US1487103A - Typewriting machine - Google Patents

Description

AJ. B'. HOLDEN TYPEWRITING MACHINE March 1sv 1924.

Filed Jan. 29. 1923 ZSheets-Sheet 1 WITNEEEEE March 18 1924. 1,487,103

J. B. HOLDENl TYPEWRITING MACHINE Filed Jan. 29.1923 2 sheetssheei 2 WITNEEEEE l Imm/ENTER v M2/amv HIE ATTFNEY Patented ar. 18, 1924. I

JOSEPH HOLDEN, OF SYRACUSE, YORK, ASSIGNOR TO REMNGTO TYPEWRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYFEWRITING :MACHINE` Application iiled January 29, 1923. Serial No. 615,474.'

To all whom tf/nay concern:

Be it known that I, JOSEPH B. HOLDEN, citizen of the UntedSt-ateand resident of Syracuse, in the county o A Onondaga and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of4 which the following isa specification.

My invention relates to typewriting machines and, generally stated, more particularly to improved means for ensuring that the machine is in proper condition to be re'- ceived within its inclosing case before the case is closed.

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` 2o pointed out in the appended claims.

In the drawings, wherein like reference characters indicate corresponding parts in the different views,

Figure 1 is a fragmentary fore-and-aft vertical sectional view of a Remington porta- -ble machine embodying my invention, 'the machine being shown in condition for luse and the platen locked in case shifted position.

Figure 2 is a like view of the same, the machine being-shown collapsed and inclosed within its carrying case.

Figure 3eis a fragmentary detail top lan view showingl a part of the case shiflfing mechanism and some of the associated parts.

Figure 4 is a detail perspective view of the case shift lockrelease lever.

In the drawings I have omitted parts of the machine unnecessary to an understanding of my invention in its embodiment therein.

My invention relates more particularly'to light portable machines and is shown in the present instance embodied in a Remington ortable machine which in many respects is ike the machine shown in the fo lowing patents and a plicationz- A. W. Smit No. 1,342,513, dated June 8, 1920; J. B. Holden, No. 1,386,256, dated Aug. 2, 1921; H. E. Bridgwater, Sr. No. 553,732,` filed Apr. 17, 1922. i

In the `Remington portable machlne the carriage is supported against. movement from its normal or lower case position by the cover of the inclosing case when the latter is closed. This prevents the carriage from shifting backward and forward when the machine is being transported in its case, thus preventlng 1n]ury to the machine which might resu t from such shifting of the carriage.

If, however, the operator should leave the carnage locked in its shifted position it 1 would interfere with and prevent the cover. from being closed. Any forcible attempt to close the cover at this time might result in injury to the machine or to the cover, or

In the application of Charles E. Smith, Sr. No. 538,267, filed Feb. 21, 1922, a constructipn is disclosed by which theseob'ections are overcome and means are provide to ensure the proper return of the carriage to normal position before the cover is closed, and thereafter the case shift locking means are rendered ineffective so long as the machine is in condition to be inclosed Within its casing. Furthermore, Jtheactof expanding the ma chine, or rendering it in condition for use,

is effective to automatically withdraw the means by which the case shift locking means are rendered ineffective, so that such-locking means are again in condition for use.

The same general objects are attained by my present construction withoutlmodifying the structural features of the Remington portable machine, except by the simple addig5 tion of a part or two, as will hereinafter appear.

The frame of the machine comprises an outer sheet metal frame 1 and an inner sheet metal frame 2 attached'to the frame 1, and by which latter frame the' various working parts of the 'machine are supported. A series of segment-ally arranged type bars 3 are mounted 1n guide slots of a type bar segment 4, secured to the inner frame 2 and carrying a pivot wire 5 o n which the type bars are mounted. AEach type bar has a heel with se mentally arranged gear teeth 6, with whic similar teeth 7 on acompanion sub-lever 8 are adapted to mesh. The sub-levers 8.are pivoted on a pivot wire 9 carried by a suitaly fixed slotted support or segment, not shown. The forward end of each sub-lever 8 is pivoted to a depending link 1 0, which in turn is pivoted to a second sub-lever 11, ful- 105 crumed at its forward end on a sheet metal combined guide comb and fulcrum plate, designated as a'whole by the reference numeral 12. rllhis plate is secured in place at its ends by screws 13 that are received in tapped openings in ears 15 on the sideplates of the inner frame 2.

Each sub-lever 11V is connected to a depending link 17, which in turn is connected to a key lever 18, pivoted on a pivot wire 19. The rear end of each key lever is guided by and heldfon its pivot by a guide comb which supports the pivot wire on a lixed part of the machine, whereas the forward end portionv of each key lever extends through a guide slot 21 lin the forward guide comb 12.

The type bars are adapted to be turned on their pivotwire 5 from the inoperative position s lapsed relatively to the remainder of the machmeon a fixed type rest a, to the operative position, or position of use, indicated in Fig.

1. In this last mentioned position the type bars are expanded upwardly from the body of the machine, and each'is in a position to be moved rearwardly and downwardly to the printing position, and to strike against the top of a platen 22 when the companion printing key is depressed lto actuate its lever 18. rlhe hand 'actuated means operable at will, and by which the type bars are turned from their 'inoperative position sliown in Fig. 2 to their operative position shown in Fig. 1, comprises a rock shaft 23 mounted at its ends in the side plates of the inner frame 12. One end portion of the shaft has the usual crank-arm (not shown) which carries afinger piece operable from the right-hand side .of the machine, and which may be locked against movement in either extreme position to which it may be shifted, as usual. The hand controlled rock shaft 23 carries two crank arms 24, one near each side of the machine. The free end of each crank arm is'pivoted at 25 to a link 26, which in turn is pivoted at its u per end, as at 27, to a shiftable frame. T is frame is designated as a whole by the reference numeral 28, and en1 tends transversely across the machine to points near the sides thereof. The frame 28 is formed with depending guide arms 29 that are mounted to move up and down in companion grooved guides 30 carried by the typebar segment 4. 'llhe frame 28 thus mounted for vertical shifting movement from. the Fig. 1 to the Fig. 2 position, and vice versa, carries a segmental pad 31 arranged beneath the type bars and cooperative therewith to control the movements of the type bars around their pivot to either of the two positions shown. Each of the type `bars carries a lower case type 32 and an upper case type 33, and in the Remington portable machine a ease shifting movement of the platen may be effected to bring either set of types into use.

own in Fig. 2, where theyl remain col-- prevented from accidental detachment from its 'pivot by a cotter pin 38. The rear end portion of eachplate 34 is bent to form a horizontally disposed flange 39 to which is secured, by screws 40, a casting 41. This casting is pivoted at 42 to upright crank arms 43, carried by a rock shaft 44 received at its ends in bearing openings in the side plates of the frame 2. rlhe casting carries sheetme'tal grooved tracks 45 and 46 which receive bearing rollers 47 that also coact with the grooved tracks 48 and 49 of a carriage bed 50 which supports the platen 22. rlhe entire carriage with its platen is thus supported to travel laterally over the support or casting 41, and to receive a bodily fore and aft shifting movement with the case shift frame of which the support 41 forms a part. Suitable stops b and c are employed to limit the case-shifting movements of the. parts, and springs 51 return the shifted parts to'normal or lower case position when they are not held in the upper case position against the force of said srings.

ln the present construction the ey actuated means for controlling the case shiftingV movementsof the parts are substantially the same as those disclosed in the above nientioned application of Herbert E. Bridgwater, and comprises a case shift key lever 54 prpvided with a key 55` and fulcrulmed on the pivot wire 19. rlhis key lever is guided at its forward end portion in a guide slot in the comb plate 12, and is returned to normal position by a spring 54". 'llhe lever 54 has a depending projection 56 co-operative with the roller 57 on a headed pin 58 projecting laterally from a crank arm 59. 'llhis crank arm projects upwardly and rearwardly from a rock shaft 60 that extends transversely of the machine and is mounted at its reduced ends in bearing openings in the side plates of the inner `frame 2. A. centrally located arm 61 on the rock shaft is pivoted at 62 to a rearwardly extending link 63, connected by a screw 64 to a forwardly extending arm of a bracket 65, secured by screws 66 to the case shift frame. Another shift key lever (not shown) is also employed on'the other side of the machine to coact with a second crank arm on the rock shaft 60 to rock it in the same lmanner as the shift key lever 54. A. Vdepression of the shift -key lever 54, or the corresponding lever at the opposite side of the machine, is effective to roc the shaft 60, and through the link 63 shift the case shift frame and the parts carried thereby back from theFig. 2 to the lll) `mismos Fig. 1 position. A shift lock key 67 is carried by one arm of an angular lever 68 which is pivoted at 69 to the lever 54 on the outer side thereof. The lever 68 has a second arm at the other 'side of its fulcrum or pivot which terminates in a hook-like engaging or locking member or catch-70. The pivot 69 which unites the levers 68 and 54 is in the nature of a shouldered screw bolt secured by a nut 71 to the lever 54 and forming a pivot bearing for the lever 68. A spring 72 is coiled around the shank of the screw bolt and has one free end 7 3 thereof turned over and bearing against the bottom edge of the lever 68;- its other free vend 74 bearing against the upper edge of the lever 54. The force of this spring isexerted to turn the lever 68 on its pivot 69 to the Fig. 2 position, and to normally maintain it relatively to the lever 54 in the -position shown in this figure. A lug 75 formed on and extending.

laterally from the lower edge of the key carrying arm of the lever 68 projects under lthe lever 54, and co-acts therewith*l to limit the return movement of the lever 68 relatively to the lever 54.

A sheet metal locking plate or member 76 -is secured in front of the comb plate 12 at 'the left-hand end portion thereof. One of the screws 13 secures the upper end of the member 76 in place, whereas a screw 77 connects said member intermediate its ends to.

the plate 12; the lower end portion of the member 76 sloping forward away from the comb plate. It will be seen that this plate is mounted to the left of the slot in the comb plate 12 that receives the shift lever 54 'and that its lower engaging edge 78 extends forward of the lower edge of the comb plate. Pressure applied directly to the shift lock key 67 will first turn the leve-r 68 on its lpivot 69 until the hook-like end 70 of said lever bears against the front face of the plate 76. Since the lever' 68 can turn no further at this time the pressure exerted on the key 67 will carry the lever 54l down with it until the bill of the hook reaches the edge 78 of theplate. The hook will then be forced beneath said edge 78, and engaging the latter will prevent a return movement of the lever 68, shift lever 54 and the parts controlled thereby, and will lock the carriage in its case shifted position.- In order to @release the locking lever 68 and enable the parts to return to normal position, it is merely necessary with the parts thus far described, to depress the shift key 55. This lrelieves the engaging pressure exerted by the bill of the hook against the edge 78 of the looking plate. The lever 68 being thus freed from further restraint will be returned by its spring 72 to normal lposition relatively to the lever 54. This results in withdrawing the bill of the hook 70 from beneath the edge 78- of the locking plate,

and when pressure of the o `ratorsv nger is released from the depresse shift key 55 the key lever 54 and the parts controlled thereby are returned to normal position by the returning s rings 54a and 51.

The Remington portable machine is provided with a carrying. case in which the machine may be inclosed before transporting it. The inclosing case includes a baseboard 79 on which the machine is 'fixedly secured, and a detachable cover \80 having a rea-r wall 81. Rearwardly projecting'iingers 82 are secured to the baseboard and. are ada ted to enter openings inplates 83 secure to the back wall 81 of the cover. y

When the machineis collapsed, the carriage properly centered and in normal or lower case position, the cover may be aligned with the baseboard in the rear thereof with the projections 82 extending in the openings in the plates 83. The cover may then be given a pivotal movement on said projections 82, resulting in swinging the cover forward and down around the rear edge of the baseboard to inclose ythe machine. The rear wall 8l. of the cover, as usual, is provided with contacts 84 which, in the present instance, are in the nature of rubber blocks secured to and projecting inwardly from the rear wall 81 near each side wall. These contacts are aligned with the end plates 85 lof the carriage when the latter is centered on the machine. The purpose of these contacts is to bear against the end plates 85 of the carriage when the cover is closed, and support the weight of the carriage i'n'normal or lower case position, and prevent the carriage from shifting from said position while the machine is being carried in the case, rear end lowermost. This prevents the carriage from shifting back and forth while the machine is being transported in its case, and prevents the resultant injury to the machine that might follow from such shifting Y movement of the carriage. However, it will be understood from a consideration of Figs. 1 and 2 that if the operator should leave the case shifting mechanism locked as indicated in Fig. 1, the carriage would be held in its rearmost shifted position; increasing the lengthwise dimensions of the machine at this point. This would result in the rear ends of the lates 85 of the carriage being maintained 1n the; path of the projections 84 on the cover and `prevent the cover from being closed; The use of any considerable force to'close the covei` at this time might result in injury to the machine or to the cover, or to both. L

' The purpose of'my present' invention in the main is to overcome the diiiculty pointed out above and render it impossible to injure the machine or its cover` by providing simv liminary to inclosing the machine, and thereafter render the case shift lock ineffective until such time as the machine is again in condition for use. It will of course be un derstood that itis necessary to'collapse the machine. before it can be inclosed in its case. I utilize the means for collapsing the machine to automatiealliylY effect a release of the case shift lock if it s ould b held in locked position,y andl also to therea ter render ineffective such locking means until the machine has beenexpanded and istagain -in condition for use. Thus areleasing lever, designated as a whole by the reference nmeral 86 and shown in detail in Fig. 4, is apertured at 87 for pivotal mounting on an interiorly threaded stud 88 (see Fig. 3) secured to and projecting in from the lefthand side plate ofthe inner frame 2.. A. headed screw 89-i-s'threaded into the stud 88 and has its-head overlapping the lever 86 .to hold it on its pivot. A washer or spacing sleeve 90 surrounds the stud, andis interposed between the lever 86'and the lefthand side plate of the inner lframe. The lever 86 thus mountedfor pivotal movement extends fore and aft of the machine and passes through a cut-out in the lower edge of the comb plate 12. The forward end portion of the lever 86 is bent to the left to provide a contact or engaging member 91 which crosses the plane of movement of the lug 75 on the key carrying arm of the case shift locking lever 68, and in certain circumstances is adapted to coact therewith, as will presently appear. The rear end ortion of the lever 86 is formed with a yo e-like ortion 92 that straddles the adjacent shi t lever 54, and co-acts therewith to guide the releasing lever in its pivotal movements. releasing lever 86 is slightly oH-set to the right to bring it into the plane of movement of a contact device, in the nature of a pin 94, fixed to the left-hand link 26 by which the-type bars are shifted to and from collapsed position. 'Should the operator before inclosing the machine inadvertently leave the carriage locked in its case shifted position shown 1n Fig. 1, where ordinarily 1t would prevent the cover from'being closed, no injurious results can follow in the present construction.' Thus, asa necessary preliminary to -inclosing the machine, the shaft 23 must be turned to collapse the type bars. The act of doing this moves the left-hand collapsing link 26 from 'the Fig. 1 to the Fig. 2 position. This movement of the lefthand link 26 carries the pin 94 thereon through the path lndicated y the series of ldotted circles in Fig. 1 to the Fig.'2 position.

This brings the pm 94 down against the rear end 93 of the releasing lever 86 and tilts 1t on its pivot 88 from the Fig. 1 to the f Fig. 2

The rear end 93 of the' memos osition, elevatin the front end of said relasing lever to t 'e position shown in Fig. 2. If the locking lever 68 at this time be locked down, as has been supposed, then the result vwill be that it willl be shifted around its pivot 69 to disengage its hooked end from the locking plate 76.. As soon as such disengagement takes place the spring 72 is effective to return it to normal osition relatively to the shift lever 54, an the latter will be returned to normal position by its spring 54". This enables the springs 51 tomove the shift frame and carriage forward to normal or lower case position, where th'e end plates 85'fof the carriage no longer offer obstructions to prevent the cover from being closed. *i It will be seen that so long as the type bars remain collapsed, the forward end of the releasing lever 86 is held against being moved down from the position shown in Fig. 2. It follows therefore that should the operator depress the shift lock key- 67 after the type bars are collapsed, then 4the lug 75 on the key carrying arm of the locking lever will be brought against the elevated contact 91 on the releasing lever, as shown in Fig. 2. This prevents the engaging end 70 on the other arm' of the locking lever from engaging beneath the lower edge 78 of the locking plate 76 and locking the parts in case shifted position. Therefore, the automatic actuation of the release lever 86 is effective to release the case shift locking lmeans if they be locked, and thereafter prevents the operator from locking the carriage in case shifted position until the type bars are expanded tolace the machine in condition for use. I the carriage be not locked in its case shifted position when the type bars are collapsed, then the release lever will revent this from being done until the type ars are expanded to place themachine in condition for use. The act of expanding the `bars removes the pin 94 from the releasing lever 86,. and the latter is no longer effective to prevent the case shift lock from @operating until the type bars are again collapsed.

It will be understood that the rear end portion of the releasin lever A86 being heavier than the forwar `end thereof will tend to carry the rear end of said lever down until the cross bar 92 of the yoke 92 coacts with the lever 54 and arrests further pivotal movement of the releasing lever. This will leave the contact 91 on the releasingy lever normally extending into the path of the lug on the locking llever 68 and for-l `ward of the pivot 69 of the latter. When the parts are 4normally disposed and the. type bars are expanded, a depression of the locking key 67 will merely result in moving the releasing lever 86 to the position shown in Fig. 1 without interfering with the enend thereof interposed in the path of the lu on the key carrying arm of the case shift locking lever, as shown in Fig. 2, and will prevent the carriage from being locked in shifted position.

From the foregoing description it will be understood that m invention may be readily incorporated in emington portable machines without modifying the structural features of said machines as they now exist,

,except by the addition of the pin 94 and the releasing lever 86. A

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

1. In a typewritlng or like machine, the

combination of case shift mechanism including a locking lever for lockingl the shiftable part in shifted position and avingan engaging member at one side of its fulcrum and a key at the other; a collapsible part of the machine; and a releasing lever o erative on said locking lever at the keycarrying side thereof and actuated b a movement of said collapsible part to col apsed position to release the locking lever from locked position.

2.' In a typewritin combination of case s ift mechanism includinga locking lever for lockin the shiftable part in shifted position and aving an engaging member at one side of its fulcrum and a key at the other; a collapsible part of the machine; and a releasing lever operative on said locking lever at the key carrying side thereof and actuated by a movement of said collapsible part to collapsed position to release the lookin lever from locked position, said releasing ever bein heldin the path of the key carrying side o the locking lever so long a's the collapsible art remains colla sed and preventing a. loc ing of the shiftab e part in case shifted position.

3. In a typewritin or like ymachinethe combination of case s ift mechanism including a case shift key lever and an angular case shift-locking lever pivoted on the case shift lever and 4having a ey on one arm and an en aging memberl on the other; a col. lapsibIe part of the machine; and a releasing lever moved to effective position by the movement of the collapsible part to collapsed position and is operative on the key cangmg arm of the lockin lever to release t e latter from locked osltion. y l

4. In a typewriting or like machine, the combination of case lshift mechanism including a locking levervfor locking the shiftable part in case shifted -position and havmg a key on one arm and an engaging member on the other arm; a part of the machine on the other arm; collapsi or like Amachine, thel movable .from an expanded position for use to a compact position; controlling means y forthus moving said last mentioned part; and a releasing lever that extends fore and aft of the machine from said controlling means to the key carrying arm of said locking lever and is operative thereon to release the locking lever when said controlling means are shifted -to compact 'the part con. trolled thereby. v

5. In a typewriting or like machine, the combination of case shift mechanism including a locking leverl for lockingthe shiftable vpart in case shifted position and havin a 'key on one arm and an engaging mem er on the other arm; vcollapslble type bars; means including-a link lfor collapsing said type bars; and means controlled by said link and actingon vthe key carrying arm of said locking lever for shifting it to releasing position. l

6. In a typewriting or like machine, the combination of case shift mechanism including a locking lever for locking the shiftable part in case shifted' position and having a key on one arm and an engaging member le type bars; means including a link for collapsing said type bars; vand a releasin lever acted on at one end by said link an at the other end yacting on the key carrying end of said locking lever to release vit from locked position and prevent it thereafter from locking the shiftable part in shifted position so long as the type bars remain collapsed.

7. In a typewriting or like machine, the

combination of case shift mechanism includv ing a locking lever for locking the shiftable part in case shifted position, the shiftable part when thus lockedvpreventing' the carryin case of the machine from being closed, said locking lever having a key on one arm and an engaging member on the other arm; a part of the machine movable from an expandedpositionf for fuse to a compact sition and when in said expandedposition preventing said -carrying case from being closed; controlling means for compacting said compactible part; and a releasing lever controlled by an extending from said con' collapsible part in expanded position for Signed at S racuse, in the county olf (lnuse and moved into contactive engagement ondaga and tate of New York, this 25 with said releasing lever when said colday of January, A.. D. 1923.

lapsing means moves the collapsible part JOSEPH B. HOLDEN. 5 to collapsed position and thereby control Witnesses:

said releasing lever and the co-operative HAROLDE. MIseHLE-R,

locking lever. DENNIS V. Caiman.

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