baber/WOPTO huggingface dataset:
Patent GB-1328229-A (GB)
Title: Brake actuating devices
IPC: B60T8/18
Filed: 1970-11-30
Abstract: 1328229 Load responsive brakes KNORRBREMSE GmbH 30 Nov 1970 [29 Nov 1969] 56908/70 Heading F2F In a load-sensitive braking system the piston 16 of an actuating cylinder 13 is connected to the pad of a caliper disc brake via a balance beam 10 and coupling rod 20, the fulcrum 21 of the beam 10 being coupled to a load sensitive device so that the fulcrum is moved, in response to a change of vehicle loading, either by a rod 12 coupled to a load sensing device or as in Fig. 2 by a piston 22 moved by a load-dependent control fluid admitted through a line 25.
Patent GB-1435217-A (GB)
Title: Method and apparatus for producing thermoplastic resin foam receptacles
IPC: B29C69/00
Filed: 1973-12-07
Abstract: 1435217 Sheet forming SEKISUI KASEIHIN KOGYO KK 7 Dec 1973 [8 Dec 1972 5 Oct 1973] 56956/73 Heading B5A [Also in Division B8] A method for producing receptacles from thermoplastic resin foam sheet, e.g. polystyrene, comprises forming a cylinder 2 from a unidirectionally shrinkable sheet 1, bonding the overlapping edges of the sheet, heating the cylinder on a mould form 3 so that it shrinks to intimately contact the surface of the mould form, and compression moulding the shrunken article in a mould 5 to produce a receptacle which has a bottom derived either from a portion of the foam sheet extending beyond the former 3 and which was inwardly gathered to cover the end surface, or from a separate plate 7, Figs. 1f, 2f or 3f, not shown, which is introduced into the mould and bonded to the lower periphery of the article during moulding.
Patent GB-1172380-A (GB)
Title: Catalysts
IPC: B01J23/70
Filed: 1966-12-30
Abstract: 1,172,380. Catalytic electrodes. ROBERT BOSCH G.m.b.H. 30 Dec., 1966 [15 Jan., 1966], No. 58255/66. Heading B1E. [Also in Divisions C7 and H1] Finely divided boron and a powdered metal of Group VIII e.g. Ni, Co or Pt are mixed and sintered to form catalysts. The metal boride may be supported, on plates or discs of Ni or An as catalytic fuel cell electrodes. Al or Mg may be mixed with the B and Ni and partly dissolved out subsequently with acid or alkali. Ammonium carbonate is specified as a pore former.
Patent GB-431379-A (GB)
Title: A machine for laying on and spreading mortar of any aggregate for building either solid or cavity walls, or both and the like
IPC: E04G21/20
Filed: 1934-01-08
Abstract: 431,379. Mortar-applying apparatus. JONASSEN, A. C., Te Rangi, Roundham Road, and WILLMOTT, L. A., Marine View, Clennon Drive, both in Paignton, Devon. Jan. 8, 1934, No. 585/33. [Class 20 (iv)] A machine for laying mortar or like material comprises a slotted container a adapted to travel over the surface on which the mortar &c. is to be laid, and pusher members x, x<1> adapted to force the mortar through the outlet slot or slots in the container and operably attached to two cranks i, i<1> which are geared together and one of which is driven directly by hand. The apparatus is adapted for spreading mortar in connection with the building of solid or hollow brick, concrete, or like walls. The container a has a curved bottom b riveted to side walls a, a<1> and may be provided with two sets of slots 8, 9. Two double-throw cranks i, i<1> are mounted in bearings k, k<1> in the side walls a, a<1> and are connected by chain gearing 2. The extension i2 of the crank i<1> is provided with a handle l and is connected by chain gearing m, n, o with a spindle g mounted in bearings provided in side bars f on the side walls a, a<1>. The spindle g is connected through chain gearing p, q, r with a lower spindle g<1> which is mounted in two bars f on the side walls and carries two toothed wheels s, s<1> constituting runners for the machine. Further runners t<1> are carried on an axle u. Corresponding throws on the two cranks i, i<1> are disposed in the same direction and are interconnected by a curved bar w, w<1>, adjustably mounted on the crank i<1>, and a bar z, z<1> mounted on the crank i. The curved bars w, w<1> are provided with lateral blades x, x<1> constituting the pusher members. Rotation of the handle l thus rocks the members w, w<1> and forces the mortar through the slots 8, 9 and drives the wheesl s, s<1> so as to move the machine along the wall. The path of the members w, w<1> and therefore of the pushers x, x<1> may be varied by altering the angular adjustment of the throws on the crank i<1> relatively to those on the crank i. The throws on the shaft i<1> are larger than those on the shaft i. Sliding plates may be provided for partially uncovering the apertures 8, 9, so as to regulate the depth or width of the mortar streams. Spreading members 10, 12 are adjustably bolted to the trailing end of the device in line with the slots 8, 9, or the rear edges of these slots may be turned downwardly and rearwardly to serve as spreaders. Guides for the mortar may be provided adjacent the slots 8, 9 and extending along the sides of the spreaders 10, 12. The sides a, a<1> extend below the slots 8, 9 and act as guides to prevent lateral movement of the mortar. The device may comprise a number of separate compartments each having one or more outlet slots.
Patent GB-1249364-A (GB)
Title: Data transmission
Inventor: LUCKY ROBERT WENDELL
IPC: H04L25/03
Filed: 1968-12-11
Abstract: 1,249,364. Data transmission systems. WESTERN ELECTRIC CO. Inc. 11 Dec., 1968 [14 Dec., 1967], No. 58798/68. Heading H4P. . The redundancy present in a binary signal 41 is removed allowing a reduction in the average transmitted power and removal of line spectra caused by periodic transmission patterns. A bit an has subtracted from it a predicted value Ô n  derived from the summed outputs of variable attenuators 43 to which a number of preceding bits are applied from a tapped delay line or shift register 42. The resulting analogue error signal e n  is correlated with the delayed bits by multipliers 48 and integrating lowpass filters 47 which control the attenuators 43 in a direction to minimize the error signal. The error signal may be coded for transmission and in this case, since its variance is less than tnat of the input signal fewer bits are required. The receiver, Fig. 5 (not shown), is basically the inverse of the transmitter. The system may also be used for the transmission of multilevel digital signals and analogue samples.
Patent GB-1157759-A (GB)
Title: Field Effect Transistor Amplifier Circuits
IPC: H03F1/34
Filed: 1967-12-29
Abstract: 1,157,759. Field effect transistor amplifiers; automatic volume control. RADIO CORPORATION OF AMERICA. 29 Dec., 1967 [19 Jan., 1967], No. 59108/67. Headings H3T and H4R. In an amplifier having a plurality of stages 10 1 , 10 2 ... 10 n  connected in cascade, each stage consists of a common source connected insulated gate transistor 21, 14 which has a drain load impedance 20, 16 and the output 15 1 , 15 2  from each stage is connected to the gate of the succeeding transistor, the load impedance of at least one of the transistors is formed by the source-drain path of a further insulated gate field effect transistor 20 connected as a source follower and having the gate disposed to receive input signals and a feedback circuit 40 is connected between the output 15 n  of the last stage 10 n  and the gate 21g of the transistor 21 in the first stage 10 1  so as to provide a degenerativefeedback voltage. The feedback circuit may include an insulated gate field effect transistor 40 or this may be replaced by a resistor. Changes in the D.C. level at the output due to thermal effects, threshold voltage changes, supply voltage drift and component aging is fed back to the input 21g to provide degenerative feedback to compensate for these changes. The variations due to the A.C. signal, which may be at radio frequency, are filtered out by a capacitor 41. The load impedances of the 10 2  ... 10 n  stages are shown as insulated gate field effect transistors 16 connected as diodes or alternatively these can each be replaced by a resistor. Several inputs can be connected to separate gate electrodes 20g, 16g 2 -(the earth connection to gates 16g 2  being removed), so that the output represents the combination of these inputs. The input signal can be disconnected from the first stage 10 1  in which case the gate 20g is connected to earth 12. Automatic gain control may be included in the circuit by connecting the source to drain path of an additional insulated gate field effect transistor between the gate and drain electrodes of one of the transistors 14. The AGC voltage signal is then supplied to the gate of the additional transistor. The input 17 1  to the amplifier may be fed from a source (70, Fig. 2, not shown) of slowly varying signal or D.C. signal via the conduction path of an enhancement type insulated gate field effect transistor (80) which conducts alternately with a further similar transistor (90). The input enhancement type transistors (80, 90) conduct alternately when their inputs increase above a certain threshold level and by connecting a detector circuit to the output of the amplifier, operating synchronously with the input transistors (80, 90) the output is converted back to D.C. The circuits may be constructed of individual components or may be formed as an integrated circuit. P or N type transistors may be used of the enhancement or depletion types. The input 19 may be a parallel tuned circuit of a transducer such as a microphone.
Patent GB-1268218-A (GB)
Title: Improvements in or relating to fixed-word stores
IPC: G11C17/00
Filed: 1969-12-04
Abstract: 1,268,218. Read only memory. SIEMENS A.G. 4 Dec., 1969 [5 Dec., 1968], No. 59208/69. Heading G4A. Read only memory has each read-out line in the form of a pair of conductors and a resistance coupling which is between a word-line and one of the pair if a " 1" is stored and between a word-line and the other of the pair if a "0" is stored. Each pair of lines feeds a difference amplifier. The arrangement allows a higher signal to noise ratio to be obtained. The memory may be formed by screen printing or by etching and deposition, the pairs of read lines being formed first, then the cross-over points being insulated and word lines added and a resistor being situated in the space between adjacent word and read lines.
Patent GB-1358180-A (GB)
Title: Electrophotographic photosensitive materials
IPC: G03G5/06
Filed: 1971-12-29
Abstract: 1358180 Vinyl - 2 - phenylbenzimidazoles COPYER CO Ltd 29 Dec 1971 [29 Dec 1970 17 Aug 1971] 60556/71 Heading C2C [Also in Divisions C3 and G2] 2-Phenylbenzimidazoles of the formula where X 1  and X 2  are H or halogen or of the formula where R 1  and R 2  are independently alkyl, ary or aralkyl groups or together with the nitrogen atom form a heterocyclic ring are reacted with acetylene to form the corresponding N-vinyl compounds which are polymerized to form compounds of the formula where n is greater than 1 and X 3  is X 2  or -NR 1 R 2  which are photosensitive. In the examples compounds where X 1  is hydrogen and X 3  is chlorine, bromine or a dimethyl amino group or where both X 1  and X 3  are chlorine are prepared then vinylated and polymerized and 2-phenylbenzimidazole was reacted with N- methyl pyrrolidone and then with acetylene to form the product in which X 1  and X 3  are hydrogen.
Patent GB-1262726-A (GB)
Title: Compliant and self-aligning ball bearing for linear motion
Inventor: THOMSON JOHN BURRY
IPC: F16C29/06
Filed: 1969-12-12
Abstract: 1,262,726. Bearings. J. B. THOMSON, 12 Dec., 1969 [7 May, 1969], No. 60808/69. Heading F2A. A rectilinear-motion bearing with recirculating balls 5 has a number of raceways 3 formed in a ball-retainer 1, each raceway having a load-bearing portion 4 with a load-carrying plate 6 mounted therein, the latter having an intermediate thicker portion whereby it may rock as a shaft 2, which is mounted in the bearing, is angularly displaced from coaxial alignment with the retainer 1. The latter may be formed as an integral unit from a resilient, non- metallic material such as nylon, is provided with grooves 10 which facilitate the insertion and withdrawal of the plates 6, and is undercut at 15, Fig. 2, to receive the plates 6 therein. The plates 6 are each provided with longitudinallyextending tapered edges 12, Fig. 4, with notches 13, and with two longitudinally-extending lands 28 having a depression 27 there between. Each raceway 3 has the load-bearing portion 4 connected to a load-free portion 7 by means of curved portions 8, Fig. 3, and is retained in a hard metal sleeve 30, Fig. 1, by means of rings 32. Seals 34 may be fitted within the latter. In a modification an outer shell 40, Fig. 7, is formed of a resilient non-metallic material such as nylon and is provided with apertures 44, Fig. 9 (not shown), to receive load-carrying plates 46 therein. The latter are each formed with a ball-groove 48, Fig. 11, a groove 52 between lands 54 and with grooves 60. The grooves 60 are each engaged by a projection 62 of the shell 40, the latter having grooves 64 formed therein to increase the resilience thereof. The nylon &c. may have molybdenum disulphide incorporated therein.
Patent GB-684208-A (GB)
Abstract: 684,208. Enamels. CAPART, N. Jan. 23, 1951 [Feb. 2, 1950], No. 1775/51. Drawings to Specification. Class 56. [Also in Group XXVII] A nickel-chrome alloy or steatite element which is positioned across the end of a sparking plug (see also Group XXVII) is coated with a radio-active enamel having the following composition and containing between 0.5 and 10 micrograms of radium bromide per plug:- Felspar ... ... 25-30 per cent by weight Borax ... ... 30-35 " " Quartz ... ... 20 " " Sodium Nitrite ... 5 " " Sand and Soda Mixture ... ... 15-20 " "
Patent GB-2005659-A (GB)
Title: Substituted alpha -Halomethyl Phenylalanines
IPC: C07C239/00
Filed: 1978-06-27
Abstract: Novel pharmaceutically useful compounds of the formula   <IMAGE> and pharmaceutically acceptable salts and individual optical isomers thereof, wherein Y is -CH2F, -CHF2, -CH2Cl or -CHCl2; R1 is hydrogen, (C1-4alkyl)carbonyl, (C1-4alkoxy)carbonyl or -CO-CHNH2-R27 wherein R27 is hydrogen, alkyl of 1 to 4 carbon atoms, benzyl or p-hydroxybenzyl; R is hydroxy, alkoxy of 1 to 8 carbon atoms, -NR7R8 wherein R7 and R8 are the same or different and are each hydrogen or alkyl of 1 to 4 carbon atoms or -NH-CHR9-COOH wherein R9 is hydrogen, alkyl of 1 to 4 carbon atoms, benzyl or p- hydroxybenzyl; and R2, R3, R4, R5 and R6 are various combinations of hydrogen, methyl, ethyl, tert-butyl, halogen, trifluoromethyl and OR10 wherein R10 is hydrogen, alkyl of 1 to 8 carbon atoms, (C1-6alkyl)carbonyl, benzoyl or phenyl (C1-6alkyl)-carbonyl or R3 and R4 together are methylenedioxy.
Patent GB-2003594-A (GB)
Title: Improvements in or relating to suction devices for extraction of exhaust gases from vehicle exhaust pipes
IPC: B08B15/00
Filed: 1978-07-28
Abstract: A suction device 1 for extracting exhaust gases from motor vehicles has a nozzle 6 adapted to be connected to the exhaust pipe 9 of a vehicle 8. The suction device has at its connecting end a lid 10 which, by means of a hand control 15 mounted on the suction device on a level convenient for the operator, can be pivoted between a position for closing the mouth 7 of the nozzle and a position for opening the mouth of the nozzle. <IMAGE>
Patent GB-2002962-A (GB)
Title: Electrical switch
IPC: H01H21/60
Filed: 1978-08-07
Abstract: An electrical switch comprises an insulating housing 2 containing a fixed contact 35 and a moveable contact member 31, and a terminal members 12,46,47 electrically connected thereto. In order to be able to connect the moveable contact member 31 to a respective terminal member 12, the moveable contact member 5 is in the form of a two- armed lever, one arm 30,31 of which cooperates with the fixed contact 35 and the other arm 8,10 of which maintains permanent sliding contact with the respective terminal member 11,12. The switch finds particular application as a low-voltage isolating switch, for use, for example, in underground mining. <IMAGE>
Patent GB-2025033-A (GB)
Title: Apparatus for Reducing the Heat Losses of Gas-fired Space Heaters
IPC: F23N3/04
Filed: 1978-09-06
Abstract: Apparatus for reducing the heat losses of gas-fired space heaters comprises a bimetal member (7) in the form of a helical coil wound around a bar (3) which is rotatably adjustably mounted in a waste gas pipe (1), and a pivotal flap (10) mounted on the bar (3) to vary the available flow section of the waste gas pipe (1). One end 6 of the coil is inserted into a slot 8 in the bar 3, and the other end of the coil extends freely and contacts a bracket 11 which is mounted on the pivotal flap. The bimetal member (7) is mounted on the side of the pivotal flap (10) which, in the closed position of the pivotal flap, is the upstream side having regard to the direction flow of the exhaust gases. <IMAGE>
Patent GB-2006503-A (GB)
Title: Tone generator for electronic music instrument
IPC: G10H1/18
Filed: 1978-09-15
Abstract: A cycling shift register 33 produces timing pulses at 36 whose timing is dependant on which key 31 is depressed and which trigger a circuit 40 to sample and hold the value of a logarithmic function 39 started at the start of each cycle of the register. The value held controls a voltage controlled oscillator 41 to provide the tone signal. An envelope generator 43 is also started at the same time as the function generator. <IMAGE>
Patent GB-2031053-A (GB)
Title: Improvements in or Relating to Interlock Mechanism
IPC: A47L15/42
Filed: 1978-09-29
Abstract: An interlock mechanism for holding closed the access door of a dish washer, tumbler dryer, spin dryer for example comprises a door latch 1 on which a switch actuator 6 is slidably mounted. The actuator is in the form of a metal strip with an angled portion 7 at one end and an upturned lip 8 at the other. Also mounted upon the latter is a microswitch 5 operable by the portion 7 when the actuator 6 is moved relatively to the latch. The mechanism may be associated with a timer and a thermally responsive device 31 in a manner such that the door cannot be opened except under specified conditions. <IMAGE>
Patent GB-2031563-A (GB)
Title: Indirect fired water heater
IPC: F24H1/18
Filed: 1978-10-11
Abstract: An indirect fired water heater has a lined metallic vessel 12 of a multi- piece construction, having upper and lower portions welded together. The vessel contains potable water which is heated by contact with a finned tube heat exchanger 14 through which passes hot boiler water. The vessel is lined with a plastic material or the like 13 to prevent corrosion of the vessel. Insulation is provided around the exterior of the lined vessel to prevent undue heat loss by radiation and takes the form of insulating material applied to the exterior vessel surface, or a vacuum space between the vessel and an outer vessel surrounding the lined metallic vessel. <IMAGE>
Patent GB-2036841-A (GB)
Title: Security Communication Device
IPC: E06B7/30
Filed: 1978-12-13
Abstract: A communication unit for a security barrier comprises extruded corrugated baffle members 24 stacked between like extruded upper and lower walls 11, 12 to provide tortuous sound transmitting passage therebetween laterally limited by side walls 18. The baffle members are held in place by engagement with grooves 15 in the upper and lower walls and also by grooves 25 in the side walls and/or by spacers 30. The front and back of the unit are formed by grilles 22 received in grooves 17 at the edges of the upper and lower walls. <IMAGE>
Patent GB-2043240-A (GB)
Title: Improvements in or relating to the switching of signals
IPC: H04B10/25
Filed: 1979-03-01
Abstract: An optical switch comprises a plurality of input ports 10 which are coupled via waveguide means 16 to a plurality of output ports 11. Each output port 11 has an associated wavelength selector 22 which can be a tunable filter. Each input port 10 is arranged to receive optical signals of a wavelength which is different from the wavelengths of signals received at the other inputs; and the particular wavelength required at a particular output is obtained by tuning the filter 22 associated with that output. Alternatively each wavelength selector 22 is a filter for passing a particular wavelength; and the wavelength required at a particular output 11 is provided by tuning a selected one or combination of the input wavelengths. <IMAGE>
Patent GB-2017524-A (GB)
Title: Removal of acid gases from a gas mixture
IPC: B01D53/77
Filed: 1979-03-20
Abstract: Acid gases e.g. H2S, CO2, COS, are removed from a gas mixture by contacting at elevated pressure with an aqueous solution of a dialkyl-mono- alkanolamine (in particular diethyl- mono-ethanolamine), which aqueous solution does not contain a sterically hindered amine, i.e. a compound containing a secondary amine group bonded to a secondary or tertiary carbon atom, or a primary amine group bonded to a tertiary carbon atom. A physical solvent (e.g., sulfolane) may be present in the aqueous solution. The gas mixture may be natural gas, a gas obtained by the gasification of petroleum or coal, or a gas obtained by conversion of carbon monoxide and water into carbon dioxide and hydrogen.
Patent GB-2017902-A (GB)
Title: Method of and apparatus for determining number of sheets in a stack
IPC: G06M9/00
Filed: 1979-03-28
Abstract: Reflected energy density signal as a function of distance in pulse counts determined from a side 24 of stacked sheets 26 is used to calculate sheet pulse counts. A working pulse range is determined from the nominal thickness range of the stacked sheets 26 and thereafter pulse values within the working pulse range are selected. The calculated sheet pulse counts and selected pulse values are compared and acted on to develop a pair of sheet counts for each selected pulse value. The pair of sheets counts occurring at least 10 consecutive times is considered the number of sheets 26 in the stack 34. <IMAGE>
Patent GB-2023277-A (GB)
Title: A system for controlling the temperature of rooms in a building
IPC: F24D3/14
Filed: 1979-04-19
Abstract: A system is disclosed for controlling the temperature of rooms in a building comprising curtain walls having a metal skeleton (3) made up of columns and horizontal members to which facade elements and window elements are secured, and in particular for controlling the effects by which persons within such rooms and located adjacent such columns and horizontal members may feel undue heat or cold due to heat radiation exchange between the person and such columns or horizontal members. In the system, a pipeline system 20, 21 in which a heat transmitting fluid flows is disposed inside each room concerned adjacent the metal skeleton 3 and is aligned relative to the skeleton 3 so as to produce thermal coupling between the skeleton 3 and the pipeline system. The system may also include a ventilation system comprising air ducts running adjacent to the pipeline system. <IMAGE>
Patent GB-2024767-A (GB)
Title: Improvements in or relating to load lifting and lowering apparatus
IPC: B60P1/46
Filed: 1979-07-23
Abstract: Load lifting and lowering apparatus comprises a pair of parallel, spaced apart, rigid upright guide members (10, 11) along each of which travels a runner (13, 14). Pivotally mounted at the bottom of the runners (13, 14) is a platform (15). A ram (16) is secured to one guide member (10) and a lever (20) is secured to the platform (15) and extends towards the vehicle (12). When the runners are in a raised position, the ram (16) is engageable with a hook portion (21) of the lever (20). Extension of the ram (16) in this position causes rotation of the platform (15) to a vertical, closed position. <IMAGE>