RGT-20 & RGT-24

STEEL SECTIONAL DOORS

Model RGT-24 for normal installations and heavy duty model RGT-20 for added security. The semi-flush panel configuration of these doors creates a pleasing horizontal line effect. all doors are factory finished white from pre-painted steel.

CONSTRUCTION STANDARDS

1. Vertical reinforcing members are engaged to both the upper and lower horizontal meeting rails and to intermediate points of the panel to provide added rigidity. Heavy gauge galvanized steel intermediate hinges are bolted to the vertical members at all intermediate points.

2. Heavy duty inside side lock.

3. Weatherproof section joint. Top and bottom meeting rails are roll formed to provide a tongue and groove joint.

4. Vinyl astragal attached to the bottom rail in such a manner that it can be removed easily for replacement purposes. Return lips on all horizontal meeting rails eliminate sharp edges.

5. Adjustable top roller bracket, fabricated from heavy gauge galvanized steels, can be easily adjusted to provided positive seal at the header.

6. Roller hinges are fabricated from 14 gauge galvanized steel and are attached to the end stiles with machine screws. All rollers have continuous steel rim and ten 1/4" diameter harden ball bearings in case hardened inner and outer races.

7. Bottom corner bracket is fabricated from heavy gauge coated steel.  Bracket is attached to bottom rail and end stile to form a lifting cradle and also holds cable assembly securely at each side of door.

8. Extruded bottom angle is fastened to bottom edge to facilitate closing and also provide extra strength.

GENERAL: Sectional overhead doors as manufactured by R.G. Tombs Door Co. and as shown on plans. Door sections shall be constructed of (20) or (24)  gauge hot dip galvanized steel (G-90 galvanized coating).

Sections. Sections shall be roll formed from pre-painted steel to a two-inch thickness reinforcing ribs and six horizontal beads. Horizontal meeting rails shall provide a tongue & groove joit with a smooth rolled return lip inside. Bottom rail shall have heavy duty vinyl astragal as step plates attached so as to reinforce bottom hirizontal rail. End stiles shall be heavy gauge steel "U" shaped to contain the 2" deep section on both sides. Center stiles shall be "Z" shaped and attached to the upper and lower rails and to both reinforcing ribs at intermediate points. Assembly shall be by means of riveting.

Track. Track shall be heavy gauge galvanized steel. Vertical track shall be taper mounted to provide a wedge type closing action. Vertical track shall be attached to: wood casings with adjustable brackets; wood casings with continuous, regular 14 gauge galvanized steel angle; or steel jambs with continuous 1 14 gauge galvanized steel angle. Horizontal track shall be reinforced with galvanized steel angle.

Hardware. Rollers have continuous steel rim, ten 1/4" hardened ball bearings, in-case hardened inner and outer races. Roller hinges shall be 14 gauge galvanized steel. Bottom corner bracket if fabricated from heavy gauge coated steel. Bracket is attached to and end style to form a lifting cradle and also holds cable assembly securely in position at each side of door. Top corner bracket shall be galvanized steel and shall be adjustable.

Model 27(20) doors 14' 3" (16' 3") wide and wider have one reinforcing strut per section.

Lock. 

Spring Counterbalance, Torsion Type: Doors shall be balanced by helically wound, oil tempered torsion springs. Spring assembly shall be contained on continuous steel shaft, retained in ball bearing brackets. Lift cables shall be galvanized, aircraft quality with a substantial safety factor.

Copyright © MMV R.G. Tombs Door Company, Inc. & Paul Henry