The dog, a, and its appurtenances for connecting the log with the mandrels and disconnecting it therefrom, as specified.
Turning the log to be cut by driving the mandrels at each end thereof by gearing them directly with the driving shaft, substantially as and for the purposes set forth.
Lathe Dogs, Iron and Steel Expanding Mandrels of all sizes.
This type is particularly desirable for large work, owing to the greater pressure required for inserting mandrels that are comparatively large in diameter.
With the last of these mandrels in the hole the hub was drawn out to length and diameter, leaving the forging roughly shaped, but having the form shown in Fig.
The pulleys to be turned are placed upon mandrels and driven by two arms engaging opposite arms of the pulley.
Mandrels are best made of steel hardened and ground up after hardening.
The centres of mandrels should either have an extra countersink, as at A in Fig.
Instead, however, of driving mandrels into work, it is better to force them in under a press.
Threaded mandrels that are in frequent use soon become a loose fit to the work by reason of the thread wear, with the result that if the face of the work is not true with the thread, it meets the mandrel shoulder, as in Fig.
Mandrels or arbors are sometimes made adjustable for diameter by forcing a split cone upon a coned plug, examples being given in the following figures, which are extracted from Mechanics.
The mouth of A is coned to receive the arbors or mandrels for driving the mills or cutters.
After the concrete has solidified, the mandrels are taken out in pieces, leaving continuous longitudinal holes which serve as ducts.
These are usually constructed by placing collapsible mandrels of wood or metal in a trench where the ducts are desired and then filling the trench with concrete.
Again, there befell an occasion when the men stole two pounds' weight of five vershok mandrels and bolts.
Each of you now stands docked for some mandrels and bolts.
One of these mandrels was placed in each line of single ducts and two in each 4-way duct, placed diagonally, as shown in Fig.
Wooden rods were used at first, but proved entirely too light, as the mandrels used were a close fit, and it required considerable effort to push them through 400 ft.
Plate XXV, which shows the telegraph and telephone lines, with the expanding mandrels used in laying them.
When a line was finished, two mandrels were placed diagonally in each line and expanded simultaneously, so that any inequalities in the ducts themselves were divided as far as possible.
Wooden mandrels should have iron center plates let in them, so that they will run true; if the center was made in the wood itself, it would be liable to run out.
Steel mandrels should be turned two in one, or largest in the middle, for small work, each end being a different size.
In lathes that have traversing mandrels to cut screws, the tool itself remains stationary, but as this is obviously a disadvantage in many kinds of work, it is far better to have the tool advance and the mandrel revolve as usual.
Mandrels are made of wood and steel—usually steel, and never of wood, unless for some special reason.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "mandrels" in a variety of sentences. We hope that you will now be able to make sentences using this word.
