Bicycle support
    1.
    发明授权
    Bicycle support 失效
    BICYCLE支持

    公开(公告)号:US3580607A

    公开(公告)日:1971-05-25

    申请号:US3580607D

    申请日:1968-07-09

    Applicant: PLETSCHER GEB

    CPC classification number: B62H1/02 Y10T16/524

    Abstract: A bicycle support comprises a socket to be secured to the horizontal rear fork members of a bicycle frame, a support arm having one end pivotally connected to said socket for tilting movement of the arm from a position of rest into operating position and held in one or the other of said positions by a tilting spring acting eccentrically on the arm with respect to its pivoting axis to urge the arm against an abutment on the socket, a spring counterbearing being associated with said pivotally connected end of the arm. The spring counterbearing is formed by an arched surface, for example by the surface of a ball lodged in a trough formed on the pivotally connected end of the support arm, or by a concave arched surface of the trough itself.

    Method for the treatment of workpiece surfaces
    3.
    发明授权
    Method for the treatment of workpiece surfaces 失效
    用于处理工件表面的方法

    公开(公告)号:US3848373A

    公开(公告)日:1974-11-19

    申请号:US22669172

    申请日:1972-02-16

    Applicant: PLETSCHER GEB

    Inventor: PLETSCHER O

    CPC classification number: B24B31/00 B24B31/02

    Abstract: A method of treating the surfaces of workpieces by means of a mass of smooth-surface or abrasive particles which impinge upon the workpiece surface, comprising the steps of placing the particles into a state of free fall, and in the presence of a friction-reducing medium causing the particles to impact upon the surface of the workpiece. The apparatus used in the performance of the inventive method comprises means for elevating the particles to a path of free fall for such particles, means for supporting and rotating the workpieces at the region of free fall of the particles, and means for introducing a friction-reducing medium for contact with the workpieces and particles.

    Abstract translation: 一种通过大量光滑表面或磨料颗粒撞击工件表面来处理工件表面的方法,包括以下步骤:将颗粒置于自由落体的状态,并在存在摩擦减小 介质导致颗粒撞击工件的表面。

    Furnace for melting or heating metals
    4.
    发明授权
    Furnace for melting or heating metals 失效
    用于熔炼或加热金属的炉

    公开(公告)号:US3822873A

    公开(公告)日:1974-07-09

    申请号:US37841473

    申请日:1973-07-12

    Applicant: PLETSCHER GEB

    Inventor: PLETSCHER O

    Abstract: A furnace for melting or heating metals comprising a furnace compartment enclosed by a refractory lining and a crucible for the melt arranged in the furnace compartment. Contacts are provided at the lower region of the furnace compartment, these contacts being arranged in the current circuit of a monitoring device and such contacts are electrically connected with one another by metal which may possibly flow out of the crucible into the furnace compartment. A baffle or guide plate, preferably a sheet-metal deflector or guide, engages beneath the contacts and extends at least over the region of the furnace compartment spanned by the crucible. The baffle plate is exposed to the thermal radiation emanating from heating elements.

    Abstract translation: 一种用于熔化或加热金属的炉子,其包括由耐火衬里包围的炉室和用于熔炉中的熔炉布置在炉室中。 接触件设置在炉室的下部区域处,这些触点设置在监控装置的电流回路中,并且这些触点通过金属彼此电连接,金属可能从坩埚流出到炉室中。 挡板或引导板,优选地是片状金属偏转器或导向件,接合在触点下方,至少延伸到由坩埚跨过的炉室的区域上。 挡板暴露于从加热元件发出的热辐射。

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