(Fig. 5)

The fuze is used in the H.E. shell (Igr. 18) and the H.E. Al shell (Igr. 18 Al.) (for the 7.5 cm light infantery howitzer l.I.G. 18). A brief describtion of the fuze, under the designa-tion "J.Gr.Z. 23 n.A.", is included in Pamphlet No. 1. Refenrence are also made to it in the description of the 7.5 cm light infantry shell in Pamphlet No. 8.

As will be seen by the drawing, the fuze is of the normal 23 type with an optional delay of 0.15 of a second, but has a collar weight in the form of a cylindrical iron ring below the graze pellet. The collar has a chamfered central hole to engage a corresponding sur-face on the detonator plug which protrudes from the base of the graze pellet. The collar is retained in a central position within the fuze by a holder which consists of a brass washer with arms cut and bent up to engage the wall of the collar. A lateral thrust on graze would cause the collar to move side-ways, and an action similar to that of an "All-ways" fuze would be brought about by the inclined surfaces of the collar and detonator plug. The weight of this fuze is 12 1/2 oz.

Fig. 5