US2182125A

US2182125A - Typewriting machine

Info

Publication number: US2182125A
Application number: US86707A
Authority: US
Inventors: William F Helmond
Original assignee: Underwood Elliott Fisher Co
Current assignee: Underwood Elliott Fisher Co
Priority date: 1932-02-12
Filing date: 1936-06-23
Publication date: 1939-12-05
Anticipated expiration: 1956-12-05

Description

Dec. 5, 1939. w. F. HELMOND TYPEWRITING MACHINE Original Filed Feb. 12, 1932 2 Sheets-Sheet l Dec. 5, 1939. w. F. HELMOND TYPEWRITING MACHINE Original Filed Feb. 12, 1932 2 Sheets-Sheet 2 wdE Patented Dec. 5, 1939 r 2,182,125

1 UNITED STATES PATENT OFFICE TYPEWRITING MACHINE William F. Helmond, West Hartford, Conn., as-

signor to Underwood Elliott Fisher Company, New York, N. Y., a corporation of Delaware Original application February 12, 1932, Serial No. 592,454. Divided and this application June 23, 1936, Serial No. 86,707

14 Claims. (01. 197-179) This invention relates mainly to key-set tabutopermit endwise adjustment of the latter. Each lator-stop mechanism for typewriting machines. tongue is joined to its arm by a reflex bend, which There is used a rack with a key-set stop which is serves to cover over the open end of the tube, in the form of a square or rectangular metal and also carries a screw, which bears against the 6 tube, having cross-slots for the stops cut in its end of the rack, for eflecting fine endwise adtop and bottom sides; each key-settable columnjustment of the latter. Said tongue is fastened stop being insertible down through the top and to the front side of the rack, thus avoiding any bottom slots; and a spring-detent being formed tendency of the arrested carriage to give the rack upon the front edge of each stop. a thrust in an up or down direction, or to raise 1 The rack is mounted upon the rear of the or lower the carriage at either end, or to bind 10 paper-carriage of the typewriter, and its path of the carriage. travel overlies a set of decimal-stops. These Each key-set stop is provided with a top ear, decimal-stops are in the form of upstanding which overhangs the rear side of the rack, and blades, each having a key, whereby the stop may serves as a stop to prevent excessive downward be thrust up into the path of a key-set columnmovement of the stop, and to prevent any stop is stop. from being thrust bodily into the tubular rack.

Said decimal-stops are mounted in a bracket These ears overhang the rear side of the rack; which stands in rear of the carriage-escapement and the integral detents are formed upon the mechanism of the typewriter; and in order to front edges of the stops.

afford accessibility to the carriage-escapement Alongside of the set of decimal-stops there is 20 mechanism, for inspection, adjustment and replaced an additional blade, which may perform pair, it is a feature of the invention that the the function of a stop-blade, but which is also bracket and the set of decimal-stops are made formed with a cam-shoulder. During the return detachable, together with the key-controlled of the carriage, this shoulder is struck by any mechanism which is used for setting the columnkey-set stop that is in depressed position. The 25 stops; a principal portion of said setting mechastop rides up on the cam, and is thereby restored nism being mounted upon said detachable brackto normal idle position. This cam-blade may be et, and forming a unit therewith, and extending operated by a stop-returning key at the end of up from the bracket in rear of the key-set stopthe row of decimal-keys at the keyboard. Upon rack, with the stop-setting arm projecting over the other side of the set of decimal-stop blades, 30 the top of said rack. When the lower end of there may be provided another extra blade, to the bracket is detached from the base of the mabe operated by another key, and constituting a chine-frame, said bracket may be lifted back and part of the stop-settin ec a smoif from the machine, together with its decimal- In operating key-set tabulator-mechanism,

stops and its key-controlled stop-setting mechathere is liability that, after the operation of the 35 nism, thus affording access to the carriage-feedtope t ke a d w ile s d y s st ll held ing mechanism. down, the paper-carriage may become released The stop-setting mechanism is entirely clear of by t a tuati n f any s ap m nt-a tuatin the carriage, and therefore the same unit may key, and may be propelled by its spring until it is 0 be used with carriages and racks of all lengths. arrested by striking the stop-setting tooth. This This mounting of the stop-setting mechanism is liable to bend the tooth, or to bend a stop, or is further advantageous in that it is clear of the to bend the stop-setting arm and bind the stoparms which support the stop-rack upon the carsetting mechanism, or otherwise to injure the riage, including not only the arms at the ends of mechanism, SO th ts parts will not become the rack, but also a third arm which is provided est ed to nor position. 45 to connect the midway portion of a long rack It is a feature of the present improvements to with the carriage, to afford adequate rack-supp de means for preventing Such accidents. d port. to this end the stop-setting tooth is mounted Each of the two arms, which extend rearwardpon a p c c which s pa e of l ed ly from the carriage, is fixed to the ends of the bodily yielding movement in the direction of 50 tubular rack for supporting the same. Each the carriage-t s th p narm has a tongue which is inserted within the carrier may be in the form of a lever, which is end of the rack, and issecured thereto by a screw. Pulled down by th Stop-Setting y, The shank of the screw passes through a slot ing the tooth on the end of the lever to forcea which extends longitudinally of the rack, so as stop to de e If new the a age Should be as released by operating an escapement-actuating key, a stop would engage said setting-tooth, and would force both the tooth and the lever to slide endwise, or in the direction of the carriagetravel, without eflecting any damage. The lever is thereafter-drawn back to its normal position by means of a spring, when the stop-setting key is released.

This application is a division of my pending application Serial No. 592,454, filed February 12, 1932 (now Patent No. 2,053,079, dated September 1, 1936).

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a perspective front view of the tabulator-stop setting. and restoring mechanism, in normal position.

Figure 2 is a sectional elevation, showing the position of the parts when the carriage is letterspaced while the stop-setting finger is held depressed.

Figure 3 is a sectional side elevation, showing the restoring slide and block.

Figure 4 is a perspective view of the parts shown in Figure 3 before being assembled.

Figure 5 is an enlarged plan, showing the stopsetting arm and mounting, together with the retaining spring.

Figure 6 is a sectional elevation, taken from front to rear, of the stop setting and restoring mechanism, and showing the stop-setting mechanism in operated position.

Fi ure '7 is a view similar to Figure 6, with parts omitted, and showing the stop-restoring mechanism in operative position.

Figure 8 is a sectional side elevation, taken about centrally of the machine, with parts omitted, and showing the present invention in no mal position.

The depression of keys l0 causes types II to strike rearwardly against a revoluble platen l2 supported for case-shift movement in the platenframe l3 that has a carriage l4 supported for letter-feed movement on a front rail i5 and a rear rail IS.

The carriage is pulled in letter-feeding direction by means of the usual spring band i1 and is fed at letter-space intervals, by operation of the keys in or space-bar Illa, through the usual escapement-mechanism that includes a loose dog l8 and a fixed dog Ida meshing with an escapement-wheel l9 carrying a pinion l9a engaging a carriage-letter-space rack 20.

Fixed at l9b to the ends of the carriage-frame i4 are brackets 2| which support a rack 22. This rack is made of a rectangular tube having open ends in which flanges 23 forming the outer ends of the brackets 2| are inserted and are fastened to the front or inner side 24 of the rack by means of screws and washers 25. The flanges 23 and the rear portion of the brackets are about the same length as the distance between the top and the bottom sides of the rack, so that the flanges just fit into the ends of the rack while the brackets 2| adjacent their flanges extend rea'r wardly and are bent at 26 to form vertical plates 21', which act as cover or end plates to conceal the open ends of the tubular rack 22.

The rack 22 is made of different lengths to flt various size carriages and according to its length may be supported by one or more intermediate brackets 28 fixed by screws 29 to the carriage frame l4, and having flanges 30 at its outer end or restoring said stops.

to which the rack 22 is rigidly attached by screws 3|.

The tubular rackis of oblong rectangular cross-section and includes inner side 24 and opposite outer side 32, the top 33 and bottom 34. The top and bottom sides have thin slots 35, 36 cut therein at letter-space intervals. The slots 36 are directly in a line with the slots 36, so as to receive the column-stops 31 in the form of thin rectangular blades loo ely fitting in said slots for an easy up-and-do movement when setting The width of the stops 31 is substantially the same as the width of the inner face of the front and the rear sides 24 and 32 of the rack 22, so that these sides will act as guides for the stops during their up-anddown movements and will also prevent any excessive forward or rearward play of the stops in the rack 22.

Each stop 3'! has a spring detent 39 formed by cutting a slit 39 near one side of the stop 31. The detent lies normally slightly to the front of the stop and has a pair of notches 40, 4| to enable the detent to cooperate with the edge of the upper slots 35 for holding the stops in their inefiective or effective positions.

The upward movement of a stop 31 is limited by the straight horizontal edge 42 forming the lower part of the notch 4| and catching on the inner face of its upper slot 35 in the rack 22. The downward movement of a stop 3'! is limited by a rearward extension 43 at the top of the stop 31. This extension overlies the rear side 32 of the rack, so that the depression of a stop 31 causes the lower edge of extension 43 to engage the top edge of the racks-rear side 32. The stops, therefore, if inadvertently given a quick heavy blow, are positively prevented from being depressed too far and from being thrust out of their upper slots 35.

The stops 3'! when in projected or set position cooperate with a decimal-stop-selecting mechanism that includes tabulating keys 44 forming the top row in the keyboard. The depression of any one of these keys releases the carriage in any known manner (not shown) and raises its respective plunger 45 into the path of a projected stop '31 to arrest the released carriage in the selected position. The plungers 45 are guided in upper plates 46, 41 and in a lower wall 48 forming part of a frame 49 having a rear wall 50 and side walls 5! and 52. The frame is detachably mounted by four screws 53 on the rear plate of the machine-frame 54 and directly in the rear of the escapement-mechanism.

To selectively set the stops 31 from the front of the machine, a novel stop-setting mechanism is provided, and includes a key 55, positioned adJacent and at the right side of the tabulator-keys 44. The stop-setting key is fixed to the front end of a key-lever 56 pivotally supported on a shaft 51 carried by escapement-base plate 56 fixed to the machine-frame 54. The key-lever. 66 is guided at its forward end in a slot in the upper portion of the usual key-lever comb-plate 59 and its rear end is guided in a slot in the wall 49 of the frame 49.

On top of the rear portion .of the key-lever 56 rests the lower end of a vertical link 69. This link is mounted inside of the frame 49 and at the right side thereof. The lower end of said link is guided in the same slot in the wall 49 as the rear part of the key-lever 56. The upper end of said link extends to the rear at 6| and is bent over at right angles to form fiange 62 to pivotally I connect the link by means of a screw 68 to one end of a lever 64 lying in rear and out of the path of the plungers 45 and swingably mounted by screw 65 on the rear wall 58 of the frame 48. The other end of the lever 64 is connected by a link 61 to a stop-setting arm 86 supported on the outside of the frame 49 at the rear and above the rack 22. The link 61 is pivotally connected at 68 to one end of the lever 64 and extends upwardly in rear of the rack 22 through a slot 69 in the plate 41 to be loosely connected at 16 to the outer end of the arm 86 which is rockable about a pivotstud 1| carried by a vertical post 12 riveted on the right side of the plate 41 to form a vertical extension of the frame 49 in rear of the rack 22.

The post 12 has a slot 18 cut in its upper end through which the stud 1| extends. The end of the arm 66 fits into the slot 13 constraining all movement of said arm in a single plane and is pivotally mounted on the post by means of an open end slot 14 in the arm 68 straddling the stud 1|. The other end of the arm 86 is bent over at right angles to form a tabulator-stop setting finger 15 normally overlying the stops 31 where it is supported by the link 61 and its fulcrum-pin 1|.

When a tabulator-stop 31 is to be set, the carriage is positioned to the desired printing point which places a corresponding stop 31 under the setting finger 15. The stop-setting key 55 is then depressed to rock its key-lever 56 which raises the link 60 and rocks the lever 64 to pull the link 61 downwardly, and thereby swings the arm 66 downwardly about its pivot 1| to cause the finger 15 to move in a stop setting path transverse to the row of stops 31 to engage and depress the underlying tabulator-stop 81. This stop 31 will be held in its depressed position by its spring detent 38, while, upon releasing the stop-setting key 55, a returning spring 16, connected at one end to a fixed plate 11 of the frame 49 and its other end to an ear 18 of the link 60, will return all the operated

parts

15, 66, 61, 64, 60, 56 and 55 of the stop-setting mechanism to their normal positions. The carriage may be then fed in letter-space direction to a position where it is desired to set another tabulator-stop. The stop corresponding to the position of the carriage will be under the setting finger 15 and upon depression of the stop-setting key 55 the finger will be pulled down to set said stop. The operation of positioning the carriage and setting the stops may be repeated until all of the desired tabulator-stops are in their effective or. set positions.

To restore any one of the stops thus set, there is provided a restoring mechanism that includes a stop-restoring key 19 positioned adjacent and at the left side of the tabulator-keys 44 and fixed to the outer end of a key-lever 80 swingably mounted on the left side of the shaft 51 and guided at the front end in the comb-plate 59 and at the rear end in the wall 48. A stop-restoring slide 8| is mounted in and at the left side of the frame 49 and is guided for vertical movement at its upper and lower ends. The sides of the slide 8| at its top portion are beveled at 82, which bevels fit into opposite notches 83 in the top guide-plates 46 and 41 and in which the slide 8| is free to move up and down.

The lower end of the slide 8| is guided in the same slot in wall 48 of the frame 49 as the stopreleasing lever 80- and rests upon the rear end of said lever 89 to be loosely connected to the operating key 19.

To restore a set stop 81 the carriage is tabulated into position by depressing the extreme left or decimal-point key which releases the carriagerack from its escapement-mechanism and permits the band H to pull the carriage to the left. The depression of the decimal-point tabulatorkey also simultaneously raises the extreme left plunger 46 to engage a side of the set tabulatorstop that is to be restored. Although this plunger is located one space to the right of the restoring slide 8|, and therefore engages the set stop one letter-space to the right of the slide 8|, it will be noted that there occurs the usual extra space feeding of the carriage to the left after the decimal-tabulator key is released, thereby positioning the set stop over and slightly in rear of the restoring slide 8|. This extra feeding is due to the plunger disengaging the tabulator-stop in returning to normal position while the carriage-rack re-engages the escapement-mechanism, at which time the spring band |1 will feed the carriage one letter-space distance in taking up the free motion of the loose dog I 8.

The set stop is now in the proper position to be restored and the key 19 is depressed to rock its lever 80 and thrust the slide 8| upwardly to engage the set stop and raise the same to its restoring or ineffective position where it will be held by means'of its detent 38. A return spring 84, fixed at one end to the bracket 11 and at its other end to an ear 85 on the slide 8|, returns the operated stop-restoring

train

19, 80 and 8| to its normal position upon the release of the depressed stop-restoring key.

To assure the slide 8| engaging the set stop, said slide is provided at its upper end with an offset portion or extension 86 forming part of a block 81. This block is narrower than the slide 8| and fits between the guide-plates 46, 41. The block has a slot 88 cut upwardly from its lower side to receive the slide 8| which has a cutout 90 to form a pair of side fingers 9 I, between which the block 81 is set to prevent any possible rotation and to securely mount the block 81 on the slide 8|, which block and slide are rigidly fixed together by a rivet 89. It will be noted that since the tabulatlng plunger engages the side face of a set stop, the extra space movement upon release of said plunger brings the stop just at the right side of the slide 8| but directly over the extension 86 which will engage and restore the stop by depression of the key 19 raising the slide 8|.

When it is desired to restore all of the depressed stops, the carriage is first fed to the left to bring all of the stops to the left of the restoring slide 8| The operator then depresses the restoring key 19 and holds it depressed to retain the slide 8| together with the block 81 in raised position while the carriage is suitably returned. This return movement of the carriage causes all of the depressed stops to pass over the block 81 and thereby be returned to their normal ineffective positions. This is accomplished by inclining the top portion of the block 81 at the left side of the slide 8|. This inclined portion forms a cam 92 on the block 81 that is engaged by all of the set stops during the return movement of the carriage, and as a stop rides up on the cam it is forced upwardly to ineffective position in its carrying rack 22 when its detent 38 will be effective to hold the stop in its restored position.

The stop-setting key 55 is depressed to swing 75 the finger "down in a stop setting path transverse to the row of stops about its fulcrum II, to depress the underlying stop 81. It sometimes occurs that while the finger I5 is in its lowered 5 position, a space-key or any other carriagefeeding key might inadvertently be operated, thereby causing the carriage to escape and bring the top portion of the adjacent unset stop against a setting finger I5. Heretofore such a feeding movement of the carriage would jam the adjacent stop against the setting member and under the strong tension of the carriage-feeding spring II the setting member would be prevented from returning from normal position after its operating key had been released, and the carriage would be jammed until the operator moved it in the opposite direction to move the stop away from the setting member and permit said member to return to its normal position.

30 According to the present invention, the above trouble is eliminated by slidably or extensibly mounting the stop-setting finger on its support. If the carriage is fed while the finger I5 is held depressed, the adjacent stop will abut against the finger, but, since the latter, together with its arm 66, is slidably mounted on the fulcrum through the slot I4, the finger will merely move along with the carriage for the letter-space distance. If the operator now lets go of the stopsetting key 55, the finger will be released from the adjacent stop in the usual manner, namely, through the spring I6 restoring the operated stop-setting train to normal position. The slot 69 through which the link 61 extends is made long enough to permit said link to swing forwardly together with the arm 66 when the carriage is fed while the finger I5 is held depressed. According to the present construction, the pull of the carriage-spring drum on the stop which is contacting with the depressed finger 15 (Figure 2) actually aids in returning said finger to its normal position, since the finger is swingably mounted around the pin II and said pin is positioned above the stops 31 so that when said finger returns to normal position, it is swung upwardly and forwardly away from the stop 31, in which direction the stop tends to push the finger I5.

A spring 93 then pulls the finger I5 and arm 66 back to normal position where the fulcrum pin II will be at the inner or closed end of the slot 14 in the arm 66. This spring 93 is mounted at one end on an extension of the fulcrum-pin (Figure 5) .that is rigidly carried by the post 12. The pin has a groove 94 to permit the end of the spring 93 to fit therein and prevent the possibility of the spring slipping off of the pin. The other end of the spring is secured to a pin 95 rigidly mounted on the arm 68. This pin 95 is utilized for loosely connecting the link 61 to the arm 66. The pin extends through a hole in the link 61, and said link is retained on said pin by means of the spring 93 fitting in a groove 96 in 65 the pin 95, thereby preventing the spring 93 or the link 61 from slipping off of the pin 95. In this manner the spring 93 acts to return the arm 66 and finger I5 to normal position when they are inadvertently pulled to the left and 70 also to retain the connection between the link 61 and the arm 66.

To prevent the arm 66 from being accidentally disconnected from its fucrum-stud II, the slot 69 in the plate 41 is shorter than the slot I4 in 75 the arm 66, so that the movement of the arm in letter-feeding direction is limited by the link 61 abutting the end of its slot 89.

The stop setting and restoring mechanisms with the exception of the key-levers 58 and 80 are entirely mounted in the rear frame 49. When 5 it is desired to gain access to the inside of the machine from the rear, such as for adjusting or otherwise fixing the escapement-mechanism, the four screws 53 are removed to permit the frame 49 together with the present stop setting and 10 restoring mechanisms to be entirely removed from the machine. The parts are held in proper position within the frame 49 by a rod 91 threaded through slots 98 in the link 60 and slide 8|, which rod also acts at all times to hold all of 15 the parts within the frame in their aligned normal positions. The slots 98 are of suflicient length to permit the desired vertical movement of their respective parts when operated by their respective key-levers. 20

The stop-setting finger I5, the stop-restoring slide 8|, 86 and an intermediate stop 31 are all in an aligned vertical position. This is advantageous as it often occurs that an operator sets a stop and then notices that the carriage is not 25 in the proper position and the stop should not have been set. With the construction of the present invention it is a simple matter to rectify this mistake by merely operating the stop-restoring key to operate the restoring slide and 30 reset the stop having just been set by the setting finger. The operator may now space the carriage to the proper position and operate the stop-setting finger to set the correct stop.

The present stop setting and restoring mech- 35 anisms being entirely separate and in the rear of the machine and out of the path of the carriage permit the latter to be readily removed from the machine which is often desired for shipping or repair purposes. 40

The upward movement of the keys and I9 is limited by a plate 99 fixed by screws I00 to the frame 49 and underlying the rear ends of the

levers

56 and 80.

The rack 22 carrying the stops 31 is adjust- 45 ably mounted lengthwise on the carriage I4, to align the stops 31 in proper position with respect to the tabulator-plungers 45, the stopsetting finger 15 and the stop-restoring slide 8|, 86, by providing slots IOI near the ends of the 50 rack 22, and through which the screws 25 extend into the flanges 23 of the brackets 2|. The center bracket 28 has slots I02 through which the screws 29 extend, so that by loosening the screws 25, 29, the rack 22 may be given a fine endwise adjustment by means of an adjustment screw I03 mounted in the plate 21 of the bracket 2|. After the desired adjustment has been made, the rack is rigidly attached to the carriage I4 by tightening the screws 25 and 29 while the adjustment screw is locked in position on the plate 21 by a locking nut I04.

Variations 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 claim:

1. In a typewriting machine of the class described, having a frame, the combination with a paper-carriage traveling in said frame, and a series of individually settable and restorable stops carried by said carriage and overhanging the rear side of said frame, of a series of tabulating keylevers of the first order extending from front to rear of said frame and substantially below said carriage, and a self-contained structure detachably supported on the rear of said frame, forming complete co-operative connections between said stops and the key-levers below, said structure including a nest of decimal-stops, a vertical link operatively connected at its lower end to one 01. said key-levers, a movable member having a finger, said finger overlying the carriage-stops to individually engage and by movement of said member to depress any stop on said carriage, said movable member being arranged to otherwise clear said carriage and stops, operating connections between said movable member and said vertical link, and a vertical slide connected at its lower end to another one of said key-levers and projectable upwardly by said key-lever to engage and restore a set stop on said carriage.

2. In a tabulating mechanism of the class described, the combination with a traveling carriage and a series of stops individually settable, of a stop-setting member including a lever, movable to set said stops, extending substantially parallel to and outside the path of travel of said stops, said lever including a transverse finger overlying said stops and formed to engage said stops individually and move therebetween, and a mounting for said lever, said lever and mounting having a pin-and-slot connection serving as a lever-fulcrum, said mounting also including resilient means to keep said pin and one end of the slot normally in abutment, said slot extending in the direction of carriage travel to thereby permit endwise movement of said lever to prevent interlocking of said finger and carriage by inadvertent release and movement of the carriage during actuation of said lever.

3. In combination, a carriage, a stop-setter and a stop-restorer opposed to each other in the same plane to act in opposite directions directly upon a key-set stop, first for setting the stop and then for restoring the stop without affecting adjacent key-set stops while the carriage remains motionless, and means for maintaining said stoprestorer in operative position for camming all of the set stops back to normal positions at a run of the carriage, said stop-restorer having a stoprestoring cam effective during said carriage run, said cam being arranged to avoid restoring said adjacent stops when the stop-restorer is actuated while the carriage is motionless.

4. In a tabulating mechanism, the combination with a letter-feeding carriage and a series of individually-settable stops for said carriage, of a row of key-operated blades, all but one of said blades serving as a complement of denominational stops individually operable to engage a set carriage-stop, said one blade being at the end of said row and adjoining the denominational-stop blade of lowest denomination and serving while the carriage is stationary to engage and selectively restore any set stop that has been tabulated to said denominational-stop blade of lowest denomination, and a key for operating said restorer to restore any presented stop, without moving the carriage, said restorer-blade having at its stop-engaging end a cam effective, when said restorer-bladeis in actuated position, to cam and thereby also restore the set stops by a run of the carriage when more than one stop is to be restored.

5. In a tabulating mechanism, the combination with a letter-feeding carriage, a series of individually-settable carriage stops, and key-operated means for setting said stops, of a pair of key-operated blades, one blade serving as a counterstop to engage any set carriage-stop,

the other blade serving as a restorer while the carriage is stationary, to selectively engage and restore any set stop on said carriage, said blades being mounted side by side, whereby the counterstop-blade locates the carriage by means of a set stop, and thereby causes said set stop to be presented individually to said restoring blade, to be restored individually thereby without movement of the carriage, the stop-engaging ends of said blades working in guiding means disposed close to the path of the carriage-arresting ends of the set stops, the restoring blade, like the counterstop-blade, being normally retracted so that its stop-engaging end is drawn sufficiently into said guiding means to clear said stop path.

6. In a tabulating mechanism, the combination with a letter-feeding carriage, a series of individually-settable carriage-stops, and key-operated means for setting said stops, of a pair of key-operated blades, one blade serving as a counterstop to engage any set carriage-stop, the other blade serving as a restorer while the carriage is stationary to selectively engage and restore any set stop on said carriage, said blades being mounted side by side, whereby the counterstop blade locates the carriage by means of a set stop, and thereby causes said set stop to be presented individually to said restoring blade, to be restored individually thereby without movement of the carriage, the stop-engaging ends of said blades working in guiding means disposed close to the path of the carriage-arresting ends of the set stops, the restoring blade, like the counter-stop blade, being normally retracted so that its stop-engaging end is drawn sufliciently into said guiding means to clear said stop path, said restoring blade having at its stop-engaging end a cam effective when said restoring blade is in actuated position to cam and thereby also restore the set stops by a run of the carriage when more than one stop is to be restored, said cam and guiding means being arranged so that in the retracted position of the restoring blade its cam is retracted substantially within said guiding means.

7. In a carriage-tabulating mechanism employing a series of key-settable stops on the carriage; a stop-setting, stop-restoring, and counterstop organization including an upstanding housing under the path of said stops, three upstanding, movable and laterally distributed blades mounted within said housing and operatively connectible at their lower ends to key-levers, the middle or second blade being operable as a counterstop for said settable stops, and a stop-setting finger movably supported on said housing, and operating connections extending from said finger to the third blade within said housing, the first blade closely adjoining the counterstop-blade and effective while the carriage is stationary to engage and restore individually any set stop that has been tabulated to the counter-stop-blade.

8. A stop-restorer for moving a slidably mounted carriage-stop from operative position to inoperative position and which is mounted on the frame of a typewriter including a plunger block mounted for reciprocatory movement in a plane transverse to the path of movement of the carriage, said block having two stop-engaging surfaces, one surface being substantially transverse to the path of movement of the restorer and having a width less than that of a letterspace and the other surface being inclined both to the path of movement of the carriage and to the path of movement of the block.

9. A stop-restorer 'for moving a slidably mounted carriage-stop from operative position to inoperative position and which is mounted on the frame of a typewriter including a plunger block mounted for reciprocatory movement in a plane transverse to the path of movement of the carriage, said block having two stop-engaging surfaces, one surface being substantially transverse to the path of movement of the restorer and having a widthless than that of a letterspace and the other surface being inclined both to the path of movement of the carriage and to the path of movement of the block, the two surfaces being of such size and form that the transverse surface of the block moves one carriagestop only.

10. In combination, a stop-restorer for moving a slidably mounted carriage-stop from operative position to inoperative position and which is mounted on the frame of a typewriter, including a plunger block mounted for reciprocatory movement in a plane transverse to the path of movement of the carriage, said block having two stopengaging surfaces, one surface being substantially transverse to the path of movement of the restorer and having a width less than that of a letter-space and the other surface being inclined both to the path of movement of the carriage and to the path of movement of the block, and means for actuating the restorer.

11. In combination, a stop-restorer for moving a slidably mounted carriage-stop from operative position to inoperative position and which is mounted on the frame of a typewriter, including a plunger block mounted for reciprocatory movement in a plane transverse to the path of movement of the carriage, said block having two stopengaging surfaces, one surface being substantially transverse to the path of movement of the restorer and having a width less than that of a letter-space and the other surface being inclined both to the path of movement of the carriage and to the path of movement of the block, and key-actuated means for actuating the restorer.

12. A stop-restorer for moving a slidably mounted carriage-stop from operative position to inoperative position and which is mounted on the frame of a typewriter, including a plunger block mounted for reciprocatory movement in a aisaiae verse to the path of movement of the restorer,

and having a width less than that of a letterspace, whereby the block may move one carriagestop only to inoperative position, and the other surface being inclined both to the path of movement of the carriage and to the path of movement of the block, whereby a movement of'the carriage may restore a plurality of carriage-stops to inoperative position.

13. In a key-operated tabulating mechanism, the combination with a traveling carriage, a row of letter-spaced key-settable stops on said carriage and'anest of tabulating blades operatively mounted within a casing and underlying said row of stops, of a stop-setting device including an arm disposed alongside said row of stops and having a finger extending transversely therefrom to overlie one of said stops, a support on the tabulating-blade casing, presenting'a pivotal and endwise movable mounting for said arm, a spring yieldably retaining said am in normal position, a link articulated to said arm adjacent the free end thereof, and means actuating said link including one of said blades; whereby said finger may move along the path of carriage travel to thereby permit release of said finger to'normal position should same become engaged with the side of a stop.

14. In a key-operated tabulating mechanism, the combination with a traveling carriage and a row of upstanding key-settable stops on said carriage, of a nest of upstanding blades operatively mounted beneath said row of stops, a stop-setting device including an arm disposed alongside of said row of stops and having a finger extending transversely therefrom to overlie a stop, all but the two outermost said blades presenting a complement of counter-stops operable individually to engage a set carriage-stop, one of the outer blades serving to restore a set stop and underlying said finger, the other outer blade presenting an actuator for said stop-setting arm, said actuator including a lever articulated to the latter said outer blade and said arm.

WILLIAML F. HELMOND.