baber/WOPTO huggingface dataset:
Patent GB-1287781-A (GB)
Title: Process for the manufacture of polyurethane foams
IPC: C08L83/10
Filed: 1969-09-08
Abstract: 1287781 Polyurethane foams INTER - POLYMER RESEARCH CORP 8 Sept 1969 [11 Oct 1968] 44262/69 Headings C3C C3R and C3T [Also in Division C2] Flexible polyurethane foams having good humid ageing properties are prepared by reacting together a liquid polyester containing from 10 to 72% by weight of the epsilon-oxycaproyl unit [-O(CH 2 ) 5 CO-], at least one organic polyisocyanate, at least one blowing agent, at least one catalyst and at least one surfactant comprising a water-soluble or partially watersoluble polysiloxane-polyester block copolymer. Suitable liquid polyesters are prepared by reacting epsilon-caprolactone, 6-hydroxycaproic acid or an oligomer thereof with a dicarboxylic acid (e.g. adipic, succinic, glutaric, pimelic, azelaic or sebacic acid) or an anhydride thereof, an alkylene glycol (e.g. ethylene, propylene, diethylene, dipropylene, 1,3-butylene or neopentylene glycol) and a triol or tetrol branching agent (e.g. glycerol, 1,2,6-hexanetriol, trimethylolpropane, pentaerythritol or alphamethylglucoside) at temperatures of from 100‹ to 300‹ C. in presence of a polyesterification or ester interchange catalyst. Examples 3 to 10 describe the detailed preparation of suitable liquid polyesters. Suitable polyisocyanates are 2,4- and 2,6-toluene diisocyanates and mixtures thereof, diphenylmethane diisocyanates and mixtures thereof with their corresponding carbodiimide derivatives, and polymeric isocyanates of aniline/formaldehyde or orthotoluidine/formaldehyde condensation products. Suitable blowing agents are water, or mixtures thereof with halogenated aliphatic hydrocarbons or low boiling hydrocarbons. Exemplified catalysts are triethylenediamine, N-ethylmorpholine, N,N - dimethylhexadecylamine and N,N-dimethylbenzylamine. Suitable surfactants are prepared in Examples 12 to 15 and are: (12) a compound of the formula prepared by reacting CH 3 OCO(CH 2 ) 5 OCH 2 CH 2 OCH 2 CH 2 OCH 2 CH 2 OH with a methylhydrogen polysiloxane obtained by cohydrolysis from 8 molar proportions of methyldichlorosilane and 2 molar proportions of trimethylchlorosilane; (13) a compound of the formula  prepared by reacting CH 2  : CHCH 2 OCO(CH 2 ) 5 (OCH 2 CH 2 ) 4 O.COCH 3  with a methylhydrogen polysiloxane as in (12); (14) a compound of the formula prepared by reacting a hydroxy-terminated polyester obtained from 1 mol. of 2-ethylhexanol, 5À5 mols. of tetraethylene-oxyglycol and 5À5 mols. of adipic acid, and a methylhydrogen polysiloxane obtained by cohydrolysis of 3 molar proportions of methyldichlorosilane, 15 molar proportions of dimethylchlorosilane and 2 molar proportions of trimethylchlorosilane ; and (15) a compound of the formula  prepared by reacting a hydroxy-terminated polyester obtained from 1 mol. of 2-ethylhexanol, 2 mols. of epsilon-caprolactone and 8 mols. of ethylene oxide, and a methylhydrogen polysiloxane obtained by cohydrolysis of 3 molar proportions of methyldichlorosilane, 2 molar proportions of trimethylchlorosilane and 5 molar proportions of dimethylchlorosilane.
Patent GB-1372128-A (GB)
Title: Method and arrangement for checking the alignment of a paper sheet in paper sheet feed apparatus
IPC: B65H5/10
Filed: 1972-09-25
Abstract: 1372128 Feeding sheets AB PRINTING EQUIPMENT 25 Sept 1972 [5 Oct 1971] 44275/72 Heading B8R Sheets 2 fed over a feed table 1 to a pivoted front register stop 12 are first engaged by a retarding hook member 3 which follows a path 10 so as to take the sheet up to the stop and then return below the table into position to receive the next sheet. The member 3 carries a photoelectric detector 5 having a lamp 7 and light receiver 6. When a sheet is correctly positioned in the member 3, it reflects light to the receiver 6 to produce a signal which allows normal opera. tion to continue. If a sheet is not correctly positioned, the light is reflected by the surface 9 of an aperture 8 in the member 3 away from the receiver 6, so that in the event of misalignment, feeding of a sheet over the member 3, failure to feed, or displacement of a sheet during its passage within the member 3 to the stop 12, failure of the signal stops the sheet feed, trips the cylinder of the processing-machine and stops the machine.
Patent GB-1059345-A (GB)
Title: Improvements in or relating to incinerators
IPC: F23G5/16
Filed: 1962-11-22
Abstract: 1,059,345. Incinerators. K. R. MORTON. Nov. 22, 1963 [Nov. 22, 1962], No. 44286/62. Headings F4B and F4W. An incinerator comprises a secondary smoke combustion chamber 2, having an oil or gas burner 14, arranged to one side and above a main combustion chamber 1 which is provided with a fan 8 delivering primary and secondary air below and above a grate 6 respectively, additional primary air being supplied beneath the grate through apertures in the front of an ashpan which are regulated by a sliding plate 7. The flow of fan-supplied primary and secondary air is controlled by dampers 9 and 12, respectively, the secondary air being circulated between the refractory body and steel casing of the incinerator prior to being delivered preheated by ports 11 disposed in the upper region of the main chamber. A charging door 10, grate access door 13 and an ashpan 14 are provided in one side of the main chamber and a grit hopper 5 is disposed beneath the secondary chamber. The exhaust gases leaving the secondary chamber are mixed with cooling air entering the ports 15 before flowing through a duct 20 to a cylindrical casing 19 of a grit catcher 16. Said casing: houses a vertically mounted impeller .17 connected by a flexible coupling 24 to an electric motor 18 sealed at 25 and positioned between links 22 of the casing which is divided downstream of the impeller and which terminates in a chimney connection of an annular duct 22. Smoke particles precipitated on the casing fall through a grit trap 21 which may be connected to the hopper 5. Heat exchangers may be incorporated in the incinerator or chimney.
Patent GB-1409909-A (GB)
Title: Apparatus for measuring and recording a distance travelled
IPC: G01B3/12
Filed: 1972-09-26
Abstract: 1409909 Distance measuring; wear compensation FRANZ PLASSER BAHNBAUMASCHINEN INDUSTRIE GmbH 26 Sept 1972 [4 Oct 1971] 44332/72 Heading G1N In apparatus for measuring and indicating railway track parameters, wear of the distance measuring wheel is compensated using a signal from an inductive element arranged above the wheel tyre and a fixed distance from the wheel axis.  As shown, a rotary encoder attached to wheel 26 produces displacement pulses which are fed to counter 30 Inductive element 27 generates a signal proportional to the separation A between the element and the wheel tyre and this signal is converted and amplified at 29 to a signal representing the wheel circumference. The circumference signal and the counter contents are fed to multiplying digital to analogue converter 31 which has an output proportional to the product of the signals. This product is compared at 32 with a reference which comprises the product of the circumference signal with an unworn wheel and the number of pulses generated by one wheel rotation. At equality, an output signal on line 36 resets counter 30 and either directly or after division enters a distance marking on to chart recorder 13, which is driven by a stepping motor supplied with wheel rotation pulses. In an alternative embodiment, using a chart with a fixed scale, the pulses from comparator 32 may drive the chart stepping motor.
Patent GB-1088167-A (GB)
Title: Thermostatic control device
IPC: G05D23/02
Filed: 1964-11-02
Abstract: 1,088,167. Thermal switches. ROBERTSHAW CONTROLS CO. Nov. 2, 1964 [Dec. 9, 1963], No. 44553/64. Heading H2B. [Also in Divisions F2 and G1] A temperature responsive device for actuating two components, e.g. a valve 24 and a switch 120, comprises a cylinder 140, e.g. of a plastics material, rubber, or microcrystalline wax enclosed by an annular sealing piston, differential expansion between the cylinder 140 and tube 30 actuating the switch 120. The cylinder 140 bears directly on the movable contact arm 122 of the switch. The switch 120 is arranged in circuit with a solenoid and a thermocouple, the hot junction of which is disposed in a pilot flame for a burner. The current provided by the thermocouple energizes the solenoid if the pilot is alight and the switch 120 closed. An elastomeric skirt 134 surrounds the movable contact and extends over the fixed contact of the switch 120. The switch contacts are preferably gold plated.
Patent GB-1310656-A (GB)
Title: Process for the manufacture of peptides
IPC: C07C233/09
Filed: 1971-09-24
Abstract: 1310656 Peptide process F HOFFMANNLA ROCHE & CO AG 24 Sept 1971 [26 Sept 1970] 44701/71 Heading C2C [Also in Division C3] In a peptide process an amino acid which is linked via an ester or amide bond to a polymer which is soluble in water and/or an organic solvent is stepwise coupled in a homogeneous phase with further amino acids and the polymer removed from the peptide. Polymers have mol. wts. of up to 100,000 and are preferably polyethylene glycol optionally esterified with citric acid or a copolymerizate of vinyl pyrrolidone and acrylic acid #-hydroxyethylacrylate or of acrylamide and vinyl acetate in which the ester groups are partially saponified at least, or a copolymerizate of polyethylene glycol and succinic acid. In the process lower molecular coupling reagents are removed by dialysis, membrane filtration, column chromatography or countercurrent distribution and the polymer is removed from the peptide by treatment with dilute alkali hydroxide. Maleic acid di-(p-nitrophenyl) ester is prepared from the acid and phenol in the presence of dicyclohexylcarbodiimide and then with HI to give mono iodo succinic acid di-(p-nitrophenyl) ester.
Patent GB-1041577-A (GB)
Title: Atomic beam apparatus
IPC: H01S1/00
Filed: 1963-10-11
Abstract: 1,041,577. Molecular beams. VARIAN ASSOCIATES. Oct. 11, 1963 [Oct. 29, 1962], No. 45545/65. Divided out of 1,041,576. Heading G6P. The description is identical with that of the parent case 1,041,576, but the claims are directed to the heat-beam source.
Patent GB-1073211-A (GB)
Title: Improvements in or relating to vehicle crews training devices
Inventor: RUTHERFORD STUART HENRY
IPC: G09B9/05
Filed: 1962-12-05
Abstract: 1,073,211. Training drivers. GENERAL PRECISION SYSTEMS Ltd. Dec. 5, 1963 [Dec. 5, 1962; March 20, 1963], Nos. 45996/62 and 11136/63. Heading B7H. [Also in Division G2] In apparatus for training drivers of railway and other externally guided vehicles, an external scene is visually simulated by a cine film projector system the speed of which is controlled by the trainee's operation of simulated controls 102, and signal light images, whose colours are changeable by an instructor, are provided by auxiliary cine equipment operating in synchronism with the external scene projector. The projector preferably operates on the shutterless steady motion principle using a rotating prism to avoid flickering at low speeds and the controls may operate through a computer system simulating the dynamic behaviour of the motors and running gear and the effect of gradients and other track conditions. In Fig. 1 projector 105 provides a simulated external scene on screen 104 with trackside colour signals blacked out and synchronized projector 108 projects the signal colour. A single film strip 109 (Fig. 2, not shown) passes through both projectors and has two films (111), (112) printed on it with corresponding frames A, A<SP>1</SP> displaced by the length of film between the projectors. The film (112) is opaque apart from a hole or transparent spot representing the signal light and the colour of the signal light is provided by a three-position red/amber/green filter in a projector 108 remotely controlled by an instructor. In an alternative system (Fig. 1A, not shown), the frames of film (112) provide information in analogue or digital form which is projected on to a decoding device (113) to control a movable spotlight (114) which provides the track signal representation. The projector contains an adjustable iris (118) and, if necessary, a " zoom " lens for varying the signal size on the screen (104). In an alternative (Fig. 3, not shown) the decoding device (113) controls a shadowgraph device comprising a light source (119) conjugate with the trainee's eye position (103), behind screen (104) and an apertured plate (120) with a controllable coloured filter is movable laterally and vertically and, for varying the signal size, towards and away from the screen. The track scene is optically superimposed on a semi-reflecting mirror (122). A plurality of signal lights may be provided by additional projectors 108 or spotlights (114) or by additional holes in the shadowgraph plate (120) each with a multicolour and an opaque filter.
Patent GB-460563-A (GB)
Abstract: 460,563. Cam mechanism. ZEISS, C. Aug. 24, 1936, No. 23178. Convention date, Sept. 12, 1935. [Class 80 (iii)] [Also in Group XIX] Relates to a multiplication gear of the kind in which a cam a displaces a contact lever s radially to an extent determined by the profile of the cam in radial and axial planes respectively. The contact lever is rotatable about both an axis parallel and an axis at right-angles to the axis of rotation of the cam. In the form shown, the cam a is rotated by worm gearing e, f, from a shaft g. An axle h mounted in bearings i is adapted to be rotated through worm gearing k, m, from a shaft l. On the axle h is rotatably mounted a bracket n connected with a toothed wheel o. A worm r on axle h actuates a sector q to which the contact lever s is secured. Contact between lever and cam is ensured by a spring bearing on the underside of the bracket. Rotation of shaft g rotates the cam, and rotation of shaft l determines the part of the cam which acts upon lever sand the product sought is given by the wheel o.
Patent GB-1508270-A (GB)
Title: Method of and apparatus for drying manure or mud or the like
IPC: C02F11/13
Filed: 1976-11-05
Abstract: 1508270 Drying manure or mud W VAN DEN BROEKS MACHINEFABRIEK BV 5 Nov 1976 [11 Nov 1975] 46169/76 Heading F4G In a method of drying manure or mud which comprises passing the mud through a dewatering device, e.g. a screw conveyer, then through a thermal drier, e.g. a rotary drum through which hot gases from a burner are passed, and recycling a portion of the dried material to a location where it is mixed with material which has been dewatered, a crusher is included in the recycle line, to reduce the size of the recycled granules. The drum may contain baffles to force the hot gases into a zig-zag path, see Fig. 2 (not shown). It is stated that the degree of crushing and/or the proportion of mud recycled may be adjusted.
Patent GB-1482630-A (GB)
Title: Electric circuit breakers
IPC: H01H71/16
Filed: 1974-09-05
Abstract: 1482630 Automatic circuit breakers DORMAN SMITH SWITCHGEAR Ltd 5 Sept 1974 [4 Oct 1973] 46294/73 Heading H1N In an electric circuit breaker having a tripping mechanism operated on overload by deflection of a bimetal strip 21, the bimetal strip is supported on a mounting assembly together with a heating element, which may be a conductor 31 carrying all or part of the current through the circuit breaker or the secondary 36 of a current transformer, which mounting assembly includes a pair of brackets 29, 30, aligned to provide a planar support to which the bimetal strip is secured the bimetal strip being fastened to both brackets with the heating element sandwiched between the bimetal strip and the two brackets. The brackets 29, 30 are substantially L-shaped and have uprights parallel to one another and lateral limbs providing the planar support. The secondary of the current transformer may be a single turn 36 around a magnetic material core through which passes a conductor 39 carrying the current through the circuit breaker and forming the transformer primary. The transformer core comprises a U-piece 40 and a bridging piece 37 of stainless steel, slots 45, 46 being provided in the core for mutual adjustment. Deflection of the bimetal strip deflects a trip bar 10 which links all poles of the circuit breaker.
Patent GB-1284924-A (GB)
Title: Thread brakes
IPC: D03D47/34
Filed: 1969-09-19
Abstract: 1284924 Weft thread brakes; shuttleless looms SULZER BROS Ltd 19 Sept 1969 [23 Oct 1968] 46355/69 Heading D1E A thread brake is made up of two cooperating elements 2 and 3a, b or c, element 2 being resiliently deformed by element 3a, b, c and comprising a layer of resilient material 12 with a flexible overlay 11 whose surface has greater wear resistance to the passage of the thread than the resilient layer. As shown an e.g. polyether underlay 12 is placed in a channel shaped beam 4 which is adjustably mounted in a yoke 1 mounted on the loom and eyes 14, 14' at its ends which guide the yarn. The overlay is e.g. of hardened steel and has openings through which pins 9, 9' secured in beam 4 project. The brake elements 3a to c are secured on a common shaft 18 and can be adjusted so that their braking surface, which have an abrasion resistant surface e.g. of aluminium oxide, are at different distances from overlay 11. Shaft 18 is carried in bearings in yoke 1 and one end extends beyond the yoke and carries a loosely pivotable lever 21 secured to it by a catch. Lever 21 is connected by connecting rod 28 slidable in guide member 29 to an adjustable pivoted follower lever 33 carrying a roller 36 which engages a cam 37 splined on a shaft 38 driven from the loom. In operation, the yarn, which passes from eye 14 to eye 14 between pins 9, 9' is controlled by cam 37 so that it is released when it is to be picked into a shed and held by elements 3a-c against element 2 when picking is completed. In a modification, Fig. 5 (not shown) element (3') is stationary but adjustable and element (2') is carried on pivoted levers controlled by a spring on electromagnet. In a modification, overlay 11 e.g. of unhardened steel, light metal, titanium or plastics is loose and has a lining of hard chromium or the like or of cemented metal carbide or aluminium oxide.
Patent GB-1437329-A (GB)
Title: Shoes and methods of manufacturing shoes
IPC: A43D11/00
Filed: 1972-10-07
Abstract: 1437329 Boots &c G B BRITTON & SONS Ltd 6 July 1973 [7 Oct 1972] 46371/72 Heading A3B  An element for incorporation in the waist of the sole of string-lasted footwear has, at opposite edges, upstanding projections to retain the string in the margin of the upper. In one embodiment (Fig. 1(a), not shown) the element is a metal plate substantially trapezium-shaped but slightly waisted and having on each side lugs bent out of the plane of the plate. In another embodiment (Fig. 3), a plastics, plate-like shank portion 3 is integral with a heel block 4, the sides of shank 3 having lugs 5 projecting outwardly to form hooks. In a further embodiment (Fig. 1(c), not shown) the element is made of plastics has a shank (6) and a heel block (7) with lugs or pegs (8) projecting from near the curved sides of the shank. A metal stiffener (9) may be provided. In manufacture, a plain last 10 is used and an insole may be placed upon it before the upper. The element may be placed on the last before or after the string is pulled and after the string has been pulled it is prised out from the stitched hem at the waist and hooked over the lugs 5. The folded-in margin of the upper around the heel fits in a cut away portion 11. The upper and last is then placed in a moulding machine for forming the outsole and remainder of the heel. The element may be a perforated plate or a wire frame. The lugs may have ratchet formations so that the string can be progressively brought toward the centre-line of the shoe.
Patent GB-1405954-A (GB)
Title: Processes for the production of seasoned or flavoured sea-foods
IPC: A23L17/50
Filed: 1972-10-09
Abstract: 1405954 Squid product OSHIO SURUME KK 9 Oct 1972 46491/72 Heading A2B Legs of surume (dried squid) are contacted with a solution of a swelling-softening agent and a seasoning or flavouring agent, roasted, rolled to soften the legs without substantial loss of shape, and contacted with a seasoning or flavouring agent, which adheres thereto. The product may be vacuum packed and heat sterilised.
Patent GB-1493829-A (GB)
Title: Semiconductors
IPC: H01L21/761
Filed: 1974-10-28
Abstract: 1493829 Integrated circuits GENERAL ELECTRIC CO 28 Oct 1974 [30 Oct 1973] 46554/74 Heading H1K [Also in Division B1] An isolation grid of recrystallized regions 20, 22 surrounding discrete component-containing islands 24 in an integrated circuit structure is formed by temperature-gradient-thermomigration of elongate molten strips comprising a solution of the semiconductor material and a metal initially deposited, preferably in etched grooves, on a major surface of the semiconductor body. For an N-type Si body the metal is A1, other semiconductors mentioned being SiC and Ge. Preferred crystallographic orientations and dimensions are disclosed. The isolating PN junctions so formed are abrupt, but they may be linearly graded by a subsequent heating step.
Patent GB-1116755-A (GB)
Title: Folding easel
Inventor: HOWELL DAVID S
IPC: A47B97/08
Filed: 1966-10-24
Abstract: 1,116,755. Easels. ARLINGTON ALUMINUM CO. 24 Oct., 1966 No. 47525/66. Heading A4W. An easel comprises a panel 12 adapted to be supported by a leg unit 16 adapted to fold into a plane and to swing from an operative position to a position lying against the back of the panel 12. The leg unit comprises an inner U-shaped leg 22 pivoted by two devices 24 to an outer U-shaped leg 20, the cross member (28) of which is hinged at 30 to the lower edge of the panel. The panel is held in operative position by two spring urged brackets 18 hinged to the back of the panel and having T headed pins 44 which releasably engage in holes in the cross member (34) of the inner leg 22. A paper pad is secured to the panel by a holder comprising a leaf 74 which is pivoted to the top of the panel and which is pressed against the top of the pad by a thumb screw 80. The latter passes through a notch in the leaf 74, and a slide bar 82 slides into or out from under the head of the screw.
Patent GB-1440846-A (GB)
Title: Efficiency light emitting diode
IPC: H01S5/10
Filed: 1974-11-04
Abstract: 1440846 Electroluminescence RCA CORPORATION 4 Nov 1974 [12 Nov 1973] 47659/74 Heading C4S [Also in Division H1] Spaced heterojunctions 20, 22 of a double heterojunction semiconductor light-emitting diode 10 mutually diverge towards the lightemergent surface 18 so that the proportion of generated light striking the junctions 20, 22 at less than the critical angle # c  for total internal reflection is greater than in conventional paralleljunction LEDs, resulting in greater efficiency of light emission. The junctions 20, 22 may be as shown, or one of them may be normal to the surface 18. The device shown comprises respectively p and n type regions 12 and 16 of Al x Ga 1-x As separated by a region 14 of of p or n type or comprising portions of each type. The condition x>y is satisfied so that the energy gap of regions 12 and 16 is greater than that of region 14, resulting in a higher refractive index in the region 14. The successive layers may be deposited by liquid phase epitaxy following polishing of the substrate material to the desired angle.