US1166757A

US1166757A - Means for disinfecting dumb-waiter shafts and the like.

Info

Publication number: US1166757A
Application number: US4132315A
Authority: US
Inventors: Daniel Fraad
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-07-22
Filing date: 1915-07-22
Publication date: 1916-01-04
Anticipated expiration: 1933-01-04

Description

D.'FRAAD. v

MEANS FOR DISINFECTING DUMB WAITER SHAFTS AND THE LIKE.

APPUCATION FILED JULYZZ, 1915.

Patented Jan. 4, 1916.

- COLUMBIA PLANQGRAPH go-,WASHINGTON, D. C.

DANIEL rnnnn, or Bnoo nY new Yort'x.

eans Eon nrsrnrncrine pum s-warren sr ar'rs enn'rn n inn To allwhom it may concern Be it known that I, DANIEL FRAAD, a citizen of the United States of America, re-

sidin at Brookl n Kin s count 1 and State- 23 7 b 7 of New York, have invented certain new and useful Improvements in lvleans for Disinfectlng Dumbamer Shafts and the like,

' of which the following is a full, clear, and

exact description.

This invention relates to an apparatus for disinfecting shafts, such as the dumb-waitershafts of apartment houses, but my improvement may, by slight rearrangemenhbe made adaptable for use in connection with public toilet-rooms, stables, etc.

Theobject of invention is to provide effective means whereby a disinfecting medium can be introduced into a dumbwaiter shaft or the like to counteract the effects of gases or deleterious odors arising from the garbage which is usually passed through the shaft on the dumb-waiter, from the several apartments having access to the shaft. I

My improved device is of course adapted to disinfect such shafts against any impurities which may find their way into the shaft.

One of the features of my invention is the diffusion of the disinfecting medium by a plurality of air-blast devices, special means being provided to produce such air-blasts.

I will now proceed to describe my invention in detail, the essential features of which will be summarized in the appended claims, reference being had to the accompanying drawings, forming part hereof; wherein' Figure 1 is a diagrammatic sectional view, broken away, of a dumb-waitereshaft having my improvement installed therein; Fig. 2 is an enlarged vertical sectional view of a portion of my improved device; and Fig. 3 is a side view, on a reduced scale, looking from the left in Fig. 2. I

In the accompanying drawing, a dumbwaiter-shaft is indicated by 1, and the dumbwaiter, which travels'in the shaft, by 2; a plurality of apartments are indicated by 3, 1, 5, 6, 7 and 8, and 9 indicates the opening or door at each floor communicating with the shaft. The numeral 10 indicates the basement, and 11 the opening in the shaft at the basement. V p

12 indicates a shed or room on the roof with which most apartment buildings are usually provided.

One feature of my improvement comprises Specification of Le tters IEfatent.

stand-. pipe. 13, leading from a tank 1 1 in theshed- 12 tot-he basement 10, the said. pipe being preferably located against one of the side-walls of theshaft, as shown in 'Fig. 3. The tank 1 1 is arranged to contain a suitable disinfectant, in liquid form, and to deliver same to the pipe 13, a valve 15"being employed to control the flow of the liquid.

' Within the pipe 131 place a suitable, absorbent 16 (Fig. 2) which will become impregnated or soaked with the disinfectant. The disinfectant will, by natural process of evaporatiom-pa'ss through the openings 17, in the pipe 13 and into the shaft 1.

At intervals throughout the length of the pipe 13, I place catch-basins or cups 18 which are also filled with an absorbent '19. Eachset of openings 17 haslocated adjacent theretoa catch-basin lS. -A set of openings '17 and a catch basin 18 are located preferably opposite each pair of dumb-waitershaft openings 9, as shown in Fig. 1, the said sets being preferably alternated in position.

The function of thebasins 18 is to catch any of the disinfectant that may drip through the openings 17. Should the drippings be excessive and saturate the absorb- Paten dn 519 6. Application filed. July 22,1915. s riain aisas. I

ent 19 inthe cups 18, the surplus liquid will find its way back into the pipe 13 through a passage 20 (Fig. 2). At the bottom of the pipe 13, I place a pan 21 to catch any of the disinfectant that may, in'liquid form, find its way to the bottom of the shaft.

A further feature of my invention consists of means to diffuse the disinfectant.

through the shaft. fectant I employ air-blasts supplied by suitable mechanism preferably operated by the movement of the dumb-waiter 2. I preferably employ a plurality of bellows 22, each To diffuse the disin-v of which, by means of a duct 23, is connected i to each catch-basin 18; that isto say each basis 18 has connected thereto a bellows 22. Each bellows may be secured to the adjacent wall of the shaft or to the pipe 13. To operate the bellows, I provide the dumb-waiter with a rail 24 wide enough to actuate all of the bellows 22. Each bellows carries an arm 25'provided with a roller 26 located in the path of movement of the rail 24k. A spring 27 keeps the bellows normally expanded or extended. When the rail 24: strikes the roller 26, either upon theupward or down ward movement of the dumb-waiter, the movable member 28 of the bellows will be forced inwardly thereby forcing a blast of air into its attached basin 18, Which Will agitate the absorbent contained in thebasin and the fumes Will escape through the top thereof into the shaft 1, thus diffusing the disinfectant. Each time the dumb-Waiter is operated up or down, the bellows 22 will automatically be operated, thereby forcing a blast of air into the basins 18. To prevent the manipulation of the controlling valve 15, excepting by the proper person, It may pro vide the same with a removable handle, or I may lock the same.

l iaving now described my invention, What I claim and desire to secure by Letters Pattent is: i

l. A disinfecting apparatus, consisting of a pipe arranged to receive a disinfecting medium, said pipe being provided with openings, and a catch basin adjacent said openings.

2. A disinfecting device, consisting of a pipe provided with perforations, a basin adjacent thereto and in communication With said pipe, and means to force air into said basin.

3. A disinfecting device consisting of a receptacle provided with openings at interals throughout its length, an auxiliary receptacle adjacent each set of openings, and means to force air into said auxiliary receptacles.

In combination With a dumb-Waiter, a shaft therefor, a receptacle Within said shaft arranged to receive a disinfectant, an auxiliary receptacle also arranged to receive a disinfectant, and means operable by the movement of the dumb-Waiter to force air into the auxiliary receptacle.

In combination with a dumb-Waiter, a shaft therefor, a stand-pipe Within said shaft extending through substantially the ength thereof, a supply tank for said pi ae, purality of groups of alternately posi- 'iozed openings in said pipe, an absorbent material. in said pipe, means to introduce a liquid disinfecting medium into said pipe, and a catch-basin adjacent each set of openings arranged to receive any of the liquid oisinfectant that may drip through said openii'igs, there being a duct leading from said basin to said pine.

in combination with a dumb-Waiter, a shaft therefor, a standpipe Within said shaft extending through substantially the length thereof, a supply tank for said pipe, a plurality of groups of alternately positioned openings in said pipe, an absorbent material in said pipe, means to introduce a liquid disinfecting medium into said pipe, a

catch-basin adjacent each set of openings arranged to receive any of the liquid disinfectant that may drip through said openings, there bein a duct leading from said lasin to said pipe, and means to force air into said catch-basins.

7. in combination with a dumb-Waiter, a shaft therefor, a stand-pipe Within said shaft extending through substantially the length thereof, a supply tank for said pipe, a plurality of groups of alternately positioned openings in said pipe, an absorbent material in said pipe, means to introduce a liquid disinfecting medium into said pipe, a atoll-basin adjacent each set of o enings aranged to receive any of the liquid disinectant that may drip through said opengs, there being a duct leading from said asin to said pipe, and means operable by re movement of the dumb-Waiter to force lir into said catch-basins.

8. in combination with a dumb-Waiter, a t therefor, stand-pipe Within said iaft extending through substantially the *ngth thereof, a supply tank for said pipe,

pi rality of groups of alternately posi tioned openings in said pipe, an absorbent mater'al in said pipe, means to introduce a liquid disinfecting medium into said pipe, a catch-basin adjacent each set of openings arranged to receive any of the liquid disinfectant that may drip through said openings, there being a duct leading from said basin to said pipe, and means operable by the movement the Cl11111i3-Wfilt6I to agitate the disinfectant Within the catch-basins.

9. In combination with a dumb-Waiter, a

shaft therefor, a stand-pipe Within said shat-t arranged to receive a disinfectant,

atch-basins adjacent said stand-pipe, a belows communicating with eacn catch-basin, ,nd means carried by the dumb-Waiter to perate said bellows.

10. In combination With a dumb-Waiter, a shaft therefor, a stand-pipe Within said shaft arranged to receive a disinfectant, catch-basins adjacent said stand-pipe, a bellows communicating with each catch-basin, means carried by the dumb-Waiter to operate said bellows, and a spring to restore the bellows to normal condition after each actuation thereof.

Signed at New day of July, 1915.

York city, N. Y. this 1 DANIEL FRAAD.

Witnesses MAURICE BLOCK,

EDWARD A. JARVIS,

Copies Of this patent may be obtained for five cents each, by addressing the uommissioner 0f Eatents= Washington, D. C.