Section 9. Guide Rails.

Order 480. Every power freight elevator whose speed exceeds 150 feet per minute, and every passenger elevator, hereafter installed, shall have wrought iron or steel guide rails for car and counterweights. Where wrought iron or steel guide rails are not required, guide rails made of hardwood, or a combination of wood and steel securely bolted together, may be used. All guide rails must be made of sufficient strength, must rest on a proper foundation, and must be securely supported so that they will not spread.

Section 10.

Machines and Safety Devices.

Order 483. Prohibited Types. Belt-or chain-driven machines shall not be used for passenger elevators hereafter installed.

Hand rope control shall not be used for passenger elevators hereafter installed, except hydraulic passenger elevators on pressure not exceeding 60 pounds.

Order 484. Power Attachments to Hand Power Elevators. Power attachments must not be applied to hand power elevators unless all requirements for power elevators are complied with.

Order 485. Slack Cable Device. A slack cable device which will automatically shut off the power and stop the machine, if the cables slacken or break. shall be provided on all power elevators where the cables wind around a drum; except belt-driven freight elevators heretofore installed where the machine is in good condition and where such device cannot be provided without rebuilding the machine.

Order 486. Automatic Limit Stops. Automatic stops which will stop the car at the highest and lowest landings, independently of the operating device, shall be provided for every power elevator except direct lift plunger elevators with hand rope control and speed not exceeding 75 feet per minute at two-thirds capacity.

Order 487. Plungers. The plunger of every plunger elevator shall be provided with a ring, or shall be fluted, to prevent its leaving the cylinder. Cast iron plungers shall not be used for elevators which travel more than 30 feet.

Order 488. Catching Device and Speed Governor. An automatic device which will catch and stop the car if it drops, shall be attached to every elevator except,

(1) Direct lift plunger elevators, and,

(2) Carriage-type elevators which travel not more than 18 feet and in no case more than one story, provided the cables and their fastenings shall have a factor of safety not less than 10.

A speed governor shall be connected to the catching device of every power elevator which travels more than one story or more than 18 feet. The governor shall be set to operate at 40 per cent excess speed, but need not be set at a lower speed than a 150 feet per minute and shall not be set at a higher speed than 700 feet per minute.

In all new installations of catching devices to which speed governors are attached, the dogs or clamps of the catching device shall be attached to the under side of the car platform.

Every type of catching device shall be subjected to an actual drop test made at the risk and expense of the manufacturer and

under the direction of the Industrial commission; and complete plans and specifications of such device shall be submitted to the commission for approval. The test load shall be equal to twothirds of the capacity. The catching device must stop and hold the elevator within a drop of ten feet. No catching device shall be used which has not been so approved.

In every new installation, the speed governor and catching device must be put to a running test with full load on platform.

Order 489. Governor Cables. Wire governor cables shall be used on all elevators whose travel exceeds 75 feet, or whose speed exceeds 150 feet per minute, except where a type of catching device is used which does not require a continuous pull to fully set the same. Hemp rope with wire center may be used in place of wire cables, if approved by the Industrial commission.

Order 490. Hand Rope Locks. Every power freight elevator with hand rope control shall be provided with a lock on the car so arranged that the hand rope can be locked at each landing to prevent the operation of the car by persons on other floors.

Order 491. Sheave and Idler Guards. The hand rope shall be equipped with a guard, to prevent injury, at the point where the sheaves lead the rope from the shaft way to the machine. All sheaves and idlers under which are led hoisting or counterweight cables, shall be provided with proper guards to prevent the cables leaving the sheave or idler if the cables become slack. Every idler sheave around which is led an operating rope or governor rope shall be provided with a proper guard to prevent the rope leaving the sheave.

Order 492. Centering Rope. Every hand rope controlled elevator, except hydraulic elevators, shall be provided with a centering rope.

Order 493. Warning Chains. Warning chains shall be hung from the platform, in front of all entrances, on all power freight elevators except where landing doors are provided which can be opened only from the shaft way, or the opening of which immediately stops the car.

Such chains shall be at least five feet long, not more than five inches apart, made of not less than No. 10 wire with long links.

Order 494. Electric Brake and Circuit Breakers. Every elec-. • tric freight elevator hereafter installed whose speed exceeds 75 feet per minute and every electric passenger elevator hereafter installed, shall be equipped with:

1. An electric brake.

2. An overload circuit breaker or an enclosed fuse. If a circuit breaker is provided for this purpose it must be outside of and in addition to the elevator control equipment.

3. A no-voltage circuit breaker. This may be provided as a part of the control equipment.

4. An emergency switch in the car by which the car may be stopped.

Order 495. Limit Switches; Reverse Phase Relay. Every electric freight elevator hereafter installed, whose speed exceeds 75 feet per minute, and every electric passenger elevator hereafter installed, shall be equipped with limit switches placed in the shaftway and arranged to shut off the motor, apply the brake, and

gradually stop the car, if the car passes the highest or lowest landing.

Every electric elevator driven by polyphase alternating current, whether heretofore or hereafter installed, shall be protected against damage due to phase reversal by either.

(1) Limit switches as above specified arranged to cut all wires, or all except one, and so connected that after the car overtravels, it cannot be moved until the phase reversal is corrected; or (2) An approved reverse phase relay.

Order 496. Switches and Wiring. Switches and fuses shall be placed in metal cabinets near the machine. If wires carrying current for light or power for the operation of the elevator are run inside the shaftway, they must be in conduit.

Order 497. Signal System. Every elevator and every power dumbwaiter shall be equipped with a signal system or warning bell, so arranged that it can be safely and conveniently operated.

Order 498. Elevators Kept Clean. All elevators and other mechanical devices used for similar purposes must be kept in good repair, and clean and free from excessive grease and dirt.

CODE OF BOILER RULES

PART I.

INSTALLATION, OPERATION AND INSPECTION OF STEAM BOILERS IN WISCONSIN.

4100. Safety Regulation. No boiler shall be operated at a pressure in excess of the safe working pressure allowed by the annual inspection certificate (See order 4107), which pressure is to be ascertained by means of these orders.

Steam boilers shall be equipped with such appliances as will insure safety of operation as hereinafter ordered.

No person shall remove or tamper with any safety appliance prescribed by the hereinafter orders, and no person shall in any manner load the safety valve to greater pressure than that allowed by the certificate of inspection.

In all cases boilers shall be so placed as to give ample room between any ceiling wall or partition to connect and operate any valves or pipes or other fittings or connections used in such steam boilers.

Whoever owns, uses or causes to be used a boiler subject to inspection, unless the same is under the periodically guaranteed inspection of city, company or corporation allowed by the commission to handle their own inspections shall report to the Industrial commission, on January 1st of each year, the location of such boilers.

The owner or user of a boiler subject to regular annual inspections by the Industrial commission, shall immediately notify the commission in case a defect affecting the safety of the boiler is discovered.

4101 Inspection Fees. A fee of $5.00 will be charged by the commission for a hydrostatic pressure test or an inspection of a boiler while not under pressure.

A fee of $2.00 will be charged by the commission for each external inspection of boilers while under steam pressure.

4102. Inspection of Steam Boilers. All steam boilers operated in the state of Wisconsin, except those included in order 4103, shall be subject to regular annual internal and external inspection once each year. Should operating conditions require longer periods than 12 months, an extension of time may be granted on application to the commission.

The owner or user of a boiler subject to inspection by the commission shall prepare the boiler for inspection. To prepare a boiler for an internal inspection all hand-hole. man-hole plates and wash-out plugs shall be removed. The furnace and combustion chamber shall be thoroughly cleaned.

4103. The following steam boilers will not be subject to regular annual inspections by the Industrial commission:

1. Boilers which receive regular inspection by United States government inspectors:

2. Boilers of steam fire engines;

Boilers used exclusively for agricultural purposes;

3.

4.

Boilers of less than ten horse power;

5. Boilers on which the pressure does not exceed fifteen pounds. 4104. Insurance Inspections. All boilers subject to periodic inspection of insurance companies authorized to insure boilers in this state, shall not be subject to annual inspection by this commission on the following conditions:

The insurance companies' regulations shall conform with the hereinafter orders.

The insurance companies' inspectors who inspect boilers operated in this state shall hold certificates of competency issued by the Industrial commission.

Reports of all inspections shall conform to the requirements of commission.

this

A copy of all reports shall be forwarded to this commission within fourteen days after the inspection is made.

Insurance companies whose inspectors hold certificates of competency shall report to this commission the name of the owner or operator, and the location of every boiler on which insurance has been refused, cancelled or discontinued, giving the reasons therefor. 4105. Steam boilers within the regular corporate limits of the cities which are regularly inspected by authorized city boiler inspectors will not be subject to regular annual inspection by this commission, provided the boilers are properly installed, equipped with fittings necessary to safety, and are not operated at pressures in excess of that determined by the hereinafter orders.

4106. Steam boilers owned or operated by companies or corporations may be exempted from annual inspection by this commission provided a regular inspection service is maintained by the operators under the following conditions:

1. The inspection service shall be subject to the approval of this commission:

2. The boilers shall be properly installed and not operated at pressures in excess of that determined by the hereinafter orders.

3. Reports of inspections on all boilers shall be made to the commission on approved forms.

4107. Annual Inspection Certificate. An inspection certificate shall be issued by the city, corporation or company, employing the inspector, stating the pressure allowed for one year after an inspection has been made, to determine the safety of the boiler for that pressure.

This certificate shall be kept on file and at all times be made available when called for by a deputy of this commission.

The pressure allowed, as stated in the certificate of inspection, shall not be in excess of that determined by the orders in Part II of this code for boilers installed prior to July 1, 1916.

The pressure allowed, as indicated by the certificate of inspection or badge plate shall not be in excess of that determined by the orders in Part III of this code for boilers built after July 1, 1916. All boilers built after July 1, 1916, shall be inspected and stamped in accordance with the orders contained in Part III of this code.

4108. Certificate of Competency. Certificates of competency shall be issued to persons who pass an examination which shall be prescribed by the Industrial commission and which shall determine the fitness and competency of candidates for such certificates of competency.

A certificate of competency issued to an employee of any city, corporation or company shall be annulled upon the termination of his employment with that city, corporation or company by which he was employed at the time of the issuance of the certificate of competency; such certificate of competency may, however, be renewed without a re-examination.

A certificate of competency may be revoked at any time, but the holder of such certificate of competency shall be entitled upon demand, to a hearing before the Industrial commiss on before the revocation of the certificate of competency.

Holders of certificates of competency shall comply with the hereinafter orders and copies of their reports of inspections shall be forwarded to the Industrial commission within fourteen days after each inspection.

4109. Stamps and Numbers on Boilers. The owner or operator of a steam boiler shall number each boiler in some convenient and permanent manner.

Boilers installed after July 1, 1916, shall be stamped by the builder with a serial number and his name in accordance with the hereinafter orders.

Boilers built and installed after July 1, 1916, shall comply with orders in Part III of this code, and each boiler shall be inspected, stamped, and a data or report sheet furnished the commission by the builder.

4110. Special Type of Boilers. Builders of special types of boilers subject to inspection but not covered by the hereinafter orders shall forward to the Industrial commission blue prints and specifications of the type.

4111. Board of Boiler Rules. An advisory board of boiler rules appointed by the Industrial commission without compensation, may hold hearings and gather such information as will assist in the formation of recommendations to the commission that will insure safety in the installation and operation of steam boilers.