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The Finger-Valve Fountain Bath Brush: Press to Run, Let Go to Stop
A bath brush fed from a hose runs all the time, or needs a tap out of reach.
Daniel S. Koons and William F. Moughler of Chicago received US 634,527, dated 10 October 1899, for "a fountain bath-brush": a false back with a water passage, joined to the brush by a hollow screw whose perforated head lets the water out among the bristles, with a valve that a spring and the water pressure hold shut until a finger presses its stem, and a strap that holds the hand to the brush.
This rung works out the finger force, then builds the false back on a scrub brush with a tyre valve as the finger valve, and measures the force and the flow.
中级
About 3 hours
说明
1
1
Force to open the valve
Force to open the valve
正在加载 Jupyter 笔记本…
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2
A brush that feeds itself before it
A brush that feeds itself before it
The embedded blueprint feeds soap from inside a shaving brush. Koons and Moughler feed water, and give the finger a valve to start and stop it.
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3
Read US 634,527
Read US 634,527
"Said valve is held normally closed by means of a spring 9 and also by the water-pressure, as will be obvious."
"A strap k is secured at the sides of said back B' and passes over the latter, so that by inserting the hand between said back B' and said strap k the brush can be firmly held and the fingers at the same time kept in position to operate the valve."
4
4
Bore the false back
Bore the false back
Cut a hardwood block 120 × 50 × 22 mm. Drill a 6 mm passage 90 mm along its centre from one end, and a 6 mm hole down from the top to meet it 30 mm from the far end.
此步骤所需材料：
硬木块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
Fit the finger valve
Fit the finger valve
Drill a hole across the passage 20 mm from the inlet to take a tyre valve, pin upward. Epoxy it in so the water must pass through it.
此步骤所需材料：
轮胎气门1 个
双组分环氧胶1 个所需工具：
充电式电钻
钻头套装6
6
Join it to the brush
Join it to the brush
Drill a 6 mm hole through the scrub brush's back to line up with the outlet. Cut a rubber gasket, and screw the block on with four wood screws.
此步骤所需材料：
硬毛刷1 个
橡胶板1 个
#8 × 1 英寸木螺钉1 个所需工具：
充电式电钻钻头套装
手工刀
螺丝刀套装7
7
Strap and hose
Strap and hose
Screw a strip of rubber sheet across the block as a hand strap, over the valve's side. Fit a hose connector to the inlet with brass fittings and PTFE tape.
此步骤所需材料：
橡胶板1 个#8 × 1 英寸木螺钉1 个
黄铜接头1 个
PTFE 螺纹密封带1 个所需工具：
螺丝刀套装
活动扳手8
8
The patent drawing
The patent drawing
US 634,527 drawing sheet, public domain (expired patent).
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9
Measure force and flow
Measure force and flow
Connect the garden hose and turn on the tap. Press the valve pin with the force meter's hook until water runs; note the force. Hold it open over the jug for 30 s and read the flow.
此步骤所需材料：
园艺水管1 个
水1 个所需工具：
测力计（弹簧秤）
量杯壶
秒表10
10
A valve that drips, sticks or barely flows
A valve that drips, sticks or barely flows
Finger-valve bath brush troubleshooting.
Flow
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11
History and honest limits
History and honest limits
**Daniel S. Koons** and **William F. Moughler** of Chicago filed US 634,527 on 21 September 1898; it is dated 10 October 1899. They called it a self-cleansing brush. Its handle is telescopic, with a stuffing-box between the two members, and the hose can be led through it to the brush; a second form uses a nozzle as the screw joining the backs. They did not limit it to the bath.
**Honest limits.** A tyre valve stands in for their seated valve and stem, and wood screws for their hollow screw. Your forces and flows are the result.
材料
10- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 1 个占位符
- 2 个占位符
- 1 个占位符
- 1 个占位符
- 园艺水管10% 佣金1 个占位符
- 1 个占位符
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