US684887A - Feed mechanism for type-writing machines. - Google Patents

Description

No. 684,887. Patented Oct. 22,1901. H. L. & F. L. WAGNER.

FEED MECHANISM FOR TYPE WRITING MACHINES;

(Application filed. Sept. 2, 1898.)

(No Model.)

2 Sheets-Sheet I WITNESSES: INVENTORS 3 8% f/ 1 i M W %M W v BWWW ATTORNEYS no. 684,887. Patented -0ct,22,'|9o|.

H. L. a r. Lwmflsn, FEED MECHANISM FOR TYPE WRITING MACHINES.

(Application filed Sept. 2, 1899.) (No Model.) 2 Sheets-Sheet 2.

OJ WITNESSES:

I ATTORNEYS Tn: uonms MYERS 00,. mmauma. wuummon. n. c.

UNITED STATES PATENT OFFICE.

HERMAN L. .WAGNER, OF BROOKLYN, AND FRANK L. WAGNER, OF NEW YORK, N. Y., ASSIGNORS TO THE WVAGNER TYPEWRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

FEED MECHANISM FOR TYPE-WRITING MACHINES SPECIFICATION formingpart of Letters Patent N0. 684,887, dated October 22, 1901.

Application filed September 2, 1899. Serial No. 729,295. (No model.)

To all whom it may concern:

Be it known that we, HERMAN L. WAGNER, a resident of Brooklyn, Kings county, State of New York, and FRANK L.WAGNER, a resident of Manhattan borough, city, county, and State of New York, citizens of the United States, have invented an Improved Feed Mechanism for Type-Writing Machines, of which the following is a specification.

Our invention relates to carriage-escapement mechanism for type-writing machines; and the main object ofthe invention is to provide a simple and efficientfeed mechanism whereby the parts can be readily adj usted to release the carriage for letter-spacing either just before or just subsequent to the impression of the type, according to the adjustment of the machine.

To these ends our invention consists in a typewriting machine embodying the novel arrangement and combination of parts to be hereinafter described and claimed, and broadly in an escapement mechanism for type-writing machines wherein a change of z 5 throw of a part thereof can be effected to change the feed action of the mechanism to bring about the feed of the carriage just before or just subsequent to theimprint of a character.

The arrangement for permitting the escape of the carriage just after an impression has been made is known as the natural or ordinary feed, whereas the arrangement which permits the escape of the carriage just before the impression of the type has been made is known as a speed mechanism, by reason of the fact that a quicker action or feed of the carriage is provided by the last-mentioned mechanism.

40 It will be understood that our invention is applicable to any type-writin g machine wherein a reciprocating carriage is employed.

In the accompanying drawings, wherein like characters represent corresponding parts 5 in both views, Figure 1 represents a central transverse vertical sectional view of a sufficient number of parts of a machine to illustrate our invention. Fig. 2 is a rear elevation of the same.

The main frame A of the machine is provided with tracks a, upon which bear rollers 12, carried by a suitable reciprocating c'arriage B, which supports'a platen O, Depending from the carriage B are arms (1, which support a feed-rack D, which is adapted to be raisedto free itself from engagement with the feed-(logs in a manner to be hereinafter described. Cooperating with the feed-rack D is a suitable dog mechanism, which may be of any well-known or preferred construction. In the present instance two dogs or pawls are shown, which dogs or pawls are carried upon. a vibrating piece or carrier 61, which is pivoted to upright supports fon the framing of the machine, as indicated at gin Fig. 2 0f the drawings. This carrier e supportsthe dogs h i, one of which is fixed upon the carrier, while the otheris free to vibrate thereon'the distance between two teeth of the rack-bar D to feed the carriage, as is well understood. "7 0 The carriercis preferably slotted, as indicated at j, for the reception of the freeend of a link E, which constitutes what we term a controlling member. This link E is provided. with an aperture through which eitherone of the pins 7c is adapted to project, so as to constitute a connection between the carrier and link. These pins in are carried by a plate 00, made adjustable upon the carrier by the pin-and-slot connections y, and one pin projects upon each side of the pivotal axis of the carrier 0. The link E is maintained in operative engagement with the carrier by. a leafspring Z, which bears upon one Wall of the slot j and normally maintains the free end of the link E in engagement with one of the pins it. It is obvious, however, that any suitable connection may be provided which will permit the adjustment of the link on the feeddogs or their carrier to either side of the pivo otal center thereof. The link E is made up of two sections which are united by screwand-slot connections m n in order that the sections may be adjusted to extend or contract the link in the direction of its length. 5 To facilitate an adjustment of the link E upon the pins k, a handle ois provided at the free end thereof, while the opposite end of the link is pivoted to a cruciform lever F, as indicated at p. This cruciform lever is [00 pivoted to a support mounted on the bedplate of the machine, as indicated at q, and the arm F thereof is provided with a lat erally-projecting pin 0", with which the free end of a spacing-lever G is adapted to cooperate. This lever G is provided with the usual spacing-key G. The lowermost arm F of this cruciform lever F is connected adjustably to a retractile spring .9, one end of which is secured to a fixed portion of the machine, as indicated at t, and this spring tends to normally maintain the cruciform lever and the parts connected thereto in the normal position. The rearwardly-extending arm F of the cruciform lever Fis adapted to extend into the path of an arm 11, carried bya rockshaft H. This arm H is curved on the lower face thereof, which contacts with the arm F of the lever F, in order that it may rock thereon and provide an easy movement thereof. The rock-shaft H is provided with two upright arms 1-1 that are pivoted to brackets H", which extend from a segmentaluuiversal bar 1-1, as shown in Fig. 2. This segmental universal bar 11 is connected to and supported by slides I I, which permita backward- The rear end of each of the slides K is provided with a hook K, which is open toward the front of the machine and isadapted to engage the universal bar H and to transmit movement thereto when moved toward the front of the machine, but to move independently of said universal bar when the slide is moved in the reverse direction. Each of the slides K is likewise prOvidedwith a slot K into which a pin K is adapted to engage. The pin K is carried upon an arm L of a key-lever L, which is provided with a finger-key L The key-lever is pivoted at L to a suitable stud projecting from the bed-plate of the machine. from the key-lever to the slide K, which moves forward and oscillates its corresponding typebar J to bring the type thereon to the printing-point, and this movement of the slide K causes the universal bar to be moved forward and to transmit motion through the arms H and the rock-shaft H to the arm H. The arm H being thus depressed forces the arm F of the lever F downwardly and causes the link E to be moved rearwardly. It will be understood that the feed action of the dogs will depend upon the adjustment of the link E-that is to say, if the link be connected to theupper pin 75 then an operation of a finger-key will cause the dog 71. to be disengaged from By this means motion is transmitted the rack D and the dog 2' to be brought into engagement therewith, whereas the reverse of this movement will follow if the link E be connected with the lowermost pin of the carrier 6. In other words, the adjustment of the link E upon the upper or lower pin 70 will change the direction of throw of the carrier of the feed-dogs, and the extent of this throw may be regulated by the pin-and-slot connections or n, which secure the sections of the link E together, so that by these means either pawl is adapted to be held normally in engagement with the rack.

In order that the rack D may be freed from the feeddogs, so that the carriage may be moved by hand, we make the depending arms d vertically movable, the rack and arms being maintained normally in the lowermost position by springs it, which are each connected at one end to a pin u on each of the arms d and at the other end to a stud a each carried by an arm 20 depending from the carriage B. The upper. end of each of the arms or slides d is provided with a recess into which an arm a; projects. These arms 1; are secured to a rock-shaft t), which is likewise provided 7 with one or more arms 0 which may be engaged by hand to transmit movement to the rock-shaft c, and thus elevate the slides d to raise the rack D out of engagement with the feed-dogs, with which it codperates. It will thus be observed that a movement imparted to either the spacing-key or to anyone of the key-levers will transmit movement to the link E and will thereby cause. the feed-dogs to be vibrated on their pivot laterally with relation to the rack, so as to permit the carriage to move one space. WVhen the finger is raised from the key, the parts assume their normal position. When the link E is connected with the carrier 8 in the manner represented in full lines in Fig. 1' of the drawings, the carriage will, we will assume, be fed just after the type bar has impressed its character against the paper on the platen, and this provides what is known as a F natural or ordinary feed; but when the link E has been shifted to the other side of the pivot of the carrier E and has been brought into engagement with the uppermost pin 70 the parts will be in the position represented in dotted lines in Fig. 1 of the drawings, and the direction of throw imparted to the dogs will be the reverse of what it was when connected with the lowermost pin, thus producing what is known as the speed mechanism, which permits the carriage to be fed just before the type-bar impresses its character upon the paper on the platen.

YVhile we have shown and described with some particularity the construction and arrangement of parts, we would have it understood that we do not limit ourselves to the precise construction and arrangement of parts shown, inasmuch as various modifications may be made without departing from the spirit of our invention.

the escapement for holding either thepawl or,

the detent normal-lyin engagement with said toothed member, substantially as described. 2. In combination, the escapement, the keys and the means interposed between the keys and the escapement for changing the direction of movement or throw of said escapement in relation to the movement of the keys, substantially as described.

3. In combination, the escapement, the controlling member, the keys, connecting means between the same and said controlling member, and adjusting means for changing the direction of movement or throw of said controlling member, substantially as described.

4. In a type-writing machine, the combination of a carriage, a feed-rack therefor, a suitabledog cooperating with said feed-rack, one of said last-named parts being mounted to move laterally with relation to the other,

means for laterally moving said laterallymovable part and means for adjusting said moving means to change the directionof throw of said movable part and thereby var-y the feed action of the parts.

5. In a type-writer, the combination of a carriage, a feed-rack therefor, a suitable feeddog cooperating with said feed-rack, one of said last-named parts being pivotally mounted to move laterally with relation to the other, means for laterally moving said laterally-movable part and means for adjusting said moving means to apply the moving force to one or the other side of the pivot of the movable part and thereby vary the feed action of the parts.

6. In a type-writing machine, the combination of a carriage, a feed-rack carried thereby, a suitable feed-dog cooperating with said feed rack, said feed dog being pivotally mounted to move laterally with relation to the rack, means for laterally moving said feed-dog and means for adjusting saidv moving means to apply the moving force to one or the other side of the pivot of the dog to change the direction of throw of said dog and thereby vary the feed action of the parts.

7. A type-writing machine provided with'a paper-carriage, a pivoted feed-dog therefor, and cooperating feed-rack, an extensible rigid link made adjustable along the dog or'its support and to either side ofthe pivoted axis of said feed-dog or its support for varying the feed action and speed of the dog and means for maintaining the link in its extensibly-adjusted position, substantially as described.

8. A type-writing machine provided with aswinging or pivoted feed-dog, a key-actuated universal bar, alever actuated by the universal bar, and a link made to connect the lever and dog, said link being made shiftable to opposite sides of the dogpivot to vary the feed or writing substantially as described.

9. A type-writing machine provided with a feed-dog and cooperating feed-rack, an actuating-link and mechanism substantially as described for actuating the link, said link be= ing shiftable on the dog to change the direction of the throw thereof to varythe feed 210-- tion and being forked to straddle or hold the dog during shifting substantiallyas' described.

10. A type-writing machine provided with a feed-dog, a shiftable actuating-link therefor, said dog having catches or pins for holding the link in various positions in order to change the direction of throw of the dog to vary the feed action, substantially as described.

11. A type-writing machine provided with a feed-dog and with a shiftable actuating-link therefor, said dog having catches or pins with which the link is adapted to engage and said pins being adj ustablysecured to the dog sub stantially as described. 7

HERMAN L. WAGNER FRANK L.- WAGNER Witnesses:

MAURICE BLOCK, CHARLES E. SMITH.

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