NEIMME: Lamps

 STATUTORY RULES AND ORDERS, 1914 No. 316. MINES. Coal Mines Act.

THE SAFETY LAMPS ORDER OF THE 9TH MARCH. 1914.

 In pursuance of Section 33 of the Coal Mines Act, 1911, I hereby make the following Order amending the Safety Lamps Order of the 26th August, 1913: -
1. The Schedule to " The Safety Lamps Order of the 26th August, 1913," shall take effect subject to the amendments set forth in the Schedule to this Order.
2. This Order may be cited as " The Safety Lamps Order of the 9th March, 1914."

R. McKenna,
 One of His Majesty's Principal Secretaries of State. Whitehall,
9th March, 1914.

 Schedule

(1) In the description of the Hailwood Lamps No. 01 and No. 01S:

(a) "1.5 square inches" shall be substituted for "1.3 square inches" in paragraph (2).

(b) the following proviso shall be added at the end of paragraph (3): - Provided also that the lamps may be fitted with the Hailwood Combustion Tube. This tube, the general design of which is shown in Plate A, consists of a spring clip or other attachment or frame for supporting a small glass chimney or combustion tube, which is thus held over the flame.

When a double gauze lamp is used, the spring clip or other attachment (Plate A, Fig. 1) is secured to a metal chimney of suitable dimensions.

When a single gauze is used with a metal chimney, the spring clip or other attachment (Plate A, Fig. 2) is secured to the metal chimney, and the metal chimney is provided with a horizontal, stepped or carved gauze. The joints between the gauze and the metal chimney and between the gauze and the outer protecting glass are flame-tight, and the metal chimney is of the dimensions of the Mueseler chimney above specified, or of the following dimensions:

 

  

Inches

Height of top of chimney above top of outer glass, not less than  

2 1/4

Height of bottom of chimney below Mueseler chimney-gauze, not less than  

1/32

Diameter at top not greater than  

3/4

Diameter at bottom not greater than  

1 1/2

The metal chimney may be fitted, or not, with a gauze cap or metal hood.

The frame used for supporting the glass (Plate A, Fig. 3) consist of two metal plates connected by pillars. The upper plate rests on the outer protecting glass and forms a flame-tight connection with the protecting glass and gauzes ; or, alternatively, the upper plate may be hinged or otherwise attached directly to the metal chimney. The lower plate carries the glass combustion tube.

 

(2) In the description of the J.C.B. Lamps Nos. 19 and 22:

(a) the proviso to paragraph (4) shall be amended to read as follows:  Provided that the lamp may also be made to take glasses of the following dimensions:

External diameter  

 58mm { + 0mm –1mm } or  

 56mm { + 0mm  -1mm}

Height  

60 mm ± 1/4mm or  

 67mm ± 1/4mm

Size mark  

58-60 or

  56-67

(b) The words and figures " and 9th January 1914 " shall be added at the end of proviso (i) in paragraph (9). 

 

 

(3) In paragraph (4) of the description of the Laidler Lamps Nos. 1, 1A and 2, the words "bearing one of the size marks " shall be substituted for the words " bearing the size mark" in line 2 ; and "Size mark 57-60 or J.L. 1A", "Size mark 57-67 or J.L. IA" and "Size mark 53-60 or J.L. 2" shll be substituted for "Size mark 57-60 Size mark 57-67" and "Size mark 53-60" respectively.

 

 

(4) In the description of Patterson and Company's Safety Lamps Type A 1 and Type A 3:

(a) The words " Fitted or not with a deflector; and with or without a baffle ring" shall be inserted after the word "gauze" in paragraph (1).

(b) Paragraph (5) shall be amended to read as follows:

(5) Oil vessel of brass, steel or iron of sufficient capacity to provide the required light for the required time as specified in paragraph (8) below: fitted with a flat 5/16 to 5/8-inch burner (fitted or not with a porcelain body): provided or not with a winding wick adjuster; and with or without an electric igniter of the type shown in the following drawing, both so fitted as not to cause the lamp to be dangerous in an explosive atmosphere.

 

 

 

(5) In paragraph (7) of the description of the "Prestwich Patent Protector" Lamp, the dimension limits and size marks specified for the glasses shall be altered to read as follows: -

  

   Outside Glass.  

   Inside Glass.

External diameter  

  58 1/2mm + 0mm   -1 mm

   46 1/2mm   + 0mm -1 mm

Height  

 59 1/2mm ± 1/4mm  

 59 1/2mm   ± 1/4mm

Size mark

58 ¼ - 59 ½ or Protector 1 or

P.L.C. 1.  

46 ¼ - 59 ½ or Protector 2 or

P.L.C. 2

 

 

 

(6) In paragraph (4) of the description of the Protector Lamp and Lighting Company's "No. 176 Oil Lamp" the dimension limits and size marks specified for the glass shall be altered to read as follows:

External diameter  

 58 1/4mm  + 0mm -1mm

Height  

 59 1/2mm  ± 1/4mm

Size mark  

 58 ¼ - 59 ½ Protector 1 or P.L.C. 1.

 

 

 

(7) Paragraph (6) of the description of the "Ceag" Miners' Safety Lamp shall be amended to read as follows:

(6) An efficient locking device of one or other of the following types securing the cover to the case: -

(i) a magnetic lock so constructed that the bolt can only be withdrawn by applying the pole of an electro-magnet to the outside of the lock.

(ii) a lock of the type shown in the following drawing consisting of a steel bolt locked in position by a lead-rivet lock.

The following paragraph shall be added at the end of the description of the glasses bearing the above duly registered trade mark:

(7) That each glass issued after 1st February 1914, shall have been tested by the makers before it is issued by heating it in boiling water to a temperature of 212°F. and Then plunging it immediately into water at a temperature of approximately 60°F., and shall bear an additional brand mark TESTED to denote that it has been so tested.

(9) BRAND:-  

In the description of the glasses bearing the above duly registered trade mark, the footnote shall be amended to read as follows:

"† Glasses manufactured before the date of this order which bear the brands but otherwise conform with the specification, are also approved."

(10) BRAND:-  

In the description of the glasses bearing either of the above duly registered trade marks

(a) paragraph (1) shall be amended to read as follows:

(1) That they are made in sizes not being more than 85mm nor less than 50mm in external diameter, not more than 90mm nor less than 54mm in height, and not more than 6mm nor less than 4mm in thickness: and that when used with an outside protecting glass they are made in sizes not being more than 57mm nor less than 49mm in external diameter: not more than 67mm nor less than 60mm in height: and not more than 4mm nor less than 2mm in thickness.

(6) " 4th February and 9th October 1913 " shall be substituted for "4th February 1913" in paragraph (5).

(ii)  BRAND:-  

In the description of the glasses bearing the above duly registered trade mark:

(a) paragraph 1 shall be amended to read as follows:

(i) That they are made in sizes not being more than 72mm nor less than 50mm in external diameter, not more than 70mm nor less than 50mm in height, and not more than 6mm nor less than 4mm in thickness: and that when used with an outside protecting glass they are made in sizes not being more than 3mm nor less than 1mm in thickness.

(b) "5th May and 9th October 1913" shall be substituted for "9th May 1913" in paragraph (5).