US2535733A - Printing device - Google Patents

Description

Dec. 26, 1950 w T, GOLLWITZER 2,535,733

PRINTING DEVICE Filed May 3l, 1946 Patented Dec. 26, 1950 This .invention Vrelates no printing -rcievi'ce's nf toria-en iorrapplfication iro a Trame whorit causing Vilzliiekinfiecnnprising airframe-Von which imprinting ainjury to fthe lcard 0r without siibsibalnijiailyre- *piaitezari Vanrindex lcarri @are fdetachanlyiretai-ned. {lucing the tiegree 1of se'curity with which fthe/'card The invention pertains more `particnilariy `toren )is retained on t-'he frame. `impr'onreinent in lrrlex cands nsed in-"ebnnecti0n 5 @Eher and further 'obeois 'of Jthe iznfe'sen:"int .with 'frames 'and plates yofvishe 4aforesaid@irai-acier *ventio'n will 'be apparent frorn fthe following fd'e- :smd yiufnertairrsalso "-to improvements inmeanshy fsorpt-"ion `anti cil-'aims fai-iii are illustrated in the which 'the association @offenen index -f'cardswith yaecornpanyin'g drawings Wii'icn-Iby =way of -1usretaining ie1ementszonframe miniersmay -be l ftration :show a preferred'embodiment and the maintained. W principles LYJheneof ani what I` now `consirier to be prhiting'idevicesinf-iiihe aforesaid foharae'ter iiheibest mode -in Whicn'l have eonsernplaftedapit inas'ioeenfcustomarrinthe past to form afname plying jthose princi-ples. Otheremooiimenis `of 'memben Vrior example, -ef :sheet -metaiwith upi'fhe invention embodying `tine same "or equivalent manning ings, oline-spring tongues and :beads principlesmay be u'sei and smiebural "changes which overlie iur-abut 'against the edges-of fprintif may 'be made -as 'desired `b'y lchose L'Skilled th'e Qing plaiesiand index cards iofretain-them in nrt `Without departing -rom'fhe present inven- :proper .association with-the `fran-le. Printing detion and lche purview of the appenleciaims.

vices of the aforesaid 'character mayinclude `one the drawings: i Vvor moneseparfalte printing platesand one-ormone a 1 Eis a plan 'View v0T raiprinting'device Vemindex aards. `Examples Tare the printing devices 2G laodving my invention;

disclosed in the patents to Mohler, 1,812.89@ '1Fi'g. `2 Ais a plan 'View roi 'an index eardnsdn r-gpaiented July 7, '149`31gBe1-thelsen, No. 19312947.4272, tnneeticin with the printing device `shown in pateneed October `16,-'1'933 and. :prior natentsl is- 1l; and

`sued to .the ,present inventor, such as, 'Patent No. iis a perspeeltive *View loowingtne marrpatenbeii April 26, '1938, and No. 2,132,412., paftin Fig. 1.

ented'oeltober 11, '1938. `lleferringinrs'i; to Eig i, there isdiseiosed a In the v'aioress'aiid patents.` cards and, 'nlatesof i'fing device of 'the genral GMT-acier showih various widths Vand `in various combinations 'are 3,() ethe aforesaii `l1; z'ifn'e'ri`1;s45o-Mohler.Berthelsenfanti detachably lretained on'frames o'ffthe 'aforesaid 'my prior-'Patents Nos. '2,036,865 and 2138011.41?. In character by-means o'f overhanging clips, spring "general-the printing'djeviee D's'hown in'Fig. 1 tongues, .and Vinturn'ed beads "formed from maeinhoies a frame ofxsheet material, preferably teriai of the vframe which 'beads 'overli'e Ia marini nneet metal; having an intnrne' bean 'along what of a'plac'e and a lmargin of an in'dexcard. :E- ma'v bef-termed the lower erige thereof shown Aat 'In devices ofthe 'aforesaid enara'cter; it sire- LB and-1an inturned upper bead UB along what `ouen'ciy,necessary ito ehange'piates andro chanee maybe-called the unner `edge of the frame. in

`index Vcards to correspon with changes matie in `auiiiiion to ftlrese beads, the treme shown 'in Fig. 1

'the plates. Inasmnch as 'these 'devices iare vsed has a pluraiity of iugsLl, L2 and LBstruck upvin large numb-ers a `great deal of time is 'eon- 4f() war-olly` from 'the'body q@hereof `andiJe-n; to `form sinned 'in making the necessary cham/es anni `in @verhanging `retaining devices respectively `'for inserting newfplates and cards intoiraines. printingplates?! and P2 and an infiexacard C. Itis, therefore, `an objectof 'the present inven- `To prevent movement ofthe printing plates Pl "tronto improvetneoesignof index'cardsan to inno-152 lengthwise between tnefretain'ing legs -reiajtesuch "designrojtne 'ioea'tion anti form of i "which *ibid them against 'the "frame, eDr'SSble card retaining evicesfongframesolthe aforesaid 'spring tonguesfs'iand's are-provie adje- ,character so as Viovmake 'it -easier von assemble the respective ends'o'f'ft'ne'irarne, es isweil v f'ca'rfi's 'with retainingfdevices 'on sirenfratr'nes. iinr'iers'tood in the artanii described `in detail" 'ix-further object -cf-'my invention'is 'to 'design Ehe aforesaid prior parents. "Thepla'tes Pi and retaining elements-on a frame and 'cooperating 5f P2 yare preifer'abiy ofsheet metal navingembossed elements cnthe index'card so as 'to provide for printing/characters thereon-which are noisnown jrhe efficient essernbiyf-and retention Aof V'oai-cis Vby herein loutere also wel! known in the art.

sucnretainne devices. The lower plate Plisre'tained on'theffraxne Mother-objector-myinvencion is-ftodesign-an by thefcobperation 'of' the lower beadALB-randthe index ea'rd'fin suon-ainannerthat i'cnay be 'iiisau 'ciipsror lugs `L'1 which overhang-thelupper @den of such plate. The upper plate PI is retained by clips or lugs L2, and as previously noted and well understood in the art the retaining devices STI and ST2 which are spring tongues struck from the body of the frame are arranged in this instance to permit insertion of either plate from either end of the frame serving normally however to restrict the plates against longitudinal movement but being readily depressible to permit removal of a plate and insertion of a new one whenever a change becomes necessary. Although I have shown an arrangement wherein two plates are associated with a frame, it will be understood that only one plate may be used, or three or more plates may be used if desired, the retaining devices being suitably arranf'ed. This is Well known in the art and forms no part of the present invention.

In order that the card C may bear data corresponding to the printing plates it is necessary, as well understood in the art, that the card be changed Whenever a plate to which it is related is changed, th-at is, if any alteration in subject matter is required on the card. As shown in Fig. 1 and also as shown in the prior patents mentioned above, index cards, such as C, are retained in assembled position with the frame and in spaced relation with respect to the printing plateor plates by the overhanging upjer bead UB and the clips or lugs L3. More than one index card might be used; a card for example might be placed in the general area occupied by Plate PI, the necessary retaining means leing suitably modified. However, the present form of my invention is particularly concerned with the card C which is retained at least in part by the upper bead UB.

Inasmuch as index cards, such as C, are normally made of paper and are easily torn, as when printing devices of this character are slid one over another, it is desirable that the card be retained closely against the surface of the frame so as to be less likely to be caught and damaged by projecting elements, as on other printing devices D. For this reason, the bead UB and the lugs or clips L3 usually closely overlie the card and assembly of such card with the frame involves sliding it along under these retaining devices. As indicated in the upper right corner of Fig. 1 the upper bead preferably ras a part RI which is flared or raised slightly higher than the remainder of the bead to faciitate insertion of a card thereunder so that the card can be slid along into position against a retaining clip or lug I I at the left end of the frame, as seen in this figure. Another retaining clip or lug I2 is provided at the right end, as viewed in Fig. 1, of the area to be occupied by the card C and this lug is preferably spaced irom the lug II a distance very slightly greater than the length of a card C.-to allow for expansion only, so that when the'card is assembled with the frame it will be closely retained against endvvise movement. The clips il and I2 preferably comprise substantially vertical portions I3 against which the ends of the card C may abut, and bent overhanging porfiorzs I4 which overlie the end portions and tend to hold them flat against the surface of the frame. The frame F of printing device D is preferably perforated as described in a copending application by Carl J. Hueber, Serial No. 583,050, filed March 16, 1945, now issued as Patent No. 2,456,943, patented December 21, 1948. These periorations are indicated at 20, Figs. 1, 3, and 5, and the card may be perforated opposite any one of said perforations to perform a control function. Hence it is desirable that the card C or CI be accurately located on the frame.

With cards of the type used in prior art, the assembly of a card with a frame involved considerable difficulty inasmuch as the closely overlying bead UB and the cooperating lugs L3 made it difcult to compress the card in length sufciently to insert the trailing end thereof under the overhanging retaining lug I2. Hence, in attempting to insert cards of the aforesaid character into frames provided with retaining devices, as just described, many cards have been damaged and considerable diiiiculty in assembly has been experienced with consequent added expense and loss of time.

In order to overcome the difficulties just mentioned above I provide a card C of modiiied form having a portion of one edge cut away so as to clear retaining devices which otherwise would prevent bucking of the card. Thus, as shown in Fig. 2, an intermediate portion of the upper margin of the card C is cut away to a width suicient to clear the bead UB and for a length along the margin suflicient to permit upward buckling of a part of the card C when forces tend-*ng to shorten said card are applied thereto. Hence, when the card is slid lengthwise of the retaining devices against the retaining member such as lug or clip II, further pressure applied against the trailing end of the card, at the right, as seen in Figsjl and 2, tending to push the card further to 'the"left, causes` the cut away portion of the card to buckle 'and rise above the bead UB. This condition is shown in Fig. 3. It lshould be particularly noted that the out away portion which I have indicated by the reference character 35 is dsposed at a point along the edge of the card C where no retaining device, such as L3, is arranged for cooperation at a directly opposing point on the lower edge of the card. By this construction, buckling of the card is easily accomplshed and this is done by continuing to push on the trailing end of the card C after the advance end thereof, shown at the left in the drawings, has been stopped by the retaining clip or lug II. Pushing is continued until the trailing end of the card clears clip or lug l2 and the card is buckled as shown in Fig. 3. Inasmuch as the degree of buckling required to clear` the overhanging elements Ill of the lug I2 is not very great the inherent resilience of the stock of which card C is made is sufficient to restore it to its normal dat condition where it lies against the framewithout any appreciable permanent deformation. .I-lence, al-

though the card is designed to be thus .buckled on insertion the eiect of this buckling -is not retained in the card after assembly with the frame and no difficulty oi the .character mentioned above is likely to result from catching of the card on parts of other printing devices. It

`will of course be understood that the cut out portion may be formed at various locations along the upper edge of the card C and that the could not be accomplished by merely displacing the card C to the right or to the left.

It will also be understood that my invention might be used with various types of printing devices such as those shown in the aforesaid patents or modications thereof, having various arrangements of printing plates and cards thereon. In particular my invention might be applied, if desired to printing devices utilizing thin edged printing plates and low overlying retaining devices therefor, as disclosed for example in the copending application led by Carl J. Hueber, Serial No. 450,320, led July 9, 1942, now issued as Patent No. 2,425,323, patented August 12,1947.

Hence, while I have illustrated and described the preferred embodiment of my invention, it is to be understood that this is capable of Variation and modification and I, therefore, do not wish to be limited to the precise details set forth, but desire to avail myself of such changes and alterations as fall within the purview of the following claims.

Iclaim:

1. In a printing device, a rectangular frame made from sheet metal and embodying means for securing a printing plate thereon and also including card-mounting means defining a recn tangular card receiving area and comprising a reversely bent retaining bead extended along one edge of said frame to afford a continuous overhanging card retaining member along one side of said area, overhanging retaining clips at opposite ends of said area, and a plurality of other overhanging retaining clips disposed along the opposite side of said area with a substantial space between at least two of said other clips, and an index card of iiexible and resilient sheet material of a form corresponding substantially with said area and affording rst and second side edges adapted to be positioned respectively beneath said retaining bead and said other clips and having a portion of said iirst side edge cut away opposite one of said spaces between said other clips so as to enable said card to be buckled momentarily in an endwise direction and upwardly past said bead to thereby reduce the effecn tive length of the card and enable the same to be inserted under the overhanging clips at the ends of said area.

2. In a printing device that has a rectangular frame made from sheet metal and embodies means for securing a printing plate thereon and also includes card-retaining means dening a rectangular card receiving area and comprises a reversely bent retaining bead extended along one edge of said frame to aord a continuous overhanging card retaining member along one side of said area, overhanging retaining clips at opposite ends of said area, and a plurality of other overhanging retaining clips disposed along the opposite side of said area with a substantial space between at least two of said other clips, the combination of an index card being made from flexible and resilient sheet material of a form corresponding substantially with such area and affording first and second side edges adapted to be positioned respectively beneath such retaining bead and such other clips and having a portion of said first side edge cut away in a position arranged to be opposite one of such spaces between such other clips so as to enable said card to be buckled momentarily in an endwise direction and upwardly past such bead to thereby reduce the effective length of the card and enable the same to be inserted under the overhanging clips at the ends of such area. WALTER T. GOLLWITZER.

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

UNITED STATES PATENTS Number Name Date 1,026,250 Duncan May 14, 1912 1,026,251 Duncan May 14, 1912 1,484,234 Prentiss Feb. 19, 1924 1,539,206 Rand May 26, 1925 1,654,040 Duncan Dec. 27, 1927 1,801,078 Grinin Apr. 14, 1931 1,843,111 Dawson Feb. 2, 1932 2,132,412 Gollwitzer Oct- 11, 1938 2,254,889 Doebler Sept. 2, 1941 2,261,993 Gollwitzer Nov. 11, 1941 2,423,705 Hueber July 8, 1947 FOREIGN PATENTS Number Country Date 477,074 Great Britain Dec. 21, 1937

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