Kozponti Banyaszati Fejlesztesi Intezet

Chinoin Gyogyszer Es Vegyeszeti Termekek Gyara Rt.

Varpalotai Szenbanyak

Varpalotai Szenbenyak

Kalman Simon

Janos Nemeth

Zoltan Ilyes

Karoly Bole

Andras Elekes

Sandor Virag

Agoston David

Gabor Nagy

Tibor Horvath

Jozsef Bohnert

Csaba Kiss

Agnes Udvardi

Ilona Simonidesz Nee Vermes

Matvas Martinko

Matyas Martinko

Jozef Bohnert

A mine excavator especially for heavy coal beds comprises a base on which the power loader and conveyor are provided and on which the roof support or shield is pivotally mounted. According to the invention, a back member connected to the roof plate and spaced above the base has a downwardly and forwardly swingable door which deposits caved material onto the conveyor at a forward portion of the main base.

Mining equipment, mainly for extraction of heavy beds

The invention relates to stabilized, prostaglandin-containing tablets with controlled rate of solubility, for local use and a process for the preparation thereof. The tablets according to the invention comprise 0.2 to 20% by weight of one or more natural or synthetic prostaglandins, 0.4 to 40% by weight of a non-toxic buffer, which adjusts the pH of the liquid film formed on the surface of the solid phase due to air humidity, to 3 to 5, 1 to 50% by weight of stearic acid, 0 to 15% by weight of an alkali earth metal stearate, 10 to 95% by weight of lactose and/or mannite, 0 to 15% by weight of a further granulation aid, 1 to 30% by weight of a disintegrating agent and optionally 0.5 to 10% by weight of a flavoring and aroma substance and are prepared under a pressure of 500 to 2000 kp./cm.sup.2. (49.03 to 196.13 MPa).

Stabilized, prostaglandin-containing tablets with controlled rate of

Growing community of inventors

Budapest, Hungary

Kalman Simon