Mar. 12.] THE NEW ZEALAND GAZETTE. 847

“Scaffolding” means any structure or framework used or intended to be used for the support of workmen in erecting, demolishing, altering, repairing, cleaning, painting, or carrying on any other kind of work in connection with any building, structure, ship, or boat, and includes any swinging stage used or intended to be used for any of the purposes aforesaid:

“The said Acts” mean “The Scaffolding Inspection Act, 1906,” and its amendments.

2. The notice of the Inspector of intention to erect scaffolding (under section 4) shall be in the Form Sc. 1 in the Schedule to these regulations.

The directions of the Inspector to the owner or person in charge of or employed on scaffolding or gear under section 6, (1) and (2), shall be in the Forms Sc. 2 and 3 in the Schedule hereto, with such modification as may be necessary to meet the circumstances of each case.

3. All scaffolding, and all gear used in connection therewith, in any district for which an Inspector has been appointed under the said Act shall be of the description indicated in these regulations under the respective headings, and shall be set up, built, maintained, and used in accordance with such regulations: Provided that it shall be lawful for any Inspector to authorise the use of any other description of scaffolding or gear in any case where he has personally inspected the same, and certified in writing that in his opinion such scaffolding or gear may safely be used for the purpose intended.

Swinging Stage.

4. Every swinging stage used or intended to be used in connection with any scaffolding as above defined shall be so constructed or built to bear three times the maximum weight ordinarily required.

Blocks to be of iron or wood not less than 4 in. in diameter of sheaf, consisting of double and single block. All rope to be manila, not less than 2½ in. circumference.

Platform to be not less than 18 in. in width. Each swinging stage 18 ft. in length shall have two hangers, to be wrought iron or mild steel of not less than 1 in. diameter, or 4 in. manila rope, or 1¾ in. steel wire rope, fitted to the satisfaction of the Inspector. The distance between the hangers to be not more than 12 ft. Where the stage exceeds 18 ft. in length, and the distance between the hangers exceeds 12 ft., the planking shall be stiffened with an approved truss underneath, and other parts to be of stronger construction, as may be directed by the Inspector.

Guard-rail to be of 3 in. manila rope, 1 in. pipe, or 3 in. by 2 in. timber securely fastened not less than 2 ft. 6 in. from floor; also fender-board not less than 4 in. by 1 in. on outside and both ends.

Tripod Gantries.

5. Gantry not exceeding 100 ft. high for a steam or other crane to lift a weight of 5 tons and not exceeding 10 tons to be constructed as follows: Tripod gantry towers to be not less than 6 ft. by 6 ft., and to be constructed with 7 in. by 7 in. corner-posts extending the full height of the gantry, properly fish-plated and bolted at junctions; corner-posts to be firmly tied together by 9 in. by 3 in. horizontal ties at 10 ft. centres, and each side of the tower to be properly braced with 7 in. by 3 in. diagonal braces, firmly bolted to the corner-posts; each tower to have a centre-post 8 in. by 8 in., these posts to extend the full height, and to be firmly fish-plated at junctions, and to be stiffened at intervals with 5 in. by 3 in. stays to the corner-posts of each tower. The towers to be constructed by means of horizontal braces, 9 in. by 3 in., spaced not less than 20 ft. apart. Each side of the gantry to be braced with diagonal braces of 9 in. by 3 in., firmly bolted to the timbers of the towers and at intersections; the towers to rest on 9 in. by 9 in. sleeper-plates, and to be tied together at top by 9 in. by 9 in. kerb; all bolts for gantries to be not less than ¾ in. diameter. The back stays of the crane to be tied to the 8 in. by 8 in. centre-post by means of two 4 in. by 1 in. wrought-iron straps extending over the back stay of the crane and down each side of the centre-post. The length of the strap to be 9 ft., and to be firmly bolted to the centre-post and to the timbers of the crane by 1 in. bolts. The ends of the straps to be also turned and mortised into centre-post 1½ in. Each centre under the back stays of the crane shall have a platform at the bottom formed of 9 in. by 3 in. timber firmly bolted to the centre-post and to the sides of the tower, and each tower shall be loaded with a weight equal to three times the weight the crane has to lift.

The construction of a tripod gantry not exceeding 100 ft. high for a crane to lift from 10 tons to 15 tons to be similar in all respects to the foregoing, with the exception that the corner-posts of the towers shall be 8 in. by 8 in.

Where circumstances necessitate a gantry exceeding 100 ft. in height, it shall be constructed to the approval of the Inspector.

Other styles of gantries to be erected as approved by the Inspector.

Hand-cranes, Derricks, &c.

6. All hand-cranes, derricks, or any such similar gear used in connection with any scaffolding shall, after erection and before being put into commission, be tested with a load of 25 per cent. more than that which the crane or derrick is designed to lift. Such test is to be in the presence of the Inspector.

Each back stay of any crane shall be loaded with a weight equal to at least three times that which the crane has to lift.

Every hand-crane shall have marked in a prominent position the maximum load which the crane is designed to lift.

Lifts must be fitted with an automatic catch of the design attached, or with such other appliance as may be approved by the Minister.

APPROVED FORM OF AUTOMATIC CATCH FOR TEMPORARY LIFT.

FRONT VIEW.

PLAN & SIDE VIEW OF CATCH.