• Made of Aluminium/brass.
• Size 100mm, 125 mm, 150 mm dia.
• Complete in Case with Aluminium Telescopic/Rigid/Wooden Tripod.
• Aluminium circle consist of a needle graduated to 30min (0.5) graduations.
• Painted with water proof paints.
• Carrying cases are made of Fibre with carrying straps. Least count 30'.
The Plane Table Surveying Instruments include standard accessories like Trough Compass, Spirit level, Canvas cover, Plumbing Fork etc., and is also with a fitted tripod.
Uses of Plane Table in Engineering Surveys:
• Maps preparation
• Recording topography
Accessories included in Plane Table Surveying Instruments:
• Plane Table Board 750 x 600 mm, thickness 22mm & 16mm
• Carrying Bag for Board
• Teak wood Polished Stand
• Stand Rigid Brass Head & Plate,
• Magnet Trough compass brass
• Spirit Level brass
• Sight van 24"
• Plumbing Fork
• Plumb Bob
Cylindrical brass sextant in leather case. The sextand has pull out eyepieces, silvered scale and vernier magnifier on a hinged arm.
The brass cover screws onto the base as a handle.
The leather case is embossed with a flower on both sides.
The case has an attached cover which fastens with a strap.
The inside of the case is lined with purple velvet like material.
Maker's mark on sextand, embossed stamp on case.
The Hand Level is a small, economical level for use with preliminary surveys to determine traveller way or cable way steel work elevations and other feasibility type site reconnaissance work.
The Abney Level is very similar to a clinometer in that it is used to measure the value of a slope by means of arc measure and grade percentage.
Specification of Abney Level
• Used to determine slope angle, tree heights etc
• Graduated 0-+/-90 degrees, 0-+/-100% on a stationary arc
• Vernier reads to 10
• Scale pointer incorporates friction thumb lock
• Includes carry case
The Cross-Staff was used at sea from the beginning of the 16th century until the first half of the 18th century.
It was used to measure the sun's altitude, especially at the meridian passage. With the knowledge of the sun's declination, the mariner could then obtain his latitude.
The staff is original, with the inscription.
The cross pieces are replicas. Different cross pieces were used depending on the altitude.
A different scale is on each side of the staff.
We offer Brunton Compass (Geological Compass) which is available in a leather or wooden case.
This compass differs from modern compasses, as it utilizes magnetic induction damping rather than fluid to dampen needle oscillation.
It is widely used by geologists and surveyors to make accurate degree and angle.
• The levelling staff of sturdy design that meets the requirements for intensive field work.
• The staff material should be one of the following: teak, cypress, kail, aimi, champ, hollock or aluminium alloy.
• If timber is used as staff material, then it has well seasoned, sawn in radial direction and free of defects.
• The staff is telescopic, comprising three sections without any joint in length.
• The top plate made of aluminium, anodised black.
• Length 4 m
Accessories
• Circular bubble sensitivity of 25 minutes per 2 mm run.
• Carrying case canvas.
• Plummet fittings for test and adjustment of bubble.
Reviews
There are no reviews yet.