US835472A - Turbine. - Google Patents

Turbine. Download PDF

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Publication number
US835472A
US835472A US32574606A US1906325746A US835472A US 835472 A US835472 A US 835472A US 32574606 A US32574606 A US 32574606A US 1906325746 A US1906325746 A US 1906325746A US 835472 A US835472 A US 835472A
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United States
Prior art keywords
blade
recess
retaining member
holding
retaining
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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
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US32574606A
Inventor
Max Rotter
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Allis Chalmers Corp
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Allis Chalmers Corp
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Publication date
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Priority to US32574606A priority Critical patent/US835472A/en
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Publication of US835472A publication Critical patent/US835472A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F01D5/3038—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot the slot having inwardly directed abutment faces on both sides

Definitions

  • MAXROTTER ⁇ OF MILWAKEE, WISCONSIN-'ASSIGNOR'TO ALLIS- CHALMERS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPO- EATIoN or NEW JERSEY. ⁇
  • a ication A This invention relates to turbines, and more speciiically to the type known as elastic-fluid turbines; and it comprises means for securing the blades to the blade-holding members.
  • Figure 1 represents in section the blade-holding elements and a blade in its prper'relation thereto.
  • Fig. 2 is a fragmentary elevation of a blade as seen looking in the direction indicated by the arrow on Fig. 3.
  • Fig. 3 is a plan view of a blade.
  • Fig. 4 is a plan view of the retaining-ring, and
  • Fig. 5 is a sectional view of the retaining member, taken' onthelineaaofFigA. Y
  • the reference character M designates a blade-holdin member, which is shown as provided wit an undercut recess similar to an ordinary form of dovetailed slot.
  • Reference character R represents a bladeretaining member which is adapted'to be seatedin the recess of the ⁇ blade-holding member.
  • This bladeretaining member R is formed with a recess, as shown at s, on its lower surface, and on its upper surface is formed a lurality of slots g g, which slots ate exten ed through one 'side of said member, so that they communicate with the recess, as clearly illustrated by Figs. 4 and 5.
  • Reference character B represents a blade which is rovided with the root r and the oHset or gent-over portion F.
  • the blade is provided with shoulders f h, which are adapt-- ed to rest in one of the grooves g When'the root of the blade is inserted in'said groove y with the oiiset or bent-over portion F hooked under said member and lying in the recessed portion thereof.
  • Reference character l re resents a holdingstrip, which adapted to ook the blade B to the member R and retain the blade B and member R within theundercut recess of the blade-holding member M. While this holding-strip may be dispensed with it facilitates the assembling of the parts under certainv conditions.
  • T 4 blade-retaining member R formed wit ,its base and one side disposed at an acute angle to t theundercut recess of the blade-holding member, and the grooves -g and recess sare so disposed and formed that the solid portions T at the bottoms of the grooves g' project to form a dovetail lock t for the blades,which are correspondingly recessed at bf, as clearly shown by Figs. '1 and 5 of the drawings.
  • the blades may be readily and securely fastened to the blade-holding member.
  • a blade-holding member provided with: a recess of a bladeretaining member seated in said recess, said blade-retaining member being provided with a recess .and a locking portion and a blade provided with an oi'lset portion and a recess to coact with the recess and locking portion of said retaining member respectively, and means for securing said blade and retaining member in the recess of said blade-holding member.
  • a blade adapted to encrage with the Y groove and provided with an fset portion MAX ROTTER' to engage with the recessed portion of said witnesseses: ,Y blade-retaining member respectively, and FRANK E. DENNETT, means to secure seid blade and blade-retan- G. F. DE WEIN.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Description

No. 835,472. l I PATENTE) Nov. 6, 1906.
LLLLLLLLLLLLLLLLLLLLLLLLLL 6.
UNITED STATES PATENT oEEioE.
MAXROTTER, `OF MILWAKEE, WISCONSIN-'ASSIGNOR'TO ALLIS- CHALMERS COMPANY, OF MILWAUKEE, WISCONSIN, A CORPO- EATIoN or NEW JERSEY.`
TURB'INE.
` Nasse-172.
Specification of Letters Patent.
Patented Nov. 6, 1906.
Application filed July 12, 1906. Serial No. 325.746.
A ication AThis invention relates to turbines, and more speciiically to the type known as elastic-fluid turbines; and it comprises means for securing the blades to the blade-holding members.
In the accompanying drawings, which illustrate an embodiment of the invention andwhich are to be considered as apart of this specification and in Which-the same reference characters are used to designate the same elements in each of the several views, Figure 1 represents in section the blade-holding elements and a blade in its prper'relation thereto. Fig. 2 is a fragmentary elevation of a blade as seen looking in the direction indicated by the arrow on Fig. 3. Fig. 3 is a plan view of a blade. Fig. 4 is a plan view of the retaining-ring, and Fig. 5 is a sectional view of the retaining member, taken' onthelineaaofFigA. Y
The reference character M designates a blade-holdin member, which is shown as provided wit an undercut recess similar to an ordinary form of dovetailed slot.
Reference character R represents a bladeretaining member which is adapted'to be seatedin the recess of the `blade-holding member. This bladeretaining member R is formed with a recess, as shown at s, on its lower surface, and on its upper surface is formed a lurality of slots g g, which slots ate exten ed through one 'side of said member, so that they communicate with the recess, as clearly illustrated by Figs. 4 and 5.
Reference character B represents a blade which is rovided with the root r and the oHset or gent-over portion F. The blade is provided with shoulders f h, which are adapt-- ed to rest in one of the grooves g When'the root of the blade is inserted in'said groove y with the oiiset or bent-over portion F hooked under said member and lying in the recessed portion thereof. t Y
Reference character l) re resents a holdingstrip, which adapted to ook the blade B to the member R and retain the blade B and member R within theundercut recess of the blade-holding member M. While this holding-strip may be dispensed with it facilitates the assembling of the parts under certainv conditions.
T 4 blade-retaining member R formed wit ,its base and one side disposed at an acute angle to t theundercut recess of the blade-holding member, and the grooves -g and recess sare so disposed and formed that the solid portions T at the bottoms of the grooves g' project to form a dovetail lock t for the blades,which are correspondingly recessed at bf, as clearly shown by Figs. '1 and 5 of the drawings. By this construction the blades may be readily and securely fastened to the blade-holding member.
What I claim isy 1. The combination with a blade-holding member provided with a recess of a bladeretaining member seated in said recess, said blade-retaining member being provided with arecess and a locking portion and a blade provided with an offset portion and a recess vto coact with 'the recess'and locking'portion of said retaining member respectively.
`2. The combination with a blade-holding member provided with: a recess of a bladeretaining member seated in said recess, said blade-retaining member being provided with a recess .and a locking portion and a blade provided with an oi'lset portion and a recess to coact with the recess and locking portion of said retaining member respectively, and means for securing said blade and retaining member in the recess of said blade-holding member.
3. The combination withthe blade-holdy ing member provided with arecess of the blade-retaining member R recessed ats and provided with slots g, and the blade B provided with the oset portion F.
4. The combination with the blade-hold- "ing member provided with a recess of the blade-retaining member R recessed at s and provided with slots g, the blade B provided with the offset ortion F, and means for securing said bla e and blade-retaining mem- Eer in the recess of said blade-holding mem- 5. The combinationwith the blade-hold` IOO ing member provided With arecess of a bladeing member in the recess of seid blede-vhold- |o retaining member seated in said recess, seid ing member. blade-retaining member being provided with yIn testimony whereof I affix my signature a groove on its outer surface and also being in the presence of two Witnesses.
i recessed, a blade adapted to encrage with the Y groove and provided with an fset portion MAX ROTTER' to engage with the recessed portion of said Witnesses: ,Y blade-retaining member respectively, and FRANK E. DENNETT, means to secure seid blade and blade-retan- G. F. DE WEIN.
US32574606A 1906-07-12 1906-07-12 Turbine. Expired - Lifetime US835472A (en)

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US32574606A US835472A (en) 1906-07-12 1906-07-12 Turbine.

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US32574606A US835472A (en) 1906-07-12 1906-07-12 Turbine.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421890A (en) * 1944-11-27 1947-06-10 Goetaverken Ab Turbine blade
US20040092121A1 (en) * 1998-10-16 2004-05-13 Kia Silverbrook Fabrication of a printhead chip incorporating a plurality of nozzle arrangements
US20160130956A1 (en) * 2013-05-21 2016-05-12 Nuovo Pignone Srl Turbomachine rotor assembly and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421890A (en) * 1944-11-27 1947-06-10 Goetaverken Ab Turbine blade
US20040092121A1 (en) * 1998-10-16 2004-05-13 Kia Silverbrook Fabrication of a printhead chip incorporating a plurality of nozzle arrangements
US20160130956A1 (en) * 2013-05-21 2016-05-12 Nuovo Pignone Srl Turbomachine rotor assembly and method
US10267166B2 (en) * 2013-05-21 2019-04-23 Nuovo Pignone Srl Turbomachine rotor assembly and method

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