US723884A - Ribbon guiding, guarding, and shifting mechanism for type-writing machines. - Google Patents

Ribbon guiding, guarding, and shifting mechanism for type-writing machines. Download PDF

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US723884A
US723884A US6549601A US1901065496A US723884A US 723884 A US723884 A US 723884A US 6549601 A US6549601 A US 6549601A US 1901065496 A US1901065496 A US 1901065496A US 723884 A US723884 A US 723884A
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Prior art keywords
ribbon
frame
type
carriage
printing
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US6549601A
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Charles Frederick Laganke
John A Smith
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FISHER BOOK TYPEWRITER Co
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FISHER BOOK 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
    • B41J11/00Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers, thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/62Shields or masks

Description

"No. 723,884. PATBNTED MAR. 31, 1903.
c. F. LAGANKE & J. A. SMITH. RIBBON GUIDING, GUARDING, AND SHIFTING MECHANISM FOR TYPE WRITING MACHINES.
A 'PLIOATION IIL-ED JUN 21 1901. no MODEL. R E s sums-sum 1.
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PATBNTED'MAR. 31, 1903., o. F. LAGANKE & J. A. SMITH.
1 RIB'BONGUIDING, GUARDING, AND SHIFTING MECHANISM FOR TYPE WRITING MACHINES.
I PATBNTED MAR. 31, 1903. c. F. LAGA'NKE &.J. A: SMITH.- RIBBON GUIDING, GUARDING, AND SHIFTING'MEGHANISM FOR TYPE WRITING MACHINES.
APPLICATION FILED JUNE 21, 1901. N0 MODEL. 8 SHEETS-SHEET 3.
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o. 723,884. 'PAT NTED MAR-I31, 1 90's.; 0. 1-". LAGANKE & J. A. SMITH. I I I RIBBON GUIDING, GUARDING, AND sIIIPTING MECHANISM FOR TYPE WRITING MACHINES.
APPLICATION FILED JUNE 21, 1901.
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No. 723,884. PATENTEDMAR. 31, 1903.
0. F. LAGANKB & J. A. SMITH. RIBBON GUIDING, GUARDING, AND SHIPTING MECHANISM FOR TYPE WRITING MACHINES. "APPLIUATION FILED JUNE 21, 1901.
8 SHEETS-SHEET 5.
K0 MODEL.
lllnl u No. 723,884. 'PA'I'ENTBD MAR- 31, 1903. C. E. LAGANKE 8: J. A. SMITH. RIBBON GUIDING, GUARDING, AND SHIPTING MECHANISM FOR TYPE WRITING MACHINES.
APILIO ATION FILED JUNE 21, 1901.
a SHEETS-SHEET 6,.
' I 10 MODEL.
Momma m: News Pnzns co wuoromna, wnsmu No. 723,884. 'PATENTED MAR. .31, 1903.
V G. F. LAGANKE & J. A. SMITH. RIBBON GUIDING, GUARDING, AND SHIFT'ING MECHANISM FOR TYPE WRITING MACHINES.
N0 MODEL. 8 SHEETS-SHEET 7 n4: NORRIS PETERS ca, PHOTO-LITHQ. WIGHINGTDN, 0. c.
- I PATENTED MAR.31,1903.. 0. P. LAGANKE & J.- A. SMITH. Y RIBBON GUIDING, GUARDING, AND SHIFTING MECHANISM FOR TYPE WRITING MACHINES.
APPLICATION FILED V 21 1901. 7 80 MODEL. JUNE B SHEETS-SHEET &.
m: NORRIS PErzRs co., vnoruumuu wasnmo'ron. 0.1:.
- UNITED STATES:
PATE T OFFICE.
CHARLES FREDERICK LAGANKE, OF CLEVELAND, OHIO, AND JOHN A. SMITH, OF ATHENS, TENNESSEE, ASSIGNORS TO THE FISIIER BOOK TYPEWBITER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF DELAWVARE.
RIBBON GUIDING; GU ARDING, AND SHIFTING MECHANISM FOR TYPE-WRITING MACHINES.
SPECIFICATION formingpart of Letters Patent No. 723,884, dated March 31, 1903 Application-filed June 21, 1901. $eria1No. 65,496. (No model.)
To an whom it may concern: Be itknown that we, CHARLES FREDERICK LAGANKE, residing at Cl-eve1and,in the county of Cuyahoga and State of Ohio, and JOHN A.
5 SMITH, residing at Athens, in the county of McMinn and State of Tennessee, citizens of the United States, have invented a new and useful Ribbon Guiding, Guarding, and Shifting Mechanism for Type-Writing Machines,
of which the following is a specification.
This invention relates to improvements in type-writing machines, but more'particularly to ribbon guiding, guarding, and shifting mechanism therefor. Y i
The object of the invention is to provide a simple, durable, inexpensive, and efficient construction of ribbon supporting and guiding mechanism for guiding and protecting theribbon passing between the ribbon-spools anism being organized and arranged in a manner. to permitthe' ribbon to be shifted, laterally to present different tracks or stripes; thereof at the printing-point, so that as theribbon is fed longitudinally the type will; strike along a ribbon stripe or track constituting one of a number which may be utilized by reason of the lateral shifting of the ribbon.
cilitate the use of the machine for printing in different colors by equipping said machine with a ribbon having stripes, bands, or tracks of the several colors desired or with a pl'u-' rality of different-colored ribbons, either of which stripes or. ribbons may be presented over the printing-point by the shifting of the ribbon-spools and guiding-frame. I
A further object of the invention is to pro- 40 vide means for moving the ribbon laterally to displace it'from the printing-point a suflicient distance to expose the printing and to provide the machine with an automaticallyoperated line finder or indicator arranged to be moved to the printing-point to facilitate the positioning of: the printing mechanism whenever the ribb'onis moved out of its normal plane,theodisplacement of the ribbon and the movement ofthe line-finder to its inin close contiguity :to the platen, said mech-' A further object of the invention is to fadicating position being simultaneously ef- 5o fected by meausot' a single ribbon-shift key.
A still further object of the invention is to equip the type-writing machine with a ribbon-indicator exposed adjacent to the keyboard to indicate which stripe 0r longitudimil track of the ribbon is presented at the printing-point and to enable the operator to readily shift either of the other stripes or tracks of the ribbon to the printing-point, accordingly as it is desired to print in differ- 6o ent colors or to employ an unused portion of the same-colored stripe for the succeeding printing operation.
Further and subordinate objects of the invention will appear more fully hereinafter as the necessity for their accomplishment is developed in the succeeding description of that form of the invention which for the purpose of this disclosure We have illustrated in the accompanying, drawings.
Insaid drawings, Figure l is a front elevation of a Fisher typewriting machine equipped with the subject-matter of our present invention. Fig. 2 isa rear elevation of the subject-matter of Fig. 1. Fig. 3 is an end elevation, partly in section, of the type-writ ing machine, showing the,,ribbon-shift key depressed in dotted lines and the depressed position of the ribbon and the indicating position of the line-finder likewise being shown in dotted lines. Fig. 4 is a view similar to Fig. 3, but looking toward the opposite end of the machine. Fig. 5 is a horizontal sectional view on the line'5 5 of Fig. 1, showing the ribbon supporting and guiding mechan- 8 5 ism and the line-finder in 'plan. Fig. 6 is a longitudinal sectional view of a portion of the type-writing machine and the ribbon mechanism. Fig. 7 is a detail perspective view of one of the ribbon-guards detached. Fig. 8 is a detail sectional view on the line 8 8 of Fig.
6. Fig. 9 is a detail perspective view of the ribbon-displacing and line-finder operating key and its connections and also the ribbonindicator and the lateral ribbon-shift lever and stop. Fig. 10 is a detail perspective View tail perspective view of one of the ribbonspools and the adjacent end of the ribbonguiding frame and a portion of one of the ribbon-guards. Fig. 12 is a detail sectional view of one of the ribbon-spools, illustrating the construction and mounting thereof and the manner of attaching the ribbon-guiding frame thereto. Fig. 13 is a sectional elevation illustrating the mechanism employed to feed a ribbon supported and guided in accordance with our invention. Fig. 1 1 is a detail sectional view illustrating one feature of the mechanism shown in Fig. '13, and Fig. 15 is a detail perspective view of one of the pawls which serve to connect the spool-shafts with their operating mechanism.
Like characters of reference are employed to designate corresponding parts throughout the views.
The ribbon supporting, guiding, and guarding mechanism and the mechanism employed for shifting the ribbon laterally either to displace it entirely from its normal position or to present the various longitudinal stripes or tracks thereof to the types are susceptible of use in connection with various kinds of typewriting machines; but for the purpose of the present disclosure we have illustrated the invention in connection with a machine of that type now in extensive use and known commercially as the Fisher type-writing machine. The subject-matter of this invention is designed with special reference to the equipment of the Fisher machine, which has come to be largely employed in commercial billing, one of the requisites of which is the use of the usual debit and credit colors, black and red, for the entry of the debit and credit items.
In order to make the disclosure as comprehensive possible by showing a complete ribbon-operating mechanism, we have illustrated in connection with the subject-matter of our invention the ribbon-feeding and feedshifting mechanism invented by John A. Smith and described andclaimed in his concurrent application, Serial No. 65,475.
The machine illustrated in the drawings involves in its general organization a carriagesupporting frame 1, disposed to travel upon the main tracks or guides 2 and provided with front and rear carriage-guides 3 and 4, supporting the printing mechanism or carriage 5, which is mounted to travel in the direction of letter-spacing and is provided with a pendent typc-har-supporting ring 5. The frame 1, variously called the traveling-machine frame or the carriage-supporting frame,is equipped with ordinary line-spacing mechanism which is employed in the manner well understood in the art to advance the frame 1 in line-for-line progression over the flat platen, which characterizes machines of the type illustrated. The carriage 5 is arranged to be drawn to the right,or in thedirection of letter-spacing, by suitable means (not illustrated) and is equipped, as shown, with escapement mechanism for effecting the stepby-step advance of the carriage in the man ner set forth in the patent to R. J. Fisher, No. 573,868. This mechanism constitutes no part of the invention and is therefore omitted from the drawings. With this carriage-feeding mechanism for regulating the step-bystep feed of the carriage in the direction of letter-spacing is combined a carriage-release mechanism, including a primary element or release-lever 7, mounted within the carriagecasing, as shown in Fig. 4 of the drawings,
and having operative connection with a release-key 8, by the depression of which the carriage may be released to permit its free movement upon the guides of the machineframe. The release-lever 7 and its key are described in the Fisher patent aforesaid and are only shown because said lever constitutes the operating member of ribbon release mechanism illustrated in the drawings for the purpose of completing the disclosure of an entirely operative construction, but constituting a feature described and claimed in the aforesaid concurrent application of John A. Smith. From the bottom of the carriage, at the opposite ends thereof, depend suitable spool-shaft hangers 9, rotatably supporting a pair of parallel spool-shafts 10 and 11, 1o-
cated slightly beyond the opposite ends of the carriage and serving to support the ribbons-pools l2 and 13. The ribbon-spools are designed to rotate with the spool-shafts for the purpose of causing the feed of the inking-ribbon 1a in one direction or the other, as the carriage is advanced in the direction of letter-spacing during the printing operation.
Before proceeding with a detail description of that portion of the construction with which our present invention is directly concerned it may be well, in order that a comprehensive understanding of the operation of the printing mechanism may be had, to refer briefly to the illustrated construction of ribbon-feeding and feed-shifting mechanism invented by John A. Smith, as heretofore stated. As shown more particularly in Fig. 13, said mechanism comprehends spool-pinions 15 and 16, loosely mounted on the spool-shafts 10 and 11,
and arranged for connection with said shafts to rotate them by means of ratchet-wheels 17 and 18, fixed upon the shafts for engagement with spring-pressed pawls 19 and 20, carried by and movable with the pinions. Intermodiate of the pinions is disposed a shift-bar 21, carrying shift-pinions 22 and 23, constantly meshing with an operating-rack 24, mounted uponthemachine-frameindependentlyof the carriage: The shift-bar is designed to be moved for the purpose'of bringing either of the shift-pinions into mesh with a spool-pin-- ion to eifect the rotation of either of the pinions, as it is desired to cause the feed of the ribbon in one direction or the other when the machine is moved in the direction of letterspacing. For the purpose of entirely releasdifferent col0rsas, for instance, in enteringing the ribbon-operating mechanism tostop the feed ribbon-release mechanism is employed. This mechanism includes a pair of beveled disks 25 and 26, shiftably mounted on the spool-shafts and arranged to be urged toward the pinions for the purpose of lifting the pawls 19 and 20 out of engagement with the ratchet-wheels, and thereby totally dis direction in order that the positive longitudinal feed of the ribbon may be effected in one direction or the other, accordingly as one pinion or the other is geared to the operating-rack. Thus We see that the ribbon may be fed longitudinally in either direction, as desired, or may be entirely released to stop the feeding thereof whenever the carriage is released from its escapement mechanism and is free to be shifted back and forth upon the machineframe. It is of course understood that this longitudinal feed of the ribbon is designed to prevent the type from striking continuously thereon at the same point, and therefore as the ribbon is advanced a narrow stripe or track thereof will be presented directly above the printing-point. It will therefore be evident that in order to present difierent portions or stripes of the ribbon at the printingpoint, either for the purpose of utilizing the entire area of the ribbon or for presenting stripes of different colors to the type, the ribbon must be shifted laterally, and the present invention therefore comprehends novel means for supporting and guiding theribbon and for'shifting the same laterally, either to displace the ribbon entirely from the printing-point or to present thereto the differentcolored portions of the ribbon in order to facilitate the use of the machine for printing in debit and credit items in commercial billing. -That portion of each of the spool-shafts disposed between the hangers is of angularcrosssectional contour, and the angular portion of each shaft slidably supports the bearingthimbl'es 29 and 30, the internal contours of which correspond to the external contour of the shaft. These bearing-thimbles are secured within the opposite ends of the hollow hub 31 of the ribbon-spool, and their opposite ends project slightly beyond the heads 2 of thespool in order to provide trunnions.
or journals for reception within annular bearing-rings 33, fprmed at the upper ends of the arms -34 of the ribbon frame supporting brackets 35. By reason of this mounting the spools are rotated with the spool-shafts, but are free to be s hifted longitudinally thereon forthepurpose of displacingthe ribbon from the printingepoint or, for presenting anyone of the several stripes or tracks of the ribbon to the types. The bearing trunnion-s or studs of the spools rotate freely within the bearingrings 33 of the ribbon -frame supporting brackets 35, and said brackets are secured in any' suitable manner to the vertically-disposed end portions 36 of the ribbon supporting and guiding frame 37. The ribbon-guiding frame is designed to lead the ribbon under the type-ringand extends from one spool to the other, and it preferably comprises a pair of right-angular sheet or plate metal end members 38, having downwardly and outwardly disposed side flanges 39 and a more or less open intermediate member or ribbon- (See Figs. 5 and 6.) The plate 40 v is secured at its opposite ends, as by rivets plate 40.
or the like, to the contiguous extremities of the end members 38 and is cut out to form forwardly-extending parallel ribbon-guides.
41 and 42 and guiding-fingers 43 and 44. The ribbon-guides 41 and 42 are disposed adjacent to but at opposite sides of the printing-point, and their contiguous side edges are turned down to form ribbon-depressing flanges. 45,
in unison when the latter is shifted laterally,
and in order to insure the proper longitudinal disposition of the guide-frame during the shifting thereof the horizontal portions of its end members are provided with upstanding guide-studs 45, movable within guide-loops Inasmuch as the arms of the frame- 46, securedto the type-ring 5, adjacent to 4 the opposite ends of the frame.
Forthe purpose of making the specialutility of the present invention perfectly apparent we have illustrated a black ribbon provided along its rear longitudinal edge with a narrow stripe, band, or track of red, (indicated by the letter a.) This stripe or band is of a Width little more than that required for the impact of a single type; but the black portion 1) of the ribbon is of such width as to comprehend a numberof such tracks-that is to say, the black band or stripe b is of such width that each edge thereof and the middle portion, respectively, may be usedoas separate tracks, each being used as the. ribbon is fed longitudinally and displaced by another when the ribbon-guiding frame is shifted laterally the desired distance, in a manner to be hereinaf termorefnlly described.
The mechanism for shifting the ribbon frame and spools laterally preferably includes a ribbon-shift key 47, formed-at one end of the ribbon-shift lever 48, secured to the inner end of a rock-shaft 40, having its extremity forked, as indicated at 50, for engagement with a stud 51, projecting from one of the frame supporting brackets 35. The rockshaft 49 is supported in suitable bearings 52, pendent from the carriage, and at its end opposite the lever 48 the shaft is provided with an arm 53, the forked end of which engages a stud 54, extending from the supportingbracket 35 at the adjacent end of the ribbonframe. Except when preventedby means to be described the ribbon-frame is designed to occupy an extreme forward position, which will present the narrow red stripe a above the printing-point, and said frame is therefore urged forwardly by suitable reactive means-- as, for instance, a spring 55, coiled upon the rock-shaft 49 and having its opposite ends engaged by a set-collar 56, secured to the shaft, and a post 57, secured to the bottom of the carriage-casing. (See Fig. 6.) The upper end of the ribbon-shift lever 48 is laterally oifset and is guided in its movement bya laterally-disposed slotted guide-flange 58, formed along the front inclined edge of a bracketplate 59, screwed or otherwise secured to one end of the carriage-casing, as best shown in Figs. 3 and 9. By reference to Fig. 3 it will be noted that the ribbon=shift key 47 when depressed to the lower end of the guide-flange 58 will cause the ribbon and its frame to be laterally shifted a suificient distance to entirely displace the ribbon from the printingpoint, and as the front of the carriage is open (see Fig. 1) this shifting of the ribbon will reveal the writing for the inspection of the operator, and upon the release of the key 47 the spring 55 will automatically return the ribbon to its initial position. If, however, the return of the ribbon-shift lever 48 is prevented, it is evident that the complete return of the ribbon to its initial position will likewise be prevented, and as the narrow red stripe will not reach the printing-point it is evident that the black stripe b of the ribbon will be presented to the printing-point instead. In other words, the precise portion of the ribbon which will be presented to the printing-point is determinable by the extent of the return movement of the shift-lever 48, and by providingsuitable adjustable stop mechanism for arresting the return movement of the lever at different points any one of the several stripes or tracks of the ribbon may be presented to the types without interfering with the proper operation of the ribbon feeding, shifting, or releasing mechanism. A convenient device for accomplishing this result comprehends the employment of a swinging plate 60, pivoted upon the bracketplate 59 and having a laterally-disposed stop (51 located in rear of the lever 48 and capable of being adjusted to arrest the return movement of the lever at the several points corresponding to the impression tracks or stripes of the ribbon. The plate 60 is moved to its several positions and is retained by means of an upstanding spring-arm 62, passingupwardly through a slot 63 in what We shall term the ribbon-indicator flange 64, extending laterally from the upper edge of the plate 59. The outer side wall of the slot 63 is formed with a series of stop-shoulders 65, which, together with the rear end of the slot, constitute means for retaining the arm 62 in its several predetermined positions, it being observed that the resiliency of the arm will cause it to spring into engagement with the successive stop shoulders as the lever is moved forward by the operator. Thus when the arm 62 is located at the rear end of the slot 63, as indicated in Fig. 9 of the drawings, the stop 61 will be in a position to permit the complete retraction of the lever 48 and a complete return of the ribbon to its extreme forward position, thus presenting the rearmost stripe or impression-track of said ribbon at the printing-point. If now the arm 62 is advanced to the next stop-shoulder, the stop. 61 upon the plate 60 will urge the lever 48 forward and will cause the ribbon to be shifted laterally to a sufficient extent to dis place the real-most track or stripe from the printing-point and to replace it by the next laterally-adjacent track, which in the illustrated form or ribbon will be the rear edge of the black band I), or if after using the black ribbon it is desired to make a credit entry in red ink the arm 62 may be pressed laterally to disengage it "from its shoulder, and upon such release being effected the force exerted by the spring 55 will rock the shaft 49 and swing the lever 48 sufficiently to move the ribbon-frame and the ribbon to their extreme forward positions.
It is very desirable to provide simple means located at the keyboard for indicating to the operator the precise position of the ribbon, and particularly is this true where a ribbon bearingstripes of different colors is employed, because obviously it will be desirable to know what color is presented to the printing-point and in what direction the ribbon-shifting mechanism should be moved in order to present the desired colorin position for presentation to the type. \Ve therefore provide what may be termed a ribbon-indicator for indicating the particular portion of the ribbon presented at the printing-point in any given position of the arm 62. The preferable form of such indicator is shown in Fig. 9 of the drawings and comprises a series of side openings 66, disposed opposite the several stop-shoulders 65 and Within which are exposed the various colors which will be presented at the printing-point, according to the position of the arm 62. Thus the ribbon shown (see Fig. 5) is of a sufficient width to embody four laterally-opposed longitudinal impression tracks or stripes, the rear one of which is red. Therefore the indicator plate or flange 64 is provided with fourstop-shoulders 65, one for each of the several impres- IIO sion tracks or stripes, and opposite these shoulders are exposed a red disk 67 and three black disks 68, said disks corresponding in number and color to the several impression stripes or tracks of the ribbon. It is evident, however, that these indications of the positions of the ribbon and the color of its stripes may be varied that is to say, instead of employing color-symbols, as shown, the flange 64 might be provided with a scale having significant indications of any desired character-as, for instance, the words Red, Black, &c. Instead, however, of effecting the lateral movement of the ribbon by the manipulation ofthe arm 62 the operator may, if he so desires, depress the ribbon-shift key 47, then adjust the arm 62 to present the stop 61 at the proper point, and permit the shiftlever 48 to swing back against the stop. As heretofore stated, it is contemplated to shift the ribbon laterally not only to present either ofits impression-tracks to the printing-point, but also to entirely remove the ribbon from the printing-point in order to reveal the Work, and in a further development the presentinvention comprehends the employment of a line finder and indicator, which while normally retained at a point removed from the ribbon will be automatically moved to the printing point, so that the operator may readily position the machine at the proper pointto continue the printing after the machine has for any reason been removed there-v from. For example, if themachine has been moved back. over the platen away from the printing for the purpose of permitting an erasure to be made the operator by depressing the ribbon-shift key'47 may remove the ribbon and its frame from their normal positions over the printing-point and at the same time automatically present the line-finder at the printing-pointof the machinethat is to say, that point at which the types are presented when the letter-keys are depressed; With the line-finder in position the machine .is moved back over the platen until the finder indicates both the line and the point at which the next type impression is to be made. The key 47 is then released, the line-finder returns to its inactive or normal position, and the ribbon-shift lever 48 is arrested to present the proper impression-stripe ofthe-rib bon to the type in accordance with the predetermined position of the stop 61.
It will. be noted that the stop (it is adjustable to di fierent positions to arrest the return' movement of the ribbon-supporting means at different points -and that said stop having once been adjusted to present a given stripe of the ribbon normally at the printing-pointthe ribbon may be shifted any number of times to expose the writing to view without interfering- With the adjustment of the stop.
Thus having once adjusted the stop the operator is at liberty to shift the ribbon as often as may be desirable during the course of the work, and upon its return the proper stripe or indicator 69, secured at one end toa rockshaft and located in a central depression 71, formed in a transverse frame-bar 72, extending between the front ends of the crescent-shaped type-ring 5. The opposite side portions of this depression 71 constitute bearings for the rock-shaft 70, which latter is extended through a depending bearing-flange 73, formed at one end' of the bar 72, and is provided just beyond said fiange with anamarm 74. (See Fig. 10.) The line finder and indicator 69 is designed normally to occupy a more or less elevated position, as shown in Fig. 10, so as to prevent it from interfering with the ribbon and to remove it out of the path of the type-heads located at the outer ends of the type-arms, and in order to insure theretention of the line-finder in its normal position the shaft 70 is provided with a return-spring 75, encircling the shaft and secured at its opposite ends to said shaft and to the bar 72.
The depression of the line-finder 69 is effected by means of a sliding bar or plunger 76, having a curved nose 77 at its lower end hearing upon the cam-arm 74E. The slide-bar 76 is provided with longitudinal slots 78 for the reception of headed screws 79, screwedinto the side face of one of the front hanger-rods 80 for the type-ring. Adjacent to the upper end of the bar 76 it is provided with a laterally-disposed pin 81, disposed in the path of an arm 82, extending laterally from the rock-shaft lfi. The arm 82 is not connected to the pin 81, but is spaced therefrom by a suitable interval to produce considerable lost motion of the rock-shaft with respect to the actuation of the line-finderthat is to say, the arm 82 does not contact with the pin 81 to operate the line finder until the ribbonshift lever 48 has nearly reached the limit of its forward movement, and therefore when the ribbon is shifted laterally for the purpose of presenting the difiereut impressionstripes thereof to the printing-point the linefinder is not operated; but when the ribbon is moved sufficiently to entirely displace it from the printing-point the latter part of said movement will be accompanied by a simultaneous movement of the line-finder, so
that the latter will be presented to the printing-point when the ribbon has been entirely displaced. 'Ihus assuming the parts to be in the positions shown in Figs. 9 and 10 the key 47 may be actuatedto present either of the four impression-stripes of the ribbon to the' ing said bar by reason of its operative 'engagement with the cam-arm 74 to rock the shaft 70,and thereby depress the line-finder to the position shown in dotted lines in Fig. 3.
For the purpose of preventing the ribbon or that portion thereof which passes under the ribbon-frame from coming in contact with the work-sheet, except at the printing-point, it is intended to etnploy-apair of ribbonguards 83 and 8t, detachably secured to the end members of the frame. These guards are in the form (see Fig. 7) of plates or strips havingtheir outerends bent up, as indicated at 83, and provided along their opposite sides with holding flanges or guides 86, bent inwardly, as shown in the drawings, to siidably engage the side flanges 39 of the horizontal portions of the end members 38, said lastnamed flanges being bent outwardly or in divergent; relation, as shown in Fig. 8. By reason of these interfitting flanges the guards may be readily slid upon the end members of the frame, so as to dispose their horizontal portions below the ribbon, (see Fig. 6,) and in order to prevent the-accidental detachment of the guards their upturned ends are provided with spring engaging arms 87,which grip the opposite sides of the vertical portions 36 of the ribbon-fra|ne when the guards have been slid to place.
It is thought that from the foregoing the construction, operation, and special utility of our invention will be apparent; but while the present embodiment of said invention is thought at this time to be preferable we reserve the right to eifectsuch changes, modifications, and variations of the illustrated structure as may be suggested by experience or experiment and embraced within the scope of the protection prayed.
What we claim is- 1. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, a ribbon-shift key located at or adjacent to the keyboard and arranged to shift the ribbon laterally, and an adjustable stop mounted independently of the key and disposed to limit the return movement thereof.
2. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting' means, a ribbon-shift lever for shifting the ribbon laterally, an adjustable stop for limiting the movetnent of the shiftlever in one direction, and an indicator disposed adjacent to the stop for indicating the position of the ribbon.
3. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting mechanism, a ribbon-shift lever connected thereto and designed to shift the ribbon laterally, an adjustable stop mounted independently of the lever and disposed in the path of movement thereof, and an indicator having significant designations corresponding to the impression tracks or stripes of the ribbon.
4. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, a shift-lever arranged to move said ribbon laterally for the purpose of removing the ribbon from the printing-point, and adjustable means for limiting the return movement of the lever, whereby any desired impression track or stripe of the ribbon will be presented at the printing-point.
5. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, a ribbon shift lever mounted on the carriage and arranged to move the ribbon-su pporting means laterally, a swinging stop disposed in the path of the lever, and means for adjusting the stop to different 'positions corresponding to the impression tracks or stripes of the ribbon. 6. In a type-writing machine, the combination with the frame and carriage, of ribbon supporting means, a ribbon-shift lever disposed to shift the ribbon laterally, a bracketplate provided with guiding means for the lever, an adjustable stop carried by said bracket-plate to limit the movement of the shift-lever, an arm for operating said stop, and a ribbon-indicator disposed contiguous to said arm.
7. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, a ribbon-shift key supported by the carriage and disposed to shift the ribbon laterally, and an adjustable stop device mounted on the carriage independently of the shift-key and disposed to limit the movement thereof in one direction.
8. In a type-writing machine, the combina tion with a frame and carriage, of ribbon-supporting mechanism, a shift-key mounted on the carriage and connected to the ribbon-supporting mechanism to shift the ribbon laterally, a bracket-plate secured to the carriage and having guiding means for the shift-key, a swinging arm mounted on said plate independently of the key and provided with a stop for limiting the movement of the key in one direction, and a flange extending from the plate and provided with spaced retaining devices for the swinging arm, and with a ribbon-indicator the characters of which are located opposite the several retaining devices for the arms.
9. In a type-writing machine, the combina tion with the frame and carriage, of ribbonsupporting means, a reactive device for moving the ribbon laterally in one direction, a shift-key for moving the ribbon laterally in the opposite direction in opposition to said reactive device, and adjustable means for limiting the return movement of the shift-key.
10. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, a reactive device for urging the ribbon laterally in one direction, a shift-key for urging the ribbon laterally in the opposite direction in opposition to said vice for urging the frame in one direction, a-
shift-key for urging the frame in the opposite direction in opposition to said reactive device, and adjustable means for limiting the return movement of the shift-key.
12. In a type-writing machine, the combination with the frame and carriage, of a laterally-movableribbon-guidingframe, ribbonspools movable with said frame, spring-operated means for urging the frame constantly in one direction to present the ribbon at the printing-point, a shift-key for urging the frame laterally in the opposite direction to displace the ribbon from the printing-point, and an adjustable stop for limiting the return movement of the shift-key to present any desired impression track or stripe of the ribbon atthe printing-point.
13. In a type-writing machine, the combination with the frame and carriage, of a laterallymovable ribbon -guiding frame sup-. ported by the carriage, ribbon-spools movable with said ribbon -guiding frame, a springurged rock-shaft connected to the ribbonguiding frame, and a shift-key mounted upon the carriage for movement therewith and 0peratively connected to the shaft to rock the same.
14. In a type-writing machine, the combination with the frame and carriage, of a laterally movable ribbon guiding frame, a spring-urged rock-shaft connected to the opposite ends of said frame, a shift-key connected to the rock-shaft to operate the same, and an adjustable stop disposed in the path of the shift-key to limit the return movement thereof.
15. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, ribbon -shiftingmechanism for moving the ribbon laterally, and a movable line finder, said ribbon shifting mechanism being operatively related to the line-finder.
16. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting mechanism, a shift-key for moving the ribbon laterally, and aline-finder shift= able toward and away from the'printing-point and operatively related to the shift-key.
17. In a type-Writing machine, the combination with the frame and carriage, of ribbonsupporting mechanism, a line-finder, and operating means common to the ribbon and linefinder for presenting them to the printingpoint alternately.
18. In a type-writing machine, the combination with the frame and carriage, of ribbonsnpporting means, a line-finder movable toward and from the printing-point, means for shifting the ribbon laterally independently of the line-finder, to present any of the impres sion stripes or tracks of the ribbon to the printing-point, and means for automatically shifting the line-finder toward the printingpoint whenever the ribbon is entirely displaced therefrom.
19. In a type-writing machine, the combination with the frame and carriage, of a laterally-movable ribbon-guiding frame, ribbonspools movable therewith, a shift-key for moving the ribbon-frame laterally, a line-finder shiftable toward and from the printing-point, a rockshaft supporting the line-finder, and connections between the shift-key and said rock-shaft. I
20. In a type-writing machine, the combination with the frame and carriage, of a laterally-movable ribbon-guiding frame, ribbonspools movable therewith, a line-finder movable toward and from the printing-point, a ribbon-shift key for moving the ribbon-guiding frame laterally, an arm operated by said key, and connections for operatively connecting said arm with the line-finder'to operate the same during the final movement only of the shift-key in one direction.
21. In a type-writing machine, the combi nation with the frame and carriage, of a laterally-movable ribbon-guiding frame, ribbonspools movable with said frame, a line-finder movable toward and from the printing-point, a rock-shaft connected to the line-finder to operate the same, a slide-bar operatively related. to the rock-shaft, a shift-key for moving the ribbon-guiding frame, and an arm opribbon in closely-adjacentrelation to the, platen at the printing-point.
24. In a type-writing machine, the combination with the frame and carriage, of a ribbon-guiding frame, ribbon-spools located at the opposite ends of the ribbon-guiding frame,
and ribbon-guards (letachably secured to said tact of the ribbon with the work-sheet except at the printing-point.
27. The combination with the ribbon-guiding frame of a type-writing machine, of a ribbon-guard provided with flanges engaging the opposite edges of said frame.
28. The combination with the ribbon-guiding frame of a type-writing machine, of detachable ribbon-guards provided with flanges, and grippingarms engaging the opposite edges of the frame.
29. In a type-writing machine, the combination with a frame and carriage, of ribbonsupporting mechanism designed to support a ribbon having longitudinal impression tracks or stripes of different colors, and a ribbonindicator having colored characters corresponding in number and color to the impression-stripes on the ribbon.
30. In a type-writing machine, the combination with a frame and carriage, a ribbon having impression stripes or tracks of diiferent colors, ribbon-supporting mechanism, and means for shifting the ribbon laterally, of a ribbon-indicator mounted on the carriage and disposed in significant relation to the ribbonshifting means to indicate the impression stripe or track presented at the printingpoint, said ribbon-indicator being provided with characters corresponding in color and number to the impression-stripes of the ribbon.
31. In a type-writing machine, the combination with the frame and carriage, of, ribbonsupporting means, a line-finder movable toward and from the printing-point, means for shifting the ribbon laterally independent of the line-finder, and means for automatically shifting the line-finder toward the printingpoint whenever the ribbon is entirely displaced therefrom.
32. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, means for shifting the ribbon-supporting means laterally, and adjustable means for arresting said ribbon-supporting means upon its return, the adjustment of the arresting means being unaffected by the shifting of the ribbon.
33. In a type-Writing machine, the combination with the frame and carriage, of ribbonsupporting means, means for shifting the ribbon laterally, and adjustable means for arresting the ribbon upon its return, the adjustment of the arresting means beingunaffected by the shifting of the ribbon.
34. In a type-Writing machine, the combination with the frame and carriage, of ribbonsupporting means, means for shifting the ribbon-supporting means laterally, and an adjustable stop for arresting the return movement of the ribbon-supporting means, said ribbon-supportingmeanspermittiug the shifting of the ribbon Without interfering with the adjustment of the stop.
35. In a type-Writing machine, the combination with a frame and carriage, of ribbonsupporting means, means for shifting the ribbon laterally, means for returning the ribbon, and adjustable means for arresting the ribbon in different positions with respect to the printing-point, said shifting means permitting the ribbon to be shifted without interfering with the adjustment of the arresting means.
36. In a type-writing machine, the combination with a frame and carriage, of ribbonsupporting means, means for shifting the ribbon away from the printing-point, reactive means for returning the ribbon, and an adjustable stop device for limiting said return movement, said shifting means permitting the shifting of the ribbon without interfering with the adjustment of the stop device.
37. In a type-writing machine, the combi nation with a frame and carriage, of ribbonsupporting means, a ribbon-shift key located at or adjacent to the keyboard and arranged to shift the ribbon laterally, reactive means for returning the ribbon, and an adjustable stop disposed to limit the return movement of the ribbon-supporting means, the key and stop being so related that the adjustment of the stop will not be disturbed by the movement of the key.
38. In a type-writing machine, the combination with the frame and carriage, of a ribbon-supporting frame mounted on the carriage, a lever pivotally mounted intermediate of its ends upon the carriage, said lever having connection at one end with the" ribbonsupporting frame and provided at its opposite end with a shift-key, and an adjustable stop device mounted on the carriage and disposed in the path of said lever.
39. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting mechanism, means for moving the ribbon-supporting mechanism laterally, and a line-finder separate from the ribbon-supporting mechanism and operatively related to the ribbon-moving means to be shifted thereby toward and away from the printingpoint.
40. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting mechanism, a line-finder separate from the ribbon-supporting mechanism, and operating means common to the ribbon-supporting mechanism and line-finder for presenting them to the printing-point alternately.
41. In a type-writing machine, the combination With the frame and carriage, of ribbonsupporting mechanism, a shift-key for moving the ribbon-supporting mechanism laterally, and a line-finder mounted independently of the ribbon-supporting mechanism and shiftable toward and away from the printing-point, said line-finder being operatively related to the shift-key.
42. In a type-writingrmachine, the combination with the frame and carriage, of ribbonsupporting means, a device for shifting the ribbon-supporting means laterally, means for returning the ribbon supporting means, and an adjustable stop for arresting the ribbonsupporting means in various positions upon its return, the shifting device and the adjustable stop being so related that the adj ustment of the stop will not be interfered with by the movement of the device.
43. In a type-writing machine, the combination with the frame and carriage, of ribbonsupporting means, a ribbon-shift key located at or adjacent to the keyboard and arranged to shift the ribbon laterally, and an adjustable stop disposed to limit the return movement of the ribbon-supporting means, the
- shift-key and stop being so related that the adjustment of the stop will not be disturbed by the movement of the key.
44. In a type-writing machine of the downwardly-striking type, the combination with a frame and carriage, of ribbon-spool shafts supported at the opposite ends of the carriage, a type-bar support pendent from the carriage, a ribbon supporting and guiding frame pendent from the shafts and extended under the type-bar support,and ribbon-spools mounted on the shafts and engaging the 0pposite ends of the ribbon supporting and guiding frame, whereby the spools and frame may be shifted laterally in unison, said frame having an opening at the printing-point and means for depressing that portion of the ribbon located opposite the opening.
45. In a type-writing machine, the combination with a frame and carriage, of spoolshafts, spools mounted on the shafts, and a ribbon supporting and guiding frame having its opposite ends carried by the shafts, said last-named frame having an opening at'the printing-point, and a plurality of parallel guiding-fingers located adjacent to each side of the opening and extending in the same direction to permit the threading of the ribbon over and under said fingers by the edgewise movement of said ribbon, substantially as and for the purpose described.
46. In a type-writing machine, the combination with a frame and carriage, of ribbonspool shafts, ribbon-spools, and a ribbon sup porting and guiding frame extending between the shafts, said last-named frame comprising angular end portions supported from the shafts, and an intermediate ribbon-plate having an opening and a plurality of forwardlyextending ribbon-guidin g fingers at each side of the opening, between which fingers the ribbon may be slipped edgewise from the front of the frame.
47. In a type-writing machine, the combination with a frame and carriage, of ribbonspool shafts, ribbon-spools, and a ribbon sup porting and guiding frame extending between the shafts, said last-named frame comprising angular end portions supported from the shafts, and an intermediate ribbon-plate hav ing a plurality of forwardly-extending ribbon-guiding fingers, between which the ribbon may be slipped laterally from the front of the frame, the guidingfingers immediately adjacent to the printing-point being formed with ribbon-depressing flanges. I
48. In a type-writing machine, the combination with a frame and carriage, of spoolshafts and spools, a type-bar-supporting ring provided with guide-loops, a ribbon supporting and guiding frame extending between the spools and under thetype-bar-supporting ring, and studs extending from said frame and engaging the guide-loops.
49. In'a type-writing machine, the combination with a frame and carriage, of ribbonsupporting means, a line-finder movable toward and from the printing-point, means for shifting the ribbon laterally independently of the line-finder, and means for shifting the line-finder toward the printing-point when the ribbon is displaced therefrom.
50. In a type-writing machine, the combination with a frame and carriage, of ribbonsupporting means, a line-finder movable toward and from the printing-point, means for shifting the ribbon laterally independently of the line-finder, and means for automatically shifting the line-finder toward the printing-point after predetermined independent movement of the ribbon.
In testimony that we claim the foregoing as our own we have hereto affixed our signatures in the presence of two witnesses.
CHARLES FREDERICK LAGANKE. JOHN A. SMITH.
US6549601A 1901-06-21 1901-06-21 Ribbon guiding, guarding, and shifting mechanism for type-writing machines. Expired - Lifetime US723884A (en)

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