baber/WOPTO huggingface dataset:
Patent GB-841064-A (GB)
Title: Improvements in or relating to magnetic amplifiers
IPC: H03F9/06
Filed: 1958-09-24
Abstract: 841,064. Magnetic amplifiers. GENERAL ELECTRIC CO. Ltd., and GLOVER, B. W. Sept. 24, 1958 [Sept. 24, 1957], No. 30008/57. Class 40 (9). A full-wave magnetic amplifier with a load 18 Fig. 1, comprises two half-wave resetting amplifiers with cores 1, 2 and 3, 4. The reset windings 9, 10 on cores 1, 2 are connected in series and rectifier gates 31, 32 in a switch 23 controlled by the power supply on terminals 35, interrupt the circuit in the half periods in which setting current is not required. The two output windings 5, 6 are balanced by potentiometer 39 to give zero output with zero control signal. The second half-wave amplifier comprising cores 3, 4 is arranged in a similar manner. The control signal is applied to terminals 20 as a modulation of the supply frequency. Phase reversal of the control signal reverses the direct current in the load 18. The alternating currents supplied to terminals 16, 20, 35 are all of the same frequency but they may differ in phase. In a modification, Fig. 2, the direct current output in load 40 is controlled in magnitude and direction by a direct current control signal on terminals 20. The output circuits of the half-wave amplifier are interrupted in the appropriate half-periods by a switch 45 like switch 23. The circuits of Figs. 1 and 2 may be modified to respond to direct current signals and alternating current signals respectively. The amplifiers shown in Figs. 1 and 2 may be connected in cascade.
Patent GB-464846-A (GB)
Title: Improved attachment for the supporting members of pattern cards of jacquard machines
IPC: D03C19/00
Filed: 1935-10-31
Abstract: 464,846. Jacquard pattern chains. GREEN, H., and PARKES (NOTTINGHAM), Ltd., A. & F. H. Oct. 31, 1935, No. 30034. [Class 142 (i)] The rods 2 which project beyond the sides of the cards to engage supporting guides are secured to the cords 3 connecting the cards by short lengths of coiled wire 5, the close end coils a of which grip the rod 2 at each side of a cord 3 and the middle coil c clamping the cord 3 against the rod 2.
Patent GB-292837-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D34/42
Filed: 1927-11-09
Abstract: 292,837. Drummond, A. Nov. 9, 1927. Lawn-mowers.-The spindle of the light front or rear roller that is adjustable for varying the cut of a lawn-mower is provided with hardened journals or ends of cylindrical formation engaging with anti-friction balls located in a surrounding ball race housed in a cavity or recess in the roller brackets of the machine. The roller a may be made up of sections secured on the spindle c so as to rotate with it. The spindle may be provided with hardened cylindrical bushings d secured on its ends. Each of the adjustable supporting-brackets b is provided with a hole e for the spindle and with a tapering counter-bore f to receive a correspondingly shaped open-ended ball race g in which the balls are held by a washer h. A cap i is secured on the bracket by screws and holds the. washer h in place. Felt or other compressible washers k, n are provided beneath the cap i and between the roller a and the bracket b. The inner face of the cap i is recessed to hold grease &c. Endwise movement of the spindle c is limited by grub-screws l provided with lock-nuts m.
Patent GB-280040-A (GB)
Title: Improvements in wheels, pulleys, winding drums or the like
IPC: B60B3/08
Filed: 1926-11-27
Abstract: 280,040. Lang, A. A. D. Nov. 27, 1926. Drums.-The. invention relates to winding-drums, vehicle wheels and pulleys, and is shown as applied to a vehicle wheel. The rim f is secured by compressing the wood discs a between a fixed hubflange c<1> and a loose collar e which is adjusted by a nut d. Each disc, laminated or otherwise, may be formed in a single piece, or on sectors cemented together to form a closed disc before assemblage in the wheel. Specification 230,156, [Class 144 (i), Wheels for vehicles], is referred to.
Patent GB-1391212-A (GB)
Title: Electrically operated window lifting device
IPC: E05F15/697
Filed: 1972-06-27
Abstract: 1391212 Electric window lifting device BROSE-VERWALTUNGS GmbH 27 June 1972 [28 June 1971] 30097/72 Heading E2M In an electric window lifting device in which all components are mounted on a ribbed base plate 2 formed as a diecasting, preferably a zinc die casting, the device comprises: an electric motor 3 attached at flange 4 to a gearbox 5 which acts via intermediate wheel 8 on a quadrant 9, and a lifting arm 11 linked at 12 to a radial arm 10 fast with the quadrant; the lifting arm 11 being attached at its outer end (not shown) to the window and being slidable in a guide 32 which is pivoted to the base plate. An abutment 13 on the quadrant 9 engages a stop 14 on the base plate when the window is in its lowered position and a spring 29 between quadrant and plate to be placed in tension in this lowered position for the purpose of aiding the lifting movement. Spring fingers 24 are formed on the plate and elements 25 are carried on these fingers and on raised bosses 26 to engage both sides of the quadrant.
Patent GB-1356087-A (GB)
Title: Alpha-cyanobenzyl cyclopropanecarboxylates
IPC: C07C255/39
Filed: 1972-06-27
Abstract: 1356087 α - Cyanobenzylcyclopropanecarboxylates SUMITOMO CHEMICAL CO-Ltd 27 June 1972 [29 June 1971] 30140/72 Heading C2C  α - Cyanobenzylcyclopropanecarboxylates of the general formula wherein A is O or CH 2 , R 1  and R 2  are each independently, Hal or a C 1-4  alkyl group, R 3  is H or CH 3 , R 4  is H, CH 3 , C 6 H 5  or in which R 5  is H or CH 3  and R 6  is H, CH 3 , methoxycarbonyl or methoxy methyl group, or R 5  and R 6  together form a polymethylene group, provided that when R 3  is CH 3 , R 4  is a hydrogen or CH 3  group, and m and n are independently 0, 1, 2 or 3 are claimed per se. The compounds may be prepared by either reacting a cyclopropane carboxylic acid or a reactive derivative thereof of formula with a compound of formula wherein B is OH, Hal or a tosyloxy group or reacting a cyclopropane carboxylic acid halide of formula where X is halogen with an aldehyde of formula in the presence of sodium or potassium cyanide and optionally in the presence of an aprotic solvent. The compounds are used as pesticides and herbicides.
Patent GB-247617-A (GB)
Title: Improvements in process of recovering oil or fat from milk and cream
IPC: A23C15/14
Filed: 1923-11-30
Abstract: 247,617. White, A. E., (Milk Oil Corporation). Nov. 30, 1923. Butter.-Milk or cream is repeatedly washed and the milk fat or oil separated from the skim milk and other liquid by centrifugal separations to remove the casein the other remaining solids other than fat and the water. The small amount of casein that remains with the fat is then coagulated by the addition of rennet. The milk fat or oil separates out and is separated by passing through a whey separator preferably with the addition of about four parts of water. The fat or oil may then be further dried by means of an oil separator.
Patent GB-1358778-A (GB)
Title: Double universal joint
IPC: F16D3/34
Filed: 1972-06-28
Abstract: 1358778 Universal joints SOC ANON DBA 28 June 1972 [2 July 1971] 30337/72 Heading F2U A double universal joint of the type comprising torque transmitting balls 22 between interlaced arms 14, 18 of a central ring 14 and two shaft 24, 26 mountable heads 10, 12 has a ball 30 on one head 10 engaging a socket 28 in the ring 14 centred at O 1  in the plane P containing the centres of the balls 22 therebetween, and a ball-and-socket joint 30-32 connecting the two heads 10, 12 and centred at O 3  between (preferably mid-way) the planes P. As shown the socket of the further ball-and-socket joint is formed in the ball 30. The balls 30, 32 may have small flats to facilitate assembly. The ball 32 may have a bore slid on to a rod 44, Fig. 3.
Patent GB-215029-A (GB)
Title: Improvements in or relating to wheels and axles suitable for use with railway and like vehicles
IPC: B24B3/46
Filed: 1922-11-07
Abstract: 215,029. Cammell, Laird, & Co., Ltd., and Bailey, A. S. Nov. 7, 1922. Spring wheels with continuous outer rigid ring and rubber-ring and like cushions; hubs.-The tyre e of a railway vehicle wheel has a groove e' on the inner periphery and is mounted on a resilient ring b, preferably of rubber, held in compression between the tyre and wheel rim a' and retained laterally by means such as a fixed rim flange a<2> and detachable ring f, which may be adjusted to vary the degree of compression of the resilient ring b. To facilitate assembly, the ring b may be in segments which are placed in he groove e<2> of the tyre and forced on to the rim over a conical mandrel which compresses the ring radially. The flange a<2> and ring f may embrace the sides of the tyre, as shown in Fig. 3, and may be provided with overhanging edges a<3>, f<3> engaging grooves in the sides of the tyre to prevent it flying off in the event ofbreakage. The centre of the wheel, which may be in the form of a disc, may be rigidly fixed, as by riveting, to a tubular or solid axle c and journal d.
Patent GB-284597-A (GB)
Title: Apparatus for detecting shocks in a moving mechanism
IPC: G01H1/00
Filed: 1927-11-12
Abstract: 284,597. Vatinet, H. V. E., and Durand, C. Jan. 31, 1927, [Convention date]. Telephonic vibration-detectors.-Apparatus for detecting vibrations, such as noises due to abnormal operation of an engine &c., comprises an electrostatic or electromagnetic device with one element connected directly to the vibrating body, and the other so supported as to be unaffected by the vibrations. As shown in Fig. 1, the apparatus comprises a hollow casing 1 adapted to be screwed on to a stud on the engine &c., and carrying fixedly an armature 9 in the form of an adjustable screw. A permanent magnet with pole-pieces 5 and coils 6 is embedded in spongy rubber &c. 3 within the casing, with its poles adjacent the armature 9. The rubber packing is pressed down by a plate 11 and screws 12. Leads from the coils 6 pass through the casing to an amplifier 8 and telephones 14, or an oscillograph. A controlling resistance may be arranged in shunt to the amplifier input. Fig. 2 shows an electrostatic apparatus comprising an electrode 16 integrad with the casing 1 and an electrode 15 embedded in rubber &c. within the case.
Patent GB-757922-A (GB)
Title: Improvements in or relating to shaft-position determining apparatus
Inventor: LOLLEY RAYMOND ALAN
IPC: G01G23/36
Filed: 1953-11-04
Abstract: 757,922. Selective signalling by counting impulses. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 15, 1954 [Nov. 4, 1953], No. 30445/53. Class 40(1) [Also in Group XL(b)] A shaft, e.g. of weighing apparatus which signals its movements by sending impulses to step a polycathode gas-filled tube counter in one direction or the other according as its rotation is clockwise or counterclockwise controls the generation of two sets of impulses having a phase difference which is not an even multiple and is preferably an odd multiple of 11/2. One set is squared and differentiated to provide a + and a - impulse for each original impulse and the other controls a gate to cause only the + or only the - impulses to be effective on the counter. The impulses may be produced photo-electrically with the aid of a disc 12 with alternate opaque and transparent sections co-operating with a screen with two sets of markings staggered as shown in Fig. 3 and co-operating respectively with two different photo-cells. Alternatively, the markings on the disc and the screen may be interchanged. Discriminating and counter circuit. Impulses in tubes V1, V2 are brought by saturated amplifiers V3, V4 to rectangular form as at A, B, Fig. 5. The output of V3 is differentiated by C1, R1 to produce the wave C. For clockwise rotation, the + impulses occur when cell V2 is illuminated and a flip-flop valve pair V5 is arranged in conjunction with a network of resistors and rectifiers, R2...R4, X1 X2 to be tripped only in response to + impulses from V3 and V4 simultaneously. At each actuation V5 feeds an impulse into the "add" lead of the counter V7. The differentiated pulses from C1, R1 are also applied to the right-hand grid of a flip-flop pair V6, the left-hand grid of which receives pulses from V4. V6 is triggered only when a negative pulse from C1, R1 occurs when V2 is illuminated, i.e. when the shaft is moving counter-clockwise, and the resulting pulse is fed to the "subtract" lead of counter V7.
Patent GB-229780-A (GB)
Title: Improvements relating to governors or speed regulating devices adapted to be used with internal combustion engines
IPC: F02D9/02
Filed: 1923-12-04
Abstract: 229,780. Quasi-Arc Co., Ltd., and Strohmenger, A. P. Dec. 4, 1923. Dynamos, regulat ing.-In an electric governor for control ling the speed of an engine driving a dynamo-electric generator in which the load is liable to fluctuate, such as a dynamo used in are welding, the armature a is driven at a speed proportional tc the speed of the engine, and the stator d carrying the field windings is capable of limited movement as the torque varies, to adjust the engine throttle f, the movement being constrained by a spring dashpot l. By retaining the field current constant, the torque on the stator will vary with the engine speed, which will therefore be kept constant. To adjust the governor to operate at different speeds, a rheostat may be included in the field or armature circuit. By connecting the field winding to the dynamo supplying welding current, and keeping the iron below saturation, the field may be made to vary as the voltage, i.e. inverselv as the current, whereby the governor will anticipate a drop in engine speed as the load is put on. By arranging the field winding so that saturation is reached intermediately, the governor will act to increase the speed of the engine until a definite output is attained and will thereafter maintain it constant. Alternatively the field member d may be a permanent magnet or excited by a current from a separate source, such excitation being opposed by series current from the generator. The action of the governor may be modified by the action of a solenoid p, q in circuit with the secondary of a transformer r, the primary of which carries the welding current. In a modification, the armature may be stationary and the field member constitute the rotary element.
Patent GB-306064-A (GB)
Title: Improvements in or relating to pleating machines
IPC: D06J1/06
Filed: 1927-11-14
Abstract: 306,064. Hartman, I., and Creffield T. R. Nov. 14, 1927. Pleating.-In a pleating-machine of the type in which the material to be pleated is gathered by reciprocating knives into the nip betweer rollers, which set the pleat, the " pitch " of the pleats is controlled by an adjustable lost motion pin and slot connection in the dr'ive. As shown. the pleat-setting roll 2 is carried by a bracket 4 mounted on eccentric 5, adjustable by hand-wheels 7, so that one or both sides of the roll may be adjusted to or from the roll 1. This adjustment enables, for example, a garment with a hem at one edge to be appropriately dealt with. A felt band 9 passes around the roll 2, and around a roller 12 supported by links 13, 14 from a shaft 15. Links 19 are attached to the links 14 and to the bracket 4 supporting the roll 2. Strips 10 on the felt band engage recesses in the roll 2 and roller 12, and maintain the position of the band. The pressure of the roll 2 is adjusted by a lever carried on the shaft 15 and having a slidable weight on it. The pleating knives 20, 21 are pressed together by springs, and are respectively mounted on carriers 22, 23, the carrier 23 being mounted on the carrier 22 which is itself mounted on a slidable block 24. A continuously-rotating shaft 33 is provided with cams 32, 62, the former operating the carrier 22 through linkage 30, 29, 26 and the latter operating a lever 60 provided with a beak 59 capable of engaging a cup-shaped projection 58 on a link 39 connected to a crank 40'. Pins 69 are arranged one on each side of a rod 66 attached to a hand-lever 63 pivoted at 64, the handle being moved to its upper position for down " pleats and to its lower position for up " pleats. The pitch of the pleats is determined by the feed given by the rolls 1, 2. which are moved through the medium of eccentric 56 which oscillates an arm 54 pivoted to a slotted link 84. A pin 82 on a plate 81 carrying pawls 80 extends into the slot in the link 84, and. as the arm 54 oscillates, the lefthand wall of the slot moves the pin 82, plate 81, and pawls 80 to rotate a ratchet wheel 79 fast on the spindle. of the roll 1. The position of the pin 82 is adjusted in its slot by a knurled handwheel 89, eccentrically mounted pin 88, slotted link 87, and a pin 85, which is also on the plate 81. A pattern wheel is provided with a series of pins 45 capable in one position of rocking a lever to move a roller out of the path of the link 39, allowing a spring 39<1> to move the projection 58 into the path of the beak 59. Box pleats may be formed by moving every alternate pin to operative position. A second set of pins 107 is mounted on the pattern wheel and, in the operative position, these pins rock a lever 104 to release a spring-pressed bell crank from a hook 103 and allow a housing 96 to be rotated one revolution by a dog on the constantly-rotating shaft 33 and transmits motion to plate 91 and rolls to draw in a length of unpleated material. Specification 305,689 is referred to.
Patent GB-607308-A (GB)
Title: Driving belts for grooved pulleys
IPC: F16G5/18
Filed: 1945-11-15
Abstract: 607,308. Driving-belts. MATHIEU, P. J. Nov. 15, 1945, Nos. 30608, 30609 and 30610. Convention dates, April 6, June 14, and Aug. 8. [Class 80 (i)] A polygonal or circular section rubber or like belt in which the outer surface is rendered discontinuous by transverse grooves 3, has an inner metallic core of wire or chain and has its fastening means arranged to allow assembly with a slight initial twist to promote even wear of the belt surface.
Patent GB-710067-A (GB)
Title: Improvements relating to anti-dazzle device
IPC: G02C7/16
Filed: 1952-12-03
Abstract: 710,067. Goggles. MARCHAL, F. Dec. 3, 1952 [Dec. 21, 1951; Jan. 12. 1952; Nov. 15, 1952], No. 30653/52. Class 97(1) An anti-dazzle device comprises screens carried on a spectacle frame and arranged several centimetres in front of the eyes, perpendicular to the sight lines symmetrically to left and right thereof, with their lower edges slightly above the horizontal plane of vision. A space may be left between the screens in front of each eye. Four screens in all may be used or, as shown, a common central screen 9 may be disposed between the outer screens 8 leaving spaces 11 tapered or stepped to be wider at the bottom. The lower screen edges may also be stepped at 12, 13, the projecting portions 10 being less absorbent than the remainder. The screens are secured by screws 15 and located by dowels 16 and are exchangeable for others to suit the wearer's interocular separation.
Patent GB-458288-A (GB)
Title: Improvements in means for hermetically sealing tins and similar containers
IPC: B65D55/08
Filed: 1935-11-06
Abstract: 458,288. Tins &c. HAMPSHIRE & CO., Ltd., F. W., and MOSELEY, E. J., Sinfin Lane, Derby. Nov. 6, 1935, No. 30680. [Classes 66 and 125 (iii)] The inner or outer, or both surfaces of the band b sealing the joint between the lid and body portion of a tin, &c., are coated with nitro-cellulose varnish. The band, which may be provided with a tearing wire, &c., may be applied to a tin having an externally disposed elastic locking ring c adapted to be engaged by the rim a2 of the lid. Specification 13004/99, [Class 66], is referred to.
Patent GB-471231-A (GB)
Title: Process for the production of water-proof fabrics permeable to air
Filed: 1936-11-10
Abstract: 471,231. Coated fabrics. SCHWARTZ, F. F., and CHAVANNES, M. A. Nov. 10, 1936, No. 30688. Convention date, Nov. 15, 1935. [Class 140] Air-permeable waterproof textiles are made by applying to a woven or knitted textile material a water-insoluble plastic or elastic substance, e.g. rubber, wax, or synthetic resin, in amount insufficient to close the interstices and subjecting the coated fabric to mechanical pressure, and if desired to heat, so as to reduce the size of the interstices to a point at which the passage of water therethrough is prevented. The fabric may be coated by immersion, spraying or painting. The fabric or the threads from which it is made may be impregnated before coating. The water-insoluble material may be applied in successive relatively thin layers with intermediate drying. In the example a woven cotton fabric having interstices of 0À2 to 0À1 sq. mm. in area is immersed in rubber latex containing vulcanizing agents, passed through squeeze rolls, dried and hotcalendered twice or thrice at 150‹ C. under a pressure of 5 to 30 kgs. per sq. cm. Vulcanization may be completed in an autoclave. The Specification as open to inspection under Sect. 91 comprises also reducing the size of the interstices by successive coatings without the use of pressure. This subject-matter does not appear in the Specification as accepted.
Patent GB-601138-A (GB)
Title: Improvements in or relating to electric switches and switchgear
IPC: H01H19/64
Filed: 1945-11-16
Abstract: 601,138. Bolted joints. BROOKHIRST SWITCHGEAR, Ltd., and MORREY, C. Nov. 16, 1945, No. 30708. [Class 83 (iv)] [Also in Groups XXV and XXXVII] Adjacent electric switch units are connected together by screws 36, the heads 38 of which may be slotted and are internally threaded to receive similar screws. Specification 601,139, [Group XXXVII], is referred to.
Patent GB-537781-A (GB)
Title: Improvements in and relating to snap fasteners
IPC: F16B5/12
Filed: 1939-11-28
Abstract: 537,781. Seals. UNITED-CARR FASTENER CORPORATION. Nov. 28, 1939, No. 30966. Convention date, Jan. 13. [Class 146 (ii)] A snap fastener intended to be releasable only by destruction, and shown as applied tc an admission tab 1 to be secured in the button-hole of a dance-hall patron and for like uses comprises a socket member 4 of frustroconical form with a preferably integral dome cover 5 having prongs 6 forced through one limb of the tab 1 and clinched, and a stud comprising a base 7 with attachment prongs 9, the stud shank having a pair of spring arms 8 of arched cross-section and with projections 10 near their free ends presenting socket-engaging shoulders towards the base 7. In fastened position the opposed edges of the arms remain in contact to give mutual support either at their free ends or, as in Fig. 14, at an intermediate point 15. The shank is passed through an aperture in the other limb of tab 1, the prongs 9 piercing the material of the tab and then being clinched. The length of the stud shank is chosen to suit requirements. In Fig. 2 the length is such that the space between the tab limbs is filled by the garment material to prevent tampering, but an application to the ends of a band to be secured round an article is described in which the shank is short so that, when the stud is snapped into the socket the overlapping ends of the band are in contact.