The Mechanic's Text-book and Engineer's Practical Guide ...Phillips, Sampson, 1855 - 403 pages |
From inside the book
Results 1-5 of 10
Page 6
... pinions , 75 When Time must be regarded . The distance between the centres and velocities of two wheels given , to find their diameters , 76 To determine the proportion of wheels for screw- cutting by a lathe ,. Table of Change - Wheels ...
... pinions , 75 When Time must be regarded . The distance between the centres and velocities of two wheels given , to find their diameters , 76 To determine the proportion of wheels for screw- cutting by a lathe ,. Table of Change - Wheels ...
Page 67
... pinion to one of the wheel ; divide the product by the barrel's diameter in equal terms of dimensions ; and the quotient is the effective power to 1 of exertive force . Ex . Let there be a crane , the handle of which de- scribes a ...
... pinion to one of the wheel ; divide the product by the barrel's diameter in equal terms of dimensions ; and the quotient is the effective power to 1 of exertive force . Ex . Let there be a crane , the handle of which de- scribes a ...
Page 68
... pinion 11 to 1 is unavoidably compelled to be employed ; also the throw of each handle to be 16 inches ; what must be the barrel's diameter , on which the rope or chain must coil ? 16 x 2 32 inches diameter described by the handle . And ...
... pinion 11 to 1 is unavoidably compelled to be employed ; also the throw of each handle to be 16 inches ; what must be the barrel's diameter , on which the rope or chain must coil ? 16 x 2 32 inches diameter described by the handle . And ...
Page 69
... pinions , be increased to any required amount , so may the pulley and tackle be similarly aug- mented by purchase upon purchase . Two of the most useful are known by the term runner and tackle , and the second by that of Spanish burton ...
... pinions , be increased to any required amount , so may the pulley and tackle be similarly aug- mented by purchase upon purchase . Two of the most useful are known by the term runner and tackle , and the second by that of Spanish burton ...
Page 75
... pinion of 20 teeth make , for 1 of a wheel with 125 ? 125206-25 or 6 revolutions . To find the number of revolutions of the last , to one of the first , in a train of wheels and pinions . Rule . - Divide the product of all the teeth in ...
... pinion of 20 teeth make , for 1 of a wheel with 125 ? 125206-25 or 6 revolutions . To find the number of revolutions of the last , to one of the first , in a train of wheels and pinions . Rule . - Divide the product of all the teeth in ...
Contents
55 | |
59 | |
65 | |
72 | |
80 | |
81 | |
89 | |
90 | |
97 | |
103 | |
107 | |
109 | |
130 | |
137 | |
185 | |
193 | |
200 | |
214 | |
222 | |
240 | |
247 | |
250 | |
266 | |
329 | |
340 | |
359 | |
381 | |
Other editions - View all
Common terms and phrases
applied Area in sq Bar iron beam block and tackle body boiler Brass breadth cast iron centre circle circumference column Copper cube cubic feet cubic inches cylinder decimal degree depth distance divide the product draw the line elastic force engine esbo Fahrenheit feet in length feet per second fluid foot friction frustum gallons given grammar gravity heat Hence imperial gallons inches diameter inches of mercury inclined plane labour language Latin leading screw lever lineal logarithm means mechanic ment mind motion Multiply nature number of teeth pinion piston pitch practical pressure principle profession proper pulley quantity quired quotient equal radius ratio red-short resistance revolutions revolutions per minute Rule shaft side solid square feet square inch square root steam steam-engine stroke suppose surface taste temperature Th'k thickness tion trade unguent velocity weight wheel wrought iron
Popular passages
Page 205 - ... depend on the will of the moment, and which can be carried on so far mechanically that an average quantum only of health, spirits, and intellectual exertion are requisite to its faithful discharge.
Page 101 - Multiply the square of the diameter of the cylinder in inches by the velocity of the piston in feet per minute, and -divide the product by 6,000 ; the quotient is the number of nominal horses power.
Page 197 - ... the most praiseworthy and successful cultivation of useful knowledge on the part of an individual without education, busily employed in mechanical industry. I have the pleasure to be acquainted, in one of the neighboring towns, with a person who was brought up to the trade of a leather-dresser, and has all his life worked, and still works at this business.* He has devoted his leisure hours, and a portion of his honorable earnings, to the cultivation of useful and elegant learning.
Page 384 - It is thus that the general rules of morality are formed. They are ultimately founded upon experience of what, in particular instances, our moral faculties, our natural sense of merit and propriety, approve, or disapprove of.
Page 208 - ... like a restorative atmosphere, or soft music which moulds a dream without becoming its object. If facts are required to prove the possibility of combining weighty performances in literature with full and independent employment, the works of Cicero and Xenophon among the ancients ; of Sir Thomas More, Bacon, Baxter, or to refer at once to later and contemporary instances, Darwin and Roscoe, are at once decisive of the question.
Page 207 - ... appear as a chain of flowers, capable of linking, your feelings as well as thoughts to events and characters past or to come; not a chain of iron which binds you down to think of the future and the remote by recalling the claims and feelings of the peremptory present. But why should I say retire? The habits of active life and daily intercourse with the...
Page 323 - ... to think, as well as to speak, accurately. By putting our sentiments into words, we always conceive them more distinctly. Every one who has the slightest acquaintance with composition knows, that when he expresses himself ill on any subject, when his arrangement is loose, and his sentences become...
Page 311 - I hope you taste and love those authors particularly. You cannot read them too much: they are not only the two greatest poets, but they contain the finest lessons for your age to imbibe : lessons of honor, courage, disinterestedness, love of truth, command of temper, gentleness of behaviour, humanity, and in one word, virtue in its true signification.
Page 272 - ... and the reason is because people are accustomed to the right way of teaching that language, which is by talking it into children in constant conversation, and not by grammatical rules. The Latin tongue would easily be taught the same way if his tutor, being constantly with him, would talk nothing else to him and make him answer still in the same language.
Page 30 - From half the sum of the three sides, subtract each side severally; multiply the half sum, and the three remainders together, and the square root of the product will be the area required. Example. — Required the area of a triangle, whose sides are 50, 40, and 30 feet. 50 + 40+30 ; — 60, half the sum of the three sides.