US1159427A - Type-writing machine. - Google Patents

Description

S. T- SMITH.

TYPE WRITING MACHINE. APPLICATlON HLED JUNE 2,1914.

Patented Nov, 9, 1.915.

S. T. SMITH. TYPE WRITING MACHINE.

APPLICATION FILED. JUNEZ. I914.

Llfigfig? Patented Nov. 9,1915. I

3 SHEETSSHEET 2.

S. T. SMITH.

TYPE WRITING MACHINE.

APPLICAHON FILED JUNE 2. 1914. I

1,159,427; v Patented Nov. 9, 1915.

3 SHEETSSHEET 3- strap erase Parana FFI@E.

STEPHEN '1. SMITH, OF STAMFORD, CONNECTICUT, ASSIGNOR T0 UNDERWOOD TYPE- WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Nov. 9, 1915.

1 0 all whom it may concern:

Be it known that I, STEPHEN residing in Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Typel/Vriting Machines, of which the following is a specification.

This invention relates particularly to typewriting machines of the class in which two machine frames are mounted side by side and each provided with a separate type system, in Combination with a paper carriage translatable from the printing zone of one type system to that of the other.

A feature of the invention is the provision of left-hand and right-hand margin gages or stops for determining the normal letter-feed travel and return travel of the carriage in each printing zone; said margin gages arranged and combined with means to enable the carriage to be carried over from one printing zone to the other without. interference from the gages. The lefthand margin gages cooperate with linelocking mechanisms and means for operating a signal bell. A separate line-lock may be provided for each set of type keys, and release keys may be provided for releasing the keys.

In carrying out the invention, the carriage is mounted to travel on guide ralls, which may extend uninterruptedly across both machine frames to permit the carriage to travel across both printing zones and from one zone'to the other. Right-hand and left-hand margin gages may have a sliding connection witlra rodeXtending across both machine frames, and fiXed at its ends in the outer ends of the machine frames. A single rack bar extending across both machine frames is mounted to rock on said fixed rod as a fulcrum. The left-hand margin gages may have a' sliding connection with said rack bar,'and cams on said lefthand gages may be actuated by a projection on the carriage to depress'said rackbar'and swing forward the lower ends of arms depending from the rack bar, one of the said arms operable to ring a signal bell, and each of said arms arranged to operate a line-locking device for locking a set of typekeys when the end of the been reached. The right-hand margin lifie of writing has gages or stops may be held in any position of adpistment by a fixed rack bar extendmg across the said swinging rack bar. The four margin gages are arranged in alternation, the first, or right-hand gage on the right-hand machine frame determining the beginning of a line in the right-hand printing zone, the second gage determining the end of the line in the right-hand printing zone, the third determining the beginning of a line in the left-hand zone, the end of the line in the left-hand zone. In order to permitthe carriage to be carried overfrom the right-hand to the left-hand printing gage which operates-the line-lockingmcchamsm, is formed to permit the carriage to r de past it, and in order to permit the carriage to movepast the said third gage, the counter-stop on the carriage which is normally intercepted by the right-hand margin gages, is in the form of a latch and may ride over the stop on said third gage. D'aid latch is also operable by a finger key to permit the carriage to be moved from the lefthand zone to the right-hand zone.

Other features and advantages will hereinafter appear.

Certain features of the invention are usable in other connections, as for instance some of the margin gage devices may be used with wide carriages in simple typewriting machlnes.

In the accompanying drawings, Figure 1 is a perspective view of the machine, parts being broken away, and the front guide rail for the carriage removed to show the underlying parts.- Fig. 2 is a detail plan view of one of the left-hand margin gages. Fig. 3 is a sectional detail showing a right-hand margin gage. Fig. l is a sectional elevation view showing the line-locking mechanism in locking position. Fig. 5 is a sectional elevation of the machine, showing the parts in their normal position of rest. Fig. 6 is a fragmentary detail view of a portionof the line-locking mechanism. F 1g. 7 1s a perspective view of. the line-locking mechalnsm, the line lock for the right-hand set of keys being shown in released position. Fig. 8 is a detail view of aline-lock release key.

Two machine frames A and B, which may be the usual Underwood machine frames,

machine frames parallel with and the fourth determiningzone, the cam on the said second.

are mounted side by side on a common base 2, and may be secured to the base by bolts 3, and also secured together by front and rear platesor connecting blocks 1 and 5. secured by screws to the tops of the machine frames. Each frame carriesa type system comprising a set of type-bars 6 fulcrumed on a rod 7 to swing upwardly and rear- Wardly against the front face of a roller platen 8. The type-bars are operated by keys 9 on key levers 10. fulcrumed on a rod 11 and connected through hell cranks 12 to the type-bars. The platen S is mounted in a frame 13 shiftable to upper and lower case position in the paper carriage 11, said carriage mounted to travel on front and rear guide rails 15 and 16, which may extend uninterruptedly across both machine frames. whereby the carriage may be shifted from the printing zone of one set of type-keys to that of the other set.

The carriage may be driven by a spring drum 17 journaled on-one 'of the machine frames and connected through a band 18 to the carriage. The letter-feed travel of the carriage is controlled by escapement mechanism comprising a pmlon 19 running in mesh with the rack 20 on the carriage. said pinion connected to drive an escapement wheel 21 controlled by escapement dogs 22 on a dog rocker '23. the latter being actuated writing -comn 1ences.- are slidably mounted on a ,rod 28, which may be fixed at its ends in the outer ends of the frames A and B, and

which may be supported at an intermediate point by a bracket or wing 29 on the plate t." Adjustable collars 30 may limit. the adjustment of the gages 26 toward the right. Each gage 26 comprises a rearwardly extended arm 31. which has a sliding connec tion with a rack bar 32. provided with rack teeth 33. said rack bar being parallel with the rod 28. and also secured to the outer ends of the machine frames. A holding dog 1-H. pivoted to the gage 2("and operated by a finger-piece isv formed with teeth to engage the rack teeth 83 and positively hold the gage against movement to the right from any position of adjustment along the rack bar. The two gages 26 may be identical in construction. as may also 'the gages 27. Pointers or index fingers 36 may be attached to the gages 2e and 27, each pointer extending over a scale plate 37 mounted on the front plate or guide rail 15, (Fig. 5), said pointers indicating the letter-space positions at which the carriage will be arrested by the gages. A pointer 38 on the carriage indicates the position of the carriage relative to the printing point on either printing zone.

12, saiddogs having teeth to en age teeth l3 on a rack bar H. The rack bar -11 is formed'at its ends with arms 15 journaledon the rod 28, to permit said rack to swing up and, down for actuating the line locks and also for operating a signal bell.

Near the left-hand end of each machine frame is an arm 46, said arms secured to the rack bar H and extending downward, and each provided atits lower end with a pivoted detent 47 carrying a pin .8 to actuate an arm 49, fixed to a rock shaft 50. A locking bail for the key levers comprises a locking rod 51 extending transversely beneath the key leverslO and adapted to be swungforward to engagebeneath hooks 52 on the key levers and thereby lock the latter. Said rod.

51 is carried by arms loose on the shaft 50. The rod 51 is normally held in a released position by an arm 54 fixed to therock shaft 50. the rock shaft 50 being under the tension of a spring bearing againstthe front face of the arm -19.

The rack bar 11 is held upward in normal position by a spring 56, and as the carriage 14. approaches its limit of travel, determined by the position of the margin gage 27, a forwardly extending arm 57 on the carriage strikes a cam 58 on the gage 27 and moves the rack bar downward. thereby swinging the lower end of the depending arm 46 for ward to -an intermediate position. The pivoted detent' J. on the lower end of said arm. as it moves forward, rides on a cam 59 on a rock arm (10, and thereby'rocks the arm (ill-about its pivot (33. said arm carrying the v clapper 61 of a hell (:2. and thus rings the bell to indicate the approach of the carriage toward the end of its travel. After the bell signal is given. the writing may be continued until the arm 57 strikes a high portion o-l. of the cam fiS to further depress the rack bar 44 and swing the arm 46 farther forward.

thereby causing the pin -18 to swing the arm 49 forward. and rock the shaft 50. The arm- 110011.52 on adepressed key, or other obten after the line lock has operated. The

key 66 is provided with a cam 67 which, when the key is pushed in, strikes the arm 46 and cams it laterally, thereby carrying the pin dB to the right and freeing the arm -l9. The spring 55 then rocks said arm 49 rearwardly, and with it the locking rod 51, to release the keys. As the carriage moves forward after the keys have thus been released, the swinging rack 4.4 is permitted to rise to an intermediate position, owing'to the high portion 64 of the cam seating in a depression 68 in the arm 57, so that the arm 46 swings rearwardly to carry the pin 48 be hind the rock arm 49, the detent 47 swinging forward about its pivot to permit the pin 4-8 to ride over the top of the arm 49. The detent 47 drops by gravity to its normal vertical position, but is prevented from swinging beyond such position by a shoulder +7 thereon behind the arm l6. Further movement of the carriage causes the arm 57 to again cam the rack bar 44 downward to I lock the type-keys.

An abutment 69 carried by the margin gage 27 for theleft-hand printing zone, and

prO ecting into the path of the arm 57 on the carriage, forms a positive stop to finally limit the letter-feed travel of the carriage. The abutment 69 is omitted from the stop 27 inthe right-hand zone to permit the carriage to be shifted from one zone to the other.

By reference to Fig. 7, it will be seen that a locking rod 51 is provided for each set of type-keys, and that a separate arm 46' is provided for operating and controlling each locking rod 51. A single bell or signal de vice 6'2 may serve for both type systems, as the swinging rack the bell when the cam 58 in either type zone is actuated by the carriage. A separate release key 66 is provided'for each line look, as shown in Fig. 7, so that either set of type keys may be released independently of the other.

The return movement of the carriage is limited by a stop lug 70 on the. right-hand margin gage 26, said lug lying in the path of a forwardly extending end 71 of a releasing latch 72 connected by a pivot 73-to the carriage, and operable by depressing a tinger-piece 74: on the end of the latch to lift the end 71 above the stop 70. This arrangement permits the carriage to be moved from one printing zone to the other. If it is desired to move the carriage from the lefthandprinting zone to the right-hand zone,

bar 44 operates to ring the key 74 is depressed by. hand, leaving the carriage free ,to move past the stop 7 O.

-moving the carriage from the frame B to the frame A, the end 71 of? the stop latch may ride over the inclined face of the stop 70 without the key 74: being depressed by hand. A spring 75 returns the latch 72 to normal position. The latch 72 also permits the carriage, while in either printing zone, to be returned beyond its normal position, for the purpose of paragraphing, or writing other matter in the left-hand margin of the work-sheet.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with sets of type-bars having separate printing zones, of a carriage mounted to travel from one printing zone to the other, a stop to limit the travel of the carriage in one-printing zone, and means to release the carriage from said stop for moving the carriage tothe other printing zone.

2. In a typewriting machine with separate systems of types having separate printing zones, the combination with a carriage shiftable from one zone to the other, of a margin stop to limit the return movement of the carriage while in the left-hand zone, and, means to free the carriage from said stop and permit it to be shifted to the right-. hand printing zone.

3. In a typewriting machine having sepa rate printing zones, the combination with a carriage and a guide rail on which the carriage is mounted to travel in both printing zones and from one zone to the other, of right and left hand margin gages to determine the limit of travel of the carriage in both directions while in either printing zone.

at. In a typewriting machine having separate printing zones, the combination with a carriage and a guide rail on'which the carriage is mounted to travel in both printing zones and fromone zone to the other, of right and left hand margin gages to determine the limit of travel both directions. while in either printing Zone, said gages each adjustable in the direction of the carriage travel, and means to free the carriage from the right-hand gage of the left-hand printing zone to permit the carriage to be shifted from the left-hand zone to the right-hand printing zone.

5. In a typewriting machine, the combination with separate sets of type-bars and separate sets of type-keys type-bars, of a paper carriage shifta'ble into positions to cotiperate with either set of type-bars, a locking device for each set of of the carriage in for actuating said ate the said locking device for the keys of said zone. L

6. In a typewritmg machine, the combinalocking rod for each set of type-keys movable into and'out of position to lock the keys of its set, a traveling paper carriage,

'a swinging rack bar, margin gages adjustable along said rack bar, cams connected to said gages and ad uStabIe therewith, means on the carriage to engage said cams and swing the rack bar, arms depending from said .rack bar, and means actuated by said arms for controlling said locking rods.

'7. In a typewriting machine, the combination with separate sets of type-keys, of. a locking rod for each set of type'keys movable into and out of position to lock the keys of its set, a traveling paper carriage, a swinging rack bar, margin gages adjustable along said rack bar, cams connected to.

- said gages and adjustable therewith, means on the carriage to engage said cams and swing the rack bar, arms depending from said rack bar, means actuated by sald arms .for controlling said locking rods, anda sig-' nation With separate type-sets and keys for said sets, of a paper carriage movable from the printing zone of one set to the printing zone of the other set, a signal bell, and means operated by the carriage to ring said bell while the carriage is in either printing zone.

10. In a typewriting machine, the combination withseparate type-sets and keys'for said sets, of a paper carriage movable from v the printing zone of one set. to the printing zone of the other set, a signal bell, means operated by the carriage to ring said bell While the carriage is in either printing 'tion with separate sets of type-keys, of apaper carriage, and line-locking mechanism for the keys of the right-hand set, said mechanism operated by the carriage, the carriage being movable past said locking mechanism to the left-hand zone.

13. In a typewriting machine, the combinationfof machine frames placed side by side, a set of types and type keys on each frame, said .sets having separate printing zones, a carriage, a left-hand margin gage for the right-hand zone, an arm on the carriagecoiiperating with said gage, the carriage being shiftable to move said arm beyond the gage and bring the carriage into. the left-hand printing zone.

14. In a typewriting machine, the combinationof machine frames placed side by side, a set of type-bars and type keys on each frame, a swinging rack bar, a left-hand margin gage on the right-hand 'machine frame having a sliding connection with the rack bar and comprisingva cam operable by, the carriage at or near the end of theline of writing in the right-hand zone, and linelocking mechanism operated by said cam to dock the right-hand set of keys, said carriage movable beyond the line-locking .position into the left-hand printing zone.

15. In a typewriting machine, the combination with machine frames placed side by side, of a set oftype-bars and keys on each frame, said sets having separate printing zones, a'swinging rack extending across both machine framealeft-hand'margin gages arljustable along said rack and each compris ing a cam, an arm on the carriage to engage one of said cams at the end of a line of Writing ineither zone, line-locking mechanism operated by said cams to lock the keys, the

cam for the right-hand set formed to per- 'mit. the arm on the carriage to move past the cam for bringing the carriage into the -left-hand zone, and a'stop on the left-hand zone, and line-locking mechanism to lock the set of keys in the zone in which the carriage is traveling.

11. In a typewriting machine, the COIllbination with a plurality of sets of type-bars and keys, said sets having separate printing zones, of a paper carriage mounted to travel in either printing zone, a signal bell, and. line-locking mechanism, said bell and mechanism controlled by the carriage and operated thereby at the end of a line of writing in either zone.

12. In a typewriting machine, the combi nation of frames placed side by side, a set.

of type-bars and type keys on each frame, said sets having separate printing zones, a

cam to positively limit the movement of the carriage to the left while in the left-hand I 16. In a, typewriting machine, the (iambination with machine frames placed side by side, of a set of type keys and type-bars on each frame, a guide rod extending across both machine frames, right and left hand margin gages for both type sets, said gages adjustable along said rod, and a paper carriage shiftable from one printing zone past the inner gages into the other printing zone.

17 In a typewriting machine having two separate sets of types and two separate printing zones, the combination with a carriage and ineans to drive thecarriage in letter-feed direction, of a margin stop to limit the letter-feed movement of the carriage in one printing zone, said carriage movable in letter-feed direction beyond the stopping position determined by said stop to the other printing zone.

. riage and means to move 18. In a typewriting machine having two separate sets of types and two separate printing zones, the combination with a carthe carriage in letter-feed direction, of two sets of5type keys, amargin gage, and line-locking mechanism -controlled' thereby for locking one set of the keys at the end of a lineof writing in one printing zone, the carriage movable beyond the line-locking position determined by the .ad ustment of said gage to the other printing zone.

19. In a typewriting machine, the combination with a system of type-bars and a carriage, of a terminal margin gage which determines the endof the line written by said type-bars, said carriage movable freely past said gage, and a second system of typebars operable to print on the work-sheet on the carriage while the latter is in said position beyond the margin gage, said type-bar systems having separate printing zones.

20. In a typewriting machine, the combination with separate sets of type-bars and keys, of a carriage shiftable into cooperative relation with either set. line-locking mechanism for locking the keys, and separate release keys for independently releasingthe keys of either set.

21. A typewriting machine comprising a plurality of keyboards, a plurality of alphabetical type systems having separate printing zones, one type system for each keyboard, the types of each system individually operable by their keys independently of the types in the other system, a letter-feeding paper carriage adjustable from a position to coiiperate with only one type system to a position for cooperating with'only the other type system, and margin-gage devices to cooperate with said carriage.

22. In a typewriting machine, the combination with two type systems having sepa rate printing zones, of a letter-feeding carriage movable into cooperation with either type system, and margin-gage mechanism to cooperate with said carriage to determine the beginning and ending of the line of writing when the carriage is cooperating with each of said typesystems.

23. In a typewriting machine, the combination with two type systems-having separate printing zones, of a letter-feeding carriage movable into cooperation witlreither type system, and margin-gage mechanism to cooperate with said carriage to determine the beginning and ending of the line of writing when the. carriage is cooperating with each of said type systems; said margingage mechanism comprising a carriagearresting device which is releasable to permit the transit of the carriage from one type system to the other.

24. In a typewri-ting machine, the combination with two typesystems having separate printing zones, of a letter-feeding carriage movable into cooperation with either type system, and margin-gage mechanism to coiiperate with said carriage -to determine the beginning and ending of the line of "writing when the carriage is cooperating with each of said type systems; said margingage mechanism comprising a carriagearresting device which is releasable. to permit the transit of the carriage from one type system to the other in the direction opposite to letter-feeding direction.

25. In a typewriting machine, the combination with two type systems having separate printing zones, of a letter-feeding carriage movable into cooperation with either type system, and margin-gage mechanism to cooperate with said carriage to determine the beginning and ending of the line of writing when the carriage is cooperating with each of said type systems; said margingage' mechanism comprising a carriage-arresting device which is releasable to permit the transit of the carriage from one type system to the other in the direction opposite to letter-feeding direction, and also comprising a carriage-arresting stop which is releasable to permit the carriage to advance in letter-feeding direction from one type system to the other.

26. In a typewriting machine, the combination with two type systems having separate printing zones, of a lettenfeedingcan riage movable into cooperation with either type system, and margin-gage mechanism to cooperate with .said carriage to determine the beginning and ending of the line of writing when the carriage is cooperating with each of said type systems; said margin-gage mechanism comprising a carriage-arresting device which is releasable to permit the transit of the carriage from one type system to the other in the direction opposite to letterriage-arresting stop which is releasable to permit the carriage to advance in letterfe'eding direction from one type system to the other; said carriage'being also freely movable past the last-mentioned stop when passing from one type system to the other in a direction opposite to letter-feeding direction.

27. In a typewriting machine, the combination with two separate systems of types having separate printing zones, of a carriage movable from one zone to the other, separate keyboards for said type systems, and line-locking mechanism for, said keyboards, said line-locking mechanism under thecontrol of saidcarriage.

28. In a typewriting machine, the combination with two-separate systems of types having separate printing zones, of a carriage movable from one zone to the other, separate keyboards for said type systems,

tems having separate printing zones and a carriage shiftable to position to cooperate with either type system and having letterfeeding movements when in cooperation with each type system, of margin gages for controlling the length of the written line when said carriage 1s cooperating with each type system; said carriage being movable,

from one printing zone to the otherindependently of said margin gages.

30. The combination with two type systems having separate printing zones and a carriage shiftable to position to 006 erate with either type system and having etterfeeding movements when in cooperation with each type system, of margin gages for controlling the length of the written line when said carriage is coiiperating with each type system; said carriage being movable from one printing zone to the other independently of said margin gages, and linelocking mechanism controlled by a plurality of said margin gages. A

31. The combination with two type systems having separate printing zones and a carriage shiftable to position to cooperate with either type system and having letter feeding movements when in cooperation with each type system, of margin gages for controlling the length of the Written line when said carriage is cooperating with'each type system; said carriage being movable from one printing zone to the other independently of said margin gages, line-locking mechanism controlled by a plurality of said margin gages, and means to release the line locklng mechanism.

32. The combination with two keyboards Y and two type systems having separate printing zones, of a carriage shiftable toposition to cooperate with either type system and having letter-feeding movements when in cooperation with each type system, margin gages for controlling the length of the written line when said carriage is cooperating with each type system; said carriage being movable from one printing zone to the other independently of said margin gages, and separate line-locking. mechanisms for said keyboards, said line-locking mechanisms under the control of certain of said margin gages.

33. The combination with two type systems having separate printing zones and a carriage shlftable to position to cooperate with either type system and having letterfeeding' movements when in coiiperation with each type system, of margin gages for controlling the length of the written line when said carriage is cooperating with each type system; said carriage being movable from one printing zone to the other inde pendently of said margin gages; the first of said margin gages determining the beginning of a line in the right-hand printing zone, a second gage determiningthe end of the line in the same zone, a third gage determining the beginning of a line-in the lefthand zone, and a fourth gage determining the end of the line in the last-mentioned zone.

34. A'typewriting machine comprising a plurality of keyboards, a plurality of alphabetical type systems having separate printing zones, one type system for each keyboard, the types of each systemindividually operable by their keys independently of the types in the other system, a letterfeeding paper carriage adjustable from a position to cooperate with only one type system to a position for cooperating with only the other type system, and margimgage and line-locking devices to cooperate with said carriage.

STEPHEN T. SMITH. Witnesses W. O. WEs'rPHAL, Trros H. IRVON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of ftatents, Washington, D. C,

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