baber/WOPTO huggingface dataset:
Patent GB-615071-A (GB)
Title: Improvements connected with electrically operated rolling mill systems or equipment
IPC: B21B37/54
Filed: 1946-08-22
Abstract: 615,071. Control of several D.C. motors. WHEELER, H. D. and MOSSAY, P. A. H. Aug. 22, 1946, No. 25117. [Class 38 (iii)] In a strip rolling mill of the type wherein strip material is unwound from a coiler, passed through a main mill, and wound on to another coiler, an electric motor 1 driving the main mill is fed from a Ward-Leonard generator 3, and each coiler motor, 10 or 11, is adapted to be supplied from an individual constant-current generator, 12 or 13, which is connected in parallel with the generator 3, each coiler motor having differential field windings, 32, 34, and 33, 35, the resultant excitation of which is such that the coiler motor backelectromotive force, with changing motor speed, is maintained substantially equal to the voltage of the generator 3 so that the coiler motor torque is so varied with the diameter of the coiled strip that the strip-tension is kept substantially constant. The field windings 32 and 33 are energized from a constant source, the windings 34 and 35 being connected between the generator 3 and the respective constant-current generators which are each provided with auxiliary field windings, 22 or 23, connected across the armature of a servo-motor 7, the voltage output of which is substantially proportional to its speed, the said servo-motor operating a field regulator for the generator 3. The effect of the field windings 22 and 23 is to alter temporarily the pre-set value of current delivered by the generators 12 and 13 so that the coiler motor torque is substantially proportionated to the rate of change of main mill motor speed, so overcoming inertia effects. The generators 12 and 13 may be provided with shunt field windings 14, 15, which may be cut out for inching. The generator 3 may have a shunt field winding 41 which is controlled by a switch to provide a " suicide " connection for braking. The generator 3 is mechanically coupled to a motor 4 which may also drive the generators 12 and 13. The set may be regeneratively braked, a centrifugal brake preventing overspeeding in the event of supply failure.
Patent GB-759167-A (GB)
Title: New or improved heating apparatus primarily intended for heating food for animals
Inventor: BOX WILLIAM EDWARD
IPC: A23N17/00
Filed: 1953-09-11
Abstract: 759,167. Boiling-pans. BLENDING MACHINE CO., Ltd. Oct. 4, 1954 [Sept. 11, 1953], No. 25138/53. Class 64(1). A boiler for heating pig swill or other food, or for boiling water, comprises a cabinet having a fireplace 12 in its lower part and a food or liquid container 16 which has a curved bottom above the fireplace and is tiltably mounted with its mouth projecting forwardly through an opening in the front of the cabinet. The container 16 is so pivoted about trunnions 161 and the curved surface is so shaped that the container, both when empty and when full, is slightly out of balance to an extent which is not increased when the container is filled or is tilted when filled. A stop 20 limits the upward movement of the front of the container. The container is closed at the top and tapers forwardly to a flanged front opening having a cover 166 held in place by U-shaped brackets 18. The top brackets are attached to the door, and those at the sides and bottom to the flange around the opening. Tubular operating handles 192 pivoting about rods 191 are provided. Handles 169 are also provided at the back of the container, for lifting it out when the back panel of the cabinet is removed. Strips of asbestos close the gaps between the container and the edges of the front opening in the cabinet.
Patent GB-939897-A (GB)
Title: Remotely controlled dust sampler
IPC: G01N1/22
Filed: 1962-07-02
Abstract: 939,897. Turbidometers. UNITED STATES ATOMIC ENERGY COMMISSION. July 2, 1962 [July 14, 1961], No. 25253/62. Class 97 (3). [Also in Group XXVI In a dust sampler wherein, during a test, suction is applied from source 7b through line 7a to cause gas to flow through a filter unit 10 wherein the dust is deposited, a cover 15 is provided which has a rubber diaphragm 15a connected by post 23 to a lever 19 pivoted at 20 to the top of cover 15, so that on applying the suction to start a test, diaphragm 15a moves inwardly to the dash-dot line position, lever 19 pivots about pin 20 and a hooked end portion 18 is released from a notch 12 on the body 8. A spring-pressed plunger 13 thereupon forces the cover 15 away from body 8 and it pivots downwardly under gravity about its hinge 11. Body 8 and retaining ring 9 may be removed from base member 4 to allow removal of the filter unit 10.
Patent GB-1043538-A (GB)
Title: Drive mechanism
IPC: G03B19/18
Filed: 1963-06-26
Abstract: 1,043,538. Reversing gearings. EASTMAN KODAK CO. June 26, 1963 [June 29, 1962], No. 25332/63. Heading F2D. [Also in Division G21 A reversible drive mechanism for cine apparatus comprises a drive member 18 rotating counterclockwise on shaft 16 of electric motor 12, and a driven member 30 rotatable on stud shaft 28 and movable on pivoted arm 24 from one position where belt 38 gives counterclockwise rotation to a second position where direct frictional contact with drive member 18 gives clockwise rotation. Member 18 comprises friction roller 20 and coaxial pulley-wheel 22, each respectively aligned with friction roller 32 and pulley 34 on the member 30 which also has an output pulley 36 connected by belt 78 to power output pulley 74 on a shaft which is coaxial with but separate from shaft 26 on which arm 24 pivots. Control member 44 is also pivoted on shaft 26 and has a down-turned portion 52 with a lug 58 which contacts legs 64, 66 of spring 60, also mounted on shaft 26. Spring-loaded detent 50 retains pivoting member 44 in any of positions 56a, 56b, 56c corresponding to REVERSE, STILL, or FORWARD drive, arm 24 being resiliently urged to said positions through the engagement of spring legs 64, 66 with stops 70, 72 on arm 24. In the still position belt 38 is slack, while rollers 20, 32 are not in contact so that member 30 is not driven.
Patent GB-1433932-A (GB)
Title: Method of lining a pipe structure and pulling head therefor
IPC: B29C63/34
Filed: 1973-05-29
Abstract: 1433932 Relining pipes E I DU PONT DE NEMOURS & CO 29 May 1973 [6 June 1972] 25387/73 Headings F2P and F2N A head for drawing a polymeric lining tube through a pipe (e.g. sewer main) to be lined comprises a polymeric tubular body 11 having an array of flexible fingers 12 at one end (the leading end in use), a support ring 15 and an endless cable 14 threaded through holes 16 in the fingers 12 and the ring 15. In use, the lining tube is attached (e.g. welded) to the trailing end of the device, a main draw cable (not shown] is attached to loops 21 of cable 14 and the fingers 12 are urged inwardly to form a frustoconical array (limited by ring 15) when the main draw cable tensions cable 14. Both the body 11 and the lining tube may be of polyethylene.
Patent GB-474103-A (GB)
Title: Sheet metal pulley
IPC: F16H55/44
Filed: 1936-09-18
Abstract: 474,103. Pulleys. ALLIS-CHALMERS MANUFACTURING CO. Sept. 18, 1936, No. 25418. Convention date, Nov. 2, 1935. [Class 80 (i)] Pressed-steel plates having de. flected rims are arranged face-to. face and back-to-back and welded together at their contacting portions to constitute a grooved sheave body structure independent of, and readily detachable from, a support hub. In the form shown in Fig. 1, the dished plates 5 are welded together at their edges and have internal tongues 7 which slide into keyways in an interchangeable hub 2. The inner edges of the plates 5 are spaced by rings 9, 34 held in position by bending the lugs 7. To enable a shorter hub to be used, end discs 31 with re-entrant portions 32 are provided. The body is clamped against a flange 35 on the hub 2 by a screwed ring 37. In the form shown in Fig. 3, the plates 14 are spot-welded at their contacting portions to form a box structure. The spacer rings 19 are secured to each other and to the plates 14 by rivets 21. The rings are secured to the hub by a key 23, which is held in the hub by a pin 25 when the hub is in store. The end ring 19 has a threaded lug 28 to receive a screw 27 passing through the hub flange 26. Specifications 372,849 and 391,281 are referred to.
Patent GB-631734-A (GB)
Title: Improvements in and relating to radio receivers
IPC: H03G3/16
Filed: 1946-08-26
Abstract: 631,734. Radio receiving apparatus. FELGATE RADIO, Ltd., and HANLET, J. M. N. Aug. 26, 1946, No. 25441. [Class 40 (v)] In a radio receiver the volume is varied by insertion of an electrically-conducting member into a magnetic path which comprises the coupling in a high-frequency transformer. The detector in a superheterodyne receiver is connected to the tuned secondary L2, C2 of an I.F. transformer in which the primary and secondary coils L1, 2 are directly coupled by mutual inductance. In addition a link circuit comprising coils L3, 4 is arranged to provide an equal and opposite coupling, fortuitous capacitive coupling being balanced out by means of a condenser C3. The volume is varied by introducing between the coils L1, 3 a movable vane 16 of conductive material, mounted on a rotatable shaft 28. The A.V.C. rectifier is connected to the primary of the transformer so as to be unaffected by the volume control. In order that control may be obtained when using a gramophone pick-up, the frequencychanger and I.F. amplifier are back-coupled by means of a cathode resistance in common, and the pick-up is connected to the oscillator grid of the frequency changer so as to modulate the oscillations thus produced.
Patent GB-949939-A (GB)
Title: Preparations of silicone water repellents for masonry materials
IPC: C04B24/42
Filed: 1960-07-21
Abstract: The aqueous reaction products of monoalkylchlorosilanes with aqueous dispersions of Ca(OH)2 (see Division C3), are used for rendering masonry materials water-repellent. Materials specified are articles or building structures made from concrete, brick, cinder block, stucco and water-mixed cement coatings.  The reaction product can be used in an amount as low as 0.1% by weight of the masonry material to be impregnated.  In Examples (i) an aqueous reaction product of Ca(OH)2 and CH3SiCl3 was added to a lime paint composed of slaked lime and ferric oxide; (ii) the reaction product of (i) was added to a mixture of plaster and water and the resulting mix was poured out and allowed to dry as a slab; (iii) the aqueous reaction product of Ca(OH)2 with a mixture of CH3SiCl3 and CH3SiH.Cl2 was added to a lim mortar; (iv) the aqueous reaction product of Ca(OH)2 and CH3SiHCl2 was added to plaster; and (5) the reaction product of (i) was added to a mix of cement, sand and water.ALSO:A silicone water repellent for masonry materials is made by reacting one or more monoalkylchlorosilanes with an excess (i.e. more than 1.5 mols per mol of silane) of calcium hydroxide dispersed in water.  Silanes specified are RSiCl3 and RHSiCl2, in which R can be methyl, ethyl, propyl, butyl or octadecyl.  In a typical example (1) an aqueous slurry was stirred with CH3SiCl3 and heated to yield, after filtration of removal of CaCl2 by washing, a paste-like reaction product containing 38% water.
Patent GB-186611-A (GB)
Title: Electrical temperature measuring arrangements for cooling plants
IPC: G01K7/20
Filed: 1922-09-21
Abstract: 186,611. Kastner, P. Sept. 28, 1921, [Convention date]. Indicating simultaneously temperatures in various parts of compression refrigerating plant. -An electric arrangement for measuring temperatures in refrigerating plants comprises two visual indicators connected through switches to thermal elements such as resistances arranged at various parts of the plant, so that the temperature at one element can be compared with that at anv of the other elements. Thermal elements may 'be arranged to indicate the temperature of the ammonia or other cooling medium of a refrigerating plant between the condenser and the brine cooler before and after the regulating valve and between the brine cooler and the compressor, the temperature of the brine before and after passing through the cooler, and the temperature of the cooling water before and after passing through the condenser. Ratio-coil ohmmeters with adjacent pointers and scales are connected respectively to terminals a, b, Fig. 1, and thermal elements 1, 6, 7 are connected to switches s<1>, s<2> arranged to connect the upper ohmmeter to the element 7 and the lower ohmmeter to the element 1 or the element 6, the 'battery L being connected in circuit in all cases. Other switches s<3>, s<4>, s<5>', s<6> are arranged to connect the ohmmeters similarly to other thermal elements. Each switch may comprise a handoperated pivoted lever s, Fig. 4, carrying two insulated rollers m<1> held in normal position by springs n, each roller co-operating with the springs n and with three pairs of contact springs e to close three circuits.
Patent GB-1154028-A (GB)
Title: Web Coating Apparatus
Inventor: MORIARTY JEROME JOSEPH
IPC: D06B1/14
Filed: 1966-06-09
Abstract: 1,154,028. Web coating apparatus. EASTMAN KODAK CO. 9 June, 1966 [11 June, 1965], No. 25667/66. Heading D1L. Web coating apparatus in which a bead is formed between a liquid lift roller and the web, comprises means within the bead for stabilizing the bead. In a preferred embodiment, the stabilizing means comprises a taut wire or rod, 24. The lift roller 14 is partially immersed in a trough 12 of liquid 13 and is rotated in a direction opposite to the direction of travel of the web. The web 10 is guided round support roller 11 in spaced relation with the lift roller 14, the distance between the two rollers being variable. The stabilizing rod or wire 24 is preferably situated adjacent the exit of the web from the coating zone.
Patent GB-1214957-A (GB)
Title: A method of preparing active mother cultures of micro-organisms
IPC: C12N1/02
Filed: 1969-05-20
Abstract: 1,214,957. Hydrocarbon foams of yeast &c. CESKOSLOVENSKA AKADEMIE VED. May 20, 1969 [May 31, 1968], No.25688/69. Heading C6F. A method of preparing an active mother culture of a micro-organism e.g. of Candida lipolytica, comprises growing the micro-organism in a nutrient medium including hydrocarbon to form fermentation material composed of nutrient medium and microbial cells, and adding to the fermentation material a hydrocarbon as a foaming agent to produce as active mother culture a foam containing the microbial cells. Specified foaming agents are mixed C 14 -C 17  n-alkanes and a gas oil distilling at 294-360‹C. The mixture of fermentation material and added foaming agent (amounting to 5-20% by volume, based on the total volume of liquid) is agitated for a period ranging altogether from 15 to 120 minutes after which the foam, now containing most of the microorganism is separated from residual fermentation material and stored. According to the examples, the foam culture exhibits less tendency to autolyse in storage than a fermentation paste of 24À3% dry solids content and a much reduced lag phase when inoculated into a test fermentation medium.
Patent GB-303197-A (GB)
Title: Improvements in or relating to carpenters' saw-guides and the like
IPC: B23D51/02
Filed: 1927-09-29
Abstract: 303,197. Torrens, J. A. Sept. 29, 1927. Saw guides. - A hand-saw is guided between an L-shaped member 14 and a carrier 9 on which it is adjustable. The carrier is fixed to a support 7 by a screw 12 and can be adjusted thereon to an extent determined by stops 3 on a bar 2 which can be turned up vertically if desired. The bar and stops may be omitted, when the position of the carrier on the support is gauged by a scale and pointer.
Patent GB-787902-A (GB)
Title: Method and means of magnetic recording
Inventor: SCHUETZ ALFRED
IPC: G11B5/55
Filed: 1954-09-06
Abstract: 787,902. Magnetic recording and reproducing apparatus. STANDARD APPARATE FABRIK GES. Sept. 6, 1954, No. 25747/54. Class 40 (2). In a magnetic tape record apparatus the tracks on the tape are closely spaced, for example 2 per m/m., each trace consisting of a part parallel with the edge of the tape, and a second part connecting the next trace and arranged at a defined angle therewith, a drive roller being provided having guide rings for accurately locating the tape, and the transducer being provided with layers, foils or shaped pieces of diamagnetic or ferromagnetic materials. The embodiment described with reference to Fig. 2 shows an endless coil 10 of tape supported on a driving plate 11, and a driving roller 9 having conical guides 12 of a hard material such as agate, hard glass or chromium. The transducer 20 traverses the width of the tape by means of a lead screw 19 which is normally stationary until a notch 6 in the tape operates a switch which causes a pawl 16 to be withdrawn from engagement with a pin 17 on a disc 18 solid with lead screw 19 and driven by a friction clutch 21. A counter 23 geared to lead screw 19 indicates the particular track being recorded or reproduced, while a knob 24 enables a particular track to be selected, a disc 26 coupled thereto serving to disengage the pawl 16 from the pin 17. Means are described with reference to Fig. 3 (not shown) whereby the direction of rotation of the lead screw may be automatically reversed at the end of the traverse of the transducer 20.
Patent GB-834875-A (GB)
Title: Underwater coatings resistant to growths
IPC: C09D5/16
Filed: 1958-08-11
Abstract: A composition for growth-resistant underwater coatings contains a chlorinated dihydroxy-diphenyl and/or metal salts thereof.  The preferred substance is tetrachloro-dihydroxy-diphenyl and/or its calcium, zinc, copper, or mercury salt.  The compositions may also contain metal oxides, e.g. zinc oxide; binders such as colophony, tall oil, alkyd resins, and cyclised or chlorinated rubber; solvents, and driers. In examples such compositions are applied to metal plates previously coated with (1) chlorinated rubber-red lead primer and chlorinated rubber-wood oil paint, or (2) styrene-alkyd-red lead undercoat and chlorinated rubber-alkyd resin paint.ALSO:A composition for growth-resistant underwater coatings contains a chlorinated dihydroxydiphenyl and/or metal salts thereof.  Examples are given of compositions containing colophony, medium fatty glycerol linseed oil alkyd resin, cyclized rubber, lacquer benzine, metallic naphthenates, and (1) zinc oxide plus zinc salt of tetrachlorodihydroxy diphenyl; or (2) zinc oxide, copper oxide, and copper salt of tetrachlorodihydroxydiphenyl.
Patent GB-188476-A (GB)
Title: Improvements in and relating to electric switches
IPC: H01H9/54
Filed: 1921-09-29
Abstract: 188,476. British Thomson - Houston Co., Ltd., (General Electric Co.). Sept. 29, 1921. Sparking, preventing.-The contacts of circuitbreaking apparatus are shunted by a vacuum discharge device and means are provided, for example, a pneumatic blow-out, for increasing the impedance of the gap to cause a breakdown of the discharge device and consequent dissipation of the spark therein. As shown the switch 7 controlling an inductive circuit is mounted on the cover of a box containing a vacuum discharge device with opposed electrodes 13, 14 of brass and graphite as described in Specification 5542/14, [Class 39 (i), Electric lamps, Arc &c.]. At the time of opening the switch a jet of air or other ga.s supplied by a pipe 15 passes between the contacts and attenuates the arc, increasing the potential across the gap until the gap of the vacuum tube is jumped without damaging the contacts.
Patent GB-156926-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M7/17
Filed: 1919-10-21
Abstract: 156,926. Royce, F. H., and Rolls- Royce, Ltd. Oct. 21, 1919. Spray carburettors.-A carburettor having a nozzle of the kind consisting of three concentric tubular chambers formed by a perforated tube b connected at the bottom to the fuel supply and having fuel orifices b<2> at the top, a guard tube b<5> in which fuel accumulates, and an air-supply tube b<6>, is provided with a fuel-valve and an air-valve actuated simultaneously by suction. The fuelvalve consists of a stem b<8> provided at the bottom with tapered grooves b<9> which act in conjunction with a nipple b<3> to control the fuel supply. The air-valve is in the form of a tube c sliding in the mixing-chamber a<4> and controlling the air inlets a, the valve in its lowest position seating on the air supply tube b<6> of the nozzle. The tube b<6> is provided at the bottom with holes b' through which air enters for aerating and slow-running. The air-supply tube b<6> may be cylindrical and provided with a flat diaphragm upon which the airvalve c seats. The fuel-valve b<8> and air-valve c are carried by a rod d<5> attached to a piston d' which is lifted by suction acting through holes d<11>, d<12>, air entering beneath the piston through holes d<10>. The outlets a<1> to the engine are controlled by a barrel-shaped throttle e operated by a lever e'.
Patent GB-832355-A (GB)
Title: Improvements relating to electrically heated hot plates
Inventor: HICKS ANTHONY MICHAEL
IPC: F24C15/10
Filed: 1956-08-24
Abstract: 832,355. Electric hot-plates. SIMPLEX ELECTRIC CO. Ltd. Aug. 22, 1957 [Aug. 24. 1956], No. 25867/56. Class 39(3) [Also in Group XXXVI] A sheathed electric heater 17 of a hotplate for a cooking stove has contact pins 21 connected to a main connector 14 on the stove by an adaptor 26. The adaptor comprises a channel shaped insulating body divided into three compartments, the outer compartment containing clip contacts 34 for receiving the bifurcated pins 21 and the central compartment containing a clip contact 25 for receiving a double conical pin 24 on the hot-plate member, this pin and the contact 25 co-operating to hold the hot-plate member in engagement with the adaptor. Contacts 34 are connected to pins 27 secured to the base of the channel shaped body and contact 25 is connected to an earth pin. The ends of the sheaths carry inner bushes 20, outer bushes 22. and an elongated flanged plate 23 is brazed around the ends of the sheaths to space them apart. The hot plate may be of cast iron