Year: 1897

page_text: WILLIAM JOHN BOSWORTH Major 3rd Manchester Regiment Cedar Court
Roehampton Surrey JAMES HENRY STEWARD 406 Strand London Optician 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:-
An improved sketching board or case which can be used either on the arm or
wrist to which it is fastened by a strap, or on a Bicycle or Tricycle handle bar by
means of an improved attachment. When used on the arm for the purpose of
sketching or for finding ones way by ineans of a map which is fastened on the board,
the latter is rotated so as to keep the N point on the Map always towards the North.
When used on the cycle handle the improved attachment consists of a plate
fastening by screws preferably with milled heads to the underside of sketching board.
From this plate a pin or centre is connected with a ball & socket which in turn is
fastened to a clip arrangement to pass over the handle bar; one of the clips is secured
below by a bolt and nut. The paper on which the sketch is made is wound round
rollers and passes over the board. An improved method of fixing the ends of the
paper to the rollers is by means of a lever strip passing into a saw cut opening in the
roller tube and pivoted at one end to it and at the other secured by a free running
milled collet or its equivalent as a fastening. In order that these improvements may
be better understood I append drawings as follows:-
Fig. 1. Shows the board attached to the bicycle handle bar. A A¹ being the screws
to fasten the plate B to the underside of board C. D being the pin or centre
connecting it with the ball and socket E. which can be clamped by F. G G¹ being
the clips to go over handle bar, H being the bolt and nut to fasten it. I is the
strap to go round the wrist when using it as an ordinary sketching case or board in
the field. K shows the roller, P the milled collet and Q the milled head by which
the roller is revolved.
Fig. 2 is an enlarged view of one of the rollers and shows the roller K with saw cut
or slot L and the lever M. With spring N at pivot end O to cause the lever to come
up on releasing screw collet P. which holds the lever M and with it the end of paper
in the saw cut or slot L. The rollers are revolved by milled heads Q.
Having now particularly described and ascertained the nature of our said Invention
& in what manner the same is to be performed we declare that what we claim is:
1. The improved attachment with ball & socket fittings for using a sketching
board or case on a bicycle or tricycle substantially as described and figured.
2. The improved rollers, lever strips and milled collets when used in connection
with a sketching board for securing the ends of paper to the rollers, substantially as
figured and described.

page_text: 3. A sketching board with the improved rollers and means of securing the paper to
the rollers by a lever falling into a saw cut or slot the said lever being pivoted at one
end and secured at the other by a screw collet substantially as figured and described.
4. A sketching board and cycle attachment substantially as figured and described.
Dated this Thirteenth of April 1807
W. J. BOSWORTH, MAJOR.
J. H. STEWARD.