baber/WOPTO huggingface dataset:
Patent GB-457604-A (GB)
Title: Improvements in and relating to paper sacks
IPC: B65D33/26
Filed: 1935-02-27
Abstract: 457,604. Paper sacks. PAPER SACKS, Ltd., 1, Redcliffe Street, Bristol, and RAWLINS, J. D., 1, College Court, Hammersmith, London. Feb. 27, 1935, No. 6242. [Class 94 (ii)] A multi-ply paper sack a has incorporated in the mouth of the bag structure, prior to closing, an anti-slip surface, e.g. a crÛpe paper sleeve j, to provide frictional resistance to relative movement of the sides of the sack end during machine stitching of a closing seam across the mouth. The sleeve j may be stitched at k to the plies.of the sack and covered by an end reinforcing strip at the mouth i<1>, also held in place by the stitching k. Alternatively, stapling or adhesive may be employed in this connection. The anti-slip surface may comprise roughening the surface of the inner paper ply itself, or indenting the same, or attaching thereto a separate roughened surface or surfaces. The anti-slip surface or surfaces may be incorporated in a web from which the bag tube blanks are severed.
Patent GB-537764-A (GB)
Title: Improvements in rotary cutting tools such as circular saws
IPC: B23D61/04
Filed: 1940-04-06
Abstract: 537,764. Saws. KNOWLSON, R. F. April 6, 1940, No. 6260. [Class 145 (ii)] [Also in Group XXII] Saws have tooth-tips 2 of tungsten carbide or like hard metal brazed into recesses 3 formed by thinning the teeth. Recesses for alternate tips are on opposite sides of the saw and the tips may either extend over the full tooth width, Fig. 1, or over slightly more than half the tooth width, Fig. 2.
Patent GB-491507-A (GB)
Title: Improvements in or relating to the lubrication of sewing machines
IPC: D05B71/00
Filed: 1937-03-03
Abstract: 491,507. Lubricating sewing-machines. UNION SPECIAL MACHINE CO. March 3, 1937, No. 6266. Convention date, April 4, 1936. [Class 12 (iii)] [Also in Group VII] A force-feed lubricating system for sewing- machine comprises a pump 40 which delivers oil in excess into a pressure chamber 51 from an oil reservoir 30. The pressure chamber 51 communicates with the moving parts of the machine to be lubricated, and the excess .oil returns to the reservoir 30 through a pipe 75 fitted with a sight glass. As shown, the reservoir 30 is suspended from the bottom of the table 3 by clips 32 so as to be easily detachable, and has a strainer partition 38. The pump plunger 40 is driven by a cam 46 on the main driving shaft 9. Oil from the pressure chamber 51 flows through an axial bore in the shaft 9 and through annular channels and radial ducts to lubricate the various eccentrics and bearings associated with the shaft 9. The annular oil channels 62 in the eccentrics are eccentric to the axis of the shaft 9. Oil draining from the machine runs into a pan 35 and through a drain pipe 36 fitted with a strainer 39. Specification 327,296 is referred to.
Patent GB-1551911-A (GB)
Title: Apparatus for the gassing of liquids
IPC: B01F13/00
Filed: 1978-02-17
Abstract: The appliance has a gas introduction device which is arranged in a basin (2) below the liquid level. Means are further provided which return the gas above the liquid level into the liquid. The basin (2) is covered with an inflatable sheet (1) which automatically adjusts to the gas volume at any time above the liquid level. The edge of the sheet is set in a gastight manner with elongate floats (3). The floats (3) are provided with a skirt (5) together with a weight (6). This results in reliable sealing in conjunction with a light construction, and access to the space below the sheet remains possible. <IMAGE>
Patent GB-548332-A (GB)
Title: Production of alumina from clay or other aluminous ore
IPC: C01F7/164
Filed: 1941-05-21
Abstract: 548,332. Aluminates, alumina. STEIN & CO., Ltd., J. G., and HYSLOP, J. F. May 21, 1941, No. 6509. [Class 1 (iii)] Alumina is obtained from clay &c. by treating it in known manner to produce aluminium sulphate solution and silica, adding calcium carbonate to the solution to produce a mixture of aluminium hydroxide and calcium sulphate, adding raw clay and anhydrite to the mixed precipitate, heating this mixture to 1100C. to 1550C. to form calcium aluminate and dicalcium silicate, leaching the resulting clinker with alkali carbonate to give a solution of alkali aluminate and obtaining aluminium hydroxide therefrom in known or suitable manner. Reducing agents may be employed. in the roasting step to accelerate the reaction.
Patent GB-843693-A (GB)
Title: Improvements in or relating to pyrazolone derivatives
IPC: C07D401/04
Filed: 1958-02-28
Abstract: The invention comprises 3-phenyl -p-chlorophenyl and -p-tolyl-4-prop-2-ynyl- and 3-phenyl-4 - benzyl - 1 - (N - methylpiperidyl - 41) - pyrazolone-5 and their mono- and diacid addition salts, the preparation of pyrazolone derivatives of the general formula:  <FORM:0843693/IV(b)/1> (wherein R represents prop-2-ynyl or benzyl and R1 represents phenyl which may be substituted by halogen (e.g. chlorine or bromine) or by an alkyl group of up to 4 carbon atoms) by condensing N-methylpiperidine-4-hydrazine with a compound of the general formula:  <FORM:0843693/IV(b)/2> (wherein R1 is hydrogen, methyl or ethyl), and the conversion of the products into salts with mono- or di-basic acids (e.g. hydrochloric, hydrobromine, sulphuric, citric, benzoic, tartaric, oxalic, succinic, maleic, acetic, naphthalene -1:5-disulphonic or hexahydrobenzoic acid.)  Examples describe the preparation of the four specific compounds enumerated above, which are useful for the same purposes as the products of the parent Specification.
Patent GB-1216267-A (GB)
Title: Improvements in or relating to presses
Inventor: HAMILTON ERIC
IPC: B21D24/12
Filed: 1968-02-09
Abstract: 1,216,267. Capping. WILKINS & MITCHELL Ltd. 27 Jan., 1969 [9 Feb., 1968], No. 6600/68. Heading B3Q. [Also in Division F2] In a drawing press in which a blank is gripped by a blank holder before a die engages the blank and is held until the die is disengaged from the deformed blank, means for operating the blank holder and die slides comprises a straight mandrel 23 supported on a fixed part 10 of the press, a first eccentric 31 rotatable about the axis of the mandrel, a first strap 33 embracing the eccentric 31, a connecting rod 37 between the strap and the die-slide, a link 43, Fig. 2, between a fixed axis and the strap, a second eccentric 45 rotatable about the mandrel's axis, a rockshaft 50 having an arm 49, a second strap 46 embracing the eccentric 45 and connected to the arm 49, linkage 52, 56 and (58, 59), Fig. 3 (not shown), between the rock shaft 50 and the blank holder slide, and means for driving the eccentrics. In the example, two parallel mandrels 23 each operate a connecting rod 37 for the die-slide and a pair of connecting rods 56 for the hold-down slide. Drive for the press is through a clutch 15 and a flywheel 15a to a shaft 13 having a brake 16. A pinion 17 on shaft 13 drives one of a pair of meshing gears 18 each of which drives one of a pair of shafts 19 having pinions 21, 22 driving gears 25, 26 on the mandrels. The first eccentric 31 and a pair of second eccentrics 45 are integral with the gear 25 and mounted on bearings 28 on the mandrel 23, or the eccentrics may be separate parts of different diameters connected by dog teeth. Bearings 32, 45 on the eccentrics carry the strap 33 and a pair of second straps 46. The hold-down links 52 are mounted in bearings 53 on the mandrel. Each mandrel may have an integral or separately-made gear and eccentric unit (79), Fig. 4 (not shown), for operating two die-slide connecting-rods (78, 83) and one hold-down connecting-rod. The gear is located next the second eccentric (85) and between the first eccentrics (75, 80). Instead of the mandrels remaining stationary they may be keyed to the eccentrics, the second eccentrics may be fixed to the ends of the mandrels outside of the press-frame, and if the mandrels rotate they may operate mechanism for feeding blanks into and out of the press.
Patent GB-1486842-A (GB)
Title: Apparatus for use in the manufacture of electric storage batteries
IPC: H01M50/10
Filed: 1975-01-10
Abstract: 1486842 Seaming non-metallic sheet material LUCAS BATTERIES Ltd 10 Jan 1975 [15 Feb 1974] 6984/74 Heading B5K [Also in Division H1] Apparatus for use in the manufacture of electric storage batteries comprises a base 12 to support a thermoplastic battery box 13, a die part 21 carried by a support member 26 and adapted to receive a thermoplastic auxiliary member 15, Fig. 3, to be secured to an external wall 14 of the box 13, means 24 for moving the part 21 linearly relative to the member 26 towards and away from the base 12 and in a first direction parallel to the base 12, a heater 33 carried by the member 26 and movable in the first direction, and means 28 for moving the heater 33 linearly relative to the member 26 in a second direction perpendicular to the first direction and into the path of movement of the part 21, the arrangement being such that, in use, to seal the member 15 to the wall 14, the member 15 is moved with the part 21 into engagement with the heater 33 and the heater 33 is moved into engagement with the wall 14, whereafter the heater 33 is withdrawn so that the heated portions of the member 15 and the wall 14 can be pressed together. The member 15, Fig. 3, has a comb-like projection 17 to be secured to the wall 14 and around which a channel 18 and a peripheral skirt 19 extend, molten material from the projection 17 and the wall 14 flowing into the channel 18 during sealing. In operation, the box 13 is clamped on the base 12, the member 15 is engaged in a cavity 22 in the part 21 and a piston-and-cylinder arrangement 28 moves the heater 33 upwardly until further movement is limited by a stop 34. A piston-and-cylinder arrangement 24 moves the part 21 until the projection 17 engages the heater 33 and further movement causes the heater 33 and a piston 32 on which it is mounted to move relative to the support 26 until a projection 35 on the heater 33 engages the wall 14. After melting of the surfaces contacting the plate 33, the part 21 is retracted and the piston 32, of a piston-and-cylinder arrangement 31 retracts the heater 33. The arrangement 28 lowers the heater 33 and then the arrangement 24 is re-operated to move the melted projection 17 into engagement with the melted portion of the wall 14. The part 21 is retracted after solidification of these melted portions. The position of the member 26 is adjustable by a hand wheel 36 to alter the position, relative to the base, at which the member 15 is sealed to the wall 14. A further heater and die part carried by a further support may be provided to seal a second auxiliary member to a wall opposite to the wall 14.  The member 15 may provide means for mounting the battery box on a road vehicle or may provide a lifting device.
Patent GB-1462791-A (GB)
Title: Method and apparatus for recording video information
IPC: G11B7/24
Filed: 1974-02-15
Abstract: 1462791 Television recording and playback MCA DISCO-VISION Inc 15 Feb 1974 [20 Feb 1973] 7021/74 Heading G5R A video recording made by a modulated laser beam is read by a second laser beam distinguished from the recording beam by having a different wavelength. As shown, a beam 40 from an argon ion laser 30 is modulated by video signals in a Pockels cell 32 and passes via a Glan prism 38 and a microscope objective lens 14 on an air bearing 16 to melt a pattern of holes in a bismuth film on a rotating record disc 18. A lower-power HeNe laser 52 sends a reading beam 54 through the same lens 14 at an angle to the recording beam so as to read the record about 2 Ám. downstream of the recording spot. A filter 66 stops any of the argon ion recording beam that may have been reflected from the record with the reading beam. The path of the reading beam includes a polarizing beam-splitter 56 and a quarter-wave plate 62, as described in Specification 1,462,792.
Patent GB-1121250-A (GB)
Title: Selective dehalogenation of dihaloacylacetamides
Inventor: BIRTWISTLE JAMES SANDERSON
Filed: 1967-02-14
Abstract: Selective dehalogenation of a compound of the formula <FORM:1121250/C2/1> where each R is hydrogen or an alkyl group of 1 to 4 carbon atoms and each X is chlorine or bromine to give a 2-monohaloacylacetamide of the above formula wherein one X is a hydrogen atom by reacting the above 2,2-dihaloacylacetamide with a salt of a transition metal that is vanadium, chromium, manganese, iron, titanium, mercury, cobalt or copper, capable of forming cations of different valency, the cation acting in the lower valency state, in the presence of a protonic liquid.  The transition metal cations in reduced lower valency form, i.e.Cu+, V++, Cr++, Mn++, Fe++, Ti++, Ti+++, Hg+ and Co++, are preferably introduced in at least stoichiometric amount as salts (e.g. halide salts wherein the halide is the same as the halogen of the di-halo-acylacetamide) which are soluble to some extent in the protonic liquid even when the cation is oxidized to the higher valency form.  According to a further feature of the invention the process may be carried out catalytically in the presence of a reducing agent in which case less than stoichiometric amounts of either the reduced or oxidized cations are used, the oxidized cation being reduced in situ by the reducing agent. The preferred protonic solvent is water optionally mixed with alcohols or carboxylic acids depending on the solubility characteristics of the particular dihalo-acylacetamide and transition metal salt. If desired, the reaction mixture may also include an essentially water immiscible inert solvent such as a halogenoalkane for the selective removal of the desired monohalo-acylacetamide product. Suitable reducing agents which do not cause undesirable side reactions include sulphite, bisulphite, thiosulphite and sulphide ions as well as alkali and alkaline earth metals, tin, zinc or magnesium. The preparation of N-methyl-2-chloroacetoacetamide by treating the corresponding 2,2-dichloro compound with excess cuprous chloride, catalytic amounts of cuprous chloride in the presence of sodium bisulphite or sulphur dioxide, and a mixture of vanadous and chromous chlorides in the presence of sodium bisulphite is described. N-ethyl-, N-butyl-, N,N - dimethyl - and N,N - diethyl - substituted 2-chloro-acetoacetamides are prepared by the action of cupric chloride or sulphate in the presence of sodium bisulphite, metabisulphite or thiosulphate on the corresponding dichloro compound.  Numerous other N-substituted-2-monohaloacylacetamides are mentioned.
Patent GB-389981-A (GB)
Title: Improvements in or relating to fuel pumps for the injection of fuel into internal combustion engines
IPC: F02M59/44
Filed: 1932-03-09
Abstract: 389,981. Fuel-injection pumps. EVANS, A. F., 2, Castleton Mansions, Castelnau, Barnes, London. March 9, 1932, No. 7048. [Class 102 (i).] In a fuel-injection pump of the type described in Specification 298,257, [Class 102 (i), Pumps &c.], in which a cylinder 6 and plunger 8 reciprocate oppositely, a number of pump units are employed and the cylinders and plungers are operated directly by cranks or eccentrics on the shaft 5. Each cylinder is operated by two eccentrics 18 at the sides of the plungeroperating eccentric 14. The latter may be weighted to balance the weight of the cylinder, or, alternatively, the cylinder eccentrics may be of aluminium. The cylinder gudgeon-pin 21 is perforated for the passage of the plunger. In order to adjust the timing an axiallyadjustable rod 37 has axial splines 38 engaging the interior of the shaft 5 and helical splines 36 engaging the interior of the driving shaft 32. A wall 2 separates the actuating chamber from the suction chamber 3. Each pump has an axially-adjustable or rotatable sleeve 25 controlling the suction ports 23 and the relief ports 24.
Patent GB-1086921-A (GB)
Title: Dishwashing apparatus and method
IPC: A47L15/44
Filed: 1965-02-18
Abstract: 1,086,921. Dishwashing machines. HOBART MANUFACTURING CO. Feb. 18, 1965 [Feb. 20, 1964], No. 7083/65. Heading A4F. Dishes are washed by spraying in a closed washing chamber of a dishwashing machine, with a cleaning liquid drawn from a sump by a motor-driven pump, the cleaning liquid is then drained, and fresh water supplied to the sump at a temperature below 180F. whereupon a metered quantity of disinfectant liquid is supplied to the sump to form with the water an effective disinfectant solution which is sprayed over the articles which are then allowed to dry. The cycle of operation is started by manually operating a switch 70 to energize a timer motor 76 through a door actuated safety switch 78. The motor 76 drives cam mechanism to close switches 75b, 75c, 75e to energize a motor PM driving a pump for supplying cleaning liquid to a spraying device, to open a solenoid valve FV1 for admitting hot water to the washing chamber for a predetermined period, e.g. 30 seconds, and to close a solenoid drain valve DV. After the valve FV1 closes the pump motor PM operates for a predetermined time after which the switch 75e opens to open the drain valve DV. Next the switches 75b, 75c, 75d and 75e are all closed to cause the washing chamber sump to be refilled with fresh water, the pump PM to operate again, a solenoid operated metering device to discharge a predetermined quantity of disinfectant into the washing chamber, and a rinsing cycle to be performed.
Patent GB-812190-A (GB)
Title: Improvements in or relating to directional aerial systems
Inventor: PRIVETT ROY FRANK
IPC: H01Q13/06
Filed: 1953-03-13
Abstract: 812,190. Radio direction-finding; aerials. GENERAL ELECTRIC CO. Ltd. March 5, 1954 [March 13, 1953], No. 7091/53. Class 40 (7). [Also in Group XL (b)] A directional aerial system comprises a primary radiator and a secondary radiator, the primary radiator being a device located in the proximity of the focus of the secondary radiator and providing a pair of open-ended waveguides, the open ends of which are facing the secondary radiator, while the device is adapted to supply a difference signal obtained by comparing the signals picked up by the pair of waveguides when the aerial is used for reception. Preferably the primary radiator comprises four waveguides arranged to form a magic T-junction and the secondary radiator is parabolic reflector. Fig. 5 shows a cross-section of one form of the primary radiator wherein a brass block 22 is provided with a polythene insert 21 forming the waveguides. The parts 23, 24 of the insert 21 constitute the openended waveguides so that if A and B represent the signals picked up by these two parts, signals proportional to A-B and A+B are supplied through the parts 25 and 26 respectively. A waveguide having a resistive load may be clamped to the surface 27 to absorb the signal supplied through the part 26, though in practice this additional waveguide is not necessary. An output waveguide is clamped to the top surface to receive the signal from waveguide 25; this output waveguide may be filled with polythene and may pass over the top of the reflector or through an aperture in the reflector to an amplifier and detector. A polythene part 28 attached to the front of the brass block 22 acts as a matching plate between the arms of the waveguide junction and free space. In a modification of this arrangement, Fig. 7 (not shown), the open-ended waveguides are arranged with their broad sides co-planar instead of with their narrow sides co-planar. For direction finding in two phases the primary radiator comprises four open-ended waveguides 41, 42, 43, 44, Fig. 10, which are coupled as shown in Fig. 11, to waveguides 47, 48, 52, which produce outputs proportional to A - B, C - D and (A+B)-(C+D) respectively. The output from waveguide 52 is fed to a first null detector (not shown) and the outputs from waveguides 47, 48 are combined to provide a signal proportional to (A+C) - (B+D) which is fed to a second null detector (not shown). The aerial can be used for transmitting as well as receiving, for example by connecting the transmitter to the waveguide 53 through a T/R switch.
Patent GB-166088-A (GB)
Title: Improvements in and relating to the manufacture of wheel tyres for vehicles
IPC: B60C9/20
Filed: 1920-03-30
Abstract: 166,088. Chick, P. March 30, 1920. No Patent granted (Sealing fee not paid). Tread bands, projections, and surfaces. - The tread parts of tyre covers are reinforced by U- shaped metal staples a made from wire or stamped from metal plate so as to form groups. The staples are inserted in a foundation c, Fig. 1, or f. Fig. 2, and they are embedded in the substance of the tyre cover so that their ends are flush with the surface. A backing may be added as shown at d in Fig. 1, and at g in Fig. 2. In the latter form the backing is wrapped over the bead h of the cover. In another form the tyre cover has a dovetail groove extending round the tread into which layers of balata or other material are packed. The staples are passed through these layers. Reference has been directed by the Comptroller to Specifications 9158/99, 8612/04, 9644/04, 25,652/09, 404/14 and 110,777.
Patent GB-393043-A (GB)
Title: Improvements in or connected with self propelled sewage or other liquid distributingapparatus
IPC: C02F3/04
Filed: 1932-03-10
Abstract: 393,043. Liquid-distributers. JONES & ATTWOOD, Ltd., Titan Works, and MILLS, S. J. S., Grange Lane, both in Stourbridge, Worcestershire. March 10, 1932, No. 7164. [Class 69 (iii).] In self-propelled sewage or other liquid distributing apparatus of the type comprising a water-wheel mounted at the end of the liquid distributing arms and driven by a portion of the liquid under treatment, the water-wheel drives the apparatus by means of a flexible or self-adjusting device which engages the surface of a filter bed or its surrounding wall. According to the construction shown in Fig. 3, the axle 8 of the waterwheel 3 drives by means of a sprocket 7 and an idler sprocket 9, a loose chain 6 which trails on the surface 15 of the filter bed or its wall. In one modification, the idler sprocket may be dispensed with, and the chain allowed to hang as a loose band around the sprocket 7. According to a further modification, the chain may be hung in separate lengths from a wheel mounted on the shaft 8. Fig. 6 shows a construction in which pivoted pawls 6x are mounted on the wheel 7, and Fig. 7 shows another construction comprising a rigid ring 21 connected to the water-wheel shaft 8 by hinged links 19, 20. According to further modifications described the driven wheel carries resilient projections or paddles, loose pins working by gravity in peripheral holes therein, or a multiplicity of light prongs.
Patent GB-1018642-A (GB)
Title: Display box
Inventor: POWELL ALEXANDRA NORAH
IPC: B65D5/355
Filed: 1963-02-22
Abstract: 1,018,642. Display boxes. PROCTER & GAMBLE Ltd. Feb. 22, 1963, No. 7245/63. Heading B8P.  A cardboard display box comprises a front panel 2, a back panel 3, and two side panels 4, 5 perpendicular to a base 1, the front panel being joined to the side panels by gusset folds 49 permitting the front panel to swing outwardly from its position perpendicular to the base to a position inclined at an angle less than 90 degrees to the base. The front panel is extended to form a cover panel 14 held perpendicular to the front panel by a flap adhered to the gusset fold, said cover panel forming the front wall of the box when the panel 2 is swung outwardly. The back panel is extended to form the lid 10 having a further extension 12 and a fold line 50 along which the lid may be folded when used for displaying information such as advertisements. The back panel may also be constructed to swing outwardly either as well as the front wall or instead of the front wall. The side and front panels may also be connected by a sliding tongue and slot connection. The box may be folded flat, after erection, by folding along lines 41, 39, 40; when the box is erected triangular extensions on the back and cover panels 3, 14 are secured to the side panels 4, 5 by stitching, adhesive or adhesive tape.