Improvements in Drop Down Small Arms.
Year: 1893

page_text: Date of Application, 17th Mar., 1893
Complete Specification Left, 21st Mar., 1893-Accepted, 29th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Drop Down Small Arms.
I, ARTHUR HERBERT ROYLANCE of Haworths Buildings 5 Cross Street
Manchester Mechanical Engineer do hereby declare the nature of this invention to
be as follows:-
This invention relates to connecting the barrels of double barrels breech loading
fire arms to the projections or lugs on their under side which secure them to the
breech block.
1 his propose to effect in the following manner. 1 make a metal sleeve large
enough to encircle both barrels & also large enough to form the lugs or projections
I bore the sleeve
which are the usual connections between barrels & breech block.
out to take either the barrels separately or together & so secure them with the
sleeve which encircles the barrels at the breech end.
My invention is intended to supersede the system of brazing the barrels of double
barrel guns together at the breech end & also the brazing of the barrels to the
barrels lumps or projections which secure them to the breech block.
The sleeve through which the barrels pass may either be shrunk on to them or
secured by collars which may be either formed on the sleeve or on the barrels, or
on both, & by other suitable methods.
The sleeve may form part of the necessary thickening of the barrels at the
breech end & may be placed on under tension in order to take a share of the
strain produced on the barrels when discharged.
The sleeve may also have a separate lug formed on it to work in a slot on
the top part of the beach block this lag commonly known as a dolls lical or other
device for the same purpose.
101
C 15
1 1002
A. H. ROYLANCE.
COMPLETE SPECIFICATION.
Improvements in Drop Down Small Arms.
I ARTHUR HERBERT ROYLANCE of Haworths Buildings 5 Cross Street
Manchester Mechanical Engineer 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 :—
This invention relates to connecting the barrels of double barrel breech loading
fire arms to the projections or lugs which secure them to the breech block & also
securing the barrels in position as regards each other. This I propose to effect in
the following manner. I make a metal sleeve A. Figures 1. 2. 3. 4 large enough to
encircle both barrels & also large enough to form the lugs or projections B
Figures 1-3 which connect the barrels to the breech block. I bore the sleeve A
out to take the barrels either separately or together that is the barrels may lic
together with their outsides touching each other, or the sleeve may be bored out so
that the barrels may not touch each other, but may lie any distance apart & so
secure them in position by the sleeve A, Figures 1. 2. 3. 4, which encircles them
and of which the following is a description.
Figure 1 represents a section of the sleeve with lumps.
Figure 2 represents a sectional plan of sleeve.
Figure 3 is an end view showing the sleeve as it would appear when viewed from

page_text: Figure 4 is a plan of the sleeve, showing the extended rib formed out of one
piece of metal with the sleeve.
This extended rib may take many forms at (and is commonly known as the
dolls head and is for the purpose of securing the sleeve with the breech block.
My invention is intended to supersede the system of brazing the barrels of double
barrel guns together at the breech end and also the brazing of the barrels to the
lugs or projections which secure them to the breech block.
The Sleeve A. Figures 1. 2. 3. 4, in which the barrels are inserted, may form
part of the necessary thickening or strengthening which is required at the breech
end of the gun & may be placed on under tension, that is shrunk on, in order to
take a share of the circumferential strain produced on the barrel when discharged,
and also to take the strain produced in a line parallel to the axis of the barrel.
may secure the sleeve A to the barrels with or without the tension produced by
the sleeve being shrunk on, or I may secure the sleeve by collars either formed on
the sleeve or on the barrels or on both.
I may bore the sleeve A out with an increasing or diminishing diameter of hores
either towards the breach or towards the muzzle of the inserted barrels, or 1 miny
secure the sleeve A to the barrels by any combination of the above methods.
may make the sleeve A long enough to encircle the whole or any portion of
both barrels in their length.
The sleeve A may also have a separate lug ('formed on it to work in a slot in
the top part of the breech block, this lug (bring commonly known as the dolls
head for the same purpose of securing the barrels to the breech block.
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 1
claim is
A metal sleeve A in which the barrels of breech loading fire arms with double
barrels are inserted either separately or together and on which sleeve are formed
the projections or lugs that secure it to the breech block the whole sleeve and
lumps to form one piece of metal as hereinbefore described and for the purpose
named.
Dated 2ch day of March 1985.
A. H. ROYLANCE.