US711300A - Electromagnetic transmission-gear. - Google Patents

Electromagnetic transmission-gear. Download PDF

Info

Publication number
US711300A
US711300A US8998602A US1902089986A US711300A US 711300 A US711300 A US 711300A US 8998602 A US8998602 A US 8998602A US 1902089986 A US1902089986 A US 1902089986A US 711300 A US711300 A US 711300A
Authority
US
United States
Prior art keywords
gear
electromagnetic transmission
transmission
members
rings
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
US8998602A
Inventor
Hardman A Earle
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US8998602A priority Critical patent/US711300A/en
Application granted granted Critical
Publication of US711300A publication Critical patent/US711300A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap

Definitions

  • VITI lull 1n calls vnu: emanano-UTM, msumcon, D. c
  • My invention relates to the construction of electromagnetic transmission-gear in such a way that without any actual contact of the two members when one of them is energized by a current of electricity their mutual action thus produced causes the one member to follow and accompany the rotation of the other, the shafts on which the two members are fixed being thus clutched together and becoming unclutched on cessation of the energizing-current.
  • Figure 1 is a longitudinal section
  • Fig. 2 is a transverse section
  • Fig. 3 is a side elevation, of the transmission-gear.
  • one of the members a of the transmission-gear is a hollow cylinder of iron or steel havingits one end open and its other end closed by a disk integral with the cylinder and made with a boss keyed onone, b, of the shafts to be clutched.
  • a number of copper bolts c are passed through longitudinal holes bored in the cylindrical shell and have their ends riveted, preferably, over copper rings d.
  • the rings d join up the rods 0, so as to form closed paths for the electric currents induced in them. It is the mutual action between these currents and those in the revolving electromagnet that causes power to be transmitted from one member of the gear to the other.
  • tromagnet consists of a boss m, having an even number of radial pole projections n, every one or alternate one of which is wound with a coil of insulated wirep, making a number of poles ot' one polarity having between each pair of them a pole of opposite polarity, the ends of the wires being connected to two insulated rings t', fixed on and revolving with the member m.V
  • This electromagnet which constitutes one member of the transmissiongear, is keyed on one of the shafts c and is inserted into the hollow cylinder a, which constitutes the other member, the diameter of the ends of the poles of the one being somewhat less than that of the interior of the cylinder, so that the two members do not touch each other.
  • I claim- An electromagnetic transmission-gear consisting of two members fixed respectively on two shafts in alinement, the one member being a shell of iron or steel traversed by copper bolts secured to copper end rings, the other member consisting of an electromagnet having pole-pieces extending nearly to but not contacting with the interior of the shell; substantially as described.

Description

2. o m M, 0..
c o, d
E. L R A E A. H.
no. mano.
ELECTBUMAGNETIC TRANSMISSION GEAR.
(Application led Ju. 16, 1902.)
(No lodol.)
VITI lull 1n: calls vnu: emanano-UTM, msumcon, D. c
UNITED STATES PATENT OFFICE.
IIARDMAN A. EARLE, OF MANCHESTER, ENGLAND.
ELECTROMAGNETIC TRANSMISSION-GEAR.
SPECIFICATION formingpart of Letters Patent No. 711,300, dated October 14, 1902.
Application filed January 16, 1902. Serial No. 89,986. (No model.)
To a/ZZ w/wm/ it may concerns Be it known that I, HARDMAN ARTHUR EARLE, a citizen of England, residing at Salford Iron WVorks, Manchester, in the county of Lancaster, England, have invented certain new and useful Improvements in Electromagnetic Transmission Gear, (for which I have applied for a patent in Great Britain, dated October 12, 1901, No. 20,46%) of which the following is a specification.
My invention relates to the construction of electromagnetic transmission-gear in such a way that without any actual contact of the two members when one of them is energized by a current of electricity their mutual action thus produced causes the one member to follow and accompany the rotation of the other, the shafts on which the two members are fixed being thus clutched together and becoming unclutched on cessation of the energizing-current.
I shall describe an electromagnetic transmission-gear according to my invention, referring to the accompanying drawings.
Figure 1 is a longitudinal section, Fig. 2 is a transverse section, and Fig. 3 is a side elevation, of the transmission-gear.
As shown in Fig. 1, one of the members a of the transmission-gear is a hollow cylinder of iron or steel havingits one end open and its other end closed by a disk integral with the cylinder and made with a boss keyed onone, b, of the shafts to be clutched. A number of copper bolts c are passed through longitudinal holes bored in the cylindrical shell and have their ends riveted, preferably, over copper rings d. The rings d join up the rods 0, so as to form closed paths for the electric currents induced in them. It is the mutual action between these currents and those in the revolving electromagnet that causes power to be transmitted from one member of the gear to the other. The other member of the transmission-gear is keyed on the other shaft e, which is in line with the former, b, and this member is an electromagnet of such diameter thatit can revolve freely within the cylindrical member a without touchingits internal surface. tromagnet consists of a boss m, having an even number of radial pole projections n, every one or alternate one of which is wound with a coil of insulated wirep, making a number of poles ot' one polarity having between each pair of them a pole of opposite polarity, the ends of the wires being connected to two insulated rings t', fixed on and revolving with the member m.V This electromagnet, which constitutes one member of the transmissiongear, is keyed on one of the shafts c and is inserted into the hollow cylinder a, which constitutes the other member, the diameter of the ends of the poles of the one being somewhat less than that of the interior of the cylinder, so that the two members do not touch each other.
By conducting-brushes bearing on the two insulated rings t' a direct continuous electrical current from a source of electricity can be transmitted through the coils p, energizing the magnet-poles, so that when one of the members of the transmission-gear rotates the other is caused to rotate with it.
Having thus described the nature of this invention and the best meansI know of carrying the same into practical effect, I claim- An electromagnetic transmission-gear consisting of two members fixed respectively on two shafts in alinement, the one member being a shell of iron or steel traversed by copper bolts secured to copper end rings, the other member consisting of an electromagnet having pole-pieces extending nearly to but not contacting with the interior of the shell; substantially as described.
In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.
IIARDMAN A. EARLE.
Witnesses:
P. A. RAMAGE, Rohr. Davis.
This elec-
US8998602A 1902-01-16 1902-01-16 Electromagnetic transmission-gear. Expired - Lifetime US711300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US8998602A US711300A (en) 1902-01-16 1902-01-16 Electromagnetic transmission-gear.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8998602A US711300A (en) 1902-01-16 1902-01-16 Electromagnetic transmission-gear.

Publications (1)

Publication Number Publication Date
US711300A true US711300A (en) 1902-10-14

Family

ID=2779826

Family Applications (1)

Application Number Title Priority Date Filing Date
US8998602A Expired - Lifetime US711300A (en) 1902-01-16 1902-01-16 Electromagnetic transmission-gear.

Country Status (1)

Country Link
US (1) US711300A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525571A (en) * 1948-05-21 1950-10-10 Martin P Winther Dynamoelectric machine containing a magnetic fluid mixture
US2672565A (en) * 1950-04-07 1954-03-16 Helmer Transmission Corp Electric clutch transmission mechanism
US2673631A (en) * 1949-11-15 1954-03-30 Gold David Magnetic fluid clutch
US3675060A (en) * 1969-12-09 1972-07-04 Brian Hills Induction motors
US3985468A (en) * 1974-12-24 1976-10-12 The Garrett Corporation Gas turbine fuel delivery system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525571A (en) * 1948-05-21 1950-10-10 Martin P Winther Dynamoelectric machine containing a magnetic fluid mixture
US2673631A (en) * 1949-11-15 1954-03-30 Gold David Magnetic fluid clutch
US2672565A (en) * 1950-04-07 1954-03-16 Helmer Transmission Corp Electric clutch transmission mechanism
US3675060A (en) * 1969-12-09 1972-07-04 Brian Hills Induction motors
US3985468A (en) * 1974-12-24 1976-10-12 The Garrett Corporation Gas turbine fuel delivery system

Similar Documents

Publication Publication Date Title
US493858A (en) Transmission of power
US687292A (en) Power-transmitting device.
US711300A (en) Electromagnetic transmission-gear.
US687428A (en) Magnetic mechanical movement.
US2408080A (en) Power transmission device
US1956041A (en) Electric motor
US1665613A (en) Coupling device for rotatable elements
US3742270A (en) Single support eddy current coupling
US1622939A (en) Electromagnetic friction clutch
US473042A (en) Peter william will ans
US742600A (en) Dynamo-electric machine or motor.
US439213A (en) Electro-magnetic clutch
US1169937A (en) Electrical device for changing the direction of rotation of shafts.
US717497A (en) Electric-arc lamp.
US1995605A (en) Magnetic trans hssion
US1393395A (en) Electric machine
US3414750A (en) Diachronous electromagnetic coupling
US1113565A (en) Asynchronous motor.
US727573A (en) Electromagnetic clutch.
US454832A (en) And horace f
US434382A (en) Stanley c
US432209A (en) Electric clutch
US786412A (en) Magnetic clutch or speed-accelerator.
US184966A (en) Improvement in magneto-electric machines
US20170346383A1 (en) Coaxial shaft system