baber/WOPTO huggingface dataset:
Patent GB-905271-A (GB)
Title: Air-conditioning apparatus
IPC: F24F1/031
Filed: 1960-11-21
Abstract: 905,271. Ventilation FRALEIGH INDUSTRIES Ltd. Nov. 21, 1960 [Dec. 15, 1959], No. 39923/60. Class 137. Unit apparatus 4 for a room is formed as a composite article with a double-glazed window 2, the upper part of the apparatus forming the window-sill 6, and comprises inlets 31, 33 from the room and outside, a valve 16 for admitting air from one or both inlets and a fan 11 for forcing the air through a heater 41 to a room outlet 26. Preferably a cooler 42 is provided in parallel with heater 41, the heater or cooler being selected by a second valve 23. Alternatively they may be disposed in series in the air passage. The cooler is a refrigerant evaporator, the condenser 35 being located in the upper part of the unit to be cooled by air drawn thereover by a fan 32 through inlet 33 and exhausted to ambient through outlet 34, valve 16 being set to admit air only from the room through inlet 31 during air cooling. As shown in Fig. 3, inlets 33 and outlets 34 are provided in duplicate on the underside of projecting sill 6, and fans 32, also duplicated, circulate air therethrough and over the condensers 35 when cooling is being effected. Valve 16 is in such position as to block off the passage 15 and opening 74 leading from inlets 33 and fan 11 withdraws room air through inlet 31, passage 14 and filter 61 and forwards it through passage 13 and cooler 42 back to the room, valve 23 being set as shown. When the cooling apparatus is inoperative, fan 11 draws air either from passage 14 from the room or through opening 74 and passage 15 from ambient depending on the setting of valve 16 and forces it wholly or in part through heater 41 depending on the setting of valve 23. Preferably heater 41 is electric but it may be a heating coil supplied from a central plant. The refrigerating coil may be supplied from a local or central plant. Valves 16, 23 may be interconnected. As shown in Fig. 6, valve 16 comprises a segment of an arc 60 carried by end sector-plates 62 pivoted at 17 and moved by operation of hand lever 64 pivoted at 65 and connected to one of plates 62 by a pivoted link 67. The arc 60 carries sealing gaskets 63a, 63b. As shown in Fig. 7, valve 16 is a flap pivoted at 17 and having a pin-and-slot connection 79, 77 with operating lever 64. It carries a sealing gasket 78.
Patent GB-399419-A (GB)
IPC: C06F1/08
Abstract: 399,419. Filling match-boxes. BADISCHE MASCHINENFABRIK & EISENGIESSEREI VORM. G. SEBOLD UND SEBOLD & NEFF, 3, Seboldstrasse. Durlach, Baden, Germany. April 12, 1933, No. 10903. Convention date, July 14, 1932, [Class 94 (i).] Matches which are being arranged for filling into boxes are shaken longitudinally as well as transverselv to cause them to assume parallel positions. The matches m, which have been ejected by pins a from the carrier bars h of a match-making machine, fall into a series of cells formed by longitudinal walls e, f and cross-bars d. A slide c which is intermittently moved transversely to the length of the matches to cause the matches to settle, forms the bottoms of the cells. After each stroke by the ejection pins a, a cross-head g moves the cells to and fro perpendicularly to the bars a to shake and straighten the matches in their longitudinal dimensions. When the cells are full, the slide c opens to allow the matches to fall on to an inclined surface on a compartment chain i which conveys them to the packing apparatus.
Patent GB-1272403-A (GB)
Title: Improvements in or relating to airborne navigation aiding pulsed radars
Inventor: BOLLARD DAVID ROOKSBY
IPC: G01S7/292
Filed: 1968-08-21
Abstract: 1,272,403. Pulse radar. PYE Ltd. 15 Aug., 1969 [21 Aug., 1968], No. 40084/68. Heading H4D. In a pulse radar on an aircraft and utilizing a downwardly inclined beam, a derived voltage obtained from a video echo signal is applied to a store for successive short periods, an integrated difference voltage is produced by integrating the difference between the derived voltage and a voltage in the store when the derived voltage is the greater, each short period is initiated at a time relative to radar pulse transmission determined by the instantaneous magnitude of the integrated difference voltage, and the latter is utilized as an indication of range. Due to beam cross-section the echo signal from terrain ahead will be long relative to the transmitted pulse duration and accurate range measurement can be expected when the echo signal amplitude is at or near maximum, and range measurement at that point is achieved by the invention. In the embodiment the receiver has a third-power swept gain to reduce the effect of minor lobes of the transmitted beam. The echo video signal is fed to a pulse shaper 34 which produces a derived voltage which follows increasing parts of its input voltage and follows decreasing parts until the rate of decrease exceeds a predetermined rate, the shaped voltage then decreasing at the predetermined rate and the next following increasing part of the input voltage being followed if it exceeds the voltage to which the shaped voltage has decreased. The derived voltage is fed to a high-impedance comparator 36 also connected to a storage capacitor 42. The output of the comparator is fed to a switch 40 and when the switch is closed the derived voltage is so applied to capacitor 42 that the input voltages to the comparator are equal; but when switch 40 is open the voltage on capacitor 42 remains substantially constant. The differencevoltage output of comparator 36 is integrated via rectifier 48 in the combination 46, 47 and the integrated voltage is applied to a differential amplifier 52 the other input to which is a sawtooth voltage 56 at a fixed time relative to the transmitted radar pulse and repeated at the same repetition rate; the peak value of voltage 56 exceeds the integrated difference voltage and when they are equal switch 40 is closed briefly.
Patent GB-862415-A (GB)
Title: Pump unit with canned electric motor
IPC: F04D13/06
Filed: 1959-11-26
Abstract: 862,415. Pump motors. KRAEMER, H., and HERR, E. Nov. 26, 1959 [Dec. 1, 1958], No. 40126/59. Class 35. [Also in Group XXVI] In a pump motor the canned rotor 3 is mounted inside a stator bore sleeve 6 which sealed by welding, soldering &c., to the pump housing 9 and to a rear-end bearing cover 8 thus permitting axial withdrawal of the stator (as shown) without opening the liquid seal. The welds are circular and lip-like and may be turned off and rewelded during maintenance. Passages 23, 24 allow the pumped liquid to displace all the air within the sleeve 6 to prevent drying of the bearings. Also liquid passes from these passages, through the air-gap 25, possibly through longitudinal bores in the bearings, and back to the pump through hollow shaft 2. The joint between the pump inlet 20 and housing 9 is sealed by welding at 21 (see Group XXVI).
Patent GB-1485402-A (GB)
Title: Process for dyeing or printing cellulose-containing textile materials
IPC: C09B67/36
Filed: 1974-09-16
Abstract: 1485402 Dyeing or printing cellulose fibre materials HOECHST AG 16 Sept 1974 [15 Sept 1973] 40285/74 Heading D1B Textile materials comprising cellulose fibres are dyed or printed by padding the material with an aqueous solution containing a 2-hydroxy naphthalene-3-carboxylic acid phenylamide, an alkaline agent and an alkali metal nitrate and after an optional drying treatment subsequently cross-padding the material with an aqueous bath, or printing the material with a print paste, which contains a solution, dispersion or emulsion of a 4-amino-diphenyl amine having a maximum grain size of 0.03 mm in dispersion and an acidic agent at room temperature with formation of the azo dye on the fibres. The coupling component may be applied hot using sodium hydroxide and sodium nitrite. The acidic agents include formic acetic, glycolic, lactic gluconic, tartaric or citric acids, mono-sodium-dihydrogen phosphate, sodiumhydrogen sulphate or aluminium sulphate. The amine is applied in presence of an anionic, cationic or non-ionic dispersing agent. The dye formation may be promoted by elevated temperature and/or hot sodium carbonate solution. The process may be continuous.
Patent GB-1077164-A (GB)
Title: Improvements in weighing apparatus
Inventor: SCHELLENTRAGER EUGENE WILLIAM
IPC: G01G13/30
Filed: 1964-10-02
Abstract: 1,077,164. Gravity switches. ATLAS BOLT & SCREW CO. Oct. 2, 1964, No. 40338/64. Heading H2B. [Also in Division G1] In a weighing system, mercury switches (56-62) (Fig. 3, not shown) each associated with an actuating finger, e.g. 67, arranged on a weight indicator 42 each comprises a mercury capsule 63 arranged to be rocked to one of two positions by its associated actuating finger, small magnets 71, 72 being provided to attract magnetic strips 69, 70 in order to ensure that the capsule is rocked positively to either of its two positions.
Patent GB-1016261-A (GB)
Title: Improvements in or relating to retarding devices
Inventor: DEAN JOHN ROBERT
IPC: G21C7/20
Filed: 1961-11-10
Abstract: 1,016,261. Winches; tension regulating; end-stop gear. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 7, 1962 [Nov. 10, 1961], No. 40414/61. Heading B8B. [Also in Divisions F2 and G3] In a winch device for raising and lowering a weight 1, Fig. 1, such as the control rod of a nuclear reactor, in which the drive may be disconnected to allow the weight 1 to fall freely, the winch drum 2 is coupled to an inertia device for which the moment of inertia is increased towards the end of the fall to decelerate the motion. In the example in which the drum 2 is driven for raising the weight by an electric motor 7 through shafts 6, 4 coupled by a freewheel clutch 9, inertia weights 18 are attached to pivoted radial arms 17 on the shaft 6 which are forced radially outwardly towards the end of the fall. The shaft 4 is threaded at 4a and carries a nut 10 which is keyed at 10a against rotation and moves axially between fixed end stops 11 operating at the fully raised position and spring-loaded end stops 12 operating at the fully lowered position. Cam plates 20 engaging pins 19 on the inertia arms 17 are coupled to the nut 10 through a bearing sleeve 15 and carry arcuate slots 20 adapted to hold the inertia arms 17 radially inwards during a considerable part of the fall and to force them suddenly outwards at the end of the fall. The nut 10 moves a slider 13a across a potentiometer wire 13 coupled to a motor M for sensing the position of the weight.
Patent GB-1352538-A (GB)
Title: Broadband high efficiency thin film piezoelectric transducers
IPC: H03H9/125
Filed: 1971-08-31
Abstract: 1352538 Piezoelectric thin film transducers WESTINGHOUSE ELECTRIC CORP 31 Aug 1971 [10 Sept 1970] 40476/71 Heading H3U A microwave piezoelectric thin film transducer mounted on acoustic delay line material 10, Figs. 1, 3 and intended for direct connection to a transmission line without external impedance matching comprises a cadmium sulphide piezoelectric film 12 with a thinner dielectric silicon monoxide layer 13, sandwiched by electrodes 14, 16 with portions projecting beyond the boundaries of film 12, and interconnected via projections 16B, such that each pair of mutually opposed pairs of fingers 14A, 16A operate as a transducer element, adjacent elements being connected in series having the same polarization sense, Fig. 2 (not shown). Input impedance is thus raised, input capacitance being reduced. The layer 12 is vapour deposited, and may be homogeneous, or stratified, the strata having alternating polarities, and different tuned frequencies to achieve stagger tuning of the transducer. Manufacture.-The electrodes, of gold on chromium or gold on lithium niobate on chromium are vapour deposited, the electrodes adjacent the substrate 10 being deposited before the piezo layer 12, deposited via an apertured mask or by a subtractive method.
Patent GB-1087914-A (GB)
Title: Improvements relating to ethylene polymers
IPC: C09D123/30
Filed: 1964-10-05
Abstract: A normally solid oxidized ethylene polymer is produced by heating in the presence of oxygen to a temperature of at least 90 DEG  C. but below its crystalline melting point an ethylene polymer of the high density type having a positive melt index while it is in the solid state until its carbonyl group content is within the range 0.07-0.92 milliequivalents per gram of polymer but its carboxyl group content is less than 0.20 milliequivalents per gram of polymer, and its oxygen functionality index (defined) is above 0.03.  Conventional oxidation promoters may be employed.  The oxidation may be carried out in the general manner described in Specification 971,998.  The oxidized polymers may be used for paper coatings, components of floor and car polishes, printing inks, finishes for synthetic and natural fibres and textiles, as a bonding agent for metals, and as films that are wettable by customary printing inks.
Patent GB-1439830-A (GB)
Title: Film extruding head
IPC: B29C48/08
Filed: 1973-08-29
Abstract: 1439830 Extruding oriented film or sheet M E WALLIS 29 Aug 1973 [5 Sept 1972] 40698/73 Headings B5A and B5B A thermoplastics or thermosetting material flat film or sheet, 12<SP>1</SP>, Fig. 2, is biaxially oriented during extrusion from an extrusion outlet passage defined between parallel surfaces having downstream boundaries which, in their respective plans, have a central portion which is outwardly curved and merges at each end into a straight side portion, so that the film is biaxially oriented in expanding to a width greater than that of the outlet. The film may comprise thermosetting resins, or polyethylene, polyamide, ionomeric polymer, and ethylene/vinyl acetate co-polymer, and may be extruded vertically downward to envelop, wrap and seal, about articles sequentially conveyed beneath the outlet, Fig. 1 (not shown). The film may be intermittently extruded from the outlet passage 31, Fig. 6, by means of a valve 53 upstream thereof. In the described embodiment, the passage 31 is defined between parallel planar surfaces 38, 39, respectively provided in bolted together die members 16a, 16b, and comprising at their downstream ends a central part-circular portion 42, Fig. 7, and straight side portions 43, 44 extending tangentially therefrom at a preferred angle of 20 degrees at 35 degrees to the radial bisector of the portion 42. The material extrudes radially from portion 42, and perpendicular to portions 43, 44. The length, in the direction of extrusion, along which the surfaces 38, 39 are parallel to each other, may be greater along the curved portion 42, than along the straight portions 43, 44, so that more material is extruded from the straight portions to obtain a more even film thickness. The planar surface 39 in die member 16b may, as shown extend upstream to a shoulder 48 extending linearly between the lateral boundaries of the downstream end of passage 31 or alternatively, as in the die part 16a, may comprise a planar surface 38 bounded at its upsream end by the downstream boundary of a die chamber 17, which connects with a die inlet passage 18 for the plastics material. The chamber 17 is of a depth, Fig. 10, which decreases towards its boundary at the planar surface 38. The valve 53 comprises a cylinder 51 which is mounted to a stem 57 for roation, by an actuator (56), to bring a cylinder passage into and out of alignment with the die passage 19 respectively to permit and obturate flow of plastics to the chamber 17. Accumulation of material adjacent the orifice 31, is prevented by recessed die portions 73, 74 which reduce the area of die surface 36, 37. Each die part 16a, 16b is provided with a thermostatically controlled heater.
Patent GB-1357986-A (GB)
Title: Press for the manufacture of ceramic and refractory articles
Inventor: WALCHHUETTER U
IPC: B30B1/32
Filed: 1972-09-01
Abstract: 1357986 Compression moulding U WALCHHUTTER 1 Sept 1972 [2 Sept 1971 31 May 1972] 40704/72 Heading B5A A press for ceramic and refractory bricks and tiles comprises vertical columns 4 mounted between stationary crossheads 1, 5, an intermediate crosshead 6 sliding on the columns and carrying a mould part 7 which co-operates with a complementary mould part 3 on erosshead 1, a means for lowering the crosshead 6 to partly close the mould, and further means which follow the crosshead down and then form an abutment against which an hydraulic ram 21 mounted on the intermediate crosshead 6 reacts to effect a compression stroke. After removing previously moulded articles and refilling the mould cavities by means of a horizontally reciprocating carrier 53 (Fig. 2, not shown) the cross-head 6 is lowered by releasing pressure from rams 12 and pressurizing rams 16. The downward movement is limited by resistance of permanently pressurized low pressure rams 13 and by the moulding material which is precompressed thereby. In the embodiment of Fig. 1, an hydraulic motor 44 which is mounted via rollers 46 on supplementary crosshead 45 is operated to turn a spindle 42 threaded through the stationary crosshead 5 to lower the spindle until it contacts the piston 23 of ram 21. Low pressure. fluid is delivered to chamber 19 of ram 21 to effect a first compression step after which fluid is discharged from chamber 19 and fed to chamber 37 to collapse the ram 21 and permit the compressed material to expand and permit trapped air to escape. The spindle 42 is lowered further to re-engage the collapsed ram, whereupon high pressure fluid is delivered to the ram to effect a final compression stroke. After compression the spindle 42 is retracted and rams 12 pressurized to raise the crosshead 6 until it engages permanently pressurized low pressure rams 17. The rods of rams 13 and 17 are adjustable by screwed terminal members 14 and 18. In the embodiment of Fig. 8, a supplementary crosshead 56 is connected to the piston of ram 21, through a member 55 engaging a seat 54, so that the lowering of crosshead 6 by rams 16 is limited when the heads 59 of rods 58 carried by the supplementary crosshead reach the ends of chambers 60. The supplementary crosshead carries the lower part 63a of the device of Fig. 10, the upper half 64a being carried by a shaft 67 in the upper crosshead 5. The teeth of the device are intermeshed in Fig. 8, but become separated on lowering of the crosshead 6 whereupon the upper part 64a is rotated by a ram 71 connected to shaft 67 to align the teeth and prevent raising of the crosshead 6 when ram 21 is operated to effect compression.
Patent GB-979682-A (GB)
Title: Improvements in and relating to compact switching stations
Inventor: HILLYER CECIL ALFRED CHARLES
IPC: H02B1/24
Filed: 1962-10-29
Abstract: 979,682. Switchgear structures. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 29, 1963 [Oct. 29, 1962], No. 40825/62. Heading H2B. A polyphase switchgear has stationary feeder, busbar and earthing groups of airinsulated contacts F, B, E 1 , Eg and a horizontally traversable oil circuit-breaker CB which is vertically movable to interconnect two of said stationary groups by means of its plugging contact groups CO, CI, the plugging contacts CO1, CO2, CO3 of each group lying in a common plane perpendicular to the traversing direction and being mounted on terminal bushings which are splayed apart away from the housing EN of the circuitbreaker.
Patent GB-903616-A (GB)
Title: Mineral fibre reinforcement treated with binder
IPC: C08L67/06
Filed: 1960-11-30
Abstract: 903,616. Agglutinated fibrous materials. AACHEN-GERRESHEIMER TEXTILGLAS G.m.b.H. Nov. 30, 1960 [Dec. 11, 1959], No. 41125/60. Class 140. A mineral fibre reinforcement treated with binder and serving as a reinforcement for shaped transparent bodies of artificial resin contains a composite binder comprising a large proportion or organic constituents easily soluble in the resin and a small proportion of inorganic constituents insoluble or only slightly soluble in the resin. Suitable organic constituents are those of the non-saturated polyester type, simply linked derivatives of acrylic or methacrylic acid, possibly copolymerized with copolymers, for example styrene, esters of methacrylic acid, compounds based on chromo-methacrylic chloride or trichloro-silane vinyl or ethoxysilane vinyl and their derivatives or esters of phthalic acid or esters of adipic acid. A suitable inorganic constituent is colloidal silica. A suitable resin for the transparent body is a polyester based on maleic acid anhydride and propylene glycol. The organic and inorganic constituents may be added simultaneously or separately to the layer or mat of fibres which latter may be subjected during and/or after the addition to a drying and/or heat treatment. A shaped body (e.g. a plate) may then be formed by subjecting the mat, prepared as above, together with the transparent resin, to heat and pressure.
Patent GB-1520927-A (GB)
Title: Differentially bonded nonwovens
IPC: D04H3/03
Filed: 1975-10-09
Abstract: 1520927 Differentially autogeneously bonded non-woven tufted fabrics LUTRAVIL SPINNVLIES ZWEIGNIERDERLASSUNG DER FREUDENBERG & CO 9 Oct 1975 [10 Oct 1974] 41368/75 Headings D1K and D1R A spun bonded non-woven web of continuous system (matrix) polyester filaments and [copolyester] binder filaments is of equal strength in the longitudinal and transverse directions but the number and size of the autogeneous bonds vary through the thickness from the strongly bonded to the weakly bonded side. The web has a weight/unit area of 100 to 150 g/m<SP>2</SP>, a ratio A='the breaking load of a 5cm wide strip in g/wt. per unit area of at least 130 and, after the web has been tufted with a crimped continuous filament polyamide yarn of total gauge 2700 dtex, the needle spacing being 0.397cm and the punching density 0.32, the ratio B=the breaking load of a 5cm wide strip in g, measured along the tufting rows/wt. per unit area is not less than 140 and # 0.9A and the ratio C, measured on a 5cm wide strip cut transversely to the tufting rows is not less than 120 and #0.8A. Preferably the flexural strength measured from the soft side is at least 1.5 times that measured from the hard side and if the web is split into 2 layers of equal thickness the flexural strength of the more firmly bonded layer is at least 1.5 times that of the other layer and its tensile strength is at least twice that of the other layer. The web may be formed by air laying onto a travelling foraminous belt to which suction is applied. Polyethylene terephthalate is extruded through spinneret holes arranged in rows at a throughput of 4 to 7 g/min and an ethylene phthalate/adipate copolymer of m.p. 160-230 is extruded to form binder filaments, there being 1.5 to 2.5 system filaments to binder filaments. The filaments are cooled in an air blast drawn and mixed by air flow in draw off channels and deposited on the belt by a transversely reciprocating means. Differential bonding may be facilitated by increasing the number of binder filaments in one layer of the web either by increasing the amount of binder polymer or by decreasing the diameter of the binder filaments. Preferably however a differential heat treatment is used. The web is pre-bonded by a calender in which the upper roll is at 80 to 120C and the lower roll is at 90 to 130C and at least 10C hotter than the upper roll. The upper side of the web is then sprayed with an aqueous dispersion of hydroxymethylpolysiloxane and 0.15g of dimethylpolysiloxane. The upper lubricant sprayed side is then pressed against a perforated drum at 160 to 230C by a travelling perforated belt and air or steam passed from the drum through the web so as to bond the web whilst its longitudinal and transverse dimensions are held constant. The lubricant sprayed side is softer (less strongly bonded). The web is tufted from the soft side. The yarn loops are then bonded by 800 g/m<SP>2</SP> solids of a pre-coating of a latex dispersion applied by 2 slop pads. Then a 4mm thick latex foam is applied to the back and the coating vulcanised.