US809675A

US809675A - Type-writing machine.

Info

Publication number: US809675A
Application number: US20177704A
Authority: US
Inventors: Jacob Felbel
Original assignee: UNION TYPEWRITER CO
Current assignee: UNION TYPEWRITER CO
Priority date: 1904-04-05
Filing date: 1904-04-05
Publication date: 1906-01-09
Anticipated expiration: 1923-01-09

Description

No, 809,675. PATENTED JAN."9, 1906. J. PBLBBL. TYPE WRITING MACHINE.

APPLICATION FILED APBJ, 1904.

UNITE SATgEg PATENT OFFICE.

JACOB FELBEL, OF NEWV YORK, N. Y., ASSIGNOR TO UNION TYPEWRITER COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TYPE-WRlTiNG MACHINE.

Specification of Letters Patent.

Patented Jan. 9,1906.

To all whom, it may concern:

Be it known that I, JACOB FELBEL, a citizen of the United States, and a resident of the borough of Manhattan, city of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Type-Triting Machines, of which the following is a specification.

My invention relates to type-writing machines, and has for its main object to improve the means for guiding and controlling the type-bar at and near the printingpoint.

Heretofore in visible writing machines when a finger-key is struck harder or sharper than is common it will usually be found that the imprint of the type shows above the line of writing. It requires but a very slight elevation above the normal linea thousandth or half a thousandth of an inch will sufliceto attract the eye and give the impression that that particular type is considerably out of alinement. This difference in vertical alinement of the imprint may be accentuated by actuating the bar to print first under a slow stroke of the finger-key and subsequently under a hard quick stroke. If there be any looseness in the pivot of the type-bar, the centrifugal force generated under the hard staccato stroke will force the type-bar to move longitudinally as far as it can in a direc tion away from the normal pivotal point and the type will print above theline, the distance varying with the amount of end thrust or end chuck, as it is commonly called by COD: structors, developed in the case of each individual typebar. Under a slow stroke the type will not be forced so far away from the center of motion as under a sharp hard stroke. Furthermore, there is a tendency on the part of the type-bar pivot to yield and finally to weaken under this continually-recurrin whi in action as it ma be called, of the type-bar, so that the pivot frequently becomes distorted, and the alinement is thus permanently impaired.

To correct these and similar defects is the chief aim of my invention, one mode of constructing which is shown in the accompanying drawings, wherein- Figure 1 is a vertical front-to-rear sectional view of a type-writing machine embodying my invention with such parts omitted as are not material. Fig. 2 is a fragmentary front elevation of thesegment with several typebar hangers thereon and their typebars shown partly in section. This view is taken 'on the plane represented by the dotted line :1:

cc of Fig. 1. Fig. 3 is an enlarged rear elevation of a type-bar hanger and guide or controller. Fig. 4 is an enlarged side elevation of a hanger and guide, part of the hanger being broken away and a portion of the type bar being shown mounted therein. Fig. 5 is an enlarged section taken on the line y y of Fig. 1, showing the type-bar guide and the coacting part of the type-bar as it appears when in printing position.

A Like numerals indicate like parts throughout the several views, in which- 1 is the base of the machine.

2 represents corner-posts sustaining the top plate 3, which in turn supports a carriage (not shown) of any desired construction, said carriage being provided with a platen 4, diagrammatically illustrated.

Key-levers 5 are provided with finger-keys 6 and returning-springs 7 and are pivoted at S in the rear of the base of the machine. Pivoted at 9 to each key-lever is a sublever 10, having at its lower end a slot 11, which cooperates with a fulcrum-bar 12, which is mounted in the sides of the base 1. The upper end of each sublever 10 is pivoted at 13 to a link 14, the forward end of which is pivoted at 15 to the type-bar 16, supported at its type end on a segmental rest 17. The rest or pad 17 is in turn supported by several arms, of which 18 is one, extending forwardly from the type-bar segment 19. For the pur poses of my invention it is immaterial whether the segment 19 be fixedly or movably connected with its brackets or supports, of which the lefthand one 20 is shown. The hanger-supporting part 21 of the segment has a series of radial slots 22 in its front face, adapted to receive the hangers 28. The hangers may be of folded sheet metal, as shown herein, or formed out of a solid piece. In its finished form each hanger has on its under side a notch or cutaway 24, by means of which the hanger fits over or embraces the hanger-support 21 of the segment, at the same time occupying its appropriate radial slots 22. \Vhen thus positioned, the hanger 23 is secured in any suitable manner, as by a set-screw 25, passing through the rear wall 26 and abutting against the rear face of the hanger-supporting part 21. This mode of making and mounting the hangers is, however, claimed in my prior application, filed March 14, 1904, Serial No. 197,963. Forward of the segment each hanger is provided with side walls 27, having horizontally-projecting portions 28, in which the type-bar 16 is pivoted at 29. Depending from the side walls 27 are the portions 30, affording a bearing for the type-bar-controlling means or guide. As here shown, this type-bar guide consists of a small roll or wheel 31, having a groove 32, Fig. 5, and a pivot 33, which is seated in the depending portions 30 of the hanger side walls 27 As best appears in Fig. 4, the type-bar 16 is provided with a portion 34, which as the type-bar lies in normal position extends rearwardly and upwardly from the type-bar pivot 29. The end 35 of this portion 34 is hook-shaped or curved, so as to conform to the type-bar guide roll or stop 31 with which it coacts, and its sides have a bevel 36, Fig. 5, adapting it to fit the V-groove 32 of the. guiding means 31 when the type-bar is in printing position, as shown by the dotted lines in Fig. 1. The guide-coacting portion 35 of the typebar terminates in a rounded tip 37, as shown in Fig. 4. It is not deemed necessary to describe further in detail the type-bar-actuating mechanism, which, as here shown, is of a well-known construction. Other type-baractuating mechanisms may be substituted within the scope of this .invention. It is sufficient to say that when a finger-key is adequately depressed the type-bar 1 6, through sublever 10 and link 14, is moved from the normal position, as shown by the full lines in Fig. 1, to the printing position, as shown by the dotted lines in the same figure. If the key-stroke is hard or sharp, the whipping action heretofore described is set up but as the type-bar nears the printing-point the rounded tip 37 of the guide-coacting portion 35 of the bar guides the said portion 35 into cooperative relation with the grooved guideroll 31. The coaction of the guide-roll 32 and the part 35 restrains the bar 16 longitudinally. If because of looseness, yield, or other defect of pivot or bearing it begins to whip forward longitudinally during the fore part of the stroke, the bar will be checked or curbed through the portion 35 coacting with its guiding means or stop 31. As the bar nears the printing-point the part 35 cooperates more and more closely with the guiding means, and at the printing-point the coacting parts are in exact agreement, as seen in Fig. 5 and the dotted lines in Fig. 4, and the type will print always at the same point, rela.

tively speaking, despite any variation in the key-stroke and defect in pivot or bearing. The greater the end thrust or end chuck the sooner will the tip 37 begin to coact with the guide-roll 31. Furthermore, the groove 32 in the uide-roll 31 and the bevel 36 of the part 35 coact, Fig. 5, to guide the bar later ally when at the platen, so that the guiding means guides and restrains the bar both laterally and longitudinally.

It will of course be understood that I do not desire to limit myself to the particular form of guiding means herein shown and described. The roller may be fixed against rotation, and various other changes may be made within the scope of my invention.

It will be seen from the foregoing and from the drawings that I have provided means for preventing thev type-bar from moving longitudinally at the printing moment; that such means are provided for each individual typebar that one part of said means is on the type-bar and the other part is fixed and preferably on the type-bar hanger; that one part of said means is in the form of a hook-shaped arm or catch in rear of the pivot of the typebar and that the other part is fixed at a point below or in rear and adjacent to the pivot of the type-bar when the type-bar is in printing position; that the means for preventing the type-bar from moving in the direction of its length comprise catching devices which normally are separated, but which coact at or about the time the typeprints, and that my invention is not confined to a purely pivoted type-bar, inasmuch as it may be used in connection with a ball-bearing or any other suitable form of pivotally mounted or swinging type-bar.

What I claim as new, and desire to secure by Letters Patent, is'

1. In a type-writing machine, the combination with a pivotally-mounted type-bar, of a type-bar hanger, and means, mounted in the hanger and independently movable therein, for preventing longitudinal movement of the bar at the printing moment.

2. In a type-writing machine, the combination with a pivotally-mounted type-bar, of a type-bar hanger, and means on the typebar and on the hanger for preventing longitudinal movement of the bar at the printing moment, the means on the hanger being independently movable.

3. In a type-writing machine, the combination of a pivotally-mounted type-bar having a catch and a type-bar hanger provided with a rotary cooperating device to be engaged by said catch.

4'. In a type-writing machine, the combination of a pivotallymounted type-bar, a catch on said bar in rear of said pivot, a typebar hanger, and a rotary stop on said hanger to cooperate with said catch.

5. In a type-writing machine, the combination of a pivotally-mounted type-bar provi cled with a catch V-shaped in cross-section, and a type-bar hanger provided with a V- shaped stop to cooperate with said catch.

6. In a type-writing machine, the combination of a pivotally-mounted tyne-bar pro vi ded with a rearwardly-extending arm terminating in a catch that is V-shaped in crosssection, and a type-bar hanger provided with a cooperating device having a V-shaped groove.

7. In a type-writing machine, the combination of a pivotally-mounted type-bar having arearwardly-extendinghook-shaped arm, and a type-bar hanger having a cooperating roll provided with a V-shaped groove.

8. In a type-writing machine, the combination of a pivotally-mounted type-bar having a rearwardly-extending hook-shaped arm, a type-bar hanger provided with downwardly-extending supporting portions, and an independently-movable cooperating stop mounted therein and adapted to be engaged by said hookshaped arm to prevent the bar from moving lengthwise.

9. In a typeavriting machine, the combination of a type-bar, a hanger, a guide in the hanger, said guide being independently movable and cooperating with the type-bar to control it longitudinally.

10. In a type-writing machine, the combination of a type-bar, a hanger, and a pivotally-mounted guide in the hanger and cooperating with the type-bar to guide it longitunally and laterally.

11. In a type-writing machine, the combination of a type-bar and an individual longitudinal guide for the bar adapted to be moved thereby and to cooperate therewith at and near the printing-point.

12. In a type-writing machine, the combination of a typebar and an individual longitudinal and lateral guide for the bar adapted to be moved thereby and to cooperate therewith at and near the printing-point.

13. In a type-writing machine, thecombination of a type-bar, a hanger, and a guide pivotally mounted in the hanger and adapted to cooperate with the type-bar, at and near the printing-point, to guide it longitudinally.

In a type-writing machine, the combination of a type-bar, a hanger, and a guide pivotally mounted in the hanger and adapted to cooperate with the type-bar, at and near the printing-point, to guide it longitudinally and laterally.

15. In a type-writing machine, the combination of a rotary longitudinal type-bar guide and a part coacting therewith, the two being brought into cooperation by the movement downward from normal position of one of the coacting parts.

16. In a type-writing machine, the combination of a rotary longitudinal and lateral type-bar guide and a part coacting therewith the two being brought into cooperation by the movement downward from normal position of one of the coacting parts.

17. In a front-strike type-Writing machine, a type-bar having a portion normally projecting rearwardly from its pivot and adapted to coact with a rotary longitudinal type-bar guide below the pivot.

18. In a front-strike type-writing machine, a type-bar having a portion normally projecting rearwardly from its pivot and adaptedto coact with a rotary longitudinal and lateral type-bar guide below the pivot.

19. In a type-writing machine, a hanger having a longitudinal type-bar guide pivotally mounted therein.

20. In a type-writing machine, a hanger having a longitudinal and lateral type-bar guide pivotally mounted therein.

21. In a ty e-writing machine, a type-bar having a beve ed portion adapted to cooperate with a grooved roller to guide the typebar longitudinally and laterally.

Signed at the borough of Manhattan, city of New York, in the county of New York, and State of New York, this 26th day of March, A. D. 1904.

J AGOB FELBEL.

Witnesses:

K. V. Donovan, E. M. WELLS.