US1041491A - Attachment for type-writers. - Google Patents

Description

L. LAMARQUE. ATTACHMENT FOR TYPE WRITERS.

APPLIOATION 11.31) mm: 2, 1911 1 ,04 1 ,4 9 1 Patented 001". 15, 1912.

4 SHEETS-SHEET 1.

WITNESSES INVENTOR [w lamargua m By ATTORNEYS L. LAMARQUE. ATTACHMENT FOR TYPE WRITERS.

APPLICATION FILED JUNE 2, 1911.

1,041,491., Patented 001:. 15, 1912.

4 SHEETS-SHEET 2.

WITNESSES Q INVENTOR firm my er W.

ATTORNEYS L. LAMARQUE. ATTACHMENT FOR TYPE WRITERS. ArPLwATfoN FILED JUNE 2, 1911.

LMLAQL Patented 0ct.15,1912.

4 SHEETS-SHEET a.

WITNESSES IA/l/EIVTOR W Law jamwryue m mk W typewriting machine.

v Application 'file'd June 2, 1911. Serial No. 630,866.

' TED STATES PATE T ornicn.

I Y tins im m, or ILABANA, cum.

To all who'rri it mdy 1 .Be' it known that'I, LUIS'LAMAR UE, a citizen of .the- Republic of Cuba, and a x resident of Habana, Cuba, have invented a new, and Improved Attachment. for Type- Writers, of which the following is a full, clear, and exact description.

My invention relates to typewriters and has three distinct purposes, to wit :.I. To facilitate the winding and unwinding of the typewriterribbon; II. To provide means for -pr1nting at practically a single stroke, an

entire line or any desired part of a line or repeated characters, such as dots or stipples; and III. To providea special mechanism for carrying out the purposes just mentioned and improving generallythe efficiency of the More particularly" stated my invention comprehends a platen roller movable in the general direction of the length of its axis, a ribbon movable in the general direction of its own length, and a character wheel provided with .a printing surface consisting of stipples or the like to be printed repeatedly in the form ofa line. or part thereof, the character wheel being turned by its engagementwith the ribbon and pressing, through the ribbon, against the roller as the'latter' moves in thedirection of its own axis.

My invention further comprehends means for moving the character wheel from a position of idleness into one of activity,'and also for moving-the ribbon in a direction lateral to its general length in order that, at the will of the operator, the ribbon may be moved into and out of the path of bodily movement of the character wheel;

Reference is to be had to the accompanying drawings forming a part" of this specification, in which like characters of reference indicate corresponding parts in all the machine partly broken away and embodying .my invention;- Fig. 2 is a vertical transverse sect-101i through-the. machine looking rearwardly; Fig. 3 is a vertical longitudinal section through the machine, looking toward the left, and showing the several parts in their. normal inactive positions. Fig. 4 is a section onzthe sameline as Fig. 3, but showmg. the; parts in vtheiractive positions;

'Fig.5- is aside elevation showing'the Iliachineiasxseen ,by an observer stationed "at the left ,of Fig, 1 and looking toward the 3 Specificationof Letters Patent.

action. Disposed adjacent to the guide 21 is ar rncrmtnnr ma mn-wnirnns.

' Patented o t. 15, 1912.

right; Fig. 6 is adetail showing how the rack bar used in connection with the rota-- tion of the ribbon spools is brought'directly w thin the control of the operator; and F igxjw 7 1s a fragmentary section on the line 77 of Fig. 6, looking in the direction of the arrow.

The main frame of the typewriter is shown at 7 and isprovide'd with a keyboard 5 extension 8 upon which keys 9 are mounted in the usual manner, the main frame and key boa-rd being fixed.

The carriage frame is shown at '10 and is moved relatively to the main frame 7. Se-

cured to the carriage frame 10 are two yokes 11 which extend in opposite directions and are bent downwardly, as will be understood from Fig.2. The outer ends of these yokes are secured to bearings 12 which are mounted upon opposite ends of a rack bar 13. This rack bar is, for aconsiderable portion onits under side, provided with rack teeth 14. The rack bar 13 is slidably mounted within brackets 15 which are secured upon the main frame 7. i

The platen roller is shown at 16 and is mounted upon a platenshaft 17-, the latter being provided at its ends with handwheels 18,18. The platen shaft 17 is journaled relatively to the carriage frame 10 and the platen'roller vcan be. turned by rotating the hand wheels 18 -The carriage frame is supported by aid of a fixed slide rod 19 which is sustained by the main frame, and upon which the carriage frame is adapted to slide.

A type segment'is shown at 20 and is pro vided with a guide 21' having a slot 21'- through which the type bars strike while in a ribbon guide 22 provided withislots 23 through which isthreaded an ink ribbon 24. This, ribbon ispartially wound upon two spools '25, 26, the latter being revolubly mounted within casings27 28. .These casings respectively are provided with slots '29, 30, through which the ribbon is adapted to travel. The spools 25, 26 are mounted upon vertical shafts 31, 32. These shafts are, at their lower ends, provided with bevel gears 33, 34:. Meshing with these bevel ears are other bevel gears 35,36. The sha ts 31, 32 are journaled in hangers 37, 38 which are stationary, being mounted upon the main frame.) Two horizontal shafts 39, 40 are journaled within the'hangers 37, 38, and

upon them arev mounted ratchet wheels 39 and 40", and the bevel gears 35, 36 which latter mesh with the bevel gears 33, 34. As is usual and well known, the ratchet wheels 39 and 40 are each operated by a reciprocating pawl 110, and a non-reciprocating pawl 111 is also in engagement therewith. The pawls 110 are mounted on a rock shaft 112, actuated as usual, and are each supported upon a spring 113 which is carried by the respective end of the centrally pivoted bar 114 which extends the width of the machine and has a handle 114 at its right-' hand end. The ends of bar 114 also carry the non-reciprocating pawls 111 and thus either of the ratchet wheels 39 and 40 may be clutched by raising the respective end of bar 114 in the Well known manner. In Figs. 5 and 6, the left-hand ratchet wheel 39 is clutched, and attention is now called to the fact that my invention as hereinafter clearly pointed out is adapted to operate with the parts in this position only. In accordance with my invention the shaft 39 also carries a bevel gear 41 mounted rigidly upon it and meshing with a bevel gear 42. The latter, (see Fig. 6) is secured firmly upon a revoluble shaft 43 and revoluble therewith. Encircling this shaft is a spiral spring 44 which controls a clutch member 45. clutch member is splined upon the shaft and is adapted to slide relatively to the-latter in the general direction of the length thereof. Another clutch member 46, mating the clutch member 45, is mounted upon the shaft 43, and is loose relatively to the same. The shaft 43 adjacent to one of its ends, terminates in a flat head 48 which carries a pivot 49. This pivot is mounted upon a plate 50 which is provided with a slot 51, (see Fig.

7), and adapted to be adjusted sllghtly in a vertical direction. For this purpose two screws 52 extend through the slot 51 and may be loosened or tightened at will. By

shifting the plate 50 relatively to the main frame 7 upon which it is mounted, the pivot 49, and consequent-1y the adjacent end of the shaft 43, may, within reasonable limits, be moved up or down. 'The lower end of the plate 50 is formed into a head 53 which is vprovided with a slot 54. A bolt 55 extends through this slot and is mounted upon a lever 56. This lever is mounted to rock upon a pivot 57 and is provided with a handle 58. The operator, by grasping and operating the handle 58 to rock the lever 56, can cause the gear wheel 47 to move bodily upwardly or ownwardly by means ,of the connecting plate 50, as indicated by full and broken lines in Fig. 6, in order to respectively engage with, and disengage from, the rack bar 13 above described and shown particularly in Fig. 2.

, The spacing bar is shown at 59, and is carried by the two spacing bar levers 60. I

- provide a new key 62 which, because of its This wheel key 62 is depressed, the fingers 63, 65 carry downwardly the spacing bar levers 60* and the tabulating lever 64, as will be-understood from Fig. 4.

Pivotally connectedwith the lever 61 is a pitman 67. This pitman is pivotally connected with acrank 68, the latter being rigidly mounted upon a rocking bar 69. This rocking bar carries another crank 70 and connected with the latter is a link 71. This link is swiveled to a crank 7 2 which. is mounted upon a bracket 73, the latter being secured upon the type segment 20. The bracket 73 is provided with a reduced portion 73 serving as a journaled neck and upon which the crank 72 is mounted. This Mounted upon the carriage frame 10 is I a head 76 provided with a pointer 77 (see Fig. 1) which moves adjacent to a plate78, and secured upon this plate is a graduated strip 79. The purpose of the pointer 77 and graduated strip 79 is that of an indicator for disclosing the position of the carriage relatively to the fixed frame. The spacing bar levers 60, at their rear ends, are connected'by a bar 60 (see Fig. 3), and extending backwardly and slightly upwardly from. this bar is a toe 80. This toe engages an arm 81 which is mounted upon a stub shaft 82. Another arm 83 is mounted upon this stub shaft and projects upwardly from the same. Pivotally connected with the upper end of the arm 83 is a bar 84 carrying a bracket 85,this bracket structively provided with a slot-86. Extending into this slot 86 is a pin 87 which is carried by a lever 88. This lever is,

mounted upon a stub shaft 89 and'is provided with a downwardly and forwardly projecting portion--90. Pivotally connected with this portion of the lever is a plate 91 extending vertically. The guide 22 is mounted upon this plate and is integral with being bent back upon itself and thus conit. The pivot89 upon which the lever 88 is mounted is carried by a bracket 92 which extends laterally from a cross bar 93, as will be understood from Fig. 3. The

bracket 92 thus merely serves the purpose of a hanger relatively to which the lever 88 is journaled. A link 94 is pivotally connected to the lever 61. A spring 95 supports the rear end of the lever 61 at a point adj acent to the lower end of the link 94, and the upper end of this link is pivotally connected to a lever 96 extending from the usual tabu lating bar 96. This lever is journaled upon a shaft 97 and carries an adjustable dog 98. The carriage frame 10 is provided with a lug 99 for limiting the travel of the carriage frame relatively to the fixed frame, when the dog 98 on the t-abulating bar 96 is in the position indicated in Fig. 4.

Adjacent to the lug 99 is a cross bar 100. Other cross bars 101, 102, 104, 105 are provided for the purpose of bracing different portions of the framework, and also for supporting various parts. The cross bars 104, 105 serve as limiting stops for preventing excessive travel of the key levers 61 and respectively. A lever 106 (see left of Fig. 1) is employed in the usual manner for controlling a limited rotation of the platen roller 16 in order to place the lines to be typewritten.

The operation of my device is as follows: The parts being arranged as above described, I will assume at the start that the machine appears as indicated in Figs. 1 and 2.. The ribbon 24 and the character wheel 75 are now in different planes. In order to render the character wheel 75 operative, it is necessary that the character wheel be brought against the outer face of the ribbon 24 The machine is now in condition for doing typewritten work. Suppose, now, that the character wheel 7 5 is provided with ordinary dot stipples and that the operator desires to print'a number of these stipples in a straight line extending all, or a part of the distance across the sheet of paper. The operator presses the key 62. The finger 63 carries downward the lever 60 and spacing bar 59. The finger 65 causes the lever 61 to descend. The lever 64 in descending pulls the pitman 67 (seeFig. 4) downward, thus causing the cranks 68, 70 to rock slightly in a clockwise direction. The movement of the crank 70 pulls upon the link 71 and by turning the cranks 72, 74, causes the character wheel 75 to move toward the platen roller 16. At the same instant when this occurs, the depression of the levers 60 causes the toe S0 to raise the arm 81 and thus rock the crank 83. This carriage.

iiig with it the guide 22 and the portion of the ribbon 24 where it is threaded through the slots in the guide 22, as "will be understood from contrasting Fig. 4 with Fig. 3. The ribbon 24 is thus raised just far enough to bring it centrally in the path of travel of.

the character wheel 75, so that the character wheel is pressed against the proximate cen* tral portion of the ribbon. A depression of the lever 69 (Fig. 3) lowers the link 94 for causing the lever 96 to move the tabulating bar 96 so that the dog 98 engages the lug or stop 99 whereby the carriage is limited in its movement. As soon as the ordinary tabu'lating bar 96 has been moved to the position shown in Fig. 4, the carriage will move automatically under the action of the usual spring to a posltion'against the stop and during its movement the character wheel 75 will print a line of characters. When the tabulating bar 96 has been moved to the position shown in Fig. 4, the carriage is released in the usual manner according to whatever particular mechanism is used on the particular machine. As the carriage is moved from right to left when my attachment is in operation, the platen roller 16, of course, moves with the carriage and the ribbon 24 moves similarly to the left in the sense that it is wound upon the spool 25 and unwound from the spool 26. This operation is possible only when the ratchet wheel 39 is clutched and the carriage is being moved to the left, which transmits rotation to the shaft 39 in the same direction it would be driven by the step-by-step actuating means including the reciprocating pawl, and thus the teeth of the ratchet wheel slide over the pawls 110 and 111. Should the carriage be moved toward the right the ratchet wheel 39 would be pre vented from turning by the pawls 110 and 111 and the clutch members 45 and 46 will be forced apart against the tension of spring 44 in order to permit the gear wheel 47 to be rotated without causing rotatioh of shaft 43. The spool 25 is turned, as above explained, by transmission of rotary motion through the shaft 31, gears 33, 35, the shaft 39, gears 41, 42, shaft 43, gear wheel 47, and the rack bar 13, which moves with the The net result is that when the carriage is moved to the left, either for a short distance or for a distance representing a line or considerable portion thereof, the ribbon 24 is moved to the left at a rate of speed commensurate with the travel of the platen roller 16.

The spools carrying the ribbon 24 are operated 1n the usual manner by the usual mechanism of the typewriter, the mechanism being of course differentin different machines. The gear 42 (Fig. 6) and associated gearing and other mechanism is uti lized only when it is desired to'move the ribbon during the time that the carriage is released. This mechanism s connected up to the usual spool operatlng mechanlsm when the carriage is released for causing the character wheel 25 to operate, and 1s disconuccted therefrom when the typewriter is being used in the ordinary way.

When it is desired to connect the carriage to the ribbon spools the lever 58 is depressed. This will cause plate 50 to be raised and also gear wheel to be raised until the same is in mesh with rack 14. This will cause the spools to operate in proper timed relationship to the carriage. Suppose, now, that the operator wishes to restore the ribbon to a predetermined position which it has occupied, or in other words,'to run the ribbon backward, he proceeds as follows: Grasping the handle 58 of the lever 56, he raises the handle and in so doing lowers the plate 50 (see Fig. l 5), and consequently lowers the gear wheel 47. This releases the gear wheel in question from the rack bar 13, and enables the spool 26 to be turned after reversing the pawl clutch in such a direction as to draw the ribbon 24, thus pulling this ribbon through the guide 22 and unwinding the ribbon from the spool 25.

Where the character wheel 7 5 is operated upon a portion only of a line, and the line is afterward finished, say, by writing in words, the carriage is restored to its starting point, to all intents and purposes, in the manner already known in this art. The retrograde movement of the carriage, however, causes the rack bar 13 to turn the gear wheel 47 the member 45 sliding backward idly relatively to the member 46 as before described so that the spools 25, 26 are not at this instant turned.

In order to restore the character wheel 7 5 to its normal position, as indicated in Fig. 3, and also to restore the ribbon'24 to its normal position as indicated in said figure, the pressure upon the key 62 is simply removed.

he pressure on the spring 95 (see Fig. 4) now restores this key and its restoration insures the restoration of the key 66 and the spacing bar 49 to normal position.

While I have shown and described my invention as applied to only one'kind of typewriting machine, it should be understood that I do not limit myself thereby, as obviously my improvement can be applied to various machines of other kinds. 'Neither do I limit myself to the precise shape'o'r form of any particular part, the scope of my invention being commensurate with my claims. 1

Having thus';;described my invention, what I claim as new and desire to secure by Letters Patent is':-

1. In a typewriter, the combination with a movable carriage, a platen carried thereby, a ribbon, and a step-by-step ribbon feed mechanism, of a key actuated character wheel movable into engagement with the ribbon and the platen, a gearing forming a direct connection between the carriage and one ribbon rotating shaft of the said ribbon feed mechanism, and means whereby to throw said gearing into, and out of operation.

2. In a typewriter, the combination with said shaft in order to engage its said gear wheel with said carriage rack.

33. In a typewriter, the combination with a movable carriage having a rack bar, a platen carried by said carriage, a ribbon, and a step-by-step ribbon feed mechanism, of a key-actuated character wheel movable into engagement with the ribbon and the platen, a shaft movably mounted in connection with the machine and having a geared connection with one ribbon rotating shaft of the said ribbon feed mechanism, a gear wheel loosely mounted on said shaft, a spring controlled clutch forming a connection between said shaft and said gear wheel, and a lever mounted on the typewriter and having connection with said shaft whereby to move the same in order to cause engagement of its gaid gear wheel with the said'carriage rack a vertically movable. ribbon guide, a ribbon movable through said guide and movable vertically therewith, a ribbon feed mechanism for moving the ribbon through the guide, and a mechanism whereby to move the ribbon guide vertically, of a character wheel movable toward and away from the 4. In a typewriter, the-combination with- 1 a movable carriage, a platen carried thereby,

platen and normally in, a plane above-that of the ribbon, and key actuatedconnections for moving said character wheelaga-inst the platen, having means to actuate the said ribbon, guide moving means and to release the said carriage,.substantially as described.

In testimony whereof *I-have signed my name to this specification in the presence of two subscribing witnesses.

LUIS LAMARQUE.

'Witnesses:

ENRIQUE J. MONTALIEN, G. STEWART ONEILL.

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