baber/WOPTO huggingface dataset:
Patent GB-917804-A (GB)
Title: Electric power supply equipment
Inventor: KELLY RICHARD
IPC: G05F1/32
Filed: 1961-07-21
Abstract: 917,804. Automatic regulation. STANDARD TELEPHONES & CABLES Ltd. July 21, 1961, No. 26590/61. Class 38 (4). The output of an electric power supply equipment is controlled by a regulating arrangement so that the output-load characteristic is a predetermined shape such as that shown in Fig. 2, where the output current is constant at C 1  in the output voltage range 0 to V 1 , drops in the range V 1  to V 2 , rises from V 2  to V 3  and drops again from V 3  to V 4 . The regulating arrangement includes a controller illustrated schematically in Fig. 3, where Zo is an impedance in series with the load, S is a source of reference potential, and N 1 , R 1  and Z 1 , N 2 , R 2  and Z 2 , N 3 , R 3  and Z 3  are three networks bridged across the terminals 8 and 9 connected to the load. Each network comprises a non-linear device, a resistor, and an impedance. In the voltage range 0 to V 1  the networks N, R, Z, are inoperative and the voltage across Zo is compared with the reference potential S; any difference results in an error signal which is fed back to a regulator (Fig. 1, not shown), which thereby adjusts the load current and maintains it constant at the desired value C 1 . When the output voltage reaches the value V 1  device N 1  becomes conductive and current flows through R 1  and Z 1  in proportion to the amount by which the voltage exceeds V 1 . The linearly varying voltage across Z 1  is applied, by means not shown, in series opposition to the reference voltage S. The resulting error signal applied to the regulator will decrease the output current with an increase in output voltage. When the output voltage reaches V 2  the device N 2  becomes conductive. The voltage across Z 2  is applied, in a seriesaiding connection, to the reference source S and the resulting error signal causes the output current to rise. Device N 3  becomes conductive when the output voltage reaches V 3 , and the voltage across Z 3  is also connected in series opposition to source S whereby the output current again falls. The output characteristic of the supply equipment is thus maintained in the desired shape. The devices N may be rectifiers or gaseous discharge devices, and Zo to Z 3  and S may be windings on a transductor. A modified circuit is described (Fig. 4, not shown) wherein Z 1 , Z 2  and Z 3  are connected in one diagonal of a bridge including resistors and Zener diodes.
Patent GB-142034-A (GB)
Title: An improved power-transmitting and steering gear for motor cars wherein all the road wheels are driving wheels
IPC: B60K17/342
Filed: 1919-10-29
Abstract: 142,034. Schneider et Cie. July 18, 1919, [Convention date]. Differential driving; transmission gear between separate axles; compulsory differential driving.- Comprises differential driving-gear for steering motor-vehicles having four non-deflectable wheels, all driven. The motor D drives the road wheels through change-speed and reversing gearing H, differential gear C, double chain wheels a<2>, b<2> and chains. The differential shafts are coupled, as described in Specification 16798/15, through gearing P, N, to an auxiliary differential gear L, the planet carrier of which is normally stationary for straight driving. When the planet carrier J is rotated, either by engine-power or by a hand-wheel T, differential motion is imparted to the chain-wheels a<2>, b<2>, and the vehicle is steered to one side or the other as long as the planet carrier J is rotated.
Patent GB-962364-A (GB)
Title: Improvements in safety razors
IPC: B26B21/18
Filed: 1962-07-11
Abstract: 962,364. Safety razors; hair trimmers. W. TRAYNER. June 18, 1963 [July 11, 1962], No. 26656/62. Heading B4B. The cover-plate 11 of a safety razor is provided with bosses 12 extending beyond one edge of the blade b so that the blade is kept at an appropriate distance from the scalp when the razor is used for hair trimming.
Patent GB-407948-A (GB)
Title: Improved methods of making plastic elastic materials
IPC: C08G61/02
Filed: 1932-09-26
Abstract: Plastic materials prepared by reacting an aromatic compound of the general formula R-C6H4-R<1> (where R and R<1> represent hydrogen or a saturated aliphatic hydrocarbon radical containing more than one carbon atom) with an ethylene dihalide in the presence of aluminium chloride and in the presence or absence of rubber may be dispersed in water in the presence of nitrobenzene, soap, casein or sodium hydroxide.ALSO:Plastic materials, which are resistant to abrasion and to the action of water, acid, alkali and many organic liquids are prepared by reacting an aromatic compound of the general formula R--C6H4--R<1> (where R and R<1> each represent hydrogen or a saturated aliphatic hydrocarbon radical containing more than one carbon atom) with an ethylene dihalide, such as the chloride or bromide, in the presence of aluminium chloride and in the presence or absence of rubber.  The reaction yields a jelly like mass which is washed with water which may contain butyl acetate, acid or alkali preferably in the presence of steam and then dried.  The products, which may be chlorinated, may be milled and mixed with fillers, pigments or fibrous materials such as carbon black, zinc oxide, whiting, clay, asbestos fibres and rubber or rubber compounds and used in the manufacture of heat-resisting covers for conveyer belts and flexible linings for tanks, barrels, ball mills and pipe lines. Suitable aromatic compounds include benzene, ethyl- and diethylbenzene, iso-propylbenzene and butyl benzene.  In examples: (1) benzene; (2) ethylbenzene; (3) benzene and crepe; (4) n-butylbenzene; (5) p-diethylbenzene and (6) sym-diphenylethane are condensed with ethylene dichloride in the presence of aluminium chloride.  The Specification as open to inspection under Sect. 91 referred to the use of other Friedel-Kraft's type catalysts and was not limited to the use of any catalyst.  This subject-matter does not appear in the Specification as accepted.ALSO:Flexible linings for ball mills are prepared from plastic materials obtained by reacting an aromatic compound of the general formula R - C6H4 - R1(where R and R1 each represent hydrogen or a saturated aliphatic hydrocarbon radical containing more than one carbon atom) with an ethylene dihalide in the presence of aluminium chloride in the presence or absence of rubber.  Pigments, fillers and fibrous materials may be added to the plastic materials.ALSO:Plastic materials prepared by reacting an aromatic compound of the general formula R-C6H4-R1 (where R and R1 represent hydrogen or a saturated aliphatic hydrocarbon radical containing more than one carbon atom) with an ethylene dihalide in the presence or absence of rubber and in the presence of aluminium chloride may be milled and mixed with pigments, fillers or fibrous materials such as carbon black, zinc oxide, whiting, clay, asbestos fibres, rubber or rubber compounds and used in the manufacture of covers for conveyer belts and linings for tanks, barrels, ball mills and pipe lines.
Patent GB-924651-A (GB)
Title: Apparatus for heating fine-grained material, particularly raw cement powder
IPC: F27B7/20
Filed: 1961-07-24
Abstract: 924,651. Preheating and charging cement raw materials. BETEILIGUNGS - UND PATENTVERWALTUNGSGESELLSCHAFT m.b.H. July 24, 1961 [July 26, 1960], No. 26738/61. Class 51 (2). In apparatus for preheating and charging cement raw materials of the type comprising serially - interconnected cyclone separators through which the material passes generally in counterflow to the hot kiln gases, the separators 1-4 are arranged in pairs in the descending limbs of a sinuous waste gas pipe 5 disposed to give axial flow therethrough and the final feed pipe 9 to the kiln 10 is arranged inside the initial length of the said pipe 5. Deposition of alkali constituents and raw powder is encouraged in the first rising length of the pipe 5 by a refractory lining 12 and coolable baffles 13.
Patent GB-225029-A (GB)
Title: New or improved means for preventing uncontrolled backward movement of automobiles and the like
IPC: B60T1/14
Filed: 1923-10-26
Abstract: 225,029. Newbould, M. Oct. 26, 1923. Brakes, arrangement and disposition of; controlling different functions by same handle or lever.-A pivoted gravity sprag is so connected to the clutch pedal that when the pedal is depressed to take out the clutch the sprag is released and its end engages the ground so preventing the car from running backwards. The sprags 14 are fixed to a rotatable shaft 9 and are normally held in an horizontal position by spring clips 15. When the clutch pedal 1 is depressed an aim 8 loose on the shaft 9 is rotated by a link 6 and acts through a lost motion connection on the shaft, thus forcing the sprags out of the clips so that they engage the ground. The release of the clutch pedal does not raise the sprags as the arm 8 then rotates loosely on the shaft. The sprags are raised by a cable 16 connected to a hand lever 18. In order to prevent disengagement of the clutch releasing the sprags when reversing the car, the lever 18 may be held in such a position in its quadrant that the sprags are held just clear of the ground. In a modification the arm 8 is fixed on the shaft 9 and each sprag is connected to the shaft through a oneway clutch.
Patent GB-892508-A (GB)
Title: Improvements in roller assemblies for the pressure treatment of materials
IPC: D21G1/00
Filed: 1958-08-21
Abstract: 892,508. Hydraulic apparatus. KUSTERS, E. Aug. 21, 1958 [July 4, 1958], No. 26851/58. Class 69 (2). [Also in Group XIII] In a roller assembly comprising an upper and a lower roller, the upper roller consists of a rigid stationary core surrounded by a rotatable hollow cylindrical casing the space between the core and the casing being divided longitudinally into two chambers, the lower of which is filled with liquid under pressure. A pump is connected to the lower chamber for maintaining the pressure therein and means including pistons operating in cylinders to which air or liquid under pressure may be admitted are provided for applying pressure to the ends of the core. In the assembly shown, the lower roller is similar to the upper, the space between each core 3, 4 and its associated casing 6, 7 being divided by plates 12 into chambers 8, 11 or 9, 10. The upper core is constrained to move vertically under the action of pneumatically  operated double-acting pistons 16, the air supply to and from the associated cylinders 15  of which is conducted through a reversing switch 25 and piping 30, 32, 28 and a differential regulator 31 intermediate the piping 30, 32. The roller " nip " chambers 8, 9 are supplied with pressurized oil through piping 18 by a pump 17 from a tank 22, any oil leaking into the chambers 10, 11 remote from the " nip " being returned to the tank by the pump. The oil pressure is regulated by a device 20 and the pressure exerted by the pistons 16 on the ends of the core 3 is regulated automatically against the oil pressure in the chambers 8 and 9 by means of the differential regulator 31 to which the oil pressure is admitted via a pipe 34. Specification 807,293 is referred to.
Patent GB-670466-A (GB)
Title: Improved means for removably connecting pannier-bags to cycles, particularly motor cycles
IPC: B62J9/00
Filed: 1949-10-20
Abstract: 670,466. Luggage attachments. PULLEY, T. L., PULLEY, L. W., PULLEY, A., and PULLEY, S. N. Oct. 11, 1950 [Oct. 20, 1949], No. 26911/49. Class 136 (i). Means for securing a pannier bag to a cycle or motor cycle comprise a frame 2 fixed to the cycle and a frame 3 supporting the pannier bag 1, the two frames being detachably connected together by a sleeve on the one frame engaged by a pin on the other frame, and also by a notched or hook part on the one frame engaged by a part of, or by a part on, the other frame. As shown in Fig. 1, the frame 3 comprises three J-shaped bars, 15, 16 and 17 connected by transverse bars 19, 20. The frame 2 is attached to the cycle frame by clips 9 (Fig. 4) connected to U-shaped bracket carrying clips 5 adjustably secured by bolts 6 bearing against the frame bars 2. A vertical sleeve 24 (Fig. 4) formed on the frame 3 engages over a pin 14 on the frame 2. A pair of laterally spaced hooks 21 on the bar 19 of the frame 3 engage the bottom bar 4 of the frame 2. Alternatively, as shown in Fig. 7, the frame 2 may have headed studs 27 on the bar 4 engaged by notches in the bar 19 of the frame 3. Specification 670,467 is referred to.
Patent GB-1013474-A (GB)
Title: Polyphase electric arc furnace regulator
IPC: H05B7/109
Filed: 1963-07-08
Abstract: 1,013,474. Automatic regulation of arc furnaces. S. A. des ATELIERS de S'ECHERON. July 8, 1963 [July 10, 1962], No. 26964/63. Heading G3R and G3X. Polyhase electric are furnace apparatus comprises devices 1, 2, 3 operative to raise or lower the furnace electrodes R, S, T respectively with respect to the hearth N of the furnace, the devices 1, 2, 3 each being fed with a current proportional to the current flowing to the electrode R, S, T and a current proportional to a voltage U 2  derived by a function generator 4, the voltage U 2  being any desired function of the polyphase supply voltage U 1  such that, for example, the arc current may be maintained constant, the power consumed by the arc maintained constant at the impedance of the arc maintained constant. The function generator 4 may comprise the elements shown in Fig. 2 as delta connected non-linear saturable reactors 6, 7, 8 and series resistors 9, 10, 11. Alternatively the reactors may be replaced by Zener diodes and in a further embodiment an autotransformer is associated with each non-linear element together with three further resistors.
Patent GB-941599-A (GB)
Title: End core for centrifugal casting machines
IPC: B22D13/10
Filed: 1962-07-13
Abstract: 941,599. Centrifugal casting-machines. COMBUSTION ENGINEERING Inc. July 13, 1962 [Dec. 1, 1961], No. 26993/62. Heading B3F. [Also in Division B5] The end core of a centrifugal casting mould has irregularities such as protrusions 62, or depressions 80 which act like a pump impeller during rotation. The mould is heated by gas burners to a temperature of 400-500‹ F. during casting.
Patent GB-1284957-A (GB)
Title: Thermally insulated pipe and method of manufacturing the same
Inventor: ANDRESEN KARL
IPC: F16L59/08
Filed: 1970-06-04
Abstract: 1284957 Insulating pipes KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 4 June 1970 [7 June 1969] 27016/70 Heading F2P A thermally insulated pipe comprises a layer of foamed synthetic resin between two coaxial tubes, one or both of which is of synthetic resin, wherein a water vapour impermeable foil is provided between the foamed resin and the or each resin tube. The foil is metal, e.g. copper or aluminium, and may be coated on one or both sides with a layer of a thermoplastics polymer, e.g. a copolymer of polyethylene with comonomers, which clings to the foil. The foil has an area of overlap in the axial direction, adhesively bonded or welded. The outer tube is formed from a pre-shaped synthetic resin material strip, the foam forming mixture being simultaneously applied to the foil inside the outer tube as the latter is formed by closing the strip.
Patent GB-684283-A (GB)
Title: Improvements in and relating to rotary compressors
IPC: F04C18/063
Filed: 1950-11-06
Abstract: 684,283. Rotary compressors. LIPKAU, M. A. Nov. 6, 1950 [Nov. 19, 1949), No. 27028/50. Class 110(ii) The compressor is of the intermittent-abutment type and is provided with two vanes 1, 2, each extending for the full length of the working chamber, between ends 6, 7 but having half-length hubs 1<SP>1</SP>, 21 running on bearings a extending inwards from the ends 6, 7. The hubs have internal teeth b, b which are alternatively engaged by a driving gear 15, secured to a shaft 10, through the action of push-rods 29<SP>1</SP>, 301 moved axially, during the rotation of the vanes, by contact with cams 28, 27. The vane-arrestor gear comprises push-rods 29, 30, also controlled by the cams 28, 27, which move axially non-rotatable gears 20, 19 to alternatively engage the teeth b, b<SP>1</SP>. The gears 20, 19 have hubs 17, 18 and at the end of each hub extends an arm 21 which bears on the end of a shock-absorber piston 25 which is backed by a spring 26. In Fig. 2, the vane 1 is being driven by the gear 15, with teeth b<SP>1</SP> in engagement while the vane 2 is stopped between inlet and outlet ports 9, 9<SP>1</SP>. Compressed air is passed out through a valve 8, and fresh air sucked in through ports 9. Immediately a vane is freed from its arrestor mechanism, it starts moving forward due to air compressed between the vanes The edges of the teeth b, b<SP>1</SP> may be inclined to facilitate disengagement. The vanes are provided with packing pieces, Figs. 6, 7 (not shown) arranged with their ends overlapping. In one form, diagonally-arranged springs cause packing pieces to be pressed apart longitudinally and laterally. Lubrication is effected by splashing, end members 3, 4 throwing up oil into cups 35, 36 to feed oil ducts 33 which are regulated by needle valves 32, 31. Cooling is secured by air or other gas being compressed; water, also, may be used. The vanes may be hollow and be made of aluminium or aluminium alloy. Shaft bearing 11, 12, shown in Fig. 1. may be omitted from small compressors.
Patent GB-1140111-A (GB)
Title: Improvements relating to overspeed brakes for rail vehicles
IPC: F21S8/10
Filed: 1966-06-17
Abstract: 1,140,111. Railway vehicle brakes. BECORIT GRUBENAUSBAU G.m.b.H. 17 June, 1966 [26 June, 1965], No. 27058/66. Headings F2E and F2F. A railway vehicle is provided with brakes 17 which are actuated by a speed-responsive device when the vehicle has reached a predetermined speed. The device is operated by a wheel which is urged against a rail as by a spring, the wheel having no significant part of the weight of the vehicle acting thereon (Figs. 1, 2, not shown). The device comprises a variable spring- loaded toggle assembly 39, 43, 44, 45, 46, 47 having a block 40 intermediate its ends. The device is mounted on a shaft 36 which is counterbalanced by a member 56. When the predetermined speed has been reached the toggle assembly passes through a dead centre position to a brake actuating position (chain dotted lines) wherein it strikes a lever 48 of a trip member to open a pressure release valve 34 and vent the brake cylinder, the brakes then being applied by a pair of spring assemblies 28 in each brake cylinder. The brakes are urged to their inoperative position, indicated by a channel 53 on a piston guide rod 26 by hydraulic fluid pressure supplied by a pump 30. The device may comprise a clutch arrangement which is operated at the predetermined speed (Fig. 1, not shown).
Patent GB-305959-A (GB)
Title: Improvements relating to apparatus for testing motor vehicles
IPC: G01L5/13
Filed: 1927-10-12
Abstract: 305,959. Werner, W. A. P., Mumford, R. B., Dugan, G. E. J.,. and Pascall, C. A. Oct. 12, 1927. Dynamometers; systems for testing motor vehicles.-Apparatus for testing motor vehicles comprises a stationary unit upon which the vehicle rests and which is equipped with a suspended rotary fluid pressure pump the suction and delivery of which are connected in a closed circuit in which is a throttling device to impose any resired resistance to the relative rotation of the stator and rotor of the pump, which resistance is balanced by an opposing force, The rear wheels of the vehicle are received upon rollers b spaced apart in frames a provided with ramps a<1>. The frames may be adjusted to the width of vehicle by means of bolts a<2> in a slotted transverse member a<3> secured on the ground to which member the vehicle may also be anchored. The rollers in each frame mav be connected by a belt or chain drive. The spindle of one roller is extended across to the other casing to receive the corresponding roller. This spindle also extends from the first casing into a box j containing the pump and indicating mechanism, and drives the rotor d<1> of the pump through gears j<1>, j2. The stator d is mounted so as to rotate but is connected by a link to the short arm of a bell-crank the long arm e of which is connected to a plunger rod working against a spring in a casing f. The stator of the pump carries cylindrical oil and air receivers d<3>, d<4>, the oil receiver being divided into two chambers by a partition provided with orifices adapted to be closed by a disc valve d<8> operated by a spindle d<9>. The air receiver is divided into two compartments by a partition d<10> and these are connected with the respective compartments of the oil receiver. 'The latter compartments are connected to the suction and delivery of the pump. A dial h serves to give an indication of both speed and load. The speed pointer i<4> is on a vertical shaft, surrounded by a sleeve carrying the load pointer. Grooved eccentric pulleys on the spindle and sleeve are respectively connected by flexible cords to the sleeve of a governor i for the speed and to the plunger rod for the load. The engine is run at, say, a speed corresponding to 25 miles per hour and the disc valve d<8> moved until the resistance reduces the speed to, say, 20 miles per hour. The load indicator will thus show the brake power of the car at 20 miles per hour.
Patent GB-723183-A (GB)
Title: Improved process and apparatus for extracting oil from oil-containing pulverulent orpulpy materials
IPC: C11B13/04
Filed: 1952-10-28
Abstract: Fats and oils are extracted from pulverulent or pulpy material, such as used bleaching earth and oil-containing meal from ground oil-seeds, by placing the material in a closed cylinder, the curved wall of which is a filter, rotating the cylinder and spraying the material with radial jets of solvent from the interior of the cylinder, and then subjecting the material to gas-blowing to <PICT:0723183/III/1> extract residual solvent, the gas preferably circulating in a closed system.  After extraction or after the gas-blowing, the material may be blown with steam.  In a suitable apparatus, a cylindrical extractor 1, having a perforated surface fitted with a filtering cloth 5, rotates within a stationary casing 2, the cylinder 1 being carried on a hollow axle 6 driven by a mechanism 9 and having the part within the cylinder perforated.  The other end of the axle communicates with a fluid supply pipe 12.  The extractor is built over a distillation chamber 13, to which the solvent extract is supplied through valved pipe 14, equipped with steam heating pipes 16, a perforated steam pipe 17, a steam jet 18, and a recovered oil outlet 19.  The solvent vapours flow through a pipe 20 to a condenser 21 built over a solvent reservoir 22 on top of the extractor casing 2.  The condensate is collected in a side trough 23, water sinking to the bottom of the reservoir under the solvent 24 for removal at 27 from a separator 25.  The top of the reservoir is connected by a pipe 28 to a container 29, which collects any solvent carried over, communicating with a gasometer by a pipe 30.  The fluid supply pipe 12 is supplied under pressure with solvent, steam or gas selected by valves 31, 32, 33 respectively.  The solvent is pumped to valve 31 from the reservoir by a pump 34 through pipe 35.  The gas is drawn by a compressor 36 to valve 33 from container 29. The cylindrical extractor 1 may be a hollow prism of polygonal cross section.  The blowing gas may be air, nitrogen or carbon dioxide. The solvent specified is benzine.