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THE BI-PEDAL SICKLE 

 AND TOOL GRINDER. 



The BI-PEDAL is completely Automatic, requiring no use of the hands. 

 A whole sickle ground without fatigue. 



The high speed, 40 revolutions of the emery to one of the pedals of the 

 BI-PEDAL, grinds sickles as smoothly as when new, thus overcoming one of 

 the objections found with many slow running hand power machines. 



The power is derived the same as that of a bicycle, thut g"'v;'ng no dead 

 centers to get stopped on. 



The pressure can be instantly adjusted to light or heavy grinding for new 

 or old sickles by shifting a finely tempered steel spring. 



, The adjustment also adapts itself to grinding nicks, sharpening at the 

 drawhead, or tool grinding. 



The clamp has a movable rest to fit all kinds of sickles, and the sickle can 

 be taken out at any place, instead of sliding it out endways as in some makes. 



The BI-PEDAL is supplied with a flatfaced stone for tool grinding, which 

 supplants completely the old sand stone. 



Suitable for grinding the following 



Plow and Cultivator Shovel Points, Axes, Scythes, Knives, 

 Etc., Etc. 



In fact, any grinding, sharpening or polishing a farmer has to do. 

 Extra wheel for gumming saws can be furnished. 



Price S5.50 



TROJAN 

 EMERY 

 TOOL 

 GRINDER. 



For Grinding Any Kind 

 of Tool. 

 The cut represents 

 The Housekeeper's Friend 



Will give a keen edge 

 to all kinds of household 

 cutlery. 



Any lady can use it. 



The Farmer's Friend 



Sharpens quickly and 

 perfectly all tools from 

 an axe to a pocket knife. 



Price 3S3.00 



ELECTRIC DIAMOND 

 GRINDER. 



This machine 

 takes its name 

 from the Carborun- 

 dum or Electric 

 Diamond Stone 

 with which it is 

 equipped. This 

 wonderful cutting 

 stone is the hardest 

 substance known 

 except the genuine 

 diamond. 



Carborundum is 

 as far ahead of 

 emery as an abra- 

 sive material as 

 emery is ahead of 

 the old-fashioned 

 grindstone. 



A valuable fea- 

 ture about theElec- 

 tric Diamond 

 Grinder is the tem- 

 pered steel chain, 

 stamped out of a solid strip of steel. It is of the famous Locke 

 Steel Belt type, manufactured by the Locke Steel Belt Co., of 

 Bridgeport, Conn., who own valuable patents covering its manu- 

 facture. 



High speed is absolutely essential to a successful grinding ma- 

 chine. By means of the chain and bicycle gearing the cutting 

 stone cn the Electric Diamond attains the great speed of 4,000 

 revolutions per minute, and therein lies the great secret of its fast 

 cutting power. The Electric Diamond is built on the principle 

 that high speed is a necessity. Any abrasive wheel to cut fast 

 must run fast. Low speed wears the wheel away quick — high 

 speed cuts rapidly and wears the wheel but little. When buying 

 a grinder remember these points. They are of vital importance 

 to a successful machine. 



This machine is furnished with a jeweler's buffing wheel and 

 with it all jewelry can be kept as bright as new. 



Emery grinders whose motion is entirely gained by cogs and 

 gear wheels are very noisy to operate, hard to rotate — friction 

 always means more work. 



No machine ever put on the market can approach the Electric 

 Diamond Grinder in speed, cutting ability, ease of operation and 

 general utility. Price S3. 90. 



Challenge 

 Sickle Grinder. 



The improvement in 

 in this machine em- 

 bodies a device that 

 automatically drives 

 the emery back 

 and forth (horizon- 

 tally) over the 

 sickle (or by the 

 simple lifting of the 

 oscillator, it may 

 be controlled by 

 hand and at the will 

 of the operator), 

 while a finely tem- 

 pered steel spring 

 gives just the prop- 

 er pressure. 



Ingenious and 

 almost frictionless 

 tapeied adjusting 

 nuts are employed 

 for lifting the em- 

 ery stone from the 

 heel and point of 

 the sickle at any 

 place desired. 

 Every emery stone 

 is guaranteed 

 against being too 

 soft or crumbly. 

 The clamps for 

 holding sickle are 

 the simplest and 

 most effective ever 

 placed on an article 

 of this kind. 



The advantages 

 of the above fea- 

 tures will at once 

 be apparent to the 

 experienced. For 

 simplicity of opera- 

 tion, for workman- 

 ship, durability and strength, the Challenge Automatic Sickle and Tool Grinding 

 Machines are preeminently in the lead and winners of t rade wherever used. Price, 

 «4.00. 



