US2569696A - Visible margin-stop setting mechanism for typewriters - Google Patents

Description

F. WLSCHREMP ET AL Oct. 2, 1951 VISIBLE MARCIN-STOP SETTING MECHANISM FOR TYPEWRITERS 2 Sheets-Shae; 1

IN V EN TORS. FREDERICK W. SCHREMP By EDWARD J- YEO Filed July 5, 1950 ATTORNEY.

Patented Oct. 2, 1 951 VISIBLE MARGIN-STOP SETTING MECHA- NISM FOR TYPEWRITERS Frederick W. ,Schremp, Stamford, and Edward J. Yeo, Norwalk, Conn., assignors to Remington Rand Inc., New York, N. Y., a. corporation of Delaware Application July 5, 1950, Serial No. 172,038

4 Claims.

1 This invention relates to improvements in typewriting and like business machines of. the type wherein the extent of paper carriage travel is predetermined by adjustable margin-stops which locked position relative to the toothed supporting rack.

The invention, as illustrated, is embodied in a Remington typewriter of the portable class, and

are selectively positionable along a toothed sup- 5 the drawings show only such conventional parts porting rack extending longitudinally within the of the typewriter as are deemed necessary to carriage. make clear the manner of applying the margin- The present invention comprehends the prostops and stop-setting mechanisms to typewriters vision of new and novel margin-stops which are generally. particularly designed and located in such a man- Attention is now directed to Figs. 1 and 4, her that at least a portion thereof is visible in wherein a portable typewriter carriage is indifront of the paper table at all times; which do cated generally by reference character A. The not in any way interfere with proper feeding of carriage includes a stamping comprising a base paper over the paper table; margin-stops having I 0, having end plates II and I2 bent upwardly an index or pointer cooperating with a margin therefrom, and tracks [3 bent downwardly therescale on the lower part of the paper table; and from. The carriageA and tracks l3 are supported stops which ailord economic fabrication and for letter-spacing and return movements upon facilitate finger-release manipulation during tracks M. by m an of ba b s The positioning the stops selectively along their suptracks M are attached to and between the typeporting rack without the necessity of manipuwriter side frames l6 by any suitable fastening lating any other parts of the typewriter, or means, such as screws IT. A platen or cylinder reachin behind the paper table, as is now the I8 is mounted for rotation between the carriage customary practice with stops concealed beneath end plates H and I 2, and a paper trough 1| 9, suitthe paper table. ably supported by base I 0, extends under and Other objects of the invention will be pointed upwardly t th a f p at i as lea y 1 out in the following description. and claims, and lustrated in the sectional view Fig. 4. All parts illustrated in the accompanying drawings, which thus far described may be of any well known or disclose, by way of example only, the principle of conventional construction, as they form no part the invention and the best modes, which have of the instant invention. been contemplated, of applying that principle.

In the drawings; Margin-stop mechamsm 1 is a top plan View of a typewriter As previously stated, it is an object of this inriage, with certain palms Omitted and offiher Part5 vention to provide a structure. wherein at least broke? away in the Vlcinity of the g e aportion of the adjustable marginstops is always margl'Q'stop and center stop facmtate visible in front of the paper table instead of being lustration of the right-hand stop in top plan. concealed from view beneath said table. To this 2 is a perspective View Of One Of the end the paper table, indicated generally by ma nop d fragmentary P01110115 0f the reference character B, has been designed. in two toothed p ting rack. parts indicated at 8. and 9 respectively. Lower Fig. 3 illustrates an enlarged front elevational 40 part a h a, pair of e rs 20 f rmed inte r l V w f the margin-Stop ShOWn in 2 as it therewith which are attached to the carriage end Will pp r when rele ed for slidin adj stment plates 1| and 12 by screws 2!. A scale 22, caliup the toothed pp g rack. brated in letter-spaces and inches, is located on Fig. 4 is an enlarged transverse vertical section the front surface of lower part 8, of paper table B, f the p p carriage taken long a plane inasclearly shown in Fig. 1. Upper part 9, of paper dicated y the line of ig. lo ing n the table B, is attached to the end plates H and I2 by direction indicated y the aIIOWS. flanges 23 and screws 24, the screws being re- 5 is an e ploded perspective view illustraceived by threaded holes in flanges 25 bent outting a margin-stop of modified construction. wardly from the carriage end plates H and 12 Fig. 6 is a vertical transverse section of the stop, respectively. The paper table portion 26, of in normal locked position upon the toothed supupper part 9, is further supported by tongues 2'! portin rack, taken on a plane indicated by the received by slots 28 punched in the. lower part 8 line 66 of Fig. 5, and of said paper table B. l Fig. 7 is a sectional view similar to Fig. 6 il- It will be observed, from the sectional view Fig. lustrating the stop as it will appear when in un- 4, that the upper edge 29 of lower part 8, is

tion with a center stop 33 in a well known manner. r l I According to the disclosed embodiment of the invention, the left-hand margin-stop member F, as shown in Fig. 3, includes a substantially G- rearwardly projecting lug or ear '32 for coopera shaped frame 34, the legs 35. of which have rectangular slots 35 to receive the rack D. An ear 31 is bent outwardly from the bottom of e'ach leg 35 to assure a smooth sliding movement of the stop on rack D. Rear 'wall 38 of stop F is provided with an off-set stationary arm 39 :having a forwardly bent finger-piece 40 formedintegral with its free end. An off-set movable arm 4 spring fits over a projection formed integral with the upper edge of rear wall 49. Arm 59 is guided for vertical movement within a notch formed in the ear 63 struck inwardly from the lower edge of wall 49. When stop G is mounted upon rack D, the rack serves to slidably retain arm 59 within the notch in ear 53.

Operation From the above description, taken'in connectionwith the drawings, it will be obvious that arms 39 and 4|, of margin-stops E and F respectively, project upwardly through the slot-like space C in paper table B at all times, and that location of the stops can readily be determined by means of the index point H on the stationary arms 39 in cooperation with the scale 22 on the lower part 8 of the paper table B. It will further be apparent, that to move or shift the stops to any selected position upon the rack D, an operator merely grasps the finger-pieces 49-45 as illus- 4|, pivotally mounted upon a stud 42 anchored to Wall 38, has a vertically disposed lip 43 which is normally held in locked engagement .with the teeth 3| of rack D, by a spring 44. V The upper end of spring 44 is anchored in a hole in the offset part of stationary arm 39, and its lower end is anchored in an off-set portion of movable arm 4| as clearly illustrated in Fig. 3. Movable arm 4| is further provided with a finger-piece 45, and sidewardly projecting elements 45 and 41. Element 46 merely serves to cover the space between the arms 39 and 4| respectively when they are in normal locked position and element 41 serves as a stop to limit clockwise movement of arm 4| on its pivot stud 42, when the stop F is removed from rack D. i The construction is such that when lip 43 bottoms between two. adjacent teeth 3|, to lock the stop on the rack, there is a slight clearance between the end of element 41 and leg 35 of the stop frame 34.

The construction of right-hand margin stop E is identical to that of the left-hand stop F except that an arm 48 projects downwardly from the wall 38 to operativel engage with the .bell ringing arm (not shown) in the conventional and well known manner.

A modified construction, for the margin-stops the upper edge of wall 49 terminate in up-standing ears 54 having aligned holes to receive ,a

pivot pin 55. Pivoted at its forward end, upon the pin 55, and between ears 54 is a U-shaped link 56, and a finger-piece 51 is made rigid with the link by a rivet 58. The rear end of link 56 is pivoted to ears formed integral with the upper end of arm 59, by a pivot pin 60, and the lower end of said arm has a vertically disposed lip 6|, L

which is normally held engaged with the teeth"- 3| of rack D, by a spring 62. The upper end of spring 62 encircles the head of rivet 58 as best shown in Figs. 6 and 7, and seats upon the lower surface of link 56, while the lower end of. said D. A pair of bracket arms 53 bent laterally from-' trated in' Fig. 3 and by pinching them together,

arm 4| is rocked counter-clockwise on its pivot 42, stretching the spring 44 and disengaging the lip 43 from the rack teeth 3|, thus permitting the stop to be moved to any desired setting upon rack D relative to scale 22. When a stop has been positioned to the desired location upon rack D, arms 39-4| are then released to permit spring 44 to reengage lip 43 with rack teeth 3| and lock the stop in adjusted position upon the rack.

Manipulation of the modified stop G shown in Figs. 5, 6 and '1 is slightly different from that just described in connection with stops E and F. To release the modified stop G, irom rack D, an operator simply presses rearwardly upon finger-piece 51, which in turn rocks link 56 on its pivot 55,

.driving arm 59 downwardly against the tension ,rearwardly, on finger-piece 51, the stop may be moved to any desired setting along the rack D by observing the index point H in cooperation with the scale 22. It will be further observed that finger-piece 51 projects upwardly through the slot-like space C, in paper table B, as shown in Figs. 6 and '7, in a manner similar to the projecting arms 39-4|, of stops E and F.

.While two particular embodiments of the invention have been shown and described, it will ing claims, to include within the scope of the invention, all such variations and modifications whereby substantially the results of the invention may be obtained by the use of substantially the same or equivalent means.

Having thus described our invention, What we claim as new and desire to secure by Letters Patent is:

1. In a visible margin-stop setting mechanism for typewriting machines and the like, the combination of, a paper carriage; a paper table supported by the carriage having a slot-like aperture extended longitudinally thereof; a toothed supporting rack mounted within said carriage and in vertical alignment with said aperture; a marginstop mounted for sliding movement on said rack; and manually operable means pivoted upon said stop including a lip adapted to normally engage selective teeth of said rack to lock the stop thereon, characterized by the fact that at least a portion of said manually operable means projects upwardly through said aperture and in front of said paper table whereby it can be grasped by an operator to free the stop and move it along the rack when adjustment of the stop relative to the rack is desired.

2. In a visible marginstop setting mechanism for typewriting machines and the like, the combination of, a carriage; a paper table having a slot-like aperture extending longitudinally thereof; scale graduations adjacent said aperture; a toothed rack below said table and in vertical alignment with said aperture; a margin stop adjustably mounted on said rack; an indicator point on the stop to register with said scale graduations; an arm pivoted upon said stop; locking means on said arm engageable with selected teeth of said rack for normally holding the stop in adjusted position upon the rack; and manually operable means carried by said arm and projecting upwardly through said aperture in front of said table, for releasing said locking means when adjustment of the stop along the rack to a selected position relative to said scale graduations is desired.

3. In a visible margin-stop setting mechanism for typewriting machines and the like, the combination of, a carriage; a paper table having an aperture extending substantially from end to end thereof; letter space graduations on said table adjacent to said aperture; a toothed margin-stop rack behind said table and below said aperture; a margin stop slidably mounted on said rack in letter spacing direction; an arm fixed to said stop and projecting upwardly through said aperture; an index point on said arm toregister with said graduations on said table; a second arm pivoted upon said stop also projecting through said aperture; and locking means on said second arm normally engaged between selected teeth of said rack to hold the stop in adjusted position, character ized by the fact that said fixed and pivoted arms respectively are at all times visible in front of said table, and when the pivoted arm is moved towards the fixed arm, the stop is unlocked and free to be moved along the rack to any desired adjusted position relative to said letter space graduations.

4. In a margin-stop setting mechanism for typewriters and the like, the combination of, a carriage; a paper table provided with a slot-like aperture extending longitudinally thereof; gradnations on said table adjacent said aperture; 2. toothed margin-stop rack behind said table and below said aperture; a margin-stop slidably mounted upon said rack; a link pivotally connected to said stop; an arm pivotally connected to said link; locking means carried by the lower end of said arm for engagement with selected teeth of said rack, to hold the stop in adjusted position; spring means acting to normally hold said locking means engaged with said rack; and a finger-piece fixed to said link and projecting upwardly through said aperture, and in front of said table, which when pressed towards said table, releases said locking means to free the stop for movement along the rack to any desired adjusted position with respect to said graduations.

FREDERICK W. SCI-IREMP. EDWARD J. YEO.

REFERENCES CITED The following references are of record in the file of this patent:

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