US1769308A - White-water sampler for paper-making machines - Google Patents

Description

July 1-, 1930. c. FKRHODES' 1,759,308

WHITE WATER SAMPLER FOR PAPER MAKING MACHINES Filed Avg. 10, 192 2 Sheets-Sheet J INVENTOR July 1, .1930

c. F.' RHODES WHITE WATER SAMPLE-R FOR-PAPER MAKING MACHINES Filed M '10, 1 2 Sheets-Sheet A TTZR/VE YJT Patented July 1, 1930 I UNITED sTA Es CHARLES Fa nnonns, oF'eLEnsrALLs, nnw onK, ASSIGNOB. To; INTE NATIONAL rArnncoMPAN A ooRrone'rIoN or rinwyoe r 1 wHI'rE wArnR SAMPLER- Fen PAPER-MAKING-MACHINESJ I fAp plieati on filed August V10, 1928. "semi to. 298,823.

This invention relates to, What are known as automatic samplers for taking at periodic intervals, uniform quantitiesor samplesof a substance or materiahwhich samples on being mixed together, will givean'a'verageof the quality and condition of the material for a given period of time.

Theinvention has reference more particu larly toan automatic sampler designed" for use in connectionwith paper makingmachines, for taking samples of the so-called White water which usually flows from the paper making machine through a weir or conductor to waste,'it being'very desirable for Y the properand economicoperation of the paper machine that the attendant be informed as to the nature and amount of the constituents, such as clay, pulp, fiber, etc, etc, that is o passing away from the machine in the white Water, to the end that the proper steps may be taken in the preparation and handling of the stock and in the adj ustment'and operation of the machine to prevent undue waste.

In accordance'with the present invention, a mechanism of simple form and efficient coni struction and operation is provided which is adapted to be placed in operative relation to the white water weir of, a paper making ma chine, so that. said mechanism may be op-er;

" ated, preferably by the "flow of said. water, to

automatically take uniform quantities or samples of the same periodically, which sampics on being, mixed together, 'will'give an average of the condition of the water coming from the machine for a given period; and in the specification to follow, the said mecha nism will be described in detail, and the novel features thereof will beset forth in the appended claims. I In the accompanying drawingsz I Figure 1 is a top plan view of the improved machine; and i r v r Fig. 2 isa side. elevation of the same.

Referring to the drawings:

The machine comprises as" its main elements, adriving member 1,'adapted in the present case to be operated by the flow of the.

white water, a sampling member or dipper 2' e niovable 'do wn into the'flowing water to take 3 .0 a sample'thereof, and then upwardly to elevate the sample so that the successive samples i can be, mixed together, and suitable power transmitting connections 3 between the driv mg member and dipper toimpart to the latter its periodic dipping motions. These parts are mounted in and sustained by a suitable rectangular open frame comprising longitudinal side frame bars 5 and transverse end connecting framebarsii, 1 I I r i The driving'member 1 is, in the present instance, in the form of a water wheel consisting I of two spaced circular. side walls or discs 7 anda series of radial paddles 7 fixed toand extending" between said walls adjacent the peripheries of the same, which water w heel is fixed to a horizontal transverse driving shaft 9 rotatably mounted at its opposite ends in bearings 10 sustained by the side frame bars near one end thereof. The form and arrange ment of these'parts is such that When the frame isset in position over the weir through which the white water flows from the paper making machine, the waterwheel will beinimersed at its lower side a 'suffioientdistance in the flowing waterto be rotated thereby. 7 Near one end the drivingshaft has fixedto it a bevelled pinion 11 meshing with a bevelled gear 12 on the endiof a longitudinally extending power transmitting shaft 13, which shaft'is operatively connected at its opposite end to the dipper 2 in the manner presently to be describedin detail, to operate the same. i The shaft 13 ismounted adjacent the bevelle'd inion 12 in aib'e'aring 14 movablysustaine to rock on a horizontal transverse pivot bolt 1e supported in a bracket plate fixed to the side of the longitudinal frame bar, from which point theshaft extends at an-upward inclination, vas shown in Fig. 2, and is journalled at its opposite, end in a similar 90 bearing 15 mounted to rock on a horizontal journal arm 24: on oppositesides of the cup itsournal' on the carrier t struct-ion and arrangement of the parts described, the rotary motion imparted to the driving shaft by the water wheel, will be transmitted to the" driven shaft at reduced speed, so that in the relative rapid motion of the water wheel, the driven shaft willbe very slowly'rot'ated, in order to cause the sampling member to'dip into the water at the proper eriedic intervals.

The driven shaft 19 has fixed to, ita collar 21 having a hole through it in whichextends a rod 22 held fixed in place in the collar by a pin 23, and extendir'ig at right anglgs to the shaft, which rod constitutes a carrier for the dipper 2 before referred to, and which carrierin the. rotation of the driven shaft will be revolved ina vertical plane about the axis of the shaft. The dipper 2 is in the present instance in the form of acup provided near its upper end at diametrically opposite points with alined bearing holes in which is loosely mounted a lateral journal arm 2d on the end of the rod 22, whereby the cupis supported by the carrier so that it rock rela- 1 tively thereto about an axis parallel with they driven shaft, collars 26 being fixed to the to confine the same thereon. a

In the revolution of the" cup by the rotation of the driven shaft, it will by'gravity assume an upright lBCfilVlllg position, as

shown in Fig. 2, and when revolved in the direction of the arrow in said figure, the cup will be carried downwardly and will be immersed in the stream of white water flowing through the weir beneath, and becoming filled with the white water, it will be elevated by-the continued movement of the carrier. Means are provided for causing the automatic discharge of the contents of the cup when elevated, so that the successive samples of Water taken from the stream in the successive cycles of operation of the cup, may be mixed together. To accomplish this object, the'cup has fixed to it on one side, a linger 27 in position to engage a fixed stop arm 28' projecting laterally from a rod 29 extending upwardly from the side bar 5 of the frame, the said stop arm being arranged in the path of movement of the cup as it is carried upwardly and reaches the hi hest point ofits .travel. lVhen thefinger engages said stop arm, the continued movement of the cup byits carrier will cause the cup to rock on discharging position. as shown by dotted lines in Fig. 1, whereby the contents of the cup will be discharged into a trough '30 on the frame leading to a suitable receptacle or pail 31 supported at'the side of the frame. As the cup continues'on its way, thefinger will be disengaged from the stoparm, whereupon the cup will right itself by gravity, ready to receive another chargeof'water as it is again lowered to thefio'wmg stream.

actions'will likewise wary. In this way, the

samples collected for a given period, say 24: hours, willgi'vea' very accurate average of the quality and condition of-white water covering that period, which will beanalyzedas usual togive the necessary information to the. attendant to enable him to control the condition of the stock, and the operation of the paper making machine under the most desirable and economical conditions.

lVhile' the invention ,has been described with particular reference to its employment in taking samples of thewhite water flowing frompaper making machines, it is not intended that theinvention be limited to such use, as it is applicable as well for taking samples of other materials used in the operation ofthe paper making machine, for instance the screen rejections, and the inventionis applicable also for taking samples of other materials in other connections. p In the use of the'devicein connection with Japermaking machines,iit is perhaps preferable to operate 'the driving. member or water wheelby the flow of the liquid to be sampled, so that the samples will be taken in frequency, dependent. upon the rate of said flow. Butgood resultscan be obtained by operating the driving member'by means independent of the material to be sampled, since the water wheel. can be supported free of said material and operated by a water jetimpinging upon the wheel, orby other independent means. i l I In the foregoing description and accompanying drawings, the invention has been set forth in the particular detailed form and arrangement of the parts which in practice have been found to answer toa satisfactory degree the ends to be attained. It will be understood, however, that these details may be variously changed and modified by the" skilled mechanic without departing from the limits of the invention; and further it will claim is;

' 1. In sampler for use inconnection with paper making machines, the combination of rate of flow of the same varies.

2. In a sampler for use in connection with paper making machines, the combination of a driving member adapted to be operated by the flow of liquid material to be sampled, a dipper movableperiodically to take samples of the flowing material, and connections between the driving member and dipper to impart the periodic movements to the'latter.

3. In a white water sampler, the combina-' tion of a driving member adapted to be operated by the flow of white water, a dipper movable periodically" to take samples of said water, and transmitting gearing between the driving member and dipper to impart the periodic'movements to the latter.

4. In a sampler for materials, the combination of a driving member, a dipper to take samples of the material, an up and down movable carrier on which said dipper is mounted to shift relatively thereto from receiving to discharging position, means whereby the carrier is operated by the driving member to lower the dipper to the water to take a sample thereof and then elevate the same, and means controlled by the movement of the carrierto shift the dipper relatively thereto to discharge said sample. V H

5. In a sampler for materials, the combination of a driving member, a carrier rotated by said driving member, a dipper rockable on said carrier from' receiving to discharging position, and adapted in therotation of the carrier to be moved down to take a sample of the material and then elevate the same,

and a fixed stop in'the path of the dipper and serving, when engaged by the dipper, to rock the same on its carrier to discharge said sample.

' to elevate the same, and a fixed stop posi tion to be engaged by the dipper in its elevated position and serving to rock the dipper to discharging position.

7. In a sampler, the combination of a horizontal rotary driving shaft, awater wheel thereon, a horizontal rotary driven shaft parallel tothe driving shaft, a worm wheel on the driven shaft, a longitudinally extending transmitting shaft geared at one end to said driving shaft and having a worm on its other end meshing with the'worm wheel, and a dip- 1 per revolved by the driven shaft. 8. Ina sampler, the combination of a hor1- zontal rotary driving shaft, a water wheel thereon, ahorizontal driven shaft parallel to V the driving shaft, a worm wheel thereon, a bevelled pinion on the driving shaft, a longitudinally extending transmitting shaft, a bevelled gear on one end of saidtransmitting shaft meshing with the said bevelled pinion, a worm on theother end of the transmitting shaft engaging said worm wheel, a carrier rotated by the driven shaft, a'dipper pivoted to'the carrier to rock fromreceiving to dis.-

charging position, and a stop in position 'to be engaged by the dipper to move it to discharging position.

9. In a sampler, the combination of a supporting frame, a horizontal driving shaft mounted in bearings on said frame, a water wheel on said shaft, a bevelled pinion on said shaft, rockable bearings sustained by said frame, a longitudinally extending transmit ting shaftrotatable in said roackable bear- Y ings and geared at one end to the driving shaft, a horizontal rotatable driven shaft mounted inbearings on the frame and geared to said transmitting shaft, and a. dipper operated by-said driven shaft to move down to the water to take a sample and then upwardly to elevate said sample.

10. In a sampler for materials, the combi' nation of a supporting frame, a driving member rotatably mounted in'said frame, a dipper revolubly mounted in the frame at a point distant from the driving member and movable downwardly to the material to be sampled and upwardly to elevate a sample thereof, a power transmitting shaft extending transversely of the axis of the driving member from the latter to the dipper, gearing operatively connecting the driving memher to the shaft to rotate the latter, and gearing operatively connecting the shaft at its opposite end with the dipper to revolve the I I latter.

11. In a sampler, the combination of an elongated portable supporting frame formed with side bars spaced from each other to leave an opening in the frame, a water wheel rotatablymounted on said side bars and proframe over a stream of the material to be sampled, the water wheel will be immersed in said stream, and the dipper will be enabled to enter the stream in its dipping actions.

Intestimony whereof, I have affixed my signature hereto.

CHARLES F; RHODES.

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