SU832308A1 - Instrument for measuring linear dimensions - Google Patents

Description

one

The invention relates to the construction industry and can be used to measure and mark the axes of building structures.

A device for measuring linear dimensions is known, comprising two intersecting bars with a hinge connecting them at mid-length points, a ruler with divisions, secured near zero scale at the end of one of the bars with the possibility of turning

The known device allows only to measure the width of the control object and cannot move along it, which limits its technological capabilities.

The aim of the invention is the expansion of technological capabilities.

This goal is achieved by the fact that the device for measuring linear dimensions is supplied with four rollers attached to the ends of the slats, with a spring connecting the same shoulders of the slats, and with a marker rigidly fixed in the center of the hinge.

The drawing shows a diagram of an instrument for measuring linear dimensions.

The device contains two cross bars 1 and 2 with rollers 3 at the ends, a hinge 4 connecting the plan-. Keys 1 and 2 at medium-length points, marker 5, rigidly fixed in the center of the hinge 4, extension spring 6 connecting the shoulders of the same name

1 and 2, a ruler 7 with divisions, fixed near the zero division of the scale

0 at the end of one of the bars can be rotated, a readout indicator 8 printed on the corresponding roller 3 for measuring the width of the test object.

five

The device works as follows.

In the initial state of the strap 1 and

2 under the action of the spring 6 are reduced

0 between each other, and the reading index 8 is located opposite the zero division of the ruler 7 scale.

When measuring, push the strips 1 and 2 apart and impose them on: the measured e5 part. Under the action of the spring 6, the rollers 3 are pressed against the surface of the part, and the marker 5 is set along the axis of symmetry of the part. The device is moved along. Details and marker 5

0 applies the centerline to the part, and

on a ruler 7 scale, the width of the part is counted.

Claims (1)

Invention Formula An instrument for measuring linear dimensions, containing two intersecting strips with a hinge connecting them at medium-length points, a ruler with divisions fixed near the zero division of the scale at the end of one of the strips can be rotated, characterized in that capabilities, it is equipped with four rollers attached to the ends of the slats, a spring connecting the shoulders of the same name of the slats, and a marker rigidly fixed in the center of the hinge. Sources of information taken into account in the examination of Q 1. USSR Copyright Certificate No. 118985, cl. G 01 B 5/02, 1969 dprotiotype).