Kingdom.]

Class 6.—MANUFACTURING- MACHINES AND TOOLS.

North Areas A. B. 10 to 31; C. D. E. 1 to 10, & 19 to 33 ; G. H. 25, 26.

287

Fairbairn’s Patent Riveting Machine. Plan.

[The invention of the riveting machine originated ina turn-out of the boiler-makers in the employ of thee xhibitor about fifteen years ago. On that occasion theat tempt was made to rivet two plates together by Corn -Passing the red-hot rivets in the ordinary punching-Press. The success of this experiment immediately led toae construction of the original machine, in which theMoveable die was forced upon the rivet by a powerfulever, acted upon by a cam. A short experience provedhe original machine inadequate to the numerous require-ments of the boiler-maker’s trade, and the present form^therefore adopted abput eight years since.

^ . e large stem, A, is made of malleable iron, anduving an j ron strap, BB, screwed round the base, ithders the whole perfectly safe in the case of the diesdoming i n contact with a cold rivet, or any other hardstance, during the process. Its construction alsoow s t jj e W01 .p man t0 r ; vet a ngle iron along the edges,

Q to finish the corners of boilers, tanks, and cisterns ;r"^ being now m ade 4 feet 6 inches high, it

hers the machine more extensive in its application,allows of its riveting the fire-box of a locomotivei er °r any other work within the given depth,sl'ri a<i<lition t0 these parts, it has a broad moving0 ,[ e ’ C> in which are three dies corresponding with^aers i n the wrought-iron stem. By using the centrefj 6 every description of flat and circular work can bet ^ ete d, and by selecting those on the sides it will rivetgjjj cor uers, and thus complete vessels of almost every^ a Pe. This machine is in a portable form, and can be<•- Vea 011 rails, with care, to suit the article suspendedm the shears.

rar' m Mtroduction of the knee-joint gives to the dies aat e Motion, and causes the greatest force to be exertedthe fi e .P r ?P er time, viz., at the closing of the joint andIn the head of the rivet.

j a °ther respects the machine operates as before, effect-an almost instantaneous pressure what is performedMacL ° rd “ ai 7 Mode by a long series of impacts. Therivets^f d3 [ >is * u hrmest manner, and completes eight

°f x ln ch diameter in a minute, with the attendancetb e ® en aud two boys to the plates and rivets; whereas

°ne ^ t" 8 ® 6 work that can be done by two riveters, withhou r . th^ er 0n ’ ,, aud a ' s 40 I'iuch rivets perPropoVt' 6 quantit y in the two cases being in the

saving- ^ ^ t0 or as 4 *° 1^, exclusive of the

l°com 0 ?- ° ne “ an ’ s labour. The cylinder of an ordinary•hamet 1Ve " en SMe boiler, 8 feet 6 inches long, and 3 feetby the^’ CaU m ye ted and the plates fitted completelysame w m^bln® in four hours; whilst to execute thetwenty 'b ^ hand would require, with an extra man,hkewise °f TS ' work produced by the machine is

Manner - °ti. a s . u P ei a° r kind to that made in the ordinary’ e r i ye ts being found stronger, and the boilers

more free from leakage, and more perfect in everyrespect. The riveting is done without noise ; and thus isalmost entirely removed the constant deafening clamourof the boiler-maker’s hammer.]

201 Whitworth & Co., Manchester — Manufacturers.

Self-acting foot lathe, fig. 1, with motions for sliding,screwing, and surfacing, including double-geared head-stocks, conical steel mandril and bearings, case-hardened,compound slide-rest, with quick hand traverse. Guidescrew, with disengaging nut, and 24 change wheels forscrew cutting. Anti-friction treadle motion, crank andspeed pulley for band, with equal tension. Hand-restwith eccentric lock, two-face plates, Clement’s driver,drill, bell, and cup chucks.

Whitworth’s Self-acting Foot Lathe.

This lathe is intended for amateur use, and exhibits acomplete sliding, screwing, surfacing, and boring lathe.Ornamental chucks can be applied to this as to otherlathes.

Patent self-acting duplex lathe, fig. 2, with two cuttingtools, for sliding, screwing, and surfacing, having double-

Fig. 2.

t js£Sk_ii§sL'^v

Whitworth’s Patent Self-acting Duplex I.athc