|1||424||22||22||Pine||Rear of rim|
This item is utilised in|
Method 2 increase.
Scale = 1 pixel per mm.
petroleum jelly should be used on the upper and lower surfaces of the rim and the grooves that the slide runs in.
linseed oil is used on the external and internal vertical surfaces.
There is a second component to this item... The slide is illustrated below left outlined in red, with the outer portion "ghosted" in grey/white.
The slide should have its outer edges treated with petroleum jelly and the major surfaces coated with linseed oil.
When the slide is inserted the access of the bees in
the bottom box is cut off, but the upper box bees can still come
and go from the same entrance position that they are used to.
The slide should be shorter, by one bee space, than the space it slides into. For practical reasons dead bees and debris may be dislodged when the slide is inserted. The space allows this debris to be pushed along by the back edge of the slide, but as it is slightly shorter it does not cause any jamming. The slide must still overlap the excluder woodwork by at least one bee space so as to ensure total isolation when the slide is in the closed position. The slide locates its depth of penetration by the shoulders of the runners on the back edge of the entrance reducer.
Written... March/April 2001
Revised... 31 December 2001