baber/WOPTO huggingface dataset:
Patent GB-1391962-A (GB)
Title: Methods in or relating to clamping apparatus for use in bonding brake block linings to brake shoe tables
IPC: F16D69/04
Filed: 1972-04-28
Abstract: 1391962 Bonding of brake linings to shoe tables L FRIEDMAN 28 April 1972 [30 April 1971] 43461/74 Divided out of 1391961 Heading F2E The Specification describes the bonding of brake linings to shoes tables as set out in the copending Specification 1,391,961, from which this is divided, but the claims relate to a method of such bonding, comprising supporting such a shoe table, disposing on an outer surface thereof a lining, providing a heat curable bonding material on the mating surfaces of the table and lining, applying a force between them providing a pressure of over 2000 pounds per square inch, and maintaining this force while subjecting the lining and the table to heat of a curing furnace.
Patent GB-441386-A (GB)
Abstract: 441,386. Spark-gaps in ignition circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and GRIFFITHS, L., 78, Biggin Hall Crescent, Coventry. July 18, 1934, No. 21038. [Class 7 (iv)] An external spark gap between À025" and À035" is used in the ignition circuit. The drawings accom panying the Provisional Specification show an annular gap G formed between metal members 2, 3 which are connected to the cable 7, and the sparking-plug terminal, and are secured in a sleeve 4 of insulating material.
Patent GB-1337778-A (GB)
Title: Polyazo dyestuffs their manufacture and use
IPC: C09B43/32
Filed: 1971-09-22
Abstract: 1337778 Silver dye bleach process CIBAGEIGY A G 22 Sept 1971 [24 Sept 1970] 44183/71 Heading G2C [Also in Division C4] Dyes of the formula:- A-N=N -M-D-M'-N=N-A' are used as image dyestuffs for the silver dye bleach process. In the above formula A and A' denote naphthalene radicals which in the 1- or 2- position contain the azo group, in the 2- or 8- position contain an amino group, in the 8- or 1- position contain an OH group and contain an SO 3 H group meta to the OH group and optionally contain a further SO 5 H group in the amine substituted ring; M and M' denote 1, 4- or 1, 3-phenylene which is substituted by -CF 3 , -CN, SO 2 T or -SO 2 NR 1 R 2  and optionally additionally by alkyl, alkoxy, or halogen; T is alkyl, cycloaklyl, aralkyl or aryl; R 2  is H or alkyl; or R 1  and R 2  together with the N atom form a 5- or 6-membered ring and D is an aliphatic, aromatic or heterocyclic radical bonded in the manner of an amide to M and M' or the diamide radical of carbonic or oxalic acid. The dyes contain at least 2 SO 3 H groups. The dyes are added to an aqueous gelatine solution mixed with a gelatine containing silver halide and cast on to a substrate to give a layer. The dyes may also be used in multilayer material which contains a layer dyed with a cyan dyestuff which is selectively sensitive to red, a layer dyed with a magenta dye of the above formula which is sensitive to green and a layer dyed with a yellow dyestuff which is sensitive to blue. The dyes may also be incorporated into an auxiliary layer or a layer adjacent to the light sensitive layer.
Patent GB-1070784-A (GB)
Title: Improvements in or relating to laminated magnetic circuits
IPC: H01F27/245
Filed: 1963-11-08
Abstract: 1,070,784. Transformers. M. L. E. JEAN and M. M. JEAN. Nov. 8, 1963 [Nov. 10, 1962]. No. 44245/63. Heading H1T. A magnetic circuit for a transformer is constructed from laminate layers in such a way that in each layer, winding leg portions 11, 12 are connected to yoke portions 13, 14 by stepped joints at their ends. The stepped joints CD, C 1 D 1 , C 2 D 2 , C 3 D 3  in each layer may be arranged to lie on one side of their respective end diagonals A 1 C, A 2 C 1 , A 3 C 2 , AC 3  so that on suitable orientation of each successive layer joints of neighbouring layers may be made to overlap. Each layer comprises a number of trapezoidal laminations having steps cut along their non-parallel sides; laminations being of grain Oriented material. Such stepped joint connections may be used in the construction of cores for three-phase transformers (Fig. 4, not shown).
Patent GB-1531995-A (GB)
Title: Vehicle simulator seat
IPC: G09B9/10
Filed: 1975-10-30
Abstract: 1531995 Air cushions SINGER CO 30 Oct 1975 [6 Nov 1974] 44813/75 Heading A4M [Also in Division B7] A vehicle simulator seat for applying simulated acceleration forces on an occupant of the seat, has a support surface constituted by a plurality of individually movable plates 15, 21 25. The plates are secured to inflatable bellows-type cells (35), (43), (51) Figs. 2A - 2C (not shown), and the cells are individually inflated under the control of a computer (91), Fig. 4 (not shown), to displace the respective plates. The bellows are metallic or plastics and have predetermined tension spring rates. The cells may be provided with transducers (93) Fig. 4A (not shown), to provide a feedback of the actual displacements of the respective plates. A fluid-operable extendible and contractable lap belt 27 is also provided and controlled by the computer.
Patent GB-1485690-A (GB)
Title: Reversible magnetic recording disc unit
IPC: G11B23/033
Filed: 1975-10-31
Abstract: 1485690 Magnetic-recording disc cassettes INFORMATION TERMINALS CORP 31 Oct 1975 45418/75 Heading G5R A double-sided magnetic recording disc 12 is contained in a jacket 13 of which each face has a central opening 22, a radial slot 28 and two symmetrically located holes 38, 40. These give access to the disc 12 from either side for respectively a drive spindle, a magnetic head and an optical sensor which detects the passage of a hole 36 in the disc. The jacket 13 may have further symmetrically disposed holes or notches for the control of a recording function, Figs. 4 to 8 (not shown).
Patent GB-1180429-A (GB)
Title: Down-the-Hole Rock Drills
IPC: E21B4/14
Filed: 1967-10-06
Abstract: 1,180,429. Percussive drill. THOS. BARLOW & SONS Ltd. 6 Oct., 1967 [19 Oct., 1966], No. 45850/67. Heading B4C. [Also in Division E1] A down-the-hole drill comprises a cylinder 4 carrying a drill bit struck by a piston (not shown) reciprocating in the cylinder under the control of valve 5 supplied with actuating fluid via hollow mandrel 3 and ports 8. Some fluid is. by-passed to the bit via restricted ports 11 and passages 13, 15. When the string is raised, a lost-motion connection between mandrel 3 and housing 2 causes mandrel 3 to rise first until larger ports 12 are aligned with passages 13 whereby substantially all the fluid supplied is by-passed and the piston ceases to move. In a modification, the lower part of the mandrel is solid and fluid is by-passed from chamber 17 through passages (not shown) to passage 15 and, when raised, the mandrel connects chamber 17 to passages 13. Specification 946,677 is referred to.
Patent GB-1051321-A (GB)
Title: Fastening means for corrugated roofing sheets
IPC: E04D3/36
Filed: 1963-11-20
Abstract: 1,051,321. Washers; locking nuts; covers for nuts and screws; securing hook-headed bolts against loss. A. FISCHER. Nov. 20, 1963 [Dec. 18, 1962], No. 45877/63. Heading F2H.  Corrugated roofing sheets 1, 2 are secured by a nut 9 and hook-bolt 7, with a sealing washer 5 having at its outer end a recess 11 which can seat a spiral spring 10 if this is required between the washer and nut, i.e. when temperature changes or vibration are expected to be so great as to loosen the fastening if used without the spring. The washer 5 is of resilient synthetic plastics material and the lip of the recess 11 is constricted to retain the spring 10. An elastic outer cap 12 is held on by a flange 13 fitting in a groove 14 on the washer. A tongue 16 retains the bolt 17 from falling before the nut is attached.
Patent GB-1078478-A (GB)
Title: New 3-amino-a-nor-b-homo-steroids and process for their manufacture
IPC: C07J69/00
Filed: 1965-11-01
Abstract: Novel A-nor-B-homo-steroids of the formula <FORM:1078478/C2/1> and their salts (wherein R1 is hydrogen or methyl, R2 is an aliphatic hydrocarbon group of 8 to 10 carbon atoms; and Z is a substituted or unsubstituted amino group) are prepared by reacting a corresponding compound containing in the 3-position a reactive esterified hydroxyl group with ammonia or a primary or secondary amine or with a donor of such compounds, or by reducing corresponding compounds containing in the 3-position a group reducible to an amino group, and, if desired, substituting a resulting 3-amino group in known manner.  Substituents in the 3-amino group may be, in particular, alkyl, alkoxyalkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or aralkyl groups, or alkylene groups which may be interrupted by heteroatoms, thus forming a saturated, nitrogen-containing heterocyclic ring, e.g. pyrrolidino, piperidino, morpholino, thiamorpholino, piperazino, N-methyl-piperazino, or N-(b -hydroxyethyl)-piperazino, or acyl radicals.  R2 is, in particular, a 6-methyl-heptyl-(2), 5,6-dimethylheptyl-(2) or 5-ethyl-6-methyl-heptyl-(2) group or such a group containing a 3,4-double bond. The 3-substituent in the starting materials is preferably a halogen atom or a hydrocarbonsulphonyloxy group, or a hydroxyimino, nitro, nitroso, imino or tautomeric enamino, or an azido group.  Amino substituents may be introduced, for example, by reaction with a reactive ester of a suitable alcohol, or by reductive alkylation.  A-nor-B-homo-steroid starting materials containing a 3-reactive, esterified hydroxyl group are prepared by u.v. irradiation of a suitable 3-oxo-4,5-oxido-steroid, acylating the 3,6-dioxo-A-nor-B-homo-steroid formed (which is predominantly present in the enol form), and hydrogenating the resulting D 5-3-oxo-6-acyloxy-A-nor-B-homo-steroid. The resulting 6-unsubstituted 3-oxo-A-nor-B-homo-steroids are then reduced and esterified.  They may also be reacted with hydroxylamine or an amine to give 3-imino compounds.  The A-nor-B-homo-steroids of the invention, which are stated to be tuberculostatic and anti-tumour agents, may be added to feedstuffs or made up into preparations for pharmaceutical or veterinary use with suitable carriers.
Patent GB-1283997-A (GB)
Title: IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF SOLID SOLUTIONS OF Cd, S AND Se
Inventor: FRELLER HELMUT
IPC: C23C14/00
Filed: 1970-09-28
Abstract: 1283997 Vapour-depositing Cd, S, and Se SIEMENS A G 28 Sept 1970 46117/70 Heading C7F A layer of CdS x Se 1-x  where 0 <x < 1 is produced by vapourizing Cd, S, and Se from three separate crucibles at temperatures T 1 , T 2 , and T3 respectively and condensing them on a substrate having temperature T 4  in the range 120-400‹C. Variable composition of the solid solution throughout its thickness may be achieved by altering T 2  and/or T 3  while keeping T 1  and T 4  constant. The substrate may be glass or ceramic. A photoresist of constant sensitivity in the wavelength range 5,100 to 7,200 A may be produced by setting T 1  at 360‹C., T 4  at 200‹C., and raising T 2  from room temperature to 100‹C. over 15 minutes whilst lowering T 3  from 250‹C. to room temperature, whereby the composition of the layer varies from Cd Se adjacent the substrate through CdS x Se 1   -x  with various values of x to CdS at the surface.
Patent GB-1011551-A (GB)
Title: Improvements in or relating to 5-amino-1,5-diazacyclooctanes
Inventor: JUCKER ERNST
IPC: C07D/
Filed: 1961-12-27
Abstract: The invention comprises compounds of general formula <FORM:1011551/C2/1> in which R is alkyl (1-4 C), hydroxyalkyl (1-4 C) or aralkyl (7-10 C); and their acid addition salts; and their preparation by reduction by known methods of corresponding 5-nitroso compounds, themselves obtainable by nitrosylation by known methods of the 5-unsubstituted compounds.  N-R- 1,5-Diazacyclooctanes are obtainable by the reduction of quaternary compounds of general formula <FORM:1011551/C2/2> which result from the reaction of 1,2 -trimethylenepyrazolidine with compounds R-halogen or of a trimethylene dihalide with a compound RNHNH2.  N - Alkyl - N1 - (3 - sulphamyl - 4 - chlorobenzoyl - amino - 1,5 - diazacyclooctanes are said to be obtained from compounds I on reaction with an appropriate benzoyl halide.
Patent GB-1401251-A (GB)
Title: Method of fabricating or heat treating a continuous elongate components
IPC: B22F3/20
Filed: 1972-10-06
Abstract: 1401251 Sintering continuous materials NATIONAL-STANDARD CO 6 Oct 1972 [15 Oct 1971] 46221/72 Heading C7D [Also in Division B5] Continuous elongated material e.g. wire tubing or strip fabricated by reducing and sintering metal compound compacts or by sintering fine-size metal particle compacts, is drawn from the heated tube in which sintering and consequent shrinkage occurs, by feedrollers which are driven at a linear speed which is equivalent to the linear speed of the material after extrusion or other forming less an amount to compensate for the shrinkage, thus preventing buckling or fracture. In one embodiment, Fig. 2, an elongated component is formed in the die 16 of an extruder assembly 17 and then passes through tube 8 of a furnace 12 to feedrollers 33 and take-up reel 25, a reducing atmosphere may be passed from inlet 20 to outlet 22 so that the component is reduced and sintered by heaters 14; if no reduction is required, a protective atmosphere is provided to prevent ignition of fine particles, while the first heater stage evaporates any lubricant. If the compact has insufficient green strength to move down the tube under gravity, a starter bar or rod 35 may be utilized. In the case of the elongated component being formed of fine metal particles, the feedrolls are driven to keep the component under compression. In alternative embodiments, Figs. 4 and 5 (not shown), the furnace is upwardly inclined from the extruder die and passage of the component through the tube of the furnace is assisted by a conveyer belt which is driven at a predetermined speed. In further embodiments, the compacts are not necessarily extruded; thus, in Figs. 8 and 9 (not shown) a slurry of the material is deposited in a longitudinal groove of a conveyer belt, heated if necessary to set the material, and fed to the furnace.
Patent GB-1018747-A (GB)
Title: Aerofoil shaped blade for fluid flow machines
Inventor: MALLEY HARRY HARTLEY
IPC: F01D5/18
Filed: 1964-11-13
Abstract: 1,018,747. Gas turbine blades. ROLLSROYCE Ltd. Nov. 13, 1964, No. 46447/64. Heading F1T. An aerofoil-shaped blade, for use in a fluid flow machine, has a cooling fluid duct therein, at least a portion of the duct having a substantially constant cross-sectional area throughout its length, the ratio of peripheral length to cross-sectional area of any one crosssection of said portion having a different value from the same ratio taken at least one other cross-section of said portion. The ratio is designed to be greater in those parts of the blade requiring a greater cooling effect. In the gas turbine engine turbine blade 10 shown in Fig. 1, two ducts 11 and 12 extend from the root 13 to the tip 14 of the blade, are interconnected via space 15, and each has a substantially constant cross-sectional area throughout its length. The ratio changes abruptly adjacent the mid span of the blade so that it is greater adjacent the root 13 then adjacent the tip 14. Alternatively, it may be greater adjacent the tip than adjacent the root. The ratio may vary linearly along the span of the blade instead of changing abruptly adjacent the mid span thereof. The blade may initially be formed so that the cross-sectional shape of each duct is constant throughout its length, the blade being thereafter forged between tapered dies so that greater deformation occurs in the portion required to have the greater ratio.
Patent GB-1221906-A (GB)
Title: Amino-type curing agents for epoxy resins, and their preparation and use
Inventor: SHOKAL EDWARD CHARLES
IPC: C08G59/64
Filed: 1969-09-22
Abstract: 1,221,906. Curing epoxy resins. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 22 Sept., 1969 [23 Sept., 1968], No. 46517/69. Heading C3B. [Also in Division C2] Epoxy resins are cured by mixing and reacting therewith a compound of the formula where n is a number from 0 to 4 and R is a group -R<SP>1</SP>-C(CH 3 ) 2 -R<SP>1</SP>-, where R<SP>1</SP> is a para-connected unsubstituted six-membered carbocyclic ring. In examples the epoxy resins cured are the di- and polyglycidyl ethers of 2,2 - bis - (4 - hydroxyphenyl) propane and 2,2 - bis - (4 - hydroxycyclohexyl) propane, diglycidyl - hexahydrophthalate, -tetrahydrophthalate, -phthalate, -isophthalate, -adipate, -azelate, diglycidyl ether and triglycidylisocyanurate. In an example, 2,2-bis-(4-hydroxycyclohexyl) propane diglycidyl ether is prepared by hydrogenating the corresponding phenyl compound over a rhodium-on-carbon catalyst.
Patent GB-1387113-A (GB)
Title: Speed control system for grinding machines
IPC: B23Q15/10
Filed: 1971-03-30
Abstract: 1387113 Grinding CRANFIELD INSTITUTE OF TECHNOLOGY 29 March 1972 [30 March 1971] 46605/70 Heading B3D [Also in Division G3]  The surface speed of a cam profile workpiece under a grinding wheel is kept constant by altering the angular velocity of the workpiece. The instantaneous shortest distance between the centre of the workpiece and the axis of the grinding wheel is sensed and the rate of change of this distance derived to give two signals which can be used to provide a desired angular velocity signal which is then used in a retroactive system to adjust the speed of the workpiece. In the embodiment shown the camshaft is mounted on a pivot and its position relative to the grinding wheel (controlled by a master cam and follower arrangement), is sensed by a potentiometer 9 provided in the pivot. The potentiometer output is fed to differentiating circuit 19 whose output is combined in circuit 17 with the position signal to provide a signal representative of a desired grinding speed which is used in oscillator 20 to provide a pulse train with a repetition rate proportional to the input signal. The speed of rotation of the camshaft is measured by the optical arrangement of a disc 12 having a radial grating which co-operates with transducers 13 to produce from logic 14 a pulse train whose repetition rate represents the speed of cam shaft 3. The pulse trains are compared in counter 15 and the resulting signal used to control the speed of motor 10. The desired mean speed is set using the manually adjustable controller 18. A velocity transducer may be used to determine the velocity in space of the contact point and thus replace differentiating circuit 19. In the case where the grinding wheel position alters, this movement is used to provide the distance signal.
Patent GB-1450184-A (GB)
Title: Modular electrical circuit breakers
IPC: H01H9/34
Filed: 1973-10-05
Abstract: 1450184 Automatic circuit breakers AIRPAX ELECTRONICS Inc 5 Oct 1973 [16 Feb 1973] 46663/73 Heading H1N In a multi-module circuit breaker providing simultaneous automatic breaking of the circuit breaker apparatuses of all modules but allowing independent manual operation of the circuit breaker apparatus of an individual module, each module has a trip lever 86 which trips the circuit breaker apparatus of that module under overload current conditions and causes movement of a camming member 94 to displace a cam follower 48 connected to a rotatable bar 32 which carries at its end an interlock assembly engaging a corresponding bar in the adjacent module and causing this corresponding bar to move and displace the trip lever of the adjacent module tripping it, but the arrangement being such that when the handle for manual operation of a module is in the "off" position the camming member 95 is not able to displace the cam follower 48 but is adjacent a cut-away part in the cam follower. The circuit breakers are tripped electromagnetically and are provided with a mesh-screen 26 over vent channels near the fixed contact position to prevent flames from passing through these channels when arcing takes place.
Patent GB-1416106-A (GB)
Title: Method of vaporizing and combining a liquefied cryogenic  fluid stream with a gas stream
IPC: F17C7/04
Filed: 1973-10-09
Abstract: 1416106 Revaporizing liquefied gases BLACK SIVALLS & BRYSON Inc 9 Oct 1973 46993/73 Heading F4P A method of vaporizing and combining cryogenic liquid supplied from a reservoir 34 by a pump 38 with a gas stream 12, comprises separating the stream 12 into two parts, one part passing through conduit 14 where-.it is compressed at 16 before being heated in heater- 22 and then passing to a contactor apparatus 26 where the heated gas in line 24 is brought into direct heat-exchange with the cryogenic liquid in line 32, the mixture of the gas and vaporized liquid being recombined with line 12, and the compression at 16 being sufficient to ensure that the mixture is at a pressure which is not less than that at which the gas stream is divided. A fuel control valve assembly 42 senses the temperature of the mixture to regulate the fuel quantity in a feed-line 41 for heater 22. The contactor apparatus, Fig. 3, comprises an inlet 104 for the heated gas, a nozzle inlet 111 for the cryogenic liquid and a mixture outlet 116. Compressor 16 can be replaced by a blower 56 driven by a gas turbine 58, the exhaust gas of which are used to pre-heat the gas before it passes to the heater. Examples given for the gas and cryogenic liquid are natural gas and LNG. Part of the mixture can be recycled.
Patent GB-1061398-A (GB)
Title: Nuclear fuel cans
Inventor: EMLEY EDWARD FREDERICK
IPC: B32B15/01
Filed: 1964-11-19
Abstract: A magnesium alloy for use in making a nuclear fuel can (see Division G6) consists of, in percentage by weight: Al 0.25-3, Si 0.01-1, Mn 0-0.25, Be 0-0.1, Ca 0-0.4, Zn 0-3, and Mg.
Patent GB-1170264-A (GB)
Title: Wavefront Reconstruction.
IPC: G02B27/00
Filed: 1966-10-21
Abstract: 1,170,264. Holography. BATTELLE DEVELOPMENT CORP. Oct. 21, 1966 [Oct. 23, 1965], No.47312/66. Addition to 1,104,041. Heading G2C. A hologram 33<SP>1</SP>, Fig.1, is copied by illuminating it with a coherent beam 23<SP>1</SP> from laser 21 so that the photographic film 33<SP>11</SP> receives the first order diffracted beam therefrom and illuminating the film 33<SP>11</SP> with a second beam 31 of radiation which is coherent with the first beam. As shown the second beam 31 is derived from the laser 21 by means of reflectors 26, 28. A pair of lenses 38, 40, of equal focal length are positioned in the first order diffracted beam and each are spaced a distance equal to this focal length from a pinhole 41, which reduces the effect of aberration in lens 38. In a modification the lenses 38, 40, and pinhole 41 are omitted and the second beam 31 impinges directly on film 33<SP>11</SP> without reflection.