US423689A - howell - Google Patents

Description

'(No Model.)

7 Sheets-Sheet 1. W. J. HOWELL. APPARATUS FOR PRODUCING INDENTED TYPE IMPRESSIONS.

Patented Mar. 18,1890. 3

WITNESSES: INVENTOI? RIM Y #owcL 4 4 W Z- W w 4 M LTOR/VEY (No Model.) 7 Sheets-Sheet 2.

W. J. HOWELL.

APPARATUS FOR PRODUCING INDEBLTED TYPE IMPRESSIONS.

No. 423,689. Patented Mar. 18, 1890.

WITNESSES: INVE/VTUR (No Model.) "(sheets-sheet 3.

W. J. HOWELL.

APPARATUS FOR PRODUGING INDENTED TYPE IMP RESSIONS.-

No. 423,689. Patented Mar. 18, 1890.

:14 m1, m3 A26 ILL! ATTORNEY u Pnens mmumo n m. Wnhinglon, u. c.

4 n. 8 e h s A w e e h s 7 L L m 0 H J 4 V 0 M 0 m APPARATUS FOR PRODUCING INDENTED TYPE IMPRESSIONS.

Patented Mar. 18, 1890.

- l/VVE/VTOI? ATTORNEY N4 Pains. PlwlvUMQgr-whar. Washington. D c,

(No Model.) 7 Sheets-Sheet 6.

W. J. HOWELL. Y APPARATUS FOR PRODUCING INDEN'I'ED TYPE IMPRESSIONS. No. 423,689. Patentegl Mar. 18, 1890.

. A WITNESSES: I W A Hwy/won A MW JA L arm W {ITTORNEY (No Model.) '2 Sheets-Sheet 7.

I W. J. HOWELL. APPARATUS FOR PRODUCING INDENTED TYPE IMPRESSIONS.

NQ. 423,689. Patented Mar. "18, 1890.

Fig-

WI TIIIES-SES: A IIVV EIVTOH @LQMA /arromvrk present application.

I UNITED STATES PATENT .OFFICE.

WILLIAM JAMEs HOWELL, or rLusnmc; NEW ronlc APPARATUS FOR PRODUCING INDENT ED TYPE-IMPRESSIONS.'

SPECIFICATION forming part of Letters Patent No. 423,689, dated March 18, 1890. v

- Application filed a... s, 1889. Serial No. 313,285. (No model.)

.ducing indented type-impressions upon paper or other soft materiahwhich impressions may subsequently be used as stereotype-molds.

My invention consists in the construction of the apparatus hereinafter more particularly set forth, in which the material which is to form the matrix and in which the type are to produce their indentations is disposed in front of an annular type-cylindeiy in which [cylinder are radial chambers in which the type are placed. The hammer is disposed inside the cylinder and is actuated to strike and press on the protruding rear end of any one of the type which may be presented to it. The types are movable longitudinally and are arranged in the same horizontal plane as the hammer, so.that the rotation of the cylinder on its axis brings any one of the type in place in front of the hammer. the hammer delivers its stroke it causes the type in front of it to move longitudinally, so that the type is driven into the paper, wax, or other material which is to form the matrix. This material is then moved a certain dis-' tance to the rightto space the letters and the cylinder is again adjusted-so as to bring another type in front of the'hammer, and this type is caused to indent itself in the same way, and thus a series of indentations is made upon thepaper corresponding exactly to the letters which would be printed by the type if the faces of the type were inked. The matrix being thus formed is removed from-the machine and serves as a mold for stereotyping or electrotyping in metal in the ordinary way.

In another application filed simultaneously herewith, Serial No. 313,284, filed June 6, 1889, I have fully described and claimed, broadly,

"various combinations and instrumentalit-ies which are also shown and described in my The subject-matter of my said other application I do not herein claim.

Consequently when My present invention relates more particularly to the construction whereby, instead of a single tier of type disposed in an annular cylinder which is rotated to bring the individual type into the path of movement of a hammer vibrating in the space within said cylinder, two or more-tiers of type are arranged in the cylinder and the cylinder may be raised or lowered to bring any given tier into the'plane of movement of the hammer. In this way I am enabled to use a great many dilferent letters or characters in the machine, inasmuch as I may multiply the number of tiers of type; also, by my present construct-ion, when a 'key is a depressed it causes first a vibratory mo-- tion of a pivotedbanwhich, being transmitted to the type-cylinder, rotates said cylinder and brings a type corresponding to the key that is moved into the path of the hammer. Then when the key is still further depressed said key becomes locked to mechanism communicating with a wheel actuated by an external motor, and the motor then through the key .actuates the devices for raising or lowering thetype-cylinder and for moving the material to be indented in front of the type in order to space the impressions at properdis-' vtances.

It is to be distinctly gunderstood that the drawings forming part hereof are not working-drawings, nor are they'drawn to any delinite scale, nor are the parts represented in exact relative sizes and proportions; but any mechanic skilled'in the art will readily comprehend how the parts are to be modified or arranged to bring about the proper timing and co-ordination of the movements' In the accompanying drawings,-Figure 1 is a vertical section of the machine on the line X X of, Fig. 2. Fig. 2 is a plan view. Fig. 3 is an end elevation of the machine, looking toward the rear side of the movable carriage. Fig. 4 is a sectionalview taken on the same line as Fig. 1, and showing corresponding parts on alargei scale. 7 In Figs. 1 and 4 the finger-keys are shown in a different position, as will be more fully set forth hereinafter in this specification. Fig. 5 is a detailed view showing the mechanism arranged on the rear side of the carriage for operating the spacing de vice. 6 is a side view of the same mechanism. Fig. 7 is a sectional view on the same line as in Fig. 1 of the mechanism for operating the type-striking hammer, the said mechanism being shown on an enlarged scale and the link-levers being in a ditferent position from that indicated in Fig. 1. Fig. 8 is a sectional view on the line Y Y of Fig. 7. Fig. 9, is a vertical section on the line a a of Fig. 7. Fig. 10 is an enlarged'longitudinal section of one of the type-receiving compart ments on the line b b of Fig. 11. Fig. 11 is a sectional View of the type-cylinder on the line a c of Fig. 12. Fig. 12 is a side elevation of the type-cylinder 57. Fig. 13 is a partial section and plan on the line 01 d of Fig. 1. Fig. 14 is a front elevation of the moving carriage andpaper-receiving frame thereon. is a section on the line 6 e of Fig. 14. Fig. 16 is a front elevation of the tube 80 and associated parts. Fig. 17 is a section on the line ff ofFig. 13. Fig. 18is a detail view showing the mode of connection between the band 52 and the bar 15.

Similar numbers of reference indicate like arts.

I will first describe the mechanism whereby on the pressure of a fin ger-key a movable type is adjusted in proper place in front 'of the material upon which the character is .to be impressed, and which mechanism,- by continuing its operation, can as the type to be struck by the hammer and moved outwardl y, so. as to produce said impression;

, .1 is the table or bed of the machine, on which are two standards 2. Between the standards 2 extends a curved fulcrum-bar 3, (see dotted lines, Fig. 2,) which passes through holes in the keys 4. In Fig. 2 I show but'two of these keys, respectively, located at the extremities of the circular series, the others being omitted for purposes of clearness. stood, however, that there are in all fourteen keys, four occupying the position indicated by the dotted circles in Fig. 2, and all placed in lines convergingto acommon center. It will therefore be understood that when anyone of these keys is struck by the finger in the ordinary manner of the typewriter-key it will vibrate on its pivot-bar 3. The keys 4 alternate with the keys 65, (to be referred to farther on,) and said keys are separated by washers, (indicated at 5.) p p i The casing of the machine is formed in twoparts, the lower part 6 being secured directly to the bed 1, and the upper part7 resting upon the part6 and also upon the two standards 8, Fig. 1. The part7 is secured in place by the three screws 9, which enter the lower casing-.6, and alsoby the screws 10, which enter the ends of the standards 8. By removing these screws the upper casing 7 can'be separated from the lower casing, so as to--al1owof access to-the interior mechanism. The casing 6 isv open in'front,'as shown at 11, Figs. 11 and'4, so that the keys may extend through it. On the under side of each of the keys 4, and also on the under side of each- Fig. 15

It is to be underkey 65, hereinafter referred to, is a cam pro-' jection 12 and also a pin 13. projection 12 nearest the pin is beveled or in-. clined, so as to form acam-surface. Pivoted at'its middle to a standard 14, rising from the bed 1, is asemicircular plate or bar 15, to which are attached cords 17, which cords are connected to the ends of springs 18, inclosed in suitable casings. It will be understood that when the curved plate 15 is vibrated horizontally on its central pivot it willbe opposed by the action. of one or other spring 18, and that the tendency of the spring will be to bring the plate always back again to its original position. The extremities of the curved plate 15 rest upon curved rails 19, which are supported upon standards 20,- as shown in Figs. 1 and 13.

When a key 4 (ma key is pressed down, the cam inclination on the front edge The side of the 1 of the projection 12 meets the inner side or Q edge of the curved plate 15 and causes that plate to vibrate on its central pivot. If the ous that the plate'15 will be displaced or caused to oscillate over a greater are than when it is acted upon by asimilarly-arranged key, placed at a greater distance from the pivot. Consequently no two of the keys 4 (or 65) will move the plate 15 for the same distance inarc.

cillate in relatively-opposite direction,

This will be As the key 7 key which is pressed down is located just on one side of the central pivot, it will be obvi- It will be understood, how ever,thatthe keys located on opposite sidesof the pivot 14 will'cause' theplate 15 to os- By 1 the greater or less movement of the plate 15 Inc another curved plate 23. Theplate 23 is-supported on a series of. arms 24, (see dotted lines, Fig. 13,) which radiate from the lever-"arm 25, which lever-arm ispiivotedffat26 to a bracket 27 which extends downward-from the frame 1. Consequently when the lower edge of the projection 12 meetsthe plate 21 it forces that plate, and hence the plate 23, downward,and so causes the lever 25 to vibrate on its pivot 26.

At the end of .the lever 25, Fig. 7, is a slotted link 28, into which enters a pin 29 on the dog 30; The dog 30. is made in-two parts, as shown in sectional View, Fig. 9, and from each'part projects a pin or roller 31, each ofwhich pins enters a cam-groove 32, formed upon the faces of brackets 33 and 34.

' 35 is a bent lever pivoted to the bracket 36, which depends from the bed 1. The downwardly-bent end of lever 35 is connected:

by a spiral spring 35* to apin which extends between the lower extremities of the dog-30.- The lever '35 is pivoted between the upper face of the dogs 30, and also on the same pivot between the parts of said dogs is a lever 37, which is pivoted to the hammer-rod 38. .The dog 30 .is provided witha shoulder or; step 39, which is suitably placed so as to be engaged by the teeth of the wheel 40. ,The wheel 40 is supported on a shaft 41, which extends between suitable bearings ll Fig. 3,.

r so carries the wheel around with it.

' the rollers 31 on the dogs 30 to traverse the Between the projection 45 and the end of the opening in the wheel is interposed a spiral spring ,46. The object of this spiral spring is to act as a cushion, so as to prevent the too sudden movement of the wheel 40 and possible disarrangement of the mechanism. The operation of the apparatus so,far described will now. be explained. When the key 4 ispressed down, the plate .23 is de-v pressed and the slotted link at the end of the arm is raised. Assuming the parts to be in the position shown in Fig.1, the effect of the raising of .the slotted ,link 28 is e to cause cam-groove 32, so that the toe or shoulder 39 on the dog 30 is brought into position to be acted-upon ,by the teeth. on Wheel 40, or in the positionof the parts shown in Fig. 1. As

' T soon as the'dog 30 is carried upward by the wheel40fthe levers 35 and 37 arebrought into a horizontal position, Fig. '7. The end, of

the ham'mer-rod38 is thus moved to the right of Fig. 4, and, inasmuch as said rod is pivoted at 47, its upper end, which carries the hammer 48, is brought into contact with one of.

the type. How this hammer operates in con} nectionwit-h the type will be described far theron. As the wheel f40, acting upon the toe 39, carries up the dog 30 said dog travels up to theupperarc'hfof' the cam-groove 32,

and as soon as itreaches this point it is carried over said arch by the action of the spring 35*, and then the dog descends by gravity, its roller followingthe oppositeside of cam-groove 32, and thus resumes its normal position. It will be seen, therefore, that the effect of pressing the key 4 is first to cause the plate 15 to oscillate or swing on its central pivot,

and that the extent of this oscillation will depend upon the position of the key nearer to or farther from the central pivot of the plate that, then, as the keyis pressed down it throws the toe 39 of the dog 30 into position to be acted upon by the always-revolving wheel 40,

and that whenthe dog is thus acted upon it acts upon the hammer-carryinglevel- 3810 cause the hammer 48 to make its stroke. It

will be plain that only one tooth of the wheel been once lifted, is immediately retracted by the spring and does not again assume a I .40 can act upon the dog,becaus e the dog,having position in which, it can be again moved by a tooth of wheelv 40 unless a key be operated,

in the manner described, to throw it into the proper situation. j I have already referred to the projection or pin 13 projecting downward from the keys 4 and 65. This pin, whenthe key 4 (or ispressed down, enters a hole (one of a series) in the plate15, which is suitably disposed to receive it,'as shown in Fig. 4; but it does not reach thishole until after the plate15 has been moved by the projection 12. Of; course when the pin 13 enters the hole in plate 15 plate-15 can no longer oscillate on its pivot,

andtherefore the object of the pin 13 ,is to 5 prevent too. much accidental motion of the plate 15. This might occur if a key were' pushed down too suddenly, so that the plate 15 might, in that case, swing a little beyond the proper point. If, as soon as the, plate 15 is adjusted, the pin 13 entersthe openingand looks it, it will be obvious thatno further motion of plate 1 5 can ensue. I

I will now refer to the type mechanism. Extending upfrom the bed 1 is a tube v49, and surrounding this is a loosetubc orsleeve 5Q.

Formed upon said tube 50 is, a chainor sprocket wheel 51. The sp'rocketchain 52,

, dotted lines, passes over fixed pulleys 53, Fig. I

13, and dotted lines, Fig. 2, and is connected. to the ends of the swinging bar 15 by means of a screw-bolt 53*, as shown in Fig. 18. In'

order to prevent slacking of the chain when the bar.15 oscillates, Iprovide an arc-shaped plate 54, which is carried by said plate 15.by downwardly-depending arms 55, Fig. 17. This curved bar 54 .rests upon a roller 56, whichis .supported on the bed 1. The'ends ofthe chain, .after passing around the pulleys 53,

extendllover the periphery of this curvedbar to theendof bar 15. It will be. understood, therefore, that when thebarl5 is oscillated on its central pivot it rotates the sleeve 50, and

thatlthe extent of rotation of the sleeve 50.

will be in'cither direction proportional tothe arc swung over by the bar 15. P

57 is the type-cylinder. (Shown i an.

horizontal section in Fig. 11 and inelevation in Fig. 12.) This consists of an annular piece of metal or hard rubber-provided with tiers of compartments regularly arranged; I. here .show six of such tiers A B OD E F,Fig. 4.; .Each tier contains fourteen type-chambers.

Each chamber is of suitable size to contain one type58, Fig 10. On eachtypeisformed; a shoulder 61, of suitablesize nearly to fill up the cross-section of this compartmentand ,v

move freely therein. "W1 6 pr jec s-t ou h n p i ei the r of the compartment and into the central space The inner end of the 59. On the outer peripheryofthe type-cylinder 57 .areformed transverse recessesto re- 7 .ceive plates 60 of metal, which extend in front of the type-compartments. The outer ends of I Y the types passjthrough said plates, as shown 'in Fig. 11.

Surrounding each type and interposed between its ,shoulderand strip 60 is a spiral spring 62. As shown in Fig. 4, the 03 1- inder57 is so disposed that the hammer 48 may act on the lower tierof type. Extending downward from the type-cylinder 57 is a sleeve 63, which fits over the tube 50, and this sleeve is shown in Fig. 4 in its highest position upon said tube 50. When said sleeve 63 reaches itslowest position,.it rests upon the ring or. collar 64, as shown in Fig. 1.

I I g g It will be apparent, therefore,-that by raising and lower ing the sleeve 63, and hence the type-cylinder 57, vertically upon the tube50, I may bring either one of the diiferent tiers of type A B C D E F into position to be struck by the hammer 48.

Returning now to Fig. 1, the type-cylinder,

(shown at 57 as has already been stated, is in its lowest position and the hammer 48 will operate upon the type in the tier marked A;

. and itis to be understood, that for the purpose of operating these type in tierAthekeys marked 4 only are to be used. I have shown but fourteen type in the tier A, and hence in order to make use of the entire alphabet it will be necessary to use the type in the next following tier, as B. For this purpose I use the set of keys marked 65,which are also pivoted on the fulcrum-bar 3 and which alternate with the keys'4.

These keys are constructed in a precisely similar manner to the keys 4 -that is, they have the downward'pro jection 12 and cam 13, which acts upon the anismwill be more particularly referred to farther on. Also depending from the inner side of the case 7 is a bracket 7 O, to which is pivoted two swinging bails -71 and 72. On the bracket is a fixed stop 7 3, and'on the bail 71' is a toe or. shoulder 74, which meets the stop 73, and in this way the bail 71 is prevented from falling below the horizontal po-j sition. (See Fig. 1.) On the bail 71 is a stop 75, which stop is met by the swinging ba-i172, so that the upward motion of said bail is thus limited. In the transverse portion of the bail 71 is arranged a latch 76, which is connected by a link 77 with the bail 72. The keys 65 extend under andact upon the bail 7 2. The

keys 4 do not. Extending from the sleeve 63 is a yoke7 8*, to which is secured an arm 78, which" carries a vertical rack 79. This rack passes up through a tube and has side proje'ctions 81, which pass through slots 82 in said tube. Said tube is supported from the ,upper case 7. Secured to rod 68 is aspring toe or stop. 83, which acts upon the pivoted bell-crank lever 84, and the lever 84 operates the sliding spring-bolt 85. In the sleeve 50 is a slot which receives said bolt, so that when the bolt is in the slot the sleeve ,50 is locked f and prevented from turning.

I will now describe the operation of the above-set-forth mechanism, vthe parts being assumedto be in the position indicated in Fig. 1. When either a key 4 or a key 65 is pressed down, the bail 67 is raised. The rod 68 is thus pulled, the bell-crank lever 84 turned,

and. the bolt drawn out of the sleeve 50, so that said sleeve, andvhence the type-cylinder 57, is rendered free to turn. If one of the keys 4 only be operated, then the results already described as following the operation of that key will take placethat is to say, the plate 15 will beswung and a type belonging to the uppermost tier A'will be put inplace in front of the hammer, and the hammer will be operated to cause it to strike the rear end of said type. If, however, a key 65 be pressed,

action upon the bail 67 it will unlock the type-cylinder in the manner just described. By reason of its action on the bail 72 it will throw out the bolt 7 6,and then when the bail 9. then the rear end of that key will act upon; both' the bails 67 and 72. By reason of its 72 meets the stop 75, the rear end of the key,

continuing its upper movement,'it will raise the bail 71 but the throwing out of the bolt 76 has brought said bolt into engagement with the rack 79, and hence when the bail 71 is lifted the rack '7 9 is lifted with it, and as the rack 79 is connected to the sleeve 63, that sleeve, and hence the type-cylind er 57, is carried to such a distance as will bring the second projection 12 on the keys 65 then acts upon the plate 1 5 to rotate the cylinder, so as to bring I the type corresponding to the .key in front of the hammer, and also to cause the hammer to strike in the manner already described in connection with keys 4. It will therefore be understood that, for example, the keys 4willbe used to print the first fourteen letters of the alphabet and the keys 65to print the remaining letters, and that when the keys 4 are touched'no vertical displacement of the cylinder 57 will ensue, and that when thekeys 65 are o'perated'they not only control the striking mechanism and set the cylinder, but also raise the cylinder a distance equalto 1 that between two tiers of type, and in this way bring'the second tier. B of type into position in front of the hammer. 7 I will now describe the devices for setting tion other tiers of type, as (3v D E F. Pivoted in the case 7 at 86, Fig. 4, is a single key 87, the rear end of which extends to one side of the, tube 80 and beneath the projection 81 on the rack 79.

I 25 the type-cylinder 57 so as to bring into posi- 13o. Pivoted at 88 in said case '7 is another single key 89, which extends under 5' tier of typeB in front of the hammer The the projection 81, extending through the slot on the other side of the tube 80, Fig. 1-6.

. As the length of the key 87 from itsrear extremity to its pivot 86 is much greater than the length of the key 89 from its extremity to its pivot 88, it will be obvious that when the key 87 is pressed down'the rack 79 will be lifted a much greater distance than s tier of type F, as shown in Fig. 4, key 87 when the key 89 is pressed down. Now the length of the key 87 is so arranged that'when said key is pressed down it will raise the rack 79, and hence the cylinder 57, a distance equal to that between tiers A and E of the type. If, on'the other hand, the key 89 is pressed down, this will raise said cylinder 57 a distance equal to that between tiers A and O of the type. Oonsequently,supposing the parts .to be in the position shown at Fig. 1 audit is desired to bring the cylinder in such position as that the hammer 48 will act on'the lowefst would then be pressed down, and in this way the tier E of type would be brought opposite the hammer. automatically in place by the spring slipping over the projection on the upper end of the curve of the guide-bar91, which bar extends down from the key through the upper part of the case 6. Key 87 is thus held in place and the operator would then press key 65, which, acting on "bail 71 in the manner already described, would first raise the typecylinder 57 for a distance equal to that between the tiers of type E and F, and in this way the tier F would be brought opposite the hammer, as shown in Fig. 4. The rack 79 would then be supported by the latch 7 (Sand the projection 81 on said-rack would necessarily be above and out of contact with the end of the key 87.

It will be readily understood without further explanation how by suitable manipulations of the keys 87 and 89 and then of the keys 65 or 4 any of the tiersA', B, O, D, E,

and-F of type may be brought into to be acted on'by the hammer 48.

I will now describe themechanism for moving the paper or other material upon which position 'the type are to produce their indentations.

This is done by means of the lever 69, which, as already described, is operated by the rod 68, secured to the bail 67, which bail, it should be remembered, is moved by all of the keys 65 and 4. I The rod 69 is pivoted to bracket 33 at 92*. The end of the rod 69 is forked, and in the fork is received the lower extremity of a .bar 94, Fig. 3. Upon one side of said bar are formed rack-teeth, Fig.5, which engage with a pinion'95, which is supported on the rearside of the carriage 96 in a bracket 97. (See Figs. 1, 3,and 5.) 98 is the pinion-shaft, which terminates in agear 99, this gearbeing placed just inside the rear face of the supporting-carriage 96, Fig. 1. Surrounding said pinion-shaft is a spring-which acts upon a fixed abutment on the bracket 97, and also Key 87 would then be locked on the pinion-shaft is a ratchet 100, (see dotted lines, Fig. 5,) which acts upon a pawl 101, which pawl acts eration of this spring is to cause the pinion normally to turn in one direction. 102 is a bent bar, also having on its edge rack-teeth adapted to engage with pinion and provided on its horizontal portion with two rollers 103 on opposite sides of the bar 94. The bar 102 is pivoted at 104. Extending down ward from the upper flange of thecarriage 96 are two brackets 105 and 106, to which are pivoted levers 107 108, which carry at their ends rollers which bear against opposite sides of the bar 94 The spiral spring extends from the pivoted lever 108 to thehook end of the bracket 106. A similar spiral spring 109 extends from the pivoted lever 107 to the upper flange of the carriage 96. As the rod 94 .108, acted upon by spring110,is to crowd the upon the pinion 95. The op- 5 moves downward the tendency of the lever rod 94 against the pinion 95, and so cause engagement of the rack-teeth of rod 94 with'the teeth of pinion 95, arid simultaneously it moves rod 102, so as to throw that rod to the left and out of engagement with the pinion.

At the same time the lever 107 drops down thelevers107 and 108 assume the positions shown in Fig. 3 and the rod 94 moves "away from the pinion 95. At the same time the rod 94'draws the rod 102 into engagement with the pinion, and thus the pinion is locked in place until the rod 94 makes another downstroke,when the foregoing operation is repeated. The carriage 96is provided with a dovetail slide 111, which enters ways 112 on the bed or table 1. Extending upward from "said carriage is a fixed nut 113, Fig. 1. Also extending upward from the table 1 are brackets 114, inwhich brackets is j ournaled a screw 115, which is turned by the hand-wheel 116. By turning the hand-wheel 116 the carriage 96 may be caused to slide in its ways, and so brought nearer to or farther from the type-cylinder 57. On top of the bracket '114is fastened a fixed pointer 117, and I may layoff the rim of the hand-wheel 116 in any convenient divisions, so that the pointer 117- will show the extent to which the Wheel has been turned, and thus the extentof movement of the carriage may be nicely graduated andobserved. p

I will now describe the device which holds the paper or other material upon which the type are to produce their impressions. The

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front view of this device is shown in Fig. 14.

118 119 120 are the vertical members and transyerse member of a frame of light thin metal, such as steel. In the low erport ion of thisframeis journaled a roller 121'. About half-way'up said frame is the rack-bar 122, .7

and finally on. the upper end ofthe members 118 119 is journaled another roller 123, which is supported in brackets 124. Between. the rear endof the brackets 124 extends a bar 125, Fig. 3, and depending from this bar is a small bracket 126, which carries a roller 127.

j The roller 127 runs on a rail 128 on the upper surface of the carriage 96. On the lower front side of the carriage 96 is arranged a.

. The roller 121 enters and freely moves in a The operator, therefore, has only to press circular chamber 130 in the carriage 96. The rack-bar 122 enters and freely moves in a similar but smaller chamber 131, extending across the face of the carriage 96. Therefore theframe 118 119 120 is free to slide longi tudinally crosswise the face of the carriage 96.

The inclosing-wall of the chamber 131, which receives the rack-bar 122, is slotted on its under side, so that the pinion 99 may project therein and engage with the rack-bar 122. A

handle or knob 132 is provided for convenience in turning the roller 123.

The spacing-key v133, Fig. 2, is a simple lever not provided with the downward projection 12. It is pivoted upon the bar 3. Its rear end acts upon the bail 67 to raise the rod 68, and thus through the lever 69 to operate the bar 94 in the manner already described.

Referring to Figs. 1 and 4, beneath the pro jections 12 on the keys and 4, is disposed a curvedbar 134, which is supported upon two bent rods, one of which is shown at 135,

which extends down between two fixed rollers 136and is pivoted to the bar 23=at 137. On the projection 12 of the keys 4 and 65 isa hook or shouldered portion 138. When a key is raised, asshown in Fig. 1, the bar 134 stands partly under the bar 21; but when the key is depressed the effect of the rollers 136 upon the bent rod 135 is to move the bar 134 to the left of the drawing, so that the hook 138 on the key engages with said bar 134, as shown in Fig. 4. By this time, however, the wheel 40 is acting on the dog 30, and hence the power from said wheel is communicated along the lever 25 24 to draw. down the bent rod 135 still farther, and thus to insure the upward movement of the rear ends of the keys 65 and 4 sufficiently to move the bails upon which they act to the full necessary upward extent.

down a liey sufficiently to cause this locking of the hook 138 and bar 134, and the motor driving the machine does the rest of the work. In this way the manual labor of operating the keys is greatly diminished.

I claim- 1. The combination of the tubular fixed support 50, the annular cylinder 57 having a sleeve 63 received upon said support, alongitudinally-movable type radially disposed in said cylinder, thevibrating hammer 4838, disposed in the central space 59 within said said type longitudinally to move said type,

0 cylinder and operating upon the rear ends of and mechanism for moving said sleeve-63 in.

a longitudinal direction upon said support 50, substantially as described.

2. The combination of the tubular fixed support 50, the annular cylinder 57, havinga sleeve 63 received upon said support,alongi7 tudinally-movable type radially disposed in said cylinder, a vibrating hammer 48 38, disposed in the central space 59 within said cylinder and operating upon the rear end of said type longitudinally to move said type,

arm 78 on said sleeve 63, rod 79 on said arm, having side projection 81, and pivoted fingerk'ey 87, having its rear end in lifting proximity to said projection 81, substantially as described. l

3. The combination of the tubular fixed support 50, the annular cylinder 57 having a sleeve 63 received upon said support, two longitudinally movable type radially disposed in said cylinder, but not in the same plane, at right angles to the axis of said cylinder, a vibrating hammer 48 38, disposed in the central space 59 within said cylinder and operating upon the rear ends of said type longitudinally to move said type, arm 78 on said sleeve 63, rod 79 on said arm, having two side projections 81 and 81*, and pivoted finger- keys 87 and 89, having their rear ends, re

spectively, in lifting proximity to said projections 81 and 81*, substantially as described.

4. The combination of the tubular fixed support 50, the annular cylinder 57, having a sleeve 63 received upon said support, alongitudinally-movable type radially disposed in said cylinder, a vibrating-hammer 48 38, disposed. in the central space within said cylinder and operating upon the rear end of said type longitudinally to move said type, arm 78 on said sleeve 63, rod 79 on said arm, having side projection 81, pivoted finger-key 87, having its rear end in lifting proximity to said projection 81, and a locking device 90, for holding said key in depressed position, substantially as described.

IIO

5. The combination of the rotary annular tion from said key when depressed, the

rotary wheel 40, pivoted levers 24 25, having one end in engaging proximity to said wheel, the key 65, and a locking device connecting said lever to said key 65, the aforesaid parts 1 arranged and operating that When said key 65 is depressed for a certain distance it engages lever. 24 25 and is carried farther down,

thereby elevating said cylinder 57, substantially as described.

6. In combination with a support 50, a

' type-cylinder 57, vertically nnovahle thereon,

and the rack-bar 7 9, connected to said cylinder, the pivoted bails 71 and72, the latch v76.

in bail 7luand link 77, connecting said latch to bail 72, and the pivoted finger-key 65, the said parts arranged and operating that when the key 65, is pressed downitelevates the said bails, causes the latch to protrude and engage with rack-bar 79, and then, oontinu- IO ing its downward motion, raises thetype-eylinder 57 upon its support 50, substantially as described. I

WILLIAM JAMES HOWELL.

WVitnesses:

WILLIAM D. 'ETTLEY, GEORGE O. LAY.

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