baber/WOPTO huggingface dataset:
Patent GB-1100616-A (GB)
Title: Dust-free bench
IPC: F24F3/16
Filed: 1965-07-07
Abstract: 1,100,616. Removing dust &c. in industrial processes. BAKER CO. Inc. 7 July, 1965 [14 Aug., 1964], No. 28838/65. Heading F4X. An industrial work bench is formed as a plenum chamber 6 into which dust &c. is drawn through apertures 15 at the forward edge of the bench, the dust-laden air passing from the chamber 6 to a chamber 2 containing an impeller 4 discharging into a chamber 19 in which is mounted an interchangeable filter 20. Filtered air re-enters the space 21 above the work bench through a grille 22. The bench shown is provided with a hood in the roof of which are fluorescent lights 27. The side walls of the hood are also formed as plenum chambers and have at their forward edges apertures 16 into which passes some of the dusty air from the work-space 21. The side wall plenum chambers communicate with the bench plenum chamber 6 through ports 9, 9<SP>1</SP> (Fig. 4B, not shown). In a further arrangement described (Figs. 5 and 6, not shown) for two workers sitting face to face, the bench is provided at the forward edges with the apertures 15 as described above, but a cross flow of air is arranged in the working space 21. The air carrying dust &c. enters one side wall of an open ended hood through a grille therein and thereafter is ducted through a filter and thence to the other side wall also containing a grille through which the dust-free air re-enters the working space.
Patent GB-391141-A (GB)
Title: Fluosilicates of aliphatic and heterocyclic amines
IPC: C07D215/04
Filed: 1931-10-16
Abstract: The fluosilicates of aliphatic and heterocyclic amines, which are stated to have insecticidal disinfectant, moth proofing and wood preservative properties, are prepared by causing hydrofluosilicic acid to react with equivalent proportions of the appropriate amine in presence of water; preferably 30 per cent aqueous acid is used and the reaction effected below 60 DEG  C.  The resultant fluosilicates are obtained from the solutions formed by evaporation or are precipitated by the addition of alcohol or acetone.  The aliphatic amines may be purely aliphatic, alicyclic or aromatic-aliphatic and include such as contain unsaturated linkages and substituent groups. The heterocyclic amines contain at least one nitrogen atom in the ring and include such compounds containing also other groups or substituents or other heterocyclic atoms, and also compounds such as piperazines, naphthyridines and dipyridyls.  For insecticidal purposes the compounds may be used in powdered form or the aqueous solutions resulting from the reaction may be diluted and mixed with spreading agents.  Examples relate to the preparation of the fluosilicates of n-butylamine, di-n-butylamine, tri-n-butylamine, benzylamine, triethanolamine, b -amino-ethyl aniline, ethylene diamine, pyridine, piperidine, quinoline, 6 - ethoxy - 2 - amino - benzthiazole (see example 3 of Specification 295,295, [Class 2 (iii), Dyes &c.]), and of nicotine, and describe the physical properties and solubilities of the compounds.  The Specifications as open to inspection under Sect. 91 refers also to the use of aromatic fluosilicates, and contains additional examples according to which the fluosilicates of di-n-butylamine, aniline, pyridine, piperidine or p-phenetyl amino-thiazole are formed into aqueous solutions containing also fish oil soap or sulphonated oxidized petroleum oil for use as plant sprays.  The fluosilicates may also be used as dusting-powders, and may be mixed with other insecticidal materials or with solid or liquid inert diluents.  This subject-matter does not appear in the Specification as accepted.ALSO:Fluosilicates of aliphatic and heterocyclic amines are employed as insecticides, disinfectants and antiseptics.  The compounds may be used in powdered form or the aqueous solutions resulting from the reaction of the amines with hydrofluosilicic acid may be diluted and mixed with spreading agents.  The preparation of various specific compounds is described in examples.  The Specification as open to inspection under Sect. 91 refers also to the use of aromatic fluosilicates, and contains additional examples according to which the fluosilicates of de-n-butylamine, aniline, pyridine, piperidine, or p-phenetyl amino-thiazole are formed into aqueous solutions containing also fish oil soap or sulphonated oxidized petroleum oil for use in spraying plants. The fluosilicates may also be used as dusting powders and may be mixed with other insecticidal materials or with solid or liquid inert diluents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-533390-A (GB)
Title: Improvements in and relating to bit and shank attaching and separating devices
IPC: E21B19/18
Filed: 1939-10-31
Abstract: 533,390. Removing bits from shafts. CRAIG, E. Oct. 31, 1939, No. 29038. [Class 61 (iii)] [Also in Group XXII] In an apparatus for attaching and separating bits from their shanks, the shank is longitudinally supported in a casing and the bit is attached thereto by forcing the metal of the bit into recesses in the shank by means of projections caused by fluid operated levers. The apparatus consists of a hollow piston rod 6 which carries a number of pistons 2<SP>x</SP>-5<SP>x</SP> so that it may be operated by air and is returned by a spring 39. The cross-head 7 is provided with lugs in which are pivotally mounted spring pawls 30, 31 for forcing the bits 27 from their shanks and forked levers 13, 14 connected to levers 15, 16 by which anew bit is secured to the shank. A tool from which the bit is to be detached is passed through the hollow piston rod so that the end of the shank 26 engages a pin 33<SP>x</SP> projecting from a laterally slidable block 33. The piston rod is then operated so that the pawls 30 and 31 engage the end of the bit to force it off the shank, whereupon the block 33 is moved laterally.
Patent GB-791838-A (GB)
Title: Improvements in log feeding apparatus
IPC: B65G47/14
Filed: 1955-10-12
Abstract: 791,838. Log feeding apparatus. HEWITTROBINS, Inc. Oct. 12, 1955 [Oct. 18, 1954], No. 29056/55. Class 78 (1). A log-feeding apparatus comprises a stationary bin 1 with rotating floor 35, the logs being introduced through the open top and discharged through tangential shoot 7 on to endless conveyer 8. The floor 35 is provided with springs 21, and has upstanding lugs 36 which propel the logs, the latter being diverted by deflector 30. Any accumulated bark falls into duct 47 and is discharged at 51 by blades 48, 49 carried by the underneath of floor 35. The said floor is driven by motor 18 and is carried by rollers 11.
Patent GB-754914-A (GB)
Title: Stabilized multiplex frequency modulation receiver
IPC: H04J1/20
Filed: 1954-10-08
Abstract: 754,914. Frequency-modulation receivers; multiplex radio signalling; frequency discriminators. BOSE, J. H. Oct. 8, 1954 [Oct. 12, 1953], No. 29061/54. Class 40 (5). In a multiplex frequency-modulating broadcast receiver such as for receiving simultaneously two programmes relating to the same intelligence, to avoid cross-modulation a plurality of highly damped low-selectivity I.F. tuned stages are used, each insufficiently selective to reject signals outside the receiver pass-band, yet in combination doing so, and each showing a substantially linear phase/frequency characteristic throughout the pass-band. The discriminator may be of phase-shift type (Fig. 5) likewise with damped tuned coupling circuits 38, 42 and with output load resistors 47, 48 by-passed by capacitors 49, 50 the impedance of which capacitance is low relative to that of the resistance at the output frequencies of the discriminator, one of which may be a frequency-modulated sub-carrier demodulated by other means. Specifications 426,228 and 668,030 are referred to.
Patent GB-152678-A (GB)
Title: Improvements in pot or crucible furnaces
IPC: F27B14/00
Filed: 1920-10-14
Abstract: 152,678. Compagnie GÚnÚrale d'ElectricitÚ. Oct. 20, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Crucible furnaces.-An ordinary directheated pot or crucible furnace 1 is combined with a second crucible furnace 2 fired by its waste heat. Further, the gases, after passing through the furnace 2 and there depositing their dust, pass through a regenerator or recuperator. The furnace 2 serves to preheat the crucible and partially melt the charge before placing in the furnace 1.
Patent GB-334406-A (GB)
Title: Improvements in and relating to controlling devices for spring suspension systems of vehicles
IPC: F16F7/06
Filed: 1929-09-26
Abstract: 334,406. Zapaska, E. F. Dec. 7, 1928. [Convention date]. Vibration - dampers for spring suspensions of vehicles comprised in combination means for applying mechanical frictional resistance at an increasing rate to resist the movement together or apart of two vehicle members, and means for maintaining such frictional resistance at or near the maximum for a determined period after such members start the return movement. The mechanism is of the type comprising a brake drum and an internal friction band. A brake drum 1, Figs. 2 and 3, is secured to the vehicle frame 2 and contains a resilient friction band 5 adapted to be rotated by an oscillating lever 15 connected to the vehicle axle. On a central spindle 17 rotating with the band is loosely mounted an eccentric 30, around which is rotatably mounted the hub portion 41 of an application lever 40 having flexible arms 38, 39 engaging the end abutments 37 of the band 5. The arms 38, 39 are adjusted by screws 42, 142 to expand the band 5 and cause it to exert an initial pressure on the drum lining 9. For small oscillations, the band 5 rotates the eccentric 30 with it through a clutch 81, 32 of the fricton-disc type. On larger movement in a clockwise direction, as shown in Fig. 4, the bottom wall of a slot 33 in the eccentric 30 comes into contact with a stop pin 36 rigid with the drum, further rotation of the eccentric being thus prevented, and the further movement of the application lever 40 about the eccentric causes the arms 38, 39 to spread the abutments 37 and cause the band to apply increased frictional resistance at an accelerating rate. On the return movement, the eccentric 30 is first rotated with the band through the friction clutch, thus maintaining the maximum pressure of the band until the point when the stop pin 36 contacts with the upper wall of the slot 33, after which the frictional resistance decreases at an acelerating rate until the normal position of the vehicle parts is reached. A somewhat similar cycle occurs on movement in the opposite direction. The brake band has one end flexible and the other end rigid, in order to produce a servo action in one direction and thus increase the resistance on the rebound movement of the spring suspension. In the case of rapid movements, the action of the band is increased by centrifugal action.
Patent GB-1133495-A (GB)
Title: Improvements in and relating to insulation
Inventor: LAIDLER THOMAS GORDON
IPC: C04B28/10
Filed: 1966-06-29
Abstract: 1,133,495. Moulding fibrous pulp articles. CHEMICAL & INSULATING CO. Ltd. 19 Sept., 1967 [29 June, 1966], No. 29200/66. Heading B5A. [Also in Divisions C3 and D2] An insulating material is made by mixing fibres with magnesium carbonate trihydrate slurry, and then either (a) feeding under pressure into a porous mold and dewatering, or (b) preheating, and feeding into a constant-temperature hot-water-jacketed mould; the piece is then further dried -in a store and may then be trimmed. The material comprises 5-15% wt. wood pulp fibres. It may also include a minor proportion, e.g. up to 3% wt., of viscose rayon, cellulose acetate, and/or cellulose triacetate fibres.
Patent GB-469711-A (GB)
Title: Improvements in or relating to universal couplings
IPC: F16D3/26
Filed: 1936-10-28
Abstract: 469,711. Universal joints. STEVENS, A. H. (United Engineering & Foundry Co.) Oct. 28, 1936, No. 29290. [Class 80 (ii)] A universal joint for a rolling-mill comprises a tongue 5 on one shaft-member 1, pivotally engaging the flat inner walls of a bronze segmental slipper 6, which engages rotatably in a transverse cylindrical boring 3 in the other shaft-member 2, in which boring it is retained by a helical rib 11 carried by either member 2, 6. engaging a complementary groove in the other. The slipper 6 can thus be screwed into position in the bore 3, and the slight transverse movements of the slipper 6, which occur as the joint deflects in operation, are of no consequence when the joint is used for the application referred to. The tongue 5 is located transversely in the slipper 6 by a pin 8a on the latter engaging a slot 9 in the tongue. The slipper may be made all in one piece, or, as shown, it may be split through the pin and held together by a bolt 13. The end-face of the pin 8a is then crowned, and the bolt includes a spring-washer 14, so as to allow a slight relative tilting of the slipperhalves to facilitate assembly and avoid breakage during operation.
Patent GB-1263532-A (GB)
Title: Electron beam heating apparatus and method of control thereof
Inventor: BRUKOVSKY IGOR PAVLOVICH
IPC: G05D23/27
Filed: 1969-06-10
Abstract: 1,263,532. Automatic power control of electron beam heating apparatus. MOSKOVSKY ORDENA LENINA ENERGETICHESKY INSTITUT. June 10, 1969 [June 10, 1968], No.29317/69. Heading G3R. The heat supplied to a workpiece in the work chamber 4 of electron beam heating apparatus having an electron gun 2 and a beam guide system 3, is automatically maintained at a desired value by detecting the respective power loss in the sections 2, 3, 4 using detectors 9, 10, 11 feeding amplifiers 12, 13, 14, passing the outputs of these amplifiers to a control unit 7 in which they are subtracted from a signal from a detector 8 which measures the total power supplied from a source 5 to the gun 2, comparing the resultant signal with a reference level representative of the desired heat value and using the control signal so produced to adjust the power supply 6 for the cathode of the gun 2 to maintain the desired value. The detectors 9, 10, 11 maybe pressure transmitters, temperature sensing elements or electrical probes insulated from earth. The unit 7 may be arranged to respond to only one or two of the signals from detectors 9, 10, 11 depending on the degree of control required. Also the unit 7 can control the source 5 to remove its supply to the gun in the event of a fault.
Patent GB-931807-A (GB)
Title: Improvements in or relating to electro-mechanical transducers using the hall effect
IPC: H04R23/00
Filed: 1959-08-27
Abstract: 931,807. Hall-effect transducers. SIEMENSSCHUCKERTWERKE A.G. Aug. 27, 1959 [April 23, 1959; July 14, 1959], No. 29331/59. Class 40 (4). An electro-mechanical transducer comprises a Hall-effect plate sandwiched between pieces of soft-iron or ferrite the flux through which is varied by a permanent magnet with one pole nearer to the Hall plate than the other and moved perpendicularly to the plate in accordance with mechanical vibrations. As embodied in the pick-up in Fig. 1 the plate 11, which may be a vapour deposited film, lies between ferrite blocks 12, 13, and the magnet 14 is pivoted at 18 on a stylus arm 17 carrying a sapphire stylus 20. The stylus arm is centred by a spring system 21, 22. In the embodiment of Fig. 4 the stylus arm 48 pivots about the axis of a rod-shaped magnet 45 magnetized across a diameter and oriented to give a flux balancing in the arms 43 and 44 of the ferrite sandwich. In a microphone, Fig. 3, not shown, the magnet may be driven by a diaphragm. It is stated that by using two Hall-effect transducers a push-pull or stereophonic output may be generated.
Patent GB-1407201-A (GB)
Title: Printed electric wiring arrangements
IPC: H01C1/02
Filed: 1971-06-23
Abstract: 1407201 Printed circuits; resistors JOSEPH LUCAS (ELECTRICAL) Ltd and ELECTRO LAMENAR PRODUCTS Ltd 2 June 1972 [23 June 1971 30 Sept 1971] 29405/71 and 45517/71 Headings H1R and HIS [Also in Divisions B5 and H5] A printed wiring assembly such as a heating resistor comprises a bent component having two metallic thermally conductive sheets of different thickness and/or hardness forming outermost parts of the arrangement, said sheets having, on adjacent faces respective electrically insulating layers and a foil conductor on one of the insulating layers and sandwiched between the adjacent faces of theinsulating layers. Insulating layers are bonded to heat conducting aluminium substrates 13, 14 and a circuit pattern is formed by etching a metal foil 10 attached to one insulating layer. The insulating layers are then bonded together to encapsulate the foil. Substrate 13 is relieved to accommodate a tab connector 15. Substrate 13 is thinner and/or harder than substrate 14 to permit the assembly to be bent with substrate 13 innermost. The assembly may be bolted to a heat sink by a bolt which is either insulated from the circuit or contacts the circuit through a hole in one substrate.
Patent GB-1495809-A (GB)
Title: Anti-wheel-locking braking system
IPC: B60T8/173
Filed: 1975-07-14
Abstract: 1495809 Antiskid braking systems WABCO WESTINGHOUSE GmbH 14 July 1975 [1 Aug 1974] 29410/75 Heading F2F An antiskid braking system includes sensors producing output signals, representative of rotary behaviour of respective wheels during braking, which are applied to evaluation circuits 1 or 101 for controlling braking pressures and the circuits associated with wheels on the same axle are interconnected so that incipient locking of either wheel results in control of the braking pressure of the other wheel on the same axle, each of the circuits 1 or 101 including a pulse generating device 7 or 107 connected to cause the intermittent closure of a valve 4 or 104 controlling the fluid pressure inlet to the brake of the associated wheel in response to either an output signal from the circuit associated with the other wheel on the same axle, or an input signal to the fluid pressure inlet valve of said other wheel. When a predetermined deceleration of the right hand wheel has been achieved a control signal generated by circuit 1 is applied via an OR-gate 2 and amplifier 3 to the valve 4 to reduce braking pressure and simultaneously the signal is transmitted via an OR-gate 5 to the input of an AND gate 106. At the second negated input of AND gate 106 there is no signal from circuit 101 since the left hand wheel shows no tendency to lock and the signal passes to pulse device 107 whose output passes to OR- gate 102 its output in turn passing to amplifier 103 and valve 104 so that the latter is opened and shut to slow the build of braking pressure. When the left hand wheel tends to lock a control signal is applied to AND gate 106 to block the pulse.
Patent GB-1126506-A (GB)
Title: Electrodynamic microphone
Inventor: ZLEVOR ALFRED
IPC: H04R3/08
Filed: 1966-06-30
Abstract: 1,126,506. Moving coil microphone circuit. AKUSTISCHE U KINO-GERATE G.m.b.H. 30 June, 1966, No. 29547/66. Heading H4J. An electro-dynamic microphone, the frequency response of which falls off relatively sharply at low frequencies, has connected to it a transistorized booster amplifier for compensating for the low frequency response, the medium and high frequencies by-passing the booster amplifier and being fed directly to the input of a microphone pre-amplifier. The medium and high frequency output of the microphone I is taken to a pre-amplifier terminal 11 via a capacitor 3. A second capacitor 2 feeds the microphone voltage to a transistor 4 which receives its base voltage via a resistor 5 and from a battery connected between the terminals 13 and 14. The voltage amplified by the transistor 4 flows through a frequencydependent network, comprising a capacitor 6 and an inductance 7 for boosting the low frequencies, and through a capacitor 10 to the output terminal 11. Terminal 12 is earthed. The microphone 1 may have a unilateral or bilateral response. The booster amplifier may be adjustable to provide further emphasis or diminution of low frequencies. The booster amplifier and microphone may be in a common housing.
Patent GB-321528-A (GB)
Title: Improvements in apparatus for conveying coal dust from a storage receptacle to a receiver
IPC: B65G65/42
Filed: 1928-10-13
Abstract: 321,528. Forbes, A. W. Oct. 13, 1928. Addition to 288,445. Pneumatic conveyers.-In apparatus according to the parent Specification, the fuel is delivered from the bunker 1 into the suction chamber 11 by an endless conveyer 12 which serves to return to the bunker any fuel not removed by the suction in the conduit 2. The upper run of the conveyer 12 is enclosed in a tube 16 and the lower run travels along an open-topped channel member 17.
Patent GB-498867-A (GB)
Title: Improvements in or relating to the generation of signals in television or like systems
IPC: H01J31/32
Filed: 1937-10-29
Abstract: 498,867. Cathode-ray tubes. FARNSWORTH TELEVISION, Inc. Oct. 29, 1937, No. 29590. Convention date, Nov. 2, 1936. [Class 39 (i)] In a television system signals are generated by focusing the light image on a photo-electric, apertured screen 4 and the electrons emitted are accelerated towards a mica or glass storage electrode 6 by a screen electrode 6. The electrode 6 is provided with a rear coating 7 of metal, and due to the formation of the charge image on the front surface of the electrode, a current flows from the coating through a resistance 24. An electron beam from a gun 15 scans the storage electrode 6, which emits secondary electrons ; these pass to the electrode 5, the point scanned being thereby raised to a positive potential which is the same over the whole surface, so that a displacement current flows in the resistance 24 which, as any particular point is scanned, is proportional to the intensity of the charge image at that point. The light image passes through the electrode 6 and coating 7.
Patent GB-666542-A (GB)
Title: Improved railway sleeper of reinforced concrete with rail fastening bolts and methodfor making said sleeper
IPC: E01B3/36
Filed: 1949-11-18
Abstract: 666,542. Reinforced concrete sleepers. SONNEVILLE, R. P. Nov. 18, 1949. [April 1, 1949] No. 29607/49. Class 104 (ii). [Also in Group V]. In a railway sleeper of reinforced concrete having a main reinforcement of metal along its longitudinal axis the reinforcement is formed of a steel girder, such as an I- or inverted T- section girder, with a vertical web 2 provided with vertical recesses 4 shaped to receive and interengage with correspondingly shaped heads of rail-securing bolts which extend upwardly therefrom through holes in the concrete. The example shows one end of a pot sleeper which has reinforced concrete blocks 1a cast upon both ends, the web portions of the girder within each end being provided with two dovetailshaped or segmental recesses 5, Fig. 3, communicating with vertical orifices of rectangular cross-section extending upwardly through the concrete, so that bolts with heads 9 shaped to correspond with the recesses 5 can be inserted downwardly and then rotated axially through 90 degrees to interlock with the girder web when the bolts are tightened. Rail-clamping members 14, which may be shaped as shown, or otherwise, for example as described in Specification 652,305, are held upon the projecting screw-threaded shanks of the bolts 8. The rectangular orifice 11 through the concrete and upper portion 6 of the girder web is disposed at right-angles to the longitudinal axis of the girder and, to prevent the bolt heads 9 from turning through more than 90 degrees, a pair of internal abutment stops are provided within the concrete by a pair of relatively offset passages 12a, 12b, Fig. 4, formed therethrough during the casting of the pots (see Group V). The reinforcing girder may consist of either the head or the bottom flanged portion of a rail cut horizontally through the middle of the web.