Abstract: A miniature motor with a revolution-detecting generator, the motor having a stator formed by a permanent magnet on the motor housing and a rotor consisting of a winding on a core. Electric current is fed to the rotor winding via current feeding brushes and a commutator. A revolution-detecting generator comprising a frequency-detecting coil for receiving changes of magnet flux made by teeth on stator and rotor components generates an induced voltage proportional to the revolution of the rotor, in which a noise-suppressing coil wound in a lapped state with the frequency-detecting coil is provided. The noise-suppressing coil and the frequency-detecting coil are connected with each other in a reverse phase, and the noise-suppressing coil is connected in parallel with the frequency-detecting coil via a high-pass filter connected in series.

Abstract: In space heaters with pressure atomization burners, which have a small combustion chamber volume, good mixing of air with fuel is achieved practically only in the case of relatively high air flow velocities, which leads, however, to difficulties in terms of ignition, especially at high operating voltages and low temperatures. The blower motor is therefore started first when putting the heater into operation, after which it is disconnected from the power source, so that the speed will again decrease, after which the high-voltage ignition and the fuel supply are turned on, so that the ignition can take place at reduced blower speed, and the high-voltage ignition is turned off and the blower motor is restarted after the flame has been recognized in the burner.

Abstract: A processing and sewing machine arrangement for preparing a seam which is uninterrupted on a seam side facing the needle of the sewing machine. The arrangement includes a shuttle thread disturbance detection arrangement and a control arrangement activating a stopping arrangement for stopping the sewing machine after the shuttle thread disturbance has been detected and after a stitch formation cycle which has been begun is completed. A regulating mechanism for setting stitch length is set into a reverse stitching mode by the control arrangement while the fabric being sewn is moved backward by one stitch length. After the shuttle thread has been fed in, thread is knotted by at least one stitch with the needle thread in the same insertion hole in which the old shuttle thread is located such that the old shuttle thread is correctly knotted with the needle thread.

Abstract: A water drain device of a revolving electric machine, wherein an oil reservoir chamber is formed at a position adjacent a bearing housing chamber in a housing having a rotor housing chamber and the bearing housing chamber, a rotor in the rotor housing chamber is supported by bearings in the bearing housing chambers, and an oil seal in slidable contact with the outer peripheral surface of the rotor is provided at a position adjacent the oil reservoir chamber. In the housing, an oil discharge channel opens in a direction in which gravity drains oil in the oil reservoir chamber out of the housing, a water discharge channel connects the rotor housing chamber and the vicinity of an outlet of the oil discharge channel, and an air vent channel connects the rotor housing chamber to the oil discharge channel through the oil reservoir chamber. A drain cover forming a fluid discharge channel is mounted in the vicinity of the outlet of the oil discharge channel and an outlet of the water discharge channel.

Abstract: A circulation respirator is capable of excess-pressure operation with a compressed gas source and an auxiliary pressure arrangement which brings about an increase in the pressure in the respiratory circulation. The apparatus includes measuring circuit connected to a pressure sensor for controlling the auxiliary pressure arrangement. Excess pressure is maintained in the respiratory circulation independently of the respiratory phase. The sensor is arranged as pressure sensor in the respiratory circulation only if the pressure falls below a preset positive nominal value of the pressure in the respiratory circulation.

Abstract: In a security revolving door assembly for persons, comprising one blocking sector (13) and one passage sector (12) or two passage sectors (12), a motor-driven revolving door (10), which can be blocked by means of a braking device controllable by an electronic control unit, is arranged in the door housing. Peripheral identification devices (46, 47) are connected to the electronic control unit. To ensure reliable entry and exit control, blocking, which cannot be overcome at certain angular positions of the revolving door (10), but which always makes it possible to leave the door housing, is provided. This is achieved by means of a blocking disk (23) which is in a rigid rotating connection with the revolving door (10) and has, in a blocking plane, at least one stop face pair (26/1-26/2, 27/1-27/2, 28/1-28/2) with two stop faces (26/1 through 28/2), each acting in one reaction direction.

Abstract: A device for displaying the present tide level in relation to high and low tide. The display using a clear rod and colored elements in a manner to give the impression of fluid in a rod and the height of the fluid representing the present tide level. The colored elements being moved passed the clear rod by a cut assembly. One of the colored elements being used represents the tide level when rising and the other represents the tide level when falling. The tide level can be displayed in hours to high or low tide.

Abstract: An improved cutting apparatus for horticultural use comprises a first cutting device, a second cutting device, and a retaining plate. The second cutting device has a plurality of second elongated holes disposed thereon serving as sliding rails on which rolling beads travel. The retaining plate comprises a plurality of through holes through which rolling beads are partially exposed. The retaining plate also comprises a plurality of elastic press pieces affixed thereto, with each of elastic press pieces having a press portion located at one end thereof for pressing the exposed portion of the rolling beads so as to ensure that first and second cutting devices make a reciprocating motion in a linear manner.

Abstract: This invention relates to a connection device for providing a connection between on electrical cable terminated by a plug and electrically insulated wires. It has application, for example, in telecommunications where a telephone instrument is connected by a lead with an appropriate plug to a jack provided in a wall panel. The jack requires connection to telephone wires on the opposite side of the wall panel.

Abstract: This apparatus is capable of preventing contamination in the interior of an airturbine hand-piece and its drive for use in dental treatment such as cutting a tooth. The apparatus comprises an airturbine drive air circuit, a discharge air circuit, and a chip air circuit for vaporizing cooled water, which serve as passageways for air at a relatively high pressure when the hand-piece is in operation and which are kept interiorly at a low air pressure when the hand-piece is out of operation. These passageways and change-over valves therefore are incorporated in a single body. When the hand-piece is inoperative upon completion of the treatment, it is possible to prevent various germs from penetrating from outside into the interior of the hand-piece. The apparatus can be reduced in a compact size and can be formed of plastics.

Abstract: An arrangement is described for the selective disengagement of the hammers in tripping mechanisms of shotguns with two barrels coupled side by side or superimposed. The arrangement comprises a connector mounted on the trigger and capable of pivoting lengthwise as well as transversely with respect to the tripping mechanism.The connector is provided with tripping teeth which interact with the tripping levers of the hammers. There is also a rocking arm attached to the connector and mounted on a selective push lever which is slidably guided in a transverse direction on the lower surface of the under guard member of the shotgun, so as to define two positions of the rocking arm and of the connector. Two modes are then possible in order to strike the firing pins by first utilizing a first hammer and then the other, or vice versa.

Abstract: The present invention pertains to a recirculating respirator for positive pressure operation, in which it is possible to switch off the elements generating the over pressure in case of excessively high oxygen consumption.A flow-measuring device is provided in the oxygen supply line, which is connected to a control unit. A warning device 36, and a switching device, for switching off the over pressure is also provided.

Abstract: A joint movable in all directions for linkages and Cardan shafts. The joint includes only two parts of identical design made from an elastically deformable plastic, wherein the coupling members of identical design are fitted into each other at a 90.degree. angle while elastic deformation takes place.

Abstract: The invention concerns a hearing device for a protective helmet with a receiving deice for auditory signals, that at the very least are deliverable from the earphones arranged on the inner surface of the protective helmet. The invention has as its basic function to reduce the volume of the helmet contruction and the weight of the hearing device in relation to the usual construction, and to make the positioning of the earphones on the ears of the helmet wearer unnecessary. The purpose will be met in that the earphones in the outer auditory canal of the helmet wearer will be developed as importable earplugs. The auditory signals that are supplied by a receiving device consisting of a receiver and a coupled transmitter will be transmitted from the transmitter of the receiving device over a wireless transmission line that is integrated into the earplug-receiver of the earplug.

Abstract: A vehicular trunk lid structure is formed by overlapping the end of the outer panel upon the end of the inner panel, to be followed by hemming process, wherein recesses are defined adjacent to the end of said inner panel, and said recesses are deepened toward and welded to said outer panel. By such arrangement, the weld bead due to the spot-welding is concealed inside the trunk room to be obscured from the outside and thus the need of finishing work to remove the weld bead is eliminated. As a consequence, an aesthetic improvement and a manufacturing cost reduction are accomplished.

Abstract: An apparatus for measuring the erythrosedimentation rate and carrying out other similar analyses through photometric reading, comprises one or more seats (9, 11) for receiving test tubes (P) inclined to a limited extent with respect to the vertical. Guide means (13) are provided for a skid (15) which is able to slide parallel to the test tube(s) (P) introduced into said seat(s) for the reading. On said skid (15), there are provided emitting and receiving members (19A, 19B) for a signal of optical type which goes through the or each test tube (P) during the reading scan. A motorization (3,5) moves said skid (15) along the test tube(s) for performing reading of the latter.

Abstract: A flow target plate arrangement for the fluidizing medium of a horizontal fluidized-bed reactor, consisting essentially of the fluidized medium supply lines, the collectors, and the flow admission tubes, the flow target plate is mounted exclusively at the passage of the central fluidizing medium supply line (1) in the pipe socket (7) of the pressure tank (6). Two collectors (2), to which flow admission tubes (3) are connected on both sides in the longitudinal direction of the pressure tank (6), extend from the fluidizing medium supply lines (1) according to the present invention, in the circumferential direction of the pressure tank (6). The other ends of the flow admission tubes (3) rest on at least one crossbeam (5). The crossbeams (5) are held by longitudinal beams (4), which are connected to the supply line (1).

Abstract: The present invention pertains to an end-fed rod antenna which is tuned, e.g., to the VHF range and has additional transmitting and/or receiving antennas for the mm-wave range.