baber/WOPTO huggingface dataset:
Patent GB-1051236-A (GB)
IPC: B65G1/07
Abstract: 1,051,236. Counterbalancing. UNITED SERVICE EQUIPMENT CO. Inc. Aug. 20, 1965, No. 36941/65. Heading B8B. A storage and dispensing apparatus for a stack of trays 20 comprises an elevating mechanism having two pairs of spaced vertically extending guides 21, 22 converging upwardly and two horizontal support members 33 movable by rollers along the guides and supporting a horizontal platform 39 for the trays 20, the members 33 being biased upwardly by interconnecting tension springs 35 calibrated to produce an upward force on the members 33 equal to the downward force produced thereon by the weight of the trays 20, so as to hold the uppermost tray 20d in a predetermined vertical position ready for dispensing, regardless of the number of trays on the platform 39. The guides 21, 22 bolted at top and bottom to members 28, 12 may have their angles of convergence adjusted by use of alternative bolt holes 23, 29. The platform 39 is mounted on flanged rollers on the members 33, which flanges locate the platform along the length of the members 33 vertically spaced rollers 42, 43 mounted on the sides of the platform engage guides 44 which permit only vertical motion of the platform 39. In a further embodiment (not shown) the guides 21, 22 converge downwardly and compression springs replace the tension springs. The whole elevator mechanism is mounted in a casing with a top surface dispensing aperture and the casing is mounted on castors, Fig. 1 (not shown).
Patent GB-1051641-A (GB)
IPC: G01N21/64
Abstract: 1,051,641. Measuring thickness of liquid films. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. March 25, 1965 [Jan. 3, 1964], No. 435/64. Heading G1A. The thickness of a liquid film, for example, the film of water occurring around the inner surface of a boiler tube is measured by exciting fluorescence in the liquid, separating part of the fluorescent radiation from the exciting radiation (e.g. that part of the radiation causing fluorescence which is reflected from path objects &c) and measuring the intensity of the separated part. Apparatus for carrying out such a method comprises a mercury tube source producing blue light, which is passed through a filter 3, reflecting prisms 4 or 7, which have mounted between them irises 5, 6, and a half silvered plate 8, to be focussed at the centre of the tube 11 carrying the liquid film 12, by a microscope objective lens system 9, 10. The tube is coated with an opaque covering to prevent extraneous light producing fluorescence, except for a window area 13 which is ground flat. The water of the film contains dissolved fluorescein or such a fluorescing substance which does not alter the properties (e.g. surface tension) of the water. The fluorescent light produced (having blue, green and red components) can be examined after transmission through the liquid or backscattering from it. In the particular embodiment, the fluorescent light and any exciting radiation reflected by lenses, tube &c or e.g. transmitted through the tube is attenuated by diaphragm 14 and the green component of the fluorescent light passed by a spectrometer 15 to the detector, a photo-multiplier 16. A measure of the intensity of the light reaching the detector is given by a microammeter 17 or a record can be produced by an oscilloscope 19 and camera 20. The apparatus is calibrated using a special liquid container Figs. 3-6 (not shown) in which known thicknesses of liquid can be produced. Records can be produced showing the variations of film thickness with time, giving indications of the general constant order of thickness, besides variations due to ripples and waves in the liquid.
Patent GB-1143800-A (GB)
IPC: C07C51/50
Abstract: 1,143,800. Preventing caking of adipic acid. E. I. DU PONT DE NEMOURS & CO. 20 June, 1967 [23 June, 1966], No. 28423/67. Heading C2C. Adipic acid is prevented from caking by mixing with 25-200 p.p.m. of a C 10-22  acyclic saturated monobasic acid or a C 10-14  acyclic saturated dibasic acid. Preferred additives are 1,12 - dodecanedioic acid, lauric acid and stearic acid, the latter being suitable in its commercially-produced form. The anticaking agent may be added as an aqueous slurry emulsified by a trace amount of an emulsifier comprising an inorganic cation which is capable of ionizing the anti-caking agent, e.g. Ca<SP>2</SP> <SP>+</SP>, Na<SP>+</SP> or preferably NH 4 <SP>+</SP>.
Patent GB-1226468-A (GB)
IPC: C07C409/38
Filed: 1969-05-02
Abstract: 1,226,468. Preparation of peresters. NOVOKUIBYSHEVSKY FILIAL NAUCHNO ISSLEDOVATELSKOGO INSTITUTA SINTETICHESKIKH SPIRTOV I ORGANICHESKIKH PRODUKTOV. 2 May, 1969, No. 22430/69. Heading C2C. Organic peresters are prepared by reacting an organic hydroperoxide with an organic acid of the general formula RCOOH where R is an aliphatic or aromatic radical, in the presence of a mineral acid or cation exchanger catalyst. The acid catalyst is preferably sulphuric, perchloric or hydrochloric acid. The presence of a water-absorbing agent, such as boric anhydride, anhydrous magnesium or sodium sulphate or calcium chloride is advantageous. The reaction is preferably performed at 0- 100‹ C., optionally in the presence of an organic solvent. In the examples tert-butyl hydroperoxide is reacted with acetic acid, pelargonic acid and caproic acid to give the corresponding peresters.
Patent GB-1227572-A (GB)
IPC: B22F3/12
Filed: 1968-06-28
Abstract: 1,227,572. Isostatic compaction. IFOVERKEN A.B. 28 June, 1968 [30 June, 1967 (2)], No. 30857/68. Heading B5A. In the moulding of powdered material, e.g. to a serrated profile high tension ceramic insulator, by isotactic compaction wherein a sealed yieldable vessel of rubber or plastics containing the powder is subjected to oil or water pressure of 500 to 2500 atmospheres within a pressure vessel, the vessel containing the powder is evacuated prior to compression to facilitate handling without deformation thereof, and before filling with the powder, the vessel is internally pressurized to above atmospheric to press it against the walls of a divisable mould defining the shape of the moulded article. With a non-reusable vessel which is smaller than and of a shape not corresponding to that of the insulator and which is subsequently torn from the moulded article, the vessel 13 is supported within a split mould 24 corresponding to the desired shape and provided with valved connections for vacuum 26, powder feed 27 from a container 29, and air pressure 28. The vessel 13 is inflated into contact with the mould 24, and is then filled by opening the powder feed connection and simultaneously pressurizing the container 29. After reducing pressure to atmospheric within the vessel 13, vacuum is applied thereto through a filter 36. Hollow articles or articles having passages may also be moulded by placing one or more cores in the vessel 13. The vessel may also be re-usable, if of the same shape as the moulded article, from which it is stripped by being expanded therefrom by internal air pressurization or external vacuum, preferably applied simultaneously to the vessel within a sealed container preventing excess expansion thereof.
Patent GB-1228717-A (GB)
IPC: H01L21/00
Filed: 1969-02-25
Abstract: 1,228,717. Electroluminescence. R.C.A. CORPORATION. 25 Feb., 1969 [26 Feb., 1969], No. 9945/69. Heading C4S. [Also in Division H1] A laser diode is formed on a R<SP>+</SP> substrate (which forms part of the electrode) by epitaxially depositing a monocrystalline layer of P-type gallium arsenide from a zinc-doped molten solution of gallium arsenide in gallium, and by then epitaxially forming on this layer an N-type layer from a tellurium-doped molten solution of gallium arsenide in gallium. The solubility of zinc in the solution increases with temperature so that the first deposited material is more heavily doped and may contain inclusions of zinc-these do not matter at the junction with the heavily doped substrate. The solubility of tellurium in the solution decreases with increasing temperature so that doping in the tellurium layer is highest near the free surface-a tin electrode layer is provided on this. The structure may be annealed to diffuse zinc from the N-type layer into the P-type layer, thus shifting the PN junction from the mechanical interface of the layers. The Specification also contains the subject matter of Specification 1,172,321.
Patent GB-1228891-A (GB)
IPC: G01F11/24
Filed: 1968-03-25
Abstract: 1,228,891. Dispensing measured quantities of powder; feeding materials. ERIC CORNER Ltd. 24 June 1969 [25 March, 1968], No. 14220/68. Headings B8N and B8S. Apparatus for dispensing measured quantities of powder &c. comprises a dispensing rotor 10 having blades 14 which contact a resiliently biased agitator 23 to agitate the powder to be dispensed. The rotor 10 has four flexible blades 14 and is mounted on a shaft 12 having a square sectioned end 19 contacting a leaf spring 21. Thus the rotor can be turned in one direction only, by a knob 18, and a quarter of a turn at a time to dispense measured quantities of powder through a tube 8. The agitator is pivoted about a rod 24 and is biased by a spring 25.
Patent GB-1230056-A (GB)
IPC: A23L27/27
Filed: 1970-02-09
Abstract: 1,230,056. Aroma concentrate. DRAGOCO SPEZIALFABRIK KONZENTRIERTER RIECHUND AROMASTOFFE GERBERDING & CO. G.m.b.H. 9 Feb., 1970 [22 Feb., 1969], No. 6022/70. Heading A2B. Smoked meaty products, for example waste fish or meat, are either extracted with an organic solvent which is subsequently distilled off, or subjected to steam distillation and the distillate extracted with an organic solvent which is subsequently distilled off, to provide an aroma concentrate which may inter alia be used in foods, pesticides or for imparting a smoke aroma to for example leather. Prior to smoking the product may be distintegrated to increase the surface area. The extracted smoked product may be re-smoked and re-extracted.
Patent GB-1230428-A (GB)
IPC: F22B29/00
Filed: 1968-12-23
Abstract: 1,230,428. Centrifugal pumps. COMBUSTION ENG. Inc. Dec.23, 1968 [Dec. 26, 1967], No.60949/68. Heading F1C. [Also in Division F4] Centrifugal pumps 35, 43 can be changed over from operation in parallel to operation in series by opening a normally closed valve 4. Check valves 11, 12 which are open during parallel operation then automatically close. Isolating valves 3, 6 and 5, 7 permit either pump to be taken out of use if it develops a leak or needs servicing, the other pump then being used alone. In another arrangement, Fig. 1 (not shown), valves 6, 7 are omitted and the simple check valves 11, 12 are replaced by stop check valves (1, 2).
Patent GB-1230957-A (GB)
Inventor: STEPHENSON O
IPC: F16H61/40
Filed: 1966-10-31
Abstract: 1,230,957. Constant tension control for winches. CLARKE CHAPMAN - JOHN THOMPSON Ltd. 30 Jan., 1968 [31 Oct., 1966], No. 35853/70. Heading B8B. [Also in Division F2] A pump control arrangement for varying the supply of fluid to a winch drum hydraulic motor driven thereby, in response to changes of load on the motor, so as to tend to maintain the load constant, includes a resilient transmission linkage which is displaceable by a safety override device to regulate the fluid supply to a rate corresponding with a zero or minimal speed of the motor. The linkage for varying the swashplate angle of the variable displacement pump includes a cam follower pivoted to and laterally displaced from a main lever, and spring biased into alignment therewith, the follower being controlled by operating cams to control the pump output, but the main lever being engageable by an override cam to move the lever against the spring bias between the lever and follower into a neutral position corresponding to said minimal motor speed. All the cams are mounted on spring biased cylinders movable on pistons of hydraulic rams mounted in parallel on a frame, the override cam ram communicating with the pump feed pressure and being spring actuated when the pressure drops due to either leakage or electrical failure causing a solenoid valve in the fluid feed line to the ram to close. The operating cam rams include a ram fed with the pump feed pressure which causes the pump to maintain a constant motor force in the absence of any other control, and two rams fed from independent fluid circuits which are controlled either manually or automatically to adjust the pump output. The automatic control for maintaining constant tension T in the winch drum, i.e. constant force in the hydraulic motor or motors, comprises a resiliently biased lever on which the motor is mounted, the lever being arcuately movable about the winch drum axis in response to tension variation thereon, and a potentiometer wiper Wt attached to the lever and movable along a control potentiometer Pt producing a corresponding output signal. The potential difference between the said signals and those from a follower potentiometer Pf is registered by a detector D which through an electro hydraulic valve EV controls movement of the automatic cam ram HC. The latter, while causing pump output adjustment also moves a wiper Wf of the potentiometer Pf until the outputs from both potentiometers are balanced, at which stage the winch tension is back to that required. Ganged resistances RS are provided at opposite ends of the follower potentiometer Pf to vary the ratio between the voltage across the two potentiometers whereby the pump delivery for a given increment of potential difference is variable. A movable resistance VR is provided in series with the potentiometer Pt to facilitate variation in positioning of the wiper Wt for a particular winch tension valve.
Patent GB-1232280-A (GB)
IPC: H01R39/36
Filed: 1968-06-04
Abstract: 1,232,280. Electric couplings. SOC. LE CARBONE LORRAINE. 4 June, 1968 [8 June, 1967], No. 26593/68. Heading H2E. A flexible connector between the brush of an electrical machine and a conductor fixed to the machine is constituted by a cable or braid of carbon fibres. At least one of the ends of the braid or the fibres constituting the braid may have a conductive coating. The preferred coating is of metal which may be deposited by any suitable means, chemical, physical or electrolytic. In one embodiment, the coating is deposited from a suspension of metal powder in a liquid. The connector may be inserted in the brush, by placing the connector in the mould in which the brush is to be formed and pressure moulding the components of the brush around it. The brush may then be baked and graphitized. The connector may be linked with carbon or metallic conducting elements.
Patent GB-1251128-A (GB)
IPC: G01F23/296
Filed: 1969-02-12
Abstract: 1,251,128. Level sensing. RANK XEROX Ltd. 12 Feb., 1969 [13 Feb., 1968], No. 7584/69. Heading H4D. [Also in Division G4] The level of material in a container (e.g. a hopper 100 from which toner powder is dispensed in an automatic xerographic copying machine) is sensed by comparing the amplitude of an acoustic pulse received at 80 from transmitter 70 with a threshold value. Transducers 70 and 80 may be those from a conventional telephone hand set. Switches SW-B and SWA2 are closed to make receiver 80 operative and initiate a level sensing at a quiet part of the copying machine operating cycle, then switch SW-A1 is closed to pulse transmitter 70. If the received pulse has a sufficient amplitude, i.e. when the material is below the level of the transducers, the silicon controlled switch SCS is triggered and energizes neon lamp NE-2. The lamp indication can be cancelled by closing switch SW-C to reverse bias the SCS cathode. Potentiometer R-1 allows the trigger threshold to be adjusted. Details of the xerographic apparatus are given.
Patent GB-1252558-A (GB)
IPC: G01C9/12
Filed: 1970-03-16
Abstract: 1,252,558. Indicating-apparatus; measuring current flow. DATAWELL-N.V. March 16, 1970 [March 18, 1969J, No. 12489/70. Headings G1J and G1R. An orientation device comprises a platform 4 attached to a suspension thread 3 having small torsional stiffness, the platform 4 carrying one or more instruments 5 and having a magnetic dipole 7 mounted thereon freely rotatable about the axis of horizontal shaft 6 about which it is in neutral equilibrium with respect to the field of gravity. The device is submerged in a liquid 8 filling a spherical vessel 1 to which the thread 3 is anchored by a rod 2. The parts 4, 5, 6 and 7 have a total weight nearly equalling the weight of liquid displaced by them and the magnet 7 is composed of a ferromagnetic powder embedded in a light material and may have one or more hermetically sealed gas chambers. The instruments may be for measuring wave and current phenomena in open water and may comprise a part e.g. a coil, generating an alternating magnetic field, mounted on the platform 4 to  co-operate with parts such as field detecting coils mounted elsewhere.
Patent GB-1257193-A (GB)
IPC: B29C37/00
Filed: 1968-06-28
Abstract: 1,257,193. Coating apparatus. BRITISH INSULATED CALLENDER'S CABLES Ltd. 27 June, 1969 [28 June, 1968], No. 31064/68 Heading B2L. Apparatus for applying a powder coating to a cable 3 comprises a bed of chalk 6 or the like in which are located discrete bodies 5 which bodies are caused to vibrate and agitate the powder by means of a vibrator 9. Instead of the vibrator 9 the bodies can be vibrated by contact with the moving cable.
Patent GB-1257480-A (GB)
IPC: D06N7/00
Filed: 1968-12-24
Abstract: 1,257,480. Coated carpets. UNIROYAL Ltd. 19 Dec., 1969 [24 Dec., 1968], No. 61249/ 68. Heading B2E. A tufted carpet having a polypropylene primary backing is obtained by inserting carpet pile tufts into the backing and securing them in place by applying a foam of a flexible film-forming polymer as an aqueous latex on to the back of the carpet, working the foam into the backing of the carpet whilst at the same time collapsing the foam structure and subsequently drying the collapsed foam to complete removal of water. The foam may be worked into the backing using a doctor roller or a doctor blade and these may be set just clearing or just touching the backs of the tufts rising from the backing. The foam may be formed from an elastomeric resin such as a styrene-butadiene copolymer. A filler may be present such as clay, alumina or calcium carbonate and pigments such as titanium dioxide or carbon may also be present as well as surface active agents, catalysts, antioxidants, foam stabilizers and gel sensitizers. The latex may be applied at 3-32 ounces per square yard.
Patent GB-1258480-A (GB)
IPC: H05B39/09
Filed: 1969-03-21
Abstract: 1,258,480. Transistor pulse circuits. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 March, 1969 [30 March, 1968], No. 15064/69. Heading H3T. A pulse generator has a transistor 1 whose emitter resistor 4 forms part of a voltage divider 6, 5, 4 defining the base potential, the resistor 4 causing the generator to stop when the battery voltage drops below a given level. A complementary transistor 2 is driven by T1 and both collector currents pass through a lamp 11. The voltage across the lamp 11 rises as it turns on until the voltage across R6, 5, 4 drops to the point at which transistor 1 cannot be maintained conductive by the voltage across R5. The transistors then go off, and stay off until capacitor 7 charges through R6, 8 to the value determined by the divider R6, 5, 4 plus the non-illuminated lamp 11, whereupon T1 starts to turn on, and the cycle repeats. The capacitor 7 assists turn-on by applying the rising voltage across the lamp 7 to the base of T1. The circuit stops functioning altogether when the battery voltage falls far enough for the voltage across R5 to be too small to turn on T1. Approach of this condition is detected by provision of a pushbutton switch to connect an extra load temporarily to the battery, whereupon discontinuation of flashing of the lamp 7 indicates approach of battery failure.
Patent GB-1265629-A (GB)
IPC: C07C313/18
Filed: 1970-10-23
Abstract: 1,265,629. Trihalomethylthio - sulphamic acid chloride. FARBENFABRIKEN BAYER A.G. 23 Oct., 1970 [23 Oct., 1969], No. 50472/70. Heading C2C. Compounds of formula  wherein R is a C 1-4  alkyl group and X, X<SP>1</SP> and X<SP>11</SP> are fluorine or chlorine are prepared by reaction of a compound RNHSO 2 Cl with a compound ClSCXX<SP>1</SP>X<SP>11</SP>. The fungicides N,N - dimethyl - or N - ethyl, N - phenyl - N<SP>1</SP> methyl - N<SP>1</SP> - (fluorodichloromethylthio) -  sulphuryl diamide are prepared by reaction of the appropriate compound of the invention with dimethylamine or N-ethylaniline.
Patent GB-1290906-A (GB)
IPC: H01H67/26
Filed: 1969-12-02
Abstract: 1290906 Electric selectors TELEFONAKTIEBOLAGET L M ERICSSON 2 Dec 1969 [3 Dec 1968] 58901/69 Heading H1L A cross-bar switch contact unit comprises a body of insulating material 1 having a plurality of wedge-shaped apertures 3 at one end, a corresponding plurality of horizontal fixed conductors 8 disposed at the upper parts of the apertures at or near the mouth thereof and a plurality of moving conductors 2 operable by a lifting card 7 and anchored to the body near the other end thereof with their ends 5 projecting beyond the body to provide soldering tags. The body may comprise a plurality of insulating wafers that are clamped together so as to sandwich the moving conductors therebetween. The fixed conductors may be formed as printed wiring and they form the horizontals for a plurality of vertical moving contact sets (Figs. 2 and 4, not shown).
Patent GB-1296456-A (GB)
IPC: F16B15/08
Filed: 1970-06-10
Abstract: 1296456 Nails TEXTRON Inc 10 June 1970 [29 Dec 1969] 28141/70 Heading F2H [Also in Division B8] A nail as shown in Fig. 1 or Fig. 4 may be arranged in a package such that its shank abuts that of an adjoining nail, and its head nestles within that of the adjoining nail, as shown in Fig. 3, or is in overlapping relationship, as shown in Fig. 6. The nails forming the package are secured together by an adhesive and form a straight or coiled package in which the row of nails is generally inclined for accommodation in the magazine of a suitable fixing tool. The shank of the nail may be coated or serrated to provide greater holding effectiveness.
Patent GB-1305551-A (GB)
IPC: C08L63/00
Filed: 1969-02-17
Abstract: 1305551 Laminates ALBRIGHT & WILSON Ltd 16 Feb 1970 [17 Feb 1969] 8479/69 Heading B5N [Also in Division C3] Laminates are prepared from glass cloth and cured aromatic resins prepared by (A) reacting a compound R<SP>1</SP>(CH 2 X) a  in which a=2 or 3, X is a halogen atom or a C 1-6  alkoxy radical and when X is an alkoxy radical R<SP>1</SP> is a di- or trivalent aromatic hydrocarbon or hydrocarbonoxy radical in which oxygen is present as an ether group and when X is halogen R<SP>1</SP> is a mononuclear aromatic hydrocarbon radical, with a molar excess of a phenol or a mixture of a phenol with a compound containing aromatic nuclei, the phenol containing at least two free nuclear hydrogen atoms ber molecule. (B) The polymer produced in (A) is reacted with a poly. epoxide. Suitable starting materials for (A) are p-xylylene dichloride or p-xylylene glycol dimethylether with phenol, p-phenyl phenol or resorcinol. Such polymers are described and claimed in Specification No. 1,150,203. Suitable polyepoxides are diglycidyl ethers of bisphenol A, epoxy novolac resins, dicyclopentadiene dioxide and 3, 4-epoxycyclohexylmethyl- 3, 4-epoxy-cyclohexane carboxylate. Reaction of the polyepoxide and the polymer (A) may take place at 110-210 C. optionally in the presence of an accelerator, e.g. benzyldi. methylamine. From 25-150% by wt. of polyepoxide may be used based on the wt. of the polymer (A). In an example a polymer (A) prepared from phenol and p-xylylene glycol dimethylether is dissolved in methyl ethyl ketone with a diglycidyl ether of bisphenol A and benzyldimethylamine. The solution was used to impregnate glass cloth. After a precure of 10 minutes at 135 C. a 24-ply laminate was prepared which was cured at 175 C./1000 p.s.i. for 1 hour followed by a post-cure at room temperature to 250 C./4 hours and 250 C./24 hours.