US7501A - Joint for compasses for measuring - Google Patents
Joint for compasses for measuring Download PDFInfo
- Publication number
- US7501A US7501A US7501DA US7501A US 7501 A US7501 A US 7501A US 7501D A US7501D A US 7501DA US 7501 A US7501 A US 7501A
- Authority
- US
- United States
- Prior art keywords
- joint
- compasses
- measuring
- compass
- alteneder
- 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
- 210000001503 Joints Anatomy 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/16—Features common to compasses, dividers, and callipers
- B43L9/20—Pivots
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/44—Clasp, clip, support-clamp, or required component thereof
- Y10T24/44265—Gripping member face integral with or rigidly affixed to screw-driving portion
Definitions
- my improved compa-ss joint I form the heads of the two halves (a, b) t-o fit with their flat sides together.
- the set screws (e) serve to prevent the screws (d) from becoming loose.
Description
UNITED STATES PATENT FFICE.
T. ALTENEDER, OF PHILADELPHIA, PENNSYLVANIA.
JOINT FOR COMPASSES FOR MEASURING.
Specification of Letters Patent No. 7,501, dated July 16, 1850.
To all whom t may concern Be it known that I, THEoDoR ALTENEDER, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Compass- Joints, and that the following is a full, clear, and eXact description of the principle or character which distinguishes them from all other things before known and of the usual manner of making, modifying, and using the same, reference being had to the accompanying drawings, of which- Figure 1 is a view of the compass joint, Fig 2 a section, Fig?) the several parts separated.
In the ordinary method of constructing the joints of Compasses or dividers for drawing instruments or other purposes, they are liable after a short time to become loose; and to delay that period as long as possible they are generally made at rst too tight and stiff. And the screw with which thebetter class of instruments are made, is butA an im-` perfect remedy for such ditliculties. Besides the faults of such instruments, they are diiicult of construction requiring the most skillful workmen to produce the requisite nicety of fit.
In my improved compa-ss joint I form the heads of the two halves (a, b) t-o fit with their flat sides together. The cap piece (c) lits loosely outside of the pieces (a and b) and the center screws (el) having rounding or conical ends, are screwedinward through the sides of the cap piece (c), and their points enter shallow holes of corresponding shape in the outsides of the pieces (a and b) which thuswork between centers, and are pressed together, with any degree of fric tion desired, and are capable of the mostperfect adjustment. The set screws (e) serve to prevent the screws (d) from becoming loose.
Having thus fully described my improved compass joint, what I claim as new therein and which I desire to secure by Let-ters Patent is- A compass joint formed of two surfaces held together by center screws passing through a cap piece, substantially asherein described.
THEODOR ALTENEDER.
/Vitnesses EDWARD EVERETT, T. C. DoNN,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US7501A true US7501A (en) | 1850-07-16 |
Family
ID=2067809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US7501D Expired - Lifetime US7501A (en) | Joint for compasses for measuring |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US7501A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3398920A (en) * | 1964-08-03 | 1968-08-27 | Fisher Haynes Corp | Hinge clamp |
| US20030076568A1 (en) * | 2001-10-22 | 2003-04-24 | Adc Telecommunications, Inc. | Light frequency stabilizer |
-
0
- US US7501D patent/US7501A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3398920A (en) * | 1964-08-03 | 1968-08-27 | Fisher Haynes Corp | Hinge clamp |
| US20030076568A1 (en) * | 2001-10-22 | 2003-04-24 | Adc Telecommunications, Inc. | Light frequency stabilizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7501A (en) | Joint for compasses for measuring | |
| US824299A (en) | Combination-rule. | |
| US651142A (en) | Slide-rule. | |
| US45677A (en) | Improvement in modes of adjusting circular saws on their arbors | |
| US618161A (en) | Arthur william brightmore | |
| US13603A (en) | Optical instrument | |
| US803287A (en) | Level. | |
| US981598A (en) | Combined rule and protractor. | |
| US523259A (en) | beeler | |
| US53374A (en) | Improvement in lathes | |
| US144270A (en) | Improvement in watches | |
| USD39185S (en) | Anthony dixon brogan and andrew murray mallooh | |
| US994570A (en) | Combined protractor and t-square. | |
| US73126A (en) | Eliphalet s | |
| US1252009A (en) | Micrometer-caliper thimble. | |
| US1172281A (en) | Protractor. | |
| US645269A (en) | Plumb-level. | |
| US142898A (en) | Improvement in eccentrics | |
| US831354A (en) | Pivot-joint. | |
| USD39666S (en) | Edward john dobbins | |
| US711464A (en) | Bevel. | |
| US52769A (en) | stockton | |
| US716001A (en) | Spirit-level. | |
| US371740A (en) | daelinq | |
| US75533A (en) | Improvement in spirit-levels |