US1817252A - Typewriting machine - Google Patents

Description

4, 1931- G. G. some 1,817,252

TYPNRITING MACHINE Filed April 19,1927 3 Sheets-Sheet I WITNESSES m I INVENTUR AITURNEY Aug. 4, 1931. s. G. some TYPEWRITING MACHINE Filegi April 19, 1927 3 Sheets-Sheet 2 JNVENTUR M ATTORNEY Wfi'NESSES M; w

Aug. 4, 1931. s. G. some TYPEWRITING MACHINE s Sheets-Shet s" 'Filed April 19. 192'! INVENTUR &m, a #5 ATTORNEY Patented Aug. 4, 1931 UNETED STATES PATENT OFFICE GEORGE G. GOING, OF MIDDLETOW'N, CONNECTICUT, ASSIGNOE, BY MESNE ASSIGN- MEETS, TO REMINGTON TYPEVJBITER COMPANY, A CGRPORATIQN OF NEW YORK TYPEYVRITING MACHINE Application filed April 19,

; extent of say, one, two and three minimum spaces, but may also be adjusted to providefor a variation from such spacing, as, for example, to provide for effecting at each actuation anirregular extent of line spacing correspondin to, say, 1 or 2 minimum line spaces, as may be desired.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices set forth in the following description and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters designate corresponding parts in the different views:

Figure 1 is a fragmentary, detail, enlarged, top plan view showing one end of a carriage of a typewriting machine equipped with the devices of my invention.

Figure 2 is an enlarged, detail, fragmen-- tary, vertical sectional View of the same with parts omitted, the section being taken on the line 22 of Fig. 1 and looking in he direction of the arrows at said line.

Figure 3 is an enlarged, detail, trans verse sectional view of the structure taken on the line 33 of Fig. 1 and looking in he direction of the arrows at said line.

Figure 4 is a view corresponding to Fig. 1, but showing the parts in front elevation.

vFigure 5 is a detail plan view of the sheet metal blank from which the line spacing, pawl-carrier is formed.

Figure 6 is an enlarged, detail, perspec- 1927. Serial No. 184,929.

tive view of the line spacing regulator or shield shown detached.

Figure 7 is a detail, fragmentary, top plan View, with a part sectioned away, of the pawl-carrier and the spring mounted thereon.

Figure 8 is an enlarged, Vertical sectional view of the carriage taken on the line 88 of Fig. 4 and looking in the direction of the arrows at said line.

Figure 9 is an enlarged, detail, fragmentary perspective view of the line spacing wheel and the detent therefor.

I have shown my invention embodied, in the present instance, in the carriage of a No. 6 Remington-noiseless machine. \Vhile the devices of my invention may be readily incorporated in such machine without modifying, or materially modifying, other structural features thereof, it should be understood that the invention is not restricted to employment in said machine but is of general application and may be employed in various styles of typewriting and like machines wherever found available.

In the present instance the carriage comprises a supporting rail or bar 1 to which end plates 2 are secured by screws 3. These end plates are also connected by suitable cross bars, one of which is indicated at 4;. The carriage rail 1 is grooved on opposite sides, as indicated at 5, to receive anti-friction rollers that in turn travel in grooved rails in the case shift frame, not shown. The usual means (not shown) are also employed in the rear of the carriage, which with the means described support the carriage for case shift movement as well as for letter space traveling movement under control of the usual letter space mechanism, not shown.

A cylindrical platen 6 is supported in the ordinary manner for rotative line space movement in bearing openings inthe end plates 2 of the carriage. The left-hand hub 7 of the platen extends through a bearing opening in the associated end plate and is normally connected by the usual platen clutch (shown in part in Fig. 8) with a line spacing wheel 8.

Ordinarily, heretofore, the teeth of a line spacing Wheel are such as to provide for the use of one tooth for the minimum l1ne space to be efiected, so. that the line spacing wheel is shifted the extent of one tooth for single spacing, two teeth for double spacing, and three teeth for triple spacing,- in accordance with the adjustment of the,

line space regulating device. By my present invention 1 provide for single, double and triple spacing as heretofore, and also provide for line spacing the platen irregular distances, such for example as providing for line spacing the platen the distance of 1 or 2 minimum line spaces, as may be desired. Therefore, the operator may set the regulator to provide for spacing; the platen theextent of 1, 11/ 2,.2 or-lminimum; line. spaces;. as 'desirech This is: accomplished by the simple expedient of sepa rating; the} teeth of the line spacing wheel an aliquot part of a minimum line space;

andiproviding for the use of a plurality'of teeth; for. theminimum line space producedon" the; machine ancl controlling the pawl to move the platen the distance of an odd or even-number-of teetlniastwo, three,.tour, five or, six; teeth. shown I provide sixt' line spacing teeth 9. onthealine spacing; w eel, instead of thirty, as heretofore, and: provideregulating means wh icltmay beset toena'ble the line spacing pa wjil. to eiigage said teeth sooner or later insthe effectivestroke-of the pawl, and; thus shift the wheel and platenthe extent of two, three',- four,. five 01"SlX' teeth of the w-heel-, iasima-y' be desired, V Themec'hanism for controlling will nowbe described.

the wheel A detentfroller engages theteeth'ofthe- Wheel and is carried by a spring-pressed carnier,- desi-gnated asa@ whole by the: reference numeral 1-1. erablyg made of sheet metal and is bent so aS to-be-substantia-lly U-shaped' in crosssection, providing; side walls 12 united by a rear connecting; wall 132 The detent roller is-received between the side walls 1 2. at the upper end thereof, and is supported thereby on a pivot 1a. The side walls 125at llh8' a lower ends thereof are provided with bear- 111g? openingsthat receive a pivotal support 15. .Thesupport15bears at one end against a- Washer 16? and is inthe nature of an eccentric That is to say, the member 15 I the companion end-plate When the screw 7 its" aha-s an: eccentrically' disposed opening therethrough that receives the stem of a headed binding screw 16 on which the'ecce-ntric receiveaturning adjustment to drillerent set positions. The rear end of the'screw .ai ter assin i throu h the inter )osed Washer isthreaded into. atapped opening in is; tightened it" will firmly; hold the eccentric or pivotal support 15 in the rotati-ve position to which; it has been adjustedi with the In the particular examplev This carrier is prefe aid of a hexagonal head 17 thereonr This provides a pivotal support for the detent, and one which may be adjusted to vary the position of the detent roller to accord with the position of the engaged teeth of the wheel atthe end or" the throwof the line spacing pawl. A coiled expansion spring 18 bears at one end against the connecting wall 13 of the carrier 11. The other end of this spring is seated in arecess 19 in a spacing collar 20 provided with reduced hubs 20 Said collar is interposed between a dependingarm 2-1 of a supporting bracket, designatedas a wholeby the reference numeral 22, and the associated end plate 2 of the carriage- This collar 20 is held in place by a headed screw 23, the stem of: which passes through registeringpopenings in the arm 21 and in the collar. ,The inner end of the screw is. threaded into a tapped openin inrthe endplate, and when tightened constitutes a support for the bracket and also firmly inds and holds the'collar in place. I 7

The line-spacing pawl 24 is provided with a hook-like engaging. nose 25: which coacts with the teefh of the line spacingwheel and is pivoted at one end'on a pivot pin 26 car.- ried by a line spacing pawl-carrier, desig-v nated a whole by the reference numeral 27. This carrier is. preferably struck up from a single piece of sheet'meta-l, the blank for the-carrier being, shownin Fig; 5. This carrier is formed from-a single piece with two'parallel side arms 28' bent up on the dotted lines indicated in Fig; 5; These arms are-united at their ends and lower edges by two integral cross'pieces 29 and- 3O. Formed integral with one of the; side arms 28 at the upper edge'thereof is a cross pieceor eX-tension 3l which extends across the opening between and overlies thearms 28 of the carrier.- The cross piece or member 30 has a forward extension 32' forconnection with the line spacing lever, as will presently appear. The line spacing pawl ispivoted between the side arms 28, extending forward and downward therefrom. The pivot 26 on which the pawl is mounted is riveted. at one endto one of said sidearms 28 andis seatedv atits other end in a registering opening 33 in the other sidearm. v p s A spring for forcing the pawl around its pivot towards theline spacing, wheel is carried by the carrier 27. In the present instance this spring is a leaf spring 34 formed witha T-shaped head 35 and lateral side enlargements 36'. The upper edges of the side arms 28 have recesses 37 in the rear of the cross-piecej31. Each of these recesses has depth corresponding substantially to thethickness of the spring, and the fore-andaft dimensions of each recess corresponds substantially tothe width of an arm 35 oi? the; cross head? of the spring- This provides carriage to the right.

seats in which the cross head may be re- -ceived and firmly held against movement in any direction in the plane of the cross head. In this connection it will be observed that the enlargements 36 of the spring coact with the inner side walls of the arms 28 of the carrier, whereas, the sides of the reduced free end portion of said spring are free from contact with .the carrier. It will be seen that the force of the spring forward of its cross head is at all times directed upward against and resisted by the cross piece 31 on the carrier, causing the cross head at all times to be forced down in its seat, thus firmly though detachably anchoring one end of the spring to the carrier without any additional means. These means enable the spring to be readily connected to its carrier or support, and enables a broken or damaged spring to be readily replaced with a new one. For example, in order to connect a spring it is merely necessary slip the free end of the spring from the rear beneath the arm 31 and force the spring forward until the anchoring head 35 seatsvitself in the recesses 37, and the spring is connected.

The carrier 27 is located above and is mounted for fore-and-aft movement on the supporting bracket 22, and overlies the line spacing wheel, being substantially 1n the plane thereof. Thus, the rear end portion of the carrier has its side arms 28 slotted longitudinally at 38 to receive a supporting pin 39. The supporting pin, as shown in Fig. 3, is in the nature of a shouldered,

headed screw received at its threaded end in a tapped opening in an arm 40 on the bracket 22.. The threaded end of the screw extends beyond the bracket arm 40 and receives a shouldered lock nut 41. In this manner the rear end of the carrier is supported for substantially rectilinear sliding movement fore-and-aft of the machine on the pin 39. The forward end or extension .82 of the carrier is apertured at 42 (see Fig.

5) to receive a pivot pin 43 which is riveted to said extension. This pivot pin is received in a bearing opening in an arm 44 of a line spacing lever to pivotally connect the lever arm with the carrier 27 at the forward end thereof. The other, hand controlled, arm 45 of the line spacing lever extends forward, the lever as a whole being mounted to turn on a headed pivot screw 46 on the bracket 22, said pivot having a vertically disposed axis. As the lever arm 45 is swung from'left to right it not only actuates the line spacing mechanism but returns the In the movement of the lever around its pivot the point of pivotal connection 43 travels fore-and-aft of the machine substantially in the plane of the escapement wheel, and a corresponding longitudinal sliding movement is transmitted to the carrier 27.

A depending pin 47 on the line spacing lever passes down through a segmental slot 48 in the bracket 22. Beneath the bracket a coiled, contractile, returning spring 49 is connected at one end to the pin 47 and at the other end to a pin 50 carried by a bracket 51 connected to the bottom of the bracket 22. The spring 49 returns the line spacing lever and the parts connected therewith to normal position, the pin 47 engaging one end wall of the slot and limiting the return motion of the parts.

In order to determine at what point in the effective throw of the line spacing pawl it shall engage the teeth of the line spacing wheel, and thus determine the extent of line spacing movement of the wheel, I have provided an adjustable line space regulating device which is shown detached in Fig. 6. This device, designated as a whole by the reference numeral 52, is preferably made of sheet metal. The main body portion of the device is recessed at to provide a segmental bearing portion that is seated on the platen clutch housing 54 arranged concentrically with the platen and connected to turn therewith.

In order to provide an additional support for the device 52,, and to guide it in its adjustment around the axis of the platen, I provide a sheet metal guide riveted at 56 to the bracket arm 21. This guide is formed with a central finger 57 bent in one direction from the body thereof in order to embrace the device 52 on one side thereof, and is provided with two fingers 58 bcnt'in the opposite direction to embrace the device 52 on the opposite side thereof. In addition I provide a segmental slot 59 in the device 52, and through this slot extends a shouldered screw or bolt 60 headed at one end, as at 61, and threaded at the other end to coact with a nut 62, the unthreaded shouldered portion of the screw passing through the slot 59. This screw passes freely through an opening in a depending arm 63 on the bracket 22, the nut 62 being on the outside of the arm 63 and the head 61 coacting with the inner face of the device 52, thus acting to guide and support said de vice ifrom opposite sides without unduly clamping it against the bracket arm 63, so that the device 52 is free to be adjusted. The device 52 has an offset curved flange 64 projecting therefrom which extends over the teeth of the line spacing wheel and is concentric with the axis of said wheel and the platen. The engaging nose 25 of the line spacing pawl normally rests on the flange 64 as shown in Fig. 8, the flange acting as an adjustable shield over which the pawl slides in its line spacing movement. \Vhen the pawl rides oif'the shield it will engage a tooth of the line spacing wheel and turn the wheel and platen the required distance depending on the position of adjustment of the regulator 52 and its shield 64:.-

In order to'provide for an adju'stmentof the device 52 to-diflerent positions where it will afford a line spacing movement at each actuation of the pawl forthe extent of two,

three, four, five or six teeth of the wheel, I

provide detent mechanism which in the present instance is as follows:

An arm 65 is pivoted at one end on' the may be seated to hold the line space regu lating device-52 in a corresponding position of adjustment. A contractile spring 74 is connected at one end tothe guide 55' and at its other end to said' arm 65, and exerts its force to maintain the pin 67 seated inany of the depressions in which it may be received, such force being exerted to move the pin towards the axis of the platen. A finger piece 75 projects laterally from the regulating device 52"to facilitate its adjustment. Extending laterally from the upper edge of the device 52 is a flange 76 with in dices, such for example as the numerals 2, 3, 4 and 5 with corresponding registering scale marks, each index being situated above one of the locking depressions in which the pm 67 rs received.

It will be understood that an adjustment of K the regulating device to bring any given index thereon into register with the pin 67 will cause the shield 64 to be set to afforda corresponding line spacing movement of V the wheel for the extent of two, three,tour;-

five or six teeth of the wheel, for spacing 1,

1%, 2, 2 or 3 line spaces respectively, depending on such adjustment.

lIn order to prevent an overthrow of the line spacing wheel and platen, I provide an extension 77 on the free end of the line spacmgtpawl WlllCll' terminates inaa contact 78.. The free end: of the pawl takes a curvilinear movement during its line spacing operation from the dotted to the full llne position in Fig. 2, and the contact 78 on the pawl will always be'brought into contactive engagement with the bottom of the supporting bracket at the end of the stroke, as shown in full 111165111 Fig. 2. This vresults in positively and effectively locking 2 the nose 25 of the pawl in engagment with they teeth or the wheel and preventing an overthrow of the wheel and platen.

The single-piece sheet metal bracket 22 is secured" tothe carriage by screws 7 9 and 80' inv addition to the screw 23. 7

it will be understood that aside from the capability of adjusting the line space regulating device 52 to the five positions indicated, insteadof adjusting it only to the three positions indicated by the index numerals l, 2 and S, the construction may be employed in connection with a standard line spacing wheel in which one tooth is used for each minimum line space employed. In such case the substitution of a regulating device having only the three points of adjustment indicated above may be readily effected. V 1

From the foregoing description it will be understood that l have provided a comparatively simple, inexpensive and sturdy construction in which nearly all of the parts are struck up from sheet metal; which affords irregular as well as regular line spacing and which is highly effective in use.

Various changes may be made in the construction, andparts thereof may be employed without others, without departing from my invention as it is accompanying claims. v

hat I claim as new and desire to secure by Letters Patent, is

l. The combination 01" a line spacing wheel; a line spacing lever; a pawl carrier overlying said wheel and supported at its rear end substantially in the plane of said wheel for approximate rectilinear-sliding movement fore-and-aft of the machine and having at its forward end a pivotal connection with an arm ofsaid lever, said carrier comprising a single piece of sheet" 2. The combination of a line spacing wheel, ajpawl therefor, aleaf spring for pressing said pawl towards the wheel, and means for attaching the spring to its sup port, said means-comprising a T shaped anchoringhead on the spring, arms on the support spaced apart to receive the'body of the sprin and having open mouth recesses in which said head'is adapted to be seated, and a cross connection between the arms of said support overlying the body of the spring intermediate said head and the free defined in the end of the spring and which resists the outward'pressure of the spring and holds the cross head seated'in said recesses;

3. The combination-of a carriage, a line spacing wheel; a line' spacing lever, a pawl carrier actuated thereby and having substantially a rectilinear operating move- 'ment, a line spacing pawl pivoted to said carrier, the free end portion of the pawl moving in a curved path inits engagement with the line spacing wheel, a supporting bracket by of the platen, said supporting bracket to-- gether with the parts carried thereby being detachable as a single unit from the carriage.

4. The combination of a line spacing wheel; a line spacing lever; a pawl carrier overlying said wheel and supported at its rear end in the plane of said wheel for ap proximate rectilinear sliding movement fore-and-aft of the machine and connected at its forward end by a pivotal connection with an arm of said lever, said carrier comprising two connected parallel side arms arranged above and substantially in the plane of said wheel; and a line spacing pawl located between and pivoted to said arms and wholly in the plane of said wheel and extending down therefrom for engagement with said line spacing wheel during the rearward movement of said carrier.

5. The combination of a line spacing wheel; a line spacing lever; a pawl carrier overlying said wheel and supported at its rear end in the plane of said wheel for approximate rectilinear sliding movement fore-and-aft of the machine and having at its forward end a pivotal connection with an arm of said lever, said carrier comprising two connected parallel sheet metal side arms arranged above and substantially in the plane of the wheel; a line spacing pawl located between and pivoted to said arms and in the plane of the line spacing wheel; and a leaf spring anchored at one end to said carrier and extending at its free end down between the side arms thereof and pressing the engaging end of the pawl towards the line spacing wheel.

Signed at Middletown, in the county of Middlesex, and State of Connecticut, this 14th day of April, A. D. 1927.

GEORGE Gr. GOING.

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