baber/WOPTO huggingface dataset:
Patent GB-324169-A (GB)
Title: Improvements in or relating to induction disc motors
IPC: H02K17/08
Filed: 1928-11-24
Abstract: 324,169. Payne, E. M., Johnson, A. H., and Gramophone Co., Ltd. Nov. 24, 1928. Alternating-current induction machines.-With the object of producing a more even torque in an induction motor of the type in which the secondary member is of disc or equivalent form, a condenser is connected in series with the non- reactive winding and the capacity of the condenser is such that the reactance of the winding is substantially neutralized. As applied to the drive of a talking machine turntable 2, the spindle 1 carries a conducting disc 3 which rotates between the opposed poles of magnetic members 4, 6. The winding 10 on the core 6 has a higher inductance than the winding 5 on the core 4, but in order that the phase difference between the currents in the two coils shall be 90‹ when the coils are connected in parallel to an alternating current source, a condenser of appropriate value is connected in series with the winding 5. An example is referred to in which two elements of the type shown are used to drive the disc 3 and a condenser of two microfarads capacity is connected in series with the winding 5 of each element. Vector diagrams are given to illustrate the performance of motors with and without the series condensers.
Patent GB-984000-A (GB)
Title: A protective device for a rectifier
Inventor: RADCHENKO VICTOR DANILOVICH
IPC: B60L9/04
Filed: 1962-09-12
Abstract: 984,000. Protective arrangements; rectifying; arcing preventing in switches. VSESOIUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT ZHELEZNODOROZHOVO TRANSPORTA. Sept. 12, 1962, No. 34807/62. Headings H2B, H2F and H2K. An arrangement for protecting a semiconductor rectifier, comprises an electromagnetic circuit-breaker I, operated by a protective circuit IV including a spark-gap relay VII under the control of a device III responsive to rectifier breakdown and a device II or XIII responsive to overloading, means VIII being provided to ensure that the circuit-breaker is not opened under load. Figs. 1 and 2 show bridge rectifier arrangements, each including two circuit breakers I and the appropriate number of protective devices. In Fig. 1, voltage regulation is effected on the primary side of a supply transformer but in Fig. 2 the secondary winding of the supply transformer is provided with onload tap changing, the taps being connected alternately to pairs of rectifiers 3a, 29. In the protective circuit IV shown in Fig. 3, impulse transformers IIa, IIb or a current transformer XIII (not shown) are connected to a monostable transistor circuit Va, and devices IIIa, IIIb, responsive to rectifier breakdown are corrected to a monostable circuit Vb. Transistor amplifier circuits VIa, VIb respond only when three signals are received simultaneously, the signals being a signal from a monostable circuit Va or Vb indicating breakdown or overloading, a signal from the device VIII indicating that the associated circuit-breaker 1 is not carrying current (i.e. that the associated rectifier A or B is in its non- conducting half-cycle) and a signal from a synchronizing network XII which is only given during the first part of the non-conducting halfcycle. When each amplifier circuit VIa, VIb responds on the appropriate half-cycle, the discharge of a capacitor 15 through the primary winding of a transformer 14 initiates ionization at the associated spark-gap relay VII so causing the discharge of capacitors 10 through the spark-gap relay and the opening winding 9 of the associated circuit-breaker 1, the circuit-breakers opening in turn during the half-cycles in which they are not carrying current. The devices III may be of the form shown at IIIb, Fig. 3, in which the light from a gas-discharge tube 25 acts on a light-sensitive resistor 26. Reference has been directed by the Comptroller to Specification 876,787.
Patent GB-393873-A (GB)
Title: Manufacture of azo-dyestuffs
IPC: C09B29/01
Filed: 1932-12-08
Abstract: Monoazo dyes suitable for dyeing cellulose esters and ethers, natural or artificial resins, lacquers or varnishes, are made by coupling an aromatic diazo-compound which contains no hydroxyl group in o-position to the diazo group with a 1-amino-3-oxybenzene having free 4- and 6-positions so that coupling occurs in 4-position and acylating the dyestuffs thus obtained. Greenish-yellow to orange non-phototropic shades are obtained. The dyestuffs may be made into pastes or dry preparations with suitable dispersing agents.  Suitable acylating agents are formic acid, acetic anhydride or acetylchloride, propionic anhydride, ethyl- or methylester of chlorformic acid, or a cyanate.  In examples (1) and (2) aniline or p-anisidine --> (neutral) m-aminophenol is treated with acetic anhydride, (3) the dyestuff in (2) is dissolved in finished nitro-cellulose lacquer, (4) acetate silk yarn is dyed with a dispersion of the dyestuff of (2).
Patent GB-1092497-A (GB)
Title: New hexahydropyrimidone derivatives and a method of finishing textile material
Inventor: PERTERSEN HARRO
IPC: D06M15/423
Filed: 1966-08-04
Abstract: Novel compounds of the formula <FORM:1092497/C2/1> wherein R1, R2 and R5 denote H, C1- 8 alkyl, allyl or C1- 8 hydroxyalkyl or alkoxyalkyl in which the hydroxyl or alkoxy group is separated from the oxygen atom Dy at least 2 carbon atoms and R3, R4 and R6 denote H or C1- 5 alkyl are produced by reacting a 4-hydroxy or alkoxy hexahydropyrimidone-2 with twice the molar amount of formaldehyde in an aqueous medium at a pH of above 9 and a temperature of 0 to 100 DEG  C., and optionally reacting the product with a monoalcohol, a dialcohol or a monoalkylether of the latter, in the presence of an acid catalyst with or without a solvent or diluent.  Preferred compounds have R1, R2 and R6 as H, and R3 and R4 as methyl and R5 as H or CH3.  The products may be used for treating textiles.ALSO:A finishing agent for textile material which consists of or contains natural or regenerated cellulose comprises a compound of the formula <FORM:1092497/D1-D2/1> wherein R1, R2 and R5 denote H, C1-8 alkyl, allyl, or C1-8 hydroxyalkyl or alkoxyalkyl in which the hydroxy or alkoxy group is separated from the oxygen atom by at least two carbon atoms, and R2, R4 and R6 denote H or C1-5 alkyl.  The finishing agent is preferably used in aqueous solution together with an acid catalyst, and may be reacted with the textile material to form acetal bonds when wet or when wholly or partly dried, either immediately or after storage in the impregnated but unreacted condition.  The finishing agent may be used together with known substances, e.g. dispersions of polymers such as a copolymer of n-butyl acrylate or an ethyloxylated polyamide.  Exemplified acid catalysts are oxalic, maleic, monochloroacetic and hydrochloric acids, used together with MgCl2, NH4Cl or Zr(NO3)2.
Patent GB-991464-A (GB)
Title: Cut-off device
IPC: B29C65/22
Filed: 1961-09-28
Abstract: 991,464. Cutting apparatus. PROCTER & GAMBLE Ltd. Sept. 28, 1961 [Sept. 29, 1960], No. 34982/61. Heading B4B. [Also in Division B8] Apparatus for severing from one another sealed packets of thermoplastic film comprises a rotatable drum 1 having pockets 2 separated by lands 3 provided with recesses 7, a film 6 having been sealed to a film 4 on the lands to form packets containing the desired material. The film 4 is drawn into the pockets by vacuum. The packets are severed by means of heated wires 9 supported by refractory wedges 10 carried by the arms of a rotatable member 8 driven synchronously with the drum 1. A blast of cooling air or other gas may be directed towards the line of severance through one or more nozzles 12. Specification 991,465 is referred to.
Patent GB-953313-A (GB)
Title: Improvements in and relating to vehicles having impact-absorbing devices
IPC: B60R21/02
Filed: 1961-02-08
Abstract: 953,313. Impact absorbing devices in vehicles. A. F. KENT. Feb. 1, 1962 [Feb. 8, 1961], No. 35019/63. Divided out of 949,853. Heading B7B. A cushion m attached to a vehicle seat is inflated by bellows n to prevent a rear seat passenger sliding forward during a collision. The cushion may have a recess forming a shelf (dotted line).
Patent GB-747590-A (GB)
Title: Improvements in or relating to de-aerating paper pulp
IPC: D21D5/26
Filed: 1953-12-16
Abstract: 747,590. De-aerating paper pulp. ROTAREAED CORPORATION. Dec. 16, 1953 [May 21, 1953], No. 35073/53. Class 96. Paper pulp is de-aerated by spraying it at 26 into a low-pressure tank 11 under the action of a pump 21, the tank 11 being exhausted of air and vapour by a high-pressure steam-jet injector 14 in a pipe 42 with a venturi constriction, the discharge from which being directed downwardly into an enclosure 15 exhausted at 16 by a pump 17, pipes 56, 57 spraying paper pulp drawn from the supply line 22 or white water, as coolant for condensing the vapour and steam, the liquid level being maintained constant with the aid of a sight-glass 45, and a manually-operated valve 47 in a pipe-line connected to spray-pipes 48 in the tank 11, the pressure for spray-formation being due to the steam jet &c. 14. The level in the tank 11 is also maintained constant, a pump 33 supplying pulp therefrom to the flow-box 36 of a papermaking machine. The sprays 26 are deflected by the walls of the tank 11 or by a baffle 27. In a modification, a steam injector is also used in the exhaust 16 from the enclosure 15. Specification 677,483 is referred to.
Patent GB-1160281-A (GB)
Title: Improvements in and relating to an Apparatus for the Automatic Control of the Feed of a Material Strip to a Processing Machine
IPC: B65B57/08
Filed: 1966-08-05
Abstract: 1,160,281. Feeding webs; wrapping apparatus. SCHWEIZERISCHE INDUSTRIE-GESSELLSCHAFT. 5 Aug., 1966 [6 Aug., 1965], No. 35099/66. Headings B8C and B8R. In apparatus for feeding strip material to a machine, e.g. a machine for enveloping chocolate bars 5 in aluminium foil strip 6, and wherein advancement of the strip 6 is controlled by objects, i.e. chocolate bars 5, being fed by a conveyer to the machine, means are provided for stopping the machine if the supply of foil fails or a break in the foil occurs. As shown, the foil passes from a roll 7 over guide rollers 8, 9 to a table 10 where the engagement of the foil between a continuously-rotating roller 12 and an intermittently raised-and-lowered roller 14 causes the intermittent feed of the foil. A lever 13 carrying the roller 14 is connected by a link 15 to one arm 16a of a three-armed lever 16. Another arm 16c is held by a latch 4 in the position shown if a chocolate bar 5 is not present over an opening 2 into which a sensing member 3 on the latch 4 projects. When the arm 16c is thus held, the roller 14 cannot move downwardly and no feed of the foil occurs. In this same position a roller 18 on the arm 16a supports a lever 19 so that a surface 19a on a projecting part near its upper end engages a circular recess in the end of the roller 9. The lever 19 has a slot 19b engaging a fixed pin 20, and a spring 21 tends to pull it downwardly. The third arm 16b of the lever 16 has a roller 22 engaging a cam 23 on a shaft 25 driven by a motor which also drives the roller 12 and the packaging machine. Three switches A, B, C are connected in parallel in the motor circuit and are operated respectively by lever 19, arm 16c and a cam 24 on the shaft 25. In the rest position shown, switches B, C are closed and switch A is open. If the motor is now started and latch 4 is held inoperative by the presence of a chocolate bar 5, the lever 16 turns clockwise causing the roller 14 to be lowered to effect an advance of the strip 6. The roller 18 moves away from the lever 19, which is caused to move into the chain-line position by the action of the roller 9 on the surface 19a as the roller is rotated by the strip. The lever 19 thus closes the switch A during the period both switches B, C are opened by clockwise movement of the arm 16c and cam 24 respectively. Subsequent anti-clockwise movement of the arm 16 by the cam 23 restores the parts to the original position. When the supply of foil strip is exhausted or the strip breaks, the roller 9 is not rotated and the lever 19 is not operated to close the switch A, so that at a point in the cycle all three switches are open and the motor is stopped. In a modified arrangement, the lever 19 is dispensed with, and the switch A is closed, when the roller 9 is rotated, by a relay and amplifier connected to a generator coupled to the roller 9.
Patent GB-1550782-A (GB)
Title: Rotary harrows
IPC: A01B33/08
Filed: 1977-08-22
Abstract: The rotary harrow of driven type has a plurality of rotary cultivating elements actuated by the power take-off of the driving means and each formed by a crosspiece (15) having end teeth (16-17) which sink into the ground. The teeth are each fitted with at least one radially projecting inclined fin (18) which is shaped in the form of a helix and the crosspieces are fitted with notched surfaces (20) against which the clods of earth lifted by the action of the radial fin or fins are thrown by the teeth of the adjacent crosspiece, thereby breaking up these clods. <IMAGE>
Patent GB-844966-A (GB)
Title: Binary adding circuits
IPC: G06F7/502
Filed: 1957-11-12
Abstract: 844,966. Transistor logical circuits. NATIONAL CASH REGISTER CO. Nov. 12, 1957 [Dec. 3, 1956], No. 35170/57. Class 40(6). [Also in Group XIX] An electronic binary adder (see Group XIX) comprises switching means each comprising a pair of P-N-P transistors which receive signals having voltage levels Ov and -8v to represent "1" and "0" respectively. In exclusive "or" circuit 39, each of the input signals is applied to the emitter of one transistor and the base of the other, whereby if the signals are different one of the transistors conducts and causes a "1" output to be produced; thus e.g. if A1 = 1, Bi = 0, transistor 42 conducts, since it receives a low voltage at the base and a relatively high voltage at the emitter, and the current flowing to the collector raises the potential of output junction 55. Circuit 40, which receives one input S1 = A 1 <SP>1</SP>B 1  + A 1 B 1 <SP>1</SP> from 39 and the other input C1 from bistable carry flip-flop C1, is similar and produces sum-representing output signals on line 85. In the carry switching circuit 41, transistor 90 receives signals Bi at its emitter and the output from 39 at its base whereby it conducts for S 1 <SP>1</SP>B 1  = 1; similarly, transistor 89 receives the output from 39 at its emitter and the complementary carry signals C 1 <SP>1</SP> from flip-flop C 1  at its base whereby it conducts for S 1 C 1  = 1; diode 110 presents back current flow through transistor 89 when transistor 90 conducts. It can be shown that the logical sum of the two outputs obtained on line 97 represents the carry signals C o ; these signals are applied directly and via transistor inverter 100 to clock-pulse-controlled gates 98, 99 respectively at opposite trigger inputs of the carry flip-flop C1.
Patent GB-487504-A (GB)
Title: Improvements relating to auxiliary gear boxes for motor road vehicles
IPC: F16H63/30
Filed: 1936-12-29
Abstract: 487,504. Variable - speed gearing. ALBION MOTORS, Ltd., and KEMP, J. A. Dec. 29, 1936, No. 35587. [Class 80 (ii)] In motor-vehicle drives employing a normal gear box in series with an auxiliary box giving only a direct and an overdrive speed, the shift-rod 2 of the auxiliary box has a groove 5 coacting with a plunger 4 sliding in the frame and coacting with a groove 6 in a rod 3 connected to a shaft-rod of the main gear box. The parts are so arranged that in the position shown, in which the rod 3 is out of high gear position, the rod 2 is locked in direct drive positions and cannot be moved to the left to overdrive position until the rod 3 has been brought to high-gear positions with the notch 6 registering with the plunger 4. Similarly when the rod 2 is in overdrive position the rod 3 cannot be moved out of high-gear position.
Patent GB-435541-A (GB)
Title: Improvements relating to concrete and like blocks
IPC: B28B11/14
Filed: 1933-12-18
Abstract: 435,541. Faced concrete blocks. KAY, C., 6, Norton Lees Lane, Woodseats, Sheffield, and DUNN, A. D. S., St. Annes, Kirk-Deighton, Wetherby, Yorkshire. Dec. 18, 1933, No. 35593. [Class 87 (i)] Concrete blocks faced with coloured cement or other plastic material are formed by casting a layer f of facing material between two or more base blocks b of coarser concrete, and afterwards dividing through the layer f to produce two or more blocks faced on one or both sides. The blocks b may be precast with keys k, or the whole may be cast horizontally in alternate layers of coarse and fine material. The blocks may be further subdivided into smaller blocks by transverse cuts. The cutting tool is preferably a circular saw with a carborundum cutting surface which also polishes the facing layer.
Patent GB-334795-A (GB)
Title: Improvements in or relating to heat exchanging appliances
IPC: F28D7/16
Filed: 1929-11-23
Abstract: 334,795. Mortreux, A. Nov. 23, 1929. No Patent granted (Sealing fee not paid). Air-heating furnaces.-In an air-heater hot gases from a fire-box 10, containing oil or gas burners, follow a zig-zag path through successive rows of gilled metallic tubes 1 held between two header plates 2, 3 in an open-ended metal casing having frustum-shaped chambers 6, 9 through which air is forced by a fan 4. A cowl 14 and flue 10<a> connect the rows of tubes. The fire-box has one or more arch-shaped refractory plates 3a below the plate 3, the holes in the two plates being staggered. The plates may be lined with a conductive plate. To increase the draught air is diverted through a small pipe 16 into the chimney. This pipe and also the chimney may each have a valve.
Patent GB-990137-A (GB)
Title: Improvements in or relating to communications systems
IPC: H04B7/145
Filed: 1961-05-08
Abstract: 990,137. Signalling systems; automatic frequency control systems. H. P. HUTCHINSON, and P. R. ARENDT. May 8, 1961 [May 13, 1960], No. 36040/64. Drawings to Specification. Divided out of 990,134. Headings H3A and H4L. The subject-matter of this Specification is disclosed in Specification 990,134, but the claims relate only to the frequency control arrangements described therein for compensating for Doppler shift.
Patent GB-1445565-A (GB)
Title: Concrete articles
IPC: B28B1/52
Filed: 1972-08-02
Abstract: 1445565 Fibre-reinforced concrete CEMENT & CONCRETE ASSOCIATION 30 Oet 1973 [2 Aug 1972] 36118/72 Heading B5A [Also in Division E1] A concrete article is made by moulding in an hydraulic press a quantity of Portland cement, aggregate and water, this mixture having dispersed therein a proportion of fibres of metal, synthetic resin or glass. Portland cement is mixed by revolving blades with sand, crushed granite, and 1-2 per cent by volume of fibres such as plain or crimped steel. The mixture is used to make a manhole cover or paving slab. A suitable material is described in Specification 1,068,163.
Patent GB-315657-A (GB)
Title: Improved holder for rolls of paper, balls of twine and the like
IPC: F41A25/00
Filed: 1928-12-07
Abstract: 315,657. Goldbeck, H. L. Dec. 7, 1929. Bobbin and roll holders.-A holder for rolls of paper, balls of twine &c. comprises two separable flanged sections 2, 3 releasably connected by a latch 18 carried by a tubular stem 8 in the section 3 and having portions 17 projecting through slots in the stem and engaging the face of a keeper block 10 fixed in the section 2 and through which the stem 8 is guided. When a roll &c. is on the holder the sections 2, 3 cannot be separated, but when the roll &c. has been used up projections 24 on a ring 23 slidable in the section 2 become accessible and the spring arms 20 of the latch can be moved inside the stem by sliding the ring thereon, and the sections may then be separated; the flanged ends 4 of the holder are provided with supports 6. The stem is secured in the section 3 by a block 7 and devices 9 and the latch 18 is coiled around a pin 15 secured at the end of the stem, its ends being hooked at 22 and engaging around a stop pin 16 in the stem to limit their outward movement.
Patent GB-1147065-A (GB)
Title: Slide bar brackets for use with mine roof supports
Inventor: CLARKE EDWARD BRYAN
IPC: E21D17/03
Filed: 1965-08-24
Abstract: 1,147,065. Mine roof support brackets; hooks. COAL INDUSTRY (PATENTS) Ltd. 19 Aug., 1966 [24 Aug., 1965], No. 36301/65. Headings E1E and E2A. In a slide bar bracket for a mine roof support comprising a clamp 1 having opposed tongues 8, 11 the tongue 11 is pivotally movable into its flange-engaging position and adapted to be automatically locked therein by releasable locking means 14. The means 14 may take the form of a pivotal pawl engaging a flange 13 on the member 11 or be of somewhat modified construction for details of which the Specification should be referred to.
Patent GB-856299-A (GB)
Title: Shears for cutting billets, sheets, bars and the like
IPC: B21D43/28
Filed: 1958-11-12
Abstract: 856,299. Shearing. INDUSTRIE-WERKE KARLSRUHE A.G. Nov. 12, 1958 [Dec. 7, 1957], No. 36304/58. Class 83 (4). An ejector serving to support the severed portion of the work during shearing is tilted at the end of the cutting stroke to eject the severed portion. A bar 1 is fed by a roller conveyer to abut a fluid-pressure actuated gauging stop 17 and is then held by a clamp 3 against the frame 2 which carries a fixed blade 6. As the cut is made by the moving blade 4 which is pivotally mounted on a lever 5 the end of the bar 1 is supported by the ejector 8 journalled on a lever 7 actuated by an eccentric 22. During downward movement of the lever 7 an abutment 15 on the frame 2 tilts the ejector 8. In a modification the moving blade 4 and the support 7 for the ejector have a linear reciprocating motion. In a further modification, the abutment 15 is mounted in guides on the frame 2 and is reciprocated by a separate transmission.
Patent GB-173430-A (GB)
Title: Improvements in and relating to potato planters
IPC: A01C9/08
Filed: 1920-12-29
Abstract: 173,430. Brykowicz, J. Dec. 29, 1920. Potato-planters.-In a potatoplanting machine, the potatoes are fed from a hopper 7 by inclined plates 8 through apertures 9 into compartments 10, the apertures being provided with vertically adjustable gates 11 which are controlled by the attendant through worm gear operated by a shaft 18. The compartments 10 have pivoted bottoms 23 which are shaken by cams 24 on a shaft 26 driven from the main wheels of the machine. The potatoes are then caused to pass through openings 25 into compartments 34<1>, the openings 25 being closed at intervals by pivoted gates 34 actuated by springs and cams 35 on a shaft 36 driven from the main. wheels. Each compartment 34<1> is provided with a potato shoot 49 and potatoes are lifted singly to the opening 50 to the shoot by a vertically reciprocating cup 40 operated in timed relation to the gate 34 by a cranked shaft 41. The rear end of the main frame 5 of the machine is provided with vertical standards 52 which may be adjusted vertically by an attendant standing on a platform 20 hung at the rear of the machine. These standards carry cranked shafts 57, 58. 59, the shaft 59 carrying devices 65 which are adapted to dig into the soil and scoop out holes for the reception of potatoes fed down the shoots 49, the shaft 58 carrying members 67 which receive the soil from the devices 65 and empty it on the potatoes after they have fallen into the holes and the shaft 57 being provided with links 66, 68 to operate the devices 65 and members 67 in timed relation with each other. The side of each device 65 closes the end of its shoot 49 while the soil is being scooped up to form the hole. The depth of hole is varied by adjusting the standards 52.