US410627A - Type-writing machine - Google Patents

Description

2 Sheets-Sheet 1.

Patented Sept. 10, 1889.

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D. ALLEN', Jr. TYPE WRITING MACHINE.

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D. ALLEN, Jr. TIPI: WRITING MACHINE.

No. 410,627. Patented Sept. 10, 1889.

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UNITED STATES PATENT OFFICE.

DANIEL ALLEN,. JR., OF BOSTON, MASSACHUSETTS, ASSIGN OR TO THE TYPE- VRITER IMPROVEMENT COMPANY, OF PORTLAND, MAINE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 410,627, dated September 10, 1889.

Application led November 21, 1887. Serial No. 255,693. (No model.)

To all whom, it may concern:

Be it known that I, DANIEL ALLEN, J r., of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Type-IVriting Machines, of which the following is a specilication.

This invention relates to a type-Writin g machine having printing characters or types arto ranged in a segmental series on a plate or sevment which is pivoted to a sliding carriage, and is enabled by the sliding movement of the carriage and by its own movement in either direction on its pivot to present either of its characters or types to a printing-lever adapted to press the type upon a sheet of paper held by suitable devices forming a part of the machine and to print upon said sheet, as shown in Letters Patent to J. Becker, Oc-

tober 12, 1886, No. 350,717.

The invention has for its object to enable the upper and lower case characters to be printed by the same type-carrying segment; and to this end it consists in a type-carrying segment having two concentric series of characters, one comprising the upper and the other the lower case, the said segment being movable, so that either series of characters may be brought into position for one ofits 3o members to be act-ed upon by the printinglever.

The invent-ion also consists in certain details and minor improvements, all of which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure l represents a top view of a type-writing machine provided with my improvements. Fig. 2 represents a section on line 0c x, Fig. l, showing the typecarrying segment in position for printing with the lower-case characters. Fig. 3 represents a similar section showing said segment in position to print with the upper-case characters. Fig. 4 represents a view of the type-carrying segment inverted. Fig. 5 represents a section on line y y, Fig. l.

The same letters ot reference indicate the same parts in all the figures.

In the drawings, c represents the supporting-base, to which is affixed a frame supporting a iixed horizontal ratchet-bar l1, having the ratchet-teeth b. The type-carrying segment c is mounted in a carriage 3 4, having perforated ears d d, through which the ratchet-bar Z) passes, said frame being adapted to slide upon the said bar. To an ear e on the carriage is pivoted a lever f, hereinafter called the printing-lever, which is adapted to oscillate in a vertical plane and has a laterally'- projecting arm g and a pin or stud 7l. 6o

c' represents a rocking-lever, the main portion of which is parallel with the ratchet-bar l), its ends being bent at right angles and formed with eyes embracing said ratchet-bar and enabling the lever 'i to rock or oscillate 65 on the ratchetbar. The rocking lever t' passes between the arm g and pin h of the printing-lever f, and when oscillated also oscillates the printing-lever, a dog j, pivoted to the printing-lever, being caused to engage a 7o tooth of the ratchet-bar by each depression of the rocking lever c', and thus nlove the carriage one step in its progressive movement. At the same time a pin or plunger f on the printing-lever acts on the flexible type- 7 5 sheet c', attached to the segment c, and presses a character thereof upon the paper sheet which is placed on the machine to receive impressions from the types. The rocking lever and printing-lever are normally supported in 8o a raised position by a spring k, and are depressed against the stress of said spring by the downward pressure of the operators hand on the rocking lever. The type-carrying segment c is pivoted at m to the carriage, and has a series of orifices n concentric with the pivot m. The flexible rubber type sheet or plate c is attached to the segment c and projects from the segmental edge thereof, and is provided with printing-characters, which are 9c also concentric with the pivot m, and are arranged to be depressed over the paper-supporting bed or bar m2 by the plunger f on the printing-lever. The concentrically-arranged holes a in the type-carrying segment co-operate with a pin p on the printing-lever, said series of holes constituting what is termed in said Becker patent a centering device, whereby each printing-character is properly centered or placed under theplunger of the roo printing-lever.

q represents a rubber-coated paper-feeding ing-lever.

of the machine, and is provided with a springy t, whereby it is.A normally turned, so as to press the teeth ofthe comb-shaped plate upon the paper passing over the roller q, and with a handle u, whereby said plate may` be raised to release the paper. i i

'b represents an index-plate connected tothe carriage and provided with arepresentation of the characters of the type-segment arranged concentrically with the pivot rm' of ,said segment and co-operating with. an operating-'lever w, attached to said segment.

f The description thus far given is mainly applicable to the machine shown in the abovenamed Becker patent, and its general operation is substantially the same as that described in said patent, the type-segmentbein'g turned by theoperator to bring any desired'character under the plunger of the printing-lever,- and said character is pressed upon the paper by a depression of the printing-lever,v which depression also moves the carriage along one step and centers the type for the printing-characters, so that the machine Vhas been capable of printing only one kind of letters-viz., upper-case. In carrying out my inventionI provide the type-carrying segment with two concentric seriesy of printing-characters ,c z', (the former including the upper and the latter the lower case letters,) and make said segment movable toward and from either ,series can be brought under the print- Tothis end I make the carriage in two " sections 3 and 4, the section 3 having the' ears d d, which slide on the ratchet-bar 5 and the ear e, to which the printing-lever is pivoted, while the section 4 is adapted` to move on the section 3 toward and from the ratchet-bar and supports the type-'carrying segmento and the index-plate o. The section 4 may be secured to the section 3 in any desired manner, so `as to permit the described independent movement of the type-carrying segment. lI have here shown t-he section 3 provided with two parallel dovetail extensions, serving as guides on which the section 4 slides, the latter having dovetail grooves 5 5, Fig. l, which receive said guides. It is obvious, however, that various other devices may be adopted to engage the two sections and permit the independent movement of the section 4. rlhe section 4 is provided with downwardly-projecting .notched or forked lugs c2 c2, adapted4 to Aengagea b ar d', which isparallel with the ratchet-barb, butis'supported on guidese e', on'which it is adapted to slide laterally. Said bar isY connected `by rods g g with arms 7L h', attached to a rockshaftrl, which is journaled infiXedl bearings iu the frame of the machine. A spring c, secured at one end to said rock-shaft and bearing at the other end on the frame, normally holds the rock-shaft in the position shown in Fig. 2, said rock-shaft acting through the arms h', rods g', and `bar d to hold the .type-carryin g segment with the series of lowercase letters in operative relation to the plunger of the type-lever, so that the normal operation ofthe machine will be to print the lower-case letters. The rock-shaft t" has a lever-arm m', which, when presseddownwardly by the operator, turns the rock-shaftto the position shown in`Fig. 3, and causes it', through the arms h and rods g', to force the bar d and the section 4 of the carriage employed therewith'backwardly until the series of upper-case letters are in operative relation to the printing-lever, so that the machine will print upper-case letters so long as the rock-shaft is held in the. position last described. vis provided with two pins p, one arranged to Ico-operate with the holes/mot' the centering device when the type-carrying segment is in .one position, and the other when said seg-U `ment is in the other position, as shown in- Figs. 2 and 3.Y g

printing-plunger f I-Ieretofore the` typef carrying segment has had but one series ofl From the foregoing it will be seen that Vwhen the operator desires to print an uppercase letter he turns the rock-shaft t" against lthe pressure of the spring lq', and-thus moves 3the type-carrying segmentback andpresents lits upper-case letters to thei printing-lever.

When the rock-shaft is released,'its sprin g lo',

through the described' devices, returns the Itype-carryingsegment to position to print lower-case letters. A the ratchet-bar and printing-lever, sothat The machine is to be providedwith suitarectionsin or additions ltomatter already printed arerequired. I have also-shown the teeth of the comb-shapedplate provided with `numerals for the same purpose, said numerals also (3o-operating withy the combined rocking lever and gage, or with any other gage that may be applied to the machine. I provide the carriage with pointers p p, the points of which register with one edge of the ixed bar o r bed which supports the paper under the printing-lever, as shown in Fig. Y, 1'. These pointers-enable the operato;` to so replace a IOO IIC

IIS

sheet that has been already printed on that c l1aract ;rs added to a line thereonshallbe in exact alignment with the `other characters Ofic said line, the ends of the pointersregistering with the bottom of the printed line when the' latter is in position to be in line with characters subsequently printed.

The operator in manipulating the machine operates the shifting` mechanism, the spacelever, and rocking lever t' with the fingers of one hand, while he moves the type-segment with the other hand, in this way being enabled to keep the machine in constant and rapid motion without stopping to adj ust for printing different characters.

I claiml. In a type-writer, the combination, with the paper support or guide, the longitudinal guides, the carriage movable thereon, and the feeding mechanism for automatically feeding the carriage forward when a type has been depressed, of the movable type-carrying segment bearing' concentric rows of type mount ed on said carriage in iixed guides at right angles to the line of movement of the carriage and a shifting-bar mounted on iXed guides and engaging said segment to shift the same, whereby the types in said concentric rows may be brought to the propel' printing-point, substantially as described.

2. In a type-writing machine, the combination, with a paper support or guide, a carriage mounted on longitudinal guides, and a printing-lever thereon, of a type-carrying segment provided with concentric series of characters mounted on an axis or pivot which is movable in iiXed guides on and at right angles to the line of movement ofthe carriage, and a shifting-bar mounted in fixed guides and engaging said pivot, whereby the types in said concentric series may be brought to the proper printing-point, substantially as described.

3. In a type-writing machine, Jthe combination of a carriage mounted on longitudinal guides and made in two parts or sections, one of which is independently movable in fixed guides at right angles with the usual movement of the carriage, a type-carrying segment having a plurality of series of printingcharacters pivoted to the said independentlymovable section, a printing-lever pivoted to the other section of the carriage and engaging said printi11g-characters to print the same, and a shifting-bar mounted in fixed guides and engaging said independently-movable section for moving the section to bring either series of characters into operative relation with the printing-lever, as set forth.

4. In a type-writing machine, the combination of a carriage made in two parts or sections, one of which is independently movable at right angles with the usual movement of the carriage, a type-carrying segment having a plurality of series of printing-characters pivoted to 6o the said independently movable section, a printing-lever pivoted to the other section of the carriage, a laterally-sliding bar, as d', arranged to be engaged by slotted lugs with the independently movable section of the carriage, and means, substantially as described, for moving said rod laterally, and with it the type-carrying segment and the section of the carriage supporting it, as set forth.

5. In a type-writing machine, the combina- 7o tion of a carriage made in two parts or sections, one of which is independently movable at right angles with the usual movement of the carriage, a type-carrying segment having a plurality of series of printing-characters pivoted to the said independently-movable section, a printing-lever pivoted t-o the other section of the carriage, and a laterally-sliding bar, as d, arranged to be engaged by slotted lugs on the independently-movable section, a 8o spring-controlled rock-shaft journaled in xed bearings, and connections between said rockshaft and rod, whereby the latter is moved by the rotation of the former, as set forth.

6. In a type-writer, the combination, with the longitudinally-movable carriage, the typesegment carrying concentric rows of printing-characters thereon and movable in ixed bearings in a direction at right angles to the line of movement of the carriage, and the 9o printing-lever, of centering-pins co-operating with the type-segment to center the type in any of said concentric rows, substantially as described.

In testimony whereof I have signed my name 9 5 to this specification, in the presence of two subscribing witnesses, this 18th day of November, 1887.

DANIEL ALLEN, JR.

Vitnesses:

C. F. BROWN, W. C. RAMsAY.

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