Improvements in Clips for Attaching Inflators to Bicycles and the like.
Year: 1897

page_text: Date of Application, 11th Sept., 1897
Complete Specification Left, 11th June, 1898-Accepted, 20th Aug., 1898
Improvements in Clips for Attaching Inflators to Bicycles and
the like.
We; HORACE WALTER DOVER, Engineer, and PICKERING PHIPPS, Gentleman,
both of The Dorman Engineering Company, Mayorhold, Northampton, do' hereby
declare the nature of this invention to be as follows:-
This invention relates to spring clips for attaching inflators and other articles
to the frames of bicycles and the like and is designed as an improvement upon the
spring steel clips lined with xylonite for which Letters Patent No. 3058 of 1895
have already been granted.
According to the present invention the spring clips are composed entirely of
celluloid, xylonite, or the like material, each clip being in one piece and not in
two similar halves joined together as heretofore, a number of such clips being pre-
ferably formed together as a bar, from a mass of the "unseasoned material by
forcible extrusion of the latter (whilst in a plastic state from being subjected to
heat) through a die of the intended form, the individual clips being subsequently
cut off from the bar whose cross-section being identical with that of the clips the
latter require no further treatment beyond a slight trimming of the cut edges.
The cross-sectional form of the clips (and therefore of the bar of material from
which they are cit) would be substantially that of the figure 8 with open ends,
as shewn in the drawings accompanying the patent above referred to, but where
(as in the case of an inflator clip) extra strength is required, the two pairs of jaws
instead of being juxtaposed directly back to back might be formed with a solid
block (or a hollow or cellular chamber) of the material interposed between them,
whereby the unsupported length of the jaws would be reduced. A further advan-
tage resulting from this last mentioned construction would be that the inflator
would be held by the clip at a slightly greater distance from the cycle frame than
heretofore.
Clips formed as herein described from "unseasoned". celluloid, xylonite, or the
like material, would usually possess of themselves sufficient strength and elasticity,
but if preferred the jaws of the clips might in some cases be reinforced by means
of steel springs rivetted or otherwise applied externally at either side although it
is to be understood that such springs are merely subsidiary and employed as an
additional safeguard only.
7,17
"
The clips, instead of being formed several, together in a bar as above described,
may be made separately by forcing the material in a plastic and "unseasoned
state into a mould of suitable form!

page_text: COMPLETE SPECIFICATION.
Improvements in Clips for Attaching Inflators to Bicycles and
the like.
We, HORACE WALTER DOVER, Engineer, and PICKERING PHIPPS, Gentleman,
both of The Dorman Engineering Company; Mayorhold, Northampton, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed to be particularly described and ascertained in and by the following
statement:—
This invention relates to spring clips for attaching inflators to the frames of
bicycles and the like and the invention has for its object to take advantage of the
natural tendency of celluloid which has been brought to a particular form by
being moulded in the "unseasoned" condition to resume that form should it
become overstrained or misshapen by use and it has also for its object to produce
a clip which is cheaper and more durable and efficient than the spring steel clips
lined with xylonite for which Letters Patent No. 3058 of 1895 were granted.
According to the present invention, the spring clips are composed of one piece
of celluloid, xylonite, or the like material, brought to the intended form by forcible
extrusion of the mass of the "unseasoned" material (whilst rendered plastic by
heat) through the die of a squirting" or "stuffing" machine, the material being
extruded through the die in the form of a long bar of a section corresponding to
the intended form of the clips and the bar being then seasoned by storing and
subsequently cut up by sawing into short lengths to form clips which require no
further treatment beyond a slight trimming or rounding off of the arrises at the
cut ends.
In order to ensure adequate strength of the clips the form of the die and conse-
quently the cross-sectional form of the bar and of the clips into which it is cut,
would be substantially that represented in Figure 1 of the accompanying drawing
which shews on an enlarged scale and in sectional end view the configuration of
the clip of which Figure 2 is a side view, the clip being represented as reinforced
by steel springs.
The two pairs of spring jaws A B instead of being in two separate pieces bent
to shape and rivetted or otherwise secured together back to back as in the said
previous patent, are formed in one with each other and with an intermediate por-
tion which may either be solid or be hollowed as shewn, the sides b of which unite
and merge with the sides of the spring jaws so as to brace and stiffen them.
Clips formed as herein described by extrusion of the "unseasoned material
through a die and seasoning after moulding, would usually possess sufficient
strength and elasticity for their intended purpose, but if preferred the jaws of
the clips might in some cases be reinforced by means of steel springs such as C
tempered to a form corresponding to the lateral configuration of the clip to which
they are applied externally at either side and secured by a rivet c traversing the
intermediate portion but it is to be understood that such springs are merely sub-
sidiary and their employment as an additional safeguard only, is optional.
The distance between the jaws A B being slightly greater than usual owing to
the interposition of the intermediate portion, has the advantage that the projecting
flanges at the ends of the inflator are less likely to come in contact with the frame
of the machine on which the inflator is carried.
Having now particularly described and ascertained the nature of the said in-
vention and in what manner the same is to be performed we declare that what
we claim is:-
-
1. The manufactur
- 1

page_text: trusion through the die of a "squirting" or "stuffing" machine of the plastic
unseasoned material in a long length of bar of a section corresponding to the
intended form of the clip, then seasoning the bar and cutting it up into short
lengths to form clips substantially as specified.
2. The combination with a clip formed of celluloid or the like moulded in one
piece substantially of the form and in the manner described, of reinforcing springs
corresponding in form to the configuration of the clip, said springs being applied
at opposite sides thereof and secured by transverse rivets substantially as specified.
Dated this 11 day of June 1898.
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.