baber/WOPTO huggingface dataset:
Patent GB-1308177-A (GB)
Title: Comminuting apparatus
IPC: B02C/
Filed: 1970-07-03
Abstract: 1308177 Comminuting apparatus B VOGEL 3 July 1970 [4 July 1969] 32346/70 Heading B2A Comminuting apparatus, particularly for refuse, comprises a housing 1 Fig. 1 having an inlet, a rotor bearing a knife or knives 6 cooperating with a strip-like blade or blades 8, 9 and an opening 1" which may be in the form of a grid in the lower part of the housing for removal of comminuted material, wherein the or each knife possesses at least one tip defined by the meeting of an adjacent pair of cutting edges, the tip projecting further forward in the direction of rotation of the rotor, than the adjacent regions of the knife, the cutting edge of the knife or each knife at least in one region adjacent to the tip lying on a cylindrical surface whose axis is collinear with the axis of rotation of the rotor. The knives perform a progressive cut of the material, may be toothed or notched, be radially adjustable and hollow ground and may be, e.g. of the forms in Figs. 3a ..d. Half shells 7 are mounted around the rotor axle 4. the diameter of these half shells determines the size limit for comminution. In a second embodiment two rotors 41, 42 cooperate with a central fixed knife 50 (which may be reversed when worn). In a further embodiment (not shown) the axle is split and bears flanges at the inner ends between which knives are secured.
Patent GB-172321-A (GB)
Title: Improved calling apparatus for high frequency telegraphy
IPC: H04J1/14
Filed: 1921-12-02
Abstract: 172,321. Ges. f³r Drahtlose Telegraphie. Dec. 4, 1920, [Convention date]. Selective distant control systems.-A selecting- device operated by wireless signals, and suitable for calling subscribers to a news-distributing system, comprises a number of resonance relays arranged in series so that when one is actuated by a group of impulses of a given frequency it switches in the next, ready for closure by the succeeding series of impulses of a different frequency, and so on until finally the calling-alarm is actuated. The contacts of an initial relay 20 are actuated in synchronism with the signal impulses. The first impulse energizes a magnet 18 to close the circuit of a slow-release relay 17, and thereby through contacts 29, 30 to energize a series of holding-magnets 13 .. 16. The contacts 9 .. 12 are then ready to be closed by the pendulums 5 .. 8. The magnet 1 is already energized, and the first series of impulses will swing the pendulum 5 until it rests in the position shown, closing the contact 9. This contact completes the circuit of the next magnet' 2, so that the pendulum 6 will be swung into position by the ensuing series of impulses to energize the magnet 3 and so on, until finally the magnet 23 withdraws a latch to sound the calling-bell 21 and so notify the subscriber. At the end of the message the armature 29 falls away, and springs return the contacts 9 .. 12 to their normal positions ready for the next call.
Patent GB-1171799-A (GB)
Title: Improvements in or relating to Packing Machines.
Inventor: DAVIES ROBERT WILLIAM
IPC: B65B19/22
Filed: 1965-11-01
Abstract: 1,171,799. Packaging cigarettes &c. MOLINS MACHINE CO. Ltd. 31 Oct., 1966 [1 Nov., 1965], No. 32733/69. Divided out of 1,171,762. Heading B8C. The Specification describes and claims the cigarette compressing arrangement set out in the parent Specification.
Patent GB-862311-A (GB)
Title: Microwave transmission device
Inventor: GANDER ARTHUR JAMES
IPC: H01P1/22
Filed: 1958-10-14
Abstract: 862,311. Microwave attenuators. MULLARD Ltd. Oct. 14, 1958, No. 32737/58. Class 40(8). An attenuating element for an interdigitated transmission line comprises a sheet of lowloss material, e.g. mica, bearing upon one or both faces a thin film of metal. The metal may be applied in the form of a suspension or colloidal solution, e.g. one of the solutions known as "liquid bright platinum" or "liquid bright gold". After application of the solution the mica sheet is fired to leave a thin film of metal leaving a resistance of about 100 ohms per square. As shown, the resistive layer 3 of mica sheet 2 rests in contact with an interdigitated line 7 arranged to extend between the broad faces of a waveguide 5. The layer may alternatively be on the side of the sheet remote from the line 7 or layers may be formed on both sides. A further sheet may be arranged on the opposite side of the line.
Patent GB-194375-A (GB)
Title: Improvements in or relating to apparatus for determining combinations and permutations which are possible in codes, and the solution of mutilated groups in messages in existing codes
IPC: G09C1/12
Filed: 1921-12-07
Abstract: 194,375. Shadbolt, H. J. Dec. 7, 1921. Ciphers. - Ciphering-apparatus comprises a number of independently movable slides, discs, or sleeves each provided with a series of letters, numerals, &c., used in conjunction with one or more similar members having the letters &c. arranged in reverse order. A construction is described in which the apparatus can be used ior the solution of mutilated groups, and comprises five discs haviig straight alphabets, and a sixth disc with the alphabet in reversed order. Reference has been directed by the Comptroller to Specifications 11838/91, 16069/92, and 7153/96.
Patent GB-1001064-A (GB)
Title: Improvements relating to electrophotographic materials
IPC: G03G5/06
Filed: 1961-09-13
Abstract: 1,001,064. Electrophotographic materials. GEVAERT - PHOTO - PRODUCTEN N.V. Sept. 13, 1961 [Sept. 13, 1960], No. 32892/61. Heading H1K. An electrophotographic material contains in its photo-conductive layer at least one compound of the general formula: wherein one of R 1  and R 2  represents a substituted or unsubstituted aryl group, and the other also represents such a group or a hydrogen atom, or a substituted or unsubstituted alkyl group, alkaryl group, aralkyl group, or heterocyclicradical; and each of R 3  and R 4 , which may be the same or different, represents a hydrogen atom or a substituted or unsubstituted alkyl group, aryl group, alkaryl group, aralkyl group or heterocyclic radical, or R 3  and R 4  together represent the necessary atoms for closing a substituted or unsubstituted polycyclic aromatic ring system. These compounds may constitute the bulk of the photo-conductors present (it is recommended that they should constitute over 80% of the photo-conductors) with additions of other unspecified photoconductors, or they may be present only in small amounts (0À1-50%) when acting as sensitizers for photo-conductors whose content is practically all polymeric material. The photo-conductive layer contains besides which are preferably mono-molecular compounds with a resistivity greater than 10<SP>9</SP>ohm./cms. Many examples are given. They are the binders used in Specification 964,876, the polyesters of Specification 883,312, and the polysulphonates of Specification 916,660. Other (unspecified) binders may be used which are compounds of low molecular weight, mixtures of compounds of high and low molecular weights, or mixtures of semi-polymerizates which are polymerized or condensed in situ or are cross-linked by known methods. Sensitizing compounds may be added which may or may not be themselves photoconductive. One or more compounds may be chosen from Rhodamine B, the imidazoles of Specification 964,873 (for example 2 - (p - dimethylaminophenyl - 4: 5 - diphenyl - imidazole), iodoform, 1-chloro-anthraquinone, and from classes A-R of Specification 964,875. The photoconductive layer may contain plasticizers such as specified, dialkyl phthalates or triaryl phosphates in the proportion of 10-30% by weight of binder, and also unspecified additives influencing the chemical, physical, and electrical properties of the layer. The Specification includes considerable detail of conductive backings and composite supports. These may be metal foils (such as those of aluminium, zinc, copper, iron, tin and lead), glass plates with conductive surface films (of silver, gold, or stannous oxide), foils of conductive plastics or paper. Sheets of non-conducting plastics are provided with metal layers, layers containing metal powders, or with hydrophilic conducting layers. Subbing layers may be provided between hydrophobic polymer sheets and their hydrophilic layers. Various component parts of the supports are identified by reference to several British and Belgian Specifications.
Patent GB-1304535-A (GB)
IPC: F25B49/02
Filed: 1970-07-07
Abstract: 1304535 Protective arrangements for refrigeration compressor motors PENN CONTROLS Inc 7 July 1970 [29 Oct 1969] 32935/70 Heading H2J [Also in Divisions F4 and H1] In a compression refrigeration system comprising a compressor MDC driven by a motor M, a condenser C, expansion valve EV and an evaporator E 1  a thermostatic switch T and high and low pressure limit switches HPL, LPL in an electrical supply line L3 form the normal operating controls of the motor M, which controls are subject to a safety control including a differential oil pressure switch DPC and/or the low pressure switch which measures the net pressure delivered to the compressor motor from an oil pressure pump (not shown), the arrangement permitting continued operation of the motor only on the attainment of sufficient oil pressure. On failure to achieve this pressure a cycling mechanism comprising an electro-thermal delay switch including a heater TD and contacts DPC in combination with a stepper relay having contacts SR cycles the control for a total of three starting attempts with a waiting period between each attempt, after which the stepper relay locks the system to prevent operation until manually reset by a switch RS. The relay cycle automatically resets itself to its initial zero position on permanent start-up of the motor at whatever step in the cycle, the arrangement being such that during each starting attempt the motor contacts ML1, ML2 are closed and then opened if the oil pressure does not reach the desired value within a period determined by the electro-thermal delay switch.
Patent GB-539659-A (GB)
Title: Improvements in or relating to mixing valves
IPC: F16K11/20
Filed: 1939-12-28
Abstract: 539,659. Mixing valves. HYRESGA.STERNAS SPARKASSE-OCH BYGGNADSFORENINGARS RIKSFORBUND, U.P.A. Dec. 28, 1939, No. 33008. Convention date, April 15, 1939. [Class 135] A mixing valve particularly for hot and cold water is provided with two co-axially disposed spindles co-operating with valve members and adapted to be turned both separately and in common, each spindle being connected with a wheel or knob, which are arranged sufficiently close to each other as to permit both to be gripped at the same time by one hand. In the form shown in Fig. 1 an outer annular lift valve is carried by a socket having an externally screwed extension 24 engaging a screwed recess in a spindle 22 rotatably mounted in a cover 11. The spindle 22 is held in place by a yoke 30 which also co-operates with slots in the socket to hold the valve against rotation. An inner valve 19 is held against rotation by a squared bail engaging a hole in the valve seat and has an internally threaded socket engaging a screwed spindle 23 provided with a collar 39 bearing against the yoke 30. A handle 25 is secured to the spindle 23 by screws 26, 28 and a ferrule 27 bearing against the end of the spindle 22. This spindle has a squared part on which a second handle 31 is slidably mounted adjacent the handle 25. The handle 31 has a recess 34 adapted when the handle is moved against the action of a spring 32 to engage frictionally with a rib 33 on the handle 25 so that the two handles may turn as a unit. In a modification the inner ends of the two spindles carry toothed pinions co-operating with toothed quadrants mounted on the plugs of two plugcocks arranged side by side in the valve casing.
Patent GB-1099514-A (GB)
Title: Improvements in smoothing irons
IPC: D06F75/22
Filed: 1965-08-03
Abstract: 1,099,514. Spray-producers. PHILIPS GLOEILAMPENFABRIEKEN N.V. Aug. 3, 1965 [Aug. 6, 1964], No. 33155/65. Heading B2F. [Also in Divisions D1 and F1] A spray device for a smoothing iron comprises a whirling body 19 for producing a spray jet and a return valve 22 incorporated in a cartridge 17 removably mounted in a housing formed by a spray nozzle 16 and a nipple 14 mounted in the front wall of the iron. A duct 3 connects the main reservoir of the iron through a ball valve 4 to a bellows-shaped spraying container 6 mounted in the iron handle 1 and biassed, to its expanded position by spring 11. Container 6 is squeezed by a a push button 12 to expel water through valve 22 and when released draws, water in through valve 4. The water passes through valve 22 into cartridge 17 and through grooves 24,25 in body 19 to pass out of opening 18 as a spray. Sleeve 17 may be of metal and nozzle 16 and body 19 may be of polytetrafluorethylene, fluoride rubbers, refractory synthetic rubbers, polypropylene and derivatives, polystyrene and derivatives and silicon resins. Epoxy resins and buton resins may be used for lining the surfaces of nozzle 16 and body 19.
Patent GB-793933-A (GB)
Title: Improvements relating to pins, nails, studs, or other anchoring pins
IPC: F16B19/14
Filed: 1954-04-28
Abstract: 793,933. Nails &c. ANSTALT FUR MONTAGE-TECHNIK: April 28, 1954 [April 15, 1954], No. 33166/57. Divided out of 793,932 [Group VII]. Class 89(2) An anchoring pin adapted to be driven into hard material by blows as from a hammer, particularly for use with a tool as described in Specification 793,932, comprises a shank having a penetrating point 2 at one end in which the portion 1 of the shank adjacent to the point 2 is given a slight conicity or taper converging in the direction towards the penetrating point. The angle between the generator of-the tapered portion 1 of the shank and the longitudinal axis of the pin is at least five minutes of arc and at the most 5 degrees, but preferably is about 40 minutes of arc.. The rear end 3 of the pin may be screw threaded and/or provided with a conical, part spherical or other surface for co-operation with a complementary surface on the punch or dolly of the tool.
Patent GB-1029507-A (GB)
Title: Dynamoelectric machine rotor
IPC: H02K1/32
Filed: 1964-08-14
Abstract: 1,029,507. Dynamo-electric machine rotors. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 14, 1964 [Aug. 30, 1963], No. 33207/64. Heading H2A. A dynamo-electric machine rotor 10 comprises a cylindrical core 12 having one or more axial cooling air passages and being divided axially into at least two core annuli 26 defining between them radial vent ducts 28 communicating with the axial passages and in each of which are disposed a plurality of elongated blades rotatable with the rotor and each extending axially between circumferentially adjacent ones of a plurality of conductors 22 disposed in core slots, the blades and slots each being inclined by substantially the same angle and in the same direction with respect to radial lines through the rotor axis. This inclination reduces the windage loss incurred in impelling the ambient air towards the stator, and whilst shown as the squirrel cage rota of an-induction motor the construction is also applicable to wound rotors. The blades may be of two lengths, have offset portions, and be staked to a vent plate. The axial passages may be either spaces between spider arms 18, or holes in the core if the latter is supported directly by the shaft 14.
Patent GB-1010753-A (GB)
Title: Corrosion restraining compositions
Inventor: CHADWICK ERIC MILTON
IPC: C23G1/06
Filed: 1963-08-22
Abstract: A corrosion inhibitor for ferrous metal acid pickling baths comprises a mixture of, by weight, 1 part of di-n-butylthiourea and 2-5 parts of an amine/alkylene oxide condensate with 1-4 times the weight of the mixture of a propylene glycol solvent. The condensates are derived from 3-20 mols. of ethylene or propylene oxide and 1 mol. of an aliphatic primary amine having a radical containing 8-18 carbon atoms, e.g. octyl, dectyl, octadectyl, octadecatrienyl which can be derived from naturally occurring fatty glycerides, e.g. coconut and soyabean oil and tallow.  The condensate may be represented by the formula <FORM:1010753/C6-C7/1> where R represents a saturated or unsaturated hydrocarbon radical of 8-18 carbon atoms, n represents integers 2 and 3 and p and q independently represent zero or a positive integer.  The solvent comprises one or more of mono-, di-, or tri-propylene glycol. Acid baths referred to are sulphuric, hydrochloric, phosphoric and sulphamic.
Patent GB-828811-A (GB)
Title: An improved current regulator
Inventor: UPTON ROGER WILLIAM
IPC: G05F1/42
Filed: 1956-11-01
Abstract: 828,811. Automatic current-control systems. LANCASHIRE DYNAMO ELECTRONIC PRODUCTS Ltd. Nov. 1, 1957 [Nov. 1, 1956], No. 33375/56. Class 38 (4). In an alternating current control system variations of the current to be regulated cause variations in the heating of a thermionic valve controlling a further valve, the variation in impedance of which increases the boosting action of a transformer in response to decrease in the current and vice versa. A filament lamp 1, e.g. for a densitometer or a photoelectric alarm is supplied with current from a mains transformer secondary winding 2 which also passes through the cathode heating filament of a diode 3. The anode voltage supply to diode 3, which is stabilized by a neon 7, is derived from a further secondary winding 4 of the mains transformer through a rectifier 5. Variations of the current through lamp 1 thus cause variations in the emission of diode 3, and consequential variations in the anode potential of the diode control the conductivity of a pentode 12 connected in series with the primary 13 of a booster transformer across mains transformer secondary winding 4. Secondary winding 40 of the booster transformer is connected in series with the supply to lamp 1 to maintain lamp current substantially constant. Rectifier 15 and condenser 14 improve the waveform of the supply to the booster transformer.
Patent GB-893996-A (GB)
Title: Improvements in or relating to methods of securing inserts in sheet material
Inventor: PRESTIGE HARRY THOMAS
IPC: H05K13/04
Filed: 1959-10-02
Abstract: 893,996. Riveting; punching; assembling force fits. BELLING & LEE Ltd. Sept. 30, 1960 [Oct. 2, 1959], No. 33434/59. Class 83 (4). A method of securing a rigid insert 1 in a rigid sheet of material 7, 8 includes using the insert as a punch in combination with a die to shear a piece from the sheet and then forcing a part 3 of the insert following the cutting edge into the sheet, this following part being shorter than the thickness of the sheet and separated from the leading face by a boss 5 of smaller cross-section than the largest crosssection of the following part having a peripheral groove 6 into which the sheet material 10 re-asserts, and the following part also having an external shape capable of keying to the walls of the aperture formed in the sheet material. The insert also has a peripheral groove 2 under the head and sheet material displaced by the passage of the insert re-asserts itself to fill this groove. Specification 869,037 is referred to.
Patent GB-325269-A (GB)
Title: Improvements in or relating to power systems
IPC: F01K7/02
Filed: 1928-11-15
Abstract: 325,269. Johnson, E. M., Pierson, H. C., and Associated Electrical Industries, Ltd. Nov. 15, 1928. Electric governors; transmitting-mechanism.- In motor power plant of the kind in which a primary engine, and a secondary engine using the exhaust of the primary engine both operate the same drive, the secondary engine is coupled to the main drive by variable transmission means the ratio of which is varied automatically in order to keep constant the speed of the secondary engine. At a limiting point the governor may admit fresh steam to the secondary engine. Figs. 1, 2, and 3 show the application to a ships propulsion plant comprising a reciprocating engine 1 driving a propeller 3 direct and an exhaust steam turbine 4 driving the same propeller through an electrical transmission comprising a generator 10 and a motor 11. The turbine 4 also drives a generator 12 for the auxiliary services of the ship. A stage 8 of the turbine may be supplied with steam by a pipe 9 controlled by a valve 17, and a valve 7 is arranged to bye-pass the exhaust of the engine 1 to the condenser 5. Rheostats 14, 15 and a reversing switch 13 are arranged in the field circuit of the generator 10. One or two governors 16, 18 are provided to regulate (a) the resistance 15 inserted in the field circuit of the generator, (b) the opening of the valve 17 controlling the auxiliary fluid supply. and (c) the closing of the valve 7 which byepasses exhaust steam to the condenser. Fig. 2 shows a mechanical device for transmitting the governor movement. The governor actuates a relay motor 23 having a rod 24 with pins 25, 26, engaging arms 20, 27. On the speed falling the arm 20 begins to increase the resistance 15 and so reduces the load on the generator 10. When the limit of this reduction is reached, a stop 32 on the arm 27 engages an arm 33 and through a connection 34, 28, 22, begins to open the auxiliary fluid supply valve 17. The intermediate gear may be modified. Fig. 3 shows an electric governing apparatus which may be used instead of a centrifugal governor for actuating the mechanical transmission apparatus shown in Fig. 2. The auxiliary generator 12, the voltage of which is to be maintained constant, is connected to a voltage relay 44 comprising coil 45, plunger 46, restraining spring 47 and two pairs of contacts 50, 51. The circuits of these contacts control a reversing contact maker 48 by which the direction of rotation of a servo-motor 49 is determined. The servo-motor actuates transmission gear such as that shown in Fig. 2. The plunger 46 may actuate an oil servo-motor instead of the electric servo-motor 49. The second governor 18 shown in Fig. 1 mav act as an emergency governor. The main engine 1 may be uncoupled from the propeller shaft. Variable hydraulic transmission may be used between the engine shafts instead of electric transmission.
Patent GB-326761-A (GB)
Title: Improvements in or relating to cotton combing machines
IPC: D01G19/14
Filed: 1928-11-16
Abstract: 326,761. Hetherington & Sons, Ltd., J., and Tomlinson, A. Nov. 16, 1928. Combing-machines; sliver conductors. - In a cotton combing-machine the selvedge guide adjacent to the detaching-rollers 5, 6 comprises separate members 3, 4, independently adjustable on pins 12 slidably secured in brackets 10 secured to the back-tin 9. The members present concave faces to the edges of the sliver x and are bent forward to allow the roller 5 to roll over the lower roller 6.
Patent GB-1522806-A (GB)
Title: Shaping apparatus for shaping heat-softenable articles
IPC: A61C9/00
Filed: 1976-11-08
Abstract: 1522806 Device for shaping dental bite blocks P C BARTON 8 Nov 1976 [12 Aug 1975] 33583/75 Heading B5A A device for shaping a heat softenable article such as a bite block used in dentistry comprises a plurality of blades 13 each having a cutting edge 13a. The blades are slotted into a casing 10 having a lid 11 and their lower ends are received by an electrical heated conductive support 16 controlled by a switch 17. The front wall of the casing is formed as an additional thicker blade 19 having a cutting edge 19a and in contact with the end of the support 16. The casing is provided with a pull-out drawer 21 into which material trimmed from the article falls during use.