baber/WOPTO huggingface dataset:
Patent GB-470304-A (GB)
Title: Improvements in or connected with machines for cutting coal or other minerals in mining, quarrying and like operations
IPC: E21C25/64
Filed: 1936-08-07
Abstract: 470,304. Mining &c. machines. MAVOR & COULSON, Ltd., and DAVIES, A. W. Aug. 7, 1936, No. 21760. [Class 68 (i)] A machine for cutting minerals in mines &c. comprises a large diameter, thin grinding disc rotating at high speed and adapted to travel along a bed &c. placed along the face to be cut and adapted to be advanced periodically. A single motor may drive all the parts of the machine. In Figs. 1 and 2, a bed A, adjustably supported by jacks 4 at each corner and carrying a motor-driven winding drum 3, supports a longitudinally movable base 5 carrying a transversely movable slide 6 supporting a pillar 7 on which a collar fitting 8 is vertically movable; a bifurcated arm 9 is rotatable in the collar fitting 8 and supports the grinding disc C which is driven, through gearing 12, 14, by a motor 10 on the collar fitting 8. The disc C may comprise a steel plate with a composition of iron and diamond dust on its periphery. The base 5 is moved along the bed by a rope wound on drum 3, and the bed is moved similarly. The bed may be mounted on skids, rollers or endless tracks. The slide 6 is moved transversely by passing a rope from drum 3 to a sheave 16 to drive screw 17. The collar fitting 8 is raised or lowered by passing the rope round sheave 19 to drive a screw 18 through gearing 20. The arm 9 is rotated by passing the rope round a sheave 21 to act through gearing 22. In Fig. 4, the pillar 7 is omitted and the disc C, driven by motor 26, is adjustably mounted on a shaft 25 carried by a bracket 23 rotatable in bearings 24 on the slide 6. Locking means for the parts may be provided. The longitudinal movement may be effected by a variably driven screw or a hydraulic or pneumatic ram and the transverse movement by swinging the disc in its own plane.
Patent GB-625535-A (GB)
Title: Impeller for centrifugal apparatus
IPC: F04D29/30
Filed: 1947-08-08
Abstract: 625,535. Centrifugal fans. CHESTER, T. Aug. 8, 1947, No. 21786. Convention date, Sept. 20, 1943. [Class 110(i)] Centrifugal fan blades are substantially triangular in cross-section and of an arcuate width between 0.35 and 0.65 of the blade pitch. The rear face 20 at the tip makes an angle not greater than 50 degrees with the tangent and may have a rounded exit corner. The leading surface may be concave and inclined to the radial in either direction. The interblade passages are of substantially uniform width, or slightly: divergent.
Patent GB-1114219-A (GB)
Title: Improvements in or relating to deep-drawn plastic film packaging
IPC: B65D85/32
Filed: 1966-05-17
Abstract: 1,114,219. Plastics cartons. Z. HOHNJEC. 17 May, 1966 [4 June, 1965], No. 21786/66. Heading B8P. [Also in Division E2] A carton (for eggs, fruit &c.) made from deep drawn plastics sheet comprises two halves 1, 2 recessed to accommodate the eggs, fruit &c. joined by a flange 3, each half having projections A, B, which latter form stud and socket fasteners. There may be further projections 27, 28 for transmitting load when filled cartons are stacked. The fasteners A, B may either be press-stud fasteners or else pins making an interference fit in a plain bore. A method of snap release, Figs. 10, 11 (not shown) is also described.
Patent GB-1386219-A (GB)
Title: Reflective warming device
IPC: G02B5/12
Filed: 1973-05-08
Abstract: 1386219 Display devices NU-PRO CORP 8 May 1973 [8 May 1972 21 Sept 1972] 21960/73 Heading G5C  A warning device for attachment to a bicycle or vehicle has a sheet 10 of an S-shaped crosssection which is rotated about a diameter 11 by the wind, there being reflex-reflecting areas 26, 27 on opposite sides of sheet 10 in non-coincident axial positions. The remaining portions of the sheet may be coated with fluorescent paint. As the sheet rotates, light from the reflex portions shifts axially with each revolution and shows a cyclic radial change in size. Sheet 10 and the mounting frame may take different shapes.
Patent GB-673904-A (GB)
Title: Improvements in or relating to signalling systems particularly for use on ships
IPC: G08B3/10
Filed: 1949-08-25
Abstract: 673,904. Interrupters. CHADBURNS (LIVERPOOL), Ltd., and BAMFORD, D. C. Aug. 25, 1950. [Aug. 25, 1949] No. 22077/49. Class 38 (v). [Also in Group XXXVIII] An electrically-controlled audible signalling system for ships (see Group XXXVIII) comprises a motor driven cam switch adapted to make three different contacts at regular intervals. A motor 13 steadily drives a doublefaced cam 15 having on the one side two contact lobes 17 and 18 co-operating with one fixed resilient wiper brush 19 and on the other side a single contact lobe 31 and two brushes 21, 22. The cam lobes are stepped at 25 to cause contacts to occur with a snap action. Connections to the cam lobes 17, 18 and 31 are brought out separately and one side of the cam may be displaced angularly relative to the other side to permit adjustment of phase of the lobe 31 with respect to 17 and 18 which are themselves fixed 180 degrees apart.
Patent GB-776553-A (GB)
Title: Improvements in and relating to the matching of ladies stockings
Inventor: STAPLETON JOHN JAMES HECTOR
IPC: G01B5/00
Filed: 1954-07-29
Abstract: 776,553. Sorting articles. KAYSER BONDOR, Ltd., [formerly BONDOR Ltd.]. April 5,1955 [July 29, 1954]. No. 22125/54. Class 117 [Also in Groups VIII and XIX] Ladies stockings, which differ in height of heel reinforcement and length of leg, are sorted into groups wherein all stockings match in both dimensions, by measuring first one and then the other dimension of each stocking with reference to measuring devices 12, 13 divided into successive visually distinguished length zones, grouping the stockings into primary groups appropriate to the length zones determined by the first measurement, and then sub-grouping the stockings in each primary group into final groups appropriate to the length zone determined by the second measurement. Alternatively, both measuring steps may be carried out on a given stocking and the latter placed in its final group before proceeding to the next stocking. As shown, the measuring devices are located on a work table 11. Device 12, for measuring the height of the heel splicing, is graduated numerically, while device 13, for measuring the leg lengths, has six successive length zones coloured red, white, blue, yellow, black and green respectively. Receptacles, in the form of pegs 17, for the sorted stockings are fixed to a rail 16 above the table 11. The pegs are arranged in groups numbered one to eight corresponding to graduations on device 12 and are sub-divided into final receptacles 1R, 1W &c. which may be identified by colours corresponding to those on device 13. Each peg provides two receptacles and may be cranked at the boundary between its two colours. In operation, each of a plurality of stockings 14 of the same nominal size is placed as shown on table 11. It is then placed in the appropriate final receptacle corresponding to the two measurements on devices 12, 13. The stockings in each final group may then be paired up more exactly than the limits of zoning allow. Alternatively, the first measuring step may be carried out on a plurality of stockings which are then grouped into primary groups are then subjected in succession to the second measuring step and subsequent sub-grouping into the final receptacles. Device 13 has three series of coloured zones which are used selectively when dealing with stockings having short, medium and long leg lengths respectively.
Patent GB-1074018-A (GB)
Title: Porous metals
IPC: B01D71/02
Filed: 1964-05-28
Abstract: Ethylene is oxidized to ethylene oxide in the gaseous phase in the presence of Ag on SiC or Ag on Al powder which has been prepared by decomposing a silver salt of an a -hydroxy carboxylic acid which has been intimately mixed with the support. In Example 1 oxidation is effected in a tubular reactor at 260 DEG  C.  The catalysts are also stated to be useful inter alia for the dehydrogenation of primary alcohols to aldehydes but no example is given.ALSO:Oxidation catalysts are made by intimately mixing a heat-resistant material with a metal compound which is thermally decomposable to metal and effecting thermal decomposition without alteration of the heat resistant material, the metal compound being a Cu or Ag salt of an a -hydroxycarboxylic acid. Additionally the catalyst may contain Mg, Ba, Co, Ni, Au or Pt. In examples Ag is mounted on SiC and Al powder. The heat-resistant material may have a gram size of 10-2000m .
Patent GB-804149-A (GB)
Title: Improvements in or relating to holders for screws and the like
Inventor: WOODHOUSE LESLIE SINCLAIR
IPC: B65D73/00
Filed: 1956-07-18
Abstract: 804,149. Releasable fastenings ROSEDALE ASSOCIATED MANUFACTURERS, Ltd. Feb. 22, 1957 [July 18, 1956], No. 22282/56. Class 44 [Also in Group XVII] A screw holder comprises a body 10 formed with sockets 11 to receive and grip screws or the like and a stem 13 projecting from the body, the stem having a head 14 at its outer end and being of resiliently deformable material. The body is in the form of a flat plate and the sockets are formed in lugs which extend from one side of the plate. The head of the stem 13 is of conical shape with four equally spaced ribs 15 extending from its tip to its base and is intended to be pushed into a screw hole of an article for which the screws or the like are intended so that the ribs are deformed. The screw holder is moulded in one piece, of material such as polythene.
Patent GB-336677-A (GB)
Title: Improvements in the manufacture of lime-nitrogen
IPC: C01C3/00
Filed: 1929-07-20
Abstract: 336,677. Elektrochemische Ges., and Grohmann, H. July 20, 1929. Calcium cyanamide is prepared by heating calcium carbide in nitrogen which is supplied through channels uniformly distributed throughout the mass. Cardboard tubes are inserted into the carbide powder which is then heated to a temperature of 800‹ C. or over. The heat of nitrogenation produces fusion of the mass which then absorbs nitrogen but remains sufficiently viscous to retain the channels.
Patent GB-479881-A (GB)
Title: Improvements in or relating to electrical communication systems
IPC: H04Q1/45
Filed: 1936-08-14
Abstract: 479,881. Automatic exchange systems. STANDARD TELEPHONES & CABLES,Ltd., and NEILSON, C. 13. V. Aug. 14, 1936, No. 22461. [Class 40 (iv)] In a system employing voice-frequency impulsing and signalling and in which delay means in the signal-receiving circuit to prevent faulty operation by the momentary appearance of the signal frequencies in speech is not connected up until speech is actually on the line, a thermionic valve normally in the signalreceiving circuit is connected in series in the line prior to the reply of the called subscriber to permit tone signals to pass back to the calling party but to prevent any interfering signals from the calling end from passing to the line. The Figure shows apparatus at a toll board TB at either end of a two-way toll line TL. When the line is taken into use, a relay group at the calling end grounds terminals 3 and 5 energizing relay M which connects valve V1 in series in the line. 750- cycle current is transmitted over the line operating relay I at the incoming end which extends ground from terminal 1 over terminal 2 to the associated relay group with the result that ground is connected also to terminal 3 but not to 5. Impulses are repeated by relay I at the receiving end over terminal 2. When the called subscriber replies, a long pulse of 600-cycle plus 750-cycle current is sent back operating relays I, H at the outgoing end. Normally-operated relay D releases energizing relay V which releases M to disconnect valve V1 from the line. During the release period of relay M, a metering signal is transmitted over terminal 4. Subsequent signals of 600 cycles plus 750 cycles are repeated by relay D at contact d<3> with a predetermined delay, the delay at the beginning of the impulse being provided by the release time of D and that at the end of the impulse by a similar relay 1C which must fall back before D can reenergize. A similar delay arrangement is inserted at the incoming end when the called party replies. Specification 464,800 is referred to.
Patent GB-1144823-A (GB)
Title: Riveting or rivet setting machine
Inventor: STEGGLES DAVID
IPC: B21J15/32
Filed: 1966-05-20
Abstract: 1,144,823. Transfering rivets. STEELS & BUSKS Ltd. 12 Aug., 1967 [20 May, 1966], No. 22506/66. Heading B3U. A riveting machine with a feeding shoot 35 for the rivet blanks has a pair of opposed jaws 15 at the foot of the shoot, the jaws being guided in unison with the plunger 6 and opened to release the rivet adjacent the work by the plunger. Each jaw is mounted on a rod 14 which is connected to the other rod of the pair by a cross-piece 21a so that the rods may be rotated in the cross-piece. The jaws have concentric annular recesses to receive different sizes of rivet. The plunger rod 5 has sleeves 22, 23, Figs. 3 and 4 (not shown), rigidly connected thereto and through which the jaw rods 14 pass. The jaw rods reciprocate with the plunger rod and are held centrally thereto by springs 25, 26 which abut a sleeve 24 fixed to the rods 14. Mounted on the body 13 of the machine is a screw-threaded shaft 51 with adjustable abutments 52, 53 to limit the movements of the rods 14. An indexing device 36 is provided on the shoot 35 and is activated by the plunger. In operation a rivet is held by the jaws and the jaws descend ahead of the plunger until the cross-piece 21a abuts the lower stop 53 stopping the descent of the jaws. The plunger continues to descend and rollers 29 mounted on levers, Fig. 3 (not shown), rigidly keyed to the rods 14, roll against a step 32 on a pillar 31 connected to the plunger causing the rods 14 to rotate and the jaws 15 to open. The shoot 35 is preferably of conventional shape but it may be tubular, Fig. 7 (not shown), of circular cross-section and made of metal or plastics. The plunger may be activated pneumatically, hydraulically or mechanically. The anvil holder 4 may be omitted and the anvil mounted on a separate bench. Several machines may be used side by side. The machine may be modified for floor mounting to be operated by a standing or seated operator.
Patent GB-1505921-A (GB)
Title: Production of chlorinated derivatives
IPC: B01J21/00
Filed: 1975-05-23
Abstract: 1505921 Oxyhydrochlorination B F GOODRICH CO 23 May 1975 [22 July 1974 19 Feb 1975] 22527/75 Heading C2C Chlorinated derivatives of ethylene are produced by oxyhydrochlorination of ethylene or a chlorinated ethylene derivative; separating in a stream from the process any unwanted chlorinated ethylene derivatives and other byproducts; injecting the stream into a fluidized bed of a silica combustion catalyst, having a surface area of # 10 sq.m./g. and being non- friable and resistant to attrition, which is fluidized by O 2 -containing gas containing # 2 moles of O 2  per mole of C in the stream and maintained under atmospheric or superatmospheric pressure and at 350-550 C. to produce a mixture of hot combustion gases comprising HCl and being substantially free of Cl 2  and chlorohydrocarbon materials; and recycling the mixture of gases to the oxyhydrochlorination step. The catalyst is preferably kept at 400- 500 C. and a pressure of 25-150 p.s.i.g. used. The catalyst preferably has a surface area of especially 175-600 m<SP>2</SP>/g. The process is particularly suitable in the production of vinyl chloride.
Patent GB-1034764-A (GB)
Title: Improvements in trailers
Inventor: NISBET THOMAS DIXON
IPC: B60P3/10
Filed: 1964-06-01
Abstract: 1,034,764. Boat trailers. HALLMARK ENGINEERING CO. Ltd. May 28, 1965 [June 1, 1964], No. 22598/64. Heading B7B. The chassis 5, 6, 7 of a boat trailer is carried by pivoted suspension units which are rotated relatively to the chassis by the hand lever 21 secured to the units so that when the lever 21 is depressed the chassis is raised from the ground into a trailing position on its wheels.
Patent GB-1218167-A (GB)
Title: Recovery of copper
Inventor: QUENEAU PAUL ETIENNE
IPC: C22B5/02
Filed: 1969-05-02
Abstract: 1,218,167. Extracting metals. INTERNATIONAL NICKEL CO. OF CANANDA Ltd. May 2, 1969 [May 2, 1968], No.22632/69. Heading C7D. Cu is recovered from cupriferous material by forming the material into a turbulent molten bath containing Cu sulphide and having a Cu: Ni ratio of more than 7: 3 by weight (preferably at least 10:1); volatizing more than half of one or more of the impurities Bi, Pb, Sn and Zn (and preferably also As) from the bath without forming a metal phase in the bath; surface-blowing the bath with a free-O 2 - containing gas to convert a minor portion of the Cu sulphide to an immiscible metal phase in which one or more of Sb, As, Bi, Pb, Sn and the precious metals is concentrated; removing the immiscible metal phase; surfaceblowing the remaining turbulent bath of Cu sulphide witha free-O 2  - containing a gas to convert Cu sulphide to liquid Cu, to saturate the liquid Cu with O 2  and to oxidize and volatilize one or more of the impurities As, Pb, Se, S, Te and Sn; and then lowering the O 2  content of the liquid Cu to less than 0À1% by reduction with an atmosphere reducing to Cu 2 O. When the cupriferous material contains too much Ni, the material is first converted to a S- deficient matte e. g. by surface-blowing with free-O 2 - containing gas, the matte is slowly cooled to produce crystals of Ni sulphide and Cu sulphide having a Cu: Ni ratio greater than 10:1 with or without a magnetic fraction containing precious metals, the Ni sulphide, Cu sulphide and magnetic fraction are separated (e. g. the magnetic fraction magnetically, the sulphides by flotation) and treated individually to recover the Ni, Cu and precious metals. Cu sulphide is treated as described above; the magnetic fraction is melted, surface-blown with free-O 2 - containing gas, granulated by quenching, treated with CO to remove Ni as Ni carbonyl, and the remainder treated by leaching to remove Cu and S from the precious metals; and the Ni sulphide is either blown to Ni metal as described in Specification 960, 698, or treated to produce Ni carbonyl. When the cupriferous material contains substantial amounts of Fe as Fe sulphide, the Fe is initially oxidized to Fe oxide which is removed before purification of the bath. Before, after, or at the same time as the final step of treating with reducing gas, the bath may be subjected to sabatmospheric pressure treatment, e.g. at less than 10<SP>-3</SP> atmosphere. The bath may be kept in a turbulent state penumatically, electromagnetically or, preferably, by using a top blown rotary converter.
Patent GB-1299670-A (GB)
Title: 2-benzyl-4-piperidine compounds
Inventor: AKKERMAN A M
IPC: C07D211/48
Filed: 1970-06-01
Abstract: 1299670 2-Benzyl-4-piperidin-ones and -ols ACF CHEMIEFARMA NV 1 June 1970 [4 June 1969(2)] 22736/72 Divided out of 1299669 Heading C2C The invention comprises compounds of Formula (I) in which X is OH and Y is R 2 , or X and Y together denote a single O atom linked to the ring by a double bond, and each R, which may be the same or different, is CH 3  or C 2 H 5  or together in combination with the ring carbon atom to which they are attached represent a cycloaliphatic ring, R 1  is H, alkyl or aryl, R 2  is alkyl, alkinyl, aryl, aralkyl, or heteroaryl group, and R 3  is H, OH or alkoxy, or salts thereof. The piperidinols may be obtained by reducing the corresponding 4-piperidones in which X and Y together O or by reacting the 4- piperidone with an alkyl, alkinyl, aryl, aralkyl or heteroaryl metal compound. The piperidones may be obtained by reacting a #-keto estic of Formula (III) where R 3 <SP>1</SP> is H or alkoxy, with benzylamine, catalytically hydrogenating the resulting Schiff base to form a benzylamino ester of Formula (V) catalytically hydrogenolysing the latter to give a #-amino ester of Formula (VI) reacting the product with an alkyl acrylate or alkyl #-halopropionate, followed, if desired, by substitution on the nitrogen atom to give a 3,3<SP>1</SP>-iminodipropionic acid ester (VII) effecting a Duckmann cyclization reaction on the latter to form an alkyl 4-OXO-3-piperidine carboxylate of Formula (VIII) and hydrolysing and decarboxylating the latter to form the 2-benzyl-4-piperidone. Alternatively, this product may be obtained by the steps of acylating a propionic estic having a secondary amino group at the # position with an acid chloride of a mono ester of a dialkyl malonic acid or a 1,1-cylcoalkanedicarboxylic acid to form an amido dicarboxylic ester (IX) wherein the R 4  groups are equal or different alkyl groups and R 1 <SP>1</SP> is an alkyl or aralkyl group, effecting a Dieckmann cyclization to form a 1 - R 1 <SP>1</SP> -5,5 - R - 4,6 - dioxo - 3- piperidinecarboxylate, hydrolysing and decarboxylating the latter to form a 1-R 1 <SP>1</SP>-5,3-R- 2,4-piperidinedione, protecting the 4-carbonyl group by converting it to a 4-ketal, reacting the product with an optionally substituted benzyl lithium to form a 2-benzylidene piperidine and reducing the latter and regenerating the 4-oxo group to form a 2-benzyl-4-piporidone (XIV) and optionally converting R 1 <SP>1</SP> in to R 1  and/or R 3 <SP>1</SP> in to R 3 .
Patent GB-878393-A (GB)
Title: Process for the production of 3, 5, 3-5-tetra-substituted 4, 4-dihydroxy-diphenylmethyl carboxylic acids
IPC: C07C59/52
Filed: 1959-07-02
Abstract: The invention comprises a series of carboxylic acids and esters derived from dihydroxy-diphenylmethane (see Group IV(b)), which are useful as stabilizers for plastics.  For example, 4, 41-dihydroxy-3, 5, 31, 51-tetra-tert.-butyl diphenylmethyl carboxylic acid can be used as an age-resister for polycarbonates.ALSO:The invention comprises 4,41-dihydroxy-diphenylmethyl carboxylic acids, and their esters and alkali metal salts, which are substituted in the 3,5,31 and 51-positions by alkyl, aryl or cycloalkyl groups, at least one of which is joined to the phenol ring through a tertiary carbon atom. The salts are prepared by reacting 1 mol of dichloro-acetic acid with 2 mols of an alkali-metal salt of the appropriate 2,6-disubstituted phenol; the reaction being carried out in a lower aliphatic alcohol as solvent, and in the presence of such an amount of an alkali-metal hydroxide as is necessary to neutralise the dichloro-acetic acid. In Example 1, a solution of 2,6-di-tert.-butyl phenol in ethyl alcohol is mixed with an aqueous solution of potassium hydroxide in a stirrer-type vessel provided with a refluxcondenser.  The mixture is heated to 80 DEG C. and dichloro-acetic acid is run-in. The reactionmixture is maintained at 80 DEG C. for 12 hours; and the alcohol is then distilled off in vacuo.  Water is added to the residue, whereupon potassium chloride is dissolved but 4,41-dihydroxy - 3,5,31,51 - tetra - tert. butyl diphenylmethyl carboxylic acid is precipitated in crystalline form.  The crude acid may be purified by recrystallisation from ligroin or cyclohexane.  The example refers to the esterification of the acid with ethanol.  The acids of the invention have use as age-resistors for plastics (Group IV(a)) and as anti-oxidants for mineral oils (Group III).ALSO:The invention comprises a series of carboxylic acids and esters derived from dihydroxy-diphenylmethane (Group IV(b)) which are useful as mineral oil additives.  In an example, the addition of 0.5% of the ethyl ester of 4,41-dihydroxy-3,5,31,51-tetra-tert. butyl diphenylmethyl carboxylic acid to turbine oil largely prevents the oxidation of the oil.