US688890A

US688890A - Type-writing machine.

Info

Publication number: US688890A
Application number: US71731399A
Authority: US
Inventors: Charles H Shepard
Original assignee: Wyckoff Seamans & Benedict
Current assignee: Wyckoff Seamans & Benedict
Priority date: 1899-05-18
Filing date: 1899-05-18
Publication date: 1901-12-17
Anticipated expiration: 1918-12-17

Description

Pamnted Dec. 17. I9 UI.

' c. H. SHEPARD,

TYPE WRITING MACHINE.

(Application filed. ma 18, 1899.)

4 Sheets-Sheet I.

(No Model.)

Illllll INvENTD'R.

to m

WITNESSES mmb. 5 XMWW m': NORRIS PETERS co, PNOTOJIJTHOH \usnmmou, o. c.

Patented Dec. 17, IBM.

"C. H. SHEPARD. TYPE WRITING MACHINE;

(Application filed May 18, 1889.)

4 Sheets8heet 2.

(No Model.)

TNVENTUR ITNEESEEI 6% F55 ATTDRNEY.-

No. 688,890. Patented Dec. l7, MM.

6. H. SHEPARD.

TYPE WRITING MACHINE.

(Application filed. May 18, 1899.) (No Model.) 4 Sheets-Sheet 3.

"m: NORRIS PETERS co, PHOYO-LVTHO, wlsmucmm n. c

No. 688,890. Patented Dec. l7, IQO I. C. H. SHEPARD.

TYPE WRITING MACHINE.

(Application filed May 18, 1899.) (No Model.) 4 SheetsSheet 4.

WITNESSES 5 1H5 ATTORNEY.

NITED Tamas CHARLES H. SHEPARD, or BROOKLYN,

PATENT rricn,

NEYV YORK, ASSIGNOR TO \VYOKOFF,

SEAMANS tit'BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 688,890, dated December 17, 1 01- Applieation filed May 18, 1899. Serial No. 717,313. (No model.)

To ctZZ whom it may concern.-

Be it known that I, CHARLES H. SHEPARD, a citizen of the United States, and a resident of the borough of Brooklyn, in the city of New York, in the county of Kings and State of New York, have invented certain new and useful Improvements in Type -Writing Machines, of which the following is a specification.

The present invention relates to escape to ment mechanisms for type-writing machines and also to means for locking the escapement against further forward motion at a predetermined point in the forward traverse of the carriage and for preventing the impress of I5 type upon the paper after such locking.

The escapement mechanisms employed in the art of type-writing may be divided into three classes, according totheir modes of operation. In one class of eseapement mechanisms the carriage is held stationary during thedepression of the keys and for some little time after the impact of the type and is released and moves forward a letter-space distance during the return of the type to normal position. This class of escapementsemploys a fixed or stiff holding-dog and a limber or stepping feed-dog, and the small amount of drop from the working face of the feeding-dog to the working face of the holdingdog does not materially affect the statement that the letter-space feed' movement takes place after the reengagement of the stepping feed-dog with the rack, (straight or segmental or circular.) In an escapement designed to shorten the time of the detention of the carriage after the release of the depressed key the holding-dog aforesaid has been provided with two faces at an angle to each other. One of said faces is in the plane of or is parallel to the plane of the working face of the feed-dog, and the other face of the said holding-dog is oblique to or beveled with respect to the said parallel face and is at the escape side thereof, the action of the escapement being to release the carriage after the release of the key sooner than would be the case were not the holding-dog beveled. The

two escapements above referred to belong to the same class or type of escapements. In a second class of escapements the dog thatis normally disengaged from the rack is arranged have been included within the term speedto have an independent motion in the direction of the rack and is spring-pressed in one direction against a stop and in position to engage with a rack-tooth in advance of that rack-tooth normally in engagement with a dog, which may or may not be arranged to have motion in the direction of the rack. This class of escapements is commonly referred to as speed or reversed escapements, the object being to release the carriage for a forward feed of a whole letter-space before the impact of the type upon the platen. In a third class of escapements the letterspace feed movement of the carriage takes place partly before and partly after the impact of the type.

The second and the third classes of escapem'ent mechanisms have been defined to be or 7o escapement, which term includes the reversed escapement.

The present invention relates to various improvements, some features of which may be employed with escapeinents belonging to all of said three classes of escapement mechanisms, one object of the invention being to complete the relative motion during the first part of the downward motion o'f'a key transversely of the rack and dog members. The effect of this operation will in the case of as capements of the class first above named be to give the carriage time to come to rest in case drop is allowed and be stationary at the moment of impact of the typethat is to say, the effect is to eliminate the ill effects of rebound or vibration of the carriage upon the type-impressions. So, also, in speed-escapements the carriage will have more time to move forward and be arrested and stop the rebound or vibration before the impact of the yp Another object of the invention is to cause the reverse or return relative motion of the rack and dog members during the first part of the upward motion of a key when released, thus causing in escapements in the class first above named the feeding forward of the carriage for letter-spacing during the, first part of the return movement of the key and typebar. This action is also attained in escapements of the third class above'mentioned where the final portion of the feed takes place after release of the key.

While I have hereinbefore referred to a rack and to dogs coacting therewith, it is obvious that the principle of my invention above stated is equally applicable in the case Wherein the escapement includes two rack-bars, of which one is movable endwise, and a single dog cooperating with said rack-bars, this being the so-called Oaligraph escapement long in use.

Another object of the invention is to lock the type mechanism and escapement mechanism against operation when the carriage has reached a predetermined point in its forward traverse.

To these ends the invention includes features of construction and combinations of devices hereinafter described, and more particularly pointed out in'the appended claims.

llhe preferred form of the invention is illustrated in the accompanying drawings, forming part of this specification, in which Figure 1 is a left-hand side elevation, partly broken away and partly in vertical section, upon the line Y Y of Fig. 2 of a type-writing machine (parts omitted) in which the invention is embodied. Fig. 2 is a plan view, partly broken away and partly in section, of the machine shown in Fig. 1 and certain parts of the machine being omitted. Fig. 3 is a rear elevation, partly in vertical section, upon the line X X of Fig. 2. Fig. 4 is a perspective View of the rocker-arm or vibrator shown in Figs. 1 and 3 and the parts carrying the same. Fig. 5 is a perspective view of the dog-carrier and dogs. Fig. 6 is a perspective View of a ball-bearing for the dog-carrier, the balls being omitted and the view being on a smaller scale than Fig. 5. Figs. 7 and 8 are diagrammatic plan views illustrative of the operation of the escapement. Fig. 9 is a perspective view of part of the type and carriage locking mechanism. Fig.10 is a detail view of another part of said mechanism.

The same reference-numeral will be used to indicate the same part in the various views of the drawings.

1 indicates a base frame; 2, standards formed in one with the frame 1; 3, a top plate or type-ring secured to the standards 2 and provided with lugs or ears 4 5; 6, a carriage guide-rail secured to the lugs 4; 7, a carriage guide-rail secured to the lugs 5; 8, a carriage provided with rollers 9, running upon the rail 7, and with a forked arm 10, which embraces a flanged sleeve 11, adapted to slide upon the rail 6; 12, a platen-carrier pivotally con nected at 13 wit-h a rod 14, which in turn is carried by arms 15 of a shaft journaled at 16 in the carriage 8; 17, a platen journaled in the carrier 1.2; 18, a guide-roller at the front of the platen-carrier running upon a shift-rail 19; 20, a rack-bar connected with the carriage 8 to be lifted out of mesh with a toothed wheel 21; 22, a shaft upon which the wheel 21 is fast; 23, a bearing for the shaft 22; 24, a circular rack or ratchet-wheel loose upon the shaft 22 and connected therewith by means of a backing-ratchet within a casing 25; 26, a toothed bar arranged between the standards 4 and of a length less than the distance between the same; 27, a pin secured in the right-hand standard 4 and forming a loose bearing for the bar 26; 28, a shouldered pin passing through the left-hand standard 4 and entering a socket in the bar 26; 29, a flat spring secured to the left-hand standard 4'and pressing against the pin 28 to hold the rod 26 normally toward the right of the machine; 30, a right-hand-margin stop-carrier adjustable along the bar 26; 31, an adjustable left-hand marginal stop-carrier; 32, a cam on the carrier 31; 33, a bell-trip pivotally connected with the carriage 8 and adapted to coact with the cam 32 to rock the bar 26 and bell-hammer 34 and to release the same to sound the gong 35;

36, an adjustable final carriage-stop arranged upon the bar 26 and provided with a pin 37 to coact with the arm 10 in the usual manner; 38, an arm underneath the bar 26; 39, a pushrod having an upturned end 40, engaging with a slot in the arm 38 for rocking the bar 26 to release the margin-stops from engagement with the carriage in the usual manner; 41, a spring-drum; 42, a strap connecting the spring-drum with an arm 43 of the carriage 8; 44, a lever pivoted at 45 to the platen-carrier l2 and adapted to lift the rack 20 out of engagement with the pinion 21.

46 represents key levers provided with notches 47 in their upper edges near their rear ends; 48, a rib underneath the top of the base 1, with which the said notches engage; 49, springs attached to the frame of the machine and pressing the key-levers into engagement with the rib 48; 50, one of the rods pivotally connected with the key-levers and with typebars 51; 52, type-bar hangers secured to the type-ring 3; 53, a universal bar underlying the key-levers and provided with two hooked rods 54; 55, a transverse bar with which the hooks of the rods 54 engage; 56, an arm extending forward from a rock-shaft 57 and to which the transverse bar 55 is secured; 58,

ears upon a plate 59, depending from the top plate 3 and between which the shaft 57 is journaled; 60, a spring secured at one end to the shaft 57 and hooking over a cross-bar of the plate or frame 59 and tensioned to hold the adjustable stop 61 against the under side of the said frame 59, the said stop 61 being connected with the arm 56 aforesaid. I

The devices thus far described, as well as others shown, but not described, and also others omitted from the drawings for the sake of clearness, are to be found in the well-known Remington No. 6 machine.

Referring now more particularly to my improvements, 62 is an upwardly-extending arm rigid with the shaft or pivot 57.

63 is a resilient sheet-metal arm formed with a cross-head 64 and a lateral branch 65, which is bent at substantially a right angle thereto and is perforated to receive a screw 66, which passes therethrough and engages with a threaded hole in the arm 62. The cross-head 64. is provided with upwardly-extending ears 67 68 at the ends thereof.

69 is a resilient arm provided with a crosshead 70, arranged at about the height of the cross-head 61, and the arm 69 is secured to the arm 62 in a manner similar to that in which the arm 63 is secured thereto. The arm 63 is provided with a threaded perforation for the reception of a screw 71, which is adapted to bear against the arm 69 for apurpose presently to appear and is provided with locking-nuts 72.

At about the height of the

lugs

67 and 68 the frame or bracket 59 is provided with a rearwardly-projecting bracket 73, which is firmly secured thereto by screws 74, passing through perforations and engaging threaded holes in the frame 59. The horizontal part of the bracket 73 is slotted or cut away at 76, and one wall of the slot 76 is provided with a \l-groove 77. Opposing the groove 77 is a V-groove 78 in an angle-piece 79, which is adjustably secured to the bracket 73 by means of slots 80 in the angle-piece and screws 81, which pass through the slots and engage in threaded holes in the bracket 73, the slots being arranged to permit motion of the angle-piece 79 toward and from the groove 77. 82 and 83 are respectivelyback andfront stops for the dog-carrier next to be described.

84 is a metal block formed with lateral arms 85 86, upright lugs 87, and

downwardlyprojecting ears

88 and 89. A dog 90 is rigidly attached to the block 8% by a screw 91. A second dog 92 ispivoted between the lugs 87 by pin 93 and is provided with horizontally-extending

arms

94 and 95, respectively, above the

lateral arms

85 and 86 of the block 84. The

arms

94 and 95 are arranged relatively to the

arms

85 and 86 to allow a limited swinging motion of the dog 92 about its axis 93, the said

arms

94 and 95, in cooperation with the

arms

85 and 86, forming stops or limiting means for the said motion of the dog 92. A coiled spring 96, inserted in a socket in the block 84 and bearing against the under side of the arm 94, is adapted to throw the dog 92 about its axis to bring the arm 95 in contact with the lug 86. The block 84 is provided with side V-shaped grooves 97 and 98, adapted to face the grooves 77 and 78 aforesaid, as shown in Fig. Sets of balls 99 are inserted in opposing V-grooves 77 and 97 and 78 and 98. Suitable pins 100 in the grooves 97 and 98 prevent escape of the balls from the channels formed by said grooves. The downwardly-extending

ears

88 and 89 are slotted at 101 horizontally for the reception of rollers or disks 102 103, which are secured in place by pins 10;, which form axes therefor. The rollers 102 103 are at about the middle horizontal line of the

crossheads

64 and 70, above described, and are shown as hearing against the outer sides thereof. The head 64. is shown as provided with two recesses or depressions 105 106.,adapted for the reception of the roller 103, which projects from the car 88. The screw 71 is turned to cause the

arms

63 and 69 to spread apart; but the upper ends of these arms are held against spreading by the rollers 102 103.

The

lugs

67 and 68 are separated by a distance greater than the distance between the front and rear faces 107 108 of the block 84 and are adapted to engage with those faces in certain relative positions of the parts. The excess of the distance between the

lugs

67 and 68 over the distance between thefaces 107 and 108 is equal orsubstantially equal to the distance between the centers of the

recesses

105 and 106. The head 70 may be, but preferably is not, recessed to engage normally with the roller 102.

The operation of the foregoing devices is as follows: Upon the depression of a key the corresponding type is thrown toward the printing-point and the universal bar 53 and transverse bar 55 are drawn downward, thus rocking the

arms

63 and 69 forwardly of the machine. The described connection between the

arms

63 and 69 and the dog-carrier 8% causes the carrier to move forward from the stop 83, against which its arm 86 normally rests, until the carrier is arrested by the contact of arm 86 against the stop 82. During this time the heads 64: and 70 keep their positions relatively to the carrier 8st, as shown in Fig. 7, and the dog 92 is carried out of engagement and the dog 90 into engagement with the rack 24. Upon the release of dog 92 from the rack the spring 96 throws the dog 92 from the position shown in Fig. 1 to the position shown in Fig. 5. In Fig. 1 the arm 95 is out of contact with the lug 86, while the arm 94. is held down against the lug 85 by the action of the carriage-spring, rack-pinion 21, shaft 22, and rack 24. The arrest of the dogcarrier 84: by the stop 82 occurs during the first part of a depression of a key, and as soon as the dog-carrier is arrested the

connectingarms

63 and 69 yield to the pressure of the rollers in engagement therewith and continue to move forward to the relative positions shown in Fig. 8, in which the roller 103 is engaged with the recess 105. This additional movement of the rocker or

vibratory arms

63 and 69 provides for the necessary movement of the type-carrier to bring the type against the platen 17 or the substance thereon. Upon the release of the depressed key the spring 60 throws the vibrator or rocker-arm rearwardly of the machine and the connection between the dog-carrier (through its rollers) and the vibrator first carries the dog-carrier rearwardly against stop 83, and'thereafter the vibrator yields or gives under the pressure between the

rollers

102 and 103 and the cross-heads and moves rearwardly until arrested by the stop 61 and the frame 59 and intothe position illustrated in Fig. 7. During the described motion of the dog-carrier 84 from against the stop 82 until arrested by the stop 83 the dog 90 is disengaged from the rack and the dog 92 is engaged with the next tooth of the rack and is carried over by the force of the carriage-spring until its arm 94 is arrested by the lug or into the position illustrated in Fig. 1. It will thus be seen that the relative motion of the rack and dog members transversely of the rack takes place during the first part of the down motion and during the first part of the up motion of a fully-depressed key and that in the first case the holding-dog is engaged with the rack and the feeding-dog is disengaged therefrom long before the impact of the type, thus insuring that the carriage shall beat rest even if a large amount of drop be provided for, and that in the second case the dog is carried out of and the dog 92 is carried into engagement with the rackimmediately after the type falls away from the platen and that the carriage moves forward and is arrested by the dog 92 before the descending type has returned to normal position.

As above stated in substance, the distance between the inner faces of the lugs 67 68 is equal or substantially equal to the distance between the centers of recesses 106 plus the distance between the faces 107 108 of the block 84. As indicated in Figs. 7 and 8, the excursion of the vibrator-arm is such that should the rollers 102 103 and recesses 105 106 at any time fail to move the block 84 and the dogs at the initial part of the movement of the vibrator in either direction the lugs 67 68 engage with the faces 107 108 and positively move the block 84 and the dogs to effect the disengagement of one from and the engageirent of the other with the rack, thus insurin g that letter-space movement of the carriage shall take place notwithstanding the failure of the frictional devices or connections to move the block 84 and its dogs at the initial portion of the movement of a key in either direction.

WhileI have illustrated my invention as applied to an escapement of the class first above named, it is obvious that the principle thereof may be applied in each of the other classes of escapements above described, and some of my claims are framed to cover the universal application of the principle.

The means shown for locking the type and carriage mechanism will now be described.

109 is a transverse shaftjournaled in bearings in the framework of the machine and provided with beveled gears 110 for actuating the ribbon-spool gears 111, the shaft being movable endwise, as usual in the Remington machine, in orderto connect the gears thereon alternately with the spool-gears 111. At a central point of the shaft 109 is placed a sleeve 112, loose thereon and provided with a downwardly-extending arm 113 and with a rearwardly-extending arm 114. A forwardlyextending arm 115 is clamped between the arm 113 and a block 116, secured to the arm 113 by a screw 117. The arm 115 is bowed downwardly and upwardly from the arm 113 to about the center of the type-basket. where it is provided with a disk 118, of leather or other material, that will not injure the type-faces. The disk or plate 118 normally lies out of the path of the type-blocks 119, as indicated in full lines in Fig. l. The arm 115 extends rearwardly from the arm 113 and is provided with a weight 120 for counterbalancing that part of the arm 115 forward of the arm 113 and the disk 118, a slight excess of weight being allowed the forward part of the arm and the disk in order to hold the same, as shown. in full lines in Fig. 1. The weight 120 may be adjustable along the rod 115. The plate 59 is provided with an extension toward the right of the machine, and in this extension is journaled a rockshaft 121, which is provided at one end with a curved arm 122, having a forked end adapted to engage above and below the arm 114 aforesaid. The arm 114 extends in rear of the arm 122 and between two guides 123 for the purpose of preventing the sleeve 112 from moving endwise of the shaft 109, said guides 123 being secured to or forming part of the plate 59 aforesaid. The shaft 121 is provided with an upwardly-extending arm 124, which passes through a slot in the top plate 3 and extends a short distance above the same. The endwise-movable bar 26 aforesaid is provided with an arm 125, rigidly connected therewith and passing alongside the upper end of arm 124 and bending around the same at the right at 126 for a purpose presently to appear.

The operation of the type and carriage mechanism lock is as follows: As the carriage moves toward the left the bell-trip 33 first coacts with the cam 32 to rock the bar 26 and so move the clapper 34 away from the gong 35. As the trip passes beyond the cam 32 the bar 26 is suddenly released and the gong is sounded. As the carriage moves farther toward the left the bell-trip 33 comes in contact with the lug 127, connected with the slide 31, and thereafter and during the continued motion of the carriage toward the left the bar 26 is moved end wise against the force of spring 29 and through the arm 125 and hook 126 actuates the lever or arm 124, moving it toward the left hand of the machine and through the rock-shaft 121 and arm 122, depressing the arm 114 of the sleeve 112 to the position shown in dotted lines in Fig. 1 and simultaneously raising the arm 115 and disk 118 to the positions shown in dotted lines in Fig. 1, in which position the disk or stop 118 arrests all the type should the keys be struck and prevents them from reaching the platen. At the same time the rack 24 is locked against motion through its connection with the carriage and the connection of the carriage with the bar 26. By pressing the rod 39 rearwardly of the machine the bar 26 is rocked upon its pivots, thus moving the lug 127 out of contact with the trip 33, whereuponthe spring 29 pushes the bar 26 toward the right hand of the machine to normal position, and upon the release of the rod 39 the bar 26 rocks into its normal position, but with the lug 127 behind or to the right of the bell-trip 33, and the carriage is free to move toward the left-hand side of the machine upon the depression and release of any key. The return of the bar 26 toward the right-hand side of the machine moves the catch or hook 126 away from the arm 124, whereupon the weight of the parts restores them to normal position or that shown in full lines in Fig. 1. The type mechanism is thus unlocked and adapted to be actuated to coact with the platen to make impressions, as before, until the arm 10 of the carriage comes in contact wit-h the pin 37 and again moves the bar 26 toward the left-hand side of the machine and so actuates the

lovers

124, 122, 114, and 115 to lift the disk 118 in theposition shown in dotted lines in Fig. 1, and thus finally lock the type and carriage mechanisms against further operation. Upon the return of the carriage toward the right-hand side of the machine the type and carriage locking mechanisms are released, as will be understood, by the return motion of the bar 26, and the intercepter or disk 118 drops down out of the paths of travel of the type-bars to the printing-point, so that one or more letters may be written after the type mechanism is once looked and released.

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

1. In a type-writing machine and in an escapement mechanism, the combination of rack and dog members having a limited relative motion transversely of the rack, and a vibrator frictionally connected with the transversely-moving member to move the same and havinga motion greater than said limited relative motion.

2. In a type-writing machine and in an eseapement mechanism, the combination of a rack, a dog normally out of engagement therewith and one of said rack and dog elements having a limited motion transversely of the rack, and a vibrator frictionally connected with the said transversely-moving element to move the same and having a motion greater than said limited relative motion.

3. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog normally in engagement therewith and one of said rack and dog elements having a limited motion transversely of the rack, and a vibrator frictionally connected with the said transversely-moving element to move the same and having a motion greater than said limited relative motion.-

t. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog normally out of and a dog normally in engagement therewith and one of said dogs being movable independently parallol with the rack, and said rack and dogs having a limited relative motion transversely of the rack, and a vibrator frictionally connected with said transversely-moving element to move the same and havinga motion greater than said limited relative motion.

5. In a type-writing machine and in an escapement mechanism, the combination of a rack, a stepping-dog normally in engagement therewith, a dog normally out of engagement therewith, said dogs and said rack having a limitedrelative motion transversely of the rack, and a vibrator frictionally connected with the said transversely-moving element to move the same and having a motion. greater than said relative motion.

6. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier, a front stop and a back stop for limiting the motions of said carrier transversely of the rack, an actuator having a greater motion than said dog-carrier in the normal operation of the machine and which is connected to the type mechanism, and means connecting said actuator with said dogcarrier for causing the latter to start to move with the actuator during the first part of the forward movement of the latter and for enabling the said actuator to continue its full forward stroke after the dog-carrierhas been arrested by its front stop, and for causing the said dog-carrier to start back on the initial return movement of said actuator, and for permitting said actuator to complete its full stroke after the said dog-carrier hasbeen arrested by its back stop.

7. In a type-writing machine and in an escapementmechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack, ball-bearings for said carrier, and a rocker-arm operatively connected to said dog-carrier and adapted to move it at the initial portion of the forward movement of said arm, the said arm. having a greater extent of movement than the dogcarrier.

8. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack, a fixed and a movable dog upon said carrier, a rockerarm yieldingly and directly connected with and having a greater motion than the carrier, and means for causing said carrier to move with the rocker-arm during the initial portion of the forward movement of said arm.

9. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack, a stepping feed-dog on said carrier normally engaged with the rack, a dog on said carrier normally disengaged from the rack, a vibrator yieldingly and directly connected with and having a greater motion than the dog-carrier,and means for causing said carrier to move with the rocker-arm during the initial portion of the forward movement of said arm.

10. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack, stops limiting said motion, ballbearings for said carrier, a fixed and a stepping dog on said carrier, and a rocker yieldingly connected with and having a greater motion than said carrier.

11. In a type-writing machine and in an escapement mechanism, the combination of a rack, a carrier having a limited motion transversely of the rack, ball-bearings for said carrier, a stepping feed-dog and a fixed holdingdog on said carrier, and a rocker-arm yield ingly connected with and having a greater motion than said carrier.

12. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack, and a spring rockeranm having a greater motion than the carrier and engaging therewith by recessed and projecting parts.

13. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack, a vibrator for operating said carrier and having a greater motion than the same, and. direct yielding connections'between the vibrator and carrier and means for causing said carrier to move with the vibrator during the initial portion of the forward and rearward movements of said vibrator and for permitting the vibrator to move after the carrier is arrested.

14. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having alimited motion transversely of the rack, and a vibrator hav ing a greater motion than the carrier and connected directly therewith by recessed and projecting parts of which one is resilient.

15. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack and provided with rollers, oppositely-acting spring-arms engaging with said rollers and at least one of which arms is recessed for such engagement and said arms having a greater motion than said carrier.

16. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack for a limited distance, ball-bearings for said carrier, rollers connected with said carrier, and oppositel y-actin g spring-arms for engaging said rollers and at least one of which is recessed for such engagement and said arms having a greater motion than said carrier.

17. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack for a limited distance, ball-bearings for said carrier, oppositely-acting spring rocker-arms one of which has recesses, rollers on said carrier, one of which engages said recesses and said arms havlnggreater motion than the dog-carrier.

18. In a type-Writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack and provided with grooves, companion grooves fixedly arranged 011 the framework of the machine, antifriction-balls in said grooves, and key-operated mechanism for actuating said dog-carrier, to move it therewith during the initial portion of the movement of said key-operated mechanism and to permit said mechanism to move independently thereof after the carrier has attained a position of rest.

19. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack for a limited distance, ball-bearings for said carrier, rollers connected with said carrier, oppositely-acting spring rocker-arms engaging with said rollers, and means for varying the tension of said arms.

20. In a type-writing machine and in an escapement mechanism, the combination of a rack, a vibrator, dogs for coactionwith the rack and connected with the vibrator to be moved thereby during the first part of the motion of the vibrator in each direction, and means for holdingthe dogs stationary during the latter part of the motion of the vibrator in each direction.

21. In atype-writing machine and in an escapement mechanism, the combination of rack and dog members, a dog-carrier movable transversely of the rack, a vibrator connected with the carrier to move the same during the first part of the motion of the vibrator in each direction, and means for holding the carrier stationary during the latter part of the motion of the vibrator in each direction.

22. In a type-writingmachine and in an escapement mechanism, the combination of rack and dog members having relative motion transversely of the rack, a vibrator connected with the dog member to move the same during the first partof the motion of the Vibrator in each direction, and means forholding the dog member stationary during the latter part of the motion of the vibrator in each direction. 7

23. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog normally ont ot'engagement therewith, and one of said-rack and dog elements having motion transversely of the rack, avibrator connected with the said transverselymoving element to move the same during the first part of the motion of the vibrator in each direction, and means for holding the said moving element stationary during the latter part of the motion of the vibrator in each direction.

24. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog normally in engagement therewith, and one of said rack and dog elements ICC gagement with the rack, and one of said dogs being movable independently parallel with the rack, and said rack and dogs having a relative motion transversely of the rack, a vibrator connected with the said transverselymoving element to move the same during the first part of the motion of the vibrator in each direction, and means for holding the said moving element stationary during the latter part of the motion of the vibrator in" each direction.

26. In a type-writing machine and in an escapement mechanism, the combination of a rack, a stepping dog normallyin engagement therewith, a dog normally out of engagement therewith, said dogs and said rack having relative motion transversely of the rack, a vibrator connected with the transverselymoving element to move the same during the first part of the motion of the vibrator in each direction, and means for holding the said moving element stationary during the latter part ofthe motion of the vibrator in each direction.

27. In a type-writing machine and in an es capement mechanism, the combination of a rack, a dog normally in engagement there- -wit-h and one of said rack and dog elements having motion transversely of the rack, a vibrator frictionally connected with the transversely-moving element to move the same during the first part of the motion of the vibrator in each direction, and positively-acting means for moving said transversely-movable element on failure of said frictional connection to act. 28. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog normally in engagement therewith and one of said rack and dog elements having motion transverselyot' the rack, a vibrator frictionally connected with the transversely-moving element to move the same during the first part of the motion of the vibrator in each direction, means for holding said movable element stationary during the latter part of the motion of the vibrator in each direction, and positively-acting means for moving said transversely-movable element on failure of said frictional connection to act.

29. In a type-writing machine and in an escapement mechanism, the combination of a rack, a frictionally-operated dog-carrier, and positively-acting means for moving the dogcarrier on failure of the frictional means to act.

30. In atype-writing machine and in an es-' capement mechanism, the combination of rack and dog members havinga limited relative motion transversely of the rack, a vibrator frictionally connected with the transverselymoving member to move the same and having a motion greater than said limited relative motion, and means carried by the vibrator for positively moving said transversely-moving member upon the failure of the frictional connection to act.

31. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog normally in engagement therewith and one of said rack and dog elements having a limited motion transversely of the rack, a vibrator frictionally connected with the said transversely-moving element to move the same and having a motion greater than said limited relative motion, and means carried by said vibrator for moving said transversely-moving element upon failure of the frictional connection to act.

32. In a type-writing machine and. in an escapement mechanism, the combination of a rack, a dog normally out of and a dog normally in engagement therewith and one of said dogs being movable independently parallel with the rack and said rack and dogs having a limited relative motion transversely of the rack, a vibrator frictionally connected with said transversely-moving element to move the same and having a motion greater than said limited relative motion, and positively-acting means for moving said transversely-movable element on failure of said frictional connection to act.

In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack,a fixed and a movable dog 11 pon said carrier, a rocker-arm yieldingly connected with and having a greater motion than the carrier, and positively-acting means for moving said carrier upon failure of said yielding connection to act.

34. In a type writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack, a stepping feed-dog on said carrier normally engaged with the rack, a dog on said carrier normally disengaged from the rack, a vibrator yieldingly connected With and having a greater motion than the dog-carrier, and positively-acting means for moving said carrier upon failure of the yielding connection to act.

35. In a type-writing machine and in an escapenient mechanism, the combination of a rack, a dog carrier having a limited motion transversely of the rack, a vibrator having a greater motion than the carrier and connected therewith by recessed and projecting parts of which one is resilient, and positively-acting means for moving said carrier upon failu re of said resilienteonnection to act.

36. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier having a limited motion transversely of the rack and provided with rollers, oppositely-acting spring-ar1ns engaging with said rollers, and at least one of which arms is recessed for such engagement, and said arms having a greater motion than said carrier, and positively-acting means for moving said carrier upon failure of said rollers and spring-arms to move the carrier.

37. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack for a limited distance, ball-bearings for said carrier, rollers connected with said carrier, oppositelyacting spring-arms for engaging said rollers and at least one of which is recessed for such engagement and said arms having a greater motion than said carrier, and positively-acting means for moving said carrier upon failure of said rollers and spring-arms to move the carrier.-

38. In a type-writing machine and in an escapement mechanism, the combination of a rack, a dog-carrier movable transversely of the rack for a limited distance, oppositelyacting-spring rocker-arms frictionally connected With and having greater motion than the carrier, and lugs on said arms adapted to engage with and move the carrier upon failure of said frictional connection to move the carrier.

39. In a type-Writing machine and in an escapement mechanism, the combination of a rack, a stepping or feeding dog normally engaged With the rack, a key-operated reciprocating universal bar for operating said dog transversely of said rack, means for stepping the dog at the initial portion of the initial movement of the universal bar and after it has been moved transversely out of engagement with said rack, a transversely-movable dog for holding the rack during the said stepping movement of the first-'i'nentioned dog, means for arresting the transverse movements of said dogs both before the completion of the initial movement of the universal bar and before the completion of the return movement of said "universal bar, and means for releasing the rack from the said holdingdog at the initial portion of the return movement of the universal bar.

40. In a type-writing machine and in an escapement mechanism, the combination of a rack, a stepping or feeding dog normally engaged with the rack and movable trans versely thereof, a finger-key provided with means for operating said dog, means for stepping the dog at the initial portion of the initial movement of the finger-key after said dog is disengaged from said rack, a transversely-movable dog for holding the rack during the said stepping movement of the firstmentioned dog, means for arresting the transverse, movements of said dogs both before the completion of the initial movement of the finger-key and before the completion of the return movement of the finger-key, and means for releasing the rack from the said holdingdog at the initial portion of the return'movement of the linger-key.

4-1. In a type-Writing machine and in an escapement mechanism, the combination of a racl ,a stepping or spacing dog, a holding-dog, a dog-carrier, a finger-key provided with means for operating the dog carrier, and means for arresting the dog-carrier upon its movement in either direction independently of the finger-key and before the completion of the stroke thereof.

42. In a type-writing machine, the combination of a series of type-bars, a compound lever having fulcra at right angles to each other, a type-stop carried by one member of said lever, and carriage-operated means for actuating the other member of said lever.

43. In a type-writing machine, the combination of a series of type-bars, a pivoted disk or stop-carrying arm, a swinging arm connected with the stop-carrying arm for operating the same, an arm connected with the pivot of the swinging arm, an endWise-movable bar for actuating the last-mentioned arm, and devices upon the carriage for actuating the bar.

44. In a type-Writing machine, the combination of a series of type-bars, a type-stop, a pivoted arm carrying said stop, an arm connected to the pivot of the stop-carrying arm, a swinging arm pivoted at rightangles to the pivot of the stop-carrying arm, a second arm' connected to the pivot of the swinging arm, an endwise-movable bar,an arm extending from said bar to engage the said second arm, and means connected with the carriage for actuating the endWise-movable bar.

45. In a type-writing machine, the combination of a series of type-bars, an arm loosely mounted upon an endWise-movable shaft of the machine, an intercepting-disk carried by said arm and moved thereby into and out of position for intercepting the travel of said bars to the printing-point, a second arm rigidly connected With the first-named arm, a guide for the second-named arm whereby the two arms are prevented from moving endwise of or with said shaft, and carriage-operated mechanism for actuating the second-named arm.

46. In a type-writing machine, the combination of a series of type-bars, a compound lever, a type-bar-stopping disk carried by one member of said lever, an endwise-movable and rocking bar, an armvon said bar adapted to actuate the other member of said lever on the endwise motion of said bar and to release the lever on the rocking of the bar, and devices upon the carriage for moving said bar endwise to actuate said lever and disk.

47. In a type-writing machine, the combi nation of a series of type-bars, oppositely projectingcrank-

arms

122 and 124, a pivoted stop-carrying arm connected with the arm 122 and adapted to be brought into the path of the moving types and a carriage-actuated endwise-movable bar connectedwith the arm 124.

48. In a type-writing machine, the combination of a type-ring or top plate, a series of type-bars pivotally connected with said ring and hanging below the same, an arm pivoted below said top plate, an intercepting-disk carried by said arm, a second arm pivoted below said plate and projecting thereabove and connected with the disk-carrying arm to operate the same, an endwise-movable bar mounted above the top plate, a device upon the carriage for actuating said bar, and an arm from said bar extending to and actuating the said second-named projecting arm.

49. In a type-writing machine, the combination of a series of downwardly hanging type-bars,an intercepting-disk therefor, a pivoted arm carrying said disk, a second and downwardly-projecting arm connected with and operating said disk-carryin g arm, an endwise-movable and rocking bar, an arm rigidly connected with said bar and having a bent end adapted to engage with said secondnamed arm to actuate the same and the diskcarrying arm, means for rocking said bar and its arm to disengage the latter from the forwardly-projecting arm, and devices upon the carriage for moving said bar endwise,

50. In a type-writing machine, the combination of pivoted type-bars, a disk or stop normally out of the path of the type, a rock-shaft having an arm for surporting said disk, a second rock-shaft at right angles to the first and provided with an arm for operating the firstnamed shaft, an upwardly-projecting arm on the second rock-shaft, and means whereby the carriage actuates the upright arm and second shaft at a predetermined point in the forward traverse of the carriage to raise the type-stopping disk into operative position.

51. In a type-writing machine, the combination of type-bars, a platen, a carriage, a transverse rod or shaft, a sleeve loosely journaled on said shaft and provided with an arm, a type-arresting disk or plate on said arm, a second arm on said sleeve, a rock-shaft having an arm engaging the said second arm and having a second upstanding arm, and means whereby the carriage operates said upstanding arm to throw said disk into position for arresting the type-bars as they are thrown toward the printing-point. V

52. In a type-writing machine, the combination of pivoted type-bars, a platen, a car riage, a transverse rod or shaft, a sleeve loosely journaled on said shaft and provided with rearwardly and forwardly projecting arms, a type-stopping disk on the forward arm of the sleeve and normally outof the path of the type, a rock-shaft provided with an arm for depressing the rearWardly-extending arm of said sleeve to rock the sleeve, an up-' standing arm on said rock-shaft, an endwisemovable bar upon the frame of the machine and provided with a hook adapted to actuate said upstanding arm, and means whereby the carriage moves said bar endwise and so actu ates the rock-shaft sleeve and type-stopping disk when the carriage reaches a predetermined point in its forward traverse.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of New York, this 17th day of May, A. D. 1899.

CHARLES H. SHEPARD; Witnesses:

K. V. DONOVAN, A. F. WARNECKE.