baber/WOPTO huggingface dataset:
Patent GB-720994-A (GB)
Title: Improvements relating to air-resistance brakes for motor vehicles
IPC: B60T1/16
Filed: 1953-06-15
Abstract: 720,994. Air brakes for vehicles. DAIMLERBENZ AKT.-GES. June 15, 1953. [June 14, 1952], No. 16482/53. Class 103 (1). In an air resistance brake for a motor vehicle, a braking flap 4 is pivotable about a horizontal transverse axis 3 disposed about the upper boundary 1 of the vehicle body and is distinguished by lateral parts of the flap, when in the braking position, extending downwardly externally along the side wall 2 of the vehicle body to a point below the upper boundary of the body in the corresponding cross-sectional plane. When a parking action is required and the parts are in the position illustrated in Figs. 1 and 3, a pull may be exerted in the direction C on a sliding element 12. The sliding element 12 is then moved downwardly against the force of the spring 11, a shaped extension 13 is disengaged from a notch 16 and the braking flap 4 can be pivoted in the direction A, to the position shown in Fig. 2, under the influence of the spring-loaded rod 20, fitted with a rubber buffer 18, being exerted against the rear portion of the braking flap. The pivoting movement is terminated when the front portion of the braking flap 4 bears against a rubber buffer 15. The braking flap is returned to its non-braking position by exerting a pull in the direction B to engage the extension 13, of the sliding element 12, in the notch 16. Intermediate notches, e.g. 17, may be provided to retain the braking flap 4 in partial braking positions.
Patent GB-814921-A (GB)
Title: Microwave antenna system
IPC: H01Q3/00
Filed: 1957-05-24
Abstract: 814,921. Aerials. BENDIX AVIATION CORPORATION. May 24, 1957 [June 5, 1956], No. 16578/57. Class 40 (7). [Also in Group XL (b)] A directive antenna system having two alternative beam patterns comprises a main reflector 1, an auxiliary reflector 2 of spaced parallel wires in front of part of the main reflector, a co-operating primary radiator arranged substantially at the main reflector focus and energy feeding means provided with a non-mechanical changeover arrangement so that the plane of polarization of energy directed to the reflectors can be changed between two mutually perpendicular directions in one of which the auxiliary reflector is operative and in the other of which it is substantially inoperative. As described, the main reflector may, by itself, provide a pencil beam and, when modified by the auxiliary reflector, a cosecant squared fan beam. This arrangement is intended for aircraft radar providing a weather service with the pencil beam and ground mapping service with the fan beam. The whole aerial system may be mounted for rotation about a pivot 7 as shown in Fig. 1. The feed arrangement (Fig. 2) comprises a rectangular guide 22 coupled by a quarter-wave transformer 23 to a circular section waveguide 12. At the end of guide 12 a taper transition is made from air to the solid dielectric 18 of conical shaped guide 17 which leads to circularly symmetrical dielectric lens radiator 19 backed by reflector 21. The radiator 19 acts as a point source for illuminatirig the reflector and functions equally well whatever the polarization of the wave energy. The means for controlling the energy polarization comprises a ferrite rod 14 mounted centrally in the guide 12 by means of conicallyshaped washers 15 of low loss dielectric abutting against shoulders thereon. A magnetic field parallel to the axis of the guide may be created by energization of the coil 16 mounted round it. Application of this field is arranged to cause the required 90 degrees shift in the plane of polarization between one state in which auxiliary reflector 2 is inoperative and the other in which it is effective. ______
Patent GB-553695-A (GB)
Title: Improvements in controlling mechanism for adjustable chairs for dental and like purposes
IPC: A61G15/02
Filed: 1942-02-10
Abstract: 553,695. Dental &c. chairs. SMITH, R. A. (White Dental Manufacturing Co., S. S.). Feb. 10, 1942, No. 16616. Divided out of 552,540. [Class 52 (ii)] In a dental &c. chair comprising a post 101, Fig. 1, vertically adjustable by hydraulic pressure means, as described in Specification 552,540, a mercury switch 325, Fig. 2, controlling the motor of the pressure pump is actuated by a pedal 362 having means for restoring it to a neutral position. The pedal has a projecting arm with a finger 371, Fig. 6 movable against a frame stop lug 375, and a pair of loosely pivoted arms 372, 373 connected by a tension spring 376 engage one on either side of the finger 371. Another pair of spring-connected crossed members 382,383 pivoted about the same axis have ball ends 385,386 engaging a depending flap 317 of a trip lever 303, Fig. 2. The switch is actuated through a pin 389 engageable with the end of a pivoted lever 341. The trip lever has a projection 296, Fig. 1, engageable by a lug 299 on the telescopic part of the chair support at the upward limit of movement to open the motor switch. A release valve is opened through the action of the lever when the chair is to be lowered.
Patent GB-425592-A (GB)
Title: Two-anode tube and connection system for the same
IPC: H01J21/20
Filed: 1933-06-12
Abstract: 425,592. Thermionic valves. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, and KAPTEYN, P., 5, Schwalbacherstrasse, Friedenau, both in Berlin. June 12, 1933, No. 16700. Void [Abridged as open to inspection under Sect. 91 of the Acts, Dec. 18, 1933]. [Classes 39 (i) and 40 (v)] A valve for use in a receiving circuit in which the back-coupling and amplifying circuits are separated, has a cathode, two anodes and one or two grids. One anode may be a cylinder 2, Fig. 2, surrounding the grid 4 and cathode 5, and the other anode may be a rod or wire 3. Another grid may be mounted between the grid 4 and the anodes, or between the anodes. In the circuit shown in Fig. 1, the input 6, 7 is connected between the grid 4 and the cathode 5, and the back-coupling 8, 9 between the anode 2 and the cathode. A resistance 11 of 200,000 ohms shunted by a condenser 10 of large capacity is connected in the back-coupling circuit. The anode 3 is connected with the amplifying circuit, the resistance 12 being 3 megohms or more.
Patent GB-559640-A (GB)
Title: A device for filling a cavity or recess with sand or the like and particularly for filling a moulding box for a core
IPC: B22C15/24
Filed: 1942-11-25
Abstract: 559,640. Moulding-machines. HARVEY, A. G. Nov. 25, 1942, No. 16700. [Class 83 (i)] A device for filling a core or mould box or other cavity 14 with sand comprises a receptacle 1 for the sand having an open end adapted to be applied to the box 13 &c. and means for supplying compressed air at the opposite end 2 to transfer and consolidate the sand. The end 2 is closed by a loose plug 3 having its movement limited by a slot 11 and pin 10 fixed in said end, a spring closed valve 4 having a stem 7 in contact with the pin 10 being opened to admit the compressed air from a pipe 9 when the plug 3 is pressed in. The spring 6 returns the plug when released and closes the valve. The receptacle 1 is filled by pressing it into a heap of sand. The other end of the box is closed by gauze.
Patent GB-948229-A (GB)
Title: Smoking pipe
IPC: A24F5/10
Filed: 1962-05-02
Abstract: 948,229. Tobacco pipes. M. ALSAFRANA. May 2, 1962 [Sept. 27, 1961], No. 16756/62. Heading A2M. A smoking pipe comprises a bowl 10 having an irremovable closure member 2 fixed thereto and an opening in the side of the bowl which may be partially closed by a member 3 hinged to the stem 14. The closure member 3 has bevelled edges and may be spring-biased into its closed position.
Patent GB-462742-A (GB)
Title: Building material, mainly for road building and isolation purposes
IPC: C08K3/08
Filed: 1935-06-11
Abstract: A bituminous material use in surfacing roads or filling joints therein comprises additional substances, such as metal or wood, in powder or other form.  The metal may be in the form of powder, chips, shavings, hooks, spirals, wires, rods or built-up structures of net or other form, and the wood may be in the form p  of chips, sawdust or shavings.  The additional substance may also comprise glass pieces.  The additional substance may be combined with the bituminous material before application of the material to the road, and in this case, the material may be moulded and laid in the form of blocks.  A suitable composition for road surfacing comprises 10 per cent of bitumen, 20 per cent of iron particles, rods or shavings, 70 per cent of filling material (stone powder and sand), and 20 per cent of broken stone.  For filling joints, the material may comprise 30 per cent of bitumen, 20 per cent of iron or wood shavings and 50 per cent of stone powder.
Patent GB-827097-A (GB)
Title: Improvements in electrical instrument and the like transformers
Inventor: WELLINGS JOHN GALE
IPC: H01F38/36
Filed: 1957-05-28
Abstract: 827,097. Transformers. BRITISH THOMSON-HOUSTON CO. Ltd. April 16, 1958 [May 38, 1957], No. 16912/57. Class 38 (2). In a combined current and voltage transformer assembly a current transformer is disposed in a metal casing 1 held at the potential of the primary winding 2 and a bushing 6 on the casing houses a voltage transformer which has a primary winding 10, a secondary winding 9, and a linear magnetic core 8, the leads for the secondary winding 3 of the current transformers passing through or along the core. Terminals 4, 5 and 12 are provided, the terminal 4 being a common terminal at low or earth potential. The casing is oil-filled.
Patent GB-807350-A (GB)
Title: Improvements in or relating to electrically heated mattresses and the like
IPC: H05B3/34
Filed: 1956-05-31
Abstract: 807,350. Moulding rubber foam mattresses &c. BRAKE, L. H. May 31,1956 [June 1, 1955], No. 16917/56. Class 87(2). [Also in Group XI]  A mattress, pad, pillow or cushion of foamed resilient material such as foamed rubber latex, foamed or aerated synthetic resin is moulded in one piece around an electric heating resistance wire, the ends of which extend out of the mattress. The resistance is a metal ribbon or a single strand or multi-strand spiralled or zig-zag wire 2 and is supported under slight tension above the floor of a mould box by pins 6 projecting from the floor or lid of the mould box. The pins 6 may be waisted and rounded from their waists to their projecting ends and may be carried on a removable plate 7 forming a false bottom to the mould box 3 or may be mounted on truncated pods 5 mounted on the lid of the box so as to leave corresponding indentations on the underside of the mattress on removal of the pods and pins. The wires may be enamelled or have a covering of asbestos or polyvinyl chloride and are arranged as a zig-zag, or several straight runs of wire may be connected in parallel by transverse connecting wires at their ends.
Patent GB-804079-A (GB)
Title: Production of hydrocarbon polymers
IPC: C08F6/02
Filed: 1956-06-01
Abstract: In a process for the production of a hydrocarbon polymer by polymerizing the hydrocarbon in the presence of a catalyst prepared by the interaction of (a) an organic aluminium compound having the general formula R2AlX in which R is an alkyl, cycloalkyl or aryl group and X is a hydrogen or halogen atom or an alkyl, cycloalkyl or aryl group with (b) a chloride, bromide or iodide of titanium or zirconium the catalyst is destroyed upon completion of the polymerization by heating the reaction mixture to above 90 DEG  C. with an excess of an alcohol over that required to react with the catalyst.  Specified polymers are those of ethylene, propylene isobutylene, butadiene, isoprene, styrene and vinyl toluene and their copolymers.  Specified alcohols are methyl, ethyl, propyl, n-butyl, iso-butyl, t-butyl, butyl, hexyl, heptyl, n-octyl, iso-octyl, 2-ethylhexyl and benzyl alcohols, ethylene, triethylene and propylene glycols and methyl phenol carbinol.
Patent GB-384919-A (GB)
Title: A new or improved educational toy
IPC: A63F9/06
Filed: 1932-06-15
Abstract: 384,919. Stencils and stencilling- apparatus. GRAY, A. J., 18, Woodland Road, Northfield, Birmingham. June 15, 1932, No. 16977. Drawings to Specification. [Class 100 (ii).] An educational toy for the production of coloured pictures comprises a number of stencils each for use with a different primary colour, the openings in two or more of the stencils overlapping when superimposed whereby the picture is produced in part in combinations of the primary colours employed. The stencils are placed in succession on the sheet to be printed, correct register being provided by means of pegs on a sheet-supporting baseboard and apertures in the sheet and in each stencil.
Patent GB-1216405-A (GB)
Title: Improvements in or relating to periodically swept aerial systems
IPC: H01Q3/40
Filed: 1968-04-09
Abstract: 1,216,405. Aerials. CSF-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 9 April, 1968 [12 April, 1967], No. 17015/68. Heading H4A. In a periodically swept aerial arrangement with an aerial system comprising a plurality of aerials fed through quantized phase shifters, means are provided for operating the phase shifters so as to reduce beaming errors due to quantization, only one phase shifter being operated at a time. As described, an aerial system comprises n aerial A 1 , A 2 , . . . A n , Fig. 2, which are arranged on a circle around a communication satellite. The satellite is rotating and the beam from the aerial system must be counter-rotated so that it remains pointing towards the centre of the earth. The aerials are connected to the n output terminals of a Butler matrix B, whose n input terminals are respectively connected through n quantized variable phase-shifters Ph 1 , Ph 2  . . . Ph n , to the n output terminals of a power divider D. A control unit 5 develops control signals for the n phase shifters and logic means are provided for preventing simultaneous variation of phase shifts. A position sensor 6 on the satellite gives an output which is representative of the angle 0 0  between the required direction of the beam from the aerial and a reference direction, and said output is applied to a device 7 which gives a modified output corresponding to an angle #, the purpose being to compensate for the quantization of the variable phase shifts available in the aerial feed means. It is stated that the relationship between # and # 0  is: # 0 =#+K sin n # (where K is a constant). The device 8 may comprise a memory in which is registered a number of values of # corresponding to values of # 0 , and an arithmetical interpolation computer. From the # signal a phase computer 3 provides n outputs, corresponding to the n place shifters, and these are quantized in a test circuit 8, and are fed as n inputs to the control unit 5. The test circuit 8 provides for each output signal from the phase computer 3 an output signal to a multiple level comparator 81, Fig. 7, where it is compared with values of the odd multiples of the half-quantization step. If an output signal is equal to one of those values, it is passed through a normally open gate 821 to a curve computer 84, which supplies the control device 5. If the output signal from the phase computer 3 is not equal to one of the aforesaid values, the comparator 81 gives an output which closes the gate 821 and opens a gate 822, so that the signal is passed to two gates 831, 832 which operate in opposition and are controlled by a comparator 810. The said comparator compares a noise signal from a generator 9 with a threshold voltage V 0 , and if it gives an output the gate 832 is opened and the gate 831 is closed, and vice versa. The signal from the phase computer 3 is thus passed either to a curve computer 841 (lower values) or to a curve computer 842 (higher values), which supplies the control device 5. Only one of the devices 84, 841, 842 is in operation at a time.
Patent GB-165107-A (GB)
Title: Improvements in or relating to wedge-belt pulleys
IPC: F16H55/38
Filed: 1921-06-21
Abstract: 165,107. Kegresse, A. June 22, 1920, [Convention date]. Pulleys for wedge-shaped belts are in two parts 1, 1', Fig. 2, turning on axles inclined to one another and adapted to be adjusted towards and from one another by means of cam or wedge projections 30, Fig. 5, and, in addition, semispherical thrust members, or a nut adjustment, or bcth. In the arrangement shown the parts 1, 1<1> turn freely on trunnions 20, 21 on a fixed bracket, the axes of the trunnions intersecting at a point 22. The parts 1, 1<1> are connected by a spindle 26 passing through the trunnions. The part 1<1> is backed by a hemisphere 31 struck from the point 22 as centre and kept thrust towards the pulley by pairs of cam or wedge projections 30. The co-acting cam projections are upon a sleeve 29 slidingly connected at 28 to the spindle 26 and adjusted by a nut 27.
Patent GB-678502-A (GB)
Title: Improvements in temperature change responsive means for controlling electric circuits
IPC: G05B11/01
Filed: 1947-06-27
Abstract: 678,502. Sparking preventing in switches. SPEED DEVELOPMENT CO., Ltd., and RUFFLE, W. H. Sept. 26, 1947. [June 27, 1947] No. 17088/47. Class 38 (v). [Also in Groups XXXV and XXXVIII] In a temperature control or warning system a train relay is operated by a millivoltmetertype switch from a thermocouple; in series with the main relay coil and switch are the contacts of a continuously vibrating relay. The effect of the latter is to reduce the number of occasions on which the circuit to the main relay is made by the millivoltmeter-type switch, the contacts of which are conserved. As shown, the thermocouple 16 deflects the movable arm d between the contacts a, c of the meter-type switch 1. With the arm d at a, the relay coil 3 is energized, the contacts 5, 5a and 4, 4a are closed and a holding circuit for relay 2 is completed through 4, 4a which relieves the contacts a, b of the relay current. Upon the arm d reaching contact c, with a change in temperature, the relay coil 17 is energized, contacts 23, 23a close to relieve b, c of the relay currents and contacts 9, 9a open to de-energize coil 3, thereby opening 5, 5a, de-energizing 17 and disconnecting the controlling device H from the D.C. supply. The make and break contacts 32, 32a of the vibrating relay 7<SP>1</SP> are in series with switch 1 and will on occasions close after the millivoltmeter switch contacts so as to reduce the number of times on which the relay circuit 2 is made by the contacts a, b. In a further embodiment, not shown, an A.C., supply is employed.
Patent GB-833794-A (GB)
Title: Rope assemblies
Inventor: HORSFALL JAMES MICHAEL COLDWEL
IPC: D07B1/22
Filed: 1957-05-30
Abstract: 833,794. Endless conveyers. LATCH & BATCHELOR Ltd. Feb. 18, 1958 [May 30, 1957], No. 17153/57. Class 78 (1). [Also in Group XXV] Transversely-extending corrugated metal straps b are bent around the outermost ropes of a flat rope assembly, each corrugation of each strap accommodating part of one rope a and the corrugations of adjacent straps b being oppositely directed. Steel ropes may be used. Each strap b, which may be indented at b<SP>1</SP> or have its end edges inclined or curved to engage between the helically coiled strands of the outer ropes, may have a fibre-glass &c. tape covering bonded to the ropes by a resinous material : or rubber, plastic, &c. may be moulded around the straps.
Patent GB-637526-A (GB)
Title: Machines for grinding and polishing non-spherical and conical surfaces
IPC: B24B21/00
Filed: 1947-06-30
Abstract: 637,526. Grinding and polishing. CLAVE, S., and CLAVE, M. June 30, 1947, No. 17160. Convention date, Oct. 13, 1942. [Class 60] Relates to a machine for grinding and polishing cylindrical, toric, &c. surfaces and comprising a tool having a backing die 22  which has an active surface of cylindrical shape and a cross-section such that the outer contour of a constantly-taut abrasive band 9 associated therewith forms the contour desired on the workpiece 1, said band being relatively displaced with respect to the die while remaining applied thereon by guide means 23. According to the invention the machine further comprises a work-support 1<SP>1</SP> on a bracket A verticallyadjustable on the frame B, a slide-block 36 movable on the frame between positions in which the band 9 engages the workpiece and is clear thereof, and means for reciprocating the band longitudinally and laterally. The slideblock 36 is moved by a handle 37 and carries an electric motor 28 which reciprocates a slide 32 carrying the band 9 and which also oscillates drums 24 carrying the band 9, the oscillations being controlled by stops on the drums. The workpiece 1 is carried on a spindle 2 which is adjusted vertically by a rack 8 and handle 7 and is either rotated by a motor 3 or locked by a pin 11. In a modification, Fig. 3, the workpiece 1 is rotated about a horizontal axis by a motor 17 or, alternatively, may be oscillated about that axis. The rollers 23 are adjustable vertically by screws 30 but, in the case of workpieces with concave faces, the rollers are omitted. French Specification 835,191 is referred to.
Patent GB-1073611-A (GB)
Title: Improvements in hydraulic steering mechanism
Inventor: ADAMS FREDERICK JOHN
IPC: B62D5/24
Filed: 1965-04-23
Abstract: 1,073,611. Power-assisted steering mechanism. HYDROSTEER Ltd. April 1, 1966 [April 23, 1965], No. 17217/65. Heading B7H. In an hydraulically-assisted steering mechanism comprising a worm 2 which is attached to a steering shaft 1 actuated by a steering wheel and is engaged by an output member connected to a steering linkage, a double-acting servo-piston 5 engages the output member, a steering box 3 encloses the worm, output member and servopiston, a control valve 8 is interposed between a source of hydraulic pressure and the servopiston 5, and a bearing 12 for the shaft 1 is supported on a pivoted lever 14 permitting slight movement of the bearing under the reaction between the worm and output member, such movement operating the control valve 8 through the pivoted lever 14. The lever 14 moves about a pivot 13 as shown to permit axial displacement of the shaft 1, or in Fig. 4 (not shown), the lever moves about an axis parallel with the shaft 1 to permit radial displacement of the shaft. The valve 8 is connected to the lever 14 by a link 15 and communicates with opposite faces of the piston 5 through passages 9, 10, 11 within the housing 3 or through flexible pipes. The output member consists of a peg secured to an arm on a rocker shaft 7B so as to project through apertures in the piston 5 and a surrounding cylinder for engagement with the' worm 2. Both the piston 5 and the cylinder are rotatable in the housing 3 to accommodate movement of the peg around the rocker shaft axis.
Patent GB-806618-A (GB)
Title: Improvements relating to the de-scaling of heated ingots and the like
Inventor: BROOKS CYRIL
IPC: B23K7/06
Filed: 1956-06-04
Abstract: 806,618. Removing surface metal by blowpipes. WELLMAN SMITH OWEN ENGINEERING CORPORATION Ltd. June 4, 1957 [June 4, 1956], No. 17238/56. Class 83 (4). Heated ingots or the like 23 are de-scaled within a chamber 13 having flame cutting nozzles 12 which direct the flames on to all exposed surfaces of the ingot. The chamber 13 is removably enclosed within an outer casing 10 having an internal lagging 14 through which the nozzles 12 are removably inserted. The ingot is initially mounted on a table 22 which is raised by a pneumatic or hydraulic motor 25 to insert the ingot into the chamber and then press a flange 27 against a shoulder 28 to seal the chamber. Supply of fuel to the nozzles is increased automatically when the ingot enters the chamber by closing a limit switch 29 controlling a solenoid-operated valve 33 which determines the fuel supply. Ingots may be de-scaled after removal from their soaking pits or after re-heating for subsequent forging or rolling.