US882042A - Type-writing machine. - Google Patents

Description

No. 882,042. PATENTED MAR. 17, 1908.

F. A. YOUNG. TYPE WRITING MACHINE.

APPLICATION FILED JULY 22. 1904.

INVENTEIFRE WITNEEEE5= is; L

unrrnn FRANK A. YOUNG, OF SYRACUSE, NEW YORK, ASSIGNOR TO THE MONARCH TYPEWRITER COMPANY, OF SYRACUSE, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITDTG- MACHINE Specification or Letters I-atent.

Patented ldarch 1'3, 1805.

b To all whom it may concern:

Be it known that I, FRANK A. YOUNG, citizen of the United States, and resident of Syracuse, in the county of Onondaga and State of New York, have invented certain new anduseful Improvements in Type- Writing Machines, of which the following is a specification. v

This invention relates to typewriting machines and more particularly to the type actuating mechanism of such machines.

- It sometimes occurs in typewriting machines of the type bar class that the types-are caused to impin e against the ribbon or paper with such 'orce as to out or puncture them, besides indenting the platen. These results are the more pronounced in the cas of the t es of small area of printing surface, such as t e period and comma.

The main object of my invention is to provide a construction which will obviate these and similar defects.

To this and other ends which will subsequently appear, my invention consists in ,certain' features of construction, arrange- .of the stop and stop-plate or bar and its supplorts. I

- e base 1 of the machine supports corner posts 2 which in turn sustain a top plate 3. he top plate supports a carriage (not shown) of any desired construction, said carriage being provided with a platen di ammatically illustrated.

he reference numeral 5 indicates one of a series ofkey levers each having a key-cap or button 6 and a restoring spring 7, said key levers being. pivoted on a transverse fulcrum rod 8 in the rear of the base of the machine. Pivoted at 9 to each key lever is a subdever ii) formed at its lower end with a slot 1 1 which cooperates with a fixed fulcrum rod 12 extending from side to side 01 the machine beneath the key levers. The upper end of each-sublever 10 is pivotally connected at 13 to the rear end of an actuating link I l-i, which at its forward end is pivoted at15 to a type bar 16.

The typebar, as shown herein, is pivotally mounted upon a continuous fulcrum wire 1.7,"whieh is seated in a groove in the concave face of the upright type-bar support or seg Inent 18, the latter being slotted transversely and radially as at 19 for the accommodation of the pivot ends or hub's of the t *pe bars. But,,of course, the type bars may be otherwise pivotally mounted, as is common in.

this art. The type bars are supported at their type ends upon a segmental rest or pad 20, which is sustained by several horizontal arms, one of which, 21, is shown, extending forwardly from the type bar segment 19.

For the purposes of this invention it is immaterial whether the segment or support 19 be fixedly or movably connected with its brackets or guides of which only the righthand one, 22, is illustrated in the drawing.

Secured to the top of the base at each side of the machine and slightly in the rear of the segment, is a vertical post or standard 23. A horizontally disposed comb-plate is suitably secured, as by headed screws 25, to the top of the posts 23, said comb-plate extending longitu inally of and behind the type bar segment, and being formed with rearwarclly projecting teeth or pins 26, which serve to guide the sub-levers 10. Secured above the comb-plate upon the osts 23 is a stop holder preferably made in t e form of a U-shaped stop bar or late 27. The stop-plate comprises a cross ar 28 andside bars or arms 29 extending forwardl 'irorn the ends of the cross bar and provi ed with perforations through which pass the screws 25, the latter securing the stop-plate in position in the machine. The rear portion of the cross-bar 28 is bent upward vertically at right angles to the forward part of the cross-bar and forms a lip 30 extendin transversely of the sub-levers and in rear of the same somewhat below their tops. The li or flange 30 is so disposed that the limit of t 1e rearward travel or throw of said sub-lever is somewhat forward of it, as indicated by the dotted line position of said sub-lever in Fig. l.

The type bar shown in the drawing is the one commonly known as the period bar; that is, it is the bar or one of the bars provided with a period type. In the drawing the parts are shown in dotted lines as they appear when in position to print the period. Behind the sub-lever connected with this period bar, the vertical lip 30 is tapped to llD - The screw it is to be understood, of course, t

- ,.w-ith a binding 2 e ay-:

receive a stop-screw 31, which is provided nut 32, and is so situated that when the screw is properly adjusted the rear edge of the sub-lever 10 willcontact with its inner end just before the "type' reaches the a er. l f the finger key6 be adequately depressed, the ty e bar 16, through the sub-lever l0 and 14, is actuated'towards the printing point, as is well understood.

tactv between the sub-lever and the limiting screw 31 occurs, the parts willrbe in about.

the position indicated by the dotted lines in Fig. 1. The type bar, it Will be noted, is still some distance from the printin point (as illustrated by the forwarddotted fines, showing the complete bar) when the contact of the sub-lever with itssto 31 takes place. The momentum tha'thas been acquired by the bar during its movement to this, point, however, impels it to the printing oint, (as indicated by thefragmenta v dotte line 0- si'tion of the type end of the bar). This r- .ther or additional movement of the bar is permitted by the elasticity or spring of the parts com rised in the type actuating mechanism an the looseness of their connections. stop31 may be adjusted'to stop or limit thethrow of the subl ever in such positiorifthat'the type bar-,When actuated by a touch on the finger-key ofsubstantially the same character as is applied'to the other keys of the keyboard, will contact withthe paper on the platenwithsuch force as to cause the period'to printuniformly with the remainder of the types. .By this construction I have found in practice that the period. and like sharp types may beprinted l1 htly and without puncturing the paper, which is a desideratum..

While I have illustrated the stop in connection with the type actionof the eriod bar, at it may 1 be employed equally well in connection with bar carrying type the comma typebar; with any other type or types ofsmall area; and, if desirable, with the machine; It is further to be understood that while I have illustrated my invention as applied to a machme having the general characteristics of the Monarch typewritpr, the said invention'may beapplied to other forms of writing machines.

Various changes of form, construction and combination of the parts hereinbefore described may be effected within the scope of the invention. v I l 1 What I claim as new'and desire to secure by Letters Patent, is a 1. In a typewriting machine, the combination of a type bar support, a typebar mount- Y ed thereon, a key lever, a sub ev'er movable independently of said type bar support and connected with said type bar and with said key lever, and means for limiting the throw When the con-.

any or all the type barsin all the recited parts of the at all times positively conof the type of said sub' lea er, type action being heated, together, and movement mitted by the spring or give 0 the parts and the looseness in their connections.

v 2. In a typewriting machine, the combination of a type bar support, a type bar mounted thereon, a key lever, a subever movable independently of said typ'ebar support and connected with said type bar and. with said key ever, and a stop for positively limitin the brow of said sub lever, all. the recites tion being at all times positively'connected. together and movement of the type bar after the sub-lever is sto ped being permitted by the spring or give 0 theparts and the loose ness in their connections. v

4; In a typewriting machine, the combination of a type bar, a key lever, a vertically disposed sub-lever connected with said type bar and said key lever, and a stop arranged behind said sub-lever and ada ted to limit the rearward travel of said subever, all the said parts of the type action being at all times positively connected together, ment of the type bar after'the sto ped being permitted. by thes of t e parts and the looseness in t tions."-

sub-lever is ring or glve e1r connection of a type bar, a key lever, a vertically disposed sub-lever connected with said ty e bar and said key lever, and anadjustab e stop arranged behin'd said sub-lever and adapted to vary travel of said sub-lever, all the said parts of the type action being at all times positively bar after the sub-lever is stop ed being per mitted by the spring or give ol the parts and the looseness in their connections.

6; In a typewriting machine, the combination of a type bar support, a ty e bar mount ed thereon, a key lever, a sub-lever movable independently of said type bar connected with said type bar and with said key lever, a stop support, and a sto mounted on said support and adapted to imit the throw of said sub-lever, all the recited parts of the type action being at all times positively connected together and movement of bar after the sub-lever is stopped beingrper parts of the type action being at all, timesbe varied, all the recited parts of the type acthe limit of the rearward support andof said type bar support and I l and move-v 5,. Ina typewriting machine, the combinaconnected together, and movement of the type the type bar after the sub-lever is stopped being permitted by the spring or give of the parts and the looseness in their connections.

7. In a typewriting machine, the combination of a type bar, a key lever, a sub-lever connected-with said type-bar and said key lever, a stop su port and a stop ad'ustably mounted on sai support and adapte to vary the limit of travel of said sub-lever, all the said parts of the type action being at all times positively connected together, and movement of the type bar after the sub-lever is stopped being permitted by the spring or give of the parts and the looseness in their connections.

8. In a typewriting machine, the combination of a type bar, a key lever, a sub-lever connected with said type bar and said key lever, posts secured upon a fixed part of the machine, a U-shaped stop-bar mounted upon said posts, and a screw stop mounted upon said stop-bar in the path of travel of said sub-lever.

9. In a typewriting machine, the combination of a type bar, a key lever, a sub-lever connected with said type bar and said key lever, relatively fixed supports, a guide comb mounted upon said supports, a stop support also mounted upon said supports, and a sto mounted u on said stop support in the patli of travel 0 said sub-lever.

10. In a typewriting machine, the combination of a type bar, a key lever, a sublever connected with said type bar and said key lever, relatively fixed supports, a guide comb mounted upon said supports, a U- shaped stop bar having a vertical lip also mounted upon said supports, and a screwstop adjustably mounted in the vertical lip of said U-shaped stop bar.

11. In a typewritmg machine, the combination of a type bar, a key lever, a sublever connected with said type bar and with said key lever, chine, a stop holder on said support, and a stop on said holder, said sto being adapted to contact with said subever when the latter is operated, all the said partsof the type action being at all times positively connected together, and movement of the type bar after the sub-lever is stop ed being permitted by the spring or give 0 the parts and the-looseness in their connections.

12. In a typewriting machine, the combination of a type bar, a key lever, a sublever connected with said type bar and with said key lever, a support fixed to the machine, a bar provided with an arm secured to said support, andan adjustable stop on said holder, said stop being adapted to contact with said sub-lever when the latter is operated, all the said parts of the type action being at all times positively connected together, and movement of the type bar after the sub-lever is sto ped being permitted by the spring or give 0 the parts and the looseness 1n their connections.

Signed at Syracuse, in the county of Onondaga and State of New York, this 19th day of July A. D. 1904.

FRANK A. YOUNG.

a support fixed to the ma-

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