baber/WOPTO huggingface dataset:
Patent GB-937399-A (GB)
Title: Gland packing
IPC: F16J15/20
Filed: 1962-08-17
Abstract: 937,399. Stuffing-boxes. SULZER FRERES S.A. Aug. 17, 1962 [Aug. 17, 1961; Oct. 20, 1961], No. 31727/62. Class 122 (5). A sealing gland assembly comprises at least one lipped sealing ring having a lip part 2, Fig. 1, in contact with a member 18 to be sealed and a shorter and stouter supporting part 3 pressed at its back 9 by means of a ring 1 axially against a ring 5, the facing surfaces 4, 8 of the part 3 and of the ring 5 being so disposed in relation to each other that, when only a light axial tightening force is applied to the gland, they are only partially in contact and a gap 16 is left between them which widens radially outwardly from the lip, the gap being progressively narrowed as the axial tightening force is increased. The surfaces 4, 8 are of frusto-conical shape; alternatively, one or both of the surfaces may be curved in cross-section. The back 9 of the part 3 is curved, or it may be straight, and the corresponding surface 12 of the ring 1 is of similar shape. In Fig. 6, the surfaces 4, 9 of the part 3 are arcuate and the surfaces 8, 12 of the rings 1, 5 are normal to the gland axis. An opening 43 may be provided in the region of the supporting part 3 where its inner boundary wall 6 adjoins the lip 2. The lipped ring may be made wholly of one material, Fig. 1, such as rubber, fabricreinforced rubber or a synthetic plastic such as nylon; alternatively, Fig. 6, the lip may be made of synthetic plastic and is bonded at the surface 40 to a resilient metal part 3. In Fig. 7, the lip 2 is fastened on or in the supporting part 3 which is in the form of a dished ring, the faces 4, 9 of which are inclined to the gland axis. Alternatively, these faces are normal to the axis and the faces 8, 12 of the rings 1, 5 are inclined. The maximum deformation of the part 3 on tightening is limited by the maximum axial dimension U of the cavities 16, 44. In Fig. 2, two groups of rings 19, 19<SP>1</SP> act in opposite direction to prevent passage of fluid medium respectively from spaces 21, 23 towards a space 22. The rings are mounted in radially adjustable cylindrical casings 25, 25<SP>1</SP>. A ring 20 or 20<SP>1</SP> disposed between two lipped rings engages respectively the back of one and the front of the other of said rings. When tightening the gland, e.g. of Fig. 1, the resultant of the reaction forces at the contact area between the surfaces 4, 8 produce with the opposing tightening force a couple, Fig. 3, which cause deformation of the lip 2 radially inwards thus increasing its contact with the member 18. As tightening increases the contact area between the forces 4, 8 increases and the resultant of the reaction forces gradually shifts its line of action radially outwards. Under these conditions the couple exerted reaches a maximum value until, upon further tightening, it is finally reversed resulting in the lip being lifted away from the member 18. and seizure between the lip and the member is avoided in case of excessive tightening of the gland,
Patent GB-640233-A (GB)
Title: Improvements in or relating to change-speed gears
Inventor: TARLTON FRANK HENRY
IPC: F16H3/10
Filed: 1946-10-25
Abstract: 640,233. Freewheel clutches. ROLLSROYCE. Ltd. Oct. 25, 1946, No. 31776. [Class 80(ii)] In a change-speed gear in which a freewheel coupling is used in at least cne ratio, such as is described in Specification 640,228, means are provided which co-operate with the locking balls or rollers to render them inoperative during reverse rotation of the driven member. The roller cage of a jamming roller free wheel having a driving member 26, rollers 28 and a driven member 27, has a cylindrical surfaced extension 32 encircled in the opposite direction to normal rotation by a brake band 33. One end 34 of the band is anchored to the gear casing 35 and the other is free, so that on normal rotation the cage is allowed to rotate freely, but on reverse rotation of the driven member 27 the band grips the cage and prevents it from moving to the locking position. The device is primarily intended for use in vehicle gearboxes to prevent locking of the gears when the vehicle is stopped facing up an incline with a gear other than the one coniprising the free wheel engaged. In a modification, Fig. 5 a spring circlip 38 has one end 39 engaged with a shoulder 40 on the driving member 26 and the other end 41 engaged with a lug 42 on the roller cage 31. This circlip normally holds the roller cage in the inoperative position until the speed of the cage in the forward direction is high enough to produce sufficient drag from the band brake 33 to overcome the circlip. On reverse rotation the brake band tightens and holds the cage in the inoperative position. Another modification comprises a ball thrust bearing used as a differential to rotate the roller cage in the opposite direction to the rotation of the driven member. In a further modification a friction brake is applied to the cage by the operation of the fourth and third speed dog clutch to overcome the effect of a circlip similar to that employed in the embodiment shown in Fig. 5.
Patent GB-869706-A (GB)
Title: Improvements in and relating to signal processing systems
IPC: H04N5/14
Filed: 1958-10-07
Abstract: 869,706. Non-linear circuits. PHILCO CORPORATION. Oct. 7,1958 [Oct. 14, 1957], No. 31952/58. Class 40(6) [Also in Group XL(b)] A signal transfer system includes a non-linear amplifier means having a gain that decreases for input signals of greater amplitude, over at least a limited range of amplitude values, followed by a signal limiting means for passing only those variations in amplitude of output signal which lie between two selectable amplitude levels. In the embodiment shown, a negative 10 is scanned by means of a flying spot scanner and the light passing through the negative intercepted by a photo-electric pick up device 18. The output from this pick-up device is fed into a non-linear amplifier 20, for example a logarithmic amplifier or a gamma correction circuit, followed by a linear amplifier 22 and a clamp 24. The signal at the output of the clamp is fed to two clipper circuits 26 and 28 in cascade and then through a variable gain linear amplifier 30 to the indicator 12. The two clipping circuits have manual controls 32 and 34 which are adjustable to allow only portions of the signal lying between two selectable amplitude levels to be passed to the amplifier 30. The first of these clippers 26 comprises a series diode 80 coupled between the output of a cathode follower 40 and the input of a cathode follower 82. A third cathode follower 90 has its grid connected to a potential divider across the HT supply, and its cathode is connected via a resistance 86 to provide bias for the diode 80. The diode will only conduct when the input signal is more positive than the bias, and the lower limit of signal passed by the clipper may therefore be set by the control 32 on the potentiometer 94 which varies the bias on the grid of the valve 90, and hence the potential at its cathode. Variable resistors 96 and 98 allow adjustment of the range over which the control operates. The second clipper 28 is similar to the first except that the diode 104 is connected in reverse polarity, so that it conducts only when the input signal is less positive than the bias determined by the setting of control 34. The portion of the signal thus selected may then be amplified to occupy the full range from black to white, or alternatively the signal may be fed into a colour converter, so that different shades appear on the indication display as different colours. Instead of representing different densities on a photographic negative, the input signal may depend on other factors, for example luminosity of a phosphor screen or reflectivity of a surface.
Patent GB-806039-A (GB)
Title: Improvements in electrical moving coil instruments
Filed: 1956-10-19
Abstract: 806,039. Moving coil instruments. PARKER, L. W. Oct. 19, 1956, No. 31979/56. Class 37. The moving coil of an electrical instrument is formed by conductive strip attached to an insulating surface of a disc. Figs. 2A and 2B show how the strips may be arranged on both sides of a single disc to produce four coils which operate in two magnetic gaps. A greater number of turns may be provided by building up alternate layers of insulating material and conductive strip. Fig. 1 shows a disc 13 pivoted to rotate about the axle 16 so that the coils operate in the gaps between the magnets 15, which may be ceramic type magnets. The elements 20 which may be of iron or similar material, form the supporting frame of the instrument and also the magnetic return path. Hair springs are used in the usual manner to provide a restoring torque and electrical connections to the coil. The disc may be flat or conical and may have a turned-up edge to which a scale may be fitted. The disc may be made of an insulating material, such as celluloid or it may be made of aluminium alloy, with an insulating coating of aluminium oxide, or of iron. In Fig. 5 (not shown), a number of instruments are mounted together having the magnets in series and using a common magnetic path. If the permanent magnets are replaced by soft iron the instrument will respond to A.C. The coils may also be used in a dynamometertype instrument. Specifications 708,127 and 747,724, [both in Group XXXV], are referred to.
Patent GB-428620-A (GB)
Title: Improved process and apparatus for the treatment of cereal germ
IPC: A23L7/152
Filed: 1933-11-16
Abstract: To cook or sterilize cereal germ-with or without admixtures such as salt-the material is passed slowly by a screw conveyer through a cylindrical vessel having a jacket supplied with heating fluid such as steam at a temperature of about 230-265 DEG  F., and is then subjected, in the same vessel, to the direct application of steam which is introduced through pipes near the outlet end of the vessel; the treated germ is thereafter dried and cooled.  The discharge chamber of the vessel may be provided with a conduit leading to an exhaust fan so as to create a gentle current of air or steam towards the outlet end of the vessel.  The rate of travel of the material is such that the germ has a dry heat treatment for about 10 to 15 minutes, and is then subjected to direct steam treatment for about 5 minutes.  Specification 12736/86, [Class 58], is referred to.
Patent GB-748239-A (GB)
Title: Hydrogenation process
Inventor: LACEY RICHARD NORMAN
IPC: C07C45/41
Filed: 1953-11-19
Abstract: A saturated aliphatic ketone is obtained by hydrogenating with molecular hydrogen an a :b -ethylenically unsaturated ketone in the vapour phase at a temperature in the range 100-300 DEG  C. in the presence of a supported palladium catalyst.  The catalyst may contain 0.1-2.0 per cent palladium, which is supported on a - or g -alumina, silica gel, "Carborundum" (Registered Trade Mark), charcoal, pumice or kieselguhr.  As starting materials there may be used methyl vinyl ketone, ethylidene acetone, methyl isopropenyl ketone, mesityl oxide, isobutylidene acetone and hept-2-en-4-one.
Patent GB-392231-A (GB)
Title: An improved method of and means for building and reinforcing the walls of tunnels, shafts and the like
IPC: E21D11/00
Filed: 1931-11-19
Abstract: 392,231. Culverts. MoALPINE, SIR M., 50, Pall Mall, London. Nov. 19, 1931, No. 32140. [Class 33.] Tongued and/or grooved ring segments a of concrete or the like and each having one or two uniform, fish-tailed or indented reinforcing bars b wholly embedded therein substantially parallel to the circumferential jointing surfaces, are arranged with the longitudinal joints g of one ring staggered with respect to those of adjacent rings. A reinforcing ring h disposed in the deepened interlocking groove e is provided in the case of segments having each only one bar b and may be provided in the case of segments having each two bars b. Specifications 15724*/03, [Class 20, Buildings &c.], 4079/10, [Class 85, Mining &c.], and 2055/12, [Class 20 (i), Buildings and structures, Kinds &c. of], are referred to.
Patent GB-324425-A (GB)
Title: Speed governor for gramophones
IPC: G11B17/02
Filed: 1928-11-05
Abstract: 324,425. Steidinger, C., and Steidinger Ges., Geb. Nov. 5, 1928. Speed regulating; stopping.-The speed-regulating lever is attached to a sleeve embracing the turntable spindle and frictionally engaging another sleeve extending through the motor board to transmit movements of the lever to the brake pad of the governor. The attachment of the lever to the sleeve may permit of relative movement, whereby the lever stops the turntable. The lever 11, Fig. 2, with upturned end, is attached by screw 13 to a lug 10 on a sleeve 12, Fig. 1, which engages frictionally with a sleeve 6 supported on a plate 2 and connected to a disc 3 by screw studs 7 passing through arcuate slots in the plate 2. A lug on the disc 3 engages a notch 4 in a bracket 5 supported to slide in guides and carry the brake pad 9 for the governor disc 8, which pad can thus be adjusted by movement of the lever. The turntable can be arrested by sliding the lever 11 inwardly on the lug 10 so that its upturned end is in the path of a projection on a spring clip f embracing the turntable boss.
Patent GB-1012980-A (GB)
Title: D.c. voltage control with load current limitations
IPC: G05F1/573
Filed: 1964-08-07
Abstract: 1,012,980. Automatic voltage controL STANDARD TELEPHONES & CABLES Ltd. Aug 7, 1964 [Aug 9, 1963], No. 32220/64. Heading G3R. A D.C. voltage regulator comprises input terminals Ue, 0; output terminals Ua, 0; a regulating transistor TS and a resistor R1 connected in series between terminals Ue and Ua; a voltage divider constituted by Zener diode Z1 and resistors R3, R2 which shunts the collector-emitter path of the transistor TS; a resistor R4 and a Zener diode Z2 connected in series between the junction of R2, R3 and the terminal Ua; a control voltage source Ur for controlling transistor TS in known manner in dependence upon output voltage variations; and a circuit including transistors T1, T2, resistors R5 to R8, and an auxiliary voltage source Uh associated as shown with transistor TS and control source Ur. In normal operation Zener diode Z1 is blocked and transistors T1, T2 are non-conductive; when the load current increases to a maximum permissible value, T1 is rendered conductive by the voltage drop across resister R1 whereby transistor T2 conducts to limit the control voltage Ur in such a way that transistor TS is controlled so that the load current is maintained constant. In consequence the collector-emitter voltage of transistor TS increases until first the Zener diode Z1 and then the Zener diode Z2 conducts to affect transistor T1, the arrangement being such that the transistor TS is controlled so that the curve of the function of its collector current as dependent on the collectoremitter voltage corresponds approximately to the hyperbolic curve of the permissible power loss of the transistor TS (Fig. 1, not shown). The circuit is thus protected both against overload and against excessive power dissipation in the regulating transistor TS.
Patent GB-1407170-A (GB)
Title: Battery operated electrical device
IPC: H01M2/10
Filed: 1973-07-06
Abstract: 1407170 Stud and socket fastenings MOTOROLA INC 6 July 1973 [9 Aug 1972] 32327/73 Heading E2B [Also in Divisions F2, H2 and H3]  In a battery operated electrical device including a first housing part 10 arranged to contain electrical equipment such as a radio or an electric shaver and a second housing part 16 arranged to contain a battery, the first and second ports are detachably interconnected by a projection 24 on one part and a matching opening 18 in the other part which have a first relative position where the projection 24 may be inserted in the opening 18 and a second rotary displaced relative position where the projection 24 is held in the opening 18 and an arcuate-shaped rib 28 on one part is received in a slot 22 on the other part with the rib 28 moved into locking engagement within the slot 22 as the projection 24 is rotated to the second position within the opening 18. In the radio device shown part 16 has contacts 40 which engage spring biased contact surfaces 44 secured to the housing 10. When assembling the parts 10, 16 a protruding lip 26 on the projection 24 is inserted into a cut out 20 of the opening 18 and the rib 28 is inserted into the slot 22. By rotating the housing parts the lip 26 fits into a cavity 21 to lock the parts together. Also the wedge shaped rib 28 enters the wedge shaped slot 22 to provide a second interlocking connection between the housing parts. When assembled the projecting end 30 engages an end 25 of a side 23 on the housing 10. The housing parts 10 and 16 can be moulded of plastics material or die cast in metal. A latch 32 is provided which includes a spring biased slide (33, Fig 4, not shown) having an end 36 which has to be pressed in to disengage a projection 35 extending from the slide (33) from a notch 39 on the rib into a recess 38 in the housing part 10 so as to allow rotary disengagement of the housing parts.
Patent GB-1286242-A (GB)
Title: An improvement in or relating to angling rod bite indicators
Inventor: MARTIN ALBERT BRIAN
IPC: A01K97/12
Filed: 1968-07-06
Abstract: 1286242 Bite indicator A B MARTIN 3 Oct 1969 [6 July 1968] 32362/68 Heading A1A A bite indicator consists of a hollow flexible tube attached to a rod ring through which the line passes. A bite is indicated by a change in position of the end of the tube. Alternatively the tube may be rigid but attached to the rod by an offset flexible member (36), Fig. 3 (not shown).
Patent GB-1144489-A (GB)
Title: Process and apparatus for successively withdrawing single articles from a stack
IPC: B65H3/10
Filed: 1966-07-19
Abstract: 1,144,489. Feeding and delivering sheets. KALLE A.G. 19 July, 1966 [21 July, 1965], No. 32404/66. Headings B6B and B6H. Sheets 25 are separated from a stack by suction through perforations 6 in a rotating drum 5, stationary walls 7, 8 defining a suction chamber 10 communicating with a suction source through a stationary hollow shaft 2. The pile support 21 is raised by an hydraulic ram 23. The sheets are interleaved with plastic films 31 secured in a clamp 32 and not covering the leading edges of the sheets. The sheets are stripped from the drum by an air nozzle 26 and delivered by a chain 27.
Patent GB-1349559-A (GB)
Title: Modulators
IPC: H03L7/24
Filed: 1971-07-09
Abstract: 1349559 Frequency modulation systems TELEFONAKTIEBOLAGET L M ERICSSON 9 July 1971 [10 July 1970] 32450/71 Heading H3R A frequency modulation arrangement comprises a first oscillator Tr1, k 1  synchronized by a second oscillator SY, with a modulation signal M applied to both oscillators, the oscillator SY having a lower noise level. The first oscillator, comprising a gunn-diode-R and cavity k, is modulated by varactor MO 2  and its output is fed via circulator C1 to aerial LO. The synchronizing oscillator SY, operating at a lower frequency than the first, is modulated by MO1 and the resulting output is multiplied up at MU to the same frequency as the first. The resulting signal is then also fed to the circulator C1.
Patent GB-320259-A (GB)
Title: Improvements in or relating to baths
IPC: E03C1/04
Filed: 1928-11-07
Abstract: 320,259. Shanks, W. Nov. 7. 1928. No Patent granted (Sealing fee not paid). Shower and spray baths; overflow, supply, and waste fittings.-A screen or canopy bath 1, Fig. 2, with spray and shower fittings is splayed at the end to receive the screen, which comprises plates 24 fitted into recesses 25, Fig. 12. in pillars, certain pillars having removable members 26. The bottom portion of one pillar is constituted by a casing 12 fitted with mixing and control valves, a pipe 27 leading from this casing through the interior of the pillar and being conrected to a shower fitting 34. A battery of spray pipes 38 removable as a unit is connected to the casing 12 by a pipe 36. A combined waste and overflow fitting 4 disposed in a recess in the end wall is operated from a knob 7 by mechanism concealed by a casing 3, and exposed piping is connected by means of ground joints.
Patent GB-466419-A (GB)
Title: Improvements in or relating to radio receivers for television and the like
IPC: H04N5/08
Filed: 1935-11-23
Abstract: 466,419. Television. BAIRD TELEVISION, Ltd., and MERDLER, L. R. Nov. 23, 1935, No. 32493. [Class 40 (iii)] For demodulating a carrier wave modulated by television and like signals in which are interpolated synchronizing impulses, and for separating the latter from the picture signals, two diodes (shown as a double diode V1) are arranged in push-pull connection, so as to produce potential variations across an impedance R1 in the grid circuit of an amplifying valve V2, which valve is so connected that potential variations appearing across an impedance R6 in its cathode lead are applied to the control grid of a valve V3 which always has a positive impedance and operates as an anode-bend detector to transmit the synchronizing impulses to a scanning generator via a condenser C3. The potentials developed across a resistance R2 in the anode lead of the valve V2 are applied to the modulating electrode of a cathode-ray tube through a condenser C2. As shown, the modulated carrier or an intermediate frequency carrier derived therefrom is applied to the valve V1 through a transformer T. By suitably regulating the mean amplitude of the modulated carrier, the D.C. potential developed across R1 provides sufficient negative bias for the valve V2. Negative bias applied to the grid of the triode V3 through a resistance R5 is such that current does not flow unless a positive impulse is applied to the grid.. In modi. fications : the valve V3 may be automatically biassed by means of a decoupled resistance included between its cathode and earth; the valve V3 may be a four- or five-electrode valve ; the two diodes may be contained in the, envelope of the amplifying valve V2.
Patent GB-1055272-A (GB)
Title: Novel phosphorus-containing polyethers
IPC: C07F9/10
Filed: 1963-09-30
Abstract: The invention comprises a phosphorus-containing polyether obtainable by reacting an epihalohydrin and a polyol component which comprises a sugar alcohol containing 5 or 6 carbons, a triol and orthophosphoric acid as described below.  The reaction is suitably effected in the presence of an acidic fluorine-containing compound as catalyst, e.g. fluoboric acid.  The term orthophosphoric acid includes strong phosphoric acid which contains in addition to orthophosphoric acid, pyrophosphoric acid and possibly higher polyphosphoric acids.  In an example a mixture of glycerine, sorbitol and phosphoric acid is heated to 85 DEG  C., fluoboric acid is added as catalyst and the temperature maintained between 86 DEG  C. and 92 DEG  C. during the addition of epichlorhydrin, and the mixture allowed to stand for 2 hours after the addition.  The reaction mass is neutralized with triethanolamine.  The epihalohydrin is preferably epichlorhydrin and the ratio of the number of moles of epihalohydric to the number of hydroxyl groups in the polyol component is preferably 0.5: 1 to 6: 1. The polyol component is preferably a mixture of from 80 to 30 equivalent weight per cent of the sugar alcohol, preferably sorbitol, and 20 to 70 equivalent weight per cent of the triol, preferably glycerine, and orthophosphoric acid taken together, and the amount of orthophosphoric acid is preferably such that the polyether contains 0.3 to 2.5% by wt. of combined phosphorus.
Patent GB-279677-A (GB)
Title: Improvements in apparatus for heating or cooling water
IPC: F24H1/16
Filed: 1926-12-23
Abstract: 279,677. Urwand, H. Dec. 23, 1926. Water-tube boilers.-A conical coiled tube 1 with hood 6 and conmections 2, 2<a> to a water supply and a point of delivery so that water passes upward through the coil, is adapted to be placed on a heating means. Reference has been, directed by the Comptroller to Specification 17487/91.