SU10297A1 - Magnifier for reading on the scale - Google Patents

Magnifier for reading on the scale

Info

Publication number
SU10297A1
SU10297A1 SU30814A SU30814A SU10297A1 SU 10297 A1 SU10297 A1 SU 10297A1 SU 30814 A SU30814 A SU 30814A SU 30814 A SU30814 A SU 30814A SU 10297 A1 SU10297 A1 SU 10297A1
Authority
SU
USSR - Soviet Union
Prior art keywords
scale
reading
magnifier
magnifying glass
glass
Prior art date
Application number
SU30814A
Other languages
Russian (ru)
Inventor
М.И. Родакевич
Original Assignee
М.И. Родакевич
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by М.И. Родакевич filed Critical М.И. Родакевич
Priority to SU30814A priority Critical patent/SU10297A1/en
Application granted granted Critical
Publication of SU10297A1 publication Critical patent/SU10297A1/en

Links

Landscapes

  • Lenses (AREA)

Description

В цел х,улучшени  видимости де .лений шкалы, покрываемых кра ми .лупы, последней придана форма шарового сегмента, переход щего по плавной вогнутой поверхности в плоскость стекла, служащего основанием лупы.In order to improve the visibility of the scale deformations covered by the edges of the loop, the latter is shaped into a spherical segment that passes along a smooth concave surface into the plane of the glass that serves as the base of a magnifying glass.

Изображенна  на схематическом чертеже лупа служит дл  отсчета по шкалам с очень мелкими делени ми например, логарифмической линейки. Выпукла  форма лупы по кра м переходит в вогнутую, при чем последн   вогнута  поверхность постепенно лереходитв плоскость, параллельнуюThe magnifying glass depicted in the schematic drawing is used to read on scales with very small divisions, for example, a slide rule. The shape of a magnifying glass is convex at the edges and becomes concave, with the latter concave surface gradually leading to a plane parallel to

задней поверхности ,лупы, образу  кра  смотрового стеклышка, например , логарифмическЪй линейки.the back surface of a magnifying glass to form the edge of the sight glass, for example, a slide rule.

Предмет патента.The subject of the patent.

Лупа дл  отсчета по шкале, например , логарифмической счетной . линейки , характеризующа с  , что в средней своей части она имеет выпуклую форму, котора  по кра м переходит в вогнутую с тем, чтобы затем постепенно перейти в плоскость , параллельную задней плоской поверхности лупы.A magnifying glass for reading on a scale, for example, a logarithmic counter. ruler, characterized with that in its middle part it has a convex shape, which at the edges turns into a concave so that then gradually go into a plane parallel to the rear flat surface of the magnifying glass.

SU30814A 1928-08-01 1928-08-01 Magnifier for reading on the scale SU10297A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU30814A SU10297A1 (en) 1928-08-01 1928-08-01 Magnifier for reading on the scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU30814A SU10297A1 (en) 1928-08-01 1928-08-01 Magnifier for reading on the scale

Publications (1)

Publication Number Publication Date
SU10297A1 true SU10297A1 (en) 1929-06-29

Family

ID=48332204

Family Applications (1)

Application Number Title Priority Date Filing Date
SU30814A SU10297A1 (en) 1928-08-01 1928-08-01 Magnifier for reading on the scale

Country Status (1)

Country Link
SU (1) SU10297A1 (en)

Similar Documents

Publication Publication Date Title
SU10297A1 (en) Magnifier for reading on the scale
US2392461A (en) Hardness calculating device
GB316929A (en) Improvements in and relating to drawing apparatus
US2073281A (en) Draftsman's plotter
US2569202A (en) Slide rule
SU45075A1 (en) Altimeter
GB257127A (en) Improvements in and relating to refractometers
GB266226A (en) Improvements in and relating to optical scale reading devices
SU30480A1 (en) Slide rule
US3122314A (en) Scale-type calculating device
SU40054A1 (en) Logarithmic counter
Shisha A LOGARITHMIC AREA-COMPUTING SCALE
SU91349A2 (en) Ruler to measure the area of the skins
GB317903A (en) Improvements in line drawing or ruling appliances
GB357925A (en) Improvements in drawing and like squares
SU26108A1 (en) Counting line
GB512680A (en) Improvements in or relating to rules
GB507817A (en) Improvements in computing devices for measuring areas and/or volumes
SU27204A1 (en) Device for determining contour lines on the plan
SU60744A1 (en) Device for counting angles in goniometers
SU24511A1 (en) A device for calculating the areas of triangles on their three sides
GB214919A (en) An improved apparatus for calculating percentages
SU122886A1 (en) The method of determining heights
GB275445A (en) Improvements in drawing apparatus
GB510220A (en) Combined protractor and calculating device for use in navigational problems