The large, independently moving board surfaces and the integrated projection screens are
particularly suitable for lecture theaters, educational centers and large auditoriums.
Writing surfaces in green glass, green steel and white steel
The glass writing surfaces ensure particularly easy chalking/erasing while the steel
surface has the additional facility to accept magnetic aids. Drymarker pens are used on
the white surfaces.
Projection screens for all requirements
Numerous combinations are possible. 4 examples shown are as follows: (1) two screens next
to each other, one tilting to 20°, (2) a fixed mounted or tilting stretched screen
(this has the screen material tensioned over a steel frame), (3) a single screen, roller
type, mounted in front of the boards. (4) A side mounted screen with tilt/swivel facility
for OHP use.
Safety conscious styling Smoothly rounded corners and edges ensure a high degree of safety. Every detail even down to the chalk shelf and sturdy aluminum
cleaner holder are of matching design.
COLUMN MOUNTED BOARDS
1. Columns:
Aluminum extrusion with integrated guide flanges for board runners, which are designed to
carry the complete load. Provided with brackets for permanent anchoring to the floor, wall
or ceiling. Single columns expandable into double or triple units. Columns to be separate
units to allow for ease of maintenance. System shall have no horizontal cross members
which leaves rear wall free of obstructions. This extra space can be utilized for larger
rear or front projection screen.
The writing surfaces shall attach to the board runners, which slide vertically within the
guide flanges and shall be balanced by adjustable counterweights running inside the
columns. A free and quiet run to be guaranteed by pulleys provided with ball bearings.
Rattling or scratching noises from counterweights inside the columns shall be eliminated
by installation of Teflon caps to top and bottom of counterweights.
Counterweights are to be square, hollow tubes which allow for on-site fine adjustment by
adding or removing weight. Counterweights and board runners shall be connected by a heavy
duty aircraft type steel cable. Each board runner (two per board) shall be equipped with
four (4) polymid slide-guide free-running rollers to guarantee a smooth, noiseless and
non-binding board movement. The board runner will be installed in a concealed manner to
avoid possibilities of injuries while in use. Sliding motion of boards shall be softly
cushioned at upper and lower limits of vertical travel by rubber disc and spring. To avoid
injury, front surfaces and exposed edges of columns shall be well rounded with a minimum
radius of five mm (0.2 inches). Inner splines will be provided to allow for attachment of,
at any point, various accessories without causing movement or flexing of column. Writing
surface color shall be white to reduce glare. Papers and drawings can be attached
with magnets or picture clamps.
2. Writing Surfaces: Panel structure shall be as follows:
Sandwich panel of 1-1/2 ± thickness, consisting of honeycomb core, with top layer of
0.11" dense chipboard on front and reverse side to provide a rigid, even and
warp-free support structure for the porcelain steel and chalk writing surfaces which are
to be directly bonded to the front side of the sandwich panel. Reverse side of the panel
shall be provided with a backer sheet of corrosion free steel to achieve a symmetrical,
warp-free build-up. Regardless of writing surface size, panels shall be completely free
from buckling or bending.
a. Chalk boards - shall be a minimum of twenty-eight gauge special quality steel with
porcelain enamel coating on front and reverse side. Coating to be a high fired type
porcelain with a minimum of 0.003" thickness applied at over 1400 degrees F. The
writing surface is to be glare free, non-glossy and of a highly uniform texture to achieve
superior writing ability.
Writing surface color shall be black for definition and contrast upon use of white or
colored chalk. Reflectance factor shall be 17.5% with plus or minus 5% maximum tolerance
and shall not vary as the result of wear or use.
Papers can be attached with magnets or picture clamps.
b. Drymarker Boards - shall be a minimum of twenty-eight gauge special quality steel, with
porcelain enamel coating on front and reverse side. Coating (color to be selected by
architect) to be high fired type porcelain with minimum 0.003" thickness applied at
over 1500 degrees F. Writing surface shall be glossy, smooth, free from hairline cracks,
stain and scratch resistant for easy writing with drymarker pens. Easy cleaning shall be
possible with clean felt eraser or clean cloth. Only periodic maintenance cleaning, using
paper towels or lint free cloths moistened with water or non-oily mild detergent will be
required to prevent build-up of residue.
Writing surface color shall be white to reduce glare. Papers and drawings can be
attached with magnets or picture clamps.
c. Trim Profiles - shall be aluminum extrusion and surround entire board, except as noted
at static boards. Extrusion shall be bonded directly to steel writing surface to prevent
moisture intrusion. To avoid injuries, all trim profile edges must be provided with a
radius of three mm (0.12") minimum. Corner pieces shall have a minimum radius of
twelve mm (1.2"). Trim profile finish shall be a powder coating, color as selected by
architect. All surrounding trim profile shall accept picture clamps, hooks, flip chart
holder, chalk or pen rail and handles in a temporary or permanent fashion.
Accessories:
The following accessories shall be available as options, or supplied as indicated on
contract documents:
Optional equipment: Projection screens tilting to 20°, swiveling to 30°, mounted on the
left or right-hand side of the columns, matte white melamine resin coated, with grey-white
stove-enameled aluminum section surround and grey-white plastic corners.
Sizes 130 x 130 cm, 150 x 150 cm.
Projection screens wall mounted between the columns, fixed or with 20°
tilting via a crank mechanism, constructed as tilt swivel screens.
Sizes 175 x 190 cm, 175 x 240 cm.
Projection screens wall mounted between the columns, fixed or 20° tilting
via a crank mechanism, anti-static screen material stretch-laced on to a stove-enameled
tubular steel frame.
Sizes 175 x 290 cm, 175 x 390 cm.
