The German word 'Zollstock' means folding rule
," Schneider says, pointing out that it's an uncanny match for their firm's focus on precision.
Extension rules are used to measure closed-in areas such as doorways and window frames where a regular folding rule will not work.
Folding rules usually consist of 6" to 8" hardwood lengths connected by spring joints, but are available in steel and aluminum as well.
Like a folding rule
, it opens to set eight tresses.
The period from 1884 to 1909 saw the slide rule change from the folding rule
used by carpenters to the slide rule of the engineering profession.
You'll also need a level, a steel or folding rule
, a putty knife, and clean rags.
The zigzag-style folding rule
was invented in 1900.
and tape measure, manually measuring equipment etc.
By 1939, the line expanded to include awls, bevels, wood and metal chisels, a crowbar, drill bits and bit extensions, files, a hatchet, an ice pick, nail sets, pliers, punches, saw sets, tape measures, tin snips, vises, wrenches, zigzag folding rules
and, by 1952, even a wedge vise.
NORDIC BUSINESS REPORT-27 October 2003-Hultafors AB strengthens within folding rules
, acquires Praesident Messwerkzeugfabrik GmbH(C)1994-2003 M2 COMMUNICATIONS LTD http://www.
What folding rules
do proteins follow to transform a certain sequence into a specific shape?
signaling (ribbons, tags, signs & discs) markings (crayons, pencils, markers, chalk lines) controls (levels, rulers, set squares , a son shot, foot wings, lasers) measures (tape measures, folding rules
, odometers, etc.