baber/WOPTO huggingface dataset:
Patent GB-1307908-A (GB)
Title: Alumasc ltd taps for dispensing beverages
IPC: B67D1/14
Filed: 1970-04-03
Abstract: 1307908 Valves ALUMASC Ltd 19 April 1971 [3 April 1970] 15803/70 Heading F2V A beverage dispensing tap having a main closure member 14 actuable by lever 23 as disclosed in Specification 1,220,824 is provided with an anti-frothing restriction defined by a conical plug 37 and a fitting 30 having a complementary bore 36. The plug 37 is connected by webs 40 to bush 38 and is adjusted axially relative to fitting 30 by rotation of nut 31 which advances the tap body axially of fitting 30, the nut 31 being secured against axial movement relative to inlet 11 by spring clip 33. Stud 35 in the inlet 11 is received in an axial groove in fitting 30. The plug 37 may arrest flow completely to allow maintenance downstream thereof. The lever 23 may be displaceable about the axis of stem 16, after unseating the closure member 14, to bring abutment 53 beneath lug 52 of nylon ring 48 to allow the tap to remain open.
Patent GB-1307989-A (GB)
Title: Self-cleaning ovens
IPC: F24C14/02
Filed: 1969-05-01
Abstract: 1307989 Self-cleaning ovens CREDA ELECTRIC Ltd 14 April 1970 [1 May 1969] 22213/69 Heading F4W [Also in Division C1] A self-cleaning oven arranged to be raised to a temperature above the normal heating range but below the normal heat-cleaning range (i.e. to a temperature of 550-750‹ F.) for cleaning has an inner surface coating of vitreous enamel containing a catalyst and having a finish providing an extended surface area over which the catalyst is effective. The catalyst is the oxide of a non-toxic transition element such as TiO 2  or MnO 2 , and the enamel slip contains heatresistant cement, calcined alumina or calcium aluminate which coagulates at the firing temperature to give the uneven finish. The oven may be an electrically heated oven of the kind described in Specification 1,241,556 or of the kind described in Specification 1,282,099.
Patent GB-1308157-A (GB)
Title: Manufacture of gramophone records
IPC: B29C33/30
Filed: 1970-02-24
Abstract: 1308157 Gramaphone record stamper TELDEC TELEFUNKEN - DECCA SCHALLPLATTEN GmbH 24 Feb 1970 8914/70 Heading B5A [Also in Division B4]  A method of making a stamper 8 for gramophone records comprises providing profiling in the centre portion of an intermediate matrix 5, which has been made from an original, and making a stamper from the matrix by electrodeposition, with the profile serving for centring the stamper. A centring disc 2 is secured to a laquer original 1 by a screw 3 and nut 4 and a master 5 is made by electrodeposition. A mother 7 is made from the master and the stamper 8 is electrodeposited on the mother, the profiling 9 corresponding to the profiling 6 and serving to centre the stamper on the mould. Alternatively the disc 2 is replaced by a disc (11), Fig. 4 (not shown), having a concentric groove (12) facing the lacquer original. A matrix (13) is then deposited on the original to form a composite matrix with the disc, the groove (12) forming the centring profiling. The stamper is then made from the matrix. In a further embodiment, an intermediate matrix (21), Fig. 5 (not shown), has a centring groove (23) machined in its surface, the groove subsequently forming an annular bead (24) in a matrix (22).
Patent GB-1310652-A (GB)
Title: Adamantane 1,3- dicarboxylic and diacetic acid esters
IPC: C07D295/088
Filed: 1971-05-04
Abstract: 1310652 Adamantane derivatives G D SEARLE & CO 4 May 1971 12985/71 Heading C2C Novel adamantane derivatives of the general formula wherein n is 0 or 1, X is an oxygen or sulphur atom, Alk is a C 2-6  alkylene group separating the atoms attached thereto by at least 2 carbon atoms and -NRR<SP>1</SP> is a di-C 1-6  alkylamino, pyrrolidino, piperidino, morpholino or N- methylpiperazino group, and acid addition and alkyl halide quaternary ammonium salts thereof are prepared (a) by reaction of a dicarboxylic acid halide of the general formula wherein Hal is a chlorine or bromine atom, with an amine of the general formula HX-Alk- NRR<SP>1</SP>; (b) when X is an oxygen atom, by reaction of a dicarboxylic acid of the general formula with an aminoalkyl halide of the general formula Hal-Alk-NRR<SP>1</SP> in the presence of an alkanol; and (c) when X is an oxygen atom, by reaction of a dicarboxylic acid halide of the second general formula above with a chloroalkanol of the general formula HO-Alk-Cl and reaction of the resulting dichloride of the general formula with an amine of the general formula HNRR<SP>1</SP>; followed optionally by salification of the product. Dicarboxylic acid halides of the second general formula above are prepared by reaction of the corresponding dicarboxylic acid of the fourth general formula above with a thionyl halide. Pharmaceutical and disinfectant compositions having antibiotic and antiviral activity comprise, as active ingredient, an adamantane derivative of the first general formula above or an acid addition or alkyl halide quaternary ammonium salt thereof, together with a suitable carrier.
Patent GB-1312257-A (GB)
Title: Wire fences
IPC: E04H17/10
Filed: 1969-07-24
Abstract: 1312257 Wire fencing J B CORRIE & CO Ltd and A G CORRIE 15 July 1970 [24 July 1969] 37343/69 Heading EIB [Also in Division F2] Wire fencing comprises a plurality of plastics coated wires passing through posts 12 and being secured thereto at one end by anchors 15 and at the other end by tensioning devices 16, the anchors and the devices having a bonded coating of plastics. Plastics sleeves 21 are provided where the wires pass through the posts. The tensioning devices each comprises a sheet metal frame with a malleable steel cylindrical drum rotatably mounted therein and having a steel ratchet with a floating pawl at one end and a square cross-section portion at the other, the end of the wire being threaded through a hole in the drum. Each anchor comprises a cylindrical drum with a diametrical hole therethrough and a square end plate at each end. Wooden posts may be replaced by angle iron posts having a bonded plastics coating, the wires passing through plastics bushes. Droppers and line posts are provided. Wires are secured to wooden line posts by stainless steel staples and to coated angle iron line posts by U- section plastics coated wire clips, or they may pass through holes therein.
Patent GB-1315502-A (GB)
Title: Presses
IPC: H01R43/048
Filed: 1970-05-05
Abstract: 1315502 Making electrical connections; stamping; shearing BUKNDY CORP 5 May 1970 29638/71 Divided out of 1315501 Headings B3A B3Q and B3W The subject-matter of this Specification is identical with that described in Specification 1,315,501, but the claims are concerned with the combination of press and replaceable shearing adjunct.
Patent GB-1316977-A (GB)
Title: Apparatus for determining the completion of transesterification readtion in the production of synthetic resins
IPC: G01N27/06
Filed: 1970-07-16
Abstract: 1316977 Peak value detection GOSUDARSTVENNY NAUCHO-ISSLEDOVATELSKY I PROEKTNY INSTITUT LAKOKRASOCHNOI PROMYSHLENNOSTI 16 July 1970 34442/70 Heading G4H The arrival of a peak value of a variable is determined by successively measuring the variable and comparing each present measured value with the next preceding one, a change in the polarity of the difference of the compared values indicating the arrival of a peak, changes in polarity which last for less than a predetermined number of comparisons being ignored. In the arrangement described (Fig. 3), sensors 1, 10, etc., sense the conductivity of several transesterification reactions and are each connected in turn to a measuring bridge 22 whose output fires a phantastron 24 giving a length related pulse. Clock pulses from 25 are gated to counter 28-38 for the length of the pulse and adder 39 compares the value in counter 28-38 with the previous value in the corresponding one of registers 40-46. The conductivity of the transesterification process is expected to fall to a minimum and then rise again, but with possible kinks in the conductivity curve prior to the minimum. Depending upon whether the present value in counter 28-38 is greater or less than the previous value, OR gate 75 or 76 is opened to pass a pulse via a decoder 86-100 to the corresponding one of counters 112-114, 115-117, etc. With the conductivity decreasing, upon a counter, 112-114 say, reaching a count of 5, confirming the decrease, AND gate 120 opens to set flip-flop 103 which puts the decoder into a state ready to accept a change in polarity of the difference indicating the expected minimum conductivity value. Counter 112-114 also resets. Upon the change in polarity of the difference, counter 112-114 begins to count and upon reaching the count of six, indicating a persistent change in conductivity and passage of the minimum, gate 127 opens to operate relay 7. If a kink occurs in the downward conductivity curve there is a polarity change before the counter 112-114 reaches the count of six and the system resets. Each present count in counter 28-38 is transferred to the corresponding register 40-46 by a signal from OR-gate 75 which opens AND gate 68 feeding clock pulses into the corresponding register 40-46 until the count therein equals that in store 28-38.
Patent GB-1323262-A (GB)
Title: Cooking appliance
IPC: A47J37/06
Filed: 1971-03-09
Abstract: 1323262 Cooking appliances W M BARDEAU 9 March 1971 6398/71 Heading A4D A cooking appliance comprises a heatconductive base plate 38, preferably having a controlled heater 30, a heat-conductive cover platen 52, preferably having a controlled heater 32, and movable to matingly overlie the platen 38 to provide an internal food-receiving cavity (60), Fig.3 (not shown), opening downwardly peripherally, through a passage (58), Fig.3 (not shown) between a wall 54 and the inner surface of a channel 40, into the channel 40 which preferably discharges collected grease and juice through a spout 44 into a collecting vessel 46, the channel 40 and the wall 54 extending around at least part of the periphery of platen 38 and platen 52 respectively. Two such appliances may be combined with base platens on a common basehousing and cover platens on upper housings individually pivoted to the base housing, springs being provided to retain the upper housings in a raised position. When platen 52 mates with platen 38, projections 56 on a flange 50 are supported on an outer wall 42 of channel 40. Alternatively, adjustable projections may be provided, or the projections 56 may be omitted if thin articles are to be cooked. The platens may be circular, rectangular or square, and are preferably coated with polytetrafluoroethylene. The platens and drainage channel may be inclined to the horizontal downwardly towards spout 44. The or each upper platen may be housed on an upper structure pivoted to a frame at locations spaced from the pivotal attachment of the frame to a base housing Fig. 9 (not shown) the upper structure being in substantial balance about its axis of pivoting to the frame. A rectangular base platen may be surrounded on three sides by the drainage channel and on the fourth side by an upstanding wall, the cover platen being surrounded by a depending wall on three sides and by a bearing wall on the fourth side, the depending wall engaging in the drainage channel and the bearing wall sealing against the upstanding wall when the platens mate, Fig.9-11 (not shown). The surface temperature of the platens is preferably about 400‹F.
Patent GB-1324982-A (GB)
Title: Differential thermal analysis apparatus
IPC: G01N25/48
Filed: 1970-07-27
Abstract: 1324982 DTA device L OERTLING Ltd 27 July 1970 [14 May 1969] 24702/169 Heading H1K Apparatus for differential thermal analysis comprises an enclosure 3 in which are supported aluminium crucibles 4, 5 on separate nickel platforms 6, 7 in a hole or recess in each of which the bead of a thermocouple 8, 9, respectively, is welded, the crucibles containing a sample material and a reference material respectively. The bead is inserted into a conical hole (12) Fig. 2 (not shown) or a blind recess, Fig. 4 (not shown), prior to welding. In alternative embodiments the platforms are both of copper or silver, brass, aluminium, gold, stainless steel, platinum, rhodium-platinum, chromium-nickel, aluminium-nickel; "Chromel", "Alumel" or "Inconel" (Registered Trade Marks). The crucibles may be silver, platinum, platinumrhodium or "Inconel". Suitable metals for the thermocouple junctions are: chromium-nickel : aluminium-nickel; iron : constantan; copper : constanton; iridium - platinum : palladiumgold; iron-gold : chromium-nickel; gold-palladium-platinum : palladium-gold; and platinum: rhodium-platinum. The following abridgments are included in this series since the Specificataons were through an error, not allotted to this group. References to them will be found in the name index to this volume.
Patent GB-1326629-A (GB)
Title: Sealed container
IPC: B65D55/08
Filed: 1970-10-12
Abstract: 1326629 Containers with heat shrunk coverings M FUJIO 12 Oct 1970 48409/70 Headings B8F and F31 A cylindrical sleeve 1 heat shrunk around a closed container 2 has a circumferential tear line 4 below which it is bonded to the container by a heat adhesive. A pair of score lines 7 extend from the line 4 to the root of a tongue 6.
Patent GB-1327393-A (GB)
Title: Fluid pressure control systems
IPC: B64C13/00
Filed: 1969-10-15
Abstract: 1327393 Fluid pressure servo-control systems AUTOMOTIVE PRODUCTS CO Ltd 13 Oct 1970 [15 Oct 1969] 50673/69 Heading G3P [Also in Division F2] A multi-channel control system for aircraft wing flaps has a common control linkage 62, 63 and includes, in each channel, a floating lever 54 connected to the control spool 17 of a servomotor 10 having a fixed piston 11. During normal operation, spool 17 connects the servomotor control lines 26, 27 to supply 28 and exhaust 33 which connect with source 22 and reservoir 23 via release valve 34 whose spool 35 is held in the position shown against bias 96 by pressure in chamber 93 connected to source 22 via 92, 91, groove 89 in pilot spool 73, and 77, 79, 38. If the control spool 17 of any channel should seize, the pivotal movement of the floating lever about point 53 displaces rod 67 against springs 68 to raise pilot spool 73 thereby connecting line 91 to exhaust line 82 to depressurize chamber 93, allowing spring 96 to move release spool 35 rightwards to interconnect opposite sides of the piston 11 via 42, 46, 44, 45, 47, 43 and 27. The supply is also admitted to chamber 87 to maintain the pilot spool raised allowing unimpeded movement of rod 66. Accumulator 49 is connected to the bypass circuit of piston 11 to prevent cavitation such as might be caused by restrictors 46, 47. Snub valves 102, 103 (see Division F2) dampen servomotor movement at the opposite ends of the working stroke by restricting outflow from chambers 19, 21. Micro-switch 122 provides an indication of the channel failure. Relief valves 101 relieve excess control pressures. In a system employing a single-acting servomotor, the release valve simply allows free flow into and out of the servomotor upon channel failure. The common control linkage may alternatively comprise a cable or a telemotor.
Patent GB-1329586-A (GB)
Title: Electronic gating circuits
IPC: G11C27/02
Filed: 1971-11-30
Abstract: 1329586 Stabilizing sampling circuits BRITISH AIRCRAFT CORP Ltd 30 Nov 1971 [4 Dec 1970] 57808/70 Heading H3T In a signal sampling system in which signals from a transistor pass through a gate to an output terminal, variations of the quiescent current of the transistor are detected during non-sampling times and modify the output signals during sampling times to compensate for any D.C. component added to the sampled signal by said variations. Video signals are fed into a class A amplifier VT8 whose quiescent current is compared with that of the transistor VT1 by transistors VT9, VT10 via transistors VT6, VT7, which conduct in the non-sampling times, the current through the transistor VT1 being adjusted to set the base of VT9 to zero volts. When gates VT2, VT3 are operated by signals A, B the transistors VT6, VT7 are cut off and the quiescent current from VT8 plus the video signal current are fed to output terminal E. A capacitor C1 may be used as a store. At least one further gate VT4, VT5 may be provided for providing a sample at a later time. Transistors VT11, VT12 discharge the stores when driven at G. Transistor VT13 is turned on whenever video signals are present in order that it is the quiescent current variations of VT8 which are compensated for. It is stated that the circuit may be used in a "split gate" type rangefinder in which the two outputs E, F are respectively fed to inverting and non- inverting inputs of a differential amplifier to indicate incorrect positioning of the sampling pulses over the video waveform.
Patent GB-1330805-A (GB)
Title: Immunization methods against toxic effects of bacterial  infection
IPC: C12N9/66
Filed: 1972-04-21
Abstract: 1330805 Treatment of bacterial-elastase infection RESEARCH CORP 21 April 1972 18599/72 Heading A5B The toxic effects of infection of a non-human animal by elastase-elaborating bacteria are minimized by parenteral administration of purified bacterial-elastase or immune serum containing antibodies against bacterial-elastase. The bacterial-elastase may be derived from Pseudomonas aeruginosa. The immune serum may be prepared by parenteral administration of bacterial elastase to another animal.
Patent GB-1337112-A (GB)
Title: Vehicle hydraulic transmission systems
IPC: F15B21/0427
Filed: 1970-05-28
Abstract: 1337112 Hydraulic control circuits RUBERY OWEN & CO Ltd 27 May 1971 [28 May 1970] 25657/70 Heading F1P [Also in Division F2] In an hydraulic control circuit, Fig. 1 (not shown) e.g. for a straddle carrier, a booster pump (3) feeding a variable delivery pump (2) draws liquid from a main tank (4) via an auxiliary tank (5), the return line 15, Fig. 2 leading to a thermostatically controlled diverter valve which has a piston 16 positioned according to the liquid temperature to direct the return liquid via outlets 12 and/or 13 to the auxiliary tank (5) and/or main tank (4). The piston 16 is moved from the 'cold' position shown by the expansion of a quantity of wax within element 18, the 'cold' position being adjustable by means of screw 23 and plunger 20. The cooler main tank may be in the form of a radiator with natural or forced cooling, and the auxiliary tank is provided with an electric heater to provide initial heating. The diverter valve may be remotely controlled in accordance with the temperature at some other point in the circuit.
Patent GB-1343112-A (GB)
Title: Couplings
IPC: F16D55/2265
Filed: 1971-05-28
Abstract: 1343112 Bolting GIRLING Ltd 28 May 1971 [14 April 1970] 17602/70 Headings F2H and F2E A caliper member 10 of a disc brake is coupled to a torque plate 12 by a pin comprising a stud 32 having threaded portions 34, 36 of different pitches which respectively engage in a threaded bore 33 of the torque plate 12 and an internally threaded portion 30 of a sleeve 26 surrounding the stud, the stud being turned to axially preload the sleeve against the torque plate 12 to improve the sleeve's resistance to shear stress. The threaded portion 36 of the stud is necked at 37 to shear at this point when a predetermined load is reached during the pre-loading of the sleeve. The caliper member 10 is axially slidable on the pin. Specification 1,299,433 is referred to.
Patent GB-1344811-A (GB)
Title: Angular accelerometer
IPC: G01M1/22
Filed: 1972-09-15
Abstract: 1344811 Measuring angular acceleration electrically TEXACO DEVELOPMENT CORP 15 Sept 1972 42820/72 Heading G1N An angular accelerometer comprises an annular conduit 32 filled with an electrically non-conductive fluid and having a barrier 37 in the conduit which thereby provides two ends for the conduit, there being a pair of Piezoelectric or Piezo-resistive elements 38, 39 provided one for each of the conduit ends and disposed adjacent thereto, the transducers being embedded in a ring 16 so that a face of each transducer is in direct contact with the fluid and responds to pressure variations therein. The ring 16 and another ring 17 are supported on a disk 18 having a hub 19 attached by torsion springs 22, 23 to an accelerometer frame 11 carrying a graduated scale 12 adjacent on index pointer 43 on ring 16. It is shown that the e. m.f. produced by such a Piezo-electric is proportional to the angular acceleration and the mean radius of the annular conduit. An arrangement having four barriers and four pairs of elements 13 applied to determining eccentricity of rotation of a drill bit Figs.3-5 (not shown).
Patent GB-1351581-A (GB)
Title: Automatic letter opening device
IPC: B26D1/15
Filed: 1972-12-04
Abstract: 1351581 Cutting apparatus KETCHAM & McDOUGALL Inc 4 Dec 1972 [19 May 1972] 55813/72 Heading B4B [Also in Division B2] Apparatus for opening envelopes and the like, comprises an envelope supporting platform having an inlet end and an outlet end, feed rollers 34, 34A for conveying the envelope from the inlet end to the outlet end, cutting discs 54, 58 for cutting off an edge of the envelope thereby producing a scrap strip and cutters 74, 76 positioned adjacent the outlet end of the platform for chopping the scrap strip into pieces. The cutting discs 54, 58 are rotated by a motor 20, Fig. 1, via gears 26, 28, 30, 32, 50, 52, the feed roller 34 being rotated by the gear 32. The feed roller 34A is mounted on a lever 36 which is urged by a spring 38 to bring the roller 34A into contact with the roller 34. The cutter 74 is provided with an opening 80 providing a pair of cutting edges for co-operation with cutting edges 90a, 90b on the cutter 76, the latter being oscillated by means of a lever 64 via an eccentric drive means (70) Fig. 3 (not shown). In operation, an envelope is placed on the platform 12 and pushed through a guide slot 16, the initial movement raising a lever 42 which actuates a microswitch to energize the motor 20. The feed rollers then feed the envelope past the cutting discs so that the scrap piece is caused to pass through the opening 80 in the fixed cutter 74 and so chopped into pieces by the oscillating cutter 76; the scrap pieces fall into a scrap receptacle. In a modification, the cutters 74, 76 are replaced by a pair of cutters 120, 122, Fig. 8, arranged to rotate in opposite direction by means of suitable gearing, Figs. 6, 7 (not shown).
Patent GB-1352233-A (GB)
Title: Electrically controlled gas valve
IPC: F16K31/02
Filed: 1971-09-08
Abstract: 1352233 Partly electromagnetic switches MACLAREN CONTROLS Ltd 23 Dec 1971 [8 Sept 1971] 41829/71 Heading H1N [Also in Division F2] An electrically controlled gas valve comprises a closure member 1, Fig. 1, connected to armature 12 of electromagnet 13 via a pair of lever arms 3, 5 pivotally mounted at 4. The arms are in the form of bimetallic strips. When the arrangement shown is energized the bimetallic arm 5 is heated by heater 8 and thereby bends to move armature 12 towards the energized electromagnet 13 until it is magnetically attracted to it and held. Thus the switch 9 opens and the subsequent cooling and straightening of arm 5 causes the closure member to be lifted off its seat 2. If desired the bimetallic arm 3 may be associated with a separately energizable heater to adjust the degree of opening of the valve 1, 2. The arms 3, 5 may be extended and support contacts of further switches. Another arrangement has a pilot gas valve carried by an extension of arm 5 so as to open when the arm 5 is heated. This enables a pilot burner to ignite and thereby heat a thermocouple to generate electricity which is used to energize the electromagnet to cause subsequent opening of the main valve 1, 2 which then remains open as long as the pilot burner is alight. To avoid the pilot valve remaining open when ignition at the pilot burner has not occurred, a device breaks the circuit to the heater for a predetermined time. In another embodiment, Fig. 2 (not shown), the arms between the armature and closure memare not bimetallic and the electromagnet is mounted on one end of a lever (17), and is moved towards the armature when a wire (21) attached to the lever at the other side of the pivot, is heated. The wire may be replaced by a rod or a wax element.