baber/WOPTO huggingface dataset:
Patent GB-425303-A (GB)
Title: Improvements in regulators
IPC: G05D13/00
Filed: 1933-08-02
Abstract: 425,303. Fluid - actuated valves. SHORT & MASON, Ltd., Aneroid Works, Walthamstow, London.-(Taylor Instrument Cos. ; Rochester, New York, U.S.A.) Aug. 2, 1933, No. 21726. [Class 135] Valves controlled by pilot or relay valves.- Relates to a regulator of the kind in which a main valve is operated by a servomotor under the control of an auxiliary valve actuated directly by means sensitive to the conditions to be regulated, Fig. 2, or through a further auxiliary valve, Fig. 1. According to the invention, the means for actuating the auxiliary valve comprise two pressure sensitive elements of different sensitivity acting in the same direction, the response of the more sensitive element being delayed relative to that of the less sensitive element. In the form shown in Fig. 1, a temperature-sensitive bulb 12 acts through a Bourdon tube 10 on the baffle valve 14, 16 in the pressure-line 17, 17<a>, which is connected to diaphragms 20, 21 acting through a lever 25 on the stem of the auxiliary valve 22, permitting pressure from the pipe 17 to be applied to the servomotor 18 actuating the main valve 19. The delayed action of the more sensitive diaphragm 21 is produced by throttling its pressure-supply at 31 and connecting it to a reservoir 32. In the form shown in Fig. 2, the thermal feeler 40 is connected directly to the less sensitive diaphragm 43, which actuates the auxiliary valve 46 through the adjustable cam 44, thus permitting pressure to be admitted through a pipe 51 and a constriction 56 past a reservoir 57 to the more sensitive diaphragm 47, which is rigidly connected to the diaphragm 43. An equilibrium position of the valve 46 is thus obtained, and by means of a leak 46<a> the pressure in the pipe 51 is regulated and applied to a servomotor 54 which actuates the main valve 52.
Patent GB-1505103-A (GB)
Title: Semiconductor device having complementary transistors and method of manufacturing same
IPC: H01L27/00
Filed: 1975-05-21
Abstract: 1505103 Semiconductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 May 1975 [18 June 1974] 21807/75 Heading H1K At least two complementary bipolar transistors T1, T2 are formed in a body comprising two epitaxial layers 2, 3 of opposite type with the base zone of transistor T1 formed by at least a part of the lower layer 2, the base zone of transistor T2 formed by at least a part of the upper layer 3 and the collector of transistor T2 formed by at least a part of the lower layer 2. The transistor T1 has a zone 6 of the same type as layer 3 surrounding the epitaxial portions and constituting the collector or emitter region, and has a further zone 7 of the same type as the lower layer 2, but more highly doped, surrounding an emitter or collector region 8 and constituting a connection region to the base 2. In one embodiment, as shown, the epitaxial layers 2, 3 containing the complementary transistor structures are formed as insulated islands in a polysilicon substrate 1 with an outer barrier 5 of SiO 2 . The transistor regions are formed by diffusion or ion implantation and the islands are shaped in standard masking and etching steps while the epitaxial layers are held on a temporary handling substrate (Figs. 2, 3, not shown). The region 7 may also include a lateral portion within the layer 2 (Fig. 6, not shown). In other embodiments, the transistors are isolated by reverse bias PN junctions and there may be three epitaxial layers in which a thyristor structure is formed (Figs. 8, 15, not shown).
Patent GB-207845-A (GB)
Title: Improvements in tennis and similar rackets, in the strings used therein, and in a method of preparing the same
IPC: A63B51/02
Filed: 1922-08-10
Abstract: 207,845. Gallaudet, E. F. Aug. 10, 1922. Drawings to Specification. Rackets. - Strings for tennis and like rackets formed of silk or other fibrous material are stretched before being strung for use, and are coated with spar varnish or other waterproofing composition either before or after stringing. In, stretching the strings they are subjected to a tension which approximates to that under which they are to be used, and are then held under tension until they are strung. They are preferably stretched while in a damp condition, so that in the event of their becoming damp while in use, no further stretching will take place. The strings may be of plain twisted fibre or may have a twisted centre enclosed in a braided sheath. Tennis rackets may be waterproofed after string- ing by dipping the head of the racket, with the result that the strings are cemented together where they cross and the holes in the frame are filled with waterproofing composition.
Patent GB-920872-A (GB)
Title: Improvements in and relating to automatic vending machines
IPC: G07F11/30
Filed: 1959-06-26
Abstract: 920,872. Coin-freed vending machines. K. WIEGANDT, and W. WIEGANDT. June 26, 1959 [July 3, 1958], No. 21966/59. Class 27. A coin-controlled vending machine for dispensing relatively tall articles such as bottles comprises a sloping platform 12 supporting the bottles 1 in a number of parallel series, a belt conveyer 13 which is movable along the lower edge of the platform for conveying the bottles to a delivery hatch 7 and tiltable between a normal delivery position and one in which it is aligned with the platform to receive a row of bottles therefrom, and a pivoted control flap 30 which is actuated when there are no more bottles on the conveyer to cause the latter to tilt into its receiving position; the lowest row of bottles on the platform then slides partially on to the conveyer where it is stopped by the flap until the return tilting movement of the conveyer results in the flap being released to permit the row of bottles to slide completely on to the conveyer, a pivotal retaining bar 21 being provided for preventing the next lowermost series of bottles on the platform from toppling over. Upon each insertion of a coin, the conveyer is advanced a step to deliver a bottle to the hatch 7. When the last bottle on the conveyer has been delivered, the flap 30 is free to swing upwardly by the action of a spring 35 and in so doing closes a switch 34 to cause a motor to tilt the conveyer about the axis 15 into the position shown in the upper part of Fig. 2 for receiving a row of bottles from the platform 12. At the same time, linkage 26, 25, 24 is operated to swing the bar 21 upwardly from its normal retaining relation in relation to the upper parts of the bottles in the lowermost row on the platform. This row can then slide into a position in which the bottles are supported with their major portions on the conveyer by their engage. ment with the flap 30 which acts as a fixed stop by the contact of a bracket 32 thereon with a pin 33. The subsequent reverse operation of the conveyer-tilting motor effected, after a predetermined period, e.g. by a time-switch, results in the conveyer being tilted upwardly to block the delivery of further bottles from the platform as shown in the lower part of Fig. 2, the bracket 32 being freed from the pin 33 to release the flap 30 and permit the row of bottles to move completely on to the conveyer, and the linkage 26, 25, 24 swinging the bar 21 into its normal retaining position. The bottles on the conveyer are supported at their upper parts by a bar 41. The bars 21, 41 are adjustably mounted. As shown in Fig. 1, four platforms 12 are provided with a conveyer 13 adjacent the lower edge of each platform.
Patent GB-676376-A (GB)
Title: New polymerisable compounds and polymers thereof
IPC: C08F20/70
Filed: 1949-08-25
Abstract: Polymers and copolymers are prepared by polymerizing p-vinyl benzamide alone or in admixture with other monomers, e.g. styrene. The preparation of the p-vinyl benzamide is described (see Group IV (b)).  Cross-linking of the polymer may be effected by elimination of ammonia between amido groups on adjacent chains. Conversion into insoluble products may also be effected by reacting the polymer with formaldehyde or substances yielding it, e.g. by heating a mixture of the powdered polymer and paraformaldehyde, or by soaking foils, films or fibres in aqueous formaldehyde followed by baking.  Alternatively the formaldehyde treatment may be effected simultaneously with the polymerization, or preformed reaction products of p-vinylbenzamide and formaldehyde, such as N-methylol-p-vinyl benzamide may be polymerized alone or with other monomers and cross-linked by heating. In examples there are described the polymerization of p-vinylbenzamide; (3) by heating in a sealed tube; (4) in toluene solution; (5) and (6) in admixture with styrene, by heating in a sealed tube in solution with isopropylbenzene and benzoyl peroxide catalysts; (7) as an aqueous emulsion together with styrene, sodium stearate and ammonium sulphate.  Examples (8), (9) and (10) describe the hardening of the solid products of (5), (6) and (7) by soaking in formaldehyde solution followed by baking.  In example (11) there is polymerized an emulsion of p-vinyl-benzamide, styrene, aqueous sodium stearate, ammonium persulphate and formaldehyde.  In (12) a formaldehyde/p-vinyl-benzamide condensation product (N-methylol p-vinylbenzamide mainly) is emulsion copolymerized with styrene. In example (13) a styrene-p-vinylbenzamide copolymer is rendered insoluble by hot-milling with paraformaldehyde.  The polymers, previously soluble in, e.g. benzene, cresol, dimethylformamide, are rendered insoluble.  Other hardening agents mentioned are dimethylolurea, hexamethylol-melamine, phenol-aldehyde condensation products and hexamethoxymethyl-melamine.  In place of styrene as comonomer are mentioned diene hydrocarbons, ethyl acrylate, methacrylic esters, maleic anhydride, drying oils, e.g. linseed and tung oils and their fatty acids, oil-modified alkyd resins and polymerizable unsaturated alkyd resins.ALSO:The Specification comprises p-vinyl benzamide.  Examples describe its preparation by (1) the hydrolysis of p-cyanostyrene with aqueous sodium hydroxide and hydrogen peroxide; (2) the reaction of thionyl chloride with p-vinyl benzoic acid to form p-vinyl benzoyl chloride and th2 reaction of the latter with dry ammonia.  N-methylol p-vinyl benzamide is made (12) by reacting the p-vinyl benzamide with formaldehyde.  The amide and the methylol amide are used to prepare synthetic resins (see Group IV (a)).
Patent GB-1511929-A (GB)
Title: Rotary head assembly
IPC: G11B5/52
Filed: 1976-05-27
Abstract: 1511929 Rotary head assemblies SONY CORP 27 May 1976 [30 May 1975] 22124/76 Heading G5R A rotary transducer head assembly has a rotary drive means (12), (17), Fig. 1 (not shown), a support body 19, Fig. 4, coupled to rotate with the drive means and having a portion 19c extending substantially radially to the rotational axis, a recording/playback head member 20, and a plurality of parallel, resilient cantilevered support arms 21, extending substantially at right angles to a radius to the rotational axis and spaced apart in the direction of said radius, one end of each arm 21 being secured to portion 19c and the other end to head member 20 so that centrifugal movement of the head member 20 relative to the support 19 on rotation thereof is resiliently resisted by flexing of the arms 21. A helical scan video magnetic tape recorder has two such head assemblies (14), (14<SP>1</SP>) at diametrically opposite points on the upper rotary part (12) of a tape guide drum (10), with the magnetic head chips 25, Fig. 4, extending in the gap (13) between rotary part (12) and stationary drum part (11). Each clip 25 is mounted on a mounting plate 24 having slots (29), Fig. 3 (not shown), interlocked with slots (30) in said other ends of arms 21 the one ends of which are received in slots (28), Fig. 2 (not shown), in support portion 19c. Arms 21 may be formed of resinimprengated carbon fibres or metal spring material, and are secured to plate 24 and body 19 by expoxy resin. The arms 21 may extend from body 19 parallel to the rotational axis, Figs. 10 to 12 (not shown), or parallel to tangents to the circular path of head chip 25 and in the direction opposite to the rotational direction thereof, Figs. 4, 5. A damping member 31, Fig. 4, of butyl, silicon or sponge rubber may be secured in the position shown to damp low frequency radial vibrations of head member 20. In an alternative form, Fig. 5, member 20 is cantilevered from one leg 219c of a generally U-shaped support 219 and carries a member 35 having a channel 36 receiving a wire 34 extending between legs 219c, 219d of support 219, so that wire 34 becomes engaged with member 35 in response to an unexpectedly large centrifugal force to limit radially outward movement of head member 20 relative to support 219, member 35 also then damping low frequency radial vibrations. Each resilient arm 21 may be reinforced by an auxiliary resilient member formed by an undulating spring wire (39), Fig. 6 (not shown), attached at spaced apart locations along an edge of the arm 21. To facilitate lapping of the tape engaging face of the head chip 25, the mounting plate 24 may be provided with an opening (41), Figs. 13 to 15 (not shown), which can be engaged by a retractable member (42), threaded into rotary drum part (12), so as to project head chip 25 through the drum gap (13) from its normal position.
Patent GB-1087360-A (GB)
Title: Disposable hypodermic syringe
IPC: A61M5/31
Filed: 1965-05-25
Abstract: 1,087,360. Hypodermic syringes. HAUSTRUPS FABRIKER A.S. May 25, 1965 [June 16, 1964], No. 22172/65. Heading A5R. A syringe comprises a plunger 12 in a barrel 10 surrounded by a protective cover 14, the plunger, barrel and protective cover each being formed as a hollow cylinder with an open rear end and the rear ends of the cylinders being flush with one another and sealed together. The barrel has a central bore 18 at the front end which is closed by a pin 22 extending inwardly from the cover. The plunger extends into the barrel for the whole or a part of its length. The part of the barrel not occupied by the plunger may contain injection liquid. A case (Fig. 3, not shown) containing a hypodermic needle and comprising a cylinder open at the front end and closed at the rear end may. be located in the plunger, a rearwardly directed flange on the case being sealed to the rear ends of the plunger, barrel and cover. For use, the rear ends of the cylinders are cut adjacent the seal. The cover may be made of compressible material and be used as a piston rod or a separate piston rod may be provided. The parts are made of sheet metal, e.g. tin or polyolefins, e.g. polypropylene, polyesters or nylon.
Patent GB-1140611-A (GB)
Title: Improvements in and relating to tubular housing structures
Inventor: BRITTAIN FRANK EUSTACE
IPC: F16D65/28
Filed: 1966-05-19
Abstract: 1,140,611. Pneumatic brakes; cylinders, pistons. GIRLING Ltd. 11 May, 1967 [19 May, 1966], No. 22218/66. Headings F2F and F2T. Two parts 10, 12, Fig. 2, of a tubular housing (for a brake booster or servomotor) are held together by a ring 26 which encircles two flanges 14, 16 on the respective parts and is provided at one edge with abutment means (see below) engaging the outer face of one flange, and around its other edge with a number of spaced apart radially inwardly extending deformations (32, Fig. 1, not shown) arranged to pass through corresponding recesses (34) in the second flange during assembly, whereupon rotation of the ring relative to the housing locks the flanges together. The abutment means engaging the one flange may be either a similar set of deformations (32, Fig. 3, not shown) co-operating with corresponding recesses in the one flange, or a radially inwardly directed lip or series of tabs (42, Fig. 4, not shown). The bead 20 of a diaphragm is gripped between the flanges.
Patent GB-1381012-A (GB)
Title: Process for the preparation of alphasubstituted epoxide compounds
IPC: C07D303/32
Filed: 1972-05-11
Abstract: 1381012 Preparation of α-substituted epoxides SNAM PROGETTI SpA 11 May 1972 [13 May 1971] 22235/72 Heading C2C α-Substituted epoxides of formula wherein X is a group selected from -COR<SP>4</SP>, -CN, -COOR<SP>4</SP>, phenyl, substituted phenyl and vinyl and R<SP>1</SP> to R<SP>4</SP>, which may be the same or different, are hydrogen atoms or optionally substituted alkyl, cycloalkyl or aromatic radicals containing up to 12 C atoms, are prepared by oxidizing a #-substituted alcohol in the liquid phase and of formula with molecular oxygen in the presence of a Cu<SP>I</SP> compound as catalyst. Preferred catalysts are compounds of the formulµ CuX<SP>1</SP> and CuX<SP>1</SP>L n  wherein X<SP>1</SP> is Cl-, Br-, I-, F-, CN-, CH 3 OCO-, an enolate, NO 3 <SP>-</SP> or ClO 4 <SP>-</SP>, n is an integer from 1 to 6 and L is a co-ordinating base selected from unsubstituted or substituted phenanthrolines, dipyridyls, pyridines, dimethylsulphoxide, dimethylformamide, phosphines, arsines, stibines, imidazole and piperidine. The reaction, which is usually effected at 15-150‹ C. and 1-30 atmospheres absolute pressure, may be carried out in the presence of a solvent, other than the alcohol reactant, which is an optionally substituted aliphatic, cycloaliphatic, or aromatic hydrocarbon, an ether, or the co-ordinating base, L. The example describes the preparation of the epoxide wherein X is -CO-CH 3 , R<SP>1</SP> and R<SP>2</SP> are each -CH 3  and R<SP>3</SP> is -H by the oxidation of 2-acetonyl-isopropanol.
Patent GB-243119-A (GB)
Title: A shock absorbing device
IPC: B60G11/14
Filed: 1924-09-22
Abstract: 243,119. Carter, W. A. Sept. 22, 1924.. Buffers. - A shock-absorbing device for supporting a weight W consists of two pairs of parallel links B, D and C, E connected by a spring device g, h, which holds the links in the position shown, unless the device is subjected to shock, when it yields and allows the parts F, G to separate. The links C, D cross one another at their centres and wheels H, I, or slides, facilitate movement of the parts. Two such devices may be combined by the use of two additional links pivoted at the points c, f of the two devices, arranged to cross one another and be parallel to the adjacent links, and having their upper ends pivoted to runners or slides on the member A and held together by a spring device such as g, h.
Patent GB-301343-A (GB)
Title: Improvements in or relating to the jointing of flanged structures
IPC: B64D37/02
Filed: 1927-08-24
Abstract: 301,343. Airship Guarantee Co., Ltd., and Wallis, B. N. Aug. 24, 1927. Bolting.-In a bolted joint for flanged structures, a stiffening member or members is introduced between either or both of the flanges and the bolt head or nut. In the form shown in Fig. 3, for bolting together the flanges 1, 2 of the tank described in Specification 301,347, [Class 69 (i), Hydraulic apparatus &c.], the bolt 3 is slotted to pass over the stiffening members 4, slotted ferrules 6 are provided, and a pellet 7 is inserted in the bolt slot before the nut is screwed on. In a modification, the stiffening members have flanges 8, Fig. 4, and a connecting web 9.
Patent GB-649477-A (GB)
Title: Improvements in or relating to mixing machines
IPC: A21C1/02
Filed: 1948-08-26
Abstract: 649,477. Mixing appliances. CRUICKSHANK, Ltd., J., and GALLIMORE, F. W. Aug. 26, 1948, No. 22494. [Class 86] A mixing machine comprises a stationary container detachably supported in a vertically adjustable yoke which may be raised by means of hydraulic lifting mechanism mounted on a fixed part of the machine to lift the container into the mixing position. A hydraulic cylinder 13 is connected by a supply pipe 16 and control valve mechanism 17 to the fluid circulating system 18 of a continuously driven pump 19 whereby the lifting ram 15 is urged against the platform 10a of a container carrier 10 which slides vertically between fixed vertical guides 12. The pump 19 may be driven from the pulley of the motor 23 which also drives the stirring gear, or may be connected to the transmission gearing between the driving motor and the stirring gear. or may be driven by a separate motor. The container may be lowered at a predetermined rate by means of an adjustable release valve incorporated in the valve mechanism 17. Specification 592,999 is referred to.
Patent GB-531844-A (GB)
Title: Improvements in means for illumination comprising both an electric discharge device and an incandescent filament
IPC: H01J61/96
Filed: 1939-08-03
Abstract: 531,844. Discharge tamps. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Electrische Gluhlampen.). Aug. 3, 1939, No. 22538. Addition to 485,954.. [Class 39 (i)] In a lamp as described in the parent Specification, an electrode of the discharge device is heated independently of the discharge by connecting the electrode or an indirectly heating element therefore in series with the parallel connected filament. A thermally operated switch or a resistor whose conductivity rises rapidly with temperature may be connected across the electrode or its heating element, so that the heating of the electrode ceases when the full operating condition of the discharge device is attained.
Patent GB-1381934-A (GB)
Title: Portland cement composition and method of manufacture
IPC: C04B28/04
Filed: 1972-05-15
Abstract: 1381934 Cements RESEARCH CORP 15 May 1972 [14 June 1971] 22694/72 Addition to 1280655 Heading C1H A freely-workable expanding cement paste is obtained by grinding cement clinker with at least 0À0005 parts by wt. grinding aid to 6000- 9000 cm.<SP>2</SP>/g., mixing with at least 0À0025 parts by wt. sulphonated lignin, alkali metal lignosulphonate or alkaline earth lignosulphonate and then with more than 0À20 but not more than 0À28 parts by wt. (0À20-0À28 in the case of sulphonated lignin) of water containing at least 0À0025 parts by wt. alkali metal carbonate, all parts being per part by wt. of ground cement. The term "alkali metal" includes "ammonium". The invention may also include the dry powdered mixture of cement, sulphonated lignin and alkali metal carbonate. In the case of alkaline earth metal lignolulphonates, they may also be mixed prior to or during grinding of the cement clinker or be dissolved in the water containing the carbonate prior to mixing with the ground cement. The grinding aids may be a surfactant, e.g. diethyl carbonate, polyglycol derivatives, alkyl ammonium salt, triethanol amine, alkylphenol sulphonate and ethylene glycol. In the examples 0À50-1À50% lignosulphonate, 0À05% to 0À2% grinding aid and 0À5-1À5% carbonate is used.
Patent GB-1079858-A (GB)
Title: Linkage system for facilitating folding of a curtain, folding wall, or the like
IPC: A47H5/00
Filed: 1963-06-07
Abstract: 1,079,858. Suspending curtains. W. E. ALGIE. June 8, 1964 [June 7, 1963], No. 22725/63. Heading A4B. [Also in Division E1] Curtains 49 or folding walls are supported by a set of interconnected zig-zag links 2, 3 slidably suspended from a track 15 in such manner that as the curtain 49 is moved to its open position towards a jamb 5 adjacent pairs of links 2, 3 collapse successively in the region of the jamb 5 whereby the part 53 of the curtain 49 in the region of the jamb 5 is folded progressively while the remaining part 52 retains its unfolded condition. Each link 2 is pivoted, as at 56, 57, to links 3 on each side thereof and in the extended position the links 2, 3 are locked against relative rotation by engagement of the cammed free end 7 of one link 3 in a groove 35 provided in a locking member 4 pivoted, as at 29, to the other link 2. When the curtain is opened, e.g. by pressure at the free edge 51 of the curtain, the end link 58 is rotated by engagement with the jamb 5 abouts its end remote from the jamb whereby the inner end 43 of the link 58 engages the free end 32 of a locking member 4 to rotate the latter and free the next link 3 whereby the links 2, 3 are successively collapsed as they approach the jamb. Curtain hanging rings (20) (Fig. 6) releasably engage a collar at the track supported end of each link 2.