Improvements in Percussion Fuzes for Projectiles.
Year: 1888

page_text: Date of Application, 15th Nov., 1888
Complete Specification Left, 15th Aug., 1889-Accepted, 5th Oct.,
1889
PROVISIONAL SPECIFICATION.
Improvements in Percussion Fuzes for Projectiles.
I THOMAS ABRAHAM BAYLISS of the Ferns Pennfields near Wolverhampton in the
County of Stafford Metal Merchant and Contractor, do hereby declare the nature of
this invention to be as follows :-
The object of this invention is the construction of percussion Fuzes for use in all
kinds of shell projectiles in such a way that the construction shall enable them to be
more reliable in action and safer in transport than those ordinarily in use.
The Fuze consists principally of a metallic case screwed externally for fixing into
the projectile, a percussion cap or detonator, a Firing pin, a screwed cap, and a case
for containing the detonator.
The detonator is fixed into the head of a case similar to a central fire metallic
cartridge case and may have a blank or disc placed underneath the detonator, the
body part having one or more slots cut through it and being made preferably of a
somewhat taper form.
The Firing pin and its holder is placed within this case, its point boing some
little distance from the disc covering the detonator, the Firing pin holder or pellet
may be made with a shoulder and counter sunk end and parallel or taper sides,
so as in either case to make the reverse end to that in which the pin is fixed
somewhat larger and heavier.
The shoulder or thickened end of the holder abuts against the mouth or open end of
the detonator holder or case.
The whole of these parts are then placed within the outside body the screwed cap
covering them this screwed cap has one or more holes to allow of the flash passing
into the shell.
On the fired projectile coming in contact with the object the impact starts the firing
pin forward the slit portion of the detonator holder expands to the larger diameter of
the one portion of the firing pin, holder or pellet, the pin strikes through the disc and
fires the detonator.
When desired the detonator holder or case may or may not rest on a shoulder
of the outside body or be provided with a screw thread to screw into same.
The outside body may be made in two pieces and screwed together in which case
the screwed cap may be dispensed with and one or more holes bored through a
solid top.
1000
PAYNE & TALBOT,
7, Cherry Street, Birmingham, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Percussion Fuzes for Projectiles.
I THOMAS ABRAHAM BAYLISS of the Ferns Pennfields near Wolverhampton in the
county of Stafford Metal Merchant and contractor, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:—
The object of this invention is the construction of Percussion Fuzes for use in all
kinds of cartridges and shell projectiles in such a way that the construction shall
enable them to be more reliable in action and safer in transport than those ordinary
in use.
The fuze consists principally of a metallic case screwed externally for fixing into

page_text: the shell or other projectile, a percussion cap or detonator, a firing pin and holder a
screwed cap or lid and an inner case for containing the detonator and the firing pin
and its holder.
Referring to the accompanying drawings and to the letters and figures marked thereon
in which similar letters of reference relate to similar parts.
Fig. 1 shews a section of one form of my improved fuze case.
Fig. 2 shews a sectional Elevation of the same Fuze with the different parts
contained therein and shewing top view of lid or cap.
Fig. 3 an Elevation of Fuze.
Fig. 4 shews inner metallic case with detonator chamber in section.
Fig. 5 firing pin and holder in section.
Fig. 6 firing pin and holder with case over it in sectional Elevation, and shewing
detonator in position in chamber.
Fig. 7. Detonator in section, (another form).
Fig. 8. side view of one kind of lid or cap.
Fig. 9. the butt end of the fuze case.
Figs. 10 to 13 shew several forms of outer case and lids, or caps (A). Fig. 1 is the
outer metallic case to contain the several parts and is screwed externally for the
purpose of screwing into the cartridge shell or other projectile and internally as
at (B) for the lid cap or covering (C) to screw into or onto.
(a) Fig. 5 is the firing pin screwed or otherwiso suitably fixed in the firing pin
holder (6) this firing pin holder is shouldered or countersunk at its bottom or butt
end, a metallic case (c) Fig. 4 similar to a central fire cartridge case then covers the
firing pin and holder the bottom edge of which case rests on the shoulder or thickened
butt end of the firing pin holder as at (d) this case may have one or more vertical slots
pierced through as at (e) Fig. 2 and may be made either straight or any desired form
but preferably taper.
At the top end of this inner metallic case is an outer projection or collar (f),
running round the case as seen in Figs. 2, 4, 6 which may be screwed on its
outside if desired as seen in Fig. 6 for the purpose of screwing it into the outer
metallic case or the collar may be plain. Placed within the upper portion of this inner
case (c) and in the detonator chamber (c¹) is a metal disc (9) having a hole in its
centre, this disc separates the firing pin and holder from immediate contact with the
percussion cap or detonator (h) this disc is fixed some little distance from the point of
the firing pin, on account of the firing pin holder having a shoulder which the
detonator holder rests on, above the disc is the percussion cap or detonator (h) as seen
in Fig. 6 the edges of the inner case (c) are turned over at the top to form a lip (i) to
keep the detonator in position.
When desired the detonator holder or
innor side of the outer case or may be provided with a screw thread to screw into
case may rest on a shoulder on the
same or may be allowed to move freely.
The different parts being arranged in their several positions the whole are placed
within the outer case as seen in Fig. 2. and the lid (c) is screwed on this lid cap or
covering (c) has one or more holes bored through to allow of the flash from the cap or
detonator passing into the shell or projectile.
On the fired projectile coming into contact with the objects the impact starts the
firing pin (a) forward the slit or slotted portion of the inner case (c) expands to
the larger diameter of the butt end (d) of the firing pin holder (6) the firing pin (a)
strikes through the disc (9) and fires the detonator (h) the flash from the detonator
passing through the perforations in the lid cap or covering of the outer case explodes
the cartridge shell or other projectile.
Referring to Figs. 10 to 12 it will be seen that the case is similar in form but the
lid cap or covering is screwed on somewhat differently. Fig. 12 shewing the case
divided at about its centre and screwed together.
Fig. 13 is of a different form having a screw shaped head for screwing the fuze
into the cartridge, shell or projectile the cap or lid may be as in the other Figs. all of
which caps or lids are perforated at their top ends.

page_text: I wish it to be understood that I do not confine myself to the precise details
herein contained as they may be somewhat varied.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is
Firstly. The improvements in Percussion Fuzes for quick firing cartridges or other
Ammunition, substantially as herein set forth.
Secondly. I claim making the body of the case of the Fuze in two halves and
screwing same together substantially as herein shewn and described.
Thirdly. I claim Perforating the lid cap, or covering of the fuze in manner
substantially as set for and described.
Lastly. I claim the peculiar formation of the Fuze case as shown in Fig. 13
substantially in manner as herein set forth and described.
A
1000
EDWARD J. PAYNE & SON,
104, Colmore Row, Birmingham, Agents for the Applicant.