It consists of a driving head, answering to the headstock of an ordinary lathe.
C C are the bolts to secure the headstock to the shears.
If the large end of the taper on the work is required to stand nearest the lathe headstock A, the plate P on the headstock must be moved until its shoulder O is farther from the lathe centre.
A is a headstock bolted to the upright B; C is the cone pulley, and E a face plate built up of wood, and fastened to an iron face plate by bolts.
The tailstock carries a stationary feeler, and the headstock a movable one, operated horizontally by a screw passing through a nut provided in the headstock, the axial lines of the two feelers being parallel and in the same plane.
The front bearing of the headstock has two brasses or boxes, A and B, set together by a cap C.
This machine consists of a driving head corresponding to the headstock of a lathe, but having a hollow spindle through which the pipe may pass.
A A' represents the headstock carrying the bearing boxes B and B', which are capable of bore closure so as to be made to accurately fit the spindle S by the construction of the front bearing B, being more clearly shown in Fig.
To maintain the axes of the live and dead spindles in line, they are fitted to a slide or guideway on the shears, the headstock being fixed in position, while the tailstock is adjustable along the shears to suit the length of the work.
Unfortunately, the gearing which once existed to connect the headstock spindle with the lead screw has long been lost.
This made possible a shorter, much stiffer spindle and supported both ends of the spindle in one frame or headstock rather than in separate pieces attached to the bed.
This can be realized from figure 16 which shows a traverse-spindle lathe headstock typical of the mid-19th century.
It is equipped with special adjustable headstock and tailstock fixtures designed to take crankshafts having strokes up to about 6 inches.
At the headstock end, this rock-shaft carries another segmental pinion meshing with rack teeth formed on the cross-slide.
To secure the internal taper, the headstock of the machine is swiveled slightly on its transverse ways by the use of tapering gibs.
Many lathes also have gears in the headstockfor changing the speeds.
These change gears for different speeds are listed on a speed and feed plate attached to the headstock of the machine (see Fig.
The adjustment is obtained in the same manner as on the headstock fixture, and removable split bushings as well as a hinged clamp are also employed.
As those familiar with this machine know, the longitudinal movements of the turret as well as the transverse movements of the headstock are controlled by positive stops.
The tailstock center is ground by inserting it in the spindle in place of the headstock center.
The headstock of this machine has ten stops which are mounted in a revolving holder and are brought into position, as required, by manipulating a lever at the front.
Both the tail stock and the headstock centerpoints should be hardened.
But the headstock subclass is not superior necessarily to the tailstock subclass simply because the headstock is commonly more complex than the tailstock.
Yet arbitrary preference for classification in the headstock subclass may be established by position where an application or a patent contains claims for both.
For turning or cutting a slide-rest is used, that is an attachment sliding between the headstock and the tailstock, for holding the tools.
The end standard at the headstock is cut to the full length so that the upper end is used as a bearing for the headstock spindle.
One of the standards of the headstock is the extension of the lathe standard, as previously mentioned; the other standard being cut 9-3/4 in.
When the nuts on these bolts are tightened, the headstock is firmly clamped to the bed.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "headstock" in a variety of sentences. We hope that you will now be able to make sentences using this word.
