US812937A - Tachometer or speed-indicator. - Google Patents

Tachometer or speed-indicator. Download PDF

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Publication number
US812937A
US812937A US21251004A US1904212510A US812937A US 812937 A US812937 A US 812937A US 21251004 A US21251004 A US 21251004A US 1904212510 A US1904212510 A US 1904212510A US 812937 A US812937 A US 812937A
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Prior art keywords
speed
indicator
tachometer
socket
koblizek
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US21251004A
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Vinzenz Koblizek
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds

Definitions

  • My invention relates to certain new and useful improvements in tachometers orspeedimlicarors for rotary motion, and has for its object to improve this kind of devices in such a manner that. besides greatest simplicity, they excel all similar apparatus by most solid construction, by absolutely reliable working, and lreedom from trembling motion. I obtain the said objects by the mechanism hereinafter described, and shown upon the annexed drawing. in which a vertical section of a tachometer according to my invention is illustrated.
  • the belt-pulley a turns the shaft I).
  • the fixed socket c and the shiitable socket 4! are united through springs with the centrifugal weights e.
  • the socket cl moves to the left in consequence of the centrifugal movement of the weights 0 and carries with it the angular toothed gear f.
  • the latter actuates the indicator 7, on an empirical scale of which the speed can be read directly.
  • the alarvwclappers 72 which on the maximum speed being, exceeded cause the bell i to ring continuously.

Description

. 812,937 PATENTED FEB. 20, 1906.
V. KOBLIZEK.
TAGHOMETER OR SPEED INDICATOR.
' APPLICATION FILED Jun 14, 1904.
mam/zsrrrrss TACHOIWETER OR SPEED-ENEJECA'HTOR.
No eraser.
Specification of Letters Patent.
Patented Feb. 20, 1906.
Apnlication filed June 14, 1904- Serial No. 212,510.
Be it known that l, VINZENZ KOBLIZEK, inzlliilizlCiuIl-l, a subject of the Emperor of :"Lustriadlungary, and a resident of Salmthal, Bohemia, inthe Austrian Empire, have invented certain new and useful Improvements in 'lachometers or Speed-Indicators, of which the following is a specification.
My invention relates to certain new and useful improvements in tachometers orspeedimlicarors for rotary motion, and has for its object to improve this kind of devices in such a manner that. besides greatest simplicity, they excel all similar apparatus by most solid construction, by absolutely reliable working, and lreedom from trembling motion. I obtain the said objects by the mechanism hereinafter described, and shown upon the annexed drawing. in which a vertical section of a tachometer according to my invention is illustrated.
Similar letters rel'erto similar parts throughout the .lescri1.)tion.
r rccording to the drawing, the belt-pulley a turns the shaft I). Upon the latter there is arranged the fixed socket c and the shiitable socket 4!. Both are united through springs with the centrifugal weights e. During the rotation the socket cl moves to the left in consequence of the centrifugal movement of the weights 0 and carries with it the angular toothed gear f. The latter actuates the indicator 7, on an empirical scale of which the speed can be read directly. On the socket d are further arranged the alarvwclappers 72 which on the maximum speed being, exceeded cause the bell i to ring continuously.
The main advantage of my new invention is, beyond its simplicity, the great regularity in its working, owing to the springs.
,Having thus described my invention, I claim as new In a speed-indicator, in combination, a rotatable shaft, a stationary sleeve secured to I it, and a secondsleeve sliding on it, bowed springs carrying centrifugal weights uniting the two sleeves; an angular rack carried by the sliding sleeve, indicating mechanism actuated by the said rack, clappers projecting from the sliding sleeve, and a gong located within range of the same, substantially as described.
In witness whereof I have hereunto signed my name, this 3d day of May, 1904, in the.
presence of two subscribing witnesses.
VINZENZ KOBLIZEK. Witnesses:
LUDWIG KoHN, ERNST ScHoFLEn.
US21251004A 1904-06-14 1904-06-14 Tachometer or speed-indicator. Expired - Lifetime US812937A (en)

Priority Applications (1)

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US21251004A US812937A (en) 1904-06-14 1904-06-14 Tachometer or speed-indicator.

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US21251004A US812937A (en) 1904-06-14 1904-06-14 Tachometer or speed-indicator.

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482895A (en) * 1946-03-29 1949-09-27 Bemis Bro Bag Co Method of making paper yarn
US2581286A (en) * 1949-11-05 1952-01-01 Deere & Co Speed responsive device for planters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2482895A (en) * 1946-03-29 1949-09-27 Bemis Bro Bag Co Method of making paper yarn
US2581286A (en) * 1949-11-05 1952-01-01 Deere & Co Speed responsive device for planters

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