|Publication number||US1056779 A|
|Publication date||Mar 25, 1913|
|Filing date||Nov 29, 1912|
|Priority date||Nov 29, 1912|
|Publication number||US 1056779 A, US 1056779A, US-A-1056779, US1056779 A, US1056779A|
|Inventors||John M Davidson|
|Original Assignee||Wm B Scaife & Sons Company|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (2), Classifications (5)|
|External Links: USPTO, USPTO Assignment, Espacenet|
J. M. DAVIDSON.
CLEANING APPARATUS FOR SWIMMING POOLS AND THE LIKE.
APPLICATION FILED NOV. 29, 1912.
i fl ED STATES PATENT OFFICE.
JOHN in. navmson, or r'rrrssuaen, PENNSYLVANIA, assrelvoaro WM. 3. SGAIFE & SONS COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION OF NEW JERSEY.
CLEANING APPARATUS FORSWIMMING-POOLS AND THE LIKE.
Specification of Letters Patent.
Application filed November 29, 1912. Serial No. 733,970. g
To all whom it may concern:
Be it known that I, JOHN M. DAVIDSON, a citizen of the United States, residing at Pittsburgh, Pennsylvania, have invented cer tain new and useful Cleaning Apparatus for Swimming-Pools and the Like, which the following is a specification.
. My invention relates to the art of dredgin and is particularly designed to accomphsh the cleaning of the bottoms of swimming tanks, and the like, where sediment collects, and it is desirable to remove this without emptying the water in the tank."
. .I have shown a form of apparatus em-. bodying my invention inthe accompanymg drawing, wherein- Figure 1 illustrates a broken section of a swimming tank with my cleaning device therein, and Fig. 2 is an under plan view of the cleaner nozzle. j
.It is well known that in tanks, such as swimming pools for example, there is a rapid collection of sediment or slime on the bottom, due in part to the matter washed from the bodies of the bathers, and in part to chemicals used in purif ing the water. Heretofore it has been consldered necessary in order to clean suchtanks to entirely empty the water therein. This is an expensive proceeding, because of the waste of water, the sus ension of the use of the tank, and the cost 0 heating a new charge of water. I
have discovered that the shme may be removed from the bottom of such a tank without removing the water, and without stirring up the sediment to contaminate the water..
It being understood that the bottom surface of a swimming pool is usually smooth and hard, as tiling, etc., and that the slime thereon is of an oily. nature and contains hair and such matter, it will be understood that if the slime can be. scraped ofi the bottom and then immediately removed without stirring, my objects can be attained. As shown in the accompanying drawings, I provide a rigid ipe B long enough to reach the'bottom of the tank A and carrying on the lower end a sucker head C, made something after the fashion of a pneumatic carpet sweeper head, but covered on the under side with a scraper D which is made of soft or even interferin rubber and in ribbed form, as shown at d, I
and which by means of slots and bolts 03 can be adjusted to proper relation to outlet- 0. This ribbed rubber partis designed to make the nozzle closely fit the bottom of the tank,
to prevent the entry of water from the rear attached to a exible pipe G and any convenient form of pump H, audit will be understood that in operation the pump withdraws from the tank only so much water as is necessary to wash in the slime accumulated in front of the sucker had as proceeds over the bottom. The check valve F allows the nozzle to be lifted out of the water without escape of the sediment al ready collected. By thism'eans I am able to entirely remove the slime without 'stirring or contaminating the water above, or removing any large' portion ofthe water, with the other use of the tank. Other a vantages will readily occur to those familiar with the art.
Having thus described my invention and illustrated its use, what I claim is:
1. In cleaning apparatus, a combined scraper and sucker head comprising a casing with an open nozzle, a rubber scraper slidably mounted on the rear and bottom of the casmg, an upwardly projecting shield on' the front and top of the' casin and a. check valve in the casing, substantlallyas and for the purposes described.
2. In cleaning apparatus fortanks, a combined scraper and sucker head comprising a casing with an open nozzle, a reslllent scraper mounted on the rear and bottom of the casing, an upwardl forward projecting shleld on the front oft e casing, as and for the purposes described.
JOHN M. DAVIDSON.
Jo. BAILY Brown, FREDK. STAUB.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3817382 *||Aug 5, 1971||Jun 18, 1974||Arneson Prod Inc||Pool cleaning device|
|US4776954 *||Nov 7, 1986||Oct 11, 1988||Spooner Est||Apparatus for cleaning a body of liquid|
|U.S. Classification||15/1.7, 15/245, 134/168.00R, 15/401|