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公开(公告)号:US4707949A
公开(公告)日:1987-11-24
申请号:US885866
申请日:1986-07-15
申请人: Lars Hellstrom
发明人: Lars Hellstrom
CPC分类号: G02C7/02
摘要: A method for manufacturing a spectacle-glass for myopes, starting for simplicity sake from a semi-finished glass, that is a glass having on the inner side, a slight concave hollowing, which comprises computing according to the desired diopter value, the required curvature, and with torus-like grinding, the so-called cross-curvature, and computing according to the desired field of view, a second curvature, whereafter the glass is arranged in a generator and a center hollowing is milled according to the basic curvature, while thereafter the glass edge around the center hollowing is milled according to said second curvature, and the center hollowing of the thus-machined glass is finished, respectively polished, by using a tool with convex radiusing which corresponds to the basic curvature, whereafter the edge is subjected to at least one finishing operation and one polishing operation by using an implement with a convex radiusing which corresponds to said second curvature, whereby moreover use is made of a resilient intermediate part between said implement and a finishing pad, respectively polishing pad.
摘要翻译: 为了简单起见,从半成品玻璃开始制造用于近眼镜的眼镜玻璃的方法,即在内侧具有轻微凹入的中空的玻璃,其包括根据期望的屈光度值计算所需的曲率 ,并且通过圆环式研磨,所谓的横向弯曲,并根据期望的视场计算第二曲率,然后将玻璃布置在发电机中,并且根据基本曲率铣削中心空心, 然后根据所述第二曲率铣削围绕中心空心的玻璃边缘,并且通过使用具有对应于基本曲率的凸形圆角的工具来完成分别抛光由此被加工的玻璃的中心空心,然后边缘 通过使用具有对应于所述第二曲率的凸形圆角的工具进行至少一次精加工操作和一次抛光操作,由此, 在所述工具和精加工垫之间分别使用分别为抛光垫的弹性中间部件。
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公开(公告)号:US4714329A
公开(公告)日:1987-12-22
申请号:US785252
申请日:1985-10-07
申请人: Lars Hellstrom
发明人: Lars Hellstrom
摘要: Visual aid especially for weak-sighted persons and comprising a sleeve into which at least one lens is fittable having the desired optical properties. The sleeve is intended to be fitted into an opening in a spectacle glass and be fixed in an optional position for individual adjustment of the distance between the person's cornea and the lens surface.
摘要翻译: 特别是对于弱视人员的视觉援助,并且包括一个套筒,至少一个透镜可装配到该套筒中,具有所需的光学特性。 套筒旨在安装在眼镜玻璃的开口中,并固定在可选位置,用于个人调整人的角膜和镜片表面之间的距离。
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公开(公告)号:US6050751A
公开(公告)日:2000-04-18
申请号:US101968
申请日:1998-07-21
申请人: Lars Hellstrom
发明人: Lars Hellstrom
CPC分类号: B23B27/1622 , B23B2200/123 , B23B2200/3618 , B23B2200/3627 , B23B2205/04 , B23B2205/16 , Y10T407/2274 , Y10T407/2276 , Y10T407/2278 , Y10T407/2282 , Y10T407/23
摘要: A cutting insert for chip-breaking metal machining includes an upper chip surface, a lower bottom surface, which is substantially plane parallel with the chip surface, one or several side surfaces that extend between said chip and bottom surfaces, and a through hole (12) for the accomodation of a locking screw (11). The hole (12) includes a rotation-asymmetrical portion (16) including a plurality of radially bulging portions (17) extending in the direction of the hole, the transitions (18) extending substantially in the direction of the hole between adjacent bulging portions being intended to pairwise abutting against the locking screw (11) and guiding the insert towards the right positioning in an insert seat, before the insert is clamped. In this way, it becomes considerably easier to position the cutting insert, particularly when it has a larger number of cutting edges, e.g. six or eight.
摘要翻译: PCT No.PCT / SE97 / 00115 Sec。 371日期:1998年7月21日 102(e)日期1998年7月21日PCT 1997年1月23日PCT公布。 出版物WO97 / 27018 PCT 日期1997年7月31日用于切断金属加工的切削刀片包括上芯片表面,下表面,其基本上平行于芯片表面平行,在所述芯片和底表面之间延伸的一个或多个侧表面,以及 用于容纳锁定螺钉(11)的通孔(12)。 孔(12)包括旋转不对称部分(16),其包括在孔的方向上延伸的多个径向凸出部分(17),基本上在相邻凸起部分之间的孔的方向上延伸的过渡部分(18) 意图在插入件被夹紧之前成对地抵靠锁定螺钉(11)并将插入件朝向插入座中的右侧定位引导。 以这种方式,更容易定位切削刀片,特别是当其具有更多数量的切削刃时,例如, 六八个。
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公开(公告)号:US6004081A
公开(公告)日:1999-12-21
申请号:US983038
申请日:1998-03-27
申请人: Lars Hellstrom , Stefan Roman , Goran Pantzar , Erwin Kemper , Stefan Scherbarth
发明人: Lars Hellstrom , Stefan Roman , Goran Pantzar , Erwin Kemper , Stefan Scherbarth
CPC分类号: B23C5/2221 , B23B2205/16 , B23C2200/0405 , B23C2200/125 , B23C2200/168 , B23C2210/166 , B23C2210/168 , Y10T407/227 , Y10T407/2272 , Y10T407/2274
摘要: A tool for cutting metal machining comprises one or several cutting insert seats (1), each one for an indexable cutting insert, each insert seat comprising a bottom support surface (10) and at least two side surfaces, which form a right angle with each other. One of these side surfaces comprises two side surfaces (12, 16), which are located at different distances from the bottom support surface (10), one of these being intended as a support surface for square cutting inserts and the other as a support surface for specially shaped hexagonal inserts. In this way, one and the same insert seat can accommodate either a square or a hexagonal cutting insert, which considerably improves cutting economy.
摘要翻译: PCT No.PCT / SE96 / 00938 Sec。 371日期:1998年3月27日 102(e)1998年3月27日PCT PCT 1996年7月11日PCT公布。 公开号WO97 / 03779 日期1997年2月6日用于切割金属加工的工具包括一个或多个切削刀片座(1),每个用于可转位的切削刀片,每个刀片座包括底部支撑表面(10)和至少两个侧表面 彼此直角。 这些侧表面中的一个包括位于距底部支撑表面(10)不同距离的两个侧表面(12,16),其中一个侧面旨在作为用于方形切削刀片的支撑表面,另一个用作支撑表面 用于特殊形状的六角形刀片。 以这种方式,同一个插入座可容纳正方形或六边形切削刀片,这大大提高了切削经济性。
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