Means and Apparatus to Facilitate Mechanical Route Sketching During the Travel of a Tricycle or like Vehicle.
Year: 1889

page_text: Date of Application 28th Dec., 1889
Complete Specification Left 8th May, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Means and Apparatus to Facilitate Mechanical Route Sketching
During the Travel of a Tricycle or like Vehicle.
I, LIONEL MARSHALL, D.A.A.G. 14 Cromwell Houses, Nightingale Road, Southsea,
Hants, Major Lancashire Fusiliers, do hereby declare the nature of this invention to
be as follows :-
The object of this invention is to construct or arrange an apparatus affixable to a
tricycle, or like vehicle, to enable a cyclist to obtain a diagram or line marking of
a road, over which he may be riding and also en route to fill in, or indicate the position
of prominent buildings such as churches, farm houses, also woods, plantations, and
other land marks. said indications being marked by the cyclist on a prepared sheet
and at the approximate distances according to the judgment of the cyclist.
The invention is chiefly intended for use by the military but is applicable for
surveying and by cyclists generally.
For the purpose of my invention, I fit a train of wheels in a casing and operate the
gear by. chain, by spring, by electrical contact, or otherwise preferably from the
driving wheel of the machine.
The Bear is in connection with a fine screw which can be moved along for drawing
a pencil point on a roll, or sheet of paper affixed on or to a table or slab, the pencil
travelling at a rate corresponding to the divisions, or other markings on the paper.
The pencil is in connection with a magnet or compass and retains its position when
set with relation to the compass for the required line sketching.
ليمن
1
D
11000
H. GARDNER,
166, Fleet Street, London,
Agent for the said Lionel Marshall, Major & D.A.A.G.
COMPLETE SPECIFICATION.
Means and Apparatus to Facilitate Mechanical Route Sketching
During the Travel of a Tricycle or like Vehicle.
I LIONEL MARSHALL, D.A.A.G. 14 Cromwell Houses, Nightingale Road, Southsea,
Hants, Lieut.-Colonel Lancashire Fusiliers do hereby declare the nature of my said
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 this invention is to construct or arrange an apparatus affixable to a
tricycle or like vehicle to enable a cyclist to obtain a diagram or line marking of a
to fill in or indicate the
road over which he may be riding and also "en route
positions of prominent buildings such as churches, farm houses, also woods,
Aplantations, and other land marks, said indications being marked by the cyclist on a
prepared sheet and at the approximate distance according to the judgement of the
cyclist.
The invention is chiefly intended for use by the military, but is applicable for
surveying and by cyclists generally.
For the purpose of my invention I fit a train of wheels in a casing and operate the
gear by chain, by spring, by electric contact or otherwise but preferably from one of
the wheels of the machine.
The gearing is in connection with a fine screw which can be moved along for
drawing a pencil point on a roll or sheet of paper affixed on or to a table or slab, the
pencil travelling at a rate corresponding to the divisions or other markings on
the paper.

page_text: The pencil may be in connection with a magnet or compass and retains its position
when set with relation to the compass for the required line sketching, or the table or
pencil can be set to the required angle by hand.
An example of one arrangement of mechanism or means for carrying my invention
into practice is shewn on the annexed drawings.
Figure 1 is an elevation of the gearing with the case or box in section, which
encloses it.
Figure 2 is an end elevation with the front of the box removed.
Figure 3 is a part perspective elevation of a tricycle with an apparatus of my
invention in position on the front or steering post, on to the handle bar of which, or a
separate bar, the apparatus is hooked and fastened at its lower part to the upright or
steering post to temporarilly fix the apparatus in position.
A is the steering rod of the machine, bicycle or tricycle, B one of the hooks by
which it is held on the handle bar C. D is the back strap for temporary attachment
of the apparatus to the steering post. E is a casing or box in which the gear is
enclosed and shielded from the entrance of dirt. This box at its upper part has
affixed to it a top F on which a table or board G is pivotted but which can be affixed
by a spring pin H. I is an ordinary Vaucauson chain engaged with the sprocket
wheel on the driving wheel at its lower part and over a sprocket wheel K at its upper
part for giving motion to the gearing within the box or case E.
The axle carrying the sprocket wheel K has a pinion L upon it and this gears into
a larger wheel M mounted loosely on another or intermediate axle supported by
bearings N. Any size sprocket wheel can be substituted for that marked K to suit
the scale to which the sketching is to be made. This wheel M is in a piece with a
sprocket wheel and a chain P thereon gears into a smaller wheel Q which rotates
another shaft R communicating motion by a toothed wheel S to the second large
wheel T having attached to it the bevil wheel U which gearing into a corresponding
wheel V gives motion by spur gear W and X the latter of which, held in a bracket Y,
and formed with an internal screw thread draws back a threaded rod Z, the outer end
of which has a hole in it and carries a vertical bar a this being set also through a
socket of a steadying bar which has a sliding motion corresponding to the threaded
rod Z. The vertical bar a has a head c carrying an axle with a small pinion d in gear
with a horizontal bar e one end of which carries a socket f for holding a pencil or
other marking instrument g, the point being over the desired portion of a divided or
scaled sheet of paper mounted upon the table G.
The pinion d and rack of the horizontal bar e enables the pencil to be set at the
desired part and the vertical bar a permits of the angle adjustment to suit the position
of the pencil so that any part of the paper within range of the width of table can be
marked by the movement of the pencil during the travel of the machine.
The apparatus shewn by the drawings is only an example of how I prefer to carry
my invention into practice but it is capable of several modifications both in the
arrangement of the parts and the method of operating it.
1. I can introduce a spring for obtaining the power, wound up like a watch spring
reducing the use of the wheel of the tricycle to working an escapement regulated
according to the desired scale.
2. Placing on the other side of tricycle and reversing gear if necessary for con-
nection with rear wheel for driving on in rear of handle; if found more convenient.
3. Moving the plane of table under fixed pencil by means similar to those employed
for pencil.
4. The alteration of scale by different proportions of any of the parts as for instance
by substituting different sized cog wheels with or without extra connecting chain
outside.
5. The use of the power derived from any of the tricycle wheels for effecting the
same object by any combination of mechanical appliances.
The manner by which my apparatus can be put into practice can be understood by
the following:
$
1. Ascertain the general direction of the road from a man or enquiry

page_text: 2. Take the sketching board off the machine (by drawing the spring bolt and
lifting).
3. Place the compass in its tray and take the board in prolongation of first forward
bearing far enough behind the machine to prevent the needle being affected.
4. Turn the board until the compass shows the length of the paper from roller to
roller to point in the general direction of the road.
5. Adjust the working meridian.
6. Mark the starting point and first forward bearing on the paper.
7. Replace the sketching board on the tricycle and revolve it until the first forward
bearing points straight ahead. This is facilitated by a sliding ruler, which, if desirable
can be fitted on a cross bar and adjusted over the sketching board.
.
8. Adjust the travelling pencil to the starting point, and clamp it by set screws at
back of ratchet wheel of arm, and at end of guiding rod in front of apparatus.
9. Mount the tricycle and go ahead.
" until a
The travelling pencil will now constantly be on the spot and a board "set
bend occurs when the board must be revolved until the new forward bearing points
straight ahead and the travelling pencil readjusted.
This new forward bearing is marked roughly by the eye if it is short or by compass
from behind the tricycle, if long enough to warrant it.
Whatever be the scale employed the pencil holder must be lifted out and the
travelling screw wound home again after every 6" of line drawn by the pencil.
The North point can be inserted at any time from the compass which may be
carried on the body to prevent injury.
The instrument could also be used at night to show the turns in the road to be
taken.
For this purpose a 1" or other ordnance map would be fixed on the board and set
at the bends of the rod by a sliding ruler.
Any luminous object held above the spot would suffice for this, or the map could be
transparent paper, with luminous paint underneath it.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
1. As a means of ascertaining and indicating the route or course travelled by a
tricycle or like vehicle, the employment of mechanism applied to and operated by
such vehicle substantially in the manner described.
2. The particular arrangement of appliances shewn on the annexed drawings and
operated by a vehicle for indicating and marking a vehicles line of travel and for
enabling objects en-route to be sketched or indicated on scale ruled paper, as
described.
The 6th day of May 1890.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Lt.-Col. L. Marshall, D.A.A.G.