Abstract A gland assembly for use in providing a seal between a piston rod and the end of a cylinder of a piston and cylinder unit, the assembly being of the kind having an annular seal formed of resilient material, wherein there is provided a guide bush through which in use the piston rod will extend, said guide bush having an axially extending portion connected at one end to a radially extending flange and there being also provided a pair of annular retaining members which are arranged so that their inner surfaces are respectively engaged with the outer peripheral surfaces of said axially extending portion and said radially extending flange of the guide bush whereby said guide bush connects together said annular retaining members, one of said annular retaining members being formed with a recess in which said seal is located.
A gland assembly for a piston rod of a piston and cylinder unit comprising: a guide bush having an axially extending portion and a radially extending flange; a pair of annular retaining members; an annular flexible seal element; the exterior suRface of said axially extending portion of said guide bush engaging the inner surface of one of said annular retaining members to locate said one retaining member; the outer peripheral surface of said radially extending flange of the guide bush engaging a portion of the inner surface of the other retaining member; the outer periphery of said other annular retaining member on the side thereof adjacent to said other annular retaining member is chamfered; the outer edge of said other annular retaining member is cranked to engage on one side said chamfered part of said one retaining member and on the other side is adapted to be secured to the cylinder of said piston and said cylinder units; and said other annular retaining member having a centrally disposed dished portion to define with said radially extending flange of the guide bush a recess in which said annular flexible seal element is located.
Claim 2
Dependent Claim
192 words
A gland assembly for a piston rod of a piston and cylinder unit comprising: a guide bush having an axially extending portion and a radially extending flange; a pair of annular retaining members; an annular flexible seal element; the exterior suRface of said axially extending portion of said guide bush engaging the inner surface of one of said annular retaining members to locate said one retaining member; the outer peripheral surface of said radially extending flange of the guide bush engaging a portion of the inner surface of the other retaining member; the outer periphery of said other annular retaining member on the side thereof adjacent to said other annular retaining member is chamfered; the outer edge of said other annular retaining member is cranked to engage on one side said chamfered part of said one retaining member and on the other side is adapted to be secured to the cylinder of said piston and said cylinder units; and said other annular retaining member having a centrally disposed dished portion to define with said radially extending flange of the guide bush a recess in which said annular flexible seal element is located.