US1537476A - Ink heater for printing presses - Google Patents

Description

May 12, 1925. 1,537,476

D. V. LA MOTT ET AL INK HEATER FQR PRINTING PRESSES Filed De. 26, 1922 INI/5070i?! a. v. LA M077 Patented May 12, 1925.

UNITED STA-TES 15323476 PATENT OFFICE.

DELLA V. LA MOTT, OF OAKLAND, AND CALHOUN J. DOGGETT, 0F SAN FRANCISCO, CALIFORNIA.

INK HEATER FOR PRINTING PRESSES.

Application filed December 26, 1922. Serial No. 608,898.

To all whom t may concer/n:

Be it known that we, DELLA V. LA MOTT and CALHOUN J. DOGGETT, citizens of the United States, residing at Oakland, in the county of Alameda, and San Francisco, county of San Francisco, State of California, have invented new and useful Improvements in Ink Heaters for Printing Presses, of which the following is a specification.

This invention relates to improvements in printing presses and has to do with the application of heat to the printing plate and other parts of the press for the purpose of removing and eliminating the disadvantages and objections attending the operation of printing presses in cold weather and under undesirable atmospheric conditions whereby the printing operation and the printing are improved.

The primary object of the invention is to provide a heating appliance which is of simple and inexpensive construction and is capable of being readily attached to a printing press so as to apply heat to the ink plate and other parts of the press whereby the ink will be warmed and be subject to application in a better and more effective manner than when applied under cold conditions. The application of heat also tends to eliminate static electricity in the paper and to place and maintain in proper condition the printing cylinder, the paper packing of which in moist or damp atmospheric conditions, will often swell out of shape and become unfit for use.

A further object of the invention is to provide a heating attachment for cylinder printing presses in which the heat may be regulated to suit the conditions at hand and which is of such nature that it takes up little or no room and does not interfere with the ordinary operation of the press.

The invention possesses other advantages and features some of which, with the foregoing will `be set forth at length in the following description where we shall outline in full that form of the invention which we have selected for illustration in the drawings accompanying and forming a part of the present specification. In said drawings we have shown one form of the construction of our invention, but it. is to be understood that we do not limit ourselves to such form since the invention as expressed in the claims may be embodied in a plurality of forms.

Referring to the drawing: Fig. l represents a fragmentary perspective view of a portion of the cylinder of a' printing press showing it as it would appear when in use with the heating device of our invention.

- Fig. 2 is a cross sectional View taken on line 2 2 of Fig. l.

In carrying out our invention With cylinder presses, we mount adjacent to the ink plate, a heater which may' derive its heat from any source but which preferably con sists of a gas burner because of its simple, cheap construction and low cost of operation. rlhe bnurner or heater is mounted above the ink plate so that the heat therefrom is directed onto said plater and the heatwill also aect the cylinder. By the application of heat to the ink plate and associated elements, all of the disadvantages occurring incident to the operation of a printing press in undesirable atmospheric or cold conditions, such as the off set of the ink after being printed, the stickiness of the print, the objectionable static electricity conditions in the paper and the poor condition of the paper packing on the cylinder are removed. With our heater the ink is applied to the form in a more effective and desirable manner, especially in the coating of the solid portions of the type so that a better printing of such portions is effected. Ordinarily printing presses must be operated in warm temperatures and this requires heating of large rooms or buildings in order to secure the proper temperature. Vitlr our invention it is unnecessary to heat the entire room or building and maintain the same at a certain temperature for an effective operation of the press and by eliminating these former requirements, a saving in printing press operations will be effected.

The preferred embodiment of the invention as shown in the drawing is applied to a cylinder press and comprises a heater generally designated l, which is mounted on thc frame 2 of the press so as `to extend across the ink plate 3 in front of the ink rolls 4 between the latter and the cylinder, which latter' it is thought unnecessary to illustrate. The heater is preferably mounted several inches above the ink plate, its distance being varied depending upon the character of the heater. The heater is preferably constructed so that the heat therefrom is directed down- Wardly-'ontdthe ink plate and: will have an appreciable eii'ect on the rolls 4 and the'` cyli inder, not shown. The type of heater which We have illustratedk comprises two gasburn.-

ersl 5' and 6" in the nature of pipes havingL iron and is arranged so that the heat Jfrom the burners willi be deflected dovvnvvardll7 onto the ink plate. A pipe'A 10 leading' toV a source of fuel supply, not shown, is conneet-ed` bytli'e'usuali fittings With the? burners 5 and 6, a-n'deachl burner is provided With' a valve 1'1" toregulate the flame. The device off our invention: issimple' as; to construction', compact, ineXp'ens-iyefand lmay be readily in-r stalled upon' a printing pres's'wvitho'ut rpquiringg specialor sli'lledlabor.

lVitfhy a' press# equipped with thedevice; of our invention, in' operating the press under col-vd andj undesirable atmospheric?conditions, before putting?4 the press into" operation, the burners are lighted so thatE the" heat there' from" will`l be directed-l onto` the ink plate andVV t'vifll?also-affect thecylinder, not shown, andy other parts of the vpressi In some# instances it rnay lie/necessary 'to Aoperatetheburner* for' a short timefbeforethe press is put" intooperation-but this depends onthefc'ond'itions at hand, inasmuch as the device" o'our' invention lis usually'operated during the operation of2 the press.

Asthe-ink plate-moves back and forth the Working sur-face thereof has heat applied thereto in such manner as to maintain the inl; in the proper ksoift condition and is otherwise entered so that' the appliatibn of the ink to the type will be very effective and iree from theobjeetions attending When operating the press in kcold and undesirable atmosphericrconditions. As Will be apparent from the foregoing description and accompanying drawing", the' useV ofi the device of our invention in" connection withx print-ing presses will greatly iniproveprinting operationsl and the`v characterof the Work.

We claim:

lf. The combination Witflif a printing press@ heat onto the pl`ate,rsaid` deflecton plate eX-v tending; a short dista'i'ice on optos'itesid'es'ofV the. burnera'nd.' exten'ding"l over but' a sn'iall part offthe'ink plate.

2. The combination with a printing press including ain inlr plategro ai burner extend# iup; a-crloss said.-`v inklplate above the latter and? arranged to apply heat to the plate,- a' de:-V i'le'ctor plate of rectilinear out-line fastened on* the upper si'deof andi: supported by the burner and ar-ranged tod'eect heat onto lthe plate,- said burner"comprisingittvo: pipesliaL4 ing'- burner; oriiices therein and a valve: for' each pipegsai'd deflector pl'ateffextending but a short' distanc-ebeyond the outer sidesof -the pipes comprising the'burner'andextende ingover'but' a smallportionvo't the 'ink plate) JiV D@GGE'FI.y DELLA V. LA li/TTTQ

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