One of the rods which connect the piston-rod crosshead with the side levers, in a side-lever engine.
The hydraulic cylinders I, with their rams pushed home, are lowered upon the crosshead E, and the top casting D to which they are attached is then secured firmly to the columns C by cottering through the slots.
After the rams have made their full stroke of about 3 feet 6 inches, the pressure is let off, and the hydraulic cylinders I with the top casting D slide down the rams resting on the crosshead E, until the rams are again pushed home.
To help steady the crosshead, these shoes probably were a foot or more long, for the loading of the crosshead is spread out.
The connecting rod operates a crosshead to which is pivoted a pitman, or oscillating rod, that operates the paddle-wheel crankshaft.
The crossheadwas of iron and probably had shoes at the ends to work in the tracks or channels in the frame.
Between each pair would have been the iron track, or channel, in which the ends of the crosshead travelled, along the axis of the engine in elevation.
Because its stroke is short and the plunger is in less rapid motion, the present eccentric arrangement is more complex but less prone to disorder than the simpler but faster crosshead pump.
The full-stroke crosshead pump with which the Jenny Lind (fig.
One of the alternatives is a guided crosshead (fig.
The crosshead of the reciprocating air pump is guided by a Peaucellier linkage shown at the center.
Large metal planing machines were well known by 1830, and by midcentury crossheads and crosshead guides were used on both sides of the Atlantic in engines with and without working beams.
The standards, as will be seen, are of very light T steel, the crankshafts and pins are hollow, as are also the crosshead bolts and piston rods.
Each top buckle is passed through the crossheadand is pierced with a mortise for the reception of a thin steel wedge or key, by whose agency the blade is strained and tightened.
The edge of the crossheadupon which the keys bed is steeled to lessen the wear invariably ensuing from frequently driving up the keys.
This long frame had to be made to accommodate the crosshead which was necessary for such a short cylinder.
The crosshead runs in guides made from a piece of gas pipe with the sides cut out and threads cut on both ends.
The piston rod, crossheadand stuffing box are thus dispensed with.
Guide block (Steam Engine), a block attached in to the crosshead to work in contact with the guide bar.
Beneath the crosshead of the press is a swinging bed, on each end of which is a form, in order that a shoe may remain under pressure upon one while the operator is placing another shoe on the other.
Example: At what speed should the crosshead move to give the required rate of fibre strain in testing a small beam 2" X 2" X 30".
The stationary part of the straining mechanism, which is used only for tension and cleavage tests, consists of a steel cage above the movable crosshead and rests directly upon the weighing platform.
At the lower ends of these screws are geared nuts all rotated simultaneously by a system of gears which cause the movable crosshead to rise and fall as desired.
The top of the cage contains a square hole into which one end of the test specimen may be clamped, the crosshead containing a similar clamp for the other end, in making tension tests.
Roller bearings should be placed between the bearing blocks and the knife edges of the crosshead to allow for the shortening due to flexure.
Then pass the rod through the gland and assemble the crosshead and fork on its end, and assemble the guides round the crosshead foot.
The writer made an engine of the same kind, differing only from that shown in the design of the crosshead guides, without the assistance of a lathe, except for turning the piston and fly wheel--the last bought in the rough.
Put the connecting rod in place on its pins, and revolve the crank until the guides have taken up that position which allows the crosshead to move freely.
If the rod could be driven in until the shoulder is, say, 1/8 inch from the crosshead face, it would then be near enough to finish to size by filing.
If the crosshead were bored originally to fit a standard plug gage, the taper on the rod could be turned with reference to this gage, but, whatever the method, the taper should be tested before turning too close to the finished size.
Tool Point should be in same Horizontal Plane as Axis of Work for Taper Turning] After the crosshead end is finished, the rod is reversed in the lathe for turning the piston end.
The cylinder crosshead is shown in the inboard profile to have reached the underside of the beams of the upper deck.
The piston rod and the crosshead obviously passed through its gun deck in a large hatch.
There is another pair of connecting rods from the side levers to the crosshead of the air pump.
The crosshead was connected by two connecting rods to the side levers.
A bar that forms a guide for the crosshead of an engine or other moving piece.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "crosshead" in a variety of sentences. We hope that you will now be able to make sentences using this word.
