(8) Until a breach by me of this agreement, or the occurrence of
any other event terminating the same and entitling you to the
immediate possession of the machine I am to be entitled at any
time during the hiring to purchase the machine by paying to you
the difference between the amount I have actually paid and the sum
of £84 15s. for which amount you are to give me the option of
purchasing the machine and such option may be exercised by my
paying the said promissory notes as they respectively become due,
or if my option be exercised during the currency of any of the promis-
sory notes the amount of the notes shall not be taken into account,
but I shall pay the said price, deducting only any payments then
actually made, and you shall return to me all promissory notes not
then due. (9) Clause 8 hereof is only inserted so as to fix the price
at which I may purchase the said machine if I desire to do so, and
shall not unless and until acted upon give me any property in or
right to ownership whatever over the said machine, and I acknowledge
that I will hold the machine solely as your bailee and shall not have
any property or interest as purchaser in the machine until I have
paid for it the whole of the said price in exercise of the option hereby
given. . . . (15). . . In this agreement 'I' is to be read as
'we' or 'it' if the context so requires." The instalment of hire
for the period terminating on Ist February 1930 had been duly
paid by the applicants.