DE3507659A1 - METHOD AND DEVICE FOR TAKING OFF WATER SURFACES - Google Patents

Description

HOEGER ₁ SfELLRECHT & PARTNER 3507659

PATENT LAWYERS

UHLANDSTRASSE 14 c ■ d 7000 Stuttgart 1 - 3 -

A 46 537 m Applicant: Aquanaut (Proprietary) Limited

m - 212 107 Whitworth Road

February 27, 1985 Heriotdale, 2094

Transvaal South Africa

Description:

Method and device for skimming off water surfaces

The invention relates generally to the skimming of water surfaces to remove leaves and debris, which swimming in the water, for example in swimming pools.

In particular, the invention relates to a method for skimming the surface of an amount of water into which a A stream of water flows from a treatment plant, causing water to be at the surface of the amount of water, to flow over a floating weir and through a leaf trap. The invention also relates to a Apparatus for carrying out this process.

At present, the water surfaces of swimming pools are becoming automatically skimmed off in one of the following two ways and thereby cleaned: The first way leads over one floating weir flap that leads to a suction shaft from which water is sucked off by a pump. Of the second way includes a floating skimmer, which is operated by water, which in turn is operated by a suction hose from an underwater cleaning device flows. When the first method is used, the suction hose may not be in action. at Using the second method, part of the suction power is used to operate the skimming device, so that

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A 46 537 m .... ■> - 4- ~

February 27, 1985:.: ..- - .. ·· .. '-'- ~ ₃₅₀ 7659

-H- there may be a loss of cleaning performance.

It is the object of the invention to provide a further, alternative
Possibility of skimming off water surfaces
to specify.

According to the invention, this possibility is that the
The water flow is used to pump water out of a space into which it can flow through the weir and through the leaf trap.

In a preferred embodiment, a swimming pool is siphoned off by drawing water from a filter system
passes through a nozzle in a box with a weir flap. The nozzle is directed into a feed pipe and sucks water out of the box. Thus water flows over the weir into the box and gets through a leaf trap.

The water flow used according to the invention can be a jet pump or operate a turbine, the latter in turn driving a rotary pump.

An apparatus for carrying out the invention
Procedure is characterized by the following features:
a skim box, a floating weir, which the
forms the upper edge of one side of the box, an inlet to the lower part of the box, an outlet from which
lower part of the box, a nozzle connected to the inlet and a feed line connected to the outlet
in the path of the water emerging from the nozzle.

The following description of preferred embodiments the invention is used in conjunction with the accompanying drawings for further explanation. Show it:

Fig. 1: a view of a skimming device
according to the invention;

A 46 537 m "'-'" - 'S' -

m - 212

February 27, 1985 3507659

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FIG. 2: a sectional view along the line 2-2 in FIG. 1; FIG.

Fig. 3: a sectional view along the line 3-3 in Fig. 1 and

Fig. 4: another embodiment of the invention in a view similar to FIG. 3.

In the embodiment according to FIGS. 1-3 there is a skimming box 10 provided with a weir flap 11 and with arms 12 below With the aid of mounting blocks 13 made of foam rubber attached. A leaf basket 14 is provided inside the box 10. Under the leaf basket 14 there is a nozzle 15 and a Feed line 16 leading into the swimming pool.

The box 10 is on the side of the swimming pool with the aid the cushion 13 is mounted. The nozzle 15 is flexible via a Line 17 connected to an inlet for the swimming pool. In the embodiment shown, the size of the nozzle is adjustable.

A chlorine tablet is located near line 16

Starts up water which flows through the nozzle 15, Water from the box 10 and expels it through the pipe. The line 16 is provided with an adjustable outlet 18 which is arranged and adjusted to create a circular flow of water around the swimming pool will.

In the embodiment according to FIG. 4, the nozzle and the feed line are replaced by a turbine 20, which is connected to the Inlet is connected to the swimming pool. The turbine 2 drives a centrifugal pump 21, which water from the Box 10 sucks.

Claims (1)

HOEGER ₁ LAW & PARTNER 3507659 PATENTANWÄLTE UHLANDSTRASSE 14 cD 7000 STUTTGART 1 Α 46,537 m Applicant: Aquanaut (Proprietary) Limited m - 212 107 Whitworth Road February 27, 1985 Heriotdale, 2094 Transvaal South Africa Patent claims: 1. Method of skimming the surface of a Amount of water into which a stream of water from a treatment plant flows, with water at the Surface of the amount of water is caused by a floating weir and by a leaf trap to stream characterized in that the water flow is used to To pump water out of a room into which it can flow over the weir and through the leaf trap. 2. The method according to claim 1, characterized in that a jet pump is actuated by the flow of water will. 3. The method according to claim 1, characterized in that a turbine is operated by the water flow, which in turn drives a rotary pump. 4. Device for performing the method according to Claim 1 or 2, characterized by a skimming box (1Q), a floating one Weir (11), which forms the upper edge of one side of the box (10), an inlet (17) into the lower area of the box (10), an outlet (18) from the lower area of the box (10), one with the inlet (17) connected nozzle (15) and one with A 46 537 m · - · 2 - m - 212 ■ - ■.: - February 27, 1985. .. · .. ■ · .. · .- ■ 3507659 • 2- feed line (16) connected to outlet (18) in the path of the water emerging from the nozzle (15).