US1602285A

US1602285A - Manifolding apparatus

Info

Publication number: US1602285A
Application number: US121977A
Authority: US
Inventors: Schaber Fritz
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-12-29
Filing date: 1926-07-12
Publication date: 1926-10-05
Anticipated expiration: 1943-10-05

Description

l 0a. 5,1926.I 1,602,285

F. SCHABER MANIFQLDING APPARATUS l Filed July 12, 1926 2 Sheets-Sheet l Zin M'en fr:

F. scHBER l MAMFOLDING APPARATUS y Filed July 12. 192e 2 Sheets-sheet g oct. 5,1926. 1,602,285

` I [i @i y V Patented oa. 5, 192e.

UITE

razas MANIFOLDING APPARATUS.

Application led July 12, 1926, Serial No. 121,977, and in Germany December 29, 1923.

In the so called writing through processes or manifolding processes, in which the entries to be made are manifolded or written through on to loose sheets, these have heretofore been laid on a writin plate having pins above it, over which t e correspondingly perforated sheets and the manifolding, (carbon) paper are laid and firmly clamped by a bar which can be raised therefrom as and when desired. Other types of writing plates employ clamping springslwhich press upon ,the plate.

The present invention relates to a writing plate which is distinguished by its simple and durable construction and which permits of the use of accounting sheets of any kind, even those without holes, without the necessity of lemploying a spring which readily become fatigued or act unevenly. The essential feature of the invention is that the interchangeable sheets are clamped in position by means of a vertically guided clamping bar by a simple screwing movement by clamping screws, while a second loading bar which acts by its weight holds down the sheets which remain permanently on the writing plate such as the manifolding (carbon) paper for example. The screw threads of the clamping screws may therefore in this apparatus be of so rapid a pitch that even a slight rotation suffices to release or clamp the sheets. The two bars may be conveniently placed by means of holes or perforations over pins on the writing plate and so be guided in a straight line. Furthermore there is-provided on the right hand side of the writing plate a guide bar which guides and holds in place a rest or support for the hand and also serves for the layin on of forms. For certain purpose this gar lies only with its raised ends on the platey and leaves a slit freebetween itself and the writing plate in the middle so that such sheets or leaves can be passed therethrough as are wider than the writing plate or leaves of books which cannot be removed therefrom.

The subject matter of the invention is' shownl in the accompanying drawing which illustrates some construct-ional forms thereof.

Figures l to 4 shovi'7 the whole of the manifolding apparatus, Fig. 1 being a plan View and Figs. 2 to 4 being-'side views.

Figure 5 is a cross section through the weilghting bar and clamping bar on a 'larger sca e. v

Figure 6 is a longitudinal section through the end of weighted bar shown inrFigure l on a larger scale.

tween them and lirmly held with their lines in accurate register by devices which substantially constitute the present invention. Accordingly the sheets are held in place as shown in Figures 1 to 6, and 8 and 9 by a clamping bar d which lies loosely on the writing plate and is guided by means of ixedpins over which it is laid by means of holes or openings. As guide pins. either special pins e -may be used (see Figures 1 and 3) or the bolts p of the screw nuts g may be used bymeans of-which as will be hereinafter described, the clamping bar d is clamped down upon the writing plate (see Figure 5). The clamping bar al may conveniently be raised from the writing plate (1 parallel therewith by springs f so that the accounting and manifolding sheets can be conveniently pushed underneathit when the clamping bar is loosened without having to hold it up by the hand. In order to hold the interchangeable sheets in place with their lines in accurate register without further assistance a stop is provided for the sheets which may consists for example of angle pieces g specially arranged behind the clamping bar and adjustable for example transversely, (see Figure 8). In order to avoid separate parts the stops may also be formed by the guidepins p or c of the apparatus consists of the usualM clamping bar (see Figures 1 to 4). The carbon sheet which naturally does not need to be changed at every fresh entry, and the reinsertion of which every time with the interchanged sheets would mean a loss of time which must be avoided, is held in place according to the present invention by means of special parts independently of the clamping bar (Z.

This holding device for the carbon sheet consists either of pins L mounted on the writing plate and over' which the carbon sheet is placed by a corresponding perforation or of a weighted bar la, which is guided in a straight line on pins Z on the plate and at the same time has its upward movement so limited by studs Z1, that the weighting bar can be raised just so high by means of a handle m that thecarbon4 sheet can be pushed underneath the bar. The weighted bar 7c may with advantage be so constructed that its entire. under surface does not bear upon the writing plate but` only its knife-like edge or edge parts n on the right hand side while on thel opposite side' only a support nl corresponding to the height of theedges n is provided so that the weighted bar shall not grip by bearing onesidedly on its guide pins (see Figure 5). The clamping edges a may be conveniently slightly serrated and the surface with which itcontacts upon the writing plate also provided with teeth or roughened, (see Figure 7). 'In like manner' the clamping bar d may also be so constructed.

The holding of the interchangeable sheets 'b in placeis effected according to this invention by a screw-like movement and through the medium of the clamping bar a1- ready `described above. According to the gure's there are provided herefor screw bolts p of suitably rapid pitch of thread attached to the writing plate a or passed up through it from below and which for example pass through the clampingbar ol on to which is screwed a clamping nut g which bears upon the clamping bar from above. Instead of a fixed screw bolt and a nut g screwed on to it I may obviously also use a screw with a milled head which is screwed into the writing plate or into a nut fixed thereto. The number and pitch of the threads may be any that is desired and for example I may also use a short catch like a bayonet joint as shown in Figure 9. In this case a pin t, projecting on both sides for eX- ample is pushed through the bolt s and .in the nut u there are provided one or two 'slots lv of a curved shape so that the sheets can be gripped or released by a screw-like movement. To prevent lthe sheets b from becoming soiled e. g. by a nail, the pencil or other hard object being unintentionally drawn over them and also to prevent any rucki'ng up of the top loose sheet when writvclamping bar ing on it an underlay fw 'for the hand is provided to hold and guide in a guide bar m on the right hand side of the writing plate a and parallel with the clamping underlay/w for the hand is so wide that it fits with a slight amount of clearance just between the clamping bar d and the guide bar and is thus both guided and kept in place. According to the invention there is hollowed out between the writing plate a and the guide bar a-slot y as the guide bar only bearsat its raised ends and lies like a bridge over thewriting plate, so that sheets can be pushed through this slot which are wider than the space between the clamping bar andthe guide bar or the leaves of a book which cannot be removed therefrom.

When it is desired to lay sheets on loosely only without loosening the clamping bar l and lbring them up against the bar the sheets slide very easily between the clamping bar and the writing plate. According to this invention this disadvantage can be easily overcome by. arranging small raised portions at short intervals in front of the clamping bar d (see Figure 5) which lift the sheet laid on so that it hits up against the. clamping bar but cannot pass under it. These raised portions may conveniently be constituted by small pins e which are riveted into the writing plate and the raised heads el of which project beyond it.

l I claim:-

1. A maniiolding device comprising a writing plate; a clamping bar adapted to hold the sheets on the late; a plurality of pins for guiding and olding said bar; a plurality of pins :tor a carbon sheet; and a weighted bar guided on said second-named pins for holding the carbon sheet on the plate.

2. .A manifolding device comprising a writing plate; a clamping bar adapted to holdl the sheets on the plate; a plurality of threaded pins for guiding/andholding said bar; a nut for each pin for securing'the sheets tightly against the plate; a plurality of pins for a carbon sheet; and a weighted bar guided on said second-named pins for holding the carbon sheet on the plate.

3. A manifolding device comprising a writing plate; a clamping bar adapted to hold the sheets on the plate; a plurality of threaded pins for guiding and holding said bar; a plurality of pins for a carbon sheet;

a weighted bar guided on said second-named pins for holding the carbon sheeton thel plete; and a plurality of springs for the in' order to raise and hold the bar in an elevated position from the plate to move the sheets` under said plate.

4. A manifolding device comprising a writing plate; a clamping bar adapted to hold the sheets on the plate; a plurality of threaded pins for guiding and holding said bar d. This bar; a plurality of pins for a carbon sheet; a Weighted bar guided on `said secondnamed pins for holding the carbon sheet on the plate; a nut for each pin for securing the sheets tightly against the plate; and a plurality of springs for the clamping bar in order to raise and .hold the barin an elevated position from the plate When said nuts are loosened to move the sheets under the plate.

5. A manifolding device comprising a writing plate; a clamping bar adapted to hold the sheets on the plate; a plurality of studded pins; anda Weighted bar guided on said pins for holdinga carbon' sheet on the plate; said Weighted bar being limited in its upward movement from the plate by the studded pins.

6. A manifolding device comprising a Writing plate; a clamping bar adapted to hold the sheetson the plate; a plurality of studded pins; a weighted bar guided on said pins for holding a carbon sheet on the plate, said Weighted bai' being limited in its upward movement from the plate by the 'studded pins; and a handle on said Weighted bar for raising it from the plate.

7. A manifolding device comprising a writing plate; aV clampingbar adapted to hold the sheets on the plate; a plurality of threaded pins for guiding and hcldingfsaid barra plurality of studded pins; a Weighted bar guided on said pins forholding a carbon sheet on the plate, said weighted bar beinglimited in its upward movement from the plate by the stud-ded pins; and a handle on said Weighted bar for raising it from the plate.- y f 8. A manifolding device comprising a writing plate; a clamping bar adapted to hold the sheets on the plate; Ia plurality of threaded pins for guiding and holding said bar;la plurality of studded pins; a nut for each pin for securing the sheets tightly against the plate; a weighted bar guided on said pins -for hol-ding a carbon sheet on the plate, said Weighted bar being limited inits upwardmovementfrom the plate by the studded pins; and a handle on said Weighted bar for raisin@ it from the plate.

9. A maniiblding device comprisin 'a writing plate; a .clamping bar adapte to hold the sheets on the plate; a plurality of threaded Pins for guiding and holding said bar; a plurality of studded pins; a nut for each pin for' Securing the, sheets tightly against the plate' a plurality of springs for tle clamping bar in order to raise and: hold the bar in an elevated position from the plate to move the sheets under said plate; a

' weighted bar guided on said pins for holding a carbon sheet on the plate, said weighted bar being limited in its upward movement from the plate by the studded pins; and a handle on said-Weighted bar for raising it from the plate.

In testimony whereof I affix my signature.

FRITZ soHABER.