US511113A - Printing-press - Google Patents

Description

(No Model.) A 2 she'ets-sne'es"1.

' H. BREUER..

PRINTING ERESS.

Patented Deo, 19, 1893,

' NVENTOH BMW@ A TTOHNEYS.

. fue ummm. ummm cum-Am;

Wm NB CN. D. 0.

v(itin Model.) 2 Sheets-Sheet 2. HL BREUBR. PRINTING PRESS.

No. 511,113. Patented-Dec. 19,1893.

ATTORNEYS.

NATIONAL L To @ZZ whom t 11i/tty concern.-

UNITED STATES PATENT OFFICE.

IAIYNEK BREUER, F NEV PRAGUE, MINNESOTA.

PRlNTlNGQPRESS.

SPECIFICATION forming part of Letters Patent No. 51 1,113, dated December 19, 1893. Application filed February 28, 1893. Serial No. 464,005. (No model.)

Beit known that I, HYNEK BREUER, of New Prague, in the county of Scott and State of v Minnesota, have invented a new and useful Improvement in Printing-Presses, of which the following isafull, clear, and exact description.

My invention relates to an improvement in printing presses, especially to hand presses of the cylinder type, and it has for its object to provide a press with a rocking tympan so constructed that it will operate automatically across the bed of the press as the cylinder is rolled over the latter.

A. further object of the invention is to construct the tympan in a simple, durable and economic manner and also whereby as the `impression cylinder is manipulated the matef rial upon which the printing is to be produced will contact with the type form only at that pointat which the impression is to be taken, the tympan acting automatically to carry the material upon which the impression is made away from the face of the type immediately after receiving an impression.

It is a further object of the invention to construct the tympan in such manner that one side of it will be automatically released the moment that the impression cylinder has passed to the end of the bed. y

Another object of theinvention is to so construct the tympan that it will be prevented from moving side-wise, being compelled to have end motion only,'and whereby the tympan when actingin conjunction with the img pression cylinder will produce a clear, sharp and fine print for newspapers, posters, ne book work and illustrations, eectually preventing smudging of the printed material, and whereby at the same time the work will be rapidly performed, the cylinder only being manipulated.

The invention consists in the novel construction and combination of the several parts, as will be hereinat ter fully set forth and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures and letters of reference indicate corresponding parts in all the views.

Figure l is a section taken vertically and centrally through the bed, tympan and impression cylinder of a press,A the said section being taken essentially on the line l-l of Fig. 2, the impression cylinder being shown as about mid-way of the press bed. Fig. 2 is a plan View of the improved press. Fig. 3 is a vertical section taken through the bed at one end and through the cylinder, illustratingthe cylinder at the end of the press and the tympan in position to commence printing. Fig. 4 is an end view of the press. Fig. 5 is an enlarged partial transverse section through the bed, the cylinder and a portion of the tympan ot' the press, illustrating their connection. Fig. 6 is a detail view, illustrating the manner in which the grippers of the tympan are spring-controlled; and Fig. 7 is a view similar to Fig. 8, illustrating however, the opposite end of the press and showing the impression cylinder as near the end, and the position ot' the tympan at that time; the said Fig. 7 also illustrates a slight modification in the construction of the tympan.

In carrying out theinvention the bed A of the press is supported preferably by angular side or bracket rails B, which rails in their turn are supported by appropriate legs or standards. The bracket rails B, extend beyond both ends of the bed A, and upon each member of each bracket rail a run-way l0, is located, the upper edge of which extends above the upper edge of the horizontal members of the bracket rails, as shown best in Figs. t and 5, and vthe bed is usually made to abut at its side edges against the run-ways 10. Rails 1l, are located upon the bed at its sides, the said rails engaging with the inner surfaces of the run-ways, but the tops of the rails are some distance below the tops of the run-ways, as is likewise best shown in Fig.

5; and the rails 1l and run-ways 10, maybe made integral vor connected in any suitable or Vapproved manner. The rails are adapted as rtracks. for the tympan C to be hereinafter described, and the run-ways are adapted as tracks for the impression cylinder l), which may be rotated or rolled over the bedl in 'any suitable or approved manner.

I have illustrated as placed upon the bed chases l2, and vhave shown type forms 13 lockedV therein, and itwi'llfhe uobserved by I ne 1 'The main feature etthis `inverttion. relate 1to1 the construction etk the tympanlG, andthe 'ibedy portion ef Knit he Vsaid tympan *comprises g Vtwo side barstteVV andY l5, 'fhaving'anl archedfi and thesaidfhedy is provided withcnrved K connected Vhy brace rods 18,in ardent-hat tir-e1r .K vsaid carved portiensshall 'lo'eheldy improper shape;andfnear'iliebottemportion; cthe Kserved sectiensotthe tympan at each end,Y a -K shaftl 19, is journaledin"suitahlebearings 20,

attached- `tothe said side. pieeesas shown; in

K Fig; ag/and: the bearings-or benessere located -K Y near th'eiinner edgesoi the s'aidgsidepiecesnH K K 2K5 rockingfmotion nrtrasfelfy of thetympanupen KK order that "they sh all nutl ainterterecwithl the fly vbelow the shaftsfla'and tlfler said shafts are r K f @the cross barsl an dit?? through themediumoflr springsl 2.2K; located 4at they r4endsVr ofV` Vtheshatts i" and each shaft is provided, preferably at its center, withal: attached handle enlever-23, and thcsehandles 'or' leversare adapted` fte? 'engagefwith projections orr knees'2s,locatedV "atfthe endsotthehed preferably at the new traiportierithereo.A f' 'f f `A felt or rubber blanketE upon which the paper is laid, is carried by the tympan, the sides of the blanket being free and Working independently of the tympan. The ends of the blanket are secured in any suitable or approved manner to the cross bars 16 and 17 of the tympan frame, and when the tympan is in position to commence printing, as shown in Fig. 3, the blanket stands rearward or outward from the body of the tympan ;but during the process of printing the impression cylinder presses the blanket and the paper supported by it downward against the type form.

The paper is held at its ends by the upperand lower, or the two end sets of grippers 21, the said grippers engaging with the paper and clampin g it between themselves and the cross bars 16 and 17.

In order that the tympan shall have guided movement upon the bed, that is, in a sidewise direction, and in order to insure its rocking in the same path at all times, projections or studs 25, are preferably formed upon the outer side edges of the side pieces of the tympan, and these projections or studs are adapted to enter recesses 26, formed in the inner upper side faces of the run-Ways 10; but if in practice it is found desirable a rack 4surface 27, may be formed upon the upper surfaces of 'the runways 10 and therailsgll, to be en l kgagcxl by teeth 28,fomnednpon-the under face.v K

Kot ltheside pieces of the tympanrame, as illustrated in,Fig.7. Y

n ln' I have illustratedthemannerY in which thespringsKexertpower nponthe- Ka ygrippers land in said ligureitwillbeob: 1 K f served ,thatzrthe springs lat theirfouter; endsare securedto thefboxes 2d,whilethcirinnerends. f @are securedtctheend grippers,all ot the grip-k K persbeincr rigidly attached ter theshatte19.-4 Thus, in tlrepreeesset printingwhensthe tyinfK l ypanisi n'the position shown 'for examplein Fils. 1 3, thatlis, when; theimpressioneyltnderiis atrr V; K,

oneiend of the base; tf1-ame of K thepress, theV the grippersY attire lowergportion otlthe tym-K npan ywill-be' epened, f admitting -of.the'-with Y drawal ofthe ipanier therefromer the introV K daeteniot a sheet ot paperthereimand after g f the'paper Khasbeenuseenred, or hasvbeen'lo- 01: i lower cross bari?, the lever 23 ofY the upperfset K n 'of grippersismanipnlated'Kteraisefsaid grip-V 1 pers tronr connection with the# upper cross y K K bari 16,1 and the paper-is placed upon that bar K aand Y isengaged the upperset of grippers provided with ka 'Series ofV grippers V21,which f grippersareheld normallyinengagementwitha cated between f the slower; grippers andr the lower lever; y 23,1"attaehedtothelower gripper shaft lthwiil have engaged with a studhand K v n A f B Y the impression Keylinder istrolhed-y in direc-KK tienfot: the eppesitelend of theiramefthe lower: 'K

cross barswill closenponthe paper, and the Y loe* -wardrto airoeking engagement with Vtherails f 11; andasethe cylinder passes'indirectien cti; K'

.the nppesite endlnitheftympan; and-tikewise upon the type form, While the printed portion of the paper will be raised from the the oppositeendof'the press, thezsurtaeeg of' i i :the paper tobeprinted is foreedidownward m5 K form, thus ettectuallypreventing any smudging or marring of the material to be treated. As the impression cylinder approaches the opposite end of the tympan the surface over which the roller is passing is elevated clear of the type form, and when the cylinder engages with the opposite curved surface of the tympan the tympan will be elevated upward and rearward in an opposite direction to that shown in Fig. 3, and in like manner.

The invention is exceedingly simple, durable and economic, and by means of a rocking tympan fine Work may be obtained and likewise a saving of time, because the tympan need not be touched by hand but is operated simply and automatically by revolving the cylinder, whereupon it is given a rocking motion. Thus the tympan rises and falls automatically. The rocking tympan can be used on all printing presses where thestraight disk is employed, and as heretofore stated it makes a radical improvement in the printing.

It will be observed that when the blanket is fastened to the rocking tympan as has been described, that is, with its edges free, the paper touches the type in such place only where pressure is brought to bear upon it by the printing cylinder. It is also evident that by rotating the cylinder on the rocking tympan it will impart to the tympan a rocking inotion at that point where theblanket together with the paper is pressed down at the front of the cylinder, and at the same tmethe tympan is raised at the rear ot' thev cylinder and the printed portion of the sheet is carried out of engagement with the type form.

When the cylinder has traveled from one end of the press to the other,l what was formerly the lower portion of the tympan will become the upper portion; and the lever 23 of the lowermost set of grippers will strike the projection 24::upon the bed, and the lower set of grppers will be thereby automatically opened, and the printed sheet may be removed by pressing downward upon the lever of the upper set of grippers; and after a new sheet ot paper has been placed in gripping engagement with the tympan, the cylinder is rolled back to the opposite end of the bed of the press and a second impression is taken. This operation is repeated until as many sheets have been printed as may be found desirable.

Having thus described my invention, I claim as neur and desire to secure by Letters Patent--A over the tympan and imparting movement thereto, as and for the purpose set forth.

3. In a printing press, the combination, with a support and a type bed, of a tympan com- 4e prising an arched body and upwardly and inwardly curved ends, and an impression cylinder adapted to be 'rolled over the tympan, whereby the latter is given a rocking movement upon its support, as and for the purpose specified.

4. In a printing press, the combination, with a support and a type bed, of a tympan of essentially cradle shape and adapted to have rocking movement upon the support, and an impression cylinder independent of the tympan and held to roll over and upon the said tympan, and gripping devices carried by the tympan, as and for the purpose specified.

5. In a printing press, a cradle-like tympan adapted for rocking movement over the bed of the press, a blanket secured at its ends to the tympan and free at its edges, and grippers located at the ends of the tympan, substantially as and for the purpose set forth.

6. In a press, the combination, with a support, a type bed, a tympan comprising an arched body and inwardly curved extremities, and a blanket secured to the body near its extremities at its ends, of an impression cylinder having rolling motion over and upon the tympan, imparting rocking motion to the latter, grippers carried by the tympan, and means, substantiallyas shown and described for manipulating the grippers, as and for the purpose set forth.

7. In a printing press, the combination, with4 a type bed, a support, of a rocking tympan having meshing engagement with its support, and an impression cylinder through the medium of which the tympan is given motion, as and for the purpose specied.

HYNEK BREUER.

Witnesses:

JOHN PROSHEK, FRANK Covnnr.

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