480 



THE INDIA RUBBER WORLD 



April 1, 1921 



laps about evenly over the repair rubber and the sole beneath 

 it. The articles are then released from the vise and, clamped in 

 4iny suitable device, are placed in a vulcanizing apparatus, the 

 eflfect obtained with the 

 lead-former device being 

 a repair rubber sole with 

 a neatly turned and 

 rolled edge much like 

 that of new goods. The 

 method for making 

 former blanks for heels 

 varies but little from 

 that used for soles. 



This to a degree has 

 been superseded by pro- 

 viding the lead molds 

 complete to shoe repair 

 men. To this end a full 

 set of aluminum molds 

 in which the lead molds 

 are cast, can be ob- 

 tained. These, of course, 

 have a better finish and save a lot of bother for the user. 



.Arthur Mold-M.\kinc Press 



ARTHUR PLURAL-PART MOLD VULCANIZER 



One of the newest and most complete rubber boot and shoe 

 repair vulcanizers. adapted for practically all classes of work 

 and which can withstand hard service, is the Arthur self-con- 

 tained, steam-heated, plural-part mold apparatus. The device 

 consists of a hollow, heavy standard in which liquid fuel may be 



stored to be 

 supplied by 

 compressed 

 air to the 

 burner be- 

 ne a th the 

 boiler fur- 

 nishing the 

 steam to heat 

 the hollow 

 vulcanizing 

 members. A 

 large funnel 

 over the 

 boiler is used 

 for replen- 

 ishing it with 

 water, and a 

 small funnel 

 over the 

 standard is 

 used for con- 

 veying liquid 

 fuel to its 

 reservoir. 



A dome, 

 or bo.\-like 

 compart- 

 tnent, at the top of the standard and piped to the steam boiler, 

 carries one or inore hollow, revolvable, and adjustable boot forms 

 or horns on one side and a soling plate or table on the other side. 

 Other openings can be provided on the dome for other repair 

 work. A unique mode of applying pressure while vulcanizing, 

 is provided by a pair of parallel, transversely-joined arms project- 

 ing from the standard, and which in turn carry "goose-necked" 

 ■curved, revolvable, adjustable devices which fit over the shoe 

 forms and against which suitable pressure can he applied by 

 tightening, with a pawl and ratchet, tension hands fastened on the 

 itiner side of the hook-shaped holders. 



Arthur Plural P.art Mold Vulcanizer 



Sole repair is effected on a hollow curing table with a concave 

 surface fastened to the dome above the standard but having its 

 steam supplied directly from the boiler. A metal leg, last- 

 shaped to project into the toe of a boot, is placed in the latter, 

 the upper end of last passing through a member which contains a 

 set-screw acting on tension bands fastened at their lower ends 

 in the molded foot-plate on which the boot rests during a sole 

 cure, and with which ample pressure is obtained. 



A novelty, too, is a set of superimposed, sprinj^y plates of grad- 

 uated size which can be fastened to the base of the last and which 

 plates under tension give greater and more uniform internal 

 pressure resistance on the sole of the boot. For smaller foot- 

 wear, fewer plates are used. The apparatus can also be braced 

 against a wall with a lateral arm extending from the dome. 

 THE FERGUSON 

 VULCANIZER 



One of the sim- 

 plest of shoe repair 

 vulcanizers is the 

 Ferguson. It is 

 simply a vulcaniz- 

 ing mold and is 



adapted particular- ^ ^^ 



, , ,. The Ferguson Vulcanizer 



ly for rcsohng, 



as the steam chamber runs under the sole portion. The foot 

 of the boot or shoe is filled by a sack holding sand while 

 a top plate, cold, acts as a clamp and by means of a screw e.xerts 

 sufficient pressure to secure proper molding and adherence. Not 

 to criticise the appliance nor to prove the writer's inventive 

 ability, but for the sake of light, we ask, Why not an air bag for 

 the inside instead of a sand bag? 



BAST SHOE VULCANIZING DEVICE 

 A simple and low-cost rubber boot and shoe vulcanizing device 

 which dispenses with steam is the Bast vulcanizer. It has some 

 ingenious features that will be appreciated by repair men with 

 small shops. With it any part of a sole, heel, or upper can be 

 easily and quickly given a repair cure without other heat than is 

 afforded by gasoline. The apparatus is readily adjusted at any 

 angle so that pressure can be applied at and where needed on the 

 footwear to be mended. The device consists essentially of a jack 

 or standard carrying a boot or shoe last, the lower end of the 

 standard being pivotally adjustable to an arm which, in turn, is 

 pivotally adjustable to a clamp fast- 

 ened to a work bench. The last at 

 the top of the standard can be re- 

 volved and, by moans of a counter- 

 sunk screw in the heel, can be set at 

 any point. 



.\nothcr feature is a flat arm pivot- 



VuLCANiziNG Boot 

 Sole Repair 



Vulcanizing Kef'air on Upper Part 

 OF Boot 



ally adjustable to the lower end of the standard and carrying in 

 a slot at the farther end a revolvable, slidable, adjustable metal 

 former-block which, with a thumb-screw, can be forced against 

 footwear in vulcanizing. The heat needed for curing is obtained 

 by burning gasoline in a recess in the top of the former block, 

 which in operation must be kept right side up. Teeth in various 

 bearings insure positive clamping with the adjusting bolts. 



