US768605A - Apparatus for pouring and filtering. - Google Patents

Description

PATENTED AUG. 30, 1904. B. KELLER & A. FERRELL. 4

APPARATUS FOR POURING AND FILTERING.

, APPLICATION rum) MAR. 1, 1904.

no MODEL.

' 3 SHEETS-SHEET 1.

WITNESSES 4 L I JNVENTO'RSL I p r 2; @dwmf A a w 91 44141 v A Attorneys 1 PATENTED AUG 30, 1904. E. KELLER & A. FERRELL. APPARATUS FOR POURING AND PILTERING.

APPLICATION FILED MAR. 1, 1904.

3 SHEETS-SHEET 2.

N0 MODEL.

[NVENTORS I WITNESS-ES QM may a CUM! o' zmld 4 a2 Attortey) No. 768,605. 7 I PATENTEDAUG. 3 0, 1904. V E. KELLER A. FERRBLL.

APPARATUS FOR POURING AND FILTERING.

APPLICATION FILED MAB. 1, 1904.

a SHEETSSHBET 3- H0 MODEL.

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UNITED STA ES Patented August 30, 1904.

PATENT OFFICE.

APPARATUS FOR Pounme. AND FKILTERING.

SPECIFICATION forming part of Letters Patent No. 768,605, dated August 30, 1904.

Application filed March 1, 1904.

- ful Improvements in Apparatus-for Pouring and Filtering; and we do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon.

This apparatus relates to improvements in appliances for facilitating the handling of laboratory apparatus, and more particularly for facilitating the pouring of solutions from beakers or other vessels in which the solutions have been formed and the precipitate allowed torsettle, although the apparatus maybe employed for handling vessels for other purposes.

In laboratory manipulations, especially for the determination of the various metal constituents of samples-copper, for i-nstance it' is customary to dissolve said samples or form solutions therefrom in beakers, which beakers are subsequently set aside in order to permit of a gravity separation or settlement of the undissolved or heavier elements, the solutions being subsequently poured out of the beakers through filtering-funnels into other beakers.

The pouring operations must be of necessity carefully performed, the solution being guided into the funnels usually by glass rods held against the top of thebeakers and projecting beyond the'pouring-lips. The pouring operations are found to consume a great deal of time; and the objects of the present invention are to provide an apparatus for facilitating this step both by reducing the time required and by performing the pouring operations in such manner as to facilitate the passage of the solutions through the funnels and to prevent the agitation of the solution during the pouring operations whereby the clearer portions are first passed through the funnel and the heavier or solid portions allowed to remain in the beakers until the last.

Referring to the accompanying drawings, Figure 1 is a perspective iew, partially broken away, of an apparatus embodying the present invention. .Fig. 2 is an end elevation look- Serial No, 196,071. (No model.)

ing at the right-hand end of the apparatus.

Figs. 8 and A are sectional views showing the beakers in normal and in pouring positions. Fig. 5 is a top plan View of a portion of the apparatus.

Like letters of reference in the several figures indicate the same parts.

In said drawings the letter A indicates a 'baseof any improved type, but preferably arranged to support end pieces B, between which is a vertically-adjustable rack C, having seats or apertures therein for the reception of the funnels or filters D. The rack U is made vertically adjustable, preferably by being provided with end guides 0, workingin guldeways formed in lugs 0 on the end frames,

and it is adapted to be held in adjusted posi-- pouring-frame, preferably consisting of end pieces F, connected together by parts extending longitudinally of the frame A and adapted to constitute holders for the reception of the. pouring-beakers G. I In the preferred constructionthe end pieces F support between them a longitudinally extending' frame H, having apertures therein of such size as to receive beakers of the largest dimension, said beakers passing down through the apertures a considerable distance and being held at their bottoms between side pieces H, also extending between and connecting the ends F of the pouring-frame. The beakers are adapted to seat upon an adjustable bottompiece K, preferably adjusted by means of thumb-nuts and screws L, held in the. end pieces F and passing through the bottom pieces K, as shown clearly in Figs. 3 ,and 4. By forming the bottom of the pouring-frame adjustableit may be adjusted for the reception of different-sized beak ers, the pouring-lips of which may as a consequence all be brought into proper pouring position, so as to deliver the solutions correctly in the funnels or filters.

For holding the beakers in position in the pouring-frame during the pouring operation they are bridged by pouring-rods M, of glass, which at one end project beyond the pouringlips of the beakers and at the other ends simply rest on the rear edge of said beakers, the latter end of said rods being preferably provided with a rubber sleeve-such, for instance, as indicated at m. The rods M are held down in position by spring-pressed clamps l, the rear ends of which are mounted on screwstems 92, held by the longitudinal frame H or an upward extension h thereof, said clamps being pressed downwardly by springs O and thumb-nuts O, the arrangement being such that said clamps may be readily swung over the beakers, so as to engage the rods, or to one side, so as to free the rods and beakers to permit of the ready insertion or removal of the latter. The spring is normally set to exert sufficient pressure to hold the beakers in position when turned up for pouring; but at the same time the clamps may be readily manipulated by hand for freeing the beakers without the necessity of changing the screw adjustment of the springs.

At one end, and preferably outside of the frame B, the journal for the pouring-frame is provided with a hand-wheel Q, by which the frame may be turned from the position indicated in Fig. 3 to that indicated in Fig. 4:, and in order that this movement may be effected steadily and without undue jarring, such as would tend to disturb the solutions, the handwheel is preferably provided with a series of handles and, further, in order to prevent retrograde movement a ratchet-wheel R is provided on the journal for cooperation with a pawl S on the end frame B. Thus the pouring-frame and beakers may be turned up to any desired angle and left for the draining of the solution, and when it is desired to return the pouring-frame to normal position the pawl is thrown out of engagement with its wheel and held out by frictional contact with a projection from which it may be readily freed when it is desired to again hold the frame in tilted position.

For convenience in handling a heavy pouring-frame it is found desirable to provide a counterbalance, which may be most conveniently arranged in the form of an adjustable weight T'on an arm T, attached to one of the journals and extendingon the opposite side thereof from the bearing-frame.

In practice the various liquids and ingredients are placed in the beakers and thoroughly stirred to form the solutions, and if this step is performed before the beakers are placed in the pouring-frame they are then placed therein either before or after the solutions have been allowed to settle, and at the proper time when the solutions are to be poured therefrom the frame is given a partial rotation, so as to tilt the beakers up as a body and permit the solutions to pour or trickle from all of the beakers down into the funnels or filters. The axis about which the beakers turn is located at approximately the pouring-point, and as a consequence funnels or filters of small size may be employed with the assurance that the solutions will be discharged into the same properly with the beakers at any inclimition. In other words, the rotation of the pouringframe to a greater or less extent does not change the position of the pouringpoint, and by the adjustments before described said frame may be set to accommodate beakers of any ordinary dimensions.

\Vhen the solutions have been poured from the beakers, there may still remain in said beakers sediment and ingredients which must be finally discharged into the filters or funnels, and with the present arrangement the breakers may be left in the position shown in Fig. 4, while a small hose or jet of water is used to flush out such sediment at the pouringpoint. This operation may be mrformed most expeditiously, inasmuch as the solul ions will have been poured from all of the beakers and they will all be ready for flushing at the same time, whereas by the old process each beaker in turn was poured and flushed out before the next beaker was given attentioi'i.

In the use of the term beakers herein it will be understood that we do not wish to be limited to the use of vessels technically known as beakers, as any other vessels may be handled, and the apparatus capable of use for other manipulations than the merchandling of such vessels in laboratory work.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In beaker-handling apparatus the combination with the main frame, of a pouringframe having a series of beaker-holders arranged in a single line, said frame being journaled on an axis located at approximately the pouring-point parallel with said line of bolders and adapted when turned on said axis to impart a uniform angular movement to the beakers mounted in said holders whereby the liquid contents of said beakers may be evenly and uniformly discharged; substantially as described.

2. In beaker-handling apparatus, the combination with the main frame of a pouringframe having a series of beaker-holders, said frame being journaled to turn on an axis substantially coincident with the discharge-pom ts of the beakers mounted in said holders and means for turning said frame; substantially as described.

3. In beaker-handling apparatus, the combination with a funnel-support, of a pouringframe having a series of beaker-holders arranged in a single line, said frame being journaled on an axis above said funnel-support, clamps on said pouringframe for holding beakers in the holders when the frame is turned, means for turning said frame and means for holding the frame in any desired angular position of adjustment; substantially as described.

4:. In beaker-handling apparatus. the combination with the main frame, the pouringframe journaled therein and having the series of beaker-h0lders located at one side of the pivotal axis of the frame, a handle for turning said frame and a retainer for holding said frame in any desired position of adjustment about said axis, of a funnel-rack located below the axis of the frame and a support below said funnel-rack for beakers into which ,thesolution is discharged by the funnel; subrack, ofthe pouring-frame journaled in said main frame above the funnel-rack, a series of beaker-holders 1n sald pouring-frame and arranged 111 a single line and indlvidual sprlngpressed clamps for retaining the beakers in the pouring-frame; substantially as described. 7 In beaker-handling apparatus, the combinationwith the main frame, of apouringframe journaled therein, a series of beakerholders arranged in said pouring-frame and an adjustable bottom for said holders whereby beakers of different dimensions may be mounted therein; substantially as described.

8. In beaker-handling apparatus, the combination with a vertically-adjustable funnelrack, of a pouring frame journaled on an axis above said rack, beaker-holders arranged in a single line in said frame at one side of the axis and an adjustable bottom for said'beakerholders whereby beakers of different dimensions maybe mounted therein and their pour- Witnesses:

' WM. L. FLYNN,

JAMES J. MULLANEY.

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