478 
Report  on  the  Exhibition  of  Implements 
Name. 
Stand . 
Article. 
Number  of 
Pipes. 
Diameter  of 
Pipes. 
Length  of 
1 Pipes, 
Power  required 
to  produce 
1 them. 
Price. 
Quality  of 
Pipes. 
Clayton  . 
9 
i 
100 
inches. 
H 
inches. 
13* 
874 
£. 
29 
Good. 
Whitehead 
17 
2 
100 
li 
13* 
1264 
28 
Very  good. 
Scraggs  . 
26 
2 
100 
n 
13* 
1333 
15 
Do. 
As  the  Society,  in  the  trial  of  all  machines,  considers  it  indis- 
pensable to  submit  them  to  the  test  of  the  dynamometer,  in  order 
to  ascertain  the  amount  of  power  required  by  each  to  produce 
certain  results,  and  when  tried  by  this  test  Clayton’s  machine,  as 
shown  above,  was  so  much  superior  to  the  others  which  came  into 
close  competition  with  it,  that  the  Judges  felt  they  could  not  do 
otherwise  than  award  the  prize  to  it.  They  are  of  opinion,  how- 
ever, that  in  other  respects  Whitehead’s  machine  is  superior  to 
Clayton’s.  His  H-inch  pipes  were  decidedly  superior  in  qua- 
lity, and  a much  greater  number  were  produced  in  a given  time. 
It  possesses  also  the  advantage  of  being  portable  and  more 
easily  moved  about  the  tilery,  whereas  Clayton’s  is  almost  neces- 
sarily a fixture.  It  can  be  worked  either  by  two  men  and  two 
boys,  when  a large  quantity  is  required,  or  it  can  be  worked  by 
one  of  each,  and  is  thus  adapted  to  a smaller  establishment. 
Clayton's,  on  the  other  hand,  cannot  be  worked  with  less  than 
two  men  and  two  boys,  and  more  of  the  latter  will  generally  be 
required.  Tn  the  larger  description  of  pipes  Clayton’s  vertical 
machine  has  a decided  advantage  over  all  the  horizontal  ones. 
When  Whitehead’s  machine  was  first  exhibited  at  the  York  meet- 
ing it  produced  two  rows  of  pipes  from  the  same  die-plate.  It 
now  produces  only  one,  and  the  power  required  to  work  it  is 
greatly  increased. 
Owen  Wallis. 
William  Lister. 
Testing  Apparatus. 
The  plate  annexed  represents  the  apparatus,  constructed  by 
Messrs.  Easton  and  Amos,  for  testing  the  threshing  machines 
under  the  immediate  superintendence  of  its  talented  inventor, 
Mr.  Amos,  who,  in  his  capacity  of  Consulting  Engineer  to  the 
Society,  has  skilfully  and  successfully  carried  out  the  wishes  of 
the  Council  in  the  important  point  of  accurately  testing  the  relative 
powers  and  comparative  value  of  implements  in  general,  but 
more  especially  in  that  most  important  one,  the  threshing-machine, 
