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The Tube-in-the-Back Fountain Brush: Turn the Tube and the Jets Become a Soak
A scrubbing brush dipped in a bucket runs dry in seconds, and a hose beside it floods the floor.
Annie B. Landreth of Bristol, Pennsylvania, received US 757,628, dated 19 April 1904, for a fountain brush "of great simplicity of construction": a recess bored lengthwise into an ordinary brush's back with openings to its face, and a perforated tube on a cock that slides in; a square plate on the tube sits in a square depression, so the holes can face the openings or be turned a quarter turn against the recess walls.
This rung compares the jet with the turned-away flow, then bores a scrub brush, fits a tube and tap, and measures both settings.
中级
About 3 hours
说明
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1
Jet against soak
Jet against soak
正在加载 Jupyter 笔记本…
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A scrubbing brush improved before it
A scrubbing brush improved before it
The embedded blueprint holds two brush heads on a sprung holder. Landreth leaves the brush ordinary and feeds water through a bore in its back.
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Read US 757,628
Read US 757,628
"Thus the perforations may register with the openings a² a², as indicated in Fig. 5, or the fountain-tube may be turned to an angle of ninety degrees, so that the perforations C' face the lateral sides of the recess A', as indicated in Fig. 6, and in this way the force due to the pressure of the water-supply is broken and the water will pass out of the openings without force."
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4
Bore the back
Bore the back
Clamp a scrub brush with a back at least 22 mm thick, bristles down. Drill a 12 mm hole 160 mm deep along the back's centre from one end, keeping the bit level.
此步骤所需材料：
硬毛刷1 个所需工具：
台虎钳
充电式电钻
中心尖钻头套件
直尺
透明安全眼镜5
5
Drill the openings
Drill the openings
From the bristle face, between rows, drill seven 3 mm holes into the bore, 20 mm apart.
所需工具：
充电式电钻
钻头套装
油性记号笔6
6
Cut the square depression
Cut the square depression
Round the bore's mouth, chisel a 30 mm square 2 mm deep.
所需工具：
木工凿子套装
锤子直尺7
7
Make the tube
Make the tube
Cut 160 mm of 10 mm copper tube. Squeeze one end shut in the vice and solder it. Drill seven 1.8 mm holes in a line to match the openings.
此步骤所需材料：
铜管1 个
无铅管道焊锡1 个
管道焊剂1 个所需工具：
切管器台虎钳
丙烷喷灯充电式电钻钻头套装
耐热手套8
8
Solder on the square plate
Solder on the square plate
Cut a 28 mm square of brass sheet, drill it 10 mm in the centre, slide it on 160 mm from the closed end with one edge square to the holes, and solder it.
此步骤所需材料：
黄铜板1 个无铅管道焊锡1 个管道焊剂1 个所需工具：
铁皮剪充电式电钻钻头套装丙烷喷灯耐热手套9
9
Fit the tap and button
Fit the tap and button
Fit the ball valve and a hose connector to the open end with brass fittings and PTFE tape. Screw a 10 × 40 mm brass strip beside the depression as a turn-button.
此步骤所需材料：
球阀1 个
黄铜接头1 个
PTFE 螺纹密封带1 个黄铜板1 个
#8 × 1 英寸木螺钉1 个所需工具：
活动扳手
螺丝刀套装10
10
The build in 3D
The build in 3D
FreeCAD model of this build, not of the patent: a 200 × 60 × 26 mm back with a 12 mm bore 160 mm deep, seven 3 mm openings, a 30 mm square depression, the perforated tube with its square plate, valve and turn-button.
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11
Compare the two settings
Compare the two settings
Connect the garden hose. With the holes facing the openings, hold the brush face-up and measure how high the jets rise; time a litre into the jug. Turn the tube 90°, lock it, and repeat.
此步骤所需材料：
园艺水管1 个
水1 个所需工具：
直尺
量杯壶
秒表12
12
A brush that sprays, leaks or will not lock
A brush that sprays, leaks or will not lock
Tube-in-the-back fountain brush troubleshooting.
Flow
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History and honest limits
History and honest limits
**Annie B. Landreth** of Bristol, Pennsylvania, filed US 757,628 on 1 April 1902; it is dated 19 April 1904. The nozzle carries a cock and the usual hose coupling; the square plate and depression may be any shape that holds the tube at the chosen angle, and a turn-button holds it in use. The attachment can be inserted and withdrawn instantly, leaving the sides and back free to hold the brush in the ordinary way.
**Honest limits.** She gives no sizes; ours are examples. The notebook ignores the loss in the bore. Your jet heights and times are the result.
材料
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- 1 个占位符
- 园艺水管10% 佣金1 个占位符
- 1 个占位符
所需工具
17- 占位符
- 1 vendor sell this, none ship to you yet占位符
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