A Treatise on Roll-turning for the Manufacture of IronD. Van Nostrand, 1869 - 96 páginas |
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Página 23
... inch . A greater excess is found only in the first two passes of puddle ... inches , 5 , 41 , 31 , 31 , 27 , 2§ , 2 ‡ , 2§ , 2 , and 1 inches diameter ... wide . The above reduc- tion , or draught , I would designate as an 3 23 in ...
... inch . A greater excess is found only in the first two passes of puddle ... inches , 5 , 41 , 31 , 31 , 27 , 2§ , 2 ‡ , 2§ , 2 , and 1 inches diameter ... wide . The above reduc- tion , or draught , I would designate as an 3 23 in ...
Página 29
... inches wide , for very large piles , it is often well to use a single closed flat pass , through which the bar is passed several times , while the top roll is screwed down after each passage . When , however , the passes have the same ...
... inches wide , for very large piles , it is often well to use a single closed flat pass , through which the bar is passed several times , while the top roll is screwed down after each passage . When , however , the passes have the same ...
Página 30
... inch , and in the smaller passes toto of an inch , it being taken for granted that the shape does not require any greater widening than this . Heavy and wide flat bars of 7 to 9 inches width are rolled from a pile , and in order to ...
... inch , and in the smaller passes toto of an inch , it being taken for granted that the shape does not require any greater widening than this . Heavy and wide flat bars of 7 to 9 inches width are rolled from a pile , and in order to ...
Página 31
... inches in width ; the pitch line is also shown . Five passes are used , the second of which is an edge pass . The forge hammer pre- pares the ball for the first pass , which is 7 inches wide and 2 inches deep . The reduction of the ...
... inches in width ; the pitch line is also shown . Five passes are used , the second of which is an edge pass . The forge hammer pre- pares the ball for the first pass , which is 7 inches wide and 2 inches deep . The reduction of the ...
Página 32
... inches ; and since this pass , as well as the other four , are best ... inch higher ( in order that the distance of both centre lines from the pitch line may be equal ) , otherwise the radius of the ... wide at the top ; therefore , the 32.
... inches ; and since this pass , as well as the other four , are best ... inch higher ( in order that the distance of both centre lines from the pitch line may be equal ) , otherwise the radius of the ... wide at the top ; therefore , the 32.
Otras ediciones - Ver todas
A Treatise on Roll-Turning for the Manufacture of Iron Peter Tunner,John Barnard Pearse Sin vista previa disponible - 2016 |
Términos y frases comunes
angle iron arcs arrangement AUSTRIAN INCHES beams body-fillets bottom roll Cannelure Carinthia channel bar closed passes Cloth collars construction corners cylinders described diamond passes drawing passes edge pass end-fillets Engineer ENGLISH INCHES equal fillet finishing passes finishing rolls fins flange flat bars flatting pass former Frantschach Gothic passes greater grooves guides heat height horizontal Hypsometry INCHES IN DECIMALS inches wide kaliber large rolls last pass lathe latter length Leoben Merrimack River method necessary necks notches open passes oval passes pair of rolls passes in full PASSES.-These pile pitch line Plate position puddle bar puddle rolls radius rails rectangular reduced represented in Fig roll-turning roughing passes roughing rolls round pass screws set screws shaping passes shown in Fig side Silesian mill Slitting Mill small rolls spike spindle steady rest steel Styrian thick three high top roll tyre unequal Upper Silesia vertical welding width wire rod
Pasajes populares
Página 97 - Elver, at whose expense most of the experiments were made, being willing that the public should share the benefits of the scientific operations promoted by them, consented to the publication of the first edition of this work, which contained a selection of the most important hydraulic experiments made at Lowell up to that time. In this second edition the principal hydraulic experiments made there, subsequent to 1855, have been added.
Página 97 - ... JB FRANCIS, Civil Engineer. Second edition, revised and enlarged, including many New Experiments on Gauging Water in Open Canals, and on the Flow through Submerged Orifices and Diverging Tubes. With 23 copperplates, beautifully engraved, and about 100 new pages of text. I vol., 4to.