US1054301A

US1054301A - Marine-engine exhaust.

Info

Publication number: US1054301A
Application number: US70660612A
Authority: US
Inventors: August Mathis
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-06-29
Filing date: 1912-06-29
Publication date: 1913-02-25
Anticipated expiration: 1930-02-25

Description

A. MATHIS.

MARINE ENGINE EXHAUST.

APPLICATION FILED 1111x1129, 1912.

Patented Feb. 25, 1913.

PATENT oFFIoE.

,AUGUST'MA'IHIs or CHICAGO, ILLINOIS.

MARINE-ENGINE EXHAUST.

. Specification of Letters Patent.

Application led J'une 29, 1912. Serial No. 706,606..

.To all whom i may concern:

Beit known that I, AUGUST MA'rHIs, a citizen of the United States of America, and a resident of Chicago, in the county of Cook, State of Illinois, have invented certain neu7 and useful Improvements in Marine-Engine Exhausts, of which the following is a speelfication.

This invention relates to means for effecting a noiseless and accelerated discharge of the exhaust lof marine engines, and'more especially engines of the internal combustion type. And the present improvement has for its object to provide a simple and eflcient structural formation land combination of parts, whereby the movement of the vessel is utilized to withdraw and dissipate l the engine exhaust at the stern of the vessel, all as will hereinafter more fully appear.

In the accompanying drawingsr--Figure 1, is a detail longitudinal section partly in elevation, of the rear portion of a gasolene launch or glider to which the present improvement is applied. Fig. 2, is a detail Ihorizontal section on line .0c-a', Fig. 1.

Similar reference numerals indicate like parts in both views.

Referring to the drawings, 1 represents the rear portion of the hull of the boat, formed with the usual hollow keel 2, and with its bottom preferably formed with a series of transverse air cavities 3 into which air is constantly forced with a View to ,de-

crease the friction of the hull of the boat in its passage through the water.

el is the usual propeller having a carrying shaft 5 extending in the usual manner through the hollow keel aforesaid and operatively'connected in any usual manner to the main shaft of the engine.

6 is a member or casting, which in the present invention constitutes a rearward extension of the hollow keel 2, and secured thereto and to the rear end of the hull 1 by rivets or in any other ordinary and suitable l manner.

7 is a longitudinal orifice formed in the underpart of the'member or casting 6, afore-v said, to afford a bearing for the rear portion ofthe propeller shaft 5 above described.

.-8 isp/an intermediate longitudinal orifice formed in the aforesaid member or casting 6, adjacent tothe bearing orifice 7 aforesai and adapted for connection to an ordinary drain'boot 9 arranged `in the hollow'keel 2,

scribed arrangement of the outlet orifice of the outlet conduit 11 in close proximity to the propeller 4, the suction produced by said propeller in actual use Vis adapted to effectively aidin the discharge of the jexhaust frases lthrough thefoutlet conduit 11, and the dissipation of said gases without noise amid the water in thewake of the boat.

12 is a jet or nozzle arranged'centrally and'longitudinally in t-he rear portion of the outlet conduit 1l abovedescribed, and having lateralsupply openings 13 at its forward end and through the respective sides of the 4member or casting 6, as shown more particu'- larly in Fig. 2. With the .described construction, and as the boat moves through the water, the lateral supply openings 13 will take in a constant flow of water and cause the same to be forcibly discharged through secure by Letters Patent, is

Patented Feb. 25,191.3.`

i and provided with the usual check valve 10,

1. In a boat, the combination of a ,pro-

pellen-a conduit having its rear end disposed in adjacent relation to said propeller and its forward end adapted for ,connection to the exhaust of the boat engine, and a discharge nozzle disposed longitudinally in said conduit and having lateral inlets at its forward end, substantially asset forth.

2. In a boat having a keel and a propeller the shaft of which passes through said keel, the combination with said keel of a member forming a rearward extension of the keel and formed with an outlet passage the rear end of which is disposed in adjacent relation to the propeller and the forward .end of which is adapted for connectionto the eX- haust 'of the boat engine, substantially as set forth.

end, substantially as set l and for-med the shaft of which passes through said keel, the combination with said keel of a member forming a rearward extension of the keel and formed with an outle-t passage the rear end of which is disposed in adjacent relation to the propeller and the forward end of which -is adapted for connection to the eX- haust of the boat engine, and a discharge nozzle disposed longitudinally insaid passage and having lateral inlets at itsforward forth.v

4. 1n a boat having a keel and a propeller the shaft eff-Which passes through said keel, the combination with said keel of a member forming a rearward extension of the keel and formed with a longitudinal bearing oriicefor the propeller shaft and with an outrlet passage the rear/eid of which is disposed in adjacent Irelation to the propeller and' the forward-end of which is-adapt-ed for connection to the exhaust of the boat `engine, substantially vas set forth.

5. I-n a boat having a keel and a propeller the shaft of Iwhich passes through said keel,

lt`he"c0mbination 'with said keel of 'a member forming a rearward extensionof the keel with -a longitudinal bearing end of which is disposed in of June, 1912.

orifice for the propeller shaft and with an outlet passage the rear end of which is disposed l'in adjacent relation to the propeller and the forward end of which is adapted for connection to the exhaust of the boat engine, and a discharge nozzle disposed longitudinally in said passage and having lateral inlets at its forward end, subst-an# tia-Hy as set forth. a

- 6. In a boat having a keel and a propeller the shaft of which passes through said keel,

the combinationwith said keel ofa member forming a rearward extension of the keel and formed with an outlet passage the rear adjacent relation to the propeller-*and the forward. end of which is adapted for connection to the e-X- haust of the boat engine, the said member having a secondary longitudinal passage adapt-ed for connection to the drain 4boot of the'boat, substantially as set forth.

Signed yat Chicago, illinois, this 26th day AUGUST MATHIS.

VVit-nesses:

ROBERT BURNS, HENRY Mon.