US727552A - Type-writer. - Google Patents

Type-writer. Download PDF

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US727552A
US727552A US7395501A US1901073955A US727552A US 727552 A US727552 A US 727552A US 7395501 A US7395501 A US 7395501A US 1901073955 A US1901073955 A US 1901073955A US 727552 A US727552 A US 727552A
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type
wheel
levers
key
arm
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US7395501A
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Charles J Paulson
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ALBERT J NOTHACKER
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ALBERT J NOTHACKER
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00Typewriters or selective printing mechanisms characterised by the mounting, arrangement, or disposition of the types or dies
    • B41J1/22Typewriters or selective printing mechanisms characterised by the mounting, arrangement, or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/32Typewriters or selective printing mechanisms characterised by the mounting, arrangement, or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers

Description

PATENTED MAY 5, 1903. 0. J. PAULSON. TYPE WRITER;

APPLICATION FILED AUG 31, 1901'.

8 3 5 haeuZdarney m; Nonms PETERS co. woroumq, msnmui-ml, o, m

m r m am Lb na m W m n 5 1w 3 T a h 0 10 MODEL.

No. 727,552. PATEN'TED'MAY 5, 19Q3. G. J. PAULSON. Y

TYPE WRITER.

APPLICATION FILED AUG. 31, 1901. no MODEL. 5 SHEETS-SHEET 2.

No. 727,552. PATBNTED MAY 5, 1903.

' G. J. PAULSON.

TYPE WRITER.

APPLIOATION FILED AUG. 31. 1901. ononnL. a SHEETS-SHEET a.

"Qtnesses:- Invent??? y 4 I C/uzrZes Jj amls'on, G9 a 3 /us uY-zzomzey m: "cams PETERS co mmmumm wAsmNGTcm. a z.

PATENTED MAY 5, 1903. c. J. PAULSON. TYPE WRITER.

APPLICATION FILED AUG. 31, 1901.

a SHEETS-SHEET 6.

I0 MODEL.

Witnesses? Inventor 0 3/6 5 29. Charles Jpaulson,

Patented May 5, 1903.

Trace.

PATENT CHARLES J. PAULSON, OF BROOKLYN, NEW YORK, ASSIGNOR TO ALBERT J. NOTI-IAOKER, OF NEW YORK, N. Y.

TYPE-WRITER.

SPECIFICATION forming part of Letters Patent N 0. 727,552, dated May 5, 1903.

Application filed August 31, 1901. Serial No. 73.955. (No model.)

To all whom it may concern.-

Be it known that I, GnAELEs J. PAULSON, a subject of the King of Sweden and Norway, residing in Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type- VVriters, of which the following is a specification.

This invention relates principally to that IQ class of writing-machines in which a type wheel or segmentis variably rotated by means of a set of keys which also control a typehammer, and especially to machines in which atype-hammer is put under tension by means of the keys, and in certain respects is an improvement upon the invention made the subject-matter of my pending application, Serial No. 60,300, filed May 15, 1901.

The principal objects of the present in vention are to improve the construction and operation of the connections between the keys and the typewheel, to provide improved means for variably arresting the type-wheel, to reduce the noise of operation, and to improve the means for operating the type-hammer and the carriage-feeding mechanism.

My invention consists in certain combinations of devices, features of construction, and arrangements of parts, all as will be hereinafter fully set forth, and particularly pointed out in the concluding claims.

In the accompanyingdrawings, Figure l is a sectional elevation taken longitudinally of a type-writing machine constructed in accord- 5 ance with my presentimprovements. Fig. 2

is a fragmentary perspective view illustrating the operation of a yielding diagonal bar which actuates the type-wheel. Fig. 3 is a detail of the front end of an arm which is fixed upon the type-wheel shaft for variably arresting the type-wheel, the working edges of said arm being faced with leather or other sound-deadening material. Fig. 4 is a skeleton view similar to Fig. l, but showing a 5 type-keydepressed,thetype-wheel positioned, and the type-hammer in the act of printing. Fig. 5 is a fragmentary view illustrating a portion of a key-lever and a spring-pin for supporting the same, said pin being also adapted when depressed to intercept the said wheel-arresting arm. Fig. 6 is a sectional plan of the machine, taken just above the key-levers and showing the left-hand key-lever as operated and the arresting-arm in contact with the stop-pin belonging to said 1ever. Fig. 7 is a sectional front view of the machine, taken immediately in rear of the keyboard. Fig. 8 illustrates the preferred arrangement. of the keys. Figs. 9 to 12, inclusive, illustrate different positions of the type-wheel-driving mechanism, the position of the type-wheel being indicated by dotted lines.

In the several views similar parts are designated by similar numerals of reference.

Keys 1 are provided upon the forward ends of horizontal rearwardly-extending parallel levers 2, whose rear ends are pivoted at the back of the machine upon a transverse rod 3, supported by opposite lugs 4, said levers being pressed up against a slotted transverse stop-bar 5, arranged, preferably, just forward of the rod 3, by means of compression-springs 6, Fig. 5, which are coiled around pins 7, inserted in vertical perforations 8, provided in a slotted transverse bar 9, each of said pins being provided with a head 10, which affords a bearing for the upper end of the spring and directly engages the lower end of the key-lever. At its lower end each spring bears upon a base portion 11 of the enlarged upper portion of the perforation. The slots in the bar 9 guide the key-levers, and the pins 7 project below said bar when the key-levers are depressed. The key-levers are divided into right and left sets, and placed beneath each set is a diagonal bar 12, these bars diverging forwardly and being carried upon horizontal rock-arms 13, whose forward ends are loosely pivoted upon a transverse fulcrum-rod 14., which is mounted at its ends in standards 15 and also centrally supported by a lug 16. By using a tie-rod 17 a rigid frame or bail is produoed. The key-levers in each set may bear either directly upon the top edge of the diagonal bar 12 or (as preferred) upon the upper edge of a parallel bar 18, which is mounted upon said frame by means of fingers 19 and is held up bya spring 20, secured by a screw 21 to the inner rocker-arm 13, the purpose of said spring being to enable further downward movement of any key after-tho arrest of the type-Wheel, this'further downward movement assuring the proper sequential operation of the type-hammersubsequent to the final positioning of the type-wheel, as will be later explained. Vertical arms 22, provided with returning-springs 22, are erected upon the inner arms 13, and at their upper ends carry inwardly-turned forked members 23, adapted to engage a pair of short pins-24t, provided upon opposite sides of the hub portion of a rearwardly-extending horizontal radial arm 25, mounted upon a vertical shaft 26. Said shaft is journaled at its upper portion in a bracket 27 and at its lower portion in the lug 16, and said arm '25 carries at its rear end a vertical pin 28, which enters a perforation provided in a type-wheel 29. The hub of the wheel is provided with a sleeve 30, placed loosely over the upper end of the shaft 26, so as to permit vertical movement of the Wheel for bringing different lines of types into printing position. Owing to the diagonal arrangement of each bar 18 (or 12) it will be seen that the inner lever in each set engages said bar at a point which is comparatively near to the fulcrum of the key-lever and comparatively remote from the axis 14, whereon said bar rocks, so that at the depression of the inner key-lever but little movement is imparted thereby to said diagonal bar, and the latter hencemoves through a comparatively short are, so that there is effected onlya minimum swing of the vertical arm 22, and hence a minimum motion is communicated by the forked member upon said arm to the pin 24:, arm 25, and type-wheel. The outer key-lever in each set engages said diagonal bar at a point which is comparatively remote from the fulcrum of the key-lever and comparatively close to the fulcrum of the diagonalbar frame, so that'when such key-lever is depressed a material movement is com municated thereby to the diagonal bar and the latter is caused to swing through a'maximum arc, whereby through arm 22 and pin 2% a maximum oscillation is given to the typewneel, so that the outermost letter thereon is brought to printing position. The intervening levers impart different movements to the type wheel, according to their respective points of engagement with the diagonal bar, to the end that when any key-lever is depressed the type-wheel may move a sufficient distance to bring the corresponding type into printing position. The type-wheel normally stands in a central position and is swung to either one side or the other, accordingly as a key-lever in one set or the other is depressed. The diagonal-bar frames act independently of each other, either of said arms 22 being adapted to actuate the type-wheel while the other thereof remains stationary.

The type-wheel shaft is provided with a rigid gage-arm or arresting device 31, which extends horizontally forward from the lower portion of said shaft and is adapted to swing across the machine beneath the key-levers,

the central normal position of said gage-arm beingindicated by dotted lines at Fig. 6. The function of said gage-arm is to contact with the pins which are placed beneath the keylevers when depressed below the bar 9, the forward end of said gage-arm being preferably widened at 32 and swinging horizontally immediately beneath said bar 9, sothat at the operation of any key-lever the type-wheel is actuated accordingly and then arrested by the contact of said gage-arm with the pin which is depressed by the operated key-lever. The working portion 32 of the gage-arm is preferably parallel-sided, and the several pins 7 are so disposed as to secure approximately accurate positioningof the type-wheel in each instance. It will be observed at Fig. (3 that some of the pins are placed nearer than others to the axis upon which the gagearm swings and that the working portion is elongated, so that it may contact with all'of the pins. It will also be observed that said pins are disposed in irregular rows, since each pin is preferably placed centrally of the key-lever-guiding slot,while the several pins are arranged at substantially equal angular intervals. It will be seen at Fig. 3 that the working edges or faces of the gage-arm may be faced with rawhide or other non-resonant material 33, preferably secured by rivets 34 upon the lower face of said member 32 and protruding slightly beyond the edges thereof, and one or more. washers may be placed between the heads of the rivet-s and the under side of said rawhide. Owing to the graded or unequal distances of the pins 7 from the axis 26 of the gage-arm said rawhide contacts at numerous points with the several pins, so that the wear is distributed over a considerable area, and hence the life of the rawhide is greatly prolonged, while the noise of operation, which has heretofore been an objection to this class of machines, is practically eliminated. Owing to the comparatively great distance of the member 32 from the type-Wheel axis 26 the slight variations in positioning of the wheel, due to indentations produced in the rawhide, will be insignificant, so that the machine may be depended upon to do excellent work for a great length of time.

A universal bar 35 extends transversely across beneath the key-levers just in rear of the wheel-operating frames and at its ends is bent forwardly at 36 to form a bail, said arms 36 being suitably pivoted upon screws 37. The universal bar is given approximately uniform movements by the several key-levers. Projecting rearwardly from said universal bar and about midway of its length is an arm 38, from which extends a draw-spring 39, which is caught in a perforation in an upright typehammer 40. This hammer is mounted upon pivot-screws 41, threaded into a bracket 42, and is normally prevented from yielding to the force of said spring 39 by means of a trigger or tripping member 43, which is disposed beneath the hub of said hammer and is pivkit oted in rear thereof at 44. It is also provided with alifting-sprin g 45, which normally holds the nose 46 of the trigger in engagement with a projection 47, provided upon the hammer beneath its axis. At the operation of any key-lever the arm 38 upon the universal bar puts the spring 39 under tension and also bears down upon a trigger-finger 48, so that at the time that the type-wheel is approximately positioned and the spring 39 is distended the nose 46 releases the type-hammer, which is caused by the spring 39 to snap forward and force the paper against the type. Upon the release of the key from pressure the key-lever is returned by the spring 6, the type-wheel and diagonal-bar frame are returned by the spring 22 and the universal bar is returned by a spring 49, (shown at the right of Fig. 6,) while the type-hammer is re turned by said universal-bar arm 38, whose rear end engages an arm 50, extending forwardly of said type-hammer over said arm 38, and the spring forces the trigger 43 back into position to detain the hammer in normal position. It will be seen that there is a direct train of connections from the key-levers to the type-hammer and that the parts are simple and compactly arranged, which is a desideratum in this class of machines.

The paper is carried upon a carriage, which is generally designated as 51 at Figs. 1 and 7, said carriage being operable in the usual manner by a spring-barrel 52 (shown in dotted outline in Fig. 6) and provided with a feed-rack 53, which slides facewise upon a bed 53 and is controlled by means of a feeding-dog 54, normally engaged with the rack, and a detentdog 55, which stands normally above the rack and is carried upon the upper end of a vertical slide 56. Said slide has a rearwardlydirected lug which is engaged by the bottom edge of the universal bar 35, so as to be depressed thereby, whereupon said dog 55 becomes engaged with the rack, and the dog 54, which is pivoted upon slide 56, is drawn down beneath the rack and caused by a diagonal spring 58 to move toa position opposite the next notch. The lower end of slide 56 extends at 59 through a perforation formed in the base and rests upon a returning-spring 60, secured to the under side of the base at 61, the upper end of said slide 56 being suitably guided in a slot at 62.

Referring now more particularly to Figs. 9 to 12, it will be seen that when the parts are in the Fig. 10 or normal position either of the forked members 2-3 may actuate its wheel-shaft pin 24 and that the opposite pin 24 may move freely out of its operatingfork. At Fig. 9 the lefthand fork 23 is shown in full lines in normal position, while the wheel is shown swung to the left by the right-hand fork a3, and it will be observed that if at this time any key in the left-hand set should accidentally be depressed the lefthand fork 23 would be swung to the dottedline position and the curved guard edge 63 edge of the fork, as indicated in dotted lines.

At Fig. 12 the wheel is shown as swung around to the extreme left, so that pin 24 cannot arrest the left-hand fork member 23, but that the latter if accidentally operated will be arrested by contact with the edge of the type-wheel arm 25, as indicated by dotted lines. It will be understood that in case the type-wheel is vibrated in the opposite direction from normal position the keys at the right-hand side of the keyboard are likewise prevented from accidental operation. The type-wheel rests upon a'plate 64, which is perforated so as to fit loosely over the shaft 26 and which is also bent upwardly and then rearwardly at 65 and carries a keeper 66, which catches over the type-wheel hub and is provided with a thumb-screw 67, so that by loosening said screw thekeeper maybe swung to one side and the type-wheel released. Said plate 64 is rigidly attached to a vertical rod 68, whose lower end is provided with a collar 69, which is adapted to be engaged by the ends of shift-levers and 71, which ma-ylift the rod, the plate, and the type-wheel. Stops 72 and 73 limit the movements of said levers, so that one may lift the type-wheel higher than the other, whereby either capitals or figures may be brought into printing position, A returning-spring for the type-wheel shift device is indicated at 74, and each of said shift levers may also be provided with a spring, as at 75 and 76, Figs. 1 and 6.

In the present form of my invention it will be observed that the diagonal bars 18 extend transversely of the right and left sets of keylevers, each of said bars being operable by any lever in its set; that the diagonal bars are carried by rocking devices consisting in this instance of the frames 12 13; that said diagonal bars diverge forwardly from the middle longitudinal line of the machine and are disposed in rear of the type-wheel shaft26; that the arms 22 are substantially rigid with the diagonal bars 18 during the operation of positioning the type-wheel and may then be given a further movement independently of said bars; that the key-wheel shaft has a device which may be operated by either of said arms independently of the other; that the arms 22, being rigid with the rocking devices 12 13, may be regarded as mounted therewith concentrically of the shafts 14; that the diagonal bars intervene between the type-wheel and the key-levers; that yielding means are provided for supporting the diagonal bars,

; &

type-wheel, so that after the positioning of the latter the support 20 for the bar may yield and permit full depression of the key; that independent connections are provided from the two diagonal-bar frames to the type-wheel, so that the latter may be operated by either frame; that the arms 22 are arranged one at each side of the type-wheel shaft; that said shaft is disposedvertioally between thetwo sets of key-levers; that the arms 22 have forked members for engaging pins 24, carried upon the hub portion of the type-wheel-driving arm 25, said pins being parallel with the type-wheel shaft. It will also be observed. in this instance that the gage-arm or arresting member 31 is preferably fixed directly upon the type-wheel shaft; that said arm is provided with prolonged Working surfaces, preferably faced with non-resonant material, each of said facings being adapted to engage at numerous "points along its surface with the gage-pins 7,

bar 9 is bow-shaped; that the arresting device 32 is preferably double-faced with nonresonant material; that the gage-arm iselongated-that is, materially longer than the 'radius of the type-wheelso that irregularities in the positioning of the gage-arm may not produce substantial unevenness in the spacing of the printed letters. It will be noted also in this instance that the typehammer has a yielding connection with the universal bar 35, so that when the latter is operated at the depression of a key it puts the type-hammer under tension; that the tripping device or 'trigger'43 prevents the hammer from moving under such tension;

that said tripping device is caused by the universal bar to release the hammer at the last portion of the key-stroke, preferably after the arrest of the type-wheel; that the hammer is fulcrumed at its lower end and extends upwardly; that the universal bar extends transversely beneath rear portions of the key-levers; that an arm is provided upon the universal bar for resetting the hammer upon the upward movement of the bar, and

that an arm projects from the universal bar for releasing the trigger. I

It is not essential that the bars 18 be always yieldingly supported, as obviously each of them may be formed rigidly or in one piece with its associated frame or with its operat ing-arm 22, or, if desired, said bars 18 may be omitted and the key-levers may bear directly upon the diagonal bars 12, in which case the type-hammer may be tripped at the last portion of the movement of the key and approximately at the time that the wheel is arrested by the contact of the arm 31 with the depressed gage-pin. Again, it is not always essential that the elongated gage be a swinging device or that it be always mounted concentrically with the type-wheel or extend forwardly from the type-wheel shaft.

Many other changes may be resorted to within the scope of my invention, and portions of myimprovements may be used without others.

Having described my invention, I claim 1. In a type-writing machine, the combination of a series of key-levers extending rearwardly and fulcrumed at their rear ends; a slotted guide for the forward ends of said keylevers; a series of pins mounted in perforations in said slotted guide; and a series of springs for pressing said pins up against said key-levers.

2. In a type-writing machine, the combination of a series of key-levers extending rearwardly and fulcrumed at their rear ends; a slotted guide for the forward ends of said keylevers; a. series of pins mounted in perforations in said slotted guide; and a series of springs for pressing said pins up against said key-levers, said springs bearing at their upper ends against heads formed on said pins, and at their lower ends engaging the bases of enlarged portions of said perforations.

3. In a type-Writing machine, the combination of a system of key-levers, divided into two sets; a diagonal bar extending transversely of each set of key-levers; an arm rigid with each diagonal bar; rocking devices each comprising one ofsaid arms; an actuator-arm; a type-Wheel with which said actuator-arm is detachably engaged; and means connecting the actuator-arm to each of the arms rigid with its respective diagonal bar.

4. In a type-writing machine, the combination of a system of substantially parallel keylevers divided into right and left sets; a pair of diagonal bars placed beneath the key-levers, said bars diverging forwardly and beipg suitably fulcrumed; arms moving with said diagonal bars; and a key-wheel shaft having a device comprising an actuator-arm rigid with the shaft and operatively connected with the arms moving with the diagonal bars.

7 5. In a type-writing machine, the combinationwith a system of rearwardly-extending key-levers fulcrumed at their rear ends, of two diagonal bars arranged beneath the levers and diverging forwardly; pivoted devices upon which said diagonal bars are carried; upright arms mounted upon said pivoted devices; a type-wheel shaft; an actuator-arm extending therefrom and detachably engaged with the type-wheel and having means which may be engaged by the upper ends of said upright arms, whereby said typewheel may be rotated in opposite directions from a normal central position.

6. I11 a type-writing machine, the combination of a series of key-levers; a type-wheel; a pair of diagonal bars intervening between the key-levers and the type-wheel; means for variably arresting said type-wheel; and yielding supporting means for said diagonal bars, whereby motion of such bars may be continued after the arrest of the type-wheel.

7. In a type-writing machine, the combination of a series of key-levers; a type-wheel; an intervening pair of diagonal bars; rockerarms whereon said diagonal bars are yieldingly supported; and means for variably arresting said type-wheel.

8. In a type-writing machine, the combination with a type-wheel, of a series of key-levers and an intervening diagonal bar adapted to be operated by the key-levers and having a yielding support which is operatively connected to the type-wheel.

9. In a type-writing machine, the combination with a system of key-levers fulcrumed at their rear ends, of a pairof forwardly-diverg ing diagonal bars arranged beneath the keylevers, frames whereon said diagonal bars are yieldingly supported, and independent connections from said frames to a type-wheel.

10. In a type-writing machine, the combination with a series of key-levers fulcru med at their rear ends, of apair of forwardly-diverging diagonal bars arranged below the key-levers; frames whereon said diagonal bars are yieldingly supported; arms integral with said frames and arranged one at each side of the type-wheel shaft; and means for enabling either of said arms to rotate said type-wheel shaft independently of the other thereof.

11. In a type writing machine, a typewheel-actuating diagonal bar adapted to be operated by key-levers and mounted upon a pivoted frame which is provided with a spring, as 20 adapted to urge the bar in one direction relatively to said pivoted frame, whereby said bar is enabled to yield.

12. In a type-writing machine, the combination with a type-wheel and key-levers of a diagonal bar, as 18; a support therefor comprising rocker-arms 13, diagonal bar, 12, and a spring, 20; and connections from said support to the type-wheel.

13. In a type-writing machine, the combination with a system of rearwardly-extending key-levers fulcrumed at their rear ends, of a type-wheel; a pair'of diagonal bars disposed between said type-wheel and the rear ends of said levers; and connections from said diagonal bars to said type-wheel.

14. In a type-writing machine, the combination witha series of key-levers, a typewheel, and a shaft therefor, of a pair of diagonal bars disposed in the rear of said shaft and diverging from their rear to their front ends; arms rigid with said diagonal bars and rocking therewith and arranged at said typewheel shaft; and means for enabling said arms to directly actuate said shaft.

15. In a type-writing machine, the combination with rearwardly-extending levers, of a type-wheel; a vertical shaft 26 for said typewheel; resilientlysupported diagonal bars 18; an axis 14 whereon said bars 18 may rock; arms 22 arranged on each side of said typewheel shaft and rocking with said bars 18; and means for enabling said arms to engage devices carried by said type-wheel shaft.

16. In a type-writing machine, the combination of a system of horizontal parallel rearwardly extending key levers divided into right and left sets; a type-wheel; a shaft for said type-wheel arranged vertically between said sets; frames 12, 13 arranged beneath said key-levers and provided with tie-rods 17; diagonal bars 18 having fingers 19 whereby they are loosely supported upon said frames; springs 20 for said diagonal bars; arms 22 rigid with said frames and extending upwardly at each side of said type-wheel shaft; and means for enabling said arms to engage devices carried upon said shaft.

17. In a type-writing machine, the combination with a type-wheel and a shaft of an arm 25 thereon adapted to actuate said typewheel; pins 24 carried by a hub portion of said arm; rocker-arms disposed at each side of the type-wheel shaft and having forked members for engaging said pins; and diagonal bars substantially rigid with said rockerarms during the wheel-setting operation and controlled by key-levers.

18. In a type-writing machine, the combination with a type-wheel and operating-levers therefor pivoted at the rear of the machine, of a shaft whereon said wheel may turn; a gage-arm fixed upon said shaft and movable in aplane below said levers; and a system of independently-movable gage-pins for variably arresting said arm; said system being divided into two irregular sets and being arranged forwardly of said type-wheel shaft and below the said operating-levers; and said gage-arm having a prolonged working surface adapted to engage at numerous points with said pins.

19. In a type-writing machine, the combination with a type-wheel, of a plurality of opcrating-levers therefor pivoted at the rear of A the machine, a gage-arm movable in a plane below said lever and having a prolonged working portion, and gage-pins for variably arresting said arm; said pins being arranged below said operating-levers and at different distances from the axis of movement of said arm so that they may engage the same at numerous points along said working portion.

20. In a type-Writing machine, the combination with a type-wheel, of a plurality of operating-levers therefor pivoted at the rear of the machine, a gage-arm movable in a plane below said lever and having a prolonged parallel-sided working portion, and gage-pins for variably engaging said arm, said pins being arranged below said operating-levers and at different distances from the axis of movement of said arm, so that they may engage the same at difierentpoints along said working portion, and pins being divided into two sets, betweenwhich said gage-arm normally extends.

21. In a type-writing machine, the combination with a type-wheel, and a pivoted gagearm therefor, of a system of parallel key-levers below which said gage-arm works and which are pivoted at the rear of the machine,

and a pin caused to move by each key-lever into the path of said gage-arm, said pins be ing disposed below said key-levers at unequal distances from the axis of movement of said gage-arm, and the latter having a prolonged surface for engaging said pins at numerous points.

22. In a type-writing machine, the combination with a type-wheel, and a pivoted gagearm therefor, of a system of parallel key-levers below which said gage-arm works and which are pivoted at the rear of the machine; a pin caused to move by each key-lever into the path of said gagearm, said pins being disposed below said key-levers at graduated distances from the axis of movement of said gage-arm, and the latter having aprolonged surface for engaging said pins; and springs for returning said pins and key-levers to gether to normal position.

28. In a type-writing machine, the combination of a set of types movable to different working positions, of a plurality of operat ing-levers therefor pivoted at the rear of the machine, a prolonged gage moving with said types, and two sets of stops for said gage, the latter being disposed below said operatinglevers normally between said sets of stops, and the stops being so disposed as to contact with said gage at numerous points along its working surfaces.

24. In a type-writing machine, the combination with a system of key-levers and a slotted guide-bar therefor; pins arranged with the guide-slots; springs for said pins; atypewheel having a swinging gage-arm disposed beneath said guide-bar, and into the path of which any of said pins may be projected by its key-lever; said pins being arranged at unequal distances from the axis of movement arm moving with said type-wheel and swinging below said guide-bar so as to be engaged by any pin; said key-levers and pins being divided into sets, and said gage-arm extending normally between the sets.

27. In a type-writing machine, the combination with a type-wheel, of a system of rearwardly-extending key-levers; aslotted guidebar for the forward ends of said levers; pins spring-supported in saidguide-bar; andagagearm moving with said type -wheel and arranged to be engaged by any pin, said keylevers and pins being divided into sets, said gage-arm extending normally between the sets, and said pins being disposed at unequal distances from the axis of movement of said gage-arm.

28. In a type-writing machine, the combination with a type-wheel and a series of operating-levers therefor, of a'series of guidingslots for said levers; a series of pins arranged at said slots and operable by said levers; a series of returning-springs; and a gage-arm cooperating with said type-wheel and said pins.

29. In a type-writing machine, the combination with a type-wheel, of a series of parallel key-levers; a bow-shaped bar having guide-slots for said key-levers; vertical perforat-ions in said bars; pins working in said perforations; springs for said pins; and a gage-arm moving with said type-wheel and swinging beneath said guide-bar.

30. In a type-writing machine, the combination with a type-wheel, of a plurality of operating-levers therefor pivoted at the rear of the machine, a gage-arm movable in a plane below the levers and having an elongated edge which is faced with non-resonant material, and a series of stops disposed below said operating-levers and coacting with said gagearm; said stops being disposed so as-to contact with said facing at numerous points along the edge thereof.

31. In a type-writing machine, the combination with a type-wheel, of a plurality of operating-levers therefor pivoted at the rear of the machine, an elongated arresting device coacting therewith, and a system of stops disposed below said operating-levers and divided into two sets between which said arresting device normally stands; the arresting devices in each set being disposed so as to contact with said arresting device at numerous points along the edge thereof, and said arresting device being doubly faced with non-resonant material.

32. In a type-writing machine, the combination with a type-wheel, of a system of keylevers divided into two sets and pivoted at the rear of the machine; a set of pins operated by each set of levers and disposed below said sets of key-levers; a gage-arm mounted concentrically with said type-wheel and movable in a plane below said key-levers and standing normally between said sets of pins; and a facing of non-resonant material provided upon the opposite sides or edges of said gage-arm; said pins being disposed at graduated distances from the type-wheel axis.

33. In a type-writing machine, the combination with a system of rearwardly-extending levers arranged in two sets and fulcrn med at their rear ends, of a type-wheel; diagonal bars placed beneath the key-levers in the rear of the type-wheel axis and diverging forwardly from their rear ends; a slotted guide-bar for the forward ends of said levers; vertical perforations formed in said bar at said slots; pins placed in said perforations; springs for causing said pins to bear up against said keylevers; and a gage-arm mounted concentrically with said type-wheel and extending forwardly beneath said guide-bar and having an elongated working surface.

34. In a type-writing machine, the combination with a type-wheel and a plurality of levers for actuating the same pivoted at the rear of the machine, of an elongated gagearm mounted concentrically with said typewheel and moving therewith; elongated working edges upon said gage-arm, said edges being faced with non-resonant material; and

. two sets of arrestingpins between which sets said gage-arm normally rests; said pins being disposed below said levers at unequal distances from the axis of said gage-arm.

35. In a type-writing machine, the combination with a type-wheel and a series of keys therefor, of means for variably arresting said type-wheel; a universal bar operable by any of the keys; a type-hammer; a spring extending from the hammer toward said universal bar and directly connected to one and operatively connecting with the other, so that when the bar is operated at the depression of a key, it puts the hammer under tension; and a tripping device for preventing the hammer from moving under such tension; said tripping device being caused by said universal bar to release the hammer at the last portion of the key-stroke, and after the arrestof the type-wheel.

36. In a type-writing machine, the combination with a type-wheel, and a series of keys connected thereto, of a universal bar depressible by any of the keys; a type-hammer; an actuating-spring connected to said hammer; a trigger for said type-hammer; and an arm projecting from said universal bar for releasing said trigger and to which said spring is connected, and which engages a forwardly-extending arm provided upon said hammer, for resetting the latter.

37. In a type-writing machine, the combination with a type system and a series of levers therefor, of a universal bar operable by any of said levers; a carriage-feeding mechanism controlled by said universal bar; a type-hammer; a spring extending from the hammer toward said universal bar, and directly connected to one and operativelyconnecting with the other, so that when the bar is operated at the depression of a key it puts the hammer under tension; and a trigger for said hammer; said trigger being caused by said universal bar to release the hammer at the last portion of the key-stroke.

38. In a type-writing machine, the combination with a type system of a series of rearwardly-extending key-levers fulcrumed at their rear ends and connected with said type system; a universal bar extending transversely beneath the key-levers; a type-hammer fulcrumed at its lower end and extending upwardly; aspring extending from the ham mer toward said universal bar and directly connected to one and operatively connecting with the other; an arm on said universal bar for setting said type-hammer; a trigger for supporting said type-hammer in normal position; means for enabling said universal bar to release said trigger; and a carriage-feeding mechanism controlled by said universal bar.

nation with a type system of a system of rearweirdly-extending levers fulcrumed at their rear ends; a universal bar operated by said levers; a type-hammer; an actuating-spring connected to said hammer; a trigger for said type-hammer; a fixed arm on said universal bar for enabling the latter to operate said trigger and subsequently to reset said typehammer; and a carriage-feeding mechanism controlled by said universal bar.

40. In a type-writing machine, the combination with a type-wheel and a system of rearwardly-extending levers for actuating said type-wheel, of a universal bar disposed transversely beneath the rear portions of said keylevers, and in rear of the type-wheel axis; a type-hammer pivoted below said key-levers and in rear of said universal bar; a spring connected to said type-hammer; a trigger adapted to be operated by said universal bar at the termination of the key-stroke; and means comprising a fixed arm extending from the universal bar and to which one end of said spring is attached for enabling said universal bar to reset said hammer.

41. In a type-writing machine, the combination with a type-wheel having a shaft, of pins 24: carried by said shaft and parallel therewith; and operating-arms arranged one at each side of the type-wheel shaft and having at their upper ends inwardly-bent forks 23 for engaging said pins, each of said forks having means whereby its accidental movement may be blocked while the other thereof is engaged in positioning the type-wheel.

42. In a type-writing machine, the combination with a type'whoel having a shaft, of pins 24 carried by said shaft and parallel therewith, and operating-arms arranged one at each side of the type-wheel shaft and having at their upper ends forwardly-bent forks 23 for engaging said pins, each of said forks being provided with a curved guarding edge 39. In a type-writing machine, the combi- 63, whereby accidental operation of one arm may be prevented while the other arm is engaged in positioning the type-wheel.

43. In a type-writing machine, the combination with a type-wheel standing normally in a central position, of an arm 25 mounted 'upon a type-wheel shaft and, actuating said type-wheel; pins 24 carried by the hub portion of said arm and disposed one at each side of said shaft; operating-arms arranged one at each side of said shaft and having at their upper ends inwardly-directed forked members 23 each having a curved guide portion (53, said parts so constructed and arranged that when the type-wheel is swung to the extreme right'or left hand portion of its movement by one of said operating-arms, accidental movement of the other thereof is prevented by its contact with said arm.

44. In a type-Writing machine, the combination of a series of key-levers; a type-wheel; a pair of diagonal bars intervening between the key-levers and the type-wheel; means for variably arresting said type-wheel; yielding supporting means forsaid diagonal bars; and

a type-ham mer released by the key-1e vers d u ring the yielding action of said supporting means.

45. In a type-Writing machine, the combination of a series ofkey-levers; atype-wheel; an intervening pair of diagonal bars; rockerarms whereon said diagonal bars are yieldingly supported; means for variably arresting said type-wheel; and a type-hammer released by said key-levers after the arrest of the type-wheel.

46. In a type-writing machine, the combination with a type-wheel, of a series of keylevers and an intervening diagonal bar adapted to be operated by the key-levers and having a yielding support which is operatively connected to the type-wheel; and a type-hammer controlled by the key-levers.

47. In a type-writing machine, the combination with asystem of key-levers fulcru med at their rear ends, of a pair of forwardly-diverging diagonal bars arranged beneath the key-levers; frames whereon said diagonal bars are yieldingly supported; independent connections from said frames to a type-wheel; and a type-hammer controlled by a universal bar extending across the key-levers and operable by all thereof.

48. In a type-writing machine, the combination with a system of rearwardly-extending key-levers fulcrumed at their rear ends, of

two diagonal bars arranged beneath the le vers and diverging forwardly; pivoted devices upon which said diagonal bars are carried; upright arms pivoted concentrically with said pivoted devices; a type-wheel shaft having means which may be engaged by the upper ends of said upright arms, whereby said shaft may be rotated in opposite directions from a normal central position; and a type-hammer controlled by all of said keylevers.

49. In a type-writing machine, the combination with a system of rearwardly-extending key-levers fulcrumed at their rear ends, of a type-wheel; a pair of diagonal bars disposed at the rear of said type-wheel and beneath said levers; connections from said diagonal bars to said type-wheel; a universal bar disposed in rear of said diagonal bars and operable by all of the key-levers; and a typehammer pivoted in rear ofsaid universal bar and controlled thereby.

50. In a type-writing machine, the combination with a type-wheel and a system of keylevers divided into two sets, of two diagonal bars, one for each set of levers; connections from said diagonal bars to said type-wheel; a type-hammer; a single universal bar operable by all of the keys, a carriage-feeding mechanism controlled by said universal bar; an arm on said universal bar; a spring connecting said type-ham'mer with said arm; and a trigger for holding the hammer and cooperative with said arm to effect the release of the hammer.

51. In a type-writing machine, the combination with a system of rearwardly-extending levers arranged in two sets and fulcrumed at their rear ends, of a type-wheel; diagonal bars placed beneath the key-levers in the rear of the type-wheel axis and diverging forwardly from their rear ends; a slotted guidebar for the forward ends of said levers; vertical perforations formed in said bar at said slots; pins placed in said perforations; springs for causing said pins to bear up against said key-levers; a gage-arm mounted concentrically with said type-wheel and extending forwardly beneath said guide-bar and having an elongated working surface; a universal bar extending transversely beneath the rear portions of the key-levers; a carriage-feeding mechanism controlled by said universal bar; a type-hammer having a yielding connection to said universal bar, so that when the latter is operated at the depression of a key it puts the hammer under tension; and a trigger caused by said universal bar to release said hammer; the latter being reset by said universal bar upon the return movement thereof.

CHARLES J..PAULSON.

Witnesses:

FRED. J. DOLE, JOHN O. SEIFERT.

US7395501A 1901-08-31 1901-08-31 Type-writer. Expired - Lifetime US727552A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696782A (en) * 1951-01-12 1954-12-14 Ncr Co Dampener for printing hammers
US20010042529A1 (en) * 1999-12-03 2001-11-22 Nissan Motor Co., Ltd. Internal EGR quantity estimation, cylinder intake air quantity calculation, valve timing control, and ignition timing control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696782A (en) * 1951-01-12 1954-12-14 Ncr Co Dampener for printing hammers
US20010042529A1 (en) * 1999-12-03 2001-11-22 Nissan Motor Co., Ltd. Internal EGR quantity estimation, cylinder intake air quantity calculation, valve timing control, and ignition timing control

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