US1964801A - Typewriting machine - Google Patents

Description

y 3, 1934- s. L. WALSOE TYPEWRITING MACHINE Filed June 19, 1930 2 Sheets-Sheet l ILJVENTOR Qz uldxzma QKJ/MM,

ATTORNEY y 3, 1934- s. L. wALsoE TYPEWRITING MACHINE Filed June 19, 1930 2 Sheets-Sheet 2 3 8 "m4 5 a l 7 5 I 4% fi 1M 1 6 0 T TI 5 7 EM 5 E T 1 Q? sK/Bzwv ATTORNEY ,WITNESS Patented July 3, 1934 UN'iTED STATES ATsNr o-Fric Application June 19, 1930-, Serial No. 462,300

20 Claims.

My invention relates to typ'ewriting and like machines and more particularly to key controlled means for printing the current date at a single operation. The main object of my invention, generally stated, is to provide comparatively simple and highly effective means of the character specified.

A further object of my invention is to provide means of the character referred to which are in the nature of attachments that may readily be embodied in existing typewriting machines with out modifying, or materially modifying, the existing structural features thereof.

Another object of my invention is to provide means that enable the types by which the date is printed at a single operation to be readily changed.

A still further object of my invention is to so construct the types carried by the auxiliary type bar of my present invention that said types cannot be improperly placed on the bar.

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 description and particularly pointed out in the appended claims.

In the accompanying drawings, wherein like reference characters indicate corresponding parts in the different views:

Fig. 1 is a detail, fragmentary, perspective view showing a portion of a typewriting machine equipped with the devices of my invention, and with the parts illustrated in the normal position.

Fig. 2 is a detail, fragmentary front view showing some of the parts illustrated in Fig. 1, with the auxiliary type bar in printing position.

Figs. 8, 4 and 5 are transverse sectional views of the auxiliary type bar taken at different points in the length thereof; Figs. 3 and 4 being sections on the lines 33 and 4- 1 respectively of Fig. 10, whereas Fig. 5 is asection on the line 5-5 of Fig. 12. In each instance the section is viewed r as indicated by the arrows at the companion section line.

Figs. 6, '7 and 8 are front views of the types for printing respectively the month, the day of the month, and the year.

Figs. 9 and 10 are edge and side views respectively of the pivotally supported section of the type bar.

Fig. 11 is an enlarged, detail, end view of the detachable type carrying section of the type bar,

shown detached.

Fig. 12 is an enlarged, detail, side view of the same with parts broken away.

Fig. 13 is a side view of the type locking pin.

Fig. 14 is a side view of the cushion spring for the types.

Fig. 15 is a view corresponding to Fig. 12 but showing the type carrying section as it appears when the printing faces of the types are exposed to View.

Fig. 16 is an enlarged, detail, perspective view of the member or lever which coacts with the auxiliary type bar to actuate it.

My invention is shown embodied in the present. instance in a Remington typewriting machine such as the No. 23, for example, only so much of said machine being shown as is necessary to arrive at an understanding of my invention in its embodiment therein. It should be understood, however, that the invention is of more or less general application and may be included in yarious kinds of typewriting and like machines.

A fragmentary portion of the frame 1 of the machine is shown in Fig. 1. The usual type bar segment 2 may be supported in the machine frame and may carry the usual type bar center guide 3. The ribbon vibrator 4 carrying the ribbon 5 into the path of the types on the usual complement of type bars may be actuated in usual manner at each actuation of a printing key. Only one of the usual complement of type bars is shown, that being indicated by the reference numeral 61.

In the No. 23 Remington machine, for exam ple, each of the usual complement of type bars as it approaches the printing position, coacts with and actuates a universal bar which in turn actuates the escapement mechanism which controls the step-by-step letter-space movements of the carriage, and the platen 6 carried thereby. This fact is mentioned in order to make it clear at this time that the date writing auxiliary type bar of my present invention does not act .on said universal bar for the escapement mechanism, but an actuation of said auxiliary type bar does, nevertheless, effect an actuation of the usual separate and distinct universal bar by which the operation of the ribbon vibrator is brought about, as will hereinafter more clearly appear.

In order to effecta control of my auxiliary date printing type bar from the key board of the machine, I employ a key lever that works in one of the guide slots 8 in the usual fixed guide comb 9.. In the present instance I have placed such key lever '7 in the guide slot 8 usually occupied by the right hand case shift key lever in said Remington machine, although the key lever 7 may be conveniently substituted for any one of several other key levers, preferably near the right hand side of the key board. Usually there is sufficient room at the right hand end of the guide comb in which to mount an additional key lever without removing any of the usual key levers, and such arrangement may be resorted to if desired, although the present construction lends itself to ready embodiment in the machine by the substitution first mentioned.

The key lever '7 is preferably shaped as shown in- Fig. 1 and extends to a point near the rear of the machine where it is pivoted at 10 on an inwardly extending stud 11 riveted to a bracket plate a detachably secured by screws in usual tapped openings in the base of the frame 1. This key lever is provided at its forward endwith a key 12 arranged in the key board of the machine. A laterally projecting pin 13 on the key lever '7 works in a slot in an angular lever 14 mounted on a pivot 15 carried by a stud 16 that is riveted to and projects inward from the bracket plate a. The upright arm of the angular lever 14 is bent inward at its end where it carries a headed pin 1'7 which works in a cam slot 13 in an actuating member or lever 19 for the auxiliary type bar to be later described. The lever 19 is pivoted at 20 on a hanger 21 secured by screws 22 to the front face of the type bar segment 2 at the right hand side thereof and beyond the slots 23 in which the usual type bars (including the type bar 61) work. The free end portion of the actuating lever 19 is twisted and bent at substantially right angles to the body portion of said lever and said end portion is apertured at 24 to receive the auxiliary date printing type bar therethrough. Said type bar is designated as a Whole by the reference numeral 25 and preferably comprises two units, members or sections 26 and 27 constructed and detachably connected together in. a manner which will be hereinafter described. The type bar 25 is pivoted at 28 on the hanger 21 and has a movement in the same plane as the actuating lever 19.

The construction and arrangement of the parts are such that the forward end. of the actuating lever 19 normally contactively engages the auxiliary type bar 25 near the outer free end thereof and has a sliding contact therewith as the type bar approaches the printing position. This contact of the actuating lever with the auxiliary type bar gradually approaches the pivot of said type bar as the latter approaches the platen. This results in providing an easy and comparatively slow start for the type bar 25, gradually accelerating the motion thereof as it approaches the printing position and affording an effective imprint.

The auxiliary type bar 25 is preferably constructed as follows:

As hereinbefore pointed out the type bar 25 preferably comprises two parts or sections 26 and 2'7, the former of which is pivoted at 28 to the hanger 21. This member 26 has a hub 29 that is received between jaws 30 on the hanger 21 through which the pivot 28 passes. The two sections 26 and 27 have means by which they may have an interlocking engagement against relative lateral displacement without interfering with a relative sliding movement when desired of the section 2'7 on the member 26 longitudinally of the latter, to rigidly connect the two sections together or to detach one from the other; To attain this result the member 26 is preferably formed substantially H-shape in cross section as shown in Fig. 4, with two channels 31in opposite side edges thereof that extend longitudinally of said member throughout a considerable portion of its length. This provides a central web 32 that unites the two sides of the member 26. A hole is pierced through one side of the member 26 and through the center web 32 therein to receive a locking member or pin 33, as shown in Figs. 3 and 10. This locking member is reduced at one end 34 where it is riveted to the free end of a leaf spring 35, anchored at its opposite end, at 36, to a side of the member 26. The opposite reduced end 3'7 of the locking pin 33 passes freely through an opening in the member 26 and projects outward from a side thereof, as shown in Fig. 3.- This extension 37 provides a finger piece by which the broader locking portion of the locking pin may be displaced against the force of the spring 35 to releasing position (as indicated in dotted lines in Fig. 10) where it is out of the channels 31 and free from locking engagement with the section 2'7, as will presently appear.

The type carrying, detachable section 27 comprises a fiat, bifurcated connecting stem 38 slotted longitudinally at 39 to provide the two arms 40. A locking recess 41 is formed in the two side walls of said slots 39 to receive the enlarged portion of the locking pin 33, which fits snugly in said recess. The distance between the two side walls of the slot 39 is substantially equal to the thickness of the web 32, whereas the thickness of each arm 40 is substantially equal to the breadth of the channel 31 in which it is received. It will be understood, therefore, that when the latch 33 is released, the section 2'7 is free to receive a sliding movement off the section 26 and that said sections are interlocked one with the other to prevent any relative lateral displacement between them. The type carrying section 2'7 may, therefore, be readily unlocked and detached at will from the section 26 and again restored to position after the types have been changed on the section 27, as will presently appear.

In order to enable the section 27 to be readily restored to and automatically locked on the section 26 I provide a cam 42 on the free end of each of the arms 40. When the stem of the section 2'7 receives a sliding motion into place along the section 26 the cams 42 will be brought into contact with-the rounded bottom end 43 of the enlarged portion of the locking pin 33 and cause said pin to be cammed or shifted to and held in the released position against the force of the spring 35. The locking pin will continue to ride on the surface of the arms 40 until the locking recess 41 reaches a position where it registers with the enlarged locking portion of the pin 33. The spring 35 will then force the said pin into the locking recess 41 thus automatically locking the sections 26 and 2'7 together in proper relation.

The means by which the types on the section 27 may be readily changed will now be described. 7 Fixed to the stem 38 of the section 2'7 is a type container or holder 44 preferably of box-like rectangular construction closed at the bottom and on four sides and open at the top. This containe'i in the present instance is of a size that will just receive with a snug fit the three types 45, 46 and 4'7, shown in Figs. 6, '7 and 8 respectively. The type 45 has a printing face, say, of three letters to designate the abbreviation of the month, as shown in Fig. 15. The type 46 has a printing face to print a numerical designation indicating the day of the month, and the type 4'7 has a printing face to designate the year. In order to readthe container.

ily change these types whenever desired, they are detachably held in the container 44 by a suitable releasable locking pin or bar 48, shown in detail in Fig. 13. In the present instance this pin or bar is shown with a reduced end 49 adapted to be received and seated in an opening of corresponding diameter in one side wall of the container 44. The main body portionof the pin is received and seated in a like opening corresponding to the greater diameter of the body portion of the pin in the opposite side wall of the container, as shown in Fig. 12. This locking pin is adapted to pass through registering recesses c in the rear sides of the types 45, 46 and 47 off-set to one side of the center thereof. The up and down dimensions of each of the recesses (as the parts appear in Fig. 5) is slightly greater than the diameter of the pin 48 for purposes which will presently appear. When the three types have been properly placed in the container or holder 44, all of the recesses 50 therein will be in alignment one with another and with the openings in the container in which the pin 48 is received. Therefore, the locking pin may be moved lengthwise into locking position through the recesses 50 to hold the types in place. If, however, any of the types should be placed in position in an inverted condition, then the body portion thereof would be extended into the path of the locking pin 48 in the axial movement of the latter into locking position and it could not be moved home to such position and would immediately indicate to the operator that one or more of the types have not been properly placed in the container or type holder and enable the positioning of the types to be corrected.

When the locking pin has been moved home to locking position, as shown in Fig. 12, the shoulder, where the reduced end 49 joins the body por tion, will bear against an inner wall of the container and limit further axial movement of the pin in one direction. When the pin 48 is thus positioned its opposite rounded end 51 will pro ject slightly beyond the outer adjacent wall of A latch or locking device 52 in the nature of a sheet metal strip or blade is pivoted at 53 on the container and is provided with a finger piece 54. An indentation 55 (see Fig. 12) is likewise formed in the latch 52 in a position to register and coact with the protruding rounded end 51 of the pin 48 when the latch is turned to the effective, full line position shown in Fig. 11. In this position the latch 52 not only will hold the locking pin against removal but the latch itself will be held against accidental movement around its pivot 53. When the latch is moved to the dotted line position in Fig. 11 the locking pin 48 may be shifted axially with the aid of its protruding reduced end 49 and removed from the type holder 44.

When the types are locked in place in the container, as shown in Fig. 5, the bottom ends of the types rest against a cushion which tends to resist a slight axial movement of the types in the container under the impact of the printing blow of the types against the platen. ihe cushion referred to, in the present instance, comprises a coiled spring 56 that loosely surrounds a pin or rod 57 fixed at its ends in opposite side walls of the container 44. The spring rests on the bottom wall of the container 44 and supports the types and normally holds them with the printing faces thereof in the same plane and the bottom walls of the recesses 59 hearing against the locking pin 48, as shown in Fig. 5. When the types receive a blow against the platen the cushion spring 56 affords a slight axial movement of each of the types in its holder assuring a perfect imprint from the faces of all three types. tioned result might be difiicult to obtain in the absence of the cushion spring and if all of the printing faces were on a single type.

in addition to the means hereinbefore described for preventing the types from being locked in the type holder in the event that one or more of the types are placed therein in an inverted position, I provide other means for preventing an improper placing of the types in the holdenwhich will now be described.

From an inspection of Figs. 5 to 8 and Fig. 12 it will be seen that each of the types is provided with an off-set flange 58 on what we will call the front thereof, whereas each of the terminal types 45 and 4'? is also provided in addition with an oil-set flange 59 projecting outward from the outer side thereof. On the other hand the intermediate type 46 is devoid of any flange 59. From this construction it follows that the operator knows that types must be assembled with all three flanges 58 aligned and presented on the same side of the assembly; that neither of the types 45 and 4? can be substituted for the other, since the close assembly shown in Fig. 12 could not be attained on account of the flanges 59, and

if improperly assembled in the manner indicated,

the types could not be placed in the container. Moreover, the operator knows that the intermediate type 46, devoid of any flange 59, occupies and must occupy the intermediate position and can occupy no other position in the assembly and enable the assembly to be placed in the type containerpr holder 44. Therefore, there are means provided for preventing an improper assembly of the types, and a locking of improperly assembled types in the type holder, considered from any point of View. Assuming the types selected for use to be the proper ones to indicate the date intended, say for example, Mar 31 30. then the operator need never look at the type faces in order to obtain a proper positioning of the types in the holder 44.

From an inspection of Fig. 16 it will be observed that one side wall of the opening 24 in the actuating lever 19 has a recess 60 provided therein. The purpose of this recess is to enable the parts to be assembled and permit the projecting end 37 of the locking pin to pass there through, as will be understood from a consideration of Fig. 1.

From an inspection of Fig. 2 it will be seen that in the movement of the auxiliary type bar to printing position it does not coact with the type bar center guide 3, but passes around one side thereof and above the guide, but that an imprint at the printing center is, nevertheless, effected.

Again looking at Fig. 1 it will be understood that the auxiliary type bar 25, and the types carried thereby, will clear the usual right hand terminal type bar 61, and that the latter is free to move to printing position without interference from the auxiliary type bar and the types carried thereby. Therefore, there is no interference between the usual complement of type bars and the auxiliary type bar of my invention.

It is necessary, of course, that some provision be made for supplying ink for types of the auxiliary date writing type bar. In the present instance I employ the ordinary inking ribbon 5 and control the operation thereof in the following This last men Hill manner from the lever 7. Referring particularly to Fig. 1, it will be seen that the key lever '7 for the auxiliary type bar has a depending arm 62 that terminates in a contact member or shoe 63. This contact member overlies the ordinary universal bar 64 which in said Remington machine is operatively connected with the ribbon vibrator 4 for actuating it to interpose the ribbon 5 in the path of the types on any of the usual type bars, such as the type bar 61, as it approaches the printing position. The universal bar 64 constitutes part of a frame mounted to vibrate on pivot screws 65 received in tapped openings in the base of the frame 1. It will be understood, therefore, that each depression of the finger key 12, aside from actuating the auxiliary type bar also will result in interposing the ribbon 5 in the path of the types on the auxiliary type bar, as such type bar approaches the printing position, as clearly illustrated in Fig. 2.

It has been hereinbefore explained that no operation of the usual universal bar that controls carriage escapement mechanism is effected by the operation of the auxiliary type bar, as is the case in the operation of any of the usual complement of type bars. No letter-space carriage feed is necessary or desired when the auxiliary type bar is actuated, the simultaneous imprint of the seven characters to indicate the date usually occurring when the carriage is in the first columnar field, or a given columnar field determined by the tabulator mechanism.

Usually the date printing type bar of my present invention is employed when a large number of work sheets are to be imprinted with the same date at, say, the last of each month for making out bills and where a large number of bills bearing the same date are sent out at one time and where speed and the saving of time and labor constitutes an important factor, although, of course, there is no restriction as to the use of the date printing device in this connection. It will be observed that by the employment of the date printing device in the manner described, each single operation of the key 12 effects a result that ordinarily would require some ten key strokes and a selective operation on different keys.

It will be seen that the devices of my invention are simple in construction and effective in use, and that said devices may be readily added in the nature of attachments to existing machines without modifying, or materially modifying, the existing structural features thereof.

Various changes may be made in the construction, and parts thereof may be employed without others, without departing from my invention as it is defined in the accompanying claims.

What I claim as new and. desire to secure by Letters Patent is:

1. In a typewriting or like machine, the combination of a type bar segment, a type bar center guide, an auxiliary type bar pivoted on said segment and movable to printing position over said type guide without being brought into cooperative relation therewith, said auxiliary type bar carrying a plurality of types, and means for detachably connecting the plurality of types to the auxiliary type bar so that different interchangeable types may be employed on said type bar at will and an imprint may be simultaneously effected from all of the types carried by said type bar.

2. In a typewriting or like machine, the combination of a type bar segment, a type bar center guide, an auxiliary type bar pivoted on said segment and movable to printing position over said type guide without being brought into cooperative relation therewith, said auxiliary type bar comprising two sections with means for detachably connecting said sections together, the outer detachable section carrying a plurality of types, and means for detachably connecting the plurality of types to said detachable section so that different interchangeable types may be employed on said type bar at will and an imprint may be simultaneously efiected from all of the types carried by said type bar.

3. 'In a typewriting or like machine, the combination of a type bar segment, a type bar center guide, an auxiliary type bar pivoted on said segment and movable to printing position over said type guide without being brought into cooperative relation therewith, said auxiliary type bar comprising two sections with means for detachably connecting said sections together, the outer detachable section carrying a plurality of types, means for detachably connecting the plurality of types to said detachable section so that different interchangeable types may be employed on said type bar at will and an imprint may be simultaneously effected from all of the types carried by said type bar, one of said types having printing faces to designate the month, another type having printing faces to designate the day of the month and a third type having printing faces to designate the year, a finger key in the key board of the machine, operative connections between said finger key and said auxiliary type bar for actuating the latter, a ribbon vibrator for moving the ribbon into the path of said types on the auxiliary type bar, and means controlled by an actuation of said key for actuating said ribbon vibrator.

4. In a typewriting and like machine, the combination of a type bar comprising two sections, means for detachably and rigidly connecting said sections to move together, said connecting means comprising a bifurcated shank on said detachable section having a locking recess in the arms thereof, means on the companion section for guiding said shank for movement thereon lengthwise of the type bar and for preventing relative lateral displacement between the two sections, a latch adapted to enter said locking recess when the latter is brought into register therewith during a sliding of the detachable section into place for locking the detachable section against lengthwise movement along the companion section, a finger piece for releasing said latch, cams on said bifurcated stem coacting with said latch to displace it to releasing position when the detachable section'is being positioned in place on its companion section, and a plurality of types detachably secured to said detachable section.

5. In a typewriting and like machine, the combination of an auxiliary type bar having a type container thereon, a plurality of types received in said container and detachable therefrom, and a cushion against which said types are seated.

6. In a typewriting and like machine, the combination of an auxiliary type bar having a boxlike type-receiving container, a plurality of types received in said container and each having a limited extent of independent movement therein under the force of the blow of the type bar, a

cushion spring which resists said movement of the types, and means for affording a removal of said types from said container and the substitution of other types therefor.

'7. In a typewriting and like machine, the combination of an auxiliary type bar having a boxlike type-receiving container, a plurality of types received in said container and each having a locking recess therein, and a locking pin that passes through said locking recesses and prevents a removal of the types from the container, said locking pin being detachable from said container to afford a removal of the types therefrom and a substitution of other types in their place.

8. In a typewrlting and like machine, the combination of an auxiliary type bar having a boxlike type-receiving container, a plurality of types received in said container and each having a locking recess therein, a locking pin that passes through said locking recesses and prevents a removal of the types from the container, said locking pin being detachable from said container to afford a removal of the types therefrom and a substitution of other types in their place, the relative proportions of said locking recesses and pin being such as to afford a limited extent of movement of the types in their container under the printing blow of the type bar, and a cushion contained within said container and cooperative with said types and tending to resist the movement thereof in the container under the force of the printing blow of the type bar.

9. In a typewriting and like machine, the combination of an auxiliary type bar having a boxlike type-receiving container, a plurality of types received in said container and each having a locking recess therein, a locking pin that passes through said locking recesses and prevents a removal of the types from the container, said locking pin being detachable from said container to afford a removal of the types therefrom and a substitution of other types in their place, and a releasable latch that holds said locking pin in effective position.

10. In a typewriting and like machine, the combination of a type bar segment, a hanger detachably secured to one side of the segment, an auxiliary type bar pivoted on said hanger, an actuating lever also pivoted on said hanger and cooperative with the type bar and having a sliding movement thereon that approaches the pivot of said auxiliary type bar as the latter approaches the printing position and effects a highly accelerated motion of said type bar, a key in the key board of the machine, connections from said key to said actuating lever, a plurality of types, and means for detachably connecting said types to said type bar, whereby types with different printing faces may readily be substituted for those on the type bar.

11. In a typewrit ng and like machine, the combination of an auxiliary type bar having a typecontainer thereon, a plurality of types received in said container and detachable therefrom, means for detachably holding said types in said container comprising a locking recess in each of said types off-set to one side of the center thereof and a locking pin that is adapted to pass through the recesses only when the types have been positioned within said container with the printing faces of the types properly disposed on the type bar.

12. In a typewriting and like machine, the combination of an auxiliary type bar having a typecontainer thereon, a plurality of types received in said container and detachable therefrom, and means on the terminal types for preventing each of them from being placed in the wrong end of the container.

13. In a typewriting or like machine in which though positively securing a plurality of date' printing types to said detachable type bar section, said types being arranged to simultaneously effect an imprint therefrom, a finger key, and means controlled thereby for actuating said auxiliary type bar.

14. In a typewriting and like machine, the combination of a type bar comprising two sections and mounted to effect an imprint at the printing center, means for detachably and rigidly connecting said sections to move together, said connecting means comprising a bifurcated rigid shank on said detachable section having a locking recess in the arms thereof, the companion section being substantially H-shape in cross section to receive in the channels thereof the bifurcated stein for movement thereon lengthwise of the type bar for preventing relative lateral displacement between the two sections, a latch adapted to enter said locking recess when the latter is brought into register therewith during a sliding of the detachable section into place and for positively look-- ing the detachable section against lengthwise movement along the companion section, and a plurality of types detachably secured to said detachable section.

15. In a typewriting or like machine having conventional type bars, the combination of an auxiliary type bar comprising two sections one detachably connected to the other, a plurality of date printing types carried by and removable from said detachable section, releasable means for positively locking said types to said detachable section, the construction and arrangement of the parts being such that a simultaneous imprint may be effected from said types at the printing center and the auxiliary type bar rests in inactive position without interference with the printing operation of adjacent type bars, a finger key in the key board of the machine, means controlled by said finger key for actuating said auxiliary type bar, a ribbon vibrator for moving the ribbon into the path of said types, and means controlled by an actuation of said key for actuating said ribbon vibrator to the same extent that it is actuated by an operation of the remaining type actions.

16. In a typewriting or like machine having conventional type bars, the combination of an auxiliary type bar comprising two sections one detachably connected to the other and mounted to eifect an imprint at the printing center, the auxiliary type bar resting in inactive position Without interference with the printing operation of adjacent type bars, three types carried by and removable from said detachable section, and locking means shiftable to and from engagement with said types for detachably securing them in place on said detachable section, one of said types having printing faces to designate the month, another type having printing faces to designate the day of the month and a third type having printing faces to designate the year, the construction and arrangement of the parts being such that a simultaneous imprint may be effected from said types at the printing center, the detachment of the detachable section of the auxiliary type bar facilitating a removal of types from and substitution therefor of other interchangeable types on said bar outside of the machine.

17. In a typewriting and like machine having conventional type bars, the combination of an auxiliary type bar which rests in inactive position without interference with the printing operation of adjacent type bars, said auxiliary type bar comprising two sections and mounted to effect an imprint at the printing center, means for detachably and positively connecting said sections to move together, said connecting means comprising a spring-pressed latch for automatically positively locking the sections together when the detachable section reaches a fixed definite relation relatively to the companion section of said auxiliary type bar and which prevents one section from being detached from the other section by a mere lengthwise pull exerted thereon, manually controlled means for shifting said latch to releasing position to aiford a detachment of the detachable section, means for automatically shifting said latch to releasing position during the positioning of the detachable section on its companion section, a plurality of types carried by and removable from said detachable section, said types being arranged to print simultaneously, and releasable means for positively locking said types to said detachable section.

18. In a typewriting and like machine having conventional type bars, the combination of an auxiliary type bar which rests in inactive position without interference with the printing operation of adjacent type bars, said auxiliary type bar comprising two sections and mounted to effect an imprint at the printing center, means for detachably and rigidly connecting said sections to move together, said connecting means comprising a bifurcated rigid shank on said detachable section having a locking recess in the arms thereof, means on the companion section which coact with said bifurcated shank for guiding it in its movement thereon lengthwise of the auxiliary type bar and for preventing relative lateral displacement between the two sections, a positively engaging latch adapted to enter said locking recess when the latter is brought into register therewith during a sliding of the detachable section into place and for positively locking the detachable section against lengthwise movement along the companion section, a finger piece for displacing said latch from looking position, a plurality of types carried by and removable from said detachable section, said types being arranged to print simultaneously at the printing center, and releasable means for positively looking said types to said detachable section.

19. In a typewriting or like machine having conventional type bars, the combination of an auxiliary type bar which rests in inactive position without interference with the printing operation of adjacent type bars, said auxiliary type bar comprising two sections one detachably connected to the other and mounted to efiect an imprint at the printing center, a plurality of date printing types carried by said detachable section and arranged to efiect a simultaneous imprint therefrom, and means for detachably looking said types to said detachable section, said locking means comprising a releasable locking bar cooperative with said plurality of date printing types for positively holding the types against accidental displacement from said detachable section.

20. In a typewriting or like machine having conventional type bars, the combination of an auxiliary type bar which rests in inactive position without interference with the printing operation of adjacent type bars, said auxiliary type bar comprising two sections one detachably connected to the other, a plurality of date printing types carried by said detachable section and arranged to simultaneously effect an imprint from all of said types at the printing center, means for detachably securing said types to said detachable section, said means comprising a looking bar shiftable manually into and out of engagement with said types for positively holding the types against accidental displacement from said detachable section and for affording a removal of the types when desired, a finger key in the keyboard of the machine, and means controlled by said finger key for actuating the auxiliary type bar.

SIGURD L. WALSOE.

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