Ushirikiano
SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Hydraulic Test Pump: Brass Valve Box with Glass Marble Valves and a Gas-Barrel Plunger (Cassell's, 1903)
P. N. Hasluck (ed.) · Public domain
Forge

Imeundwa na

Forge

9. Novemba 2026NO
1
0
0
0
0

Hydraulic Test Pump: Brass Valve Box with Glass Marble Valves and a Gas-Barrel Plunger (Cassell's, 1903)

A hand pump for testing a small boiler, a pipe or a fitting with water under pressure. Cassell's Cyclopaedia of Mechanics (1903) drills a brass rod into a valve box, uses two glass playing marbles as the valves, and works a plunger in a short length of gas or steam pipe through a gland made from an ordinary socket and nipple. The source says it "would stand a pressure of 250 lb. per square inch easily". It has no gauge of its own: read the pressure on the work being tested. Source: P. N. Hasluck (ed.), Cassell's Cyclopaedia of Mechanics, Third Series (1903), p. 291, "Simple Hydraulic Testing Pump". Picture: its Figs. 1-3.
Kati
Unknown

Maagizo

1

Read Cassell's

"The pump here illustrated is designed for use in testing a small boiler, and for similar purposes; it will fulfil the purpose of pumps of costly design and workmanship, and can be built for a few pence. It consists of a rod of solid brass or gun-metal drilled out to the required sizes as shown in Fig. 1, and fitted with ordinary iron gas or steam bends at the top and bottom of valve box."
2

Drill the valve box

Drill a rod of solid brass (or gun-metal) lengthwise from both ends to the sizes in Fig. 1, so that each glass marble drops into a seating made by the drill: the suction valve below, the discharge valve above. Drill and tap both ends for the iron gas or steam pipe bends, and drill and tap the centre of the side to take the pump barrel. No sizes are given (unknown).

Vifaa kwa hatua hii:

Ufito wa shaba ya njanoUfito wa shaba ya njano1 valve box

Zana zinazohitajika:

Kibano cha meza ya kaziKibano cha meza ya kazi
Kekee cha NguzoKekee cha Nguzo
Seti ya vichimbuziSeti ya vichimbuzi
Seti ya kukata nyuzi za skrubuSeti ya kukata nyuzi za skrubu
Vipimo visivyojulikanaVipimo visivyojulikana
3

Fit the valves and bends

Drop a glass marble into each seating (glass is preferred: it is far rounder than clay marbles). Screw an iron gas or steam pipe bend into the bottom (the suction) and another into the top (the delivery). The upper pipe carries a small cross-bar that stops the discharge marble from blocking the outlet (Fig. 3); its material is not given (unknown).

Vifaa kwa hatua hii:

Marumaru za kiooMarumaru za kioo2 vipande
Kiungio cha bomba chenye nyuziKiungio cha bomba chenye nyuzi2 pipe bends
Nyenzo isiyojulikanaNyenzo isiyojulikana1 cross-bar

Zana zinazohitajika:

Koleo la mabombaKoleo la mabomba
4

Make the barrel and gland

Cut a short length of gas or steam pipe for the barrel: its length is set by the stroke the pump is to have. Screw one end into the valve box. Countersink the other (gland) end, screw an ordinary socket over it, and screw into the socket an ordinary nipple, also countersunk, as the gland. Fit a back nut on the nipple for screwing up the gland and fix it with a rivet so it cannot turn.

Vifaa kwa hatua hii:

Bomba la MajiBomba la Maji1 short length
Kiungio cha bomba chenye nyuziKiungio cha bomba chenye nyuzi2 socket and nipple
Nati ya kufungashaNati ya kufungasha1 kipande
Rivet za chumaRivet za chuma1 kipande

Zana zinazohitajika:

Msumeno wa chumaMsumeno wa chuma
Seti ya Ncha za Kupanua MatunduSeti ya Ncha za Kupanua Matundu
Koleo la mabombaKoleo la mabomba
Nyundo yenye kichwa cha duaraNyundo yenye kichwa cha duara
5

Make the plunger

File out the inside of the barrel roughly to remove scale and unevenness left by the pipe mandrel. Turn a plunger to fit it loosely, file two flats on one end and drill a hole there for a pin. The plunger's material and what the pin holds are not given (unknown).

Vifaa kwa hatua hii:

Nyenzo isiyojulikanaNyenzo isiyojulikana1 plunger

Zana zinazohitajika:

Tupa (Tupa ya Mkono)Tupa (Tupa ya Mkono)
Kereza ya ChumaKereza ya Chuma
Kekee cha NguzoKekee cha Nguzo
Seti ya vichimbuziSeti ya vichimbuzi
6

Mount and use

Fix the pump down with two ordinary bent clips over the barrel near its ends (Fig. 2). Put the suction bend in water, connect the delivery to the work and work the plunger. Cassell's: the pump "would stand a pressure of 250 lb. per square inch easily". The clip material is not given (unknown).

Vifaa kwa hatua hii:

Nyenzo isiyojulikanaNyenzo isiyojulikana2 bent clips

Zana zinazohitajika:

Koleo la mabombaKoleo la mabomba

Vifaa

7

Zana Zinazohitajika

11

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Pampu ya mkono ya kupima shinikizo

Free

120
0
1

CC0 Umma Wote

Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.

Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.

Majadiliano

(0)

Ingia kujiunga na majadiliano

Inapakia maoni...