KSGINEKRISU AND MKCHASWa. Jj 



Just Out. Jn Cr<nun 8rv, Handsome Cloth. With Numeroui 



Jlluitrationt. 



EMERY GRINDING MACHINERY. 



A Text-Book uf Workshop Practice in General Tool Grinding, 



and the Design, Construction, and Application 



of the Machines Employed. 



BY 



R. B. HODGSON, A.M.Inst.Mech.E., 



Author of " Machines and Tools Employed in the Working of Sheet Mel^k." 



ISTKODUCTION. — Tool Grinding. — Emery Wheels. — Mounting Emer)- Wheels. 

 — Emery Rings and Cylinders. — Conditions to Ensure Efficient \N'orking. — 

 Leading Types of Machines.— Concave and Convex Grinding. — Cup and Cone 

 Machines. — Multiple Gri- '— - •■-•••• i. ..f^gi ;^J^^ Cutter Grinding 

 Machint-s. — W'.ud Univer — Tool Grinding. — Lathe 



Centre Grinder. — Polishing. — iNUEX. 



Fifth Edition, folio, strongly half-bound, ai/. 



TRxVVEKSE TA15LES: 



Computed to Four Places of Decimals for every Minut« 

 of Angle up to 100 of Distance. 



For the use of Surveyors and Engineers. 



BY 



RICHARD LLOYD GURDEN, 



Authorised Surveyor for the (.joTcmments of New South Wnle* and 



Victoria. 



o • 



fSt^Ash^ iviih the C*ncurren;e 0/ th* Sumytrs-Gfurx^ (or Nni Scutk 



li'ojes and l''uti>riA. 



" I'hoM who hmvc cipanance 111 cuiit Si*rrv-wukK will bot know bow t. appiaaAi* 

 (he <uiorni.>ui unotint ol labour represented by thu vaiuabie book. T^c c rnpuLati tu 

 «na)>le chc aaar to ascertain the sinei and cosinei for a duLance of twelve iiiu-> to mt in 

 kalf A.1 inch, and ihis >v RKrmir.NO tu ai'T (>»■ TAaua. in place ol Otc u-..it Kifirm 

 Minute conputalioiis r«i]uireu. Ttus alone is evidence of the asaulatic« wkic' the Tablet 

 «B*<.rc to every user, and as every Surveyor in aciiva practice has lell the «Ant of tuch 

 «Mi>taiice raw knowing or tiikik rt bucation witL kbsiain withoit tmbm.' 



LONDON : CHARLES GRIFFIN 4 CO.. LIMITED, EXETER STREET. STRAND. 



