US1228423A

US1228423A - Type-writing machine.

Info

Publication number: US1228423A
Application number: US10116416A
Authority: US
Inventors: Harry Ellwood Ellis; John W Wilhelm
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-06-01
Filing date: 1916-06-01
Publication date: 1917-06-05
Anticipated expiration: 1934-06-05

Description

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TYPE WRITlNG MACHINE.

APPLICATION FILED JUNE-1, 1916.

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H. E. ELLIS & I. W

TYPE WRITING MACHINE. APPLICATION FILED JUNE 1. I9I6.

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TYPE WRITING MACHINE.

APPLICATION man JUNE 1. 1916.

1,Q28,423w Patented June .3, 1917.

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H. E. ELLIS & J. W. WILHELM.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 1, 1916.

Patented June 5, 1917.

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Hitfthltt'l? itHE-L'Wfitlilfi ELF-0.1% AND J (EH15 W. lliTXLIHElMiIi, 0F PALMETTO, FLGEKDA.

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Specification of Letters Patent.

Patented June 55, ilwilt.

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To all whom it may concern:

he it known that we, HARRY E. Bears and Jot-in VVILHELM, citizens of the United States, residing at Palmetto, in the county of Manatee, State of Florida, have invented a new and useful dType-l lfriting Machine; we do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as wiil enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved carriage controlling, spacing and platen roller shifting mechanism, and an object this invention to provide an eiiicient and prac tical mechanism of this kind particularly designed for use in connection with any suit able typewriter at present on market, preferably in connection with the typewriter known as the Royal.

Another object of invention is to provide a feed screw shaft ratchet mechanism for imparting to the carriage an intermittent transverse movement.

.ihnothcr object of the invention is to provide means to actuate a member ofthe carriage from engagement with the feed screw shaft, reby permitting the carriage to return to its initi l position.

.rtnother object of the invention is to provide means to be actuated by amember on the carriage just a trifle before said member of the feed is disengaged from the feed screw shaft, to actuate aratchet mechanism, whereby an intermittent revoluble movement may be imparted to the platen roller,- for spacing the lines.

A further object of the invention is the provision of means for supporting said member from engagement with the feed screw shaft while the carriage is returning to its initial position.

A further object of the invention is to provide means to return said member of the feed mechanism of the carriage back into on gagement with the feed screw shaft when the carriage reaches the initial osition.

lln brief, the broad idea of the invention or object in view, by these foregoing means, is to avoid the manual returning of the carriage and the spacing of the lines vertically, and yet at the same time space the letters transversely, that is, automatically.

In practical fields the details of construction may necessitate alterations falling within the scope of what is claimed.

The invention comprises further features and combination of parts as hereinafter set Ii 01. shown in the drawings and claimed.

In the drawings lligure l is a view in rear elevation, showing the general construction of the typewriter, resembling the structure of the typewriter known as the Royal, showing the back plate broken away, and illustrating the invention as applied.

2 is a view in side elevation of the typewriter constructed in accordance with the invention. v

Fig. 3 is a view in side elevation, showing 1e opposite side of a portion of the machine.

l-Fig. at is a detailview in plan of the weight actuated cable connection between the frame the typewriter and the carriage, for automatically returning the carriage. i

Fig. 5 is a detail view partly in section showing the feed screw shaft for feeding the carriage transversely against the action of the weight controlled means.

Fig. pivoted ti-shaped member or bar having the member or element for engaging said feed screw shaft, for feeding the carriage intermittently transversely. I

Fig. '3' is a cross sectional view through the feed screw shaft, showing the ratchet toothed device at the end thereof, to be engaged by a projection carried by said element of the U-shaped pivoted bar, to disengage said element from the feed mandrel, to permit the carriage to return to its initial position. i

8 is a detail cross sectional View of the feed screw shaft, illustrating parts that are shown in Figs. 6 and 7.

Fig. 9 is a detail view of the rods 10 9 showing their connections with the rod 111, and also showing the side rods or bars 116.

Referring more especially to the accompanying drawings 1- designates a suitable frame, upon suitable guides 2 of which the carriage frame 3 is mounted. Mounted in bearings of th opposite sides of the frame 1 is a feed screw shaft 4, which is provided with threads 5, so pitched,-to move the carriage intermittently and sufilciently, as to insure proper stationbetween the letters, transversely of'the sheet on the platen. Also mounted in bearings of the opposite sides of the frame 1 is a. transverse shaft or rod is a detail perspective view of the 6, on which the arms 7 of the ti-shaped bar 8 are keyed, so as to rock with the rod or shaft 6. One end of this U-shaped bar 8 has a laterally extending arm 9. Mounted in one side of the frame 1 is a stub shaft 10, to the outer end of which an arm 11 is fastened by means of the pin 12, there being a collar 13 between the arm 11 and the side of the frame 1. Upon the inner end of the stub shaft 10 an arm 14 is securedby means of the pin 15. Connected pivotally to the arm .14 as shown at 16 is alink bar 17, which in turn pivotally connects at 18 to the bar 8. Fixed to one reduced end of the feed screw shaft by means of a key 'or feather 19 is a ratchet wheel 20, there being a spring tensioned pawl 21 pivoted at 22 to the side.

of the frame 1 and engaging the ratchet I wheel to prevent retrograde movement of the wheel, as well as of the feed screw shaft 4. Loosely pivoted upon one of the reduced ends of the feed screw shaft 4-is a lever or arm 23, which, where it engages said reduced end, is interposed between the bearing 24 and the hub of the ratchet wheel 20. A pawl 25 is pivoted at 26 to the inner face of the lever or arm 23 and'has its. nose' 27 engaging the teeth 28 of the ratchet wheel. A spring 29'is connected at one end to the tail of the pawl 25 while its other end is connected at 30 to the extreme end portion of the lever or arm 23. thereby holding the nose 27 of said awl 25 in engagement with the teeth of said ratchet. A link bar 31 at one end is pivoted at 32 to the lever or arm 23, and its other end is in turn pivoted at 33 to the arm 11. A coil spring 34 has one end connected to the forward portion of the link bar 17, and its other end connected to the screw '35, there being a nfit 36 on the screw 35 to regulate the tension of the spring 34. Pivotally mounted upon the screw bolts 37 carried by the sides of the carriage 3 are the end arms 38 of, the shaped bar 39. The free end of one of the arms 38 has connected to it a spring 40, which in turn is connected at 41 to an ear of on side of said carriage, and the action of this spring tends to hold the transverse portion ofthe U-shaped bar toward a downward direction. Secured to the transverse portion of the U-shaped bar 39 bymeans of screws 43 is a downwardly extending arm 44, to which an ear 45 of a shoe 46 is secured as at 47. This shoe 46 is semi-circular in cross section, and is provided with threads 48 of sufficient pitch as to coiiperate with the threads of the feed screw shaft, so that when the screw shaft is intermittently rotated, the carriage will be moved transversely and intermittently, so as to equally space the letters in a transverse direction. Une end of the feed screw shaft is provided with an enlargement or collar 49 having upon one face a series of teeth 50. en

its initial position.

was es the carriage reaches its limit moving trans- Versely to the left, a lug 51 on the side of the semi-circular shoe 46 engages the teeth of said collar or enlargement, whereupon the U-shaped bar 39 is tilted upon its pivot 37, thereby'disengaging the shoe 46 from the feed screw shaft. Carried by an arm 52 of the frame 1 of thetypewriter is a pulley 53. Formed upon an arm, which actually carries the pulley 53, is an eye 54, to which a cable or braided cord or the like 55 isconnected. This cable or cord passes about one of the grooves of a double grooved pulley 56, and then over the pulley 53, and back into engagement with the other groove of the pulley 56, and has its other end connected to aneye 57 of one of the sides of the carriage. The casing of the pulley 56 has an eye 58, towhich one end of the cable or cord or the like 60 is connected, and which cable or cord 60 passes over a pulley 61, which'is carried by an arm 62, which in turn is secured by screws 63 to the upper rear bar 64 of theframe 1, and attached to the other end of the cable or cord 60 is a weight or gravity member 65. The carriage when bcing moved intermittently to the left acts against the weight or gravity member 65, which, when the shoe 46 is disengaged from the feed screwshaft, returns the carriage to Secured at 66 to one side of the carriage is a leaf spring 67, the end portion68 of which has a pin or lug 69 extending through an aperture 70 in one side of the carriage justsufiiciently to enter the uppermost of the depressions 71 and 72, so as to hold the shoe 46 in engagement with the feed screw shaft. However, when the projection or'lug 51 engages any one of the teeth 50, thereby overcoming'the action of the spring 40 and overcoming the engagement of the pin 69 in engagement with the depression 71, and raising the bar 39, so as to disengage the shoe 46 fro-m the feed Screw shaft, the pin 69 will enter the other depression 72, thereby holding the shoe out of engagement with said feed screw shaft,

whereby the weight or. gravity member can easily return the carriage to its initial or starting position. Journaled in two arms 74 of one side of the carriage are the reduced ends 75 of a rocking member 76. Movable with the upper reduced end of the rocking member 76 1s a lever 77 having at one end an upwardly extending arm 78, and at the other the forks 79, between which the usual ratchet pawl 80 (which coeperates with theratchet wheel of the platen roller 81, to impart intermittent revoluble movement to said roller for spacing the lines) 'is pivoted upon the pin 83.= Extending laterally from the rocking member 76 is an arni eas es so as to impart an intermittent revoluble movement to the platen roller 81 of the typewriter, so as to space the distance between the lines. As shown in dotted lines in Fig. 3 a shaft 87 is provided, which is designed to carry one of the ribbon drums, (not shown), so that by an intermittent movement of the shaft 87, the drum will move intermittently, whereby the ribbon is moved intermittently in a transverse direction, so that the type bars (not shown) will not strike in the same place. Carried by one end of the feed screw shaft is a toothed member 88, the teeth 89 and the recesses 90 of which have round corners, whereby the roller 91 may readily ride from one recess 00, over one of the teeth into'the next re- 00' cess, and so on, in order to impart an oscillatory movement to the lever 92 against the action of the spring 93. This lever 92 is mounted upon a pivot 94 of one side of the frame 1 of the machine. To a rightangled extending arm 95 of the lever 92, a link 96 is connected, which in turn is connected to the lever 97, which is pivoted upon one end of the shaft 87. Rotatable with the shaft 87 is a ratchet wheel 98, with the teeth of which the pawl 99 cotiperates, so as to impart an intermittent movement to the ratchet wheel 98, and the shaft 87, thereby corres ondingly moving the ribbon (not shown The spring tensioned pawl 100 cooperates with the ratchet Wheel 98, so as to prevent retrogression of the wheel and the shaft 87. After the carriage reaches its initial or starting position, the upper edge of the ear 45 of the shoe 46 cams against the inclined surface of the lug 101 carried by the plate 102, which is secured to the type writer frame 1 as shown at 103, thereby overcoming the engagement of the pin 69 and the depression 72, whereby the shoe 46 is forced back into en agement with the feed screw shaft, the spring 40 acting in this regard. It is to be understood that any form or set of keys may be employed in connection with this mechanism, for rocking the bar 8, to actuate the carriage controlling, spacing and latemshifting mechanism and the type ars, which may be any conventional form or construction. However, for illustrative purposes, a set of keys 105 is shown. The shank of each key consists of two sections 106 and 107 ivotally united at 108. To the lower end 0 each section 107 a rod 109 is connected. Each rod 109 is provided with an enlarged portion having an-elongated slot 110, through which the rod 111 extends, in the manner shown, the other end portions of the rods 109, that is, beyond the slots 110, are connected to the transverse portion of.

the bar 8. The frame 1 of the typewriter is provided with a stationary portion 112, the projections 113 of which have connected to them links or rods 114:, which in turn are connected to the sections 107 of the shanks of the keys. The rod 111 is carried in the ears 115 of the side rods or bars 116, which are in turn connected to the sections107 of the shank of the shift keys 117. These side rods or bars 116 are in turn adapted to be connected to the bed 118 of the type bars, so as to shift the entire bed when writing capital letters. The rods or bars 116 are supported in the guide 119 of the stationary part 112. For illustrative purposes the bed is shown as supporting one type bar 120, which in turn is connected by the parts 121 to one of the sections 107 of one of the shanks of one of the keys 105. It is to be seen that when any one of the keys is depressed, the transverse spacing of letters and the shifting of the platen for spacing the lines, and the movin'giof the carriage, are

not only accomplished, but the actuation of the type bars is accomplished. A rod 123 is connected to the arm 9 of one of the arms 7 of the bar 8, and is in turn connected to one of the arms of the bell crank levers 124, which are pivoted, and carry the space bar 125. By depressing the bar 125, the rod 123 is actuated thereby actuating the bar 8. which in turn through the arms 11 and 17 and the ratchet mechanism will feed the carriage transversely.

The invention having been set forth what is claimed as new and useful is 1; In a typewriter, the combination of a frame having a carriage mounted in guides of the frame to move transversely and a screw intermittently mounted in bearings of the frame, of a memberhaving a shoe to engage the screw and being carried by the carriage, and means actuated by the keys of the typewriter for imparting an insaid meme;

said member out of engagement with said screw while the carriage is returning to its initial or starting position, and means for returning said member into engagement with the screw substantially when the carria e reaches its initial or starting position, an means for returning the carriage to its initial or starting position, said means for disengaging the member from the screw comprising a toothed member at one end of the screw, and a lug carried by said member to engage the toothed member whereby the member with the lug is disengaged from the screw.

2. In a carriage feed mechanism for typewriters, a frame, a carriage mounted infeed screw.

3. In a carriage feed mechanism for typewriters, a frame, a carriage mounted in guides thereof, a bar extending longitudinally of the carriage and having transverse arms at its ends pivoted at the opposite ends of said carriage, said bar having a downwardly extending arm, a feed screw extending transversely of the frame and mounted in bearings thereof and provided with a collar at one end having one face provided with ratchet teeth, a shoe carried by the arm of said bar and arching the-feed screw and having threads to engage the threads of the screw, whereby as the screw is rotated, the carriage is fed in one-direction, said shoe having a projection to engage one of the teeth of the collar, whereby the bar is tilted upwardly and the shoe is disengaged from the screw.

4. In a carriage feed mechanism for typewriters, a frame, a carriage mounted in guides thereof, a bar extending longitudinally of the carriage and having transverse arms at its ends pivoted at the opposite ends of said carriage, said bar having a downwardly extending arm, a feed screw extending transversely of the frame and mounted in bearings thereof and provided with a collar at oneend having oneface provided with ratchet teeth,a shoe carried by the arm of said bar and arching the feed-screw and having threads to engage the threads I of the screw, whereby as the screw is 'ro tated, the carriage is fed in one direction, said screw having a projection to engage one of the teeth of the collar, whereby the bar is tilted upwardly and the shoe is disengaged "from the screw, spring means connected to one of the end arms of said bar and to the carriage, and against the action of which the shoe is disengaged from the screw, means to engage one of the end arms of the bar to hold the shoe disengaged from the screw, said shoe having an ear, and means at one end of the frame to be engaged by said Year, to overcome said holding means, whereby the spring means will actuate said bar and return the shoe in engagement'with the screw. I

5. In a carriage feed mechanism for typewriters, a frame, a carriage mounted guides thereof, an intermittent feed mounted in bearings of said frame and hav ing a collar at one end provided with ratchet teeth on one face, means to impart an intermittent motion to said screw, a bar having end arms pivoted on the carriage, spring means connected to 'one'of the end arms, said bar having a downwardiy extending arm provided with a shoe archin and engaging the threads of the screw, said shoe having means to engage one of the teeth of the collar to raise the shoe and the bar against the action of the spring means, one of said end arms having apertures, and a leaf spring provided with a lug to engage one of the apertures to hold the bar raised against the action of thesprin means, with the shoe out of engagement wit the screw.

6. In a carriage feed mechanism for t pewriters, a frame, a carriage mounte in guides thereof, an intermittent feed screw mounted in bearings of said frame and having a collarat one end provided with ratchet teeth on one face, means to impart an intermittent motion to said screw, a bar having end arms pivoted on the carriage, spring means connected to one of the end arms, said bar having a downwardly extending arm provided with a shoe arching and engaging the threads of the screw, said shoe having means to engage one of the teeth of the collar to raise the shoe and the bar against the action of the spring means, one of the said end arms having apertures, and a leaf spring provided with a In to engage one of the apertures to hold the bar raised against the action of the spring means, with the shoe out of engagement with the screw, means to coiiperate with a part of the shoe to overcome the tension of the leaf spring, whereby said spring means will actuate said bar and return the shoe in enga ement with the screw, whereby the lug 0 said leaf spring may engage the other aperture and hold the shoe upon the screw.

7 In a carriage feed mechanism for typewriters, a frame, an intermittent feed screw mounted in bearings of said frame, means to impart an intermittent motion to the screw, a carriage mounted in guides of said frame, a bar having end arms pivoted on the carriage and provided with a device to,

device from the screw, spring means against the action of which said bar is tilted, one of the end arms of said bar having a pair of apertures, a leaf spring having a lug to engage one of the apertures to hold the device out of engagement with the screw against the action of the spring means, and a member to cooperate with said device to overcome said leaf spring and allow the spring means to actuate said bar whereby said lug will engage the other aperture and two subscribing witnesses.

' HARRY ELLWOOD ELLIS.

JOHN W. WILHELM.

Witnesses:

R. E. BRADLEY, T. J. MASON.