Veneer lathe oiler

Claim 2

In a method of lubricating a veneer lathe roller bar, forcing a lubricant against a roller bar with a high pressure, maintaining the lubricant in continuous contact with the roller bar, and periodically varying the pressure on the oil in contact with the roller bar from a predetermined pressure to second pressure many times greater than said predetermined pressure.

Claim 3

The method of claim 1 wherein said second pressure is at least about 3,000 p.s.i.

Claim 4

In a method of lubricating a veneer lathe roller bar, forcing a lubricant against a roller bar with a high pressure, maintaining the lubricant in a chamber and in continuous contact with the roller bar along the entire length of the roller bar, periodically varying the pressure of the lubricant from a predetermined pressure to a second pressure substantially higher than said predetermined pressure, and confining flow of the lubricant from said chamber between a retainer and the roller bar.

Claim 5

In a method of lubricating a veneer lathe roller bar, forcing a lubricant against a roller bar with a high pressure, maintaining the lubricant in a chamber and in continuous contact with the roller bar along the entire length of the roller bar, periodically varying the pressure of the lubricant from a predetermined pressure to a second pressure substantially higher than said predetermined pressure, and confining flow of the lubricant from said chamber between a retainer and the roller bar.

Claim 6

The method of claim 3 wherein said second pressure is at least in the order of 3,000 p.s.i.

Claim 7

The method of claim 3 including periodically introducing into the chamber lubricant under said second pressure through restricted orifices.

Claim 8

The method of claim 3 including alternately introducing the lubricant into the chamber at different areas spaced along the chamber.

Claim 9

The method of claim 5 including alternately introducing the lubricant into one-half of the chamber and the other half of the chamber.

Claim 10

In a veneer lathe lubricating system, a roller bar, chamber means for holding lubricant in contact with the roller bar, injection means for introducing lubricant under pressure into the chamber means, and continuously driven cycling means for periodically actuating the injection means to periodically vary the pressure in the chamber means.

Claim 11

In a veneer lathe lubricating system, a roller bar, chamber means for holding lubricant in contact with the roller bar, injection means for introducing lubricant under pressure into the chamber means, and continuously driven cycling means for periodically actuating the injection means to periodically vary the pressure in the chamber means.

Claim 12

The veneer lathe lubricating system of claim 8 wherein the chamber means comprIses a strongback and a retainer having a lip extending along the roller bar and defining with the roller bar a linelike orifice substantially coextensive with the roller bar.

Claim 13

The veneer lathe lubricating system of claim 9 wherein the chamber means has a predetermined volume and the injection means includes a pressure source of supply for forcing lubricant under high pressure through the orifice.

Claim 14

The veneer lathe lubricating system of claim 8 wherein the injection means includes positive displacement pump means.

Claim 15

In a veneer lathe lubricating system, a roller bar, chamber means for holding lubricant in contact with the roller bar, injection means for periodically introducing lubricant under pressure into the chamber means, the injection means including positive displacement pump means operated periodically, and a plurality of restrictive orifices spaced along the roller bar receiving lubricant from the injection means nd discharging directly in the chamber means.

Claim 16

In a veneer lathe lubricating system, a roller bar, chamber means for holding lubricant in contact with the roller bar, injection means for periodically introducing lubricant under pressure into the chamber means, the injection means including positive displacement pump means operated periodically, and a plurality of restrictive orifices spaced along the roller bar receiving lubricant from the injection means nd discharging directly in the chamber means.

Claim 17

The veneer lathe lubricating system of claim 12 including check valve means positioned between the chamber means and the pump means.

Claim 18

The veneer lathe lubricating system of claim 12 wherein the pump means includes a central pneumatic cylinder, a pair of hydraulic cylinders at the ends of the pneumatic cylinder, a pneumatic piston reciprocable in the pneumatic cylinder and a pair of hydraulic pistons secured to the pneumatic piston and reciprocable in the hydraulic cylinders.

Claim 19

The veneer lathe lubricating system of claim 14 wherein the injection means includes a pair of parallel lines connecting the hydraulic cylinders to the chamber means.