaled levers and adapted to be engaged and elevated thereby, upwardly extending: posts held tolhe universal bar at their lower ends, tubular guides l'or said posts held to the frame, ribbon spools, horizontally extending shalts for said spools held to the frame, arms held up and down therewith, and pawls carried by said arms adapted to engage and rotatethe ratchet wheels when the universal bar is reciprorated by the lrey-imei'atcd levers.

in a typewriting machine, the combination of a frame, key-operated levers pivotally supported in the frame intermediate their ends, a universal bar extending trans versely above the rear ends of the l ey-operated levers and adapted to, be engaged and elevated thereby, upwardly extending posts held to the universal bar at their lower ends, tubular guides for said posts held to the frame, ribbon spools, horizon-tally extending shafts for said spools held to the frame, ratchet wheels held to the spools, arms held co-the universal bar to move up and down therewith, pawls carried by said arms adapted to engage and rotate the ratchet wheels when the universal bar is reciprocated by the key-operated levers, and resilient means for normally forcing the universal bar downwardly; I

3. In a typeWrit-ing machine, the combination of a frame, key operated levers pivotally supported in the frame intermediate their ends, a universal bar extending transversely of the frame abovethe rear ends of said levers and adapted to be engaged and elevated thereby, upwardly extending posts held to the universal bar at their lower ends, tubular guides for said posts held to the frame, ribbon spools, horizontally extending shafts for said spools held to the frame, ratchet wheels held to the spools, arms held to the universal bar to move up and down therewith, pawls carried by said ar for rotating the ratchet -wheels, and springs coiled about said upwardly ex'lemling posts and interposed between the universal bar and said tubular guides for returning the universal bar to its normal position.

4. In a typewriting machine, the combination of a frame, ribbon spools, horizontally extending shafts for said spools held to the .frame, ratchet wheels held to said spools, a

t substantially U-shaped universal bar having a portion extending transversely of the machine and vertically extending end. members, means held to the f awe and engaging the'end members of the universal bar for slidably guiding said bar vertically, arms held to the universal bar to reciprocate verticall y therewith, pawls carried by said arms for rotating the ratchet wheels, and key- 7 operated levers pivotally held to the frame intermediate their ends, the rear ends of said essors levers extending under the transversely extending portion of the universal. bar and being adapted to engage and elevate the bar when the keys are depressed.

substantially U-shaped universal bar having a portion extending transversely of the ma chine and vertically extending end members, means held to the frame and engaging the .end members of the universal bar for slidablv guiding said bar vertically, arms held to the universal bar to reciprocate vertically therewith, pawls carried by said arms for rotating the ratchet wheels, and springs interposed between said guiding means and the transversely extending portion of the universal bar for normally forcing the universal bar downwardly.

7. In a typewriting machine, the combination of a frame, ribbon spools, horizontally extending shafts for said spools held to the frame, ratchet wheels held to said spools, a substantially ll-shaped universal bar having a portion extending transversely of the machine and vertically extending end members, means held to the frame and engaging the end members of the universal bar for slidably guiding said bar vertically, arms held to the universal bar to reciprocate vertically therewith, pawls carried by said arms for rotating the ratchet wheels, key-operated .levers pivot-ally held to the frame intermediate their ends, the rear ends of said levers ext-ending under the transversely extending portion of the universal bar and being adapted to engage and ele ate the bar when frame, ribbon spools, horizontally extending shafts for said spools held to the frame, ratchet Wheels held to the spools, arms held to the universal bar to move up and down therewith, pawls carried by said arms adapt ed to engage and rotate-the ratchet Wheels when the universal bar is reciprocated by the key-operated levers, and springs frictionally engaging ends of the spools. f

9. In a typewriting machine, the combination of a, frame, ribbon spools, horizontally extending sh-Lifi's for said spools hold to the frame, ratchet wheels held to said spools, a

substantially U-slmped universal bur .lmving a portion extending transversely of the 1111ichine and vertically extending end members, moans held to the frame and engaging the end members of the universal bar for sliclably guiding said. bauvertically, arms hold to the universal bar to reciprocals vertically therewith, pziwls curled by sand arms for rotating the ratchet wheels, and springs having the r f ee ends .ljriouonully engaging the ends 01: said spools.

This specification signed this id day of 16 March, A. D. 1916.

PHILIPPE DE CLAMEOY.

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