baber/WOPTO huggingface dataset:
Patent GB-691774-A (GB)
Title: Improvements in or relating to variable speed driving mechanisms for talking machines
IPC: G11B19/265
Filed: 1951-10-23
Abstract: 691,774. Driving sound reproducing machines. PALUARD SOC. ANON. Oct. 23 1951 [Aug. 23, 1951 No. 24689/51. Class 40 (ii) [Also in Group XXIV] Variable-speed friction driving mechanism for gramophones comprises an electric motor 1 on the driving spindle of which is a generally conical-shaped friction member 2 with a straight or curved generating line, shown as two truncated cone portions 3, 4, engaging an idler disc 5, whose rim is covered with a material having a high coefficient of friction, e.g. rubber, engaging in turn the base of a turntable 13, the idler disc being mounted in pivoted levers 6, 8 on a' control spindle 9 and being urged into engagement with the turntable by springs 11, 12. The control spindle 9 is formed integrally with a second arm 10 and is urged to the right by a spring 26. Change of speed is produced by rotating a handle 15 and shaft 16 connected rotatably but axially slidably to a cam 23 engaging the end of the spindle 9, which may thereby be urged axially against the spring 26 to move the idler disc 5 radially inwards across the base of the turntable 13. Means are provided for disengaging the disc 5 from the turntable during change of speed, to prevent its rim being damaged, these means comprising a stop 34, secured to the shaft 15, which engages with the second arm 10 of the control spindle to rotate the latter when the handle 15 is pressed downwards against the action of a spring 35,, the idler disc then being withdrawn from the driving member 2 and turntable 13 by the springs 11, 12. Washers 27, 28, 31 and a spring 32 act as friction locking means to hold the spindle 16 in position for a chosen speed. A pin 41 passes through the spindle 16 and lies between stops 38, 39, 41, the first two of which are of sufficiently short length for the,pin to be passed over them when the handle is fully depressed. The arrangement is such that small variations of turntable speed above and below a chosen speed can be obtained by turning the handle 15 within the degree of latitude allowed through movement of the pin 41 between two of the stops 38, 39, 40. When the gramophone is not in use, a pin 37 on a pickup arm 36 engages with the handle 15 to depress the shaft 16 and stop 34 and thus withdraw the idler disc 5 from the turntable 13. As modifications, springs 11, 12 may be replaced by a single spring, the friction member 2 may be adjustable on the electric motor shaft, modified cam means may replace the cam 32, and the friction member 2 may be placed between the idler disc 5 and the spindle 9. The device may also be actuated by automatic record-changing mechanism.
Patent GB-478447-A (GB)
Title: Improvements in or relating to communication systems
IPC: H04L25/49
Filed: 1936-09-12
Abstract: 478,447. Type-printing telegraphy. STEVENS, A. H. (International Business Machines Corporation) Sept. 12, 1936, No. 24935. [Class 40 (iii)] In a system using transmitting and receiving distributers and in which each character is represented by a single impulse, the impulses are differentiated with respect to time and also polarity so that the number of segments on the distributers is halved. The transmitting distributer 50 makes at each contact and over normally closed contacts 32a controlled by a pair of keys such as A, N, charging circuits for the corresponding pair of condensers 38 connected to opposite poles of battery 40. Operation of a key shortcircuits the corresponding condenser either directly as shown or by means of key-controlled lever and cam mechanism such as that described in Specification 438,464, [Group XVI], so that when the distributer next makes contact the condenser is charged positively or negatively depending on its connection to the battery. The charging impulse is transmitted over transformer 46 and a line or wireless channel to the receiver comprising a pair of normally quiescent valves 62, 63 operated respectively by negative and positive impulses. Condenser discharges or battery directly controlled by the keys may alternatively be used for impulse transmission. The outputs of the valves are connected over amplifiers to printing magnets 18 in two sets connected in pairs to contacts of the receiving distributer 51 which is maintained in synchronism with the transmitting distributer in the manner described in Specification 442,596, a negative synchronizing impulse being transmitted over contact 20. The type-levers may be operated as described in Specification 438,464.
Patent GB-437399-A (GB)
Title: Process for reclaiming vulcanised rubber
IPC: C08J11/10
Filed: 1934-08-30
Abstract: Vulcanized rubber is reclaimed by disintegrating it and then grinding it in the presence of rubber latex containing between 1,5 and 5 per cent of alkali.  For example, 10 to 20 parts of 75 per cent latex may be made alkaline and added to 90 to 80 parts of scrap.  The grinding of the mass may take place in high friction rollers run at a temperature of 60 to 80 DEG  C., or in a mixing trough in which the blades press the mixture strongly against the walls.  3 per cent of coconut or other vegetable oil may be added during the grinding.  The water content of the mixture may be removed by the heating of the grinding rollers, or by drying of the treated mixture in thin layers. Specification 384,620 is referred to.
Patent GB-1079628-A (GB)
Title: Fried or partially fried potato products
IPC: A23L19/18
Filed: 1966-06-06
Abstract: In a process for preparing fried potato products wherein whole potato pieces (slices, straight or crinkled strips, or dices) are blanched and then fried in deep fat, the potato pieces are contacted prior to frying with an aqueous solution of an edible, film-forming, synthetic or chemically-modified natural hydrocolloid to form a thin coating of the hydrocolloid on the potato surfaces.  The term "synthetic hydrocolloid" refers to hydrocolloids prepared by partial hydrolysis of natural cellulose and subsequent chemical modification by etherification, carboxymethylation or similar reaction.  The term "chemically modified natural hydrocolloid refers to hydrocolloids prepared by chemical modification of a natural carbohydrate polymer. Preferred hydrocolloids are alkyl cellulose ethers which form a thermally reversible gel in aqueous solution, as exemplified by methylcellulose, ethylcellulose, hydroxypropyl-cellulose, hydroxypropyl-methylcellulose, hydroxyethylcellulose, carboxymethyl cellulose, carboxymethyl ethyl cellulose, carboxymethyl hydroxyethyl cellulose and their water-soluble salts e.g. sodium carboxymethylcellulose.  Hydroxypropyl alginates and hydroxypropyl starch may also be employed.  The potato pieces are typically treated for 0.1-5 minutes as by dipping, spraying or transference through a trough or flume, with an aqueous solution of the hydrocolloid containing added sugar, at a temperature of between 50 DEG  and 95 DEG C.  The hydrocolloid should have a thermal gel point greater than 50 DEG C. and an operational viscosity in the aqueous solution of between 40 and 80 c.p.s.  The procedure is described in detail in the Examples.  Mention is made of the treatment of potatoes with (i) chelating agents to remove or inactivate trace amounts of undesirable heavy metal ions, particularly iron and copper, (ii) a sugar such as dextrose or glucose to provide a richer colour, and (iii) calcium lactate as a stiffening agent to improve the physical appearance and plate life.
Patent GB-534573-A (GB)
Title: Improvements in and relating to insulating and dielectric compositions
IPC: H01B3/18
Filed: 1939-09-01
Abstract: 534,573. Chlorinated oil preparations. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 1, 1939, No. 25076. Convention date, Sept. 3, 1938. [Class 91] [Also in Group XXXVI] A liquid di-electric and insulating composition consists of chlorinated paraffinic material containing at least 50 per cent. of chlorine, with a stable liquid chlorinated benzene. An example consists of 45-50 parts of chlorinated paraffin wax ; 25-40 parts of trichlor benzene and 15-25 parts of the 1, 2, 3, 4 isomer of tetrachlorbenzene. Use is mentioned in condensers, transformers and cables. Specifications 394776, [Group XXXVI], and 425,920 are referred to.
Patent GB-1447712-A (GB)
Title: Tool carrier arrangement
IPC: B23Q3/155
Filed: 1974-06-06
Abstract: 1447712 Stands; brackets R KNAUS 6 June 1974 [4 Feb 1974] 25078/74 Headings A4B and A4H A tool carrying arrangement comprises a tool carrier 1 having spaced smaller upper and larger lower circular plates 3, 2, each plate having either tapered holes 9 for tools with tapered shanks, such as drilling, milling and boring tools and cutter heads, or generally cylindrical stepped blind hole sockets 8' for tools with cylindrical shanks, such as twist drills and reamers, the tool carrier having a first vertical pivot 6 rotably mounted in a first bush 10 and lockable against relative rotation therein by a first friction brake. As shown, the brake comprises a spring urged pin 16 in a bore in bush 10 engaging a plate 14 rigid with pivot 6, the braking pressure being provided by tightening a screw 15 holding plate 14 to pivot 6. Bush 10 is rigid with one end of a swing arm 11, the other end rigidly carrying a second vertical bush 21 that is rotatable on a second pivot 20 fixed to a stand tube 19. The bush 21 is locked against rotation on the pivot 20 by a second friction brake comprising a brake bell 24 fixed to a disc 22 on pivot 20 by pins 25 and abutting bush 21, the braking pressure being provided by a screw 26 passing through a hole in the bell 24 and engaging a threaded hole in disc 22. The sockets 8' are provided by separate members inserted in holes 8 in plate 3 and are held therein by a disc 3'. In a modification Fig. 5 (not shown), bush 10 is flanged and is mounted on a bench.
Patent GB-1320266-A (GB)
Title: Sintering process
IPC: G21C3/62
Filed: 1971-04-19
Abstract: 1320266 Sintering process for production of uranium dioxide pellets AUSTRALIAN ATOMIC ENERGY COMMISSION 19 April 1971 [9 April 1970] 25145/71 Heading C1A Pellets of stoichiometric uranium dioxide are produced in a process which comprises sintering cold-pressed pellets of non-stoichiometric uranium dioxide having a O : U atomic ratio greater than 2 by heating the pellets in a flowing atmosphere of nitrogen containing from 5,000 to 30,000 p.p.m. of water and from 1 to 10% by volume of hydrogen at a temperature of at least 900‹ C. and thereafter allowing the pellets to cool in a cooling atmosphere containing from 1 to 5% by volume of hydrogen, the total throughout of hydrogen during sintering being not less than the theoretical amount required to reduce the non-stoichiometric uranium dioxide to stoichiometric uranium dioxide.
Patent GB-695359-A (GB)
Title: Conveyors
IPC: B65G23/00
Filed: 1949-09-30
Abstract: 695,359. Endless chain conveyers. LIEBERT & KRUMMENAUER GES. Sept. 30, 1949. [Oct. 4, 1948] No. 25214/49. Class 78 (i). An endless scraper conveyer is characterised in that the conveyer framework consists of separate preferably similar elements in each of which are guided both the conveying and return runs of the scrapers which are propelled by wire ropes, link chains, roller chains or the like, and each element or each of a plurality of groups of, preferably, an equal number of elements, is provided with a driving unit for the tractive means. As shown, the conveyer casing consists of sections 1 which have a cross-section, Fig. 2, including a raised conveying table 7, a recess 3 for the conveying run of the chain, and a compartment 5 for the return run of the chain. Pushers 8 are pivotally connected by means of certain of the chain pins 17 to the chain 4 at intervals so that they can be locked in transverse position as shown for conveying, and caused to assume a position in line with the chain on the return run, so that they are accommodated in the chamber 5. The drive consists of fluid cylinders 9 at intervals along the conveyer. The piston of each cylinder 9 reciprocates a rod 10 on which a pair of collars are mounted. Between the collars a catch 15 is slidably mounted but resiliently held between the collars by springs 11, 12. Latches 13, 14 pivoted to the catch 15 are spring urged anticlockwise to a position in which they engage the chain pins 17. Reciprocating movement of the piston thus imparts movement alternately to the conveying and return runs of the chain through one or other of the latches, the idle latch being pushed by the pins 17 out of engaging position. The supply of fluid to either end of the cylinder 9 may be controlled by a valve operated either by the pins of the chain in passing or by the piston rod approaching the end of its movement so as to produce a continuous motion upon supplying fluid to the system.
Patent GB-1359681-A (GB)
Title: Azo valeronitriles
IPC: G03F7/031
Filed: 1971-04-19
Abstract: 1359681 Phenylazo-valeronitriles KANSAI PAINT CO Ltd and WAKO PURE CHEMICAL INDUSTRIES Ltd 19 April 1971 [25 March 1970] 25272/71 Heading C2C [Also in Division C3] The invention comprises compounds of the formula wherein X is H or halogen, R 1  is H, halogen or C 1 -C 8  alkyl and R 2  is C 1 -C 4  alkoxy. They may be obtained by reacting an appropriate phenylhydrazine with a ketone of formula reacting the resulting ketazine with HCN at temperatures below 40‹ C., and oxidizing the hydrazo compound at temperatures below 20‹ C., e.g. with HBr and Br 2  or HCl and Cl 2 . Examples are given for the production of the compounds. They are useful as photosensitizers for photopoly merization.
Patent GB-294797-A (GB)
Title: An improved combustion product power plant
Filed: 1927-09-26
Abstract: 294,797. Dunlop, C. H., and Fox, F. Sept. 26, 1927. Combustion-product plant. - In a plant comprising a combustion chamber 3 lined with refractory material 6 and an engine 8 driving an air compressor 13, the compressed air passing to the chamber 3 through the tubes of a heat exchanger 2 heated by exhaust gases from the engine, the gases from the chamber 3 are mixed with a regulated supply of cool air before admission to the engine cylinder. As shown, the compressor 13 supplies a reservoir 1 connected to the heat exchanger and the combustion chamber by pipes 17, 18 provided with valves 19, 20. The combustion chamber is supplied with liquid fuel under pressure by a reservoir 4 connected to the compressedair pipe. The engine 8 has a slide valve 11 actuated by an eccentric 12 on the engine shaft 10.
Patent GB-407082-A (GB)
Title: Improvements in apparatus for grinding ore and the like
IPC: B02C19/00
Filed: 1932-09-12
Abstract: 407,082. Disc and like mills. KEET, T. W., 42, Norfolk House, Joubert Street, Johannesburg, South Africa. Sept. 12, 1932, No. 25400. [Class 59.] Apparatus for grinding ore comprises an upper container forming an open-topped hopper, a rotatable lower container forming a continuation of the upper and baffle means in the lower end of the upper container to obstruct rotation of the ore whilst permitting free gravitational movement of the ore through it and into the lower container. As shown, ore is fed to an open-ended, stationary, cylindrical casing 2 and fills a rotary cylindrical container 6. A diametrical web 15 in the cylinder 2 prevents rotational movement of the ore therein and a similar web 15 in the container 6 ensures the ore therein rotating with the container when driven by the pulley 8. The ore is mutually abraded and the ground material is discharged centrifugally through a circumferential slot 10 formed by two wear-resisting rings 11, the width of the slot being adjusted by the movement of screws 14x which raise or lower the cylinder 2 relatively to the container 6.
Patent GB-832154-A (GB)
Title: Improvements in or relating to commutators
IPC: H01R39/04
Filed: 1958-08-08
Abstract: 832,154. Commutators for dynamo-electric machines. BOSCH G.m.b.H., R. Aug. 8, 1958 [Aug. 9, 1957], No. 25474/58. Class 35. The segments 11 of a long moulded commutator are secured by pairs of claws 14, 15; 16, 17; and 18, 19 gouged in succession out of steps 23, 24, 25 on the inner face of the segments. Saw-cuts 35, 36, 37 piercing bridges 22 between the segments allow escape of air during moulding, these bridges being turned off after moulding in the usual way.
Patent GB-297320-A (GB)
Title: A roller arrangement for conveying magnetisable articles
IPC: B21B39/00
Filed: 1928-09-06
Abstract: 297,320. Schloemann Akt.-Ges., (Assignees of McKee, W.). Sept. 17, 1927, [Convention date]. Roller-way conveyers.-In a conveyer for magnetizable articles each driving roller comprises a shell 10 of non-magnetic material, e.g. manganese steel, to which the rotor 13 of an. electric driving motor is fixed and which contains a stationary magnet 3. The stator 7 is connected rigidly to the non-rotatable shaft 1 and receives current through the connection 8 and bore 9. The magnet 3 is mounted in a box-like part 2 of the shaft and its winding 4 is supplied with current through the connection 5 and bore 6. The shell is journaled on the shaft by means of bearings 11, 12.
Patent GB-1045734-A (GB)
Title: Improvements in or relating to apparatus for releasing riveted connections
Inventor: LARNER WILLIAM
IPC: B25B31/00
Filed: 1962-07-04
Abstract: 1,045,734. Separating riveted Joints. J. V. BAILEY, G. C. FORTIN, and W. LARNER. July 4, 1963 [July 4, 1962], No. 25665/62. Heading B3W. [Also in Division B4] A rivet extractor comprises a punch 16 guided by a bush 22 and having an operative end 21 adapted to engage the head of a rivet, the punch being loaded by a spring in order that a plate 24 may strip the head of the rivet from the end 21. The punch 16 is screwed into a plunger 14, 17, the latter being slidable in a body portion 18. The stripper plate 24 is screwed to the body and a rubber cushioning pad 25 secured to the plate. A handle 11, 12 is attached to the body. In the modification shown in Fig. 11, the punch 16 is secured to the plunger 8 by means of a tapered end 9, the plunger being provided with slots to accommodate a drift for removing the punch. The plunger is guided by means of a ball bearing 37, 38 and the end 10 of the punch is slidable in a nylon bush. A rubber cover 47 surrounds a nose cap 39 which serves to strip the rivet head from the punch.
Patent GB-736659-A (GB)
Title: Improvements in and relating to electronic control apparatus
IPC: B23K11/26
Filed: 1953-09-18
Abstract: 736,659. Control systems for resistance welding. GENERAL ELECTRIC CO. Sept. 18, 1953 [Sept. 20, 1952], No. 25858/53. Class 38 (4). In a control system for resistance welding ignitrons 6, 7, including means for automatically adjusting a phase shift circuit 32 controlling the firing of the ignitrons so as to effect a gradual rise of welding current during an initial period of the weld time and a gradual reduction of current during a final period of the weld time, and wherein one arm of the phase shift circuit includes the primary winding of a transformer 40 having a secondary winding 49 which is variably loaded (to effect the desired phase shifts) by hard valves 47, 48, the control voltage for these valves during the initial period of the weld is obtained from a condenser 57 having a discharge circuit 58, 59 which times the initial period and determines the rate of current growth, the condenser being changed during non-welding periods over a controlled rectifier 60, which, however, is blocked to terminate charging as soon as welding is initiated, by a control voltage obtained from the primary circuit of the welding transformer over a transformer 77 and rectifier 78. The condenser voltage is applied to the valves 47, 48 over a potentiometer 86, 87 fed through a switch 90 and a rectifier 89 in series. The control voltage obtained from the primary circuit of the welding transformer when welding commences also blocks a previously conducting controlled rectifier 123 over which condensers 117, 118 have been charged in opposite senses through a transformer 112 and diodes 115, 116. Condenser 117 initially blocks a further controlled rectifier 101, but, with the termination of charging when rectifier 123 blocks, the larger condenser 118 gradually discharges, over timing resistors 121, 122, into condenser 117 and reverses the polarity of it, thereby causing rectifier 101 to conduct and effect gradual charging of a condenser 92 over resistors 102, 103. The condenser voltage is applied over switch 94 and diode 95 to the control circuit of valves 47, 48 and so initiates a progressive reduction of welding current to terminate the weld. Specification 736,661 is referred to.
Patent GB-337513-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/00
Filed: 1929-08-27
Abstract: 337,513. Siemens Bros. & Co., Ltd., Christian, D. A., and Patterson, W. G. Aug. 27, 1929. Automatic exchange systems; metering.-In an arrangement for preventing metering and transferring the control of release in the case of a call to a manual operator, the holding of the connection is effected by the answering supervisory relay Y which for ordinary calls is energized over the called loop, coil RC and contacts of the line relay A but for calls to an operator is energized over the a-wire only from battery at the operator's position. Metering of ordinary calls is effected during release. The arrangement permits ordinary calls to be held from a point ahead for checking or testing purposes. Call to ordinary subscriber; metering. When the selector shown is seized, relays A, VA, VB, D, operate and the vertical and rotary movements are effected in the usual manner. When the called subscriber answers, relay Y operates over the loop and coil RC and energizes relays LM, YA. When the calling subscriber hangs up, relay Y releases and completes the metering circuit over the c-wire. After an interval the relapse of relays VA, VB restores the selector to normal. Call to operator; prevention of metering. Relay LA operates over coil RC to light lamp CL and operate relays HY, HZ. When the operator plugs in, relay CO energizes, removing a short circuit from relay CP which also operates. Relay Y energizes in series with relay BB and completes a holding circuit for relay VB. When the calling party hangs up, relays A, VA, LM release, opening the metering circuit but relays Y, VB remain operated until the operator takes down. If the operator releases first, relay CO falls back but relay Y remains held by relays CP, HZ, and relay LA re-operates. When the calling party also releases, relays LM, VA release but metering is prevented owing to the holding of relay Y for an interval determined by the relapse of relays HY, HZ, the duration of which is greater than that of relays LM, VA. Preventing metering of interrupted calls. If a call is interrupted in favour of a toll call, the toll-offering final selector may be arranged to apply holding potential over the a-wire to relay Y for a sufficient time to prevent metering.
Patent GB-1425691-A (GB)
Title: Mounting for a rotor
IPC: B04B9/12
Filed: 1974-06-12
Abstract: 1425691 Mounting and Damping centrifuges DORNIER GmbH 12 June 1974 [21 July 1973] 26038/74 Heading B2P [Also in Division F2] The bearing 2, 33 of a centrifuge 3 has a damper comprising fixed and movable cylindrical damper parts e.g. 11, 21 one within another, the or each movable part being radially movable relative to a fixed part, at least one damper part 21 being surrounded by liquid and having a plurality of apertures 5 arranged over it to form a sieve, the apertures providing a flow path for the liquid. The apertures 5 may have circular or starshaped cross-section, and each may have a varying cross-section to constitute a nozzle. The sieve-like member may be constituted by a lattice sieve. As shown, the sieve-like member is a movable part between two fixed parts 1, 11. In Figs. 3 not shown there are two fixed parts and two movable parts and the sieve is formed on the fixed part between the movable parts. In Fig. 3a not shown, one of these movable parts is also formed as a sieve. In Fig. 5 not shown, four of these dampers (each having different damping characteristics) are combined in one housing to damp a single bearing.