Year: 1887

page_text: Date of Application, 23rd July, 1887
Complete Left, 20th Apr., 1888
Complete Accepted, 15th June, 1888
1 JOHN EVANS HUMPHRIS of Thame in the County of Oxford Builder do hereby
declare the nature of this invention to be as follows:-
The object of my invention is so to construct metal driving bands or cords (endless
or otherwise to be used instead of chains as driving connections to Bicycles,
Tricycles, Sewing Machines, or Machinery of any kind that may be required to be
so connected for driving purposes, in place of chains leather bands or cords now in
use, which connecting bands or cords may be made of any suitable metal or com-
binations of metals or alloys (steel preferred. The bands may be made in one two
three or more thicknesses of material after the manner of thin steel, as manufactured
for watch springs the thinner the better they then offer the less resistance strength
being secured by having several thicknesses. The gripping power may be obtained
in several ways by having notches teeth or recesses on either or both sides or edges
with holes or perforations through all the plates having linings or eyelets through
them to hold the plates together formed with hollow spring clips or hollow screw clips
made as short screw bolts and nuts solid or with recess or holes through each to suit
projections or teeth of gearing wheels or revolving bodies multiplying or otherwise
or any suitable methods applied externally or internally by spring clips, screw do or
otherwise crossing the metal bands to hold them together and thus provide grip hold,
either way so that a broken metal band can be readily removed or repaired by adding
a new plate or plates or for shifting an old plate or two over the breakage as the case
may be, or the bands may be formed of woven wire or strands of metal with eyelets
or projections worked in to suit hollows projections.&c. as before stated, endless or
with joint hook and eye or with a solid pin, keyed or split spring pin passed through
to connect eyes formed similar to an hinge joint, or cords oval round or square woven
or twisted with eylets or projections to fit suitable shaped gearing rims worked
into them.
Advantages by useing these connecting bands or cords the friction and cutting
is greatly reduced, easily repaired, cleaner and cheaper than the chains now
in use.

page_text: I JOHN EVANS HUMPHRIS of Thame, in the County of Oxford, Builder 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 my invention is to so construct driving bands for Bicycles Tricycles
or machinery of any kind to in effect provide a cheap yet superior driving band
connection to pullies than the chains and bands now in use.
For this purpose the accompanying drawings illustrate suitable methods of
construction.
Fig. 1 showing the broad face of the steel band made of any suitable width of very
thin and elastic steel cut or recessed at A A with rounded internal and external angles
& in that manner at any convenient distance apart on one, or preferably on both edges,
to receive cross spring grips, Figures 3 to 7.
Fig. 2 edgeway view of band which may be formed by one or more endless bands
placed one over the other, or in one long piece passed round pullies Fig. 8 several
times or preferably in pieces of any suitable lengths thickness or number held together
by the cross spring grips, showing two ends BB, one end CC which are easily
removed or applied for repairs of broken band, by shifting a few peices a band can be
repaired in a short time.
Fig. 3 top view of cross spring grip with springs EE open and raised to receive 2
band at A A.
Fig. 4 side view of cross spring (Grip) B edgeway in part which passes over solid
retaining hook at F (which may be made broad on either or both sides to prevent
short pinch on band particularly necessary when the the band is not the full thickness),
and fixed at end by rivet, screw, dovetail, or solid to basement bar G, the other end of 2
bar having two retaining hooks CC facing each other, the space between them may
be only sufficient in width to admit one half of split or double springs EE at the
time. These retaining hooks can be better seen by end view, Fig. 6. On the underside
of bar G is seen two studs DD projecting which are intended to pass into holes J J
formed at bottom of recesses H on rim I of pulley Fig. 8 to form grip hold, beside
avoiding weight and the necessity of having shrouding on either or both sides of said
pulley to keep band in position. For the same purposes one stud or projection,
any suitable shape may be used at middle of bar G only.
Fig. 5 top view of grip with springs EE closed thereby fixed on band at A A ready
for work.
Fig. 6 end view of retaining hooks ( C showing slot for springs EE to pass in.
Fig. 7 underside view of grip bar G with studs D D as before described.
Fig. 8 pulley side view, may be made any convenient size, showing recesses H
on rim I these may be made any distance apart to suit cross spring grips as fixed on
band.

page_text: Fig. 9 part section of Fig. S with rim I.
Fig. 10 broad face of rim I of Fig. 8 with round holes J J in bottom of recesses H
to admit studs D D, if one stud or projection be used this may be made in any suitable
shape to suit same.
One other form of driving band with pullies to suit, may be described without
drawings in the following manner, the band of one or more thicknesses of thin steel
any suitable width, having plain smooth edges, but perforated in the middle with oval
or oblong holes, that spring eylets to suit shape of same may be passed through, they
being so formed with spring catches on the two opposite sides at least, but so arranged
that the springs come not in contact with the direct action or pressure on projections
or teeth of suitable pullies, the teeth thus conveying the power and keeping the band
in position.
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
1. Forming steel driving bands of one or more thicknesses with recesses on one or
both sides to receive cross spring grips, or perforations through middle of same to
receive spring eylets substantially as and for the purpose specified.
2. Forming spring cross grips for bands to suit recesses, or eylets to suit teeth of
pullies for same substantially as and for the purposes specified.
JOHN EVANS HUMPHRIS.