Assertion: valve's spring | /r/HasProperty | adapted
Facets:
value: well
type: DEGREE
value: for usein connection with the improvements
type: PURPOSE
Source sentences:
text: My improved spring is especially well adapted for usein connection with the improvements appearing in my application for Letters Patent filed August 26, 1929, Serial No. 388,563, in which the valve piston has a guided spiral reciprocatory movement.