US1270986A - Type-writing machine. - Google Patents

Description

I. E. STRAUB.'

TYPE WRITING MACHINE.

APPLICATION FILED APR-14.1917- Patented July 2,1918.

2 SHEETS-SHEET I.

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J. E. STRAUB.v

TYPE WRITING MACHINE.

APPLICATION man AP11.14.1911.

2 SHEETS-SHEET 2.

Patented July 2, 1918.

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" .turnier um JOSEPH E. STRAUB, OF ILEON, NEW" YORK, ASSIGNOR TO REMINGTON TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK;

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Application filed April 14, 1917.

To all whom it may concern:

yBe it known that I, JosnrH E. STRAUB, citizen of the United States, and resident of Ilion, in the county of Herkimer and State of New York, have invented certain new and useful lmprovements in Typewriting Machines, of which the following is a specification.

My present invention relates to devices for preventing the locking or arresting of the carriage oftypewriting machines as a result of the defective setting or retracting of the tabulator stops, and more specifically is concerned with the provision of new and improved devices that are commonly termed full stroke devices for use in connection with the key setting or retracting means for tabulating stops ofthe magazine style.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, combinations y of devices and arrangements'of parts hereinafter described and particularly pointed out in the claims. Y

ln the accompanying drawings which illustrate the preferred form of my invention,

Figure 1 is a fragmentary side elevation, partly in section, of a Monarch typewriting machine embodying my invention.

Fig. 2 is a fragmentary perspective view of a front post. v

Fig. 3 is a fragmentary front to rear vertical sectional view showing said invention applied to the stop setting key of the tabulating mechanism;

Fig. a is a fragmentary View, corresponding to Fig. 3, but showing the full stroke devices in a different position. i

Fig. 5 is an enlarged vertical sectional view, taken on the plane indicated by the dotted line w in Fig. 3, and looking-in the direction of the arrows at said line.

Fig. 6 is a fragmentary detail view, partly in section.

As appears from Fig. 1 the main frame of the Monarch machine comprises a base 1, posts 2, and a top plate 8, above which is arranged a platen 4t mounted on a carriage 5 that cooperates through anti-friction balls 6 with stationary track-ways 7 and 8. rl`he arriage is urged to the left by aspring drum and its step-by-step movement is controlled by escapement devices (not shown).

Tabulating mechanism of the usual con- Specification of Letters Patent.

Patented July 2, 191%..

sei-iai No. ieaoos.

struction is provided, said mechanism comprising a toothed bar 9 on which are mounted column-stops l0 that are adapted for cooperation with denominational stop levers 11 pivoted at 12 in a detachable frame 13, said levers being actuated by devices comprising slide bars 14 and arms 15 secured to shafts 16 on which are also mounted tabulator lever arms 1.7 that, with thearms 15 and pivots or shafts 16, constitute bell cranks, said bell cranks being mounted on a detachable Aframe 1S at the front of the machine. The lever arms 17 are provided with tabulator keys 19, and when one of the keys 19 is depressed it projects the upper end of the associate denominational lever 11 into the path of the column stops and also operates to release the carriage from the control of its escapemcnt mechanism. The carriage re,- leasing devices comprise a bail 20 arranged behind the lower ends of the levers 11 and operative thereby. Said bail is pivoted at 21 on the frame 13 and is connected by devices comprising an arm 22 and a link 23 with the usual lifting device, not shown, that disengages the carriage feed rack from the feed pinion. i

ln the Monarch machine` a stationary holder or magazine 24 is provided in which the column stops 10 are stored, said stops being transferred from the magazineto the stop bar 9 and retracted from said stop bar to the magazine by key controlled setting and retracting devices. The stop setting devices comprise a slidable block 25 mountod'in a vertical grooveat the left end of the stop magazine and connected `by an angular link 26 with a bell crank27 that is operative by a rod comprising two parts 28 and 29. The part 28 is the rod properand at its forward end is threaded to coperate with the threaded bore of the part 29 which is in the form of a tube or stem which is provided at its forward end with a key or button 30. The threaded engagement of the two parts 28 and 29 of the key rod provides for a relative adjustment between them. The threaded portion of the rod 28 also receives a check nut 31 which coperates with the end of the tube 29 to hold the parts 28 and 29 in set relationship. The tube or part 29 passes forward through holes in the ribs of the left-hand front post 2. f These holes, which are indicated at 32, Fig. 2, resemble key-hole slots having round body portions and narrow, connected portions 33 having horizontal parallel walls. The stop retracting devices comprise a block 34 that is mounted to slide in a vertical guideway behind the block 25, the block or retractor being connected by an angular link 35 with key-operated devices not herein shown but corresponding with those above described for the stop setting mechanism. It is not thought necessary to describe in further detail vthe stop setting and retracting mechanisms nor toreXplain their operation, since the parts correspond with and operate like those found in the Monarch tabulating mechanism. It need only be said that when the keyis pushed in it operates through the bell crank 27 and link 26 to lower the block 25, which block, acting on the lefthand stop 10 within the magazine, pushes said stop downward on to the column stop bar 9. A spring 27 a 'restores the key 30 and its train of connections to normal position. Thus ak plurality of stops may be set at desiredpositions along the column stop bar by operation of the key 30, the carriage being properly spaced between operations. Similarly after the tabulating operations are nished the stop retracting key may be operated'to clear thev stop bar 9 and restore 'the stops 10 ,to the magazine. f

One drawback to the employment of stop controlling devices for ejecting tabulator stops from the magazine and retraeting them from the stop barinto the magazine is that forone reason or another, such as improper actuation of the mechanism, the stop may be only partially ejected or retracted, leaving ,it partly ,in the magazine and partly on vthe vstop rod so that if the carriage be moved with the Vstop in this position the carriage is likely to become jammed and the stop distorted. Inl order to minimize the improper orimperfe'ct yactuation of the mechanism,

full stroke'gdevicea as they are called, are

provided, the purpose of these devices being to insure a full and complete actuation of the key .or keys governing the stop controlling mechanism. The principal object of my present invention is to Provide new and improved yfull stroke devices and further to provide key 'actuated means for releasing ,orfthrowing such full stroke devices out ot' use at willprior tothe completion of the full stroke,`aresult which is believed to be entirely novel. My novel full stroke devices comprise ajsleeve or tube`36 which, as best shown in Fig. 6, fits loosely over the key *1stem29y1The sleeve 36 is substantially the same'length as the stem and is confined between the rear face of the key button 30 and the check nut 31, ywhich* serves to jam the sleeve against the key button and hold it in fixed relationship with the two-part member28, 29. The sleeve 36 lits slidably in the holes 32 on the left-hand front post 2 and rod 2S, 29. rIhe top of the sleeve is formed with a series of teeth 37 providing a ratchet, while projecting from the right-hand side of said sleeve are two ribs or tins 38 and 39, these ribs iitting slidably in the narrow horizontal portions 33 of the slots 32, the construction insuring the sleeve against accidental turning on its support, viz., the tube 29, the result being that the ratchet 37 is always at the top o'l' the sleeve and the ribs or devices 38 and 39 always at its righthand side. Coperative with the sleeve 3G is a pawl member which is in the form ofi a three-armed lever 40 (Figs. 3-5), said lever being pivoted at 41 on a lug 2n on the front post above the sleeve. The lever 40 comprises three substantially radially disposed arms 42, 43 and 44. The arm 42 inelines downward and rearward and is forked or bifurcated, t-he body of said arm being twist-ed so that the forked portion lits over or straddles loosely the sleeve 36. The two arms or forks 42a of the bifurcated portion extend downward parallel with each other at the sides of the sleeve, the right-hand arm 42:L being disposed between the two ribs 3S and 39.y The lower edge of the part connecting the forks or arms is bevel sharpened, as indicated at 45, to provide a tooth that eooperates with the ratchet teeth 37. These ratchet teeth incline 'from front to rear so that when the tooth 45 is engaged with the ratchet forward movement ot the push rod 28, 29 is prevented, the ratchet and the toothed arm 42 providing cooperating locking devices for this purpose. `The arm 13 extends rearward and its end is formed with a double bevel or sharpened to eoperate with the bent or V-shapcd free end oi a detent spring 46, the lower portion of which is U-shaped and tits around the rear rib ot the post 2, passing through a slot in said rib indicated at 21 and being secured at its rear by a screw 47. The arm 44 projects forward through a slot or opening 4S in the forward rib of the post 2, said arm 44 heilig fashioned to provide a linger piece or key for manipulating the member 40.

It will be noted that the arm 43 is engaged with the under side of the V-shaped end of the spring 46 and that the wide tooth 45 of the arm 42 is engaged with the ratchet 37, the rear end of the device or rib 3S being contiguous to the outer or right-hand arm As a result of this turning the tooth 45 will be swung up auton'ia-tically out oi engagement with the ratchet 37 while the arm 43 will be swung to the upper side of the V- end of the spring 46, which will coperate with said arm to hold the member 40 in its inoperative position. VIt will further bei noted that the automatically operating device or rib 39 forces the arm 42a into contact with the rear rib of the post 2, which thus serves as a stop to limit rearward movement of the key 30 and connected parts. If the key 30 be now released it'will be restored to normal position along with the train of devices which it actuates, this restoration being largely accomplished by the return spring 27a. As the parts near the end of their return movement the ribBS, coming in contact with the arm 42a will automatically swing the member 40 back to the Fig. 3 position, where the tooth 45 will again be ready for coperation with the ratchet 37.

' Sometimes, as when parts becomejammed, the key 30 can be pressed in only part way, and it is desirable in such event to restore the key to normal position before again actuating it. In such event the iinger piece or release key 44, which is conveniently arranged at the front of the machine and in juxtaposition to the key 30, affords a ready means for at will throwing the full stroke or key locking devices out of action; that is, assuming that the key 30 has been pushed in half way and it is desired to restore it to its forward position, the operator presses down the key 44 from the `Fig. 3 to the Fig. 4 position, thus throwing out the locking tooth 45.

It will be observed in connection with my invention that in order that the parts 40 .and 36 should properly coperate, they must'normally be maintained in a certain relationship, asin Fig. 3, the same being true of their abnormal or Fig. 4 relationship; while at the same time it is necessary in assembling the mechanism to vary the relationship between the key 30 and the rear vpart of the train thatit controls. My improvements afford a ready means of accomplishing such adjustment and variation without affecting the relationship `ofthe parts 40 and 36, it being only necessary to loosen the check nut 31 and turn the rod 28 in or out to the necessary eXtent. There is thus provided a Construction which avoids lost or waste motion since the parts can be adjusted to throw out the full stroke lock at once on completion of the stop adjusting operation. Also my improvements may be applied to existing constructions without alteration of suchy constructions, said improvements eonrprising" essentially the sleeve 36 provided with the ratchet 37 and the devices 38 and 39 for automatically controlling the pawl member 40, besides said pawl member itself. j l

While 1 have described my invention in n the stop controlling mechanism it will bev understood that said invention readily may be applied to stop retracting devices as well.

lt will be observed that by my present invention there is provided `in connection with the tabulating mechanism of al typewriting machine full stroke devices and a release key for at will rendering said `full stroke devices inoperative; that full stroke devices are provided in combination with key actuated devices for controlling the column stops in their to and tro movements between the stop magazine and the stop bar; that said full stroke devices are automatically controlled and that hand actuated means, comprising a release key, is provided for also controlling the full stroke devices; that the full-stroke devices have the additional function of a stop to limit the movement of the key actuated devices; that said full stroke devices operate to lock the key of the stop controlling devices until its stroke is entirely completed but that a separate key may be operated to release the locking devices priorto the completion of said full stroke; that the full stroke devices comprise ratchet teeth formed on a reciprocatory part or slide rod in combination with a locking pawl or lever which is settable in connection with the detent spring; that said lever in the present instance is provided with threeV arms, one serving as a finger piece or key; that said key is at the front part of the machine where it may be conveniently manipulated; and that the push rod aforesaid comprises two relatively adjustable parts so that said ratchet teeth which have an unvarying relationship ywith one fof said 'parts may be maintained, while the relationship of saidpart in respect to the other devices in the train of mechanism may be varied as found `necessary in assembling the mechanism.

, AVarious changes may be made without de parting from my invention.

`What ll claim as new and desire to secure by Letters Patent, is :v

1. ln tabulating mechanism for typewriting` machines, the combination off a stop magazine, a stop bar, stops, key actuated devices i'or controlling said stops in `their movements between said magazine and said stop bar, devices becoming automatically effective, after said key actuated devices are started, to lock said keyactuated devices against retraction until the key stroke is completed, means for automatically releasing said locking devices, andhand actuated means for also yreleasing said locking devices.

.2. ln tabulating mechanism for typewriting machines, the combination of a stop magazine, a stop bar, stops, key actuated devices for controlling said stops in their movementsbetween said magazine and said stop bar, devices becoming automatically etfec-tive, after said key actuated devices are started, to lock said key actuated devices against retractionuntijl the keystroke is completed, ymeans for automatically releasing said locking devices, and a 'separate key that maybe operated to release said locking devices prior to the `completion of the vfull stroke of said keyactuated devices.

3. In tabulating mechanism for typewritingy machines comprising stop ejecting and retracting devices, the combination ot' a key, atrain of connections between saidkey and certain of said devices, said train comprising a reciproeatory part,-a set of full stroke devices associated with' said key and comprising a locking lever that is automaticallyset in operative and inoperative positions by the action ofdevices on said reciprocatory part, and a key-for setting said lever at will. e

d. In tabulating mechanism for typewriting machines,` full stroke devices for the stop cont-rolling.;` mechanism comprising a locking pawl and automatic means for throwing said pawl into and out ofuse, said pawl being provided with a-key by which it may be thrown out of use at will after the beginning ot the operation of said stop controlling mechanism.

5. In tabulating mechanism for typewriting machines comprising stop ejecting and retracting devices, the combination of a key, atrain of'connections betweensaid key and certain of said devices, said train comprising a `reciprocatory part, a set of full stroke devices associated .with said key and comprisingv a locking lever that is automatically set in operative and inoperative positions by devices onl said reciprocatory part, ratchet teeth'on said reciprocatory part, said lever being providedwith a tooththat coperates with said ratchet teeth, a detent springl for holding said lever in and out of operative posit-ion, and a separatekey vfor setting said lever out of operative position at will.

6. In tabulating mechanisnrffor typewriting machines comprising stop ejecting and retracting devices,'the combination of a key, a train of connections between said key and certain of said devices, said train comprising a reciprocatory two-part member, said parts being relatively adjustable, a toothed member having a fixed relationship with one ot said parts, a pawl member ladapted to cooperate with said toothedl member, automatic means for throwingfsaid pawl into and vout of engagement with said toothed. member, and fa' linger piece on said, pawl `for controlling it independently of said automatic v means. o Y

7. In tabulating mechanism for typewriting lmachines comprising stop ejectin`g and retracting devices: theY combination of -,a

key; va train of connections between said key and certain oi said devices, said train comprising a reciprocatory two-part member, and a locking nut holding the parts ot said member in fixed relationship; a sleeve provided with ratchet teeth and projections, said nut cooperating to set said sleeve on said member; a forked pawl loosely embracing said sleeve and coperative with said ratchet teeth; a double acting detent spring co-acting with said pawl, said projections operating automatically on said pawl to move it in and out of operative relationship with said ratchet teeth, and a linger piece at the front of the machine operative on said pawl for throwing it out ot use at will.

8. In tabulating mechanism tor typewriting machines, the combination of a stop magazine, a carriage provided with a stop bar, stops, devices for controlling said stops in their to and 'fro movements between said magazine and said stop bar, said devices comprising a push rod provided with a keyv and also with ratchet teeth, a detent spring. and a lever having three arms, one serving as a linger piece, another coperating with t-he .detent spring, and the third arm cooperating with said ratchet teeth.

9. In tabulating mechanism for typewriting machines, the combination ot stop setting and retracting mechanism inclmlinf;v a key rod, and full stroke devices comprising a pawl member, and a member detmhably mounted on said key rod and provided with atchet teeth and means for throwing said pawl into and outI of engagement with said ratchet teeth.

10.4 In tabulating` mechanism tor typewriting machines, the combination of stop setting and retractingmechanism including a key rod, and full stroke devices comprising a pawl member, a sleeve provided with ratchet teeth and projections or ribs, said sleeve coperating with said pawl, and means for detachably securing said sleeve on said rod. 1l. In tabulating mechanism for typewriting -machines, the combination of stop setting and retracting mechanism including a key rod, and yfull stroke devices comprising a toothed member and devices spaced along said rod for :uiton'iatically operating said toothed member, said toothed member also cooperating with certain ot said spaced devices to arrest said rod.

l2. In tabulating mechanism for typewriting machines andin stop ejecting devices therefor, the combination of a stop magazine, a carriage, a stop ejector, devices for controlling the salne comprising a push rod lprovided with a key, and also with ratchet teeth, a detent spring. and a threearmed lever, one arm of said lever being provided with atooth adapted to coperate with said ratchet teeth, another arm of said narcose lever having faces adapted to coperate with said detent spring, and the third arm of said lever being employed as a finger piece.

13. In talonlating mechanism for type- Writing machines and in stop ejecting devices therefor, the combination of devices for controlling the stop ejector comprising a push rod provided With a key, said piish rod being also provided with ratchet teeth; a detent spring; a three-armed lever, one arin of said lever being provided With atooth adapted to coperate Wih said ratchet teeth, another arm of said lever having faces adapted to coperate with said detent spring, and the third arm of said lever being employed as a finger piece for setting said three-armed lever at Will in inoperative p0- sition; and devices on said push rod for automatically controlling said three-ar1ned lever.

Signed at Ilion, in the county of Herkimer and State of New York this 12th day of April, A. D. 1917.

JOSEPH E. STRAUB.

Witnesses:

MARY C. GLEAsoN, Gmo. E. NEALE.

Copies of this patent may be obtained for ve cents' each, by addressing the Commissioner of Eatents,

namen, W

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