Abstract: A process for removing silicones from fibers, yarns or two-dimensional textile materials by the action of aqueous preparations, which may contain surface active equilibration catalysts for organosiloxanes, and optionally detergents, wetting agents and alkali carbonates, optionally at elevated temperatures.

Abstract: A zoom lens having at least three components, or, from front to rear, a first component of positive power, a second component of negative power and a third component with the air separations between the successive two of said three components being varied to effect zooming, whereby said first component is constructed with, from front to rear, a bi-convex first lens, a second lens of negative power and a third lens of positive power.

Abstract: The invention provides a novel method for controlling various kinds of pests harmful against sanitation and agriculture by applying an organosilicon compound, never used hitherto for such a purpose, to the body of the pest or distributing the organosilicon compound over the site or field infested therewith. The organosilicon compound is a cyclic organopolysiloxane compound represented by the general formula ##STR1## in which each of the groups R is a hydrogen atom or a monovalent hydrocarbon group independently from the others, at least one of the groups denoted by R in a molecule being a monovalent hydrocarbon group, and n is an integer in the range from 3 to 7.

Abstract: A water-proof support of photographic paper comprising a substrate and a white pigment-containing resin layer provided on at least one surface of the substrate, in which the resin layer comprises a white pigment dispersed in a polymer binder made by polymerization of a unsaturated compound containing a tetraacrylate ester of pentaerythrithol alkylene oxide adduct. An adhesive layer may be provided between the substrate and the white pigment-containing resin layer.

Abstract: A watertight camera having incorporated therein a strobe device, wherein said strobe device and the camera body are connected with each other by a hollow pipe made watertight by an elastic member so that the strobe device is movable between a retracted position and a projected position, whereby said strobe device is held stationary either in the retracted position or in the projected position by the frictional force exerted from the elastic member to the hollow pipe.

Abstract: The chicken coops of this invention are built up of modular parts, the basic element being partitions separating individual cells from one another in which cells egg laying hens are confined. Each such partition has an uppermost edge which extends obliquely relative to one of the vertical edges of the partition and forms an acute angle therewith. The lowermost portion of each partition is wider than the major extension thereof. This outjutting extension serves as support for a conveyor band onto which the eggs roll from the said cells.

Abstract: The temperature-controlled fluid friction clutch, suitable especially for a cooling fan, comprises a rotor which is arranged in a housing, rotatably in relation to the housing, forming at least one shear gap for the viscous fluid transmitting the torque. A scraper conveys the viscous fluid according to the dynamic pressure principle out of a working chamber containing the rotor into a reservoir chamber. The scraper is connected with the housing and lied radially opposite to the external circumference of the rotor, forming a scraper gap. The housing consists of a material the coefficient of thermal expansion of which is greater than that of the material of the rotor. In this way the scraper gap is enlarged with rising temperature, whereby the pump power of the scraper is reduced with rising temperature. The clutch unites good cold-start behavior with low temperature-actuation hysteresis in the operationally hot condition.

Abstract: Before injecting a flowable hardenable mass for anchoring a fastening member in a borehole, a coating solution is sprayed into the borehole for securing any drilling dust remaining on the borehole surface. A device for introducing the hardenable mass into the borehole includes a feed duct for injecting the mass. A container holding a coating solution is provided in the device. Another duct laterally surrounds the feed duct and forms an annular passage and a tube extends from the container to the annular passage for spraying the solution onto the borehole surface.

Abstract: A compact zoom lens is constructed with, from front to rear, first, second and third lens units of positive, negative and positive refractive powers, respectively. A diaphragm is positioned in or adjacent the second lens unit. The second lens unit and the diaphragm are stationary. When zooming from the wide angle end to the telephoto end, the first and third lens units are axially moved in such a manner that each of the separations between the first and second lens units and between the second and third lens units is increased monotonically.

Abstract: A destructible container is arranged to maintain the components of a multi-component settable mass in separate regions until they are ready to be mixed for anchoring a fastener member in a borehole. The container is made up of an elongated outer cartridge and an inner cartridge positioned within the outer cartridge so that a space for one of the components is formed between the inner cartridge and the outer cartridge. The multi-component mass includes a resin component filled into the outer cartridge and a hardenable component filled into the inner cartridge. The space within the outer cartridge is divided into two separate regions, preferably one following the other in the elongated direction of the outer cartridge. The resin component is present in each region, however, a thixotropic agent is included in one region but not the other so that the viscosity of the resin component is greatly increased within the one region.

Abstract: A distance measuring device for a camera of the kind measuring distances to a plurality of spots within a photo-taking image plane gives accurate data of distance measurement. The device comprises in combination signal projecting means arranged to project a distance measuring signal onto the spots of the image plane one after another; signal receiving means arranged to receive a reflection signal resulting from the distance measuring signal and to produce measured distance data one after another according to the part thereof at which the reflection signal is received; and measured distance data selection means arranged to select, from among the measured distance data obtained one after another from the signal receiving means, a data fluctuating to a less degree than a predetermined value as an effective measured distance data.

Abstract: A drive for the pivot arm of a pivoted arm punching machine includes an electrical drive motor arranged to drive a driving gear wheel which, in turn, is in meshed engagement with and drives a driven gear wheel secured to the pivot arm. A braking mechanism arranged to stop the driven gear wheel when the drive motor is stopped. The braking mechanism includes a brake lining which is pressed against the driven gear wheel by a brake plate. The brake plate is actuated by a pneumatic cylinder located within the punching machine when the drive motor is stopped.

Abstract: In a channel press for producing bales, preferably tied, of non-metallic waste materials, such as office waste and the like, a press piston is reciprocably mounted in a press channel or shaft into which the waste material is introduced. A knife member is mounted on and is movable with the press piston. A stationary counterknife member is located in the press channel. At least the stationary knife has individual teeth each formed with a point. The teeth are located along a line directed oppositely relative to the line of the cutting edge of the movable knife member.

Abstract: In the disclosed system shifting light-measuring modes are shifted by restricting the view angle of a light sensitive element or by producing differences between a first light measuring circuit and a second light measuring circuit, each having a different light measuring range. A correction circuit determines aperture corrections for mode changes. When the exposure is controlled, the output of the light measurement is corrected by the output of the correction circuit.

Abstract: The bicycle gear hub constructed particularly as a five-speed hub with a back-pedalling brake comprises a single planetary transmission (27), of which the internal gear (55) and the planet carrier (29) can be coupled through ratchet locking mechanism (83, 89) alternately with a drive sleeve (81) which is axially displaceable upon shifting of the gears of the gear hub and which is intended to be coupled to a drive sleeve (81) coupled to a driver (11). The internal gear (55) comprises a control shoulder (93) for alternate controlling of the two ratchet locking mechanisms (83, 89). A further ratchet locking mechanism (71) which connects the internal gear (55) to the hub sleeve (7) is controlled by the axial movement of the internal gear (55). The planet carrier (29) is coupled to the hub sleeve (7) through a constantly engaged ratchet locking mechanism (67).

Abstract: Mounting apparatus for an irradiation device, such as a sunlamp or the like, wherein a mounting bracket pivotally supported on a frame has an irradiation device operatively supported thereon and wherein a drive motor pivotally moves the mounting bracket relative to the frame. A connection mechanism interposed between the drive motor and the mounting bracket includes bearing recesses formed in the mounting bracket, a lifting nut having a pair of articulated pins engaging in the bearing recesses and a lifting spindle driven by the drive motor and having the lifting nut operatively mounted thereon. A mechanically actuated release lever engages the lifting spindle for moving the articulated pins out of engagement with the bearing recesses, and a spring interposed between the frame and the mounting bracket applies a spring biasing force pivotally urging the mounting bracket in a direction for lifting the mounting bracket when the articulated pins are moved out of engagement with the bearing recesses.

Abstract: A class of novel organosilane compounds are disclosed as represented by the general formulaRSi(OCH.sub.2 CF.sub.3).sub.3,in which R is an atom or group selected from the class consisting of a hydrogen atom, unsaturated monovalent aliphatic hydrocarbon groups having from 2 to 20 carbon atoms, monovalent aryl groups and monovalent organic groups having from 3 to 20 carbon atoms and containing at least one hetero atom, i.e. an atom other than carbon and hydrogen atoms, such as oxygen, halogens, sulfur and nitrogen, the said hetero atom-containing organic group being bonded to the silicon atom through a carbon-to-silicon linkage. Several particular compounds belonging to the class were synthesized and identified.

Abstract: The disclosed head moving device linearly and intermittently moves a head, such as a recording or reproducing head, a predetermined unit amount. A moving mechanism linearly moves the head in response to the rotation of an output shaft of a motor. A rotation component operatively connected to the output shaft of the motor rotates in response to the rotation of the output shaft so that one revolution of the rotation component corresponds to the predetermined unit amount of movement of the head, and an arresting element arrests the rotation component every revolution.

Abstract: A prestressed grouted anchor has a portion of an axially extending prestressed tension member grouted in a receiving material while the remaining portion of the tension member extends from the grouted portion. The remaining portion is separated from the grouted portion at a selected breaking point by reducing the tensile strength of the tension member as the result of exposing it to the action of heat, such as developed in an exothermic chemical reaction. If the tension member is prestressed and the resulting elastic elongation is maintained during the heating action with the elongation being greater than the elongation required under the heating action for effecting the severing of the tension member, then with progressive heat the tensile strength of the tension member is reduced and the elastic elongation progressively changes to plastic elongation with the tension member finally severing automatically at the selected breaking point.

Abstract: An oil-sealed rotary vacuum pump includes a pump system and an electric drive motor connected by a drive shaft and located within a housing. The housing is divided by a partition into two separate compartments with the pump system in one compartment and the drive motor in the other compartment. The drive shaft extends through a passage in the partition between the two compartments and the passage is arranged so that any leakage flow is directed from the motor compartment into the pump system compartment.