US372921A - Spirit-level - Google Patents
Spirit-level Download PDFInfo
- Publication number
- US372921A US372921A US372921DA US372921A US 372921 A US372921 A US 372921A US 372921D A US372921D A US 372921DA US 372921 A US372921 A US 372921A
- Authority
- US
- United States
- Prior art keywords
- spirit
- level
- tube
- bulb
- glass
- 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 12
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005406 washing Methods 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
- G01C9/18—Measuring inclination, e.g. by clinometers, by levels by using liquids
- G01C9/24—Measuring inclination, e.g. by clinometers, by levels by using liquids in closed containers partially filled with liquid so as to leave a gas bubble
- G01C9/26—Details
- G01C9/28—Mountings
Definitions
- This invention relates to spirit-levels in which the glass 4spirit-bulbis carried in a slotted metallic tubc, which is adapted to be ro tated to bring the glass spirit-bulb into eX-. posed position when the level is in use and to cover and protect said bulb when the device is not in use.
- Figure l is a side elevation of this improved spirit-level.
- Fig. 2 is a plan or top view thereof.
- Fig. 3 is a detail view of the metallic inclosing-tube andthe screws for holding said tube in the body or frame.
- Fig. 4t is a longitudinal view ofthe glass spirit-bulb.
- Fig; 5 is a side elevation ofthe body or frame ofthis improved spirit-level with the spirit-tube and inclosingtube removed.
- Fig. G is an end view of said body.
- the body A of this improved spirit-level is provided with upright heads A A near its opposite ends, saidheads having screw-threaded openings 'a through them.
- a metallic tube, l5, countersunk ⁇ at its opposite ends is support-ed between said heads and held in position by the screws C C, which pass through the holes a in said heads, and are tapered at their inner ends to fit the countersunk ends ofthe tube and center the latter.
- This metallic inclosing-tube is provided with a slot, c, at or near its center on one side.
- a glass spiritbulb, D is inserted in the metallic tube B, and can be seen through the slot in the latter.
- the metallic tube B When the spirit-level is in use, the metallic tube B is in the position shown in Figs l and 2, With its slotted face uppermost to expose the bulb. When the level is put away,the inclosiug-tube B is rotated a half-revolution on the screws C C, whereby its slotted face is covered by .the body of the structure and the glass bulb protected.
- Vspiritlevel which is very simple in its construction and not liable to get out of true, as the tapering screws, in connection with countersunkQendahave a constant tendency to preserve the proper alignment of the bulb.
- I claim- A protected spirit-level comprising the body A, having the perforated screw-threaded heads A, the slotted rotary inclosing-tube B, having countersunk ends, the glass bulb D Within said inclosing-tube, and the screws C C, passing through said screw-threaded heads and having tapered inner ends which engage the countersunk ends of the inclosingtube, substantially as described.
Description
(No Mdel.)
C. B. LONG. SPIRITLBVEL.
No. 372,921. V 'Patented-Nov. 8, 1887.
a -Zj N, PETERS. Phumumngmpher. washing C.
UNITED STATES PATENT OEErcE..
CHARLES BENJAMIN LONG, OF WORCESTER, MASSACHUSETTS.
SPIRIT-LEVEL.
SPECIFICATION forming part of Letters Patent No. 372,921, dated November 8, 1887,
' Application filed May 11, 1886. Serial No. 201,885. (No model.)
.To @ZZ whom it may concern:
Be it known that I, CHARLES BENJAMIN LoNG,a citizen ofWorcester,county of Worcester, and State of Massachusetts, have invented new and useful Improvements in Spirit-Levels, of which the following is a specification.
This invention relates to spirit-levels in which the glass 4spirit-bulbis carried in a slotted metallic tubc, which is adapted to be ro tated to bring the glass spirit-bulb into eX-. posed position when the level is in use and to cover and protect said bulb when the device is not in use.
In the accompanyingdrawings, Figure l is a side elevation of this improved spirit-level. Fig. 2 is a plan or top view thereof. Fig. 3 is a detail view of the metallic inclosing-tube andthe screws for holding said tube in the body or frame. Fig. 4t is a longitudinal view ofthe glass spirit-bulb. Fig; 5 is a side elevation ofthe body or frame ofthis improved spirit-level with the spirit-tube and inclosingtube removed. Fig. G is an end view of said body.
The body A of this improved spirit-level is provided with upright heads A A near its opposite ends, saidheads having screw-threaded openings 'a through them. A metallic tube, l5, countersunk` at its opposite ends, is support-ed between said heads and held in position by the screws C C, which pass through the holes a in said heads, and are tapered at their inner ends to fit the countersunk ends ofthe tube and center the latter. This metallic inclosing-tube is provided with a slot, c, at or near its center on one side. A glass spiritbulb, D, is inserted in the metallic tube B, and can be seen through the slot in the latter. When the spirit-level is in use, the metallic tube B is in the position shown in Figs l and 2, With its slotted face uppermost to expose the bulb. When the level is put away,the inclosiug-tube B is rotated a half-revolution on the screws C C, whereby its slotted face is covered by .the body of the structure and the glass bulb protected.
The parts described constitute aprotected Vspiritlevel, which is very simple in its construction and not liable to get out of true, as the tapering screws, in connection with countersunkQendahave a constant tendency to preserve the proper alignment of the bulb.
I claim- A protected spirit-level comprising the body A, having the perforated screw-threaded heads A, the slotted rotary inclosing-tube B, having countersunk ends, the glass bulb D Within said inclosing-tube, and the screws C C, passing through said screw-threaded heads and having tapered inner ends which engage the countersunk ends of the inclosingtube, substantially as described.
CHARLES BENJAMIN y LONG. W'itnesses:
CHARLEs MoEN RICE, ROBERT ADEN KNIGHT.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US372921A true US372921A (en) | 1887-11-08 |
Family
ID=2441932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US372921D Expired - Lifetime US372921A (en) | Spirit-level |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US372921A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2579893A (en) * | 1949-09-21 | 1951-12-25 | Charles S Wright | Combination level and angle indicator for cylindrical members |
| US2655733A (en) * | 1952-03-13 | 1953-10-20 | Francisco G Costa | Handsaw level |
| US2919491A (en) * | 1957-12-03 | 1960-01-05 | George H Darrell | Level indicating putter |
-
0
- US US372921D patent/US372921A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2579893A (en) * | 1949-09-21 | 1951-12-25 | Charles S Wright | Combination level and angle indicator for cylindrical members |
| US2655733A (en) * | 1952-03-13 | 1953-10-20 | Francisco G Costa | Handsaw level |
| US2919491A (en) * | 1957-12-03 | 1960-01-05 | George H Darrell | Level indicating putter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US312266A (en) | William gueley | |
| US372921A (en) | Spirit-level | |
| US761601A (en) | Hat-crease retainer. | |
| US686360A (en) | Extensible level. | |
| US1033742A (en) | Square. | |
| US207844A (en) | Improvement in spectacles | |
| US191389A (en) | Improvement in spirit-levels | |
| US199105A (en) | Improvement in billiard-bridges | |
| US475390A (en) | Silas c | |
| US1066013A (en) | Level. | |
| US143248A (en) | Improvement in walking-canes | |
| US711880A (en) | Attachment for spirit-levels. | |
| US418256A (en) | Bevel | |
| US586268A (en) | Mustache-protector | |
| US1278707A (en) | Violin. | |
| US1292086A (en) | Drawing instrument. | |
| US169290A (en) | Improvement in connecting spirit-levels and straight-edges | |
| US754976A (en) | Towel or other rack. | |
| US703678A (en) | Spirit-level. | |
| US567832A (en) | john p | |
| USD31020S (en) | Design for a kaleidoscope | |
| US298382A (en) | Fountain-pen | |
| US140912A (en) | Improvement in eye-glasses | |
| US93785A (en) | Improvement in pepper-casters | |
| US456950A (en) | Beam end and protector |