摘要:
A tool holder for drilling and chiselling tools includes a receiving sleeve forming a bore with a conically shaped section for receiving a conically shaped shank on a drilling or chiselling tool. Shoulders extending in the axial direction of the sleeve are formed on the surface of the conically shaped section for interengagement with grooves in the drilling or chiselling tool shank so that the sleeve can rotate the tool. Locking elements in the form of axially elongated pins are mounted in the receiving sleeve so that the pins extend transversely of the sleeve axis and tangentially of the conically shaped bore section. The pins are spring biased toward the bore section and are displaceable generally radially relative to the bore. The pins are arranged to seat within an annular groove in the shank of the tool.
摘要:
A working tool holder for a drilling or chiseling device includes a holder sleeve with an axially extending conically shaped section within a holder opening or bore. A working tool to be secured in the holder sleeve, has a tool shaft with a conically shaped section to engage the conically shaped section in the holder opening. Grooves are formed in the tool shaft to receive inwardly projecting ridges in the holder opening. The tool shaft has recesses to receive the pins mounted in the holder sleeve. The tool shaft and an actuating sleeve extending around the holder sleeve each have connecting threads for securing the working tool in the holder.
摘要:
An in vitro method for the risk stratification of patients with stable arteriosclerosis, especially stable coronary artery disease, is disclosed wherein the concentration of procalcitonin is determined in the circulation of such patients using a highly sensitive PCT assay, and wherein within the range of PCT concentrations in the typical normal range of healthy individuals cutoff values are defined which distinguish groups of individual patients with stable arteriosclerosis in accordance with personal cardiac risk, and patients are allotted to one of said risk groups on the basis of their individual PCT concentrations.
摘要:
The present invention relates to materials and procedures for evaluating patients suffering from cardiovascular conditions, particularly acute coronary syndromes. In particular, the presence, amount, or enzymatic activity of glutathione peroxidase-1 in a patient sample, alone or in combination with one or more other markers, provides diagnostic and/or prognostic information. While applicable to diseases and conditions in which inflammation is generally manifested, the methods and compositions described herein are particularly applicable to acute coronary syndromes, including conditions selected from the group consisting of unstable angina, non-ST-elevation non-Q wave myocardial infarction, ST-elevation non-Q wave MI, and transmural (Q-wave) MI.
摘要:
A stand for a drilling tool includes a support column with a carriage movably mounted on the column. A carrier member for a drilling tool can be secured to the carriage with support sections on the carrier member in engagement with support surfaces on the carriage. One of these support surfaces is provided by the eccentric circumferential surface on an eccentric peg which is rotatably mounted in the carriage. The support section engageable with the peg has a catch projection which prevents displacement of the carrier member from the carriage when the eccentric surface on the peg is aligned opposite the corresponding support section on the carrier member. The projection extends outwardly from the support section by an amount at least equal to the eccentricity of the circumferential surface of the peg.
摘要:
A protective device for partially covering a working tool (11) of a hand-held power tool (10) includes a hood-shaped protective member including a tubular connection union (22) projecting therefrom, a closing element (25) in its closing position (31) which closes an opening (23) of the connection union (22) and in its release position (32) and which the opening (23) of the connection union (22) keeps open, and a pivot support (30) for pivotally supporting the closing element (25) for displacement between its closing (31) and release (32) positions.
摘要:
A masonry-slitting apparatus has a housing (1) containing a drive unit (2) for a slitting member (4), and a trolley (3) on which the housing (1) is pivotally mounted about a rotary bearing (6) located in a first end region of the housing. The housing (1) has a first handle (10) in the first end region and a second handle (9) in a second end region at the opposite end from the first end region. Each handle (9, 10) has a substantially cylindrically shaped gripping surface (12, 13) extending parallel to one another and disposed at right angles to a disk plane of the slitting member (4). An electric switch (5) is located in the gripping surface (13) of the first handle (10) and a locking switch (11), actuating an arresting element (8), is located in the gripping surface (12) of the second handle (9).
摘要:
An in vitro method for the risk stratification of patients with stable arteriosclerosis, especially stable coronary artery disease, is disclosed wherein the concentration of procalcitonin is determined in the circulation of such patients using a highly sensitive PCT assay, and wherein within the range of PCT concentrations in the typical normal range of healthy individuals cutoff values are defined which distinguish groups of individual patients with stable arteriosclerosis in accordance with personal cardiac risk, and patients are allotted to one of said risk groups on the basis of their individual PCT concentrations.
摘要:
A grinding tool, in particular a concrete grinding tool, comprising a drive spindle (1) driven by a motor in the working rotational direction (A) having a tool receptacle (7) at its free end. The tool receptacle (7) is provided with a flange (2) non-rotationally disposed on the drive spindle (1) and a nut (3) that can be threaded onto the free end (6) for clamping the tool (5) against the flange (2). The tool receptacle (7) further comprises an anti-rotation device (4) that prevents a rotation of the tool (5) relative to the drive spindle (1) in the working direction of rotation (A) of the drive spindle (1).
摘要:
A dust protection cover for a rotary grinding tool and having a base (1, 11, 21) fixedly securable with the tool housing (10) a substantially circular cover body (2, 12, 22) connectable with the base (1, 11, 21) for completely circumferentially covering the grinding disc (4, 14, 24) securable at the free end of the output shaft of the tool drive motor, and displaceable between a operational position, in which the cover body completely covers the grinding disc, and a release position in which the cover body exposes a portion of a grinding disc circumference, and a connection element(s) projecting from a side of the base (1, 11, 21) adjacent to the tool housing for securing the cover body (2, 12, 22) to the base (1, 11, 21) in the release position of the cover body.