Improvements in and relating to Driving Bands for Projectiles for Quick Firing and other Guns.
Year: 1899

page_text: Date of Application, 25th Nov., 1899-Accepted, "30th Dec., 1899
COMPLETE SPECIFICATION.
:
Improvements in and relating to Driving Bands for Projectiles for
Quick Firing and other Guns.
We, THOMAS RICHARD BAYLISS and THOMAS ABRAHAM BAYLISS, both of King's
Norton, Metal Works, Lifford, near Birmingham, Manufacturers, 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;
Reference being had to the drawings hereunto annexed and to the figures and
letters shewn thereon. Similar letters of reference denote similar parts on the
figures.
gure is a plan.
Figure 4. Represents in sectional elevation the steel projectile and the copper
driving band constructed according to our improvements, (shewn to a smaller
scale).
Figure 5. Represents an elevation of the steel projectile and copper driving
band.
The object of our present invention is to provide improved means for effec-
tively lubricating the barrels of quick firing and other guns when discharging
projectiles or shells of various types immediately in front of the part known as
the copper driving band, and our arrangements consist in forming the driving
band A that surrounds the steel projectile B by tapering, chamfering or
cupping out the front inner edge C in the thickness of the metal walls of the
band A so that when the said driving band A is located in position in the
annular recess D in the walls of the projectile B, an annular chamber C¹ is
provided between the front inner edge of the driving band A and the recessed
walls of the projectile B wherein bees-wax or other lubricant is placed.
The result of this arrangement is that when the projectile is fired from the
gun the tapered front edge C of the driving band, being comparatively thin,
is compressed or pinched in and enclosed, by the passage of the projectile along
the barrel, in the act of which the lubricant is exuded all round the shell or
projectile, thus lubricating the barrel in the required place, namely imme-
diately in front of the driving band for the passage of the projectile. The
general formation of the said metal driving band, other than the tapered,
chamfered or cupped out inner edge of same, will be of the ordinary description,
provided with the exterior annular grooves or cannelures.
we claim is: -
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner, the same is to be performed, we declare that what
Firstly--In driving bands for projectiles for quick firing and other guns,
.

page_text: tapering, chamfering, or cupping out the front inner edge of the said driving
band so as to provide an annular chamber between the said inner edge of the
driving band and the annular recessed wall of the projectile for the purpose
of receiving bees-wax or other lubricant, substantially as herein described and
illustrated.
Secondly. In connection with projectiles for quick firing and other guns and
in combination therewith forming the copper driving band by tapering or cupping
out the edge of the inner wall so as to provide an annular lubricant containing
chamber as described and illustrated.
EDWD. J.. PAYNE & SON,
Warwick Chambers, 104, Colmore Row, Birmingham,
Patent Agents for the Applicants.