US2034840A - Apparatus for issuing gummed strip paper suitable for use for packing and like purposes - Google Patents

Description

March 24, 1936. L SMITH 2,034,840

APPARATUS FOR ISSUING GUMMED STRIP PAPER SUITABLE FOR USE FOR PACKING AND LIKE PURPOSES Filed Dec. l5, 1954 2 Sheets-Sheet 1 APPARATUS FOR ISSUINQGUMMED STRIP PAPER SUITABLE FOR USE FOR PACKING AND LIKE PURPQSES Filed D60. 13, 1934 L SMITH 2 Sheets-Sheet 2 Patented Mar. 24, 1936 NTE STAES IEE APPARATUS FOR ISSUING GUMIVIED STRIP PAPER SUITABLE FOR USE FOR PACKING AND LIKE PURPOSES Application December 13, 1934, Serial No. 757,386 In Great Britain December 20, 1933 9 Claims.

This invention relates to apparatus for issuing gummed strip paper, suitable for use for packing and like purposes and more particularly to such apparatus of the kind. wherein a casing carries one or more rolls of strip paper, one or more printing rollers for printing predetermined advertising or other matter upon said strip paper, means for applying gum to said paper, or alternatively (where the paper is supplied already gummed) means for damping the gummed side of said paper, and means for facilitating the breaking or cutting off of issued gummed and printed paper, the whole arrangement being such that the paper from the roll or rolls is passed through the printing roller portion of the apparatus to the damping means and to the means for facilitating cutting or breaking off of the paper.

In many forms of known apparatus of the kind referred to the construction is such that the paper is always in contact with the printing roller or rollers, and there is, accordingly, the difiiculty that the gummed paper may stick to the said printing roller or rollers (after a period in which no paper is drawn ofi") due to the fact that said gummed paper has remained for a substantial time in more or less firm pressure contact with the said roller or rollers.

A known expedient for obviating this difiiculty resides in so arranging the printing roller or rollers as to be movable when desired out of pressure contact with the paper.

The present invention provides improved apparatus of the kind referred to and embodying the expedient mentioned in the preceding paragraph. The main object of the invention is to embody the said expedient in apparatus which is cheaper, simpler than known apparatus embodying the said expedient and which is such that the printing roller or rollers can be easily and quickly removed from the apparatus as a whole and replaced by a roller or rollers bearing other advertising or like matter.

According to this invention an apparatus of the kind referred to and comprising a printing roller or rollers which is or are movably mounted in such manner as to be movable when desired out of pressure contact with the paper is characterized in that the said roller or rollers is or are freely rotatably mounted upon a spring biased spindle which is provided with projecting members spaced apart upon said spindle and adapted to engage fixed abutment members, means being provided for rotating said spindle when desired so that said projecting members may be brought to engage said abutment members and thereby lift said spindle against spring bias.

The invention is illustrated in the accompanying drawings which show one form of construction. In the drawings, Figure 1 is an elevation, partly in section; Figure 2 is a detail view; Figure 3 is a sectional elevation taken centrally; Figure 4 is an elevation to a reduced scale as compared to the other figures; and Figure 5 is an end view in section, taken on a line through the centre of the printing roller.

Referring to the drawings, the apparatus therein shown for issuing gummed strip paper comprises a casing I within which is a frame which carries a strip paper roll mechanism, a printing mechanism, and a gum damping mechanism, which latter preferably incorporates means for cutting off paper which has been issued.

The strip paper roll mechanism consists simply of a spindle 2 preferably arranged to be adjustable in position within the casing, this spindle being fixed and serving as the axis of one or more rolls (as shown, one roll 3) of gummed strip paper, the number of rolls depending upon requirements. The arrangement is such that when paper strip is pulled from the roll, the said roll will rotate upon the spindle. In order to prevent the unrolling of too much paper when the strip is pulled, one or more spring plates or any suitable braking means (not shown) may be provided to impose resistance against rotation of the roll or rolls, or (as is the case in the illustrated embodiment) the roll may be of suflicient size torub against the side walls of the frame and thus impose frictional resistance.

The printing mechanism comprises one or more type wheels l (as shown, one type wheel) made of wood or other suitable material and having a periphery 5 of rubber type, the said type wheel (or wheels) being mounted upon a spindle 6 which passes freely through a central hole or holes in the wooden or other type wheel or wheels. This spindle, which will hereinafter be termed the type spindle passes through vertical slots 1 in parallel vertical carrier plates 23 forming part of the frame and between which the type wheel or wheels is or are positioned, these vertical carrier plates serving as the main carrier members for the whole apparatus and also having slots 9 through which passes the spindle for the paper roll or rolls. Carried externally on the carrier plates and inside the side walls of the casing l (the carrier plates are spaced short distances from the said walls of the casing) are two abutment members lil hereinafter to be termed reaction members, and each co-operating with the type spindle in manner to be described later to give movement of the type wheel or wheels upwards or downwards. These reaction members I 0 consist of short approximately horizontal arcuate plates fixed to the carrier plates 8 at or near the bottoms of the slots I for the type spindle, the ends of these plates ll! being curved upwardly as shown. The type spindle is formed with or provided with a pair of radial parallel pins ll which are separated from one another by a distance approximately equal to the total over-all length of the type wheels or wheels plus the thickness of the carrier plates 8. One end of the type spindle projects through one carrier plate and one side of the casing and is provided with an operating lever l2 by which the type spindle may be rotated. The arrangement of the reaction members I!) relative to the type spindle is such that when the type spindle is rotated into such a position that the pins l l projecting therefrom point downwardly, these pins engage the arcuate faces of the reaction members l0 and thus compel the type wheel or wheels to be lifted bodily upwards their maximum height being attained when the pins II] are pointing vertically downwards. Preferably the reaction members ID are provided with depressions Illa adapted to be engaged by the ends of the pins when they are pointing vertically downwards so that a person operating the lever at the end of the type spindle will be informed by feel when the type wheels are fully lifted. These depressions will, of course, also serve to retain the type wheel or wheels in their maximum lifted position against vibration.

The type spindle is normally biased downwardly by wire springs l 3 fixed at M and. IE to the carrier plates 8 (e. g. by means of tabs or lugs pressed out of the said plates) and riding upon the type spindle, these springs being formed with ends l6 convenient to be grasped by the fingers. The carrier plates are formed on their external faces with pressed out tongues or other support members I! so positioned that when the springs are lifted from the type spindle they may be rested upon these tongues or the like. When the springs are thus rendered inoperative to hold down the type spindle, the said spindle complete with its handle and type wheel or wheels may be withdrawn by lifting it upward through the slots 7 in the carrier plates 8 and the corresponding slot shown in one wall of the casing I. It should be stated that the case is formed with a hinged lid [8 which should, of course, be opened to permit withdrawal of the type spindle. The pins H in the type spindle are shown as screwed therein and it will be seen that by unscrewing one of these pins after removal of the type spindle from the machine, the type wheel or wheels may be withdrawn and a different wheel or wheels substituted.

The inking mechanism for the type wheel may consist of the usual inking roller or rollers but, as shown, a somewhat cheaper form of inking mechanism may be used this form consisting of a pad H! of ink-impregnated felt or the like which is carried in a metal pressing 2G. The carrier plates 8 are formed with suitable slots 2| adapted to receive the ends of a flat spring 22 fixed to the back of the pressing 20, the slots 2! being so positioned and arranged at such an angle that when the ends of the spring 22 are entered into the said slots 2| the inking felt l9 bears approximately tangentially against the type wheel or wheels. To withdraw the inking felt and substitute another, e. g. one of a different colour, it is merely necessary to lift the spring 22 out of the slots 2i and remove the felt in its pressing 20 out of the machine (after, of course, having opened the lid).

The paper, after passing from the roll or rolls, passes under and over suitable guides 23, then round a fraction of the circular periphery of the type wheel or wheels, and then over another guide 23, the guides being so positioned that when the .type Wheel or wheels are in their most downwardly position, the paper engages a suitable fraction of the said periphery.

It will be seen, therefore, with a machine as so far described, if the end of the paper projecting beyond the last guide 23 be pulled, the paper will be drawn from the roll or rolls and under the type wheel or wheels rotating the type wheel or wheels and being accordingly printed thereby. When the machine is not required to be in use, the lever at the end of the type spindle is operated and the type wheel or wheels is or are thereby lifted so as to be free of the paper. After passing under the type wheel or wheels, the paper proceeds, gummed face downwards, across a wetting brush or felt 25 arranged in a water bath 25 and over a guillotine or saw edge 26 by which it may be cut off. If desired, and as shown, means may be provided for drawing off paper by operation of a handle instead of merely pulling upon the paper with the fingers. In the illustrated case the said means comprise friction rollers (rubber covered) 21 which are held in contact with one another by springs 28 one of said rollers being adapted to be rotated by a handle 29,-

It will be appreciated that when carrying out this invention it is not necessary to provide any bed against which the type wheel or wheels press the paper when printing, for the tension which necessarily must be applied to the paper to cause it to be withdrawn from the machine will cause the paper to press against the type wheel or wheels.

What I claim is:-

1. In apparatus of the kind referred to, the combination of a frame; a spindle; at least one printing roller mounted for rotation on said spindle and normally positioned to engage paper for printing thereon; means mounting said spindle on said frame for rotation and for movements together with the roller towards and away from the paper; spaced projecting members on said spindle; and fixed abutment members with which said projecting members are adapted to engage when the spindle is rotated and being so positioned that, after engagement of the projecting members with the abutments, further rotation of the spindle will move the spindle and roller away from the paper.

2. The combination as set forth in claim 1 and in which the frame is provided with openended slots in which the spindle is mounted, the

spindle being removable from the slots through their open ends. a

3. The combination as set forth in claim 1 and in which the projecting members on the spindlecomprise parallel radial studs or pins having threaded connection with the spindle.

4. The combination as set forth in claim 1 and in which the frame is provided with open-ended slots through which the spindle extends, the spindle being removable through the open ends of the slots, and the projecting members on the spindle comprising parallel radial studs or pins.

5. The combination as set forth in claim 1 in dle is in such position that the roller is out of contact with the paper, said projecting members comprising parallel radial studs or pins.

8. The combination as set forth in claim 1 and including stationary inking means positioned and mounted. to press substantially tangentially on the roller.

9. The combination as set forth in claim 1 and including spring bias means for biasing the spindle towards the abutment members.

LOUIS SMITH.

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