baber/WOPTO huggingface dataset:
Patent GB-730882-A (GB)
Title: An improved refuse collecting vehicle
Inventor: FINCH ROBERT MANFIELD
IPC: B65F7/00
Filed: 1952-07-03
Abstract: 730,882. Cleaning dust bins. NOTTING- HAM, LORD MAYOR, ALDERMEN & CITIZENS OF THE CITY OF. July 3, 1953 [July 3, 1952], No. 16710/52. Class 138 (1). A vehicle for collecting refuse from dust bins has at least one open-mouthed housing for receiving the open end of a bin, a brush mounted within the housing for rotation within the bin and means for rotating the brush while inserted within the bin. A shaft 5, Fig. 3, has detachably and resiliently mounted thereon a brush 4, and the shaft and brush are enclosed in a housing 2 at one side of the vehicle. The housing 2 has a hinged door 22 and a bottom tray portion 19 which can be removed by sliding it out of guides 20. The brush shaft is driven from a power take-off 11, Fig. 2, of the vehicle engine, through a shaft 14, sprockets 16, Fig. 3, chain 15 and bevel gearing 13. In use a control lever 12 is operated to cause the shaft 5 and brush to rotate. When a dust-bin " DP," Fig. 2, is placed over the brush, dirt is drawn to the mouth of the bin owing to the helical formation of the brush tufts. This dirt is collected in the tray 19, the contents of which are later deposited in a box 23 at the vehicle side. A box 24 for disinfectant. which can be applied to the inside of the dust bins, is also provided. As will be seen from the Figures the parts may be duplicated at the other side of the vehicle, in which case a second control lever 12<SP>1</SP> is provided. Instead of the two control levers, a single control lever may be provided in the driver's cab of the vehicle, as described with reference to Fig. 6 (not shown).
Patent GB-512736-A (GB)
Title: Improvements in internal linear-dimension gauges of the dial type
IPC: G01B5/08
Filed: 1938-06-03
Abstract: 512,736. Linear-dimension gauges. STANDARD GAGE CO., Inc. June 3, 1938, No. 16721. Convention date, April 5. [Class 106 (ii)] Comprises an internal gauge of the dial type with a head containing means for operating the dial indicator, an aligning pin adjustable in the periphery of the head, a diametrically opposed measuring plunger and a pair of locating studs slidable radially in the head and located one on each side of the plunger, and in the same plane therewith, characterised in that extension are provided for the aligning pin, measuring plunger and locating studs to increase the range of the gauge. The plunger 18 extends from a standard form of dial indicator into the housing 16 whch is secured to a Y-shaped head 20 provided with a central recess to receive the housing 16 to which it is secured by screws. The head has radial and aligned bores 24, 25 and two other radial bores 48. In the bore 25 slides the measuring contact plunger 32, the inner end of which contacts with one end 31 of a bell crank 29 the other end 30 of which contacts with the rod 18 of the indicator mechanism. The outer end of the plunger 32 is threaded to receive a rounded tip 62 or an extension 61. A lock screw 36 prevents rotation of while permitting limiting sliding of the plunger. In the bore 24 is slidably mounted a plug 37 formed with a head 38 extending into the recess 23 which head houses a spring 41 between the plug and an adjustable screw 40. Into the outer portion of the threaded bore is screwed a measuring pin 44 locked by a nut 45. Locating studs 47 are provided in the bores 48, being withdrawn into the bores by springs 52 attached to the studs at 53. Normally they are pressed outwardly by the stronger spring 41 acting through the head 38 which engages the inner ends of the studs. Extensions 57 may replace the tips 62 and extensions 61, 64 may be used on the measuring anvils when large bores are to be gauged. U.S.A. Specification 2,095,405 is referred to.
Patent GB-776497-A (GB)
Title: Method of producing wire seat frames
IPC: B21F27/12
Filed: 1955-06-10
Abstract: 776,497. Making seats; angular bending; corrugating. GENERAL MOTORS CORPORATION. June 10, 1955 [June 14, 1954], No. 16740/55. Classes 83 (2) and 83 (4). In producing wire seat frames, a wire mesh blank is made by welding together stiff straight wires intersecting at right angles, and at least some of the wires are bent by die pressure applied by two press members, one of which carries spaced female dies and is provided with parallel grooves adapted to receive the wires lying in one direction and the other of which carries spaced male dies adapted to receive the wires lying in the other direction so that the blank is securely held by the grooves when the press is closed. Wires 2, 4 are welded at their intersections to form the mesh which is placed in the press comprising male dies 18, Fig. 8, on a holder 20 and female dies 22 on a holder 24 movable towards and away from holder 20. The wires 4 are received in grooves 32 in a pad 28 resiliently supported from the holder 20 by air pressure pins 30, the wires 2 resting on the dies 18. The dies are then partially closed to hold the mesh, grooves 26 in the holder 24 receiving the wires 2. When the dies are completely closed as in Fig. 8, deformations 8, 81 are formed in wires 2 and the pad 28 is moved downwardly against the pins 30. The forming parts of the dies 18, 22 are at 60 degrees to the longitudinal axis of the wires 2 and the deformations form anchors for the ends of a seat spring, e.g. a flat zig-zag wire spring. Portions of the wires 2, 4, e.g. parts 2<SP>1</SP>, 4<SP>1</SP> of Fig. 1 may be removed during the die forming operation. In a second die forming operation portions of wires 2, 4 are bent at 10, 12 and other portions of wires 4 are bent at 14, 15, 16 to produce a finished seat frame. The welding and successive die-forming steps may take place in the same machine and the deformations 8, 81 made in wires 2 may also be made in wires 4.
Patent GB-961474-A (GB)
Title: Oxidation of methylaromatic compounds to acids
IPC: C07C51/265
Filed: 1962-05-01
Abstract: Aromatic carboxylic acids are obtained by oxidising a methyl-substituted aromatic compound (which may be a heterocyclic compound) in the liquid phase and at atmospheric pressure with molecular oxygen in the presence of an oxidation catalyst and an ether, which acts as a promoter.  The ether must have at least one a -hydrogen atom but otherwise may be an alkyl, aryl, alkaryl, aralkyl or alkoxyalkyl ether. Specified ethers are dibenzyl ether, diisopropyl ether, di-n-butyl ether, dimethoxymethyl ether and the dibutyl ether of ethylene glycol.  The ether is used in a proportion of 0.1-10 parts by weight per part of aromatic compound. Specified oxidation catalysts are heavy-metal phthalocyanines or porphorazines, e.g. iron or cobalt phthalocyanine, and metal salts of carboxylic acids, e.g. cobaltous naphthenate or acetate or manganese acetate. The oxidation may be effected with oxygen, air or other oxygen-containing gas, the quantity of gas (calculated as oxygen) being about 0.1-4 c.ft. per hour per 100 grams of aromatic compound. The reaction temperature lies between 50 DEG C. and the boiling point of the aromatic compound under atmospheric pressure, and the reaction period may be 0.5-10 hours. Examples are given of the oxidation of toluene, p-xylene, mesitylene and p-toluic acid. Other specified compounds which may be treated are o- and m-xylene, hemimellitene, pseudocumene, a - and b -methylnaphthalene, dimethylnaphthalene, o- and m-toluic acids, xylic acid, 5-methylisophthalic acid, mesitylenic acid, methylpyridine, tolunitrile and p-chlorotoluene.  Phenyl benzyl ketone is obtained as a by-product when toluene is oxidized in the presende of dibenzyl ether.
Patent GB-420689-A (GB)
Title: Improvements in and relating to the heating of retort furnaces and coke ovens
IPC: C10B21/22
Filed: 1933-06-12
Abstract: 420,689. Retort furnaces &c. COMPAGNIE GENERALE DE CONSTRUCTION DE FOURS, 8, Place des Etats-Unis, Montrouge, Seine, France. June 12, 1933, No. 16761. Convention date, June 11, 1932. [Class 51 (ii)] In a vertical retort or coke oven, in which the vertical flues at the two sides of the retort are connected at their upper ends so that the heating-gases will flow therethrough in series, combustion is effected in stages by the admission of additional combustion air, and the connecting channels between the two sets of flues are arranged at the sides so that the retort can be of maximum capacity. As shown in connection with a reversibly-fired retort, regeneratively-heated gas is supplied through the conduit 1 to the lower ends of the flues 2, which extend continuously over the heated portion of the retort, while the heated air is admitted to the flues at different levels through the conduit 4, passages 5 and ports 7. The combustion products pass through the side passages 8 to the flues 9 at the opposite side of the retort and to the regenerators through the conduits 11, 12. Regulation is effected by solid or perforated blocks R<3>, R<2>, and separation between the flues 25 maintained by blocks R'.
Patent GB-1129232-A (GB)
Title: Linearly swept frequency generator
IPC: G06G7/06
Filed: 1967-04-12
Abstract: 1,129,232. Automatic frequency control systems. SANDERS ASSOCIATES Inc. 12 April, 1967 [9 May, 1966], No. 16860/67. Heading H3A. A voltage-controlled oscillator 12 is swept in frequency by a function generator 10, and the phase of the oscillator is repetitively sampled to derive an error signal used to correct the frequency sweep. In Fig. 3 the frequency sweep is linear and the generator 10 is a simple integrating circuit. The output of oscillator 12 is changed in frequency in mixer 48 and fed through amplifier 52 to a phase detector 14 gated by a reference signal derived from oscillator 57 via a frequency divider 56 and a switch 114. It is shown that with a linear sweep it is possible to arrange that zero-crossings of a reference signal coincide with zero-crossings of the oscillator if the sweep is correct. Any error signal output from the phase detector is converted into a constant D.C. level by a pulse stretcher 55 and fed through resistance 64 and also through a differentiating circuit 60, 62 to an integrating amplifier 68 which feeds a correction signal back to the control terminal 47 of the oscillator 12. This correction signal has three components which are shown to be necessary for correcting the frequency sweep, i.e. a phase correction from the differentiating circuit, a frequency correction from unit 55, and a slope correction from the integrating action of amplifier 68. Synchronizing initial frequency.-Before a frequency sweep starts the switch 82 is opened to allow the output of amplifier 52 to pass to a frequency and phase detector 84 where it is compared with the output of oscillator 57 to derive an error signal which is fed through an amplifier to the control terminal 47 of oscillator 12. The sweep is started by a multivibrator 116 which actuates monostable circuits 118 and 120; the former actuates switches S2 and S3 which discharge the integrating capacitors associated with amplifiers 30 and 68, and the latter alters the condition of switches 82 and 114. The multivibrator also sets a bi-stable circuit 126 which is re-set when switch 114 is opened again. The re-set pulse opens switch S1 to allow the sweep to start, and is differentiated by capacitor 130 and resistance 132, this differentiated pulse being fed back to oscillator 12 to offset its frequency from that determined by oscillator 57; this offset is shown to be desirable if the same oscillator 57 is to be used to stabilize the initial frequency and to generate sampling pulses through divider 56. Discriminators.-The phase detector 14 may comprise a diode bridge (Fig. 7, not shown) which is opened by the sampling pulses to allow the instantaneous value of the input to pass to an output capacitance. The frequency and phase detector 84 (Fig. 8, not shown) may comprise a diode bridge supplied with the reference frequency and with in-phase and quadrature components of the output from amplifier 52.
Patent GB-586977-A (GB)
Title: Improvements in or relating to wooden boxes or like containers
IPC: B65D85/34
Filed: 1944-09-04
Abstract: 586,977. Boxes. FIDDES, E. S. O., and MACKINNON, L. (Representatives of FIDDES, J.). Sept. 4, 1944, No. 16870. [Class 18] A unit for forming part of a box or like container consists of three portions, 2, 3, 1 forming respectively a side, part of a lid and part of a bottom, the three portions being connected together at their adjacent edges by pliable strips 8 secured in position by battens 4, 5, 6, between which and the portions the strips are located. The strips 8 may be of thin metal, fabric, wire, fibre board or the like and may extend the full width of the unit or, as shown, may be provided only at the adjacent edges of the units : where they are of strip metal, the ends may be provided with anchoring teeth. The box is formed by two such units secured around two ends, the lid and bottom portions meeting at or near the centre lines of the top and bottom of the box. The battens may project beyond the face edges of the end of the bottom portions, as at 10, 11, and may be cut away, in a complementary manner, preferably at an angle at 12 and 13, so as to fit against one another when the box is assembled.
Patent GB-1452722-A (GB)
Title: Recording method
IPC: B41M5/136
Filed: 1975-04-23
Abstract: 1452722 Chemical printing FUJI PHOTO FILM CO Ltd 23 April 1975 [23 April 1974] 16916/75 Heading B6C [Also in Divisions D1-D2 and G2] A recording method comprises contacting a colour former having a molecular extinction coefficient of not less than 100 in an ethyl alcohol solution with cellulosic fibres to form a coloured reaction product, in the absence of any further electron-accepting compound. The cellulosic fibres may be in the form of paper, or in the form of flock coated on a substrate, e.g. film or paper. A colour image may be obtained by applying an ink containing the colour former on to paper by a writing instrument, e.g. felt pen or by applying the ink through a stencil. A print may be obtained by applying the ink to cotton cloth. Also, a copy of an original pattern and a rough sketch can be obtained by superposing a sheet containing the colour former in capsules on an engraved printing plate made of wood and by writing with pressure.
Patent GB-1421611-A (GB)
Title: Synthetic fibres and their preparation
IPC: C08F8/00
Filed: 1973-04-09
Abstract: 1421611 Polyvinyl alcohol fibres KURARAY CO Ltd 9 April 1973 [11 April 1972 23 June 1972] 16971/73 Heading B5B [Also in Division C3] Polyvinyl alcohol fibres are produced by wet spinning an aqueous solution containing, in addition to the polymer, boric acid or a borate and from 0À01 to 5% based on the weight of the polymer of piperidine or a polyfunctional additive. The polyfunctional additive is selected from the following classes: diamines, polyamines, hydroxyamines, mercaptoamines, aminocarboxylic acid, aminopolycarboxylic acids, salicylic acid and substituted derivatives of salicylic acid. The solution is wet spun into an alkaline coagulation bath and may then be drawn, neutralized with acid, hot drawn when wet, washed, dried, hot drawn again and heat-set. The quality of these fibres is stated to stay high even after prolonged use of the spinneret; this is throught to be due to the chelation of metal impurities, which normally deposit on the spinneret, by the additive.
Patent GB-835604-A (GB)
Title: Improvements in and relating to retractable undercarí¡í¡s for trailer vehicles
IPC: B60D1/66
Filed: 1957-05-29
Abstract: 835,604. Road vehicle undercarriages. BLACK, D. S. P., and GRANT, K. A. May 15, 1958 [May 29, 1957], No. 17013/57. Class 108(2) A trailer has support wheels 20 carried by legs 19 which are pivotally mounted at 18a so as to be retractable rearwardly (Fig. 4, not shown) when the trailer is in coupled position on the tractor. The legs 19 carry. auxiliary legs 21 which bear at their upper ends on a stop 11a in the event of the leep 19 failing to return to their loadbearing position, or in the event of failure of locking means. The stop lla is in the form of a circular channel section member which is carried by cross members 11, and to which is welded a turntable member 10. A lower turntable member 12 carries the pivot 18a and also stub axles 14 carrying rollers 15 which co-operate with ramps on the tractor during coupling up. A guide device 23 secured to each leg 21 comprises an inverted L-shaped track 24 closed at its upper end and open at its lower end. Pins 29 are carried by arms 27b which are rigid with a member 30, and also with arms 27 pivotally mounted on rearwardly extending arms 26 rigid with the member 12. A pair of springs 32 acts to draw the member 30 forwardly so that in the extended position of the wheels 20, the pins 29 engage the upper end of the track 24. This holds the arms 19 in extended position. A further locking action is provided by lugs 31 on the arms 27b engaging the tops of the respective guide devices 23. When the trailer is uncoupled from the tractor, the rearwardly extending trip guide (not shown) of the latter co-operates with a rubber roller 28 carried between the arms 27. This causes the arms 27 to swing backwards and the pins 29 are thus made to bear on the track 24 and retract the legs 19.
Patent GB-580434-A (GB)
Title: Improvements in or relating to the production of artificial insolubilised wet-spun protein filaments
IPC: D01F4/00
Filed: 1944-09-06
Abstract: Wet-spun coagulated protein filaments that have been insolubilized with formaldehyde in the presence of strongly acidified saline solution, are treated with a strong aqueous formaldehyde solution having a pH value between 1.9 and 4.0, preferably between 2.0 and 3.5.  The required pH value may be obtained by adding strong acids, buffered strong acids, or weak acids of high dissociation constant. An example is given in which a matured alkaline solution of pea-nut globulin is spun into an acid bath, stretched, soaked in a saturated sodium chloride solution and cut into staple fibre.  The staple fibre is insolubilized in a solution containing formaldehyde, sulphuric acid and sodium chloride, washed and dried, and then immersed in a 40 per cent formalin brought to a pH value of 3.3 by the addition of sulphuric acid.  The fibre is washed and treated with a solution of sodium cetyl sulphate, a solution of sodium carbonate, again washed and dried.
Patent GB-965455-A (GB)
Title: Roof-supporting device such as pit props
Inventor: FARR PETER
IPC: E21D15/51
Filed: 1961-05-10
Abstract: 965,455. Hydraulic pit props. DOWTY MINING EQUIPMENT Ltd. Aug. 9, 1962 [May 10, 1961], No. 17050/61. Heading E1E. A pressure-fluid-operated load-supporting device such as a pit prop comprises telescopically-related outer and inner members 1, 3 together forming a variable-volume chamber 27, a valve 10 (acting as a setting or a release valve) having co-operating closure parts, namely a movable valve seat member 11 and a movable valve element 12, means to apply to the part 11 a fluid under pressure to move it to separate the parts 11, 12 and permit the fluid to enter the chamber 27 to set the device and further means to apply fluid under pressure to the part 12 to move it to separate the said parts to permit fluid in the chamber 27 to escape (via a pipe 29 at the valve port 26). There may be selector means arranged to apply fluid pressure to the part 12 through a chamber 24 or to the part 11, as desired. A pressure relief valve 18 may be within a housing 16 forming part of the valve element 12. The parts 11, 12 are in a valve block 8 attached to or forming part of the member 3 and a stack pipe 29 is between the valve 10 and the chamber 27. The pressure fluid applied to the valve element 12 is used to facilitate contraction of the device.
Patent GB-1111560-A (GB)
Title: Improvements in or relating to sausage dividing and twisting machines
Inventor: MCDONALD ALEXANDER JOHN
IPC: A22C11/10
Filed: 1967-04-13
Abstract: 1,111,560. Sausage dividing and twisting machine. J. C. WETTER & CO. Ltd. 13 April, 1967, No. 17100/67. Addition to 1,076,956. Heading A2B. A sausage dividing and twisting apparatus as described and claimed in Specification 1,076,956 is improved or modified by incorporating therein a locking collar 43 (e.g. of nylon) which surrounds and is slidable along nozzle 10, and has an annular shoulder 44 which when the collar 43 is in its locking position as shown, engages notches 42 on weights 40 carried by arms or levers 22 such that the shoes 25 of arms 22 are retained in proximity to the external surface of the nozzle 10 and prevented from moving from the nozzle against the action of bracelet spring 29 by the folds or creases in sausage casing 46 as the latter is drawn from nozzle 10. A projection 48 on each arm 22 serves to prevent the creases reaching the shoes 25. The collar 43 is connected to sleeve 49 surrounding and slidable along cylinder 19. The sleeve 49 carries screws 50 which when the collar 43 is moved from its locking position, contact arms 22 to force them away from nozzle 10 to allow another sausage casing to be mounted over nozzle 10.
Patent GB-334551-A (GB)
Title: Improvements relating to electro-magnetic gramophone pick-ups or recorders
IPC: H04R11/08
Filed: 1929-06-05
Abstract: 334,551. British Thomson-Houston Co., Ltd., and Bowen, A. June 5, 1929. Magnetic instruments; phonographic recorders and reproducers. - In a gramophone pick-up or recorder of the kind having a perma.- nent or electromagnet and a coil or coils linked with a magnetic flux, the needle or stylus being of ferromagnetic material and producing, by its vibrations, variations in the magnetic flux path, the needle 7 forms an extension of one pole 13 of the magnet 1. The other pole of the magnet has a soft iron pole piece 2 divided into two converging branches 3, 4 on which are arranged coils 5, 6 connected in series. The needle is adapted to vibrate in the gap between the branches 3, 4. This vibration does not involve any substantial variation in the total flux through the magnet and needle, which are of high reluctance, but it varies the distribution of the flux through the low reluctance branches 3, 4, thereby inducing current changes in the coils 5, 6. A light stylus holder 8 of ferromagnetic material is pivoted to the pole 13 of the magnet through ferromagnetic brackets 10, 11, with the interposition of rubber strips 12 for damping purposes. Specification 276,466 is referred to.
Patent GB-1031725-A (GB)
Title: Operating fluidised beds
Inventor: MCLAREN JAMES
IPC: B01J8/24
Filed: 1962-05-04
Abstract: Strongly caking particulate coal, e.g. of British Coal Rank Classification 300, 400, 500, 600 and 700 (specific examples are given), is heat-treated in a fluidized bed, e.g. as the first step in the formation of smokeless briquettes by the method described in Specification 964,779, by first forming a fluidized bed of hot, fine weakly or non-caking coal (of B.C.R.C. 800 and 900, specific examples given) and gradually introducing the fine strongly caking coal into the bed from which the weakly or non-caking coal is gradually discharged, until the bed consists entirely of the strongly caking coal.  The fluidizing gas may be air, and the original bed may be established at ambient temperature and then heated to 400 DEG  to 460 DEG  C.