US79266A - sibley - Google Patents
sibley Download PDFInfo
- Publication number
- US79266A US79266A US79266DA US79266A US 79266 A US79266 A US 79266A US 79266D A US79266D A US 79266DA US 79266 A US79266 A US 79266A
- Authority
- US
- United States
- Prior art keywords
- level
- frame
- epirit
- sibley
- pivot
- 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
- 241000733322 Platea Species 0.000 description 4
- UOCLRXFKRLRMKV-UHFFFAOYSA-N 2-[bis(2-nitrooxyethyl)amino]ethyl nitrate;phosphoric acid Chemical compound OP(O)(O)=O.OP(O)(O)=O.[O-][N+](=O)OCCN(CCO[N+]([O-])=O)CCO[N+]([O-])=O UOCLRXFKRLRMKV-UHFFFAOYSA-N 0.000 description 2
- 241000223221 Fusarium oxysporum Species 0.000 description 2
- SHGAZHPCJJPHSC-NUEINMDLSA-N Isotretinoin Chemical compound OC(=O)C=C(C)/C=C/C=C(C)C=CC1=C(C)CCCC1(C)C SHGAZHPCJJPHSC-NUEINMDLSA-N 0.000 description 2
- 229960005280 Isotretinoin Drugs 0.000 description 2
- 241000124008 Mammalia Species 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/002—Active optical surveying means
- G01C15/004—Reference lines, planes or sectors
Definitions
- a repreeenta a circular diah or here, made of wood or metal. 0n the aide: are marked the anglca of degrees.
- the centre of thin horizontal diah ia a hollow pivot, 13, and in the centre of a cnrpontcr'e or tnaaon'e ordinary apiritdevei I place a metallic eoeltet, C, to operate on the pivot B.
- I attach aqaare metallic platea D D, with two groovoe, E, in the top of the platee.
- I ll two aighta-one with the pin-hole eye-eight G, and the other, alight, H, with two wire eroea-liaee, one a perpendicular and the other a horizontal line.
- ll'he haaea of theee alghte G and II have flangee on their lower edger, to ac to alide in the groovee E, in the platen D D, to alwaya maintain their proper poaitiona. They are then firmly l'aatened, by a'erewe J J, to the epirit-level frame K.
- Figure 8 ahowa the eh'ape and eonatrnctien oi the aighte, and the manner in which they are attached to the
Description
' prong... fiatrnt Qffiee.
I J. D. .SIBIIEY, 0.! HIDDLE TOWN, GONNEOTIGU'L' ZettmPeteat m. mammal. as, me.
. flame]: nitmt Ilia 3mm wilt; will saver.
I re am. waou 11' IA! 'eozvernm I Do it hnow'n that I, J. D. Sum, of Middletown, coanty of Middleacx, and State of Connecticut, have iaventedaa Improved Spirit-Level; and I hereby declare the following to be an exact deacription thereof,
reference bell had to the accompanying drawinge, and to the lottora oi reference marlred thereon, mahin a pert of thie apecileatien, in which- Figure 1 repreaeata e perapeetive view oi the inatrament.
Figure 8, the pivotvapon which it operatee. I
level-frame.
'lilare trepreeeate a aide view oi-the level. I The nature of the invention eonaiata in the movable. eigbte attached to tho. enda'oi any epirit-level -i'ramc,
" with a central pivot and circular diah for the level. to revolve upon, the pivot being hollow, (or the purpoee oi I eaepeeding a plummet-line and plamb attached. I
A repreeenta a circular diah or here, made of wood or metal. 0n the aide: are marked the anglca of degrees. In the centre of thin horizontal diah ia a hollow pivot, 13, and in the centre of a cnrpontcr'e or tnaaon'e ordinary apiritdevei I place a metallic eoeltet, C, to operate on the pivot B. I
On each and of the eplrit-level frame I attach aqaare metallic platea D D, with two groovoe, E, in the top of the platee. Upon thoae platea D D, I ll: two aighta-one with the pin-hole eye-eight G, and the other, alight, H, with two wire eroea-liaee, one a perpendicular and the other a horizontal line.
ll'he haaea of theee alghte G and II have flangee on their lower edger, to ac to alide in the groovee E, in the platen D D, to alwaya maintain their proper poaitiona. They are then firmly l'aatened, by a'erewe J J, to the epirit-level frame K.
On the upper aide, and at the centre oi the apirit-level frame K, iethe imnmn" on-1...: tube 1...
I at rl ht aelea with the epirit-level L ie the epirit-level tube M, eomlnoniy called the perpendicular level, a I a I te earpenterfler maaeaa' ordinary ieveia. I The red llnea acroaa the dick A ahow how the apirit-lcvel frame K can be revolved at any angle from the peiat of eight.
The advantage of my invention ie, that more accurate levelling can be executed than heretofore, with a carpeater'e erdiaary level, for ehort dietaneea, and at a very trifling eapenae. There aighte, being movable, can be attached teeny earpentere ordinary spirit-level, and in combination with the aoelret 0, pi'vot B, and circular dick or heriaentel plate A, al'ord a very cheap and uaei'ul inetrument for carpentore' and meeona' uses, and to timple in conatrnction that the yonngeat apprentice ca n acoompliah the most accurate levelling.
What I claim a my invention,'anddeaire to accure by Lcttc ra'Pat ent, ia- I l'he combination of the revolving aigbted level with the dial: A, when arranged and operating as herein deeerihed, ead for the parpeaee eet i'ortin. I J. D. 8
Wltaeaeeet War. 11. Anna, Kroner. SIIOII.
Figure 8 ahowa the eh'ape and eonatrnctien oi the aighte, and the manner in which they are attached to the
Publications (1)
Publication Number | Publication Date |
---|---|
US79266A true US79266A (en) | 1868-06-23 |
Family
ID=2148764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US79266D Expired - Lifetime US79266A (en) | sibley |
Country Status (1)
Country | Link |
---|---|
US (1) | US79266A (en) |
-
0
- US US79266D patent/US79266A/en not_active Expired - Lifetime
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