baber/WOPTO huggingface dataset:
Patent GB-663293-A (GB)
Title: Improvements in or relating to multi-stage centrifugal pumps
Inventor: ANDERSON HAROLD HENRY
IPC: F04D29/40
Filed: 1949-04-01
Abstract: 663,293. Centrifugal pumps. HARLAND ENGINEERING CO., Ltd. April 1, 1949, No. 8966/49. Addition to 606,947. Class 110(i) In a multi-stage centrifugal pump as described in the parent Specification, the end cover 12 is formed with an axial extension 31 which is mainly of a diameter to permit the passage over it of the long bolts that secure the end cover to the pump casing. At the places where the inlet and outlet ducts in the end cover prevent the use of long bolts the axial extension is extended radially so as to provide metal into which screws 32, at the same pitch circle as the long bolts, may be threaded. Specification 645,921 is referred to.
Patent GB-682143-A (GB)
Title: Improvements in and relating to road-vehicle refuse-collecting containers
IPC: B65F3/22
Filed: 1951-04-17
Abstract: 682,143. Refuse vehicles; tipping vehicles. FEIDERT, J. April 17, 1951 [April 18, 1950; May 22, 1950], No. 8980/51. Class 108 (i). A refuse vehicle has a container 1 which may be selectively pivoted about either of journals 2, 9, the container having a rear closing door 3 pivoted at 4 and a fixed rear partition 6 provided with a forwardly movable flap 8. In use the container is normally in the Fig. 1 position with both the journal locked, the space between the door 3 and the partition 6 being filled first. Journal 9 is then unlocked and the container pivoted forwardly about journal 2, Fig. 2, so that the refuse is displaced to lie in the main part of the container. When returned to its normal position again the wall 6 and flap 8 hold the refuse back so that the space between the door and wall may again be filled. This operation is repeated until the container is full. The container may be emptied by unlocking the journal 2 and the door 3, and tipping rearwardly about pivot 9. The pivots 2, 9 may be selectively unlocked by means of a lever 13, Fig. 4, which operates either of rods 11, 12, from the position shown to move bell-crank levers 23, 24, against springs 16, 17, to release holding bolts 21, 22.
Patent GB-1096705-A (GB)
Title: Method of assembling a drive mechanism
IPC: F16D3/72
Filed: 1965-07-29
Abstract: 1,096,705. Universal joints. EATON YALE & TOWNE Inc. July 29, 1965 [Jan. 11, 1965], No. 9020/67. Divided out of 1,096,704. Heading F2U. The subject-matter is the same as that of the parent Specification, but the claims are directed to methods of assembly.
Patent GB-1520858-A (GB)
Title: Sorting apparatus
IPC: B07C5/342
Filed: 1977-03-03
Abstract: 1520858 Photo-electric sorting GEOSOURCE Inc 3 March 1977 [1 June 1976] 09045/77 Heading G1A In a sorting apparatus a stream of particles falls through two measuring stations where two parameters are investigated and electrical signals are generated depending on the results. The signal corresponding to each parameter controls an ejector further down the path of the particles, an appropriate delay being introduced into the control signal. In the event that both measured parameters are such as to operate their respective ejectors, the control circuit inhibits the operation of the ejector for the second parameter. The invention is described for sorting glass particles. The first parameter is whether the particles are opaque or clear, opaque ones eventually being ejected. The second parameter is whether the particles are coloured or clear, coloured ones being ejected. When a particle is both opaque and coloured it is ejected by the opaque ejector. The clear particles pass both ejectors. Photo-electric measuring stations and logic control circuitry are described, Figs. 2-6 (not shown).
Patent GB-214075-A (GB)
Title: Improvements in charges for fire extinguishers of the foam type, and to the method of preparing such charges
IPC: A62D1/00
Filed: 1923-04-03
Abstract: 214,075. Phillips, W. B. April 3, 1923. Chemicals and substances.-Charges for foam fire extinguishers comprise bicarbonate of soda or its equivalent and liquorice root or solid liquorice extract mixed together in the dry state and then ground preferably in a high-speed centrifugal pinned disc mill. The mixture is used in conjunction wth aluminium sulphate &c.
Patent GB-325149-A (GB)
Title: Device for use with tees in playing golf
IPC: A63B57/00
Filed: 1929-03-21
Abstract: 325,149. Bellow, E. A. March 21, 1929. Tees.-To make a tee more distinguishable from the ground it is gripped in a hole C in the thickened end B of a. strip of coloured material preferably rubber, which rests on the ground with its length in the direction of play, Fig. 3.
Patent GB-902587-A (GB)
Title: Improvements in or relating to poly-alpha-olefines
Inventor: EDWARDS THOMAS ELWYN
IPC: C08K5/42
Filed: 1960-03-16
Abstract: Modified crystalline polyolefins having improved capacity for dyestuffs, are obtained by dissolution therein of an N,N,N-trialkyl ammonium or N,N-dialkyl-N,N-(X)-ammonium alkyl benzene sulphonate, wherein the aromatic alkyl has 1 to 18 C atoms, the other alkyls have 12 to 18 C atoms and (X) is two polyethylene oxide residues each having terminal -OH with the number of ethylene oxide residues being from 2 to 15.  Polyolefins specified are polyethylene and polypropylene.  The modified polyolefins may be drawn to form filaments which may be dyed, e.g. with Solacet dyes.  Specification 810,023 is referred to.
Patent GB-568545-A (GB)
Title: Improvements in the production of organic esters of cellulose
IPC: C08B3/22
Filed: 1943-06-08
Abstract: An organic ester of cellulose is obtained by esterifying cellulose in the presence of sulphuric acid and a solvent for the cellulose ester, and the solution so obtained is ripened after adding, in an amount equivalent to part only of the sulphuric acid, a neutralising compound of a metal which under the reaction conditions does not form a bisulphate and which does not liberate another mineral acid, and also adding a metal salt of an inorganic acid other than sulphuric acid in an amount at least equivalent to the remainder of the sulphuric acid.  Magnesium or calcium acetate or carbonate, or zinc acetate or oxide may be used for first partial neutralization, and for the second part of the treatment to remove sulphuric acid there may be used magnesium or zinc chloride, magnesium or calcium nitrate, magnesium ortho- or pyrophosphate, or calcium phosphate.  Ripening may be carried out at 30-100 DEG  C. and the amount of water present may be 15-200 per cent of the weight of the cellulose.  In an example, cotton is esterified with a mixture of acetic anhydride, acetic acid, and sulphuric acid, the temperature being allowed to rise to 35 DEG  C. After acetylation is complete, water is added to destroy unreacted anhydride.  A neutralising agent comprising a mixture of magnesium and calcium acetates is added to neutralise half of the sulphuric acid, and water is also added.  The rest of the sulphuric acid is then neutralised and replaced by another inorganic acid by adding magnesium chloride together with some acetic acid and a further amount of water.  Ripening is carried out at 35 DEG  C. for 2 days. The ripened cellulose acetate is precipitated by the addition of a large amount of water.  The esters obtained have a high degree of stability and are suitable for moulding and other purposes without any further stabilising treatment.  The process may be used in the production of cellulose propionate, butyrate, and other cellulose esters.  Specification 446,723 is referred to.
Patent GB-1141453-A (GB)
Title: Aircraft landing systems
IPC: G05D1/06
Filed: 1966-03-02
Abstract: 1,141,453. Radio navigation. CUTLERHAMMER Inc. 2 March, 1966 [2 March, 1965], No. 9250/66. Heading H4D. An aircraft is to follow a desired flight path consisting of an initial portion (" glide," Fig. 1, not shown) directed to a point (A) in advance of a touch-down region (TD), a final portion (" terminal ") directed towards a site (B) at a shallow elevation angle and an intermediate portion (" transition ") as a smooth transition between the initial and final portions; the aircraft apparatus comprises means responsive to signals from site B to give a signal (F M , Fig. 2, not shown) representing the elevation angle of the aircraft relative thereto, means for producing a signal (D) representing the distance from the aircraft to site B, means responsive to signal D to produce an elevation angle reference signal (F R ) according to the relationship of elevation angle as a function of distance along the desired flight path from site B and an automatic pilot or an indicator (14) responsive to the difference between signals F M  and F R . The glide path may be given by an ILS beacon at A; or the system of Specification 1,014,633 or 940,509 may be employed. The signal F R  appears on the wiper of a non-linear potentiometer (6) fed by a D.C. voltage (G R ), representing the correct glide angle, and in series with fixed resistors (5, 7) to form an analogue of the desired flight path; the potentiometer wiper is positioned in accordance with signal D by a motor (16) selectably controlled by either (i) a comparison between signal F M  and a signal F c  on the wiper of a second potentiometer (106) also positioned by that motor, signal F c  representing the value of aircraft elevation angle F from site B if the motor shaft position is correct being derived from a resistor circuit including the second potentiometer and fed with a D.C. voltage G C  representing the actual aircraft elevation from point A along the glide path; or (ii) a comparison between the temporal derivative D of signal D, derived from a tachometer-generator (19) coupled to the above motor, and a signal D s  on the wiper of a potentiometer (21) positioned by a second motor (23) itself controlled by the difference between voltages D and D s : D s  represents a stored value of aircraft speed on its arrival at the end of the glide portion of the flight path. When the aircraft is at that point the first motor control input is as in (i) above and thereafter as in (ii) above, the switch-over occurring when signal F M  falls below a signal G c /Z where G c  represents the actual angle from site A during the glide portion and Z equals the ratio G/F (see Fig. 1, not shown) at the point where the desired glide leads into the transition portion. Signal D may alternatively be provided by radar.
Patent GB-846732-A (GB)
Title: An automatic slip control system for electric alternating current commutator motors
IPC: H02K27/18
Filed: 1957-03-21
Abstract: 846,732. Automatic speed-control systems. ERHART, J. March 21, 1957 [March 29, 1956; July 20, 1956], No. 9263/57. Class 38 (4). The speed of a commutator motor 1 is regulated by the rotation of the brushes when current is supplied to the rotor, or by an induction regulator when current is applied to the stator, by a servomotor 3 operated in response to the difference between the output of a tachometer generator 2 and a reference voltage from a potentiometer 5, a spring-loaded brake 4 acting on the servomotor being electrically withdrawn when the error exceeds a predetermined amount. The amplifier 7 feeding the servomotor may be magnetic or of the amplidyne type and the brake winding may be in the input or output side thereof. The above system may be included in manual control arrangements using changes of reference voltage for starting and stopping and a braking switch may be operated by the brush holder in its minimum position. The arrangements are said to be suitable for regenerative braking.
Patent GB-549398-A (GB)
Title: Improvements in or relating to flame arresters for use with compression ignition engines
IPC: F01N3/06
Filed: 1941-07-23
Abstract: 549,398. Flame-dampers. FLATT, A. July 23, 1941, No. 9275. [Class 7 (ii)] [Also in Group XXI]  A flame-arrester for the exhaust or inlet pipes of compression-ignition engines, of the kind composed of a number of annular discs 1 . assembled so as to afford lateral passages between them for the exhaust gas or air, has the discs clamped together, so as to constitute a removable unit, between end plates 2, 3 by means of bolts 4, the upper plate 2 forming a closure, and the lower plate 3 having a flange 3a entering an opening. 6 in the housing. The upper end may be further fitted with a lid 13 having recesses 14 for receiving the heads of studs 7 securing the unit in position. A lateral pipe connection 17 is provided on the housing for the gases. An intermediate plate 10 fitting over enlargements 12 on the bolts may be provided.
Patent GB-861232-A (GB)
Title: Trunks for men and method of manufacturing such trunks
IPC: D04B1/24
Filed: 1958-03-24
Abstract: 861,232. Knitting. ETABLISSEMENTS GARNIER-LUNEAU. March 24, 1958 [April 30, 1957], No. 9365/58. Class 74 (2). [Also in Group VII] Men's pants are knitted on a straight-bar machine by knitting the front portion in two parts 2, 3 commencing at the waist and knitting the part 2 first, one edge 6 of which is straight and the other, 5, of which is fashioned to make the front of the leg opening. On completion of the part 2, the last row of loops is retained on the needles at a low inactive level below the knocking-over bits, Fig. 7. The second part 3 is then commenced from the waist, a portion of which will overlap the part 2, this portion including a straight edge 8. The other edge 7 is fashioned to provide the front of the other leg opening. When the part 3 has been completed the last row of loops of the part 2 is raised to an operative level and knitting of the rear panel 4 is commenced, the first course of loops of the rear panel being drawn through the loops of both the parts 2 and 3 of the front portion so that the two front parts and the rear panel are integrally knitted together along a course at the crutch of the garment, Fig. 9. The rear panel is knitted in one piece and is suitably fashioned at each edge to complete the leg openings. The upper outer edges of the rear panel and front parts are sewn together and an elastic belt is secured at the waist. The leg openings are reinforced by a strip of braid. In an alternative embodiment, Fig. 11, the front portion is knitted in three parts commencing with a central rectangular part 17 which is retained on the needles whilst two side parts 18, 19 are knitted simultaneously. The rear panel 20 is finally knitted on to the three front parts at the crutch in a similar manner to the previous arrangement.
Patent GB-250610-A (GB)
Title: Means for learning and practising driving of motor vehicles
IPC: G09B9/05
Filed: 1926-04-09
Abstract: 250,610. Ptatschek, E., and H³ckel, A. April 11, 1925, [Convention date]. No Patent granted (Sealing fee not paid). Drivers, means for facilitating training of. - The chassis 1 is supported as shown, the front wheels being placed on a band passing round rollers 16, 17, and being driven by chains from the engine. A " tracer " wheel 15 is connected by links 14, 12, with the steering gear, and the driver endeavours to keep it in contact with a sinuous line, representing a road on the band. Either the band or the road line is placed in circuit with an electric signal to indicate errors in steering.
Patent GB-671941-A (GB)
Title: Process and apparatus for separating finely divided substances
IPC: B04C3/00
Filed: 1949-04-06
Abstract: 671,941. Separating granular materials; grinding and crushing. DULAIT, J. April 6. 1949 [April 6, 1948; March 26, 1949], Nos. 9399/49 and 9400/49. Classes 59 and 117 In an arrangement for separating granular materials such as ores, grain, and the like into fractions according to particle size, the material is projected from a rotor 2 through a narrow slit 5 to form a thin annular web which is caused to impinge against an annular deflecting surface 7 before any spreading of the web thickness so that a gaseous current can divert the fine particles from the path of the coarse particles without interfering with the latter. As shown in Fig. 1, the rotor comprises a disc 2 mounted on a horizontal shaft 1 and having radial blades 3 supporting an annular conical plate 4 which defines with the disc 2 a narrow peripheral slit 5. The rotor rotates in an enclosed stator comprising a member 6, 8 bounding the plate 4 and slit 5 of the rotor and connected to a conical deflecting member 7, the end 9 of which is connected to a cyclone separator 10. Material fed to the rotor 2 is projected with accompanying air through the slit 5 and the annular gap bounded by the part 8 of the stator to impinge on the conical stator wall 7, the coarse particles falling back to be discharged through an outlet 12 in the stator 7 and the fine particles being carried in the air stream to the cyclone 10. The air stream may be assisted by a fan 13 on the shaft 1 within'the stator 7, and additional air inlets 14 may be provided in the outlet conduit 12. In alternative arrangements described the material may be directed axially from the slit 5 to a conical or concave deflecting wall and the additional air inlets may be arranged peripherally in the walls of the stator 7 and conduit 12. The main air intake may be via a ring arranged closely behind the projected web of material, and the axis of the stator 7 may be directed upwardly with an additional discharge conduit being provided near its apex for any less fine particles settling out. Fig. 7 shows a crusher having a rotor 25 with front and rear blades 26, 27 rotating in a stator with front and rear peripheral chambers 28, 29, the rear rotor blades 27 having a cover disc 2 defining, with a ring 30 closing the rear stator chambers 29, a narrow slit 5 through which crushed material is projected against a conical stator extension to effect a separation as described above. In like manner the separator 2, 7 may be combined with a hammer mill.
Patent GB-1479132-A (GB)
Title: Aluminium salts
IPC: C07F5/06
Filed: 1976-03-09
Abstract: 1479132 Antiperspirant compositions RHONE-POULENC INDUSTRIES 9 March 1976 [11 March 1975] 9406/76 Heading A5B [Also in Division C2] Antiperspirant and deodorant compositions comprise a compound of formula I: wherein a is an integer of 1 to 4, b is an integer of 1 to 5 and c is an integer of 1 to 13 and are such that 3b=a+c and b/a is greater than or equal to one and less than or equal to 2.5 and a suitable carrier for topical administration.
Patent GB-107638-A (GB)
Title: Improvements in and relating to Apparatus for Operating Railway Barrier Gates.
Inventor: JOHNSON ARTHUR HENRY
IPC: B61L29/24
Filed: 1916-07-04
Abstract: 107,638. Johnson, A. H. July 4, 1916. Operating and controlling gates hydraulically and electrically.-Relates to railway crossing-gate operating-appliances of the kind in which an electric motor drives a pump which is enclosed in a supply reservoir and delivers liquid to the moving element of an hydraulic motor connected to the gates. According to the invention, a single controlling-valve is provided so arranged that, by moving the valve-lever into its successive operating positions, the gates may be started slowly, then moved quickly, and finally slowed down to bring the gates gently against the stops. The valve 9 is mounted between the pump 1 and the hydraulic motor 4, which may be of the vane or piston type, and is so constructed that, in its neutral position, the motor ports 18, 19 are closed and the by-passes 16, 17 to the pump reservoir 3 are fully open; in the first operative position, the motor ports 18, 19 and the by-passes 16, 17 are all partly open; and in the second operative position, the motor ports 18, 19 are fully open and the bypasses 16, 17 closed. Relief valves 10 are provided in the passage 7 leading from the pump to the valve 9. The valve-lever may be arranged to operate the switch of the electric motor driving the pump, so that the pump is only started when the valve is moved to its first operative position in either direction. When a supply of liquid under pressure is continuously available, the electric motor and the pump may be dispensed with, the controlling-valve admitting the liquid to, or bypassing it from, the hydraulic motor as required. The gates may be interlocked with the signals by known arrangements.
Patent GB-396164-A (GB)
Title: Improvements in or relating to control equipments for direct current electric motors
IPC: B60L15/04
Filed: 1932-04-01
Abstract: 396,164. Master control of D. C. motors. FERGUSON, A. D., Ardriac, Ashton Lane, Ashton-on-Mersey, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. April 1, 1932, No. 9421. [Class 38 (iii).] In a system of series-parallel control for motors or groups of motors 1, 2, in which the transition is effected, after accelerating resistances r, r<1>, have been excluded, by shortcircuiting the motor 2, the motor 1 is arranged for connection to the supply through two series-connected switches LS3, LS4, which close separately, the switch LS4 closing before the motor 2 is short-circuited, and causing the resistance r<1> to be reinserted in the circuit of the motor 1, and the switch LS3 closing after the motor 2 has been successively shortcircuited and open-circuited. A sequential contactor system controlled by a master controller and comprising interlocked contactors under the control of current limit relays, one of which is modified according to the operating condition of the motor, is described with reference to Fig. 2 (not shown). The switching sequence is briefly as follows : Main switches LS1, LS2, a " joining resistance " switch JR, and a series switch S, are first closed, followed by closure of resistance switches RR1, R1, RR2, R2, RR3, and R3, and in a " joining " switch J, in the order named and under the control of a current limit relay, the switch JR opening to give the final series position. Upon movement of the master controller to the parallel position, the switch LS4 is closed and de-energizes all of the resistance contactors. This is followed by the closure of a " ground " switch G which short-circuits the motor 2, and causes the switch S to open. The opening of the switch S, which breaks the short-circuit of the motor 2, is followed by closure of the switch LS3 and a parallel switch P, the switch LS3 allowing the resistance contactors to close again in sequence under the control of current limit relays and accelerate the motors to full parallel position. The contactor switches may be electropneumatic.
Patent GB-377623-A (GB)
Title: Improvements in bath or washing preparations
IPC: A61K8/92
Filed: 1932-04-01
Abstract: A preparation for use in washing consists of turkey red oil, mixed with an essential oil or other natural or synthetic odoriferous oil. For example, pine needle oil is mixed with turkey red oil, and glycerine is added together with an aqueous-alcoholic solution of a dye such as fluorescein.
Patent GB-347421-A (GB)
Title: Improvements in or relating to gas meters
IPC: G01F3/22
Filed: 1930-03-25
Abstract: 347,421. Gas meters. WILSON GASMETERS, Ltd., G., Foleshill Road, Coventry, WILSON, J. H., Mill House, and POOLE, D. C. E., The Elms, both in Baginton, near Coventry. March 25, 1930, Nos. 9465, 14648, 15725, and 15726. [Class 54.] The slide valves 6 of a gas meter are reciprocated over parallel grids 7 by rocking arms or levers 9 directly engaging or connected by links 11 to a single-throw crank 2 operated from the flag wires 4. The levers 9 may be of the same length and of different orders or of different lengths and the same order. In Figs. 1 and 2 the pins connecting the links 11 and levers 9 are adjustably secured in slots 9a in the levers 9. In Fig. 6 the levers 9 are pivoted at 13a to a bracket 13 and are formed with slots 9b, 9c at right-angles engaged by the crank 2 and with slots at their ends engaged by pins on the valves, the whole being assemblable as a unit ready for application to the meter. In Fig. 8 the levers 9 are pivoted at 10 to a bracket 13 and are operated by links 11 connected to the crank 2, the levers 9, 11 when the levers 9 are in alignment forming a right-angled triangle. This mechanism also can be assembled as a unit. The inner valve ports 7a of both grids 7 open into an exhaust pipe 15 arranged on the underside of the valve plate. The outer ports 7b, 7c of each grid open one direct into the case chamber below and the other by a passage 18 into the leather chamber at the opposite side of the partition plate 14.