baber/WOPTO huggingface dataset:
Patent GB-857015-A (GB)
Title: Improvements in and relating to horticultural knives and pruning knives
IPC: A01G3/025
Filed: 1958-09-11
Abstract: 857,015. Pruning appliances. BIGG, T. F. H. Aug. 17, 1959 [Sept. 11, 1958], No. 29114/58. Class 6(2). [Also in Group XIV] A pruning appliance comprises a hollow, tubular member 10 having a hand grip 43 and operating lever 30 at one end, and fitted at the other end with a cap 36 having a transverse slot 11 for entraining the branch to be severed, and an abutment surface 13 against which the branch is pressed by means described below. Slidably housed within the member 10 is a block 16, recessed at 17 for the attachment of a blade 14 thereto, the block being secured to a rod 19 pivoted to the lever 30, and being normally held in its retracted position within the tube 10 by a spring 33. Whilst the blade is operated, the branch to be severed is held against the abutment surface 13 by a pad 15, fixed to the upper end of a rod 21 slidable in a bore in the block 16, and urged away from the block by the compression spring 25. The severed branch can thus be retained between the surface 13 and pad 15 until such time as it is desired to release it. The construction of the appliance may be modified by fixing the block 16 and blade 14 to the tube 10 and by arranging for the cap 36, and therefore the abutment surface 13, to be slidable relatively to the tube. According to further modifications, the pad 15 may be rockable about a transverse axis so as to be capable of aligning itself with the cutting edge of the blade, and the member 10 may be telescopic, in which case the rod 19 is replaced by a Bowden cable.
Patent GB-259411-A (GB)
IPC: F22B21/00
Filed: 1925-11-18
Abstract: 259,411. Miclausse, J., and Niclansse, A., (trading as Soc. J. & A. Niclausse). Oct. 9, 1925, [Convention date]. Water - tube boilers; blow-down apparatus.-A steam-generator fired by solid, liquid, or gaseous fuel comprises three units each consisting of vaporizing, superheating, and feed-heating tubes A, C, D respectively and arranged around a combustion chamber the walls of which are formed by the vaporizing tubes. The vaporizing and superheating tubes are separated by a partition F having vertical slots F<1> for the passage in a radial direction of the products of combustion. The feedwater flows from the pipe p to the Niclausse tubes of each of the feedheaters and thence through pipes r to the steam and water drums B. From the drums, the water flows through pipes f to the steam-collectors a of the vaporizing tubes which are also of the Niclausse type. The steam flows from the collectors through pipes e to the steam drums and thence through pipes j to a common main k having outlet pipes l to the superheaters from which the steam flows to a common outlet n. The vaporizer and feed-heating tubes are provided at their lower ends with flexible tubes leading to running-down collectors t, u.
Patent GB-897440-A (GB)
Title: Improvements in or relating to sulfonamides
IPC: C07D261/16
Filed: 1960-08-23
Abstract: The invention comprises 3-N1-acetylsulphanilamido-5-methyl-isoxazole and its preparation by reacting 3 - sulphanilamido - 5 - methyl - isoxazole or a metal salt thereof with acetic anhydride in an inert organic solvent such as acetone, benzene or pyridine, preferably at a temperature not above 90 DEG C. and more preferably not above 60 DEG C.  At temperatures above 60 DEG C. the N4-acetyl compound is formed simultaneously and is removed by treatment with alkali. Specification 814,276 is referred to.ALSO:Pharmaceutical preparations having anti-bacterial activity comprise 3-N1-acetylsulphanilamido - 5 - methyl - isoxazole (see Group IV (b)) suitably in the form of tablets, pills, powders or liquid preparations containing excipients and/or other sulpha drugs or antibiotics.
Patent GB-207523-A (GB)
Title: Improvements in wrenches
IPC: B25B13/52
Filed: 1923-11-19
Abstract: 207,523. Wallace, A. L. Nov. 21, 1922, [Convention date]. Chain wrenches. - Relates to wrenches of the type comprising a flexible member or chain 8 adapted to embrace the pipe &c. X to be turned and to be partly housed, when not in use, within a tubular handle 1. For retracting the chain, a spring 16 is enclosed between a cap 11 on the end of a plunger 10, fixed to the inner end of the chain, and a grooved member 13 fixed inside the tube and forming a guide for the plunger. A serrated block 18, carried by a flat spring 20 engaging in notches 22 in a block 23 secured to the outside of the tube, is adapted to be forced, by means of a pivoted cam 27, into engagement with serrations on the plunger 10 to fix it in position when a sufficient length of chain has been withdrawn, projections 25 extending from the member 13 forming guides for the block 23. The outer end of the chain consists of hooks 30 curved to engage flat extensions 3 of the tube 1, this being cut away and depressed at 7 to form a guide for the chain. The hooks 30 and parts 3 have interengaging inclines 29, 6 between which is provided sufficient clearance for taking up slack in the chain.
Patent GB-842881-A (GB)
Title: Improvements in radiationí¬measuring systems
IPC: G01K7/00
Filed: 1956-09-25
Abstract: 842,881. Radiation detectors. PERKIN-ELMER CORPORATION. Sept. 25, 1956 [Sept. 27, 1955], No. 29222/56. Class 40(3). [Also in Group XXXVI]  An electrical resistance bolometer 20 operating in the transition range between normal conduc tivity and super conductivity is arranged in a bridge circuit 24 and is corrected for slow temperature changes by a magnetic coil 30 arranged in a feed-back circuit. In one form, Fig. 5 radiation, e.g. an infra-red beam chopped or alternated with a beam from another source, is applied to the bolometer and the amplified output of the bridge passes to the coil 30 through a lowpass filter 27 and power amplifier 29 and to a recorder 32 through a filter 28 tuned to the chopper frequency and a phase sensitive demodulator 31. In another form, Fig. 6, the bridge output is passed through a preamplifier 46, a power amplifier 47, a magnetic coil 48, (adjacent the bolometer 40) to a filter 49 tuned to the chopper frequency a demonstrator 50 and a recorder 51.
Patent GB-286342-A (GB)
Title: Improvements in or connected with nozzles for use in the production of artificial filaments
IPC: D01D4/02
Filed: 1926-11-19
Abstract: 286,342. Walker, C. L. Nov. 19, 1926. Addition to 253,209. Drawings to Specification. Metal pipes and tubes.-Discs of noble metal carrying a number of capillary apertures are made by the following method. A cylinder of platinum, &c. is bored with a number of holes parallel to the axis of the cylinder; the holes are filled with cores of base metal, and the composite body is drawn down to a diameter such that rods cut from the drawn material will just fit the holes of a second cylinder of platinum bored similarly to the first; the composite body is again drawn, and the process may be repeated; discs are cut from the final products, and the base metal cores suitably dissolved.
Patent GB-939715-A (GB)
Title: Improvements relating to dies for presses
IPC: B30B15/02
Filed: 1961-08-15
Abstract: 939,715. Dies for pressing perforated tablets. COLLINGHAM & OWEN Ltd., and G. L. STANLEY. Sept. 17, 1962 [Aug. 15, 1961], No. 29345/61. Class 87(2). Tablets having a plurality of holes are pressed in a die comprising an upper die plate 1, with holes therethrough, each hole having a corresponding plunger 3 mounted on a top plate 4 of a box-like member 5, and each plunger having a plurality of holes through which extend rods 6, the rods extending upwards to the top of the die plate 1 and being secured at their lower ends to cross-bars 7 extending sideways through slots 8 in the member 5. Granular material is placed in the holes in die plate 1, the holes closed by members 9, and plungers 3 on member 5 are raised, die plate 1 and rods 6 remaining stationary. The holes in the die plate may be lined with renewable bushes 2.
Patent GB-886613-A (GB)
Title: Manufacture of tetrahydro-ú+ú=ºaquinoline derivatives
IPC: B01J31/08
Filed: 1960-08-26
Abstract: The invention comprises 3,4-dihydroisoquinolines of the general formula <FORM:0886613/IV (b)/1> in which n has the value 1, 2, or 3 and R represents hydrogen or an alkyl group, and a process described below, in which they are intermediates for the manufacture of 1,2,3,4-tetrahydroisoquinoline derivatives of general formula <FORM:0886613/IV (b)/2> in which R and n have the significance stated above, and acid addition salts thereof.  The process of manufacture consists of (1) condensing homoveratryl amine, for example, by heating, preferably with the aid of a condensing agent such as a cation-exchange resin in its acid form, with the correctly substituted b -phenylpropionic acid to give the correspondingly substituted b -phenylpropionic acid homoveratryl amide; (2) cyclising the aforesaid amide, especially with the aid of an acidic agent such as phosphorus oxychloride or a mineral acid, to give the 3,4-dihydroisoquinoline derivative of the first general formula above; (3) reducing the aforesaid 3,4-dihydroisoquinoline derivative by treatment with, for example, lithium aluminium hydride or lithium or potassium borohydride or hydrogen and Raney nickel so as to obtain the corresponding 1,2,3,4-tetrahydroisoquinoline derivative; (4) N-methylating the last-mentioned compound (preferably by treatment with formaldehyde followed by reduction with formic acid or with hydrogen in the presence of Raney nickel) to give the compound of the second general formula above; and (5), if desired, converting the free base of the second general formula above into one of its acid addition salts.  When R is hydrogen, compounds of the second general formula above contain one asymmetric carbon atom, and examples of resolution by diasteareaoisomer formation using dextrotartaric acid, dibeanzoyldextrotartaric acid, and dextrocamphorsulphonic acid are given.  When R is alkyl, compounds of the second general formula above contain 2 asymmetric carbon atoms.  Detailed examples are given.  Nuclear-halogenated b -phenylpropionic acids may be produced (a) by condensing the appropriately substituted benzaldehyde with malonic acid, decarboxylating the resulting benzylidenemalonic acid, and hydrogenating the product; (b) by reacting the correctly substituted benzyl halide with a sodium malonic ester (optionally alkylated), saponifying, and decarboxylating the product; and (c) reacting sodio diethyl acetoacetate with a nuclear halogenated benzyl halide, and splitting off the acetyl group from the resulting benzylacetoacetic acid diethyl ester by hydrolysis with concentrated alkalis, the ester having been alkylated prior to hydrolysis, if desired.  Detailed examples are given. Specification 862,052 is referred to.
Patent GB-640824-A (GB)
Title: Improvements in and relating to cone diaphragm electro-acoustic apparatus
IPC: H04R9/02
Filed: 1945-11-08
Abstract: 640,824. Diaphragms. MULLARD RADIO VALVE CO., Ltd., and KEDDIE, J. E. Nov. 8, 1945, No. 29820. [Class 40 (iv)] A diaphragm for a loudspeaker is of a continuous piece of woven fabric made of extruded or drawn thread or filaments, the cone being rendered substantially rigid by the application of a binder such as cellulose acetate, while the peripheral portion is left untreated to provide a flexible support. The threads are preferably of glass but use may be made of synthetic plastic materials. In the preferred form, the diaphragm is shaped to provide a central cone 11 with a toroidal surround 13 and the cone 11 and rim 14 are rendered rigid with dope while the surround 13 is left flexible. The centre of the diaphragm, with the speech coil former 9, is preferably mounted on a support of similar material comprising a disc of fabric suitably shaped and doped over the darkened portions 16, 19, leaving the intervening annulus flexible. Specifications 264,120, 310,127, [both in Class 40 (iv)], and 513,282 are referred to.
Patent GB-216054-A (GB)
Title: Improvements in or relating to the Movements of Watches and Clocks
Inventor: SEIGNOL EDOUARD
IPC: G04B29/00
Filed: 1923-11-27
Abstract: 216,054. Seignol, E. Aug. 24, 1923, [Convention date]. Addition to 158,559. Clock and watch movements; framework.-The mounting sleeves used in the parent Specification for carrying the movement plates are provided with circular shoulders 2, 2<1> to take the plates 3, 4 and with integrally-formed keys &c. 5 to position the plates axially. The plates are retained in position by U-shaped spring clips 7 having projections &c. engaging recesses formed in the plates. The cage and plates are preferably formed by casting under pressure.
Patent GB-843098-A (GB)
Title: Improvements in and relating to ingot casting
Inventor: FENTON GEOFFREY
IPC: B22D7/10
Filed: 1955-10-19
Abstract: 843,098. Ingot moulds. BRITISH IRON & STEEL RESEARCH. Oct. 15, 1956 [Oct. 19, 1955], No. 29841/55. Class 83 (1). An annular feed-head for an ingot mould comprises uncompacted heat-insulating material surrounding a thin metal wall, the face of said wall distant from the heat-insulating material being covered by a thin lining of refractory material. A cast-iron outer case 12, and a perforated sheet-steel member 15 form a container filled with a heat-insulating material such as vermiculite, slag wool or diatomaceous earth, and the member 15 is faced with a refractory 17 such as gannister, compo, fireclay or insulating concrete. Instead of perforations to assist keying of the lining, the member 15 may have weld metal studs placed thereon. The layer 17 may include exothermic materials, or a layer of exothermic material may overlay the layer 17.
Patent GB-377514-A (GB)
Title: Improvements in planimeters
IPC: G01B5/26
Filed: 1931-10-28
Abstract: 377,514. Planimeters. HOUNSFIELD, L. H., 3, Durrington Park Road, Wimbledon, London. Oct. 28, 1931, No. 29853. [Class 106 (i).] In planimeters of the Stang " or hatchet type comprising a stem with a tracing point at one end and a hatchet blade or wheel at the other end the tracing point is mounted in gimbals to eliminate the possibility of imposing side forces on the blade and the blade is associated with a needle point to puncture the paper on which the area is set out at the beginning and end of the measuring operation. As shown in Figs. I and II, a frame 1 with a ring-shaped base supports a universal joint 3 carrying the tracing point 2 and one end of the stem or bar 4. The other end of the bar 4 has secured thereto a weight 6 with a blade 5 and a semicircular needle 8, Fig. IV, adjacent the blade. The needle is normally raised above the edge of the blade by its mounting in a spring- controlled push 7. The method of operation is described in the Specification. Instead of a tracing point a spot or cross lines may be marked on a celluloid or other transparent base member on the frame 1. The distance between the tracing point and blade may be varied to suit different units of measurement.
Patent GB-210524-A (GB)
Title: Improvements in and relating to the electric propulsion of ships
IPC: H02P9/06
Filed: 1922-11-01
Abstract: 210,524. British Thomson-Houston Co., Ltd., and Pollock, A. A. Nov. 1, 1922. Dynamos and motors combined for transmitting power.-In a propulsion system for a multiplescrew ship the separately driven direct-current generators are divided into two groups and the motors are provided with double armatures, each group of generators being connected in series with one of the armatures of each motor in order that the torques on the propellers may be maintained equal in the event of a breakdown of one of the engines.
Patent GB-247693-A (GB)
Title: Improved bracket for the detachable attachment of an electric fan to a wall or like surface
IPC: A47G1/16
Filed: 1924-12-13
Abstract: 247,693. Veritys, Ltd., and Smallwood, H. W. Dec. 13, 1924. Clip brackets. - A bracket for securing an electric fan pedestal to a wall comprises a wall plate a provided with three radiating arms, two of which are formed as hooks c at their extremities whilst the third arm is formed with a housing d for a spring operated sliding bolt-hook c<3>. A set screw f is provided to secure the hook c<3> and the upper edge d<4> of the housing d serves as a rest for the fan base g while the hook c<3> is being manipulated.
Patent GB-1049330-A (GB)
Title: Benzamidines and the preparation of 2-aryl benzimidazoles
IPC: C07D235/18
Filed: 1963-07-29
Abstract: The invention comprises (I) compounds of general formula <FORM:1049330/C2/1> wherein Ar is aryl, X is chloric or bromine, and R1 and R2 are hydrogen, lower (i.e. C1- 5) alkyl or lower alkoxy; (II) the preparation of compounds A by treating a compound of formula <FORM:1049330/C2/2> with a halogenating agent; (III) the preparation of compounds of general formula <FORM:1049330/C2/3> either by treating compounds A with a base or by treating compounds B with an oxidizing agent.  N - phenyl arylamidines B are prepared from anilines and aryl nitriles with aluminium chloride.  Veterinary compositions (e.g. as a drench, bolus or animal food) containing compounds C are mentioned for use against helminthiasis.
Patent GB-602699-A (GB)
Title: Improvements in or relating to electric dry rectifiers
IPC: H01L21/14
Filed: 1945-11-09
Abstract: 602,699. Asymmetrically-conducting resistances. STANDARD TELEPHONES & CABLES, Ltd., and SEARLE, A. M. Nov. 9, 1945, No. 29995. [Class 37] In a method of electro-forming an electric rectifier element, an external source of potential directly connected across the element causes electro-forming during the application of the counter-electrode. In the example a D.C. source 8 may be connected to the base plate 2 of the element and to a mushroom-headed pin 4 insulated from the base plate 2 and selenium layer 3 by an insulating lining 7. The counter electrode metal or alloy is applied through a spray gun nozzle 1, first on to the pin 4 and then gradually outwards so that a forming current passes through the layer 3, the whole element being completely formed as soon as the spraying is completed. The edges of the element are kept free from the spray by placing the element in an annular mask 5 insulated by a lining 6. If desired, the source 8 may be connected to the mask 5 instead of the pin 4, in which case the nozzle is initially directed at the mask.
Patent GB-302026-A (GB)
Title: An improved shock or rebound absorbing means for the forks of motor cycles and the like
IPC: B62K25/08
Filed: 1927-11-10
Abstract: 302,026. Osborne, W. H. Nov. 10, 1927. Fluid - friction vibration-dampers. - In a spring fork for motorcycles &c. a primary compression spring a controlling the movement of the fork is enclosed in two elongated telescopic cupshaped elements c, d, and rebound is checked by means of a non-neturn air valve e, formed for example of a spring- pressed ball, adapted to permit escape of air during compression of the spring and telescopic device, and to restrain the incoming air during extension. The spring controlling the ball may be adjustable by means of a screw, and the casing of the valve e may be provided with a rotatable cap adapted to adjust the size of the inlet and outlet openings to the atmosphere. The movement of the telescopic elements c, d may also be damped by means of a frictional device controlled by a screw d<1>, as described in Specification 272,019.
Patent GB-648091-A (GB)
Title: Improvements in flow combiner or precision apparatus for blending liquids
IPC: B01F15/04
Filed: 1948-11-19
Abstract: 648,091. Mixing appliances. SIMMONDS AEROCESSORIES, Inc. Nov. 19, 1948, No. 30147. Convention date, Aug. 3. [Class 86] In apparatus for combining in predetermined proportions a plurality of liquid streams, each stream is fed into a common receiver through a pair of metering gears, the pairs of metering gears being connected together and driven by a pair of motor gears placed in the stream of one of the liquids at a point in advance of the metering gears. In Fig. 1 a stream of liquid A flows, at a rate determined by a metering device 30, into a pipe 32 and a portion of this stream is directed into a casing, not shown, containing a pair of motor gears 16 and 18, of which the gear 16 through a shaft 20 drives pairs of metering gears 26 and 28, 26a and 28a, 26b and 28b contained within casings such as 29, Fig. 2. The stream of liquid A and streams of liquid B and C are fed by pipes 34, 12 and 14 respectively into the sets of metering gears which deliver the liquids into a common receiver 44 in proportions determined by the dimensions of the gears. Pressure drop across each pair of metering gears is eliminated by balancing valves 36, 36a and 36b which contain double ended pistons 48 displacable to increase or decrease the opening leading to the metering gears until the pressures on both sides of the gears have been equalised.
Patent GB-538474-A (GB)
Title: Compounded mineral oil
IPC: H01B3/22
Filed: 1939-11-15
Abstract: 538,474. Salts of substituted phosphoric acids. STANDARD OIL CO. OF CALIFORNIA. Nov. 15, 1939, No. 30163. Convention date, Nov. 21, 1938. [Class 2 (iii)] [Also in Group III] Hydrocarbon oils are stabilized by the addition of an alkaline earth or heavy metal salt of an oxyacid of phosphorus substituted by an organic radicle. The acids, made by reacting the corresponding alcohols with phosphorus pentoxide in ethyl ether, may be substituted phosphoric, phosphorous, hypophosphorous, pyrophosphoric, phosphoric or phosphinic acids. The salts may be precipitated from solutions of the sodium or potassium salts with the appropriate metal ion. The metals may be those of Groups II, III, IV and VI of the Periodic system ; iron, cobalt, nickel, zinc, tin and lead are also specified. Examples include the aluminium, calcium, chromium, barium and magnesium salts of lauryl, cetyl, octadecyl, " spermol," " spermenyl," cetylphenyl, di-(amylphenyl), naphthenyl, dicyclohexyl, di-(stearo-glyceryl), tetrachloro-octadecyl, di-(6-chloro-2-phenyl-phenyl), and di-(3-methyl-4-chlorophenyl) phosphoric acids.
Patent GB-284814-A (GB)
Title: Improvements in or relating to hoists or derricks
IPC: B66C23/60
Filed: 1926-11-29
Abstract: 284,814. Miller, L., and Metropolitan- Vickers Electrical Co., Ltd. Nov. 29, 1926. Boat-lowering gear.-Relates to derrick hoists with means for keeping the hoisting rope taut, e.g. when payed out continuously or when the load is water-borne. A bight of the hoisting rope 15 is passed round a movable jockey pulley 17 which is loaded so as to take up slack. As shown, the pulley slides up and down the standard 10 between spring buffers at 21, 22 and is loaded by a counterweight 20.
Patent GB-1015282-A (GB)
Title: Improvements in or relating to the production of flexible sheets
IPC: B29C48/08
Filed: 1962-08-07
Abstract: 1,015,282. Coating sheets. SOC. ANON. DES. USINES CHARISSON. Aug. 7,1962 [Sept. 4,1961], ], No. 30280/62. Heading D1L. [Also in Division B5] A method of coating and impregnating a flexible sheet with e.g. synthetic resin comprises (see Fig. 1), passing the sheet along a channel 7 having a low pressure chamber 27 upstream of at least one duct 21, 22, distributing coating and impregnating material which then moves towards the low pressure chamber 27 against the movement of the sheet. Rollers 15, 16 between which the sheet enters the channel are preferably driven at a peripheral speed equal to the forwarding speed of the sheet and have resilient covers thereon and associated resilient sealing strips 19, 20 to seal the upper end of the channel from the exterior. The channel 7 has inserts 25, 26 of titanium or of an expoxy resin to prevent the coated sheet sticking in the channel. In Fig. 1, three sheet coating units are provided and the sheets coming therefrom are pressed together by rollers 9, 10 to form a compound sheet. In the apparatus of Fig. 2 in whi which two sheets are coated and pressed together by rollers 9, 10, the central channel 31 is divided by a rod 28 to provide a curved channel 32 or 33 for each sheet. Rod 28 is ducted so as to provide coating material for the inner surfaces of the sheets while ducts 35, 36, similar to those shown in Fig. 1, provide coating material for the outer surfaces. To make a compound sheet comprising a greater number of constituent sheets enough ducted rods 28 are provided to give the required number of channels.