US929259A

US929259A - Type-writing machine.

Info

Publication number: US929259A
Application number: US30305606A
Authority: US
Inventors: Herbert H Steele
Original assignee: MONARCH TYPEWRITER CO
Current assignee: MONARCH TYPEWRITER CO
Priority date: 1906-02-26
Filing date: 1906-02-26
Publication date: 1909-07-27
Anticipated expiration: 1926-07-27

Description

H. H STEELE.

TYPE WRITING MACHINE.

APPLIGA'IION.1ILED FEB. 26, 1006.

Patented. M 27, 1909.

3 SHEETS-SHEET 1.

Hi2 AFTEIRNEY H, H. STEELE. TYPE WRITING MACHINE. APPLICATION FILED FEB 26, 1906. A

Patented July 217," 1909;

a SHEETS-SHEET 2.

I NVENTUF? I vx/wwcssca 5%Z/Lw' ILH. STEELE.

TYPE WRITING MACHINE.

APPLICATION FILED FEB. 26, 1906.

Patented July 47, 1909.

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SSHEETS-SHEET 3.

ENVENTUR wrufim m g g .x wE

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WETNEIEEEEE Hrs ATTQRNEY UN t i 'i d i l ifi PriZiENlf @FFMJE HERBERT H. STEELE, OF SYRACUSE, NEW YORK, ASSlGNOR- TO THE MONARCH TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, ACORPORATION OF NEW YORK.

TYIE WRITING MACHINE,

Specification of Letters Patent.

Patented July 2'7, 1909.

Application filed February 26, 1.906. Serial No. $303,056.

To all whom it may concern:

Be it known that I, Hennnnr H. STEELE, a citizen of the United States, and resident p ,w or oyiacuse, in t it county 0 none aga and State of New York, have 1nventcd-certam new and useful improvements in Type li ritmg li ilachnies, of which the tollowmg 1s a specification.

This invention'rolates to improvements in carriage-remrding devices for typewriting machines, and consists of the features of construction and. combinations and arrangements of parts which are hereinafter de scribed and specified in the claims.

in the accompanying drawings in which like reference numerals designate like parts in diiferent'views, Figure 1 is a rear and sectional elevation of the frame and parts oi? the mechanism of a hiionareh typewriting machine to which CZIl'IIZQQ-L'Ellttl'tli11 ana ratus embodying the invention is applied; Fig. 2, a vertical section, on the plane indicated by the broken line near the of Fig. 1, of said frame and parts 01": the'meelranism of the machine,-the sectional plane being seen from the right side of the machine. Fig. 3, an enlarged vertical section of the upper reanpart of the machine, the section being at right angles to the axis of the platen, and the sectional plane being seen i rtnn, the left. side oi. the machine; Fig. '-i, a plan if a fragment of the top-piatc and ot a hollow device mounted thereon which forms part of the carriage-rotarding apparatus; Fig. 5; a or :cction oi said hollow device and another c-ot perative rotary device confined therein; Fig. (3, a longitudinal row; and Fig. 10, a view of the exterior of said hollow device developed.

7 Although the drawings illustrate this invention applied to a Monarch machine, it is to be understood that it .is also applicable to numerous other machines, including such as are called under-stroke machines, well as visible-writing machines.

The carriage-retardi11g mechanism or epparatus in which the invention is embodied is attached to the top plate of the machine near its rear edge and on the right, preferably, of a vertical plane containiiig the axis .oi" the escapen'ientpinion. Thc frame of the machine is composed of the base 1 and four posts 2, only three of which are shown, and the top plate 3. On the back part of the top-plate are two standards 4 which are fastened to the top-plate and to which upper and lower guide-rails 5 and (3 are attached by screws 7, these guide-rails having in them grooves 8 and 9 extending throughout the length of the rails; The carriage 10, in which is mounted the platen 11, has formed on it

grooved guides

12 and 13, which extend from end to end of the carriage, the grooves i l and 15 o f these guides forming with the grooves 8 and 9 of the rails 5 and (3, ball or roller channels in which are shown

anti-friction balls

16, 17. The carriage is thus supported by the rails and 6 and is movable on the balls in opposite directions over the top-plate 3; The

guides

19 and 13 are connected together byvwebs l8, and between these guides extend arms 19 which are pivoted to the ends of the carriage, and to whose rear ends are atlixed the carriage rack 20 which is movable up and down on the pivots 21 of the arms 19. SpringsQiZ, acting on the arms of the rack, tend to keep the rack in the position in which it is shown in Fig. that being its normal. position.

The ra k 20 normally engages a pinion 23 which fast on a shaft, having a bearing in :1 bracket 24-, aitixcd to the top plate 3, and

on the rear end of this shaft is an escapement wheel 25, arranged to co -act with the feeddo'gs 2-6 and 27 (shown in dotted lines in Fig. which are mounted on a dog-rocker 28, whose rock-shaft 29 is pivoted at its ends between lugs on a bracket 30 ai'fixed to and extending downward from the top-plate 3. On the rock-shaft 29 is a spring 31 which tends to keep the steppingdog 27 in engage ment with a tooth of the escapemcnt wheel An arm 32, fast on the dog-rocker, extends in front of the rock-shaft 29, and to. the front end of this arm is secured a link 33 which extends downward therefrom to the universal bar of the machine. Whenever the "universal bar is actuated by depressing a character-key or space-key, the front end of the arm 32- is drawn downward lav the link 33, the,stepping dog 27 is swung forward the rod 37, and on the rod holdingdog 26 is moved into engagement with'the' escapement-wheel, and when the universal bar rises after the key has been released, the stepping dog 27 reengages with the escapement wheel and the carriage advances a letter-space distance. But if desired a reverse-feed escapement may be used instead of that above described.

To the standards l are rigidly attached rearw rdly extending arms PA, in, which a stop-bar is journalcd at its ends. On the right end of this stop-bar, outside of the adjacent bracket 34, is a crank-arm which normally extends both forward and upward from the stop-bar and to which is pivoted at its front end a rod or link 3'7, which extends downward from the crankarm, through the top-piate and into the base 1 of the machine. A collar 38, having on it a, projection 39, is fastened by a screw to 37, between the collar 38 and the part 41 of the base, is a coil-spring T2 which presses upward against the collar, and on the rod 37 above the topplate 3 is a collar 43 which is fast onv the rod. The collar 38 is so attached to the rod '37 that the projection 39 of the collar extends forward from the collar and rod. The

stop-bar 35 has cut in it on opposite sides slots or recesses 44 at letter-space distances adjustable on the bar, each "tabulator-stop being formed to engage a recess at the back of the bar and another at the front of the bar. Each tabulator-stop has a lug l6 which extends forward and upward from the body of the stop secured to the stop-bar, when the bar is in its normal position, in which it is ordinarily held by the upward pressure of the spring, 4-2 against the collar 38 0nthe rod 37. A stop 47, which is rigidly-attached to the back of the carriage 10 about midway between the ends of the carriage, extends backward neariy to the stop-bar 35, its rear end being out of alineinent with the lugs 4&6 of the tabulator-stops when the stop-bar is in its normal'position, and then being movable by the carriage past the stops 45' and under the lugs 46.

The rod 37 ispivot'ed at its lower end to a lever d8, whose fulcrum is a screw 49 passing through its front end and into a b ss 50 formed on the frame of the machine.

' this lever is an upwardly extending car 51 in which is a slot 52. A key-lever 53, having on it atabulator key 54, is pivoted at its rear end by a screw 55 to a lug 56 formed on the under side ofthe roof 4-1 of the base ,ZKl 58 near its front end. A pin 59 fixed on the key-lever 53 extends through the slot 52 in the car 51 of the lever -18. The con-strum tion is such that when the key is depressed the rear end of the lever 48 is forced downward and the link I37 rocks the bar 35, bring ing the lugs 4H?- into the path of the stop 4?.

A lever having arms (3t)----( t is pivoted by a shouldered screw (32 to :1 lug; 3 on the under side of the top-plate ii, and on the screw 32 is a coil-spring (3-1- which bears at one of its ends against the lug and at its other end against the lower edge of the arm (30 of the lever, this arm of the lever extending in front of the rod 3'7 and under the projection 239 of the collar 2-58, and having on its upper edge a stop 5 which makes contact with the under e of the top-plate when the lever in its normal position, where the spring (34- tcnds to keep it. A lever substai'itially the same as this has been used in the Monarch machine to actuate a rack-lifting device, operative to raise the carriage rack out of engagement with the escapementpinion, and thus to release the carriage from the control of the escapement. Since, however, a part of the carriage retarding mechanism herein shown is operative through the lever (30-431 to lift the carriage-rack from the pinion 23, the lifting device heretofore employed is not necessary in a machine provided with this carriage-retardirig mechanism. i

The retardinganechanism proper consists of pneumatic apparatus in the nature of an air-pump, said apparatus comprising two cooperative devices, one of these being arranged to be rotated by the carriage, and one of them containing an air-chamber whose wall surrounds and makes contact With the other device. The pneumatic apparatus is preferably constructed and arranged as it is shown herein, although it is apparent that for this particular apparatus a modification thereof might be'substituted. The rotary device of the ap nlratus shown in the present instance is ooniined in the other device. The latter consists of a hollow cylindrical part (H3 having on it an extension (5? on which are formed bosses G8, the cylindrical part 66 being closed at its rear end by a screw plug (39. This device is pivoted by shouldered screws 70 to and between the sides 71 of a support whose base 72 rests on the top plate :1 and is attached thereto by a screw 74-, the screws 70 extending into the bosses (i8 and the whole device being movable on the axis which coincides with the axes of the screws 70. To the extension (37 near its front, end a yoke 75 is pivofd by pins 76, this yoke being on the uppcrcnd of a link YT-which extends through the top-plate and is pivoted at its lowcr'end to th arm (31. of the lever 60-G1. In the extension (37 of this pivoted device is a round hole T8 in which is a shaft CID :25 drical surface of the part (36 of'the other 479, the extension 67 forminga bearing for this shaft whose axis is above and parallel the escapeinent-pinion 23, and the hollow device described is in the position shown in Fig. 2, this being its normal position. It is movable from this position by the lever 60(i1 act-ing'on it through the link 77 and yoke75 to. the position shown in Fig. 3, and

when it is thus moved the pinion 80 engages with the carriage-rack and lifts this rack out of engagement with the escapement-pinion,

so that the pinion 80 and shaft 7 9 niaythen be rotated by the action of the carriage rack. The rotary device includes a cylindrical part 81 WlHCll 1s contained in the cylindrical part 66 of the other device and which is fast on the shaft 79, its axis coinciding with that of the shaft, and its cylindrical surface being tangent to the internal. cylindevice, and these cylindrical surfaces receding from each other on opposite sides of the line along which they meet. The ends of the cylindrical part 81 of the rotary device fit against the ends of the cylindrical part (36 of the other device. The rotary cylinder 81 has two deep slots 82 cut therein longitudinally thereof, said slots being on opposite sides of the axis of the cylinder, parallel to each other, and opening on opposite sides of the cylinder. In each of these slots there is seateda' blade orwing' 83, of a length essential that. each wing 83 substantially equal to the length of the cylindent the wing being adapted to slide in and out as the cylinder is rotated. Said wings are pressed outward to keep their outer edges constantly pressed against the inner cylindrical surface of thepa'rt (36 by coll-springs 84: contained lll holes 85 drilled in the part 81, the holes extending through one face of each slot but not through the other face, as appears in Fig". 7, for it is should so fit one face of 'theslot'containing the wing as to prevent air from passing freely from one "side of the wing to the other. In the; cy

lindrical wall of the part 66 are two small air-passages or ports 86, two others 87 larger thanthe passages 86, and two others 88 larger than the passages 87, these passages I being arranged in pairs and one of each painJocing on one side and the other on the opposite side of the plane which contains hotlnthe axisof the-shaft 79 and the line along which the cylindrical part 8i of the rotary device meets the internal cylindrical surface of the port 66 of the other device. A thin endless bai id or sleeve 8.9 surrounds and is secured on -the part 66 of the'hollow device between the flange 90 at the front end. thereof and a siinilar flange 91 formed on the plug (39. This sleeve closely fits the external surface of the part 66 but is inovable on it. roughened or knurled to enable it to be easily turned with the hand. In this sleeve are three pairs of holes 93, ill. and D5, and on the sleeve close to the front edge are marks designated 0 it 2 and and on the flange 90 is a-shnilar mark 96, 'these marks being; so. arranged that when the mark Olregisters with the inark 96 all of the airpassages in the wall of the cylinder (iii are closed the sleeve 89, and that when the mark l registers with the nark 96 then the holes 9 3 in the sleeve 89 reg ster with. the holes 86 in the hollow cylinder,and that when the mark 2 registerswith the mark J6 the holes Min the sleeve register with. the holes 87 in the cylinder, and that when the mark 3 registers with the mark 96 the holes in the sleeve register with the holes 88 in the cylinder, and that only two of the holes in. the sleeve reg 'ster with holes int-he cylinder at the same time. r

The machine contains a spring drum 97 Portions of the sleeve arethe latter lever and the rod 3'? on the crankarm 36, the lugs 46 on' the tabnlator-stops .45 being moved downward'into alinenient with the stop 47. on the. carriage. At the same time the projection on the collar 38 fixed to the rod 37 forces downward the arm 60 or the lever 60-61, and the link 77 is raised by the arm 61 of this lever, so that the device (Sh-67 is moved on its pivotal axis to the position in which it is shown in Fig. The

carriage-rackthen engages the pinion S0, and is out of engagement with the escapeinent-pinion from which it has been raised by the action of the other pinion on the rack. The rod 37 is ,drawn downward until the collar all meets the top-plate 3, and while this collar is held by pressure on the tabulatorkey in contact with the top-plate, the lugs 4-6 on the st ps 45 are kept in the path of the stop 4-7, and the device 66-437 and the pinion 80 and the a. fringe-rack are kept in the positions shown hrFig! 3. As soon as the rack 20 is thus disengaged from the escapement-pinion the carriage is drawn to ward the left by the spring-drum 9?, and the pinion 8(),'shaft 79 and the rotary device contained in thehollow cylinder 66 are turned together on the aids, the shaft by pas.

the action of the rack 011 the pinion 80. The carriage continues to travel and to so actuate said rotary device until the stop 47 meets the lug it of one of the ta'bnlator-stops 45. Then the talmlator-hey is released where upon the key and stop-bar are restored to their normal positions by the springs 57 and t2, and as the collar on the rod 37 rises, the spring (3-1- restores the lever Gtl--6l to its normal position, the front end of the device oc -c7 and the pinion 80 being drawn down ward by the link 77 to the positions shown in Fi 1, and the carriage rack descends to tho 'apenicnt-pinion 2b with which it reengages just before the talmlatorstop leaves the stop 47.

heir the rotary device of the pneumatic apparatus is actuated as descrihethair is compressed in front of and rarefied behind e ch of the wings 83 during everyrotation of the shaft 7 9, and the compressed air reacting on the wings otljers a yielding resistance to the movement of the carriage. The

'arriarge is retarded most when all of the

airpassages

86, 87, 88 are closed, it then being necessary for the an. to leak from one side of each wing to the other as the outer edge of the wing approaches and recedes from the line along which the cylind 'ical surfaces oi the parts and Si meet, and since the cylindrical part and wings oi the rotary-device tit closely against the end and cylindrical -'all of the other device, the air leaks so slo 'ly past the wings that, it all of the air cs are closed, a strong and slowly yielding resistance opposes the motion of the carriage. the air-passages 86 are opened, air is forced through one of them from the .c'lindcr no. and air enters this c linder through the other, and the motion of the car-- riege is then less atiectcd than it is;.uuder the conditions previously stated. By open in the airnusagos Si or SS the resistance eta-mi to the carriage may be further rc din-ed. Air issues from and enters the c yl iiitici' in; through the p: iges 8i and 88 as;

' it ones through the passa es S6, anti obviuusly air is compro d loss it the passages as are opt-n than it is it the passage.--; S? are open, and lo s it the passag siSi are open than it. is it the pa sages 8t) are-open, so that;

the larger the opened pa sages are the the carriage retarded.

l3 means oi the apparatus described the carriage may l c ,so rl tance it may travel tree from the control of the. tSCtlPtiHtlli-l1100ll21lllSlll, as to prevent the 'nun-hintfrom being injured and to render the shock and noise slight when the carriage is arrested by tabulator-stops or other similar devices.

It is to he understood that the invention claimed herein may be embodied in mechanism (littering indetails of construction or arrangement (it-parts from that which has ardcd, whatever disvbeen specifically described aoove, and that it may be applied to machines containing denominational or decimal tabulating 1nechanlsm, instead of the particular tabulating mechanism shown herein, or other forms of c( liinn1-spa(:ing mechanism.

While the rotary device herein shown and described includes a pair of wings, it will be seen that the retarding appa 'atus would be operative, although its action would be more impulsive, if one of these wings should he removed from it, and that a single wing extending through the cylindrical part 81 of the rotary device and hearing at its outeredges against. the wall of a chamber containing said device, might be substituted for this pair of spring-pressed wings. Moreover, the wall of the hollow device might have in. it only a single a'inpassage through which air could issue from the air-chamber near the line along which the cylindrical surfaces ofthe two devices meet, and on that side of the line on which the air is compressed, for enoughair would enter the hollow part through such a passage and leak past the wing or wings to render the apparatus effective to retard the carriage to some extent. 1 f

\Vhat I claim as new and desire to secure by Letters Patent,

1. In-a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two cooperative air-compressing devices, one of these devices being arranged to be rotated by the carriage, and one of them containing an air-chamber whose wall surrounds and makes contact with the other device at the ends and from end to end of each of said devices, said apparatus also comprising means adjustable by hand and effective to vary the resistance exerted on the carriage.

2. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two cooperative air-compressing devices, one of these devices being arranged to be rotated by the carriage, and one of hem including .wing movable inward and outward on the body of the device and in contact with the other device, taining a air-chamber in which the other device is confined, said apparatus also comand one of said devices con-.

prising means adjustable by hand and effect,-

'tion with the carriage, of pneumatic rarriage-retarding app ratus comprising 11 rotary device and another device coiLperativc therewith to compress air, said rotary-device being arranged to be rotated by the carriage, and the other device containing an air-chamber whose wall surrounds said rotary device and makes contact therewith at the ends and from end to end of each of said devices and contains an air-passage communicating with said air-chamber, said ap niratus also comprising means adjustable by hand and eifcctive to obstructthe flow of air through said passage.

5;. In a typewriting machine, the combination with the carriage, of pnemnatic carriage-retarding apparatus comprising a rotary device and another cooperative device, said rotary device being arranged to be rotated by the carriage, and one of said devices containing an air-chamber and an. air-passage leading from said chamber, the wall of the chamber surrounding the other device and making contact therewith at the ends and from end to end of each of said devices.

(3. In a typewriting machine, the combina tion with the carriage, of pneumatic earriage-retarding apparatus comprising a rotary device and another cooperative device, said rotary device-being managed to be retated by the carriage, and one of said devices containing an-air-chamber and airpassages of diti'erent sizes leading from said chamber, and having means for closing some or all of said air-passages.

T. in a typewrit-ing machine, the combination with the carriage, of pneumatic car riaretarding apparatus comprising two cooperative devices, one of these devices being arranged to be connected with and actuated by-the carriage and one of them containing an air-chamber and air-passages of difierent sizes leading from said chan'iber, the 'wall of the chamber surrounding and making con tact with the other device, and the device coi'itaining said chamber having on it means for closing some or all of said air-passages.

8. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising a rotary device and another cot perative device, said rotary device being arranged to be rotated by the carriage, and one of said devices containing an air-chamber and air-passages of different sizes leading from said chamber, the wall of the chamber surrounding and making contact with the other device, and

the device containing said chamber having on it means for closing some or all of said a ir-pz-uesa 7 9. in a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus compr ising two coiipera tive devices, one of these devices containing an air-chamber, and the other being confined in said chamber and including a part with a cylindrical surface which makes coi'itact, along a straight line with the wall of said chamber and which is out of contact with said wall on opposite sides of said straight line, and one of said devices being arranged to be connected with and actuated by the carriage.

10. In a typewriting iachine, the combination with the carriage, of pneumatic carriages" 'ding apparatus comprising a rotary de ice and another cooperative device, said rotary device being arranged to be rotated by the carriage and one of said devices including a part which has a cylindrical surface, and the other device containing an airchamber in which the device with said cylindrical surface is confined, said cylindrical surface making contact along a straight line with the wall of said chamber and being out of contact: with said wall on opposite sides of said straight line. I I

11. in a typewriting machine, the combination with the carria e, of pneumatic carriage-retarding apparatus comprising a rotary device and anothercoiiperative device, said rotary device being arranged to be rotated by the carriage, and one o'i flsaid devices including-ea part which has a cylindrical surface, andthe other device containing an air-chamber in wliichntl ie device with said cylindrical surface is confined, said cylindrical surface making contact along a straight line with the wall of said chamber and being out of contact with said-wall on opposite sides of said straight line, and the wall of said chamber having in it aiivpassages coinniunicating with said chamber on opposite sides of the "plane containing said straight line and the axis ofsaid rotary part.

19. in a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus compris ng two ccope 'ative devices, one of these devices containing an air-chamber, and the other being confined in said chamber and including rela-. tively movable parts, one of which has a cylindrical surface which makes Contact along a straightline with the wall of said chamber and which is out of contact with. said wall on opposite sides of said strai ht line, and one of said devices being arranged to be rotated by the carriage.

13,111 a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatuscomprising a rotary device and another cooperative device, said rotary device being arranged to be 'rotated by the rr'iage, and one of said devices including a slotted part which has a cylindrical surface and including a wing movable inward and outward m the slotot' said slotted part, and the other device containing an airchamber in which the device including the slotted part is confined, said cylindrical surface making contact along a straight line wlth the wall of said chamber and being out ct contact with said wall on opposite sides of said straight line, a d the wall of said chamber having in it air-passages communicating with said chamber on opposite sides of the plane containing said straight line and the axis of said rotary device.

14. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two cooperative devices, one of these devices being arranged to be rotated by the carriage and one of them including a pair of springprcssed wings movable inward and outward on the body of the device andin contact with the other device, and one of'said devices containing an airchamber in which the other device is confined.

15. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two coiiperative devices, one of these devices being arranged to be rotated by the carriage, and one of them including slots and a pair of springpressed wings arranged to slide in said slots, and the other containing an airchamber whose wallsurronnds and makes contact with the device including said wings.

16. In a typewriting machine, the combination with the carriage, of pneumatic car- :rizwe-retardin anaratus comprisin two D b I;

cooperative devices, one of these devices con taining an air-chamber. and the other being confined in said chamber and including a slotted part with a cylindrical surface which makes contact along a straight line with the wall of said chamber and which is out of contactwith said wall on opposite sides of said straight line and including a pair of spring-pressed wings movable inward and outward in the slots of said slotted part, and one of said devices being aranged to be rotated by the carriage.

17. In a typewriting machine, the com bination with the carriage, of pneumatic carriage-retarding apparatus comprising two cooperative devices, one of these devices containing an air-chamber, and the other being confiner said chamber and including a slotted part with a cylindrical surface which makes contact along a straight line with the Wall of said chamber and which is-out of contact with said wall on opposite sides of said straightline and including a pair of springressed wings movable lnward and outwar in the slots of said slotted part, and

one of said devices being arranged to berotated by the carriage, and the wall of said chamber having in it air-passages commnni- 18. In a t-ypewritmg machine, the com-' bination with the carriage, of pneumatic carriage-retarding apparatus comprlsmg two cooperative air-compressing devices, one of these devices being arranged to be rotated by the carriage and each of them includin a cylindrical part, one of said cylindrictil parts being hollow and containing the other, and the inner cylindrical surface of the outer part being tangent to the cylindrical surface of the inner part and receding therefrom on opposite sides of the line of contact and said apparatus also comprising means adjustable by hand and effective to vary the resistance exerted on the carriage.

19. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two cooperative devices, one of these devices being arranged to be rotated by the carriage and each of them including a cylindrical part, one of said cylindrical parts being hollow and containing theothcr, and thc inner cylindrical shrface of the outer part being tangent to the cylindrical surface of the inner part and receding therefrom on opposite sides ot the line of contact, and the wall of said hollow part having in it an airpassage.

20. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two cooperative devices, one of these devices being arranged to be rotated by the carriage and each of them including a cylindrical part, one of said cylindrical parts being hollo\v an'd containing the other, and the inner cylindrical surface of the outer part being tangent to the cylindrical surface of the inner part and receding therefrom on opposite sides of the line of contact, and the wall of said hollow part having in it an airpassage on each side of said line of contact.

21. In a typewriting machine, the combination with the carriage, of pneumatic carriage-retarding apparatus comprising two cotiperative devices, one of these devices be ing arranged to be rotated by the carriage and each of them including a cylindrical part, one of said cylindrical parts being hol-- low and containin the other, and theinner cylindrical surfac of the outer part being" tangent to the cylindrical surface of the inner part and receding therefrom on opposite sides of the line of contact, and the wall carriage-retarding apparatus comprising two cooperative devices, one of these .devices being arranged to be rotated by the carriage and each of them including a cylindrical part, one of said cylindrical parts being hollow and containing the other, and the inner cylindrical surface of the outer part.

23. in a typeWriti-ng machine, the combination with the-carriage, of carriage-retarding means including'a shaft arranged to be rotated by the carriage, and pneumatic coinpressing devices, one of these devices in cluding a pait which is fast on said shaft, and one of them containing an air'chamher whose Wall surrounds the other device and mahescontact therewith at the ends and from end to end of each of said devices, said appara tus also comprising; means adjustable by hand andeifectwe to vary the resistance exerted on the carriage.

2d; ln a typewriting machine, the combination with the carriage, of carriagewtarding means including a shaft arranged to he rotated by the carriage, and pneumatic apparatus comprising a rotary device and another cooperative device. said rotary device.includinga part which, is fast on said shaft, and one of said devices containing an air-chaniher and an air-passage leading from said chamber, the Wall of the chamber surrounding the other device and making; con-.

tacttherewith at the ends and from end to end of each of said devices. j

in a typewriting machine, the combination with the carriage/{of carriage-retarding means including a'shaft arrangedto be rotated by the carriage, and. pneumatic apparatus comprising a -rotary' device andv another (inoperative device, sald-rotary device including a part whichisfaiston said shaft and one of said devices containing an ail-chamber: and air-passages offditferent sizes leading: from. said chamber, the wallfothe chamhersur "sanding and making contact with the other device, andgthe device.

containing said chamber having on it, means for closing some or all of said a1r-passages 26. in a typewriting machine, the coincarriage, of carriage-rs bination with ti 3 tarding means including a shaft arranged to be rotated by the carrian and pneumatic apparatus comprising two cotiperative devices, one of these devices being connected with and movable by said shaft, and one of them containing an air-chamber and airpassages of difierent sizes leadin'fromsaid chamber, the Wall of the chamber surroundmg and making contact With the other device, and the device-containing said chamber having on it, means for opening and closing said air-passages. 24. In a. typewriting machine, the combination with thecarriage, 0f carriage-retarding means including a'sha-ft-arranged to e rotated by the carriage, and pneumatic apparatuscomprising two 006 erative aircampressing devices, one 0ft ese devices containing an air-chamber, andthe other being confined in said chamber andvincluding a part with aficylindrical surface which makes contact alon a straight line with the' wall of said chamher and which is out of I contact with said wall on oppos te sldes of 1; said, straight line, and one 'of said dBVICGS- being connected with and movable by said shaft and said apparatus also comprising means adjustable by hand and effective to-- vary 'the resistance exerted on the carriage.

28. In a typewriting machine, the combination with the carriage, of carriage-retarding means including a shaft arranged to be rotated by the carriage, and pneumatic apparatus comprisng a rotary device andanother cotiperative device, said rotary dev ce including a part which is fast on said shaft and has a cylindrical surface, and the" other devlce containing an air-chamber 1n.

whichjsaid rotary device .'is confined, said cylindrical surface making contact along a siralg'l'it line with the Wall'of said chamber ice.

and being out of contact withsaid Wall on" opposite sides of said straight line, and the wall of said chamber having in it air-passages wmmunicating with'said chamber on opposite sides of the plane containing said straight line and the axis of saidsha ft-i In a. typewriting nachine, thec'oinbinat on with the carriage, of ca-rrlage ret'arding means including a shaft arranged to be rotated by the carriage, aiidpneuxfiatic apf paratus comprisinga rotary device other cooperative device, said rotary device including 21 art which is-fast on said and hasa cy l' device containingan air chambe'rjin which said rotary device is confined, said 'cylirih drical surface" making contact. along straight line with the Wall of said chamb'e and being out ofcontact with 'said wall on opposite sides of said straight line, and the Wall or said chamber having in it a plurality of air-passages of different sizes communicatin with said air-chamher on each side ofthe p ane containing said straight line and the axis of said 'shaft, and the device containing said chamber having on it means for closing some or all of said air-passages.

30. In a typewriting machine, the 'c0mb1- nation Withthe carriage, of carriage-retarding means including a shaft arranged to be marital Sin-face, nti-an o her rotated by the carriage, and pneumatic aprotated by the carriage, and pneumatic apshaft and has a cy indrical surface and in- -said rotary device is'confined, said cylinstraight line with'the wall of said chamber side: of the plane containing said straight nation with the carriage, of carriage-retardparstus conun'ising two cotiperative air-compr sing devices, one of these devices-com taining an air-chamber, and the other being confined in said chamber and including relatively mo able parts, one of which'has a cy. liudrical surface which makes contact along a straight line with the wall of said chamber and which is out of contact with said wall on opposite sides of said straight line, and one of said devices being connected with and movable by said shaft, said apparatus also comprising means adjustable by hand and ii'ective to vary the resistance exerted on the carriage.

31. In a typewriting machine, the combination with the carriage, of carriage-retarding inegais including a shaftarranged to. be

paratus COlllpl'iSlYlg a rotary device and'another coiiperative device, said rotary device including a slotted art which 1s fast on said cl uding a wing movable inward and outward 1n the slot-'m said slotted part, and the other dewcecontaining an air-chamber in which.

drical" surface making contact along a and being out of contact with said wall :on opposite sidesjo'f-said straight line, and the wall of said 'cha'mberhaving in it air-passages communicating' with said chamber; on oppositesides of, the plane containing said straight'line "d the axis of said shaft.

32. In a typewriting' machine, the combination with t j carriage, of carriage-retarding ineansi-ncniding a shaft arranged to be rotated by the carriage, and pneumatic apparatus comprising a rotary device'and ancluding a wing movable inward and outward on the slot of said slotted part, and the other device containing an air-chamber in which said rotary device is confined, said cylindrical surface making contact along a straight line with the wall of said chamber and being out of contact with said Well on opposite sides of said straight line, and the wall ef'said rffl'lPliHbQl' having in it a plurality of air-passages of different sizes com-- municating with said air-chamber on, each' line and the axis of said shaft,'and the device containing id chamber having on it'means for closing some or all of said air-passages.

33. In a typewriting machine, the-bombiing means including a shaft a-rrangedto'be rotated by the carriage, and pneumatic apparatus comprising two coii 'ierative devices, one of these devices including a-part which" v eluding a' pair of spring pressed wings mov able inwagel a-nddutwarcl on the body of the device and 'in contact with the other device, and one of said devices containing an air chamber inwhich the other device confined.

34. In a. typewriting machine, the combination with the carriage, of carriage-retardtarding means including a shaft arranged to.

be rotated by the carriage, and pneumatic apparatus comprising two coiiperative devlces, one of these devices containing an airchdmber, and-the other being confined in s'ai dbhamber and including a slotted part with a cylindrical surface which makes contact along a straight line with the wall of said chamber and which is out of contact with said wall on 'opposite sides of said straightline and including a pair of spring pressed wings movable inward and outward in the slots of said slotted part, and one of said devices being connected with and movableby said s'ha 36. In a 'typewriting machine, the combination with the carriage, of carriage-retarding means including a shaft arranged to be rotated by the carriage, and pneumatic. -apparatus comprising a rotary deyiceafnd" 'another cotiperative device, said rotary de vice including a slotted part which isfast on said shaft and has a cylindrical surface and including a pair of spring-pressed wings movable inward and outward in the slots of said slotted part, and the other device containing an air-chamber in which, said rotary-device is confined, said cylindrical sur-.

face making contact along a straight line with the wall of said chamber and being, out of contact withsaid'wall on opposite sides of. said straight line, and the: wall of said chamber having in it air passages communicating with said chamber on opposite sides ofthe plane containing said straight line-and the axis of said'shaft.

37. In a typewriting machine, the combination with the carriage, of carriage-retarding means includinga shaft arranged to .be rotated by the carriage, and pneumatic apparatus comprising a rotary device and another, cooperative device, said rotary device including a. slotted part which is fast is fast onsaid shaft, and one of them in on said shaft and has a cylindrical surface and including a pair of spring-pressed wings movable inward and outward in the slots of said slotted part, and the other device containing an air-chamber in which said rotar device is confined, said cylindrical surface making contact along a straightlinc with the Wall of said chamber-and being out ot. contact with said wall on opposite sides of said straight line, and'ine wall of said chamber having in it a-plurality of air passages of ditierent' sizes communicating with said air-chamber on each side of the plane containing said straight line and the axis of said shaft, and the device containing said chamber having on it means for closing some oiuall ofsaid aii passages.

238.11) a typeivritingmachine, the combination with the carriage, of carriage-retar-ding means including a shaft, a pinion fast on said shaft, and pneumatic appa 'atns comprising a rotar v device and another cooperative device, said rotary device including a part which fast on said shaft, and the, other device being pivoted to a. fixed support and having in it a bearing for said shaft and containing an air-chamber whose wall surrounds and makes contact with said rotary device at the ends and from end to end of each of said devices and bcing movahle on its pivotal axis to engage said pinion with and to disengage it from the carriage.

35). In a typcwriting machine, the combination with the carriage, of carriage-retarding means including a shaft, a pinion fast on said shaft, and pneumatic apparatus comprising a rotary device and another cooperative device, said rotary device including a part which is fast on said shaft, and a wingmovable inward and outward on the other part of the rotarv device, and the other has a c tion with the carriage, of carriage-retarding means including a shaft, a pinion fast on said Shift, and pneumatic apparatus com prising a rotary device and another cooperative derice, said rotary device including a part which is fast on said shaft and has a cylindrical surface, and the other device being pivoted to a fixed support and having in it a hearing for said shaft and being movable on its pivotal axis to engage said pinion with and to disengage it from the carriage and containing an air-chamber in which said rotary device is confined, said cylindrical surface making contact along a straight line with the wall of said chamber and being out of contact with said Wallon opposite sides of said straight line.

425111 a typewriting machine, the coinhination with the carriage, of carriage-retar jling means including a shaft, a pinion fast on said shatt, and pneumatic ap arati'is comprising a rotary device and anot er coopeative device, said rotary device including a part which is fast on said shaft and idrical snrt'ace, and the other device being pivoted to a fixed support and having in it a hearing for saidshaft and being movable on its pivotal axis to engage said pinion with and to disengage it from the carriage and containing an air-chamber in which said rotary device is confined, said cylindrical surface making contact along a straightline with the wall of said chamber and being out of contact. with said Wall on opposite sides of said straight line, and the W3 ll of said chamber having in it, air-pasconmmnicating with said chain-her on opposite sides of the plane containing said straight line and the axis of said shaft.

43. in a typewriting mach-inc, the comsaid chamber having in it air-passages commun-icating with said chamber on opposite sides of the plane containing said straight line and the axis of said shat't.

ahlln a typ'ewriting machine, the combination with the carriage, of carriage-retarding means including a shaft, a pinion last on said shaft, and pneumatic apparatus comprising a rotary device including a.slotted part which is faston said shaft and has a cylindrical surface and including a pair of \spring pressed wings movable inward and outward in the slots of said slotted part, and theother device being pivoted to a fixed support and having in it a bearing for said shaft and being movable on its pivotal aais to engage said pinion with and to disengage it from the carriage and containing an airchamber in which said rotary device is coilfined, said cylindrical surface making contact along a straight line with the wall of said chamber and being out. of contact with said wall on opposite sides of said straight line, and said wings also making contact with thewall of said chamber.

4 In a typewriting machine, the combination with the carriage, of carriage-retardiug means including a shaft, a pinion last on vaid shaft, and pneumatic apparatus comprising a rotary device including a slotted part which is fast on said shaft and has a c -'lindrical surface and including'a pair ofspring pressed wings movable inward and outward in the slots of said slotted part, and the other device being pivoted to a fixed Support and having in it a bearing for said shatt and being movable on its pivotal axis 'to engage said pinion with and to disengage it from the carriage and containingan air-chamber in which said rotary device. is confined, said cy'lindrical surface making contact along a straight line with thewall o't' said chamber and being out of contact with said wall on oppositc sides ol the straight line, and said wings alsomalcing contact with said wall, and the wall of said chamber having in it. air-passagescomnnmieating with said chamber on opposite sides of the plane containing said straight. line. and the axis of said sl al't.

4-7. in a typewriting machine, the combination with the carriage, of carriage-retarding mcans including a shall arranged to be rotated by the carri: go, and pneumatic apparatus comprising two cooperating airct ipre sing devices, each in luding a cylindrical part. one of aid cylindrical parts being fast on said haft, and one of thent being hollow and contain wthe oll1c1,and the inncr cylindrical .snr' ice of the outer part i g tangent to the cylindrical surface ol the inner part and receding therefrom on opposite sides ol the line oi contact, said no paratus also comprising mean adjustable by hand and elt'ec ive to vary the resistance exerted on the carriage.

l-R. in a typewriting macl'iinc, the combination with the marriage. ol carriagwrctarding means including a shalt arranged to be rotated by the carriage, and pncun ntic. apparatus cotnpri itm 'two cooperative devices, ach including a cylimlrical part. one of said .Ifjflllltllltftll parts being last on said hall.

and one ol lhein being hollow and containing the other, and the inner cylindrical surface of the outer part being tangent to the cylindrical snr'l'acc oi the inncr'parl and receding therefrom on opposite sides of the line of contact. and the wall i said hollovtjparthaving in it an air-passage.

l5). In a typcwriting machine, the combination with the carriage, o'l' cat riagc-retarding means including a shaft arranged to be rotated by the carriage, and pneinnatic ap paratus comprising a rotary device and another cot'iperativc device. said rotary device including a cylindrical part which is last on said shatt' and whose axis coincides with that of the shaft, and including a pair o'l wings movable inward and outward on said cylindrical part, and the other device include ing'a hollow-cylindrical part in which the rotary device is con lined, the inner cylitnlrical surface of the outer device being tangent to the cylindrical surface oi the rotary dt vice and receding therct'rom on opposite sides of the line of contact and being in contact 'with said wings, and the wall ol' said hollow part. having in it an air-passage.

50. in a typewriting machine, the combination with the carriage. ot'carriagc-retarding means including a shalt arranged to be rotated by the carriage, and pneumatic apparatus comprising a rotary device and .an-

other cooperative device, said rotary dcvicc .mcludmg a cylindrical part which is fast on said shaft and whose axis coincides with that of the shaft, and including a pair oi wings movable inward and outward on said cylindrical part, and the other device including a hollow cyliin'lrical part in which the rotary device is confined, the inner cylin; drical surlace of the outer device being tangent to the. cylindrical surl'ace of the rotary device and recedii-ig therefrom on opposite sides ot the. line of contact, and being tn other cooperative device,

contact with said wings, and the wall of said hollow part having in it an air-passage on each side of said line of contact.

51. In a typewriting machine, the combination with the carriage, of carriage-retarding means including a shaft arranged to be rotated by the carriage, and pneumaticapparatus comprising a rotary device and an said rotary device including 'a cylindrical part which is fast on said shaft and whose axis coincides with that ot't'he shaft, and including a .pair of wings movable inward and outward on said cylindrical part, and the other device in cluding a hollow cylindrical part in which the rotary device is confined, the inner cylindrical surface of the outer device being tangent to the cylindrical surface ofthe rotary device and receding therefrom on opposite sides of the line of contact and being in contact with said wings, and the wall of said hollow part having in it a plurality of air-passages of diii'erent sizes on each side of said line of contact, and said hollow part having on it means for closing someor all of said air-passages.

In a typewi'iting machine, the combination with the :arriage, ofcarriage-retarding means including pneumatic apparatus having inlet and outlet air-passages or ports of different sizes, and a sleeve surrounding a portion of said apparatus and having apertures adapted to register with said ports, said sleeve being adjustable to different positions so as to open or close said ports. a

'In a t-ypewriting machine, the combination with the carriage, of carriage-retarding means including pneumatic apparatus,

having a cylindrical part containing inlet and outlet air-passages or ports, and a sleeve surrounding said cylindrical part and hav ing apertures adapted to register with said ports, said sleeve being adapted to be turned by hand so as to open and close said ports.

54.111 a typewriting machine, the combination with the carriage, or carriage-retarding means comprising pneumatic apparatus including a hollow cylinder and a smaller cylinder inclosed within said hollow cylinder, said smaller cylinder having two slots opening substantially on opposite sides of said cylinder, and wings mounted in said slots and adapted to slide, in and out therein so as'to keep their outer edges in contact with the inner cylindrical surface of the outer cylinder.

In a typewriting-machine, the combination with the carriage, of carriage-retarding means comprising pneumatic apparatus including an outer hollow cylinder and a smaller cylinder inclosed within said hollow cylinder, said smaller cylinder having two slots substantially parallel and on opposite sides of the axis of the cylinder and opening on substantiallylopposite sides of the cylinder, and sliding wings mounted in said slots.

56. In a typewriting machine, the combination with the carriage, of carriage-retarding means comprising pneumatic apparatus including an outer hollow cylinder and a smaller cylinder inclosed within said outer cylinder, said smaller cylinder having a slot therein, and a hole of a diameter greater than the width of the slot, and so positioned with reference to the slot that it cuts one wall of said slot but not the other, a slide mounted in said slot, and a coiled spring mounted in said hole and pressing on said slide.

57. In a typewriting machine, the. combination with the carriage, of carriage-retarding means comprising pneumatic apparatus having a cylindrical part, one or more airpassages or ports in said cylindrical part, a sleeve surrounding said cylindrical part and adjustable thereon and having one or more apertures adapted to register with said port or ports, and a screw plug closing one end of said cylinderand retaining said adjustable sleeve in position.

58. In a typewriting machine, the combination with the carriage, of carriage-retarding means comprising pneumatic apparatus having one or more ports, a sleeve adjustable by hand and having one or more apertures adapted to register with said port or ports in order to vary the resistance offered by said apparatus, and a scale and pointer to indicate the diti'erent positions to which said sleeve may be adjusted. J

Signed at Syracuse, in the county of Onondaga, and State of New York, \this 23rd day of February A. D. 1906.

H ER BER-'1 ll. STEELE.

\Vitnesses \V. J. LOGAN, JonN S. l\lrronnm..