US1349890A - Typewriting-machine - Google Patents

Description

A. G. F. KUROWSKI. TYPEWRITING MACHINE. APPLICATION FILED SEPT. 23, I918.

Patented Aug. 17, 1920.

4 SHEETS-SHEET 1.

A. G. F. KUROWSKL TYPEWRITING MACHINE.

APPLICATION FILED SEPT. 23. 1918.

A. s. F. KUROWSKI. TYPEWRITING MACHINE.

APPLICATION FILED SEPT. 23, ISIS.

Patented Aug. 17 1920.

4 SHEETSSHEET 3.

A. G. F. KUROWSKI.

TYPEWRITING MACHINE.

APPLICATION FILED SEPT. 23, 1918.

Patented Aug. 17 1920.

4 SHEETSSHEET 4 UNITED STATES PATENT OFFICE.

ALFRED G. F. KUROWSKI, 0F BROOKLYN, NEW YORK, ASSIGNOR TO UNDERWOOD TYPEWRITER COMPANY, OF NEJV YORK, N. Y., A CORPORATION OF DELAWARE.

TYPEWRITING-MACHINE.

Application filed September 23, 1918.

T 0 all whom it may concern Be it known that I, ALFRED G. F. Konow- SKI, a subject of the Emperor of Germany, (but having taken out preliminary United States naturalization papers,) residing in Brooklyn borough, inthe county of Kings, city and State of New X OllQ'llfiVe invented certain new and useful Improvements in TypewritingMachines, of which the following is a specification.

This invention relates to the class of devices known as dating stamps for typewriters, although such stamps may be used not only for dating purposes, but also for any kind of work when it is desired to print a plurality of characters at a single time.

It is desirable to have such devices so built that they may be readily attached to existing machines without expensive maehining operations, and that they should be as simple as possible in order that an ordinary repair man may repair them, and that they shall be operable in some simple, yet effective, manner. It is also advantageous to have the devices so built that they do not add to the load of any moving part in the typewriter, nor interfere in any way with the lightness and ease of operation of the typewriter carriage. In obtaining these and other results, it has been found possible to build a device which can beattached by altering a few of the screws found in an ordinary typewriting machine, such as the usual Underwood standard typewriter. It has also been found possible to utilize in a very simple manner, the usual typewriter ribbon, which is used in writing on such machines, thus avoiding the complexities inherent in adding a new ribbon, and the unattractive appearance of the work if some item such as the date of a letter is printed from one ribbon, while the rest of the writing is printed from another ribbon, which may be more or less differently worn or of a slightly different color. To obtain these advantages, the usual ribbon may be carried around a frame attached to the usual typewriter mechanism, and said frame may include a plurality of settable types or printing devices which are adapted to be operated by the mere drawing of a handle.

Specification of Letters Patent.

Patented Aug. 17, 1920.

Serial No. 255,250.

In order to make sure that the types in printing give the proper impact, the printing may be effected by a spring which is adapted to be tensioned by the operating handle and to be released upon further operation of said handle, thus insuring that the impact is practically independent of the rapidity of operation of the operating handle. In order to permit the line of writing to be readable without interference by the ribbon, the ribbon, at the point where the stamp does the printing, may be normally withdrawn from the printing point. In order to make sure that the stamp is printed at a proper place on the work-sheet, the handle for operating the stamp may be normally locked and only released at a certain desired point or series of points in the travel of the typewriter carriage.

Other features and advantages will hereinafter appea' I In the accompanying drawings,

li igi're l. is a part-sectional side view of an Underwood typewriting machine. showing the invention as applied thereto.

Fig. 2 is a plan view of the same.

Fig. 3 is a perspective view of the stamp detached and viewed from a point near the platen when locked against printing.

Fig. d is a sectional side view of the printing head itself.

Fig. 5 is a sectional side view at the bcginning of the act of printing.

Fig. 6 is a View similar to Fig. showing the types printing against the platen. M

Fig. 7 is a sectional view showing the locking device locked. V

Fig. 8 is a rear view, taken from a point near the platen, showing the parts seen in F i g. 7 with the handle locked.

Fig. 9 is a View similar to Fig. 8, showing the handle unlocked.

In the Underwood typewriting machine, character keys 1, when, depressed, carry down key-levers 2, causing bell-cranks 3 to carry type-bars 4: upwardly and rearwardly. so that lower and upper-case types 5 and 6 thereon print against the front side of a platen 7, journaled in a platen frame 8. forming part of the carriage 9. The carriage is normally drawn to the left under 'the writing line to printing position.

the tension of a spring barrel, not shown, and is fed along a step at a time by means of the escapement wheel 10, connected to the usual pinion 11, which meshes with the usual pivoted rack 152. In order to feed the escapement wheel 10 a step at a time, there are provided the usual fixed and loose dogs 13 and 1%, which are adapted to be alternately engaged with said wheel by the reciprocation of the universal bar 15, which is connected to a universal segment 16, the late ter adapted to be thrust rearwardly at the rise of any type-bar by means of a heel 17.

In addition to operating the dogs 13 and 14 the universal bar also, when actuated, raises the usual ribbon-carrier 18, to bring the ribbon 19 from a point normally below In traveling, the carriage 9 slides on a roar rail 20, and a front rail 21, these rails being mounted on the usual frame 22. On the machine frame 22, near the opposite ends thereof, are the ribbon spools 23 and Ed, which are adapted to be driven by beveled gears 95, fast to a shaft 26, said shaft having fast thereto the usual ratchet wheel 27, on which the usual driving and holding pawls 28 and 29 are adapted to be effective. The ribbon 19, in passing through the rib hon-carrier 18, is guided from a post 30 ad jacent the front of the ribbon spool 23, through the ribbon-carrier 18 and thence to a 'post 31, adjacent thefront of the spool 24-.

The stamp, to which the present invention more particularly relates, comprises an arm 32. 'ournaled on a shaft 33 the latter 7 being fast in a frame 34:, which is adapted to be screwed to the right-hand end of the typewriter frame 22. In order to enable this frame 34: to be screwed to the typewriter frame with the minimum amount of machine work on the frame, the threaded hole is utilized, into which the usual screw 35 passes, for holding in place the bracket 36 i on which the ribbon spool is journaled. In

order to permit this, the frame 34: is provided with a hole adapted to accommodate a screw 37, which passes through both a lug 38 of the fame and the opening for the screw In order to prevent the attachment rom wabbling on the typewriter frame, the lug 38 is extended downward at 39, to embrace each side of the ribbon-spool bracket 36.

To operate the stamp by means of its arm 32, there is provided a handle 410 pivoted at 41 in a downwardly extending bracket 12, the latter bracket forming part of the frame 34:. The handle does not operate the arm 32 directly, but first tensions a spring 43, which draws on an extension 4.4 of the arm 32 beyond its shaft to enable the handle 40 to exert great tension on the spring 43. The handle 40 is adapted to draw on the spring by means of a lever 15 connected by a pin-and-slot connection 46 to the handle 40, so that the operation of the handle swings the front end of the lever downwardly around its pivot 47. This draws up' the rear end 48, so that a follower 49 on said rear end will engage the short arm 50 of a bell-crank to swing the opposite arm 51, to which the spring i3 is attached. The drawing down of the handle 40 does not immediately operate the arm 32 because said arm is normally locked by means of a latch 52 engaging a pin 53 on the arm 32 in its idle position. The latch 52 is pivoted on one of the plates of the frame 34 and is adapted to be swung by the extension 48 around said pivotto release the pin 53, being for this purpose provided with a pin 54-, which overlies a cam extension 55 of the arm 48.

Toward the end of the downward str of the handle ll), the arm earns the lat 52 upwardly against the tension of the spring 56, thereby releasing the arm 32 and pe rmitting the spring l3 which has been tensioned in the meantime to throw against the platen "2' the printing head types 57 on the end of the arm 32. The spring 56 may be a light spring and connected to a spring 58, which is adpted to swing upwardly the front of the lever 45.

T he ribbon 19 is normally below the printing point of the types 57, which types are adapted to print on precisely the same line as the typewriter types 5. In order to utilize the ribbon 19 for printing from the types 57, the ribbon from the spool 24: is carried through a guide 59 on one end of a bell-crank lever 59 pivoted at 60 on a bracket 61 of the frame 3 1. From the guide 59, the ribbon 19 is carried through a pair of vibrating guides 62 and to support a printing stretch (3 1 of the ribbon, which is adapted to be raised to printing position between the types 57 and tne platen 7 From the vibrating guide 63, the ribbon is carried forwardly around to the front of the frame 34, so that the ribbon may he carried from the guide 63, clear of the printing mecha nism in the frame 34, to the usualribbon guide 31, and thence to the usual ribbon vibrator 1S. In order to raise the vibrating guides 62 and 63 from the normal position in which they hold the ribbon stretch (it below the printing point, these guides are formed as a fork pivoted at (36 to the front end of a rocking frame, which has two sides 67 and 68 pivoted on a shaft 70 near the front plate 69 of the frame This frame 62, 63 is guided by a tongue 66 sliding in a lug 66 of the frame 34 and adapted to be lifted by the operation of the arm 32, said arm having fast thereto for this pui pose cam plate 71, whirh includes a slotted cam (2, engaging a pin 7 3 on the frame side 67. The relationship of the cam 72 and pin 73 is such that in its normal position,

- the latch.

the arm 32holds-the ribbon-vibrating guides 62 and 63. down, but in'the courserof the printing stroke of the arm 32, the cam 72 raises the guides 62 and 63 to bring the ribbon stretch 64 between them to printing position.

In order to give the frame sufficient strength to stand the strain of tensioning the short heavy spring 43, the frame 34 is preferably made as a solid casting having a suitable integral lug forming a pivot 74 for the bell-crank 50, as well as a solid foundation for the shaft 33 and some other parts.

In order. to hold the handle lO against being operated at .a time when the types 57 might collide with part of the typewriter carriage frame 9, or against being operated to print at a wrong position on a worksheet, the handle d0 is provided with a lug 75, having an opening 76, which is adapted to normally lie within an upper extension 77 of the front plate l2. The opening 76 is adapted to be engaged by a latch 78 pivotedto swing sidewise on the interior of the extension 77, so that when the. latch is in the Fig. 8 position, it will securely hold the handle 410 against operation, while in the big. 9 position, the handle 40 may be freely operated.

The latch 78 is adapted to be shifted from the Fig. 8 position to the Fig. 9 position by moving the typewriter carriage to the right, the carriage for this purpose bein provided with a pin lying within the ledge 86; of the front rail 81 and extending far enough toward the front of the machine to engage a swinging fork 82, which engages the latch 78 by a pin-and-slot connection 83. In order to hold the latch 78 in either of its adjacent positions, the pin of the pinand-slot connection 83 is connected by a light spring 84: to a fixed pin 85 lying within the bight of the latch 78, the arrangement of parts being such that in either position of the latch, the spring 84 lies outside the dead center and tends to draw the latch farther in the direction in which it has been swung by the typewriter carriage. The pin 85 may be so located as to limit the throw The fork 82 like the latch 78 may he pivoted on the inner fare of the rame extension 77. The arrangement of parts is such that the arm 8-5 of the fork 82, in the Fig. 8 position, lies below the path of the pin 7 9, while the tooth S7 of the fork lies directly in the path of said pin, with the result that if the carriage is drawn toward the beginning of a new line, it carries the pin 79, at Fig. 8, from the position. shown there toward the left. The pin 79 strikes the tooth 97 of the fork and s vings the fork to the ig. 9 position, the .winging of the fork permitting the pin 79 to travel on past the fork. This brings the parts to the Fig. 9 position.

In the moving of the carriage in the opposite direction, the pin 79 strikes the fork 82 and swings the parts to the Fig. 8 position. The pin 79 may be merely an extra long pin or a screw forming a pivot for the usual lever lug 88, which limits the travel of the typewriter carriage to the right, the pin 79 being, however, much longer than is usual in order to project far enough clear of the lever 88 to intercept the fork 82.

In order to enable the ordinary ribbonreversing mechanism to throw the shaft 26 to reverse the ribbon, the ribbon is threaded through the usual finger 89 adjacent the left-hand ribbon spool 23, so that the usual stud (not shown) on the ribbon may reverse the ribbon at that spool. In order to enable the ribbon to automatically reverse the spool 24, the bell-crank lever 59 is utilized and the guide 59 on this lever is provided with two closely adjacent posts 90 and 91 adapted to catch the stud on the ribbon near the spool 24 and rock the bell-crank lever 59 to reverse the ribbon. In order to enable the bell-crank lever 59 to do this, there is provided an arm 92, corres mnding to the arm 93, on which the finger 89 is mounted, except that the arm 92 is provided with no finger 89, so that instead of being operated by the usual stud on the ribbon directly, it may be operated by a follower 94 on the end of the bell-crank lever 59, the arm 92, for this purpose, being provided with a face 95 forming a cam surface over which the follower 94 may ride. Since the arm 92 is precisely like the arm found in the corresponding position in standard machines, except for the cam face 95 thereon, there is required no mechanical skill beyond that of an ordinary repair man in substituting the arm 92 for the usual arm.

In order to relieve the strain on the ribbon in going around corners, the post 91 around which the ribbon turns is provided with a roller 96, and there are also provided similar rollers 96 on the posts which guide the ribbon around the supplementary frame 34. In order to hold the ribbon in place on the guide arms 62 and 63, the upper ends of said arms are extended horizontally at 97 to form a catch, which is adapted to be sprung over the ribbon when the ribbon is threaded through the arm.

In order to enable the printing to he varied, the types which effect the printing may be formed on the surface of a plurality of independently revoluble collars or cylinders 98, 99, 100 and 101,v which are journaled on a hollow shaft 102, extending across the fork formed by the arms 193 and 10%, extending from the upper end of the printing arm 32. Since the printing head is shown in the present instance as a dating stamp, it is illustrated with the cylinder l il as bearing abbreviations for the names of the months spaced circumferentially around tliecylinder 101. Since the stamp prints a pluralityot characters at asingle stroke, it

may be conveniently described as a logohei 'ht, the cylinder has a slightly extended rabbet forming a ratchet wheel 105 having vertically faced teetli'which are adapted to be engaged by a spring-pressed pawl 106,

- pivoted on a shaft 107, which also extends 'ing the shaft 107, holds between the arms 103 and 104. The pawl 106 in this way alines the type accurately and prevents accidental shitting during the printing operation. A spring 108, embracthe pawl in effective position. I

The days of the month may be printed by types on the cylinders 100 and 99, the

cylinder 1.00 printing the numerals in the tens place and the cylinder 99 printing the numerals in the units place.

years-on successive sets of types adapted to be brought into position by revolving the cylinder 98. The spaces on the cylinders 99, 100 and 98 not needed for numerals may be used for any other devices desired. The

cylinders 98, 9 9 and 100 may be provided.

with rabbets and ratchet wheels like the ratchetwheel 105, each adapted to be held in position by a spring-pressed pawl 1.00. W

In order to enable. an ordinary operative to substitute other types for the datingtypes illustrated herein, the shaft 102 may be removable through the end of one of the 7 arms 103 or 10 and may be held against slipping out of engagement with said arms by means of a set-screw 109 on oneor both of the arms 103 or 10 1. To enable the paw s 106 to be located at different positions along the shaft 107 tocooperate with cylinders o5 lengths diii'ering from those of 98, 99, 100 and 101, the shaft 107 is adapted to be removed irom the arms 103 and 104 by sliding therethrough, and is similarly held in place'by a set-screw 110 passing'through one or both of said arms and bearing against the shaft 107. Suitable spacing members or colla 111 may hold the pawls 106 properly spaced from each other and new collars may be put in to accommodate a dili'erent spacing of the pawls 100.

l ariations may be resorted to within the scope of the invention, and portions of the improvements may" be used without others.

Having thus described my invention, I

1. A printing device adapted to be attached to a ribbon-printing type-bar typewriting'machine having a frame, said device comprising a member adapted to fit upon the frame of the machine, a ribbon vibrator The cylinder I 98 may be provided with numbers tor the adapted to raise the ribbon. to effective po sition from a point below the printing line, and a ribbon guideadapted to operate a rib b o nreversing device-in the typewriting'rma- (1111118. i

2. In a typewriting machine, the combination with a traveling platen-carriage, oi types adapted to print on the platen, a ribhon through which said types print,=a logotype-printing device adapted to print on said platen to one side of the printing point of the types,said ribbon normally below the printing point, a vibrator to raise the ribbon to the printing point, and a handle operable to cause the ribbon to rise to the printing point, and to fcause said device to print through the same ribbon.

3. A printing device adapted to be attached to a ribbon-printing type-bar typewriting machine having a traveling platen and a frame, said device comprising a member adapted to swing close to and outside of the frame to print upon the platen, a spring adapted to cause the device to print, a handle operable to first tension said spring while said member is restrained, handleoperated connections adapt-ed upon further movement to release the member to enable the spring to cause it to print, and guides on said device to carry the typewriter ribbon past the printing point of the member.

In a typewriting machine, the combination with a traveling platen carriage, of types adapted topr'int on the platen, a logotype-printing device adapted to print on said platen to one side of the printing point the types, a spring adapted to cause said device to print, a handle operable to first tension said spring while said device is re strained, and handle-operated connections, adapted upon further movement to release the device to enable the spring' to cause the device to print. i

5. In a'typewriting machine, the combi nation with a travelingplaten-carriage, of types adapted to print on the platen, a ribbon through which said types print, a logotyi 'ie-printing device adapted ,to print on said platen to one SltlGOftliG printing point 1 the types, said ribbon normally. below the printing point, a vibrator to raise the ribbon to the printing point, a spring adaptedto cause said device to raise the same ribbon and print through it, a handle oper; able to first tension sa d spring while said device is restrained, and handle-operated connections adapted upon further movement to release the device to enable the spring to 7 cause the device to print.

6. The combination with ahtypewriting device adapted to print at one side of the printing point of the types, and means for releasing said device by positioning said carriage.

7. The combination with a typewriting machine including a platen and a traveling carriage, of printing types adapted to print at columns selected by the travel of the carriage, a normally locked logotype-printing device adapted to print at one side of the printing point of the types, a ribbon normally clear of the printing point, a stretch of said ribbon through which said device may print, means for simultaneously raising said stretch to the printing point and causing printing by said device, and means for releasing said device by positioning said carriage. I

8. In a typewriting machine, the combination with a traveling platen-carriage and printing types, of a logotype-printing device adapted to print on the platen, a handle for operating said device, a latch for locking said handle, and a device on said'carriage adapted to cause the latch to be effective in certain positions of the carriage and to be ineffective in other positions of the carriage.

9. In a typewriting machine, the combination with a traveling platen-carriage and printing types, of a logotype-printing device adapted to print on the platen, a handle for operating said device, a latch for locking said handle, a lug on the carriage, a member adapted to be struck by said lug during the travel of the carriage to vary the position of the latch, and means for detaining the latch in any shifted position.

10. In a typewriting machine, the combination with a traveling platen-carriage and printing types, of a logotype-printing device adapted to print on the platen, a handle for operating said device, a latch for locking said handle, a lug on the carriage, a member adapted to be struck by said lug during the travel of the carriage to vary the position of the latch, a pivot for said member, and a single spring holding said latch at either limit of its throw.

11. In a typewriting machine, the combination with a traveling platen-carriage and printing types, of a logotype-printing device adapted to print on the platen, a handle for operating said device, a latch for locking said handle, a lug on said carriage, a pivoted member adapted to be struck by said lug to adjust its position, said latch having a pin-and-slot connection with said member, and a spring drawing on said pin, adapted to hold the latch in either of its adjusted positions. p

12. A printing device adapted to be at tached to a ribbon-printing type-bar typewriting machine having a traveling platen and a frame, said device adapted to be held fixed upon the frame, a member forming part of said device and adapted to swing close to the frame to print upon the platen, a dog normally holding said. member, a spring for causing the member to print, means for releasing the dog, and means on the device for guiding the typewriter ribbon past the printing point of the member.

13. A printing device adapted to be at tached to a tyi iewriting machine having a traveling platen and a frame, said device adzpted to be held fixed upon the frame, a member forming part of said device and adapted to swing close to the frame to print upon the platen, a dog for holding the member against printing, means traveling with the platen for selectively releasing said dog, and a handle for causing the member to print when released.

14. In a typewriting machine, the combina ion with a traveling platen, of types adapted to print against the platen, a logotype-printing device adapted to print against the platen to one side of the types, a dog normally holding said device, a normally ineffective ribbon, means operated by bringing the device to printing position, to bring the'ribbon to printing position, and means for releasing the dog and for moving the device.

15. A printing ,device adapted to be attached to a typewriting machine having a traveling platen and a frame, said device adapted to be held fixed upon the frame, a member forming part of said device and adapted to swing close to the frame to print upon the platen, a dog for holding the member against printing, means traveling with the platen for selectively releasing said dog, a pivot on which the member swings, a spring for swinging it around its pivot, a catch holding the member, and a handle adapted to first tension said spring and then release the catch.

16. In a typewriting machine, the combination with a traveling platen, of types adapted to print against the platen, a logotypeprinting device adapted to print against the platen to one side of the types, a pivot on which said device swings, a spring for swinging it around its pivot, a dog holding the device, a handle adapted to first tension said spring and then release said dog, a normally ineffective ribbon, and means operated by the device in coming to printing position, to make the ribbon effective.

17. In a typewriting machine, the combination with a traveling platen, of types adapted to print against the platen, a logotype -printing device adapted to print against the platen to one side of the types, a normally ineffective ribbon, and means operated by the de ice in coming to printing position, to make the ribbon effective to enable the device to print.

18. In a typewriting machine, the combination with a traveling platen, of types adapted to print against the platen, a logotype printing device adapted to print against the platen to one side of the types, a ribbon-spool adjacent the platen, a ribboncarrier for carrying a ribbon on the spool to printing position for the device, and a rib bon-vibrator for the types through which the free end of the ribbon is carried.

19. In a typewriting machine, the combination with traveling platen, of types adapted to print against the platen, a logotype printing device adapted to print against the platen to one side of the types, a ribbon-spool adjacent the platen, a ribboncarrier for carrying a ribbon on the spool to printing position for the device, and an independently operable ribbon-vibratorfor the types through which the free end of the ribbon is carried.

20. In a typewriting machine, the combination with a traveling platen, of types adapted to print against the platen, a logotype printing device adapted to print against the platen to one side of the types, a ribbon-spool adjacent the platen, a ribboncarrier for carrying a ribbon on the spool to printing position for the device, an independently operable ribbon-vibrator for the types through which the free end ofthe ribbon is carried, and a ribbon-reverse-feed mechanism comprising a controlling arm between the carrier and the spool.

21. The combination with a typew iting machine including aprinting ribbon, a car rier for said ribbon, and printing types, of a logotype-printer, ribbon-spools, and an extension of said ribbon, between the carrier and one of the spools, carried completely around said logotype-printer.

22. The; combination with a typewriting machine including a printing ribbon, a carrier for said ribbon, and printing types, of a logotype-printer, a frame for the typewriting machine, a secondary frame carrying the logotype-printer, adapted to be attached to the first frame, ribbon-spools, and an. extension of said ribbon carried around said secondary frame.

23. The combination with a; typewriting machine including a printing ribbon, a carrier for said ribbon, and printing types, of a logotype-printer, a pivoted arm on which said logotype-printer is carried, a ribbon-vibrator, and acam on said arm adapted to lift the vibrator.

24. A printing device adapted to be at tached to} a ribbon-printing type-bar type- Writing machine having a frame and a traveling platen, said device comprising a member adapted to swing close to and outside of the frame to print upon the platen, a manually operated. operating arm for said 7 member having a comparatively long swing,

a short stout spring for operating the member, a dog for holding the member, and connections between the arm, the dog and the spring.

25. A printing device adapted to be attached tol a ribbon-printing type-bar typewriting machine having a frame and a traveling platen, said device comprising a member adapted to swing close to and outside of the frame to print upon the platen, a manually operated operating arm for said member having a comparatively long swing, a short stout spring for operating the mem ber, a dog for holdin the member, connections between the arm, the dog and the spring, a catch adapted to hold the member against operation, and means travelingwith the platen for selectively releasing the catch.

26. In a typewriting machine, the combination with a traveling platen, of types adapted to print against the platen, a logotype printing device adapted to print against the platen at one side of the types, said device including a printing arm, an extension of said arm, a spring drawing on said extension, a handle for tensioning the I spring, a latch holding the arm, a connection from the handle for releasing the latch, and a ribbon normally out of printing position adapted to be raised to printing position by said arm.

27. In a typewriting machine, the combination with a traveling platen, of types adapted to print against the platen, a logo typeprinting device adapted to print against the platen at one side of the types, said device including a printing arm, an extension of said arm, a spring drawing on said extension, a handle for tensioning the spring, a catch for holding the arm, a con nection from the handle for releasing the catch, a lever operated by said handle, a cam-arm operated by said lever and having an extension in which said spring is anchored, a printing ribbon normally below printing position, and means for raising the ribbon'by operating said arm.

28. In a typewriting machine, the com-. bination with a t 'aveling platen, of types adapted to print against the platen, a logotype-printing device adapted to print against the platen'at one side of the types, an attachment adapted to be secured to the frame of the typewriting machine on which said logotype-printing device is mounted, and means on said attachment for guiding the typewriter ribbonpast said logotypeprinting device. i V

29. A printing device adapted to be attached to a typewriting machine having a traveling platen, a frame, ribbon spools and ribbon-operated ribbon-reversin mechanism, said device adapted to be he d fixed upon the frame, a member formingv part of said device and adapted to swing close to the frame to print upon the platen, ribbon guides adapted to guide the typewriting ribbon past the printing line of said member, means connected to one of said guides to enable the ribbon to operate the reversing mechanism, and means forming part of the device to raise and lower the ribbon at said printing line at the printing operation of the member.

30. A printing device adapted to be attached to a typewriting machine having a traveling platen, a frame, ribbon spools and ribbon-operated ribbonreversing mechanism, said device adapted to be held fixed upon the frame, a member forming part of said device and adapted to swing close to the frame to print upon the platen, ribbon guides adapted to guide the typewriting ribbon past the printing line of said member, means connected to one of said guides to enable the ribbon to operate the reversing mechanism, means forming part of the device to raise and lower the ribbon at said printing line at the printing operation of the member, acatch for preventing operation of said member, and means traveling with the platen, adapted to release said catch whenever the platen faces the member,

31. A printing device adapted to be attached to a ribbon-printing typewriting machine having a traveling platen and a frame, a member .forming part'of said device and adapted to swing close to the frame to print upon the platen, a fork in said device carrying the typewriter ribbon near the platen where the member prints, a swinging frame connected to the fork, and a connection whereby the swinging of the member to print raises the fork to raise the ribbon from a normally ineffective position, to cover the printing line.

82. A printing device adapted to be attached to a ribbon-printing typewriting machine having a traveling platen and a frame, a member forming part of said device and adapted to swing close to the frame to print upon the platen, a fork in said device carrying the typewriter ribbon near the platen where the member prints, a swinging frame connected to the fork, a cam on the member, and a follower on the swinging frame riding on the cam and adapted to raise the fork to raise the ribbon from a normally ineffective position, to cover the printing line.

A printing device adapted to be at tached to a typewriting machine having a traveling platen, a frame and key-driven type-bars, a member forming part of said device and adapted to swing close to the frame to print upon the platen a plurality of characters simultaneously, a spring for driving said member, a dog normally holding it, and a manually operable handle adapted to tension the spring and then release the dog to cause the member to print its characters to match the typebar printed characters.

3%. A printing device adapted to be at tached to a ribbonprinting typewriting machine having a traveling platen, a frame, and key-driven type-bars printing through a ribbon, a member forming part of said device and adapted to swing close to the frame to print upon the platen a plurality of characters simultaneously through the typewriting ribbon, a spring for driving said member, a dog normally holding it, a manually operable handle adapted to tension the spring and then release the dog to cause the member to print its characters to match the type-bar printed characters, and a ribbon carrier at the device normally holding the ribbon clear of the printing line, but adapted to lift it to the printing line at the operation of the member.

ALFRED G. F. KUROVVSKI. lVitnesses EDITH B. LIBBEY, V CATHERINE A. NEWELL.

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