US1372295A - Propeller - Google Patents

Propeller Download PDF

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Publication number
US1372295A
US1372295A US158867A US15886717A US1372295A US 1372295 A US1372295 A US 1372295A US 158867 A US158867 A US 158867A US 15886717 A US15886717 A US 15886717A US 1372295 A US1372295 A US 1372295A
Authority
US
United States
Prior art keywords
blade
propeller
shaft
torpedo
blades
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US158867A
Other languages
English (en)
Inventor
Alexander T Kasley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westing House Electric & Manufacturing C
Westing-House Electric & Manufacturing Co
Original Assignee
Westing House Electric & Manufacturing C
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westing House Electric & Manufacturing C filed Critical Westing House Electric & Manufacturing C
Priority to US158867A priority Critical patent/US1372295A/en
Priority to GB3499/18A priority patent/GB130644A/en
Priority to FR499025A priority patent/FR499025A/fr
Application granted granted Critical
Publication of US1372295A publication Critical patent/US1372295A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B19/00—Marine torpedoes, e.g. launched by surface vessels or submarines; Sea mines having self-propulsion means
    • F42B19/12—Propulsion specially adapted for torpedoes

Definitions

  • T 0 all whom it may concern.
  • This invention relates to propellers and has for an object to produce a new and improved propeller especially adapted to be employed in driving torpedoes.
  • a further object is toproduce a folding propeller which may be employed in apparatus where it is desired'to attimes decrease the amount of space occupiedby the propeller.
  • a further object is to produce a folding propeller which will automatically unfold ,and'assume an operative position when it is rotated or when it strikes thewater.
  • Fig. 2 is anend view of the movable blade shown inFig. 1.
  • Fig. 3 illustrates a pair of propellers in the folded position as carried by a torpedo in passing througha torpedo tube, and, in the dotted lines, in'the unfolded operative position.
  • each propeller operates in undisturbed water and therefore at thevhighest efficiency.
  • the maximum speed of a torpedo has beenlimited bytthe inefiicient propellersand their limited area, but as this'discrepancy has been overcome by my invention, the speed may be increased considerably.
  • the two propellers when unfolded operate in the same manner as those of a twin screw ship and are therefore capable of the same high efficiency. 7
  • Fig. 1 I have 'illustrated'a propeller shaft 5 carrying on its outer end a propeller embodying my invention.
  • the propeller ls made up of two parts6. and 7.
  • the part 6 comprises a blade 8 and a-hub9.
  • the hub 9 is preferably secured tothe propeller shaft bymeans of a keylO.
  • the inner part .Tof The inner part .Tof
  • the propeller is, provided with a hub ll' air'd a blade 12.
  • thishub as provided with threads 13, which engage similar threads 14 on the propeller shaft 5.
  • teeth 15 The face of the hub 11 adjacent to the hubw9 is provldedwith teeth 15, which are adapted tocengage with similar teeth 16 on the hub 9 and to:lock the movable blade 12 in an operative position. These teeth are also shown in Fig.2. :1 J"
  • Fig. 3 I have illustrated two propellersxin the 'foldedposition as carried by a torpedo while passing through a torpedo tube '17.
  • the two propellers are preferably operated in opposite directions, as indicated by the arrows; I.
  • the force of the water onthe'movable blades 12 causes them to lag behind: the other blades and to assume the operative po sition indicated by the dotted lines where they are locked by theengagement of the teeth 15 and '16.
  • propeller is very simple and substantial. Propellers may be constructed so that after the movable blade .12
  • a propeller 3 In a propelling device, a propeller 3. A- propeller in winchatleast one blade I is fixed on the propellershaft and a blade'is rotatably mounted on the: propeller shaft,- I
  • a plurality' ofvpropeller blades In-combination in a propeller, a plurality' ofvpropeller blades, at least one ofwhich is movable with relation to the shaft, means for causing longitudinal movement of the movable blade when it is rotated relatively to the shaft, and meansfor limiting the longitudinal and rotative movement of the blade.
  • each of said'propelling devices comprising a propeller shaft, a blade rigidly fixed on theshaft, a blade movably' mounted on theshaft, and means automati-Q callymoving the movable blade. into operaeel tive position, whereby the propeller blades may in inoperative positions be contained within the space defined by the. projection of the torpedo body in the directionof its travel and in operative positions extend beyond saidprojection of the torpedo body.
  • an automobile torpedo having .a plurality V of propelling devices operating about different axes and throughout effective areas extending beyond the space defined by'the projection of the torpedo body in the direction of its travel;.each of said propelling devices comprising a propeller shaft, one ormor'e blades rigidly fixedvon the shaft, a blade rotatably mounted on said shaft, engaging means carried by said blades for limiting the travel of the rotatable blade and engaging means on the shaft and carried byth'e rotatable blade for wedging said rotatable blade in place atthe'limit of its travel.v v r 12.
  • each of said propelling vdevices comprising a propeller shaft, one or mo re blades rigidly fixed on the shaft, a movable iblade, means operatively connecting the movable blade tothe shaft so constructed that by movement of the movable blade'all blades may be confined within the said projection of the torpedo body, and means automatically moving the movable blade into operative position.
  • each of said propelling devices comprising a propeller shaft, one or more blades rigidly fixed on the shaft, a rotatable blade means operatively connecting the rotatable blade to said shaft so constructed that by movement of the rotatable blade all blades may be confined within the said projection of the torpedo body, means for moving the rotatably mounted blade longitudinally of the shaft to an operative position substantially in the plane of rotation of the fixed blade or blades and means for limiting the rotation of the rotatable blade or blades with respect to the fixed blade.
  • each of said propelling devices comprising a propeller shaft, one or more blades rigidly fixed on the shaft, a rotatable blade mounted on the shaft, means whereby relative rotary motion between the blades moves the rotatably mounted blade longitudinally along the shaft to an operative position, substantially in the plane of rotation of the fixed blade or blades, and means for holding the rotatable blade against rotation in this position.
  • each of said propelling devices comprising a propeller shaft, one or more blades rigidly fixed on the shaft, a blade circumferentially and longitudinally movable with relation to the shaft, means limiting the circumferential and longitudinal movements of the movable blade, and means for holding the movable blade in operative position;

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Toys (AREA)
US158867A 1917-03-31 1917-03-31 Propeller Expired - Lifetime US1372295A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US158867A US1372295A (en) 1917-03-31 1917-03-31 Propeller
GB3499/18A GB130644A (en) 1917-03-31 1918-02-27 Propellers.
FR499025A FR499025A (fr) 1917-03-31 1918-03-25 Hélices de torpille

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US158867A US1372295A (en) 1917-03-31 1917-03-31 Propeller

Publications (1)

Publication Number Publication Date
US1372295A true US1372295A (en) 1921-03-22

Family

ID=22570060

Family Applications (1)

Application Number Title Priority Date Filing Date
US158867A Expired - Lifetime US1372295A (en) 1917-03-31 1917-03-31 Propeller

Country Status (3)

Country Link
US (1) US1372295A (fr)
FR (1) FR499025A (fr)
GB (1) GB130644A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140685A (en) * 1958-11-05 1964-07-14 Thomas G Lang Propeller stabilized and controlled torpedoes
DE3835877A1 (de) * 1988-10-21 1991-09-12 Diehl Gmbh & Co Unterwasser-laufkoerper mit startgeraet
US20220260352A1 (en) * 2019-07-18 2022-08-18 Naval Group Underwater projectile, associated assembly and launch method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140685A (en) * 1958-11-05 1964-07-14 Thomas G Lang Propeller stabilized and controlled torpedoes
DE3835877A1 (de) * 1988-10-21 1991-09-12 Diehl Gmbh & Co Unterwasser-laufkoerper mit startgeraet
US20220260352A1 (en) * 2019-07-18 2022-08-18 Naval Group Underwater projectile, associated assembly and launch method
US11761741B2 (en) * 2019-07-18 2023-09-19 Naval Group Underwater projectile, associated assembly and launch method

Also Published As

Publication number Publication date
GB130644A (en) 1919-08-14
FR499025A (fr) 1920-01-29

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