US1494716A - Typewriting machine - Google Patents

Typewriting machine Download PDF

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US1494716A
US1494716A US529415A US52941522A US1494716A US 1494716 A US1494716 A US 1494716A US 529415 A US529415 A US 529415A US 52941522 A US52941522 A US 52941522A US 1494716 A US1494716 A US 1494716A
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Prior art keywords
vibrator
universal bar
type
actions
key
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US529415A
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George A Seib
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REMINGTON TYPEWRITER Co
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REMINGTON TYPEWRITER CO
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J25/00Actions or mechanisms not otherwise provided for
    • B41J25/20Auxiliary type mechanisms for printing distinguishing marks, e.g. for accenting, using dead or half-dead key arrangements, for printing marks in telegraph printers to indicate that machine is receiving

Description

May 20 1 924.
G. A. SEIB TYPEWRITING MACHINE Filed Jan'.
16, 3 Sheets-Sheet 1 d wl WITNESSES ZWM- May 20 1924. 1,494,716
G. A. SEIB TYPEWRITING MACHINE F iled Jan. 16, 1922 3 Sheets-Sheet 2 WITNESSES I I Qw wfm 5 K; mm, W4 iwwQ,
May 20 Q 1924.
G. A. SEIB TYPEWRITING MACHINE Filed Jan. 16, 1922 3 Sheets-Sheet 4 r NW. m-um! I ww WITNESSES Patented May 20, 1924.
NlTED STATES PATENT OFFICE.
GEORGE A. SEIIB, or ILION, NEW YORK, ASSIGNOR T0 REMINGTON TYPEWRITER comrANY, or ILION, New YORK, A CORPORATION OF NEW YORK.
TYP EWRI 'IING MACHINE.
Application filed. January 16, 1922.. Serial No. 529,415;
To all whom it may concern: v I
Be it known that I, GEORGE A. SEIB, citizen of the United States, and resident of llion, in the county of Herkimer and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.
My invention relates to typewriting machines and more particularly to accent writing or dead key mechanism for such machines. I
The main object of the invention, generally stated, is to provide simple, inexpensive and eflicient means of the character specified.
A further object of the invention is to so combine such mechanism with polychrome ribbon mechanism that either color or field of ribbon brought into use according to the setting of said ribbon mechanism, will be presented to the printing point at the actuation of an accent writing or dead key type action, as well as at an actuation of an ordinary type action. I
A still further object of my invention is to provide means of the character specified above, which in the main is in the nature of an attachment that may readily be incorporated in existing typewriting machines without, modifying, or materially modifying, the structural features of said machines as they now exist.
To the above and other ends which will hereinafter appear my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following specification and particularly pointedi out in the appended claims.
In the accompanying drawings wherein like reference characters indicate cor-- responding parts in the various views,-
Figure l is a vertical fore-and-aft fullsized sectional view, with parts omitted, of a Remington portable machine embodying my invention.
Figure 2 is a fragmentary bottom plan view of a portion of the same.
Figure 3 is a detail bottom plan view of some of the ribbon-throw devices rep resented in Fig. 2, but showing the controlling wire or member set to bring a different field of the ribbon, or color, into use.
Figure 1 is a detail fragmentary perspective View of the means for controlling the escapement and ribbon vibrator from an ordinary type action, and for controlling the ribbon vibrator from a dead key withigure 7 is a detail perspective view of' said modified form of actuating device shown detached and before removing oer-- tain of the contacts or fingers thereof.
I have shown my invention embodied in the present instance in a Remington portable machine, which is somewhat like that shown for example in the patent to Joseph B. Holden, No. 1,397,166, dated November 15, 1921, and in which the invention may be readily incorporated without modifying, or materially modifying, the structural features of said machine in effecting such incorporation. It should be understood however that the invention is not restricted to use in a machine of this style but may be employed wherever found available.
The means employed in the Remington portable machine for actuating the ribbon vibrator from the universal bar, and for controlling its action for polychrome work, is much like that shown in the above mentioned Holden patent, and this construction is employed with very slight modifications in the present construction, as will hereinafter appear. I
Referring first to the general construction of the machine, the mainv outer sheet metal frame 1 contains an inner sheet metal frame 2 secured thereto, and which supports various working parts of the machine. A type bar segment 3 is supported by the frame 2, and is slotted to receive the heels of type bars pivoted to the segment at 4 and striking rearwardly and downwardly against the top of a platen 5. I have represented onl three of the type'ibars and their associmeral 6 represents one of the ordinary type bars at about the center of the system where as the reference numerals 7 and 8 indicate two type bars at the right-hand side of the system which carry types for writing accent marks in both upper and lower case. The ordinary type bar 6 may strike at a common printing center and if desired the accent types may print above or below said center. In such a case the accent mark is written first and the character to be accented is written afterwards. I prefer, however, to offset the type blocks carrying the accent marks so as to print one letter space to the left of the common printin center, as disclosed in my application, br. No. 476,768, filed June 11, 1921. By such a construction the character to be accented may be written first and the accent afterwards added above or below the writtencharacter with the aid of a dead key, as pointed out in said application. All of the type bars 6, 7 and 8 may be mounted in guide slots that radiate from a common center, as is commonly the case. I prefer, however, to mount the accent type bars 7 and 8 in non-radial slotsas disclosed in my said previously filed application. Since however this feature, as well as the off-setting of the accent type blocks pointed out above, are claimed in my said application and are not claimed herein, I make no specific showing of these features in this case.
In the present construction each of the type bars has its heel formed with segmentally arranged teeth' '9 which mesh with similar teeth 10 on a sub-lever 11. These sub-levers are pivoted at 12 on a slotted support 13 carried by the fixed supporting frame 2 of the machine. The forward end of each sub-lever 11 is pivoted at 14 to a depending link 15, which in turn is pivoted at its lower end, as at 16, to a sub-lever 17 fulcrumed at 18 on a combined fulcrum and comb plate 19. Each lever17 also is pivoted at 20 to a depending link 21 pivoted at its lower end, at 22, to a key lever 23, 24 or 25 provided with a finger key. The finger key for the lever 23 is designated by the reference numeral 26, and those for the levers 24 and 25 are indicated by the reference numerals 27 and 28 respectively. The links 21 for the ordinary, or non-dead key, type bars 6 are connected to the key lever 23 and other similar key levers, whereas the links 21 for the dead key type bars 7 and 8 are connected respectively to the key levers 25 and 24.
It is intended in the present instance to mount the platen 5 in a carriage which is supported for bodily case shifting movement fore-and-aft of the machine, to bring either of the types29 and 30 into use, as in the I Remington portable machine, and as illustrated in the patent to Joseph B. Holden,
panying drawings but may be of any suitable character, such as those empoyed in the Remington portable machine, or such as those disclosed in said patent to Holden, No. 1,386,256. It is also intended in the present instance to effect a movement of the universal bar frame together with some of the parts associated therewith, as in the Remington portable machine, and somewhat in the manner disclosed in the patent to J o seph B. Holden, No. 1,347,632, dated July 27, 1920, and such construction will now be described.
The case shift frame comprises sheet metal side plates 31 that extend fore-and-aft of the machine and are pivotally connected at their forward ends, as at 31 to depending links 32, pivoted on inwardly projecting pins 33 on the fixed frame 2 of the machine, and prevented from accidental detachment therefrom by cotter pins 34. The rear end portion of each side plate is bent inwardly to form a supporting piece or flange 35, to which a carriage support or casting 36 is detachably secured by screws 37. The member 36 constitutes a part of the shift frame and is pivoted at 38 to upright arms 39 fixed on a rock shaft 40, pivoted at its ends to the frame 2 of the machine. The carriage supported by casting 36, together with other parts mounted on or supported by the case shift frame, are thus adapted to receive a movement with said frame fore-and-aft of the machine on the arms 39 and links 32, springs 4O tending to return the shift frame to normal osition. Among the parts thus shifted with the shift frame is the universal bar frame and parts carried thereby, as well as the dog rocker 41, and a feed rack 41 car ried by the carriage. These parts therefore maintain the same relation in either case position to which the shift frame may be moved. sheet metal lever-like side plates 42, pivoted at 43 to the side plates 31 of the shift frame. As shown at the right-hand side of Fig. 2 the head of each pivot screw 43 has a pivotal bearing in a side plate 31, each screw being held against detachment from the universal bar frame by a nut 44. The rear end 45 of each plate 42 coacts with an extension or stop 46 on the associated flange 35 of the shift frame, to limit the return movement of the universal bar frame on its pivots 43 under the action of returning springs 47. Each of these springs is connected at one end at 48 to the side bar or plate 42 of the universal bar frame, and at its opposite end to a laterally projecting pin 49 extending from the side bar or plate 31 of the shift frame. Each side plate 42 The universal bar frame comprises i is provided with an inwardly extending flange 50 to which is riveted a sheet metal cross bar 51, to rigidly connect the side plates 42. The cross bar 51 is bent into sub stantially U-shaped formation in cross-section throughout most of its length, to give greaterrigidity thereto. Each side plate 42 also is provided with an inwardly extending flange 52 to which is riveted a sheet metal universal bar, designated as a whole by the reference numeral 53; said universal bar constituting a further tie between the side plates of the universal bar frame. This universal bar has upwardly and forwardly bent integral contact devices or curved fingers 54, one arranged beneath each of the key levers 23 of the non-dead key type actions. Those fingers 54 which ordinarily would be beneath the dead key levers 24 and 25 are broken off or detached. It follows that each of the key levers 23 of the ordinary type actionsis effective'to actuate the universal bar, but the dead key levers 24 and 25 are ineffective thereon. Secured to'the universal bar by a screw 55 is a sheet metal combined connecting and actuating member, designated as a whole by the reference numeral 56. -As best shown in Fig. 2 this member has "an off-set foot piece 57 secured by screws 58 on the upper side of the cross bar 51. The member 56 also has a rearwardly extending actuating arm 59 which carries a laterally projecting pin or contact'60. This pin extends beneath an ear or contact 61 bent laterally from an arm 62-formin'g part of the dog rocker 41. The latter is mounted to oscillate on pivot screws 63 threaded into tapped openings in depending lugs on the casting 36 of the shift frame, the screws having lock nut 65 to prevent accidental displacement thereof. It
I will be understood therefore that an opera.-
tion of any key lever 23 is efiective to move the universal bar, causing the frame of the latter to be rocked and the dog rocker to be actuated by the contacts 60 and 61, and a letter space movement of the carriage to beeifected. However, no such letter space movement of the carriage will result from an actuation of either of the key levers 24 and 25 of the dead key type actions, although a printing of an accent mark will be effected. v
Whether the key actuated be that of one of the ordinary type actions, as the key 26, or that of one of the dead keys, as 27 or 28, itis necessary to interpose the ribbon66 in the path of the approaching type at each printing operation. In the present instance the ribbon vibrator 67 is mounted on a fixed type guide 68 to slide fore-and-aft of the machine in a slightly inclined plane, to cover and uncover the printing point, and also to shift with the case shift frame, as will hereinafter more fully appear. The
type guide is secured'by screws 69 to the type bar segment '3, whereas the ribbon vibrator is detachably connected a-t'i'O to a link 71, the lower end of whichv is pivoted at 72 to alever arm 73 of a vibrator actuating member, designated as a whole by the reference numeral 74. The member 74 is made of sheet metal and'formed with a sec ond arm 75 parallel for a portion of its length with the arm 73. A sheet metal bracket 7 6 is secured by screws;77 to the casting 36 of the shift frame and has perforated ears 78 which are received between theparallel arms 73 and 75 of the member 74. A detachable pivot pin 79 extends through openings in the arms 73 and 75and ears 78, to pivotally support the member 74 on the bracket 76. A coiled returning spring 80 surrounds the'pivot 79, and bears'at one end against the member 74 and at its opposite end against the bracket 76. This spring ere erts its force to return the member 74, and the vibrator connected therewith, to normal position after each actuation of the vibrator. The arms 73 and 75are. slotted to receive and permit a relative longitudinal movement of a so-called controlling wire or connecting member 81 to be effected. This member 81 constitutes 'an operative .connec-, tion between the universal bar frame and the member 7 4 for the transmission of movement from the former to the latter. The slot in the arm 75 through which the wire 81 passes is indicated at 82. The free end portion of the wire 81,'after passing through the slot in the arm 7 3 extends through a forked guide 82 formed as a part of the arm 73 and effective to prevent a displacement of the wire laterally in its slots. But said fork does not interfere with the longitudinal adjustment of the wire from the position shown in Fig. 2, to that indicated in Fig. 3, or vice versa. The wire 81 is bent at 83 so as to provide two parallel engaging portions 84 and 85 at-different distances. from the pivot 79 of the-vibrator actuating member 74, and at difi'erent distances from the pivotal center of the universal bar framei L. i 1
An actuating or lever arm 86 extends beneath the wire 81 between the parallel portions of the arms 73 and 75, and is formed a part of the member 56 secured'to the universal bar frame. At the actuation of a k'e'y lever 23 of an ordinary type action, the universal bar will be depressed moving the arm 86 upward and operating thei vibratorthrough the intermediate wire 81; The adjustment of the wire to the Fig. '2 position brings the part 85 of the wire into co-opera tive relation with the arm 86, and the leverage is' such that at this time'the vibrator will be moved" by the arm 86 at each actuation of a key 26 a distancesufiicient to bring the upper part, or say the black field a, of the ribbon to the printing point. W hen,
STA
however the wire 81 is shifted to the Fig. position, the part 84 of the wire will be positioned for co-operation with the arm 86, thus changing the leverage ratio of the parts by which the vibrator is actuated. An operation of the key 26 at this time effects a longer throw of the vibrator and brings the lower half, or say the red field b, of the ribbon into use.
I have described how the ribbon vibrator is actuated from the universal bar at each operation of an ordinary printing key 26 whether the wire 81 be set to write in one or the other of the two fields a and Z) of the ribbon, and how the operation of the universal bar also brings about an operation of the escapement mechanism. Since an operation of either of the dead keys 27 and 28 does not actuate the universal bar, it becomes necessary to actuate the ribbon vibrator independentl thereof and it is preferable, of course, to print the accent mark in the same color as the character to be accented. Thus, if the writing is being done in red, it is desirable that the accent marks also be written in-red, whereas, if the writing is being done in black it is desirable that the accent marks be printed in black. These results I accomplish by the special device or attachment of my invention co-operating with the parts hereinbefore described in a manner which will now be set forth.
Referring first to Figs. 1 to 5 incluslve it will be seen that a sheet metal bracket 87 is secured by screws 88 on top of cross bar 51 of the universal bar frame. This bracket has depending ears 89 that extend down in front of the cross bar 51, and are recessed in the rear edges thereof to form bearing openings 90 (see Fig. 5). These openings are closed at the rear by the cross bar 51 and receive a wire rock shaft 91 therein. The outer end of the rock shaft is provided with a forwardly extending integral arm 92 which terminates in an inwardly directed extension 93. This extension projects be neath the dead key levers 24 and 25 in a position to be actuated by each of said levers to rock the shaft 91. The opposite end of the shaft is provided with a downwardly and rearwardly extending integral arm 94 arranged at its rear end portion parallel with and adjacent to the actuating arm 86. Like the latter, the arm 94 co operates with the wire 81 either at the part 85 or 84 thereof, depending on the setting, or longitudinal adjustment, of the wire 2, write black or red, as shown in Figs. 2 and 3 respectively. It will be understood therefore that a depression of either dead key lever will be ineffective on the universal bar, so that no movement of the carriage is effected. But the rock shaft 91 will be rocked by a dead key lever, thereby elevating the arm 94 while the universal bar and the racer-1e actuating arm 86 connected therewith remain at rest, as shown in Fig. 5. This results in moving part 85 of the member 81 from the dotted to the full line position in Fig. 5, assuming that the parts are set so that the arm 94 coacts with the section 85 of the member 81 as shown. The arm 94 at this time moves the ribbon vibrator to bring the black field a of the ribbon to the printing point, exactly as such movement of the vibrator is effected by the actuating arm 86. The ribbon vibrator is given a greater or less extent of throw by the arm 94 depending upon the setting of the polychrome mechanism, or the wire controlling devices 81, to write red or black, the difference in throw being effected by the variable leverage mechanism in the manner set forth.
In Figs. 6 and 7 I have shown a slightly modified form of vibrator actuating oscillating device controlled by the dead keys. The construction shown in these views is intended for employment more particularly where type actions at different parts of the system are to be selected for accent writing or dead key construction. Where one or more type actions at an end of the system are to be employed as dead key type actions,
I prefer to employ the construction shown in Figs. 1 to 5 inclusive, but when a selection is to be made at will, or one or more intermediate actions are to be used for accent writing, then the construction disclosed in Figs. 6 and 7 lends itself more readily to employment in the machine. Thus referring to Figs. 6 and 7 it will be seen that I-provide a rock shaft 95, corresponding to the rock shaft 91, and mounted like the latter to turn in bearings in a sheet metal bracket 96 secured by screws 97 to the cross bar 51 of the universal bar frame. An arm 98 extends from this rock shaft, and like the arm 94 in the previously described construction, coacts in the same manner with the wire 81 to shift the ribbon vibrator. Intermediate of its ends the rock shaft is flattened at. 99 and has a sheet metal platelOO welded or otherwise fixedly secured thereto. Assume that the plate 100 is first made like that shown in Fig. 7 with a number of adjacent contacts or tongues 101 corresponding in position to a number of adjacent key levers, eleven such tongues or contacts being shown in Fig. 7. When mounted in the machine one of these contacts would extend beneath each of the first eleven key levers at the right-hand side of the machine. Any one or more of these eleven type actions may be selected for use as an accent'wri-ting or dead key type action. In the example shown in Fig. 6 I have selected the first (from the right) andthe fourth type actions for use as dead key actions. This requires that all oi the contacts 101 except those which are to stand beneath the first and fourth key levers 102, 103 respectively be out or broken off, and that the corresponding contacts 54 of the universal bar which lie beneath said key levers be broken or cut off, whereas all of the remaining contacts 54 "for the ordinary key levers 23 remain intact for co-operation therewith. In this manner any one or more of the first eleven type actions from the right may be selected for use as dead key type actions.
Any suitable means may be employed for adjusting the wire 81 longitudinally to either of the set positions shown in Figs. 2 and 3.
' In the present instance I show the means employed in the Remington portable machine, and which comprise a sheet metal bell crank lever 104 formed with an upwardly extending fork 105. The wire 81 near its righthand end, is bent to provide a section 106 which extends fore-and-aft of the machine and passes through the fork 105. From this point the wire extends to the right where it forms a section 107 that extends througha guide opening in a guide or bracket 108 secured to the right-hand flange 35 of the shift frame. The guide 108 aids in supporting the wire member 81, and in guiding it in its longitudinal adjustment. The bell crank 104 is pivoted at 109 on a bracket 110 secured by screws 110 to the right-hand side plate of the frame 2. A rod 111 is connected at its rear end to the bell crank 104, and at its forward end to a lever 112 pivoted at 113 on a bracket 114 that is secured to the righthand side plate of the frame 2. The bracket 114 is formed with a guide slot through which the upper end portionof the lever 112 passes, and with detent means therefor, and also is provided with suitable indicating means. The upper end of the lever 112 forms a finger piece 115 by which it may be shifted forward and back to move the wire member 81 longitudinally to either the Fig. 2 or Fig. 3 position.
It will be understood that during a case shifting movement of the parts the wire member 81 shifts with the case shift frame, the section 106 of said member at this time slidin fore-and-aft of the machine in the fork 105 of the bell crank 104. The latter,
however, remains in operative connection with the member 81 to adjust it in a like manner irrespective of the position to which the member 81 may be shifted with the shift frame.
It also will be understood'that the carriag'e, feed rack, dog rocker, universal bar,
ribbon vibrator and actuating means therefor including the rock shaft 91 (or 95), actuating members 86 and 74, and the controlling member 81 all move together fore-andaft of the machine with the case shift frame and do not have their relations altered by case shift movement of the latter. By shifting the member 91 (or 95) and. the parts car= ried thereby, withthe shift frame and correlated parts in the manner described, I am enabled, by very simple means which in the main is in the nature of an attachment, to readily embody in the Remington portable machine, simple and highly efficient dead key mechanism without materially modifying the structural features thereof, as they now exist. Moreover-,the simple addition of the rock shaft 91 (or 95 as an attachment, avoids bringing about undue complications in the mechanism of the machine, in which the parts are already compactly arranged and confined within a small space, addsbut little weight to the machine, and enables the dead key mechanism to be readily added to existing machines. 1 K
Various changes may be made without departing from my invention.
What I claim as new and desire to secure by Letters Patent, is
1. In a typewriting machine, the combination of a case shift frame, escapement mech anism including a universal-bar carryingframe shiftable with said shift frame, a ribbon vibrator shiftable with said case shift frame and actuated by the universal bar, a rock shaft carried by said universal-bar frame and shiftable therewith and operative to move the ribbon vibrator independently of the universal bar, and an accent writing type action inoperative on the universal bar but operative on said rock shaft to turn it and actuate the vibrator. r
2. In a typewriting machine, the combination of a ribbon vibrator, a universal bar operative to actuate the vibrator, a rock shaft operative to actuate the vibrator independently of the universal bar, a case shift, frame with which all of said parts are operatively connected to receive a case shifting movement therewith and maintain the same relation in either case position of the shift frame, and an accent writing type action inoperative on said universal bar but co-operative with said rock shaft in either position to which it may be shifted with the shift frame to rock the shaft and actuate the vibrator. I
3. In a typewriting machine, the combination of a universal bar, a series of key levers arranged above and operative on said universal bar, one or more accent key levers arranged above but inoperative on said universal bar, a ribbon vibrator, intermediate actuating connections between said universal bar and vibrator, a rock shaft arranged beneath the accent key levers and operative only, thereby and co-operative with certain of said intermediate actuating connections to actuate the ribbon vibrator independently of the universal bar, a case shift frame, and means whereby said vibrator, universal bar, intermediate actuating con nections and rock shaft, shift with said case shift frame and maintain the same relation in either position to which the latter may be shifted.
4. In a typewriting machine, the combination of a I case shift frame, escapement mechanism, a ribbon vibrator, ribbon vi brator actuating means including means adapted to be set by hand to vary the extent of throw of the vibrator, an accent writing type action, and additional vibrator actuating means cont-rolled only thereby and operative to actuate the ribbon vibrator and give it different extents of throw depending on vthe setting of said hand set means and without operating the escapement mechanism, said additional means including a rock shaft carried by the case shift frame and shiftable therewith and operative in either shifted position to actuate the vibrator.
5. In a typewriting machine, the combination of acase shift frame, escapement mechanism including a universal-bar carrying-frame shiftable with said shift frame, a ribbon vibrator shiftable with said case shift frame, intermediate actuating connections between said universal bar and vibrator and including hand set means to vary the extent of throw that may be given the vibrator by the operation of the universal bar, a rock shaft carried by said universal-bar frame and shiftable therewith and operative to move the ribbon vibrator independently of the universal bar variable extents depending on the setting of said hand set means, and an accent Writing type action inoperative on said universal bar but operative on said rock shaft to turn it and actuate the vibrator.
6. In a typewriting machine, the combination of a ribbon vibrator, a universal bar, intermediate actuating connections between said universal bar and vibrator and including hand set means for varying the extent of throw given to the vibrator, a rock shaft oooperative with certain of said intermediate actuating "connections to operate the vibrator and give it varying extents of throw depending on the setting of said hand set means, a case shift frame with which all of said parts are operatively connected to receive a case shifting movement therewith and maintain the same relation in either case position of the shift frame, and an accent writing type action inoperative on said universal bar but co-operative with said rockshaft in either position to which it may be shifted with the shift frame to rock the shaft and actuate the vibrator.
7. In a typewriting machine, the combination of a universal bar, a series of key levers arranged above and operative on said universal bar, one or more accent key levers arranged above but inoperative on said universal bar, a ribbon vibrator, intermediate actuating connections between said universal bar and vibrator and including hand set meagre means for varying the extent of throw of the vibrator, and a rock shaft arranged beneath the accent key levers and operative only. thereby and co-operative with certain of said intermediate actuating connections to actuate the ribbon vibrator independently of the universal bar and move it variable extents depending on the setting of said hand set means.
8. In a typewriting machine, the combination of a universal bar, a series of key levers arranged above and operative on said universal bar, one or more accent key levers arranged above but inoperative on said universal bar, a ribbon vibrator, intermediate actuating connections between said universal bar and vibrator and including hand set means for varying the extent of throw of the vibrator, an actuating device arranged beneath the accent key levers and operative only thereby and co-operative' with certain of said intermediate actuating connections to actuate the ribbon vibrator independently of the universal bar and move it variable extents depending on the setting of said hand set means, a case shift frame, and means whereby said Vibrator, universal bar, intermediate actuating connections, and hand set means, shift with said case shift frame and maintain the same relations in either position to which the latter may be shifted.
9. In a typewriting machine, the combination of a ribbon vibrator, a lever arm operatively connectedto said vibrator, a universal bar, a lever arm operated thereby, a connecting device for operatively connecting said lever arms to actuate the vibrator from the universal bar, said connecting device having two off-set parallel sections, hand actuated means for moving said device endwise to vary the positions of the sections and accordingly vary the leverage ratio and thus vary thethrow of the vibrator, an accent Writing type action inoperative on the universal bar, and means controlled by said type action and acting on said connecting device to actuate the vibrator independently of the universal bar and give it an extent of throw determined by the setting of said device. v
10. In a typewriting machine, the combination of a ribbon vibrator, a lever arm operatively connected to said vibrator, a universal bar, a lever arm operative thereby, a connecting device for operatively connecting said lever arms to actuate the vibrator from the universal bar, said connecting device having two off-set parallel sections and being movable endwise to vary the position of the sections and accordingly vary the leverage ratio and thus vary the throw of the vibrator, an accent type action inoperative on the universal bar, means controlled by said accent type action and act'- means ing on said connecting device to actuate the vibrator independently of the universal bar and to give it an extent of throw determined by the setting of said device, a case shift frame, and means whereby all of said parts except the accent writing type action partake of the shifting movement of said fram and maintain the same relation in both positions to which the latter may be shifted.
11. In a typewriting machine including escapement mechanism, the combination of a ribbon vibrator, one or more dead key type actions, and means controlled thereby for actuating the ribbon vibrator without actuating the escapement mechanism, said means comprising an oscillating member having contacts which may be readily broken off leaving only such ofi said contacts as are associated with the type action or actions which ar to be employed as dead key actions, whereby any of a number of type actions may be selected for use as dead key type actions.
12. In a typewriting machine, the combination of escapement mechanism, a universal bar therefor having removable contacts, type actions co-operative therewith and any of a number of which may be selected for use as dead key type actions by removing the associated contacts on the universal bar, a ribbon vibrator, means controlled by the universal bar for actuating the ribbon vibrator, and additional means for actuating the vibrator independently of the universal bar by the type action or actions selected for use as dead key type actions, said additional means comprising an oscillating member having detachable contacts leaving only such of said contacts as are co-operative with those of the type actions selected for use as dead key actions.
13. In a typewriting machine including escapement mechanism, the combination of a ribbon vibrator, one or more dead key type actions, and means controlled thereby for actuating the ribbon vibrator without actuating the escapement mechanism, said means comprising a rock shaft, and a sheet metal plate secured thereto and formed with separate contacts which may readily be broken off leaving only such of said contacts as are associated with the type action or actions which are to be employed as dead key actions, whereby any of a number of type actions may be selected for use as dead key actions.
14:. In a typewriting machine, the combination of escapement mechanism, a universal bar therefor having removable contacts, type actions co-operative therewith and any of a number of which may be selected for use as dead key type actions by removing the associated contacts on the universal bar,
a ribbon vibrator, means controlled by the universal bar for actuating the ribbon vibrator, and additional means for actuating the vibrator independently of the universal bar by the type action or actions selected for use as dead key type actions, said additional means comprising a. rock shaft, and a sheet metal plate secured thereto and formed with separate contacts which may readily be broken off, leaving only such of said contacts as are associated with'the type action or actions which are to be employed as dead key actions.
15. In a typewriting machine including escapement mechanism, the combination of a ribbon vibrator,'one or more dead key type actions, means controlled thereby for actuating the ribbon vibrator without actu ating the escapement mechanism, said means comprising an oscillating member having contacts which may be readily broken off, leaving only such of said contacts as are associated with the type action or actions which are to be employed as dead key actions, whereby any of a number of type actions may be selected for use as dead key type actions, a case shift frame, and means for causing all of the parts mentioned except the type actions to shift with said case shift frame so as to maintain the same relation one to another irrespective of the case position of the shift frame.
16. In a typewriting machine, the combination of escapement mechanism, a universal bar therefor having removable contacts, type actions co-operative therewith and any of a number of which may be selected for use as dead key type actions by removing the associated contacts on the universal bar, a ribbon vibrator, means controlled by the universal bar for actuating the ribbon vibrator, additional means for actuating the vibrator independently of the universal bar by the type action or actions selected for use as dead key type actions, said additional means comprising an oscillating member having detachable contacts leaving only such of said contacts as are co -operative with those of the type actions selected for use as dead key actions, a case shift frame, and means 7 GEORGE A. SEIB.
Witnesses:
LINNIE F. BURNETI, H. J. KELLER.
US529415A 1922-01-16 1922-01-16 Typewriting machine Expired - Lifetime US1494716A (en)

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DER56261D DE420858C (en) 1922-01-16 1922-07-02 Typewriter with switching

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459932A (en) * 1944-10-25 1949-01-25 Woodstock Typewriter Co Silent key mechanism for typewriters
US2515779A (en) * 1947-05-17 1950-07-18 Allen Business Mach Silent key mechanism for typewriting machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2459932A (en) * 1944-10-25 1949-01-25 Woodstock Typewriter Co Silent key mechanism for typewriters
US2515779A (en) * 1947-05-17 1950-07-18 Allen Business Mach Silent key mechanism for typewriting machines

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