US1406150A - Surveyor's instrument and range finder - Google Patents

Description

WITH/588% 7 JOHN 6555 mm, W MM J. C ESERANI. SURVEYORS INSTRUMENT AND RANGE FINDER.

APPLICATION FILED NOV. 8; 1919.

1 ,406,150. v Patented Feb. 7, 1922.

2 SHEETS-SHEET l- INVENTOR mom/m I. CESERANI.

SURVEYOR'S INSTRUMENT AND RANGE FINDER.

APPLICATION FILED NOV- 8,19l9.

Patented Feb. 7, 1922.

2 SHEETS-SHEET 2.

INVENTOR WITNESSES JOHN CEsE/M A TTORNEYS JOHN cEsEnA-Ni, 0F atri m, -HONTANA, lemme: oN-E-mmn 'm GNOME WRIGH-TSON, -.&ND '-ONE-THIRD MONTANA.

- Spebi ficatio'n or Letters latent.

TO FRANK W. CARPINO, BOTH OF BUTTE, i

-Patented Feb. 7,1 19%;

Ap'pIiciuon "fir d IN vember 831919. semi No. 336,620.

I To till "whom "ii ma concern Be it knownthat LUOHN'CESERANn a citizen (if the-United States, residin at Butt in the county of Silverbowan State of Montana, have "invented new and useful Im.

I I groveinerits-in surveyors" instruments and" II Findei's, of "which the following is a spe 'cificatioh.

my i y'entioh rlates' tv'irnpre efiirits iii surieyors instruments "an'dfrange finders.

A impertant obj ee'tofthe invention is to mviae apparatus-b'1E the "above mentioned character whichfiseiitremely simple inbon s't'ruct n, ieasy' to'e erate withoutthe employ "enter com lex mathematical *ru'les.

I proi ide f'apparatus df'th-e abd'veinentioned characte'n fwhich' {is free ham-errors in t e results of it jdp'er'ation, which errors weul'd be "caused iinp'rdper of the parts thereof. II I I A further object of the'i nteiitionis to providea plumb level attachment 'whi chserves to determine easily and ab'c ui'ately "the amount of elevation or 'frdepres'sfion mm the horizontal, f any stated o i'nt.

Other "objects a d' a'dv a'rflb afges of the invention will be 'apparentidur'n'g the course of the following 'd'escritidh. I

' YIn'the accompanying" rawings' formin'g'a part of this specification, and in whiehlike numerals "are employed to 'designatelike Figure '1 is la ".planrviewof body'lngr'ny invention,

F1gure'2 s 'aperspective vie'wr'of an ani gularly 'adjusitable support or "base,

I omitted; and,

' Figure '3 is aside elevation of the appa ratus showin the telescopes ang'ularly ar -f ranged,

' f Figure 4 1s a "similar View in angle to 'the showing Figure 3, the'tjele;

COP IPET L v A Figure 5 is a perspective view of the lower base and A associated "elements, 'par'ts b eing Figure 6 is a similar tiietv ofthe adjust able telescope support '1 or bracket.

thedr'a'wing's, wherein f r the urpose of illustrationjisshown a preferred embodimentbf invention, the numeral 10 desigapparatus emin the formof a'fl at'bl atel I Thi s plat'e is provided upon itsupper surface with 'fo'iir points A, B, (Land D, providingflinesarranged at a right angle to 'eachbther and forming a square. For the m g os es 'of "illiis tration, it will be assumed at the line A-'-B is 12 inches in length, but it is obvious that it may be in an muiep e er-iiaorin ny Other suitabl e 'l'en h, 1

The humeralfll I I stand QT m nwhich is rigidlysecured'to the main base 10 and'i'siivertical. The stand orsupport 11 is arranged-inan line so thatits central vertical longitudinalaxis coincides with the line This station} ary :bracket is'provide d at it'supper' -edge with a sighting instrument or' telescope '12, rigidly secured thereto. 'Thjis telescope is parallel with 'thebase 10 an'd'has'its central vertical longitudinal axis coinciding with the line A-'B.c A

si'gnates support;

The numeral 13designates an npperfbase,

support or plate, which is angularly 'adjustable and is'parallel with the base 10, upon which it is slidablymountech Thebase"1 3 is preferably rectangular and, isbroirided at one "corner ;With an ap ert ured kn ickle'l4 pivotally receiving I centric with the po'nt A." This Ipivotal connection is such that the inner'edge of the base 13',"When the same is closed, isadaptedto contact with the side of the'sta'n'd 11. The edges 16 will then be at a right-angle to the standlli' i I Secured to the uppersuiface of the base 13 are guides 17, which are parallel with'the edges 16, and hence at a right angle tothe stand 11, when the base 13 is inthe closedw nosition. A carriage 18, is slidable' between theguides 17 and; an adjustable starifd'19 is rigidly secured to the carriage 18' and 'is Vetticallj arranged or per 'iendicularto theear riag'e 18. A sighting instrument or telescope 20fis rigidlylsec'ured toithe upperfendfofthe stand 19 in parallel relation to thebase l3 and having its longitudinal axis 'disposedat a right angle to thef edges' 116 or' parallel to siredfraction of an inch or othe'rsnitable unit of measurement (not shown), by which the telescope 20 may be set at any suitable unit of measurement, in order that the com puting of the distance of the object from the sight B, in the manner hereinafter described,

can be more accurately determined. The base 13 is provided at one corner with a fixed point 21, to coact with a scale 22, preferably graduated in fractions of an inch,

graduated in any'slnaller fraction desired, in order to insure greater accuracy, and. this scale measures the distance'in a straight line from the point B to the point 21. Of course, this scale may be graduated in any other suitable system of measurement, to determine the amount of offset from the point of measurement atB to the point 21.

As more clearl shown in Figure 3, the

at 25. This'plumb level has its free end operatingin proximity to a scale 26, which 7 maybe graduated in inches and sixteenths thereof, or many smaller fraction of an inch desired, in order to insure greater accuracy. For the purpose of illustration it is assumed that the plumb level is set upon a twelve.

13 is. arranged at the point on the scale 22 40 which is of an inch between the point r B and the point .21, and that the telescope 20 is arranged at the one-inch point of the scale 172 It is now desired to determine the-distance between the point B and. the

point of intersection of the sight lines through. the telescopes; As the line A B is 12 inches long, the distance is computed. by multiplying '12 by 16, which equals 192 inches. or 16 feet between the object and the point B. If the telescope 20 were shifted to the two-inch point uponthe scale 17 this distance wbuld be 32 feet, and so on. It is thus apparent that the instrument is siminchesin length, whereby the distance in feet between the object and the point B may be obtained by .multiplying the oflset in incheswith the length through which the telescope 20 moves, in inches.

:It isobvious that this operation-is given solely for the purp se of illustrationy that the instrument may be constructed in vanous sizes and adapted to measure various distances, as may be found advantasuch assixteenths of an inch, but can be standll is provi ed with asegmental open mg 23, receiving a plumb level 24;, pivoted object in the distance, which, occurs at the plified in operation as the line A-B is 12- I and connected therewith and having its longitudinal axis-coinciding with said line, an upper base having a pivot which is concentric with one end of said line,.said upper base having edges thereof adapted to be arranged at a right angleto the longitudinal axis ofthe sighting instrument when in the closed position and at an an le thereto when in the open position, the rstnamed base being provided with a scale to indicate the extent of movement of the upper base from the other end of the line, said scale.

being in fractions ofthe ,unit of measure'of said lineand coacting with a portlon of sald upper base, a carriage arranged upon the upperbase, guide means for the carriage extendingparallel with the transverse axis of the upper base, and asighting instrument connected. with the carriage and. having its longitudinal axis coinciding with the longitudmal axis of. the carriage, said gu1de means having a scale for indicating the extent of movement of the carriage.

2.. In an instrument of the character de-' scribed, a. ,base provided with spaced points forming a line which is 12 inches in length,

a sighting instrument, arrangedabove the base and connected therewith and having its longitudinal axis coinciding with said line, an upper base'having a pivot which is concentric with one endof said line, said upper base having its transverse axis adapted to be 'arranged at a rightv angle to the longie tu'dinal axis of the sighting instrument when theupper base is in the closed position, the lower base; being provided. with a scale at the other end ofsaid'line, such scalebeing 7, in. the fraction ofi inches and cooperating," with the inner. edge of the upper base to measure distance between it and such. end, the upper base bemg provided with guide means a-rrangedparallel to the transverse axls thereof, said guide means having a scale in inches and fractions thereof, a carriage slidably engaging the .guide means,

and a sighting instrument connected with the carriage and having its longitudinal axis disposed at a right angle to the transverse axis of the upperbase,

3; "In an instrumentof the character de-;; scribed, a base, a sighting'instrument connected otherewith, an upper; base arranged upon the firstfnamed base and adapted to be 'angularly adjusted with relation to sighting instrument, and a second sighting instrument carried by the upper base and adapted to be shifted transversely thereof.

4. In an instrument of the character described, 11. base, a stand secured to the base and provided with a segmental opening and having a scale near thecurved portion of the opening, a sighting instrument carried by the stand, an upper 'base pivoted to the lower base to be angularly arranged with relation to said stand, a carriage adjustably mounted upon the upper base to be shifted transversely thereof, and a second sighting instrument secured to the carriage, and means suspended upon the stand and operating within the scale opening to determine the deviation. from the horizontal to permit of correction of the error of the findings of the sighting instruments due to the deviations from the horizontal.

JOHN CESERANI.

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