US484132A

US484132A - barron

Info

Publication number: US484132A
Authority: US
Publication date: 1892-10-11
Anticipated expiration: 1909-10-11

Description

(No Model.) 5 sheets sneen 1.

W. J. BARRON, 1?. X. WAGNER, 81 A. DBNSMORE.

' TYPE WRITING MACHINE. 1

No. 484,132. Patented 001. 11, 1892.

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5 Sheets-Sheet 2.

PatentedOct. 1 1, 1892.

(No Model.)

W. J. BARRON, F. X. WAGNER, & A. DENSMZORE.

TYPE WRITING MACHINE. No. 484,132.

me mama PEYiRS ca, nmwumm, vusnmrn (No Model.) 5 Sheets-Sheet 4.

W. J. BARRON, F. X; WAGNER, & A. DENSMORE. TYPE WRITING MACHINE.

No.- 484,132. Patented Oct. 11,1892.

(No Model.) 5 Sheets-Sheet 5.

W. J. BARRON, F. X. WAGNER, 8: A. DENSMORB. TYPE WRITING MACHINE.

No. 484,132. I Patented Oct. 11, 1892.

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WALTER J. BARRON, FRANZ X. WAGNER, AND AMOS DENSMORE, OF

NEW YORK, N. Y; SAID BARRON AND WAGNER ASSIGNORS TO SAID DENSMORE.

TYPE-WRITING MACHINE.

sPEcIFIcATIoR forming part of Letters Patent No. 484,132, dated October 11, 1892.

Application filed October 28, 1889 Serial No. 328,371. (No model.) A

To all whom it may concern:

Be it known that we, WALTER J. BARRON, FRANZ X. WAGNER, and AMOS DENSMORE, citizens of the United States, residing at New York city, in the county of New York, State of New York, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

Our invention relates to type-writing machines in which a separate fin ger-key and typelever are used to impress each letter or character; and the objects of our invention are, first, to propel the paper-carriage with the spring which operates the universal bar;

' second,to operate the letter-space movement with a push-pawl acting upon a rack having its teeth inclined in one direction and arrest it by a pawl acting upon a rack having its teeth inclined in the opposite direction, the retaining-pawl being connected with the universal bar, and also to provide a follower-dog to prevent the carriage from moving when a key is struck and also look said carriage'when it is taken from the machine and unlock it as it is let down or replaced; third, to provide the frame and carriage with means to render the latter removable, and thereby prevent ta mpering therewith; fourth, to provide means for operating the universal bar located above the finger-key levers or at a point above the bottom of said levers; fifth, to provide the machine with a square platen independent of the feed-rolls.

Other means for retaining the key-levers and the keys in position will be hereinafter described in connection with the drawings, in which 7 Figure 1 is a top view of a type-Writing machine constructed in accordance with our invention with the carriage guiding frame partly broken away. Fig. 2 is a longitudinal vertical section of the same. view of the frame of the machine, showing the carriage advancing and retaining mechanism. Fig. 4 is aside view of the line-space-operating and paper-feeding-in mechanism. Fig. 5is a vertical section of the paper-carriage, taken from the opposite end of that shownin Fig.

Fig. 3 is a rear 2, with the hand-levers and other parts in position to facilitate the introduction of the paper or to permit the printing to be examined. Fig. 6 is a perspective view of the finger-key and of one of the key-levers. Fig. 7 shows in side view the rear end of one of the key-levers, with modified means to connect it with the universal bar, shown in section. Fig. 8 is a top view of the rear end of a few keylevers, showing the means to retain them in position and united to the frame of the machine. Fig. 9 is a top view of a rod and connections to operate the propelling and the retaining pawl of the paper-carriage. Fig. 10 is a side view of the bearing-plate for the linespace lever. Fig. 11 is a side view of a linespace leverz. Fig. 12 is a side view of the locking-lever. Fig. 13 is one end plate of the paper-carriage frame with the ribbon-moving plate alongside. Fig. 14 is a transverse section of the paper-table. Fig. 15 is a transverse section of the paper-directing plate. Fig. 16 is afront view of the ribbon-propelling mechanism. Fig. 17 is a perspective view of one of the type-levers, its bearing and operating lever and connecting-rod. Fig. 18 is a plan of the carriage with the paper-feeding rollers, the ribbon-spools, and the bearings for the latter removed from said carriage. Fig. 19 is atransverse sectional elevation of the same.

In said drawings, A represents the baseframe of the machine, A the sides, and A the top frame, all rigidly united together, the frame A consisting of a downwardly-flanged ring having four arms A, by which it is secured to the sides A Upon the frame A are secured the bearings B of the type-levers b, said levers being pivoted thereto at 17 Each lever-b is operated by means of a bellcrank lever b pivoted to the bearing B at 6 The opposite end of the lever b is provided with a loop if, having a rectangular eye, through which the lever 19 passes loosely. The angular portion of the bell-crank lever 12 has a pin Z), to which is pivoted the upper section 0 of a connecting-rod to operate the type-1ever. The lower section 0 of said connectingrod is pivoted at c to a strap 0 attached to the key-lever C. To render the connectingrod longitudinally adjustable, thelower end of the section a and the upper end of the section 0 are provided with transverse serrations 0?, adapted to interlock together, and they are clamped together by a longitudinally-split spring-sleeve 0 in form of a C in cross-section. Each bearing B has its outer end secured to the top frame A by means ofa screw B The outer half of said bearing is in the form ofan inverted trough, ([1,) to the sides of which the pivots b and b are secured. The upper end of the section 0 of the connecting-rod is flattened, so as to lay alongside of the bell-crank lever within said trough of the bearing B when the type-lever is at rest. The inner half of said bearing isa continuation of the bottom onlyof the trough and extends toward the center of the top frame A more than half of the length ofits radius, and at its inner end its sides are flanged down to provide an in verted-V-shaped groove b? to receive a wedge-shaped projection 5 upon the type-lever about half-way of its length and guide the type at theinner end thereof in the proper place to make an impression. The key-levers have their rear ends pivoted to a cylindrical rod A which extends from one side of the frame to the other. Each lever has a semicircular notch in its upper edge to receive the under side of the rod A and to retain said parts in engagement and the finger-keys elevated springwires C- are used. Said wires are preferably bent double in the middle of theirlengths, and the looped end thus produced is inserted under a bracket A, projecting inwardlyfrom the rear of the machine, and adjustably retained by screws passing through its end and through the sides A of the frame. The portions of the wire adjacent to the looped end are made to bear upon the rod A and the ends are made to engage under small hooked portions 0 projecting from the side of the body of the key-lever. To prevent the rod A from sagging, it is sustained in the middle of its length and at other points by screws A passing through lugs projecting inwardly from the rear bar of the frame A. Each key-lever is provided at its front end with afiattened tubular'key-holder C, secured thereto, and within the upper end of said holder is inserted the flat stem C of the finger-key C. To guide and retain the keyholders in a vertical position,they are made to pass through vertically-slotted bridges A that may be either solid or in the form of hollow parallelograms orin the form of a trough and that extend from oneof the sides A to the other and have their ends secured to the frame. The key-levers are retained apart in proper position between their two ends by bent wires C that straddle and frictionally clamp every alternate key-lever.

To produce the letter-space movement or advance of the carriage D toward the lefthand side of the machine, said carriage is provided with two racks D and D in the rear thereof. Said racks are rigidly attached together at' a short distance apart by screws and parting-pieces D They are carried by arms D pivoted to the ends of the carriage by screws at D, and the right-hand arm D extends forward beyond said carriage and terminates in a handle D upon which the operator can press to raise the racks from engagement with their pawls when he desires to slide the carriage to the right or left. Otherwise said racks are retained normally in engagement with saidpawls by the spring D having one end secured to the carriage and the other end pressing upon the rack-bars. The racks D D have their teeth beveled in opposite directions. The teeth of the inner rack D receive the end of the push-pawl d and of the springdog 0F, and the teeth of the outer rack D receive the upper end of the flat spring-rod (1 which prevents the carriage moving more than one space. When a finger-key is struck, the rod d drops out of engagement with one tooth. It then returns and engages the next tooth by means hereinafter described and is carried forward by the rack until stopped by the setscrew (V, Fig. 3, projecting laterally from a post 01 standing upon aplate ALsecuredto the top of the frame A by means of thescrews 2.

The push-pawl d is retracted for engagement with a new tooth by pressing upon any one of the finger-keys, said pressure being transmitted by the universal rod E, that is suspended by means of linksE from the crankarms E Figs. 3 and 9, inwardly projecting from the ends of a rod E which is pivoted to the sides A of the frame. This rod E has also a crank-arm E in the center of its length. Said crank-arm also extends inwardly of the machine and is longer than the crank-arms E and has secured to its free end an arm E to which the lower end of the rack-retaining rod d is pivoted. The universal rod E is located at a point higher than the bottom of the key-levers O to facilitate its connection with the spring-pawl 01 and it is shown ata point even higher than the top in Figs. 1, 2, and 3, and said key-levers are connected therewith by means of hooks e, having their lower ends pivoted to said key-lever and their hooked upper ends resting upon the universal bar. In the modification shown in Fig. 7 the hook e is made integral with the key-lever and the universal bar E is introduced under said hook through a groove 6 alongside thereof, and the connecting-rods E, that unite the universal bar to the crank-arms E and E is longer than in Figs. 2 and 3. In Fig. 3 only a few hooks e have been shown, so as to simplify the figure. The push-pawl dis pivoted to the upper ends of an arm d, which has at its lower end a horizontal arm d forming therewith a bell-crank that is pivoted by means of a screw v and rod E can be adjusted relativelyto the pivot d of the bell-crank the length of the oscillation of the push-pawld can be regulated. The free end of said pawl is retained in contact with the teeth of the rack D by means of a light spring d, pressing against the under-side of said pawl. To press the push-pawl d forward and advance the paper-carriage, the main spring A is used to press laterally against the pawlcarrying arm (i Said spring is flat and has its upper end bent to one side at right angles to its body and passed through a rectangular perforation in the bracket A and is fastened thereto with a screw. Said springalso operates to hold the rod E normally elevated.

To prevent thepaper-carriage from moving farther than desired under the impulse of the push-pawl and main spring when a key is released after being struck, the friction-dog d has its beveled point made to bear against the teeth of the rack Di Said dog is pivoted to a plate f secured to therearsideof the guide-rail F, upon which the rear wheels of the carriage run. A light spring f attached to the heel of the dog d retains the bevel-point in contact with the rack. A second function of the dog d is to look the carriage to the guide-rail when said carriage is raised or removed from the machine. For this purpose a bell-crankshaped dog f is pivoted, also, to the plate f and has its upper end shouldered to engage under the free end of the dog d under the impulse of the springf that unites it-to the heel of the dog d In Fig. 3 the parts are shown in normal positionfor use, with the lower end f? of lever f resting upon the bracket A and its shouldered upper end thrown out of engagement with the under side of the dog d but when the carriage and its supporting-frame, carrying the plate f, are elevated (see Fig. 2) the lower end of the leverf is raised out of contact with the plate A and the shouldered 'upper end thereof is thus permitted to engage and lock the dog (1 in contact with the rack. By this construction the carriage is automatically looked as soon as it is lifted by raising the frame, consisting of the guide-rails F F and end straps F and it is unlocked as soon as it is replaced in position for use and the print-line can be continued from where it was left off.

The carriage-supporting frame consists of two end straps F united at a suitable distance apart by the rear guide-rail F and the front guide-rail F for the carriage. The straps F rest on top of the sides A of the frame The rear ends of the straps {F are bent slightly upward and rearward and are provided with subst'antially-cylindricalends to constitute ajo'urnal F that is received in the bent end of an arm A extending rearwardly from the two sides A of theframe, and. to preventany lateral displacement of the carriage-supporting frame and permit it to be tilted rearw'ardly even beyond a vertical position the arms A have vertical slots to receive pins F projecting rearwardly from the journals F through said slotted bearings, so that the front of the carriage can be elevated and made to occupy a position much to the rear of that shown by dotted lines in Fig. 2,'or it can be lifted entirely off its bearings.

The feed-roll K hasits journal is retained in bearings d',formedin the end plate of the carriage D. Uponone end of said'journal the ratchet-wheel k is secured, and in engagement with the periphery of said wheel is the upper pawl gand also the lower pawl g of the line-space lever G, the two pawls being also connected together bythe coil-spring 9 The lever G is mounted on apivot-screw 9 that is secured to a plate 9 and said plate has one end pivoted at 3, Fig. 10, upon the journal is of the feed-roll, while the opposite end rests upon the front longitudinal bar of the paper-carriage D, and it is normally kept down upon said bar by means of the connecting-rod h of the latch-lever H, said .connect ing-rod having aboutthe middle of itslength a laterally-extending-pin k that is normally latched or retained in a notch in the rear side of the standard D projecting upward from the end plate of the paper-carriage. 'Therforward end of the rod h is slotted and straddles a pin or screw 9 The rear end of this red is also slotted and receives the upper end of'the lever H, to which it is connected by means of a pin h Said upper end of lever His in the form of a hook if, so as to bear upon a triangular pin 9 projecting laterally'from the upper pawl g of the line-space lever and which locks said pawl'or its triangular pin in engagement with the ratchet-wheel when the front end of thelever H is lifted or pinched against the under side of the lever G to release the rod h, and consequently the plate g topermit the then connected levers GH to be elevated to the position shown in Fig. 5v and the feed-rolls to be thus rotated. r

The roll K is rotated by frictional contact with the roll K or with the paper between them. To cause said friction, the bearings K of said roller K are pivoted at atto the end plates of the carriage and haveshoulders on their front edges, against which press, the

outer ends of fiat springs K ,'s'ecured to the front bar of the paper-carriage, said springs being adjusted thereto'by' meansof screws KiFig. 1. v

The platen I consists-of a square rod covered with rubber or other suitable; material and can be turned byhand to presentfeither prevented from rotating bya spring 1 secured to one of the end plates and pressing against one of the sides of the square head of said platen. Above the platen and loosely inclosing three of its sides there is a curved plate L to direct the paper under and beyond said platen, said plate L being stationary and secured to the end plates of the paper-carriage by lugs L and screws inserted therein and'in the holes Z of the end plates. In front of the frontedge' of the movable paper-table J there is a narrow segmental plate L to direct't'he paper toward the feed-rolls. The paper-table J is pivoted at j, Fig. 14, to the end arms L of the plate L and is pressed awayfrom' in front ofthe platen, when the parts are in normal position to print, by an arm 9 extending down from the plate g and pressing: against a lug j on one end of the paper-table; but when the levers G H are turned up, as shown in Fig. 5, the paper-table is released from engagement by the arm 9 and is advanced under the platen by its spring J The carriage is not intended to be raised when it is desired to see the writing; but the paper P is intended to be rolled forward and upward to the front side of roll K when the line-space lever G and the latch-lever H under it are'pinched and raised. When these levers are lowered to'normal position, the paper will return to printing-point. When the flevers' G H are in their normal position, Figs.

2 and 4, the platen I is exposed; but'when they are raised the platen I is, as shown in Fig. 5, by the movable paper-table J to facilitate the introduction of the paper into the machine. The levers must be slightly raised when the paper is inserted in the machine. This permits the paper to be slid in from the rear past the platen, as the movable papertable J drops forward until its front end is beyond the under side of the said platen, the downward motion of the paper-table being aided by the spiral spring J that has one end secured to the side frame J of said papertable and the other to the carriage. After the paper has reached the rear of the feed-rolls K and K it is advanced between and beyond them by elevating the levers GH still higher, orsubstantially as shown in Fig. 5, and pulling the paper by hand a half an inch or more to insure its being clamped by the feed-rolls when the levers are returned to their normal positions.

To retain the ribbon R elevated nearly in contact with the platen or with the paper upon which the printing is to be done, a thin and narrow strip of sheet metal n extends fore andaft of the machine under said platen, alongside of the printing-point. The front end of said strip at is secured to the front guiderail F and carries a pointer n Figs. 1 and 2, that extends upward either upon or under the scale N, carried by the carriage, and indicates upon said scale the position of the last letter printed. The ends of the scale N are secured to the front rail of the carriage by means of straps Nfithat extend in front of the feedroll K andhelpto sustain'the front end of the paper upward, while the middle wire finger N extends still higher. 1

The ribbon R is carried upon spools R and R mounted on brackets R attached at diagonal corners of the paper-carriage. To antomatically wind the ribbon the distance of one notch of the ratchet-wheel R, mounted upon the axle of the spool R every time the hand-lever G islifted to advance the paper one line, a pawl r is made to engage with the ratchet-wheel R by means of a spring rhpressing against a radial lug on its hub. The pawl r is pivoted on one end of a lever r that is pivoted about the middle of its length at r to the bracket R The opposite end of the lever r is kept normally elevated by a small spring r, and is thus pressed against the'under side of the plate R Figs. 4 and 13, which has a cut-away or beveled portion 0"", into which cut-away recess the end of the lever r enters under theimpulse of its spring r when the plate R slidingly attached to the frame D, is moved rearward toward the operator, and thus causes the pawl r to engage under a new tooth of the ratchet-wheel R but when the plate R is released and permitted to move forward under the impulse of the spring 8,

attached to its rear, its beveled portion 1" rides over the spring-suspended end of the lever r and elevates its opposite end, carrying the pawl r, and thus revolves the ribbonspools a short distance.

The plateR is moved forward toward the opperator by a pin 4, projecting from the side of the pendent arm of the lever G, pressing against a lug R projecting upward from the upper edge of the plate R every time the lever G is lifted and rocked upon its bearing to advance the paper-feed roll one line.

Having now fully described our invention, we claim 1. In a type-writing machine, the combination of key-levers and straps thereon with type-levers and connecting-rods uniting them to the straps of the key-levers, said connecting-rods consisting of two sections having serrations on their adjacent ends and a sleeve embracing and uniting said serrated ends of the sections, substantially as described.

2. The combination of key-levers and typelevers with trough-shaped bearings B for said type-levers, bell-crank levers Iii-pivoted, also, to said bearings and provided with a loop 19 and connecting-rods having their upper ends pivoted to the bell-crank and flattened to enter between the sides of the trough-shaped bearings alongside of the bell-crank, substantially as described.

3. The combination of the frame of a type writing machine, the rod A secured thereto, the bracket A, and key-levers having hooked portions 0 with the wires 0 under the bracket and hooked portions and resting upon the rod A substantially as described.

4. The combination of the frame of a type- I! I A writing machine, the guide-bridges A having one edge vertically slotted for the reception and the pawl-carrying arm d pivoted to the bracket, with a spring A pressing against said arm d, a pawl upon said arm, and the rack of the paper-carriage engaging with said pawl, substantially as described.

6. The combination of a paper --carriage frame, two racks having their teeth in the same horizontal plane and inclinedin opposite directions and rigidly secured together, but hinged to said carriage-frame, a pushpawl 61, in engagement with one of the racks, and a retaining pawl or rod d ,in engagement with the other rack, and the universal rod E, connected to said rod (1 substantially as described.

7. The combination of a paper carriage frame, two racks having their teeth in the same horizontal plane and inclined in opposite directions and rigidly secured together, but hinged to said carriage-frame, and havmg a handle D extending in front of said carriage, and a pawl in engagement with each rack, substantially as described.

8. The combination of a paper -carriage frame, two racks having their teeth inclined in opposite directions and rigidly secured together, but hinged to said carriage-frame, and a pawl in engagement with each rack with the universal bar of a type-writing machine and means, substantially as described, for connecting the universal bar with the pawls operating the paper-carriage, substantially as described.

9. The combination of. a paper-carriage frame, two racks having their teeth inclined in opposite directions and rigidly secured together, pawls cl and d ,in engagement with said racks, and the dog (1 also in engagement with one of the racks, substantially as described.

10. The combination of the type-bars and their bearings, the plate A above said bearings, the paper-carriage and its guide-rail F, and the rack D and its pawl d with the dog (1 and the bell-crank-shaped dog f substantially as and for the purpose described.

11. The combination of the frame of a type- Writing machine and its rearwardly-extended arms A having bearings at the rear ends thereof and slots in said bearings, with the carriage-supporting frame having end straps F rearwardly projecting and provided withj ournals F and pins F radially extending therefrom, substantially as described.

12. The combination of the paper-carriage frame, its revoluble square platen and retaining-spring I and two paper-feed rolls having their point of contact on a level above said platen, substantially as described.

13. The combination of the paper-carriage frame, its revoluble polygonal platen and retaining-spring 1 two feed-rolls having their pointof contact on alevel above said platen, anda ratchet-wheel upon the end of one of the feed-rolls with a linespace lever G and its pawl in engagement with said ratchet-wheel, substantially as described.

14. The combination of the paper-carriage frame, its revoluble polygonal platen and retaining-spring I afeed-roll above said platen, a ratchet-wheel upon said feed-roll, and a plate 9 pivoted upon the journal of the feedroll, with a line-space lever pivoted upon said plate 9 and its pawl in engagement with the ratchet of the feed-roll, substantially as de' scribed.

15. The combination of the paper-carriage frame, its polygonal platen, a feed-roll above said platen, a ratchet-wheel upon said feedroll, and aplate g pivoted upon the journal of the feed-roll, with a line-space lever pivoted upon said plate 9 and its pawl in engagement with the ratchet of the feed-roll, a triangular pin g projecting laterally from the pawl, and the lever H, having a hooked end adapted to rest upon the pin g substantially as described.

16. The combination. of a paper-carriage frame, a paper-feed roll, a ratchet upon said roll, and a plate 9 pivoted upon the journal of said roll, with a line-space lever upon said plate g and its pawl in engagement with the ratchet of the feed-roll, a pin g projecting laterally from the pawl, and the lever H, having a hooked end adapted to rest upon the the journal of the feed-roll, and the rod h,

having one end pivoted to the lever H and the other end loosely retained by the plate 9 and a pin 71 between. said two ends, in engagement with the notch of theframe-standard D substantially as described.

18. The combination of the paper-carriage frame, its polygonal platen, a feed-roll above siid platen, and a paper-directing plate in front and over the platen, substantially as and for the purpose described.

, 19. The combination of the paper-carriage frame, its polygonal platen,,a feedroll above said platen, the paper-table J, movable under the platen and having its side frames J 3 mounted upon the journal of the feed-roll, and the spring J connecting it with the paper-carriage f rame,substantiallyas described.

20. The combination of thepaper-carriage, its polygonal platen, a feed-roll above said platen, the paper-table J, movable under the platen, and plate g pivoted upon the journal of the paper-feed roll and having an arm 9 adapted to press against the edge of the paper-table to normally uncover the platen, substantially as described.

21. The combination of the paper-carriage frame, its polygonal platen, and a feed-roll above said platen with the pressure-roll K its bearings K and springs K carrying said bearings, said springs being secured to'the paper-carriage frame, substantially as described. I

22. The combination of the paper-carriage frame, its polygonal platen, a feed-roll K above said platen, a pressure-roll K in front of said platen, an inking-ribbon and a metal strip 'n under said platen, a number-scale, and a pointer projecting up from said-strip, substantially as described.

23. The combination of the paper-carriage frame, its feed-roll, and a polygonal platen