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Title: BRAKE DEVICE

Abstract

A brake device is described for utilization in connection with a control rod. The device comprises a pair of parallelogram link mechanisms, a control rod moveable rectilinearly therebetween in opposite directions, and shoes resiliently supported by the mechanism for frictional engagement with the control rod.

Inventors:
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4243176
Patent Number(s):
US 2876867
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-13-015746
NSA Number:
NSA-13-015746
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-59
Country of Publication:
United States
Language:
English
Subject:
REACTORS; CONTROL ELEMENTS; FRICTION; MACHINE PARTS; MECHANICAL STRUCTURES; MOTION; PLANNING; RODS; USES

Citation Formats

O'Donnell, T.J.. BRAKE DEVICE. United States: N. p., 1959. Web.
O'Donnell, T.J.. BRAKE DEVICE. United States.
O'Donnell, T.J.. Tue . "BRAKE DEVICE". United States. doi:.
@article{osti_4243176,
title = {BRAKE DEVICE},
author = {O'Donnell, T.J.},
abstractNote = {A brake device is described for utilization in connection with a control rod. The device comprises a pair of parallelogram link mechanisms, a control rod moveable rectilinearly therebetween in opposite directions, and shoes resiliently supported by the mechanism for frictional engagement with the control rod.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 10 00:00:00 EST 1959},
month = {Tue Mar 10 00:00:00 EST 1959}
}
  • This patent describes a phase change device. It comprises a first shaft; an input member supported for rotation on the first shaft; an output member fixed to the first shaft; advancing means interconnecting the input and output members, the advancing means being operative upon axial movement to effect limited relative rotation between the input and output members; drum means supported for rotation on the first shaft and engaged with the advancing means to effect the axial movement of the advancing means when a retarding force is applied to the drum means; and actuating means operable to apply the retarding force;more » the improvement wherein the actuating means comprises an electromagnetic brake assembly, the electromagnetic brake assembly comprising an annular housing defining pole pieces of the electromagnet, a magnetic coil received in the housing, a nonmagnetic plate member enclosing the housing, friction material adhered to the plate member, a brake disc surface formed on the drum, and means for mounting the housing on the first shaft in juxtaposition with the brake disc surface in a substantially fixed angular position while permitting limited axial movement relative to the disc surface.« less
  • This patent describes an overrunning roller brake assembly for a planetary gear unit in an automatic transmission for automobiles, the gear unit having a ring gear, a carrier and a sun gear, the carrier having planet pinions thereon engaging the sun and ring gears; a brake for anchoring a reaction member of the gear unit, at least one other member of the gear unit being adapted to receive driving torque; the brake comprising an annular inner brake race surrounding a fixed part of the transmission, an annular outer brake race connected to the reaction member and surrounding the inner race,more » the outer race comprising an extrusion with an outer brake drum surface adapted to be engaged by a reaction friction brake band; overrunning brake rollers between the races, a pair of support rings between the races on either side of the rollers; the support rings having a C-shaped cross section whereby the inner and outer surfaces thereof provide a bearing support for the races; retainer rings enclosed within the support rings, the retainer rings having a radial thickness approximately equal to the radial inside dimension of the C-shaped cross section of the support rings whereby radial loads are transmitted between the races through the retainer rings and support rings.« less