IMPROVEMENTS IN INJECTORS
Year: 1885

page_text: I JOHN FLETCHER Brass Founder Borough Brass Works Ashton under Lyne in
the County of Lancaster, do hereby declare the nature of my invention for
IMPROVEMENTS IN INJECTORS and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement:—
My invention consists of the addition of a joint to ordinary injectors between
the combining, and mixing or delivery nozzles or cones of injectors, such joint being
accessible on the outside or body parts of injectors, without having to take off any
casings, such joints can be applied to any existing styles of injectors. The object of
the joint is that there is speedy access to the internal cones; by unscrewing or
disconnecting the aforesaid joint the delivery portion of the injector can be taken
out and examined, whilst the combining nozzle or cone can be cleaned and any
objectionable accumulation removed.
To make my invention and its objects more clearly understood I have completed
annexed drawings.
Fig. 1 is a longitudinal section and fig. 2 is an outside view of a suitable injector
both fitted with the joint which I claim.
I have drawn only a nonlifting injector as my invention applies adding the
aforesaid accessible joint to the combining, and mixing or delivery nozzles or cones
which are to be found in almost all classes of injectors lifting or non lifting.
Fig. 1 & 2.-A is an injector casing and cone the lower part being the combining
cone, on the end of body or cone part A I slip a screwed cap B. to the end of A
also I secure a ring C, at the extreme end of part A or combining nozzle I have a
coned bearing turned and fitted to suit a corresponding coned end in part D.
D being the delivery and mixing nozzle part of the injector the upper end of
part D is coned and fitted out as just described suitable to part A and part D is also
screwed suitable to cap B so that when cap B is screwed tightly down on D until
the two faces A & D meet a tight and secure joint is formed, or by unscrewing
cap B the two cones or nozzles combining and delivery marked respectively A and Ď
become disconnected.
It must be observed that the connection described is simply an ordinary union
joint.
I do not claim any kind of joint, which may be in some instances the ordinary
screwed joint, union joint as shown in drawing or it may be an ordinary flanged
joint with studs and nuts or a bayonet joint may be adopted.

page_text: I have drawn the type of injector and joint which I consider the most suitable
to show the utility of my invention.
I am aware there are many injectors made with a connecting joint between the
cones of combining and mixing or delivery nozzles, but such joints or connections
are never accessible from the outside being always inserted inside another body
part or casing.
Having now particularly described and ascertained the nature of my inven-
tion, and in what manner the same is to be performed I declare that what
I claim is
The arrangement of an injector with a joint between the combining nozzle or
cone (A) and mixing cone or delivery part (D) of an injector such joint being so
constructed that the cones or nozzles and body parts, are seperated or connected
at the same time by one joint, and are accessible that they may be connected or
disconnected on the aforesaid outside body parts of injectors.