US1917439A

US1917439A - Mine ventilating apparatus

Info

Publication number: US1917439A
Application number: US589943A
Authority: US
Inventors: Lorenzo J Driggs
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-01-30
Filing date: 1932-01-30
Publication date: 1933-07-11
Anticipated expiration: 1950-07-11

Description

July l1, l933 u l.. J. DRIGGs 1,917,439

MINE VENTILATING APPARATUS Filed Jan. 30, 1932 2 `Sheets-Sheet l l l l I l l l l l l l x l l July 1.1, 1933. L, J DRlGGs 1917,439.

MINE VENTILATING APPARATUS Filed Jam 30, 1932 2 Sheets-Sheet 2 Inventor A Home y Patented July 11, 1933 UNITED STATES PATENT-f oFEIcE l LORENZO J. names, or ALTooNA, PENNSYLVANIA MIN'E VENTELATNG APPARATUS p Application led January 30, 1932. Serial No. 589,943.

mine. i@

Y through an embodiment of a Ventilating apparatus constructed in accordance with the present invention.

Figure 2 is a view in 'horizontal section through the apparatus showing the same 3@ operating to drive air into the mine.

VFigure 3 is a vertical transverse sectional view taken substantially on the line 3-3 of Figure 1, looking in thedireotion indicated by the arrows.

m Y Figure Ll is a view in vertical ylongitudinal y locaf section through a vportion of the flume showing, in side elevation, the control'unit.

Figure 5 is a detail view showing a means for uztuating the control unit. v

Referring nowto the dra-Wings in detail, 1t will beseen that the embodiment of the invention illustrated comprises a fan casing'l which communicates with an end port-ion of a fiume 2 through a substantially centrally ed opening V3. The opening 3 constitutes the air intake of the casing 1. The casing 1 is provided with an air outlet opening 4; to the atmosphere which, 1s controlled by a door 5.

A shaft 6 is mounted for rotation in the Other objects of the invention are to pro-v vide a min-e Ventilating apparatus of the- `casing 1 and extends through lthe opening 3,

through the flume 2 and projects through the outerl side wall of said flume and vhas iXed on its outer end apulley 7 for connection with a suitable source of power through the me- 5 dium of a belt (not shown). A centrifugal fan Sis fixed on the shaft 6 for operation in the casing l. A

A by-pass 9 communicates with thecasing 1 at a point between the fan 8 and the outlet opening 4 of said casing through Van opening 10 which is controlled by a door 11. One

end of the by-pass 9 communicates with the flume 2 at a point between the opening 8 and the mine, said one end beingv controlled by a door 12; Mounted for operation in the flume 2 on one side of the opening 3 and between said opening 3 and the door 12 is a control doorl. On the other side of the opening 3 the nume-2 lisladaqoted to communicate with the atmosphere through an opening 14 which is controlled by a door 15. Y

Rotatably, mounted on the shaft 6 for operation in the ume2' is an 4air control unit or guide which is designated generally by the reference` numeral 16 and which comprises an elbow or arcuate conduit 17 having one end registering with the opening 3 in the casing 1, said one end hav-ing an external flange 18 abutting the casing 1. An annulus 19 of substantially arcuate cross section is fixed on the casing 1 in the fiume 2l and is'engaged over the flange 18.` Mounted in the Velbow or conduit 17 are Vthe arcuate guide vanes 2O of a curvature corresponding to the curvature of said elbow orconduit The control unit 16 further includes a gear or toothed disk 21 which is journaled on the shaft 6adj acent the outer wall of the flume i 2 to which the elbow or conduit 17'is rigidly secured in any suitable manner. A hand crank' 22 ismounted for rotation in the outer wall of the flume 2 and has fixed thereto a gear 23 which is engaged with the gear 21.

kIf desired, the gear 2'1 may be in the form -of a segment and suitablel means provided for limiting rotation thereof in opposite directions to substantially one-half of a revo# lution.

In use, when it is desired to utilize the fan aan to draw air from thel mine, the various control doors are disposed as seen in Figure 1 of the drawings. The fan 8 will then draw the air from the mine through the flume 2, through the opening 3 into the casing 1 and said air will be expelled to the atmosphere through the outlet opening lj `When it is desired to drive air into theminc, the various control doors are disposed as seen in Figure 2 of the drawings and the air is drawn into the flume 2 from the atmosphere to thc opening 14, through the opening 3V into the casing 1, into the by-pass 9 through the opening l() and then passed into the flume 2 and air is to be driven into the mine, theV control unitl is disposed in the position shown in Figure 2 of the drawingsand when the air is to be drawn from the-mine, said control unit isreversed'to occupy the position shown in Figure 1 of said drawings. Actuation of the control unit 1G is accomplished through the medium of the crank 22 and the

gears

21 and 23.

The unit 16 together with the annulus 19 which constitutes a guide prevent eddying of the air inthe Hume 2 and also` after said air has entered the central portion of the casing 1, thereby materially increasing the eiiiciency of the fan 8. This constitutes the most important and desirable feature of the invention.

It is believed that the many advantages of a Ventilating apparatus constructed in accordance with the present invention will be vreadily understood, and although the preferred embodiment of the invention is as illustrated and described, it is to be understood that changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed.

. That is claimed'is zl. A Ventilating apparatus comprising, in combination, a flume, a Vcasing communicating with the lume, a fan operable in the cas* ing for drawing air from the iiume into the casing, control means Vfor selectively Causing the air to be drawn into the casing from different directions intoy the flume, said means including an arcuate conduit mounted for rotation in the flume and having one end communicating with said flume and its other end communicating with the casing, said means further including arcuate Vguide varies in the conduit, andmeans for actuating the control means, the second named means comprising a gea-r fixed to the conduit, a crank mounted for rotation on the flume, and a gear fixed to Athe crank and engaged with the irst namedy gear for operatively connecting the crank thereto.

2. A Ventilating apparatus comprising, in combination, a flume, a casing having an Opening therein establishing communication between said casing and the ilume, a fan operable in the casing, said fan being adapted to draw air through theflume into the casing, anV arcuate conduit mounted for rotation in the flume and having one end communicating with the flume and its other end communicating with the opening, means for shifting the conduit for causing the air to be drawn into the` casing from different directions in the fiume, and an annulus of substantially arcuate cross section mounted in the flume coaxiis driven to the mine. Of course, when the ally with the opening and immediately adjacent said opening, said annulus constituting an air guide.

3. A Ventilating apparatus comprising, in combination, a fiume a casing having an opening therein establishing communication between said casing and the iume, a fan operable in the casing, said fan being adapted to draw air through the flume into the casing, an arcuate conduit mounted for rotation in the flume and having one end communicating with the flume and its other end communieating with the opening, means Jfor shifting the conduit for causing the air to be drawn into the casing from different directions in the Hume, and an annulus of substantially arcuate cross'section mounted in the iiume coaxially with the opening and immediately adjacent said opening, said annulus constituting an air guide, an external flange on the conduit engaged against the casing, the annulus encircling the conduit and being engaged withthe Vflange.

4. A Ventilating apparatus comprising, in combination, a flume, a casing having an opening therein establishing communication between said casing and the flume, a fan operable in the casing, said fan being adapted to draw .air through the Hume into the casing, an arcuate conduit mounted for rotation in the flume and having one end communicating with the liume and its otherend' communicating with the opening, means for shifting the conduit for causing the air to be drawn into the casing from diii'erent directions in the flume, and an .annulus of substantially arcuate cross section mounted in the flume coaxially with the opening and immediately7 adj acent saidopcning, said annulus constituting an air guide, an external flange on the con'- duit engaged against the casing, the annulus encircling the conduit and being engaged with the flange, and spaced, arcuate guides Xed in the conduit.

In testimony whereof I ai'ix my signature.

K LORENZO VJ. DRIGGS.