US1858479A - Printing device - Google Patents

Description

May 17, 1932. c. cHlsHoLM PRINTING DEVICE Filed July 26. 1929 3 Sheets-Sheet l IIIIHHHIIIHVIIIIIIlllll llllllllllll C. C JHISHOLM PRINTING DEVICE s sheets-sheet 2 Filed July 25. 1929 May 17, 1932. c. cHlsHoLM PRINTING DEVICE 3 Sheets-Sheet 3 Filled July 26. 1929 Ta Gr.16

5mm if Patented May 17, 1932 un.ifire?.n

asians www..

' CLIFTON CHSHOLM, OF CLEVELAND, OHIO, ASSIGNOR, BY .ASSGNVIEBTTE7 TO AMERICAN MULTGRAPE CO., OF WILMINGTON, EELAWARE, A COREORATION OF DELAVARE Application filed July 26,

This invention `relates to a printing deice of the :general type wherein the various printing members, such as embossed strips, aremounted on arotary drum and coact with a suitable platen, especially when such a device is in a lsimple form adapted for otlice printing. In many such instances the printing device is used for listing and other similar purposes wherein it is desired to replace a small number of the .printing members or embossed strips, to Vbring the form up to date.

In many instances, such as where the device is used for the listing of names, for example as in telephone directories wherein the data l is constantly changing, it is necessary to have the form constructed in such manner that certain of the printing members may be readily removed and replaced to permit corrections to Vbe made in the form from time to time.

An object of the invention is to provide a simple device whereby a form sheet, especially one comprising a list or other such data may readily be assembled.

Another object-is to provide an improved printing form adapted to carry line units in the nature of individual printing strips wherein any one ofthe individual strips may' `be readily replaced without necessitating the 39 removal of the other strips.

A further object is to provide a simple device wherein raised printing members, such as embossed strips maybe mounted on a printing form, in such Va manner that such strips may readily be removedand replaced without disorganizing the continuity'or or-V.

der of the remaining strips.

A further object is to provide a printing I device wherein a form, such as a list, may be t9 set up composed of printingV members such as embossed strips in column formations. Y In carrying out the invention I prefer to provide a suitable rotary drum having a removable segment adapted to carry the print- 5 ing lines, which segment may be embraced by an inking ribbon carried by spools mounted in the drinn, and such device may be adapted to coact with a rotary platen as the drum-is rotated. The device accordingly parta-kes of the character of a multigraph printing :rialNfrriveV nnvrcn l 192e. seri'ai NQ. 351,162.

machine, except that instead of mounting .the

printing strips directly on the segment I- mount each printing strip on Van-individual holder which in turn is adapted toV be supported and locked in position on the segment. The individual'holders and their respective printingstrips may be divided into column format-ion by means of flat strips of less'height than theholders, which flat strips extend arcuately about the surface of the segment and are ,provided with o-verhanging ribs adapted Ato engage the printing fstrip holders'and retain them in position on the segmentjf By'this means I am able to build upon the segment at-abular printing form accurately aligned, as well as one in which anyone or more of the individual printing strips or vlines anay readily be removed without'V necessitating ythe. removal or 'displacement of th-eremaining strips. y

The features above referredto and other objects of my'inve'nt-ion lwill 'be hereinafter more :fully explained and becomemore fullyy apparentfrom the following description of the Venflbodiment illustrated in the drawings. The essential characteristics thereof are summarized Vin the`V claims.

In the drawings, Figll is aside elevation of a printing device'fcarrying my preferred form of printing strip and holdertherefor; Fig. 2 is a cross section of the same as indicated'byV the line "2-2 on Fig'l; Fig. 3 is-a radialsectionindicated by thelines 3 3 on f Fig Figa isa radial section lof the segment illustrating retainingmeans vfor the printing strip holders, the position of whichxis indicated bythe lines 4 4 of Fig. 2; Fig. '5 is aperspective on an enlarged scale of a. printing strip with its'associ'ated holder, a portion of theprinting'strip being broken away; Fig. V6 is a vertical crosssection indicated by the line 6-6 in Fig. 5.; Fig. Z is a development of the segment showing a :tabularprinting form mounted thereon` and illustrating the manner in which a single line orstrip may beremoved. As thisA igurelindicates itis well withinthe Aspirit of ythis invention that the strips"- may tbe E mounted on suitable holders which in turn maybexcarriedbya flat "form for use in vconnection with standardflat bed printing mechanisms. Fig. 8 is a perspective of one of the locking members; Fig. 9 is a perspective looking at the bottom side of another type of the locking member for the form.

The print-ing device generally comprises as shown in Figs. 1 to 3 inclusive, a frame 10, a main shaft 11 journalled therein, and a crank 12 for rotating the shaft, a pair of skeleton disks 13 which are secured to the. shaft and are connected together by crossV rods 14. The crank is shown rigidly secured to the shaft 11 and is adapted to drive aY pinion 15 which meshes with the gear 16, rigidly,

place on the segment to retain suitable print-V ing strips as willhereinafter be described. The segment is also provided on its interior with transverse webs 23. Y Near the ends of the inner surface of the cylindrical wall the segment bears on the rot-ary disks 13 while the webs 23 may bear on the cross rods 14. rI he segment may be held in place by spring hooks 30 pivoted tothe segment by means of a rod31 extending across the webs and at its other end springing aroundA the shaft 11.

rlhe end disks 13 of the skeleton drum are shown as carrying a pair of ribbon spools 40 from which an inking ribbon 41 extends y about the printing form. Such form coacts with a rotary platen 45 which is mounted in the frame 12 and driven through by meansv of the gearing l5 and 16. The machine is accordingly adapted, when the crank is rotated, to print on paper fed between the drum and platen. l

The printing members comprise embossed strips'50 having a single rowof upwardly extending characters 51 thereon and having the edges 52 of the strips extending away fromrthe embossed surface and inclining inwardly toward each other. Y

The embossed strips when produced are preferably straight and are made of a comparatively soft metal such as aluminum and the characters' thereon are accurately posi-- tionedso that the characters of one line may align with those of` another, when the re- Y spective strips are aligned, which is very v gaged by the down turned `sides 52 of the embossed strips.. The supporting member Lemme has a web 'portion 65 which joins the head to a suitable base portion 62 slightly greater in width than the printing strip so as to accurately space the strips and thereby the printed lines. The ends of the strip holders or supporting members extend somewhat beyond the embossed strip 50 and are cut away at the top thereof to form suitable lips 63 which' are adapted to be engaged by suitable means mounted on the segment, such as the overhanging ribs 24.

To .retain the embossed strips and their associated holding members on the segment I prefer to mount the arcuate members 24 on the segment by means of suitable cap screws asat 25. The members 24 have overhanging lips 66 adapted to overlie the ends 63 of the strip holders and retain the latterI in contact with the outer surface of the segment. YThere may be a series of these arcuate members 24; as illustrated in Figs. 1 and 7 I have shown three such members, in which instance the segment is accordingly divided thereby into two columns each of which is adapted to carry a plurality of strip holders and their associated printing strips.

. To retain the strips and their associated holders in position ony the segment in such a manner as to prevent the shifting of the holders kon the segment I mount at one end of the segment suitable retaining blocks 70 each of which lie between two of the arcuate members 24 and extend substantially from one memberto the other. The blocks 70 are guided against angular movement on the segment by means of a boss portion 7l which is adapted to coact with the arcuate recesses 2O formed in the segment. To secure the retaining' member 70 in position on the drum I prefer to employ suitable arcuate wedge blocks 73 adapted to coact with the dovetailed recesses 21 in the segment. Suitable screws'v 7 5, which pass freely through openings 7 6 in the member 70, are adapted to coact with the wedges 73 and draw the latter 'tight against the converging sides of the arcuate grooves or recesses 21 ofthe segment, thereby securely clamping the members 70 in position on the drum. It will be noted that, as these members are guided on the segment, they will serve to properly align thev strip holders and theirv associa-ted embossed print-- ing strips. f

The holders carrying the embossed strips .ng

are then laid in position on the drum much as indicated by the dotted lines. at 60aion Fig.

7 wherein one of the extending. ears 63 of a Vholder 60 has been inserted beneath the ex'- ears 63 are engaged by the overhanging projections 66 on the respective members 24.

To permit a comparatively tight t between the portion 63 of the holders and the retaining member 24 the strip and associated holder may be slightly flexible to permit the unit to conform to the contour of the segment as the unit is swung into position.

To securely lock a number of printing strips on the segment I provide suitable blocks or locking lugs 80 as illustrated in Fig. 8 which have head portions 81 adapted to lie on the outer surface of the segment and which are lower in height than the printing strip supporting members 60 and which are adapted to engage sides 64 of the base of a supporting holder and retain the holder in position against the baseneXt adjacent holder 60 and so on until the block 70 is reached. The locking member has a suitable depending portion 82 adapted to coact with vertical portions il@ of the recesses 2l thereby serving to guide the block 8O against angular' displacement on the form. A suitable 'wedge blocl: S3, formed similar to theV block 73 which cooperates with the member "O, is used tor locking the member 8O in position on the segment. Suitable screws such as illustrated at 85 which pass freely through openings 81"; in the members 80 and coact with threaded portions 87 in wedge blocks 83 serve to loclr the member 8O and the grooved recesses 21.

The printing strips and their associated holders when assembled on the segment lie substantially in the position as illustrated by the lett hand portion of the segment in Fig. 7. However, when it is desired to remove any one of the individual strips and its associated holder the clamping blocks 80 are slightly loosened from the segment and slid away from the holders to a position indicated at 80a in Fig. 7. It desired, the blocks 8O may be clamped in such position to prevent their inadvertent displacement. The printing strips between the holders and the strip which is to be removed from the segment are then shoved into position against the blocks 80a, as indicated at 600, one end of the strip, which is desired to be removed, is then swung till the strip reaches approximately. the position shown by dotted lines at 60?) in Fig. 7, in which position the holder 60 has become tree from one of the arcuate retaining members 24. The strip may then be slid laterally, thereby removing the strip from the remaining retaining member 24 and removing it from the segment. The strip may then be replaced with another, as heretofore described, or omitted entirely as desired. The operator may then move the strips 600 to a position where they contact with the balance of the strips and replace the blocks 80 in position to hold the strips rigidly against the block 70.

It will be seen from the foregoing descriptionthat I have provided a printing device which is adapted for use in connection with the printing of forms such as lists and the like, especially where it is desired to accurately align a plurality of lines in column formations and in which printng device any one or more of the individual lines of printing strips may be removed from the device and changed without necessitating the i'emoval or disarrangement of the remaining strips or lines.

v I claim: f 4

l. In a printing device the combination of a long, narrow7 base strip having an. upwardly extending rigid retaining device thereon, an embossed printing strip shorter than the base strip and having inwardly projecting edge flanges whereby the printing strip may be. mount-ed on the base strip with the ends 'of the base strip extending beyond the printing strip and an arcuate printing member having parallel arcuate ledges overhanging the projecting ends of the base strip but with suliicient clearance to enable the printing devices to Vbe skewed free from the ledges, said ledges forming abutinents for the printing strips. f

2. In a printing device, the combination of an arcuate segment, a plurality of embossed printing character strips, individual holders to support said strips, one holder for each strip., means comprising arcuate members secured to said segment adapted to retain the holders in contact with the outer periphery of said segmentsaid means adapted to restrain theV strips from endwise movement, means associated with said segment adapted to retain the holders in contact with each other, both of said means being adapted to permit the removal of any one of said holders independently of the remaining holders.

3. In a printing device the combination with a segment having parallel arcuate strips thereon provided with overhanging portions, of a plurality of embossed printing strips having inwardly flanged edges, holders for said strips, said holders having head portions adapted to b-e embraced by the flangededges of said printing strips, portions of said holders adapted to underlie said overhanging portions of said arcuate strips to retain them in contact with Y the form, while the arcuate strips provide abutments preventing removal of the embossed strips lengthwise without preventing skewing of the printing devices, and means abutting said holders adapted to retain them in contact with each other.

4e. In a printing device, the combination of an. arcuate segment, a plurality of embossed rinting character strips, an individual older associated with each strip, means extending arcuately on the segment adapted to retain the holders in contact with the seg- `ment and means associated with the segment and abutting the eXtreme holders' to retain the holders in contact with each other, both of said means lying below the printingportions of said embossed strips, said arcuate means comprising a pair of parallel stri s spaced apart and radially overhanging t e non-printing bodies of the embossed strips, said embossed strips being slightly shorter than the distance between the arcuate strips, whereby the latter form abutments preventing material longitudinal movement of the embossed strips without preventing skewmg of the printing devices.

5. In a printing device the combination of a stiff arcuate segment, a plurality of embossed printing character bearing strips, an individual holder associated with each strip, which strip overlies and on which it is held by the inward edge iianges of the strip, both said strip and holder being comparatively flexible, means extending arcuately on the segment adapted to retain the holders in contact with the segment while allowing their removal by skewing and means to retain the holders in contact with each other.

6. In a printing device the combination of a stiff arcuate support, a plurality of removable elongated iexible printing character bearing members adapted to lie parallel to the support axis when in printing position, means extending arcuately on the support adapted to overlie the ends of the members to retain them in printing position in contact with the support, such iieXibility permitting the members to `be turned askew and warped to conform to the support whereby said members may be individually assembled onto the support between other members notwithstanding the curvature of the support.

In testimony whereof, I hereunto affix my y signature.

CLIFTON oHiSHoLM.

Images