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1. 发明授权

US4082466A Optical sighting instrument 失效
标题翻译：光学仪器
公开(公告)号：US4082466A
公开(公告)日：1978-04-04
申请号：US695764
申请日：1976-06-14
申请人： Robert L. Underberg
发明人： Robert L. Underberg
IPC分类号： G01C5/02
CPC分类号： G01C5/02
摘要： The optical sighting instrument uses the image of a floating bubble in a spirit level as a self-compensating index mark to indicate a reference line of sight at a given angle to the earth's normal surface.

2. 发明授权

US4650324A Level Transit 失效
标题翻译：水平运输
公开(公告)号：US4650324A
公开(公告)日：1987-03-17
申请号：US705183
申请日：1986-02-25
申请人： Robert L. Underberg
发明人： Robert L. Underberg
IPC分类号： G01C5/02 , G01C1/10
CPC分类号： G01C5/02
摘要： The telescope of the level-transit includes two mirrors at 45.degree. to the light path. A first mirror is fixed in the telescope housing by screws which thread into the mirror support to pull it tight against a datum surface established by a cover. The other mirror is mounted for pendulating action to automatically compensate the instrument for deviation from level within the design range. When the instrument is used as a transit the telescope is free to tilt up and down to measure vertical angles. At that time the pendulum is locked in center position. When the instrument is used as a level, the telescope is locked against elevation or depression. The locking mechanism actuates a device which frees the pendulum for operation to automatically compensate the level. The bottom of the pendulum weight has an inverted conical member fixed therein. The conical portion passes through an elongated hole in a leaf spring fixed in the telescope to flex about an axis transverse the mirror pivot axis. The hole is parallel to the pivot axis. The spring is self biased to engage the conical portion to center the weight. The telescope locking mechanism lifts the spring off the conical portion.
摘要翻译：水平通道的望远镜包括与光路45度的两个反射镜。第一个镜子通过螺丝固定在望远镜外壳中，螺丝被拧入镜子支撑件中，以将其紧紧地靠在由盖子所建立的基准面上。另一个镜子安装用于摆动动作，以自动补偿仪器偏离设计范围内的水平。当仪器用作运输工具时，望远镜可自由上下倾斜以测量垂直角度。那时钟摆被锁定在中心位置。当仪器用作水平仪时，望远镜被锁定以防止高度或凹陷。锁定机构启动一个摆放摆锤以自动补偿水平的装置。摆锤的底部具有固定在其中的倒锥形构件。锥形部分穿过固定在望远镜中的板簧中的细长孔，以围绕横向于镜子枢转轴线的轴线弯曲。孔平行于枢轴。弹簧被自偏压以接合锥形部分以使重量居中。望远镜锁定机构将弹簧从锥形部分提起。

3. 发明授权

US5208438A Method and apparatus for adjusting laser instruments Z axis 失效
标题翻译：激光仪器Z轴调整方法和装置
公开(公告)号：US5208438A
公开(公告)日：1993-05-04
申请号：US716245
申请日：1991-06-17
申请人： Robert L. Underberg
发明人： Robert L. Underberg
IPC分类号： B23K26/02 , G02B7/00
CPC分类号： G02B7/004 , B23K26/035 , B23K26/042
摘要： A fixture for use in adjusting a laser type leveling instrument has a cradle mounted on a base and operative to support the instrument with its normally vertical axis disposed horizontally. A pentaprism is mounted on a rotable platform on the base to reflect a laser beam, emitted by an instrument in the cradle and impinging on the pentaprism, in a horizontal path. The rotatable platform for the pentaprism permits movement of the pentaprism from a first position in which the beam is directed forwardly and a second position in which the beam is reversed and reflected rearwardly.
摘要翻译：用于调整激光式调平仪器的固定装置具有安装在基座上的支架，并可操作以支撑其水平放置的其垂直轴线的仪器。五棱镜安装在基座上的可旋转平台上，以反射由仪器在支架中发射并以水平路径撞击五棱镜的激光束。用于五棱镜的可旋转平台允许五棱镜从其中向前指向的第一位置和第二位置移动，在该第二位置，梁被反向并向后反射。

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