baber/WOPTO huggingface dataset:
Patent GB-1031116-A (GB)
Title: Self-energizing disc brakes
IPC: F16D65/18
Filed: 1962-11-30
Abstract: 1,031,116. Hydraulically-operated disc brakes. F. J. C. HOPE. Nov. 25, 1963 [Nov. 30, 1962], No. 45542/62. Heading F2E and F2F. A disc brake for a wheeled vehicle includes a torque arm 2 pivotably mounted on a wheel axle 3, friction pads 5 housed in one or more calipers 1 mounted on the torque arm, an hydraulic system effective to move the friction pads into frictional contact with the brake disc and cam means 8, 9 operable hydraulically on pivotal movement of the torque arm 2 to increase the braking pressure exerted by the friction pads on the disc. The source of fluid pressure comprises two master cylinders 20, 21 operable by the driver of the vehicle such that the first master cylinder 20 causes the friction pads 5 to be applied through a restrictor valve 24 and the hydraulic connection 12 and subsequently the second master cylinder 21 is applied to cause the hydraulic pressure supply system to the brakes to be isolated from the first master cylinder 20 by means of the piston 25 controlling flow through the restrictor valve 24 so as to prevent servo back pressure reaction on the master cylinder 20 after the brake pads have been actuated. Fixed stops (not shown) may be provided on the axle casing to limit the arcuate movement of the torque arm 2 when the follower piston 9 reaches the limits of the cam profile 8.
Patent GB-1410821-A (GB)
Title: Power conversion apparatus and system therefor
IPC: H02M5/27
Filed: 1972-10-04
Abstract: 1410821 Converting PROGRAMMED POWER Inc 4 Oct 1972 [18 Oct 1971] 45753/72 Heading H2F A frequency changer or reversible rectifier comprises a bridge 16 of SCR's 1 ... 4 one diagonal of which is supplied with power at a first higher frequency from a centre-tapped winding 20, the other diagonal being bridged by a centre-tapped auto-transformer 19. The input voltages from winding 20 are integrated at 26 (Fig. 6) and compared with an A.C. or D.C. reference and with the current circulating in the auto-transformer 19 so as to determine the time and order of conduction of the SCR's 1 ... 4 and thus maintain constant output voltage. After filtering at 22, 23, the output voltage Eo is either D.C. equivalent to the reference D.C. or A.C. of lower frequency than the input from 20 and of waveform, e.g. sine wave, following the A.C. reference. As described, D.C. references or A.C. references from 180-4000 Hz are selected by switch 33. The current in winding 19 is monitored at 58, 59 and compared with references 66 and 54 so as to provide current limitation of the output. In Fig. 2A (not shown) transformer 20 is an autotransformer having balanced input tappings. Figs. 3-5, and 7 (not shown) depict waveforms showing how the magnitude and polarity of the output is governed by controlling the firing angles of the SCR's 1...4. In Fig. 1 (not shown) the high frequency input is obtained from an inverter which feeds several bridges 16 each with its respective load.
Patent GB-1183687-A (GB)
Title: Coaxial Cable Connector.
IPC: H01R13/646
Filed: 1968-09-26
Abstract: 1,183,687. Co-axial connectors. UNITEDCARR Inc. 26 Sept., 1968 [9 Oct., 1967], No. 45790/68. Heading H2E. - A coaxial cable assembly comprises a connector having a hollow body member 36 forming part of a housing 18 and a coaxial cable assembled with the body, a portion of the cable spaced from one end being enclosed in a sleeve 14 extending through an axial slot in member 36, the end cable portion extending beyond said sleeve, being bent to extend within the member and being clamped to the member adjacent an aperture in its base portion. As shown, the housing 18 includes the body member 36 and a shell 32, the two parts being locked by means of grooves and a C-ring 52. An inner pin contact 54 is attached by, e.g. soldering, to the inner conductor 56 of the cable, after engaging an insulating bushing 58, and the sealing sleeve 14 of e.g. neoprene, which has an external groove 22 slipped on to the cable. A clamping nut 16 is then threaded on to the cable and press fitted into the body member 36 and the cable is bent so that the groove 22 is engaged with the edge of the holding slot 50. A compressor clamp 12 secures the sealing sleeve 14 and the whole is enclosed by a cap 10, after filling the cavity of the body member 36 with conductive packing material 62, e.g. conductive epoxy resin.
Patent GB-460605-A (GB)
Abstract: 460,605. Sliding - folding casement windows. GIBBS, J., and GIBBS, Ltd., J. Aug. 28, 1935, No. 24030. [Class 20 (iii)] One or each of the sashes of a sliding-folding window situated next a jamb is pivoted to two arms or links rigidly connected to a pivot-rod or tube 22 on the frame or jamb, and adapted to lie between the sash and jamb when the window is open. The pivotal connection 24 between the sash and arms lies approximately midway between the position of the sliding pivot 20 and the edge which lies adjacent to the frame when the window is closed. The sashes of the window are pivoted between their vertical edges and lie perpendicularly to the window when opened. The pivots preferably comprise ball bearings engaging the sides of channel frame members, and the lower pivot has a ball support 33. A pivoted draught-excluding flap 39, Fig. 4, may be provided. The pivot-rod 22 is mounted in brackets projecting from the outside of the frame so that the arms may lie parallel or perpendicular to the frame.
Patent GB-1439632-A (GB)
Title: Pesticidal thiolphosphoric acid esters
IPC: C07F9/18
Filed: 1973-06-07
Abstract: 1439632 Pesticidal thiolophosphoric acid ester CIBA-GEIGY AG 7 June 1973 [8 June 1972 7 May 1973] 46087/75 Divided out of 1439631 46087/75 Heading C2P Novel compounds of Formula I where R 1  is methyl or ethyl, R 2  is i-butyl, secbutyl, n-pentyl, methoxymethyl or ethoxyethyl, R 3  is Cl, Br or CH 3  and n is 0 or 1, may be prepared (a) by reacting a corresponding O - alkyl - S - alkylthiophosphorochloridate with a suitable substituted phenol in the presence of an acid acceptor or with a salt of the phenol, (b) by reacting a corresponding O- alkyl - O - substituted phenylphosphorochloridate with a suitable mercaptan in the presence of an acid acceptor or with a salt of the mercaptan or (c) by reacting a corresponding 0,0 - dialkyl - O - substituted phenyl phosphate with a compound R 2 Hal and with a compound (R<SP>1</SP> 3 ) 3 H or MeSH where R<SP>1</SP> 3  is alkyl and Me is alkali metal, NH 4  or alkylammonium. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredient in conventional pesticidal compositions.
Patent GB-1406343-A (GB)
Title: Playback device
IPC: G03B31/04
Filed: 1973-10-03
Abstract: 1406343 Reels K VOCKENHUBER and R HAUSER 3 Oct 1973 [3 Oct 1972] 46181/73 Heading B8M [Also in Division G5] A film projector 1 receives separate cassettes 3, 4 containing respectively a film and an associated sound track, senses code markers on the cassettes and indicates the presence or absence of identity between the code markers of the two cassettes, in order to avoid the accidental projection of a film with an incorrect sound track. The code markers may be reflective patches co-operating with a photoelectric system, or conductive patches sensed by feeler contacts, or projections which change over switch contacts or are sensed by a lever which tilts to lock a control switch in the case of a mismatch. The code markers may be scanned in sequence or sensed simultaneously when the cassettes are fully inserted or sensed sequentially in pairs during insertion of the two cassettes together in a holder. The sensing system may be disabled by the insertion of cassettes of a different shape having no code markers.
Patent GB-1312853-A (GB)
Title: Video tape recorders
IPC: H04N5/783
Filed: 1970-09-29
Abstract: 1312853 Video tape recorders SANYO ELECTRIC CO Ltd 29 Sept 1970 [30 Sept 1969 (3)] 46338/70 Heading G5R A helical scan rotary head video tape recorder extends the recording time available with a given tape by running the tape at (1/n)th. of its "normal" rate and recording odd and even fields at intervals of (n - 1) fields; during replay, the tape is run at the same reduced speed and the head assembly therefore scans the video track n times. Fig. 7 shows tracks 103, 105 &c. recorded at normal tape speed and M 1 , M 2 , M 1 <SP>1</SP> &c. tracks swept out with the tape running at (1/@)th. normal speed; odd and even fields are then selected and recorded at four-field intervals in synchronization with control signals 101, 102. The respective fields fed to the respective heads H 1 , H 2  (Fig. 8) are selected from an input 135 by two circuits 127, 128 which comprise pulse delay networks 129, 130, of differing delay periods, which are activated by pulses from a network 111 which includes a (1/n) frequency dividing circuit 125; the (1/n) pulses are also fed to the control head He and provide pulses 101, 102 (Fig. 7) at the same tape spacing as for " normal " recording. The rotation rate of the heads H 1 , H 2  is maintained constant by a servo system 110 (Fig. 8) including a pick-up. 118, a phase comparator 120, and a brake 121, and the scanning angle error caused by the reduced tape speed is compensated by a system (Figs. 5, 6, not shown) as described in Specification 1,268,657. The extended period tape may be played back at the same speed as it was recorded, or in quick motion at a " normal " tape speed. The recorder may also provide for slow motion replay of a normal tape with facilities as described in Specification 1,273,749, or for still motion replay with facilities in the first mentioned Specification; this first Specification also contains details of the transport systems used in the present Specification.
Patent GB-1329443-A (GB)
Title: Method of manufacturing a perforated plate
IPC: C03B33/00
Filed: 1970-09-30
Abstract: 1329443 Moulding perforated plates PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Sept 1970 [3 Oct 1969] 46566/70 Heading B5 [Also in Divisions C1 and H1] In a method of manufacturing a number of identical perforated plates, tubes 2 are supported, in parallel, in aligned, identical, perforated base plates 4 in a mould 5, and a molten mass 1 of plate forming material, having a temperature lower than the softening temperature of the tube material, is provided in the mould around the tubes; after hardening of the mass 1, the block so formed is removed from the mould, and is sawn transversely of the longitudinal axis of the tubes to form thinner, identical perforated plates. The tubes may be of ceramic, metallic or hard glass material. The plate forming material, which may be introduced into the mould in molten form, or as a powder or paste which is melted in the mould, may be glass or ceramic. The plates when formed may be heated until deformable and then bent around a mandrel to form cylindrical members having radially directed holes (Fig. 5, not shown).
Patent GB-1514498-A (GB)
Title: Factory mixed mortar for binding masonry or bricks or providing plaster and a method of providing such mortar at and distributing it at a building site
IPC: C04B28/02
Filed: 1975-11-12
Abstract: The factory-produced ready-mixed masonry mortar or plastomortar has a workability time of two to fourteen days. The masonry mortar or plastomortar is provided with substances for preventing freezing down to temperatures of -7 DEG C, with setting retarders and water retention means for retaining the required amount of water for hydraulic setting. Despite the long workability time, after working the mortar sets perfectly within a relatively short time, possesses an adequate stability in the joint and attains the required strength values.
Patent GB-1451625-A (GB)
Title: Serially operating interface adapotr
IPC: G06F13/00
Filed: 1973-10-08
Abstract: 1451625 Digital transmission PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 Oct 1973 [11 Oct 1972 (2)] 46920/73 Heading H4P An interface unit including a modulator and demodulator operates between data input and output apparatus which unit generates command signals and receives stator signals, and a transmission channel having a clock line and an information line. The unit comprises a bit pair generator having even and odd states motivated by clock and information inputs and activated under control of a clock start signal; this itself is switchable between states also under control of clock signals. The generator produces pairs of signal elements of alternating parity on both lines, the signal on the clock line corresponding to an inverted/non-inverted information signal in the case of odd/even parity respectively, the switching being halted under the control of a block stop signal, bits having the same parity being produceable as frame signals. The demodulator, connected to both lines, comprises a four bit parity detector which recovers block start/stop signals; a clock signal recovery unit adds a signal transition to a clock signal element under the control of a block start with signal transitions received on an information line being suppressed under control of a block stop signal. In the station shown in Fig. 5 register 1 receives information, e.g. from a terminal, in parallel form (in manner not shown) and register 4 decodes part of it to prime one of ANDs 5, 6 allowing clock signals from CL through monostable circuit MON to L1 or F1. After an information interval, if G6 is primed the input FT1#1 and the inverted output of F1 also #1. F2 is a data flip-flop the state of which is maintained until the beginning of the next information bit. From its inputs, circuit L2 performs a logic combination which is applied via ORs G2, G4 and amplifiers LT1, LT2 to terminals K1, K2 which may be in phase or antiphase with signals FT 1. Input signals on terminals K3, K4 pass through receivers LV3, LV4 into Exclusive OR coincidence circuits L3, L4 which form signals L-P. During the transmission of information, output signals alternate between 0 and 1 thus forming information clock pulses. R.C. elements DEL1, DEL2 act as low pass filters of half bit length delay. Thus differences in delay times on lines (DFX, TFX), Fig. 3 (not shown), are nullified together with interference signals. During transmission of frame clock signals line M= 1 and signals on L, M control flip-flop F3 which is interconnected with L4 and another flip-flop F4, the latter supplying signals to register 4. Logic circuit L5 receives delayed clock pulses DT2, DT2 through F3 also binary signal DFX from terminal K3. The edges of delayed clock pulses sample the centre of bits DFX and store the result in a bi-stable (not shown) in L5 hence at the output of L5 information signal D2 is supplied to REG2.
Patent GB-1335780-A (GB)
Title: Coupling for dental handpieces
IPC: A61C1/18
Filed: 1972-10-11
Abstract: 1335780 Coupling for dental handpieces KALTENBACH & VOIGT 11 Oct 1972 [13 Oct 1971 1 Sept 1972] 46978/72 Heading E2B [Also in Division A5] A releasable coupling for a dental handpiece comprises a coupling hook 9 resiliently mounted in a recess 7 in a connection sleeve 3 secured to the drive element 2, said coupling hook 9 engaging by means of a barb 10 an annular groove 11 in the handpiece 1 and being attached to a radially extending pressure pin 13 slidable in an aperture 14 in the sleeve 3 which pin has over it an externally grooved rotation ring 15 formed with a part cylindrical recess 18 in its inner surface for disengaging the barb 10 from the handpiece 1 on rotation A stop sleeve 21 limits the inward movement of the pressure pin 13 so that it always projects into the recess 18 in the rotation ring 15 which snap fits with the drive element 2 by means of a detent ball 22 resiliently mounted in a blind recess 24 in the drive element 2 and a detent aperture 23 being so constructed that they are only slightly relatively displaced when the handpiece 1 and the drive element 2 are uncoupled. A plurality of apertures 28 providing communication between the inner space 26 of the drive element 2 and an annular gap 27 between the drive element 2 and the rotation ring 15 to allow passage of air for cooling an electric motor within the drive element 2.
Patent GB-1214769-A (GB)
Title: Improvements relating to vehicle bodies
IPC: B60J10/80
Filed: 1969-09-24
Abstract: 1,214,769. Vehicle bodies. DAIMLERBENZ A.G. 24 Sept., 1969 [9 Oct., 1968], No. 47064/69. Heading B7B. The edge 4 of a door 1 adjacent the hinge 2 is stepped so that it lies behind the edge 5 of a wing 6 or an adjacent door.
Patent GB-1105790-A (GB)
Title: Paint roller
IPC: B05C17/02
Filed: 1966-10-20
Abstract: 1,105,790. Coating apparatus. F. DECK and N. KEIM. 20 Oct., 1966 [6 May, 1966], No. 47073/66. Heading B2L. A paint applier comprises a roller 4, a shank 1 provided with a handle 2 at one end and bent at the other end so as to lie at right angles to the axis of the handle to form a spindle for the roller 4, and a cover plate 8 carried separately from the roller and mounted in position adjacent the free end of the roller, the plane of the cover plate being at right angles to the axis of the roller and the cover plate having mounted thereon a flat brush 11, the bristles of which project beyond the edge of the cover plate 8 and across the end of the roller. The cover plate 8 may be formed of two discs 9, 10, the inner disc 10 being larger than the outer disc 9 so that it projects slightly beyond the edge thereof. Preferably the cover plate 8 is mounted at one end of a resilient strip 7 the other end of which is fixed to a grip 5 having a longitudinal square guideway, the grip being mounted on and longitudinally movable along, a portion of the shank 1 having the form of a twisted square rod, such that on longitudinal movement of the grip 5 the cover plate 8 is withdrawn from its mounted position adjacent the free end of the roller to a neutral position remote from the roller. A spring loaded ball device may be provided in the grip 5 for co-operating with groove 12 in shank 1 to lock the grip in the withdrawn position of the cover plate 8. The cover plate may be detachable and is preferably formed of a plastics material or of plastics covered metal.
Patent GB-1518718-A (GB)
Title: Rotary tube furnaces
IPC: C21B13/00
Filed: 1976-11-12
Abstract: 1518718 Rotary furnaces POLYSIUS AG 12 Nov 1976 [14 Jan 1976] 47167/76 Heading F4B Fine grained ore is reduced and subsequently pelletized in a plant comprising a suspension preheater 1, a first rotary furnace 2<SP>1</SP> and a second separately driven rotary furnace 23. Hot gases 10 from the furnace 2<SP>1</SP> flow through the preheater 1 to dry and pre-heat material 11 flowing counter current to the gases. A reducing agent (oil or powdered coal) is blown via the nozzle 15 into the gas conduit 13<SP>1</SP> and mixes with the fine grained ore so that the incoming ore is largely pre-reduced in the cyclones 3 and 4 and the vortex shaft 5 before entering the furnace 2<SP>1</SP>. Carbonization gases and coal particles entrained by hot gases in the preheater are burned with fresh air supplied at 17 and the heat utilized for preheating and drying the ore. The ore is finally reduced in the first furnace 2<SP>1</SP> and then passes to the second faster rotating furnace 23 where a binder is added. Gases and material in furnace 23 flow in the same direction and the ore is pelletised by the binder and is finally discharged at 23c. Gases from the second furnace may be led via conduit 25 to the first furnace 2<SP>1</SP>.
Patent GB-993450-A (GB)
Title: Wall plug for anchoring bolts or screws
IPC: F16B13/12
Filed: 1963-11-29
Abstract: 993,450. Wall-plugs. J. E. DWYER. Nov. 29, 1963, No. 47330/63. Addition to 980,725. Heading F2H. A wall plug, e.g. moulded in one piece of nylon, comprises two members each having a longitudinal part 16 and a divergent tail part 17, the parts 16 being joined together by an annular web 18 adjacent a head 19 and the tail parts 17 being joined by a flexible web strip 22 which splays the parts 17 further apart when a screw end is driven against the web 22, e.g. in a conical cup 25 at the web middle. The tail parts 17 are held together for insertion in a hole 11 in a wall 12. There is also an apertured web 26 at the junctions of the parts 16, 17 as in the parent Specification and the parts 16 are spread at this end by straightening of the web 26 and since the bore between these parts, defined by grooves 30, Fig. 5, may taper towards the tail parts 17. Two rows of teeth 31, Fig. 5, are formed on the parts 16 and similar teeth of decreasing height are formed on the tail parts 17 to grip the rear surface 21 of the wall 12.
Patent GB-1089915-A (GB)
Title: Novel 7-alkyl-19-nor-steroids
IPC: A61K31/568
Filed: 1964-11-20
Abstract: Novel steroids of the formula <FORM:1089915/C2/1> (wherein Y is alkyl; R1 is OH or O aryl; and R2 is H or a C1- 4 hydrocarbon radical; or R1 + R2 is keto) are prepared by reductive removal of the 3-halogen atom from the corresponding 3-halo steroids prepared as described in Specification 1,089,916.  Substituents in the 17-position may be introduced as indicated in the aforementioned Specification.  The novel 7-alkyl-19-nor-steroids, which are stated to have progestative, anabolic, androgenic, estrogenic and gonad- and ovulation-inhibiting properties, may be made up into pharmaceutical compositions for oral or parenteral administration.
Patent GB-1537266-A (GB)
Title: Carpet cutter
IPC: B26B5/00
Filed: 1975-11-18
Abstract: 1537266 Carpet cutters TOA INTERIOR CO Ltd 18 Nov 1975 [21 Nov 1974] 47385/75 Heading B4B A carpet cutter for cutting a fitted carpet comprises a handle 12 secured to a base plate 11 on which is mounted a guide 13 for engagement with a corner between the wall and floor, a blade 21 mounted on a plate 17 secured to a further plate 15 which is inclined towards the corner, an elongate plate 33 having rollers 37 at each end, for contact with the upper surface of a turned-up edge of carpet, the plate 33 being adjustably mounted on the inclined plate 15 in order to adjust the rollers to suit different thicknesses of carpet. The plate 33 is formed with a slot 44 engageable with a nut 43 in order tc effect the adjustment. A pair of blades 21 are held on the plate 17 by means of respective threaded nuts 27, the threads being left and right-handed such that, depending on the direction of travel of the cutter, the respective nut tends to be tightened by contact with the carpet. In addition to the adjustment of the rollers provided by the nut 43, the rollers may themselves be adjusted in slots 36. Spare blades 21 may be retained in a pocket 51, Fig. 4, in the handle.