US436319A - Thirds to george d - Google Patents

Thirds to george d Download PDF

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US436319A
US436319A US436319DA US436319A US 436319 A US436319 A US 436319A US 436319D A US436319D A US 436319DA US 436319 A US436319 A US 436319A
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bar
type
lever
magnet
carriage
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, e.g. INK-JET PRINTERS, THERMAL PRINTERS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J23/00Power drives for actions or mechanisms
    • B41J23/32Electromagnetic power drives, e.g. applied to key levers
    • B41J23/34Electromagnetic power drives, e.g. applied to key levers applied to elements other than key levers

Description

(No Model.) a Sheets-Sheet 1.

E. J. SILKMAN.

TYPE WRITING MAGHINE.

Patented Sept. 9, 1890.

WITESSES (No Model.) 8 Sheets Sheet 2. E. J. SILKMAN.

TYPE WRITING MAGHINE.

Patented Sept. 9, 1890.

Attorney (No Model.) 8.Sheets Sheet 4. E. J. SILKMAN.

TYPE WRITING MACHINE.

Patented Sept. 9, 1890.

Immlll l lllllllllll' WITNESSES IJV'VEJVTOR %F5. 6W\ Y faw .dttorney (No Model.) s sheets-sheet 5. E. J. SILKMAN.

TYPE WRITING MACHINE.

Patented Sept. 9, 1890.

EIEIEI EIEIEI M E Q E g L m g E m H Q m m Q E a a E MW fifik 57% L \ipmwmw MNAP .lttorney (No Model.) 8 Sheets-Sheet 6.

E. J. SILKMAN. TYPE WRITING MACHINE.

Patented Sept. 9, 1890.

V /Q/ZQE:

M w w m m m V M m 6 a a U Q WITWESSES fifM.

(No Model.) 8 Sheets-Sheet 7. E. J. SILKMAN.

I TYPE WRITING MACHINE. N0. 436,319. Patented Sept. 9, 1890.

NIH

WI TWESSES IJV VEJV TOR (No Model.) 8 SheetsSheet 8. E. J. SILKMAN.

TYPE WRITING MAGHINE.

No. 436,319. Patented Sept. 9, 1890.

WITNESSES udw flttorney r5 9 is a plan view of same;

,- 4o ,is-a; transverse section oi? shine.

UNITED STATES PATENT O FICE.

EDWARD J. SILIKMAN, or BABTIMORE, MARYLAND, nssreuo n' or TWO- 'rnmns 'ro GEORGE n. PENNIMAN AND THOMAS K. won'rnmeron.

so'rn F SAME PLACE.

TYPE-WRITING MACHINE.

- SPECIFICATION To all whom it may concern:

Be it know'n-thatI, EDWARD J. SILKMAN, a citizen of the United States, res'idingat Bait imore,in the State of Maryland, lia-veinvented .5 certain new and useful Improvements inTy'pefivriting Machines; and I do declare the follow:

ing to be a full, clear, and exact description ofthe invention, such as will enable others skilled in the" art to which it a'ppertains to- H0 make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon; which form a part of this specification.

Figure l is a frontelevation of myimproved electrical typo-writing-1nachine. Fig. 2 isoplan view of my improved type-writing machine. Fig.3 is an end view of same. Fig.4is a vertical transverse section of bracket B and cone-points b"b. Fig. 5 is a vertical section to of barrel-0, spring 0, wheel 11, and ratchet n. Fig. 6 is a top or planview of wheel '11, ratchet n, and'levers rfland n -Fig 7 is a horizontal section ofbarrel Q and spring 0'. Fig. 8 is a front elevation ofribbonmovement. Fig.

view of carriage M. Fig. 11 is a vertical lon: git-udinal section of a part of bars G g. .Fig.

12 is a vertical longitudinal section of a section of the bar 72. Fig. 13 .is .a broken detail 36 top view of'bar (P. Fig. 14 is afrontview 0i same. Fig. 15 is a broken face view of type-- carrier. liig. 16 is a detail side elevation of lever and key plate'D. Fig.17is-a detail side elevation of lever and key-plate .1). Fig. 18 '35 is adetail-top view of type-carrien. Fig. 19 is a section on line .ru', Fig. 2. Fig. 201s avertieal section on line -y y, Fig. 18. Figzfll is a detail viewof type-carrier. Fig."22 isatront view of bar'Q, showing-the tnppet q. Fig. 23 Fig. His 0. *side elevation of hammer. Fig; 25'isaback view of same. Fig. 26 is n frontvicw of same.

Fig. 27 is a plan view of battery and wires;

. Fig. 28 is at front elevation oi bar lflshowing, 5 contact-points. 1

This invention relates to type-writing machines, the main object beingto actuate the Fig;- 10 is an end of the cone-points. are plate 0 is provided with the series of machine by electricity when the key-board is operated in the usual manner, so that by forming part of- Letters Patent No. 486,319,11ated5eptember a, mac. Application filed Augult 25j'1887 'florlll Ho. 347,858. (No model.)

means of one battery, one main circuit,-and 30 several branch circuits the type-frame w be vibrated, the hammer will strike the stem of-- the proper type-plate,and the earriagewill be moveda suitable distance-laterally.-

by letter. A designates the base-plate of the machino having the post a rising-from it-at a suitable point. The said post is provided with the circumferential shoulder, a, above; which rises the stem (1*. v B is a bearing-bracket, having the sleeve 1) fitting on the stem a down to the shoulder a-'=, which ste n is angular in cross section.

I The sleeveb at the top is provided with the cone-point b. The upper sleeve b fthe 6.5 bearing-braeket-is aligned with th'e'sleeve b and is connectedtherewitliby the arm b,

b is a detachable and adjustable cone-point having a stem that passes through an axial opening in the sleeve 19. .Bymeansof this stem and the set-screw b the point I) is'adjust-ed in relation to thelower pointb for the purpose of taking up wear." v

C is the type-carrier frame or type-frame, consisting of the curved armc, provided near one end \vith.the opposite bosses c, which have bearings for the cone-points b b and the arc plate c 'concentric with the bearings The inner edge. of the So equidistant notches c, the openings of which are rounded or beveled on each side, as at c c, for a purpose hereinafter explained.

D, D' are key-levers pivoted upon opposite sides'of a post (Z rising from the base-plate A and respectively provided with the face-plates d d. .The inner arms of the said levers bear against the lower edge of a.- liftin -bnr. d,

which has one end pivoted on-a stan ard rising from the base-plate and the other end bi- 9o liureated- The arms of thebifurcation rest under the pins (2, which stand out oppositely from the lower'sleeve b of the bearing bracket B. v I

v The key levers D D have respectively under their outer arms .the stop-blocks d d", which limit the upward motion of their inner arms, the lever D moving the bifurcated end Referring to the accompanying drawings '55 'D indves the same.

.the hammer.

of the bar d? twice as high .as the key-lever This is for the purpose of moving the type-case and the type-plates, hereinafter described, into such position that their different rows of type will face the center of the roller.

The key-plate of the lever D is marked caps, and that of the lever D signs or numbers.

E is the typc-case, consisting of a base-plate secured to the arc plate of the type-frame and theinncr and outer vertical edge plates or flanges e e concentric with the cone-points or journals. The outer flange is flush with the outer edge of the arc plate 0, but the inner flange is sufficiently removed from the inner edge of the same tolcave the notches c entirely uncovered.

e e are the rows of type-plates resting normally against the outer'surface of the outer .flange e, the members of the rows being each provided with a central stein e, which stemspass through registering or corresponding openings in the plates e, the stems being radial to the arcs on which the plates are made.

The corresponding members of the. rows are above each other and vertically and centrally above-the corresponding notches c,

F is I the hammer, hereinafter described, situated centrally in a plane at right angles tothe roller and passing vertically1 through the bearings of the typcframe, so atwhen the. hammer strikes the inwardly-projecting end of the type-stem e the type-plate will be driven squarely against the paper on said roller.

Each type-plate has on'its surface opposite the type-frame a character, the one on the upper plate being a small letter, that on the central plate in t e row being the capital letter corresponding to said small letter, and the character on the corresponding plate-in the lowest row a sign or number. Thus there are formed by the type-plates three rows of characters, small letters, capitals, and signs or figures in the order stated: The type-5mm of each plate is surrounded between the plates. e by a coiled spring a, which bears against a collar e and returns the type-plates inward after it-has been driven outward by The type-stem on the side of the collar e towardwhc inner end e thereof is reduced in size and' squared, passing through a squared opening in the adjacent,

plates for the purpose of preventin said stem placing the letter. I y G is a horizontal bar supported upon end standards rising from the base-plate and provided with a series of vertical openings gg,

and is a metal lever-bur resting upon the bar and provided with vertical openings g, registering at certain times with the openn v i is an arm standing out from the curved arm 0 of the type-frame and provided with a depending ping, that enters a long tudinal from rotatingin its bearings an mislevers and pivoted at the on notch orslot 5 in the adjn-cent'end of the lee er-bar g. "he opposite end of the ,lever- I bar is situated between the facing-poles of the. electro-inagnets, hereinafter described, and is alternately attracted by each, for a purpose hereinatter explained.

g g are pins'provided with heads on their lower ends that rest normally in the openings 9 and are thrust .downward' by the coiled springs g that surround them between the lower surface of the bar: G and the collars g. Theu'pper ends of the pins are beveled or rounded and the lower ends of the openings the pins will readily enter said openings. The heads onthe lower ends of the pins rest upon the ends of the inner arms of the hey-levers H; which are pivoted in notches ,in the longitudinal bar 71, a rod h' 'p nssing through the bar and through suitable openings in the keyleveis, which are provided on the ends of theirouter arms with the key-plates h and rest when in normal position upon a stop-bar b, that extends between the end supports of the bar G and prevents the inner arms of the levers from descending below a horizontal po-' sition, so that the pins g are he with their ends i p the openings g, but not inithe oponings g The faces of the keylates h' are marked each with the letter an the signer number corresponding with those on the registering type-plate in the three rows,so that when any key-is depressed and the ping correspond:

ing thereto-is drivenup into the pro ropen-.

ing g in the. lever-bar g the said ever-bar will by the attraction of the magnet X turn the type-frame into such position that the stem of one of the corresponding typo-plates .80 g are correspondingly countersunk, so that will be in front of the hammer and ready to Innkeits. im-

to be struck thereby, not; t 1 th 11 n o s :0 or.

press upon the paper in The openings in the lever-bar are so related to the type-plates and the pins 9' that when key is depressedand the izirouitostab: l-is ed by'means horeinafterdescribed 'ono of the corresponding type-plates will have its stem-moved in front of the hammor'ready to ho struck thero The magnets J andY arc'aligned with their facing-poles on each side of the outer end of tho lover-bar, and have their hellces in the following circuits.

I is'the battery, having the positive wire 1', which runs outward and branc as, one branch 1'' connecting with the helix'of tho magnet X and the other branch 1 connocti with the helix of the magnet Y. The nogst. vo wir'eJ from the battery has a branch j, which runs to one end of a bar K, restin upon the keyof its arms k upon the supports of the perforated bar G, the said end beiu 'adjacentto the magnotsx and Y, A s'econ branch j runs-to the other end of said bar K. are contact-points If! standing from the ends of said .bar and in electric connection, respectively, with the wires j and j; .When' anyf-key ispressed down, the corresponding pin g is pushed up into. the openi hgtg above the opening 9, in

which the said-pm rests, so-that the-l'ever-bar.

-5 canturn on the pinasafulcrum. The openings g in the barG and the corresponding hammer, the fulcrum-point changing when different keys are operated. When the near-- est pin to the magnet is pressed up by its key and is the fulcrum on which the lever-bar turns, the leg of said bar toward the magnets .is much shorter-than the leg outward from thesame, and consequently the type-frame will be thrown toits farthest position inward ze' and the type-plate nearest the arm of the frame will be brought in front of the hammer, When the pin nearest the type-frame is pressed up by the corresponding key, the outer arm of the lever-bari'smnch shorter than the inner arm ofihe same, and consee quently the type-frame is moved the least distance, and the type-plate farthest from the arm of the frame is brought under the hammer. The intermediate openingsin the leverbar and bar :G are spaced in-"such manner that the type-frame will be moved by operating the keys multiples of the distance between any adjacenttype-plates, which are arranged at equal distances apart.

L is the magnet for the hammer F, the-rod f of which is pivoted on a projection f piv- 'oted on a bracket rising from the base-plate of the machine. 0n the lower end of said barf is an armature f 2 for the magnet L.

f is a spring secured to the bracket and forces the barf outward from the stems of the'type-platcs against the action of the magnet L'- Y i f" is 'a coiled spring, which connects the arm 5 f of thehammer-rod f with the bar f.

fis awire connecting the helm of the magnet L with the positive wire of the main cir-,

cuit, and f is a wire running from the hammet-magnet an d having a contact-point f" on its end. which point standsabove the contact- I point j.

' The magnet X connects by-a wirey witha contact-point 3 below the contact-pomtj, and the magnet X connects by a wirem with a contact-point m, which stands above the contactpoint j, but nearer thereto than the contactpointf is to'the contact-pointy", so that when thefkey is touched and the bar raised the point j, which is between the points w and y,

60, will closethe main circuit before the secondary circuit through the pointsj and f and the hammer-magnet is closed.

By this 'means the type-frame is thrown into position before the magnet L by attracting the armature 1" causes the hammer to strike the stem of the type-plate in-front of it. When the key is released, the bar'K falls carriage.

backtherewith, the. circuits between the pointsj and)" and between the points z and J2 are. broken, and the circuit between the points'j and y is established, so that the magnet Y is rendered active and the lever bardrawn to the magnet, movingthe typeframe into its normal position;

his a key-lever pivoted upon the bar 7;. on 7 5 the rod h and restingon the bar h similarly to the key-levers H. The said key-lever does not extend under a pin, but underthe-bar K only, which it raises. when the key-plate is pressed down. By pressing the key-lever it down snfiici'ently to raise the bar K slightly the circuits through the, magnets Yand l are broken, but the circuits through .2: and the hammer-magnet are not established. Then when the key is released no letteris printed; but when the bar K falls and establishes the circuit-through the magnets .Y and'l the can riage will be moved a space The. circuits are broken only to let the bar 7'1 spring back and the pawl n engage another tooth. Then when the bar K falls and the circuit is established through the magnets Y and l the magnet I attracts the armature n? and moves the This is done to secure a blank 7 space between the words. The hammer is not thrown directly by the magnet L, but the motion of the barf, causcdby the magnet, gives the hammer sufficient momentum to overcome the tension of the spring f, so that the hammer is thrown over against the type-plate stem, and after striking it imme diately rebounds and allows the type to rctract from the roller, the spring drawing the hammer outward. The bar f strikes in the notches c, and should the type-frame not be in the exact proper position on account of a worn pin or fromother cause the said bar by striking'on one or theothcr of the beveled edges of the corresponding notches will force the type-plate into a perfectly-true po-' sition for the type when struck by the hammcr to print in the proper place. 4

Z is the magnet that moves the carriage by means of mechanism hereinafter described. This magnet connects with the positive wire 1' by a wire Z and with the contact-point y? by a wire I, so that when the circuit through the magnet Y is established a secondarycin cnit is also established through the magnet land the carriage moved a properdistance.

M is the carriage, provided with the longitudinal rods m in, that slide laterally on the sets of rollers m m, provided with shafts having. hearings in brackets secured to the main frame. I J m is the 'main roller, and "m is the lower opposing roller that coacts with the main roller to carry the paper. The said rollers are journaled in the arms of the frame M, the lower roller we having its bearings journaled in the outer cnds'of short bars 1n, the inner ends of which are pivoted upon the outer surfaces of the arms or. ends of the carriage. m are springs secured to said arms and hearing against the bars 'm to force the roller m, upward against the-main roller.

N is a. longitudinal rack secured to the lower part of the carriage and meshing withthe gear-wheel -n-, which has secured upon its upper side the ratchet-wheel n, the gearwheel and ratchet-wheel both rotating upon a vertical shaft n rising from the base-plate.

N is a lever with one end pivoted upon the shaft a above the ratchet-wheel and having pivoted upon it the pawl 11, which engages the ratchet-wheel and is forced into engagement therewith by the spring 71-", se-

cured u on the lever. The pawl n has a pin 11 stan ing upward from apoint near its end, which pin rests against the spring-bar n that has a depending-pin n engaging the teeth of the ratchet wheel; The outer end of the spring-bar n enters between the upstanding arms n of a bar n that is provided with longitudinal slot-s n, into which the guide-pins n" enter, so that when the bar n is pulled outward the spring-bar it pulls the pawl out of engagement by means of the pin 11., and also moves' its own pin u out of enga'gement' with said wheel. The pin u on thespring-bar keeps the ratchebwhecl and gear-wheel nfrom rotating when the pawl n is drawn 'over the ratchet-wheel and held.

thereto by the spring a. When the circuit is established"throu% h the magnetYand also through the magnet I by the'ineans described, the latter magnet attracts the armature n" on the outer or vibrating end of the lever 11,

and by means of the pawl 11, the'gear-wheel and rack. N, moves the carriage a propendistance'laterally. 1

'0 is a coiled spring in a barrel-'0, which turns upon the shaft m and is secured to and below the gear-wheel n. The said spring has one end attached to the barrel within the same and the other end attached to theshaft .n', so that as the carriage is moved over to.

the left by the pawl n the spring is wound'u p. When the carriage h'as reached its proper distance to the left, the operator,-by pulling the bar n outward, releases the pins n. and 'n" from engagement with theratchet-wheel, as described, and the spring 0 returns thecarriage to the right.

P is a ribbon running in front of, the main roller'over the rollers 10, and p and p are the spools upon which the ribbon is wound, the ribbon passing from the spool 19' to the spool p' over he rollers, or the reverse.

p and p are ratchet-wheels secured, res *tively, to the shafts of the spools p and p i d-rid having-their teeth face in the same direction. The said shafts turn on standards which'rise from. the base plate and enter the bores of the shafts, and have their upper ends squared, so that the spools which have squared openings can be slipped on and off and will turn with their respective shafts.

p isa bar pivoted at its central point on the lever. n and having on its opposite ends plate to strike'a fresh place thereon.

p" is a slotted bar moving on the guide-pins p 11 and provided with the arms 11" 1:, between which rests the arm of the bar nearest the spool 31". When the slott but is pushed inwar the bar p is moved on its pivotal point in such manner that the pawl 12 is disengaged from the ratchet-wheel p and the pawl '11 is engaged on the ratchetwheel 1). The ribbon is then wound in the opposite direction, or on the s oolp', the pawl 11, which is curved, pullingt eratchet-wheel toward the magnet l as the latter. attracts the armature. a Q is a bar extending longitudinally under the carriage and supported at the ends by standards; The bar Q is angular in cross-section and has upon it the ta-ppet q, the sleeve of which slips on the bar and is adjustable thereon by a set-screw, as shown. R is a ratchet-wheel secured on the left journal-of-the shaft 1' of the main roller.

r is a lever pivoted at one end to the carriage and at the other end carrying the pivoted pawl S. The lever-r is ress'ed upward by the spring a", secured to t e carriage, and the pawl S, which'engages the ratchet-wheel R, is pressed into engagement therewith by the spring s, which is secured upon the lever 1:. a s is a linkmod connecting the lever 1" at a suitable point with the horizontal arm of a crank-lever s, which is pivoted at itsangleto "the carriage and has its vertical depending arm connected to one end of a bar a, the op posits end of which is similarly connected to a link s, which hasits upper -end pivoted to the opposite end of the carriage at a int cor- {esponding to the pivotal point-of t e crankever. pending arm of said crank-lever. The bar .9 rests within a hook on the rearwardl'y-extended end of the slotted sliding .bar n".

When the end of any line is nearly reached,

the same is indicated by the following means:-

A bell 1 is secured to any proper int of the main frame, having a hammer t. bored or handle t of the bell is pivoted .upon a roper support on the base-p ate, as shown. 1 is an electro-magnet, with one pole opposite the armature t on the arm of the ammer-rod, so that when the magnet attrncts'the armature the bell will ring. The magnet. t connects with the positive wire 5 of the main circuit, by a wire U and has a wire it running The saidlink equalsin length the dew Y 8. a proper point. u is a hooks u and u,

' the carriage.

from it and rising within wire running'from the negative wire J of the main circuit to a point transversely opposite the'wire u. The wires u and u, respectively, end in contactwhlch engage over the parrunmng between the ends 6f v The said wires rise within the carriage-frame at such a point that neither end of said frame can strike them while moving to and fro. The wires" V, at the'right end allel wires V V,

1 of the carriage are provided with the free springends or contact-points 'v v',one of which is inward from the other and which spring apart to prevent contact. When said-electric q. as the carriage points reach the tappet moves to the left, thetappet forces themtogether, closing the circuit through the magnet tand ringing th h n Immediately thereafter the operatorpulls outthe bar 11", releas-.

ing the carriage, as described, which is then carried tothe right end of the machine by the spring 0. The pulling out of the bar a also swings outward the bar s and by means of the angle-lever s and link 8 draws down the lever a", ,causin g the pawl S. to rotate the main rollerand move the paper the proper-space for a new line. s is a set-screw engaginga tapped opening in 2. lug on the carriage. By means of this set-screw the lever 'I" can be" depressed and the space consequently made narrower. At the'left end of.- the carriage the wires V V' are Provided with the elastic contact-points v 1: ,which lie between the two rollers,-so that the paper passes between them and separates said points. When the'paper is removed,the

points spring together, closing the circuit and ringing the bell. The circuit through the magnet i can thus be closed either through the points 0 v or. through the points 0 v, as the books a u keep up constant con tact with the wires V V as the carriage slides along.

W Ware springs secured to the arms w w, that are attached to the ends of the carriagefranie. The said springs are .curved to conform to the circumference of the main roller and hold the opposite edges of the paper on the roller. The paper passes from rearward under the main roller and undersaid springs and is by them directed forward and upward to .receive the impress of the typeplates. Then it is directed backward over the top of the main roller and falls on the frame w, whichinclines upward and rearward from the carriage. When one of the pins has been driven up into the corresponding opening 9 by the key-lever below it, it acts as a pivot for thelever-bar to return to its normal position. The contact-points w 'y' are so situated'that when the perforated lever-bar is in its normal position and the keys down the point y' and the point j are in contact and the-ci-rcuit is established through the magnets YandL- When the key falls back,contact is made between the pointsj and 3 before the the carriage-framepinis out of the corresponding ope g 9, that the lever-bar can turn thereon into its normal position, and when said contact is circuit-closer, and independent pivots sepae rately thrown into action at will between said lever-bar and keys, substantially as and for the purpose set forth.

2. The combinationof an electric battery having connection with oppositely-disposed electro-magnets, a type-carriage, a lever-bar having connection with said carriage, keys, :1 circuit-closer, independent pivots separately thrown into action at will between said leverbar and keys, the hammer, and, its magnet, said circuit-closer having the contact-point upon one end nearer to the contact-point of the main circuit-wire than the contact-point upon its opposite end is to the contact-point of the secondary circuit wire, substantially as specified;

3. In a type-writer, the combination of the fixed perforated bar, the lever-bar provided with perforations registering with those of the fixed bar, the pivoted keys, and the pins resting on the inner arms of the'ke'ys, with the two magnets having their poles aligned on each side of the outer end of the perforated lever-bar, the frame K, the battery, circuits, and contact-points, whereby the current is alternately deflected through the magnets when operating a key, first throwing the type-frame in front of the printing-roller and then returning it to its normal position, substantially as specified.

4. The combination of the perforated leverbar, the pivoted keys, the pins moved by-said keys, the oppositely-disposedelectro-magnets,

, the battery, the circuit-wires, and the barlying upon the inner arms of the keys and having the contact-point upon its one end in nearer proximity to the contact-point of a main circuit-wire than the contactpoint at its oppo-.

site end is to the contact-point of a secondary circuit-wire, substantially as and for the purpose set forth.

5. In a type-writer, the combination, with the battery, magnets, circuits, and contactpoints, substantially as described, of the pivoted. key-levers, the spring-controlled pins, the stationaryv perforated bar, the lever-bar provided with perforations. corresponding with those of the stationary bar and having a slot in its inner end, the frame K,t-he journaled type-frame provided with a depending I arm that enters said slot, the type-carrier secured to-said frame and providedwith the inner and outer plates concentric with the journals of the lever-frame, and the typeplates havingletters, signs, and figures simia seats in to those of the corresponding keys, substantially as specified.

6. The combination of the vibratory typocarrlage', the electric battery, the oppositely- 5 disposed eleotro-magnets, the circuit-wires, the contact-points, the perforated lever-bar, thepins actuated by the keys, th'e circuit maker and breaker or commutator, the contact-points of said commutator or circuit maker and breaker, the contact-point upon one end of said commutator being nearer to the contact-point of the main circuit-wire than thecontact-point upon the opposite end. of said commutator'is to the contact-point of r the secondary circuit-wire, and the hammer and its circuit-wires, substantially as set forth.

7. The combination of the battery, electromagnets, circuit-wires, contactpoints, the so pivoted key-levers, the spring-controlled pins,

the stationary perforated bar, the perforated lever-bar having an end slot, the baror frame resting u n the key-levers, the journaled type-carriage provided with a pendent arm entering the end slot of the lever-bar, the type-plates having letters, signs, and fig-V urea corresponding to those of the keys, the.

- hammer, the. hammer-magnet, andthe secondary circuit for actuating the hammer, sub- 0 stantially as and forthepurpose specified.

I 8. In a type-writer, the combination of the vibratory type-frame, the stationary perforated bar, the lever-bar having perforations thatregister with those of said bar, the spring- 5' controlled pins, the pivoted keylevers to raise said pins, the magnets aligned on opposite sides of the outer,-end,of the lever-bar,

the main circuit, the bar lying on thej'key-levers with its arms pivoted on the supportsof 4c the stationary perforated bar, the. contactpoints-attached to one end of'said'pivoted bar, and the contacbpoints on the ends of the wires from the magnets, respectively, above and below the contact-point on the pivoted 5 bar, the contact-point at the end of one upper wire being nearer to the contactepoint at one end of the pivoted bar than the contactpoint atthe end of the other npperf-wire is to the contact-point at that end of the pivoted bar, substantially as specifled.

9. The combination of the vibratory typeframe,'the bank of pivoted key-levers, the pins, and the lever-bar slotted at one end to receive the depending. pin from the type- 5 frame and provided with perforations registering with the pivotal pins and adapted to receive the same when driven up by the corresponding keys; substantially as specified.

. 10. In a type-writer, the combination, with the perforated lever-:bar, the pivoted key-levers, the spring controlled pins, the-typeframe actuated by the movement of the lever-bar, the type-carrier attached thereto, and the maincurrent battery and magnets vibrating said leverbar and frame whenthe keys are operated, of the carrier-frame. the

rack secured to the same, the gear-wheel and attached ratchet-wheel, the lever pivoted on the shatt'of said gear-wheel, the airing-pawl pivoted to said leverand engagin t e ratchete wheel, the magnet actuating sa dimer, and the secondary or shunt circuit, of which the helix of said magnet terms a art and which connects with the negative an positive wires of the main circuit and is providedwith con- 7 5' tact-points that connect only when the perforated lever-bar is in its normal position, substantially as specified, l r

11, The combination, with the vibratorfievar-bar, the type-frame actuated by said r, the battery, magnets,.and main-circuit; of the hammer, .the' hammer-magnet actuating the same, and the secondary-or shunt circuit, of which the hammer-magnet forms a part and which has-contact-points that connect immediately after the main circuitisclosed through the helix oi." the magnet and throws the typeirame forward,substantially as specified,

12. An eieotrot writin machine,-snbstantiali'y as descrl cons stin of. a bank of keys, a'batt'ery,a main circuit aving electro-megnets, a perforated lever-bar vibrated by said magnets when the keys are 0 rated, spring-controlled pins resting u n ,t e keys and within apertures. in a eta nary bar, a 5

' immmntator actuated by the said key-levers,

a vibratory type-frame moved by the leverbar, a carriage havin a rotary main roller,- me'chanism for actna ng the mainroller-csh' rying carriage, the type-plates provided with roe stems, at rrier secured to thetype-frame and provided with bearings for the said atoms, a hammer situated in ition to strike the stems of said key-p tee when brought; opposite to it, and a shunt or sec-'10s ondary circuit in connectionwith the main circuit and having within it a magnet that operates the hammer when-the type frsme hasrotated to position and is at rest, substantially as specified. r so '13. In an electrotype-writing machine, the a combination, with the battery and main circuit, of the carriage, the wires running longitudinally along the carriage and having sep-' arated points at one end, the shunt-wires from. 1 13 the main circuit forming loops over said carriage-wires and having the helix of the bell magnet in the circuit, and the tapp'et-block adjustably attached to a rod on themain frame, whereby said points ,are closed when no the I carriage reaches a proper point near the end of its travel and by closing the circuit rings the bell, substantially asspecifled.

14. The combination, with the main circuit and the vibratory type-frame actuated by :25 said circuit and the battery, of the hammer, the shunt or secondary circuit embracing the coil of the hammer-magnet, and the contact-. points, whereby said shunt or secondary circuit through the key-levers having pivotal 1 o connection with a lever-bar, one end of which is connected to the type-frame and the other end is disposed intermediately, of opposite electro-lnagnets, will be rendered active immediately after the type-frame has been thrown'by the magnets of the main circuit into proper position and come to rest, substantially as specified.

15. The combination, with the main circuit and the vibratory type-frame actuated by said circuit, of the carriage provided with thebrations thereof, the pivoted key-levers, the

pivotal pins thrown upward into position by the depression of the outer arms of the keylevers, the battery, the main circuit, the two magnets having their cores aligned on opposite-sides of .the outer end of the perforated lever-bar, and the commutator mechanism actuated by the keys and provided with com tact-points, whereby the current is alternately deflected through the two magnets of the main circuit as the keys are operated, of

, the hammer, the hammer-magnet, the shuntor secondary circuit embracing the coil of the hammer-magnet and rendered active immediatcly before the lever-bar is returned to its normal position, the carriage and the carriage-moving mechanism, substantially as described, the secondary or shunt circuit embracing the helix ,of the carriage-moving magnet, and the contact-points whereby the carriage is operated as the type-frame is brought to. its normal position, substantially as specified.

17. The combination of the carriage, the rack carried thereby, the gear wheel or pinion meshing with said rack, the ratchet-wheel secured to and moving with the gear-wheel,the

' lever having one end pivoted to the shaft of the gear-wheel and the other end opposite the pole of an electro-magnet, the spring 'pressed pawl engaging the ratchet-whee], the pivoted spring-bar having a'pin engaging the teeth of said ratchet-wheel and resting upon a pin projection from said pawl, and a slotted bar havingarms between which is received said spring-bar at its free end and receiving guidepins in its slot, substantially as and for the purpose specified.

18. The combination of the carriage, the rack carried thereby, the gear wheel or pinion nicshingswith said rack,the-ratchet-wheel secured to and moving with the gear-wheel, the lever having one end pivoted to. the shaft of the gear-wheel and the other end opposite the .pole of an clectro-magnet, the spring-pressed pawl engaging the ratchet-wheel, fthe pivoted spring-barhaving a pin engaging the teeth ofvsaid ratchet-wheel and resting upon a pin projection from said pawl, a slotted bar having arms between which is received the outer free end of said spring-bar, the electromagnet; and thecoiled spring arranged within a barrel secured to said gear-wheel, one end of said coiled spring being connected to the barrel and the other end connected to the gear-wheel shaft, substantiallyas and for the purpose set forth.

19. The combination of the carriage-frame carrying a rack, the gear-wheel meshing therewith and having an inclosed spring, one end connected to the wheel-shaft and its other end to the inclosnre, a ratchet-wheel, a lever pivoted upon the shaft of the gearwheel and carryinga spring-pressed pawl engaging with said ratchet-wheel and having a pin, a pivot-ed bar resting against the pin of the pawl and having itself a pin engaging I with said ratchet-wheel, and-the slide-bar having arms between which is received the outer free end of said pivoted bar, by means of which said pivoted bar and the pawl are simultaneously disengaged from the ratchet-wheel and the carriage returned to the right, substantially as specified.

main circuit, the carriage, the wires running longitudinally along the carriage and forming contact-points at one end' between the rollers, and the shuntwires reaching from the main circuit and looped over said carriagewires and having the heiixiof the bell-magnet in the circuit, which contact-points are kept separated by the paper and upon the removal of which paper said contact-points spring together, closing the circuit and ringing the' bell, substantially as described. a

21. In a type-writer, the combination of the rack on the carriage-frame, the gear-wheel meshing therewith, the ratchet-wheel on the gear-wheel, the pawl engaging the ratchet wheel and having an outstanding pin, the pivoted bar having a 'depending pin engaging the. ratchet-wheel and itself engaged by the pin on the pawl, the slide-bar engaging the pivoted bar of the longitudinal bar swung to the carriage and engaging the hooked end of said sliding bar, the anglelever connected to one end of the swinging bar, the link connected to the horizontal arm of the anglelever. the pivoted lever connected to the upper end of the link and pressed upward by -a spring, the pawl pivoted to the end of said pivoted lever and pressed down.- ward by a spring, and the ratchet-wheel on 20. The combination of the battery, the

the end of the printing-roller shaft engaged by said pawl, substantially as specified.

22. Invan electric typo-writer, the combinaarmatured end opposite said magnet and nor In testimony whereof I affix my s g at 'fi mally held by a spring away from themagin presence of two witnesses. net, the other member of said hammer hav- 4 ing a re'arwardly-projecting arm at its lower EDWARD J. SILKMAN. '5 end Connected by a spring to the principal member, normally holding it away from the Witnesses: v

principal member as also away from the type- PHILIP O. MASI, frame, substantially as shown and described. THEO. MUNGEN.

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559455A (en) * 1947-03-13 1951-07-03 Robert N Meyer Coding device
US2578830A (en) * 1947-02-15 1951-12-18 Nat Acme Co Solenoid actuated printing platen
US2621772A (en) * 1950-01-09 1952-12-16 Richard V Reppert Power-operated typewriting machine
US2658446A (en) * 1953-11-10 Ticket issuing machine
US2686470A (en) * 1952-04-16 1954-08-17 Florez Company Inc De Hammer impelling means for high-speed printers
US2787210A (en) * 1953-01-22 1957-04-02 Jr Francis H Shepard Hammer impelling means in high speed printers
US2838156A (en) * 1954-05-03 1958-06-10 Griffith Ronald George Type carrier for telegraph type printing apparatus
US2913978A (en) * 1955-07-07 1959-11-24 United States Steel Corp Device for marking traveling strip
US2938618A (en) * 1959-01-08 1960-05-31 Herbert F Niccolls Zone controlled carriage return mechanism for typewriters
US3139820A (en) * 1961-10-16 1964-07-07 Holley Carburetor Co Print hammer mechanism

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658446A (en) * 1953-11-10 Ticket issuing machine
US2578830A (en) * 1947-02-15 1951-12-18 Nat Acme Co Solenoid actuated printing platen
US2559455A (en) * 1947-03-13 1951-07-03 Robert N Meyer Coding device
US2621772A (en) * 1950-01-09 1952-12-16 Richard V Reppert Power-operated typewriting machine
US2686470A (en) * 1952-04-16 1954-08-17 Florez Company Inc De Hammer impelling means for high-speed printers
US2787210A (en) * 1953-01-22 1957-04-02 Jr Francis H Shepard Hammer impelling means in high speed printers
US2838156A (en) * 1954-05-03 1958-06-10 Griffith Ronald George Type carrier for telegraph type printing apparatus
US2913978A (en) * 1955-07-07 1959-11-24 United States Steel Corp Device for marking traveling strip
US2938618A (en) * 1959-01-08 1960-05-31 Herbert F Niccolls Zone controlled carriage return mechanism for typewriters
US3139820A (en) * 1961-10-16 1964-07-07 Holley Carburetor Co Print hammer mechanism

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