摘要:
The invention is directed to an apparatus for positioning a patient's head for producing a remote X-ray photograph of the skull of the patient. The apparatus includes a device for holding the skull, which is mounted at one end of a cross carrier which is connected to an X-ray diagnostics installation for producing slice exposures of the jaw of a patient. The skull holder contains ear button holders which are adjustable, as well as a nose support for positioning the patient in the skull holder. The apparatus also includes a device for mounting a film cassette, which device is adjustable in a direction towards the radiation source of the X-ray diagnostics installation. In order to be able to make reproducibile temporomaxillary joint exposures, the skull holder is mounted to pivot around a horizontal axis so that the head of the patient can be adjusted in various inclined positions with relation to the sagittal plane.
摘要:
A refined fiber having an average length of 2 to 4 millimeter, a filler retention value of at least 18%, and a green strength value of at least 1.8 mJ/mm2 is described. The fiber is obtainable by a process wherein never dried yarn or sliver having a length of at least 1 meter is refined, by at least the step of feeding the yarn or sliver and a liquid into a refiner, which includes refiner fillings having a body surrounding a central hole, and at least one inlet for the yarn or sliver. Thus obtained fibrillated fiber may be used for making friction materials, gaskets, brake pads, or brake linings.
摘要翻译:描述平均长度为2至4毫米,填料保留值为至少18%,生坯强度值至少为1.8mJ / mm 2的精制纤维。 纤维可以通过至少将纱线或纱条和液体进料到磨浆机中的步骤进行精制而将未干燥的纱线或纱线长度至少为1米的纱线获得的方法,该方法包括具有围绕 一个中心孔和至少一个用于纱线或条子的入口。 这样获得的原纤化纤维可用于制造摩擦材料,垫圈,刹车片或制动衬片。
摘要:
An apparatus for supporting an X-ray unit in a vertically adjustable manner. The apparatus includes a frame having two posts and a carrier supported between the posts. The post are slotted and the carrier includes guide members received within the slots. The carrier also includes a counterbalance for supporting the carrier between the post. The counterbalance includes a support cable and force element.