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Air Blow Gun: Press-Button Valve and Conical Air Shield
Harry A. Yates, Bridgeport, Conn. · Public domain (expired patent)
Martin

Yenziwe ngu-

Martin

23. uMfumfu 2026NO
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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.
Osezingeni eliphezulu
1 day

Imiyalelo

1

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.

Izinto zokwakha zalesi sinyathelo:

Umzimba wesibhamu sokuphephetha umoyaUmzimba wesibhamu sokuphephetha umoya1 ucezu

Amathuluzi adingekayo:

Umshini Wokuphendula InsimbiUmshini Wokuphendula Insimbi
Induku yokusika ngaphakathiInduku yokusika ngaphakathi
Isethi yokusika izikulufuIsethi yokusika izikulufu
2

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.

Amathuluzi adingekayo:

Umshini Wokuphendula InsimbiUmshini Wokuphendula Insimbi
Induku yokusika ngaphakathiInduku yokusika ngaphakathi
Isethi yokusika izikulufuIsethi yokusika izikulufu
3

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).

Amathuluzi adingekayo:

Umshini Wokuphendula InsimbiUmshini Wokuphendula Insimbi
Induku yokusika ngaphakathiInduku yokusika ngaphakathi
4

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.

Izinto zokwakha zalesi sinyathelo:

Induku yevalvuInduku yevalvu1 ucezu
Inkinobho yokucindezela yevalvuInkinobho yokucindezela yevalvu1 ucezu

Amathuluzi adingekayo:

Isicindezeli se-arborIsicindezeli se-arbor
5

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.

Izinto zokwakha zalesi sinyathelo:

Ingxenye evala ivalvuIngxenye evala ivalvu1 ucezu
Ubuso berabha bevalvuUbuso berabha bevalvu1 ucezu
IseyilethiIseyilethi1 ucezu

Amathuluzi adingekayo:

Isicindezeli se-arborIsicindezeli se-arbor
6

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.

Izinto zokwakha zalesi sinyathelo:

Isivalo esivalayoIsivalo esivalayo1 ucezu
Igasikhethi lokuvalaIgasikhethi lokuvala1 ucezu

Amathuluzi adingekayo:

Isikulufudlawu esiyisicabaIsikulufudlawu esiyisicaba
7

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).

Izinto zokwakha zalesi sinyathelo:

Umlomo womoyaUmlomo womoya1 ucezu

Amathuluzi adingekayo:

Isicindezeli se-arborIsicindezeli se-arbor
8

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).

Izinto zokwakha zalesi sinyathelo:

Isihloko somlomoIsihloko somlomo1 ucezu
Inipheli enentambo yepayipiInipheli enentambo yepayipi1 ucezu

Amathuluzi adingekayo:

Isipanela esilungisekayoIsipanela esilungisekayo
9

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.

Amathuluzi adingekayo:

I-compressor yomoyaI-compressor yomoya
Ipayipi lomoyaIpayipi lomoya

Izinto

11

Amathuluzi Adingekayo

8

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