baber/WOPTO huggingface dataset:
Patent GB-1021165-A (GB)
Title: Trim for electrical switchboard housing
IPC: H05K5/03
Filed: 1964-06-29
Abstract: 1,021,165. Releasable fastenings. SQUARE D. CO. June 29, 1964 [Sept. 5, 1963], No. 26770/64. Heading E2A. [Also in Division H2] A switchboard has four front twin panels 14, 16, 17, 18 mounted on inturned flanges 24 of an open fronted box 10 by means of spring members 26 pivotally mounted at 30 to U-shaped brackets 28 spot welded to the twin panels. The panels are additionally secured together by means of screws 36 and brackets 34 welded to panels 17, 18.
Patent GB-1142670-A (GB)
Title: Improvements relating to multistage liquid ring pumps
IPC: F04C19/00
Filed: 1967-06-09
Abstract: 1,142,670. Liquid-ring pumps. I. C. JENNINGS. June 9, 1967, No. 26781/67. Heading F1C. A liquid-ring pump has a multi-stage rotor 21, Fig. 1, which may be of integral construction, and a stationary cylindrical or tapered member 51 provided with the inlet and outlet ports of each stage. On starting the pump when operating as a vacuum pump, the first stage 28 draws air through inlet pipe 56, passages 52a, 52 and port 43, and discharges the air through port 46, passages 53, 53a, check valve 59 and cavity 63, Fig. 3, to outlet pipe 71. Some of the air from the first stage passes instead through port 44 to the second stage 33 and is discharged through port 48, cavity 63 and outlet pipe 71. When the first stage pressure has fallen sufficiently the check valve closes and the two stages operate entirely in series. Sealing and cooling liquid is supplied to the first stage through pipe 81 and passage 83. Cooling liquid for gland 18 is supplied from lobe 39 through passages 79, 84. Sealing liquid is passed from lobe 40 through passages (77, 76), Fig. 4 (not shown), to interstage sealing recess 74. At low vacuum, sealing liquid forced into the space between the pump casing and the rotor end shroud 37 is vented through port 17 and pipe 85 to reservoir 82 to prevent surging, and at high vacuum the liquid is returned to the space via the pipe 85. In alternative embodiments, Fig. 6 and 9 (not shown), the pump comprises two independent pumping sections arranged about a common horizontal shaft and having a common rotor with a central transverse partition separating the pumping sections and with a set of two or three stages at each side of the partition, each set being associated with a respective central port member. A number of fluid-flow passages may be provided external of the pump casing, the two pumping sections discharging to a common outlet pipe, Figs. 7 and 9 (not shown). With the three stage sets, the third stages are brought into complete series relationship with the first two stages after closure of a second check valve. In all embodiments, the lobes of adjacent stages of the or each pumping section are displaced successively in opposite directions about the rotational axis to balance the side thrusts.
Patent GB-191792-A (GB)
Title: Manufacture of mordant dyestuffs
IPC: C09B45/16
Filed: 1921-10-10
Abstract: The dyestuffs of the parent Specification are modified by the replacement of the 4-acidylaminophenols by 2- or 3-acidylaminophenols substituted in the 4- position but having a free 2- or 6- position. According to an example diazotized picramic acid is coupled with 4-methyl-2-acetylaminophenol.  The products dye with chrome mordants olive shades of a more yellowish tint than those yielded by the dyestuffs of the parent Specification.
Patent GB-1129740-A (GB)
Title: Controlled blood dialysis system
Inventor: SERFASS EARL JAMES
IPC: A61M1/16
Filed: 1967-06-09
Abstract: 1,129,740. Blood dialysis apparatus. MILTON ROY CO. 9 June, 1967 [7 July. 1966], No. 26819/67. Heading A5R. [Also in Division B1] An automatically pre-programmed blood dialysis apparatus (see Fig. 1) comprises dialysis unit 1 to which blood may be passed from a patient by line 13a and be returned by line 13. Fresh dialyzate solution is prepared by metering concentrate from tank 3 with the correct amount of water from source 2 by proportioning pump 4, the water being heated at 5 before being mixed with the concentrate. From constant head vessel 8, the solution passes by lines 10 and 11 and 11a to dialysis unit 1 to contact the opposite side of the membranes to the blood. Spent dialyzate leaves by lines 12 and 12a, and passes to waste through valves 15 and pump 18. Before blood dialysis begins, the system is first rinsed, sterilized and cooled with water from source 2, dialyzate concentrate being shut off by valve 6, bypass line 16 being open through valve 15, and dialysis unit 1 being replaced by a shunt so that the hoses to and from the dialysis unit may be sterilized. The system is then tested, the dialysis unit 1 and blood lines to the patient connected, and the dialysis process begun. At the end of this process, the blood lines and the dialysis unit are disconnected, the shunt reconnected and the system subjected to a second rinse and sterilization. In operation, the temperature and concentration of the dialyzate, the used dialyzate pressure and the venous pressure are continuously monitored, and the waste fluid is also continuously monitored for the presence of red blood cells. A pre-programmed logic unit 27 is provided to programme the entire sequence of operations, and a visual display is provided by control unit 28, indicating when the monitored parameters are within the correct limits for the apparatus to be connected to the patient, if the apparatus is malfunctioning (in which event the patient will be automatically isolated from the dialysis unit 1), and what stage in the cycle of operations has been reached. Circuit features of the logic unit 27 and of the control unit 28, and the manner in which the sequence of operations is controlled thereby are provided in considerable detail.
Patent GB-749788-A (GB)
Title: Resinous ethers of adducts from phenol-aldehyde condensates and mono-epoxy compounds
IPC: C08G8/28
Filed: 1953-09-30
Abstract: A resinous compound having the empirical formula <FORM:0749788/IV(a)/1> in which R1 is hydrogen, cyclohexyl, butenyl, phenyl, 2-(4-hydroxyphenyl) propyl, p-tertbutyl, or methyl; R1 is hydrogen, methyl, ethyl, phenyl, -CH2OC2H5, -CH2OCH2CH=CH2, or CH2OC6H5; R2 is CH2, CH3CH, CH3CH2CH, or CH3CH2CH2CH and represents the residue of formaldehyde, acetaldehyde, propionaldehyde or butyraldehyde; R3 is methyl, ethyl, propyl, butyl, isobutyl, amyl or octyl; n is an integer within the range of 1-5 inclusive; and x is an integer within the range of 1-15 inclusive, are prepared by reacting an adduct of a phenol-aldehyde condensate and a compound containing the oxirane ring <FORM:0749788/IV(a)/2> either with an aliphatic aldehyde together with an aliphatic monohydric alcohol, or with an acetal of an aliphatic aldehyde and a monohydric alcohol.  In examples, the adduct, alcohol and acid catalyst are heated to form a solution to which paraformaldehyde or aqueous formaldehyde is added and the whole refluxed until no more water separated.  Toluene may be present as a reaction medium.  Other possible solvents mentioned are xylene, naphtha, mineral spirits, esters, ethers or alcohols. Example 1-4 employ an adduct of a phenol-formaldehyde condensate with propylene oxide, and n-butyl alcohol.  Example 5 uses ethylene oxide and iso-butyl alcohol, Example 6 styrene oxide and n-butyl alcohol, Example 7 allyl glycidyl ether and n-butyl alcohol, Example 8 phenyl glycidyl ether and iso-butyl alcohol, Example 9 reacts a phenol-formaldehyde adduct of propylene oxide with formal, methyl alcohol being split off instead of water.  Example 10 reacts an adduct of phenol-formaldehyde and propylene oxide with diethoxymethane, ethyl alcohol being split off.  In Example 11, the adduct is from p-tert.-butyl phenol-formaldehyde and ethylene oxide, the alcohol being n-butyl and in Example 12 an adduct of o-cresol-formaldehyde and propylene oxide is employed.  Suitable catalysts are sulphuric, toluene sulphonic, benzene disulphonic, phosphoric or hydrochloric acid.  The products are useful for coating compositions, either alone or mixed or reacted with other film-formers such as ureaformaldehyde, melamine - formaldehyde, oil-modified alkyd resins or natural gums.  Pigments, e.g. titanium dioxide, iron oxide, iron blues, lead or zinc chromate or organic pigments may be included.  Catalysts, e.g. octyl acid phosphate, or benzene sulphonic acid may be added or left in from the condensation to lower baking temperatures.
Patent GB-464900-A (GB)
Title: Improvements in and relating to agricultural tractors
IPC: B62D49/06
Filed: 1936-10-03
Abstract: 464,900. Implements and machines for working land; mowing machines. DUFOUR, L. Oct. 3, 1936, No. 26875. Convention date, Oct. 10, 1935. [Classes 6 (i) and 6 (iii)] [Also in Group XXXI] A tractor comprising two parts one of which includes the main frame 1, the front wheels 6, and the driver's seat, and has pivoted to it on a transverse axis the other part forming a lever with the power unit 13 carried by the front arm of the lever, is characterized by a selflocking device for rigidly connecting the two parts together in at least two positions into which the pivoted part is moved either by the weight of one of its arms or by the rearing reaction caused when the forward or reverse speed of the power unit is engaged. In the construction shown in Fig. 1 the power unit 13 is pivoted to the main frame 1 about a shaft 24 and is provided with a change-speed gear 15 controlled by a gear-lever 17. A spring loaded locking pin 28, carried by the main frame and operated by a pedal 33, is adapted to engage with either of two notches 26, 27 in a sector 25 fixed to the power unit, so as to lock the power unit to the main frame in either of the positions in Figs. 1 and 2. The rear end of the power unit is formed with a flange 20 to which may be detachably secured either (1) a beam 21, Fig. 1, carrying a towing hook 21<1> and a safety wheel 22 to prevent the tractor from rearing, (2) a plough attachment 36, Figs. 2 and 3, (3) a mowing-machine beam 44, Fig. 4, (4) a rotary cultivator, or any other suitable implement. The plough beam 39 is pivoted at 37 to the arm 36 which is formed with an abutment 38 beyond the pivot, so that if the power unit is rocked counter-clockwise about its pivot 24 from the position shown in Fig. 2 to that shown in Fig. 3, the abutment 38 lifts the plough clear of the ground. In order to raise the plough the tractor is stopped, the pin 28 is released from the notch 27 by pressure on the pedal 33, and the reverse gear is engaged. The reaction causes the power unit to rotate counter-clockwise and lift the plough until the pin 28 engages in the upper notch 26 and locks the plough in the raised position. The reaction may be increased by braking the driving wheels 19, the whole of the engine power being then used to rotate the power unit about the shaft 24. To lower the plough the pin 28 is released, the brakes are applied and forward speed is engaged. The mowing attachment shown in Fig. 4 comprises a connecting rod 45 driven by a shaft enclosed in the beam 44 and connected to the power take-off of the power unit. The power unit 13 and beam 44 oscillate freely on the pivot shaft 24, a trailing wheel 49 being provided. The locking pin 28 is completely withdrawn from contact with the sector 25, the pedal 33 being rotated until its lever 32 has passed a dead-centre position as shown, so that the spring acting on the pin 28 holds it in this retracted position. A hand-lever 48 is provided for raising the coutter bar 46 clear of the ground for travel on roads.
Patent GB-966749-A (GB)
Title: Radio telephone systems
Inventor: PANNELL WILLIAM MORGAN
IPC: H04W68/00
Filed: 1960-08-03
Abstract: 966,749. Telephone exchange systems; calling arrangements. PYE Ltd. Aug. 3, 1961 [Aug. 3, 1960], No. 26928/60. Headings H4K and H4L. In a radio telephone system consisting of a control station C and a plurality of outstations OS1, OS2, OS3, all of which are adapted for operation on each of a plurality of radio communication channels, with the system so arranged that telephonic communication can be effected between one of the outstations and the control station using one of the channels or between any two outstations using two of the channels, it is arranged at the control station that a different tone modulation frequency for each one of the outstations can be generated and transmitted on one of the communication channels when it is required to establish communication with one of the outstations. Each of the outstations is provided with an arrangement which tunes the outstation to each channel in turn and a tone receiver for receiving the particular tone modulation frequency representing that outstation and causing that outstation to respond and stay tuned to that channel for the duration of the ensuing communication. The control station may be connected into a telephone exchange so that the outstations may be called by subscribers on the exchange. The control station C (Fig. 1) may comprise two transmitter and receiver combinations T1, R1 and T2, R2 which are connected by lines L1, L2 to a switchboard SB connected to a telephone exchange. The two combinations work on different frequency channels to provide facilities for calls to take place simultaneously to more than one outstation. The station also contains tone oscillators, one for each substation, which may be connected through a uniselector US to either or both of the transmitter-receiver combinations. These uniselectors are operated by an additional dialling pulse representing the outstation after a number for a particular frequency channel has been dialled. When a subscriber dials into the exchange at the control station the number he dials seizes one of the transmission channels and the end pulse connects the appropriate tone generator, the output from which is transmitted as well as the dialled information. Each outstation OS contains a tone receiver tuned to respond only to its own tone so only the bell at the appropriate outstation is caused to ring. However, the outstation receivers (and transmitters) are arranged to switch periodically between the two possible frequency channels of the control station (at say every 15-30 seconds) so that some small time may elapse before the outstation responds to the tone. When the bell rings relays RM/2 and RL/2 are also actuated, and channel switching circuits at the receiver are disconnected so that the outstation remains locked to the correct channel. Relay switching circuits to provide lock-out of other outstations on given frequencies, and to allow outstations to dial into the control station without actuating the tone generators, are described.
Patent GB-867439-A (GB)
Title: Improvements in or relating to containers for edible commodities
IPC: B65D1/38
Filed: 1958-08-22
Abstract: 867,439. Preserving fruit or vegetables in liquids. HYMAN, J., [trading as SALMON SMOKING CO.]. Oct. 26, 1959 [Aug. 22, 1958], No. 26990/58. Class 49. [Also in Group XVII] Fruit or vegetables are preserved in a liquid medium M in a container comprising an inner receptacle A of basket form and a transparent impervious outer receptacle C having an airtight closure O of tinfoil and a replaceable lid P of plastics material. The outer receptacle may be of glass or plastics material; and the inner receptacle, of polyethylene, is vacuumsealed and has a rubber ring N inset in its rim. Skewers L are for extracting the fruit.
Patent GB-976994-A (GB)
Title: Electrodes for cardiac defibrillator
IPC: A61N1/39
Filed: 1962-07-13
Abstract: 976,994. Defibrillator. MINE SAFETY APPLIANCES CO. July 13, 1962 [June 25, 1962], No. 27005/62. Heading A5R. An electrode for a defibrillator incorporates a switch which is actuated by pressure of the electrode against the patient's body. The metal, body-contacting plate 51, Fig. 2, is carried on an insulating disc 52 which has a stem 53 so as to be slidable, against the force of a spring 59, in a hollow handle 56. The plate 51 is connected by a metal rod 54 with contact blades 67 which, when the handle is pressed downward, engage a contact ring 68 and serve to connect the electrode to the high voltage source. Further pressure on the handle causes another contact 72, mounted on an insulating rod 73, to bridge blades 71 and thereby actuate the source. The equipment is supplied through a converter 3, Fig. 1, which raises the input voltage to 2,500 volts and charges condensers C1, C2 in parallel. A switching device 21 comprising two contacts 24, 26 on a slidable rod 23 urged to the right by a spring 34, is initially set by being drawn back to the position shown dotted, where it is held by the catch 28. Pressing the electrodes E1, E2 against the patient first closes contacts S1 and the subsequent closure of contacts S2, in series, energizes a solenoid 43 and releases the catch 28. The rod 23 consequently moves rapidly to the right and contacts 24, 26 bridge fixed contacts A-A1 &c. in pairs, so that condenser C1 is first discharged through the patient and then C2 is discharged in the opposite direction. Specifications 976,992 and 976,993 are referred to.
Patent GB-272378-A (GB)
Title: Improvements in apparatus for cooling, screening and carrying away coke
IPC: C10B39/02
Filed: 1926-10-29
Abstract: 272,378. Koppers Coke Oven Co., Ltd., (Koppers, H.). Oct. 29, 1926. Discharging cooling discharged materials.- Coke discharged from an oven k is cooled and screened by passing it over a series of moving screens through which a current of cooling gas is passed, a conveyer for taking away the returned material, being provided in connection with each screen. As shown, the coke is delivered, by an elevator a, to a bunker c and passes through an outlet controlled by a damper z, on to an inclined shaking screen f, which discharges on to a conveyer h; the smaller coke falls into a hopper t and passes thence to an endless travelling sieve r, the coke retained thereby being carried away by a conveyer i and the dust collected in a hopper l. A fan v withdraws waste gases from the flue of a boiler d and delivers them to the hopper t, sieve r, and bunker c through pipes x, n, o respectively; an additional fan is provided for withdrawing, through pipe p, part of the gas which has passed through the sieve r and delivering it to the pipe o leading to the bunker c. The remainder of the gas passing through the sieve r escapes to the conduit u; to the boiler flues which also receive the gases from the bunker c and the screen f, the latter current traversing a superheater s before reaching the boiler.
Patent GB-362019-A (GB)
Title: Process for the purification of extracts of sexual hormone-like acting substances
Filed: 1930-09-11
Abstract: The process of the parent Specification, according to which a methyl alcoholic solution of hormones is successively diluted with water and extracted with petrol ether after each dilution is modified by substitution for the methyl alcohol of organic liquids miscible with water such as ethyl alcohol, acetone, dioxane, and for the petrol ether of other organic liquids not miscible with water and in which the hormone is insoluble, such as benzine, cyclohexane, decaline, menthane, &c.
Patent GB-1067073-A (GB)
Title: Improved cylindrical honeycomb roll
IPC: D06C23/00
Filed: 1965-06-28
Abstract: 1,067,073. Rollers. METAL-TECH Inc. June 28, 1965 [Dec. 21, 1964], No. 27241/65. Heading F2U. A doffer, card or suction roll comprises a hollow cylindrical openwork honeycomb 28 formed by alternate straight thin strips 41, 42, 43 and undulated, sinuate or half hexagonally bent thin strips 44. 45 secured to the straightstrips at their mating faces 46, 47 &c. to jointly define radial full-hexagonally shaped fluid conduits, split by the straight strips, which strips 41, 42 are formed each end with bent tongues 82 secured by silver brazing to a pair of end heads 26, 27 journalled on stationary hollow bearings 29. The straight and bent strips 41, 42 and 44, 45 may be of mild or stainless steel and secured or bonded together by zinc, solder, epoxy resin or silver brazing, the former bonding agent being applied by dipping the openwork structure in a bath of molten zinc which thereby gives the structure a rust-proof finish, or alternatively in Fig. 4 (not shown), the straight strips may be formed with holes (54) into which dimples (55. 56) are impressed, in the bent strips. to interlock the openwork strips. The straight strips 42 may be of equal height to the bent strips (Figs. 3 and 4, not shown), or, in Fig. 5 (not shown), be of a lesser height (58) with the bent strips (62) crimped around it at (60, 64) and additionally, in Figs. 6, 7 and 8 (not shown), be of tapered cross-section (67) and arranged at the outer, centre or inner edge of the bent strips (68, 69). In Figs. 9 and 10 (not shown) the openwork strips (74) are formed with teeth or serrations (75) to provide point support for sheet-like work such as card clothing. In Fig. 11 (not shown) the coarse honeycomb openwork is surrounded by a second cylindrical but finer thin openwork (90) which may be used for delicate embossments while being supported by the rugged openwork 28, whilst within the roll openwork 28, a similar hemi-cylindrical honeycomb structure (96) and solid hemicylindrical shell (95) mutually form a stationary cylinder which is connected via a conduit (99), e.g. hollow bearing journal 29 (Fig. 1) to a suction or compression air source 33, the hemishell honeycomb (96) forming an edge seal therearound.
Patent GB-442380-A (GB)
Title: Improvements in or relating to machines for grinding or polishing extended surfaces
IPC: B24B7/12
Filed: 1934-09-22
Abstract: 442,380. Grinding and polishing. FAIREST, M., 34, Victoria Street, and PADLEY, L., 53, Cherry Tree Road, both in Sheffield. Sept. 22, 1934, No. 27248. [Class 60] A machine for grinding or polishing the surfaces of metal sheets or plates comprises a grinding &c. cylinder 25 detachably mounted by means of flanges 23, 24 on a spindle 5, which is supported in bearings 6, 7, 8, rotated by a pulley 12, and reciprocated axially by a lever 15 rocked by an adjustable crank 17, driven by a belt 21 from the spindle 5. On the machine bed are mounted pedestals 26, 27 in which is carried a shaft 29 on which is journalled a rocking frame 28, the frame at its other end loosely supporting, on a shaft 38, a sprocket 39 and a divided roller 40, a chain passing over the sprocket 39 and over a sprocket 41 keyed to the shaft 29, which is driven through gearing 42, 46 from a reversible electric motor 43. The ends of the chain are attached to a saddle 34 movable on rollers on guide bars 33 carried by brackets 32 on the frame 28, and the saddle carries a vice 35 for clamping an edge of a sheet 54 to be treated, the sheet 54 resting directly on the roller 40 or on a plate 47 attached to the saddle. The sheet and the plate 47 pass between the roller 40 and the cylinder 25 and the free end of the frame 28 is lifted, to press the work against the cylinder 25, by jacks 48 or by springs or counterweights. The movement of the saddle is reversed at the ends of its strokes by dogs 53 and a switch 52 controlling the motor 43 ; a backing sheet 54 may be interposed between the work and the plate 47 to prevent wear on the plate. The saddle may be moved by a lead screw or screws. According to the Provisional Specification, one of the bearings for the spindle of the grinding-cylinder is carried in a housing having an internal diameter large enough to pass the cylinder for replacement, &c. ; the guide bars for the saddle are inclined to the rocking frame.