US3333671A

US3333671A - Paper draw-off guide

Info

Publication number: US3333671A
Application number: US435455A
Authority: US
Inventors: Rohde Karl Heinrich
Original assignee: Olympia Werke AG
Current assignee: Olympia Werke AG
Priority date: 1964-08-28
Filing date: 1965-02-26
Publication date: 1967-08-01
Anticipated expiration: 1984-08-01
Also published as: DE1449980B2; CH430763A; DE1449980A1; GB1086455A

Description

1967 K. H. ROHDE $333,671

PAPER DRAW-OFF GUIDE Filed Feb. 26, 1965 KAR HE/NR/CH RO I'DE 2 av m QM ATTOR/Vffi United States Patent 3,333,671 PAPER DRAW-OFF GUIDE Karl Heinrich Rohde, Wilhelmshaven, Germany, assignor to Olympia Werke A.G., Wilhelmshaven, Germany Filed Feb. 26, 1965, Ser. No. 435,455

Claims priority, application Germany, Aug. 28, 1964,

4 Claims. (Cl. 197-133) This invention relates to paper guides, and particularly to a paper guide for use with writing or printing machines and especially for use with a calculating machine.

In machines of the nature referred to, it is not uncomrnon for the member receiving the writing to be in the form of an elongated paper strip. It is desirable, in some machines, to observe the paper strip after it has been written upon and for this reason it is of an advantage to be able to support the paper strip in position where it can be observed and also to support the paper in such a position that it will not get into the slit adjacent the platen or roller into which a new strip of paper is to be inserted.

Furthermore, it is desirable to prevent the paper strip from adhering to the roller or platen.

Paper holders or guides of this nature, as they are found in typewriters for example, are often in the form of narrow strips of sheet metal or plastic which can be swung between operative and inoperative positions. Such guides or holders can also be telescopically mounted on the machine and provided with scales to indicate the position of the paper so that the end of the paper strip when it is relatively short can be determined.

Paper holders of the nature referred to are used to facilitate the handling of the sheets, but they also make it difficult to make notations on the sheets as they are fed from the machine.

The present invention proposes an improved novel paper support and guide having a support on which the guide can assume either an operative or inoperative position in which the guide is at least as wide as the paper to be fed through the machine and is firm enough to permit writing upon the paper resting thereon. Furthermore, when the paper is written upon in this manner, the guide prevents hand written notations from being transferred to blank sheets therebeneath.

With the foregoing in mind, it will be evident that a primary object of the invention is the provision of an improved paper guide and support for paper sheets for use with writing and printing machines and in particular, for calculating machines.

A further object of this invention is the provision of an arrangement of the nature referred to in which the support or guide is moveable between effective and ineffective positions.

A still further object of this invention is the provision of a paper support and guide which can readily be incorporated in a machine, such as a calculating machine.

In general, the present invent-ion is practiced by providing a guide or support in the form of a plate which is tiltable about an axis parallel to the platen and which will rest against an abutment when in inclined position.

The plate referred to is preferably of such a size that when it is in an inoperative position it will shield or close the machine from above, thereby covering the tearoif rail and the typing mechanism of the machine to exclude dust and foreign matter therefrom. Also, the plate can be mounted in a frame insertable in the top opening of a calculating machine with the plate tiltable in the frame to open and close the top of the machine.

It is proposed in one form of the invention, to engage the lower portion of the plate referred to by lugs secured to an insert forming a part of the upper wall of the machine. Downwardly extending flanges can be provided on the top wall of the machine, supporting lugs for pivotally engaging the lower portion of the plate .when such flange is employed. The edge where the flange is connected to the top wall of the housing can serve as an abutment for the plate when the plate is tilted to its inclined operative position.

In other cases, the supporting lugs can be interconnected by a transverse bar which, in turn, is secured to a downwardly extending flange of the top wall, in which case the upper edge of the transverse bar may serve as an abutment for the plate.

It is further suggested for the supporting means for the pivoted plate to have a downwardly inclined resilient blade for directing the paper away from the roll so that the paper will not adhere to the roll but, rather, will be guided directly to the support or guide plate according to the present invention. Such a blade is preferably provided with an upper spring edge for cooperation with the lower edge of the support plate to keep the support plate pressed against the abutment referred to, preferably when the plate is in operative position. Such a deflector blade can also be made integral with the support means for the guide plate.

It is advantageous for the free edge of the guide plate to be sloped to fit a similarly sloped portion of the upper wall of the housing to form a tight closure between the housing and the plate when the plate is closed down on top of the machine. The said plate can be provided with a handle for manipulation thereof, for example, at the free edge thereof.

The exact nature of the present invention will become more apparent upon reference to the following specification taken in connection with the accompanying drawings, in which:

FIGURE 1 is a perspective view showing a support and guide plate, according to the present invention, mounted on a calculating machine;

FIGURE 2 is a fragmentary vertical sectional view through the machine of FIGURE 1, showing a particular manner of mounting the paper guide and support plate of the present invention on the calculating machine; and

FIGURE 3 is a fragmentary perspective view showing at somewhat enlarged scale, details of the embodiment of FIGS. 1 and 2.

In the example shown on the drawing, the machine '10 is completely contained in a protective machine housing 22 and carries on its rear portion a roll 6 of a band-shaped paper web 8 mounted for rotation on supports 7. The upper or top housing wall comprises an insert 12 with an opening 11 in the middle thereof through which the independently rotatable ordinal series of printing rollers 9 and the tear-off bar 23 are visible.

The paper holder of this invention is in the form of a plate 1 whose width is at least equal to the width of the paper web 8 and of the web portion 5 which forms a sheet supported on plate 1. In FIGURES 1 and 2 the plate 1 is shown in an upright operative position. In FIGURE 2 the resting position 1 of the plate is also partly shown by a dot-dash line in which position where the plate is swung forward with its upper inclined face portion 1a resting upon a similarly inclined housing wall portion 12a. The free bent edge portion 1b of the plate forms a handle 1b for bringing the plate from this resting position into its operative position and projects from the top surface of insert 12 in the resting position in which plate 1 closes opening -11.

The axis about which this right operating position into its resting position or vice versa is parallel to the axis of the platen 3. Plate 1 in the inclined position forms a backing for the imprinted web portion 5 which has passed the printing region formed by plate swings from its up- 3 printing rollers 9 and platen 3, and may require Written notations. In the resting position, plate 1 serves as a closure for opening 11 in insert 12, and forms a part of the top wall of the machine. The pivots 2 of the plate 1 are at a higher level than the axis of the platen 3.

The lower portion 16 of plate 1 is pivotally mounted in bores 2a of a pair of supporting

lugs

14 and 15, connected by a yoke bar 19, which may be carried by the insert 12, or by a flange 17 of housing 22, as shown in FIG. 3, secured by rivets 19'. These lugs can be attached directly to flanges of insert 12. A shaft 2 passes through bores 2a and through the lower portion 16 of the plate 1.

In these cases the abutment for the plate 1 in the upright position is either formed by the edge 4 where the downwardly extending flange 17 joins the rear portion of the top wall of the housing 22, or by the upper edge 18 of the yoke bar 19.

FIGURES 2 and 3 show that the

members

14, 15, 19 which support the plate 1 for pivoted movement can also carry a resilient downwardly inclined paper deflecting blade 20 with a spring edge 21 which cooperates with the lower edge 16a of plate 1 to keep the plate in the operative position against abutment 18. The pressure of spring edge 21 will then have to be overcome when the plate 1 is to be swung forward into its resting position.

When the shape of the machine housing permits it, the paper deflecting blade 20 and the supporting

parts

14, 15 and 19 can all be formed of a single piece of sheet metal whose transverse bar 19 can then be secured to the downwardly extending flange 17.

FIGURE 2 shows in cross-section the tear-E bar 23 and the path of the untyped portion of the paper web 8 to the platen 3.

The paper take-oil of this invention can also be supported by the carriage of a printing or typing machine without extensive reorganization.

It will be understood that this invention is susceptible to modification in order to adapt it to difierent usages and conditions; and accordingly, it is desired to comprehend such modifications within this invention as may fall within the scope of the appended claims.

What is claimed is:

1. In a machine such as a writing, printing, or calculating machine having a frame with a platen therein on which the paper being treated rests and which frame has an opening in the top wall through which the paper and at least the top of the platen is accessible; a support plate carried by the frame above said platen and in an inclined position to form a support and guide for paper leaving the platen and of a'firmness to permit the paper on the plate to be written upon, said plate being at least as wide as the paper being treated, said frame including means near the back edge of said opening pivotally engaging the lower edge of the plate for pivotally supporting the plate in the frame, and abutment means on the frame to engage and halt said plate in its said inclined position, said means near the back edge of said opening including a resilient blade element inclined downwardly toward said roller and terminating near the point of separation of the paper from the roller to deflect the paper away from the roller and toward said plate, said blade including resilient means yieldably engaging the lower edge of said plate and biasing said plate toward said abutment means when said plate is in its said inclined position.

2. An arrangement according to claim 1 in which said blade and the said means near the back edge of said opening are formed as a single integral piece.

3. In a machine including printing means, a platen and a housing enveloping said printing means and platen and having a top wall formed with an access opening located above said printing means and said platen, said opening having a width at least equal to the predetermined width of a paper sheet to permit passage of a paper sheet from said printing means out of said housing, in combination, a paper support plate having a width corresponding to said predetermined width and being mounted on said top wall for movement between a position of rest closing said opening and an upright operative position projecting from said top wall and adapted to support the paper sheet after passage of the sheet between said printing means and said platen so that the sheet can be written upon after receiving an imprint; and means at the rear edge of said opening for pivotally mounting said support plate and including a resilient blade element located below said top wall and said opening and inclined downwardly toward said platen, said blade element terminating near said platen to deflect the paper away from said platen and toward said support plate in said upright operative position, said blade element resiliently engaging the lower edge of said support plate and biasing said plate toward the rear edge of said opening when said support plate is in said upright operative position.

4. A machine according to claim 3 wherein said blade element includes an angular plate having a bent transverse edge cooperating with the lower edge of said support plate during movement of the same to and from 'said upright operative position so that said angular plate resiliently yields.

References Cited UNITED STATES PATENTS 447,859 3/1891 Yost 197-143 776,017 11/1904 Felbel 197-181 X 953,571 3/1910 Zimdars 197-181 958,497 5/1910 Hess 197-143 1,317,760 10/1919 Seib 197-143 1,888,052 11/1932 Smith 197-181 1,958,645 5/1934 Smith 197-181 2,503,825 4/ 1950 Iambura 197-143 2,574,575 11/1951 MacIntyre 197-180 2,633,968 4/1953 Lippert 197-133 2,724,328 11/1955 Boyden et a1 197-133 X 2,807,348 9/1957 Chall et al 197-143 3,050,171 8/ 1962 Baurngartner 197-133 ROBERT E. PULFREY, Primary Examiner.

E. T. WRIGHT, Assistant Examiner.

Claims

1. IN A MACHINE SUCH AS A WRITING, PRINTING, OR CALCULATING MACHINE HAVING A FRAME WITH A PLATEN THEREIN ON WHICH THE PAPER BEING TREATED RESTS AND WHICH FRAME HAS AN OPENING IN THE TOP WALL THROUGH WHICH THE PAPER AND AT LEAST THE TOP OF THE PLATEN IS ACCESSIBLE; A SUPPORT PLATE CARRIED BY THE FRAME ABOVE SAID PLATEN AND IN AN INCLINED POSITION TO FORM A SUPPORT AND GUIDE FOR PAPER LEAVING THE PLATEN AND OF A FIRMNESS TO PERMIT THE PAPER ON THE PLATE TO BE WRITTEN UPON, SAID PLATE BEING AT LEAST AS WIDE AS THE PAPER BEING TREATED, SAID FRAME INCLUDING MEANS NEAR THE BACK EDGE OF SAID OPENING PIVOTALLY ENGAGING THE LOWER EDGE OF THE PLATE FOR PIVOTALLY SUPPORTING THE PLATE IN THE FRAME, AND ABUTMENT MEANS ON THE FRAME TO ENGAGE AND HALT SAID PLATE IN ITS SAID INCLINED POSITION, SAID MEANS NEAR THE BACK EDGE OF SAID OPENING INCLUDING A RESILIENT BLADE ELEMENT INCLINED DOWNWARDLY TOWARD SAID ROLLER AND TERMINATING NEAR THE POINT OF SEPARATION OF THE PAPER FROM THE ROLLER TO DEFLECT THE PAPER AWAY FROM THE ROLLER AND TOWARD SAID PLATE, SAID BLADE INCLUDING RESILIENT MEANS YIELDABLY ENGAGING THE LOWER EDGE OF SAID PLATE AND BIASING SAID PLATE TOWARD SAID ABUTMENT MEANS WHEN SAID PLATE IS IN ITS SAID INCLINED POSITION.