US173864A - Improvement in electro-magnetic dental engines - Google Patents

Improvement in electro-magnetic dental engines Download PDF

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US173864A
US173864A US173864DA US173864A US 173864 A US173864 A US 173864A US 173864D A US173864D A US 173864DA US 173864 A US173864 A US 173864A
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engine
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improvement
dental
magnetic
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

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  • My invention consists of a simple contrivance for coupling a magnetic engine to a dental engine, for use instead ofthe footpower for driving it, using the armaturewheel of the magnetic engine in the place of the driving-wheel of the foot-power for running the band, and mounting the standard of the dental engine on the shaft of the armature for its support.
  • Figure l is a side elevation of my improved magnetic and dental engine contrivance
  • Fig. 2 is a front elevation.
  • A is the crotched standard of the dental engine, which I cut in two 'ust below the bearings B, for the shaft 0 the driving-pulley, which is worked by the foot-trcadle, and fits on a shaft, (J, which I mount in bearings D of standards E, which I secure to the projecting ends of the armature-shaft F, with extensions G to the base, or nearly, connecting with spring H, or any other suitable contrivance to keep the standard upright, but at the same time allowing it to vibrate for swinging the top forward and backward, as may sometimes be required in the manipulation of the tools.
  • This brings the shaft-pulley I directly over the armature-wheel J, so that it may serve for the band-wheel, for which I make V notches'in the armature for a round band, K, and flat bottomed notches for a flat band.
  • the crotch L of the standardv will be extended so as to serve for the standards E, and lit the bearings D on the' armature-shaft, thus dispensing with the shaft 0, which is only necessary in theconnection of dental engines made for foot-power.
  • the armature-wheel of a magnetic engine provided with a band-groove to utilize it for driving by a band running on it,

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

E. R. PETJII'I'. ELECTROMAGNETIC DENTAL-ENGINE. No.173,864. Patented Feb. 22, 1876.
vnnmssas: WM
N. PETERS, PHOTOLITHOGRAPHER, WASHINGTON. D C.
UNITED STATES PATENT OFFICE.
ELIHU R. PETIIT, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT IN ELECTRO-M AGNETIC DENTAL- ENGINES.
Specification forming part of Letters Patent No. 173,864, dated February 22, 1876; application filed January22, 1876.
To all whom it may concern Be it known that I, ELIEIU ROBERTS PETIIT, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and Improved Armature and Magnetic Engine Attachment to Dental Engines, of which the following is a specifica tion:
My invention consists of a simple contrivance for coupling a magnetic engine to a dental engine, for use instead ofthe footpower for driving it, using the armaturewheel of the magnetic engine in the place of the driving-wheel of the foot-power for running the band, and mounting the standard of the dental engine on the shaft of the armature for its support.
Figure l is a side elevation of my improved magnetic and dental engine contrivance, and Fig. 2 is a front elevation.
Similar letters of reference indicate corresponding parts.
A is the crotched standard of the dental engine, which I cut in two 'ust below the bearings B, for the shaft 0 the driving-pulley, which is worked by the foot-trcadle, and fits on a shaft, (J, which I mount in bearings D of standards E, which I secure to the projecting ends of the armature-shaft F, with extensions G to the base, or nearly, connecting with spring H, or any other suitable contrivance to keep the standard upright, but at the same time allowing it to vibrate for swinging the top forward and backward, as may sometimes be required in the manipulation of the tools. This brings the shaft-pulley I directly over the armature-wheel J, so that it may serve for the band-wheel, for which I make V notches'in the armature for a round band, K, and flat bottomed notches for a flat band.
In making new machines for connection with a magnetic engine, the crotch L of the standardvwill be extended so as to serve for the standards E, and lit the bearings D on the' armature-shaft, thus dispensing with the shaft 0, which is only necessary in theconnection of dental engines made for foot-power.
Having thus described my invention, I claim as new and desire to secure by Letters Patent l. The combination ofa magnetic engine with the standard of a dental engine, in the manner described, whereby the armature-wheel of the magnetic engine lines with the pulley of the dental engine, and at the same time the armature-shaft serves for the support of the dental engine standard, substantially as specitied.
2. Also, the armature-wheel of a magnetic engine, provided with a band-groove to utilize it for driving by a band running on it,
substantially as specified.
ELIHU R. PETTIT. Witnesses:
ALLAN W. RICHARDS, L. BASIET.
US173864D Improvement in electro-magnetic dental engines Expired - Lifetime US173864A (en)

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