US149052A - Improvement in dividers - Google Patents
Improvement in dividers Download PDFInfo
- Publication number
- US149052A US149052A US149052DA US149052A US 149052 A US149052 A US 149052A US 149052D A US149052D A US 149052DA US 149052 A US149052 A US 149052A
- Authority
- US
- United States
- Prior art keywords
- dividers
- arch
- improvement
- legs
- cam
- 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 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B3/00—Measuring instruments characterised by the use of mechanical techniques
- G01B3/16—Compasses, i.e. with a pair of pivoted arms
Definitions
- Figure 1 is a perspective view of my improved extension-dividers with the points in place.
- Fig. 2 is a section of one of the legs.
- Fig. 3 is a perspective of the holding-ring.
- Fig. Li is a sectional view, showing the engagement of the thumb-cam with the arch.
- A represents the legs of the dividers, hinged together at a in the usualmanner. One or both of these legs thereof, sliding up the face of the inclined plane, compresses the tubular end, and holds firmly the extension pointV or pencil in place.
- -D is the arch, secured by the usual thumbscrew E to one of the legs, and passing through a proper opening in the opposite leg.
- the position of the legs, when distended, is governed by the thumb-cam el, which is inserted through the leg in such a manner that when turned in the proper direction the face of the cam will press against and bind the arch.
- This arch is usually made of a thin and dat piece of iron or steel, the edge of which is too thin to form a reliablebearing-surface for the cam, although it may be used in connection with the flat arch. I prefen said arch to be made of a round metal rod, bent to proper shape. Then the bearin glface of the cam cl should be made concave to obtain a greater bearing-surface on the con vex face of the arch.
Description
G. C. MILLER.
Dividers.
, NO IAQO'BZI i Pa'tentedMarch3hl8-74.
UNITED STATES PATENT OEEICE.
GEORGE O. MILLER, OF DETROIT, MICHIGAN, ASSIGNOR TO JAMES O. MALOY,
' OF OIL CITY, PENNSYLVANIA.
IMPROVEMENT IN DIVIDERS.
Specification forming part of Letters Patent No. 149,052, dated March 3l, 1874; application filed December 2:2, 1873.
To all whom #may concern:
Beit known that I, GEORGE C'. MILLER, of Detroit, in the county of Vayne and State of Michigan, have invented an Improvement in Dividers, of which the following is a specification:
The nature of this invention relates to new and useful improvements iu the construction of dividers 5 and consists in the novel construction and arrangement of the devices for holding the legs in the desired position, as more fully hereinafter explained.
Figure 1 is a perspective view of my improved extension-dividers with the points in place. Fig. 2 is a section of one of the legs. Fig. 3 is a perspective of the holding-ring. Fig. Liis a sectional view, showing the engagement of the thumb-cam with the arch.
Like letters refer to like parts in each iigure.
In the annexed drawings, A represents the legs of the dividers, hinged together at a in the usualmanner. One or both of these legs thereof, sliding up the face of the inclined plane, compresses the tubular end, and holds firmly the extension pointV or pencil in place.
-D is the arch, secured by the usual thumbscrew E to one of the legs, and passing through a proper opening in the opposite leg. The position of the legs, when distended, is governed by the thumb-cam el, which is inserted through the leg in such a manner that when turned in the proper direction the face of the cam will press against and bind the arch. This arch is usually made of a thin and dat piece of iron or steel, the edge of which is too thin to form a reliablebearing-surface for the cam, although it may be used in connection with the flat arch. I prefen said arch to be made of a round metal rod, bent to proper shape. Then the bearin glface of the cam cl should be made concave to obtain a greater bearing-surface on the con vex face of the arch.
What I claim as my invention, and desire to secure by Letters Patent, is-
1. In combination with the leg A, the thumbcam d and arch D,substantially as and for the purposes specied.
2. In combination with said thumb-cam d, the round arch D, as and for the purposes described.
GEO. O. MILLER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US149052A true US149052A (en) | 1874-03-31 |
Family
ID=2218465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US149052D Expired - Lifetime US149052A (en) | Improvement in dividers |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US149052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2457474A (en) * | 1946-05-27 | 1948-12-28 | William L Jameson | Locking means for dividers |
| US20050120575A1 (en) * | 2002-02-18 | 2005-06-09 | Molmann Odd V. | Tool for measuring the diameter of a body with polygonal or circular cross section |
| FR3018221A1 (en) * | 2014-03-06 | 2015-09-11 | Aime Ledin Ets | COMPASSES COMPRISING TWO BRANCHES ARTICULATED IN RELATION TO ONE OF THEIR END |
-
0
- US US149052D patent/US149052A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2457474A (en) * | 1946-05-27 | 1948-12-28 | William L Jameson | Locking means for dividers |
| US20050120575A1 (en) * | 2002-02-18 | 2005-06-09 | Molmann Odd V. | Tool for measuring the diameter of a body with polygonal or circular cross section |
| US7752770B2 (en) * | 2002-02-18 | 2010-07-13 | Moelmann Odd Viggo | Tool for measuring the diameter of a body with polygonal or circular cross section |
| FR3018221A1 (en) * | 2014-03-06 | 2015-09-11 | Aime Ledin Ets | COMPASSES COMPRISING TWO BRANCHES ARTICULATED IN RELATION TO ONE OF THEIR END |
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