baber/WOPTO huggingface dataset:
Patent GB-1167424-A (GB)
Title: Improvements in or relating to Change Speed Apparatus for Motorized Two-wheel Vehicles
IPC: F16H63/18
Filed: 1967-09-19
Abstract: 1,167,424. Change speed control. HONDA GIJUTSU KENKYUSHO K.K. 19 Sept., 1967 [22 Sept., 1966], No. 42707/67. Heading F2D. In a control for a two-wheel vehicle changespeed gear, repeated full clockwise strokes of a pedal-actuated swing arm 2 from a normal position shown causes a ratio-shift drum 1 to be rotated intermittently anticlockwise into alternate Low and High ratio drum positions, and a full anticlockwise stroke of said swing arm from said normal position causes said shift drum to be rotated clockwise, by an amount about half of that of each said anticlockwise rotation, into a Neutral drum position. The control may be arranged to prevent direct shift from High to Neutral. The swing arm 2 and a pedal arm 6 are fast on a pedal shaft 3. The swing arm 2 is pivoted to an arm 8 biased, by a spring 12, towards the shift drum. The latter carries four equispaced pins 11, and a detent plate 13 co-operating with a spring-biased roller 15. The detent plate has two pairs of alternating concaves L, T for detention of the shift drum in Low and High ratio positions respectively, two concaves N each between a concave T and a concave L for detention of the shift drum in Neutral positions, and two swells 17 for the purpose described later. As shown, the full clockwise and anticlockwise strokes of the swing arm 2, against a centring spring 4, are determined by engagement with a fixed stop 5 of swing arm abutments 18, 19. In operation, by repeated clockwise full strokes of the swing arm, the shift drum is ratcheted around anticlockwise into alternate Low and High ratio positions by engagement, with the pins 11, of a claw 9 on the arm 8, the Neutral concaves N and the swells 17 passing over. If, when the shift drum is detained by engagement of the roller 15 in a Low ratio position L, the swing arm is stroked fully anticlockwise, a claw 10 on the arm 8 engages a pin 11 and rotates the shift drum clockwise into the adjacent Neutral position in which it is held by the roller 15 on return of the swing arm to its normal position. If, however, such anticlockwise shift arm stroking is attempted when the shift drum is detained in a High ratio position, the roller 15 does not pass relatively over the adjacent swell 17 but only rides on the slope thereof so that on pedal release the shift drum is cammed back into its High ratio position. This High-to-Neutral direct shift prevention may be dispensed with by substitution of a further pair of Neutral concaves for the swells 17. In Fig. 7 (not shown), the abutments 18, 19 are equidistantly disposed in respect of the stop 5 and the claw 10 is positioned further rightwards about half the distance of its movement so as to provide a lost motion when the swing arm is moved anticlockwise.
Patent GB-915251-A (GB)
Title: Protective network for electric arc welding or electric arc melting
IPC: B23K9/10
Filed: 1960-12-13
Abstract: 915,251. Protective arrangements. WESTINGHOUSE ELECTRIC CORPORATION. Dec. 13, 1960 [Dec. 18, 1959], No. 42785/60. Class 38 (5). [Also in Group XXXV] In arc-welding or arc-melting apparatus, wherein D.C. from a polyphase rectifier is applied to work electrodes E, W (see Group XXXV), closure of a start button S.A. completes a supply from an auxiliary A.C. source AL1, AL2, to a relay 1CR (having a holding contact 1CRa) to close contacts 1CRb and lCRc to energize a relay M and complete the primary supply through Ma, Mb, Mc. An out-ofbalance protection arrangement comprises six current transformers CT1 ... CT6 cross-connected in pairs and feeding a relay 2CR. Any unbalance causes the relay to close contacts 2CRa, so energizing a relay 3CR. This closes a holding contact 3CRb and opens a contact 3CRa de-energizing the relay and thereby disconnecting the main supply.
Patent GB-962745-A (GB)
Title: Electric switch actuating mechanism
Inventor: LEWIS CYRIL FRANCIS
IPC: H01H23/16
Filed: 1961-11-30
Abstract: 962,745. Retractive switches ; tumbler switches. ERICSSON TELEPHONES Ltd. Nov. 16, 1962 [Nov. 30, 1961], No. 42811/61. Heading H2B. A pivoted lever 11, with a shaped end 13 moves a spherical ball 14, which engages a resilient member 15 and actuates a microswitch 18, Fig. 2 (not shown), or joins contacts 16, 17. The end 13 of the lever may be so shaped that it either locks in the end positions or retracts.
Patent GB-1173166-A (GB)
Title: Motor Vehicle Brake System
Inventor: WILSON BRIAN JOHN
IPC: B60T11/34
Filed: 1967-09-20
Abstract: 1,173,166. Hydraulic braking system. FORD MOTOR CO. Ltd. 20 Sept., 1967, No. 42824/67. Heading F2F. When a trailer is decoupled the braking force at a tractor's wheels for a given pedal effort is automatically reduced by an hydraulic pressure reducing valve device, a shaft 25 (Fig. 3) of which is linked by a rod to the trailer coupling unit (illustrated in Figs. 1 and 2, not shown), in order to lessen the chances of the tractor overturning when braking. The device 19 is connected by an inlet 27 to an hydraulic master cylinder and by an outlet 29 to the brakes. Angular displacement of the shaft 25 when coupling or decoupling the trailer causes an element 57, to which the shaft is linked, to slide on a surface 63 thereby shifting the fulcrum position of a link 55. Altering the fulcrum position varies the relationship between input pressure in a passage 31 and output pressure in a passage 35 as described below. A restrictor valve piston 37 is spring biased to seat on a surface 41 and thereby reduce pressure in passage 35. An extension 43 of this valve abuts a piston 45 which is normally held by a spring 47 in the position shown, at zero pedal effort. Thus valve 37 is held off its seat. When the brake pedal is depressed, hydraulic pressure in passage 35 acting through a passage 63 on the piston 45 moves the piston downwards permitting the valve 37 to seat on surface 41, and the pressure in passage 35 falls. Pressure in the passage 31 moves a piston 51 downwardly, which rocks the link 55 and forces a plunger 56 into contact with piston 45 to move it upwardly lifting valve 37 off its seat. A certain relationship is therefore established between the input pressure (pedal effort) and the output pressure (braking force) which can be varied by moving the fulcrum position. A greater braking force is thereby applied for a given pedal effort, when the trailer is coupled than when it is disconnected from the vehicle.
Patent GB-1407042-A (GB)
Title: Apparatus for visual indication of characters or the like
IPC: H01H9/16
Filed: 1972-09-04
Abstract: 1407042 Mechanical switches ROMAY AG 4 Sept 1972 [15 Sept 1971] 43186/74 Divided out of 1407041 Heading H1N [Also in Divisions G5 and H3] Numeric display apparatus include a coding switch comprising a plurality of contact springs 50a... 50e on a base member which scan a code contact strip 52 on a rotatable member 20, the strip including 4 code tracks and a null track. A figure of eight array of slots are formed in the base which are selectively opened and closed by the rotable meniber (see Division G4-G6). In another embodiment Fig. 7 (not shown) the code tracks are on a disc.
Patent GB-1353050-A (GB)
Title: Adsorption process for separating paraxylene from mixtures of c8 aromatic hydrocarbons
IPC: C07C7/12
Filed: 1971-09-17
Abstract: 1353050 Separating xylenes UNIVERSAL OIL PRODUCTS CO 17 Sept 1971 [18 Sept 1970] 43367/71 Heading C5E In a process for selectively adsorbing p-xylene from a C 8  aromatic mixture on a crystalline aluminosilicate adsorbent, the p-xylene is displaced from the adsorbent by using a desorbent containing p-diethylbenzene. The desorbent may contain other diethylbenzene isomers, paraffins, cycloparaffins and/or decalin. The process may be operated in the gaseous or, preferably, the liquid phase using zeolite X or Y containing cations selected from Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Ag, Mn, Cd, and Cu.
Patent GB-877662-A (GB)
Title: Preparation of acetaldehyde monoperacetate
IPC: B65G65/44
Filed: 1959-12-22
Abstract: Acetaldehyde monoperacetate is prepared by contacting a liquid stream comprising acetaldehyde with molecular oxygen in the presence of ozone or ultra-violet light at a temperature between -15 DEG C. and +30 DEG C. under conditions producing a Reynolds number of at least 2100, preferably above 250,000.  An organic solvent may be used.  The amount of ozone is preferably from 0.0001 to 5% by weight based on the acetaldehyde.  The process may be operated in a continuous manner.  Specification 795,927 is referred to.
Patent GB-1089408-A (GB)
Title: Apparatus for selectively charging a capacitive load
IPC: H03K17/78
Filed: 1965-10-14
Abstract: 1,089,408. Modulating light; pulse circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 14, 1965 [Feb. 24, 1965], No. 43567/65. Headings H3P and H4F A circuit for charging and discharging a capacitive load, e.g. an electro-optic crystal 8, comprises a tank capacitor 12 connected through an inductance 10 to the unearthed crystal plate 9 so as to form an oscillating circuit. Diodes D1 and D2 which block the flow of current towards the inductance but permit current to flow in the opposite direction are connected at the ends of the inductance and are by-passed by switches S1 and S2 which are closed intermittently by pulses derived from the data pulses, as shown, so as to transfer electrostatic energy from the tank capacitor to the crystal plate and then to return electrostatic energy from the crystal plate to the tank capacitor. After each return of energy to the tank capacitor i.e. after switch S2 is opened, a voltage pulse is applied to the tank capacitor through diode D4 to compensate for any losses, e.g. resistance losses, occurring during the operation of the circuit, and at the same time to ensure that the crystal is completely discharged the voltage on conductor 14, which is connected through diode D3 to the crystal plate and is normally subjected to a voltage equal to the initial voltage to which the tank capacitor is originally charged, is reduced to zero. The voltages on conductors 14 and 16 are derived from clock pulses which arc differentiated 20, delayed 22 and applied to a monostable circuit 24. In order that a half wave voltage may exist on the crystal by the discharging of the tank capacitor it is necessary that the initial voltage be greater than the half wave voltage by an amount equal to the voltage remaining on the tank capacitor after discharging. When the half wave voltage is applied across crystal 8 the plane of polarization of the plane polarized light from source 4 is changed by 90 degrees and thus the light is deflected in birefringent element 6.
Patent GB-1118612-A (GB)
Title: Spring clip and mounting bar assembly
Inventor: FELLOWS RAYMOND
IPC: F16B2/24
Filed: 1964-10-26
Abstract: 1,118,612. Clips. HALL & GOULDING Ltd. 25 Oct., 1965 [26 Oct., 1964], No. 43595/64. Heading E2B. A spring clip and mounting bar assembly comprises a clip having a pair of limbs 3, 4 joined by a yoke 5 and having a slot 8 in or near the yoke, and a bar 2 having a lateral projection 9 lying within the slot to prevent rotation of the bar relative to the clip. As shown, a tongue 7 pressed out from the limb 4 retains the bar within the clip. The bar may be provided with a second similar projection which engages a second slot in the clip. The clip and, or, the bar may be of metal or of plastics material.
Patent GB-1351532-A (GB)
Title: Prostenoic acid derivatives
Inventor: SAKAI K
IPC: C07C405/00
Filed: 1971-09-20
Abstract: 1351532 Compositions comprising prostaglandins SANKYO CO Ltd 20 Sept 1971 [19 Sept 1970 28 Sept 1970] 43807/71 Heading A5B [Also in Division C2] Pharmaceutical compositions, suitable for parenteral administration, contain novel prostaglandins of the formula: wherein A is C 1-10  alkylene, R<SP>1</SP> is C 1-10  alkyl, R<SP>2</SP> is H or C 1-5  alkyl and the cyclopentylene is a group of the formulae:  wherein R<SP>3</SP> is H or 2-tetrahydropyranyl; or alklali or alkaline earth metal salts thereof when R<SP>2</SP> is H and pharmaceutical carriers or diluents, and if desired, known prostaglandens. The compounds possess uterine and ileum contracting activities.
Patent GB-1485350-A (GB)
Title: Suspension for truck cab
IPC: B62D33/06
Filed: 1975-10-27
Abstract: 1485350 Motor vehicle cab mountings FORD MOTOR CO Ltd 27 Oct 1975 [23 Dec 1974] 44006/75 Headings B7D and B7B A tilting cab 14 is mounted on a motor vehicle frame 10 by a suspension comprising front and rear pairs of pivoted suspension arms 20, 48, an anti-roll stabilizer bar 20 interconnecting the front arms 20, front air springs 38 interposed between the frame 10 and the front arms 20, and rear air springs 65 interposed between the cab 14 and support members 54 through which the rear arms 48 are connected to the frame 10 by releasable latches 60. Hydraulic dampers 44, 68 connected in parallel with the air springs 38, 65 include internal stops which resiliently limit movement of the cab 12. The air pressure in the springs 38, 65 is controlled to maintain the cab 14 at a constant height above the frame 10 by means of a separate levelling valve associated with each front spring and single levelling valve associated with both rear springs. The front arc rear arms 20, 48 are arranged at different acute angles to the horizontal to obtain anti-squat and anti-lift effects during acceleration and braking. Hydraulic tilt cylinders connected between the cab 14 and the frame 10 and arranged parallel to the front arms 20 are operated by an hydraulic control system which simultaneously actuates the latches 60 so that the cab can tilt about the axis of the pivotal connection between the front arms and the cab.
Patent GB-1006411-A (GB)
Title: Improvements in or relating to telephone stations
Inventor: CHAPMAN RODGER
IPC: H04M1/60
Filed: 1960-12-22
Abstract: 1,006,411. Automatic volume control; telephone substations. KOLSTER-BRANDES Ltd. Dec. 15, 1961 [Dec. 22, 1960], No. 44127/60. Headings H4K and H4R. An amplifier has its amplification controlled in accordance with the level both of its input and its output signals. As shown the microphone signal passes through a fixed amplifier A 1 , a controlled amplifier A c  and a fixed output amplifier A 3 . The control potential for the amplifier A c  is derived (a) from the microphone signal amplified at A 2  and rectified and (b) from the rectified output of A 3  the direction of the control signals being such that an increase in input signal tends to increase the gain, but an increase in output signal tends to decrease the gain. It is shown that for small input signals the gain is proportional to the input signal and for large input signals the gain is independent of the gain of A 1  and A 3  (being in fact equal to the gain of A 2 ). The amplifier is useful in a loudspeaking system comprising a further amplifier for amplifying incoming signals for feeding to a loudspeaker, the latter amplifier being controlled to decrease in gain when the microphone receives a signal. Preferably the control potential for the loudspeaker amplifier is derived from the rectified output from A 2 , although the combined control signal used for amplifier A c  can be used for this purpose. The gain characteristic for small input signals enables the conditions for no retroactive howling between microphones and loudspeakers of the same or adjacent substations to be easily satisfied, and the constant gain at high levels enables the output voltage to be maintained in the face of large variations in output impedance due to a large number of subscribers being connected together in a conference call. In a modification the output of A 2  is limited, so that at high input voltages a constant output voltage for the system is achieved. All the amplifier stages may be transistorized and the variable gain of A c  achieved either by using a transistor as a gain controlled amplifier, Fig. 4 (not shown), or using the base-emitter input resistance as one element in an attenuator network, Fig. 5 (not shown).
Patent GB-948840-A (GB)
Title: Improvements in or relating to signal information storing systems
Inventor: PLETTS JOHN WILLIAM
IPC: G06F13/00
Filed: 1961-12-11
Abstract: 948,840. Staticizers. MARCONI CO. Ltd. Sept. 20, 1962 (Dec.11, 1961), No. 44219/61. Heading G4C. Data staticized in a number of bi-stable units 2RA - 3RD may be held there by the setting of control unit CB, thus disabling the resetting of the units, and further entry into them. Data is received in the form of pulses on lines A - D at times defined by pulses on lines 1 - 5 in succession, and that data occurring at pulse times 2 and 3 is normally staticized, and erased by the next pulse on line 1 before entry of the next set of data in the next sequence of pulses on 1 - 5. However, if a pulse occurs on line D at pulse time 4 CB is set to disable the resetting of 2RA - 3RD and any further entry into them. CB may be reset at any time by a pulse at R, when normal operation restarts.
Patent GB-1497760-A (GB)
Title: Lighting fixture
IPC: F21V31/00
Filed: 1975-10-28
Abstract: 1497760 Lamps A AHLSTROM OSAKEYHTIO 28 Oct 1975 [20 Dec 1974] 44371/75 Heading F4R A lighting fitting comprises a ballast casing in gaseous communication with a lamp chamber and a filter casing releasably attached to the ballast casing and forming a gas passage between the interior and the exterior of the fitting, the filter casing containing at least one filter element for retaining fine particulate material and at least one element for absorbing or adsorbing gas.
Patent GB-927480-A (GB)
Title: Variable inductor controlled servosystem
Inventor: ZDZIEBORSKI JERZY HENRY
Filed: 1961-12-20
Abstract: 927,480. Measuring displacement electrically. HAYS CORPORATION. Dec. 12, 1961, No. 44405/61. Class 40 (1). [Also in Group XXXVI] Displacement of a member is measured by causing it to unbalance the inductances of two similar coils, each connected in series with a rectifier and the two series paths connected in parallel to pass alternate half-cycles of an alternating current, whereby the magnitude and phase-sense of the unbalance between the alternate half-cycles is indicative of the magnitude and direction of the displacement. As shown (Fig. 1), displacement of an armature 40 from its neutral position with respect to coils 26, 28 unbalances the half-cycles of A.C. flowing through a series resistor 60. The P.D. across 60 is compared with that across a similar resistor 64 in a parallel circuit of equal impedance, giving a resultant P.D. when armature 40 is moved, which may be used to energize a motor 72 to drive a receiver armature 56 to a position relative to its coils 42, 44 such that the impedance to each half-cycle of A.C. is again equal. Alternatively the two half-cycles of A.C. across resistor 60 are fed via a synchronous chopper to a ratiometer. Specification 761,950 is referred to.
Patent GB-1369740-A (GB)
Title: Record changer spindle
IPC: F16B7/20
Filed: 1972-09-26
Abstract: 1369740 Record changer spindle PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 Sept 1972 [29 Sept 1971] 44409/72 Heading G5R  A record changer spindle which is secured in the hollow spindle 1 of a turntable by means of a bayonet fitting including a stud on the changer spindle which engages an L-shaped slot 2 in the hollow spindle, is locked by means of a split clamping ring 4 which engages in a groove 3 formed in the outer periphery of the hollow spindle. Ears on the ring facilitate fitting, e.g. by means of the pliers shown, and an extension 5 on one of the ears engages in the concentric leg of the L-shaped slot to retain the stud of the change spindle in that leg. The clamping ring also retains the turntable on the hollow spindle.
Patent GB-1110072-A (GB)
Title: A process for the manufacture of liquid storage vessels
IPC: B29C33/00
Filed: 1965-10-20
Abstract: A liquid storage vessel is produced by impregnating timber with a thermosetting synthetic resin material so that the resin penetrates the interstices between the timber cells and sets hard therein to form a key before or after, erecting a core structure of the storage vessel of the timber, and applying a thermosetting synthetic resin material to the core structure to form a sealant skin thereon keyed to the first applied resin.  Different degrees of impregnation may be achieved by varying the viscosity of the synthetic resin material, the type of timber and the quantity of moisture within the timber. The synthetic resin coating material may be reinforced e.g. with glass fibre or glass woven cloth.  The synthetic resin material may be a polyester or an epoxy resin and may include as a catalyst methyl ethyl ketone peroxide, and as a curing accelerator, cobalt naphthenate.  Impregnation may be effected over a period of up to twelve hours.  The timber core structure may be reinforced with steel supports.
Patent GB-1192989-A (GB)
Title: Proportional Weighing Apparatus
IPC: G01G19/22
Filed: 1967-09-29
Abstract: 1,192,989. Electric batch weighing apparatus. BADISCHE ANILIN - & SODA-FABRIK A.G. Sept.29, 1967 [Sept.30, 1966], No.44426/67. Heading G1N. In an arrangement in which one or more substances are to be added and mixed in predetermined proportions with a reference substance of unregulated weight (e.g. in lamps), a voltage equivalent to the weight of the reference substances causes a comparison circuit to set an adjustable potentiometer to a corresponding reference voltage, and the same comparison circuit is used to control the consecutive feed of the additional substances, each substance being measured by weight in accordance with a pre-set proportion of the reference voltage. As shown, the reference substance is weighed by a weighing machine G, and with switches S1, S2 in position 0, a comparison circuit V sets a variable potentiometer R driven by a motor M to a reference voltage corresponding to the output voltage of the weighing machine. Tare weight is allowed for by a variable voltage U adjusted by a motor Ml until the switches in position 0. Switch positions 2, 3, 4 are used in turn to apply the reference voltage to pre-set tappings on a potentiometer P connected across the weighing machine output, the comparison circuit being activated and causing a corresponding feed D2, D3, D4, to add a further substance until the weighing machine output becomes such that voltage balance is again obtained at the comparison circuit. Separate weighing machines are used for each substance in a modification, Fig. 2 (not shown), each machine having its own ratio potentiometer.
Patent GB-1310850-A (GB)
Title: Stop for holding a door open
IPC: E05C17/56
Filed: 1971-09-23
Abstract: 1310850 Magnetic door stops SUGATSUNE INDUSTRIAL CO Ltd 23 Sept 1971 [21 Oct 1970] 44439/71 Heading E2A A stop for holding a door open comprises a mounting leg 7 with a spherical head having a projecting magnet 8 concentric with the head, and a concave member 1 of ferro magnetic material, the magnet comprising a permanent magnet i.e. plate 18 between two iron plates 19, 19'. The mounting leg is made of synthetic resin in halves integral with hemi spherical portions which have central supporting arms 16 and 16' for the magnet which has a central aperture 17 for the arms. The concave member has a central recess with a hole for a mounting screw which passes through a hole in a mounting plate 2. In a modification the concave member comprises a magnet and has a resilient buffer interposed between the member and the mounting plate the centre of which is raised to accommodate one end of a member securing the member to the plate.