US761811A

US761811A - Type-writer.

Info

Publication number: US761811A
Application number: US145712A
Authority: US
Inventors: Neal Larkin Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-05-10
Filing date: 1903-03-02
Publication date: 1904-06-07
Anticipated expiration: 1921-06-07

Description

PAT'ENTED JUNE 7, 1904.

' N; L. ANDERSON;

TYPE WRITER.

APPLIOATION FILED MAR. 2, 1903.

N0 MODEL.

I thereto.

"UNITED STATES Patented June 7, 1904.

PATENT OFFIC TYPE-WRITER.

SPECIFICATION forming part of Letters Patent No. 761,811, dated June '7, 1904:.

ori ma application filed m 10, 1902,'Se1'ial No- 106,802.

T0 all whom, it may concern:

Be it known that I, NEAL LARKIN ANDER- SON, a citizen of the United States, residing at and whose post-office address is 300 VVashington street, in thecity of Montgomery, county of Montgomery, State of Alabama, have invented certain new and useful Improvements in Type-VVriters; and I do herebydeclare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in the art to which it appertains to make'andluse the same.

My invention relates to certain automatic line-spacing and paragraphing mechanism for typewriters, described in my application filed May .10, 1902, Serial No. 106,802, for improvements in type-writers, of. which the present application is a division.

The invention is illustrated in the accompanying drawings, in-which- Figure 1 is a view of the left-hand end of a type-writer, showing the automatic line-spacing and paragraphing mechanism applied Fig. 2 is a front elevation of the same. Fig. 3 is aview corresponding to Fig. 1 with the line-spacing mechanism thrown out of operation. Fig. 1 is a front elevation corresponding to Fig. 2, showing the opera tion of the line-spacing and paragraphing mechanism when the carriage is returned by means of the paragraphingflever. Fig. 5 is a fragmentary view showing the relation of the spacing mechanism after the carriage has been returned to the beginning of a line without spacing. Fig. 6 is a front View of the same. ,Fig. 7 is a detail view of the para graphing-lever. Fig. 8 is a view corresponding to Figs. 2 and 4, showing therelation of the parts of the automatic spacing and paragraphing mechanism when the carriage has been returned to the starting-point by the usual means employedfor that purpose.

Referring to the drawings, R and R indicate, respectively, the rotary platen and the reciprocating paper-carriage of a standard type-writing machine constructed and operating upon principles well known to those skilled in the art.

Divided and this application filed March 2, 1008. Serial No. 145,712. (No model.) i

It is the purpose of my invention, without in any manner changing or varying the regular means applied to such machines for returning the carriage to its starting-point and for rotating the platen to feed the paper and space the lines of writing, to provide independent mechanism which will be operated by the return movement of the carriage, to ro- "a lever Z. The lever is journaled in a block Z secured at one end to the lever Z and at the other end to the journal-block L, tends to hold the lever Z in such position'that the depending arm thereof issubstantially vertical and pawl Z is in position to engage the teeth of ratchet R and said spring serves to return the lever to the position aforesaid whenever said lever is released from any agency that moved it from its normal position.

Mounted in brackets N N on the front standards of the machine-frame and capable of partial rotation therein is a rod, B, upon which is adjustably secured a stop mechanism comprising a sleeve B secured to the rod by a set-screw B from which sleeve projects a lug B having an angular extension-rod B, generally parallel with rod B. Aspiral spring B, secured at its respective ends to the machine-frame and rod B, serves to turn the latter, so that the stop-lugB and the extensionrod B lie in a substantially horizontal plane and in the path of the lower end of lever Z.

Secured to the rod B, at the right-hand end thereof, is a curved lever-arm Q, by means of which the rod B is rotated in the bearings N N, and stop-lug B is turned down out of the path of lever Z, as shown in Figs. 3 and i.

The mechanism above described constitutes the automatic line-spacing mechanism and operates as follows: As the carriage approaches the end of a line lever Z occupies the position indicated in Figs. 1 and 2, with pawl Z ready to engage one of the normal faces of the ratchet-teeth. Ordinarily the carriage is returned to the starting-point by grasping a le- Ver projecting from the carriage and drawing the latter to the right. The operation, which is usually a manual one, may of course be accomplished by any automatic carriage-return mechanism. As the carriage approaches the end of its return movement the lower end of lever Z strikes lug B and the continued movement of the carriage rocks said lever in the'bearing-block L and forces pawl Z into engagement with the ratchet, thereby turning the platen R a distance equal to the throw of the pawl. As the carriage is advanced during the writing operation lever Z is retracted from engagement with stop-lug B and under the influence of spring Z assumes a vertical position and causes spring-pawl Z to ride over the inclined faces of the teeth of ratchet B into position for a subsequent spacing operation on said platen. By adjusting the position of the stop-lug B the extent of movement of the platen may be regulated. It is of course understood that the extent of movement of the platen for spacing different widths of lines can also be regulated by the usual platen ratchet-stops, such as are used on all standard machines. It is sometimes desirable', however, to return the carriage to the beginning of a line without spacingas, for example, for the purpose of correcting an error in the line previously written. In order to accomplish this, the operator depresses lever-arm Q, thereby turning rod B in bearings N N and throwingthe stop-lug B out of the path of movement of the spacing-lever Z. When the carriage is returned, the said lever Z rides over the stop-lug B aforesaid, so that there is no spacing movement of the platen. If the lever Q be now released, spring B* turns the rod B and forces extension-arm 1 of the stop-lug B against the lower portion of lever Z, and when the carriage carries said lever out of contact with said arm B" the latter together with lug B and rod B are turned up into horizontal position to continue the spacing operation upon the next return of the carriage. It will be noted that the extension-rod B serves the double function of preventing the lever-arm Z from passing behind the stop-lug B and thus stopping the advance of the carriage, and also incidentally to hold down the rod B until the lever Z has passed beyond the lug B in advance of the carriage, as shown in Figs. 5 and 6.

When it is desired to starta new paragraph, the operator usually returns the carriage to the beginning of the line and operates the spacer until the point of beginning the paragraph is reached. .In order to obviate this time-consuming and care-exacting operation, I have provided an additional lever attachment to the automatic line-spacing lever, by means of which the carriage may be returned by hand and automatically stopped at any predetermined point to begin a paragraph. This paragraphing device comprises an upwardly-extending lever-arm Z loosely journaled upon the horizontal portion of lever Z, having a depending projection Z on the lower side thereof, and a laterally-extending pin Z, adapted to engage an upwardly-extemling pin Z and said lever Z, said pin Z lying on the opposite side of said pin Z" from the platen end. A horizontal rod J, secured to the upper side of the machine-frame by means of a bracket J and set-screw J bears upon its outer end an adjustable stop-lug J", which is secured in position by a set-screw J", which lug rises in the path of movement of the depending lug Z on lever Z.

hen the carriage is returned, either manually or mechanically in the ordinary way, the lug Z owing to its lateral disposition on the lower side of the lever Z does not engage the stop-lug J. Hence the carriage returns the full distance to the starting-point. \Vhen it is desired to stop the carriage in its return movement at an appropriate point to start a new paragraph, the stop lug or detent .l is set at an appropriate point on the rod J, determined by the scale marked thereon, and the lever Z is grasped by the hand and the carriage returned by this means. As said lever Z is engaged it is rocked to the right, so that pin Z engages pin Z" on the linespacing lever Z, causing the latter to operate the platen to feed the paper for a new line. As the carriage continues its return move ment lug Z, which is now thrown direct] y in the path of the stop-lug J, engages the latter and arrests the movement of the carriage at the appropriate paragraphing-point, as indicated in Fig. et. It isto be particularly noted that this latter operation only takes place when the carriage is returned by means of lever At all other times said lever, which is loose upon the rod Z, does not turn as the latter is oscillated. Therefore lug Z is kept out of the path of the stop-lug J.

Having thus described my invention, what I claim is 1. A type-writing machine, having a papercarriage, a spacing-lever operated to turn the platen by the return of the carriage, an auxiliary paragraphinglever loosely mounted upon said spacing-lever, and adapted to return the carriage and coi'iperating lugs on the lastmentioned lever and the machine-frame to stop the carriage at a predetermined point in its return movement, when the carriage is moved by said paragraphing-lever.

2. A type-writing machine, having a papercarriage, a spacing-lever operated to turn the platen by the return of the carriage, and an auxiliary paragraph-lever connected with the spacing-lever operating to stop the carriage at a predetermined point in its return movement and to actuate the spacing-lever, when the carriage is returned by said paragraphing-lever.

3. A type-writing machine, having a papercarriage, a spacing-lever operated to turn the platen by the return of the carriage, and an auxiliary mechanism adapted to stop the carriage automatically at a predetermined point for the purpose of paragraphing, said mechanism consisting of a hand-lever loosely journaled on said spacing-lever, a pin on said paragraphing-lever engaging a similar pin on said spacing-lever to space the platen when the carriage is returned, a lug or projection on said paragraph-lever, and a lug on the machine-frame adapted to engage said projection on the paragraph-lever, and stop the carriage at a predetermined point of its return movement, when said movement is effected by means of said-paragraph-lever.

4. A type-writing machine, comprising a paper-carriage, means for normally returning said carriage to its initial point, and a paragraphing mechanism adapted to stop said car- -riage at a predetermined paragraph-point,

said mechanism comprising a hand-lever pivoted to the carriage and having a lug or projection thereon, and a lug or stop on the machine-frame adapted to engage the projection on said lever when the carriage is returned by said hand-lever.

5. A type-Writing machine, comprising a paper-carriage, means for normally returning said carriage to its initial point, and a paragraphing mechanism, said paragraphing mechanism consisting. of cooperating parts normally out of operative relationship, and means for momentarily throwing them into operative relationship at a predetermined paragraphing-point and thereupon automatically reestablishing their non-operating relationship, said means comprising a hand-lever on the carriage for returning the latter to the beginning of a new paragraph. v

6. A type-writing machine, comprising a paper-carriage, means for normally returning said carriage to its initial point, and a paragraphing mechanism, said paragraphing mechanism consisting of cooperating parts normally out of operative relationship, and means for momentarily throwing them into operative relationship at a predetermined paragraphing-point and thereupon automatically reestablishing their non-operating relationship, the shiftable or setting element of said paragraphing mechanism being mounted on the carriage and comprising a pivoted handlever for returning the carriage to the beginning of a new paragraph.

7. A paragraphing-stop for type-writing machines, adapted to limit the return movement thereof at will comprising an adjustable and a fixed stop member respectively attached to the carriage and to a relatively stationary part of the machine, means for holding said members normally out of contacting position during the ordinary sliding movements of the carriage in either direction, and means comprising a hand-lever for returning the carriage to the beginning of a new paragraph whereby the stop members may be caused to contact during the return movementof the carriage and arrest such movement thereof. at any desired point.

8. A paragraphing-stop for limiting the return movement of the carriage of a type-writing machine, comprising a swinging member attached to the carriage and a member attached to a relatively stationary part of the machine, one of said members being laterally adjustable to regulate the point at which the carriage will be arrested by the stops, springactuated means for swinging one member normally out of contacting position with the other, and means comprising ahand-lever for returning the carriage to the beginnmg of a new paragraph whereby said spring-actuated member may be thrown into engaging position by the hand of the operator simultaneously with or during the return movement of the carriage so that said stops will arrest such movement of the carriage at any predetermined point.

In testimony whereof I aflix my signature in presence of two witnesses.

NEAL LARKIN ANDERSON. Witnesses: 1

M. L. McIvER, ANNA F. ANDERSON.