baber/WOPTO huggingface dataset:
Patent GB-637580-A (GB)
Title: Improvements in or relating to telecommunication systems employing differently polarised electromagnetic waves
IPC: H01Q25/00
Filed: 1946-08-29
Abstract: 637,580. Multiplex radio signalling; directive systems. STANDARD TELEPHONES & CABLES, Ltd. Aug. 29, 1946, No. 25970. Convention date, May 22, 1942. Addition to 618,615. [Classes 40 (v) and 40 (vii)] In a multiplex system of the kind claimed in the parent Specification, each channel employs an artificial pleochroic crystal associated with a wave-guide section forming a resonant cavity. The channel wave generator E, Fig. 1, is connected to a coaxial line le of which the central conductor passes through the rectangularsection wave-guide GE. Matching is effected by tuning the line sections on each side of the wave-guide. The wave-guide is closed at one end by an adjustable piston pe and communicates at the other end with a radiating horn PE. At the receiver a similar horn and wave-guide PR, GR is associated with a crystal detector d arranged therein. Each channel is arranged to use waves of a distinctive state of polarization and in front of the receiver horn is arranged an artificial pleochroic crystal C passing only waves having the appropriate state of polarization. To effect matching, the crystal may be composed of two portions C, C<1>, Fig. 2, the impedance of portion C' having a value intermediate between that of the portion C and that of free space. Alternatively, the horn and wave-guide may be filled with the same dielectric as that constituting the body of the crystal. The receiving arrangement of Fig. 2 comprises a conical horn PR and cylindrical wave-guide GR in which is arranged a loop b contained in a diode tube T, to which is fed the output of a local oscillator 0 and which forms a frequency changer. The system may have superposed thereon jamming waves which are eliminated by the crystal. The artificial pleochroic crystal may be made by the solidification or jellification of a suspension of metallic particles immersed in a dielectric substance which is initially in the liquid state, the mass being subjected to the action of suitable electric and magnetic fields which orientate the particles to the desired positions in the crystalline network. The dielectric may be a paraffin with low melting point, or ozocerite, mixed with petroleum jelly. Other dielectrics may be produced by the evaporation of a solution of vinyl acetate in acetone, toluene or ethyl acetate, or a solution of vinyl chloride in cyclohexanone or a solution of polystyrol or the substance known under the Registered Trade Mark "Trolitol" in acetic ether or toluene.
Patent GB-1146353-A (GB)
Title: Method for compounding rubber
IPC: C08L23/16
Filed: 1966-06-13
Abstract: 1,146,353. Treated carbon black. COLUMBIAN CARBON CO. 13 June, 1966 [29 June, 1965], No. 26166/66. Heading C1A. [Also in Division-C3] Halogen-containing carbon black is prepared by intimately contacting carbon black with a halogen. In Example (1) HAF black is contacted with bromine at room temperature for about 2 hours in a rotating treating chamber and excess bromine is driven off by heating in an oven. In Example (2) HAF black is treated with chlorine for 2¢ hours.
Patent GB-518895-A (GB)
Title: Improvements in or relating to rotary sleeve valve engines operating with liquid fuel injection
IPC: F02M69/00
Filed: 1938-09-07
Abstract: 518,895. Fuel supply to sleeve-valve engines. BAYERISCHE MOTORENWERKE AKT.-GES., and HELMBOLD, T. Sept. 7, 1938, No. 26181. [Class 7 (iii)] Liquid fuel is injected into the suction passage 3 of a sleeve-valve engine through a nozzle 5, the charge entering the cylinder being directed by a curved baffle plate 4. More than one fuel nozzle may be used.
Patent GB-1455669-A (GB)
Title: Crop sprayers sterile package
IPC: A01M7/00
Filed: 1974-06-13
Abstract: 1455669 Crop sprayers BERTHOUD SA 13 June 1974 [12 Oct 1973] 26204/74 Heading B2F [Also in Divisions A1 and F1] A crop sprayer comprises an axial flow fan having an annular air outlet (7), Fig. 1 (not shown), containing liquid sipray nozzles (8), the fan blades 17 being rotatable about their radial axes and being connected with a controlling mechanism so that their pitch may be varied. The fan hub comprises two opposed generally cup-shaped members 12, 13 mounted on the fan shaft (2), member 12 having a tubular extension 12' which is keyed on the shaft (2), and member 13 being rotatalble relative to member 12. The members are formed with inturned edges 12a, 13a defining two annular surfaces, each being part of the same spherical surface which engage with the bosses 16 of the blades 17. Inwardly of the edges 12a, 13a the members are provided with teeth 14, 15 respectively which engage with teeth 18, 19 respectively on each base 16. A main actuating shaft 20 is connected to two transverse shafts 23 by worm-and-wheel gears 21, 22 respecitively. Each transverse shaft 23 has screw threaded ends of opposed pitch, and carries threaded sleeves connected to members 24, 25. Member 24 is longer than member 25 and is screwed into a bore (12b), Fig. 3 (not shown), in cup-shaped member 12 through an arcuate slot 13b in member 13. The head of each member 24 is of larger diameter than the width of slot 13b, and members 24 act to retain member 13 against member 12. Shaft 20 carries a slotted head 20a rotation of which, through an aperture (26a) in the end cap (26) of the fan rotor (1), causes members 24 and 25 to be displaced either towards or away from each other, thus causing member 13 to rotate with respect to member 12, thus changing the pitch of fan blades 17. Adjustment of the blade pitch could be by different means e.g. hydraulic.
Patent GB-762765-A (GB)
Title: Improvements relating to bed-settees and the like
IPC: A47C17/23
Filed: 1953-09-24
Abstract: 762,765. Bed-settees. GREAVES & THOMAS, Ltd., and THOMAS, A. J. July 6, 1954 [Sept. 24, 1953], No. 26306/53. Class 52 (2). A bed-settee frame is in four sections 30 .. 33 pivoted end to end, an intermediate section 31 carrying pivoted locking plates 47 which, when the outer sections are folded and lowered into the settee-frame, engage over pins 56 on links 57 depending from the frame section 33, which forms the seat, to prevent the latter rising during use. The plates are automatically rotated on opening the bed frame to release the pins. The head section 30 is carried on pivoted links 38 on the settee frame, the section 31 being supported by pivoted arms 41 connected to the locking plates 47. The outer sections 32, 33 have foldable legs 48, 66 automatically actuated by links as the parts are folded or unfolded. Tubular transverse brace bars 73, 74 are provided on the sections 30, 32.
Patent GB-1082076-A (GB)
Title: Liquid detergent composition
Inventor: WALKER ARTHUR POLDEN
IPC: C11D1/83
Filed: 1965-06-22
Abstract: A liquid detergent composition comprises (a) from 12 to 60% by weight of the composition of a mixture of from one to five parts by weight of an alkyl polyethylene glycol ether sulphate having the general formula RO(C2H4O)nSO3M (wherein R is a straight-chain alkyl group having 10 to 14 carbon atoms, n is from 2 to 4 and M is sodium or potassium) and one part by weight of a tertiary amine oxide of formula R1R2R3N --> O (wherein R1 is an alkyl grou having 10 to 16 carbon atoms, and R2 and R3 are each a methyl or ethyl group), (b) a proportion of one or more sodium or potassium salts of an organic sequestering agent equivalent to from 4 to 16%, by weight of the composition, of the corresponding acid thereof and (c) water, the pH of the composition being from 8 to 12. Specified organic sequestering agents are salts of aminopolycarboxylic acids, e.g. ethylenediamine tetra-acetic acid and nitrilotriacetic acid, or of ethane-1-hydroxy-1,1-diphosphoric acid.  The mutual solubility of the ingredients may be increased by the addition of a hydrotropic substance, e.g. a C1- 4 saturated monohydric alcohol or sodium or potassium toluene or xylene sulphonate.  The composition may also contain a foam booster, e.g. dodecyl alcohol, dodecyl monoethoxy alcohol or sodium or potassium dodecyl sulphate.  Other ingredients commonly added to detergent compositions, e.g. alkali-metal silicates, soil-suspending agents, such as carboxymethyl cellulose, tarnish inhibitors, perfumes, colouring matter and optical brighteners may also be present.  When an optical brightener is present the composition may be prepared by dispersing or dissolving the optical brightener in a concentrated solution of the tertiary amine oxide and mixing the solution of amine oxide with the other components of the composition.
Patent GB-214943-A (GB)
Title: Improvements in combined electric switches and plug couplings
IPC: H01R13/703
Filed: 1923-10-22
Abstract: 214,943. Erikson, E. J., and Tillquist, H. April 28. 1923, [Convention date]. Switches, quick-action of the type in which the switch is operated by the insertion or withdrawal of the plug member have a spring connected between one end of a pivoted lever in the switch mechanism and one end of a pivoted lever operated by movement of the plug so that its direction of pull on the switch mechanism is reversed during the insertion and withdrawal of the plug. The switch, Fig. 1 has movable contact blades 13 carried by an insulating bar 14 pivotally attached at 15 to a frame 16. An arm 20 is secured to the bar 14 and connected by a link 21 to a lever 22 pivoted at 23. Connected between the end of the lever 22 and the end of a lever 24 pivoted at 25 is a spring 28. The lever 24 has a pin 29 engaged by the hooked end of a reciprocating bar 30 which projects through the side of the switch casing 8, into a slide 31 in the socket hood 32, a hole- 34 being formed in its outer end. The plug 2 has a pin 35 which must first be inserted in the hole 34 before side fillets 36 can engage corresponding grooves in the hood 32 and the plug can be forced home to the position shown, in which the plug contacts 6 engage fixed contacts 37 within the hood 32. During the inward motion of the plug the direction of pull of the spring 28 on the lever 22 is reversed so that the switch closes with a quick action. A similar quick-break is produced when the plug is withdrawn. The contacts 6, 37 are of such a length that the current through the plug and switch is always made and broken at the switch contacts 12, 13, the fixed plug contacts 37 being connected to the movable plug contacts 13 by flexible leads (not shown). To produce positive actuation of the switch in case of failure of the spring 28 a bent-over arm 44 on the lever 24 is arranged to co-operate within a cam portion 45 on the lever 22. A hinged cover 39 is provided to close the plug opening when not in use, this cover having a bent over end 42 which engages a projection 43 on the plug body to hold it when in position. The Specification as open to inspection under- Sect. 91 (3) (a) comprises a modification shown in Figs. 1 (Cancelled), and 3 (Cancelled). in which the connecting bar 30 between the plug and switch mechanism carries a projection 36 engaging recesses 37 in two slidable members 34 located in the base of the socket hood 32. A pin 38 on the plug 2 is also engaged by semicircular recesses in the members 34 which slide between fixed projections 35 and are so shaped that when the plug is withdrawn to the dated position the outer ends of the members 34 move apart, releasing the pin 38 and allowing the plug to be completely detached. In this form the inner end of the bar 30 is pivotally attached to a bell-crank lever pivoted at 27, a dead-centre spring 25 being connected between the other arm of this lever and a point on the switch lever 21 pivoted at 22. This subject-matter does not appear in the Specification as accepted.
Patent GB-1196845-A (GB)
Title: Improvements in or relating to Monolithic Crystal Filters.
Inventor: WERNER JOHN FRANCIS
IPC: H03H9/56
Filed: 1968-06-04
Abstract: 1,196,845. Piezoelectric elements. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. 4 June, 1969 [4 June, 1968], No. 26452/68. Heading H1E. [Also in Division H3] A monolithic crystal filter is similar to that disclosed in Specification 1,195,929 except that the two electrodes forming each intermediate resonator are not connected by a variable capacitor but are connected by a short-circuit connection. Accordingly, the filter is manufactured by a method which consists in measuring the resonant frequency of each of the resonators and carefully building up the electrodes to the required thickness to obtain the desired frequency characteristic. Each electrode comprises a base of gold which is evaporated on to the quartz slab and gold or nickel is electrodeposited on to this base to obtain the required thickness.
Patent GB-1235173-A (GB)
Title: Cylinder structure of piston compressors or pumps
IPC: F04B39/12
Filed: 1968-06-04
Abstract: 1,235,173. Bolts, rivets, hooks, nails &c. MASCHINENFABRIK BURCKHARDT A.G. 4 June, 1968 [7 June, 1967], No. 26467/68. Heading F2H. [Also in Division F1] A reciprocating piston compressor or pump has a cylinder support structure 75, 76, 77 having a bore 4 in which is disposed an assembly 47-49, defining the actual cylinder bore for the piston 51, the assembly being clamped between an abutment surface on the member 76 of the structure and a closure member 26 screwed into the bore 4 so that tie rods 77 are elastically extended by a predetermined amount. The closure member 26 receives a piston 16 having an annular surface 23 supplied with fluid at a predetermined pressure to effect the required elastic extension of the tie rods after the closure member 26 has been screwed into contact with the assembly 47-19. When the predetermined extension has occurred a member 24 threaded in the closure member 26 is screwed into engagement with the assembly 47-49 and the pressure is removed. A number of threads 7, Figs. 4 and 5, of the closure member 26 are rendered discontinuous by longitudinal grooves 69 and the internal thread in the bore 4 is also rendered discontinuous by longitudinal grooves. To screw in the closure 26 it is entered axially into the bore 4, and is then rotated to engage the full threads 8. Means are provided to ensure that the threaded portions not cut away are in engagement when assembly has been completed.
Patent GB-320499-A (GB)
Title: Improvements in or relating to advertising clocks
IPC: G09F23/16
Filed: 1928-09-14
Abstract: 320,499. Shah, S. V. Sept. 14, 1928. Moving apparatus combined with clocks; illumination, changing advertisements by controlling; reel and non-endless web apparatus; articles to be displayed, rotating supports for.-An advertising clock column of polygonal section comprises a translucent mirror behind which passes an intermittently movable advertising band 32 illuminated at intervals. A glass-panelled compartment 36 contains a wireless receiving set 37 operatively associated with sound amplifiers 39 opening intc into two or more faces of the column. Compartments 31 contain articles exposed on rotatable stools 33, or suspended as at 34, or mounted on a back plate 35. The articles may be lit up intermittently in different colours. Metal sign letters may adhere to the plate 35 by magnetism. Direction or advertising panels 43 are mounted on the top of the column. The hands 41 of the clocks 40 may be illuminated by radio-active material or by lamps. Shutters storable in the base of the column may cover the compartments 31 at night.
Patent GB-1492687-A (GB)
Title: Water-soluble lubricant in tabletting compositions
IPC: C11D1/12
Filed: 1975-06-23
Abstract: 1492687 Effervescent tablets JOHNSON & JOHNSON 23 June 1975 [24 June 1974] 26553/75 Heading A5B [Also in Division C5] A water-soluble effervescent tablet of compacted dry, granular active and filler components also comprises a water-soluble lubricant mixture of magnesium lauryl sulphate powder and finely divided polyethylene glycol. The active components may be denture cleaners, antacids, analgesics, antihisstamines, antitussives and sleeping aids.
Patent GB-286566-A (GB)
Title: Coupling arrangement for vehicle trailers
IPC: B60D1/02
Filed: 1927-10-07
Abstract: 286,566. Isachsen, L. Oct. 7, 1927. Couplings for tractors.-A draw bar 12 fits like a sleeve on a rod 11 pivoted by means of a pin 8 to a member 4 of channel iron. The member 4 is pivotally connected to a fork 1 on the tractor by a vertical pin 6. Rattling is prevented by eccentric discs 22 on a revoluble bar 20. The steering rod 14 of the trailer is adjustably secured in a slot 13. The trailer may be braked hydraulically by means of a piston 17 and cylinder 15 connected by a conduit 16 with the brakes. The piston is controlled by the driver through levers 18, 19 ; or the piston may be connected to the brakes so as to be operated simultaneously therewith. The fork 1 may be integral with a nose 23, Fig. 5, adapted to be drawn into a sleeve 24 mounted on the tractor by means of a cable 32, and to be held there by a screw 27.
Patent GB-685302-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G17/06
Filed: 1949-10-17
Abstract: 685,302. Endless conveyers. KING, D. M. Oct. 10, 1950. [Oct. 17, 1949] No. 26603/49. Classes 78 (i) and 104 (ii). A conveyer of the kind wherein a plurality of load-carrying slat members are freely supported on one or more endless driving chains, is characterised in that each of the slat members is provided at one edge with a rolled or beaded portion and at the opposite edge with a grooved or recessed portion so that on appropriate juxtapositioning of any two slat members, the rolled or beaded portion at the one edge of one may be engaged in the grooved or recessed portion at the abutting edge of the second, so as to connect hingedly the two slat members. As shown, slat members 14 are supported by rollers 15 on endless chains 10, 11 housed in channels 12. The slats may be connected together as shown in Fig. 3, one longitudinal edge of each slat being formed with a bead 16 adapted to engage in a turned-up portion 17 formed on the abutting edge of the adjacent slat. The slats may be returned along the underside of the conveyer, being supported by guides so that the return flights of the chain impart the necessary motion thereto.
Patent GB-357357-A (GB)
Title: Improvements relating to a process for the manufacture of articles such as pralines,sweetmeats and the like
IPC: A23G3/02
Filed: 1930-09-05
Abstract: 357,357. Moulding confectionery. KREMMLING, A., Hamersleben, Oschersleben, Germany. Sept. 5, 1930, No. 26607. Convention date, Sept. 17, 1929. [Class 87 (ii).] For manufacturing pralines, sweetmeats, and the like in a continuous process, material fed in small batches into the container 18 is delivered to a press chamber 22 by the rollers 19, 20, 21, the larger one 19 of which is driven intermittently from a main power shaft 7 by the ratchet gear 29 and connecting- rod 30. The material extruded through the row of nozzles 24 is flattened to the shape required by an upward movement of the pivoted table 3 obtained by the action of the cam 10 on the links 8, 9 of which the latter is adjustable to vary the stroke. A second cam 14 operates a reciprocating knife 13 against the action of a spring 15 to sever the articles which fall on to a delivery band carried by the table 3 and operated intermittently by the connecting-rod 5 and ratchet gear 4. The tube is lowered again while the cutting action is in progress, so that the cut-off articles fall clear of the extrusion orifices. The walls of the container, the press chamber, the nozzle, the knife and the hollow shafts of the rollers are all heated to maintain the material at the requisite temperature for moulding. The container and press chamber may be partitioned by heated walls. A rotary cutter may be used in some instances. Also the table may be raised and lowered several times at varying speeds to shape the articles during the time extrusion is occurring.
Patent GB-1298709-A (GB)
Title: Improvements in or relating to pulse-doppler systems
Inventor: CROSS MALCOLM GEOFFREY
IPC: G01S13/528
Filed: 1970-06-02
Abstract: 1298709 Pulse radar MARCONI CO Ltd 4 May 1971 [2 June 1970] 26668/70 Heading H4D In a pulse Doppler radar the relationships between pulse repetition period (p.r.p.) and range and between p.r.p. and Doppler frequency shift exhibit "blind" zones, Figs. 1 and 6 (neither shown). According to one aspect of the present invention electrical parameters representative of target range r and pulse repetition period p are compared in a multiplicity of fractional relationships each related to a different relationship between r and p at which the radar changes to a blind to a non-blind condition and vice versa, and an indication is given of the suitability or otherwise of a p for transmission or p is controlled; according to the second aspect of the invention an arrangement mutatis mutandis is provided in respect of p and target velocity v. Preferably both aspects are provided. In an embodiment resistors R A  ... R D , R F , R G , R H  correspond to the slopes of lines (A ... D, F, G, H, Fig. 1, not shown) on the r, p graph which represent boundaries of blind zones, are supplied from a voltage V R  representing a given range, and the currents therethrough are monitored by circuits incorporating transistors TR1A ... TR1H: corresponding voltage comparators 5A &c. are each arranged to produce a bi-stable output which changes state as the corresponding input voltage passes through a reference potential which is earth potential for comparators 5A ... FD and a voltage V s , corresponding to an "offset" range (see Fig. 1, not shown), for comparators 5E ... 5H. A sawtooth voltage, such that zero amplitude represents ap magnitude of zero and maximum amplitude represents maximum p magnitude, is applied to terminal T2. The outputs of the coparators are combined in logical circuit L, a "0" signal at the output terminal of which corresponds to the "non-blind" areas; such signal may be utilized to indicate the suitability or otherwise of given p's for a given r, or may control p automatically. In a modification there is a difference in the manner in which the voltages applied to the comparators 5A ... 5D, 5F, 5G, 5H are derived, Figs. 8, 9 (neither shown). A staircase waveform may replace the sawtooth.