IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Air Blow Gun: Press-Button Valve and Conical Air Shield
Harry Yates's air gun (US 2,604,361, 1952) for blowing chips off lathes and drills. A press-button valve is held shut by the line pressure itself; pressed, it lets air into a ribbed nozzle that splits it into a central jet and a cone of air from a ring slot, which keeps flying chips away from the worker's eyes. The rubber valve face comes out by unscrewing one cap.
The patent gives no materials (except the rubber face), threads or sizes; the machine tools named are ours. The picture: the patent's drawing.
Ilọsíwájú
1 day
Ìlànà
1
1
Bore the body
Bore the body
Bore the body's vertical opening: stem bearing (13), wider air passage (14), wider chamber (15) threaded at the bottom (16), with a valve seat rib (17) undercut round its edge. Ours: lathe and boring bar, tap for the thread.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ara ìbọn afẹ́fẹ́1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ Ìyí Irin
Ọ̀pá gígé inú ihò
Ìtò irinṣẹ́ ìgé ihá2
2
Bore the hose pocket so it breaks into the chamber
Bore the hose pocket so it breaks into the chamber
Bore and thread the hose pocket (19) so its edge cuts into the chamber, opening the port (20) and leaving a centre projection (21): an overhang that turns incoming air down into the chamber, away from the seat.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ Ìyí IrinỌ̀pá gígé inú ihòÌtò irinṣẹ́ ìgé ihá3
3
Bore the barrel
Bore the barrel
Bore the front barrel (11) to a cylindrical pocket (22) joined to the air passage by a tapered passage (23). Bevel the barrel's front end (44).
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ Ìyí IrinỌ̀pá gígé inú ihò4
4
Fit stem and press-button
Fit stem and press-button
Pass the valve stem (24) up through the body and press its stud (25) into the socket (27) of the press-button (28). The button slides in the bearing; the stem's flange (26) stops it coming out upward, the button head downward. Ours: arbor press.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ọ̀pá fáàfù1 ẹyọ
Bọ́tìnnì ìtẹ̀ fáàfù1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ ọwọ́5
5
Make the valve closure
Make the valve closure
Set the rubber valve face (36) in the recess (35) on top of the closure member (30) and press a flanged tubular eyelet (37) into its centre hole (38) to hold it.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ẹ̀yà ìdí fáàfù1 ẹyọ
Ojú rọ́bà fáàfù1 ẹyọ
Ihò rívẹ́ẹ̀tì1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ ọwọ́6
6
Close the chamber
Close the chamber
Slide the closure's stud (31) into the pocket (32) of the closure cap (33) and screw the cap into the chamber, a gasket (34) under its flange. The stem's pin (29) rests on the closure. Ours: flat screwdriver in the cap's slot.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ìdérí ìdí1 ẹyọ
Gásíkẹ́ẹ̀tì ìdí1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ìlọ̀sí olójú pẹlẹbẹ7
7
Press in the nozzle
Press in the nozzle
Force the nozzle's ribs (41) into the barrel pocket (22) until its inner end stops on the tapered passage (23). That stop fixes the ring slot (45) between the nozzle's cone shoulder (42) and the barrel bevel (44).
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ihò-ìfẹ́ afẹ́fẹ́1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìtẹ̀ ọwọ́8
8
Screw on the tip and the hose nipple
Screw on the tip and the hose nipple
Screw the tip (49) into the nozzle's threaded pocket (48); its bore (50) is wider than the jet hole (47) so it does not touch the jet, and it can clamp an extension tube. Screw a hose nipple into the hose pocket (19).
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Orí ihò-ìfẹ́1 ẹyọ
Níípù oníyíyí fún ọ̀pá-omi1 ẹyọÀwọn irinṣẹ́ tí a nílò:
Kọ́kọ́rọ́ tí a lè ṣàtúnṣe9
9
Try the jet and the shield
Try the jet and the shield
Ours: connect an air hose from a compressor. The line pressure alone holds the valve shut. Press the button: a central jet leaves the jet hole, and a cone of air from the ring slot surrounds it.
Àwọn irinṣẹ́ tí a nílò:
Ẹ̀rọ ìfun afẹ́fẹ́
Páìpù afẹ́fẹ́Àwọn ohun-èlò
11- 1 ẹyọÀyè
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