US2107117A - Roller bearer for printing machines - Google Patents

Description

Feb. 1, 1938.

INVENTOR 'ATTORNEY Patented Feb. 1, 1938 l UNITED STATES FATENT OFFICE ROLLER BEARER FOR. PRINTING MACHINES John W. Johnson, Manhasset, N. Y.

Application December 30, 1936, Serial No. 118,236

7 Claims. (Cl. 101-348) 'I'he invention relates to roller bearers for as to ensure the proper contact relation between printing machines, and more particularly to dethe inking rollers and the type. The composition vices of this type adapted for use in bed and of the inking rollers engages the bearers, thus platen printing machines known generally as job ensuring not only a desired frictional engage- Dresses. ment between these rollers and the bearers to 5 In machines cf the type to which the invention ensure the turning of the rollers during contact relates, the inking rollers have reciprocatory with the type, but the compressibility of this commovement to ensure rolling contact with the type position permits an automatic adjustment of the in a printing form and with an inking plate. To rollers to ensure the desired rolling contact with 10 secure a proper inking of the type during the the type even though the bearer may be slightly l0 makeready of the press, it is necessary for the high in relation to the surface of the type. pressman to provide a backing for the form to Bearers embodying the invention may be in- Secure a proper relation of the printing surface eXpensively produced, and are secured to the 0f the types to the plane of movement of the chase in a manner to avoid their displacement in ink rollers, as well as a proper positioning thererelation thereto after the form has been mounted 15 of in relation to the platen in order to secure a upon the type bed of the press. Y clean sharp impression. If the face of the types The invention consists p-rimarily in a roller be too high, the inking rollers may have a rubbearer for printing machines embodying therein bing, instead of a rolling, contact therewith or a vertically extending type high flange, a track with parts thereof, thus not only failing to propadapted to be engaged by a composition inking 20 erly apply the ink to the face of the types, but roller extending perpendicularly from the top of scraping ink from the roller and accumulating said flange, and a spring clip having upper and it upon the edge of said types. lower arms and a base secured to said flange, both To correct this condition, it has long been the of said arms extending parallel with said track practice to provide inking roller bearers locked and the upper arm converging toward the other 25 in the chase with the type and the furniture by and being spaced below said track a distance permeans of quoins. While this practice has secured mitting free flexure of said arm when applying a better inking of the type, it has been found obthe bearer to, or removing it from, a chase; and jectionable because such bearers cannot be rein such other novel features of construction as moved from a form without unlocking the form, are hereinafter set forth and described, and more 30 and when a form is unlocked, type may become particularly pointed out in the claims hereto apdisplaced and the position of the setup may be pended. disturbed to an extent to necessitate a readjust- Referring to the drawing, ment of the makeready of the press if it be de- Fig. 1 is a plan view of a locked form having sired to again run the press with the form therein. roller bearers embodying the invention applied 35 With the type of roller bearers above referred to the chase, an inking roller being shown in to, the keeping of standing type in the forms canoperative relation to the form;

not be resorted to unless the roller bearers are Fig. 2 is a front View of a roller bearer embodyleft in the form. This necessitates the provision ing the invention; and

of a large number of such bearers in a printing Fig. 3 is a section on the line 3-3 of Fig. 1 40 plant, and even when such bearers are used in upon a larger scale. the manner above referred to, accuracy in the Like numerals refer to like parts throughout adjustment of the plates is necessary when lockthe several views. ing up a form. In the embodiment of the invention shown in With the above conditions in mind, I have prothe drawing, the chase is shown at l0, the print- 45 vided roller bearers which may be applied to the ing form at ll, the furniture at l2 and the qucins chase after the form has been locked therein, and at I3. A single inking roller is shown at I4, almay be quickly removed therefrom and applied though a plurality of such rollers are usually emto another locked form without unlocking the ployed in inking the form upon a printing press.

form from which the plate is being removed. A roller bearer made in accordance with the 50 In addition to the ready removability of the invention embodies therein a vertical type high bearers and the possibility of quickly applying ange l5. Carried by the top of this flange and them to a chase, the construction of the bearers projecting laterally thereof and perpendicularly is such as to establish a definite relation of the thereto, is a roller track I6 consisting of a at roller track thereof to the surface of the type, so portion formed integrally with the flange I5. Be- 55 yond the opposite ends of the track I6 are downwardly directed guide ends I'| and I8 adapted to engage an inking roller and lift it into the proper bearing relation with the track I6.

The flange I5, track I6 and guide ends I'I and 'I8 are all formed of non-resilient sheet metal, these parts being integral one with the other.

Carried upon the inner face ofthe flange I5 and below the track I6 is a spring clip having a base I9, a straight lower arm and a top arm 2| converging towards the bottom arm 20. The free end of the arm`2| is upwardly flared as shown at 22. Both arms 20 and 2| are positioned below and extend parallel to theV track I6.

The said clip is made of spring metal and the base I9 is of a width or height to space the upper arm 2| sufficiently below the track I6 to permit the free ilexure of said arm when applying itrto, or removing it from,rone of the sides of the chase I0. The bottom arm 20 of said clip is at VandY positioned in the plane ofthe bottom edge of the flange I5. Y

The thicknessvof the material of the bottom arm 20 is only a few thousandths of an inch, so that when it'is applied to the chase, it will not raise the form materially in relation to the type bed of the machine.

The thinnessr-of the metal stock permits the free flexure of the clip when applying it to, orY

removing it from, a chase, and the usek of heavier stock is not required since the weight of the form will prevent displacement of the bearers during the operation of the press. Y

In using bearers embodying the invention, the form is made up in the usual manner and locked in the chase by means of the quoins I3, also in the usual manner. In making up the form, the usual practices are followed, and the bearers Vembodying the invention are applied to the chase after the form has been made up and locked.

The mounting of the bearers in a locked form requires merely the application of the clip to a side bar of the chase, and the exertion of sufficient pressure to flex the upper arm 2| of the clip and permit the bearer to be forced over the side of the chase until the lower arm 20 passes beneath and in close contact with said side bar.

The bearer may be shifted longitudinally thereof along the side bar of the chase, although the downwardly directed guide ends 'land I8 will aid in initially positioning the bearerV sufliciently accurately.

In the accompanying drawing, the inclined Y guide ends I1 and I8 are shown as being positioned beyond the side bar of the chase. It is obvious that the downward angle of these ends may be such that the loWermost pointsthereof will be positioned from the bottom arm 20 of the clip or the bottom of the vertical flange I5 a distance equalling the'depth of the side of the chase, so as to permit the same bearers to' be used with a number of chases of different sizes. If `so used, the ends of the guides I1 and I8 will have such contact with the upper face of the side bar of the chase as to contribute toward the avoidance of displacement of the bearer while a press is operating.

Duplicate bearers are used upon opposite sides of the chase, these bearers being reversible so that the same bearer may be used on either side of the chase.

Ifv it be desired to remove the bearers from a chase, this may be done by merely pulling the bearer from the edge of the chase after the chase has been removed from the type bed of the press,

Y of the roller by the ends of the guide track.

The material of the composition of the roller I4 is sufficiently compressible by the Weight of the roller to not only ensure the turning of the rollers by contact adjacent the opposite ends thereof with the bearers, but to permit the inked portion of the roller intermediate the bearers Vto assume a height Whichwill ensure a'desired rolling contact with the type or plates in the form. By engaging the compositionV of the rollers with the tracks of Athe'bearers, turning ofthe roller is assured, and with a rolling contact of the inking rollers with thetype, there is a proper` inking. The reciprocatory movement of the inking rollers will ultimately bring them to the guide atthe opposite end ofthe bearers, so that upon a reversal of the lineal travel of the rollers, the moven ment thereof caused by the bearers will be the reverse of that during the initial movement 'of the inking rollers in relationto the bearers. Y

It is desirable that the guidek ends I1 and I8 project beyond the ends of the vertical type highflange I5, since this avoids unnecessary labor in conforming the ends'of said vertical flange I5 to the angular inclination of said guides.

In the accompanying drawing, I have shown the clip as being secured to the flange I5 by means of rivets. It is obvious, however, thatwelding may be resortedto in securingrsaid clip in the proper position in relation to said flange.

From the foregoing it is obvious that the roller Y ously been used, to be carried as standing forms Y ,ready for immediate future use.

It will be noted that roller bearers embodying the invention have no movable parts beyond the flexibility of the arms of the spring clip, and by reason of theuse of this clip, the bearer may be used upon any size of chase so long as the length of the track I6 is equal to the portion of the form to be inked.

The main advantages of bearers embodying the invention are that they may berapplied to, and removed from, a chase after the form has been made up without disturbing any of the furniture or thetypes, and that While inking, by reason of the contact of the printing roller composition withY the track I6 and the height of the track, a proper rolling contact of the inking rollers with the types is assured at all times. Other advantages have been set forthrabove.

It is not my intention to limit the invention to the precise details of construction shown in the accompanying drawing, it being apparent that while a single spring clip of slightly shorter length than the vertical flange is shown', a continuousl as new and desire to have protected by Letters Patent, is:-

1. A roller bearer for printing machines embodying therein a vertically extending type high flange, a track adapted to be engaged by a composition inking roller extending perpendicularly from the top of said flange, and a spring clip having upper and lower arms and a base secured to said flange, both of said arms extending parallel with said track and the upper arm converging toward the other and being spaced below said track a distance permitting free flexure of said arm when applying the bearer to, or removing it from, a chase.

2. A roller bearer for printing machines embodying therein a vertically extending type high flange, a track adapted to be engaged by a composition inking roller extending perpendicularly from the top of sai-d flange, and a spring clip having upper and lower arms and a base secured to said ange, both of said arms extending parallel with said track and the upper arm converging toward the other, having an upwardly flared edge and being spaced below said track a distance permitting free flexure of said arm when applying the bearer to, or removing it from, a chase.

3. A roller bearer for printing machines embodying therein a vertically extending type high flange, a track adapted to be engaged by a conrposition inking roller extending perpendicularly from the top of said flange, downwardly directed guides at the opposite ends of said track and said flange, and a spring clip having upper and lower arms and a base secured to said flange, both of said arms extending parallel with said track and the upper arm converging toward the other and being spaced below said track a distance permitting free liexure of said arm when applying the bearer to, or removing it from, a chase.

4. A roller bearer for printing machines embodying therein a vertically extending type high flange, a track adapted to bel engaged by a composition inking roller extending perpendicularly from the top of said flange, downwardly directed guides at the opposite ends of said track and said flange, and a spring clip having upper and lower arms and a base secured to said flange, both of said arms extending parallel with said track and the upper arm converging toward theother, having an upwardly flared edge and being spaced below said track a distance permitting free ilexure of said arm when applying the bearer to, or removing it from, a chase.

5. A roller bearer for printing machines embodying therein a vertically extending type high flange, a track formed integrally with said flange extending perpendicularly from the -top thereof and adapted to be engaged by a composition inking roller, and a spring clip having a straight lower arm, an upper arm spaced below said track a distance permitting free flexure of the arm when applying the bearer to, or removing it from; a chase, and a base secured to said flange, both of said arms extending parallel with said track.

6. A roller bearer for printing machines embodying therein a vertically extending type high ange, a track formed integrally with said flange extending perpendicularly from the top thereof and adapted to be engaged by a composition inking roller, and a spring clip having a straight lower arm, an upper arm spaced below said track a distance permitting free flexure of the arm when applying the bearer to, or removing it from, a chase, and having an upwardly flared edge, and a base secured to said flange, both of said arms extending parallel with said track.

7. A roller bearer for printing machines embodying therein a vertically extending type high flange, a track formed integrally with said flange extending perpendicularly from the top thereof and adapted to be engaged by a composition inking roller, downwardly directed guides at the opposite ends of said track and said flange, and a spring clip having a straight lower arm', an upper arm spaced below said track a distance permitting free ilexure of the arm vwhen applying the bearer to, or remo-ving it from, a chase, and having an upwardly flared edge, and a base secured to said ange, both of said arms extending parallel with said track.

JOHN W. JOHNSON.

Images