US155003A - Improvement in screw-propellers - Google Patents

Improvement in screw-propellers Download PDF

Info

Publication number
US155003A
US155003A US155003DA US155003A US 155003 A US155003 A US 155003A US 155003D A US155003D A US 155003DA US 155003 A US155003 A US 155003A
Authority
US
United States
Prior art keywords
hub
propellers
improvement
screw
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
Publication date
Application granted granted Critical
Publication of US155003A publication Critical patent/US155003A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/26—Blades

Definitions

  • My invention consists or" detachable blades for propeller-wheels, secured to the hub by the inner end fitted in a dovetail spiral groove, and keyed in the groove by a key, which is itself secured by collars screwed against the hub by-a nut screwing on the outer end of the shaft, whereby the blades are fastened more securely than when bolted through a ange.
  • the hub is as smooth and free from projections as a solid hub, and the blades may, on account of not requiring a flange by which to fasten them, be made of steel plates, of which they may be shaped by stamping or pressing in dies.
  • Figure 1 is a horizontal section of 'a wheel in which the blades are secured to the hub according to my plan.
  • Fig. 2 is a transverse section.
  • Fig..3 is a side elevation of a blade, and
  • Fig. 4 is a side elevation of a key.
  • A is the hub of the wheel, in which two or more spiral dovetail grooves are made to receive the blades B by the inner end, which will be as wide as the length of the groove, and slightly increasing in thickness from about the periphery of the hub to the inner end, to prevent drawing out when keyed in.
  • C represents the keys for fastening the blades in the hub, and l) represents the collars for sew vby collars, all combined and arranged substantially as specied.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

UNITED STATES PATENT FFIGE.
PHILO M. BLATCHLEY, OF GUILFORD, CONNECTICUT.
IMPROVEMENT IN SCREW-PROPELLERS.
Specification forming part of Letters Patent No. 155,003, dated September 15, 1874; application led August 15, 1874.
To all whom t may concern:
Be it known that I, PHILo M. BLATCHLEY, of Guilford, in the county of New Haven and State of Connecticut, have invented a new and Improved Propeller-Wheel, of which the following is a specification:
My invention consists or" detachable blades for propeller-wheels, secured to the hub by the inner end fitted in a dovetail spiral groove, and keyed in the groove by a key, which is itself secured by collars screwed against the hub by-a nut screwing on the outer end of the shaft, whereby the blades are fastened more securely than when bolted through a ange. The hub is as smooth and free from projections as a solid hub, and the blades may, on account of not requiring a flange by which to fasten them, be made of steel plates, of which they may be shaped by stamping or pressing in dies.
Figure 1 is a horizontal section of 'a wheel in which the blades are secured to the hub according to my plan. Fig. 2 is a transverse section. Fig..3 is a side elevation of a blade, and Fig. 4 is a side elevation of a key.
Similar letters of reference indicate corresponding parts.
A is the hub of the wheel, in which two or more spiral dovetail grooves are made to receive the blades B by the inner end, which will be as wide as the length of the groove, and slightly increasing in thickness from about the periphery of the hub to the inner end, to prevent drawing out when keyed in. C represents the keys for fastening the blades in the hub, and l) represents the collars for sew vby collars, all combined and arranged substantially as specied.
PHILO M. BLA'DCHLEY. Witnesses:
SrLvANUs CLARK, EDWARD R. LANDEN.
US155003D Improvement in screw-propellers Expired - Lifetime US155003A (en)

Publications (1)

Publication Number Publication Date
US155003A true US155003A (en) 1874-09-15

Family

ID=2224413

Family Applications (1)

Application Number Title Priority Date Filing Date
US155003D Expired - Lifetime US155003A (en) Improvement in screw-propellers

Country Status (1)

Country Link
US (1) US155003A (en)

Similar Documents

Publication Publication Date Title
US730363A (en) Detachable turbine-bucket.
US355555A (en) Pulley
US391523A (en) Bright
US143849A (en) Improvement in the modes of securing wheel-hubs to shafts
US322898A (en) caeey
US893077A (en) Turbine-wheel.
US215980A (en) Improvement in cams for stamp-mills
US122818A (en) Improvement in friction-pulleys
US1059161A (en) Blade for the wheels of rotary fluid-compressors.
US4332A (en) Improvement in water-wheels
US1191040A (en) Fan-wheel.
US884907A (en) Impact water-wheel.
US224103A (en) Thomas g
US486062A (en) Propeller-wheel
US103162A (en) Improvement in water-wheel
US105592A (en) Improvement in grindinq-mills
US146615A (en) Improvement in band-pulleys
US192304A (en) Improvement in water-wheels
US113592A (en) Improvement in water-wheels
US257772A (en) Rotary fan
US73215A (en) Improvement in water-wheels
US780359A (en) Friction-clutch.
US1119126A (en) Crushing-mill.
US228293A (en) Fan-blower
US1184300A (en) Centrifugal fan.