The edges of the scrapers are so bevelled as to act only when turned to the right, or with the sun.
Scrapers are also to be supplied for rifled cannon, made to clean a groove and the adjacent lands.
And though I'd considered the sky-scrapers awful, from a distance, spinning along at their feet I couldn't deny them a fantastic kind of attractiveness.
A few perforated Unio shells and some rude stone skinners and scrapers were found with them.
Where sky-scrapers are there must be no commemorative statues, no monuments raised to merely human heroes.
These are its only defence against a covered sky and an enveloping fog, and the patriotic Americans who would transplant their sky-scrapers to England merely prove that they do not appreciate the logic and beauty of their own design.
It recks as little of sky-scrapers as of transportation.
And, as they raise their heads through the murky fog, these sky-scrapers wear a morose and sullen look.
Stone scraperswere widely employed; shell could be employed in some areas.
Before being bent to sheer, the gunwale members were worked smooth with a plane or with scrapers made of glass or steel.
A mounting similar to form 4 is seen in some Alaska specimens of celt-scrapers in which the implement is fastened to a piece of wood so as to project a short distance, and used like a plane.
The scrapers of this class in the Bureau collection are as follows: A.
That some might have been used as scrapers may be true, but very few are suited for such work, and not one shows the least mark of wear that could result from this use.
A few quotations regarding the use and mode of manufacture of stemless scrapers may be given: According to Evans, they are made by laying a flake flat side up on a stone, and chipping off around the edge with a hammer.
These objects were mostly for use as knives, scrapers or spearheads.
They form a medium between celts whose faces gradually curve from top to edge, and the celt-scrapers which are flat on one side.
The same remarks as to form and method of making apply to stemmed scrapers as to blunt arrows, except that the chipping of the end is always from one face so as to produce a chisel edge.
Many, even of those scarcely changed from their original form and natural surface, have the edges dulled and polished from use as scrapers or adzes.
Notched sinkers and large grooved sinkers were more commonly found than in the Thompson Valley, while sap scrapers which were common there, were not found in the Yakima district.
Scrapers made of bone, similar to those found by us in the Thompson River region and in the vicinity of Puget Sound[201] were not seen in the Yakima region.
No sap scrapers such as were collected in the Thompson River region[76] were identified and they have not been recognized among specimens from the coast.
Ten pages of these sky-scrapers of yours would pay me only about three hundred dollars; in my simplified vocabulary the same space and the same labor would pay me eight hundred and forty dollars.
What has made these sky-scrapers possible is the elevator.
Under the sky-scrapers the “bush telegraph” carried its messages with almost the same astonishing swiftness as in the jungle.
The machine guns in all the towers and sky-scrapers were sufficient warning.
The enemy ships had the range of the city, and already the sky-scrapers were toppling into Broadway!
At one place the flint implements, arrow-heads, knives, and scrapers are all of a very primitive type, and were found sorted into piles.
Some javelin heads in sandstone, basalt, and quartz, with scrapers and knives, most of them flat on one side and rounded on the other, appear to be even more ancient than the agate implements.
In the fields, near an alignment not far from Autun, were picked up numbers of hatchets of bard rock, barbed arrows, flakes of flint worked into scrapers or chisels, whilst near them were the very polishers on which they had been pointed.
In some cases hatchets, knives, andscrapers seem to have been buried in pits.
In one of the latter, at Hassi al Rhatmaia, the knives were piled up in one place, the scrapers in another, and the arrow-heads in a third.
These argillite points and scrapers seem to belong to the palæolithic man toward the end of his "age," manifesting a higher stage of culture reached by gradual improvement.
Panoramas of houses and docks on either side swept by us as we moved along, and sky-scrapers loomed up prominently.
It is several miles long, its lower portion from Bowling Green to Fourteenth Street being lined on either side by many sky-scrapers and massive wholesale business establishments, and from Fourteenth Street up, by retail stores.
The hide had to be dried in the open air, and then scraped all over with flint scrapers until all the hair was taken off.
It consists predominantly of scrapers and knockers, with here and there a tool sharpened for cutting.
Remove the shell of the back (carapax) in one piece, by cutting under its lower edges, and with steel bone-scrapers clean out all the flesh from the body and tail.
La Quina type of implements with scrapers and bone anvils.
Mousterian 'points' and scrapers from various parts of Europe, as interpreted by de Mortillet.
Many of thescrapers are 'keeled' (grattoirs carenes).
For industrial purposes scrapers continue to be very abundant, as well as borers for the perforation of bone implements.
By him were erected the rude stone monuments that are scattered over the county, and he had his favourite sites for trimming flints into scrapers and arrow-heads.
Arrow heads, lance heads and scrapers have been found in tolerable abundance on the Bodmin moors, on Carn Brea, at St Agnes, etc.
Among these are especially some arrow-heads and scrapers of flint which cannot be distinguished from analogous objects picked up on the neighbouring fields.
One flake was a good example of a knife, and showed evidence of having been used; three other flakes were secondarily chipped and converted into neat scrapers and a saw (No.
Lance-heads and scrapers are also numerous and well made.
Arrow-points of bone are 3 to 4 inches long, and scrapers 1½ to 3½ inches.
A few flakes, arrow-points, and scrapers of flint (Nos.
Among the more recent finds are numerous flint arrow-heads and scrapers (No.
We make all of our axes and spear heads and knives and scrapers of flint," he said after a while.
Scrapers of gourd and earthenware for smoothing pottery.
The positions in which to hold cutting tools while grinding them are as follows: The bottom faces of lathe tools and the end faces of tools such as scrapers should be ground with the tool laid upon the grindstone rest as in Fig.
Both these tools are for vice work, used in the same manner as described for flat scrapers, while all scrapers cut smoother when the edge is kept wetted with water, as is essential when used upon wrought iron, copper, and steel.
Scale is removed mechanically by chisels, scrapers and chipping hammers, which are applied to all the surfaces that can be got at from the inside of the boiler (the man hole affording access to the boiler).
Such scrapers are oilstoned and held with the handle end above the horizontal level.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "scrapers" in a variety of sentences. We hope that you will now be able to make sentences using this word.
