Patents Assigned to FIRMA
  • Thermal insulating interlining in web form for textiles
    Patent number: 4035537
    Abstract: A thermal insulating and flotational interlining material comprising a tricot fabric flame laminated to a closed-pore cross-linked polyolefin foam provided with staggered slits so as to be extensible with the tricot. The slits may be about 1 to 10 mm long spaced longitudinally in rows by about an equal amount, rows being spaced about 1 to 5 mm from one another.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: July 12, 1977
    Assignee: Firma Carl Freudenberg
    Inventors: Klaus Heckel, Friedemann Klaffke
  • Movable partition
    Patent number: 4034524
    Abstract: A movable wall partition is provided on the bottom edge thereof with a caster for rolling the movable wall partition into position. The wall partition is provided at its lower edge with a bracing step which is urged by a jack mechanism into engagement with the floor to lift the caster from the floor and to raise the top edge of the wall partition into engagement with the ceiling.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: July 12, 1977
    Assignee: Firma Justin Huppe
    Inventors: Klaus Fromme, Bernd Walther
  • Washing machines
    Patent number: 4034583
    Abstract: A washing machine comprises a rotatable washing drum divided by an internal screw conveyor into a number of separate washing and rinsing zones. A chamber mounted on the external surface of the drum in the area of the principal washing zone communicates with the principal washing zone and contains a partition which defines a liquid-containing pocket. This pocket is at least partially filled with liquid throughout rotation of the drum and contains a heating device which acts to heat the liquid.
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: July 12, 1977
    Assignee: Firma Vosswerk GmbH
    Inventor: Heinz Miessler
  • Self adjusting brake system
    Patent number: 4033434
    Abstract: A pair of brake levers each having a brake shoe thereon acting in opposite directions against a brake drum have one end pivotally mounted and the other end of one brake lever is pivotally connected to a pivotally mounted operating lever. A rod is pivotally connected between the other brake lever and the operating lever. The operating lever is moved in the non-braking direction by an actuator and a spring pivots the operating lever in the other direction to apply the brake shoes. The end of the rod pivotally connected to the operating lever has a uni-directional drive thereon to adjust the effective length of the rod only when the operating lever is moved in the non-braking direction to compensate for wear of the brake shoes.
    Type: Grant
    Filed: February 26, 1976
    Date of Patent: July 5, 1977
    Assignee: Firma Siegerland-Bremsen
    Inventor: Helmut Henrich
  • Sealing device for a coke oven door
    Patent number: 4032409
    Abstract: A sealing device for a coke oven door comprises first and second spaced apart metal sealing blades having respective substantially aligned sealing edges adapted to extend outwardly from the edge of the coke oven door. A metal spacer is mounted between the first and second sealing blades at a location spaced inwardly from the sealing edges and an elastic sealing strip is located between the two blades and has an outer elastic sealing edge which is substantially in alignment with or projects outwardly slightly beyond the blade sealing edges, and bears against the door frame.
    Type: Grant
    Filed: June 11, 1975
    Date of Patent: June 28, 1977
    Assignees: Firma Carl Still, Ruhrkohle AG
    Inventors: Johannes Knappstein, Heinrich Tewes, Robert Woikowski
  • Exothermic lining for metallurgical purposes and method of making the same
    Patent number: 4031046
    Abstract: An exothermic lining material for metallurgical purposes comprises 40-60% of aluminium dross, 1-12% of fibrous filler which may be inorganic or a mixture of inorganic and organic materials, 3-6% of binder, such as a phenoplast and up to 1% of wetting agent. In order to make the lining exothermic it contains 7-25% aluminium powder and/or aluminium swarf, 3-15% iron oxide and/or manganese dioxide and not exceeding 6% cryolite. The lining may be made by a dry process in which flakes or pellets of the composition are pressed to a desired shape or by a wet process in which the aluminium dross is added to an aqueous preparation of the fibrous filler and wetting agent, whereafter the other components are added.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: June 21, 1977
    Assignee: Firma TIDO Chemisch-technische Produkte GmbH
    Inventor: Julianna Tisza
  • Excitation circuit for brushless synchronous welding generators
    Patent number: 4031455
    Abstract: An excitation control circuit for a brushless synchronous welding generator, in which the stator-mounted excitation winding is fed from a separate voltage source via two parallel-connected power transistors with independently adjustable base circuits, one transistor controlling the excitation current in the idling mode, the other in the welding mode. A change-over switch, responding to an electromagnet in the welding current circuit, alternatingly energizes one transistor, while blocking the other.
    Type: Grant
    Filed: November 25, 1975
    Date of Patent: June 21, 1977
    Assignee: Firma A. van Kaick "AvK" Generatoren- und Motorenwerke
    Inventor: Dieter Beck
  • Inclined pin wheel for yarn storage drum
    Patent number: 4028911
    Abstract: To maintain the windings or wraps of yarn on a supply drum formed of spaced rods, corrugations or the like, in a predetermined axial region thereof and to move the yarn axially along the drum, a pin-wheel gear or stub-tooth gear is arranged laterally of the drum, with the pins or stub teeth at an angle with respect to the axis of rotation of the drum, the pins or stubs being moved by engagement with the rods or corrugations of the drum as the drum rotates when driven to store yarn, the inclination of the pin-wheel gear providing an axially directed pushing force against the windings accumulating on the drum.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: June 14, 1977
    Assignee: Firma Gustav Memminger Verfahrenstechnik fuer die Maschenindustrie
    Inventors: Josef Fecker, Gustav Memminger
  • Method of producing tartaric acid
    Patent number: 4028407
    Abstract: Tartaric acid is produced by epoxidizing acid calcium maleate with aqueous hydrogen peroxide in the presence of a tungstic acid-containing catalyst to produce sparingly soluble acid calcium cis-epoxysuccinic acid, which is suspended in a solvent medium comprising an organic solvent or a mixture of organic solvent and water and treated with sulphuric acid. Calcium sulphate is formed and separated and the liberated organic acids consisting essentially of epoxysuccinic acid are then hydrolyzed in an aqueous medium to form tartaric acid. The organic solvent may be one in which epoxysuccinic acid is soluble and may be immiscible or miscible with water. If the solvent is imiscible with water the epoxysuccinic acid may be transferred to the aqueous medium in which it is hydrolyzed by liquid-liquid extraction.
    Type: Grant
    Filed: December 18, 1975
    Date of Patent: June 7, 1977
    Assignee: Firma/Osterreichische Chemische Werke Gesellschaft m.b.H
    Inventors: Klaus Petritsch, Peter Korl
  • Draw-off and take-up arrangement for circular knitting machines
    Patent number: 4027506
    Abstract: A knitted fabric draw-off and take-up arrangement for circular knitting machines, including an idle take-up roller and at least one driven draw-off roller. The tubular knitted fabric is passed from the draw-off roller to the take-up roller and is then returned to the draw-off roller after passing around the take-up roller and finally is returned and secured to the take-up roller thereby the tubular knitted fabric is wound onto the take-up roller and also drives this idle take-up roller.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: June 7, 1977
    Assignee: Firma C. Terrot Sohne
    Inventor: Hans Eugen Bitzer
  • Photoelectric start-stop controls for gas burner
    Patent number: 4028047
    Abstract: A device for electrically starting and stopping the operation of a gas burner in response to the shadow of the user's hand holding an object to be heated, the device including a solenoid valve in the gas line and a dimmer circuit with a directional photoelectric sensor, a switching amplifier, and a valve relay controlling the solenoid valve. The dimmer circuit can be bypassed for continuous operation by means of a selector switch.
    Type: Grant
    Filed: December 19, 1975
    Date of Patent: June 7, 1977
    Assignee: Firma Dr. Th. Wieland
    Inventors: Alfred Strunz, Jurgen Rohrer
  • Apparatus for receiving incandescent coke from respective coke ovens in a battery and for removing the coke in a closed chamber away from the battery
    Patent number: 4028192
    Abstract: An apparatus for receiving incandescent coke from respective coke ovens of a horizontally arranged battery of coke ovens, comprises a wheeled carriage which is adapted to move backwardly and forwardly along the battery of coke ovens. A coke cake receiving device is mounted on said carriage and includes a hood portion which is adapted to be aligned with each of the coke ovens upon movement of the carriage to the particular coke oven to be discharged and which also includes means for separating contaminants from the gases which are generated from the coke and for discharging purified gases. The coke hood portion has an openable and closable lateral door for receiving the irridescent coke from the associated oven and for closing the hood thereafter. The coke entering the hood is received by a tank arranged below the hood.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: June 7, 1977
    Assignees: Firma Carl Still, Hartung, Kuhn & Co. Maschinen fabrik GmbH
    Inventors: Martin Bender, Johannes Knappstein, Josef Stratmann
  • Non-resettable heat responsive safety switch
    Patent number: 4025889
    Abstract: A non-resettable heat responsive safety switch featuring two contact sleeves inside a jacket with a displaceable intermediate contact body of metal granulate, a preloaded compression spring biasing the contact body in the direction of contact interruption, a normally solid trigger body of fusible material holding the contact body in its normal, sleeve-bridging position, against the spring bias, until, at a critical temperature level, the trigger body yields to the spring which moves the contact body and breaks contact in the switch.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: May 24, 1977
    Assignee: Firma Microtherm GmbH
    Inventor: Gerhard Schwarz
  • Fitting for adjustably connecting a backrest member to a seat member
    Patent number: 4025109
    Abstract: A first mounting member can be secured to a backrest member of a seat, such as a seat of an automotive vehicle, and a second mounting member can similarly be secured to the seat member of the seat. A ring gear is provided on one of the mounting members and has inwardly directed teeth, and the other mounting member has a spur gear received within the ring gear and having outwardly directed teeth which mesh with play with the inwardly directed teeth. The spur gear has an outer diameter smaller than the root diameter of the ring gear by at least the height of one tooth and the number of inwardly directed teeth is different from the number of outwardly directed teeth by at least one. An eccentric arrangement is provided, extending through the gears and being movable to and from a position in which it effects relative radial displacement of the gears to such an extent as to eliminate the aforementioned play.
    Type: Grant
    Filed: January 19, 1976
    Date of Patent: May 24, 1977
    Assignee: Firma Fritz Keiper
    Inventors: Gerd Klingelhofer, Paul Werner
  • .alpha.,.alpha.-Diaryl-.beta.-(tert-amino)-propanols and pharmaceutical compositions containing them
    Patent number: 4025633
    Abstract: .alpha.,.alpha.-Diaryl-.beta.-(tert-amino)-propanols having the general formula: ##STR1## wherein R', R" and R.sup.1 to R.sup.10 represent certain specific substituent groups, exhibit a diuretic and saluretic activity.Pharmaceutical composition containing at least one compound of the general Formula II together with a pharmaceutically acceptable diluent or carrier. The pharmaceutical compositions may be in a form suitable for oral or parenteral administration.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: May 24, 1977
    Assignee: Firma Temmler A.G.
    Inventors: Wilhelm A. Behrendt, Bernhard Stieh
  • Guide tube for an arc welding gun
    Patent number: 4024374
    Abstract: Guide tube for an arc welding gun. The normal threaded connection between the guide tube in an arc welding gun and the holder for same has been improved for the purposes of electrical transmission by utilizing tapered threading for same. Particularly it has been found that the electrical conductivity through said parts is substantially improved if such conical threading is of such design that the conicity of the thread is at a ratio of 1:16 .+-. 20 percent.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: May 17, 1977
    Assignee: Die Firma Carl Cloos
    Inventor: Erwin Cloos
  • Method of producing wire mesh
    Patent number: 4023600
    Abstract: The invention relates to a method of producing wire mesh having relatively high elongation values and high pliability wherein the wire is not annealed until after having been welded up into the mesh.
    Type: Grant
    Filed: October 6, 1975
    Date of Patent: May 17, 1977
    Assignee: Firma Evg Entwicklungs-u Verwertungsgesellschaft
    Inventors: Gerhard Ritter, Klaus Ritter
  • Device for automatically shifting a workpiece on a nibbling machine
    Patent number: 4023788
    Abstract: A device for shifting a workpiece on a nibbling machine which includes a rotary eccentric shaft which is rotatable to move a nibbling punch into and out of association with a workpiece, comprises a workpiece holder which is driven by a first motor in one direction, and a second motor in a direction transverse to this direction. A switch control is connected to each motor and includes means for imparting a programmed control of the operation of the motors which is varied in accordance with a sensing of the thickness of the workpiece being operated upon so that the movement may be accomplished when the nibbling punch is not in contact with the workpiece. The apparatus includes a control switch in the form of a switch lug which is mounted for rotation with the eccentric shaft of the nibbling punch and which cooperates with a contactless switch member to cause a turning on and off thereof.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: May 17, 1977
    Assignee: Firma Trumph Maschinene AG
    Inventors: Eugen Herb, Theodor Petera
  • Hopper for predried fine coal carried on hopper trucks for coking batteries
    Patent number: 4024024
    Abstract: A hopper for predried fine coal for use with a coke oven battery or a plurality of batteries arranged in a row, comprises a wheeled support truck which is adapted to be moved along over the top of the oven batteries. A fine coal hopper is mounted on the truck and it includes a bottom discharge to facilitate discharging of the fine coal therethrough into the individual batteries. An inert gas system is connected to the fine coal hopper and it includes an inert gas distributor located alongside the hopper on the truck, and includes nozzles directed at a plurality of locations around the periphery and along the height of the fine coal hopper into the hopper and the fine coal contained therein.
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: May 17, 1977
    Assignee: Firma Carl Still
    Inventor: Johannes Knappstein
  • Apparatus for stacking sacks onto pallets
    Patent number: 4022334
    Abstract: An apparatus for automatically stacking sacks onto pallets, comprising several conveyor means, sack positioning and flattening devices, sack transfer devices, sack layer assembling devices, a packing plate assembly, an elevator platform, and actuating and control means wherein sacks supplied to the apparatus in a substantially continuous feed stream are flattened and assembled into sack rows, several sack rows are assembled into a sack layer, and several sack layers are successively stacked on a pallet. Empty pallets are automatically supplied to the elevator platform from a pallet magazine. The elevator platform cooperates with the packing plate assembly for transferring the sack layers onto the pallet. Fully loaded pallets are discharged automatically at the output side of the apparatus.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: May 10, 1977
    Assignee: Firma Fordertechnik Hamburg Harry Lassig
    Inventor: Harry Lassig