US1455035A - Pump - Google Patents

Description

May 15, 1923. 1,455o35 B. C. WHITE PUMP orlginal Filed July '1, 1915 5 sheets-sheet 2 May 15, 1923,

la. c. WHITE PUMP originen Filed Jqly 7, 1915 5 sheets-sheet 5 Patented May 15, 1923.

" UNITED srnres i `1,455,035 PATENT @WICK "BRUCE c. WHITE, oFNEW YORK, N. Y., AssIGNoR fioR. Hon'aoo., or 'NRW YORK, N. Y.,

- A CoRPoRAJrIoN or NEW YoRK. 1

original appiication inea Juiy 7, i915, Vserial No.v3s,52s. Divided and thisappiieaiion inea Junefi, i918. `serial No.' 237,702. f i

To all whom it may concern.' Y

yBe it known that I, 'BRUCE' C. WHITE, a citizen ofthe United States, `residin at New York, county of New York, and tate of New York, have invented certain new and useful Improvements in Pumps, fully described and represented inthe following speciiication and the Vaccompanying draw# ings, forming a part of the same.

This invention relates to"` an improved pumpl mechanism, designed for pumping and supplying iiuids, and particularly for pumping'and supplying ink to the distributing cylinder or other portion Yof the inkf ing mechanism ofa printing press, assho'wn for instance in my co-pendingfapplication, Serial No. 38,528, iiledJuly 7, 1915, of which the present application is a division. "It 'is the specialobject of the invention to provide a. novel and improved pump de* signed for pumping Huid, as ink, so as to supply `the'fluid under pressure and in regulated quantities. vAffurther object of the invention is to provide a pumping mechanism .including a plurality of valveless plunger VVpumps vwhich can be independently ad justedvso that the fluid may be supplied in varying quantities by each ofthe pumps. '1 I/Vith these and other objects not specifically referred to in view, the invention4 has been illustrated in the accompanying drawings as employed with the distributing ap` paratus ofaI printinginachine, though it will be understood that it may be used in otherrelations and for pumping fluid other than ink.. 'i

For a' full understanding of the invention' a description of the same will be given in connection with these drawings, in which Figure 1 is a diagrammatic plan view partly broken 'away and partly'in section of a distributing cylinder of a printinglma-- chine and the ink supply mechanism.v

Figure 2 is a side elevation of Figure 1.

'Figure 3 is a. vertical section partly broken away of the ink supply reservoir, 'showing the supply mechanism. x

Figure i is a cross section on the line 1 4 of Figure showin thelpump and theoperating mechanism't ei'efor. A

`Figure 5 is a'horizontal section,-certain parts being broken away,y and certainxparts being omitted on` the line `5 5 v'of Figure 4.'

Figure vis a horizontalbroken section indifferent positions.

through the ink supply reservoir showing M a modification ofthe supplying means.

Figure 7 is a verticall section on 1ine"7*7,k

of Figure 6.

Figure 8 is a vertical cross section on 'y the line 8-*8ofv Figures 6 and 7'; and

Figures 9'and -10 are partial views similar to Figure 8, but showing'the operative parts In the ydrawings .the invention is illus-` trated as used fory pumping ink, and is shown, furthermore, embodying'a .plurality l` of pumps forvindependently supplying ink to different'sections or parts of the form.`

It ywill be understood, however, thatthis showing is-'onlyi-for the purpose of illus! tration and that they improved pump mechanism "may be.. usedy either' singlyy or u in multiple, depending on. the purpose for which it is'required, and may be used with devices or machines other than printi'ng'machines, and with fiuidsother than ink. y

In the presentapplication of the invention, inkis'supplied to a distributor C from groupsfof vink delivery nozzles arranged in| reservoirs F, which'fare kept partially filled with ink or otherfluid. Where, asin the present instance, inkis to. be supplied to' a printing machine, aplurality of the pumps will beemployed; The pumps will,'how ever, be similar in construction and operated in ay similar manner, no mattei` what numberare employed, and the construction` and operation' of a'plurality of these vpumps will bedescribed."

These pumps'. `asy shown, force the ink through the conduits or supplyl pipes E, which;` areI packed in openings formed in the bottom of the reservoir. A single acty ing pump, having `vertically" actingA plunger 10, is provided foreach desired section lof the for-m, usuallya column, `two parallel g rows of these pumps being shown,the pump chambers for these pumps being formed in bars `11 extending lengthwise of the lreservoirF and united by cross'bars 12 to form a' frame open between thebars 11 to `receive shaft v15 carrying'.eccentricl, by-p GID which the frame, with its pump cylinders and plungers, is moved sidewise and the plungers 10 reciprocated, the eccentric 14 securing this sidewise vmovement of the frame through action on yokes on cross bars 12 of the moving frame, and thev vertical movement through action on vertical bars 15 mounted to slide vertically in these yokes, while held from sidewise -movement therein. These bars 15 form downward extensions of a bar 16 extending longitudinally of the reservoir above the pumps and which has arms 17 extending over the pump plungers 10 so as to eneage and operate the latter on the downward movement ofthe plate bar 16. This bar 16 also carries arms 18 extending on opposite sides of the bar, which arms carry pivot shaft 19 on which are loosely mounted rock arms 20, one for each plunger, having toes 21 extending inwardly under flanged heads 1 of plungers 10, and these arms 2O are formed of a sleeve and enclosed sliding stem, so as to be eX- tensible and spring-pressed apart by spring 22, the sleeve having a head 23 numbered to correspond with the column or section of the form supplied by its pump, and the sleeve being provided with a catch 2 adapted to engage teeth 3 for holding the rock arm in adjusted position, these teeth 3 being formed in the underside ofarms 24l projecting in opposite directions from central web extending upward from bar 16, the arms 24 preferably being` made separately and secured in slots in the web 25 by a cover bar 26, as shown. The endsof the arms 24 are tied together by rods 27 with spacing sleeves between the arms so as to form the parts. carried by bar 16 into a frame that reciprocates vertically in the frame formed by bars 11 and cross bars 12 and moves sidewise with the latter frame. 1' 4The shaft 13 be driven by and lsuitable means, but as shown is driven vby gear 28 and intermediate29 from gearA 30-on sleeve 31 loose on driving shaft 32 and carrying disk 33 having handle 34 mounted therein, this handle 34 having` a point 35 entering a recess in disk36 keyed to shaft 32,- so as to clutch disk 33 and sleeve 31 to the shaft for driving the pumps when the handle 34 is thrown into the position shown in Fig. 5, whiley by rocking handle 34 outward against its holding spring, sleeve 31 is released from shaft 32, and the pumps can then be run by hand at the speed desired for testing, cleaning or repair, or cleaning fluid may rbe run through the pumps and pipes, if desired. The driving shaft 32 may be driven from the distributing cylinder or other part of the press by any suitable gearing so as to secure the proper speed, or may be dirven by separate motor, if preferred.

The ink is preferably maintained at. the

rasaose desired level in the reservoir F by float control, the inlet pipe H being controlled by valve 36 under the control of float lever 37 and iioat 38, which parts may be of any suitable construction. Circulation of ink from the side of the pump frame at which supply pipe H enters is provided for by passages 39 connecting side troughs 40 with a central trough 41, with which connect-s a drainpipe 42, provision thus being made for draining the reservoir from troughs 40, 41, in which any sediment or thickened ink will collect and for washing the reservoir by running water or cleaning fluid therethrough. The reservoir is preferably provided with a hinged cover 43, as shown, by raising which access is had to all the heads 23 of the adjusting arms 20 for varying the supply of ink to any column or columns of the form.

The supply reservoir F is kept full yto the required level by the iioat control of branch pipes H, so that a constant suction supply to the pumps is thus maintained. The pump, chambers formed in blocks 11 and in which the pump plungers 10 move, are brought by eccentric 14 alternately into connection with the reservoir 4on the upward or suction stroke of the plungers 10 and intov line with the ports in the reservoir bottom connecting with pipes E for they downward or delive stroke of the plungers, and the' Vertical movement of the bar 16 and plunger operating` parts carried thereby is secured in proper time by the eccentric 1 4. A measured quantity of ink is thus delivered by eachA pump under fixed pressure at each stroke of the plungers 10. These valveless pumps aid materially in assuring the proper action of the pumps and their delivery of a fixed quantity of ink, and avoid the dilii'- culties incide-nt to handling ink with valved pumps. y

As described above, the lift of each plunger 10 on the suction stroke isl determined by the position of its rocking arm 20 which determines the time of engagement of toe 21 with plunger head 1, and the position of the arms-20 is readily adjusted by moving the numbered heads or finger pieces 23 sidewise. i

f 1n Figures f6 to 10 there is. shown a slightly modified construction of pumps and regulating means, the other parts of the apparatus being the' same as above described. In this case the plungers 1() and the blocks 11 containing the pump chambers of the two sets are actuated. by separate eccent-rics, the two blocks .11 being connected by cross plates 54 at opposite ends, which are vertically slotted to receive slidingblocks 55 `carrying eccentric sleeves 56m which run eccentrics'57'on shafts 58, so that the rotation of the eccentrics moves the bloc-ks 55, with the frame formed by plates 54 and bars 1l,

sidewise, and moves the blocks 55, with their eccentric sleeves 56, vertically. The pump plungers l0 carry yokes 59, the upper ends of Which are threaded on adjusting screws having finger pieces 61 extending upivard into convenient position for access When the cover is liftedl and preferably held in any adjusted position by springs 62 engaging the knurled side of the linger pieces. The 'adjusting screws 60 carry headsi63 engaging the eccentric rings 56 to raise the plungers 10 the length of the suction stroke or lift of the plunger, the amount of ink delivered thus being regulated by the position of the screws 60, which determines the lift of the yoke's 59 `and plungers 10 by the eccentrics. The eccentric shafts 58 may be rotated by any suitable means, b-ut are shown as geared together by gears 64 operated by gear 65 on shaft 66, which in turn,-

is driven through bevel gears 67 vfrom driving shaft 68 outside the reservoir F, and actuated from the press or otherwise in any suitable manner.

In this construction there is shown, also a convenient means for cutting out a Whole page of the inking, or such part thereof as the construction'may be designed for, by a single valve, which arrangement also is readily applicable to the construction shown in Figures l t-o 5, and above described. For this purpose each row of the conduits or supply pipes H connects with a circular valve chamber in which is mounted a rotating valve 69 extending over the Whole row of conduits H, or such part thereof as desired, and accessible from outside the reservoir for rotation, as by the squared head 70, shoivn in Figure 7. These valves 69 have transverse ports 7 and the bottom plate of the reservoir F is provided ivith tivo passagesv 8, 9, one connected With the pump chamber and the other with the reservoir, so that by turning a valve 69 into the position shown in Figures 8 and 9 the pumps in the rovv corresponding to the valve Will deY liver ink from the chamber through ports 8, 7, into the conduitsior supply pipes I-I, and by turning the valve into the position shown in Figure 10, the plumpsof its rou1 ivill be Clo-sed to pipes H, and the ink be circulated through ports 8, 7, 9, from the pump to the reservoir on the discharge stroke. The simple rotation o-f a valvev69, therefore, will cut out a page, or such portion of theinking as the apparatus may b@ designed for, Without interfering With the adjustment of the separate pumps.

The operation of the construction shown in Figures 6 to l0 will be substantially the same as that described in connection with Figures l to 5, except as will be understood from the drawings, so that no further description of o-peration is required.

l/Vhile the construction illustrated and decarrying a series of pump chambers and plungers, said pump chambers opening for suction and discharge in the line of movement of the plungers, suction and discharge chambers, a second frame movable transversely to the line of movement of the pump chambers, carried by the first mentioned frame and movable therein parallel with the line of movement of the plungers, means mounted in said second frame for operating the plungers, and a shaft extending through the framesl andfcarrying eccentric mechanism. for moving` said frames to shift the pump chambers for suction and discharge and operate the pump plungers. y

2. A multiple pump consisting of a frame carrying a Aseries of pump chambers and plungers, said pump chambers opening for suction and discharge in the line of movement of the plungers, suction and discharge chambers, a second frame movable trans-` versely to the line of movement of the pump chambers, carried by the first mentioned frameand movable therein parallel with the line of movement of the plungers, means mounted in said second frame for operating the plungers, and a shaft extending throughk the frames and carrying a single eccentric actuating both of saidframes to shift the pump chambers for suction and discharge and operate the pump plungers. i

3. A multiple pump consisting of a frame carrying a series of pump chambers and plungers, said pump chambers opening for suction and discharge in the line of movement of the plungers, suction and discharge chambers, a second frame movable transversely to the line of movement of the pump chambers, carried by the first 'mentioned frame and movable therein parallel with the line of movement of the plungers, means mounted in said second frame for operating the plungers, a shaft extending through the frames and carrying eccentric mechanism for moving said frames to shift the pump l chambers for suction and discharge and v operate the pump plungers, and means carried by Said frames for adjusting the stroke of the plungers to vary the amount of fluid delivered. f

In testimony whereof, I have hereunto set my hand.

BRUCE c. WHiTE.

Images