baber/WOPTO huggingface dataset:
Patent GB-472232-A (GB)
Title: Improvements in or relating to anti-dazzle lights
IPC: F21S8/10
Filed: 1936-03-16
Abstract: 472,232. Vehicle antidazzle screens. WIEMER, K., and COTTE, E. March 16, 1936, No. 7910. Convention date, March 15, 1935. Drawings to Specification. [Class 103 (ii)] [Also in Group XI] The Specification as open to inspection under Sect. 91 comprises a construction of vehicle windscreen for analyzing a beam of polarized light projected from another vehicle, in which an aqueous solution such as a solution of sodium nitrate or a solid polarizing material is enclosed between two plates. In the case of a solution the height of the liquid layer is adjustable. This subject-matter does not appear in the Specification as accepted.
Patent GB-739851-A (GB)
Title: Improvements in or relating to the production of colloidal silver dispersions
IPC: B01J13/00
Filed: 1954-03-18
Abstract: A yellow colloidal silver dispersion is made by reducing an aqueous silver bromide sol in the presence of a colloid with a reducing agent having a reduction potential of at least 0.3.  In example I aqueous gelatino silver nitrate and ammonium bromide solutions with the bromide in slight excess are mixed at 80 DEG  F., made slightly alkaline with caustic soda, reduced with hydrazine, and then treated as in photographie emulsion technique to remove soluble salts and prepare the dispersion for coating in layers. Examples II to VI describe a similar procedure using polyvinyl alcohol and acetal as colloids.  Other soluble silver salts, bromides and colloids for the purpose are quoted.  Specifications 598,477, 600,023 and 600,039, [all in Group XX], are referred to.
Patent GB-1247491-A (GB)
Title: Improvements in monitoring apparatus
Inventor: MAYNARD DOUGLAS EDWARD
IPC: A61B5/0476
Filed: 1967-10-31
Abstract: 1, 247, 491. Electro-medical apparatus. NATIONAL RESEARCH DEVELOPMENT CORP. Oct. 29, 1968 [Oct. 31, 1967; Feb. 19, 1968], Nos. 49301/67 and 8085/68. Heading G1N. Apparatus for monitoring electrical signals in the human brain comprises a filter having a lower predetermined frequency such that signals originating from psycho-gelvonic responses and sweating are rejected, an upper predetermined frequency below 30 Hz and such that signals originating from muscle action potentials are rejected but rhythmic activity of cortical origin is not, the filter having a frequency versus loss characteristic in which loss decreases with increase in frequency between the lower and upper predetermined frequencies at a rate which provides compensation for the change in amplitude of random electrical activity of the brain with frequency, in that in operation the amplitude of the filter output signals due to the said random activity is substantially constant between the predetermined frequencies. The lower predetermined frequency is above 0À3 Hz and the loss decreases with increase in frequency at between seven and twenty decibels over the range three to twelve hertz, Fig. 4 (not shown). The lower frequency may be variable over the range two to twelve hertz and the upper frequency over the range eight to twenty hertz.
Patent GB-1505112-A (GB)
Title: Catalytic hydrodealkylation of alkylaromatic hydrocarbons
IPC: B01J23/75
Filed: 1975-02-26
Abstract: 1505112 Hydrodealkylating alkylaromatic hydrocarbons INST FRANCAIS DU PETROLE 26 Feb 1975 [1 March 1974 29 April 1974] 8093/75 Heading C5E [Also in Division B1] A process for the catalytic hydrodealkylation of an alkylaromatic hydrocarbon comprises contacting the hydrocarbon, substantially sulphur-free, at a temperature in the range 400 to 650 C., in the presence of hydrogen, under a pressure in the range 1 to 40 kg./cm.<SP>2</SP>, with a spatial velocity in the range 1 to 10 and a ratio of the hydrogen to the hydrocarbon, expressed as moles per mole at the outlet of the reactor, in the range 1 to 10, and a catalyst which comprises: (a) a carrier; (e.g. alumina) (b) at least one element selected from cobalt, ruthenium, rhodium, palladium, osmium, iridium and platinum, at a concentration in the range 0À05 to 20% by weight of catalyst when the selected element is cobalt, and at a concentration in the range 0À05 to 5% by weight of the catalyst when the selected element is chosen from ruthenium, rhodium, palladium, osmium, iridium, and platinum; and (c) at least one additional element selected from zinc, cadmium, gallium, indium, thallium, manganese, copper, silver, gold, yttrium, titanium, niobium and tantalum, said element being at a concentration in the range 0À05 to 5% by weight of the catalyst; the catalyst being alkali-metal-free.
Patent GB-645835-A (GB)
Title: Improvements in or relating to modulating circuit arrangements
IPC: H03F3/40
Filed: 1947-03-24
Abstract: 645,835. Condensers. PHILIPS LAMPS, Ltd. March 24, 1947, No. 8016. Convention date, March 27, 1946. [Class 37] [Also in Groups XXXIX and XL (c)] A condenser has a crystal dielectric of titanate salts, the capacity varying according to the voltage and/or current applied, whereby it can be used in an amplifying circuit (see Group XXXIX). A single crystal 3, Fig. 10, embraced by several pairs of condenser plates 2, 2<SP>1</SP>, 2<SP>11</SP>, 2<SP>111</SP> may be used, resistances 6, 6<SP>1</SP>, 6<SP>11</SP> being connected directly to the condenser plates to form the unit shown in circuit in Fig. 1.
Patent GB-778449-A (GB)
Title: Improved take-off means for lace machines
Inventor: HASLAM-JONES FRANK HORSFIELD
IPC: D04D9/00
Filed: 1954-03-19
Abstract: 778,449. Lace machines. JARDINE, Ltd., J. March 15, 1955 [March 19, 1954], No. 8120/54. Class 74 (1). A lace machine take-off porcupine roller 2 is driven with a continuous motion by chain- and-sprocket drive 14 acting through an epicyclic gear 15 and a spur-gear reduction train 16. The epicyclic gear comprises a cage 17 driven by the sprocket drive, and planet pinions 21, 22 having slightly differing numbers of teeth, borne by the cage, coupled together, and rotating around sun-wheels 23, 24 also having slightly differing numbers of teeth and connected respectively with a ratchet-wheel 27 and the train 16. Drive is or is not transmitted through the epicyclic gear according as to whether rotation of sun-wheel 23 is prevented or not. To prevent rotation of wheel 23, ratchet-wheel 27 is engaged by one or another of these pawls 30, 31, 32 so closely spaced circumferentially of the wheel that one of them will be certain to engage a tooth immediately. The pawls are controlled by suitable means 33. The reduction train comprises a gear 29 connected to the sun-wheel 24, exchangeable coaxial and interconnected gears 34, 37 rotatable in a slotted bearing 35 on an arm 36 pivoted to the machine frame, and a gear 38 fixed to the porcupine roller. The take-off roller 1 rotates in open topped slots 4 and can be removed to an accessible position, when desired, by rocking a frame 6 about a pivot 7 so that the roller is picked out of its bearings by a hooked arm 8 and rolls down the frame 6 into hooks 10. The frame 6 is retained in its inoperative position by a catch 11, controlled through means 13.
Patent GB-1505141-A (GB)
Title: Anti-slip device for preventing slipping on a walking surface
IPC: A45B9/04
Filed: 1975-02-27
Abstract: 1505141 Shoes S RYDBERG 27 Feb 1975 [27 Feb 1974 25 Sept 1974] 8153/75 Heading A3B An anti-slip device for attachment to a shoe comprises a protrusion 2 connected by an upwardly diverging flange Ting 4, preferably of rubber, to a sole or heel &c. 6 provided with a hollow portion 7, the protrusion 2 having an element 1 bonded or vulcanised to it above its convex surface-contacting extremity such that when slipping occurs on a surface, e.g. ice, packed snow, wet rocks etc., the extremity pivots to engage the lower edges 3 of element 1 with the surface. The flange ring 4 is thinner on one side for preferential direction of pivoting of protrusion 2 and on its thicker side has extensions 5 directed towards hollow portion 7 which limit the pivoting angle. The element 1 is of metal and the surface-contacting extremity of protrusion 2 preferably incorporates pieces of material which increase friction to initiate pivoting. The element 1 may comprise various shapes, viz. a ring having a concave cross-section, Fig. 1; a cylindrical cross-section having outwardly directed end flanges (3) and an inwardly pointing flange (8) in the upper portion (Fig. 2. not shown); a strip bent into a ring with at least one end (9) bent inwardly towards the centre of the ring (Fig. 3, 4, not shown); a frusto-conical plate 11, Fig. 5, having downwardly projecting teeth 10 extending outwardly from protrusion 2 which may have a concave recess (12) on its surface erigaging portion to act as a suction cup on wet surfaces (Fig. 6, not shown), or a number of concave recesses (13) (Figs. 7a and b not shown); a circular plate 14, Fig. 8, provided with a central upwardly projecting pin 15 which extends through a central hole in protrusion 2 and held by a tab 16, bonded in protrusion 2, having resilient fingers which bear against pin 15, or a tab 16 not bonded to the protrusion 2. Fig. 9, there being a metal flange 17 which protrudes beyond the edge of plate 14.
Patent GB-703768-A (GB)
Title: Improvements in or relating to mechanical pencils
IPC: B43K21/12
Filed: 1951-04-09
Abstract: 703,768. Pencil holders. SHELLY, J. W., and EVERSHARP, Ltd. April 8, 1952 [April 9, 1951], No. 8155/51. Class 146(3) In a propelling pencil of the kind in which a normally stationary helically - slotted member 6 is engaged by lugs 12 and 18 carried respectively by a lead holder 5 and a lead ejector 19 both slidable axially of the pencil barrel 1 and rotatable relatively thereto by engagement with a slotted tube 3, the lug 12 is rotationally constrained to, but slidable relatively to the lug 18 to, a limited extent. 'Forward movement of the lead' holder, effected by rotation of a tip 2 relatively, to the barrel 1, is limited by a shoulder 15 in the tip 2, so positioned that when arrested. the holder 5 is disengaged from the helical member 6, while forward movement of the lug 18 is subsequently arrested 'by engagement with the lug 12 to maintain the lug 18 in engagement with the helical member. Continued rotation of the lug 18 in this position causes rotation of the normally stationary helical member 6, thus preventing damage caused by overwinding. The helical member 6 is secured at its point end to a bush 8 supported on the chamfered upper end of a bush 9 fixed to the barrel 1 and engages at its rear end an abutment 7 secured to the slotted tube 3, such that the helical member is slightly compressed. The ejector 19 is slidable longitudinally in the lead holder 5, such that on reverse rotation of the tip 2, the lug 18 is retracted to engage a stop 20 on the holder 5, thus causing, on further rotation, retraction of the lug 12 into engagement with the helical member 6. The lower edge 23 of the rear end of the helical member 6 may be recessed to form a shoulder for engagment with the lug 18 when fully, retracted, thus-causing, on further rotation of the tip 2, rotation of the helical member 6. to prevent damage caused by overwinding.
Patent GB-686886-A (GB)
Title: Improvements in radio beacons
IPC: H01Q25/00
Filed: 1951-04-09
Abstract: 686,886. Radio navigation. SVENSKA AKTIEBOLAGET CASACCUMULATOR. April 9, 1951 [April 18, 1950], No. 8174/51. Class 40 (vii). A radio beacon transmitting a directed field modulated with a statement of the angular direction of the field at predetermined angles includes means for reversing the direction of the field between each modulated transmission of bearing information. The beacon may be a speaking beacon and if so its speed of rotation is limited by the time taken to speak the bearings in a complete rotation. For a beacon having a directed field rotating at constant angular velocity and announcing the bearing angle at 10 degree intervals the system of the invention is preferred. In such a system the beacon has a field pattern 10 which may be reversed to give the alternative pattern 11. The aerial system rotates with constant angular velocity and as pattern 10 passes between - 5‹ and +5‹ transmits " 0," at +5‹ the pattern is reversed. to pattern 11 which moves from 185 to 195 degrees as " 190 " is transmitted, a further reversal then takes place in readiness for " 20 " to be transmitted and so on. In one embodiment (Fig. 4), similar broadside arrays 25 and 26 spaced a quarter wavelength apart are used to obtain patterns 10 and 11. The aerial system as a whole is driven by motor 30 through reduction gears 31 and 32 as is the magnetophone 37 which feeds the bearing information to modulate transmitter 35. Power from the transmitter is fed through slip rings 33 and 34 to the aerial and the changeover between patterns 10 and 11 is achieved by means of switch 46 operated by cam 47 rotated in synchronism with the aerial drive 29. The field patterns of which 10 and 11 are the major lobes may also have side lobes such as 19, 20, 21 and 22 and these may be covered according to a feature of the invention by a transmission on a figure of eight radiation pattern 23 and 24 with its axis perpendicular to that of patterns 10 and 11. Preferably the radiation on this figure of eight pattern is modulated by a tone signal of 1000 c/sec. interrupted at regular intervals by an identification signal. In Fig. 4 the aerial array 27 radiating the figure of eight pattern is mounted above the main beacon aerial system and comprises pairs of dipoles separated from each other by an eighth of a wavelength. The distance apart of the pairs is three-quarters of the wavelength and the pattern produced is, as shown, substantially circular over a wide arc. Array 27 is fed from transmitter 41 which is modulated by magnetophone or similar generator 42 coupled by pulleys 43 and 44 to the motor drive. It is proposed that shaft 45 should make 0.97 of a revolution for each revolution of shaft 38 so that the identification signals are not radiated in precisely the same relationship to the rotation of the system in every cycle of operations.
Patent GB-849635-A (GB)
Title: Cylinder construction for fluid pumps or motors
Inventor: COMMANDER FREDERICK VINCENT
IPC: F16J10/02
Filed: 1958-03-14
Abstract: 849,635. Cylinders. LUCAS (INDUSTRIES) Ltd., J. March 12, 1959 [March 14, 1958], No. 8222/58. Class 122 (1). A rotatable cylinder block for a swash-plate type fluid pump or motor comprises tubes a adapted to receive spring-loaded plungers (not shown) and secured at one end to a disc b. The disc is formed at one end of a driving shaft c and is recessed to receive one end of the tubes which are in mutual contact and secured to the disc and to each other, their lines of contact by copper or other brazing. In use, ports d in the disc co-operate with ports in a valve plate (not shown).
Patent GB-681888-A (GB)
Title: Improvements in oscillating vane motors
IPC: B60S1/10
Filed: 1951-04-10
Abstract: 681,888. Oscillating-vane motors. TRICO PRODUCTS CORPORATION. April 10. 1951 [April 13, 1950], No. 8321/51. Class 110(ii) A windscreen-wiper motor of the type described in Specification 623,567 has a "parking " duct leading to one side only of the working chamber independently of the automatic change-over valve mechanism and a control valve 22 which is operated to connect the source of pressure, or suction, to the motor supply port or to the " parking duct. Passages 32, 34 which connect with the supply ports 15, 16 alternately during the operation of the motor, are of equal length so as to ensure an even to-and-fro movement of the vane in the motor chamber. For parking the wiper, a port 35 is provided in the control-valve seat, which opens into the motor chamber through the seat 33. When the control valve 22 is in its parking position, Fig. 5 (not shown) a transverse recess 27 bridges the port 35 and the supply port 30. A push-pull wire 36 is used to move the valve 22. A vent 37 admits atmospheric air to the passage 32 during parking.
Patent GB-451295-A (GB)
Title: An improved water flow meter
IPC: G01F1/28
Filed: 1935-03-18
Abstract: 451,295. Flow-meters etc.; valve accessories. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London.-(Seewer, P. W. ; c/o Associated British Manufacturers (Egypt), Ltd., Building B, Sharia Emad el Din, Cairo) March 18, 1935, No. 8369. [Classes 69 (i) and 135] A flow-meter speed indicator, &c., comprises an immersed vane 2 of aeroplane wing form, subject to the opposing actions of a counterweight or spring 9, and the fluid stream The vane may actuate an indicating pointer 6, recording or integrating apparatus, or the regulat ing-valve of hydraulic power plant. A dashpot 11 and inspectior windows 12 may be provided.
Patent GB-1142473-A (GB)
Title: Feeds for ruminant animals
IPC: A23K50/15
Filed: 1965-02-26
Abstract: 1,142,473. Feeds for ruminant animals. LIQUIFEEDS Ltd. and M. H. BRIGGS. 25 Feb., 1966 [26 Feb., 1965], No. 8461/65. Heading A2B. A feed for ruminant animals comprises as a synthetic source of nitrogen urea, biuret, ammonium carbonate, ammonium phosphate, ammonium acetate or glycine and an unsaturated aliphatic compound containing at least one carbon to carbon double bond. The unsaturated aliphatic compound may be a hydrocarbon, a fatty acid (e.g. oleic, linolenic, linoleic, arachidonic and palmitoleic acids), a fatty acid ester, a fatty aldehyde, a fatty ketone, a water soluble salt (e.g. sodium) of a fatty acid or a vegetable or animal oil (e.g. split cottonseed oil). Other substances which may be present in the feed, include proteins, carbohydrates, minerals, valeric acid, leucine, isoleucine and molasses. The feed may be in a liquid form or in a solid block form.
Patent GB-554216-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C19/08
Filed: 1942-06-20
Abstract: 554,216. Wheels for vehicles. UNITED STATES RUBBER CO. June 20, 1942, No. 8486. Convention date, July 29, 1941. Drawings to Specification. [Class 144 (ii)] In order to reduce static electric charges in pneumatic tyres, powdered conducting material not containing rubber is distributed as a film on the inside of the crown of the inner tube, or between the inner tube and the cover, or on the outside of the cover. Suitable materials mentioned are acetylene carbon black; electrically conducting carbon black; graphite; and aluminium or bronze powder.
Patent GB-1457398-A (GB)
Title: Air control valve for a pneumatic brake system
IPC: B60T15/02
Filed: 1975-02-28
Abstract: 1457398 Tractor-trailer braking systems; valves MIDLAND-ROSS CORP 28 Feb 1975 [11 March 1974] 8499/75 Headings F2F and F2V A control valve 10 for use in a tractor-trailer braking system has a valve body 70 with a first chamber 72 and a second chamber 73 open at one end and communicating with the first chamber at the opposite end, first and second ports 60, 61 communicating with chamber 73 and third and fourth ports 62, 63 communicating with chamber 72; a first plunger 76 and sealing means 81, 89, 91, 93 associated therewith preventing fluid communication between port 62 and chamber 73 when the plunger is in a first position and between port 63 and chamber 73 when in a second position and a second plunger 79 within chamber 73 movable between first and second positions, second sealing means 116 to isolate port 60 from port 61 and chamber 72 and to provide communication between port 61 and chamber 72 when the second plunger is in a first position and third sealing means 119 to prevent communication between chambers 72, 73 and provide communication between ports 60, 61 when the second plunger 79 is in its second position. The brake system includes a drivers valve 21, parking brake control valve 46, reservoir 18 charged by a compressor 14, service brake 24, and spring-set brake 25 as well as valve 10 and a protector valve 33, the trailer having a reservoir 41 charged through a conventional relay valve 40. The first port 60 is in constant communication with the source of compressed air or reservoir 18, the second port 61 communicates with the trailer coupling means, the third port 62 is connected to the outlet of the parking brake control valve 46 and the fourth port 63 is vented to atmosphere. The valve 10 is operated manually through the second plunger 79 by means of a handle 126 the plunger having a surface 120 from which depends a semicircular boss 121 and actuating lug 123 which can engage plunger 76, or automatically through pressure responsive plunger 76. For normal operation ports 60, 63 are sealed and ports 61, 62 are connected in the "failsafe" or the parking position, ports 60, 62 are sealed and ports 61, 63 are connected and when the tractor is uncoupled from the trailer, the valve is moved manually so that ports 60, 62 are sealed and ports 61, 63 are in communication and the valve is locked in this position by lug 123 when the boss 121 and plunger are rotated by means of the handle 126.
Patent GB-917620-A (GB)
Title: Pressure control valve
IPC: G05D16/10
Filed: 1961-03-08
Abstract: 917,620. Valves. ANDALE CO. March 8, 1961 [March 15, 1960], No. 8547/61. Class 135. A spring-loaded lift-type pressure relief or regulating valve opened by the inlet pressure acting on the valve member 21, has a closure surface 29 on the downstream side of this valve member which is presented toward a valve seat 30 intermediate the inlet 8 and outlet 9 so that in the event of failure of the spring 32 the valve member closes upon this intermediate seat to shut-off the flow.
Patent GB-1415204-A (GB)
Title: Flat detonating cord
IPC: C06C5/04
Filed: 1973-02-21
Abstract: 1415204 Detonating cords INSTITUT. GORNOGO DELA IMENI A A SKOCHINSKOGO 21 Feb 1973 8550/73 Heading F3A A flat detonating cord comprises a band 1, Fig. 1, of explosive material and a layer 2 of reinforcing material. The reinforcing layer is made of glass fibre, textile cord, celluloid or any other material exhibiting specific elongation which is smaller than that of the band of explosive. To enable the cord to be attached to explosive charges, workpieces or further lengths of cord, it is provided with a layer 6 of adhesive protected by a removable layer 9, e.g. of silicone paper. Heat resistant lacquer 11 protects the sides of a reel of the cord. In another embodiment (Fig. 3, not shown) two insulated electric conductors (12) having the same ultimate specific elongation as the explosive band extend longitudinally through the band to ensure its integrity, but rupture if the band ruptures to register the breakage. Adhesive material is applied at spaced intervals along the band and is left partly exposed so as to prevent spontaneous unwinding of a reel of the cord. In another embodiment, Fig. 2, holes 4 in a layer 3 of reinforcing material are filled with explosive and communicate detonation from one explosive band 5 to the other if a damaged area is encountered in one of the bands. A spring clip (15), Fig. 4, not shown, or adhesive tape, can be used to join two lengths of the cord together if they are not provided with adhesive layers.
Patent GB-874833-A (GB)
Title: Improvements in or relating to mass spectrometers
Inventor: BISHOP JOHN
IPC: H01J49/02
Filed: 1958-03-17
Abstract: 874,833. Mass spectrometers. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 5, 1959 [March 17, 1958], No. 8555/58. Class 39(1). A collector head for a mass spectrometer has a fixed collector electrode 64 disposed behind a slotted collector electrode 32 which is rotatable in a plane transverse to the ion beams to allow for twisting of the ion beams. The collector electrode 32 has a centrally placed rectangular slot 37 and is disposed between two secondary electron suppressor rings 33 having rectangular apertures and two guard rings 34 having circular apertures. The electrodes 32, 33, 34 are supported on ceramic pillars 28 within a tubular sleeve 17 which can be rotated by means of a push rod and bellows mechanism, not shown. The effective width of the slot 37 in the collector electrode 32 can be adjusted by moving a slide 38, mounted on the collector electrode 32 and having a corresponding slot 40, by means of a push rod 41 and bellows mechanism 45. Metal sections 61 in the glass to metal seals 58, 72 are used for taking off the ion current to the collector electrodes 32 and 64, respectively, for measurement purposes.