| 单词 | countersink |
| 例句 | I told him I thought countersinking the nozzle was a good idea. October Sky 1999-04-01T00:00:00Z The flight of Auk XXII-D was to be the final flight in the series that used countersunk nozzles. October Sky 1999-04-01T00:00:00Z Besides the countersunk nozzle, Mr. Caton showed off his new design for attaching the fins to the casement. October Sky 1999-04-01T00:00:00Z How about we countersink the nozzle, one side or the other or both? October Sky 1999-04-01T00:00:00Z “Was it the countersink that made it explode?” he asked. October Sky 1999-04-01T00:00:00Z With its radula, a rasp of seven rows of teeth, the moon snail countersinks its unmistakable signature: a perfect round hole, right at the clam’s hinge, to pop open its meal. Lowest tides of the month on Saturday, Sunday reveal Sound’s wonders, including the wily moon snail 2014-07-10T04:00:00Z The chocks in which these boats rest are provided with gunmetal wheels, which run in transverse gunmetal tracks, countersunk on the deck. From the Archive, 1912: Wreck of the White Star Liner Titanic 2012-04-11T16:45:03.663Z In countersink head bolts, such as the patch bolt in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z A bolt with a countersunk head is shown in fig. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z The top of this finned portion is slightly countersunk, and the stem is riveted into same, thereby reducing the possibility of leakage past the threads on the stem. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z It consists of two enormous upright blocks of stone with a massive slab on the top, the latter being curiously countersunk into the two uprights. Stevenson's Shrine The Record of a Pilgrimage 2011-07-18T02:00:23.520Z The boring is done something after the manner of countersinking, and the jaws are believed to be self-sharpening, by reason of the peculiar right to left and left to right motion. Wood and Forest 2011-03-01T03:00:42.647Z Instead of the hole being countersunk, however, it may be cupped or counterbored, as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z If the countersunk head be lengthened so as to take up the whole of the unscrewed part of the bolt, we get the taper bolt shown in fig. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z For this purpose a countersunk rammer head to fit over the head of the ball had to be used. The Development of Armor-piercing Shells with Suggestions for their Improvement Lifting it aside, the detective found himself staring at an instrument board of some kind with a series of buttons and dials countersunk into it. Twelve Times Zero With much hammering and cursing it was laboriously formed into a sturdy open-end wrench with an offset head to get at the countersunk nuts. The Ethical Engineer Twist drills for use in wood work are given a conical point, as was shown with reference to lathe drills, and when the holes are to be countersunk, an attachment, such as shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Exercise 13.—Draw, full size, the plan and elevation of the square nut and bolt with countersunk head shown in fig. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z The linotype machine consists of a keyboard not unlike that of the typewriter, which actuates a magazine containing matrices or countersunk letter molds, together with a casting mechanism for producing lines or bars of words. News Writing The Gathering , Handling and Writing of News Stories Fasten a panel fish to the setting that is to frame him, with two screws at least, countersinking their heads in the panel back. Taxidermy A grinning soldier seized a countersunk ring and raised the trap-door. The Martian Cabal In cases in which it would not be permissible to drill so many holes through the beam on account of weakening it, we may use patch bolts with countersunk heads, as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The greatest diameter of the countersunk head may be one and a half, and its depth a half of the diameter of the rivet. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z The inside surface of this piece of brass should be countersunk, and the piece is then soldered into the end of the cylinder. Boys' Book of Model Boats The fish piece may be hung as a picture, with screw eyes and cord or it may be hung with one or two sheet metal slots countersunk into the panel back. Taxidermy The round-headed screws are best, unless you want to countersink them. How Two Boys Made Their Own Electrical Apparatus Containing Complete Directions for Making All Kinds of Simple Apparatus for the Study of Elementary Electricity The taper bolts should be of steel, but those with countersunk heads may be of iron. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Around the top of the shell a ½-in. thick collar or band 18 ins. deep is riveted by 24 1-in. countersunk rivets. Concrete Construction Methods and Costs All the holes for the wood-screws should be countersunk so that the heads will come flush with the surface of the hull. Boys' Book of Model Boats Then there are punches, broaches, drills, calipers, countersinks, files, etc., etc. Scientific American Supplement, No. 664, September 22,1888 The screws are all countersunk and as the heads all come on the side next to the wall, they do not show. Mission Furniture How to Make It, Part I The washer should be countersunk about three-quarters of the way through the hole, the latter being left a close working fit to the pin. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Worn somewhat into the soil, this road served as a countersink and strengthened the position. Destruction and Reconstruction: Personal Experiences of the Late War Always coat the edges with shellac or clay water to prevent adhesion and countersink a few holes for dowels to aid in holding the pieces in place. Home Taxidermy for Pleasure and Profit A Guide for Those Who Wish to Prepare and Mount Animals, Birds, Fish, Reptiles, etc., for Home, Den, or Office Decoration If you are anything of a carpenter you will countersink the holes for the heads of the screws; this will also prevent a possible splitting of the strip. The Book-Hunter at Home Two holes are bored and countersunk for screws to hold the post and handle. Mission Furniture How to Make It, Part I After the work is centre-drilled and cut off to length, it must be finally countersunk, so as to provide ample bearing area for the lathe centres. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z It is fixed in position by slightly rebating the edge of the door and fastening with ordinary countersunk brass screws. Woodwork Joints How they are Set Out, How Made and Where Used. If the countersunk bolt heads are carefully modelled over with putty or "mache" and colored like the antlers no one will know they are not attached to a 'bony' fide forehead. Home Taxidermy for Pleasure and Profit A Guide for Those Who Wish to Prepare and Mount Animals, Birds, Fish, Reptiles, etc., for Home, Den, or Office Decoration They set to work at once, installing the heavy leads to the ray projectors, which were on the outside of the hull in countersunk recesses. Islands of Space Slats are fastened to the bed by screws, the heads of which are countersunk so that they may be covered over even with plaster of paris. Mission Furniture How to Make It, Part I If the countersinking is done before the end of the work is squared, it will not be true with the centre-drilled hole. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z After boring, the holes may be slightly countersunk in order to insure a tight joint and the easy slipping of the pins into place. Handwork in Wood Fasten securely on whatever form of mounting you have decided on, countersinking the wires on the under side. Home Taxidermy for Pleasure and Profit A Guide for Those Who Wish to Prepare and Mount Animals, Birds, Fish, Reptiles, etc., for Home, Den, or Office Decoration The screws had been deeply countersunk, and were embedded in rust, but a few were loose with age. The Hand in the Dark In one corner of the large basement was a good-sized workbench, lighted by two windows, and equipped with several neatly-arranged shelves, which now held a divers collection of chisels, bits, countersinks, etc. Around the World in Ten Days If the countersink is made more acute than the lathe centre, as shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The rose countersink is the most satisfactory form. Handwork in Wood This is an oblong box, provided with a countersunk lid, and usually carved from a single piece of wood. A Study of Pueblo Architecture: Tusayan and Cibola Eighth Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1886-1887, Government Printing Office, Washington, 1891, pages 3-228 Their heads are countersunk into the strap iron. Scientific American Supplement, No. 365, December 30, 1882 These pieces are glued and drawn together by the bolts, the heads of which are countersunk. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 It is obvious that such a reamer, however, does not produce strictly a cone countersink, as is shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z A stout frame of rot-resisting wood, such as cedar or fir should be placed on the inside of this countersunk screen. Growing Nuts in the North A Personal Story of the Author's Experience of 33 Years with Nut Culture in Minnesota and Wisconsin Each runner was shod with a strip of brass, fastened on with flathead screws, which were countersunk, so that the heads should not project below the brass. The Scientific American Boy Or, The Camp at Willow Clump Island The apparatus consists of a closed copper bath provided with a condenser and 10 countersunk tubes of 20 cm. length. Nitro-Explosives: A Practical Treatise These pieces are glued and drawn together by the bolts, the heads of which are countersunk. Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 Another method of forming the half-round countersink is shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The edges of the frame should match perfectly so that no rodents can reach the interior of the seed bed without going down 1-1/2 feet under ground to burrow under the countersunk screen. Growing Nuts in the North A Personal Story of the Author's Experience of 33 Years with Nut Culture in Minnesota and Wisconsin The bolt heads were countersunk, so that the hinged boards could lie flat over them. The Scientific American Boy Or, The Camp at Willow Clump Island That is to say, rivet holes in plates to be riveted should have the burr or sharp edge taken off, either by countersinking, by reamer, or set. Scientific American Supplement, No. 810, July 11, 1891 Reassemble the parts, and put in the rest of the holding screws, which should have their heads countersunk flush with the wood. Things To Make In this case it is assumed that the centre-drilling and countersinking are true one with the other. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Lake Tahoe lies countersunk on the very top of the Sierra. The Lake of the Sky Lake Tahoe in the High Sierras of California and Nevada, its History, Indians, Discovery by Frémont, Legendary Lore, Various Namings, Physical Characteristics, Glacial Phenomena, Geology, Single Outlet, Automobile Routes, Historic Towns, Early Mining Excitements, Steamer Ride, Mineral Springs, Mountain and Lake Resorts, Trail and Camping Out Trips, Summer Residences, Fishing, Hunting, Flowers, Birds, Animals, Trees, and Chaparral, with a Full Account of the Tahoe National Forest, the Public Use of the Water of Lake Tahoe and Much Other Interesting Matter Unclamp the pieces from the drill press, turn them over, and countersink the small hole in what was originally the lower piece. The Boy Mechanic: Volume 1 700 Things for Boys to Do Countersunk riveting is generally tighter than snapped, because countersinking the hole is really facing it; and the countersunk rivet is, in point of fact, made on a face joint. Scientific American Supplement, No. 810, July 11, 1891 Detach by heating, scribe a line along its longest axis, and attach it by a small countersunk screw to the end of a convenient handle. Things To Make Yet another form of countersink is shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The justly famous Grand Ca�on of the Yellowstone is, like the Colorado, gorgeously colored and abruptly countersunk in a plateau, and both are mainly the work of water. The Grand Cañon of the Colorado Lay it on the die so that it will fit nicely in the countersink and drive it through the hole by striking the punch with a hammer. The Boy Mechanic: Volume 1 700 Things for Boys to Do The links must be accurately assorted as to thickness, and the outer links countersunk, to admit the bolt. Scientific American Supplement, No. 601, July 9, 1887 Two holes for good-sized screws must also be drilled and countersunk, and a socket for the knob must be scooped out of the lever. Things To Make But when the lathe has made rather more than one-half a revolution, the forcible contact at b will be relieved, and either the work or the countersink will move back towards d. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The justly famous Grand Canyon of the Yellowstone is, like the Colorado, gorgeously colored and abruptly countersunk in a plateau, and both are mainly the work of water. Steep Trails California, Utah, Nevada, Washington, Oregon, the Grand Canyon The block is fastened to the keelson, 3-1/2 ft. from the bow, with bolts through countersunk holes from the under side. The Boy Mechanic: Volume 1 700 Things for Boys to Do The tire is attached to the rim with rivets having countersunk heads, and the wheel is then fixed on its axle. A Catechism of the Steam Engine The bench is countersunk to allow the teeth to be driven down out of the way when a "clear bench" is required. Things To Make This may be remedied by setting the countersink to one side, as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The solid ground ceases suddenly, and an aerial perspective, vast and alluring, takes its place; another heaven, countersunk in the earth, transfixes you on the brink. Time and Change Countersink the top of the hole so that the full diameter of the countersink will be 1-1/4 in. The Boy Mechanic: Volume 1 700 Things for Boys to Do It is like an aqua-marine gem countersunk in the green landscape. Their Pilgrimage Bore countersunk holes for 3-inch screws over the centre of the legs and half an inch from the front edge, 1 foot apart. Things To Make Another and simple form of square centre for countersinking is shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The facing tool is placed next to the drill and is followed by a countersink, in whatever direction the turret is rotated to bring the next tool into operation. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The valves, C, and their seats, B, bored with a countersink bit, are plainly shown. The Boy Mechanic: Volume 1 700 Things for Boys to Do A similar tool, which may, however, be used for other work besides centring and countersinking, is shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z All screws in the top of the bench are countersunk 1/8 inch below the surface. Things To Make Work that is to be hardened and whose centres are, therefore, liable to warp in the hardening, may be countersunk as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z For making a recess round a hole, or, in other words, for cutting a flat-bottom countersink, a facing countersink, Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Fasten the end pieces on with screws, countersinking the heads of the vise end. The Boy Mechanic: Volume 1 700 Things for Boys to Do Suppose, then, one spindle to drive a drill, the second driving an enlarging drill, a third driving a countersink, and a fourth a reamer. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The tension of the leather washer serves to keep the countersunk against the lathe centre without a very minute end adjustment. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z These indentations are produced after the countersinking by the punch, shown in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The holder is cupped on one side to receive a ball as shown, and has a countersink on the other to permit a free vibration of the needle. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The upright pieces, A, should be countersunk as shown in the detail, and then the frame is ready to assemble. The Boy Mechanic: Volume 1 700 Things for Boys to Do One end of the needle is pointed for very small holes or conical recesses, while the other is countersunk for pointed work, as lathe centres. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The countersink of the needle may be made less acute than the lathe centre, so that the contact will be at the very point of the lathe centre, the needle not being centre-drilled. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The smaller sizes of countersinks are sometimes made as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The objection to it is, that the cutting edges of the drill get dull quicker than those of the countersink, and in regrinding them the drill gets shorter. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The screws that hold the uprights in position should have the heads countersunk on the under side of the base. The Boy Mechanic: Volume 1 700 Things for Boys to Do To overcome this difficulty the countersink may be pierced to receive a drill as in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Fasten the upper ends of the knee braces to the uprights with the 8-in. bolts put through the holes bored for that purpose, and countersinking the heads. The Boy Mechanic: Volume 1 700 Things for Boys to Do The end of the pin should be recessed as shown at a, so that it may be the more readily riveted outward to fill the countersink shown in the crank at b, b. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The holes should be countersunk so they can be filled with putty after the screws are in place. The Boy Mechanic: Volume 1 700 Things for Boys to Do Drill and countersink two smaller holes for 2-in. wood screws in each washer. The Boy Mechanic: Volume 1 700 Things for Boys to Do The end of the screw is countersunk to receive the other end of the spindle. The Boy Mechanic: Volume 1 700 Things for Boys to Do The heads should be countersunk or else holes bored in the top boards to fit over them. The Boy Mechanic: Volume 1 700 Things for Boys to Do The centres of mandrels should either have an extra countersink, as at a in Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Now take off the board and countersink on the back a place for the head of a coarse threaded screw. The Boy Mechanic: Volume 1 700 Things for Boys to Do |
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