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The Tank-Headed Self-Feeding Brush: Soap in the Tank, a Plate to Meter It
Ernest N. Broderick, Indianapolis, Indiana · Public domain (expired patent)
Martin

Imeundwa na

Martin

6. Oktoba 2026NO
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The Tank-Headed Self-Feeding Brush: Soap in the Tank, a Plate to Meter It

Scrubbing a floor means going back to the bucket every few strokes. Ernest N. Broderick of Indianapolis received US 639,348, dated 19 December 1899, for a cleaning brush with a small tank on its perforated top, fed through a hollow handle from a hose; a perforated plate slid by a screw sets how far the holes open, and soap in the tank turns the water to suds — "a self-feeding brush." This rung works out how the sliding plate opens the holes, then builds the tank on a scrub brush and measures the flow at each plate setting.
Kati
About 4 hours

Maagizo

1

Open area of the plate

Inapakia daftari la Jupyter…
2

A scrubbing brush before it

The embedded blueprint holds two brush heads on a sprung holder. Broderick puts a water tank on the head and feeds it through the handle.
3

Read US 639,348

"When used for scrubbing, the hose can be connected to a hydrant, and thus supply the desired amount of water to the brush, making it unnecessary to dip the brush into the bucket or tub of water. In other words, my device is a self-feeding brush. Should I desire to use soapy water, I can insert through the openings 10 particles of soap or soap powder. In this way I get soapsuds, which I use in scrubbing as it is needed, keeping the brush constantly supplied."
4

Perforate the brush back

Drill fourteen 4 mm holes through the scrub brush's back between the tufts, in two rows 30 mm apart.

Vifaa kwa hatua hii:

Brashi ya kusuguaBrashi ya kusugua1 kipande

Zana zinazohitajika:

Kibano cha meza ya kaziKibano cha meza ya kazi
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Kalamu ya Wino wa KudumuKalamu ya Wino wa Kudumu
RulaRula
Miwani ya usalama iliyo waziMiwani ya usalama iliyo wazi
5

Make the sliding plate

Cut an aluminium plate 10 mm shorter than the back. Drill it through the back's holes, then file its end square. Rivet two guide strips to the back's top so it slides lengthwise.

Vifaa kwa hatua hii:

Bamba la aluminiBamba la alumini1 kipande
Rivet za chuma cha puaRivet za chuma cha pua1 kipande

Zana zinazohitajika:

Mkasi wa batiMkasi wa bati
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Seti ya rivetiSeti ya riveti
Nyundo ya rivetiNyundo ya riveti
6

Build the tank

Fold an aluminium box 50 mm deep to the back's size with a lid. Drill the lid for a 25 mm filling hole and a handle socket. Seal it to the back with silicone and screws.

Vifaa kwa hatua hii:

Bamba la aluminiBamba la alumini1 kipande
Rivet za chuma cha puaRivet za chuma cha pua1 kipande
Kizibo cha SilikoniKizibo cha Silikoni1 kipande
Skrubu ya mti #8 x inchi 1Skrubu ya mti #8 x inchi 11 kipande

Zana zinazohitajika:

Mkasi wa batiMkasi wa bati
Kibano cha meza ya kaziKibano cha meza ya kazi
Seti ya rivetiSeti ya riveti
Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Glavu za Kazi za NgoziGlavu za Kazi za Ngozi
7

Fit the adjusting screw

Run an M4 screw through a nut epoxied on the tank's end wall so its tip pushes the plate. Turn it to close or open the holes.

Vifaa kwa hatua hii:

Skrubu za mashineSkrubu za mashine1 kipande
Nati ya pembe sitaNati ya pembe sita1 kipande
Epoksi ya Sehemu MbiliEpoksi ya Sehemu Mbili1 kipande

Zana zinazohitajika:

Kekee cha BetriKekee cha Betri
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya bisibisiSeti ya bisibisi
8

Fit the handle

Fix 1.2 m of 15 mm copper tube in the socket with brass fittings. Fit a ball valve and hose connector at its top.

Vifaa kwa hatua hii:

Mrija wa shaba-njekunduMrija wa shaba-njekundu1 kipande
Viungio vya shaba-njanoViungio vya shaba-njano1 kipande
Vali ya mpiraVali ya mpira1 kipande
Utepe wa PTFE wa kuziba nyuziUtepe wa PTFE wa kuziba nyuzi1 kipande

Zana zinazohitajika:

Kikata bombaKikata bomba
Spana inayoweza kurekebishwaSpana inayoweza kurekebishwa
9

The patent drawing

US 639,348 drawing sheet, public domain (expired patent).
Hatua 9 - Image 1
10

Measure the flow at each setting

Connect the garden hose. Set the plate fully open, half and nearly shut, and catch the water for 30 s each in the jug. Then add a squirt of soap through the filling hole and scrub.
Hatua 10 - Image 1

Vifaa kwa hatua hii:

MajiMaji1 kipande
Sabuni ya Kastilia (ya majimaji)Sabuni ya Kastilia (ya majimaji)1 kipande

Zana zinazohitajika:

Mtungi wa kupimiaMtungi wa kupimia
Saa ya kupima mudaSaa ya kupima muda
Kipima-unene cha dijitali cha inchi 6Kipima-unene cha dijitali cha inchi 6
Bomba la bustaniBomba la bustani
11

A brush that floods, starves or leaks

Tank-headed self-feeding brush troubleshooting.

Flow

Loading...
12

History and honest limits

**Ernest N. Broderick** of Indianapolis filed US 639,348 on 6 February 1899; it is dated 19 December 1899. Rubber or leather strips seal the tank to the brush-top. Two hollow adjustable joints, ground to fit and clamped by a bolt, let the handle be set at any angle, for floors, walls, windows or dusting high furniture; with compressed air instead of water it blows dust away, and a mop or duster may replace the brush. **Honest limits.** Our handle is fixed; his joints are not built here. The notebook gives open area, not flow through a real hole. Your flows are the result.

Vifaa

14

Zana Zinazohitajika

18

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

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