公开(公告)号：US3718601A

公开(公告)日：1973-02-27

申请号：US3718601D

申请日：1971-01-04

Applicant: BELL TELEPHONE LABOR INC

Inventor： DENTAI A ,  VAN UITERT LE GRAND G ,  WILLIAMS J

IPC: C09K11/77 ,  H05K1/02 ,  H05K1/03 ,  C09K1/10

CPC classification number: H05K1/0269 ,  C09K11/7784 ,  H05K1/0306 ,  H05K2203/161

Abstract: Substrate-supported circuitry is manufactured by forming circuitry on a high alumina dielectric substrate having a fluorescent character arising from the incorporation of both europium oxide plus yttrium (and/or lanthanum and/or gadolinium) oxide, with the latter oxide (s) acting as a dispersing agent. Testing the integrity of the circuitry is accomplished by irradiating the substrate with ultraviolet light and sensing the passage of any visible light through the circuitry that may occur in the presence of defects.

Abstract translation: 基板支持的电路是通过在高氧化铝电介质基底上形成电路来制造的，所述电介质基底具有荧光特性，该荧光特性是由氧化铕加钇（和/或镧和/或钆）氧化物掺入而形成的，后者的氧化物作为 分散剂。 测试电路的完整性是通过用紫外光照射基板并且感测通过可能在存在缺陷的情况下发生的电路的任何可见光的通过来实现的。

公开(公告)号：US3712561A

公开(公告)日：1973-01-23

申请号：US3712561D

申请日：1971-03-16

Applicant: BELL TELEPHONE LABOR INC

Inventor： WILLIAMS J

IPC: G11B15/66 ,  B65H17/02

CPC classification number: G11B15/662

Abstract: A tape reel hold down mechanism for properly seating and firmly clamping a tape reel to a turntable substantially comprises a base rigidly attached to the turntable, an actuating knob rotatable relative to the base and including a plurality of crank pins, a plurality of links each having one end responsive to the circular motion of an associated crank pin for seating the tape reel on the turntable with their other end and a plurality of clamping means each responsive to the motion of a lost motion slot on an associated link for applying an outward radial clamping force to the inner diameter of the tape reel. In a particular embodiment of the invention, the clamping means includes a thin rubber pad and a preloaded compression spring assembly.

Abstract translation: 磁带盘压紧机构，用于将磁带卷盘正确地固定并牢固地夹紧到转台上，基本上包括刚性地附接到转台的基座，可相对于基座旋转的致动旋钮，并且包括多个曲柄销，多个连杆各自具有 响应于相关联的曲柄销的圆周运动的一端，用于将带卷盘与其另一端一起安置在转台上，以及多个夹紧装置，每个夹紧装置响应于相关联的链节上的空运动槽的运动，用于施加向外的径向夹紧 力到磁带卷盘的内径。 在本发明的特定实施例中，夹紧装置包括薄橡胶垫和预加载的压缩弹簧组件。

公开(公告)号：US3778132A

公开(公告)日：1973-12-11

申请号：US3778132D

申请日：1972-10-06

Applicant: BELL TELEPHONE LABOR INC

Inventor： PINNOW D ,  VAN UITERT L ,  WILLIAMS J

IPC: C03C3/06 ,  C03B37/027 ,  C03C3/064 ,  C03C3/089 ,  C03C13/04 ,  G02B6/00 ,  G02B6/02 ,  G02B5/14

CPC classification number: C03B37/027 ,  C03B2201/02 ,  C03B2201/10 ,  G02B6/02

Abstract: Optical transmission lines suitable for transmitting electromagnetic radiation within the visible spectrum and adjoining portions of the infrared and ultraviolet spectra consists of a pure amorphous silica core clad by a B2O3-modified silica cladding. The cladding may manifest a substantial uniform refractive index of a value at least 0.1 percent less than that of the core or may be graded to such a lowered value.

Abstract translation: 适用于在可见光谱范围内传输电磁辐射的光传输线和红外和紫外光谱的相邻部分由纯B2O3改性的二氧化硅包层包裹的纯无定形二氧化硅芯组成。 包层可以表现出比芯的至少0.1％的基本上均匀的折射率，或者可以被分级到这样一个较低的值。