US735247A - Type-bar for type-writers. - Google Patents

Description

No. 735,247. PATENTED AUG. 4, 1903.

J. J. GREEN. TYPE BAR FOR TYPE WRITERS.

APPLICATION FILED SEPT. 12, 1902.

N0 MODEL.

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I UNITED STATES Patented August 4, 1903.

PATENT OFFICE.

JOHN-JAY GREEN, or soonron, NEW JERSEY.

TYPE-BAR FOER'TYPE-WRITER'S.

SPECIFICATION forming part of Letters Patent No. 735,247, dated August 4, .1903.

Application filed September-12, 1902. Serial No. 123,076. (No model.)

To all whom it pmy concern:

Be it known that 1, JOHN JAY GREEN, a citizen of the United States, residing in Boonton,

in the county of Morris and State of New J ersey, have invented certain new and useful Improvements in Type-Bars for Type-\Vriters, of which the following is a specification.

This invention relates to the manufacture of type-bars designed for use in machines of the'type-writer class, and has for its object the provision of a form and construction of such accessories especially directed to the facilitating of their manufacture and the economizing of the material and steps involved therein.

A further important feature of the present invention relates to the provision of a form for such type-bars whereby the pressure or blow of printing effected by the operation of the usual key-lever or similar device is most directly applied with a minimum of side and other objectionable strain of the parts. Moreover, in my improved type-bar those types thereon which are used less frequently are disposed on opposite sides of the type borne by the bar and which is in most constant use during the operation of the typewriting machine.

In carrying my invention into practice I make the type-bar itself and the portion to j which the types or impressors are directly structure that the blow will be directly apafiixed of sheet metal and preferably in one integral piece, thus enabling the article to be struck up or fashioned by suitable die operations. f

In the present application of the invention I have shown a type-bar adapted to carry three separate types. Under such circumstancesthe type used most frequently-for instance, a lower-case type-will be centrally disposed with respect to the other two while these '1 atter are on opposite sides of the former. The force transmitted to .make an impression by the actuated type-bar is so applied in consequence of the form given to the integral plied in the line of the printing movementthat is, centrally with respect to the printing-type. When either one or the other of the types disposed at the sides of the centrally-located type operate to make an impression, the result of the symmetrical arrangement adopted is to render the applied force of equal value in both instances.

In the drawings accompanying the present specification there is set forth in a conventional way suflicient of the elements of aty-pewriting machine to enable my invention and the use of the type-bar embodying it to be readily understood.

In the drawings,Figure 1 is a sectional View, parts being shown in elevation,and illustrates a connected train from the type-bar to the actuating key-lever, together with various means by which the different parts of the train are mounted and supported. Fig. 2 is an elcvational view showing parts of the train set forth in Fig. 1 removed from their supporting means in such figure, the full lines illustrating the type-bar in its. normal or inoperative position, while in dotted lines, the bar is set forth in its operative or printing position and in which itcooperates with the platen of the machines-Fig. 3 is a per= spective view of my improved type-bar. Fig. 4 is a longitudinal edge View thereof, and Fig. 5 is a view looking along the bar from one end thereof.

Similar characters of reference designate corresponding parts in all the figures.

The type-bar in whose construction the present invention is embodied is set forth in the drawings as of that class in which the bars are pivotally supported intermediate their ends,at one of which latter the types are carried, while at the opposite end connection is made for effecting the operation of the bar.

In making the present type-bar whatever he the class of machines to which it be applied I will preferably form the same of sheet metal and by stamping or other proper means shape the same to form to adapt it to properly operate when mounted in the machine. In this instance the type-bar (designated in a general way by B) is provided intermediate its ends with a suitable opening I), through which a pivot pin or wire may be inserted, while adjacent to such opening the the type, such as 4,

. ment of type-barhas an enlarged hub portion 1), the I a such type-carrying part is designated. by 2,

and the same, somewhat elongated in form, is bent at an angle to the main body 2 of the bar. 'lheYconnecting-section between such part 2 and the main body formed by bending the stock is. designated by 3, and it will be noticed,parti cularly in Figs. 3 and 5,that"such section 3 connects with the part 2 at points substantially midway between the ends of the latter, the part 2 therefore extending on opposite sides of the connecting-section. Such being the relation, the force'inherent in the bar moving in the plane of its body portion is exerted upon the arrest of thebar (occurring during the instant of printing) as asubstantially centrallyapplied pressure relatively to the ends of the part 2. Substantially midway between the ends of the part 2 most frequently used (ordinarily a lower-case character) is afiixed. Substantially equidistantly from such type at are located types 4 t", being those less frequently used in the use of the machinesuch,

for instance, as an upper-case character and a figure. In order to convenientlyattach the type-heads in place, each may be provided with a recess, which is fitted over the typecarrying edge of the bar.

Although the bar B is shown connected for operation toafulcrumed key-lever 5 by means of a connecting-rod 6 in the form of a loop (through which the bar extends) and a transmitting angle-lever 7, connected by a link 8 with the lower end of the type-bar, it is not contemplated that the present invention shall be limited in its application to the employsuch a train of transmitting connections, since these features, together with the supportin -casing 9, cushioned type-bar rest 10, elevating-springll, and slotted fulcrumsupporting segments 12 and 13, are shown by way of illustrating an adaptation of the present type-bar to a type-writing machine.

The usual roller-platen is indicated in a general way and designated by 14, the position of the parts during printing being outlined in part in-Fig. 2.

It will of course be understood that the body of the type-bar and the integral portion to which the types are directly affixed will be suitably bent or shaped to cause the proper cooperation of eachrespective bar with the platen, and in general it may be stated that the amount to which each bar is bent will depend upon the location of that bar with respect to the printing-point. I

By making the type-bar of sheet metal and bending angularly thereto that portion which directly supports the types and, furthermore,

by giving to this latter portion and to the types thereon'a symmetrical arrangement I am enabled to produce these components of a type-writing machine at comparatively small cost and to obtain during'the printing operation a character of blow of the printingtypes best calculatedto make even and fair impressions.

Having described my invention, I claim- 1. A type-bar made from a single piece of sheet metal and whose'end is bent angularly to the body of the bar to form a type-carrying edge extending on both sides of the connecting part between. such edge and the body of the bar, combined with type-heads having recesses into which said type-carrying edge is fitted.

2. A type-bar madefrom a single piece of sheet metal and whose end is bent angularly to the-body of the bar to form a type-carrying edge extending on both sides of the connecting part between such edge and the body of the bar, combined with type-heads having recesses into which said type-carrying edge is fitted, said type-heads being located on opposite sides of said connecting part.

I 3. A type-bar made from a single piece of sheet metal and whose end is bent an gularly to the body of the bar to ,form a type-carrying edge extending on both sides of the connecting part between such edge and the body of the bar, combined with a type-head having a recess into which said type-carrying edge is fitted, the type-head stantially midway between the ends of such type-carrying edge, and type-heads similarly being located subsecured to the type-carrying edge on opposite sides of the central type-head.

4. A type-bar made of sheet metal and bent intermediate its ends to bring the type-carrying end thereof to the printing-point upon the operation of the type-bar, said type-bar comprising a body portion and an angularly disposed type-carrying portion'integral with said body portion and extending on both sides of the connecting part between such body portion and the angularly-disposed portion, combined with types aflixed to the said type-carrying portion. I

5. A type-bar made of sheet metal and bent intermediate its end to bring the type-carrying portion thereof to the printing-point upon the operation of the type-bar, comprising a body portion and an angularly disposed type-carrying portion integral with said body portion and extend-ing on" both sides of the connecting part between said body portion and the angularly-disposed portion, combined with types attached to said said type-bar.

type-carrying portion on opposite sides of said connecting part.

6. A type-bar made of sheet metal and bent intermediate its ends to bring the type-carrying end thereof to the printing-point upon the operation of the type-bar, said type-bar and a type on each side thereof all affixed to comprising a body portion and an angularlysaid type-catrrying;v portion. disposed type-carrying portion integral with JOHN JAY GREEN said body portion and extending on both sides. of the connecting part between such Witnesses; body portion and the angularly-disposed por- FRED. J. DOLE, tion, combined with a centrally-located type i JOHN O. SEIFERT.

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