| Seconds. | Range. |
| 2 | 883 yards |
| 3 | 1401 " |
| 5 | 1966 " |
| 6 | 2433 " |
| 8 | 3037 " |
| 9 | 3461 " |
| 12 | 4225 " |
The Frankford Arsenal Combination Fuze, 15 Seconds, Model 1894, for Shrapnel of Field-guns.
This is a time and percussion fuze ([Fig. 46]). It weighs 17½ oz. The time element is contained in the front part of the bronze body (a) of the fuze, and the percussion element in the rear part. The time-plunger (b) has five lugs (k) which hold the plunger in position above the firmly fixed steel firing-pin (c) after the safety-pin has been withdrawn; these lugs are broken by the shock of discharge. The safety-pin (j) passes through a hole in the upper part of the plunger, and it and the lugs are protected by the brass cap which is pierced to allow the insertion of the safety-pin.
Fig. 46.
By this arrangement the plunger and its lugs are entirely protected from any blow that may be received on the nose of the fuze. The priming composition is contained in the base of the plunger (at i), and is protected by a disk of tinfoil.
The compressed powder-ring (q) is held in a groove in the body of the fuze by a brass ring, and four holes (p) permit the flame from the composition (i) to ignite it.
The cone (d), made of an alloy, is held in place by a brass clamping-nut (h) and two brass pins (l). A lip (m) on the base of the cone fits into a corresponding groove in the fuze-body and prevents the premature ignition of the powder (o) in the fuze-chamber.
A groove in the cone contains the time-train (e), which communicates through a brass tube (n) with the powder in the fuze-chamber (o).
The brass cone-cover (f) is pierced with holes numbered from 1 to 15. The holes lie immediately over the time-train and correspond to seconds of graduation. The spaces between consecutive holes are sub-divided into six parts, and countersunk at the points of division so that the fuze may be cut to sixths of a second of burning.