US2037769A - Typewriting and like machine - Google Patents

Description

Aprfifl 23, 1936. E s DQDGE TYPEWRITING AND LIKE MACHINE s SheetsSheet 1 Filed Jan. 3Q, 1955 INVENTOR A T TOH/VE Y April 193$ E. s. DODGE 2,037,76

' YTYPEWRITING AND LIKE MACHINE Filed Jan" 50, 1935 3 Sheets-Sheet 2 -/NVENTOF? ATTORNEY Aprifi 21, 1936. E, 5 DODGE TYPEWRITING AND LIKE MACHINE 3 Sheets-Sheet 3 Filed Jan. 30, 1935 ATTORNEY Patented Apr. 21, 1936 UNITED STATES PATENT OFFICE TYPEWRITING AND LIKE MACHINE Delaware Application January 30, 1935, Serial No. 4,119

18 Claims.

My invention relates to typewriting and like machines and is directed more particularly to the provision of means for locking the line spacing mechanism against actuation.

It has been found heretofore that in some typewriting and like machines a line spacing operation would at times be inadvertently and automatically effected when not intended and more particularly when the carriage was freed from control of its escapement mechanism and was moved in the direction of its feed either under control of the tabulator mechanism or on the depression of the usual carriage release key. Such inadvertent line space would not ordinarily be observed by the operator until after writing was effected which would result in destroying the work; compelling the operator to do it over.

One of the main objects of my invention, generally stated, is to provide means for overcoming this defect.

Stated more specifically, an object of the invention is to provide automatically operating means for preventing an actuation of the line spacing mechanism whenever the carriage is freed from control of its escapement mechanism.

A further object of my invention is to provide adjustable means to enable the locking means by which the line spacing mechanism is prevented from being operated to function properly under different conditions of use.

A still further object of my invention is to provide simple, inexpensive and highly effective means of the character specified that may be readily incorporated in existing machines without modifying, or materially modifying, the existing structural features of such machines and which may be applied thereto and combined therewith in the nature of an attachment.

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 designate corresponding parts in the different views:

Fig. 1 is a fragmentary side elevation with parts in section of the upper portion of a typewriting machine embodying my invention, the parts being shown in normal position,

Fig. 2 is a fragmentary top plan View of parts of the structure shown in Fig. 1.

Figs. 3, 4 and 5 are fragmentary, detail side 55 elevations of the automatically operating locking means for the line spacing mechanism, together with some of the associated parts.

Fig. 6 is a fragmentary side elevation of the line space regulating means and some of the associated parts.

Fig. 7 is an enlarged, detail, transverse sectional View of the locking means and some of the associated parts, the section being taken on the line l-'! of Fig. 1 and looking in the direction of the arrows at said line.

Fig. 8 is an enlarged, detail, transverse, vertical sectional view of the same taken on the line 8-8 of Fig. 4. and looking in the direction of the arrows at said line.

Fig. 9 is an enlarged, detail, perspective view of the bracket on which the locking member is mounted.

Fig. 10 is a detail, fragmentary, side elevation of the locking member and some of the associated parts.

Fig. 11 is an enlarged, detail, side elevation showing a portion of the carriage releasing means and some of the associated parts.

Fig. 12 is a detail, top plan view as seen from the rear of the machine of a portion of the carriage return mechanism and associated parts.

Fig. 13 is a fragmentary skeletonized side elevation, with parts omitted, of a portion of the tabulator mechanism.

I have shown my invention in the present instance embodied in an electrified Remington bookkeeping machine in which the features of the invention may be readily incorporated in the nature of an attachment without modifying, or materially modifying, the existing structural features of said machine. It should be understood, however, that the invention is not restricted to its embodiment in said machine but may be employed in typewriting and like machines generally, wherever found available.

The said electrified Remington bookkeeping machine includes automatically operating and key controlled power actuated carriage return mechanism of the character disclosed in the patent to Hart No. 1,978,997 dated October 30, 1934. Said machine also includes power actuated tabulator mechanism of the character disclosed in the patent to I-Iart No. 1,973,314 dated September 11, 1934, and also includes automatically operating means for actuating the line spacing mechanism on the return of the carriage of the character disclosed in the patent to Hart No. 1,567,590 dated December '29, 1925. Only fragmentary parts of such mechanisms are shown herein in order to aid in arriving at an understanding of the advantages of the present invention and the embodiment thereof in combination with said mechanisms.

I shall first describe parts of the usual form of electrified Remington bookkeeping machine including parts of the mechanisms above referred to and shall thereafter describe the devices of my present invention in cooperation therewith.

The frame of the machine comprises a base section I5 and an upper section which includes a top plate I6 mounted on suitable corner posts (not shown) and a tabulator frame I! secured to and which may be regarded as a part of the upper frame section.

A carriage includes a truck designated as a whole by the reference numeral I8 which is supported in the usual manner to travel over the top plate I6 from side to side of the machine. Crossed anti-friction rollers I9 coact with grooved rails 29 of the carriage truck and with fixed guide rails 2| to support the carriage for such traveling movement.

A cylindrical platen 22 is mounted in a platen frame designated as a whole by the reference numeral 23 and which is connected to the main truck of the carriage by the usual parallel links 24, as disclosed more clearly in Figs. 3 and 4. The platen. frame carries a centrally disposed roller 25 which bears on a case shift rail 26 operatively connected in the usual manner to a case shift key (not shown) in order to shift the platen for upper case writing.

The usual spring drum (not shown) impels the carriage in the direction of its feed under control of the usual carriage escapement mechanism and under a tabulating operation, as will presently appear.

The escapement mechanism in the present instance comprises an escapement wheel 21 con trolled in its step-by-step movement by feed dogs 28 and 29 carried by a dog rocker which is actuated in the usual manner at each printing operation or on the actuation of the space key. The escapement wheel is operatively connected to a feed pinion 39 to afford a turning movement of the latter and a letter space advance of the carriage as the escapement wheel is allowed to be intermittently turned. A feed rack 3| carried by the carriage normally meshes with the feed pinion 39 to control the advance of the carriage under the operation of the carriage escapement. The feed rack 3! is carried by arms 32 pivoted at 33 to the rear cross bar or rail 20 of the carriage truck for movement into and out of mesh with the feed pinion 36.

The usual carriage release key 34 (Fig. 1) is provided on a lever 35 fulcrumed at 36 to the carriage truck I8. The lower end of this lever is connected to a rearwardly extending spring returned link 3? which in turn is pivoted at its rear end, as at 38, to a feed rack lifter in the nature of a bell crank lever 39 pivoted to the carriage truck at 49. The lever 39 is provided with a rearwardly extending arm M which carries a contact shoe 42 that underlies the feed rack SI and is adapted to lift it out of mesh with the feed pinion when the release key 34 is depressed. A like carriage release key and connections to the feed rack may be provided at the other side of the carriage.

The devices of my invention are equally effective whether the platen is permanently maintained in the upper case position for writing only upper case characters or is shiftable at will from lower to upper case position, as will hereinafter more clearly appear. In the former case the lower, case-shift screw stops 43 are adjusted up to the dotted line position shown in Fig. 4 to hold the platen buffer springs 45 against the upper screw stops 43 and thus maintain the platen in its upper case position. When the construction is arranged for case shifting movement the lower stops 43 are backed down to the full line position shown in Fig. 4.

In addition to the release of the carriage from control of its escapement mechanism by either of the release keys 34, such a release also is effected in the usual manner by an actuation of the tabulator mechanism which may be of any suitable construction but is shown in the present instance to be a denominational tabulator such as is disclosed in the above mentioned patent to Hart No. 1,973,314. Such mechanism comprises column stops 46 adjustable to different points along a column stop bar 41 fixedly supported on rearwardly extending brackets 48 secured to the carriage truck I8. Cooperative with the column stops 46 is a set of denominational stops 49 carried by the tabulator frame I! and each of which is controlled by a spring returned actuating stop lever 59. Each lever 59 is controlled by a slide 5| (Fig. 12) which is actuated by an arm 52 that receives a rearward movement from normal position by power actuated means (not shown) through a link 53. The power actuated means are controlled to selectively actuate the stops 49 by the usual connections from tabulator levers 54 each carrying a tabulator key 55.

The usual carriage releasing means controlled by the tabulator mechanism is employed. Referring more particularly to Fig. 1 it will be seen that such releasing means includes a rack lifting arm 56 which carries a shoe 51 that underlies the feed rack 3|. The arm 56 is pivoted at 58 on a bracket 59 on the top plate I6. A rearwardly projecting arm 66 is connected to the arm 56 and carries an adjustable member 6I to which a depending link 62 is pivoted at 63. The link 62 is connected through the usual train of connections (not shown) to a link 64. The upper end of this last mentioned link is connected at 65 to a forwardly projecting arm 66 of a frame which is pivoted at 61 to the tabulating frame I I and carries a universal bar 68 that extends across the series of stop levers 50 and coacts therewith. The construction is such the depression of a tabulator key 55 results in projecting a denominational or tabulator stop 49 to effective position and in simultaneously lifting the feed rack 3| out of mesh with the feed pinion 39, thus freeing the carriage from control of its escapement mechanism and placing it in the control of the tabulator mechanism.

The electrified Remington bookkeeping machine is equipped with automatically operating and key controlled power actuated carriage return mechanism such as is disclosed in the above mentioned Hart Patent No. 1,978,997. I have illustrated only sufiicient of this mechanism in the accompanying drawings to arrive at an understanding of disadvantages which my present invention is intended to overcome.

In addition to the power actuated carriage return mechanism I have shown in the accompanying drawings the automatically operating line spacing mechanism employed in said machine and which is similar to that disclosed in the above mentioned Hart Patent No. 1,567,590.

In the accompanying drawings the reference numeral 69 designates a carriage return gear which is carried by a shaft 10 which when the carriage reaches the end of a line, or an appropriate carriage return key (not shown) is actuated, will be connected to a constantly running motor through suitable clutches, not shown. Referring to Fig. 12 it will be seen that the gear 69 is in constant mesh with a rack bar ll carried by the carriage and mounted for sliding movement thereon. Thus, one end of the rack bar is connected by a pin 12 carried by the carriage and which passes through a longitudinally extending slot 13 in the rack bar. The other end portion of the rack bar (see Fig. 11) has a longitudinally extending groove 14 therein and in which is received the upturned terminal end 15 of a supporting bracket 16 secured to the carriage. From a consideration of Fig. 12 it will be understood that when the gear 59 is turned by the motor in the direction of the arrow a, the rack bar II will first be moved from left to right, or from right to left as the parts appear in Fig. 12, the limit of its independent movement before the carriage is returned. This independent movement of the rack bar is utilized to actuate the line spacing mechanism. Thus, it will be seen that the right hand end of the rack bar ll (left-hand end as the parts appear in Fig. 12) coacts with a depending pin 1'! on a crank arm i8 fixed to the lower end of a spring returned rock shaft 19 (see Fig. 1). The shaft i9 is mounted in a bracket 88 carried by the carriage truck. Secured to the upper end of the shaft 19 is a second crank arm '8 which carries a depending pin 8| adapted to coact with an off-set ear 82 of a line spacing actuating link 83. The rear end of this link is bifurcated to provide two arms 85 and 85 with an intervening slot 86. A pin Bl extends across a slot 88 (Fig. 9) in a bracket 89 and is received in the slot 86 of the link 83, whereas the arms 84 and 85 of said link are received in the slot 88 and are guided by the side walls thereof. The rear end of the link 83 is thus supported and guided for sliding movement fore and aft of the machine by the bracket 89. This bracket is fixed on and receives a case shifting movement with the platen frame 23 so that the rear end of the actuating link t3 also partakes of the case shifting movements of the platen and platen frame, assuming the stop screws 53 to be lowered to the Fig. 1 position to permit a case shifting of the platen.

The forward end of the actuating link 83 is pivoted at 90 to one arm of a bell crank 9| pivoted at 92 to a side bar of the carriage truck. The other arm of this bell crank is connected by a link 93 to the usual crank arm 9 fixed on a spring returned rock shaft 95. The forward end of a second actuating link 95 is pivoted on the same bolt 90 which connects the actuating link 83 to the bell crank 91. The rear end of the link 96 is pivoted at 91 to a line spacing pawl 98 which in turn is pivoted at 99 to a pawl carrier I09. Said carrier is mounted to turn on the pivotal axis of the platen and the pawl has a limited movement relatively thereto due to a pin and slot connection NH, 102 between the pawl and carrier. The initial part of the line spacing movement of the pawl 98 is effected independently of its carrier and is sumcient to move the hook-like end of the pawl into engagement with a tooth of a line spacing wheel I03 connected to turn with the platen 22. A continued motion of the pawl 98 causes it and the carrier IE9 to turn together around the axis of the platen until the heel I94 of the pawl engages a fixed stop I05 in the path thereof shown indetail in Fig. 6 and has been omitted in Fig. 1 to avoid obscuring other features of the construction. Said device comprises a platelike member I06 pivoted to turn on the axis of the platen and provided with a laterally projecting lug or stop ID! that extends into the path of the pawl carrier N10 to limit the return movement thereof in a counter-clockwise direction as the parts are shown in Fig. 6. The device I08 may be adjusted to different positions with the aid of a finger piece 106 which is connected toa locking piece I08 that is adapted in the present instance to engage in either of two notches 109 in a fixed locking segment H6 secured to the platen frame 23. A spring (not shown) contained within the finger piece me tends to hold the locking member I88 in. either of the notches I09 and thus retains the line space regulator in either of the two positions to which it may be adjusted for either single or double line spacing.

It will be understood that the adjustment of the line space regulating device determines the normal position of the pawl 93 with reference to the line spacing wheel I03 and thus regulates the line spacing for either single or double spacing, but that said pawl is always moved to the same point where it is arrested by engaging the stop I05 irrespective of the extent of the line space. This fact should be borne in mind in connection with the consideration. of the line space lock of my present invention which is to follow.

The machine as thus far described is part of the usual construction embodied in the electrified Remington bookkeeping machine.

As hereinbefore pointed out it has been found in practice that it sometimes occurs in said machine that an automatic line spacing operation will be inadvertently effected when not intended. Thus, for example, when the carriage is released from control of its escapement mechanism and runs rapidly in the direction of its feed, due to lifting the feed rack 3! out of mesh with its feed.

pinion by an actuation of a tabulator key 55 or either of the carriage release keys 34 it will sometimes occur that a line spacing operation will be effected when not intended. This will be more clearly understood when it is considered that the usual carriage retarder (not shown) is maintained in geared connection with the carriage return gear 69 and is actuated thereby when the carriage is freed from its escapement mechanism and travels rapidly in the direction of its feed. At such time there will be a certain amount of resistance offered by the gear 69 and the parts connected with and controlled thereby to a movement of the rack bar H. thus released the parts have the relation indicated in full lines in Fig. 12 and the resistance mentioned above to the movement of the rack bar 'Il tends to hold it while the carriage travels independently thereof until the pin 12 reaches the outer end of slot 13. The rack bar will then be picked up and travel with the carriage. During this movement of the carriage relatively to the rack bar H, the pin 11 moves with the carriage and. will engage the cooperative and the held rack bar and bring about an unintentional actuation of the line spacing mechanism. The fact that such unintentional line spacing opera- When the carriage is tion has been effected is not apt to be observed by the operator until after the line has been completed and the carriage returned to begin a new line, even if it is observed then. This results in making an entry on thr wrong line and the work sheets may have to bl. destroyed and new ones introduced and the work done over.

The unintentional line spacing operation referred to above does not take place at every free run of the carriage or on short tabulating jumps thereof, but is apt to take place on relatively long tabulating jumps or on a long and rapid run of the carriage under control of a carriage release key.

It is one of the main purposes of the present invention to overcome these difficulties and to provide automatically operating means for preventing an actuation of the line spacing mechanism whenever the carriage is freed from control of its carriage feed mechanism and such means will now be described in their cooperation with the mechanism above described.

Referring more particularly to Figs. 3 to 5 and 7 to 10 it will be seen that the bracket 89 is somewhat similar to that ordinarily employed but has been slightly modified in the present instance for cooperation with devices of my present invention. This bracket is fixedly though detachably secured by screws H! to the right-hand end plate of the platen frame 23. An upstanding part I I2 is provided on said bracket and a locking member or slide, designated as a whole by the reference numeral H3, is mounted for vertical sliding movement on the part H2. The locking member H3 may be formed from sheet metal and is provided with longitudinally extending slots I M. A headed, shouldered, screw ||5 extends through each of said slots and is received at its threaded end in a tapped opening IS in the part H2. The member H3 is thus mounted on the platen frame to receive a vertical shifting movement independently thereof and to afford an independent movement of the bracket 89 with the platen frame in the case shifting movement of the latter. The lower end of the member H3 is provided with a laterally extending ear pierced with a tapped opening to receive a contact screw l8, a lock nut I I9 holding the screw in its adjusted position on the member H3. The lower end of this contact screw rests on the top of the feed rack 3| so that when the latter is disengaged from the feed pinion the member H3 will be moved up from, say, the Fig. l to the Fig. 3 position for purposes which will hereinafter appear. The locking member I I3 carries a second laterally projecting ear I20 at the rear edge portion thereof. This ear is pierced and tapped to receive a horizontally disposed screw stop or looking abutment |2| provided with a lock nut I22 to hold it in its adjusted position on the member H3.

As the parts are shown in various views except Fig. 10 it is presumed that the line space regulator has been set to afford a double line space as indicated in Figs. 1 and 6. In Fig. 10 the parts are shown in normal position as they appear when the line space regulator has been adjusted to afford a single line space only. However, whether the regulator is set for a single or double line space the limit of line spacing movement of the actuating link 83 will be the same although the normal position thereof will be changed whether set for single or double line spacing and whether the platen be in the upper or lower case position, the screw stop |2| will coact with the actuating link 83 to lock the line spacing mechanism against effective actuation in the event that the feed rack 3| is freed from its feed pinion 30. On the other hand Whenever the feed rack is in mesh with the feed pinion the locking stop |2| will not interfere with a complete operation of the actuating link 83 and a line spacing of the platen. Thus, Fig. 1 shows the parts with the platen in the lower case position and the feed rack 3| in engagement with its pinion 30. It will be observed that at this time the stop screw |2| is in alignment with the slot 86 of the link 83 and will not interfere with a complete actuation of the link 83.

In Fig. 3 the same disposition of the parts is represented except that the feed rack 3| has been released from the feed pinion. Whether such release has been effected by an actuation of a tabulator key 55 or a carriage release key 34 is immaterial. It will be seen that at this time the rack has lifted the locking member H3 so as to bring the screw stop |2| into the path of the upper arm 84 of the actuating link 83 to prevent a complete actuation thereof or an actuation that is sufficient or effective to produce a line spacing movement of the platen.

The parts are represented in Fig. 4 as they appear when the feed rack is in mesh with its feed pinion and the platen has been shifted for upper case writing. The effect of shifting the platen frame to upper case position is to elevate the rear end of the actuating link 83 with it and position the lower arm 85 thereof above and out of alignment with the screw stop |2|, so that the line spacing mechanism is free to be actuated at this time. When, however, the parts are in this same position except that the feed rack 3| has been disengaged from its feed pinion 30, as shown in Fig. 5, the line spacing mechanism will be locked against effective actuation. This is due to the fact that the elevation of the feed rack is effective to carry the locking member H3 up with it and interpose the screw stop |2| into the path of the lower arm 85 of the actuating link. A restoration of the rack 3| from the Figs, 3 and 5 positions into mesh with the feed pinion is effective to free the link from the obstruction of the locking device I I3 and a line spacing operation may be effected.

By adjusting the screws H8 and |2|, I am enabled to regulate the action of the parts to effectively bring about a locking of the line spacing mechanism as described.

From the foregoing description it will be understood that by the simple addition of the locking member I I3 in the nature of an attachment to existing machines I am enabled to provide, without modifying, or materially modifying the existing structural features of such machine, a highly effective means for locking the line spacing mechanism against effective actuation whenever the carriage is released from control of its escapement mechanism and for overcoming the disadvantages hereinbefore pointed out.

When I use the term carriage herein and in the accompanying claims such term is employed in a comprehensive sense to include either a platen or paper carriage or a carriage which carries the printing instrumentalities commonly employed in fiat platen machines for example.

It will be observed that both the tabulator key 55 and the carriage release key 34 are associated with means for controlling the locking member I I3 and the release of the carriage and that therefore, either or/and both of said keys and the associated parts constitute key controlled means for preventing an actuation of the line spacing mechanism when the carriage is freed from control of its escapement mechanism.

I believe that I am the first to have provided means for preventing an actuation of the line spacing mechanism whenever the carriage is freed from control of its carriage feed mechanism and wish to be understood as claiming the same broadly, irrespective of the character of typewriting and like machines in which such means may be included.

Various changes may be made in the construction 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 and like machine, the combination of v a carriage, escapement mechanism therefor including a feed rack movable into and out of effective position, line spacing mechanism, and automatically operating locking means controlled by the movement of said feed rack out of effective position for locking said line spacing means against operation.

2. In a typewriting and like machine, the combination of a carriage, escapement mechanism therefor, carriage releasing means for releasing the carriage from control of its escapement mechanism, line spacing mechanism, and automatically operating means for preventing an actuation of said line spacing mechanism when the carriage is released from control of its escapement mechanism.

3. In a typewriting and like machine the combination of a carriage; escapement mechanism therefor including a feed pinion and a feed rack movable into and out of mesh with said feed pinion; line spacing mechanism; and locking means cooperative with said line spacing mechanism to lock it against operation, said locking means being controlled by the movement of said feed rack out of mesh with the feed pinion to lock the line spacing mechanism against actuation.

4. In a typewriting and like machine, the combination of a carriage; escapement mechanism therefor including a feed pinion and a feed rack movable into and out of mesh with said feed pinion; line spacing mechanism; and locking means cooperative with said line spacing mechanism to lock it against operation, said locking means being controlled by the movement of said feed rack out of mesh with the feed pinion to lock the line spacing mechanism against actuation and being controlled by the movement of said feed rack into mesh with its feed pinion to free the line spacing mechanism from control of said locking means.

5. In a typewriting and like machine, the combination of a carriage, tabulator mechanism therefor, line spacing mechanism, and automatically operating means for preventing an actuation of said line spacing mechanism when said tabulator mechanism is actuated.

6. In a typewriting and like machine, the combination of a carriage, tabulator mechanism therefor, line spacing mechanism, and automatically operating means for preventing an actuation of said line spacing mechanism when said tabulator mechanism is actuated and for enabling said line spacing mechanism to be actuated when the tabulator mechanism returns to normal position.

'7. In a typewriting and like machine, the combination of a carriage; tabulator mechanism therefor including cooperative tabulator stops, and means for freeing the carriage from control of its escapement mechanism when one of said tabulator stops is projected into the path of another; line spacing mechanism; and automatically operating means for preventing an actuation of said line spacing mechanism when the carriage is freed from control of its escapement mechanism by an actuation of the tabulator mechanism.

8. In a typewriting and like machine, the combination of a carriage, escapement mechanism therefor, key controlled means for freeing the carriage from control of its escapement mechanism, line spacing mechanism, and automatically operating means for preventing an actuation of said line spacing mechanism when the carriage is freed from control of its escapement by said key controlled means.

9. In a typewriting and like machine, the combination of a carriage, escapement mechanism therefor, key controlled means for freeing the carriage from control of its escapement mechanism, line spacing mechanism, and automatically operating means for preventing an actuation of-said line spacing mechanism when the carriage is freed from control of its escapement by said key controlled means and for enabling said line spacing mechanism to be actuated when the carriage is restored to control of its escapement mechanism.

10. In a typewriting and like machine, the combination of a carriage, escapement mechanism therefor, a carriage release key, means controlled thereby for freeing the carriage from control of its escapement mechanism, a tabulator key, means controlled thereby for freeing the carriage from control of its escapement mechanism, line spacing mechanism, and automatically operating means for preventing an actuation of said line spacing mechanism on the actuation of either the said carriage release key or tabulator key.

11. In a typewriting and like machine, the combination of a carriage, a case shiftable platen carried thereby, carriage escapement mechanism, and automatically operating means for preventing an actuation of said line spacing mechanism when the carriage is freed from control of its escapement mechanism irrespective of the case position in which the platen may be located.

12. In a typewriting and like machine, the combination of a carriage, escapement mechanism therefor, means for freeing the carriage from control of its escapement mechanism, line spacing mechanism, a locking member carried by the carriage and movable into and out of the path of a part of said line spacing mechanism, and means controlled by the freeing of the carriage from control of its escapement mechanism for controlling the movement of said locking member, whereby when the carriage is freed from control of its escapement mechanism the line spacing mechanism is automatically locked against actuation and when the carriage is under control of its escapement the line spacing mechanism is free to be actuated.

13. In a typewriting and like machine, the

combination of a carriage, escapement mechanism therefor, line spacing mechanism, and key controlled means for freeing the carriage from control of its .escapement mechanism and for simultaneously preventing an actuation of the line spacing mechanism.

14. In a typewriting and like machine, the combination of a carriage; escapement mechanism therefor including a feed pinion and a feed rack movable into and out of mesh with said feed pinion; line spacing mechanism; and a locking member movable into and out of the path of a part of said line spacing mechanism to prevent an actuation thereof or permit its actuation, said locking member being controlled in such movements by said feed rack.

15. In a typewriting and like machine, the combination of a carriage; escapement mechanism therefor including a feed pinion and a feed rack movable into and out of mesh with said feed pinion; line spacing mechanism; and a locking slide carried by the carriage and movable into and out of the path of a part of said line spacing mechanism to prevent an actuation thereof or permit its actuation, said locking slide resting on and being controlled in such movements by said feed rack, whereby when the rack is released from the feed pinion the locking slide will function to lock the line spacing mechanism and when the feed rack is in mesh with its feed pinion the locking slide will release the line spacing mechanism.

16. In a typewriting and like machine, the combination of a carriage; escapement mechanism therefor; line spacing mechanism; and key controlled means for freeing the carriage from control of its escapement mechanism and for simultaneously preventing an actuation of the line spacing mechanism, said last mentioned 1'7. In a typewriting and like machine; the combination of a carriage; escapement mechanism therefor including a feed pinion and a feed rack movable into and out of mesh with said feed pinion, line spacing mechanism, a locking member movable into and out of the path of a part of said line spacing mechanism to prevent an actuation thereof or permit its actuation, said locking member being controlled in such movements by said feedrack, and an adjustable contact member carried by said locking member and which cooperates with said part of the line spacing mechanism.

18. In a typewriting and like machine, the combination of a carriage, escapement mechanism therefor, means for freeing the carriage from control of said escapement mechanism, line spacing mechanism including a bifurcated actuating member, a locking member carried by the carriage, an adjustable contact member carried by said locking member and received between the arms of the bifurcated actuating member and affording an operation of the line spacing mechanism when the carriage is under control of its escapement mechanism, and automatically operating means controlled by the release of the carriage from control of its escapement mechanism for shifting said locking member and bringing the adjustable contact thereon into the path. of one of the arms of said bifurcated actuating member thus locking the line spacing mechanism against operation.

ELBERT S. DODGE.

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