US1069847A - Type-writing machine. - Google Patents

Description

L. D. BROUGHTON.

TYPE WRITING MACHINE;

APPLIGATION 111.1111) AUG.15, 1911. l LGQW., Patented Aug. 1.2, 1913.

3 SHEETS-SHEET 1.

L. D. BROUGHTON.

TYIE WRITING MACHINE. APPLICATION FILED 111111.15, 1911.

Patented Aug. 12, 1913.

3 SHEETS-SHEET 2.

. Il -1 l |lr@ L rlllll L.D.BROUGHTON.

TYPE WRITING MACHINE.

APPLICATloN FILED AUG.

3 SHEETS-SHEET 3.

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Q5 INVENTOM fvg/WW LYMAN D. BROUGHTQN, OF HARTFORD, CONNECTICUT, ASSIGNOR T Q UNDERWOOD TYPEWBITER COMFANY, OF NEW' YORK, IN. Y., A CCRPORATION 0F DELAWARE.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 12,1913.

Application filed ugust 15, 1911i Serial No. 644,132.

To all ywhom, t may concern.'

Be it known that-.1, LYMAN D. Bnouenrox, a citizen ot the Unitedl States, residing in Hartford. inthe county of' Hartford and State cl tlonnecticut', `haveinvented certain new and useful Improvements in Type Vi'ritinc Machines, of which the following is a specilication. 'v

rihis invention relates to t-abulating mechanisms for typewriters and other machines, and particularly 'to improvements in'column skipping mechanism.

ln my application No. 585,186, filed (Detober 4, 1910, is illustrated one form of ma.- chine in which, by 'depressing any desired cclunin key, and then depressing any desired decimal key, the carriage of the typ'e\ viiterV is released and arrested at the desired decimal or denominational" pointAY in the' desired column,

The principal object of the present invention is to simplify and: impro-ve the construction kand operationof the column-select ing or column-skipping devices, particularly with a view to rendering them more readily adaptable to diierent types of typev'vritingl machines. v

ln carrying out the invention, l arrange fi series of mounts upon a rack which is at:- tzu-hed' to the carriage and corresponds to the usual column stop rack on an Underwood typewriting machine. These mounts are independently adjustable along the carriage.. Upon these mounts are pivoted column stops, which may be lifted or withdrawn from use by operating said columnselecting keys. nected to a cam, and the cams are adapted to lift the column stops. `For this purpose, the column stopsfare provided with projections which are oi graduated lengths, and' the cams are so placed that only one of them can engage the projection of greater length, and hence can lift only one column stop. The next cani is placed so that it can lift the two longest projections, and hence can withdraw two of the stops from use; and'so on hioufrliout the series. Hence by operating the dlisired column stop key the carriage may be arrested in the desired column. These cams are arra'n ed one behind'another nlack of the usual and the column-selecting keys are referably arranged at the keyboard'upon t .eferward ends offlevers, the rear ends` of the4 Each of these keys is conank of' decimal stops,

countersto-p. The mounts for the column stops are of simplified and improved construction; each being preferably in the form of' a collar to slide upon the rack bar and having' an improved releasable dog for engaging the teeth on the rack.

Other features and advantages will here'- iiiafter appear.

In the accompanying drawings, Figure 1 is a rear perspective View of the presentl ixn provements applied to an Underwood typewrit-ing machine. Fig. 2 is a front erspective viewshowing. the connection letween the rear ends of' t'hecolumn key levers and thel `lewer ends of the upstanding rods which carry the selecting cams. v Fig. 3 is a.

`sectional elevation taken-from front to rear ot the machine. Fig. sie a plan of the rear 'portion of the machine showing the, column stops, decimal stops, etc. Fig. 5 1s a rear perspective view of one o the mounts which carry the column stops. Fig. 6 is a rear -view illustrating one column stop in normal posit-ion, and another column stop as elevated or withdrawn'by means of one ot the key operated' earns. Fig. 7 is a 'detail perspective view, showing one'of the mounts opened upto disclose its structure.

Keys lare fixed uponthe forward ends of levers 2, the latter connected by bell cranks 3io type bars 4' which swing rearwardly aga-insta platen 5, the platen being mounted' on a carriage t3. The carriage is driven by a spring barrel 7', and has a rack 8 to` mesh with a pinion 9, the latter connected to ane'scpenient wheel' it) which forms a portion of tfhgusual letter-feeding mechanism `of said carriage 6. Decimal tabulating keys llf, at the back of the keyboard, are mounted' by means of`ste1ns 12 upon levers 13 extending rearwardly and pivoted between their ends fit-'14, andat' their rear ends articulated at' 15 to upstanding rods 1G, the latter having decimal stops 17 at' their upper ends.

These stops may be projected by said keys A 1 1 .@sition'to engage any oit"l a series of forward set of rods inediately back of the stop rods a very compact structure, and tlieltrmay-be guided Iin the bracket 30, 'whiclft rods 16 are usually guided. rlhe levers 32, carrying the rear set of rods 31, may 'extend compactly beneath the stems on the levers 13 key-levers-Q) may be in rear of the keys 33 on the lower levers 32. In other words, one system of keys, levers and rods, as 12,13, 16,' may nestV within the other system of keys, levers and rods. thus making a very coinpact and satisfactory arrangement.' Each cam 29 with its rods 31may be formed'by a single unbent sta'mping of sheet metal as illustrated, thus compactness; and vthe cams"'29, which overhang the rods, may rest upon the top ofthe bracket 30. The bracket may have upper and lower guides 38, 39 for the side edges ot' the rods, and thevlatter may have widened portions 40 to fit in said guides. As seen at Fig. 2, the several rods 31 `may be variously cut away at their lower endsat 41 to clear the rear ends of the levers 32.

Each cani or plate 29 has a'beyel portion 4Q, which is the first to engage the projections 28 as the carriage runs 1n letter-feeding direction; and it also has'a horizontal dwell portion 43, which holds the projection 28 elevated while the column stop 18 passes by all the counterstops 17. flhe far end of each plate may also be beveled at 44, so that, it' any cam iselevated while the carriage 6 -is being run back, this bevel 44 will beengaged by the pin or pins 28, and theypin will ride up and pass freely over the cam, so that the return movement of the 4carriage is not obstructed. The final column stop 18 1 may or may not be pivoted, as it is improvided with any projection 28. I.

Each of the column stops is pivotedupon a mount 9,7, which is preferably in the form of a collar or box' surrounding or fitted upon the column stop rack 19, which has beveled rack teeth`45 on its rear side. The mount Ais illustrated as comprising two portions,

port1on and has a' one of whichv is a body top 46, frontside 47 and bottom 48, to fit p upon the' top, front and bottom ofthe rack,

and a cap portion 49, which fits upon the rear side of the rackk and has a tongue portion 50, to tit between the top and bottom of the body portion. These'portions of the l per and lower screws 51,V 26, the latter serving as a pivot for the column stop' 18, which is mounted between opposite ears 53 extending down from the body ot' .the box'; the cap having a corresponding ear 54 into which the screw 26. is threaded. The tongue portion 50 -of the cap is grooved longitudinally to t over the row of rack teeth 45, which project Y *top vand bottom edges thereof'. A dog 55- readily: secured to the bracket 37, in which the stop by a spring 58 rack teeth 45. The stem levers 13 carrying the' 16'; andthe keys or' (which are below the conducing to cheapnese` and' this edge may up a' ball 64 against the graduated' lengths,

from the rear' side of the bar 19 between the hasl astem 56 and button 57, and is pressed into engagement with the 56 passes through a boss 59 provided upon the cap, and the spring 58` is confined within said boss vto.

ress against the doe. rlhe latter is circular 11i-contour to fit the more 60 in the cap; but the top and bottom of the dogifare flattened at 61 to fit loosely between the ltop and bottom of the body portion 'oir-the box, so that rotation of the dog is prevented.

It will be seen at Fig. top and bottom sides of the dogare flush with the top and bottom surfaces of the tongue portion 50 of the cap. The top side 46 of the mount is preferably beveled down to-an edge., as shown in the drawings, and cooperate with a scale 161 provided upon the top of the rack-bar 19. Toadjust the column stops, it is only necessary to pull the button 57 backwardly, thereby releasing the dog, whereupon the mount may beadjusted along the rack; and upon. releasing the button, the spring 58 will rengage the dog with the rack.

Each column'stop is preferably held down by means of a compression spring 62 having a seat 63 in the top of the dog and pressing outer surface of the 7 that the-lattened A mount; a heel 65 on the dog limiting the downward movementthereot.

It will be seen that the column stops are not only very compactly arranged and very easily adjusted along the rack, but also that vthey 'may be very strong and'rigidly supported.

lVariations may be resorted to within the scope of the invention, and boi-tions of the improvements may be 'used without others, as

for instance the Column stops and their mounts may be used with other varieties of counterstops.

Having thus described my invention, l

claim:

1.' The combination with a carriage, of af rack bar thereon, a plurality of mounts supported wholly `upon said rack bar, and each adjuitable therealong independently of. the others in the direction of the run of the carriage, stops upon said mounts, `certain of said stops pivoted and having rearwardly extending projections, said projections of key-operated cams conneet-ed to said' keys and placed one behind the other beneath the liftable by its key into the path of .the longest projection to withdraw one of the stops, the next cam liftable by its key into the pathIoI" the two longestprojections, .to withdraw two of the stops, and so on throughout the series, and a counter stop.

2. The combination with a carriage, of a rack 'bar thereon, a plurality of mounts sup projections, one cam l ported wholly upon said rack bar, and each s adjustable therealong independently ot' the trolling said rods and extending forwardly to the keyboard and having keys at their forward ends, land a counter-stop settable by any of said keys. v

3. ln a typewriting machine having a keyboard and type-key levers, the combination with a set of tabulator keys in rear of the keyboard, ot levers extending rearwardly from said keys below the type-key levers,rods extehding upwardly from said tabulator levers, a second set of tabulator keys in front of the first and extending rearwardly below the first set of tabulatorl levers, rods extending up from the rear ends` of the second set of tabulator levers and in rear of the first rods, decimal stops carried by one set of rods at their upper ends, cams carried by theI other set ot rods at their upper ends, and column-stops on said carriage engageable by said decimal stops and releasable by said cams. v

4. In a typewritingmachine having a .keyboard and type-key levers, the combination with a set of tabulator keys in rear of the keyboard, of levers extending rearwardly from said keys below the type key leyers, rods extending upwardly from said tabulator levers, a second set of tabulator keys in frontot the first' and extending rearwardly below the first set of tabulator levers, rods extending up from the rear ends of the second set oftabulator levers and in rear of the first rods, decimal stops carried by one vset of rods at their upper ends, cams carried by the other set of rods at their upper ends, and column-stops on said carriage engageable by said decimal stops and releasable by said cams, one of the decimalstop rods having a lug operable by all the rods in the other set.

5. The combination with a 'bar having rack teeth thereon, of a mount fitted upon said bar and ladj ustable therealong and comprising two port-ions detachable from each other and clasping the bar, a releasable' ldog arranged in said mount to engage the rack, a stop upon said mount and movable relatively thereto, and a counter-stop.

6. The combination with a bar having rack teeth thereon, of a mount fitted upon :said bar and adjustable therealong and com- 'rack bar, tot said fastening devices, said column stop ineens? prising a body portion litted upon three sidesA of the bar, and a cap 'portion to close the box, means securing the cap portion to the body portion, a releasable dog` arranged on said can portion to engage the rack, a stop pivoted on said mount. and a counterstop.

7. The combination with a bar having rack teeth thereon, of mount tted upon said bar and adjustable therealong, said mount in the form of a box fitted upon said bar and comprising two portions, one of which has a top, side and bottom to fit upon the bar, the other of which is a cap, means detachablyl securing said cap to said body portion, said cap having a tongue portion to t between the top and bottom of the body portion, said tongue ppi-'tion grooved longitudinally to it over the rack teeth, a dog engaging. said rack teeth and having a stem, a

boss upon the cap through which said stem passes, a spring contined within said boss to operate said dog, and a withdrawing but-` ton on said stem; said dogarranged in a circular seat in the cap, and the dog iiattened to engage the body portion of the box, so that rotation of the dog is prevented.

8. The combination with a bar having rack teeth thereon, of a mount fitted upon said bar and adjustable therealong, said mount in the forni of a box tted upon said bar vand'comprising two portions, one of which'has a top, side and bottom to fit upon the bar, and the other of which is a cap, a device fastening said cap to said body portion, a column stop pivoted upon said tastening device, a spring between said dog and said box, and means to limit the movement of the dogl upon its pivot.

9. The combination with a bar having rack teeth thereon, of a mount tted upon said bar and adjustable therealong,.. said mount in the form of abox fitted upon said bar and comprising two portions, one of which has a top, side and bottom to tit upon the barkand the other of which is a cap, said cap having a tongue portion to tit between the top and bottoni of the body portion, devices securing said cap to said body portion, said tongue portion grooved longitudinally to it'over the row of rack teeth, which pro ,ject from said bar between opposite edges thereof, a dog engaging said rack teeth and having a stem, a boss upon the cap through which said stem passes, a spring conined within said boss to operate said deg, a. withdrawing button on said stein, said dog arranged in a circular seat in the cap, t e top and bottom of the dog tlattened totit ebsely between the top and bottom of the body portion of the box, sotha't rotation of the dog is prevented, one side of said mount beveled to coperate with a scale provided upon sald a columnstop pivoted upon one iso j mounted between ears extending from the box, a spring between said stop and said box; und means to limit the movement of the stop upon its pivot. l

10. The combination with aber having rack teeth thereon, of a mount itted upon said bar and adjustable therealong and comprising a body portion fitted upon three sides of the bai', and a cap portion to close the box, means securing the cap portionfto the body portion, :L releasabie dogarranged" Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents,-

ony said @eppoi-tion to engage the rack, a stop pivoted on saidl mount, and a counterstop; Said stop on sald mount having aprojection arranged to be moved to lift the stop to amineective position when it is to elear a, proj eating counter-stop.

LYMAN D.' BRoUGHToN.

Witnesses: l

MoRToN C. TALCo'i'r, FRANK A. COOK.

Washington, D. C.

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