baber/WOPTO huggingface dataset:
Patent GB-1104881-A (GB)
Title: Improvements in or relating to methods of making thin film electric circuit elements
Inventor: JACKSON THOMAS MEIRION
IPC: H01L49/02
Filed: 1964-09-07
Abstract: 1,104,881. Making capacitors and resistors; spark erosion. STANDARD TELEPHONES & CABLES Ltd. 3 Sept., 1965 [7 Sept., 1964] No. 36579/64. Headings B3A and B3V. [Also in Division H1] An electric circuit element such as a resistor or capacitor is made by depositing a metal layer on a substrate and removing part of the layer by spark erosion using a resilient electrode which is oscillated relatively to the layer. The spark erosion apparatus is of the kind described in Specification 1,105,411. In the manufacture of a resistor, Figs. 4-6 (not shown), conductive tracks (41) of gold or copper are provided on a glass substrate (40) by an evaporation process and are then built up by electro-deposition. A resistor pad (44) of Nichrome alloy (Trade Mark) is deposited in vacuum to bridge the tracks and is then spark eroded to give correct resistance. A capacitor, Figs. 7, 8 (not shown), is made by depositing on a substrate (51) upper and lower layers which may be of aluminium separated by a dielectric of silicon dioxide. The upper layer is then spark eroded. A silver-mica condenser, Fig. 8 (not shown), is made by depositing silver (61) on each side of a mica sheet (60) and then spark eroding one of the layers.
Patent GB-522799-A (GB)
Title: Electric signal transmission systems
IPC: H03G7/02
Filed: 1938-12-16
Abstract: 522,799. Automatic volume control. STANDARD TELEPHONES & CABLES, Ltd. Dec. 16, 1938. No. 36709. Convention date, Feb. 18. [Class 40 (iv)] The time constant of an automatic volume control circuit decreases with increase of signal level and vice-versa in response to rapid changes in level. As described the resistance upon which the time constant depends comprises a bridge of non-linear resistances controlled by rectified signal current..The invention may be applied to the audio - frequency amplifier preceding a wireless transmitter to prevent over-modulation and the control effected may be signalled to the receiver by a pilot-frequency to effect an opposite control on the highfrequency stages. As shown, the input transformer'IT is shunted by a triode E the grid bias of which is controlled by rectification at R1 of output voltage, bias being applied over a rectifier bridge R2 ... R5 and a resistance V which may be adjustable. When the system is quiescent, the bias of E is negative and its signal shunting effect is negligible, but when the output exceeds a predetermined value determined by the bias on rectifier R1, the bias of E is reduced so that it exerts a shunting effect to maintain the output substantially at the predetermined value. Output signal energy is also applied over step-up transformer and rectifiers R6, R7 to control the resistance of bridge R2 ... R5 so that in the quiescent state the resistance is high and time constant large. e.g., 25 seconds, but when a predetermined maximum input is reached, the time constant is small, e.g., 30 milli-seconds. The rectifiers R6, R7 have a differential effect on the voltage over resistance V1 for biassing the bridge and serve to reduce the destructive effect of high-potential surges on the rectifiers and minimize variation' of the time-constant during normal conversation. The single shunt valve E may be replaced by a series of valves arranged as shunt impedances associated with series resistances connected in the line, the grid being connected in parallel. The transmission level of a pilot-frequericy generator B is also automatically controlled, the pilot being excluded from incoming speech by a filter T and from the control circuit by a filter Q.
Patent GB-801300-A (GB)
Title: Improved reinforced rubber articles
IPC: F24F1/00
Filed: 1955-12-28
Abstract: A rubber article reinforced with cord is prepared by dipping relaxed cord in a dilute adhesive to wet it throughout, then partially drying it, immersing the partially dried cord in a second dip comprising the adhesive and an agent for preserving the adhesive bond, drying the cord to set the solids of the second dip on the cord surface, embedding the treated cord in rubber, and vulcanizing the assembly under heat and pressure.  The cord may consist of cotton, rayon, nylon, or a linear polyester resin.  The adhesive preferably comprises a phenolaldehyde resin in combination with synthetic or natural rubber latex, and may also contain casein, gelatin, wheat protein, dried blood, a wetting agent, another synthetic resin, carbon black, artificial dispersion of rubber, and/or a water-soluble adhesive.  The agent for preserving the adhesive bond may comprise urea, thiourea, ethylene thiourea, an amine, e.g. disalicylal propylene diamine, a mixture of N,N1-aryl disubstituted p-phenylene diamines, N,N1 - diphenyl - p - phenylene diamine, 2-mercaptobenzimidazole, o,o1 - dihydroxy benzninilide, buiret, dithiobuiret, aniline-formaldehyde, reaction product, or the reaction product of acrylonitrile and tetraethylene pentamine, or of guiacol, morpholine, and formaldehyde, or a blend of these agents.  In an example, rayon tyre cord is dipped into a diluted mixture of resorcinol, formaldehyde, sodium hydroxide, and butadiene styrene latex.  The dipped cords are partially dried for 3 minutes at 72 DEG F. and then immersed in a second dip containing urea in addition to the ingredients of the first dip.  The cord is then dried at 300 DEG F. for 5 minutes to set the adhesive and embedded in a vulcanizable composition of natural rubber, and the assembly is vulcanized.
Patent GB-960329-A (GB)
Title: Process for treatment of cellulosic fabric with formaldehyde
Filed: 1962-10-01
Abstract: Cellulosic fabrics are rendered crease resistant and dimensionally stable by wetting them with an aqueous medium, treating them with a dehydrating solution containing formaldehyde to partially react the cellulose with the formaldehyde and then treating them with a latent catalyst for the cellulose-formaldehyde reaction which becomes effective upon heating.  The fabric may be wetted with a dilute aqueous solution of a strong acid or salt of a weak base with a strong acid, e.g. phospheric, hydrochloric, hydrobromic, sulphuric, trichloroacetic, formic or toluene sulphonic acid or ammonium chloride or sulphate, or water alone, adjusted to a water content of 10-100% by weight, treated with a dehydrating solution which may be an anhydrous solution of glacial acetic acid containing traces of acetic anhydride or an aqueous solution containing 40-70% by weight of calcium chloride hexahydrate and which may contain 3-20% by weight of formaldehyde, washed with cold water, dried at a temperature below 150 DEG C. treated with 0.5-6% by weight of latent catalyst, e.g. magnesium chloride, zinc nitrate, aniline hydrochloride, ethylamine hydrochloride or ethylene diamine dihydrochloride, dried at a temperature below 150 DEG C., cured at a temperature of at least 150 DEG C., washed and "Sanforized" (Registered Trade Mark). Alternatively the fabric may be wetted with an aqueous solution containing an anionic, cationic or narionic wetting agent, numerous examples of which are given, and then treated with the dehydrating solution containing formaldehyde and an acid.  The fabric may be pretreated with a starch or curable crease-proofing resin, e.g. a urea-aldehyde, amino-triazine-aldehyde, tetrahydro-5-hydro-2(IH)-pyrimidone-formaldehyde, cyclic ethylene urea-formaldehyde, urea formaldehyde, triazone-formaldehyde or epoxy resin.  The solution of the latent catalyst may contain hard builders, softeners, waterproofing agents, oil repellents fungicides or fireproofing agents.  The fabric may be washed with hot soapy water after treatment with the latent catalyst and prior to drying. Permanent creases or pleats may be formed in apparel by fashioning the fabric after treatment with the latent catalyst and drying into apparel and creasing or pleating with a hot iron. The fabric may be embossed after treatment with the latent catalyst prior to drying and curing.  Fabrics comprising cotton, linen, hemp, jute, ramie, sisal viscose or cuprammonium rayon, cellulose acetate cellulose acetate-propionate, cellulose acetate butyate, or ethyl cellulose fibres alone, or in admixture with nylon, polyacrylonitrile or polyester fibres, may be treated.
Patent GB-979534-A (GB)
Title: Improvements in or relating to an apparatus for automatically monitoring the fillingof a centrifuge
IPC: B04B11/04
Filed: 1962-10-01
Abstract: In centrifugal apparatus including a control circuit which automatically monitors the filling of the centrifuge and which automatically applies a signal to a material-feeding device to reduce, to a predetermined extent, the rate of feed prior to the completion of filling, the moment chosen for the application of the signal is made to depend on the speed of the centrifuge.  In the preferred embodiment, such dependence is effected by coupling a tachometric machine to the centrifuge or its drive, and using the voltage thus generated to energize the primary ("speed-measuring") relay of the control circuit. Alternatively, the moment chosen for the application of the signal may be merely a predetermined period after commencement of feeding or of starting-up of the centrifuge, or may depend on the setting of the feeding device.  There may be a continuous reduction of the feed rate or a succession of separate reductions.
Patent GB-813144-A (GB)
Title: Improvements in or relating to turbines or compressors
IPC: F01D5/30
Filed: 1956-12-06
Abstract: 813,144. Turbine and compressor blades. BROWN BOVERI & CIE. A.G. Dec. 6, 1956 [Dec. 6, 1955], No. 37314/56. Class 110 (3). A turbine or compressor blade unit comprises either a single blade profile portion having means for attachment to a rotor, or a pair of blade profile portions having common means for attachment to a rotor, and the attachment means comprises a platform portion having an integral root, the root being shaped so as to engage in an axially-extending slot formed in the rotor. The invention is shown applied to a blade unit having a pair of profile portions 1, a common platform portion 2 and a root 3 which engages in a slot formed in the rotor disc 6. The root 3 is circumferentially offset with respect to the platform 2 so that the resultant of the circumferential and radial forces acting on the blade unit is offset with respect to an oppositely-acting balancing force. The circumferential ends of the platform portion 2 are shaped to provide inter-engaging projections 4 so that the couple due to the offset forces is transmitted at both ends of the platform to the platforms of the adjacent blade units.
Patent GB-1497560-A (GB)
Title: Electrical connector assemblies
IPC: H01R13/516
Filed: 1975-09-11
Abstract: 1497560 Connector assembly AMP Inc 11 Sept 1975 37340/75 Heading H2E An electrical connector assembly 1 comprises a multiconductor cable 40, an electrical connector 8, a shroud 84 and a cover 110. Cable 40 has a plurality of conductors 42 enclosed by an insulating sheath 44 and each conductor is also individually insulated. Connector 8 (Fig. 6) has an insulating housing 10 having a body 9 and a rib 16 with two rows of terminals 6 housed in cavities 14 on either side of rib 16 and a flange 34 for mounting on a panel; each terminal 6 has a contact 20 and a conductor connecting member 4, which includes two plates 24, 26 which receive conductor 42; partitions 36 isolate terminals 6 from each other. The shroud 84 which provides strain relief, has identical halves 86, each having an internal channel (not shown) to receive plates 24, 26 and a flexible latch arm 88 and a recess 90; a shoulder (91, Fig. 4, not shown) in the recess 90 co-operates with slot 94 in arm 88 to secure the two halves together; recesses are provided on opposite edges 93 of halves 86 so that conductors 42 can pass through to terminals 6. The conductors 42 extend from terminals 6 and through an aperture between a body half and the rear face 14 of body 9 and are then bent over the grooved outer surface of body half 86, each groove 100 receiving an individual conductor 42. Latch arms 96 and ears 98 on each body half 86 clamp the central parts of the halves 86 together. The cover 110 is made of insulating material, e.g. polypropylene or polyphenylene oxide and has a top part 46 connected to a bottom part 48 by a hinge 64 (Fig. 2). The top part 146 has a panel 50, flanges 52, each flange having a recess 54 and an ear 58 in each recess and a rear flange 62. Clamping ears 60 with ribs 77 are provided on panel 50. The bottom part 48 has a panel 66, flanges 68, each having a latch arm 70 with a slot 69 and clamping ears 72, 74, 76 with ribs 77. U-shaped internal walls 80 define a passageway 82 for the connectors 42. To make a tap connection using the assembly 1, a portion of sheath 44 from cable 40 is removed to expose conductors 42 and intermediate portions of the conductors are inserted into portions 4 of terminals 6 in the connector 8; the body halves 86 are fitted at the rear of connector 8 and the conductors 42 are placed on panel 66 and positioned in aperture 82 and the shroud 84 is located between the flanges 68; the top part 46 is latched on to the bottom part 48 and bundle ties 102 (Fig. 1) are placed around the ears 60, 72, 74, 76 and secured, so that the ears are clamped round the cable sheath 44. Stress relief is provided by the cable ties, the shroud and the passageway defined by the U-shaped members 80.
Patent GB-453118-A (GB)
Title: Improvements in or relating to the manufacture of cylinders and cylinder liners for internal combustion engines, air compressors, pumps and the like
IPC: C22C37/06
Filed: 1934-12-31
Abstract: Cylinders and cylinder linings are made of alloy cast iron containing 2-3 per cent of carbon, 1-2 per cent of silicon, 3-18 per cent of tungsten, and 0,5-3 per cent of chromium, stated to have low or negligible elastic hysteresis capacity. Examples are within the following ranges: (1) carbon, silicon, and tungsten as above, and 1-3 per cent of chromium; (2) 2,75-3 per cent of carbon 1-1,5 per cent of silicon, 3-4 per cent of tungsten, and 0,5-1 per cent of chromium. The castings may be annealed at 900-950 DEG  C. followed by slow cooling; and such treatment may be followed by heating to slightly above the upper critical point and cooling.
Patent GB-341651-A (GB)
Title: Appliances for playing a table game of football
IPC: A63F7/06
Filed: 1929-12-06
Abstract: 341,651. Table games. SNOW, J. F., 3, Hailes Gardens, Colinton, Edinburgh. Dec. 6, 1929, No. 37414. [Class 132 (ii).] Relates to appliances for playing a table or parlour game of football of the type in which playing pieces consisting of discs having erections thereon to represent players are adapted to be flicked or projected against a missile upon a playing surface provided with goal posts at each end. According to the invention the playing pieces consist of discs, for example, bone, with erections thereon of cardboard, sheet metal or other sheet material so shaped as to represent actual players. The representations may be detachably secured to the discs. A cover marked to represent a football field is stretched over a table and goal posts, Fig. 2, are placed at each end. Twenty-two playing pieces, Fig. 5, consisting of discs 15 with cardboard figures 18, are placed on the cover and are skidded along the surface by means of a larger disc 22 so as to strike a celluloid ball and propel it through the goals. The goals are defended by a model figure 19 mounted on a rod 20 projecting through the back of the goal and manipulated by a player.
Patent GB-966996-A (GB)
Title: Improvements in or relating to sensing of perforated records
Inventor: BALDWIN RICHARD EVEREST
Filed: 1961-10-23
Abstract: 966, 996. Statistical apparatus. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Sept. 6, 1962 [Oct. 23, 1961], No. 37870/61. Heading G4M. In a sensing mechanism, a perforated record 1 is fed between two rotating cylindrical members 10, 13 and is sensed by means of double-ended pins 18 carried by member 13, the pins being slidable so that pressure applied to one end causes that end to retract towards the surface of cylinder 13 and causes the other end to project beyond the surface of the cylinder. If one end of a sensing pin 18 engages an unperforated portion of the record 1 the other end of the pin is caused to project by the maximum amount, preferably three times the thickness of the record 1. If the next index position is perforated, the other end of the pin passes through the perforation and makes electrical contact with member 10. Since the time of contact of one end of a pin 18 with member 10 depends on whether or not a perforation was sensed last by the other end of the pin, a commutator is arranged to supply current to pins 18 only during a fixed predetermined period after contact has been made and before it is broken again. As shown cylinder 13 may carry a group of pins 18 in order to sense each index position of a column of a normal 12-row card 1. All columns of a card may be sensed simultaneously by providing a group of pins 18 for each column of the card and by making cylinder 10 of a number of insulated conductive discs, one for each column, contact being made with the discs by means of separate brushes. Alternatively cylinder 13 may be made up from a plurality of insulated discs and member 10 may be a single conductive cylinder, Figs. 6, 7 (not shown). Instead of the two ends of each pin 18 sensing different positions in the same column, they may be offset as indicated in Fig. 4 so as to sense different positions in different columns. This arrangement may be used for sensing "interstage" perforations.
Patent GB-989099-A (GB)
Title: Improvements in oscillating or vibrating grading machines
IPC: B07B13/16
Filed: 1960-12-04
Abstract: 989,099. Screening apparatus. W. CUTLER. March 5, 1962 [Dec. 4, 1960], No. 37910/60. Heading B2H. In a size grading machine e.g. for potatoes or onions, of the type in which spaced parallel bars 36, Fig. 3, are vibrated to cause articles to travel along the bars, and in which articles below a certain size fall between the bars, those articles which do not fall between the bars being caused to travel to another grading section or to a discharge outlet, deflector members, in the form of discs 39, are provided, and are arranged to move relatively to the bars 36 in the spaces between the bars to dislodge any articles which have become wedged between the bars. A base frame 10 carries a lower frame assembly 16, on resilient wooden slots 19, secured to transverse members 21 on the base frame and pivotally connected at 20 to the assembly 16. An electric motor 22 drives an eccentric 23 which imparts a small amplitude vibratory motion to the assembly 16 by means of a connecting rod 24. An upper conveyer 26 contains the parallel bars 36 arranged in sections with increasing bar spacings from the end of the machine supporting a feed hopper 38. The conveyer 26 is mounted on the lower frome assembly 16 by resilient wooden slats 28 bolted to transverse beams 31 on the assembly 16 and pivotally connected at 29 to the conveyer 26. The beams 31 have upright brackets 32 at their ends, which are bolted to depending mounting plates 33 on the assembly 16, the securing bolts passing through arcuate slots 34 in the brackets 32 to enable the angle of inclination of the slats   28 and thus the amplitude of vibration of the upper conveyer to be varied. The conveyer 26 is vibrated by virtue of its resilient connections with the vibrated assembly 16. The discs 39, preferably of rubber, are mounted on transverse shafts 40, Fig. 3, supported on upright rods 41 secured to the lower assembly 16. The discs 39 project into the spaces between the bars 36 and move relatively to the bars when the machine is in operation. Articles to be sorted pass under the lower edge 48 of an adjustable door 49 in the hopper 38, and pass along the bars from one section to another, articles of the appropriate sizes falling between the bars. Each section of the parallel bars has disposed beneath it a trough 44 with a rubber lining 45 secured to the upper conveyer 26 with holes for the rods 41, and is provided with a discharge outlet 47. The machine in Fig. 1 has five sections, the last (left hand) section having no parallel bars and serving to discharge all articles which are too large to pass between the bars in the previous sections. Specification 910,964 is referred to..
Patent GB-1164807-A (GB)
Title: Improvements relating to Straight Ducts
Inventor: ELSEY GEORGE REGINALD
IPC: F16L9/00
Filed: 1966-08-24
Abstract: 1,164,807. Ventilating ducts. MARINITE Ltd. 24 Aug., 1967 [24 Aug., 1966], No. 38002/66. Heading F2P. A straight duct of rectangular cross-section, e.g. for the provision of combustion air and the disposal of combustion products in multistorey buildings, is built up of two sets of panels A, A<SP>1</SP> and B, B<SP>1</SP> of non-combustible insulating board, e.g. asbestos, formed to the required wall size, the panels of one set, as shown A, A<SP>1</SP>, having rebates D along opposite longitudinal edges to locate the corresponding edges of the other set of panels, in this case B, B<SP>1</SP>, which edges are provided with threaded metal inserts C in which are received fixing screws F, the neighbouring surfaces of the panels having interposed therebetween layers of incumbustible material T which may be attached to the panels of one set; as shown set B, B<SP>1</SP>. The metal inserts C are preferably of the self-tapping type which can be screwed into prepared holes, the uppermost screws F being used to secure corner brackets H which project beyond the corresponding end of the duct for locating the next duct to be placed vertically above. The layers T which are preferably of asbestos tape, are attached, e.g. by stapling, to the rebated surfaces before the panels are assembled.
Patent GB-1437255-A (GB)
Title: Fluorinated mono- and di-hydric alcohols and derivatives thereof
IPC: C08G65/26
Filed: 1973-08-10
Abstract: 1437255 Fluorine - containing polymers PENNWALT CORP 10 Aug 1973 [25 Aug 1972] 38075/73 Heading C3P [Also in Divisions C2 and D1] Polymers of methacrylates of formulµ and are prepared in solution in 1,1,2-trichloro- 1,2,2-trifluoroethane using α,α<SP>1</SP>-azobisisobutyronitrile as catalyst. (See Division C2 for monomer preparation). A maleic anhydride resin derivative of (C 9 F 19 CH 2 CH 2 SCH 2 ) 2 CHOH is prepared by treating ethylene-maleic anhydride resin (Monsanto EVA-21) with the alcohol in the presence of p-toluenesulphonic acid.