baber/WOPTO huggingface dataset:
Patent GB-858077-A (GB)
Title: Polymerisation processes
Inventor: VOLANS PETER
IPC: C08F10/00
Filed: 1958-11-13
Abstract: Ethylenically unsaturated hydrocarbons are polymerized to solid polymers in the presence of catalysts comprising an aluminium halide, an aromatic mercury compound and a finely divided vanadium oxide, in a liquid medium comprising a halogen-containing liquid. Specified hydrocarbons are ethylene, propylene, butylenes, pentenes, butadiene, styrene, a -methyl styrene and mixtures, e.g. ethylene-propylene and styrenebutadiene.  The aluminium halide may be aluminium bromide or aluminium chloride.  The mercury compound may be diphenyl mercury di(p-tolyl)mercury, phenyl mercurichloride or p-tolyl mercurichloride.  The vanadium oxide may be vanadium pentoxide or vanadium trioxide.  Specified media are trichloroethylene, tetrachloroethylene, ethyl chloride, tert, butyl chloride, chloroform, carbon tetrachloride, ethylene dibromide, stannic chloride and silicon tetrachloride.  The products may be recovered by washing with water, hydrochloric acid, methanol, ethanol or mixtures thereof.ALSO:Catalyst compositions for the polymerization of ethylenically unsaturated hydrocarbons comprise an aluminium halide, an aromatic mercury compound and a finely divided vanadium oxide. The aluminium halide may be aluminium bromide or aluminium chloride. Specified mercury compounds are diphenyl mercury, di(p-tolyl) mercury, phenyl mercurichloride and p-tolyl mercurichloride. Specified vanadium oxides are vanadium pentoxide and vanadium trioxide.  The vanadium oxide is preferably aged in the presence of the unsaturated hydrocarbon before adding the other catalyst components.  A halogen-containing liquid is also present; specified halogenated hydrocarbons, as well as stannic chloride and silicon tetrachloride, are mentioned.
Patent GB-860050-A (GB)
Title: Improvements in or relating to windscreen cleaning apparatus
IPC: B60S1/48
Filed: 1958-11-17
Abstract: 860,050. Windscreen cleaning apparatus. O'SHEI, W. E. Nov. 13, 1959 [Nov. 17, 1958], No. 36904/58. Class 138(1). A windscreen cleaning apparatus comprises two pumps 2, 2a, or like means for selectively discharging liquids, e.g. water and a concentrated detergent solution, from two containers 1, 1a, through separate discharge nozzles 3, 3a forming part of a common nozzle fitting 16. Both pumps 2, 2a are operated in the same manner. For example the pump 2 is operated by depressing a knob 20 by hand or foot to actuate a diaphragm which on being returned by a spring draws water (or a dilute cleaning solution) into the pump 2 from the container 1 through a tube 9 past a non-return valve 13. On again depressing the knob 20 the water or cleaning liquid is discharged past a non-return valve 18 through a tube 10 and the nozzle 3. The nozzles 3, 3a are formed by caps of transparent plastic material provided with discharge orifices 23, 23a and fitted in a fluid tight manner on spigots 21, 21a, on which the caps are rotatable to vary the direction of each jet of discharged liquid. In another embodiment the liquids are accommodated in two compartments of a common container of flexible material, from which the liquids may be discharged by pumps, or each compartment may be provided with a discharge outlet having a shut off valve, and the desired liquid is discharged by compressing the flexible container with the appropriate shutoff valve open. Specification 764,704 is referred to.
Patent GB-1208181-A (GB)
Title: Load sensing circuits
IPC: H02M7/155
Filed: 1968-08-02
Abstract: 1,208,181. Control of D.C. motors. R.C.A. CORPORATION. 2 Aug., 1968 [14 Aug., 1967], No. 36940/68. Heading H2J. The speed of a motor 120 driving a variable load is maintained substantially at a desired value by providing a capacitor 135 in the variable triggering circuit of a silicon controlled rectifier 115 and automatically varying the charge voltage of the capacitor 135 by means of a feedback resistor 118 in series with the motor. In the embodiment of Fig. 1, a back bias is provided by a battery 145 and the capacitor 135 is initially charged by a diode 125 via variable resistor 130 until its potential rises sufficiently to render the S.C.R. conductive; the capacitor 135 then continues to charge as a function of the voltage drop across feedback resistor 118. On the subsequent half-cycle discharge occurs via resistor 150, gate 116, cathode 114 and resistor 118 to a normal minimum voltage on capacitor 135, which then determines the phase angle at which the S.C.R. will fire on the next half-cycle. If the load on motor 120 increases, for example, the increased voltage drop across feedback resistor 118 causes capacitor 135 to charge to a higher voltage and the subsequent discharge is to a higher minimum which then causes earlier conduction of the S.C.R. and enables the motor to accommodate the change in load. In a second embodiment (Fig. 2, not shown) the capacitor is charged from a potentiometer in series with a diode across the main supply and the back-bias battery is omitted. In a third embodiment (Fig. 3, not shown) the S.C.R. is triggered via an NPN transistor (370) and a second capacitor (390) is charged by the voltage drop across the feedback resistor, via a diode (385), to subsequently -back-bias the transistor until the first capacitor charges sufficiently to render it conductive again.
Patent GB-943249-A (GB)
Title: Improvements in or relating to door securing means
IPC: E05B17/00
Filed: 1961-10-14
Abstract: 943,249. Door fastenings. K. G. MERCER. Sept. 26, 1962 [Oct. 14, 1961], No. 36953/61. Heading E2A. A door securing means comprises a housing a bolt 19 slidably arranged in the housing and a normally non removable rigid breakable member 24 separate from the bolt, arranged with its longitudinal axis parallel with the path of displacement of the bolt adapted to retain the bolt in a door fastening position. In the construction shown the bolt 19 is urged to its door releasing position by a spring 20 so that when the member 24, which is a glass tube, is broken, the door is automatically unfastened. To enable the tube to be replaced or removed when required a plate 17 is pivotally attached to the housing so that it can block the end of an aperture 16 through which the tube is inserted in the housing to hold the bolt in its fastening position. A padlock is used to secure the plate to the housing so that the bolt can only move to its unfastening position by removing the padlock or breaking the tube. A striker (not shown) for breaking the tube is attached to the housing by a cord.
Patent GB-933700-A (GB)
Title: Catalytic preparation of hexenes
IPC: C07C2/30
Filed: 1961-10-17
Abstract: Hexenes are obtained by dimerizing propylene in the presence of an alkali metal hydrocarbon at 40 DEG -225 DEG C. and atmospheric to 150 atmospheres pressue.  The hydrocarbon radical in the catalyst may be ethyl, propyl, butyl, amyl, hexyl, propenyl, butenyl, hexenyl, phenyl, naphthyl or benzyl or more especially allyl.  Sodium compounds yield 4- and 2-methyl-pentene-2 and potassium compounds 4-methyl-pentene-1.  A hydrocarbon solvent may be used.  Reaction is effected in the vapour, liquid or mixed phases in batch or continuous operation using a fixed, fluidized or suspended catalyst which may be on a carrier.  The catalyst is added in amounts of 0,01-10% by weight of propylene or at a propylene to catalyst mol. ratio of 2-500:1.
Patent GB-948284-A (GB)
Title: Disintegrating machine especially for meat and agricultural products
IPC: B02C18/00
Filed: 1961-10-17
Abstract: 948,284. Mincers. C. SCHNELL, [trading as CARL SCHNELL MASCHINENFABRIK]. Oct. 17, 1961 [Nov. 3, 1960], No. 37182/61. Heading A4C. A mincing machine of the type described in Specification 831,726 is modified by the incorporation of an annular attachment 8 which constricts the cross-section between the perforated plate 2 and the ejectors 5. Reference has been directed by the Comptroller to Specification 831,726.
Patent GB-787979-A (GB)
Title: Improvements in or relating to tape winding device
Inventor: LEKAS JOHN P
IPC: G11B15/60
Filed: 1954-04-20
Abstract: 787,979. Feeding webs. NORTH AMERICAN AVIATION, Inc. April 20, 1954, No. 37232/55. Divided out of 787.978. [Group XIX]. Class 100(1) [Also in Groups XIX and XXIV] A device for winding a tape 6 from one reel 1 upon a shaft 10 to another reel 2 upon the same shaft comprises a tape shelf 7 positioned outside the peripheries of the reels and passing from the plane of one reel into the plane of the other in a spiral about their common axis and having tape guides along the edges of the shelf. The invention is shown embodied in the tape recorder of the Specification 787,978 wherein a magnetic tape 6 is wound in the same direction on the two reels 1, 2 whose hubs 20, 21 tend to turn in the same direction as the motor driven shaft 10 due to slip clutches 3, 4 (see Group XXIV) therebetween which thereby. keep the tape in tension in whichever direction it is driven by a motor driven capstan 8, whose speed is held steady by a flywheel. Specification 787,980 [Group XXXVIII] also is referred to.
Patent GB-1242615-A (GB)
Title: Guide system for rams in press brakes and the like
IPC: B30B15/04
Filed: 1969-07-24
Abstract: 1,242,615. Hydraulic presses. PACIFIC PRESS & SHEAR CORP. 24 July, 1969 [24 Jan., 1969], No. 37264/69. Heading B5F. [Also in Division B3] In a machine of the press brake type having hydraulic drive means 11, 13 pivotally connected to a ram 1 which is movable between slideways 17, slide pads 25 resiliently engage the slideways 17, and pivotal means between the ram and pads 25 permit angular movement of the ram without disturbing the sliding engagement between the pads and slideways. As shown in Figs. 1, 4 a spherical recess 37 in each pad is engaged by a spherical segment 39 adjustably spaced from a bracket 27 by a wedge 45. Compression springs 29, 31 are mounted between the pads 25 and brackets 27 on the ram. The slideways 17 are supported on four corner columns 3, 5, (7, 9) Fig. 2 (not shown), additional slideways (19) being provided on the facing sides of adjacent columns. Means are provided (Fig. 3, not shown) for maintaining the ram level. Fig. 5 (not shown) shows an alternative pivotal mounting.
Patent GB-1066305-A (GB)
Title: A process and apparatus for covering complete sets of electrodes with a separating material
IPC: H01M50/466
Filed: 1965-09-01
Abstract: 1,066,305. Making cells. VARTA A.G. Sept. 1, 1965 [Oct. 2. 1964], No. 37332/65. Heading H1B. Electrode plates of alternate polarities are laid between two strips of separator material, which strips are welded together between the plates. The assembly is then folded to form an electrode group. The top strip is laid on the spaced electrodes and then the plates and top strip are lifted and the bottom strip slipped underneath. The process is mechanized.
Patent GB-1352593-A (GB)
Title: Apparatus for enciphering and deciphering multidigit coded signals
IPC: H04L9/18
Filed: 1971-08-09
Abstract: 1352593 Digital transmission; cyphering systems ANSTALT EUROPAISCHE HANDELSGESELLSCHAFT 9 Aug 1971 [20 Aug 1970] 37342/71 Heading H4P A multi-digit cypher generator of the type having a mixer stage, particularly for use with a teleprinter comprises a store 2 having bi-stable relays A-C for a first three digit character, D-F for the second and G-J for the third, routed by contacts k1-m3 (when closed) of relays K-M sequentially energized by a distributing relay ZL stepped by a common contact k0 closed each time a symbol key is depressed. After insertion of the third character into relays G-J a relay M is energized, hence through contacts m4 and periodic cam operated contacts n3 relay ZL is reset which also deenergizes relay M. Previously relays X-Z of majority circuit 4 have been energized which relays respond when at least two of their three windings are energized and hence form a majority decision arrangement. Through contacts x1-z1 relays P-R are controlled which operate contacts p1-r1 in mixer stage 3. Key generator SL also determines the positions of contacts sl1-sl3 each path through which corresponds to an exclusive OR operation and the result is stored in relays U-W each of which may be latched by a self-holding contact u1 &c., when cam operated contact n2 is closed. As contacts s4 are closed, information is introduced through contacts u2-w2 to key generator 1. At the end of each operational cycle, relays A-J are reset via cam operated contact n4 and relay S is also simultaneously activated energizing relays P-R hence inserting all subsequent characters into the mixer stage 3. Contacts f4 are also opened rendering contacts u2-w2 ineffective and contacts s5-s7 connect contacts u3-w3 to keyboard contacts kl12 &c. giving a plain output of text. Key generators 1 at transmitter and receiver are provided with the same cypher programme. To initiate cypher operation, a signal of say 5 bits is transmitted four times, though storage may be only for 3 characters and after transmission of these 20 bits transmitter is switched to cypher operation. At the receiver the majority decision circuit 4 recognizes the cypher preparation signal which is placed in mixing stage 3 and the key generator is set to the starting position. The cams operating contacts n1-n4 are rotated by a common motor through a mechanical coupling giving one cycle for each operation. The arrangement may be used for decyphering.
Patent GB-985643-A (GB)
Title: Colour television receiver video amplifier
IPC: H04N9/64
Filed: 1963-09-23
Abstract: 985,643. Colour television; wide-band amplifiers. RADIO CORPORATION OF AMERICA. Sept. 23, 1963 [Oct. 5, 1962], No. 37389/63. Headings H3W and H4F. A colour television video amplifier comprises (1) a first stage 51, which functions as a common amplifier for the luminance, chrominance, colour synchronizing and scanning synchronizing components, the grid of the stage being directly coupled to the video detector and the colour and scanning synchronization utilization circuits 31, 59 and 41 being coupled to the anode load circuit as shown, and (2) second and third stages 53, 57 which function to apply the luminance component to the cathode-ray tube 19, the arrangement being characterized by the use of a triode 140 as the second stage which has its grid directly coupled to the anode load circuit of the first stage so that its grid is biased positive of the cathode and it functions continuously in the grid current region of its operating characteristic. Delay line 55 separates the second and third stages, the low output impedance of triode 140 providing an appropriate source impedance, and a network 163 being provided to terminate the line correctly. The third stage is directly coupled to the second stage (so that D.C. coupling exists throughout from the detector to cathode-ray tube), the coupling circuit 153, 157, 159, 161 including an adjustable resistor (161) whereby the A.C./D.C. ratio of the signal may be varied to provide control of image brightness. A potentiometer 181 in the cathode circuit of the third stage provides adjustable degeneration for the purpose of controlling image contrast.
Patent GB-865387-A (GB)
Title: Improvements in or relating to thermal radiation detectors
IPC: G01J5/20
Filed: 1959-11-04
Abstract: 865,387. Thermal radiation detectors. ALBISWERK ZURICH A.G. Nov. 4, 1959 [Nov. 4, 1958], No. 37448/59. Class 40(3) [Also in Group XXXVI] A device for detecting the position of a body emitting thermal radiation comprises a detector formed of two identical elements, each of interwoven wires, Fig. 1, the wires being insulated from one another and having a resistance which varies with temperature. Only one of the elements receives radiation from the body. Corresponding wires in the elements are connected in adjacent arms of individual bridge circuits. To facilitate this the row and column wires 6 and 7 of the two elements 4 and 5 are joined by wires 8 and 9, as shown in Fig. 3. In determining the position of a radiating body the radiation is focused by an optical system on to one of the elements. A small part of this element is heated in accordance with the intensity of the radiation and the position of the body in the viewing field, and therefore the balance of the associated bridge circuits is upset. An indicator is connected sequentially to the bridge circuits and the position of the heated portion of the element, and hence the position of the body relative to a co-ordinate system corresponding to the wires of the element, determined thereby.
Patent GB-969350-A (GB)
Title: Improvements relating to glide castors for articles of furniture
Inventor: KESTERTON HENRY MARTIN
IPC: B60B33/00
Filed: 1961-10-19
Abstract: 969,350. Glide castors. HOWARD CLAYTON-WRIGHT Ltd. Oct. 4, 1962 [Oct 19, 1961], No. 37452/61. Heading A4U. A glide castor has a synthetic resin body having two parts 11, 12 and a swivel pin 13 which is rotatable in a sleeve 15 having a flange 16 by which it is attached to a furniture leg 10. The base member 11 is circular in plan view having an axis offset from the swivel pin axis and the under surface of the member extends upwardly at an increasing angle to the horizontal. In a modification Fig. 2 the swivel pin 23 has a flange 24 near its upper end which end is secured in a hole in a fixing plate 22 by peening over the pin to form a head 26.
Patent GB-1024424-A (GB)
Title: Improvements in or relating to electrical inductance coil assemblies
IPC: H01F17/04
Filed: 1961-10-19
Abstract: 1,024,424. Inductors. E. K. COLE Ltd., and A. E. KING. Oct. 18, 1962 [Oct. 19, 1961], No. 37461/61. Heading H1T. An inductance coil assembly comprises a coi<SP>1</SP> 1 enclosed within a pot-type magnetic core forming a closed magnetic circuit and comprising sleeve 4 and end-members 3 having a central core 2 of magnetic material and a ferrite slug 7 being longitudinally adjustable to vary the spacing between the slug and the adjacent end-wall of the core to vary the inductance of the coil. Slug 7 is screwthreaded into bush 6, and if bush 6 is of a non- magnetic material, slug 7 is permanently magnetized. Disc 10 of magnetic material may be provided to increase the sensitivity of the coil to variations in the slug position. The coil connections may be similar to those shown in Specification 962,009.
Patent GB-860081-A (GB)
Title: Improvements in or relating to footwear quarters
IPC: A43B23/16
Filed: 1958-11-21
Abstract: 860,081. Counter stiffeners. BECKWITHARDEN Inc. Nov. 21, 1958 [Feb. 6, 1958], No. 37595/58. Class 17(2) A counter blank 11 impregnated with a hardening catalyst for a thermosetting resin is cemented to a larger liner 10 so that the margin of the liner is left uncovered. The liner is stitched to the upper as at 13 so that the stitching does not pass through the blank 10. Thermo-setting resin is applied between the blank and upper and the whole is heat and pressure moulded by conventional quarter moulding or heel-seat lasting. The resin may be a phenolaldehyde resin or an aminoplast such as an incompletely condensed urea aldehyde resin. The catalyst may be ammonium chloride, ammonium phosphate, phosphoric acid, or hydrochloric acid.
Patent GB-1219618-A (GB)
Title: Apparatus for acoustic examination of the lungs
Inventor: NEMEROVSKY LEONID ILICH
IPC: A61B7/00
Filed: 1968-08-07
Abstract: 1,219,618. Stethoscopic apparatus. VSESOJUSNY NAUCHNO - ISSLEDOVATELSKY INSTITUT MEDITSINSKOGO PRIBOROSTROENIA. 7 Aug., 1968, No. 37679/68. Heading H4J. An apparatus for the acoustic examination of the lungs comprises a pick-up (Fig. 2) having a base 3 on which is mounted an array of transducers 4 for converting vibrations of respective regions of the chest into electrical signals. Such signals are fed from each transducer to portions of a luminous screen corresponding to the location of the transducers 4 in the pickup. The luminous screen may comprise an array of incandescent lamps each of which is connected to a respective transducer (Fig. 6, not shown). The lamps are mounted on a common base in relative positions corresponding to the relative positions of the respective-transducers. Alternatively the luminous screen comprises a cathode-ray tube (Fig. 7, not shown). The electric signal from each transducer is fed to a switch in a control unit and is amplified, filtered and then applied to the cathode-ray tube. As shown, the base 3 is in the form of a hollow elastic chamber 5. The transducers 4 are disposed in cells. Alternatively the base (3), Fig. 3 (not shown), is an array of plates hinged together and carrying rigidly mounted transducers (4). Another embodiment has the transducers (4), Fig. 4 (not shown), coupled to the base (3) by spring-loaded arms (6). In a further embodiment the transducers (4), Fig. 5 (not shown), are rigidly attached to the base and are provided individually with flexible sound conduits (7).
Patent GB-1356452-A (GB)
Title: Electrical strain gauge
IPC: G01L1/26
Filed: 1971-08-11
Abstract: 1356452 Electrical strain gauges HOTTINGER BALDWIN MESSTECHNIK GmbH 11 Aug 1971 [10 Oct 1970] 37801/71 Heading G1N In order to compensate for creep in an electrical strain gauge the gauge Fig. 2 comprises half length grids sandwiching or in combination with a full length grid, the wave crests or troughs of the grids being situated on an outer periphery and also within the area encompassed by the periphery. In Figs. 3 and 4 the gauge comprises only half length grids or half length grids in combination with even shorter grids.
Patent GB-1004798-A (GB)
Title: An improved moulding clip
Inventor: MUTTER MAX
IPC: F16B5/12
Filed: 1963-09-26
Abstract: 1,004,798. Clips. A. V. RAYMOND, [trading as A. RAYMOND DRUCKKNOPS & METALLWARENFABRIK]. Sept. 26, 1963 [Sept. 27, 1962], No. 37949/63. Heading E2B. A resilient clip 10 for attaching a moulding 12 to an apertured panel 14 comprises a loop 18 gripping a rib 42 with its arms 22, 24 which are extended as limbs 26, 28 bent to form pockets 32, 34 embracing the edges of the aperture and to form feet 36, 38, substantially at right-angles to the limbs, one of which may be extended to form a release tag 40. The arms 22, 24 may be parallel to one another or they may be formed with inwardly directed claws. The clip may be mounted in an elongated aperture and held by turning it through a right-angle.
Patent GB-1464905-A (GB)
Title: Return device for a direction indicating switch on the steering column of a motor vehicle
IPC: B60Q1/42
Filed: 1974-08-30
Abstract: 1464905 Direction indicator switches for road vehicles SWF-SPEZIALFABRIK FUER AUTOZUBEHOER GUSTAV RAU GmbH 30 Aug 1974 [7 Dec 1973] 37988/74 Heading G4Q A return device for a direction indicator switch on the steering column of a road vehicle comprises a switch housing 11, a switch member 14 movable into either one of two adjacent locked operating positions by a switch lever from a centre-off position, and a release member 20 mounted to rotate on the switch member 14; the release member 20 has two release springs 21, 22 extending in opposite directions from the centre of rotation contacting a guide 12, 13 on housing 11 so that when member 14 is moved to a locked operating position e.g. 17 the associated release spring e.g. 21 is deflected into the path of movement of a release pin 19 mounted on the steering wheel and springs 21, 22 being such that pin 19 bends a deflected release spring e.g. 21<SP>1</SP> when the wheel is turned from the straightahead position but returns switch member 14 to the centre-off position 16 when the wheel is returned to the straight-ahead position. The release member 20 consists of a sleeve 20 on which both release springs are formed and that sleeve is mounted to rotate on a bearing pin 18 of member 14. A locking spring 30, 31 is formed on sleeve 20 and engages in a groove 29 on member 14. The release springs are guided by a wall 13 of a ridge 12 on the switch housing. The release member 20 is interchangeable.