DURALINE #1611, 1613, 1615, 1617 STRAIGHT CHAIRS
FRAME:
Two 18-gauge, cold-rolled-steel tubes are shaped to form the "U" shape of legs. Diameters of the legs vary according to the seat heights: 7/8" diameter used on 11-½", and 13-½"; 1" diameter used on 15-½"; and 1-1/8" diameter used on 17-½". Stacking of chairs is possible within like sizes. The legs are then sigma welded to two side brackets of 14-gauge, die-formed steel supporting the two, raised ribbed surfaces of the shell. All legs are swaged to 5/8" diameter. The 1-1/4" base diameter of the glides are of a special hardened steel, rubber-mounted, and are fully nickel plated with a nylon bottom surface.
DURALINE SHELLS: One-piece, contoured, flexible, injection-molded shell from special, high-density, high-impact-polypropylene plastic with anti-stat additive and textured face surface for proper body support. The underside of shell is molded to have a ribbed pattern to increase strength where the greatest weight and pressure are applied, and the turned flanges add additional durability.
The shell attaches to the seat attachment bracket by the two, raised ribbed surfaces on the underside utilizing four, 3/16" diameter, high-tensile-steel, pop rivets (chairs) or semi-tubular rivets on combos and chair-desks.
DURALINE GLIDES: Are 1-1/4" diameter platform style, have a raised-radius inner-dome to ensure glide alignment. The use of a ferrule or collar on the glide is unacceptable. The glide will be rubber cushioned, 1-1/4" diameter, self-leveling and fully nickel plated. The attachment will incorporate an inside gripper ring, which will positively secure the glide to the inside of the leg. The glide base will be nylon, steel or non-skid composite material.
METAL FINISHING
POWDER COAT
Chardark colored metal components are thoroughly cleaned by electronically-controlled, continuous-spray-wash systems then precision coated with an optimum-milligram, paint-bond coating of iron phosphate followed by a rust-inhibiting, chromate coating and a final coat of a special, high-temperature-baking epoxy powder paint.
CHROME
Chrome metal components are first cleaned with an alkaline solution then electroplated with bright nickel followed by an electroplated layer of hexavalent chrome. Hexavalent chrome is hard and resists scratching and corrosion and will last longer than Trivalent chrome.
Optional Seat and BackPad: Shell is also available with an upholstered, two-piece pad consisting of ¾" foam over a molded hardboard liner with six "T" nuts inserted in the pad liner to facilitate easy application and removal. The seat pad measures 13" x 14-3/8", and back pad measures 6-½" x 12-13/32". Both pads conform exactly to the shape of the shell. Machine screws are used for attaching the pads through the shell into the "T" nuts. Upholstery is available in coordinating, marquesa lana polyolefin sherpas and shires only in the 17-1/2" seat height.
DURALINE #1603, 1605, 1607 SLED BASE CHAIRS
FRAME: A one piece, 16-gauge, cold-rolled-steel tube is shaped to form the triangular sled frame with 8 symmetrical bends. The tubing diameter of the sled frame is 3/4”, on 13-1/2", 15-1/2 and 17-1/2" chairs. Stacking of chairs is possible within like sizes. The tube is mig welded to form a solid steel frame which in turn is mig welded to two side brackets of 14-gauge, die-formed steel supporting the two, raised ribbed surfaces of the shell.
DESK TOP: High-pressure plastic laminate bonded to 9/16" resincore with paper backer sheet. Edges are shaped and clear coated. Desktops are available in winchester walnut, light indian teak, and golden oak plastic laminate. The desktop provides an adequate working area and is mounted at a 0-degree slope for reading and writing comfort and is only available in a right hand unit. Dimension of the desktop is 20-½" x 26- ½".
DURALINE #1657 COMBO CHAIR & DESK
DESK TOP: High-pressure plastic laminate bonded to 9/16" resincore with paper backer sheet. Edges are shaped and clear coated. Desktops are available in Winchester Walnut, Light Indian Teak, and golden oak plastic laminate. The desktop provides an adequate working area for reading and writing comfort and is only available in a right hand unit. The writing surface is 18" x 24".
FRAME: The front leg tube is 1-1/8" diameter 16-gauge carbon-steel tube and forms the "U" shape of the front legs. The top support is 1-1/8" diameter, 14-gauge carbon-steel tube. One 1-1/8" diameter, 18-gauge carbon-steel tube forms the "U" shape of the back legs. Both the back legs and the top support are mig welded to two side brackets of 14-gauge die-formed steel supporting the two raised ribbed surfaces of the shell. All legs are swaged to 5/8" diameter. One ¾" diameter 14-gauge frame support tube is mig welded between right front and back leg and top support tubes. The 1-1/4" base diameter of the glides are of a special hardened steel, rubber-mounted and are fully nickel plated.
FRAME: Two 1-1/8" diameter, 18-gauge, carbon-steel tubes are shaped to form the "U" shape of the legs. The legs are then mig welded to two side brackets of 14-gauge, die-formed steel supporting the two, raised ribbed surfaces of the shell. All legs are swaged to 5/8" diameter. The seat height is 17-½" Casters are chrome plated and have a ball-bearing swivel and a 2" diameter, rubber wheel.
DURALINE #1677 CASTER ARM CHAIR
ARM RESTS: The arms are made of one continuous 1", 14-gauge carbon steel tube. The arm tube is welded to the seat frame on each side. The armrests are molded urethane padded armrests (black only) attached with hidden screws.
FRAME: Two, 1-1/8" diameter, 18-gauge, carbon steel tubes are shaped to form the "U" shape of the legs. The legs are then mig welded to two side brackets of 14-gauge, die-formed steel supporting the two, raised ribbed surfaces of the shell. All legs are swaged to 5/8" diameter. The seat height is 17-1/2". Casters are chrome plated and have a ball-bearing swivel and 2" diameter, rubber wheels.
DURALINE #1687 SLED BASE CHAIR DESK
DESK TOP: High-pressure plastic laminate bonded to 9/16" resincore with paper backer sheet. Edges are shaped and clear coated. Desktops are available in Winchester Walnut, Light Indian Teak, and Golden Oak plastic laminate. The desktop provides an adequate working area and is mounted at a 6-degree slope for reading and writing comfort and is only available in a right hand unit. Dimension of desk top 20-½" x 26 ½".
FRAME: The desktop is mounted on two, carbon-steel support tubes. The front support tube is a 1-1/8" diameter 12-gauge tube, and the back tube is a 1" diameter, 18-gauge tube. These support tubes are then mig welded to two side brackets of 14-gauge, die-formed steel supporting the two, raised ribbed surfaces of the shell. The tablet arm is mounted to the support tubes by 12, No. 10 x ½" sheet metal screws. The mounting clips are 16-gauge, die-formed steel.A one-piece 16-gauge, cold-rolled-steel tube is shaped to from the triangular sled frame. The tube is mig welded to itself to form a solid steel frame which in turn is mig welded to two side brackets of 14-gauge. Die-formed steel supporting the two, raised ribbed surfaces of the shell. The bookrack is 12" wide x 13-½" high x 6-3/8" deep and is made of #4 steel rods with #4 steel, cross rods resistance welded to form an integral unit. The bookrack is mig welded to the support tube and sled frames and has a 11-1/2" clearance from the underside of the seat; it opens toward the side of the unit.
DURALINE #1697 SLED BASE COMBO CHAIR AND DESK
DESK TOP: High-pressure plastic laminate bonded to 9/16" resincore with paper backer sheet. Edges are shaped and clear edge lacquered to complement desktop. Desktops are available in Winchester Walnut, Light Indian Teak, and Golden Oak plastic. The desktop provides an adequate working area for reading and writing comfort and is available in a right-hand or left-hand unit. The writing surface is 18" x 24".
FRAME:
Frame is 1-1/8" diameter, 12-gauge carbon-steel tubing mig welded to form an integral frame for mounting desktop. Desk top is mounted to frame utilizing four, 16-gauge, die-formed, carbon-steel clips each attached with two, No. 10 x ½" sheet metal screws. The frame is then mig welded to two side brackets of 14-gauge, die-formed steel between which two, 18-gauge, 1-1/8" diameter, steel cross support tubes support the two, raised ribbed surfaces of the shell. Die-formed steel supporting the two, raised ribbed surfaces of the shell. Bookrack is 14" wide x 10-3/16" high x 11-¾" deep and is made of #4 steel wire with #4 steel, cross rods resistance welded to form an integral unit. The bookrack is mig welded to the support tubes and back legs and has a 11-½" clearance from the underside of the seat that opens on either side of the unit.DURALINE #16PO PEDESTAL BASE CASTER CHAIR
FRAME: Pneumatic adjustable column assembly attached to the base and seat support. Seat supports will be two 1-1/8" 16-gauge tubes with end closures welded to two 14-gauge die formed seat brackets, punched for concealed rivets. The one-piece shell will be supported at the intersection of the seat and back with 16-gauge die formed saddle brace, welded to the seat assemble and riveted to the lower flanges of the shell to prevent excessive flexing of the back. The base will consist of fiberglass reinforced cast nylon milled to receive the adjustable column assemble and casters. The casters have a nylon twin wheel, self-locking safety caster.