baber/WOPTO huggingface dataset:
Patent GB-803824-A (GB)
Title: Improvements in or relating to a magnetic band-brake, especially for electric motors
IPC: H02K7/102
Filed: 1955-11-04
Abstract: 803,824. Electric motor driving arrangements. STEPHAN, S., [trading as STEPHAN UND SOHNE, A.]. Nov. 4, 1955 [Nov. 9, 1954], No. 31637/55. Class 35. [Also in Group XXXIV] In an electromagnetically released band brake particularly for electric motors, the brake band comprises a split outwardly sprung ring having ends so mounted that each end is free to move towards the other and in the opposite direction against an abutment whereby on braking the band is tightened in either direction of rotation. . In the embodiment illustrated a brake pulley b, provided with spokes c which produce an air flow through the pulley to cool the braking surfaces and the motor, is mounted on the armature shaft a of an electric motor and is adapted to be braked, when the electromagnet q ceases to be energized, by a brake band d in the form of a split outwardly sprung ring, the inner side of which carries a brake lining e. Adjustable springs i and linkage o, m, k act on levers h to force abutment shoulders f on each end of the brake band towards each other to apply the brake. Depending upon the direction of rotation of the brake pulley b, the appropriate shoulder f is urged against the corresponding lever h whilst the other shoulder f is carried forward with the pulley. The magnet may be connected in series with the motor for producing a large initial force on being switched on and may be connected in parallel with the motor for producing a sufficient holding force.
Patent GB-193510-A (GB)
Title: Improvements in or relating to ploughing machines
IPC: A01B3/18
Filed: 1921-11-25
Abstract: 193,510. Puech, J. Nov. 25, 1921. Addition to 175,436. Turn-wrest ploughs; wheels, arrangement of; lifting frames manually. - The plough described in the parent Specification has its rear supporting wheel replaced by a pair of wheels 1, 1<1>, of which the axle. 2 is carried by a pin pivoted in the rear fork 3. The fork 3 is prevented from swinging round its pivot 5 more than 90‹ from its normal position by stops 3<1> which are engaged by a bar 26 adapted to be lowered into operative position by a hand-operated cam 42. The spring-cushioned rocking member 7, carrying the pivot 5, is fitted with a hook 10<1> that can engage a projection on the rear frame 12 to prevent the springs 11 from acting. The rear cross-bar 50 of the plough. which swings about the fixed beam 16, carries an adjustable notched lug 45, 46 on each side and a central notched piece 47. A head 48, secured to the main frame by a pivot 49 and guided by springs 57, carries stops 58<1>, 59<1>, adjustable by a right-andleft-hand screw 56, operated by a handle 65. The stops 58', 59', which are adapted respectively to engage with the notched lugs 45, 46 in accordance with the particular set of ploughs in operation, are adjusted to set the shares at the desired angle. To release the ploughs for swinging, the head 48 is moved backwards by the handle 64 or by a foot-operated lever 63. Springs 51, 52 return the head to its normal position. During transport the plough frame is locked with both sets of ploughs raised from the ground by the head 48 engaging the central notched lug 47.
Patent GB-209405-A (GB)
Title: Improved method of and apparatus for producing mist or fog for irrigating or treating crops
IPC: B05B3/10
Filed: 1923-12-17
Abstract: 209,405. Balinshy, P. de, (Assignee of Djavakhow, A., and Hlasko, V.). Jan. 4, 1923, [Convention date]. Addition to 202,647. Rotary apparatus; roses and perforated nozzles. -A modification of the method of producing mist or fog for treating crops described in the parent Specification consists in pulverizing water by the combined action of centrifugal force and of air currents due to a partial vacuum created behind the distributing nozzles by the rotation of the apparatus, the nozzles being directed oppositely to the direction of rotation and a powerful flow of air being provided to assist in projecting the mist to a distance. Modified apparatus comprises a centrifugal pulverizer having nozzles projecting therefrom in substantially tangential directions. The pulverizer consists of cones 2, 3 connected together at the periphery by a ring 4 provided with ratchet-shaped teeth. The water enters through a pipe 1 and leaves through nozzles 20 in the radial parts of the teeth, the pulverizer being provided with radial partitions and being rapidly rotated in the direction of the arrow. Each nozzle comprises a head 8, a slotted disc 8<1>, and a cap 9. The pressure may be augmented by a pump. A blower for sending the mist to a distance comprises two partitioned cones connected by a peripheral ring provided with slots 13 through which escapes the air that enters through orifices 14. The blower and sprayer may be mounted on the same shaft. The Specification as open to inspection under Sect. 91 (3) (a) states that the toothed ring may be replaced by a plain ring with nozzles and that the apparatus may be motionless, the pressure being produced by a pump. It also describes the apparatus shown in Fig. 3 (Cancelled). This consists of two or more conical pipes attached to a central cap 10 and provided with nozzles 18. This subject-matter does not appear in the Specification as accepted.
Patent GB-766143-A (GB)
Title: Improvements in pallets for slabs of slate, flagstone or the like
IPC: B65D19/00
Filed: 1954-11-02
Abstract: 766,143. Pallets for handling loads. TATKO, J. Nov. 2, 1954 [March 3, 1954; Oct. 5, 1954; Oct. 5, 1954], No. 31695/54. Class 78 (4). Slots in the upper deck of a pallet for handling slates and the like form pockets 118, Fig. 7, 118a, 119, 119a for receiving slates S, Fig. 9, which then form walls between which the remaining slates may be supported on the upper deck. The pockets are defined by adjacent stringers 116, 117, 116a, 117a, which, together with further stringers 134, 135, space the upper and lower decks to which they are nailed or bolted. The bottoms of the pockets are formed by the lower deck and the ends of the pockets may be closed by longer boards 121, 122 in the top deck or by plugs bolted between the stringers 116, 117, or 116a, 117a or by bolts extending between the stringers. The pockets on each side may be divided by a longer board 132 in the top deck as shown or may extend for the full width of the pallet. The L-shaped metal brackets 137 shown reinforcing the ends of the boards 121, 122, 132 may be replaced by U- shaped members embracing the lower deck as well as the upper, and in one construction, in which the stringers 134, 135 are replaced by a single central stringer, these members are omitted. The pallet may be constructed of material other than wood.
Patent GB-1361994-A (GB)
Title: Disc brakes
IPC: F16D65/095
Filed: 1971-07-06
Abstract: 1361994 Spot-type disc brakes GIRLING Ltd 22 June 1972 [22 June 1971 6 July 1971] 29295/71 and 31708/71 Heading F2E To facilitate replacement of the pads 28 in a spot-type disc brake without removal of the road wheel the pads 28 are mounted on removable drag-taking pins 43 and anti-rotation pins 44, only one each of pins 43, 44 being associated with a given pad. Pins 43 pass through holes in the two halves 22, 33 of the caliper housing 21 and in the embodiment shown are retained by means of a keeper 46 and bolt 47. The pin, 43, head may be plate-like, being secured by bolts 66, Fig. 9 (not shown). Seals 50, 51 prevent the ingress of dirt into the holes. The pins 43 may be screw-threaded into one caliper half 23 and be a sliding fit in the other 22. As shown in Fig. 6, the pins 43 may be screw-threaded into a threaded collar 52 retained in position by a grub screw 53. In an alternative construction, Fig. 7 (not shown), a threaded keeper (56) is provided in the caliper half 23 which, after removal, exposes a threaded bore (58) in the pin 43. A keyway (54) at the other end of pin 43 in caliper half 22 allows an extractor and bolt, the latter engaging in the bore, to remove the pin. In a modification of this construction, Fig. 11 (not shown), the keeper is not threaded but is a plug retained by a circlip. In a further embodiment, Fig. 8 (not shown), the threaded keeper is cup-shaped through the bottom of which extends a spigot (60) to which the keeper is locked by a circlip (61) and a washer (62). Two pistons 26, and cylinders 27 are provided on each side of the disc to actuate the pads.
Patent GB-935242-A (GB)
Title: Improvements in pulse width modulators
IPC: H03K7/00
Filed: 1959-09-17
Abstract: 935,242. Electric analog calculating. GENERAL PRECISION Inc. Sept. 17, 1959 [Sept. 19 1958], No. 31744/59. Class 37. [Also in Group XL (c)] A pulse-width modulator which may be used as a multiplier or divider comprises a source 100, Fig. 1, of alternating voltage, e.g. a sawtooth waveform 1, Fig. 2, supplying, through transformer 103, a limiter amplifier 107 which becomes saturated at an input of a few millivolts, thereby producing a square-wave output 3A having equal positive and negative pulse durations. The output of amplifier 107, obtained in push-pull arrangement on conductors 108, 110 operates a trigger circuit 112 producing a single ended output which is closely limited to a voltage Vr applied in opposite polarities to terminals 114, 115. The output of trigger 112 after passing through filter 113 and resistor R-104 results in a direct feed-back voltage being applied to linear amplifier U-100. A first variable voltage Vy is applied at terminal 120, Vr being a second variable voltage, and it is shown that if amplifier U-100 has a high gain the voltage Vb appearing at terminal 105 of secondary winding 103 is directly proportional to Vy/Vr. The voltage Vb displaces the sawtooth input to amplifier 107 as shown at 2, Fig. 2, and results in a square-wave 4 in which, if Vb is positive, the positive pulses are of longer duration than the negative pulses, the pulse elongation or modulation being directly proportional to Vy/Vr. The pulse elongation produced is independent of the amplitude, frequency and linearity of the sawtooth voltage so that source 100 may be replaced by a sine-wave generator, Fig. 4 (not shown).
Patent GB-317975-A (GB)
Abstract: 317,975. Strickler, T. J., and Holden, C. D. Aug. 1, 1928. Spray carburettors. - Means operated by the ignition distributer am adapted to regulate the carburettor fuel valve and to control an air supply to the engine manifold, which air supply may be replaced or supplemented by a supply of heated steam or air containing water vapour. The fuel valve D of the carburettor C is connected by a forked rod G, arm 6, adjustable rod 7, and arm 5, to the spark control rod J which is connected by a rod K to the ignition distributer H. The distributer is also connected by a rod 15 to a bell-crank lever 14 connected respectively by rods 24, 12 to an air inlet cock 17 and to a cock 10 admitting steam, or air and steam, from the overflow pipe L of the radiator. The arrangement is such that the fuel supply is restricted and the cocks 17 and 10 opened when the spark is advanced.
Patent GB-447052-A (GB)
Title: Improvements in or relating to apparatus for controlling the temperature of fluids applicable to the cooling of air
IPC: F28F27/00
Filed: 1934-11-06
Abstract: 447,052. Cooling or attemperating fluids. HALL & KAY, Ltd., HALL, J. H., and MYERS, A., Stockport Road, Ashtonunder-Lyne. Nov. 6, 1934, No. 31817. [Classes 29 and 64 (ii)] Air is passed through a shaft 13 containing a cooling coil 12 through which brine is circulated by a pump 9 connected to the auxiliary compartment 5 of a heat-insulated tank having a main compartment 4 communicating through a duct formed by partitions 6, 7 with the auxiliary compartment. The brine in the main compartment is maintained at a constant temperature by an evaporator coil the flow of refrigerant to which is regulated by a valve 20 controlled by a thermostat 19. The flow of the brine returning from the coil 12 is diverted into either or both of the tank compartments by a flap valve 16 controlled by a thermostat 18 in the air shaft. In another arrangement, the liquid flowing through a heat-exchanger 26, Fig. 2, is maintained at a constant temperature by liquid circulated by a pump 9 conducted to a tank having main compartments 4, 4<a>, containing cooling and heating coils 8, 22 respectively, and an auxiliary compartment 5. The flow of the liquid to the compartments 4, 4<a> is regulated by a valve 16 controlled by a thermostat 88, and the temperatures of the liquid in these compartments are maintained constant by thermostats 19, 24 controlling the supply of media to the coils 8, 22 respectively.
Patent GB-811729-A (GB)
Title: Improvements relating to undergarments
IPC: A41C1/02
Filed: 1955-11-08
Abstract: 811,729. Foundation garments. GAINE SCANDALE (GREAT BRITAIN) Ltd. Nov. 8, 1955 [June 1, 1955], No. 31899/55. Class 141 A girdle, pantie-girdle or other foundation garment is formed from a single piece 32 of warp knit elastic fabric and is shaped at the upper part by cutting along lines 36-46 to form inclined notches with unequal sides which are folded over and sewn together by faggot stitching to form darts 19-21. The ends 15a of the fabric 32 are folded back along the line 16 to provide reinforced sections 14, 15 joined by zig-zag stitching along the line 16.
Patent GB-448429-A (GB)
Title: Improvements in air-cooling means for sleeve valve internal combustion engines
IPC: F02F1/34
Filed: 1934-11-06
Abstract: 448,429. Two-part couplings. ROWLEDGE, A. J., Ellerslie, Trowels Lane, Derby. Nov. 6, 1934, No. 31920. [Class 38 (i)] [See also Group XXVII] In a sleeve-valve internal-combustion engine cooling-air baffles g support the ignition leads through insulating covers h<1>, Fig. 4, having flanges h<2> retained by spring clips h<4>, contact being made by a spring-pressed plunger j.
Patent GB-398673-A (GB)
Title: Improvements in or relating to diaphragms for pressure electrolysers
IPC: C25B9/19
Filed: 1932-11-11
Abstract: 398,673. Diaphragms for pressure electrolyzers. MENTZEL, A., 2, Nordsternstrasse, Sch÷neberg, Berlin. Nov. 11, 1932, No. 31949. Drawings to Specification. [Class 41.] In cells for electrolysis under high pressure, the diaphragms employed are of asbestos board or paper or of materials having a similar degree of uniform fine porosity as distinguished from asbestos fabrics having larger scale apertures. A porosity of 30 per cent is suitable. Asbestos boards made from long-fibred asbestos free from impurities such as metallic oxides are preferred ; binding agents not attacked by the electrolyte or by generated gases are employed in their manufacture; solutions of ethyl or benzyl cellulose in benzene are suitable. The proportion of binding agent should be insufficient to close the natural pores of .the asbestos. A diaphragm may be inserted under pressure between permeable metal carriers which may constitute electrodes. The structure is mounted in grooves in insulating frames. Specification 372,451 is referred to.
Patent GB-262276-A (GB)
Title: Improvements in and relating to hand-operated machines, for cutting balata and woven driving belting, leather, paper and the like
IPC: B26D5/10
Filed: 1925-12-18
Abstract: 262,276. Burgess, A. H. Dec. 18, 1925. Pivoted-blade machines. - In a machine for cutting belting &c. a beam v is pivoted on a pin e in side cheeks a. The beam has on its underside an inclined groove f in which slides a carrier o with knife p. Rollers t on the carrier contact with the grooves f. A curved slot in the carrier engages a pin x in the beam. The other end of the beam is pivoted on a pin k to the bifurcated end of an operating lever g connected by a pin l to the carrier and by a pin m with a forked link pivoted on a pin h to the cheeks. The knife cuts against a soft bed y. When the arm g is swung on the pivot k the knife carrier slides along the beam and is fed towards the work by the groove. The pins e, h are mounted in eccentric bushes for adjustment.
Patent GB-647544-A (GB)
Title: Improvements in or relating to steering mechanism for lift trucks
IPC: B66F9/075
Filed: 1947-12-03
Abstract: 647,544. Exhaust silencers. HYSTER CO., (formely Williamette Hyster Co.). Dec. 3, 1947, No. 31985. Convention date, Dec. 31, 1943. [Class 7 (ii)] [Also in Groups XXXI and XXXII] In a motor vehicle (see Group XXXI) on each side of the chassis frame is formed a silencer chamber 35, the outer wall of which is formed by a chassis frame member 22. The exhaust manifold pipe 44 from one side of the engine 50 leads into the chamber discharging the exhaust onto the surface of water in the chamber, and the exhaust is discharged from the chamber through a pipe 42. The chamber is filled to the required level 49 with water through a filler cap 48.
Patent GB-1163586-A (GB)
Title: Improvements in or relating to articulated vehicles
Inventor: MORGAN DAVID HIPPESLEY
IPC: B62D53/06
Filed: 1966-07-15
Abstract: 1,163,586. Transporting special loads. D. H. MORGAN (ENGS.) Ltd. 23 May, 1967 [15 July, 1966], No. 32025/66. Addition to 1,058,601. Heading B7B. A goose-neck fitting 12 carried by a fifth wheel coupling has a number of recesses 33 to engage complementary shaped blocks 34 on the trailer 19, and trunnions 23 to engage the folddown wings 17, the parts being held in operative position by retractable rods 39.
Patent GB-446979-A (GB)
Title: Improvements in automatically variable change-speed gearing
IPC: F16D67/00
Filed: 1934-11-08
Abstract: 446,979. Controlling change-speed gearing. KIEP, J. N., 22, Reichskanzlerstrassc, Altona-Hochkamp, Germany. Nov. 8, 1934, No. 32180. [Class 80 (ii)] [See also Group XXIX] Change-speed gearing 8 is connected to an hydraulic coupling 3, 4, and the slip in the coupling is adapted to effect speed changes in the gearing suitable to the load on a tail shaft 9, which may be the propeller shaft of a vehicle. The gearing 8 may be mechanical or hydraulic. In one form, dynamos 13, 14 driven respectively from the driving and driven shafts 2, 5 of the coupling arc connected to a suitable differential electric control device 17 which effects the speed changes through suitable means either directly or through a relay. Thus the differential device 17 may operate a control valve 19 connected to a suitable source 20 of oil or air under pressure so that pressure fluid is admitted to one side or other of the piston of a servomotor 23 which effects the speed changes.
Patent GB-1160271-A (GB)
Title: Testing the Response of Servo Systems
Inventor: BOOTH DAVID FRANKLAND
IPC: G05B23/02
Filed: 1965-07-28
Abstract: 1,160,271. Testing servosystems; correlator systems. SPERRY RAND Ltd. Oct. 20, 1966 [July 28, 1965], No. 32201/65. Heading G1U. [Also in Division H3] In an arrangement for testing a servo system, the response of the servo to a unit impulse is determined by applying a pseudo random binary noise signal derived from a feedback shift register as an input to the servosystem and correlating the system output with the input delayed by varying amounts. The plot of the correlation function against delay time gives the impulse response for real time. Since the correlation integration cannot be carried out over an infinite time period, only an approximate value can be obtained and extraneous noise may result in apparent failure of a servo when the correlation values are compared with reference values related to normal servo operation. A predetermined number of failure in such comparisons is therefore allowed. To test a fast acting servo 11, pseudo random binary noise is generated at 12 by a feedback shift register controlled from clock 13, and applied via a buffer 19, whose level may be set from a programme unit 14, to the system 11. Three of the generator outputs are also selected by a solenoid switch 15 and passed to a delayed noise generator 17. This system provides 11 different delays so that 11 points on the response curve may be obtained. The outputs from the servo 11 and the delay 17 are passed to a correlator 29 whose output integrated over one noise cycle passes to a comparator 25. There the correlated output is compared with a standard value set in accordance with the delay from the programme unit 14. If the deviation from the standard value is within an acceptable range the comparator delivers a positive GO signal to a logic unit 18 which steps on the switch 15 to set up the next delayed noise signal. If a zero or NO GO output is obtained the logic unit causes the system to repeat the test with a particular delay, and will not provide a fault indication at 38 until four such tests have resulted in failure. If four such failures occur for four different delays, overall failure is indicated. The overall correlation curve or specific correlation values, may alternatively be provided as outputs from the system. An alternative system for testing slow servos is described Fig. 4 (not shown), wherein the programme unit is replaced by selector switches and the output from the servo under test is passed to a voltage to pulse frequency convertor. The pulses from this are passed to a counter which runs backwards and forwards depending on the polarity of the delayed noise with which it is compared. Over a test cycle the number in the counter represents the approximate correlation function. Since each test takes a relatively long time, tests for each delay are conducted simultaneously by a parallel arrangement of delayed noise generators and counters.
Patent GB-1067568-A (GB)
Title: Adhesive compositions
Inventor: HORROCKS JAMES ANTHONY
IPC: C08L7/02
Filed: 1963-05-10
Abstract: A pressure-sensitive adhesive composition capable of keying on to a polypropylene or polystyrene substrate comprises a natural rubber latex wherein the tack is controlled by the presence of an aqueous, non-cross-linked addition polymer emulsion, the weight of addition polymer being in the range of 20 to 80% of the total solids material present, the polymer being incompatible with the rubber and non-tacky. The addition polymer may be a homopolymer, copolymer, or terpolymer of styrene, methacrylate ester, or acrylate ester, optionally cotaining a polyethylene wax.  The composition may contain antioxidant, surface-active agents, tack agents and anti-tack agents.ALSO:Polypropylene and polystyrene film are coated with an adhesive composition comprising a natural rubber latex and, as tack-controlling agent, an aqueous, non-crosslinked addition polymer emulsion, the weight of addition polymer being 20-80% of the total solids present, and the polymer being incompatible with the rubber and non-tacky.  Suitable polymers are polybutyl acrylate, polymethyl methacrylate, polystyrene, acrylate/methacrylate copolymers, acrylate/styrene copolymers, and terpolymers of styrene/methyl methacrylate/ethyl acrylate.  The composition may contain antioxidant, surface active agent, tack agent, and an anti-tack agent, e.g. polyethylene wax.  Thickening agents such as carboxymethyl cellulose, methyl cellulose casein, ethylene oxide polymers and water soluble acrylate polymers.
Patent GB-1353175-A (GB)
Title: Fatty acids
IPC: C07C51/00
Filed: 1971-07-09
Abstract: 1353175 Fatty acids DYNAMIT NOBEL AG 9 July 1971 [3 Aug 1970] 32403/71 Addition to 1331833 Heading C2C Light-coloured, colour stable fatty acids (C 8 - C 18 ) are prepared by heating the crude acids with an aliphatic or hydroxy-aliphatic polycarboxylic acid (C 2 -C 10 ) or a cycloaliphatic polycarboxylic acid or with an alkyl (C 1 -C 8 ) ester thereof, followed by a distillation under reduced pressure. The polycarboxylic acids, e.g. oxalic, maleic, succinic, adipic, malic, tartaric, citric and cyclohexane dicarboxylic acids, or the esters (C 1-4 ) thereof may be used in an amount 0À05 to 0À2% by weight at from 180 to 280 C. Alkyl esters of titanic or zirconic acid may be present in the process. Examples describe the treatment of coconut, palm oil kernel, and unhardened tallow fatty acids.