baber/WOPTO huggingface dataset:
Patent GB-494559-A (GB)
Title: Improvements in and relating to the manufacture of copper-plated silver mirrors
IPC: C03C17/10
Filed: 1937-06-29
Abstract: The process described in the parent Specification is modified by the substitution of a cuproglyceric complex for the cuprotartaric complex.  For example, a glass plate may be washed with stannous chloride, silvered by means of a solution of ammoniacal silver nitrate and invert sugar, washed, and treated with a solution formed by dissolving in distilled water copper sulphate, glycerine, and sodium hydroxide to which is added immediately before use a solution of formaldehyde.  To prevent reaction between the formaldehyde and the sodium hydroxide a colloid such as gum arabic or agar-agar is added to the solution.
Patent GB-911439-A (GB)
Title: Rotary scythe mower
Inventor: BANKS ZBIGNIEW MARIAN
IPC: A01D34/63
Filed: 1959-03-31
Abstract: 911,439. Rotary-scythe mowers. BURNDEPT Ltd. June 1. 1960 [March 31, 1959], No. 10896/59. Class 6(3). In a rotary-scythe mower of the type having blades 7 on arms 6 extending radially from a vertical shaft 5, curved guards 8 are provided on the ends of the arms to sweep away stones from the path of the blades. The guards taper towards their hooked free ends. The mower has four wheels 2 and a small engine 4 driving the shaft 5.
Patent GB-1146683-A (GB)
Title: A resilient valve element
Inventor: HESSE HOLGER
IPC: A61M16/20
Filed: 1965-03-15
Abstract: 1,146,683. Valves. R. L. HESSE. 11 March, 1966 [15 March, 1965; 21 April, 1965], Nos. 10911/65 and 16833/65. Heading F2V. [Also in Division AS] A resilient valve element for use in a breathing valve 1 having mutually opposed inlet and outlet conduits 3, 5 terminating in mutually opposed spaced seats, comprises (see Figs. 1 and 2) a resiliently expandable hood 10 the open end of which is adapted to be sealingly attached around a seat 3a of an inlet and which has a top portion adapted, upon expansion of the hood, to come into sealing contact with a seat 5a of a mutually opposed outlet, at least one port 12 being provided in the wall of the hood outwardly of said top portion, the or each port being adapted to be open in the expanded state of the hood and to be closed in the relaxed state of the hood. In a modification (see Figs. 3, 4a and 4b) the valve element 50 is made of two members, a flat membrane 51 and a funnelshaped membrane 52 attached along restricted portions 53, 54 of their circumferences-the non-attached parts of the circumferences forming labial ports.
Patent GB-1170163-A (GB)
Title: Machine Tool.
IPC: B23B47/04
Filed: 1967-03-08
Abstract: 1,170,163. Boring machines. HEALD MACHINE CO. 8 March, 1967 [14 March, 1966], No. 10929/67. Heading B3C. [Also in Division F2] A boring machine has three spindles 13, 16, 19 rotatably mounted in a head 11, and driven by pulleys 31. Each spindle is mounted at one end in a sleeve 15 by ball bearings 42, 43, and at the other end by a hydrodynamic bearing. Each of the latter bearings comprises two sets of staggered lands 53 on an enlarged portion 52 of the spindles, supplied with fluid from a reservoir 23, through a flexible pipe 35, an axial bore 32, and radial bores 54. A boring bar 29 is connected to each spindle and carries a single point tool 17, the end of bore 32 being plugged at 33. Sleeve 15 is connected to the head 47 of the spindle by an annular tongue and groove 48, 49.
Patent GB-709114-A (GB)
Title: An improved thermal over-current electric circuit-breaker
IPC: H01H73/30
Filed: 1951-05-10
Abstract: 709,114. Automatic circuit-breakers; switchboards. ELLENBERGER & POENSGEN GES. May 10, 1951 [May 10. 1950; July 10, 1950], No. 11000/51. Class 38(5) [Also in Group XXXVI] A circuit-breaker comprises a spring-controlled contact bridge held in the " on " position by a bimetal strip which is heated by the controlled current and carries a contact at its free end cooperating with the contact bridge, the circuit also being completed at a second point. In one form, Fig. 1, an insulating slidable block 11 carries contacts 19, 20 engageable with a fixed contact clip 9 and a contact 10 on the bimetal strip 8, respectively. The strip 8 normally latches the block 11 in the closed position but, when it deflects due to the current through it, releases the block 11 which is guided by a pin 12 and a projection 15 engaging a slot in a rail 16. The circuit is reclosed by depressing a button 13 and the breaker may be tripped manually by pressing a button 21 having an enlarged end 24 engaging a sloping part 25 of the strip 8. In a modification, Fig. 10 (not shown), the clip 9 is replaced by a bimetal member which increases the contact pressure on current increase, and the strip 8 has a heating coil. In a further modification, Fig. 11 (not shown), clip 9 is replaced by a contact strip bent over at right angles. In a further form, Fig. 12, a conducting plunger 30 carries a contact disc 29 co-operating with the contact 10 on strip 8 and is guided in a casing 39 having a bayonet-fixing 34. In a modification of this arrangement, an insulating sleeve is placed around rod 30 below the contact disc so as to prevent premature contact between 10 and 30 on cooling of strip 8, the circuit being reclosed only on depression of rod 30. Switchboards. A number of circuit-breakers may be arranged side-by-side on a base-board having pressed-in sleeves co-operating with pins on the breakers.
Patent GB-708393-A (GB)
Title: Pulp molding dies
IPC: D21J7/00
Filed: 1952-05-02
Abstract: 708,393. Pulp moulding dies. MAPES CONSOLIDATED MANUFACTURING CO. May 2, 1952 [Jan. 17, 1952], No. 11126/52. Class 87 (2) A die for forming moulded pulp articles comprises a rigid body forming part of a moulding surface and provided with water drainage passages, a wire screening in contact with and overlying the moulding surface area of the die body, one or more outstanding rigid die members rigidly secured to the die body and constituting the remainder of the moulding surface, wire screening in contact with and overlying the moulding surface area of the outstanding die members and a sealing member between each die member and the wire screen overlying the die body. The die body 10 is flat, thinner round its margin 11, and with recesses 14, 16 in its upper surface, holes passing through the body in the centres of the recesses 16. Laterally spaced slots 13 in the body 10 provide for water drainage. The outstanding rigid die members 22 have bosses 24 that fit in the recesses 14, Fig. 9, and through the holes therein members 26 pass and are threaded into the members 22 to retain them, each having a drainage passage 28 opening into the screwdriver slot. The members 22 are frustroconical in shape with cup-shaped depressions 23 forming ridges in which there are series of recesses 31, Fig. 10, water drainage passages 30 being provided. The wire screening 17 in contact with the flat body 10 is held down at the margin by a frame 18, and may comprise a sheet of fine mesh overlying a sheet of coarse mesh. The members 22 have preformed wire mesh coverings 32 fitting their outside contour, the margins of the coverings being bent under the edges of the members to hold them down. The sealing member between each die member 22 and the wire screen 17 is a ring 35 with a flange which prevents the edge of the covering 32 -from spreading out when the member 22 is clamped down. The top flange edge of the ring 35 leaves a recess in the moulded pulp article which forms a relief space 43 to allow articles of slightly varying sizes to be stacked without jamming, Fig. 15. The recesses 31 in the ridges of the members 22 are to form strengthening cross-ribs in the moulded articles, and they must be suitably proportioned, as explained in the Specification, if the pulp is to thicken for that purpose instead of following the contour of the screen with uniform thickness. The die structure illustrated is designed to produce an egg flat, as partly shown in Fig. 8, in which the egg seats project from a slightly raised surface with shallow recesses between them.
Patent GB-964099-A (GB)
Title: A method of making annular bodies of fibre-reinforced synthetic material
IPC: B60B33/00
Filed: 1961-03-27
Abstract: 964,099. Fabrics. EISENWERK ROTHE ERDE G.m.b.H. March 27, 1961 [May 9, 1960], No. 11129/61. Heading D1K. A method of making annular bodies comprises winding glass fibre strands impregnated with a hardenable synthetic material, preferably thermosetting, in an annular form, characterized in that short pieces of glass fibre are introduced during the winding, into the former, at an angle to the wound strands. As shown in Fig. 1 the winding former consists of a central cylinder 1 having end flanges and comprising an annular groove of rectangular cross-section open around its periphery. Glass fibre strands 3, consisting of rovings containing a substantial number of separate threads, are impregnated with viscous synthetic material by passage through a bath (not shown) and are wound into the groove by rotation of the former. During winding, small pieces of glass fibres 5 are blown through an elongated nozzle 4 into the former, the fibres lying at right angles to the strands 3, whereby a body of cross-section as shown in Fig. 3 is obtained wherein longitudinal glass fibres 3a derived from strands 3 cross transverse fibres 5a produced from pieces of glass fibre 5. The fibres may be acute to the strands, see Fig. 4 (not shown), and two nozzles oppositely inclined may be used. The former 1 may be polygonal or elliptical instead of circular in transverse section, and the groove need not be rectangular, see Figs. 5 to 7 (not shown), in this case, the nozzle may be rotatable about a vertical axis, so that the fibres can be accommodated in varying widths of the groove. Glass fabric strip 19a... 19d may be included in the body by winding between the strands, the former being stepped as shown. Divided formers may be employed, so that first the body is built up over the full width of the groove, and then only over a portion of it.
Patent GB-490561-A (GB)
Title: Improvements in and relating to a process for hardening gold and silver alloys
IPC: C22F1/14
Filed: 1937-04-20
Abstract: In a process for hardening alloys of gold and silver with non-ferrous metals, the alloy is first chilled to about the freezing point of water, is then heated out of contact with the atmosphere in a liquid bath, of tallow, mineral oil or petroleum jelly, to a tempertaure of about 380 DEG  F., being maintained therein for a sufficient time so that is heated right through, then immersed in a hot cleansing solution such as a soap solution, dried and cooled.  The process may be repeated until the desired hardness is obtained, the chilling temperature then being 10 DEG  F. below zero and the temperature of the heating baths 400 DEG  F.  The treatment of an alloy containing 60 per cent of silver, 20 of copper and 20 of gold is referred to. Specifications 486,121 is referred to.
Patent GB-1506202-A (GB)
Title: Heat pipes
IPC: F28D15/04
Filed: 1976-03-16
Abstract: 1506202 Heat pipes DEFENCE SECRETARY OF STATE FOR 16 March 1976 [18 March 1975] 11288/75 Heading F4U [Also in Division H1] A heat pipe for use with a microcircuit package includes a cushion 8 having a cover 10, 11 filled with springy fibrous material, e.g. steel wool or copper beryllium turnings 12, the cover being pressed by the filling against the wall of the heat pipe and acting, at least in part, as the heat pipe wick. The cover is formed, at least in part, of fine gauge mesh or gauze, e.g. two layers of stainless steel mesh. As shown, the cushion is situated on top of a glass fibre layer 7 which lies on a screen printed passive electrical circuit 2 and the heat pipe is partially filled with a fluorocarbon liquid. The circuit 2 is on one side of an alumina substrate 1 and on top of the circuit is a screen printed insulating layer 4 and a solder-bondable metallized layer 5 bonded to a metal cover 6. Active electrical components, e.g. transistors, may be bonded to the circuit 2 within the area enclosed by the layers 4, 5.
Patent GB-540698-A (GB)
Title: Improved means of threading sewing or similar needles
IPC: D05B87/00
Filed: 1940-07-05
Abstract: 540,698. Needle-threaders. DEAN, W. H. July 5, 1940, Nos. 11295/40 and 2037/41. [Class 112] In a machine for threading a sequence of sewing-needles automatically, the thread is carried through the needle eye by means of a current of air. Needles are placed in small tubes h<SP>1</SP> on a rotary carrier h which is rotated step by step. When a needle arrives over a stationary tube h', it falls into a bore formed by registering grooves in a head e<SP>4</SP> and a coverplate f<SP>1</SP>. In its fall, it is caused to rotate by a rotating flexible wiper g and it is brought to rest with its eye correctly positioned in front of a tube e by the engagement of a small knife edge with the end of the flat on the needle in which the eye is formed. The thread spool d is mounted within a closed chamber a<SP>1</SP> and the thread end lies in a tube e which provides the only outlet from the chamber. Compressed air is admitted by a valve a<SP>4</SP> and acting on the resilient washer e<SP>2</SP> projects the tube e into contact with the needle eye, a sufficient length of thread being paid out by the spool d. The air current then carries the thread through the needle eye. A cam removes the cover-plate f', the threaded needle falls on to a chute j<SP>1</SP> and a further length of thread is paid out by the spool. The thread is then severed by a hot wire j and the loose thread is drawn back by a reverse movement of the spool. In a second machine several alternative spools carry different threads and any one can be brought into operative position. The needles are placed in a straight holder which is moved step-by-step across the line of the threading tube. In this machine, after the initial threading is done, the threading tube is moved rearwardly and a loop of thread between it and the needle is blown out sidewise as the thread is paid out by the spool.
Patent GB-1569471-A (GB)
Title: Electrically driven travelling toy
IPC: A63H29/00
Filed: 1977-03-17
Abstract: An electrically driven toy in which a transmission mechanism is disengaged through a manually operated change-over means from the driving power source when the energization of the power source is interrupted.
Patent GB-307651-A (GB)
Title: Improvements in or relating to electrical conductors
IPC: H01B9/02
Filed: 1928-04-18
Abstract: 307,651. McCallum, J. April 18, 1928. Armouring cables.-An electric cable, of the type in which the insulated conductors are enclosed in a lead sheath or in steel armouring, is fitted with a metal bonding wire pressed into external contact with the lead sheath or the armouring by a sheath of rubber covering the cable.
Patent GB-117948-A (GB)
Title: A New or Improved Inclinometer for Aeroplanes and other Aircraft.
Inventor: BARRETT ALBERT WILLIAM
IPC: G01C9/20
Filed: 1917-08-09
Abstract: 117,948. Barrett, A. W. Aug. 9, 1917. Clinometers. - A clinometer for aircraft &c. comprises a transparent graduated sphere a half filled with a non - freezing liquid, such as glycerine, and enclosed in a casing f furnished with a lamp i and a window g. The liquid may be coloured. To retard oscillations of the liquid, the sphere contains a number of hollow balls or floats, or fixed inwardly-projecting vanes.
Patent GB-612440-A (GB)
Title: Improvements in or relating to hydrocarbon wax compositions
IPC: C09K23/00
Filed: 1946-04-15
Abstract: A hydrocarbon wax composition, which is particularly useful as a textile sizing composition, consists essentially of a hydrocarbon wax, preferably a paraffin scale wax of 124/126 A.M.P., a water-dispersible to soluble polyoxyethylene ether ester of a straight-chain monobasic aliphatic acid having at least 12 carbon atoms and not more than one unsaturated carbon-to-carbon bond, preferably stearic acid.  Preferred proportions are 20 to 75 per cent wax, at least 6 per cent and at least 10 per cent acid.  The ester may be a polyethylene glycol monoester having a number of oxyethylene groups equal at least to five-thirds C-12 where C is the number of carbon atoms in the aliphatic acid from which the ester is formed, such as the product of the reaction of ethylene oxide and stearic acid in the proportion of 20 mols of ethylene oxide per mol of stearic acid, or may be a polyoxyethylene ether ester of a polyhydric compound with at least 3 hydroxyl groups and from 3 to 6 carbon atoms, and a straight chain monobasic aliphatic acid having at least 12 carbon atoms and not more than one unsaturated carbon-to-carbon bond, such as a distearate of a glucose polyoxyethylene ether with 6 oxyethylene groups, a polyoxyethylene ether of a partial ester of a hexitan and the aliphatic acid or a partial ester of the acid and a polyoxythylene ether of a polyhydric compound with at least 3 hydroxyl groups and from 3 to 6 carbon atoms.  For use as a textile sizing composition the wax composition is used in an organic solvent or in an aqueous emulsion.
Patent GB-114952-A (GB)
IPC: A61F2/60
Abstract: 114,952. Bone, A. Aug. 8, 1917. Limbs, artificial.-To the front of the thigh portion of a leg is secured an elastic member, attached to the leg-supporting braces upon the wearer's body which is tensioned upon rearward movement of the limb and thus assists the return movement. An elastic member similarly positioned at the back is intended to prevent friction by the braces upon the shoulder. The front elastic member a, Fig. 4, is secured by leather c to the thigh portion b and is attached by an inelastic section d to the braces i, j connected to a belt k. Fig. 5 shows the attachment of the rear elastic member g to the thigh portion and, by means of an inelastic member l, to the braces. Springs may be employed for or in aid of the elastic members.
Patent GB-1088304-A (GB)
Title: Method of producing a pure, highly viscous hyaluronic acid preparation
IPC: B01J47/014
Filed: 1966-03-16
Abstract: Pure, highly viscous, sterilizable hyaluronic acid free from proteins, antigens and pyrogens is prepared by producing by precipitation, a dry powder from animal organs containing hyaluronic acid, denaturing the protein fraction of the dry powder by heating it in aqueous suspension above pH 7.0, decomposing said protein fraction by means of proteolytic ferments and removing the resulting free amino acids and mineral salts by treatment with ion exchangers, the resulting impure hyaluronic acid being then adjusted to pH 3-4 whereby the remaining impurities form with a portion of the hyaluronic acid an insuluble complex which is separated by high speed centrifuging.  The initial dry powder may be obtained by precipitation with acetone, and the protein fraction decomposed by a hydrolase mixture of aspergillus orizae. The product has application as a substitute for the vitreous body of the eye (see Division A5).ALSO:Hyaluronic acid which is pure, highly viscous, sterilizable and is free from proteins, antigens and pyrogens may be used in aqueous solution as a substitute for the vitreous body in the human eye.  The solution is prepared from animal organs containing hyaluronic acid (see Div. C3).
Patent GB-1308702-A (GB)
Title: Intrusion detection apparatus having supervisory control means
IPC: G01S13/56
Filed: 1970-03-10
Abstract: 1308702 Intruder alarms JOHNSON SERVICE CO 10 March 1970 [10 March 1969] 11530/70 Heading G4N [Also in Division H4] A detection system including means radiating microwave energy into an area, a receiver receiving energy reflected from the area and an amplifier having a gain characteristic including two portions, the portion related to frequencies corresponding to lower velocities of targets in the area being of higher gain than the portion related to higher-frequencies wherein the transmitter is modulated to provide a supervisory signal at a frequency in said second portion and the receiver has means for detecting signals in said first portion and means responsive to said supervisory signal. In the intruder alarm system of 11529/70 the transmitter modulator 8 has its frequency and amplitude varied by capacitor 40 and resistor 41. The receiver supervisory alarm circuit 13 comprises a variable band pass filter 50 tuned to the supervisory signal frequency set by modulator 8. Transistor 52 is biased on if no signal is passed, ensuring that transistor 57 is off thereby deenergizing relay 16 and sounding an alarm. If the supervisory signal is present, the negative half cycles thereof are sufficient to turn off trarsistor 52 which thus turns on transistor 57 thereby energizing the relay and preventing the alarm from being triggered.
Patent GB-459749-A (GB)
Title: Method and apparatus for producing or reproducing pictures in colours
Filed: 1935-04-15
Abstract: In a system for reproducing single and multi-coloured pictures from an original picture wherein photo-electric devices operated by light rays passing through or reflected from the original picture control colouring devices adapted to apply the desired colours to a paper or like base, the colour medium is atomized M  under pressure in a chamber and is ejected through a nozzle under the control of a valve or a separate air supply which is actuated in accordance with the photo-electric currents.
Patent GB-1422759-A (GB)
Title: Battery power pack
IPC: H01M2/10
Filed: 1974-03-15
Abstract: 1422759 Mowers WOLF-GERATE GmbH 15 March 1974 [8 June 1973] 11653/74 Heading A1F [Also in Division H1] A power supply 10 for equipment such as garden shears comprises an L-shaped housing 12 in which rechargeable batteries are mounted, the housing being slidable into a recess in the equipment. The housing accommodates five series connected nickel-cadmium batteries (18), Fig. 2 (not shown), 18a and is provided with contacts (20) which engage contacts (22), Fig. 5 (not shown) in the recess to supply power to an electric motor 34. The housing 12, which is made of plastics, forms part of the handle of the shears and is locked in position by a knob 26. A charger plug connection 30 is provided and the power supply 10 may be connected to the equipment such as a spraying device or a motor driven barbecue.
Patent GB-848277-A (GB)
Title: Improved apparatus for mounting a mechanical shovel on a motor vehicle
IPC: E02F3/32
Filed: 1958-04-14
Abstract: 848,277. Shovelling equipment. MIDWESTERN INDUSTRIES Inc. April 14, 1958 [April 25, 1957], No. 11716/58. Class 68(1). To enable a shovel unit to be moved from an upright operative position at the rear of a lorry chassis to a position overlying the chassis when being transported between work sites the shovel unit 31 is pivotally mounted about a horizontal axis 18 on a carriage 15 running along a pair of parallel rails 13, 14 that can be detachably secured to a vehicle chassis 11. The carriage is moved to and fro by a double-acting jack 16 and the shovel unit is swung by double-acting jacks 21, 22. Adjustable ground-engaging legs 30 and bracing struts 34 are provided for stabilizing the boom-carrying frame 30 of the shovel unit when the unit is in use.
Patent GB-1240799-A (GB)
Title: Improvements in and relating to measuring sensing devices for magnetic field measurement
IPC: G01R33/07
Filed: 1969-03-05
Abstract: 1,240,799. Measuring magnetic fields. VARIAN MAT G. m. b. H. March 5, 1969 [March 13, 1968], No. 11792/69. Heading G1N. [Also in Division G3] A Hall plate magnetometer is provided with thermal stabilization in a manner which does not interfere with the output signal. In Fig.1, the Hall plate 1 is mounted within an electrically non-conducting non-ferromagnetic plastics sleeve 3 through which a cooling fluid is circulated by a pump 6. The temperature of the cooling fluid is controlled by a device 7 receiving a set value signal U s  and an actual value signal U 1  from a temperature sensor 9. A control current regulator 14 and output voltage indicator 12 are provided. Alternatively, Fig.2 (not shown), the Hall plate may be surrounded by a high frequency heating coil (15), a filter (17) being provided to remove high frequency interference from the output signal. The Hall plate may be provided with a handle (19) Fig. 3 (not shown) carrying a connection head (20) for the regulation and indication components.