baber/WOPTO huggingface dataset:
Patent GB-698500-A (GB)
Title: Improvements relating to the manufacture of glazed tiles
IPC: B28B11/04
Filed: 1950-11-23
Abstract: A method of producing a mottled effect on the surface of a glazed tile comprises subjecting the glaze while still wet to the action of air jets.  Tiles are coated with a film of glaze in known manner and then carried horizontally on a conveyer beneath a nozzle unit 30, Fig. 3, supported by a vertical spindle 15 mounted in ball bearings 21 and 22 within an eccentric 23.  The eccentric 23 is maintained in ball bearings 25 and 26 and is rotated by an endless rope 18 around a pulley 20, by means of an electric motor.  As the pulley 20 drives the eccentric 23 a reciprocatory movement is applied to the spindle 15 and hence to the nozzle unit 30.  The spindle 15 is hollow and is connected at its upper end to an air compressor by a pipe having a flexible length 31a to allow for movement.  The underside <PICT:0698500/III/1> of the nozzle unit 30 is a plate 37 with perforations 38.  The compressed air impinges on the surface of the tiles as they pass beneath, and the even film of glaze newly deposited is thus disturbed to give thick and thin areas, producing the mottled effect when the tiles are fired.  An even coat may be applied first, followed by a mottling coat, or an even coat may be applied to a mottling coat.
Patent GB-263106-A (GB)
Title: Improvements in lubricating devices suitable for friction cone clutches
IPC: F16D13/74
Filed: 1926-11-15
Abstract: 263,106. Weimer, A. Dec. 17, 1925, [Convention date]. Centrifugal-action lubricating.-In a friction cone clutch, oil supplied from a drip-feed lubricator k, Fig. 1, through a pipe t, passes to the internal conical surface of the rim of a movable cone e, whence it is forced by centrifugal action through holes n and around the edge of the rim to the coacting conical surfaces, the inner and outer conical surfaces of the rim being inclined in opposite directions. In the form shown in Fig. 3, wherein the driving member h is driven by a chain o running in an oil bath, oil carried up by the chain reaches a conical face p in the member h forming a prolongation of the friction surface, the oil being forced between the coacting surfaces by centrifugal action. Oil may also be supplied through a pipe t.
Patent GB-1429046-A (GB)
Title: Extrusion apparatus
IPC: B29C48/06
Filed: 1973-06-15
Abstract: 1429046 Extrusion orifice adjustment BICC Ltd 17 June 1974 [15 June 1973] 28691/73 Heading B5A In a tube, or cable sheathing extrusion crosshead for rubber or plastics material, die 11, and an inner die or point 21, are each eccentrically disposed with respect to circular surfaces at which rotation may be effected to adjust the relative eccentricity of the passage 16 and the die or point, to obtain uniform wall thickness of an extruded tube, or of a sheathing applied to a cable. The relative eccentricity may be adjusted, automatically, via means monitoring the eccentricity of the extrudate. The embodiment relates to a cable sheathing head, in which the die 11 is mounted at an external circular surface within the circular bore of a housing 12, for the adjustable rotation effected by an adjusting wheel 14 acting on a ring 13 to which the die 11 is secured. The housing 12 and the die 11 are restrained against displacement in the downstream direction by a collar 15 engaging a flange of the ring 13 and screw threadedly mounted to the crosshead 1. The point 21, which may be diamond tipped, may be concentrically carried by a mandrel which is eccentric with respect to the circular surface at which rotation is effected but, as shown, is eccentrically carried by a mandrel 22 which is mounted in the circular bore of a housing member 23 for the adjustable rotation effected by an adjusting wheel 26 acting on a ring 25 to which the mandrel 22 is secured. The housing members 12, 23, and the ring 25 are restrained against displacement in the upstream direction by a collar 27 similar to the collar 15. The adjustment means of the die and mandrel may carry markings arranged to coincide at the location of maximum eccentricity. The extruded material may comprise polyvinyl chloride, or high or low density polyethylene, or polypropylene, which is extruded in the example as an insulation sheathing around a wire.
Patent GB-947133-A (GB)
Title: Improvements in or relating to fluid-control valves
IPC: F16K27/10
Filed: 1962-07-26
Abstract: 947,133. Valves. M. H. GROVE. July 26, 1962 [Aug. 16, 1961; Nov. 2, 1961], No. 28837/62. Heading F2V. A gate valve has a body formed by end plates 12, Fig. 1, connected by side plates, which may be in the form of a single U-shaped member 13. Articulated clamping means 16 are provided, embracing the body, to prevent outward deflection of the plates 12. As shown in Fig. 3, the clamping means comprise links 17, which may be welded to the member 13, on which are pivoted levers 18 having abutment pads 20 engaging the plates 12. The clamping means are provided with adjustable tie rods 19. Pipe connecting hubs 11 may also be provided carrying shoulders 31 engaged by the clamping means 16. Bracing bars 56, 57, pivoted to the hubs and to brackets secured to the body may also be provided. The hubs are connected together by plates extending from the outer surfaces which plates are interleaved and fixed by bolts. A flange 14 on the end of the plate is bolted to a bonnet plate 43 and tapered dowel pins extend between these members to transfer stresses from the flange to the plate.
Patent GB-916512-A (GB)
Title: Improvements in or relating to electrical amplifying circuits
IPC: H03F1/54
Filed: 1959-08-05
Abstract: 916,512. Electrical wiring arrangements. BECKMANN INSTRUMENTS Inc. Aug. 5, 1959 [Oct. 29, 1958], No. 28860/62. Divided out of 916,511. Drawings to Specification. Class 37. The subject-matter of the present Specification is substantially identical with that of Specification 916,511.
Patent GB-519887-A (GB)
Title: Improvements in control gear for electrically propelled vehicles
IPC: B60K1/00
Filed: 1938-10-05
Abstract: 519,887. Controllers. ENGLISH ELECTRIC CO., Ltd., and MARDIS, P. L. Oct. 5. 1938, Nos. 28894, and 34580. [Class 38 (iii)] Retarding.-The controller 3 of a trolley bus is free to rotate in unison with the depression of the driver's pedal 1 as long as the motor current is below a predetermined limit. When the current exceeds this limit, a relay 22 closes and causes a valve 18 to close thereby retarding free movement, in a fluid filled cylinder 5, of a piston 7 connected by links to the controller operating quadrant 2. Under these conditions, further depression of the pedal compresses a spring 8, and the controller follows slowly as fluid leaks past a valve 21. If the motor current exceeds a higher limit, a relay 9 also closes and causes a detent 11 to arrest positively movement of the controller 3. This higher limit can be raised in the fieldweakening position of the controller by a contact 25 thereon closing the circuit of an opposing coil 24 on the relay 9. A non- return valve 7a permits unrestrained movement towards the "off " position. In one modification, the detent 11 is replaced by another valve, so associated with the cylinder 5, that fluid flow is completely stopped when the valve is closed. In a second modification, the cylinder and piston are combined with a spring 8 to form the link between the pedal 1 and quadrant 2, and only one relay 9 is used thereby allowing free movement of the controller until it is completely arrested.
Patent GB-507395-A (GB)
Title: Improvements in and relating to cabins for aircraft
IPC: B64D13/04
Filed: 1938-10-05
Abstract: 507,395. Aircraft pressure cabins. JUNKERS FLUGZEUG-UND-MOTORENWERKE AKT.-GES. Oct. 5,1938, No. 28902. Convention date, Oct. 28, 1937. [Class 4] A cabin for a high. altitude aircraft is pro vided with a plurality of openings, 3, 4, for admission and egress which are normally closed in a pressure tight manner as by the covers 5 and 6. The openings are preferably oppositely located, for example in the floor and roof of the cabin.
Patent GB-1021081-A (GB)
Title: High-tension electric insulators
Inventor: CLARK COLIN HENRY WILLIAM
IPC: H01B17/52
Filed: 1962-07-27
Abstract: 1,021,081. Electric insulators. STEATITE & PORCELAIN PRODUCTS Ltd. July 17, 1963 [July 27, 1962], No. 28939/62. Heading H2C. A helical rib extending the length of a high tension electric insulator prevents arcing during wet weather conditions by maintaining a continuous moisture stream, and a semi-conducting material, at least part of which is accommodated in a channel throughout the length of the rib, prevents arcing as the insulator dries. As shown in Fig. 1, an insulator consists of a rod 7 of porcelain having a helical rib 8 along the top and bottom surfaces of which extend protuberances 9 and 10. A narrow band 1 of semi-conducting material preferably blue titania is formed on the top surface of the rib and a similar band 2 may be formed on the bottom surface of the rib. In the region of metal fittings 5 and 6, which are secured respectively to a pylon and a conductor, the semiconducting band widens out at 3 and 4. The insulator may have different end fittings for supporting a conductor on a post (Fig. 2, not shown). Reference has been directed by the Comptroller to Specification 845,498.
Patent GB-1198084-A (GB)
Title: Information Control System
IPC: G11C19/18
Filed: 1967-06-22
Abstract: 1,198,084. Shift registers; data processors. SHARP K.K. 22 June, 1967 [1 July, 1966; 19 Sept., 1966], No. 28956/67. Headings G4A and G4C. [Also in Division H3] In a shift register comprising a plurality of MOS type transistors, each having a gate internal capacitance for temporarily holding an electrical charge corresponding to a bit of information, the occurrence of clock pulses is controlled within limits to determined the effective shift operation performed. Each stage of a multistage shift register consisting entirely of metal oxide semi-conductor field transistors (MOSTs<SP>1</SP>) comprises (Fig. 10) two storage transistors T 1  and T 2  (using the storage capacity of their gate capacitances), two gating transistors T 3  and T 4  and two transistors T 5  and T 6  operating as load resistors. Out-of-phase switching pulses # 1  and # 2  (Fig. 6, not shown) operating alternate gates T 3 , T 4  of the register cause the contents thereof to be stepped from stage to stage. In view of the limited storage time of the transistors T 1  and T 2  the information in the register must be continuously stepped although short interruptions of one or both switching pulses (e.g. for synchronizing digits in different registers in data processors) may be allowed for in the timing of the pulses. In a modified arrangement to overcome this limitation and including a feed-back transistor T 15  (Fig. 11) in each stage controlled by a pulse # 3  (Fig. 13, not shown), the information in a register may be held stationary indefinitely by merely suppressing the pulses # 1  A further modification (Fig. 12, not shown, but operated by two-phase switching pulses and comprising nine transistors per stage) also safeguards against the tendency for the information already in a storage transistor to erase new information about to be transferred thereto. The shift registers may be constructed using integrated circuit techniques. A data processor utilizing shift registers as described comprises two shift registers X and Y (Fig. 1) storing Nx and Ny digits of n bits each and having feedback loops by way of gates G 2  and G 4  respectively. Data may also be fed to an arithmetic unit AU from where it is passed to the input of register X by way of a gate G 1 . Pulse generator PG, timing signal generator TC, synchronizing signal control SC and operation generator OG co-operate to generate switching signals # for causing the digits in the registers to right shift, left shift (N-1 right shifts) or to circulate.
Patent GB-187971-A (GB)
Title: Improvements in or relating to the receiving of wireless signals
IPC: H03H9/46
Filed: 1922-10-25
Abstract: 187,971. Nederlandsche-IndiÚ, (Assignees of Einthoven, W. F.). Oct. 29, 1921, [Convention date]. Electromagnetic current meters.-The fibre of a string galvanometer is tuned to a radio-frequency and is enclosed in a mrefied space to minimize air damping. Its damping is regulated by varying the magnetic field influencing it. In an example in which the string is tuned to a frequency of 300,000, the length of fibre is 1 mm., the diameter .001 mm., and the tension about 20 milligrams and is applied for example by a fine spring the tension of which is controlled by a micrometer screw. The poles of the magnet are provided with a central bore hermetically sealed by transparent plates or lenses through which a pencil of light may be projected to throw a magnified image of the string on a screen.
Patent GB-171094-A (GB)
Title: Improvements in or relating to the manufacture of condensation products from formaldehyde and urea, thiourea or their derivatives
IPC: C08G12/12
Filed: 1921-11-01
Abstract: Condensation products are obtained by heating urea, thiourea or their derivatives with formaldehyde or a polymer thereof in the presence of a base, such as ammonia or pyridine.  The initial condensation product first produced is a colourless liquid, soluble in water; on further heating, this is transformed into an intermediate rubber-like product, which is insoluble in water and infusible; the final product, obtained by still further heating or by combined heat and pressure, is a hard infusible transparent mass, insoluble in acids and alkalies.  The presence of free formaldehyde must be avoided during the conversion of the initial product into the intermediate and final products; that is to say, the formaldehyde should not be present in greater excess than corresponds to three molecules of formaldehyde to one molecule of urea.  Specification 151,016 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the use of hexamethylenetetramine and urea itself as condensing agents.  This subject-matter does not appear in the Specification as accepted.
Patent GB-731784-A (GB)
Title: Improvements relating to luminescent materials
IPC: H05B33/14
Filed: 1953-10-22
Abstract: 731,784. Luminescent materials. GENERAL ELECTRIC CO. Oct. 22, 1953 [Jan. 30, 1953], No. 29231/53. Class 39 (1). Electroluminescent zinc sulphide is prepared in an inert atmosphere by firing mixture of zinc sulphide, a copper compound (copper equivalent 0.05-1 per cent) and a flux from the group of alkali chlorides and bromides. In one example a solution of copper nitrate and sodium chloride is added to finely divided zinc sulphide, the copper and sodium chloride amounts being 3 per cent and 5 per cent respectively. After drying, mixing and firing at 1100‹ C. for one half hour in a nitrogen atmosphere, the mixture is cooled and washed in boiling water and in potassium cyanide solution to remove excess of the salts. Copper sulphate or copper sulphide may substitute the nitrate. Other alkali bromides or chlorides will act as fluxes and the amount is stated not to be critical, nor is the temperature of firing, given as 1000-1200 ‹ C.
Patent GB-623818-A (GB)
Title: Control of variable pitch airscrews for aircraft
IPC: B64C11/38
Filed: 1946-10-02
Abstract: 623,818. Variable-pitch propellers. MARTIN, J., and MARTIN-BAKER AIRCRAFT CO., Ltd. Oct. 2, 1946, Nos. 29353/46 and 22620/47. [Class 114] In a variable-pitch airscrew additional means for setting the blades to a feathered position comprise an auxiliary cylinder 32 located on the end flange 33 of the cylinder 13 of the main pitch changing piston 14, containing a piston 35 having a recess 36 in the head. Located in the recess 36 and secured to the flange 33 is a sealed pressure reservoir 37 containing compressed gas and having an end plate 38 provided with a diaphragm 40 and a pointed pin 41 which may be actuated to perforate the diaphragm 40 by a cam lever 48 operated by a cable 50 controlled automatically or by hand, whereon gas passes from the reservoir 37 through the diaphragm 40 and a passage 42 to the cylinder 32 to operate the piston 35 which contacts a further piston 16 which in turn contacts the piston 14 to feather the blades. The piston 16 has a hollow shaft 20 sealed at one end by a diaphragm 23 and passing over a hollow tube 22 through which liquid is supplied to either side of the piston 14. A pointed striker 43 on the piston 35 perforates the diaphragm 23 to allow liquid behind the piston 14 to pass to the top of the piston 16. In a modification the reservoir 37 is replaced by a device containing an explosive cartridge which is fired by the operating cable 50 to create the pressure necessary to operate the piston 35. A ring 45 on the piston 35 passes out of the cylinder 32 in the fully feathered position and expands to lock the blades in that position. The cable 50 is connected to a spring-pressed plunger in a cylinder held in position by a sear connected to a lever. A cam plate, adjacent the rotating hub is moved into the path of the lever which withdraws the sear whereon the spring actuates the cable 50. Specification 601,718 is referred to.
Patent GB-1195582-A (GB)
Title: Selection Circuit for Magnetic Core Memories
IPC: G11C11/06
Filed: 1967-06-27
Abstract: 1,195,582. Circuits employing bi-stable magnetic elements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 June, 1967 [30 June, 1966], No. 29526/67. Heading H3B. [Also in Division G4] In a magnetic core memory matrix a column or row of magnetic cores is selected by means of a transistor switch in the primary circuit of a transformer which supplies write or read pulses to the column, or row. In order to supply read current from current pulse source I L  to a selected matrix wire MD transistor T L  is made conductive and transistor T s  switched off. Thus transistors T<SP>1</SP> m  and transistor T n  conduct when pulses are applied to their bases whilst transistors T m  and T n <SP>1</SP> remain cut off. Read current i L  flowing through the primary of transformer TR m  and transistor T m <SP>1</SP> causes a current pulse to be induced in the secondary winding of transformer TR m  which flows through diode D, matrix wire MD, diode D L , transistor T n  and transistor T L . After transistor T L  is cut off at the end of the read cycle transistor T s  is made conductive for the write cycle. When transistors T n , and T n <SP>1</SP> are rendered conductive by current pulses applied to their bases, transistors T n ,<SP>1</SP> and T n  remaining cut off, a current write pulse i s  from a common write current source Is flows through transformer TR n  and transistor T n <SP>1</SP> inducing a write current pulse in the secondary of transformer TR n . This pulse flows through diode D s  in the reverse direction through the matrix wire MD, through transistor T n , and transistor Ts.
Patent GB-798756-A (GB)
Title: Improvements in or relating to radio frequency dielectric heating apparatus
Inventor: TIBBS CHRISTOPHER EVAN MUNDELL
IPC: H05B6/54
Filed: 1955-10-17
Abstract: 798,756. Dielectric heating. RADIO HEATERS, Ltd. Aug. 23, 1956 [Oct. 17, 1955], No. 29548/55. Class 39(3) [Also in Group XIII] Dielectric heating apparatus for drying or baking comprises an oven through which passes a steel conveyer having mounted above it a number of pairs of electrodes. In the Figure, each electrode of the single pair of electrodes 4 is given the concave arcuate form shown at its outer end so as to compensate for uneven heating normally produced by rectangular shaped electrodes. Material passes under the greatest electrode length in that zone where it would otherwise be coolest, i.e. where the electrode is fed with R.F. power, and under the minimum length of electrode where it would otherwise be hottest. The electrodes are adjustable in height above a conveyer 6 and are connected by flexible strips 8 to a generator 10. The electrodes are mounted on supports (not shown) by means of insulators 12 and are provided with holes 14 for the escape of steam during heating of the material. The shaping of the electrodes as shown may be combined with known methods of increasing uniformity of heating, e.g. bending, or tilting of the electrodes from alternate sides of the conveyer, or from different positions on successive electrodes. Sausage rusks, silica powder, cube sugar, sponge rubber and saw-dust may be dried by the apparatus.
Patent GB-772129-A (GB)
Title: Improvements in or relating to vibration dampers
IPC: F16F7/10
Filed: 1955-10-17
Abstract: 772,129. Vibration dampers. BLACKBURN & GENERAL AIRCRAFT, Ltd., KING, A., WINN, E. A., SAUNDERS, C. G., and PIPER, R. H. Oct. 17, 1955, No. 29583/55. Class 108(3). A vibration damper comprises an annulus 1 carried by two spaced resilient mounts 2, 3 on a part 6 carried by a mounting bracket 9. As shown, two annuli 1 are mounted on a single part 6. The latter is mounted in the bracket 9 by means of bushes 7, 8 of thermal insulation material. The mounts 2, 3 are of rubber and have equal stiffness in all directions. The annuli 1 may be of aluminium.
Patent GB-677409-A (GB)
Title: A hand stamp or like printing device
IPC: B41K1/12
Filed: 1950-12-04
Abstract: 677,409. Hand-stamps. NATIONAL CASH REGISTER CO. Dec. 4, 1950 [Dec. 9, 1949], No. 29612/50. Class 100 (ii). Inking-apparatus.-A hand stamp includes rotatable type-wheels each of which has a plurality of porous resilient type characters 30 around its periphery, and internal ink reservoirs formed by the side-plates 34, 35, flange 28 and hub 27 of each wheel,. the wheel being mounted in a casing having an opening through which a selected type projects, and the type being selected by means of knurled selector plates 44 on the outside of the casing. The wheels are twelve-sided having eleven characters each thereon cemented to the side-plates, the twelfth space being provided with a screw 32 by means of which the reservoir in the wheel may be filled. The side plate is transparent so that in the event of the stamp being dismantled the amount of ink in the reservoir can be ascertained. The casing comprises casing plates 20, 21, spaced apart by a band 24, and formed at their bottom with flats 22, 23, Fig. 1 (not shown). Notched wheels 39 are fixed to the side plates 34 and frictionally engage the selector plates 44 mounted on the outside of the casing plates by screws 43, washers 45 being provided to avoid binding of the selector discs or type-wheels with the casing. The notched wheels 39 co-operate with pawls mounted on the inside of the casing plates, Fig. 5 (not shown).
Patent GB-1398188-A (GB)
Title: Rotary knife
IPC: B26D1/38
Filed: 1972-06-23
Abstract: 1398188 Cutting apparatus RANK XEROX Ltd 23 June 1972 29646/72 Heading B4B A rotary cutting device comprises a part cylindrical member 16 of substantially semicircular cross-section and having a generally helically-extending cutting edge, and a stationary blade 86 for cutting engagement with the movable member on angular movement of the movable member, the stationary blade comprising a flat strip resiliently urged, e.g. by a rubber strip 88 or by springs into engagement with the movable member, and the movable member being provided at one end with a lead-in tang 83 which in the operative condition of the rotary member is always in engagement with the stationary blade. The rotary member is actuated by means of a solenoid.