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Farm Mechanics 
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Bicycle Grindstone. 
I HAVE an old bicycle, and wish to 
set it up. so I can put a small grind¬ 
stone on it and sit on the saddle, 
work my feet on the pedals and sharpen 
small tools. I have seen the drawing how 
to do it a few years back, but have for¬ 
gotten how to start it. Will you advise 
me? j. F. s. 
L’Anse, Mich. 
A discarded bicycle can be made to do 
service as a foot power tool grinder, pro¬ 
vided that the bearings of the crank and 
rear wheel, together with the chain, are 
in good working order. The rear tire, 
ward to get the right motion at the grind¬ 
er. The belt for the grinder passes up 
through holes made in the top board. The 
location of these holes can be found by 
means of a string stretched up tightly in 
position or by using a straight edge laid 
from circumference to circumference of 
the wheels, bearing in mind that a cross 
bolt is to be used and that it will pass 
from one side of one pulley to the opposite 
side of the other. Each particular case 
will have to be worked out separately be¬ 
cause of different bicycles, different grin¬ 
der l eads, etc., but with the drawing and 
Diagram of the Bicycle Grindstone. 
front wheel, handle bars and seat post 
are removed, and a smooth surface pre¬ 
pared for the belt, which will run over 
the rear wheel, by winding the inside of 
the rim with twine or tire tape. A frame 
is made to support the grinder and hold 
the bicycle upright by clamping a nar¬ 
row hardwood board along the top bar of 
the frame by means of the clamps shown 
at (A) (A). The board, between these 
two clips, should be shaved down narrow 
so as not to interfere with the operator’s 
legs. 
The saddle is supported by means of 
two blocks (B) (B) between which is 
fastened a piece of gaspipe or an iron 
rod of the proper size to take the clamp 
of the saddle. This permits of some ad¬ 
justment of the saddle, front or back, to 
suit the convenience of the person using 
the grinder. The pipe is kept from turn¬ 
ing in the blocks by means of small bolts 
or spikes put down through holes drilled 
in the ends. The pipe is supported by 
being placed in holes of the right size 
bored into the blocks (B) (B). The end 
1 f the board carrying the grinder is sup- 
1 ' i ted by an upright on either side of the 
machine, one of which is shown at (C). 
These uprights are fastened to the bicycle 
frame by clips, as shown at (D) and 
(E), the one at (E) also holding the up¬ 
per end of a brace that exteuds ou‘ 
toward the end of a foot piece that is 
bolted across the end of the sill (G). The 
moss piece is made of sufficient length to 
hold the machine upright. The sill is 
made from a piece of two-inch plank of 
the proper width to receive the bicycle 
frame used. (II) is a post fastened to 
the end of this sill to carry the forks of 
the bicycle. It is fastened by means of 
a machine bolt, the bolt passing up 
through the sill and into the end of the 
post. The nut is mortised into the side 
of the post and the whole tightened up 
by turning the bolt with a wrench, the 
bolt having a square or hexagonal head. 
A washer is used under both the head and 
nut. 
The forks are fastened to the top of 
the post by means of a bolt of the proper 
length and size and a brace fastened in 
to stiflen the post as shown. A block is 
bolted under this end of the sill to raise 
it to the same height that the other end is 
raised by the cross piece. The rear cross 
piece being long prevents the machine 
i rom tipping over and with this block in 
front provides a three point support that 
will cause the machine to stand solid even 
on an uneven floor, the same as a three- 
legged milking stool. A cross belt will have 
to be run or the machine pedaled back¬ 
general directions given no one should 
have difficulty in fitting them to his con¬ 
ditions and working out the details for 
himself. Robert ii. smith 
Precipitating Sediment in Water. 
W E have a large out-door cistern, fed 
from slate roof. Cistern cement 
lined, and in good condition. Late¬ 
ly, when water is pumped we get a fine 
“sediment” that does not readily precipi¬ 
tate. Bottom inlet valve of pump pipe 
is 1(1 inches from bottom of cistern. 
There is a cement works two miles away 
and some cement deposit in gutters, hut 
the sediment in water seems too “fluffy” 
for cement dust, which is heavy. Of 
course we can use a filter, but is there no 
way of precipitating this sediment in 
cistern ? w. c. P. 
Hudson, N. Y. 
I do not know of any practicable meth¬ 
od of precipitating such a sediment as 
you speak of in soft water, though if you 
wish to add a little milk of lime to the 
water in the cistern it is possible that 
the much-used alum treatment might be 
efficacious. This is accomplished by the 
addition of alum in the proportion of from 
one-lialf to one grain to the gallon of 
water in the cistern. In the presence of 
lime this alum forms a gelatinous pre¬ 
cipitate which carries down organic mat¬ 
ter which is in suspension in the water 
with it. This method of purifying water 
is used alone and in connection with fil¬ 
tration to render impure water fit for 
domestic use; whether it would solve 
your problem I am unable to say; it 
could easily be tried. M. B. D. 
Getting Machinery in Shape. 
A T this time of year many farmers are 
going over their machinery, getting 
it in shape for the coming season’s 
work which saves valuable time later. 
For cleaning out gummed and clogged 
oil holes a long slender screw is far 
ahead of a nail or wire. A few turns 
runs it to the bottom of the hole and in 
withdrawing it the threads bring out the 
dirt. In removing broken and battered 
mower sections it is not uncommon to 
find a man digging at the rivet heads 
with cold chisel and punch. It is much 
quicker and easier to rest the bar on the 
anvil or its substitute—the mower wheel 
if in the field—and strike the back of 
the knife a few taps with the hammer. 
The rivets are soft and the steel knife 
shears them off. PAUL J. daily. 
Bradford Co., Pa. 
Small Son: “I say, dad. what’s the 
difference between an elephant and a 
letter-box?” Father, thinking it was one 
of the usual nonsensical riddles: “I don’t 
know, I’m sure!” Small Son: “Well, 
you’d be a nice one to send to post a 
letter! P’haps that’s why you didn’t post 
the one mother gave you yesterday!”— 
Melbourne Leader. 
Know the Exact Weight 
of the Stock You Sell! 
WHY accept the weights of 
others when anything less than 
full weight is certain to mean 
money out of your pocket? 
The only way to be absolutely sure that you 
are getting exactly what you are entitled to 
is to do the weighing yourself. 
As a matter of good business, get a scale without 
delay. But, to be sure of thorough dependability 
and lasting satisfaction, make certain it is a 
Fairbanks Scale. 
The New 
FAIRBANKS 
PORTABLE 
FARM SCALE 
sells at a moderate price. Has extra large platform; 
large faced wheels; new arrow point beam. It is 
especially designed for farm use and measures up 
in every detail to the high standard of quality 
maintained by The Fairbanks Company for more 
than three quarters of a century. 
1 
Every part is guaranteed forever — 
and will be replaced at any time 
free of charge , if found defective. 
Ask your dealer—and write us for 
illustrated descriptive folder. 
Capacity 
1,000 lbs. 
The Fairbanks 
Company 
416 Broome St. 
New York City 
