US47137A - Improvement in manufacture of propellers - Google Patents

Improvement in manufacture of propellers Download PDF

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US47137A
US47137A US47137DA US47137A US 47137 A US47137 A US 47137A US 47137D A US47137D A US 47137DA US 47137 A US47137 A US 47137A
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propeller
propellers
manufacture
hub
improvement
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34Blade mountings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49316Impeller making
    • Y10T29/49332Propeller making

Description

J. SUTHERLAND.

Manufacture of Propellers.

No. 47,137. Patented April4, 1865.

% aim Nrren States PATENT twice.

JAMES SUTHERLAND, 0F NEl/V YORK, N. Y.

Specification forming part of LettcrsPatent N0. 2 7,1137, dated April 4, 1865.

T) all whom it may concern Be it known that 1, JAMES S THERLAND, of the city, county, and State of "rlew York, have invented a new and useful Improvement in the Manufacture of Propellers; and I do hereby declare that the following is a .full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a longitudinal vertical section of this invention. Figs. 2 and 3 are detached perspective views of the two parts from which the propeller is made. Fig. 4 is a transverse vertical section of the same.

Similar letters of reference indicate like parts.

This invention consists in constructing the propeller in two parts by so forming the hubs of each half that the same fit together and form a perfect hub and propeller-wheel, thus allowing the wheel to be forged of wroughtiron, and producing a propeller of superior strength, lightness, and durability.

My propeller is made of two halves, A and B, as shown in Figs. 2 and 3. The hub of each half carries two wings, a I), and said hubs are cut out, as shown, so that they will fit together and make a perfect hub, as shown in Figs. 1 and at of the drawings. Both hubs of the two valves are formed precisely equal,

each being provided with two prongs, a (Z, and with a recess, 0 or f, the prongs c of one hub being made to fit into the recess f of the other hub, and vice versa, and after the two htlves have been fitted together they are fastened by means of rings 9, placed round the ends ofthe hub, as shown in Fig. 1.

The two halves of my propeller can be forged out of wrought-iron, having the hub of each solid, and workingitout to the requisite shape by suitable machinery, and a propeller can thus be obtained which is light, strong, and durable. It is true the original cost of my propeller will be greater than that of an ordinary propeller made of cast-iron, but it will pay itself in a few trips, for the ordinary propellers are liable to break and necessitate repairs at short intervals, and if the time is calculated during which the vessel has to lay idle it will be found the difference in the cost of my propeller over that of ordinary construction will appear as a mere trifle.

My propeller may, however, also be made of cast metal, and in that case the principal advantage is that the weight of the parts to be cast is reduced onehalfi 1f one-half turns out, bad the other can be used and the loss is only half, and furthermore the parts are easier handled, and they can be cast so that very little fitting is required to put them together and complete the wheel. After the two halves rings are secured together and fastened by the rings g, the wheel is ready to be bored for the shaft, and it is keyed to the same in the usual manner.

I claim as new and desire to secure by Letters Pate'nt- Constructing a propeller out of two parts by forming the hub of each part substantially as herein shown and described, and fitting the two parts together, as and for the purposes set forth.

JAMES SUTHERLAND.

Witnesses:

J AMES P. HALL, (J. L. ToPLIFF.

US47137D Improvement in manufacture of propellers Expired - Lifetime US47137A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973876A (en) * 1974-11-13 1976-08-10 Allis-Chalmers Corporation Runner hub construction for propeller type turbine
US5110313A (en) * 1989-09-25 1992-05-05 Tsai J Separable blade assembly for rubber raft
US5611668A (en) * 1995-06-16 1997-03-18 Bosch Automotive Motor Systems, Inc. Multi-part injection-molded plastic fan
US20050018201A1 (en) * 2002-01-24 2005-01-27 De Boer Johannes F Apparatus and method for ranging and noise reduction of low coherence interferometry lci and optical coherence tomography oct signals by parallel detection of spectral bands
US20060067620A1 (en) * 2004-09-29 2006-03-30 The General Hospital Corporation System and method for optical coherence imaging
US20070038040A1 (en) * 2005-04-22 2007-02-15 The General Hospital Corporation Arrangements, systems and methods capable of providing spectral-domain polarization-sensitive optical coherence tomography
US20070208400A1 (en) * 2006-03-01 2007-09-06 The General Hospital Corporation System and method for providing cell specific laser therapy of atherosclerotic plaques by targeting light absorbers in macrophages
US20070239033A1 (en) * 2006-03-17 2007-10-11 The General Hospital Corporation Arrangement, method and computer-accessible medium for identifying characteristics of at least a portion of a blood vessel contained within a tissue using spectral domain low coherence interferometry
US20080287808A1 (en) * 2006-09-12 2008-11-20 The General Hospital Corporation Apparatus, probe and method for providing depth assessment in an anatomical structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973876A (en) * 1974-11-13 1976-08-10 Allis-Chalmers Corporation Runner hub construction for propeller type turbine
US5110313A (en) * 1989-09-25 1992-05-05 Tsai J Separable blade assembly for rubber raft
US5611668A (en) * 1995-06-16 1997-03-18 Bosch Automotive Motor Systems, Inc. Multi-part injection-molded plastic fan
US20050018201A1 (en) * 2002-01-24 2005-01-27 De Boer Johannes F Apparatus and method for ranging and noise reduction of low coherence interferometry lci and optical coherence tomography oct signals by parallel detection of spectral bands
US20060067620A1 (en) * 2004-09-29 2006-03-30 The General Hospital Corporation System and method for optical coherence imaging
US20070038040A1 (en) * 2005-04-22 2007-02-15 The General Hospital Corporation Arrangements, systems and methods capable of providing spectral-domain polarization-sensitive optical coherence tomography
US20070208400A1 (en) * 2006-03-01 2007-09-06 The General Hospital Corporation System and method for providing cell specific laser therapy of atherosclerotic plaques by targeting light absorbers in macrophages
US20070239033A1 (en) * 2006-03-17 2007-10-11 The General Hospital Corporation Arrangement, method and computer-accessible medium for identifying characteristics of at least a portion of a blood vessel contained within a tissue using spectral domain low coherence interferometry
US20080287808A1 (en) * 2006-09-12 2008-11-20 The General Hospital Corporation Apparatus, probe and method for providing depth assessment in an anatomical structure

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