♦ KNOWLEDGE 



[Adg. 



, 1885. 



1.,- 



I! the 



of the 



1 leiched Thttibckcun 



ibuut 15 ft long Should 



^ott-d to complete the charging 



.ithei, thu^ 

 m the hi^l, 



-istsoft^. 1 



no dehy occui, it i^ ^x^ 

 of the holes by October ] 



The next opeiitiun -nill betoicmo-ve all the machinery 

 md buildings, and the top of the ishnd do\vn to the 

 watei s edge Of coui^c niueh c,f this woik can be done 

 duimg the time of eliiigmg The mine Tvill then be 

 Hooded md the chaige cxjiloded by meinb of electricitj 

 -mg, Iig 1, sho-i^s the drainage ditch 



Thet: 



deep gxlleiy, extcnehn 

 noithof the shifc 

 iliteh, iNhieh at the 

 h\e feet fiom the fl 

 Lxtendmg aiound 



ilono thb eabteiu c\ 

 with thefiist, a til] 

 to thesujip, just £1 

 iH mpin^ engines ]i 



uinutc -"le loeiten 



sthe 



e mine i short dist uie e 

 Ihe longitudinal galleries cioss this 

 l.oiiu shown m the cut is some thiity 

 1 1 1 ll 1 U isooden biidt,tb 



1 f of the mine md 

 1 11. 1 ditch, connecting 



1 ' I ' I 1 111 the eastern side 



^t tl, 1,1 HI shift (Fig 9), Tvhei- 

 iMi,, 1 . 1 . il\ lit 4,000 gallons pei 

 1 I Is I 1 1.1 di lining the mine bj 

 lueimb Oi xeliteh aiouncl the extiemity -nasmode necessii j 

 bj the shipe, of the iivei bed m oidei to le-ve sufhcitnt 

 lock m the loof, the uilkiies slope downi\aid fiom the 

 < eutie 





TRICYCLES IN 1885. 



Br John Browning. 



{Chairman of the London Tricycle Cluh.) 

 A PERFECT SADDLE. 



THK Tubular Buffer Tension Saddle, just brought out 

 by Messrs. Lamplugh & Brown, completely ecli],ses 

 ■• U their former contrivances. The frame of the saddk 

 is formed of two steel tubes, about a quarter of an inch m 

 diameter ; one straight, forming the backbone, the other 

 curved, acting as the back of the saddle. The leather, 

 which is stretched on these tubes, being divided, when 



the leather is on, the two bidts aie locked together b> i 

 strong hook underneath 



Whenever the tiicycle has to be kept m a damp place, 

 or left in the oiicn tii, the leather top can be removed in 

 a sm^k iiuimt. Not only is a dry seat thus ensured, 

 but It \\ 1,1.1 ll iliiiiist impossible foi any one to ride 

 ^■^^ ,\ ^\iil, tl m . hine Foi when the leather top ifi 

 iLii,. \. 1 ill. (uiMil tube on which the rubbei lined 

 liiel (1 the siekUc slips drops, bemg only held in position 



^\ lull being iidden the saddle is not a rocking saddk 



ll, it Is it IS not free to tuin on a hinge, but it is i 



,( / Sill. Ik gi\ mg way a little on each side — fiom 



'll. I 11 .1 1 all motion of the leg, and thus pre ventmo 



till I ll iliii^ «lnfh many iideis suflci from so severely 



^ 



The uiidci \icw of the saddle is shown in Fig 2 

 this, C and D lepiesent a nut and a check nut, which a 

 used foi mcieising the tension when it is necess''iy 



.^ 



The s^ 



The peil 



motion of the saddle is shown in Fig. 3. 

 le saddle lemams stationary, but the sides 

 ow n on the luvot H by the action of the 

 his swaying motion such a luxury that I 

 a hxedsiddlc ao^m 



,r- C^ ^^ 



..hedaneyolded i.s 



