US1912858A

US1912858A - Apparatus for ornamenting the surface of strip materials

Info

Publication number: US1912858A
Application number: US591539A
Authority: US
Inventors: Prifold George
Original assignee: COTT A LAP Co
Current assignee: COTT A LAP Co; COTT-A-LAP Co
Priority date: 1932-02-08
Filing date: 1932-02-08
Publication date: 1933-06-06
Anticipated expiration: 1950-06-06

Description

I June 6, 1933. G. PRIFOLD 1,912,858

APPARATUS FOR ORNAMENTING THE SURFACE OF STRIP MATERIALS 7 Filed Feb. 8, 1952 2 Sheets-Sheet l G. PRIFOLD Jul 1e 6, 1933.

APPARATUS FOR ORNAMENTING THE SURFACE OF STRIP MATERIALS Filed Feb. 8, 1952 2 Sheets-Sheet i' w PM 7%. w;-

ATTORNEY Patented June 6, 1933 UNITED STATES PATENT orrrce GEORGE rEIroLn, E soMERvILLE, NEW JERSEY, ASSIGNOR TO THE COTT-A-LAP com:- PANY, 0E SOMERVILLE, NEW JERSEY, A CORPORATION on NEW JERSEY APPARATUS FOR ORNAMENTING THE SURFACE OF STRIP MATERIALS Application filed February 8, 1932. Serial No. 591,539

This invention relates to an apparatus for oriiamenting the surface of strip materials, andis directed particularly to giving strip materials used as floor coverings a marblesas liln z appearance.

lhe new method includes the application to wet paints printed upon strip material of turnable or rotary brushes so moved that there is at all times relative movement be tween the brushes and the strip material. This avoids blotches or brush marks on the material. a i a i The apparatus for carrying out this method includes brushing means synchronized with the feeding mechanism of a print ing machine. A feature of the invention consists in providing this device with a brushing attachment readily applicable toa block machine of the type customarily used in printing floor coverings; This brush attachment is an improvement of that shown in U. S. Letters Patent No. 1,85i,524, issued to me on April 19, 1932. l

An illustrative machine embodying the apparatus features of my invention designed to facilitate the carrying out of my new method is illustrated in the accompanying drawings, in which: i r c Fig. 1 is a side elevation partly broken away of a conventional block printing machine showing my brushing attachment applied thereto;

Fig. 2 is an attachment c Fig. 3 is a transverse section taken on the line 3-3 of Fig. 2;

Fig. 1 is a top view of a partial transverse section taken on the line 47-4 of Fig. 3; c

Fig. 5 is a fragmentary view of a transverse section similar to Fig. 3, showing a modification of the invention; and c Fig. 6 is a top view of a partial transverse 'ection taken on the line 6- 6 of Fig. 5.

Fig. 1 shows a block printingmachineof conventional construction] such as is disclosed inU. S. Letters Patent No. 1,854,524, referred to above. It is provided with a bed 10 over which travel feeding bands .11 for intermittently. moving a strip of material along thebed, and with a plurality of printend'elevati'on of the brushing ingheads 13. At the right hand end of the figure is shown the customary mechanism'for causing the intermittent movement of the feeding bands 11. a drum 14: for each band 11;, carrying a ratchet 15 which is engaged by a pawl 16 oscillated by a segment gear 17 ona pivoted arm 18 which is lifted and allowed to fall through the engagement between a follower 19 and a cam 20 lined on a cross-shaft 21 at the end of the machine. The cam rotates in a clock wise direction so that the feeding bands 11 are moved during more than one-half of the revolution of the cam while the follower 19 is travelling on the rising face XY of the cam and remain stationary during the remainder of each revolution of the cam. The printing heads 13 are operated intermittent ly by the usual cams 22 on cross-shafts 23 whose movements are synchronized with those of the cross-shaft 21 of the feeding mechanism by a longitudinal shaft 24 which is connected witheach of the cross-shafts by a gearing of the same gear ratio. The print ing heads are held in raised position during the movement of the feeding bands 11 and descend to apply paint from their painting blocks to the strip material on the bed dur ing the periods when the feeding bandsll are stationary. c

As illustrated in Fig.1, one of the printing heads 13a is held up by means of blocks 25, so that it is out of contact with its cam,which may. be removed. On the cross-beams 26 (Fig. 2) ofthis printing head are clamped This mechanism includes two frames 27 in which are journalled two cross-shafts 128. 29. On the frames 27 are pivots 30 to which are secured the upper ends of two arms 31 which depend between. the cross-beams 26 through the space ordinarily occupied by the printing blocks, which, in this case, are removed. The arms 31 contain slots 32 into which project crank pins 33 on disks at fixed on the ends of the shaft 29. The lower ends of the arms 31 have a pin and slot connection withthe blocks 35 which are slidably mounted on rods 36 car ried by frames 37 clampedto the cross-beams 26. -To each of the blocks 35 is attached a brush 38, preferably in a position such that the separated sets of bristles 39 will rest on the strip of material on the bed in an inclined position, as shown in Fig. 2, and described in my Patent No. 1,854,524. In accordance with my present invention, the blocks serve also to support a number of turnable or rotatable brushes 50, which are preferably positioned in advance of the brush 38. Relative longitudinal movement is maintained at all times between the brushes 50 and the brush 38 on the one hand, and the material on the other. The means by which such relative movementis obtained is set forth in detail in Patent No. 1,854,524 referred to above. Summarized briefiy,'it is accomplished as follows:

The shaft 29 is driven from the cam-shaft 23a associated with the printing head 13a,

by a pair of

gears

40 and 41, fixed on the

shafts

29 and 28, respectively, and a pair of sprockets 42 and 43 fixed on the shaft 28 and its cam-shaft 23a and connected by a sprocket chain 44. The two gears and the two sprockets each have a one-to-one ratio, so that the rate of revolution of the shaft 29 is equal to that of the cross-shaft 23a and also that of the cross-shaft 21. By proper positioning of the parts when the sprocket chain 44 is applied, the crank pins 33 are placed in their uppermost positions when the middle point Z of the rising surface XY of the cam is in engagement with the fo lower 19. Since the shaft 29 and the cross-shaft 21 rotate in the same direction and at the same speed, the blocks 35 have a back and forth movement synchronized with the intermittent movement of the feeding band 11 and the strip of material carried thereby. The amplitude of the reciprocation of the block 35 is considerably less than the distance travelled by the material at each movement thereof, the latter being equal. to the distance between successive printing heads. The blocks 35 are accordingly moved forward at a slower rate than that of the material during the forward movements of the material and since the material moves forward for more than one-half the revolution of cam 20, as described above, the blocks 35 are moved back over the surface of the material during the periods when the material is at rest, and also during the moments when the material starts and stops its movement. The length of the arm 31, which is effective in rotating the disc 34, varies according to the position of the crank pin 33 in the slot 32. \Vhen the crank pin engages the upper end of the slot, the effective length of the arm 31 is shorter than when the crank pin is nearer the lower end of the slot 32. In this way the blocks 34 are given a relatively long rearward movement and a relatively short forward movement. The material is moved forward during more than one-half of the revolution of the cross-shaft, while the block 35 is moved backward during more than one half of each such revolution, thereby insuring backward travel of the blocks 35 during the moments when the ma terial is starting and stopping. The uninterrupted relative movement between the brush 38 and the material produces the streaked effect without any marring blotches or marks, disclosed in my Patent No. 1,854,- 524.

By the provision of the rotary brushes described herein, the material is given a man ble-like appearance. This result is a marked departure from the result obtained in my Patent No. 1,854,524, wherein the lines of demarcation between the different colors ran substantially parallel to the line of the strip.

Supported on the crossbeam 26 of the printing head is the frame 49, in which is Journalled the short shaft 48 supporting the gear 52 and the miter gear 53a. The gear .52 is actuated by the gear 51 positioned atfthe extremity of shaft 28 which extends through the frame 49 as well asframe 27. The miter gear 530 engages the miter gear 53?) mounted on the top of the telescopic shaft 54 through which power is delivered to the rotary brushes in the manner hereinafter described. Adjacent each end the shaft 54 is provided with universal joints 57a and 57?) whereby a high degree of flexibility is given to said shaft.

The forward end of each of the blocks 35 is bifurcated to receive a rotatable pinion 59 which is driven directly by the lower end of the shaft 54. Extending transversely across the printing machine between each pair of blocks 35 is a stringer or bifurcated member 58, in which is mounted a train of gears 55, actuated by the pinion 59. The brushes are spaced at suitable distances beneath the st inger 58, and are driven by individual gears 55 through depending shafts 56 journalled vertically in the stringer 58. Because of the extensibility of the telescopic shaft 54 and the flexibility provided by the 1l1ll-' versal joints 57a and 57?), rotary motion will be transmitted to the pinion 59 at all times during the reeiprocatory movement of the blocks Since the shaft 28 is continuously rotated in the same direction, it will be readily seen that the brushes 55 will be continuously V rotated in the same direction through the miter gears 53a and 535, the shaft 54, the gears 55 and depending shafts 56, and the direction of rotation of the brushes 50 will not in the directionof the blocks In Figs. 5 and 6, a modified form of the invention is illustrated. In this rack 60 is provided on the inside of the frames 37 and a pinion 61, adapted to engage and travel on the rack 60, is mounted on the rod 62 which in turn is ixed at its lower end to one of the gears 55. Since the rack is stabe interrupted by changes longitudinal movement of embodiment, a

, 5 the block is moving rearward the pinionwill rotate mithe opposite direction. Thus each of the brushes will be rotated firstin one direction and then intheopposite direction through the intermediate action of the train ofgears 55, theextent of rotation depending upon the length of travel of the pinion 61 on the rack 60. a L a In both of the embodiments of my inventi on disclosed herein, the surface of the material being treated will continuously be subjected to the spiral or rotary motion of a plurality of brus es, thus giving a marble-like appearance to the material. i

lVhat I claim is a a a 1. In a printing machine, the combination of'feedingmechanism for causing intermittent movement of strip material, a carrier reciprocated in synchronism with the movements of the feeding mechanism, a brush turnably mounted on said carrier, and means for turning the brush during the reciprocation of the carrier.

2. In a printing machine, the combination of feeding mechanism for causing intermittent movement of strip material, a carrier reciprocated in synchronism with the movements of the feeding mechanism, a brush turnably mounted on said carrier, and means for continuously rotating the brush during the reciprocation of the carrier.

3. In a block printing machine of usual construction, means for holding up one of the printing blocks, a carrier mounted on, said printing block, means mounted on the crossshaft associated with that printing head for oscilla-ting'said carrier in synchronism with the movements of the feeding mechanism of the machine, a brush rotatably mounted on said carrier, and a flexible driving connec tion between said cross-shaft and said brush.

4:. In a printing machine, the combination of feeding mechanism for causing intermittent movement of strip material, a carrier reciprocated in synchronism with the movements of the feeding mechanism, a brush turnably mounted on said carrier, and means for turning said brush first one way and then the other during the reciprocation of the carrier.

' 5. In a printing machine, the combination of feeding mechanism for causingintermittent movement of strip material, a carrier reciprocated in synchronism with the movements of the feeding mechanism, a brush turnably mounted on said carrier, and means actuated by the reciprocation of the carrier for turning said brush first one way and then the other. i

a 6. In a printing apparatus, the combinae5 tionof a feeding mechanism for causing intermittent movement of stripmaterial, a reciprocatory member, means for reciprocating said member longitudinally of the strip material so timed that said member changes direction of movement while the material is moving, a turnably mounted brush and means actuated by said reciprocatory member for turning said brush first in one direction and then inthe other.

7. Ina block printing machine of usual construction, means for holding up one of the printing blocks, a carrier movably mounted on said printing block, means driven by the cross-shaft associated with that printing head for oscillating said carrier in synchronism' with the movements of the feeding mechanism of the machine, a brush turnably wanted on said carrier, and means for turning said brush comprising a pinion fixed to the brush and a rack fixed. on the printing head. a

8. In a printing machine, the combination of feeding mechanism for causing intermittent movement of strip material, a carrier reciprocated in synchronism with the movements of the feeding mechanism, a brush turnably mounted on said carrier, and means for turning the brush a during the reciprocation of the carrier, and abrush fixed on said carrier behind said turnable brush.

9. Ina printing machine, the combination of feeding mechanism for causing intermittentmoveme ntof zs'trip material, a carrier reciproeated in-synchronism with the movements of the feeding mechanism, a brush turnablymounted on said carrier, and means for continuouslyrotating the brush during the reciprocation'of the carrier, and a brush fixed on said carrierbehind said turnable 37,10, In a block printing machine of usual construction, means for holding up one of the printing; blocks, a carrier mounted on said printing block, means mounted on the crossshaft associated with that printing head for oscillating said carrier in synchronism with the movements of the feeding mechanism of the machine, 'a brush-rotatably mounted on said carrier, and a flexible driving connection between said cross-shaft, and said brush, and a brush fixed on said carrier behind said turnable brush; a p a r f 11. Inaprinting machine, the combination of feeding mechanism for causing intermittent movement of strip material, a carrier reciprocated in synchronism with the movemen's of the feeding mechanism, a brush turnably mountedonsaid carrier, and means for turning said brush first one way and then the other during thereciprocation of the carrier, and abrush fixed on said carrier behind said turnable brush;

I 12. In a printing machine, the combination of feeding mechanism for causing intermittent movement of strlp material, a carrier reciprocated in synchronism with the movements of the feeding mechanism, a brush turnably mounted on said carrier, and means actuated by the reciprocation of the carrier for turning said brush first one way and then the other, and a'brush fixed on said carrier behind said turnable brush.

13. In a printing apparatus, the combination of a feeding mechanism for causing intermittent movement of strip material, a reciprocatory member, means for reciprocating said member longitudinally of the strip material so timed that said member changes direction of movement while the material is moving, a turnably mounted brush and means actuated by said reciprocatory member for turning said brush first in one direction and then in the other, and a brush fixed on said carrier behind said turnable brush.

14. In a block printing machine of usual construction, means for holding up one of the printing blocks, a carrier movably mounted on said printing block, means driven by the cross-shaft associated with that printing head for oscillating said carrier in synchronism with the movements of the feeding mechanism of the machine, a brush turnably mounted on said carrier, and means for turning said brush comprising a pinion fixed to the brush and a rack fixed on the printing along said bed and printing heads for printing on said material during its periods of rest, of a brush carrier above the strip material on the bed of the machine, means for giving the brush carrier a reciprocatory movement having an amplitude less than the distance between successive printing heads, and includ- 1ng a relatively long rearward movement and a relatively short forward movement, the latter occurring during the forward movement of the feeding mechanism, a brush turnably mounted on said carrier and means for turning said brush first one way and then the other during the reciprocation of the carrier.

In testimony whereof I have hereunto set my hand.

GEORGE PRIFOLD.

head, and a brush fixed on said carrier behind said turnable brush.

15. The combination with a block printing machine having a bed and means for causing intermittent movement of a strip of material along said bed and printing heads for printing on said material during its periods of rest, of a brush carrier above the strip material on the bed of the machine, means for giving the brush carrier a reciprocatory movement having an amplitude less than the distance between successive printing heads, and including a relatively long rearward movement and a relatively short forward movement, the latter occurring during the forward movement of the feeding mechanism, a brush turnably mounted on said car rier and means for turning said brush during reciprocation of the carrier.

16. The combination with a block printing machine having a bed and means for causing intermittent movement of a strip of material along said bed and printing heads for printing on said material during its periods of rest, of a brush carrier above the strip material on the bed of the giving the brush carrier a reciprocatory movement having an amplitude less than the distance between successive printing heads, and including a relatively long rearward movement and a relatively short forward movement, the latter occurring during the forward movement nism, a brush turnably mounted on said carrier and means for continuously rotating said machine, means for of the feeding mecha-'