US1033709A - Type-writing machine. - Google Patents

Description

f'. LASERE.

TYYE WRITING MACHINE.

APPLICATION FILED JULY 2z, 1911.

Patented. July 23, 1912.

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F. LASERE.

TYPE WRTING MACHINE. APPLICATION FILED JULY z2, 1911.

1,033,709. Patented July 23,1912.

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44 52 4@ ff@ M 52 d l @4L 55 4@ zu a FREDERICK LASERE, OF CLEVELAND, OHIO.

TYPE-VRITING MACHINE.

To all fw/wm t may concern:

Be it known that I, FREDERICK LAsERE, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented new and useful Improvements in Type-Vriting Machines, of which the following is a specification.

The invention relates to typewriting machines, and has for its primary object to provide a machine of this character in which the type is yarranged at the periphery of a rotatable wheel adapted to be manually turned to bring the desired type letter into position, so that the same may be printed upon the sheet held about the platen, the rotatable wheel being provided with independent rows of small-letter and capitalletter type, so that an impression therefrom may be had on reciprocation of a hand actuated carriage supporting the rotatable wheel.

Another obj ect of the invention is the provision of a typewriting machine in which the platen is automatically moved in a step by step manner on the reciprocation of the carriage supporting the type wheel, and that may be manually moved for a regular spacing between each printed word, or at any desired point in a line.

A further object of the invention is the provision of a typewriting machine which is simple in construction, reliable and eiiicient in operation, and inexpensive in manufacture.

With these and other objects in view, the invention consists in the construction, combination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the claims hereunto appended.

In the drawings: Figure1 is afront elevation of a typewriting machine constructed in accordance with the invention. Fig. 2 is a top plan view thereof. Fig. 3 is an end elevation. Fig. 4 is a sectional view on the line 4 4 of Fig. 1. Fig. 5 is a fragmentary detail plan view with the type wheel and carriage removed.

Specification of Letters Patent.

Application led July 22, 1911.

Patented July 23, 1912.

serial No'. 639,912.

Similar reference characters indicate corresponding parts throughout the several views of the drawings.

Referring to the drawings by numerals, the typewriting machine comprises a base 10 which may be made. from metal or other suitable material, and is preferably of rectangular shape, on the upper face of which, near the rear end thereof, are mounted spaced parallel guide tracks 11, in which is slidably mounted a platen supporting carriage, comprising a sliding base plate 12, the latter at its longitudinal edges engaging in grooves 13 formed in the inner edges of the tracks 11, and fixed to and rising from opposite ends of the base plate 12 are vertical bearings 14, in which is ournaled the spindle ends of a rotatable cylindrical platen 16, the same being formed at one end with a ratchet wheel 17 iixed thereto, and with which engages a spring locking dog 18 fixed to the base plate 12, which is adapted to sustain the platen in adjusted position and to prevent the free rotation thereof.

Fixed to and mounted on one spindle end 15, preferably at the left side of the platen, is a knurled hand knob or wheel 19, which permits the manual rotation of the platen, when desired, for advancing a sheet trained thereover.

Arranged beneath the platen 16 and fixed to the base plate 12 are forwardly directed resilient supports 20 provided with bearings 21 at their forward ends, in which is journaled a guide roller 22, the latter being designed to contact with the platen 16 for guiding a paper sheet about the platen, when inserted in the carriage for receiving an impression from the type upon a'type wheel, presently described.

Pivoted in the bearings 14 of the carriage are the limbs 23 of a paper holding frame 24, which isadapted to swing over the top of the platen 16, so as to sustain the paper sheet trained thereover taut and in close contact with the same, the frame 24 being connected with a coiled retractile spring 25 which is also connected with one of the bearings 14, thereby exerting a constant holding the paper sheet about the platen, so

as to prevent the slipping of the paper, when operating the machine.

Carried by the bearings 14 are substantially L-shaped arms or brackets 26, the vertical portions 27 of which have detachably connected thereto an inked ribbon or strip 28 which is interposed between the platen and the type wheel, presently described, as is usual, for transferring the impression from the type thereon to the paper sheet upon the platen supported within the movable carriage.

Secured to the upper face of the base, medially thereof, and at right angles to the tracks 11 are spaced parallel guide tracks 29, the same being provided at their inner edges with grooves 30, in which are slidably engaged the opposite longitudinal edges of a movable type wheel carriage, comprising a base plate 31, near the inner end of which and rigidly mounted therein is a vertical type wheel supporting post 32, which rises from the base plate and has j ournaled thereon a rotatable type wheel 33, the same carrying at its periphery, throughout the circumference thereof, a type strip 34 formed with a plurality of rows of type 35 and 36, the type 35 being small letters, while the type 36 are capital letters.

Fixed to the upper end of the post 32 is a U-shaped horizontally disposed member 37, in which is connected a locking dog 38 by means of pivots 39 threaded in the limbs 40 of the said member 37, they dog 38 being adapted to engage in any one of a series of indicating notches 41 formed in the upper face of the type wheel adjacent to the periphery thereof, so as to hold the said wheel locked when a predetermined type is positioned for an impression upon the paper about the platen of the machine. The rows of type 35 and 36 represent the letters of the alaphabet, which are arranged out of consecutive order, and like letters of the two rows are arranged in alinement with each other, and upon the upper face of the type wheel 33, between the outer periphery and the notches 41, is disposed a lettered face strip 42, the lat-ter being printed thereon and being in alinement with the letters in the rows of type, so that an operator, at a glance, may determine the proper position of the type that is desired to be impressed on the paper while in the act of writing upon the machine.

Mounted upon the outer periphery of the type wheel or formed integral therewith, medially between the ends of the type strip 34, is alinger arm or nib 43 which permits the quick and convenient rotation of the type wheel for the positioning of the letter desired to be impressed upon the sheet carried by the platen. Suitably fixed to the member 37 is one end of an upwardly bowed leaf spring 44, the' free end of which frictionally engages the dog 38, and is designed to hold the same in position for locking engagement in the notches 41, so that when the dog 38 is engaged ,in any one of said notches, the type wheel will be held against rotation.

Fixed to and rising from the base'plate 31 of the type wheel supporting carriage, forwardly of the post 32 thereon, is a bearing 45, in which is fulcrumed a depressible rocking lift bar or lever 46, the inner end of which is formed with a fork 47, the branches of which extend rearwardly at opposite sides of the post 32, and against which rests the type wheel 33, the latter being normally lowered, so that the small letters in the type row 34 will be positioned in a plane level with the axis of rotation of the platen for impression upon the paper supported thereby, when the machine is being operated. However', it will be noted that on depressing the bar 46, the type wheel will be raised to a plane so as to bring the capital letters in the type row 35 in a level with the axis of rotation of the platen for the impression of any one of the same upon the paper sheet thereon.

The type wheel carriage is reciprocatingly mounted upon the tracks 29, so that upon movement thereof toward the platen 16, the desired letter upon the type strip 34 may be brought into contact with the ribbon, so as to force the same against the paper sheet upon the platen for the impression of the latter on said sheet, as will be clearly obvious.

Suitably connected with the type wheel carriage is one end of a coiled retractile spring 4S, the opposite end of which is suitably connected to the base 10, so as to normally sustain the carriage in retracted position, thereby holding the type wheel away from the inked ribbon, and in contact with a stop lug 49 fixed in the base in the path of movement of the base plate 31 of the type wheel supporting carriage.

Arranged between the type wheel supporting carriage and the platen carriage is an automaticallyV and manually operated feed mechanism for advancing the platen carriage in step by step manner, comprising a bearing 50, the same being fixed to the base 10 below the plane of the type wheel supporting carriage, and has connected thereto a spacer lever or bar 51, the same terminating in a finger grip 52 at its outer end, and is connected with the bearing 50 by means of a pivot 53, the inner end of the lever or bar 51 being outturned to form an abutment extension 54 arranged in the path of inward movement of the type wheel supporting carriage, so that its base plate 31 will engage the same and cause the automatic movement of the spacer bar or lever. Formed on the spacer lever or bar 51 at right angles thereto and eXtended in the direction of the movable carriage for the platen is a branch arm 55, the track 11 adjacent thereto being provvided with a gap 56, through which the said arm 55 extends and has pivotally connected thereto a rack pawl 57, which engages the teeth 58 of a rack bar 59 fixed to the under face of the base plate 12 of the platen or carriage longitudinally thereof, so that on the advancement of the type wheel carriage toward the platen carriage, the pawl 57 will engage one of the teeth 58 of the rack bar 59, and as the spacer bar or lever 51 is rocked, the said platen will be caused to advance and space between the letters, prior to the printing of a letter upon the paper sheet carried by the platen. However, it is obvious that when the spacer lever or bar 51 is manually operated in one direction, the platen cariage will be spaced in a like manner independently of the movement of the type wheel carriage, but when the type wheel carriage is operated the platen is spaced in a step-by-step manner in successive order, during the operation of the machine.

Pivoted upon the base 10 in the path of arcuate movement of the spacer lever or bar 51 is a swinging abutment finger 60 which limits the swinging movement of the said spacer bar or lever 51, when being manually or automatically moved, so as to prevent the pawl 57 from disengaging from the teeth 58 of the rack bar 59, thereby assuring the advancement of the platen carriage, and when it is desired to move the carriage to the right of the base, it is necessary to shift the abut-ment finger 6() out of the path of movement of the spacer bar or lever 51, so that the latter may be swung into contact with a stop lug 61 which shifts the pawl away from the teeth 58 of the rack bar, whereupon said platen carriage can be moved toward the right of the base, when it is desired to begin a new line upon the paper sheet carried by the platen, or when it is desired to print upon the said paper sheet at any point longitudinally of the platen.

Connected with the spacer lever or bar 51 and the pawl 57 is a coiled expansion spring 62 which is designed to sustain the said pawl 57 in positive engagement with the teeth 58 of the rack bar 59, but will permit said pawl 57 to trip over the teeth of the rack bar when the platen carriage is manually shifted toward the left side of the base. Also connected with the arm 55 and to the base 10 is a coiled retractile spring 63, which is designed to sustain the spacer lever or bar 51 in normal contact with a stop lug 64 rising from the base, the spacer lever thereby holding the pawl into position for positive engagement with the teeth of the rack bar 59, so that when the extension 54 lof the said lever or bar 51 is engaged by the type wheel carriage, the pawl will effect the advancement of the platen carriage toward the left side of the base prior to the bringing of the paper sheet about the platen.

Fixed to the base 10 is a stationary finger grip 65, with which is engaged one finger of the hand, when the thumb thereof is engaged with a finger arm 66 iiXed to the type wheel carriage, so that the latter may be conveniently and readily moved toward the platen at the printing point thereof.

What is claimed is:

1. In a typewriting machine, a base, pairs of tracks arranged thereon at right angles to each other, a platen carriage slidably engaging in one pair of tracks and adapted to support an inking ribbon, a type wheel supporting carriage movable toward and away from the platen carriage, a type wheel rotatably mounted upon and vertically adjustable on said type wheel supporting carriage, a platen journaled in said platen carriage, a rack bar fixed to the under face of the platen carriage, andspacer means engageable with the rack bar and operated by the type wheel supporting carriage when moved in one direction for advancing the platen carriage.

2. In a typewriting machine, a base, pairs of tracks arranged thereon at right angles to each other, a platen carriage slidably engaging in one pair of tracks, a type wheel supporting carriage movable toward and away from the platen carriage, a type wheel rotatably mounted upon and vertically adjustable on said type wheel supporting carriage, a platen journaled in said platen carriage, a rack bar iXed to the under face of the platen carriage, spacer means engageable with the rack bar and operated by the type wheel supporting carriage when moved in one direction for advancing the platen carriage, the said carriage being adapted to support an inking ribbon, means for holding the spacer means in normal posi tion, and a hand grip on said spacer means for moving the same out of engagement with the rack bar, whereby the platen carriage may be manually shifted.

3. In a typewriting machine, a base, pairs of tracks arranged thereon at right angles to each other, a platen carriage slidably en gaging in one pair of tracks, a type wheel supporting carriage movable toward and away from t-he platen carriage, a type wheel rotatably mounted upon and vertically ad- -justable on said type wheel supporting carriage, a platen journaled in said platen carriage, arack bar iiXed to the under face of the platen carriage, spacer means engageable with the rack bar and operated by the type wheel supporting carriage when moved in one direction for advancing the platen carriage, the said carriage being adapted to support an inking ribbon, means for hold- In testimony whereof I ailix my signature ing the spacer means in normal position, a in presence of two witnesses. hand grip on saicl spacer means for moving FREDERICK LASERE the same out of engagement with the rack 5 bar,v whereby the platen carriage may be Witnesses:

manually shifted, and means for limiting JULIAN 'FY-BELL, the movement of the spacer means. JOHN G. HINES.

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

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