US483354A - hinden - Google Patents
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- Publication number
- US483354A US483354A US483354DA US483354A US 483354 A US483354 A US 483354A US 483354D A US483354D A US 483354DA US 483354 A US483354 A US 483354A
- Authority
- US
- United States
- Prior art keywords
- points
- lens
- plates
- hinden
- shaft
- 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
Links
- 238000010276 construction Methods 0.000 description 2
- 230000003287 optical Effects 0.000 description 2
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
- G01B5/213—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures for measuring radius of curvature
Definitions
- Figure 1 is an elevation of my improved instrument with the cover removed.
- Fig. 2 is an elevation of the said cover.
- Fig. 3 is a central vertical diametrical section to more clearly show the operating parts.
- A represents a suitable case or box, in the bottom of which is secured a frame-plate B, which carries the operating parts of the device.
- a portion of this plate B is carried through the wall of the case A, so as to form the back plate a of a projecting case 0, between which and the front plate I) the contactpoints are pivotally secured.
- a segmental rack G upon its inner end a segmental rack G, said rack being formed upon the arc of a circle of which the pivotal point of the plate E is the center.
- This rack engages with a small pinion H, secured to the central shaft I, the upper end of which latter projects through a transverse retaining-bar J and carries asuitable index-pointer K.
- a hairspring L encircles the shaft and has one end secured to said shaft, while its opposite end is secured adjustably to a suitable post M.
- N is a graduated dial-ring.
- WVhat I claim as my invention is- 1.
Description
(No Model) M. J. HINDEN.
LENS MEASURING INSTRUMENT. "No. 483,354. I Patented Sept; 27, 1892.
WITNESSES.- INVENTOR. H
ATTORNEYV NiTED STATES PATENT OFFICE.
MATIIIAS J. I-IINDEN, OF CLEVELAND, OHIO, ASSIGNOR TO THE JULIUS KING OPTICAL COMPANY, OF SAME PLACE.
LENS-MEASURING INSTRUMENT.
SPECIFICATION forming part of Letters Patent No. $83,354, dated September 27, 1892.
Application filed March 29, 1892.
To all whom it may concern:
Be it known that I, MATHIAS J. HINDEN, a citizen of the United States, residing at Cleveland in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Lens Measuring Instruments, of which the following is a specification, reference being had therein to the acstruction of the plates which carry the contact-points and in the construction, arrangement, and combinations of the various parts, all as more fully hereinafter set f0rth,and pointed out in the claims.
In the drawings, Figure 1 is an elevation of my improved instrument with the cover removed. Fig. 2 is an elevation of the said cover. Fig. 3 is a central vertical diametrical section to more clearly show the operating parts.
A represents a suitable case or box, in the bottom of which is secured a frame-plate B, which carries the operating parts of the device. A portion of this plate B is carried through the wall of the case A, so as to form the back plate a of a projecting case 0, between which and the front plate I) the contactpoints are pivotally secured.
Serial No. 426,909. (No model.)
upon its inner end a segmental rack G, said rack being formed upon the arc of a circle of which the pivotal point of the plate E is the center. This rack engages with a small pinion H, secured to the central shaft I, the upper end of which latter projects through a transverse retaining-bar J and carries asuitable index-pointer K. A hairspring L encircles the shaft and has one end secured to said shaft, while its opposite end is secured adjustably to a suitable post M.
N is a graduated dial-ring.
The parts being constructed and arranged substantially as herein shown and described, care should be taken in the adjustment of the device that the two contact-points d be substantially on the same plane, with the points a slightly below such plane, and the pointer being vertically downward, as shown in Fig. 1. By applying a lens upon the points d and then pressing down upon them until the central points e come in contact with the lens the plates are compelled to turnupon their fulcrurns and the segmental rack causes the finger-shaft to partially rotate, thus passing the pointer over the face of the dial. Should the lens applied be convex, its degree of convexity will be indicated upon the scale leftof zero. If concave, the degree of-concavity will be indicated by the needle passing to the right of zero, while if it be perfectly fiat the needle will rest upon zero. Upon removing the lens the action of the spring returns the parts to their normal positions.
WVhat I claim as my invention is- 1. In alens-measuring instrument, the combination of pivoted plates carrying contactpoints, said plates engaging each other, and indicating mechanism, said mechanism consisting of a lever connected to one of said plates and carrying at its inner end a segmental rack and the connections for moving an index-finger over a graduated dial, substantially as set forth.
2. The combination of two plates D E, carrying contact-points (Z c, lever F, shaft I, pinion H, pointer K, and a graduated dial N, substantially as and for the purposes described.
r 3. The combination of two movable plates presenceof two witnesses, this 26th day of D E, carrying contact-points d e, lever F, March, 1892. shaft I, pinion H, pointer K, and spring L,
the parts being constructed, arranged, and MATHIAS HINDEN' 5 operating substantially in the manner and Vii-messes:
for the purposes specified. H. S. SPRAGUE,
In testimony whereof I affix my signature, in H. L. WARREN.
Publications (1)
Publication Number | Publication Date |
---|---|
US483354A true US483354A (en) | 1892-09-27 |
Family
ID=2552205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US483354D Expired - Lifetime US483354A (en) | hinden |
Country Status (1)
Country | Link |
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US (1) | US483354A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734277A (en) * | 1956-02-14 | Gauges |
-
0
- US US483354D patent/US483354A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2734277A (en) * | 1956-02-14 | Gauges |
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