A lathe chuck jaw assembly utilizes top jaws which have replaceable inserts mounted to their clamping faces. The inserts are used to provide a contact surface to hold a workpiece during machining. The contact surfaces of the inserts may be machined for matching a particular workpiece shape such as round stock, hex stock, square stock, or custom configurations. A boring ring is installed between the top jaws and rotated so that the inserts may be symmetrically machined. Alternatively, a polygonal insert blank having congruent sections which are joined with keys along their outer sides may be loaded in the lathe chuck and machined for a particular workpiece. A pad adapter base for supporting a hardened collet pad is also disclosed.
A chuck has a plurality of top jaws for engaging a workpiece. Each top jaw has a recess and a slot that extend completely through the top jaw. The recess and slot allow the forward end of the top jaw to deflect in a rearward direction. This motion allows the jaws to maintain even pressure on the workpiece instead of cocking, thereby minimizing deflection of the workpiece during machining. The slot defines a rearward facing shoulder on the forward end. The maximum deflection of the forward end is limited by the width of the slot. The distance of deflection may be limited by pins located within holes extending through the jaw perpendicular to the slot.
Robert W. Metzger - Hurst TX William D. Neathery - Fort Worth TX Peter A. Reyes - Watauga TX Patrick R. Tisdale - Bedford TX Cecil E. Covington - Hurst TX Willem Broekhuizen - Arlington TX
Assignee:
Bell Helicopter Textron Inc. - Forth Worth TX
International Classification:
B64C 2738
US Classification:
416141
Abstract:
This invention relates to helicopter rotors and more particularly to rotor mounting involving a composite fiber-reinforced unitary yoke with resilient inplane restraints.
A yoke for coupling helicopter blades to a mast is provided. The yoke comprises a long oval loop of glass fibers embedded in a cured adhesive to form a solid strap. The side portions of the loop are reinforced with layers of bias ply glass fibers arranged in parallel planes. Structure is provided to couple to the side portions of the loop for attachment to the mast.
Gaylord W. Carlock - Joshua TX Jimmy G. Garner - Hurst TX Charles M. Gatlin - Hurst TX Kenneth F. Guinn - Fort Worth TX Peter A. Reyes - Watauga TX
Assignee:
Textron, Inc. - Providence RI
International Classification:
B64C 2774
US Classification:
416 98
Abstract:
Individual blade control of a helicopter rotor is accomplished by rotation of a mast (10) about a standpipe (12) where an individual blade (16) is coupled to the mast through a hub (18). Pilot input signals are transmitted by fly-by-optic transmission lines (14) through a fiber optic slip ring (40,42) to signal generators (134, 136, 138) for each of three sections of triplex actuators (76-79) coupled to individual rotor blades. Hydraulic fluid for positioning each of the actuators (76-79) is provided by electrohydraulic power packages (88, 90 and 92) where each package includes a pump and alternator. As each blade rotates about the mast (76) the pitch angle changes by individualizing the output of the signal generators (134-138) for each actuator.
Elastomeric System For Mounting A Helicopter Rotor
Peter A. Reyes - Watauga TX Robert H. Finney - Arlington TX
Assignee:
Bell Helicopter Textron, Inc. - Fort Worth TX
International Classification:
B64C 1112
US Classification:
416134A
Abstract:
This invention relates to a system for mounting a helicopter rotor on a flapping axis and, more particularly, to use of an improved unitary trunnion-bearing structure of minimal parts which may be selectively preloaded and which is readily installed.
University Of Maryland Medical Group 419 W Redwood St STE 600, Baltimore, MD 21201 (667)2141515 (phone), (410)3283577 (fax)
University Of Maryland Cardiology Physicians 193 Stoner Ave STE 350, Westminster, MD 21157 (410)8489007 (phone), (410)8710030 (fax)
Education:
Medical School University of Maryland School of Medicine Graduated: 1998
Procedures:
Angioplasty Cardiac Catheterization Cardiac Stress Test Cardioversion Continuous EKG Echocardiogram Electrocardiogram (EKG or ECG) Vaccine Administration
Conditions:
Aortic Valvular Disease Cardiac Arrhythmia Congenital Anomalies of the Heart Acute Myocardial Infarction (AMI) Acute Renal Failure
Languages:
English
Description:
Dr. Reyes graduated from the University of Maryland School of Medicine in 1998. He works in Westminster, MD and 1 other location and specializes in Cardiovascular Disease. Dr. Reyes is affiliated with Carroll Hospital and University Of Maryland Medical Center.
Name / Title
Company / Classification
Phones & Addresses
Peter A Reyes Director, President, Treasurer, Vice President, Secretary
Human being first and foremost. Bronx boy born and bred. Student of life, practitioner of Zen. Eat when I'm hungry, sleep when I'm tired, work for a living.
Bloomingdale School Public School 145 New York NY 1985-1987, Issac Remsen Public School 147 Brooklyn NY 1986-1991, William J. Gaynor Intermediate School 49 Brooklyn NY 1991-1993, Manhattan Comprehensive Night & Day High School New York NY 1997-2001