baber/WOPTO huggingface dataset:
Patent GB-1373309-A (GB)
Title: Pneumatic ratemeter and counter
IPC: G06D1/00
Filed: 1972-11-22
Abstract: 1373309 Fluid regulation DRESSER INDUSTRIES Inc 22 Nov 1972 [29 Dec 1971] 54055/72 Heading G3H In apparatus for measuring the total number of air pulses and the instantaneous frequency of the pulses, e.g. air pulses generated by a reciprocating oil-well pump 17, Fig.1, the reciprocating shaft 16 of the pump actuates a valve 15 to alternately charge and discharge a tank 19 with air delivered from source 10, the consequent pulsating discharge acting via line 21 to control NOR gates 25, 26 which deliver a pulsating output through line 35 to a solenoid 33 of amplifier 34 which, in turn, produces amplified pulses for delivery through line 38 to actuate counter 40 and to junction 39, Figs.1 and 2. The pulses at junction 39 are used to reciprocate a valve 59 controlling delivery of regulated air-pulses from a flowrater 65 into a tank 61 and the discharge therefrom through a booster relay 68 to an indicator. Moreover, the pulses at junction 39 reciprocate a valve 42 controlling charging and discharge of tank 46, the resulting pulsating discharge being delivered to a pilot valve 49 via line 50 having a slow bleed 51, to cause reciprocation of dump valve 55 which dumps the contents of tank 61 to atmosphere immediately after the tank has been communicated with the indicator 70. Thus the pressure build up in the tank 61 is dependent on the time between the pulses at 39, so that the reading at 70 is indicative of the frequency of the pulses. The tank 61 may instead be arranged so that the pressure therein decreases between pulses. The flowrater may comprise a circular disc (83), Fig.3 (not shown), having an opening (84) therethrough at its periphery and rotated at constant speed by pneumatic motor (81) between the jaws of a pair of diametrically opposite air switches (85, 86) to induce in the outlets of the switches pulsating flows which actuate respective valves (91, 94) inter-connected via a tank (97) and producing the regulated air-pulses in a single outlet line (99).
Patent GB-1098580-A (GB)
Title: Paper coating process and product
IPC: D21H19/38
Filed: 1965-12-21
Abstract: A coated paper is produced by applying to a paper base sheet, e.g. rough, soaky and mottled paper rawstock at the wet end of a paper machine, as a base coat, an aqueous pigmented coating composition containing adhesive and pigment having an average spherical size not substantially smaller than 2 microns average spherical diameter.  The coating composition may contain at least about 15% by wt. pigments having a particle size in excess of 2 microns average spherical diameter.  The coated paper may then be dried and a second coating composition comprising essentially adhesive and pigment having an average particle size less than 2 microns average spherical diameter applied thereto, followed by drying.  The coating may be applied by passing the paper base through a blade or roll coating means.  The coating compositions may include coarse and fine pigments with the coarse pigments, having a particle size of 2 microns and greater average spherical diameter, comprising at least about 15% by wt. of the total dry solids content of the composition.  Coarse pigments specified are calcium carbonate, magnesium hydroxide, clays, solka floc, ground polyethylene and dry starch.  The adhesive may be a butadiene-styrene latex, starch and soya protein.ALSO:A coated paper is produced by applying to a paper base sheet as a base coat, an aqueous pigmented coating composition containing adhesive and pigment having an average spherical size not substantially smaller than 2 microns average spherical diameter. The coating composition may contain at least about 15% by wt. pigments having a particle size in excess of 2 microns average spherical diameter.  The coated paper may then be dried and a second coating composition comprising essentially adhesive and pigment having an average particle size less than 2 microns average spherical diameter applied thereto, followed by drying. The coating may be applied by passing the paper base through a blade or roll coating means.  The coating compositions may include coarse and fine pigments with the coarse pigments, having a particle size of 2 microns and greater average spherical diameter, comprising at least about 15% by wt. of the total dry solids content of the composition.  Coarse pigments specified are calcium carbonate, magnesium hydroxide, clays, solka floc, ground polyethylene and dry starch.  The adhesive may be a butadiene-styrene latex, starch and soya protein.
Patent GB-1287228-A (GB)
Title: Improvements in speed regulating systems
Inventor: MATLEY JOSEPH BRIAN
IPC: G05B11/36
Filed: 1970-11-13
Abstract: 1287228 Automatic control of speed AMPEX CORP 13 Nov 1970 [14 Nov 1969] 54194/70 Heading G3R A speed regulating system comprises means 9 for producing tachometer pulses indicative of the instantaneous angular position of a member 5, e.g. a video tape capstan or head wheel, which are compared with reference pulses 7, e.g. from a television signal, to provide a signal whose mean value represents the phase error of the member, which signal is sampled by a device 15 responsive to the tachometer pulses, the sampled value being used to control a power amplifier which energizes a motor 19 driving the member. Comparison is made in a phase detector 11 which comprises a transistor bistable circuit Fig. 2 (not shown) switched alternately by the tachometer and reference pulses. The two states cause charging and discharging respectively of an integrating capacitor 21 and the average voltage across this, and its associated resistor 51 is a measure of the phase relationship between the two sets of pulses. This voltage is converted to a current in a transistor circuit 13, which charges a further, storage, capacitor (65). This is periodically coupled to a sampling  capacitor in circuit 15 by the leading edge of each tachometer pulse and is discharged by the trailing edge. The voltage on the sampling capacitor controls the power amplifier 17, which is stabilized by negative feedback of motor current detected by resistor 105. The circuit 15 attenuates the ripple frequency (i.e. it filters) and includes a phase advance circuit to improve the response time of the system. The power amplifier includes a transistor whose conductance is varied; during run-up this is fully conducting and this condition operates a "clamp" 23 which applies a predetermined voltage to capacitor 21 to render the phase control inoperative. This is to prevent the system locking on to a sub-multiple of the reference signal.
Patent GB-1490097-A (GB)
Title: Method of forming a cylindrical or part-cylindrical element and an element having two stable configurations
IPC: B29C53/04
Filed: 1974-12-19
Abstract: 1490097 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 19 Dec 1974 [22 Dec 1973] 54900/74 Heading F2A [Also in Division B3] A strip for use as cylindrical or part-cylindrical bearing liner has a first stable configuration wherein the strip is straight along its length, and curved in section at right angles to its length, and when curved along its length adopts a second stable cylindrical or partcylindrical configuration in which the length of the strip runs round the cylinder, the inside surface of which is the convex surface in the first configuration. Strips may be stacked, stored, and transported in the first configuration, and converted to the second configuration for use.
Patent GB-1460286-A (GB)
Title: Ampholytic compound
IPC: C09K23/42
Filed: 1973-11-29
Abstract: 1460286 Ampholytes containing oxyalkylene groups BEROL KEMI AB 29 Nov 1973 [30 Nov 1972] 55512/73 Heading C2C [Also in Division C5] The invention comprises compounds of general formula where R is a C 6 -C 22  aliphatic or cycloaliphatic group, or an aromatic group with one or more alkyl substituents having a total of 4-18 carbon atoms in the alkyl substituents; R 1  and R 2 , which may be the same or different, are each C 1 -C 3  alkyl; p 1 , p 2  and p 3  which may be the same or different are integers 2, 3 or 4, n 1 , n 2  and n 3  are integers from 0 to 10, the total sum of n 1 , n 2  and n 3  being in the range 1-10, and q is 1, 2 or 3. These compounds are produced by reacting a hydroxyl compound with epichlorhydrin to form the chloroglyceryl ether of the hydroxy compound, which is aminated and quaternized in two stages by reaction with first a dialkylamine, R 1 R 2 NH, and then a monohalogeno carboxylic acid hal- C q H 2q COOH (hal=halogen); alternatively the glyceryl ether may be aminated and quaternized in one stage by reaction with an amino acid R 1 R 2 N-C q H 2q COOH. In the examples R 1 = R 2 =H, and the hydroxy compound used is C 16 H 33 O(C 2 H 4 O) 4 H, C 8 H 17 O(C 3 H 6 O) 2 H, C 9 H 19 C 6 H 4 O)C 2 H 4 O) 2 H and C 8 H 17 O(C 4 H 8 O)(C 3 H 6 O)(C 2 H 4 O)H. The compounds may be used in detergent compositions.
Patent GB-1337686-A (GB)
Title: Momentary contact switch
IPC: H01H3/14
Filed: 1971-11-30
Abstract: 1337686 Retractive switches; casings SWITCHES Inc 30 Nov 1971 [1 Dec 1970] 55540/71 Heading H1N An electric switch comprises a rigid housing part 18, Fig. 3 having an annular recess 28 containing a pair of spaced spring-blade contacts 30, 40 which are depressed into mutual engagement by a projection 78 on a flexible cover 76 when depressed. Recessed slots 44 provide for terminal wire connections to lugs 42 on the contacts 30, 40. One contact 30 may have radial ridges (62), Fig. 2 (not shown) engaged by a circumferential ridge (64) on the contact 40 to provide point contact. A central portion 52 of housing part 18 has recesses 38 supporting the connecting wires 48 to reduce the strain on the terminal connections.
Patent GB-1326585-A (GB)
Title: Tunnel kilns
IPC: F27B9/30
Filed: 1970-11-23
Abstract: 1326585 Tunnel kilns INSTYTUT NAWOZOW SZTUCZNYCH W PULAWACH 23 Nov 1970 [24 Nov 1969] 55544/70 Heading F4B In a tunnel kiln for burning ceramics which comprises a preheating zone 1, a burning zone 2 and a cooling zone 3, the cross-sectional configuration of the zone 2 is different from that of either the zones 1 and 3 in that at least the walls of one of the zones 1 and 3 are provided with ribs. The ribs are arranged transversely to the longitudinal axis of the kiln and extend over substantially the full height of both side walls and over the roof of the kiln.
Patent GB-1292000-A (GB)
Title: Sealing means
Inventor: SERRANO FRANCISCO
IPC: B63C11/00
Filed: 1969-11-13
Abstract: 1292000 Joint-making packing COMPAGNIE FRANCAISE DES PETROLES 13 Nov 1969 [7 May 1969] 55659/69 Heading F2B Jointing means between two opposed surfaces 10, 13 comprises directly engaging the surfaces in sealing contact or interposing a sealing member such as 0-ring 15 therebetween and, in addition, providing an inflatable sealing ring 8 disposed in a chamber 7 defined by extensions 9, 12 of the surfaces 10, 13. The opposed surfaces 10 and 13 and the cylindrical extensions 9 and 12 are formed on vessels 11 and 14, respectively, which may be submerged vessels, and the chamber 7 is closed by plates 19 resting on the ring 8 and supported by rims 17 and 18 on the vessels 11 and 12, respectively. The rim 18 is interrupted at one portion to facilitate insertion or removal of the plates 19, the said portion being closed by detachable closures 20, 22 secured by bolts 21, 23, and overlapping a plate 24 having a lifting rod 25. In a modification, Fig. 4 (not shown), the inflatable sealing ring is housed in a chamber external to the vessels (27, 29). In the modification shown in Fig. 6, the chamber housing the inflatable ring 38 is closed by plates 33 disposed vertically side-by-side.
Patent GB-1344668-A (GB)
Title: Ridial piston pumps
IPC: F04B1/053
Filed: 1971-12-02
Abstract: 1344668 Reciprocating pumps FICHTEL & SACHS A G 2 Dec 1971 [16 Dec 1970] 56098/71 Heading F1A In a radial piston pump comprising spring- loaded pistons 6 engaging an eccentric 2 via slippers 8, liquid is drawn into the cylinders 15 from eccentric chamber 3 via groove 10 in the eccentric and a passage through the piston, and is discharged via passages 28 and a common non-return valve 16, the piston passage being restricted by an orifice plate 9, such that above a predetermined speed the pump output is substantially constant. The shaft bearings are lubricated by liquid from chamber 3 via passage 13, chamber 30 and passages 11, 12 and 27. Valve 16 comprises an annular plate 22 loaded by a plurality of springs 23, and having an aperture aligned with discharge passage 21.
Patent GB-1167609-A (GB)
Title: Improvements in or relating to Submerged Arc Welding
IPC: B23K9/035
Filed: 1967-12-12
Abstract: 1,167,609. Welding by fusion. LINDE A.G. 12 Dec., 1967 [16 Dec., 1966], No. 56328/67. Heading B3R. In submerged arc welding plates 1, the plate edges are profiled to provide a V-, Y- or U-, shaped groove and are positioned with an open root gap on a backing layer 6, the groove is partially filled with steel granulate 4 prior to the introduction of flux powder, and the welding current is so selected that the ratio of the weights of electrode wire and steel granulate fused per unit time is between 1 : 1 and 1À4 : 1. The groove may be filled by further passes without the use of a steel granulate. The backing layer 6 is a grooved copper strip, a fabric, e.g. glass fibre or a layer of powder, e.g. flux, fire-clay or sand, and is supported by a layer 7 of flux or sand on a series of blocks 8, e.g. of wood, on a hose 9 inflatable by air or water in a trough 5. Strips 10 comprising permanent or electro-magnets are secured to the sides of the trough 5 and hold the plates 1 during welding.
Patent GB-1198887-A (GB)
Title: Improvements in or relating to Brackets
Inventor: GOULDING DAVID JAMES
IPC: A47B57/42
Filed: 1968-11-28
Abstract: 1,198,887. Shelving. CROMPTON NETTLEFOLD STENMAN Ltd. 28 Nov., 1968, No. 56436/68. Heading A4B. A shelf support assembly comprises a channel section upright 1 with a row of slots 6 in one of its flanges 3, 4 and a shelf bracket 2 provided at its inner end with integral plate-like hooks 13 which selectively engage the slots 6 to lie parallel to the web 5 of the upright 1 and to support the bracket 2 in a position to extend outwardly from the web 5 of the upright 1. A rear edge 19 of a shelf supporting limb 11 of the bracket 2 bears on the web 5. Screws pass through holes 14 in the limb 11 to secure the shelf. The limb 11 may have an upturned free end (21). Sections of an upright may be interfitted end to end by engagement of a tongue 7 in a lower section to be secured by a screw passed through aligned holes 8, 9 in the two sections and engaged in a wall.
Patent GB-1298607-A (GB)
Title: Germicidal and fungicidal agents comprising nitrodiphenyl ethers and use thereof
IPC: C07F9/12
Filed: 1970-11-30
Abstract: 1298607 Nitrodiphenyl ethers NIPPON SODA CO Ltd 30 Nov 1970 [1 Dec 1969] 56725/70 Headings C2C and C2P The invention comprises diphenyl ether-compounds of the general formula in which X is halogen, hydroxyl or C 1 -C 3  alkyl; Y is halogen; R is hydrogen, sodium, zinc (equivalent), a group -COR, an aromatic acyl group -COC 6 H 4 Z in which Z is hydrogen, halogen or methyl, a group CH 2 COOR<SP>1</SP>, hydroxycarbonylmethyl or an alkali metal salt thereof, tosyl, chloromethanesulphonyl, dihydroxyphosphinyl or an alkali metal salt thereof, a group -PO(OR<SP>1</SP>) 2 , a group or a group -CONHR<SP>1</SP>, R<SP>1</SP> being a C 1 -C 3  alkyl group: n is 0 or 1 and m is 0 or an integer from 1 to 3 providing that both m and n are not both 0. The compounds in which R is CH 3  and X is H or CH 3  may be prepared by the following reaction -If X is halogen it may be substituted into the product so obtained. When X is OH and R is OH the compound may be prepared as follows When R is H the compound may be prepared as follows The last product may then be reacted with NaOH, ZnCl 2 , O(COR<SP>1</SP>) 2  or ClCOR<SP>1</SP>, ClCOC 6 H 4 Z, ClCH 2 COOR<SP>1</SP> (or ClCH 2 COOH + R<SP>1</SP>OH), ClCH 2 COOH, ClSO 2 C 6 H 4 CH 2 , ClSO 2 CH 2 Cl, ClPO(OR<SP>1</SP>) 2 , ClPS(OR<SP>1</SP>) 2 , POCl 3  and R<SP>1</SP>NCO to introduce as group R Na, Zn (equivalent), -COR<SP>1</SP>, -COC 6 H 4 Z, -CH 2 COOR<SP>1</SP>, -CH 2 COOH. -SO 2 CH 4 CH 3 , -SO 2 CH 2 Cl, -PO(OR<SP>1</SP>) 2 , -PS(OR<SP>1</SP>) 2 , -PO(OH) 2  and -CONHR<SP>1</SP> respectively. Disodium 5-chloro-2-(4-nitrophenoxy)phenyl phosphorate is made by reacting 4 - chloro - 2 - hydroxy - 4<SP>1</SP> - nitrodiphenylether with phosphorus oxychloride in the presence of NaCl and then treating the product with warm water to form an oily fraction which is separated, acidified with HCl and then treated with aqueous alcoholic caustic soda. The diphenyl ether compounds of the general formula above are used as germicidal and fungicidal agents and may be used alone or with known germicides in the form of solutions, emulsions or dispersions in antiseptic detergent compositions, for the treatment of fabrics, in compositions for the treatment of human waste or sewage or as a slime control agent for water used in paper manufacturing.
Patent GB-1348970-A (GB)
Title: Reservoir for a split circuit hydraulic braking system
IPC: B60T17/22
Filed: 1972-12-13
Abstract: 1348970 Master cylinder reservoirs, level indicating devices DEUTSCHE BENDIX AUSRUSTUNGS GmbH 13 Dec 1972 [17 Dec 1971] 57513/72 Headings F2E and F2F In a two chamber reservoir for a split circuit hydraulic braking system, the two chambers 4, 5 are separated by a dividing wall 6, above which, in an inlet 7 is situated a sieve 11 through which the wall is continued, to form a partition 12, which wall and partition prevent fluid transfer from one chamber to the other. As shown, the sieve 11 is located in a circular groove 15 in the inlet by means of three lugs 13. A curved projection 17 formed on the underside of sieve 11 contains a groove 18 which bears on an inverted V-shaped surface 19 on the wall 6. Level indicators 8, 9 are provided in each chamber. The reservoir casing 1 is formed of two dished plastics members which may be injection moulded thermoplastics members.
Patent GB-1421138-A (GB)
Title: Radiation redistributive device
IPC: G03B21/60
Filed: 1972-12-13
Abstract: 1421138 Projection screens EASTMAN KODAK CO 13 Dec 1972 [13.Dec 1971 (2)] 57517/72 Headings G2J and G2X A reflective front or transparent rear projection screen has a surface with a plurality of parallel contiguous grooves 16, the depth of each groove undulating along its length to define a row of concave and convex optical microelements 11, Fig.6, each microelement being contoured to produce substantially uniform radiance throughout predefined vertical and horizontal, or other perpendicular, field angles; the plane which bisects one of the field angles and which extends perpendicular to the groove length intersects with similarly defined planes of all other microelements substantially along a first line which extends parallel to the surface and is in a plane perpendicular to the groove length. As shown in Figs. 4, 5 and 6 the optical elements 11 tilt as their displacement from the screen centre C increases, the tilting being towards and away from the centre depending on whether the screen is reflective or refractive respectively. The juncture of adjacent grooves 16 form cusp lines 17 and the screen may be cylindrically or spherically curved. The screen can be used in conjunction with a Fresnal lens.
Patent GB-1197199-A (GB)
Title: Polyarylene Disulphimide Sulphones
Inventor: RADLMANN EDUARD
IPC: C08G75/23
Filed: 1967-12-20
Abstract: 1,197,199. Polyarylene disulphimide sulphones. FARBENFABRIKEN BAYER A.G. 20 Dec., 1967 [21 Dec., 1966], No. 57854/67. Heading C3R. The invention comprises polyarylene disulphimide sulphones containing units of formula where X is chlorine or hydrogen, Ar<SP>1</SP> and Ar<SP>2</SP> are phenylene or naphthylene radicals, R<SP>1</SP> and R<SP>2</SP> are hydrogen, alkyl, nitro or halogen, and M<SP>1</SP> is an alkali metal. The polymers are prepared by reacting a polychlorodiphenylsulphone of formula with an alkali metal salt of a bis-hydroxyaryldiaulphimide of formula where M is an alkali metal, in a polar organic solvent at 90 to 160 C. The polymer may be modified by including in the reaction mixtures alkali metal salts of bisphenols of formula where R is an aliphatic, cycloaliphatic or araliphatic radical, -O-, -S- -SO-, -SO 2 - or -CO- or a single bond. The salts of the bis-hydroxyaryl disulphimides and of the bisphenols, when used, may be prepared in situ. In examples, potassium and sodium salts of bis-(4-hydroxyphenyl)-disulphimide sodium are reacted with 4,4<SP>1</SP>-dichlorodiphenyl sulphone, with 3,31,4,41 - tetrachlorodiphenylsulphone and with 3,4,4<SP>1 </SP>- trichlorodiphenylsulphone, some of the reaction mixtures also containing salts of 2,2 - bis - (4 - hydroxyphenyl) - propane, 4,4<SP>1 </SP>- dihydroxy - diphenylsulphone and 2,6 - dihydroxy - naphthalene.
Patent GB-1310380-A (GB)
Title: Amplifiers
Inventor: DAVIS W F
IPC: H03F3/187
Filed: 1970-12-10
Abstract: 1310380 Transistor amplifiers MOTOROLA Inc 10 Dec 1970 [23 Dec 1969] 58584/70 Heading H3T A transistor amplifier comprising an input stage 20, an emitter follower stage 16 and a further stage, e.g. Darlington pair, 26, 28, is characterized in that the input stage includes at least one diode 22, 24 in its emitter circuit, and also in that the input and emitter follower stages are both biased to establish an emitter-collector current of such a value as to minimize phase shift. The three stages may be formed as an integrated circuit and may be coupled to an output stage 42 with negative feedback applied via filter 50, 52, 54.
Patent GB-1281569-A (GB)
Title: Cooling arrangements for combines
Inventor: ASHTON ROBERT
IPC: F01P11/12
Filed: 1969-12-02
Abstract: 1281569 Combine harvesters MASSEY FERGUSON INDUSTRIES Ltd 2 Dec 1969 [4 Dec 1968] 58764/69 Heading A1F [Also in Division B7] A self-propelled combine harvester includes an enclosed engine compartment 24 housing a liquid-cooled engine 60, first fan means 64 to force air into the compartment 24, a radiator 94 for cooling the engine-cooling liquid and second fan means 88 for causing air to flow through the radiator. As shown, an operator's platform 30 is located adjacent the engine compartment, under the action of fan 64, which is driven from the engine, air enters the compartment through a grill 76 and rotary air screen 50. Fan 64 maintains the pressure in the engine compartment at a value above atmospheric. The air circulates about the engine and exits through ports e.g. ports 78 located so as to permit the air to blow dust and chaff away from the operator's platform. Some of the air also circulates in the region of the radiator compartment 26 and exits at a location such as to blow dust and chaff away from air filter surfaces of the radiator compartment. The radiator compartment 26 has a grill 86 and a filter screen 96; the front wall 80, floor 82 and top 84 may be constructed partially or completely of screen material. An additional heat-transfer device 106 e.g. a condenser for air-conditioning, may be provided. The fan 88 is driven from the engine 60. In modifications (not shown), the radiator compartment is located elsewhere on the machine than next to the engine compartment, or the radiator may have a fan on one side thereof and an air screen. on the other side thereof instead of it being enclosed in a compartment.
Patent GB-1414390-A (GB)
Title: Lenses
IPC: G02B13/24
Filed: 1973-12-27
Abstract: 1414390 Lenses CANON KK 27 Dec 1973 [26 Dec 1972] 59900/73 Heading G2J A lens system of high resolving power but a small reduction ratio (e.g. 0.5) for use in projection printing of a photomask on to a semi-conductor wafer in the manufacture of I.C.s comprises the eight lenses I-VIII shown. Elements Ia Ib may be cemented together and lens IV may comprise at least two elements cemented together. The parameters of the system must satisfy fifteen detailed inequalities. Data are given for three examples, in two of which a parallel sided glass plate IX is provided to prevent oxidation of the photo-resist of the negative type.