US407903A - Friederich sohlatter - Google Patents

Friederich sohlatter Download PDF

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US407903A
US407903A US407903DA US407903A US 407903 A US407903 A US 407903A US 407903D A US407903D A US 407903DA US 407903 A US407903 A US 407903A
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arm
slide
pin
finger
hand
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00Instruments as specified in the subgroups and characterised by the use of mechanical measuring means
    • G01B3/18Micrometers

Description

F. SGHLATTERQ MIOROMETER GAGE.
(No ModeL) Patented July 30, 1889;
NV PETERS. Phumuma m her. wahin m. 0.0
FRIEDERICH SOHLATTER, OF MADRETSOH, SVITZERLAND.
MICROMETER-GAGE.
I SPECIFICATION forming part of Letters Patent No. 407,903, dated July 30, 1889.
Application filed February 19, 1889. Serial No. 300,498- (No model.) Patented in Switzerland December 31, 18 88, No. 303.
To all whom it may concern.-
Be it known that I, FRIEDERICH SCHLAT- TER, a citizen of the Republic of Switzerland, residing at Madretsch, in the Republic of Switzerland, have invented certain new and useful Improvements in Micrometrical Meastiring-Instruments, (for which I have obtained Letters Patent in Switzerland, N o. 303, dated December 31, 1888,) of which the following is a specification.
This invention relates to improvements in that class of measuring-instruments that are used for measuring very small dimensions, such as the thickness of paper, fabrics, sheet metal, wire, &c.
The object of my invention is to provide a measuring-instrument of this kind which permits of reading off the dimensions of the article at any desired time after the measurement has been taken.
The invention consists in the construction and combination of parts and details, as will be fully described and set forth hereinafter, and finally pointed out in the claims.
In the accompanying drawings, Figure 1 is a face view of my improved measuring-instrument. Fig. 2 is a vertical longitudinal sectional view of the same on the line on 0:, Fig. 3. Fig. 3 is a vertical transverse sectional View of the same on the line y 11 Fig. 2. Fig. 4 is an elevation of the upper half portion of the instrument, the pointer being provided with a nonius. Fig. 5 is an enlarged detail face view of the fingered arm. Fig. 6 is a side view of the same.
Similar letters of reference indicate corresponding parts.
The casing A,Which is provided at its lower end with a recess 0 in one side edge, contains the slide B, provided with the abutting surface B, which is opposite the other abutting surface formed by the end of a screw C, which is adjustable in the bottom arm 0 of the casing A, and can be locked in place by means of a suitable nut P. The slide B is provided'on its upper end with a head A. In the casing an arbor L is journaled, 011 which is mounted a pinion K, that engages a rack 1), formed on one edge of a longitudinal slot b in the slide B. On the outer end of the arbor L an arm H is fixed and adapted to rotate over a dial E, fixed on thefront of the casing and provided with a circular graduated scale. To the free end of the arm H the finger n is pivoted,which is provided at its hinged end with the two shoulders or stops n or W, that can rest against the pin 01 on the arm H. A spring 2', secured to the arm H and bearing against a pin a" of the finger n, keeps said finger in line with the arm H and the stop 92 against the pin 17/, as shown in Fig. 5. A pointer G is mounted onahub J on the arbor L, and said pointer G is provided with a proj ecting-pin g, on which the finger n of the arm H can act.
The glass R over the dial is held in a ring D, mounted to rotate on the plate F, on which the dial E is held, and said ring D is provided with the pin Q, which is to be used for adjusting the apparatus for controlling certain measurements.
The slide B is providedwitha longitudinal slot B containing the spiral spring M, of which one end bears against the pin N, projecting from the case 0 into said slot and the other end bears against the upper end of the slot B thus pressing the slide B upward. If desired, the pointer or hand G may be pro vided with a nonius W for very accurate measurements.
The operation is as follows: WVhen the abutting surfaces B and C are as far apart as possible, the hand or pointer G is at O, and when the said abutting surfaces are brought in contact the hand or pointer G will have made one revolution from right to left, and will again be at O. The article to be measured is placed upon the abutting surface 0 and the slide B pressed down until the surface B rests upon the said article. By pressing down the slide B the arm H is rotated from right to left, and its finger it strikes against the pin 9 on the pointer or hand G, and also turns the same from right to left. If the object is very small, the slide B can be depressed farther than if the object is larger, and thus for a smallobj ect the hand or pointer G will be moved farther to the left than for a larger object. As the graduated. scale is subdivided from left to right, it follows that as the hand G rotates from right to left it gradually passes over the lower numerals of the scale. When the slide B is released, the spring M throws it upward and brings the arm H back to its initial position, the hand G remaining in the position in which it indicates the dimension of the article measured. Measurements can thus be taken with the abovedescribed instrument in the dark and the measurements read off when the instrument is brought into light, as the hand G retains its position. i I
To bring the hand G back to O on the dialscale, the slide B is pushed down until the surfaces B and O are in contact, the object having been removed. Thereby the arm H is caused to make one complete revolution from right to left, and in so doing carries the hand G around to 0. If the slide B is now released, the spring M throws it upward and the arm H is caused to makea complete revolution from left to right. In so doing the end of the finger n swings to the left, where it strikes against the pin 9 and passes under said pin, the spring t bringing said finger into the normal position as soon as the pin g'has been passed.
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a measuring-instrument, the combination of a casing provided with a dial, a slide in said casing provided with a rack, an arbor in said casing provided with a pinion which is engaged by said rack, an arm fixed on said arbor, a hand mounted on said arbor over the dial and provided with a pin which is engaged ing spring-finger, a hand mounted to swing over the dial and provided with a pin on which the spring-finger of the arm can act, and a spring abutting against a fixed point of the casing and pressing the slide upward, substantially as set forth.
3. In a measuring-instrument, the combination of the casing 13 and the slide 0, having the slots B and b, the latter having the v rack Z) formed on one edge, the arbor L, the pinion K on the same engaging the rack b, the spring M in the slot B the dial E on the casing, the arm H on the arbor L, the finger n, pivoted on said arm, the spring *6, secured to the arm H, actingon the finger n, and the hand G, mounted to rotate over the dial and provided with the pin g, on which the finger n can act, substantially as set forth.
In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.
FRIEDERIOH SCHLATTER.
Witnesses:
BOYD WVINcHEsTER, JoHANN Woman.
US407903D Friederich sohlatter Expired - Lifetime US407903A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508849A (en) * 1945-11-30 1950-05-23 Neville M Williams Wheel play indicator
US2580227A (en) * 1946-07-05 1951-12-25 Joseph C Hoover Gauge
US2660798A (en) * 1951-01-09 1953-12-01 Standard Gage Co Inc Dial indicator gauge
US2707333A (en) * 1949-05-06 1955-05-03 Schaurte Paul Electrical comparator
US2715165A (en) * 1953-03-16 1955-08-09 Fed Products Corp Eccentric tolerance indicator
US3012431A (en) * 1959-05-11 1961-12-12 Schmidt Michael Main spring and bridle torque gauge
US3017702A (en) * 1959-12-11 1962-01-23 Christopher De J Hercules Tire tread safety gauge
US3217417A (en) * 1962-03-02 1965-11-16 Evert L Love Handloaders cartridge case gauge device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2508849A (en) * 1945-11-30 1950-05-23 Neville M Williams Wheel play indicator
US2580227A (en) * 1946-07-05 1951-12-25 Joseph C Hoover Gauge
US2707333A (en) * 1949-05-06 1955-05-03 Schaurte Paul Electrical comparator
US2660798A (en) * 1951-01-09 1953-12-01 Standard Gage Co Inc Dial indicator gauge
US2715165A (en) * 1953-03-16 1955-08-09 Fed Products Corp Eccentric tolerance indicator
US3012431A (en) * 1959-05-11 1961-12-12 Schmidt Michael Main spring and bridle torque gauge
US3017702A (en) * 1959-12-11 1962-01-23 Christopher De J Hercules Tire tread safety gauge
US3217417A (en) * 1962-03-02 1965-11-16 Evert L Love Handloaders cartridge case gauge device

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