623 
Report  on  Implements  at  York. 
the  receptacle,  passes  through  a hole  or  holes,  which  can  be 
regulated  to  pass  more  or  less  rapidly  according  to  whether  the 
situation  is  town  or  country,  and,  accumulating  in  a large 
receptacle,  overbalances  the  machine  and  cants  it  over  to  the 
orifice  of  the  clean-water  pipe  ; and  that,  by  a very  ingenious 
contrivance  in  the  form  of  an  auxiliary  pipe  which  conveys  a 
portion  of  water  direct  into  the  larger  receptacle,  the  balance 
is  maintained  until  the  rain  ceases,  when  of  course  the  water 
from  the  balance  compartment  gradually  finds  its  way  back  into 
the  receiver  ; and  as  the  weight  is  reduced,  the  machine  cants 
over,  ready  to  discharge  the  first  portion  of  the  next  rain  into 
the  waste.  In  order  that  the  merits  of  Mr.  Roberts’s  Separator 
might  be  thoroughly  tested,  machines  were  supplied  to  Mr. 
Copperthwaite,  the  Engineer  of  the  North-Eastern  Railway,  to 
be  used  on  a building  at  York  Station,  as  representing  to  some 
extent  a town  roof,  and  to  myself  at  Escrick  Park,  as  for  a 
country  house.  Mr.  Copperthwaite  was  able  to  collect  the  water 
in  two  tanks,  and  a comparison  of  results  with  indications  of  a 
neighbouring  rain-gauge  are  given  in  the  following  Table : — 
Date. 
Weather. 
Clear 
Water. 
Dirty 
Water. 
Total. 
Rainfall  by 
gauge 
X 1670  gal. 
Rainfall 
by 
gauge. 
Remakes. 
1883. 
Apr.  16 
Rain 
galls. 
nil 
galls. 
116 
116 
116-90 
•07 
19 
Rain 
173 
34 
207 
200-40 
•12 
20 
Rain 
392 
120 
512 
517-20 
•31 
21 
Rain 
nil 
33 
33 
41-75 
■023 
24 
Rain 
163 
330 
493 
501-00 
•30 
Snow-storm. 
25 
Pair 
. . 
26 
Fair 
. . 
27 
Fair 
28 
Rain 
135 
70 
205 
217-00 
•13 
29 
Rain 
586 
100 
686 
701-40 
•42 
30 
Rain 
385 
125 
510 
501-00 
•30 
May 
1 
Rain 
1G5 
155 
320 
317-30 
•19 
2 
Fair 
)5 
3 
Fair 
4 
Fair 
5 
Fair 
6 
Rain 
nil 
15 
15 
33-40 
•02 
Hail-storm. 
7 
Fair 
. . 
8 
Rain 
160 
45 
205 
250-00 
•15 
9 
Rain 
nil 
182 
182 
233-80 
•14 
10 
Rain 
nil 
70 
70 
116-90 
•07 
11 
Rain 
175 
170 
345 
417-50 
•25 
12 
Rain 
65 
45 
110 
116-90 
•07 
13 
Rain 
95 
15 
110 
100-20 
•06 
14 
Rain 
18 
55 
73 
75-15 
•045 
»? 
15 
Fair 
New  Washer 
„ 
16 
Fair 
put  into  Se- 
17 
Fair 
parator. 
„ 
18 
Fair 
19 
Fair 
