US361728A - Plumb-level - Google Patents
Plumb-level Download PDFInfo
- Publication number
- US361728A US361728A US361728DA US361728A US 361728 A US361728 A US 361728A US 361728D A US361728D A US 361728DA US 361728 A US361728 A US 361728A
- Authority
- US
- United States
- Prior art keywords
- plumb
- needle
- level
- staff
- sonntag
- 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
- 239000011521 glass Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 235000015096 spirit Nutrition 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
- G01C9/12—Measuring inclination, e.g. by clinometers, by levels by using a single pendulum plumb lines G01C15/10
Definitions
- FREDERICK SONNTAG OF FORT ATKINSON, WISCONSIN.
- My invention relates to improvements in plumbing-rules to be used in adjusting plumblines, angles, levels, &c., in which a pendulum-needle is used instead of a vial of spirits or cord and ball; and my object'- is, first, to
- FIG. 1 is a side View of my plumb rule or staff.
- Fig. 2 is also a side view of the same with the cover B removed, showing the inside mechanism.
- Fig. 3 is a longitudinal section of Fig. Leut at dotted line x x.
- Fig. 4 is also a longitudinal section of the staff A,Fig. 1,eX- cept the pivot upon which the plumb-needle is hung, the change of which will be more fully explained hereinafter.
- the rule or staff A is constructed of the best hard wood, three and one-half inches wide and one and one-half inches thick, dressed straight,two and one-half feet long. One side is rabbeted to receive the cover B, rabbeted one-half an inch, leaving one-half an inch at each edge of the staff the full thickness, as
- Fig. 4. shows the plumb-needle C" suspended upon a pivot similar to that of the needle of a compass.
- the metal needle-rest D' is provided with a countersink, in which the point d rests.
- the needle is shown formed about the rest so as to balance itself and at the same time prevent the point d from lifting out of the countersink D', and thereby secures it against any accidental displacement.
- a glass a a, is shown secured in the hole E of each piece A and B, and upon the inner side ofeach glass is marked a scale, Figs. 1 and 2, to which the needle C C' points, to indicate the position of the staff A.
- the vertical weighted plumb-needle C provided with a vertical pointed pivot, d, and a rest, D', with the needle C" turned about it so as to balance upon the point of pivot d, substantially as and for the purpose set forth.
Description
(No Model.)
F. SONNTAG. PLUMB LEVEL.
Patented A111126, 1887.
gmwyes Imam?? UNITED STATES PATENT OFFICE..
FREDERICK SONNTAG, OF FORT ATKINSON, WISCONSIN.
PLUME-LEVEL.
SPECIFICATION forming part of Letters Patent No. 361,728, dated April 26, 1887 Application filed February 1, 1886. Serial`N0. 190,425. (No model.)
To all 11,171,071?! it may concern.-
Beit known that I, FREDERICK SONNTAG, a citizen of the United States, residing at Fort Atkinson, in the county of Jefferson and State of Visconsin, have invented a new and useful Plumb-Rule for Mechanical Use, of which the following is a specification.
My invention relates to improvements in plumbing-rules to be used in adjusting plumblines, angles, levels, &c., in which a pendulum-needle is used instead of a vial of spirits or cord and ball; and my object'- is, first, to
provide against the action of the wind upon the mechanism; second, adapting it to adjustment for various angles with all the precision that a perpendicular line can be adj usted by the old plumb line and ball, with no wind to disturb. I attain these objects by the meehanism illustrated in the accompanying drawings, in which- Figure 1 is a side View of my plumb rule or staff. Fig. 2 is also a side view of the same with the cover B removed, showing the inside mechanism. Fig. 3 is a longitudinal section of Fig. Leut at dotted line x x. Fig. 4 is also a longitudinal section of the staff A,Fig. 1,eX- cept the pivot upon which the plumb-needle is hung, the change of which will be more fully explained hereinafter.
Similarletters refer to similar parts througlr out the several views.
The rule or staff A is constructed of the best hard wood, three and one-half inches wide and one and one-half inches thick, dressed straight,two and one-half feet long. One side is rabbeted to receive the cover B, rabbeted one-half an inch, leaving one-half an inch at each edge of the staff the full thickness, as
. shown in Figs. l and 2. The cover Bis seclear of the sides of the chamber A' until checked by the upper end coming into contact with the sides.
Fig. 4. shows the plumb-needle C" suspended upon a pivot similar to that of the needle of a compass. The metal needle-rest D' is provided with a countersink, in which the point d rests. The needle is shown formed about the rest so as to balance itself and at the same time prevent the point d from lifting out of the countersink D', and thereby secures it against any accidental displacement.
In Fig. 3 a glass, a a, is shown secured in the hole E of each piece A and B, and upon the inner side ofeach glass is marked a scale, Figs. 1 and 2, to which the needle C C' points, to indicate the position of the staff A.
It will be observed that a ball and line77 is the oldest device known to be used for the purpose of adjusting plumb-lines, and still is acknowledged the most accurate principle known. It will also be observed that my weighted pendulum-needle embodies the same principle and accuracy, and is not liable to be affected by the wind, nor liable to the breakage of a cord by an accidental fall.
I do not intend to claim, broadly,aweighted plumb-needle suspended in the chamber of a plumb-rule, it having been used prior to my invention; but
Vhat I do claim as my improvement, for which I desire to secure Letters Patent of the United States, is
In combination with the plumbstock A, provided with a longitudinal chamber, A', circular aperture E in the sides, for exposing the upper end of needle C", the vertical weighted plumb-needle C", provided with a vertical pointed pivot, d, and a rest, D', with the needle C" turned about it so as to balance upon the point of pivot d, substantially as and for the purpose set forth.
FREDERICK SONNTAG. [1.. s]
Vitnesses:
C. A. CAsWELL, TnoMAs CRANE.
Publications (1)
Publication Number | Publication Date |
---|---|
US361728A true US361728A (en) | 1887-04-26 |
Family
ID=2430762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US361728D Expired - Lifetime US361728A (en) | Plumb-level |
Country Status (1)
Country | Link |
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US (1) | US361728A (en) |
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0
- US US361728D patent/US361728A/en not_active Expired - Lifetime
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