52 STABLE BUILDING AND STABLE FITTING. 



Teblmtt's 

 " safety 

 brick." 



size grooved clinker is used, this is reduced to if inch ; 

 whilst in those with a diagonal groove (the width of the brick 

 being 3 inches), the distance will be found to work to about 

 4;^ inches. 



All descriptions of chamfered bricks must be truly moulded, 

 carefully laid, and well grouted, or they are open to the objec- 

 tion of allowing the urine and washings to soak into the 

 foundations, as they form channels at the joints. It is rightly 

 considered that by the use of the semicircular grooves, the drain- 

 age is rendered more efficient, and the paving can be laid at a less 

 inclination than it would otherwise require, say, \\ instead of 

 2 inches in the length of a stall. The V-shaped grooves and 

 chamfered joints are frequently not only too deep and sharp, 

 so that they secrete the refuse, and are not completely 

 cleaned by sweeping ; but the liquid does not pass in the 

 most direct line to the gutter, and is reduced in velocity by 

 the diminished gradient of a zigzag course, where the grooves 

 run at right angles with each other. 



One of the strongest recommendations put forth by Mr. 

 Tebbutt, the inventor of an entirely new kind of stable brick, 

 is its facility for surface drainage. This brick has eight regular 



circular protuberances on its surface, 

 as shown on Fig. 32, the knobs 

 being 2 J inches across, an inch 

 high, and f of an inch apart. They 

 possess something of the appearance 

 of the old cobble stones flattened 

 down, and have, to a great extent, 

 their advantage in giving a foothold, 

 without the imperfect drainage the old system created. The 

 rounded surface of each protuberance is intended to guide the 

 hoof downwards against the next knob, when foothold is re- 

 quired ; especially when the hoof is placed at an angle to the 

 floor in the act of rising. A very perfect system of drainage 

 appears to the author to be obtained in the use of these 



Fig, 32. 



