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| SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 23 | COMBUSTION APPARATUS; COMBUSTION PROCESSES |
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| F 23 H | GRATES; CLEANING OR RAKING GRATES |
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1/ | 00 | Grates with solid bars |
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1/ | 02 | . | having provision for air supply or air preheating, e.g. air-supply or blast fittings which form part of the grate structure or serve as supports |
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1/ | 04 | . | having a variable burning surface |
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1/ | 06 | . | having bars at different levels (double grates F 23 H 5/00) |
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1/ | 08 | . | Vertical grates |
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3/ | 00 | Grates with hollow bars |
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3/ | 02 | . | internally cooled |
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3/ | 04 | . | externally cooled, e.g. with water, steam, or air |
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5/ | 00 | Double grates |
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7/ | 00 | Inclined grates (inclined travelling grates F 23 H 11/12) |
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7/ | 02 | . | with fixed bars |
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7/ | 04 | . | . | in parallel disposition |
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7/ | 06 | . | with movable bars disposed parallel to direction of fuel feeding |
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7/ | 08 | . | . | reciprocating along their axes |
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7/ | 10 | . | . | rocking about their axes |
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7/ | 12 | . | with movable bars disposed transversely to direction of fuel feeding |
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7/ | 14 | . | . | reciprocating along their axes |
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7/ | 16 | . | . | rocking about their axes |
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7/ | 18 | . | . | reciprocating in an upward direction |
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9/ | 00 | Revolving grates; Rocking grates (F 23 H 7/00 takes precedence) |
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9/ | 02 | . | Revolving cylindrical grates |
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9/ | 04 | . | Grates rocked as a whole |
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9/ | 06 | . | the bars being rocked about axes transverse to their lengths |
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9/ | 08 | . | the bars being rocked about their longitudinal axes |
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9/ | 10 | . | . | and modified to move fuel along the grate |
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9/ | 12 | . | the bars being vertically movable in a plane |
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11/ | 00 | Travelling grates |
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11/ | 02 | . | with the bars disposed on transverse bearers |
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11/ | 04 | . | with the bars pivoted at one side |
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11/ | 06 | . | with the bars movable relatively to one another |
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11/ | 08 | . | with several individually-movable grate surfaces |
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11/ | 10 | . | with special provision for supply of air from below and for regulating air supply |
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11/ | 12 | . | inclined travelling grates; Stepped travelling grates |
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11/ | 14 | . | serving as auxiliary grates |
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11/ | 16 | . | for multi-layer stoking |
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11/ | 18 | . | Details |
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11/ | 20 | . | . | Driving means |
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11/ | 22 | . | . | Moving fuel along grate; Cleaning of grate |
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11/ | 24 | . | . | Removal of ashes; Removal of clinker |
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11/ | 26 | . | . | . | by dumping |
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11/ | 28 | . | . | Replaceable burning-surface |
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13/ | 00 | Grates not covered by any preceding group |
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13/ | 02 | . | Basket grates, e.g. with shaking arrangement |
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13/ | 04 | . | Telescoping grates |
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13/ | 06 | . | Dumping-grates |
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13/ | 08 | . | Grates specially adapted for gas generators and also applicable to furnaces |
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15/ | 00 | Cleaning arrangements for grates (not forming part of the grate F 23 J 1/00) |
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17/ | 00 | Details of grates |
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17/ | 02 | . | End fittings on bars |
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17/ | 04 | . | . | of travelling grates |
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17/ | 06 | . | Provision for vertical adjustment of grate |
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17/ | 08 | . | Bearers; Frames; Spacers; Supports |
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17/ | 10 | . | . | Dead plates; Imperforate fuel supports |
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17/ | 12 | . | Fire-bars |
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