baber/WOPTO huggingface dataset:
Patent GB-1167366-A (GB)
Title: Oscillation Generator Embodying Differential Amplifier Pairs
Inventor: PERRY KENNETH EARL
IPC: H03K3/0231
Filed: 1966-11-01
Abstract: 1,167,366. Measuring temperature electrically; resistance measurement. E.G. & G. INTERNATIONAL Inc. Nov.1, 1966, No.48932/66. Headings G1N and G1U. [Also in Division H3] An oscillator suitable for use in determining the resistance of a thermistor and thus its ambient temperature comprises two differential switching pairs, shown as transistors Q1, Q2 and Q1', Q2', having the output Q1, Q2 connected to the input of Q1', Q2' and with an R, C circuit coupling the output terminals of Q'1, Q'2 to one input Q1 of Q1, Q2. The resistance is switchable between two valves e.g. that of a thermistor TH and a reference resistance TH, to vary the frequency so that the frequency change represents the difference of resistance and this the difference of temperature. In operation, when Q1 becomes conducting a positive edge is applied through C to the line of Q1 (see edge I) to switch over the circuit. The capacitor C then discharges through TH or REF (see waveform portion II) until the voltage is such that Q1 is rendered non-conductive. The states of the transistors therefore reverse producing edge I' and discharge slope II. Thus the circuit oscillates. The capacitor and resistors are regarded as providing positive and negative feedback. A reference level is applied to the base of Q2 equal to the mean of the collector voltages of Q1' and Q2'.
Patent GB-1367618-A (GB)
Title: Heat exchanger
IPC: F28D17/00
Filed: 1971-10-21
Abstract: 1367618 Regenerators; cold accumulators U S PHILIPS CORP 21 Oct 1971 48948/71 Headings F4K and F4H A regenerator, particularly for use in cold-gas refrigerators, comprises a housing 1 filled with a mass of spherical heat storage elements 2 consisting of hollow carbon spheres having gaspermeable walls and filled with helium. The spheres have an outer diameter in the range 5-150 Á and a wall thickness of between 1 and 2 Á. In the manufacture of the regenerator, the spheres are simultaneously evacuated and then exposed to a helium atmosphere, helium gas diffusing through the permeable walls into the cavities in the spheres and being retained therein; the hollow spheres are heated during evacuation. The regenerator is closed at either end by coverplates 3 provided with apertures (not shown) for the inlet and outlet of medium which flows through the regenerator.
Patent GB-1306607-A (GB)
Title: Methods of making colour phosphor screens of colour picture tubes
IPC: H01J9/227
Filed: 1970-10-16
Abstract: 1306607 Luminescent screens NIPPON COLUMBIA KK 16 Oct 1970 [29 Oct 1969 1 Nov 1969] 49261/70 Heading H1D In a method of making a multi-dot colour television screen with opaque areas between the dots, a photo-sensitive layer on the faceplate is exposed through a shadow mask and developed to form temporary dots, which are contracted chemically so that the dots are smaller than the corresponding apertures in the shadow mask, an opaque layer is definited over the exposed faceplate and over the temporary dots, the latter are removed with the overlying portions, and colour phosphor dots are applied to the areas thus exposed. In one example the photo-sensitive layer comprises a solution of ammonium dichromate and polyvinyl alcohol, and after the developing process the wet temporary dots are treated with a 3% ammonium sulphate solution and dried, thereby reducing their diameters by 25-30%. The  dots are then hardend by heat treatment or by treatment with a solution of ammonium sulphate and ammonium dichromate followed by irradiation by light or by electrons.
Patent GB-1015050-A (GB)
Title: Improvements in or relating to swash plate type variable displacement hydraulic pumps or motors
IPC: F01B3/10
Filed: 1963-12-13
Abstract: 1,015,050. Reciprocating motors and pumps. G. A. WAHLMARK. Dec. 13, 1963, No. 49297/63. Heading F1A. A variable displacement motor or pump, e.g. driven by a turbine, comprises a cylinder block 100 rotatably mounted on a valve plate 62 which slidably engages an arcuate housing face 71 for angular adjustment of the block and valve plate assembly relative to a drive shaft 11, hydraulic balancing being such that the block and valve plate are biased towards the housing face. In the Figs 2 and 4 embodiment, valve plate 62 is supported in housing tracks 69 by balls 63 lubricated by the inlet or outlet kidney ports 80, 81 through passages 85. Balls 63 may be mounted in housing face bores 74, Fig. 5, with shims 75 to take up sideways play in the valve plate. Spring washers on block support spindle 66 effect initial biasing of the block. In the Fig. 7 embodiment, initial biasing of the valve plate is effected by spring assemblies 415, and the valve plate is slidably located on the housing by a key 367 slidable in a keyway 369. Tilting of the block and valve plate assembly is effected by a piston and cylinder 59 positioned centrally or offset. The block and valve plate assembly may be tiltable about an axis above or below the drive shaft axis, so as to be biased towards either the maximum or minimum displacement positions, the tilting range also being sufficient to effect reversal of flow. Hydraulic biasing between the block and valve plate assembly and the housing is achieved by suitable dimensioning of lands 109, 113 and the cylinder ports. For synchronized rotation, block 100 has a ring gear 146 engaging teeth 147 in drive shaft flange 140. The thrust bearing assembly 165, Fig. 2, between the drive flange and the housing, comprises a spider with radial slots housing roller bearings 167 and ball bearings 182 held in place by a press fitted ring.
Patent GB-1392632-A (GB)
Title: Styli
IPC: G11B3/44
Filed: 1972-10-26
Abstract: 1392632 Recording and playback EMI Ltd 19 Oct 1973 [26 Oct 1972] 49329/72 Heading G5R A stylus, for capacitative playback of topographical grooved records, comprises an electrical conductor 7 extending between and insulated from two electrically conductive screening members 3, 4. As shown, successive layers of metal 3, 4 and dielectric material 5, 6, e.g. quartz or glass, are deposited on the flat surfaces of two sapphire half-stylus parts 1, 2, a metal probe 7 is formed on one dielectric layer 5 and the two parts are joined together.
Patent GB-1451096-A (GB)
Title: Semiconductor devices
IPC: H01L21/00
Filed: 1973-10-23
Abstract: 1451096 IGFETS HITACHI Ltd 23 Oct 1973 [7 Feb 1973] 49363/73 Heading H1K In an IGFET, a drain region 10 of high impurity concentration (e.g. 10<SP>19</SP>-10<SP>20</SP> atoms/ cm.<SP>3</SP>) is formed in a region 8 of the same conductivity type and of lower impurity concentration (e.g. 10<SP>16</SP>-10<SP>17</SP> atoms/cm.<SP>3</SP>), and the gate electrode 16 overlaps region 8 but not drain region 10. As shown, the transistor is formed in a substrate 1 of N-type Si (10<SP>15</SP>-10<SP>16</SP> atoms/ cm.<SP>3</SP>) and within a guard ring 3 diffused with phosphorus atoms to 2-6 Î 10<SP>16</SP> atoms/cm.<SP>3</SP>. After surface oxidation and photo-etched maskformation, boron ions are implanted into the surface of substrate 1 and are subsequently indiffused to form region 8. Thereafter, a source region 9 and the drain region 10 are formed by boron diffusion. Oxide is then removed from above the channel region and a thin gate oxide layer 11 formed thereon. Aluminium is applied by evaporation and selectively etched to form source and gate contacts 12 and gate electrode 16. Finally, a protective layer 13 of phosphosilicate glass is applied overall. In a modification (Fig. 4, not shown) source region 9 also is formed in a region (17) of lower impurity concentration similar to region 8, and the gate electrode 16 overlaps the additional region (17) but not the source region 9. In a second embodiment (Fig. 2h, not shown) the gate electrode is constituted by a P-type polycrystalline Si layer (14), and glass layer 13 is applied before metallization, a second glass layer (15) being applied overall thereafter.
Patent GB-1302688-A (GB)
IPC: H03C3/22
Filed: 1970-10-21
Abstract: 1302688 Treating films FUJI PHOTO FILM CO Ltd 21 Oct 1970 [22 Oct 1969] 50070/70 Heading B5B [Also in Division B2] Process for treating hydrophobic surfaces of films useful in preparing photographic material to render them hydrophilic comprises subjecting the surfaces to a radio frequency electrodeless discharge at a frequency higher than 1 MHz. The treatment involves activating a stream of gas (e.g. helium or oxygen) by subjecting it to a radio frequency electromagnetic field, preferably at a frequency of 5 to 20 MHz., and treating the support with the activated gas under reduced pressure. The treatment renders the film more receptive to coatings of photographic emulsion. In examples biaxially oriented polyethylene terephthalate films (1 and 2) are subjected to the electrodeless discharge treatment at 13À65 MHz. and under reduced gas pressure and the hydrophilic films thus produced are coated with an aqueous-gelatine undercoating solution, dried at 120‹ C. and then further coated with a gelatinesilver halide emulsion; polyethylene terephthalate film (Example 4) is subjected to U.V. irradiation prior to being treated with the electrodeless discharge and coated as above; and a cellulose acetate film is coated with a gelatine undercoating solution, dried, subjected to an electrodeless discharge and then coated with a gelatine-silver halide photographic emulsion (Examples 5 and 7). The treatment of polyethylene coated paper is also exemplified.
Patent GB-1450614-A (GB)
Title: Process for the recovery of bacitracin
IPC: C07K7/58
Filed: 1974-11-19
Abstract: 1450614 Separation of zinc bacitracin IMC CHEMICAL GROUP Inc 19 Nov 1974 [20 Dec 1973] 50080/74 Heading C3H A process for the separation of zinc bacitracin from a liquid slurry containing it comprises heating the slurry to 45 to 60 C. and allowing it to cool to below 40 C. before separating the zinc bacitracin by decantation, filtration or centrifugation. Heating may be carried out for a period of 1 to 5 minutes.
Patent GB-1101278-A (GB)
Title: Improvements in or relating to electrode cooling arrangements in electric discharge tubes
IPC: H01J19/74
Filed: 1965-11-25
Abstract: 1,101,278. Cooling discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 Nov., 1965 [28 Nov., 1964], No. 50161/65. Heading HID. In an arrangement for cooling a discharge tube electrode 2, which forms part of the tube wall, and has on its outer surface a number of parallel grooves 3 surrounded by a cylindrical jacket 4, coolant is both supplied and conducted away near the closed end of the electrode, and a coolant distributing body 7 is provided so that some of the grooves 3 are traversed by the forward flow, and some by the return flow, of coolant. The grooves may extend axially, but as shown, external anode 2 is formed with forty-eight parallel helical grooves which open into a space above distributing body 7, which body is formed with four ridges 10 contacting the closed end 6 of anode 2, so that alternate groups of six grooves communicate with coolant inlet 8, while the ridges 10 provide a barrier between the remaining grooves and inlet 8, these grooves communicating with coolant outlet 17 via recesses in ridges 10. Alternatively, fewer grooves may be used for the return flow than for the forward flow of the coolant which may be liquid or gas.
Patent GB-1116468-A (GB)
Title: Dried cake mix
IPC: A21D2/14
Filed: 1966-11-14
Abstract: A cheese cake mix suitable for use as a filling in cracker shells to make cheese cakes, comprises a coagulable protein (e.g. casein, whole milk powder, skim milk powder and soy protein) and an acidogen (e.g. glucono-delta-lactone) which is hydrolysable in water or milk to slowly release an edible acid, the acidogen being present in a sufficient amount to effect coagulation of the protein when the mix is mixed with water or milk and baked.  The mix may comprise acids such as citric, lactic and fumaric acid, protein such as milk serum protein and egg albumen and flavours such as chocolate, vanilla, lemon, strawberry and banana.  In the Examples the mixes comprise skim milk powder, flour, corn starch, sugar, salt, gelatin, glucono-delta-lactone, lemon powder and optionally whole milk powder. The mixes may be mixed with water, vanilla, egg yolk and white, margarine and sugar and baked.
Patent GB-1166056-A (GB)
Title: A Process and Apparatus for the Continuous Production of Voluminous Powder Agglomerates
Inventor: PFRENGLE OTTO
IPC: B01F29/63
Filed: 1966-11-16
Abstract: 1,166,056. Agglomerating powders. O. PFRENGLE. 16 Nov., 1966 [26 Nov., 1965], No. 51382/66. Heading B5A. Voluminous power agglomerates, e.g. domestic detergents are continuously produced from a powder feed, e.g. from a powder blending feed extruded at a, into one end of a cylindrical, or frusto conical, drum which has a ratio of axial length to diameter, or mean diameter, of between 3 : 1 and 1À1 : 1, which is rotated at 6 to 60 r.p.m. and is provided with spray jets c, d in the inlet end of the drum and inclined downwardly toward the lower generatrix of the drum; the drum is filled by the powder to 25% or less of the capacity thereof, and agglomerates continuously spill over a dam ring g at the outlet end thereof which is of a height between <SP>1</SP>/ 40  and <SP>1</SP>/ 4  of the diameter or mean diameter of the drum. The particles are discharged from the drum to a sieving device or to a vertical pipe h wherein larger particles fall into a lock k and lightweight particles are raised by a fan i for cyclone separation and recycling to the drum. The drum may comprise a zone at the outlet end thereof defined between a dam e and the dam g and containing guide vanes f on the drum wall and into which dry power, e.g. voluminous sodium biphosphate, sodium triphosphate, magnesium silicate with detergents, or metal stearates for other than detergent compositions, may be fed by a screw d. The agglomerating drum may be without guide elements on the wall thereof and may be provided with a spring-pressed wall scraper. The lower generatrix of the drum may be horizontal or, preferably, inclined up to 10 degrees, e.g. 7¥ degrees with a cylindrical drum and movement of the powder towards the discharge end of the drum is assisted by the force of the liquid jets. In a frusto-conical drum with a horizontal axis, the spray jets are installed at the smaller end or alternatively, with the lower generatrix thereof inclined at 2 degrees, the spray jets, powder inlet and air exhaust are arranged at the large diameter end. The spraying of highly viscous liquids and slurries may be effected by compressed air jets and high pressure hydraulic pressure mixing jets may be used, or preferably, air pressure mixing jets may be employed, e.g. with air under pressure supplied from the outer of three concentric orifices from each of the inner whereof is supplied one liquid; hot air or steam may be employed. A swinging scraper, which is stationary during drum rotation, may be employed at the outlet end of the drum to complete emptying thereof after production.
Patent GB-1462680-A (GB)
Title: Apparatus  for applying labels
IPC: B65B63/02
Filed: 1974-11-27
Abstract: 1462680 Apparatus for processing crushed refuse A KACZMAREK 27 Nov 1974 51481/74 Heading B8C Apparatus 27 for processing refuse comprises a chamber 28 having an inlet, an outlet, a curved flow path for refuse therebetween, and a rotatable shaft 33 extending across the flow path the chamber 28 having a wall 52 in the region of the shaft 33 which is arcuate and leads tangentially to a lower surface 51 of the outlet, the lower surface being situated below the shaft 33, a plurality of identical compression plates 34 extending radially from said shaft in an angularly displaced relationship, each compression plate having two leading edges 67, 68 and two trailing edges 67, 68 each leading edge being smoothly curved and joining one respective trailing edge at an apex 71, 69, each plate 34 having a length longer than its width, and a plurality of stripper fingers 36 situated adjacent the outlet, one stripper finger being situated between a pair of compression plates in close proximity thereto. As shown, refuse, introduced into a funnel 19, falls into a knife box 14 which contains two counter-rotatable shafts 21, 22 which are reversible in case of overload, are driven by an electric motor 17 and gear-box 16, and carry co-operating crushing knives 23, 24 which deliver crushed refuse, at 26, into the inlet funnel 28 of the processing apparatus 27. The inlet funnel 28 is joined to an outlet shoot 29 which has the curved back wall 52 of quarter-cylindrical shape which corresponds with the circle 72 described by the apices 69, 71 of the plates 34 to form an annular passage below the refuse delivery at 26. The stripper fingers 36 are supported on the front wall 54 which has  stiffening gussets 58 welded thereto. The plates 34, are preferably seventeen in number preferably having an angle difference of approximately 10 between plates. Reversal of the shaft 33 causes refuse to be scraped from the outlet shoot 29 into the inlet funnel 28 to relieve pressure in the outlet 46. The latter, which is from one third to one half of the cross-sectional area of the inlet funnel 28, is connected either to a long, high resistance, duct 37, Fig. 1, leading to a refuse container, not shown, or to a container 38, Fig. 3. The electric motor 17, and an electric motor 31, which drives the shaft 33 through reduction gearing, are preferably reversed at the same time.
Patent GB-1200113-A (GB)
Title: A device for packing a predetermined quantity of articles into a box
Inventor: SOL CORNELIS
IPC: B65B19/26
Filed: 1967-11-13
Abstract: 1,200,113. Packing batches of articles into boxes. TECHNISCHE BUREAU VAN DER MOLEN. 13 Nov., 1967 [12 April, 1967], No. 51553/67. Heading B8C. A batch of cigars 9 entrains (Fig. 7) a length 21 of wrapping material (cut from a roll) as the batch is moved from conveyer members 15 and 16 into a box 24 by a pusher 11. The batch is pressed vertically downwards into the box 24 by a presser (26), Fig. 8 (not shown). A second batch of cigars may be laid on the first, the length 21 then being longer. Opening hinged lids of boxes: checking lids are open.-The lid 25 (Fig. 12) of a box 24 is opened by a member 34 moving in the path Z, and the hinge is then broken by a linkage 38, 39 which can be adjusted at 40. A feeler (not described in detail) checks that the lids are open. The boxes are then conveyed with the tray and lid portions supported in inclined position by stops 32, 33 to a filling station. Assembling cigars and inserting in box.- Cigars 9 (Fig. 4) are delivered by a belt- or ropeconveyer 12 on to stationary reciprocable conveyer tapes or ropes 15, 16 until a photo-cell (14) (Fig. 3, not shown) is obscured by the leading cigar. A stop 13 is then swung down to hold back the cigars on the conveyer 12 while the tapes 15, 16 are released at their lefthand ends from a tension device by the photo-cell (14) so as to move to the right thus drawing the ten foremost cigars against a stop guide 10. The pusher 11 then moves the batch of eight cigars between the guides 10, 17 under lateral compression, leaving behind two cigars which serve as a guide for the rest, into the inclined tray 24 of a box, the batch entraining the wrapper length 21 as it does so. The wrapping length 21 is previously cut to length and its end is secured by a clamp 20 which permits some slip during packing of the batch. The guide 10 is cut away so that the open box may proceed along the device to a box closing station where the ends of the wrapping length are folded over the cigars and the lid 25 is then closed. A tangential air jet (18) (Fig. 5, not shown) prevents the cigars rotating as they are fed by the tapes 15, 16. When two layers of cigars are to be packed into a box, alternate deliveries of empty boxes from a store are prevented as shown in Figs. 14-16 (not shown). A pivoted two-armed lever (44), (46) forming part of the mechanism for moving boxes from the store, normally raised at one end by a rotated eccentric (48) is prevented from falling in alternate cycles by blocking engagement of the plunger (50) of a solenoid (49) with its other end.
Patent GB-1384047-A (GB)
IPC: B60B33/00
Filed: 1970-10-30
Abstract: 1384047 Feet for furniture LSD WOODTURNING 19 Jan 1972 [30 Oct 1970] 51602/70 Heading A4U A leg for an article of furniture comprises a hollow moulded plastics body member A connected by radial webs E to an integral central sleeve D, the stem K of a caster being retained in the lower end of the sleeve by a lug M, and a stud G, having a threaded end J for securing to the article, being fixed in the upper end of the sleeve. The end H of the stud G is formed as a wood screw and cuts its own thread in internal splines (F) in the sleeve. In a modification a closure disc for the open upper end of the body is screwed on to the threaded upper end of the stud which is welded or screwed into a tubular sleeve passing through an aperture in the closed lower end of the body and retained by flanging or beading against a washer located in a recess surrounding the aperture. In further modifications a ground engaging foot replaces the caster or a plug, replacing the disc, is push-fitted or glued in the hollow body which may contain filler material, such as foamed plastics.
Patent GB-1254614-A (GB)
Title: Improvements in or relating to the extraction of germine
Inventor: KUPCHAN SOLOMON MORRIS
IPC: C07D491/18
Filed: 1969-10-22
Abstract: 1,254,614. Extracting germine. S. M. KUPCHAN. 22 Oct., 1969 [28 Oct., 1968], No. 51807/69. Heading A5B. [Also in Division C2] An adduct of germine and a halogenated hydrocarbon is prepared by subjecting germine values substantially free from protoveratrine (e.g. extracted from a plant of the genus veratrum) to hydrolysis in a basic system and treating the thus-obtained hydrolysate with a liquid, water-immiscible halogenated hydrocarbon (e.g. methylene chloride, CHCl 3 , CCl 4 , CHCl 2 . CH 3  or CH 2 Cl. CH 2 Cl) in the presence of water to give an insoluble adduct which may be collected and decomposed, e.g. by treatment with an alcohol (e.g. an alkanol) and, optionally, an acid to yield free germine. The hydrolysing system preferably comprises an alcohol (e.g. a lower alkanol) and an alkali metal hydroxide.
Patent GB-1069140-A (GB)
Title: Improvements in or relating to processes for the production of microcapsules
IPC: B01J13/18
Filed: 1964-12-22
Abstract: Microcapsules comprising a polar solvent solution enclosed in a substantially hydrophobic shell are prepared by forming a dispersion of microcapsules of polar solvent solution in a hydrophilic shell in an external phase which is a solution of a hydrophobic monomeric and/or polymeric material in a non-polar solvent and subjecting the hydrophilic polymer to irradiation thereby to cause the hydrophobic monomer and/or polymer to form a hydrophobic polymer wall around the capsules.  Specified hydrophilic polymers include agar agar, alginic acid and alginates, casein, starch, locust bean gum and polyvinyl alcohol. Specified hydrophobic monomers include styrene, styrenated oils, chloroprene, isoprene, unsaturated fats, long chain vinyl ethers, vinyl toluene, ethylene and butadiene.  Specified hydrophobic polymers include polymers derived from the above monomers and copolymers thereof, natural and synthetic rubbers, regenerated cellulose and cellulose derivatives and fluorinated ethylene polymers.  The hydrophilic polymer-coated capsules may be preformed and irradiated prior to addition to the non-polar solvent solution of hydrophobic polymer or a polar solvent solution of the material to be encapsulated and of the hydrophilic polymer may be dispersed in the non-polar solvent solution, the dispersion coated on to a substrate and irradiated to form the microcapsules in situ.ALSO:Paper and Mylar (Registered Trade Mark) are coated with an emulsion consisting essentially of an aqueous solution of casein in a non-polar solvent solution of polybutene and benzyl cellulose and the coating is irradiated to produce a layer comprising microcapsules with an aqueous core, a casein inner coating and a polybutene / benzyl cellulose outer coating.