baber/WOPTO huggingface dataset:
Patent GB-1323802-A (GB)
Title: Overheat control for refrigeration apparatus
IPC: F25B13/00
Filed: 1971-08-20
Abstract: 1323802 Refrigerating TRANE CO 20 Aug 1971 [31 Aug 1970] 39252/71 Heading F4H [Also in Division G3] In a refrigerated transport container, wherein a space 20 (Fig. 1) is to be maintained at a desired temperature by the circulation of refrigerant by compressor 12 via reversing valve 24 through heat exchangers 18, 14, under control of a thermostat switch 14a, there is provided an "overheat" sensing thermostat 46 which is arranged to de-energize a solenoid 40a of a fuel valve 40 thereby cutting off fuel to a compressor engine 30 to shut down the refrigerator system if a temperature, e.g. in excess of 75 F., is sensed by 46. This shut-down facility however is overridden during the initial temperature reducing period (i.e. from start up until the control point of thermostat 14a is reached) when the initial temperature might be in excess of 75 F. such a s when a warm body is introduced to the space 20. This override is effected by a switch 60a (Fig. 2) of a relay 64, which shunts the thermostat 46 and maintains the fuel valve 40 open. At the desired temperature of the space 20 the thermostat 14a closes, energizing a relay 60 to close switch 60a which energizes reversing valve solenoid 24a thereby switching the refrigerant circuit from a cooling to a heating mode. In addition, relay 64 is energized via switches 62b, 60a, 64b, 68 thereby closing switch 64c to hold relay 64 energized and opening 64a which switches the fuel valve solenoid under control of thermostat 46. Accumulation of frost on heat exchanger 18 is sensed by a differential pressure switch 48 which closes at a predetermined pressure differeatial and energizes a defrost relay 62 thereby closing switch 62c. This effects reversal of valve 24 to the heating mode position so that hot compressed refrigerant gas is supplied to heat exchanger 18. A switch 50 opens when defrosting is completed. The closing of 62c also energizes the "overheat" relay 64 which opens switch 64a and the fuel valve solenoid is again under control of the thermostat 46. Thus the system will be shut down if the space temperature exceeds 75 F. due to malfunction causing continuous operation of the defrost mode.
Patent GB-922789-A (GB)
Title: Low temperature thermionic energy converter
IPC: H01J45/00
Filed: 1959-11-19
Abstract: 922,789. Thermionic converters. RADIO CORPORATION OF AMERICA. Nov. 19, 1959 [Dec. 15, 1958], No. 39308/59. Class 39 (1). A device for converting low-temperature, i.e. less than 2500 C., thermal energy directly into electrical energy comprises an envelope containing a cathode 18, a collector 20, a gas having an ionization potential higher than the work function of the cathode, and an ionizing electrode 22 having a work function higher than the ionization potential of the gas for causing contact ionization of the gas, the ionizing electrode being electrically insulated from the cathode. Suitable cathode compositions are sintered tungsten particles impregnated with barium compounds, thoriated tungsten and caesiated tungsten, while the collector may be a mixture of barium and strontium oxides on a nickel base, caesiated silver oxide or caesiated tungsten oxide. Preferred ionizing electrode materials include iron, tungsten, molybdenum, tantalum, platinum, nickel and rhenium while suitable ionizable gases include the vapours of caesium, rubidium, potassium, sodium and francium. In the experimental embodiment of Fig. 2, both the cathode 18 and ribbon ionizing electrode 22 are electrically heated and the collector 20 is also heated to render its surface sufficiently conducting. However, in a practical embodiment, Fig. 6, heat sources, e.g. flames, nuclear reactors, solar energy and radio-active energy are accommodated in, or communicate with, the inner wall 104, Fig. 6, of an annular envelope, the cathode being in the form of annular discs 110, stacked with ionizing electrodes 112 and insulating spacers 114, e.g. of beryllium or aluminium oxide, and surrounding wall 104. The outer wall 106 of the envelope serves as the collector. Since the converter is an extremely low voltage device, utilizing a load resistance of about 0.01 ohm., the insulating envelope portions 108 may be replaced by metal seal members, each comprising an annular bellows-like structure having a resistance of, e.g. 1 ohm between its inner and outer sealing points. Preferably, although not necessarily, a bias potential equal to the difference between the work functions of the cathode and ionizing electrode is applied between these electrodes, e.g. by battery 90, Fig. 2. Alternatively, this bias may be applied as an A.C. signal to obtain an A.C. output current, e.g. by use of the oscillator and feedback circuit shown in Fig. 6, a suitable D.C. bias level being established by battery 127. Useable lower current, higher voltage output is obtained from secondary inductance 128. A higher D.C. output voltage may be obtained by use of a plurality of converters electrically coupled in series. Prior art devices which include a combination cathode and ionizing electrode comprising relatively low work function cathode portions for relatively low temperature electron emission and relatively high work function ionizing portions for providing contact ionization of the gas are referred to.
Patent GB-903571-A (GB)
Title: Method and apparatus for sensing an electromagnetic wave-effecting constituent of a material
IPC: G01N22/04
Filed: 1958-12-05
Abstract: 903,571. Waveguides. BELOIT IRON WORKS. Dec. 5, 1958 [Jan. 23, 1958], No. 39334/58. Class 40 (8). [Also in Group XXXVI] The moisture content or variation in corn position of a material is indicated by applying to an associated waveguide a source of U.H.F. radio energy and measuring the absorption effect of the material on this energy. Fig. 1 shows the application to measuring the moisture content of a web 17. Energy from a microwave source 10 is passed via horn 13 into a waveguide 15 which may for example be a hardened steel strip, the remote end of the waveguide being connected to absorber 25 to prevent reflection of energy. Power sensing devices 20, 21 such as crystal detectors are coupled to the microwave energy travelling along the waveguide 15 and the outputs are compared in a device 23 which may for example be a ratio meter or bridge which measures microwaves standing wave ratios. The difference or ratio between the outputs of the two sensing devices 20, 21 is indicative of the moisture absorbed in the web 17. The waveguide may comprise a metallic conductor having a thin coating of wear resistance material such as aluminium oxide ceramic and be in sliding contact with the web. In a modification, Fig. 2 (not shown), the microwave energy source the sensing devices, the absorber and the waveguide are all embedded in a dielectric material the web travelling in sliding contact with it. As shown in Fig. 3, the waveguide conductor may have different dielectric materials 34, 36 on its two sides. The conductor may be of copper and the dielectric material of " Teflon " (Registered Trade Mark). The guide may be constituted by a flat bar of electrically conductive material embedded between two different dielectrics, Fig. 4 (not shown), it may have a series of transverse grooves, Fig. 6 (not shown), for slowing the velocity of the surface wave travelling along the length of the bar. The bar may have notches of varying shapes, Figs. 7-9 (not shown), filled with dielectric material. The energy may be launched on to the waveguide in such a mode that the energy intersecting the web to be tested is independent of the energy travelling in the dielectric for example the energy may be transmitted in TM11, TM12 mode, Fig. 12 (not shown). With this mode the conductor of the waveguide may be split into two halves as shown in Figs. 10 and 13 (not shown), with a dielectric between the two. Specification 887,556 is referred to.
Patent GB-1358380-A (GB)
Title: Surgical bags
IPC: A61M39/12
Filed: 1972-01-17
Abstract: 1358380 Surgical bags PETER STEER DEVELOPMENTS Ltd 17 Jan 1972 39422/73 Divided out of 1358379 Heading A5R A surgical bag of plastics material has a tube connector as disclosed in the parent Specification 1358379.
Patent GB-1017628-A (GB)
Title: Device for automatic closure of bag openings by means of a twistable sealing strip
IPC: B65B51/08
Filed: 1963-10-08
Abstract: 1,017,628. Closing bag-necks. H. S. V. JAERUND. Oct. 8, 1963 [Nov. 19, 1962], No. 39545/63. Heading B8C. [Also in Division B3] A sealing strip 6 (Fig. 1) for closing the neck of a bag or the like is fed through rollers 7, 8, a length is cut off by a guillotine 25, 26 (shown displaced in the exploded view of Fig. 1), and is bent by arms 14, 15 turning about a pin 36 to dispose it about a bag neck gathered in a slot 12 so that the ends of the strip are within reach of the jaws 16, 17 of a device which twists them. After the bag neck has been pushed manually into the slot 12, pushing aside a blade 82 which serves to guide the sealing strip 6 to the correct side of the slot 12, arms 9, 10 on plates 30, 31 turning about a shaft 29 gather the back neck in the slot 12. At the end of this movement a pin 35 on the plates 30, 31 clears a pawl 34 to permit a dog 32 on the shaft 29 to turn the pawl 34 about its shaft 33 so that portions of the pawl on opposite sides of a slot 44 engage the arms 14, 15 to cause them to bend the sealing strip around the bag neck. The movement of the shaft 29 and of the plates 30, 31 is derived from an oscillating cam 37 which also controls the operation of the twisting device 16, 17 (see Division B3) and further provides an intermittent drive through a oneway clutch 24 to the feed rollers 7, 8. The twisting device 16, 17 is driven by a belt 23 oscillated through an arm 49 from the cam 37. The guillotine 25, 26 is operated through an arm 27 from a pin 28 on the plate 30. A guide blade 20, with a bifurcated portion 19, serves to straighten the strip 6, which may consist of aluminium or of plastic reinforced with wires. The feed roller 7 may have grooves to receive the wires reinforcing the strip 6.
Patent GB-871574-A (GB)
Title: Improvements in or relating to sound reproducing apparatus
Inventor: COOPER PATRICK BERNARD
IPC: H04R5/02
Filed: 1958-02-02
Abstract: 871,574. Binaural loud-speaker systems. DECCA RECORD CO. Ltd. May 4, 1959 [Feb. 2, 1958], No. 39639/57. Class 40 (4). Loud-speakers are rotatably mounted on oppositely placed doors of a gramophone cabinet so that opening the doors spaces the loudspeakers further apart. As seen in Fig. 7 a loudspeaker is mounted behind a grille 53 in a cylinder 52 pivotally mounted between brackets 54 in the curved portion of a wrap-round door 51 hinged to the back of a cabinet 50. A similar door and loud-speaker is hinged to the other side of the cabinet. The door may have a grille at its curved portion so that when the door is shut the loud-speaker cylinder 52 may be rotated so as to direct sound outwardly through the door. When the door is open the cylinder 52 may be directed according to preference. The brackets 54 may be made flexible so that the cylinder 52 may be detached and be stood, or hung, in any preferred position away from the cabinet. A tie rod may connect the cylinder 52 with the cabinet so that as the door opens the cylinder is rotated with its loud-speaker always facing forwardly of the cabinet, (see Fig. 6 not shown). As shown in Fig. 5, the loud-speakers may be hinged to one edge of a grille 42 the other edge of which is hinged to the door 41. When the door 41 is swung open on its hinge to the back of the cabinet the loud-speakers may be placed in a variety of positions and at a variety of angles on each side of the cabinet. The loudspeakers may be mounted so as to be slidable outwardly of the cabinet.
Patent GB-1195653-A (GB)
Title: Resonant Cavity Having Adjacent Coupling Elements to Provide a Rejection Frequency
Inventor: KOMMRUSCH RICHARD STEPHEN
IPC: H01P7/04
Filed: 1968-08-21
Abstract: 1,195,653. Cavity resonators. MOTOROLA Inc. 21 Aug., 1968 [15 Sept., 1967], No. 39966/68. Heading H1W. A cavity resonator having both a resonant frequency and a rejection frequency is formed by inner and outer coaxial cylinders, and is provided with first and second coupling elements located at a pair of points on the outer cylinder and positioned within the cavity, the pair of points being so located that the lines joining them to the axis define an angle less than or equal to 90 degrees; this angle, which is adjustable, determines the rejection frequency, which may therefore be arranged to increase the attenuation of frequencies close to the resonant frequency. As shown, Fig. 1, the outer conductor 10 and the inner conductor 16, the length of which may be adjusted by a plunger 19 to vary the resonant frequency, form a resonant line shunted by the tap closure 13. The input and output couplings 61 and 63, Fig. 6, may be loops or (Fig. 7, not shown) probes, and pivotal mountings are described (Figs. 11 to 13, not shown) whereby they may be adjusted and clamped at different angles with respect to one another.
Patent GB-1162919-A (GB)
Title: Gasoline Fuel
IPC: C10L1/22
Filed: 1967-08-31
Abstract: 1,162,919. Gasoline motor fuels. ATLANTIC RICHFIELD CO. 31 Aug., 1967 [3 Oct., 1966], No. 39981/67. Heading C5G. A gasoline motor fuel contains 1-20 volume per cent of tertiary butyl alcohol and from 20 to 100 p.p.m. by weight of a corrosion inhibitor of the formula wherein one R 1  is a branched or straight chain alkenyl group having one double bond and from 8 to 16 carbon atoms with the other R 1  being hydrogen and R 2  is a group of the formula -C n H 2n - wherein n is 2, 3, or 4. The corrosion inhibitor can be prepared by monoesterifying an alkenyl succinic acid, e.g. in which R 1  is dodecenyl, with ethylene, propylene or butylene glycol. An N-beta-hydroxyethyl ethylene diamine derivative may be included as a carburetter detergent, in lieu of part of the specified weight of the corrosion inhibitor, and may be conveniently added as a salt formed with the corrosion inhibitor. Suitable carburetter detergents are (a) the mixture of the two isomeric amides produced by condensing N-beta-hydroxyethyl ethylene diamine with an ester such as methyl stearate or methyl oleate and (b) that in which the nitrogen atom of the ethylene diamine other than the one to which the betahydroxyethyl group is attached forms part of an imidazole nucleus. The gasolines used may be regular or premium grades and may also contain up to 3 c.c. of tetraethyl lead per gallon and tricresyl phosphate.
Patent GB-1188845-A (GB)
Title: Device for Typing an Auxiliary Character on a Typewriter.
Inventor: BARGER LARRY NELSON
IPC: B41J1/02
Filed: 1967-09-01
Abstract: 1,188,845. Typewriters. L. N. BARGER. 1 Sept., 1967, No. 40030/67. Heading B6F. A manually positionable auxiliary type member for attachment to a typewriter comprises a support member 1 and a resilient type lever 20 bearing an auxiliary type character 50, the type member being positionable adjacent the platen 90 of the typewriter and adapted to be struck by a type lever 98 of the typewriter. The type member is formed of thermoplastic material such as polycarbonate, and includes spaced-apart spring clips 60 for attaching the member to type guides 81 of the typewriter. The type element is registered laterally with the aid of a prong (71), Fig. 1, not shown, fitting into a guide channel between the type guides 81, and forwardly by abutment between the forward end of the spring clips 60 with a vertical portion of the type guides. The type lever 20 is adjustable vertically by a knob 30 bearing a scale, which knob is coupled to the type lever 20 for vertical movement thereof through a cam or rack-and-pinion or screw coupling.
Patent GB-1008574-A (GB)
Title: Improvements in or relating to a rocket
IPC: F02K9/86
Filed: 1964-10-02
Abstract: 1,008,574. Rockets. DYNAMIT NOBEL A.G. Oct. 2, 1964 [Oct. 2, 1963], No. 40351/64. Heading F3A. Combustion gases from a solid-fuel rocket exhaust via the annular space 11 around the core 6 of a nozzle, on a shoulder of which core is an axially and radially movable ring 7; the gas passes through the gaps 12 between the core 6 and ring 7 so that the position of the ring is automatically adjusted to provide a sonic gas flow through the nozzle. The ring 7 and outer body 4 form a diffuser 11. The body 4 may have a conical extension with slots to exert an injection action and direct a controllable stream of external air round the rocket post. The nozzle may be disposed in front of the rockets centre of gravity the motor housing of which is tapered so that the gases acting therefrom provide a component with a propelling effect. The tail unit has a diameter equal to the maximum rocket diameter.
Patent GB-908886-A (GB)
Title: Underframe for rail vehicles
Inventor: HAMBLIN LESLIE FRANK
IPC: B61F1/06
Filed: 1959-11-30
Abstract: 908,886. Railway vehicle underframes. ROLLS-ROYCE Ltd. Feb. 28, 1961 [Nov. 30, 1959], No. 40540/59. Class 103(6). An underframe for a railway vehicle, e.g. a diesel locomotive, comprises a pair of inner longitudinally extending side frame members 10, Figs. 1 and 3, disposed substantially in line with the thrust on buffers 9 carried on buffer beams 11 extending across the ends of the members 10, and outer side frame members 13 disposed outside and parallel to the members 10 and stopping short of the buffer beams, longitudinal stresses being transferred between the inner and outer side members by gussets or steps 17, 18 disposed between the ends of the members 13, through transverse webs 15 connecting the members 10, 13, and the side faces of the members 10 and by gussets or steps 16 between the ends of the members 13 and the buffer beams 11. Further transverse webs 15 also connect the members 10, 13. A ballnot weight 19 extends across the members 10 and serves as an anchorage for the ends of bearers 20 for the engine 3. Further transverse members 21, between the members 10, carry ballast supports 23.
Patent GB-922167-A (GB)
Title: Improvements relating to machine tools
IPC: G05B19/04
Filed: 1961-11-13
Abstract: 922,167. Programmed control systems. SCULLY-ANTHONY CORPORATION. Nov. 13, 1961 [Dec. 29, 1960], No. 40598/61. Class 38 (6). [Also in Group XXII] For a data-controlled machine tool, apparatus comprises code means, such as embossed tags or punched cards, for identifying tools, each code means being separate from, but associated with, the tool it identifies. Each tool is held in a storage magazine 24 between a fixed jaw 28 and a movable jaw 29. The tools can be released at stations 27A or 27B by mechanisms 33, 34 which may be operated by solenoids. Each tool can be transferred to an operating station 22 by an arm 41 having two recesses each having a fixed jaw 44 and a movable jaw 45. The jaw 45 is moved to closed position against a spring 53 by a spring 56 engaging an arm 55 normally held in a withdrawn position by a rotary solenoid 54. Switches 61, 62 check that there is a tool in a recess and is latched, and a switch 63 checks when a jaw 45 is in the released position. When the arm is moved to pick up a tool, the tool swings the jaw 45 to close it and operation of the switch 61 releases the solenoid. In operation, the arm moves from position 71, picks up a tool from the holder 27A, moves to position 73, then to position 74 where it picks up the tool from the advancing spindle 69, moves to position 75 and inserts the new tool, moves to position 78, moves to insert the used tool into the magazine, retires to rest position 78, moves back to pick up a new tool and takes up position 76. The arm is then ready to pick up the tool in the spindle, insert a new tool and recommence the cycle. Each tool is associated with a key 85, Fig. 4, which is inserted in a slot 82 in the magazine and turned to cause certain of two series of contact fingers 107 to project from a holder 81. The fingers are sensed by individual contact brushes 131, Fig. 7, in two pairs of holders 121, 122 and 123, 124 at the stations 27A, 27B. A magnetic or punched tape 160, Fig. 8, actuates relays in a storage device 153, the signals being compared with the readings for the sensing devices 121-124. The tools are moved past the sensing devices by a stepping device 152 which rotates the magazine (or matrix). The tape 160 contains information not only to select a tool but information as to which tool is to be returned to the magazine after a new tool has been fitted. Alternatively, a store 161 may control replacement of a tool. Master control apparatus 155 for co-operating with the tape reading apparatus may comprise cam-controlled switches. In a modification, the code means comprises punched paper or steel cards 204, Fig. 12. The cards are sensed physically or photo-electrically. When a tool is extracted from the magazine, its card is taken with it by spring clips or a magnetic holder. The card is then held at a " storage " position until the associated tool has completed its operation.
Patent GB-1196526-A (GB)
Title: Speed Control Apparatus
Inventor: O'CALLAGHAN GERALD FRANCIS
IPC: H02P29/00
Filed: 1968-08-26
Abstract: 1,196,526. Automatic speed control. EATON YALE & TOWNE Inc. Aug.26, 1968 [Aug.25, 1967], No.40646/68. Heading G3R. Rotation of a motor 27 is transmitted to an output shaft by an electromagnetic coupling II of the kind which provides a driving torque if one winding W1 is energized and a braking torque if a second winding W2 is energized. The invention concerns the energization of the windings to maintain a constant speed on the, output shaft. A composite error signal is generated which has a D.C. component, which varies as a function of the deviation of the actual speed from a desired speed, and an A.C. component, this signal being applied to means whereby when the signal exceeds a first threshold the first winding is energized and when it falls below a second threshold the second winding is energized so that the average voltages applied to the windings vary as functions of the D.C. component to maintain the desired speed. A tachogenerator G1 gives an A.C. signal whose amplitude varies with speed; this signal is rectified and partially smoothed to give a D.C. with superposed A.C. The latter is of substantially constant amplitude since as speed rises, the frequency of the signal also Increases and the smoothing circuit becomes more effective. To this is added a D.C. bias representing the desired speed and set by a potentiometer (R32) across a zener diode Fig.2 (not shown). The composite error signal thus formed is amplied to the inputs of two overdriven amplifiers (37, 39) which respectively deliver square pulses to the two windings of the coupling whenever the signals rises above or falls below the respective threshold. A switch is provided to disconnect winding W1 and to connect the amplifier of winding W2 to a source of a suitable braking signal to bring the shaft 13 to a halt. The brake threshold can be set by a potentiometer (R18) Fig. 2 (not shown) to adjust to separation between the two thresholds giving either a dead band or an overlapping region where the two windings are energized alternately. The brake winding may be replaced by a second driven winding allowing the load to be driven in both directions.