50 



MADRAS FISHERIES BULLETIN 



VOL. XIII, 



soldered. This forms the dish or box in which the sardines are 

 packed, and is closed by a lid precisely similar to the bottom plate. 

 The object of the ratiere is not only to hold the body while being 

 soldered but to squeeze body and bottom (or top in packing) close 

 together so as to form a very narrow channel for the solder; this 

 prevents waste of solder or the solder from dropping into the body. 

 The tops and bottoms are struck at one blow out of the flat in the 

 swan-neck press, which at the same time cuts the proper sized 

 piece, stamps it with its beading or fluting, and curls about % inch 

 all round into a rim at right angles to the plate ; this curled rim fits 

 inside the body. 



For cylindrical tins the method is the same, mutatis mutandis, 

 but no ratiere is used, the cylindrical dish being simply centered 

 on a turn-table for the application of the solder. 



33. It may be well to tabulate certain figures showing waste or 

 economy in making soldered cans. 



- No. Name of can. 



(I) 



(2) 



Si/.f of can. 



(3) 



I) 



o « 

 S 

 m. 



0) 



\* 



*.* "^ 

 M — 

 C O 



16) (7) 



; z 



en 



Z 



Remarks. 



(8) 



1 Quarter (Govern- 4|" x 3" x i' 

 ment Cannery). 



1 1 



44 



•^,0 



Quarter (elsewhere). 4" « 3" 



Do. 

 Quarter ( French) 

 Half (Government 

 Cannerv). 



Do. 4i" >= 3 



4 "3 

 4i" X 3" 

 6" X4X 



7 Half (elsewhere) .. 4.V 



8 Cylindrical (Govern- 



ment Cannerv). 



9 Do. 

 10 Do. 



I" 



xr 



Xl" 



'x l\ 

 X Z 



31 



4 



1\ 



22 



31" xj" 9i 16 



4f' X n' 12-13 24 



4|" X 3" 24-26 50 



4i" >< 4i" i 36 I 76 



For item 1, columns 

 (2), (3), and (4) refer 

 to both soldered and 

 solderless quarters. 



The tin plate required 

 includes rims or 

 flanges, Imt not waste 

 strips. 



5^ 31 



5- 

 60 . 



82 

 103 I 



Uem 6 in regular use. 



Items 8, 9 and 10 are 

 in regular use at the 

 Ctovernment Cannery 

 for mackerel, prawns, 

 fish in slices. 



33 Item 7 is a small 



half. 

 30 



3' 

 33 



