US1469477A - holden - Google Patents

Description

J. B. HOLDEN TYPEWRITING MACHINE Filed oct. 15

1919 2 Sheecs-Sheeo WITNEEEEE 72. zz WM oct. 2, 1923. 1,469,477

.1. B. HOLDEN TYPEWRTING MACHINE Filed Oct. l5, 1919 Sheets-Sheet 2 WITNEEEEE Z722 f/f. @4G/m INVENTR yyufk Patented Oct. 2, 1923.

UNITED STATES PATENT OFFICE.

JOSEPH-B. HOLDEN, 0F SYRACUSE, NEW YORK, ASSIGNOR TO REMINGTON TYPE- WRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPEWRITING MACHINE.

Application led October V15, 1919.

To all w /iom` it may concern Be it known that I, Josnrri B. HOLDEN,

citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification. p My invention relates to typewriting machines and especially to typewriters of that sort which are intended Vto be readily portable. VVhen a typewriter is carried about there is danger ofinjury to and perhaps breakage of parts ofthe escapement mechanism due to the fact that the carriage may be set in such position that the weight of kthe carriage comes on the feed dogs and the machine may also receive jolts or blows, the force of which would come against said feed dogs. n

My invention has for its principal object to insure that the escarpenient mechanism is disconnected when the machine is prepared for transportation so that the weight of the carriage does not come on the feed dogs. My invention also has other objects which will appear hereinafter.

To the above andV other ends my invention consists incertain features of construction and combinations and arrangements of parts all of which will be fully set forth herein and particularly pointed out in the claims.

yOne embodiment of my invention is illustrated in the accompanying'drawings, in which--y Figure 1 is a transverse cross section of the machine takenralittle in fioiit of the carriage on line azof Fig. 5 and showing the machine-enclosed .in aV carrying case.

Figure 2 is a view ofthe left-hand end of the carriage .and associated parts. and shows the mechanism in condition for transportation. Figure v3 is a view similartoa portion of Fig. 2 but with parts omitted and one part in sectionY and shows the mechanism in position for use.

Figure'll is an end elevation fof the righthand end of the' carriage with parts in section.

F igiire, 5 is a front to rear vertical sectionalvviewof the machine enclosed in its carrying casebut with parts of the machine Serial No. 330,747.

shown in broken lines in the positions they occupy when the machine is out of the case and is in condittion for use.

In lthe drawings many parts of the machine are omitted and parts are broken away or shown in section as has been found convenient.

The machine shown in the drawings is of The machine shown in the drawings is a top strike Vtypewriter capable ofbeing compacted or reduced in dimensions in order to be put into a comparatively small carrying case and said machine is made of as light construction as is consistent with the necessary strength and durability.

The main frame of the machine comprises sheet metal side plates 1, Fig. 5, which at their forward ends are rigidly connected together by a transverse frame bar 2, which frame bar constitutes a sort of double comb plate, being slottedv bothr along its upper and along its lower edges for co-operation with parts of the type action. Near their rear ends the frame plates 1 are rigidly connected by means of a casting 3, which may have the general form shown in the applications of Smith and Barr above referred to, and the middle part of which consists, at the rear, of a. type bar. segment 4, and, at the front, of a sublever segment 5. A. comb plate 6, consisting of an angular barrof sheet .metal slotted along its lower edge and supporting a wire 7,4is secured to the l.under side of the casting 3 and serves as apivot at their forward ends. Said key levers are guided in the slots in the lower edge of the comb links 10 with sublevers 1l' pivoted in the slots in the upper edge ofsaidcomb plate 2 where they are retained in place by a guard plate 12. Said siibleveijs 11 are of varying plate 2 and they arefconnected by lengths, the ,one'shown being near the'iniddle are adapted to strike down on the upper of the machine and one of the shortest in the machine, those near t-he sides of the system projecting considerably further toward the i rear. Each of said sublevers 11 is connected Yzo shift framefliy which the carriage can be, shifted front and rear to cause either of the o two types on each type har to print. As this length to be serviceable.

side of a platen 18. Said platen is mounted in a carriage which so far as'my invention is concerned can be of'anyf suitable sort. As here shown the main member of it is a bar 2O bent at its frontvand rear edges to form two 'ball bearingraceways, the balls 21 of which VrunV in grooves in rails 22 which rails'are mounted on rearwardly projecting brackets 23 which can be supported in any suit-ableway. In the machine actually being described these brackets are parts of the case case shift mechanismforins no part of my present invention I have not shown it furthe-r than to indicate a bracket. 24 secured to the bracket 23 and connected by a link 25 with the stationary framework, the shifting of the frame and carriage being permitted bythe rocking of said link 25.

The carriage comprises a left-hand end `bracket 26 and a right-hand end bracket 27 in which the platen18 is mounted. These brackets in light machines of the sort under consideration are preferably of sheet metal and at the right-hand side of Fig. 1 I have shown Vone of them in section to lindicate the manner adopted in the present instance lfor journaling a platen axle in the brackets.

A flanged or headed thimble 28 is inserted through a suitable opening in the upper part of the bracket- 27 and a washer 30 is riveted Vor staked on to the projecting'endof the thimble, the construction being such that the bracket 27 is clamped betweenthe head of the thimble and the washer, and said thimble has a hole through it for the platen axle, thus providing a bearing of sufficient The construction at the left-hand end of the platen is similar, 28 indicating the head of the thimble, and 30 the washer, in that instance. But the head of the thimble is made a little larger and a little longer for reasons which will lpresently appear.

p The platenjas here shownl comprises a wooden core 31V and rubber sheath 32, the

lcore'having a' hole extending longitudinally and centrally' thereof. At the right-hand the platen, but at that endthere is alsoa line space wheel 36 fastened to the escutchf con 37. A platenv axle 38 extends entirely vthrough the platen and passes through round holes in the escutche'on 37 at the left-hand end of the platen and through the thimble 28 at that end of the platen so that asfar as the left-hand end ofthe platen is concerned the axle is capable. of sliding lengtlr wise of the platen. At its rit'g'ht-hand end the axleBS'is iattened off, at 40, the flatten ing in the vpresent instance being on three sides, bringing the shaft to a triangular cross section and the outer end of the hub 34 has a 'hole through it that just fits this triangular shaft so 4that thev shaft can slidev through .the escutcheon 3S butv cannotV turn relatively thereto;

terminates inshoulders 41v which byI strikl.

ing against the end of the counter bore in the hub 34 limits the extent to which theA Shaft can slide toward the right. A Vfinger wheel or twirler 42 is secured on the right-hand end'of the shaft 38 by meansof a screw`43.

The triangular part' 40 y It will be perceived that the construction is f such that the platen can be turned by means of the finger wheel 42 and that said finger wheel canVV he moved a' 4limited'distance to.- ward the right and left; that is to say, the shaft can be pushed intoA the platen to bring the finger wheel to its teleseoped or contracted position shown in full lines in Fig. 1 and it can he pulled out to anextended position shown in broken lines in Fig. 1. In assembling the machine, the shaft can be insertedfrom 'the left Vand the finger wheel put on after it is in place.

At the left-'hand end of the carriage on the outside of the bracket 26 abell crank having an yupright arm 44 and a forwardly extending arm 45, is pivoted on a screw or stud 46 tothe face ofthe bracket 26. At its upper end the bell crank 44, 45 has bent off therefrom a small handle 47. Any suitable spring 48'tends to lift, the arm 45'and to move the arm 44 to'wardthe rear of the machine. YSaid arm 44`lies in 'a slot 50 cut vertically 'in the front face of the head of 4the thimble 28, said slot being as here shown by said shaft held in its forward positiony the pressure `of the spring 48 and the horizontal arm of saidbell crankl is held depressed as shown in Fig. 2. Vhen the finger Wheel is pulled out to its broken line position shown in Fig 1, which is the position it occupies when the machine is in use, the end of the shaft 38 is drawn in just beyond the arm 44, which arm therefore is by the spring 48 pressed baclcto the bottom ofthe slot 50 as shown `in Fig. 3 and the` horizontal arm of the bell cranlrmoves upward. Said horizontal arm of the bell crank lies over aileftward prolongation of the carriage feed rack 52 which feed rack is mounted on the forward ends of armsr which arms are pivoted at theirrear ends at 51 on the carriage bar 20. The construction and mounting of said rack 52 are sucli that it can move up and down to a limited extent and it is normally held up by small coiled springs 54 compressed beneath the arms 53. It will be perceived that the construction is such that the linger Wheel 42 'cannot be pushed in Without'rst pulling' forward on the arm 44 and that when said finger Wheel is pushed vin the hell crank occupies its rocked position shown in F ig. 2 and the feed rack is depressed against the pressure of its springs 54. It will also be perceived that Vwhen the finger wheel 42 is pulled out to its broken line position the bell crank 44, 45 is moved by its spring 48 to its Fig. 3 position and the feed rack 52 is elevated to its normal operative position by its springs 54. At this time the arm 44 lies part Way across the end of shaft 38 and locks it and the finger Wheel 42 in their outer` position, orposition of use.

The rack 52 has teeth on its upper edge which cooperate with any` suitable feed dogs 55 mounted on a dog rocker 56 which in turn is mounted on a transverse rock shaft 57 constituting part of the carriage feed mechanism of the machine. Said shaft 57 is controlled in any suitable Way by any suitable universal bar 58, the shaft Vitself and the universal barV being prefer- `ably mounted on the case shift frame before referred to. In the present instance the universal baris carried at its ends on levers 59 which operate arms 69 on the rock shaft 57 It Willbe perceived thatnormally the rack 52 engages the feed. dogs 55 but that before thefinger-.Wheel 42 can be pushed into its position for transportation said rack is depressed out of engagement with the feed dogs and islicld down as long as said finger `Wheel occupies that position.

The carrying case for the machine can be variously constructed. The one shown comprises a base part 60 and an upper part 61, said parts havingl a general rectangular forni as seen from above. A strip of sheet metal 62' is secured around the inner part of said base, as shown, thus constituting aflange aboutwhich the upper part 61 of lines.

the case fits when the case. isf'closed as shown. Said upper part may also have a strip 63 of slieet'metal 4around it for stiffening purposes. Brackets 64 may be secured to the rear Wall of the base 60 and lproject over the base part 65 of the typearev such that, as will be perceived by inspection of Fig. 1, the machine cannot be put into the case and the cover 61 closed down about' it While the nger Wheel 42 is 'in its outerI position shown in broken The user of the machine is therefore compelled before he can put it into the case to push the finger wheel 42 to its Ainner position and he cannot do thativithout .first releasing the carriage from its escapement mechanism.

In order to insure that the carriage shall be positioned at the right pointto makeit go into the case properly and in order to hold the carriage when the escapementmechanism is released, any suitable carriage lock can be provided. In the one here shown a slot 66, Fig. 1, is cut through the forward racewayof the carriage bar 20 near the right-hand end thereof and when the carriage is in the correct position for putting into the case said slot matches or registers with another slot 67, Fig. 4, cut in the stationary rail 22. A locking lever 68 is pivoted against the outer face of the carriage bracket 27 on a screvv 70 and saidlever bent first toward. the left and thence toward the front of the machine and thence downwardly, its free end 71 being adapted to pass into the two registering slots 66 and 67 to lock the carriage to the rail. The lever 68 isA prolonged toward the rear to make a handle 72 by which .it can be manipulated and its motion is limited in one direction bythe Washer 30 and in the other by any suitable stop 73. When said handle is moved down against stop 7 3, the part 71 of the lock is moved out of the slot 67, and the carriage-is thus unlocked. The locking lever is held vin either of its two positions by friction. There is no danger that the operator Will forget to use this lock because if he does by the time he getsthe twirler 42 in its compacted position the carriage will be freedof its escapement devices and if left to itself Will be driven by its spring to the extreme leftward limit of its travel and this fact would remind the operator to push it back to its proper place and lock it. Y

Some of the parts of the typewriting machine sliown in the drawing but not heretovfore described, will be briefly referred to.

In said machine the main frame comprising side plates 1, front bar 2 and casting 3 is supplementedrby and enclosed in a casing 74 which preferably is made otsheet metal in any suitable rWay and ofwhich thebase 65 hereinbefore referred to constitutes a part. A. top plate 75` is mounted on the upper part of the easingv 74 or on'V the side plates '1 and .ithas a depressed middle' partV V'inwhich vthe type bars 16 lie whenwthe'ma- .chine is in its compacted condition of nonuse and ready `for transportation `as shown in lfull lines in Fig. .5.- Said type bars rest against a segmental pad 76 which is mounted in a Vplate here, shown as made upzof several pieces but ygenerally designated as'77, and nieansare provided wherebythis-plate can be dropped down to the position shown in fullflines in Fig. 5,in orderto compact the machine andwhereby said plate andthe pad 76 canbeV raised; tothe position shown in broken linesin Fig. 5 Whererit holds said .type bars ready to beoperated Said means are fully shown and described in the patent to AArthuiiVV.` Smith, blo-1,342,513, herein- Vbefore referred to..` It will he observed that .iii the machine shown there are two things 'that have been done in order to get the machine into thecarrying case, namely", the

plate77 haste be dropped down in order `to compact Athe type bars and the finger wheel 42 has to be .pushedin It `Will be understood that vthe means. frorvinsuring that the escapement is released might theoretically be associated with eitherof these /compacting Y movements or for Vthat matter with any` other compactiire; movement, but I prefer the connection shown, namely, that with the vfinger Wheel, as beingy simpler than the other.

Stov far as I am aware it: is broadly new to connectthe carriage release device with a Vcompacting movement of any kind in such a Way that the machine cannot be compacted to put it into its case without taking the .suitable interlocking connection, butfthese `parts are not shown in the drawing.

Various changes can be made in the details. of construction and arrangement with out departingfrom my invention. 1 Y 1 WhatIclaim as new and desire to secure by Letters Patent, is:

'1. The combinationyvith a carriage,

escapement means normally restraining movement of saidcarriage, anda'carriage releasing means tor freeing said carriage.

from :the restraint of said escapement means.

of ypart movable from a working position to a compacted position, said part being so related tosaid releasing means as that said movement Vofv said' carriage, and carriage releasing means' for freeing said carriage rom'the restraint of said escapement means,

of a part movable from a working position-- to a compacted positiomsaid `part being so related to said releasingmeans as that said f carriageis necessarily freed from the restraint of said escapement means Whensaid part is compacted;j and a lock to -hold Vsaid carriage in proper position when the ma f chine is compacted. i

f 3. In a -typeivritingmachine, the com-l bina-tion with a carriage and escapement` mechanism therefor, of a. part compactible to reduce the dimensions of the machine,

and means effective to prevent the compacting of said Vpart and operative to release the carriage, butineilec-t-ive to prevent ythe compacting. ,of said part when the carriage is released by an operationlof said means.

`4. Ina typewriting machine, the combination With a carriage `and 'escapement mechanism therefor, of a part compactible to reduce the dimensions of the machine, means effective 'to prevent the compacting of said part and. operative to release the carriage, but ineffective to prevent the compacting of thefpart when the carriage is re` leased by an operation of said means, and-a lock for' locking the carriage in position for portability.V Y y 5. The combination with a case comprising a cover for enclosing a typeivriting ma chine, of a machine including apart adaptedvto be compacted, said part being of` such dimensions and occupying when` in use such a. position astoVpreve-nt the application of said cover but being movable to a compact position `Where the cover may be applied tothe Whole machine, a carriage, escapeinent means normally restrainingmovement of nsaid carriage, i carriage releasing means for freeing saidV carriage from the restraint of said escapementmeans, Vand a part movable from a Working position to a compacted position, vsaid part being so related to vsaid releasing meansas tha-tsaid carriage is necessarily freed from the-frejstraint of said e'scapement means wheny said '120 part is compacted. Y

6; In a typeivriting machine, the conibination ofa platen, a linger. Wheel there for movable into compact relation to other parts, a carriage on which said platenis mounted, escapement mechanism, and a carriage release device so., correlated with said finger Wheel as lto prevent the finger Wheel from vbeing pushed in unless the carringe is released.

7. In a typewriting machine, the .com-- bination of a platen, a finger Wheel therefor movable into compact relation to other parts, a carriage on which said platen is mounted, esoapement mechanism, and a device forming a lock to keep said finger Wheel in its outer positionr and operative to release the carriage, but ineffective to prevent movement of the finger Wheel to its inner position when the carriage is released by an operation of said device.

8. In a typeWriting machine, the combination of a platen, a finger Wheel therefor movable into compactV relation to other parts, a carriage on `which said platen is mounted, escape/ment mechanism, a device forming a. lock to keep said finger rWheel in its outer position and openative to release the carriage, but ineffective to prevent movement of the finger wheel to its inner position when the carriage is released by an operation of said device, and a. lock for the carriage.

9. In a typevvriting machine, the connf bination of a platen, a shaft connected With said platen for turning the same and slidable in and out, a finger wheel on said shaft at one end thereof, a lever Which when said finger Wheel is drawn out overlaps the other end of said shaft to lock it in its extended position, carriage escapement mechanism, and a releasing connection between said lever and said carriage escapement mechanism.

10. The combination with a carrying case and a typetvriting machine adapted to be carried in said case and including a carriage and feed mechanism therefor, of means for compelling the freeing of the carriage from the. restraint of said feed mechanisms to enable the machine to be enclosed in said case.

11. In a typewriting machine, the combination of a rotary platen having bearings in its ends, a shaft and supports therefor, the shaft being adapted to be inserted in said bearings, one end of said shaft and thebean ing at that end being round and `the shaft at the other end being flattened, and the bearing at said other end being correspondingly shaped, the construction being such that the shaft can be inserted at that end Where the bearing is round and that at the end of the flattened portion of the shaft is left a shoulder to limit the endivise motion of the shaft, and a finger Wheel on said shaft, the entire construction being such that said shaft can be slid in sand out a limV ited distance and that said finger Wheel can be used to turn the platen.

12. In a typewriting machine, the combination of a carriage having a platen, carriage. eseapement mechanism., normally restraining movement of the carriage, a finger wheel for said platen oompactible with relation to said platen, and means whereby said finger Wheel cannot be ,compacted Without the carriage is released from such restraining of its escapement mechanism.

13. In a typevvriting machine, the combination with a spring-propelled carriage, an escapement mechanism therefor coinprising dogs and a toothed rack or member, carriage releasing means adapted to separate the said dogs `and the said toothed rack or member, a part imovable to compact the machine, said part being so rel-ated to the carriage release mechanism as that it cannot be compacted so long as the dogs and rack remain unseparated.

Signed at Syracuse, in the county of Onondaga and State of New York this 11th day of October, A. D. 1919.

JOSEPH B. HOLDEN.

Witnesses:

MARGARET FIFIELD, W. W. BRAND.

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