US953016A - Turbine blade and vane. - Google Patents

Turbine blade and vane. Download PDF

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Publication number
US953016A
US953016A US507559A US1909507559A US953016A US 953016 A US953016 A US 953016A US 507559 A US507559 A US 507559A US 1909507559 A US1909507559 A US 1909507559A US 953016 A US953016 A US 953016A
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United States
Prior art keywords
blades
blade
slot
vane
turbine blade
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
US507559A
Inventor
Henry Sherman Loud
Joseph Panter
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.)
Westinghouse Machine Co
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Westinghouse Machine Co
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
Priority claimed from US36928307A external-priority patent/US941375A/en
Application filed by Westinghouse Machine Co filed Critical Westinghouse Machine Co
Priority to US507559A priority Critical patent/US953016A/en
Application granted granted Critical
Publication of US953016A publication Critical patent/US953016A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins

Definitions

  • Our invention relates to means which are equally effective in mounting the blades on the rotor element or varies in the stator element, and for that reason and also for the sake of brevity we will hereinafter use the term rotating blades and the stationary vanes.
  • Figure 1 is a perspective view of a plurality of blades mounted in a portion of a bladeholding element.
  • Figs. 2 to 5 inclusive are detail views of modifications of our invention, and
  • Fig. 6 is a sectional view of a detail of our invention.
  • the blade mounting element is provided with grooves or slots into which the ends of the blades may be introduced andspread apart to be locked in the grooves by being distorted.
  • Each blade 20, is provided with a distortable end which ly fit into the groove 27 formed in the blade-mounting elements 23.
  • each slot or groove 27, is provlded with two expansion wedges 31, and
  • blade is provided w th two slots 29.
  • the blade is secured to the mounting element 23 by the wedge 31, which expands or distorts the blades so that they will fit into the undercut portions of the slots 27.
  • the swaged ends are caused to expand into gripping contact with the undercut walls so that any liability of the blades pullin out will be prevented.
  • Fig. 6 a sectional elevation of an expansion strip is shown.
  • the strip is provided with longitudinally extending ridges which cause it to more firmly grip the adjacent faces of the swaged end portions of the blades.
  • Fi 1 the invention is shown in which the wedge shaped member 31 is mounted in a slot 32, which is cut in the inner face of the slot 27.
  • the swaged portions 26 of the blades are of such shape that when the blades are in place and secured to the member 23 by any one of the methods disclosed,
  • the ends of the blades are secured in place by being expanded over an expansion piece or strip which is located in the bottom of the recess formed in the mounting element of the turbine.
  • a blade holding element In combination in an elastic fluid turbine, a blade holding element, a mounting element provided with a blade-holding slot, ablade provided with a swaged mounting portion located within said slot, a groove at the bottom of said slot and an agent, located in said groove and cooperating with said swaged mounting portion to secure said blade into said slot.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

H. S. LOUD, 62 J., PANTER. TURBINE BLADE AND VANE- APPLIOATIO! rum JULY 14, 1909.
953,016. Patented Mar.22,1910.
IN VENTORS UNITED STATES PATENT OFFICE.
HENRY SHERMAN LOUD, OF MORRISTOWN, NEW JERSEY, AND JOSEPH PANTER, OF
STRETFORD, MANCHESTER, ENGLAND, ASSIGNORS TO THE WESTINGHOUSE MA- CHINE COMPANY, A CORPORATION OF PENNSYLVANIA.
Original application filed April July 14, 1909.
To all whom it may concern:
Be it known that we, HENRY SmmMAN Loun and JOSEPH PANTER, citizens of the United States, and residents, respectively, of Morristown, Morris county, in the State of New Jersey, United States of America, and Stretford, Manchester, in the county of 7 Lancaster, En land, have made a new and bine which receive the working fluid are is adapted to more or less snu ordinarily termed buckets or blades, and the stationary directing elements are termed vanes.
Our invention relates to means which are equally effective in mounting the blades on the rotor element or varies in the stator element, and for that reason and also for the sake of brevity we will hereinafter use the term rotating blades and the stationary vanes.
- In the drawingv accompanying this application and forming a part thereofaFigure 1 is a perspective view of a plurality of blades mounted in a portion of a bladeholding element. Figs. 2 to 5 inclusive, are detail views of modifications of our invention, and Fig. 6 is a sectional view of a detail of our invention.
In each of the figures the blade mounting element is provided with grooves or slots into which the ends of the blades may be introduced andspread apart to be locked in the grooves by being distorted. Each blade 20, is provided with a distortable end which ly fit into the groove 27 formed in the blade-mounting elements 23.
Specification of Letters Patent.
20, 1907, Serial No. 369,283. Divided and this application filed Serial No. 507,559.
the swaged end 26 of each Patented Mar. 22,. 1910.
Referring to Figs. 2 and 3 it will be observed that each slot or groove 27, is provlded with two expansion wedges 31, and
blade is provided w th two slots 29. The blade is secured to the mounting element 23 by the wedge 31, which expands or distorts the blades so that they will fit into the undercut portions of the slots 27. In forcing the blades into place by the wedges 31 in the slots 27 the swaged ends are caused to expand into gripping contact with the undercut walls so that any liability of the blades pullin out will be prevented.
In igs. 4 and 5 a modification is shown in which only one side of the slot 27 is undercut and in which but one expansion strip or wedge piece 31, is utilized. The swaged end of the blade 26 is provided with a slot 29, but the slot is located at one side of the mounting portion. By such an arrangement the blade is secured in place by forcing the portion of the swaged end into gripping contact with the undercut wall of the slot through the agency of the expansion strip 31. With this arrangement the major portion of the swaged end is undistorted.
In Fig. 6 a sectional elevation of an expansion strip is shown. The strip is provided with longitudinally extending ridges which cause it to more firmly grip the adjacent faces of the swaged end portions of the blades.
In Fi 1 the invention is shown in which the wedge shaped member 31 is mounted in a slot 32, which is cut in the inner face of the slot 27. The swaged portions 26 of the blades are of such shape that when the blades are in place and secured to the member 23 by any one of the methods disclosed,
the working faces of the blades will be.
turned to the correct angle for eflicient operation, thereby overcoming the necessity of gaging the blades.
In all of the forms shown, the ends of the blades are secured in place by being expanded over an expansion piece or strip which is located in the bottom of the recess formed in the mounting element of the turbine.
What we claim'is:
In combination in an elastic fluid turbine, a blade holding element, a mounting element provided with a blade-holding slot, ablade provided with a swaged mounting portion located within said slot, a groove at the bottom of said slot and an agent, located in said groove and cooperating with said swaged mounting portion to secure said blade into said slot.
In witness whereof, I have hereunto subscribed my name this 15th day of June 1909.
HENRY SHERMAN LOUD.
' Witnesses:
WM. H. OAPEL, ROBERT HARRISON.
In witness whereof, I have hereunto subscribed my name this 2nd day of July 1909.
JOSEPH PANTER. Witnesses:
N. H. SHEARD, JAS. STEWART BROADFOOT.
US507559A 1907-04-20 1909-07-14 Turbine blade and vane. Expired - Lifetime US953016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US507559A US953016A (en) 1907-04-20 1909-07-14 Turbine blade and vane.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36928307A US941375A (en) 1907-04-20 1907-04-20 Turbine-blade.
US507559A US953016A (en) 1907-04-20 1909-07-14 Turbine blade and vane.

Publications (1)

Publication Number Publication Date
US953016A true US953016A (en) 1910-03-22

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US507559A Expired - Lifetime US953016A (en) 1907-04-20 1909-07-14 Turbine blade and vane.

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