US1026642A - Type-writing machine. - Google Patents

Description

F. W. HILLARD.

TYPE WRITING MACHINE.

APPLoATIoN FILED AUG. 15.1899.

1,926,642. Patented May 14, 1912.

VVTNEEEEE INVENTF? Ej REDf-:mEV/HLLHRD P, W. BILLARD. TYPE WRITING MACHINE.

APPLICATION -FILED AUG.15, 1899. 1,026,642, Patented May 14, 1912.

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Speceation oi Letters Pate/nt.

Patente-,array 1a, 1era.

Original application filed Augusti25, 1896, Serial No. 603,845. Divided and thsapplication filed August 15, 1899. Serial-No. 727,275.

To all whom t may concern.' y

`Be it known that I, FREDERIC W.`IIIL Lann, a resident of Tottenville, in-the count-y 'my application filed in the United States Patent Otiice on the 25th day of August, 1896, which has been `serially numbered tect by Letters Patent of the United States;

`Referring to the accompanyingdrawings The invention described in this application relates to an improved escapement for the spaced member of ty-pewriting machines, and `has for its object to provide such a construction thereof asv will result in a quick, but steady feed of the spaced member, and which will provide for suchan adjustment of the part-s as topermit the key levers to be worked with a light finger pressure.

M The escapement herein described has many advantages in common with the cscapements described in my prior patents, viz: No. 554,874, dated February 18, 1896; No. 577,982, dated March 2, 1897, Vand No. 580,281, dated AprilA 6, 1897, and No. 616,840, dated December 27th, 1898, to which patents reference is hereby made for the disclosure of the gene-ral principles in- 'volved -in the'actions of the present escapement. I will in the accompanying speciiication and claims particularly point out and claim the several features particular to this invent-ion and which I desire to proin which corresponding parts are designated by similar marks of reference: Figure 1 is a transverse section' through a typewriting machine having my improved escapement mounted thereon, the plane of section *being adjacent to the escapement. Fig. 2 is van elevation showing the escapemc-nt mechanism, and thepower` spring for the spaced vmember detached from the machine frame. Figs. 3, 4, and 5, are detailed views of the escapement, showing diagrammat-ically Ythe parts thereof in theI positions corresponding to different positions of the key levers. Figs. 6, 7, and 8, are elevations of the. escapement mechanism detached from the. r'achi'ne"y frani,ithe `positi ons of the parts'` views\of the dogs and rack of Figs. 3 to 5, j

showing more fully the cycle of movement of the dogs and rack during the movementof the keys.

In Fig. lof the drawings I have shown my improved escapementas applied to a machine of the general Remington type, although it is obvious that my improved escapement is adapted for use with other types of machines. In this machine the type b-ars 1 are actuated from' corresponding keylevers 2, as well known, the type bars 'when iny their normal position resting in a buffer or basket 3. A universal bar, 4 eX- tends beneath all the key levers, and through the connect-ing wires 5 transmits motion to the rocker frame 6, to rock the latter toward the front of the machine upon the depression of a key; the rocker frame being moved 8. The spaced member comprises a paper carriage 9, running on suit-able guides 1 0 and 11 at the front and back, and a rack o1' toothed member 12 connected therewith; the spaced member being drawn forwardly in the line of printing by. a carriage propelling power in the form of main spring 8,v all of which Vis well known. `The escapement proper. comprises two members, therack and detent, the latter composed of the .rocker frame and parts thereon.

vT he rocker frame or detent 6 is pivoted at 13 to the base of the machine, and carries two reciprocating elements or spacing dogs 14 and 15, the latterl of which is normally, engaged with the rack and the former normally disengaged but adapted to be brought. Vinto engagement therewith when the dog 15 is disengaged. The dog 14 will be hereinafter designated as the roller dog because of its lpeculiarroller construction and to distinguish'it from dog 15 which has no roller.

The rocker frame has two upwardly eli--v tending parallel arms 16 and 17, between which is pivoted the lower portion of the' normally disengaged dog 14, while the normallyiengaged' dog 15 is pivoted upon the upper end of the armi16; both dogs being pivoted to vibrate or reciprocate in the line of the carriage feed. The roller dog` 14 is mounted on the rocker 'frame toward the back of the machine, and is limited in its rearward motion in' the line of the feed on the rocker frame by an adjustable stop 184 carried on the projecting part 19 of the arm 1G, and is normally heldagainst this stop by a spring 20 secured to it and to the rocker' frame. The normally engaged d'og 15 is provided with a flattened base 21 which is adapted to bear at each end upon -the leaf 22 of an impulse spring 23 secured to the c rocker frame, the leaf being so depressed by the dogy as to be under constant tension. This spring determinesthe normal position' of dog 15 when the latter s'disengaged from the rack, and holds it in what I term a centual or intermediate position (see Fig. 8), but permits it tobe moved forwardly inthe line of the feed with the rack against a stop Q4v carried by a nose 24FL projecting from the uper part of the arm 16 of the -roclier frame A316.84() stops and .holds the normally e n gaged dog thereof, the two dogs and centering springs acting in the same manner, but by dilierent mechanism. y

In the normalposition of the parts, shown in Figs. 1, 3, and G, the rackis in engagement with the dog 15 and impelled by the main spring 8 carries the latter forwardly against the stop24. Upon the depression of a key the rocker frame is swung toward the front of the machine, the first effect of this 'movement being to disengage the rack from the .normally engaged dog 15, and before their complete disengagement'to engage the rack and roller dog 14. The dog 15, as soon as disngaged from the rack, is thrown rearwardly by its spring E23 to its central or intermediate position; while the movement of the rocker frame toward the front of the machine, together with -the 'forward spacing movement of dog 14, under the pull of the rack, brings an anti-friction bearing, in the form of a roller, carried in lugs 26, 26 on the forward face of dog 14, into contact with tooth 27 the tooth being adjustably ,mounted on the machine frame through the medium of slots 28, 28 and screws-29, 29 as lshown. Thevbacl'r end of the tooth hasa beveled face 30 thereon a ainst which theroller bears and an un eveled face 30,

the two faces forming a' point 30b on the tooth where they meet. lVith a staccato blow upon the keys the type will strike the paper immediately at or sometimes before'the engagement between the roller 25 andthe beveled face of the tooth 27, while if a legato blow is struck, the type will strike the paper sometime after the engagements of said parts, and after the carriagehas spaced for- 'ward a corresponding greater distance, and has been cammed back by the roller running up the beveled face 30 of the tooth 27, this being due to the continued movement of the `rocker frame. The function of the camming back of thecarriage in .preserving proper spacing witlrdit'crent blows, and in'preventing blurring, if the key should be held down, has been explained in my prior patents to which reference is hereby made.l `Upon the release of the ky the rocker frame is swung toward the back of the machine by theV rocker frame returning spring Y, and bythe main spring S pulling the rack 12 forward against tooth- 27, so that dog 14 is disengaged from the rack and dog 15 rengaged therewith; the rack spacing forward during such disengagement and carrying each dog forward in turn while in engagement. The dog 15 enters the rack in front of the rack tooth which was engaged with dog 14 andl spaces forwardly therewith against the stop Q4 as before described. l

The pull of the main spring 8 upon dog 14 when the latter is in engagement with the rack, tends to draw the latterfforwardly, and as the roller 25 and beveled face 30 are in engagement at' such time, also tends to force the roller to run down the bevel, thus throwing the rocker frame toward the back of the machine, and so assisting the rocker frame returning. spring 7 to restore the rocker frame 6 to its normal position.- The pull of the main spring 8 thus exerted on the rocker frame 6 results therefore'in as sisting to a greater or .less extent, in the re engagement of the normally engaged ele-y ments of the escapement; and, as the key levers are connected with rocker frame by the connecting wires and universal bar 4, it also assists in returning Vthe depressed key leverto normal position. This action ef the main spring upon the key levers I have heretofore designatedas a repulser and have described it-,as well as the ren'gagement of Ithe parts by the pnl-,lifbf the main sprinl in detail in my prior patents before referred to -,The .dogs 14 and 15'- lare each provided withgunbeveled"holding faces and beveled working edges comprising a beveled face 31 and an unbeveled face 32 on roller dog 14,

j. greater than the width of the rack.

mence its rearward movement under the influence of its impulse spring 23 before the dog has wholly escaped from the rack. This.

insures a quick proper positioning of the dog 15 to renter the rack upon the return of the parts to normal engagement. But be fore the unbeveled face 34 of dog 15 is disengaged from the rack which takes place at about the half depression of a key') the unbeveled face 32 of dog 14 .is brought into engagement with the rack, the distance be tween the junction of the beveled and un-v beveled faces on the two dogs not being During the latter half of the down stroke-on the key the unbeveled face 32 of dog 14 passeswell into the rack (see Fig. 5) and holds the carriage until after the printing. As soon as the finger pressure on the key is released dog 14 begins to be disengaged from the rack, partly under the action of theA retractile spring 7 and partly under the pull of the main spring 8. The roller 25 attached to the dog moves along the beveled face 30 of the carriage controlling tooth 27,

and the carriage feeds forward. As soon as the junction ofi the unbeveled face 32 with the beveled face 31 of dog 14 passes outof tbe'rack, the rack begins to slide along beveled face 31, and the speed of the carriage feed is thus accelerated, until finally dog 1'4 passes entirely out of the rack and the carriage finishes its feed at full speed and is stopped by the contact of the rack with the unbeveled face 34 of dog 15 and by contact of the dog with stop 24.V After the printing, therefore, the carriage is controlled by t-he unbeveled face 32 of dog 14 until the type has been started away from vthe platen. This insures that there shall be no blurring in the print'. After that the carriagel is first moved forward gradually, as the roller 25 moves along the cam surface 30, and its feed is accelerated while the rack-slides along the beveled face 31, and then the carriage Y is released to finish its feedingmovementat full speed. The proportion ofthe feed that is performed with each dog is determined by the adjusting screw 24, which limits the forward spacing of dog 15, and by toot-h 27 which limits the forward spacing of the dog` 14. By aid of these various adjustments each dog may be caused to perform its desired proportion of the carriage feed, and any part or even all of the feed may take place after printing. j

The speed and easy action of the present escapement is largely duc to the tvo-action of the roller 25 with the tooth 27; particularly is tli'is due to the fact that 25 rolls down the face 30 instead of sliding. In the operation of this device the parts are so adjusted that under normal conditions the roller 25 Vfirst contacts with 4the tooth 27 at the point 30b which is the junction of the faces 30 and 30El ofthe tooth 27. The result of the roller 25 contacting with the point 30h is, that during the further cycle of movement of the parts in the feeding of the carriage, the roller pivots about the point 30", its axis 25a moving `in the arc of, a circle whose radius is equal to the radius of 'roller 25, until theradial line from the point 3()b becomes at right angles with the face 30. The effect of this pivotal movement of the roller 25, is to rapidly withdraw the tooth 14 from the rack 12 and to permit the feeding movement of the carriage to be begun by a rapidlyaccelerated motion. vAfter the radial linev 25-301 has become perpendicular to the feeding face 30, 25 simply acts as a roller in its travel down the feeding face 30 of the `tooth 27. This radial line of the roller 25 through the point of contact 30b is designated, on Figs. 10, 11, and 12, by In Fig. 12 the line designated by v/ represents a line determined by a point of contact of the roller 25 with the feeding face 30. during the travel of the roller down said feeding face of the tooth 27.

Referring more particularly to the large diagrammatic views: Fig. 9, represents the normal position of the parts (corresponding to that shown in Fig. 3) Fig. 10 is diagrammatic of the position assumed by the parts-under the adjustmentshown, on full depression of a key, (corresponding'to that of Fig. 5); Fig. 11 represents the position of parts after the release of key and shows the roller 25 as having swung about 'the point 30h as a. pivot, into the position where the roller begins its function as a roller in its travel down the feeding face 30:v and Fig. 12 represents a later position during the return movement of the parts to normal position, Aand shows the roller as having rolled part way down the feeding face of the tooth 27.

The roller 25 may be considered as having an endless revolving feeding face, since the forward feed of the parts is permitted by the pivotal action and rolling of said member in its contact with the feeding fade 30. The forwaild feed of the carriage is due to the relative motion of the roller and the tooth 27, sflice the unbeveled face 32 of the dog y14 is maintainedv in contact with the unbeveled face 12al of the rack tooth.

The roller 25 in its rolling action on the' l feeding face 30 presents thereto an endless revolving feeding face.

The mechanism herein shown for controll ling the carriage when the kev is depressed, is an escapement roller or pivotal support 25.I a carriage rack 12, a controlling member 27. and operative connections betweensaid conformation of the feeding face on the tooth 2T"v ll-lenee l designateihe escape- ',ment shown herein as a roller escapement vprovided iv'th a lbeveled feeding andy camming, impulse face.

' As man'y changes could be madein the above structure and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained'in the above descrip- '.tion or -shown in the corresponding drawings shall be interpreted as illustrative, and not in a limiting sense. l desire it also to be understood that the language used in the claims is intendedl to cover all generic and specific features of this invention herein dcscribed and all statements of the scope ot the invention which as matter of language might be said to fall therebetween.

Having thus described my invention what I claim and desire to secure by Letters 'Patent is z# l.. ln a typewriter escapemcnt, the combination with a carriagefraclr, ot a pivoted deg having a beveled face on its side opposing the forward movement of said rack and a carriage controlling tooth determining the position oi the dog when it is in engagement therewith, substantially as described.

2. In a typewriter escapement, the. combination of a spaced member having mibeveled engaging faces thereon, ot a pair ot dogs alternately engaging with the spaced member, each of the'dogs having an unbeveled engaging tace, and a'bevelcd' face thereon, the beveled engaging 'tace ot each dog engaging the spaced member prior to the 'total 'disengagement of the dog trom the spaced member.

3. ln a .typewriter escapen'ient` the rombination /with a spaced member haring nnbeveled engaging faces thereon, of a normally engaged dog having an nnliieveled face norn'ially engaging the spaced member, and beveled face engaging the spaced member as soon as the normally'- engaged tace is disengaged therefrom, a normally disengaged dog having an imbeveled, engaging face and a vbeveled engaging tace, anda key connected to the said dogs to disengage the normally engaged dog and to engage the unbeveled :tace ot the normally disengaged dog with the said spaced mem- 'ben substantially as described;

t. The combination .in a typewriter escapement, with a power propelled carriage, oit a rack and a dog member, comprising two dogs which alternately engage with the rack, one ot whii'h engaged with and the other disengaged 'from the rack in thenormal position ot the csclipcment., a key and eoi'mections tor disengaging the norn'iallvx'Y engaged dog from therack and for engaging the normally disengaged dog therewith, and. a controlling member rigidly mounted oni-the machine and brought into' engageirent with the normally (ilisengaged dog rwhen thatdog is 'engaged with the rack', and

which is acted on by the carriage propelling power toV d' engage the normall)1 disenlraged 'dog trom the rlich, substantially' as describeifl.

5. 'The combination in av typewriter escapcment.r with a power propelled carriage, oi a raelt and a dog member, comprising two dogs which alternately engage with the rack, one of which. dogs is engaged' with and the other disengaged from the rackv in the normal position ot" the escapement, a hey and cmmections tor disengaging -the normally engaged dog ,trom the rack and tor engaging` the norn'ially disengaged dog therewith and a Controllingmember rigidly mounted on the machine and haring thereon a beveled tace which is engaged b v one of said dogs.

tl. rThe combination in a typewriter eapement. with the keys, ot a rarli and a dog member, (ain'iprising two dogs adapted to alternatelv engage with the raelt, one of which dogs is engaged with and the other disengaged from the rack in the normal position et the machine, the said normally engaging dog being' provided withI -an' unbeveled holding 't'ace which engages the rack in said normal position and with' a beveled feeding tace down whirh the. rack runs during the depression ot the keys and prior to the total disengagement ofi said normally engaging dog from the rack. substantially as described.

T. ln a. typewritmg machine` the combination with a printing mechanism. a series ot lzevs tor operating said mechanism, and a carriage carrying a rack, ot a dog moj'ed b v said keys and engaging the rack for controlling the movement of the carriage, a pivoted trame carrying said dog, a stop carried by the frame for limiting the inove ment of the dog and a spring carried by the 'trame bearing against said dog at its under side, whereby said dog may rotate in direction against the action of the spring.

S. ln a typewriter escapement, the com-v bination with a rack ladapted to be secured to a power driven carriage and a detent either of a rack and a two dogs which alternately engage with the rack, one of which dogs is engaged with and the other disengaged from the rack in the normal position of the escapement, a key and connect-ions -for disengaging the normally engaged dog from the rack and for engaging ythe normally disengaged dog therewith, an escapement retracting spring to disengage the normally disengaged dog from the rack, anda controlling member j having a beveled face which is brought into engagement with the normally disengaged dog when that dog is engaged with the rack, and which is acted on by the carriage propelling power to aid the escapement retracting spring in disengaging said normally disengaged dog from the rack, substantially as descrgbed.

10. The combination in a typewriter escapement, with a power propelledcarria'ge, of a rack vand a dog member, comprising two dogs which alternately engage with the rack, one of which dogs is engaged with and the other disengaged from the rack in the normal position of the esoapement, a

key and connections for disengaging the normally engaged dog from the rackand for engaging the normally disengaged. dog

therewith, an escapement -retracting spring to rengage the normally engaged dog with the rack, and a fixed member. having -a beveled face which is brought into engagement with the normally disengaged dog when that dog is engaged with the rack, and whichisacted on by the carriage propelling power 'to aid the escapement retracting spring in rengaging said normally engaged dog with the rack, substantially as described.

1.1. In a typewriting machine, the' combination with a carriage-rack and a' detent, of an escapement roller on saiddetent, and a carriagecontrolling toot-h adapted to engage said roller to control the movement of the carriage. i

12. In a typewritingmachine,.the combination of a carriage rack and a detent, a

normally, engaged dog having an unbeveled face which normally engages the rack, an

apement roller on the detent and a carriage controlling tooth adapted to engage said roller to release the rack and enable it to commence. its forward feeding movement.

'into action to lift the 13. In a typewriting machine, the combination of a carriage rack and a detent, a normally engaged dog and a normally disengaged escapement roller on the detent, a

carriaofelfontrolling tooth, and an adjustment o .lfvarying the portions of the carriage feed which are performed under control of. the escapement roller and under control1 of the normally engaged dog, substantial 143T In combination with the carriage and rack, a detent having two dogs with their edges adjacent to each other beveled on 15. -In a typewriter escapement, the com bination of two elements in one member which alternately enga e with the other member, both elements aving their edges adjacent to each other provided with inclined faces on the sides opposingthe forward movement of the carriage, the ltwo said inclined faces being staggered with respect toreach other,I and successively disengaged from the said other member, the one ldurmg a depression of a key and the other after the release thereof, whereby successive limited,

feeds of the carriage will occur prior to and after the release of the key.

16. In a typewriting machine, the combination of a key, carriage propelling power, an escapement, operative connections between the key and said escapement', the escapement having a roller dog and means coperating therewith for bringing the propelling power key when the key is depress ed;

17. In a-typewriting machine,the combination of a key, a carriage, a carriage propelling power, an escapeme'nt, operative connections between the key and the escapement, a controlling member; and a pivotal member vhaving an endless feeding face adapted to coperate with said controlling member to control the movement of said carriage. Y j. y

18. In a'typewriting machine, the combination of a carriage, carriage propelling power, an escapement, a controlling'member having two faces thereon and 'a member adapted to roll on one ofl said faces and to. pivotally swing from said face, the juncture formed by the junction of said faces being the fulcrum for this .pivotal action.

19. In a typewriting machine, the combination of a carriage, carriage propelling power, a key, an escapement cont-rolled by said key. a controlling member having faces intersecting at an angle, one of said faces being a feeding face, and a pivotal member having an endless feeding face adapted to coperate With said controlling member, substantially as described.

20. In a typewriter eseapement, the combination with a dog and carriage controlling tooth of a rack, whichI can be spaced step by step with respect to and under the control of the dog, and a roller on said dog adapted to engage said tooth and to thereby space the rack backward, substantially as described.

21. In a typewriter escapement, the combination of two engaging members Which can be disengaged and rengaged, means operated by the keys for disengaging the members, and a roller dog which is operated lon by the carriage propelling power for reengaging the members, substantially as described.

22. In a typewriting machine, in combination, a carriage, a carriage propelling power, a rack, a controlling member having a feeding face thereon and a roller adapted to eooperate With said controlling member, said roller being adaptedto maintain a portion of its periphery in stationary relationship with said controlling member during a portion of the feeding movement.

Signed by me in New York city, this 9th day of August, 1899.

FREDERIC W. .HILLARD Witnesses:

' ABRAM COLE,

M. C. EIGENRAUCH.

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