baber/WOPTO huggingface dataset:
Patent GB-1090386-A (GB)
Title: Improvements in or relating to fluid-flow control valves
IPC: F16K27/02
Filed: 1965-02-24
Abstract: 1,090,386. Moulding fluid-pressure control valves. MUANYAGIPARI KUTATO INTEZET. Feb. 24, 1965 [March 3, 1964], No. 8012/65. Heading B5A. [Also in Division F2] A fluid-pressure control valve is made in two parts, a spindle 1 comprising a closure member 7, a screw-threaded portion 8, and a hand. operated control knob 2, integrally formed therewith, and a casing 3. The spindle 1 may be made of thermoplastic or thermosetting synthetic plastics material, of plastics material and metal, or of metal only, and the casing is made by injection or compression moulding plastics material, preferably thermoplastics material, directly about the spindle while the latter is supported in a suitable mould. Various modifications are described wherein, for example, the closure member is tapered, Figs. 4 and 5 (not shown), the casing is shaped as at (14), Fig. 6 (not shown), such that the sealing between the casing and closure member (13) is augmented by fluid pressure within inlet (5), leakage between spindle 1 and casing 3 is limited by a ridge (16), Figs. 7 and 8 (not shown), which bears firmly against spindle 1 as this is unscrewed, and wherein the casing is corrugated as at (21), Fig. 9 (not shown), to provide axial flexibility and the spindle 1 is provided with a blind bore (19) to increase lateral flexibility. A lubrication bore (20) is also provided. Preferably, prior to the moulding step, the spindle is pre-treated with a swelling or contracting agent which in the case of a metal spindle is a heat treatment, and preferably also is treated with a parting agent such as graphite, molybdenum disulphide, silicon grease, polyvinyl alcohol or cellulose acetate. In the case of graphite and molybdenum disulphide, these may be added to the starting material prior to manufacture of the spindle. In an example, the spindle is injection moulded from a polycaprolactam containing graphite and the casing is moulded from a low melting-point polyamide. Another spindle material mentioned is polyformaldehyde and casing materials mentioned include polyethylene, polypropylene, polyformaldehyde and polycarbonate.
Patent GB-550241-A (GB)
Title: Improvements in and relating to ice trays for refrigerators
IPC: F25C1/24
Filed: 1941-06-27
Abstract: 550,241. Ice making; ice - breaking tools. STORER, R. M. June 27, 1941, No. 8132. [Class 29]. A domestic ice-making tray is provided with a lever operated pick movable to any part of the length of the tray and adapted to break the ice into irregularly shaped pieces of fine or coarse sizes. In one form, Figs, 3, 4 a guide bar 15 is formed along the top of a longitudinal partition 14 of the tray having laterally extending base portions 16, and a part 19 to which the lever 20 of the pick is pivoted is slidable on the guide from end to end. The pick comprises a set of teeth 22b on a cross member 22 pivoted to the lever and connected to the slide 19 by a link 14 of a length equal to the distance between the pivots on the lever. The slide may be withdrawn at one end 17 of the guide bar, which rests in recesses in the end walls of the tray, and a stop 26 at the other end of the guide bar prevents displacement of the slide from that end. The guide bar may have rack teeth 28, Fig. 10, engageable by a spring pawl 29 pivoted to the lever to advance the slide and lever by one or more definite steps along the tray. In another construction, Fig. 12, upward movement of the lever is limited by the engagement of the parallel link 128 with an adjustable screw stop 131 on the lever. A member 132 pivoted to the lever has a pawl pin in a hooked part 135 embracing the guide bar, the pawl being held in a raised position by a spring 137 when the lever is raised, to engage teeth in a rack 119 and act as an abutment while the lever and pick are depressed. When the lever is completely raised the pawl pin drops out of engagement with the rack to permit the parts to be moved to a new position. The free end of the lever may be notched to serve as a scraper for removing ice &c. from the guide bar.
Patent GB-375346-A (GB)
Title: Improvements in audio frequency signalling systems
IPC: H04Q1/446
Filed: 1931-03-17
Abstract: 375,346. Exchange systems. RYALL, L. E., 159, Westmead Road, Sutton, Surrey. March 17, 1931, Nos. 8156 and 19905. [Class 40 (iv).] A circuit arrangement for responding to signals of a definite frequency within the voice range comprises a neon tube 8 coupled to the anode circuit of an amplifier 5 and acting to limit the voltage of the received signals to a predetermined maximum value. The limited voltage is applied over a tuned circuit 9, 10 to a rectifier tube 12 which is adjusted so that it will only operate a relay 15 when the applied voltage is near the maximum value. The circuit will not respond to speech containing the signal frequency since this frequency will only form a proportion of the limited voltage and this will be insufficient to actuate rectifier 12. This proportion may be reduced by making the amplifier 5 less efficient for the signal frequency by the insertion of a rejector circuit 4, 4<1>. The rectifier circuit includes a metal rectifier 11 co-operating with a condenser 13 and high resistance 14 to give a comparatively steady plate current. The circuit may be extended by the provision of tuned circuits in parallel to respond to signals of combination-frequency type, and a rejector circuit for harmonics of the signal frequencies is preferably included to prevent the production of one of these frequencies by cross modulation of harmonics. The signal frequencies may be supplied from a main exchange to a P.B.X. operator's keyboard equipment over a common channel such as a phantom or simplex circuit on a junction or battery-feed line, the frequencies being separated at the P.B.X. by filter circuits. Specification 354,250 is referred to.
Patent GB-819689-A (GB)
Title: Thiophosphoric acid esters
IPC: C07F9/18
Filed: 1957-03-12
Abstract: The invention comprises thiophosphoric esters of the general formula <FORM:0819689/IV (b)/1> wherein R is C1-C4 alkyl, R1 is an alkyl radical or an aryl radical which may be substituted, e.g. by alkyl, halogen or nitro, aryl is a phenylene radical which may be substituted, e.g. by alkyl, hydroxy, alkoxy, or halogen, and n is 0 or 1.  The sulphide or sulphoxide substituent may be in o, m, or p-position in the aryl nucleus with respect to the ester link. Specified radicals R1 are methyl, ethyl, propyl, butyl, amyl, phenyl, p-chlorophenyl, p-xylyl and p-nitrophenyl.  The compounds may be obtained by reacting a substituted phenol of the general formula <FORM:0819689/IV (b)/2> wherein R1, Aryl and n are as defined above with an appropriate O,O-dialkylthiophosphoric acid ester chloride in the presence of an acid binding agent or by reacting an alkali metal salt of the phenol with the O,O-dialkylthiophosphoric acid ester chloride in an inert organic solvent.  Compounds in which n is 1 may also be obtained by oxidizing a compound of the above general formula in which n is 0 with hydrogen peroxide or by means of a halogen or a hypohalogenic acid.  The first-mentioned reaction process should generally be carried out in an inert organic solvent such as benzene, toluene or xylene and the acid binding agent is preferably an alkali metal alcoholate, e.g. sodium ethylate.  The hydrogen peroxide reaction is preferably carried out at about 0 DEG  C. in the presence of a lower aliphatic carboxylic acid such as acetic acid and using hydrogen peroxide in a concentration of about 0 DEG  C.  Examples are given for the production of (1) p - CH3S-C6H4-O.P(S)(OC2H5)2 (2) p-CH3S-C6H4-O.P(S)(O iso C3H7)2; (3) p-CH3S(O)-C6H4-O.P(S)(OC2H5) 2; (4) p-CH3 S(O)-C6H4-O.P(S)(O iso C3H7)2; (5) p-CH3 S-C6H4-O-P(S)(OCH3)2 and p-CH3S(O)-C6H4-O-P(S)(OCH3)2; (6) p-C2H5S-C6H4 OP(S)(OC2H5)2 and p-C2H5S(O)C6H4OP(S)(OC2 H5)2; (7) m-CH3SC6H4OP(S)(OC2H5)2; (8) m-CH3SC6H4OP(S)(OCH3)2; (9) o-CH3SC6H4 OP(S)(OC2H5)2; and (10) o-CH3S(O)OP(S) (OC2H5)2.  The products are stated to have valuable insecticidal properties (see Group VI).ALSO:An insecticidal composition comprises as active ingredient a thiophosphoric acid ester of the general formula <FORM:0819689/VI/1> wherein R is a C1-C4 alkyl radical, R1 is an alkyl radical or an aryl radical which may be substituted, e.g. by alkyl, halogen or nitro, Ar is a phenylene radical which may be substituted, e.g. by alkyl, hydroxy, alkoxy, or halogen, and n is 0 or 1 (see Group IV (b)) and an inert solid carrier or liquid diluent.  Examples of the radical R1 are methyl, ethyl, propyl, butyl, amyl, phenyl, p-chlorophenyl, p-xylyl, and p-nitrophenyl.  Specified carriers and diluents are talc, chalk, bentonite, clay, water and organic solvents.  A suitable composition is made by dissolving O,O-diethyl-O-(p-ethylsulphoxylphenyl) - thionophosphate in dimethylformamide, adding an emulsifier (benzylhydroxydiphenyl-polyglycol ether) and diluting with water. The compositions may also be in the form of aerosols.
Patent GB-167454-A (GB)
Title: Improvements relating to treatment of sewage
IPC: C02F3/12
Filed: 1921-03-16
Abstract: 167,454. Dorr Co., (Assignees of Peck, C.L.). July 31, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Plant; gravity-separation apparatus; aerating; bacteriological processes; treating - materials; manures.-A complete system of sewage treatment comprises (1) subjection of the sewage to biological action as it flows through the sewer, (2) screening, (3) upward passage of the sewage through an accumulation of biological sludge, (4) aeration with circulation in the presence of sludge and sedimentation. One or more of these steps may be omitted and the order of the last two may be reversed. Bacteria and materials conducive to biological growth may be added at any step of the treatment, such materials including iron, iron hydroxide and carbonate and other compounds or iron, carbonates and hydroxides of manganese, titanium, aluminium, and metals of the earth-oxide group, powdered fertilizing agents such as phosphate rock, and greensand, antitoxic agents such as potassium bicarbonate or other bicarbonate. Effluents from packing- houses. waste vegetable products, such as sawdust or garbage, or the screenings obtained in the preliminary treatment of sewage as described in Specification 161,164. may also be added with the object of providing food for the organisms. The sewage after subjection to biological action in the sewers 5, 6 is passed through a rotary strainer 12 to a digesting tank 21 in which it is distributed below an accumulation of biological sludge by a rotating perforated pipe 26. A rotary arm 27 has rakes 28, an agitating chain 32 and a plough at the end to prevent the accumulation of septic matter. The overflow from the tank 21 passes to a tank 35 for aeration, circulation and settling. Air-diffusers 36 are provided in the bottom of the tank and under the influence of the air the liquid rise,; into a central pipe 50, the major part of the liquid passing downward again through a pipe 49, attached to a rotating shaft 42 which supports scrapers 45 directing sludge outward along the bottom of the tank to mingle with the inflowing liquid. A portion of the circulating liquid flows over the top of the pipe 50 and is directed on to an inclined tray 38 by a concentric baffle 52. Rotary scrapers 45 coact with the surface of the tray. Sludge suitable for use as fertilizer is discharged through a pipe 54, some of the liquid is returned down wells 39 to the lower compartment, and clear effluent leaves bv a launder 47. If treatment in the tank 21 is made the last step of the process, sludge is withdrawn through a pipe 29 and the level of the sludge kept so that a clear effluent overflows from the tank.
Patent GB-383152-A (GB)
Title: Improvements in or relating to insulating roofs for storage tanks
IPC: B65D88/36
Filed: 1932-03-21
Abstract: 383,152. Preventing and extinguishing fires. LENTSCHEWSKY, B., 22, Emserstrasse, Berlin. March 21, 1932, No. 8363. Convention date, March 24, 1931. Drawings to Specification. [Class 47 (ii).] A floating cover for storage tanks is made up of a number of sections having rebated or stepped edges, the outstanding portions of adjacent floats either overlapping one another or being covered by a closure member. The sections may contain, or support, containers for fire-extinguishing means such as CO2 or foamforming substances, fusible metal plugs or thermostat-controlled closures being provided.
Patent GB-664613-A (GB)
Title: Improvements in coupler devices
IPC: B60D1/04
Filed: 1949-03-28
Abstract: 664,613. Vehicle couplings. UGGLAS, C. AF. March 28, 1949, No. 8380/49. Addition to 629,873. Class 103(v) An arrangement for coupling tractor and trailer, similar to that described in the parent Specification, comprises a hook 3, 4 mounted on one vehicle and a member 9, arcuate in plan form, mounted on the other vehicle, wherein a pivoted catch 6 projects into the aperture of the hook 3, 4 which is open upwards, so that when the member 9 is engaged therewith the catch 6 is moved aside and afterwards swings back under the weight of its lower cam part 7 so as to lock the coupling. The coupling may be disengaged by rotation of a control lever 8 so that the cam part 7 forces the member 9 out of the hook aperture 12.
Patent GB-844529-A (GB)
Title: Disc brake, particularly for motor vehicles
IPC: F16D65/14
Filed: 1959-04-15
Abstract: 844,529. Disc brakes. KLANE, H. April 15, 1959, No. 8409/57. Class 103 (1). In a vehicle disc brake in which an axiallyslidable brake disc 10 provided with brake linings 8 and rotatable with the wheel hub through splined connections 30 is pressed against a stationary brake housing 11 by an hydraulically-actuated brake actuating ring 17 which is mounted coaxially with the brake axis; the pressure-ring 20 of which is frictionally connected through an insulating-ring 22 with the side remote from the brake disc of an axiallyslidable pressure-plate 15 by means of which the brake disc is pressed against the inner wall of the brake housing 11. The pressure-plate 15 guided on splines mounted on a, brake-housing 11 is returned to its inoperative position by cupspring disc 31. Cooling air is induced to flow through apertures 3 in the wheel disc 2 as the wheel rotates. Alternative embodiments are described and illustrated in the Specification; one embodiment incorporating a mechanicallyoperated means incorporating an arrangement having balls in inclined recesses similar to that disclosed in Specification 823,875, in addition to the hydraulically-operated means disclosed above.
Patent GB-591968-A (GB)
Title: Improvements in or relating to two-way radio communication systems
IPC: H04B1/56
Filed: 1945-04-05
Abstract: 591,968. Duplex radio signalling. ACE ELECTRONICS, Ltd., WELCH, L. C., and COOK, R..J. (April 5, 1945, No. 8431. [Class 40 (v)] In a two-way radio communication system, the terminal stations transmit signal energy in pulses of a repetition frequency intermediate between the carrier and signal modulation frequencies, the stations being synchronized so that each transmits during the intervals between the pulses transmitted by the other station. The transmitting valve 1 at each terminal station is modulated on the outer grid 25a by signals from the transformer 24a, and derives an R.F. excitation from the driver stage 4. The output from the valve 4 is controlled by applying to the grid 6 square-topped impulses derived from the single-stroke multivibrator 7 over the shaping valve 8. Signals from the remote station are demodulated in the receiver 9 and applied over the pulse demodulator 25b to the reproducer 11. In addition, they are applied over the connection 13 to a limiter 15. The square-top wave of pulse repetition frequency thus produced is differentiated by the circuit 16, 17 and applied to the rectifier 18 to suppress the impulses produced by the leading edges of the arriving pulses. Impulses corresponding to the trailing edges are transmitted to the grid 20 of the multivibrator 7, which is thus triggered to energize the transmitter 1, upon cessation of the received signal pulse from the remote station. In addition, during transmission, an impulse is transmitted over the line 24b to mute the receiver 9. Operation of the system is initiated by an auxiliary free-running multivibrator 22 at each station, which applies low-frequency pulses to the valve 4. Initially, both stations transmit energy in a series of unsynchronized L.F. pulses. When cessation of a pulse from the remote transmitter occurs during a quiescent period of the transmitter 1, the multivibrator 7 is triggered and synchronized operation commences. The rectifier.24 then rapidly builds up a paralysing bias across the resistance 25, which is applied to the grid 23 to disable the multivibrator 22. To maintain proper operation of the system, the valve 1 is so biassed that the signal modulation never reduces the transmitted' pulses to zero. It is stated that since the repetition frequency of the pulses depends upon the'distance between the stations, the system can be used to provide a measure of that distance.
Patent GB-787385-A (GB)
Title: Method of and means for measuring the width of strip material
Inventor: WUPPERMANN AUGUST THEODOR
IPC: G01B11/04
Filed: 1954-03-23
Abstract: 787,385. Gauging by optical projection. EXATEST GES. FUR MESSTECHNIK. March 23, 1954, No. 8515/54. Class 106 (2). For measuring the width of strip material, especially continuously moving strip, the image of each strip edge a, b is projected optically on to a ground glass screen 5, or the field of vision of a measuring telescope, in such manner that the images a<SP>1</SP>, bl intersect substantially normally. So long as the strip width is constant the point of intersection remains on a line 7 at 45 degrees to the images despite any lateral movement of the strip as a whole. If the strip width varies, the point of intersection will lie on a line 8 parallel to the line 7, the spacing between the lines 7, 8 forming a measure of the deviation. The screen 5 may therefore be graduated by lines at 45 degrees. The image of the edge a is turned through 90 degrees by prisms 2 and projected through a semi-transparent.mirror 3 and lens assembly 4, while the image of the edge b is projected through the mirror 3 and lenses 4 so that it appears horizontal, the paths being equalized by prism assembly 6. The mirror and lenses are adjustable for different widths of strip.
Patent GB-1117872-A (GB)
Title: Magnetic signal-storage media
IPC: G01S13/78
Filed: 1966-02-25
Abstract: 1,117,872. Magnetic recording and playback. SIEMENS-SCHUCKERTWERKE A.G. 25 Feb., 1966 [18 March, 1965], No. 8528/66. Heading G5R. A Hall-effect playback head (28, Fig. 2, not shown) co-operates with a record tape 11 which is premagnetized to have a central longitudinal strip of one polarity between two outer strips of the opposite polarity, a recorded signal being represented by an area 13 in which the directions of magnetization are reversed.
Patent GB-564051-A (GB)
Title: Improvements in or relating to thrust bearings
IPC: F16C17/04
Filed: 1943-05-31
Abstract: 564,051. Thrust bearings. JENNINGS, H. W. K. (Sturtevant Co., B. F.). May 31, 1943, No. 8698. [Class 12 (i)] In a fluid thrust bearing for an axialflow blower, an impeller 12 connected to the blower shaft 5 delivers fluid to an annular member 10 mounted on the shaft to oppose the shaft thrust. Member 10 has an extension 11 in contact with the inner race of the thrust bearing 9. The oil pump is connected by tube 18 and passage 15 to deliver oil to the inlet 16 of the impeller. Member 10 and partitions 13, 14 have a serrated contact with the impeller and shaft. The impeller may provide a pressure equal to or different from the thrust pressure.
Patent GB-110906-A (GB)
Title: Process for the Production of Acetic Anhydride and Polymerised or Non-polymerised Acetic Aldehyde.
IPC: C07C45/54
Filed: 1917-06-19
Abstract: 110,906. Soc. Chimique des Usines du Rhone, anciennement Gilliard, P. Monnet, et Cartier. Oct. 30, 1916, [Convention date]. Acetic anhydride; aldehyde; paraldehyde.-A mixture of acetic anhydride and paraldehyde is cbtained by heating ethylidene diacetate under reduced pressure in the presenc of acids or acid salts acting as catalysts; in an example, a mixture of ethylidene diacetate is heated with concentrated sulphuric acid at 70-80‹ C. under 100 mm. pressure. Heating the reaction product alone or in presence of depolymerizing-agents converts the paraldehyde into aldehyde. The mixture of aldehyde and acetic anhydride is separated into its constituents by distillation. Specification 23190/14 is referred to. Acetic acid.-The Specification as open to inspection under Sect. 91 (3) (a) describes also the production of a mixture of acetic acid and anhydride by heating the mixture of paraldehyde and acetic anhydride in a current of air or oxygen. This subject-matter does not appear in the speci. fication as accepted.
Patent GB-471475-A (GB)
Title: Improvements in drum sieves
IPC: D21F1/60
Filed: 1937-03-25
Abstract: 471,475. Sifting apparatus. KUFFERATH, A. March 25, 1937, No. 8825. Convention date, April 6, 1936. [Class 117] In a drum sieve comprising a drum body and a wire mesh jacket, the circumference of the jacket may be varied by stretching in the longitudinal direction or by relative rotation of the jacket ends, thereby permitting the jacket to be readily tightened on the drum body or removed therefrom. As shown, the wires of the sieve jacket extend diagonally and after application to the drum body are secured to an end disc or ring 4 by a clamping ring 7. The sieve jacket is then elongated by means of screws 5 bearing on the end of the sieve body until the jacket tightly grips the body. In a modified construction, wherein the wires of the jacket are arranged parallel and perpendicular to the drum axis, the jacket is contracted on to the drum by relative rotation of the two ends.
Patent GB-555249-A (GB)
Title: Improvements in and relating to apparatus for setting the time fuzes of ammunition projectiles
IPC: F42C17/02
Filed: 1942-06-26
Abstract: 555,249. Setting projectile fuzes. PHELAN, R. June 26, 1942, No. 8834. [Class 9 (i)] In order that a time fuze of the combustion-ring type may not disclose it setting to the enemy, the setting scale is provided on the setter (hand-type) and not on the fuze. The setter comprises a "fixed" ring e and a rotatable ring f, the latter having handles m, m<SP>1</SP>. The ring e bears an inflammable scale k so that it may be readily destroyed in an emergency. Each of the rings e, f has diametrically-opposed keys, h<SP>1</SP>, h<SP>2</SP> and j<SP>1</SP>, j<SP>2</SP>, respectively, and the body b and time ring c of the fuze have corresponding keyways for engagement therewith. To ensure correct positional engagement, the opposed keys (and keyways) are of different widths. The ring e is grooved at el to receive adjustably two stop elements n, p. The stop n is normally fixed in the zero position, while the stop p is set to the required setting- mark on the scale and clamped by the wing-nut pl. The handle m has a stop-engaging lug m<SP>2</SP> and the fuze is set by rotating the ring f from the zero position until the lug engages the adjustable stop p.
Patent GB-1527834-A (GB)
Title: Photometry
IPC: G01J1/36
Filed: 1977-03-02
Abstract: 1527834 Automatic speed control LEYBOLD-HERAEUS-VERWALTUNG GmbH 2 March 1977 [3 March 1976] 8835/77 Heading G3R In photometry apparatus, wherein a light beam is chopped by a rotating aperatured disc 1, the disc speed is regulated by controlling two A.C. magnets 6, 7 in an eddy current drive for the disc. The phase between, or the actual size of, the energizing currents to the magnet coils are varied according to the difference between the measured disc speed and a reference. The speed signal is obtained from the chopped light beam, or from a tachometer independently of the light beam.