baber/WOPTO huggingface dataset:
Patent GB-164418-A (GB)
Title: Improvements in and relating to centrifugal separators and the like
IPC: B04B1/14
Filed: 1920-02-04
Abstract: 164,418. Imray, O., (Mauss, W.). Feb. 4, 1920. Density separators; charging.-A batch of mixture is treated in a centrifugal separator which separates fully the solids from the major part ot the batch and partially from the remainder, the liquid, the fully separated solids, and the partially separated remainder being separately discharged from the apparatus. The apparatus shown comprises a drum composed of a number of separable sections 1, 2, 3, 4 of conical form, which are pressed apart axially by springs 10 and are held together by a toggle-link 8, 9, which is controlled by a rod 16 movable axially by the piston 17 in a cylinder 20. The mixture is introduced through a pipe 32 and the solids are deposited in the spaces 22, 22a. The liquid escapes by way of the channel 33 at the upper end of the drum. After running the machine until a certain amount of solid is deposited in the chamber 22<a>, the supply is stopped and the drum sections separated. The fully separated solids escape to the chamber 24 and outlet 25, the partially separated solids and liquid in the chamber 22a escape to the launder 27, where they may be inspected, and pass to either the chamber 24 or back to the supply vessel bv way of the two-way valve 28. A slow-driven drum 38 is arranged to control the supply valve 31 and the discharging cylinder control valve 21 by means of tappets 39, 42 adjustably spaced in grooves on the drum 38.
Patent GB-1299311-A (GB)
Title: Method and apparatus for producing a mixture of gas and anaesthetic vapour
Inventor: EICHELMAN FRANCIS J
IPC: A61M16/18
Filed: 1970-01-23
Abstract: 1299311 Anesthetic apparatus CHEMETRON CORP 23 Jan 1970 [27 Jan 1969] 3478/70 Heading A5T [Also in Division F2] A mixture of a gas and the vapour of a liquid anesthetic is formed by passing a stream of gas through a vapourising region which communicates via a conduit with a liquid anesthetic reservoir, said gas stream not being passed through the reservoir, and by admitting pressurised gas to the reservoir at a point below the liquid surface to force the liquid anesthetic through the conduit, which also has one end below the liquid surface. The conduit preferably includes a section of capillary size with an internal diameter of about 0.007 inch. In a first mixture producing apparatus, Fig. 1, pressurised gas passes via a diaphragm type regulator 24 into an anesthetic reservoir 14 sealingly engaging a member 68. Further pressurised gas from the same or a different source, passes via a conduit 16 into a vapourising chamber 12 to a region therein below a porous metal divider plate 64. Liquid anesthetic passes via a conduit 20 and drip guide 58 onto the upper surface of plate 64 becoming vapourised and mixed with gas passing through plate 64, the mixture passing via a back pressure regulator 26 to a closed or open-circuit anesthetic mixture utilizing apparatus. A bleed conduit 54 between reservoir 14 and chamber 12 relieves excess pressure in reservoir 14 due, for example, -to a temperature rise. A conduit 53 between chamber 12 and regulator 24 compensates for minor pressure changes in chamber 12. A metering valve (96), Fig. 2 (not shown), may be introduced in the liquid flow conduit between the reservoir and vapourising chamber for controlling liquid flow rate, and the back pressure regulator may be omitted if the utilising apparatus is of a type which will maintain a constant pressure in chamber 12. In alternative apparatus, Figs. 4-7 (not shown) and Fig. 3, pressurised gas passes via a regulator 228, valve. 230 and conduit 182 into a reservoir 144, liquid anesthetic passing therefrom via a filter (192), Fig. 6, and a capillary tube (184) located within a tube 190, onto a porous plate 172 in a vapourising chamber 142. Gas from the same source passes via a valve 232 into the chamber 142, a gas/ vapour mixture passing via a conduit 150 and back pressure regulator 248 to utilisation apparatus. A differential pressure meter 252 indicates liquid anesthetic flow rate through tube (148). The valve 230 is a shut-off valve and valve 232 is a throttling valve, both valves being controlled by a single rotary member 244 in a dual valve 234, a member 240 being pre-adjusted so that both valves close simultaneously.
Patent GB-1167758-A (GB)
Title: Improvements in Fluid Control Valves
IPC: F02D1/00
Filed: 1967-01-24
Abstract: 1,167,758. Valves. ROBERT BOSCH G.m.b.H. 24 Jan., 1967 [25 Jan., 1966], No. 3516/67. Heading F2V. [Also in Division F1] A valve 23 controlling a fluid motor 11, 12 is biased to a normal neutral position by two springs 24, 25. The valve is actuated by a solenoid 26 in opposite directions to supply or exhaust the motor from a pump 33 or to drain 18, and thereby control the diesel engine fuel injection pump 14. A movable abutment 36 for the spring 24 is normally kept in the inactive position shown, against the bias of a third spring 38, by the energization of a solenoid 37 in circuit with a battery 40. Failure of the voltage or the opening of an ignition switch 39 causes the valve to exhaust the motor 11 and shut off the fuel pump. In a modification, Fig. 2 (not shown), the fluid motor is double-acting and the return spring 17 for the piston (12) is omitted. In another embodiment, Fig. 3 (not shown), the piston motor 11, 12 is replaced by a diaphragm motor (59) and the spool valve 23 is replaced by two poppet inlet and exhaust valves (63, 62) on the diaphragm chamber. These valves are closed by springs (64, 65) and operated through a rocking lever (72) by a solenoid (66). The exhaust valve (62) can be opened by a rod (74) normally kept inactive against a third spring (78) by the solenoid (37) in circuit with the battery and ignition switch (40, 39).
Patent GB-1381166-A (GB)
Title: Direct chill continuous casting of ingots
IPC: B22D11/049
Filed: 1972-01-25
Abstract: 1381166 Continuous casting ALCAN RESEARCH & DEVELOPMENT Ltd 25 Jan 1972 [27 Jan 1971] 3534/72 Heading B3F A continuous casting 12 (e.g. of Al), emerging from a horizontal or vertical mould 10, is cooled at a relatively low rate in a zone 28, extending from the mould to a position no more than a quarter of the casting width from the end of the molten core 26, by coolant applied to the surface (possibly at different vertical positions), whilst in a second zone 30 extending from that position, further coolant is applied at a higher rate to cause rapid cooling in the region surrounding the end of the core. In the first zone, coolant (water) may be applied from a jacket 15 around the mould. It may mix with air from a manifold 58, Fig. 2, to discharge as a mist of droplets. In either case, part of the water turns to steam on the casting and delays cooling. The cooling intensity is controlled by adjusting the air supply to the manifold 58 in the second embodiment. In another embodiment, the casting is lowered through water in a pit and in the second zone a water ring (like the ring 32 in Fig. 1) causes water to contact the casting surface, while steam forms a barrier around the casting in the first zone. A stream of water is delivered intermittently to the casting surface in the first zone in another arrangement, Fig. 3 (not shown). A timing device supplies air or water, at intervals, to holes (84) in a surface (75) over which cooling water flows and diverts the latter to a surface (81) which guides it against the surface of the casting emerging from the mould (64).
Patent GB-1236904-A (GB)
Title: Improvements in sanitary products
IPC: A61F13/15
Filed: 1969-01-22
Abstract: 1,236,904. Laminates. CELANESE CORP. 22 Jan., 1969 [22 Jan., 1968], No. 3555/69. Heading B5N. [Also in Division A5] A laminar structure useful as or for making articles for absorbing liquid body discharges, e.g. sanitary napkins, bandages, diapers or dress shields, comprises an absorbent non-woven web 2 of cellulose fibres, a moisture-permeable layer of aligned staple fibres attached to and covering one surface of said web and a moisture-impermeable film 15 attached to and covering the other surface of said web, said structure having channels 18 in the face comprising the layer of aligned staple fibres, which channels extend into web 2, run across the direction in which the staple fibres are aligned and are spaced apart by less than the average length of the staple fibres each of which is thus distorted by at least one of the channels, the bottom of each channel containing a thermoplastic resin which permeates adjacent fibres of said non-woven web, and thereby attaches the layer of aligned staple fibres to said web and which is insoluble in water at the pH of the body liquid to be absorbed but soluble in water at higher or lower pH values. The non-woven web may be made from wood pulp or cotton linters and may be formed by carding, garnetting or dry deposition. The staple fibres may be of rayon, cotton, cellulose acetate or mixtures thereof. Specified thermoplastic resins are copolymers of acrylic or methacrylic acid with an alkyl acrylate, e.g. methyl methacrylate, polymeric carboxy ester lactones, styrene-monoethyl maleate copolymers, poly- N,N<SP>1</SP>-diethyl acrylamide and copolymers of an aminoacrylate, e.g. dimethylaminomethacrylate with an alkyl acrylate, e.g. ethyl acrylate. The film may be made by casting one of the above resins. The channels, which may be made by cameo or intaglio printing rollers, may be parallel to each other and perpendicular to the direction of the aligned staple fibres; alternatively, the channels may form a criss-cross pattern. The structure may be made by joining layer 1 to layer 2 in the nip between rubbersurfaced roller 6 and cameo roller 4 having projections 5 jutting therefrom in a regularly spaced pattern, said cameo roller being fed with resin solution by roller 8, drying the product in oven 10 and bonding it in the nip of rollers 11 and 12 to a film 15 coated with resin solution 19
Patent GB-309440-A (GB)
Title: Improvements in scouring device
IPC: A47L13/06
Filed: 1929-02-04
Abstract: 309,440. Metal Textile Corporation, (Assignees of Mayer, D. J.). April 10, 1928, [Convention date]. Scrapers, pan and like.-A scouring pad consists of metallic strip material looped upon itself, the centre parts of the loops being bunched together and secured to form a consolidated head from which the free loop ends radiate in all directions to form a spheroidal body. The material may either be as shown in Fig. 8 or may have a strand or core f of flexible wire or textile yarn as in Fig. 9. The apparatus used is shown in plan in Fig. 1. The material is wound on spaced bars 1 and is pushed between members 2, 5, the member 2 terminating in a curved end 3, slotted at 4, and the member 5 having a slot 5<1> to accommodate a slider 6, which has a knob 7 for manipulation, and has a slot 8 in its front curved end to correspond with the slot 4. After the material is pushed between the members 2, 5, the slider 6 is placed in position and slides the material off the bars 1, the centres of the loops being received and compacted between the slider 6 and the curved part 3. A binding wire is inserted through the slots 4, 8. When removed, the loops radiate in all directions from the bunched centre. When the material shown in Fig. 9 is used, the material coiled on the strand f is stretched at the centres of the loops on the bars 1, to reduce the amount of material gathered into the centre of the ball.
Patent GB-754226-A (GB)
Title: Improvements in or relating to a frequency-changing mixing circuit embodying a self-oscillating triode with intermediate-frequency feed-back
IPC: H04B1/16
Filed: 1954-02-09
Abstract: 754,226. Superheterodyne circuits. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 9, 1954 [Feb. 12, 1953], No. 3862/54. Class 40 (6). In a frequency-changer comprising a selfoscillating triode provided with negative feedback at intermediate frequency to reduce the damping on the I.F. circuits, the negative feedback path is connected to the grid end of the high-frequency input circuit. A number of embodiments, are described in the Specification. In one, Fig. 2, a signal input circuit 2 is coupled to the centre of a reaction coil 4, the reaction circuit being balanced by means of a condenser 5. The coil 4 is back-coupled to a tuned anode circuit 3 fed in parallel with the I.F. transformer 6. I.F. current feedback is produced by connecting a resistor 9 in series with the transformer primary and providing a back-coupling path to the common point of blocking condensers 10, 11 which are in the grid circuit. The condensers 10, 11 may alter. natively be connected between the circuit 2 and the tap on coil 4, Fig. 3 (not shown). In other embodiments the oscillator circuit is of the Hartley (Fig. 4, not shown) or grounded grid (Fig. 7, not shown) type, or comprises a valve with a capacitive impedance in the cathode circuit (Figs. 5, 6, not shown).
Patent GB-474335-A (GB)
Title: Improvements in navigation instruments
IPC: G01C21/02
Filed: 1937-02-09
Abstract: 474,335. Calculating - apparatus. WHITE, N. N. SINITZIN-, SOLOVIOFF, N. N., and GLOVER, J. L. Feb. 9, 1937, No. 3881. Convention date, Feb. 24, 1936. [Class 106 (i)] A device for use in solving problems in navigation and nautical astronomy comprises a frame, a disc rotatably mounted on said frame, a slide radially movable on the disc and a member or members movable transversely on the said frame. The principle underlying the invention will be understood by reference to Fig. 6, in which the upper circle represents the projection of a celestial sphere on the horizontal plane and the lower circle represents a projection on the vertical plane, the circle being the observer's meridian and the line N, S the horizon. Assuming that the altitude and azimuth are to be determined from the known factors declination, hour angle, and latitude of observer ; the declination is represented by the angle dOS and the hour angle by the angle TOS<1> and the position of the body will be represented by the points a, a<1>. A line is drawn from O through a to A and this line OA is rotated through an angle representing the co-latitude, i.e. 90‹-L to the position OB, the point b on the line OB being at the same radius as the point a on the line OA. The point b is then projected on to the projection of the small circle through the point a<1> on the horizontal plane to give the point b<1>. A line hh parallel to the horizon NS is drawn through the point b, the angle NOh gives the altitude and the angle N<1>OZ gives the azimuth. Referring to Fig. 7, the circles represent the same projections as in Fig. 6 and the points are determined by the movement of slides 1-1, 2-2, 3-3, V<1>-V<1>, V<2>-V<2>, and V<3>-V<3>. In Fig. 8, the circles are superimposed to. show how the apparatus functions. A constructional form of apparatus is shown in Figs. 1 and 2 and comprises a frame 10 supporting a rotatable disc 11, a slide 14 radially movable in a slot in the disc, and slides 23, 29 movable along slots 22, 28 formed in the frame. The edge of the disc has a vernier scale 17 co-operating with sets of graduations 19, 20, 21 on a top plate 18 representing declination and altitude, hour angle, and azimuth respectively. The slide 14 has marked thereon a radial line 15 with an intersecting index 16, the slides 23 are connected by a transparent member 24 marked with an index line 25 and carrying a cursor 26 with an index line 27, and the slides 29 are connected by a member with an index line 30. The disc 11 is also formed with a recess 29<1> marked with a vernier scale 30<1> for co-operation with a latitude scale on a lower disc 31. A simplified form of apparatus is shown in Figs. 3 to 5 wherein a disc 34 is mounted in a recess of a casing 33 and carries a radially movable slide 37. A transparent slide 43 with an index line 44 is arranged over the disc and is slidable transversely of the casing. In this form, the disc 34 and slide 37 are also transparent to render visible series of curves 45, 46 for reading the hour angle and azimuth.
Patent GB-457543-A (GB)
Title: Improvements in and relating to the determination of the sex of eggs of fowls
IPC: B66C23/30
Filed: 1935-02-08
Abstract: 457,543. Testing eggs; determining sex. RAMS, P., R³ddel, near Neustadt-on- Wied, and TOLLNER, A., Cronenberg, Wuppertal, both in Germany. Feb. 8, 1935, Nos. 4085 and 4086. Void [Abridged as open to inspection under Sect. 91 of the Acts, March 16, 1936]. [Class 28 (ii)] The sex of eggs is determined by placing the eggs in a vertical position, preferably with the pointed ends upwards, in a dark space and illuminating from below with a light intensity of 40-100 candle power, the male eggs showing a dark and a bright part while the female eggs show either a dark or a bright part. The testing is carried out in a box a having mirrors or other reflecting surfaces on the inside walls, and enclosing a light source d which is vertically and horizontally adjustable from outside the box. The intensity of the light is also adjustable as by means of a series resistance q or by the provision of a number of lamps adapted to be switched on separately. The upper cover s of the box is apertured for the reception of the eggs, and over the cover is a sheet of rubber formed with smaller apertures so that the eggs are supported in a light-tight manner. A frame u comprising a number of separate cells is supported above the cover s, and the inner walls of the cells are blackened to avoid interference.
Patent GB-180728-A (GB)
Title: Improvements in shuttle actuating or picking mechanism for looms
IPC: D03D49/24
Filed: 1921-07-14
Abstract: 180,728. Perks, T. July 14,1921. Picking-motions. -In overpick looms 8 having means for putting the picking-motior into and out oi action as required the hub 5<a> of the picking-cone 4 is mounted loosely or the vertical picking-shaft 2, tc which is pivoted a pawl or coupling member 6 adapted to engage a part 5<b> on the hub when a pick is to be made. The coupling-member 6 has two arms s, which span an enlarged part w of the picking-shaft, and it is under control of a vertically sliding rod 7 having an incline 7<a> in the path of a projection on the coupling- member. When the rod 7 is lowered through lever mechanism actuated by a pattern-controlled rod 12, the coupling-member 6 engages the hub 5a and picking is effected. When it is desired to lag back, the rod 7 is raised through a hand-controlled rod 15. The part 5<b> of the hub that engages the member 6 is made of hard steel and is bolted to the hub to facilitate renewal.
Patent GB-1176205-A (GB)
Title: Room Temperature Curing Organopolysiloxane Elastomers
IPC: C08G77/38
Filed: 1967-01-30
Abstract: 1,176,205. Organopolysiloxanes; N,N - dialkylaminoxycyclotetrasiloxanes. STAUFFER CHEMICAL CO. 30 Jan., 1967 [3 Feb., 1966], No. 4363/67. Headings C3S and C3T. An organopolysiloxane has the formula in which n is an integer sufficient to yield a viscosity of 500 to 500,000 centipoises at 25 C.; R is a monovalent hydrocarbon, halohydrocarbon or cyanoalkyl radical; R<SP>1</SP> is H, or a C 1-4  alkyl or haloalkyl radical. In preferred polymers R is methyl, R<SP>1</SP> is ethyl and n is 5- 9000. The polymers are useful in moisture curable compositions which may contain conventional fillers. The polymers are prepared by reacting a 2,4,6,8-tetraalkyl-tetra-(N,N-dialkylaminoxy)-cyclotetrasiloxane (I) with an OH- terminated organopolysiloxane. I are claimed per se, especially where the first alkyl group is methyl and the second ethyl. They may be prepared by reacting 2,4,6,8-tetramethylcyclotetrasiloxane with a dialkylhydroxylamine.
Patent GB-577620-A (GB)
Title: Improvements in and relating to the manufacture of paper
IPC: D21H17/50
Filed: 1944-03-09
Abstract: A dry paper web is tub-sized in a paper-making machine with a freshly-mixed, cold solution of urea, formaldehyde and aluminium sulphate, e.g. in proportions 5 : 5 : 1, and heated as by rollers to 100 DEG  C. or less to dry the paper and harden the synthetic resin.
Patent GB-879461-A (GB)
Title: Improvements in post pallets
IPC: B65D19/38
Filed: 1957-02-09
Abstract: 879,461. Stacking pallets. WILLIAMS, S. E. Feb. 10, 1958 [Feb. 9, 1957], No. 4490/57. Class 78 (4). [Also in Group XXXII] A pallet has an upper frame 2 and a lower frame 3 held in spaced relation by uprights 1 provided at one end with cups 4 to enable pallets to be stacked. To render individual pallets mobile they are provided with wheel supports 6 and castors 8 secured at the mid points of the sides and the ends of the lower frame 3.
Patent GB-113700-A (GB)
Title: Improvements in Apparatus for Filling Material from Bulk into Sacks, Casks or other Receptacles.
Inventor: JONES JOSEPH
IPC: B65B37/02
Filed: 1917-03-29
Abstract: 113,700. Jones, J., and Jones, J. E. March 29, 1917. Elevated structures. - An apparatus for bagging grain, nuts &c., consists in providing, in combination with the hoisting gear of a ship, warehouse &c., an elevated bin A which is mounted on a movable carriage B and which is adapted to receive all the material discharged into it by the bucket of the hoisting gear. The bin is formed with an orifice D through which the produce is discharged by gravity into the sacks or bags. The orifice may be closed by a hand-controlled sliding-valve E and the bottom of the spout may slope more than the floor of the bin. A platform X for an attendant may be provided. The bag may stand on the platform of a weighing- machine which closes the valve when the required weight is reached.
Patent GB-452112-A (GB)
Title: Dustfilter against poisonous dusts
IPC: G03D5/00
Filed: 1935-02-12
Abstract: 452,112. Gas - filters. CORI, B., 9, Meinekestrasse, Berlin. Feb. 12, 1935, No. 4532. Convention date, Feb. 13, 1934. [Class 8 (ii)] [See also Group VI] The edges of a pleated fabric filter 2 for use in gas masks, or otherwise, are embedded air-tight in its moulded &c. casing 8 during the formation of the casing. The filter may be held in shape between oppositely notched blocks, from which the edges protrude, the casing being moulded &c. around the blocks.
Patent GB-655685-A (GB)
Title: Improved hydrocarbon synthesis
IPC: C07C1/04
Filed: 1948-02-16
Abstract: In the synthesis of hydrocarbons from carbon monoxide and hydrogen in contact with a dense fluidized iron catalyst a hydrogen partial pressure, including that of fresh and recycled gas, of 150-275 pounds per square inch is maintained at the point of entry to the reaction zone, a total pressure of above 350 but below 800 pounds per square inch, a temperature of 650-725 DEG  F., and a total gas feed rate of fresh and recycled gas of substantially 10-200 standard cubic feet per pound catalyst per hour.  Operating conditions are such as to give minimum yields of 190, preferably 200 c.c., of butane and higher per cubic meter CO and H2 consumed.  The catalyst may be of the synthetic ammonia or pyrites ash type, or reduced red iron oxide.  A ratio of CO : H2 of 1 : 1 or 1 : 2 may be used in the fresh feed. In an example, the effect of high hydrogen partial pressure in retarding carbon formation on the catalyst is shown. Specification 593,940 is referred to.  The Specification as open to inspection under Sect. 91 comprises the use of other synthesis catalysts such as cobalt or nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-1287215-A (GB)
Title: Production of benzoin ethers
IPC: C07C45/71
Filed: 1970-01-30
Abstract: 1287215 Benzoin ethers BADISCHEANILIN- & SODA-FABRIK AG 30 Jan 1970 [31 Jan 1969] 4546/70 Heading C2C Benzoin ethers are obtained by reacting a benzoin with a secondary alcohol in the presence of hydrogen chloride. Examples are given which illustrate the process.