baber/WOPTO huggingface dataset:
Patent GB-401141-A (GB)
Title: Improvements in or relating to detachable soles and heel lifts or protectors
IPC: A43B21/42
Filed: 1933-02-02
Abstract: 401,141. Detachable soles and heels ; protectors. DABOUR, M., 18, Rue Vignon, Paris. Feb. 2, 1933. No. 3246. Convention date, Feb. 10, 1932. [Classes 17 (ii) and 17 (iii).] A detachable sole or heel lift or protector of the kind which comprises an easily removable wearing part fitted without any metallic attachment on a supporting part 1 permanently secured to the boot or shoe, has the supporting part 1 secured by nails or screws passing through a metal plate 8 which reinforces the support. A projection on the wearing part engages a recess 2 in the support.
Patent GB-260537-A (GB)
Title: Improvements in sound reproducing apparatus
IPC: H04R3/00
Filed: 1926-02-04
Abstract: 260,537. British Thomson-Houston Co., Ltd., (Assignees of Kellogg, E. W.). Oct. 28, 1925, [Convention date]. Repeating and amplifying systems. - In order to secure distortionless amplification from a phonographic sound record, the input voltages to a thermionic valve amplifier 1 are controlled by means of a variable resistance coupling 11 inserted between the stylus or pick-up device 8, 9, 10 and the primary winding of the grid transformer 2. To ensure uniform amplification over the entire frequency range, the total value of the resistance 11 should be substantially equal to the maximum reactance of the pick-up coil 10, whilst the minimum reactance of the primary winding of the input transformer 2 should be at least equal to the maximum value of the effective resistance introduced by the tapping point 12 into the circuit of the transformer. The latter will be at a maximum when the tapping is at the centre point of the resistance 12 and will be onefourth of the total value of the resistance 12. For instance, the total resistance 12 may be 75,000 ohms, the inductance of the coil 10 three Henries having a reactance of 75,000 ohms at a frequency of 4,000, and the inductance of the primary winding of transformer 2 thirty Henries corresponding to a reactance of 18,800 ohms at a frequency of 100 cycles.
Patent GB-1015095-A (GB)
Title: Selective amplifier gain control arrangement
IPC: H03G1/00
Filed: 1963-01-25
Abstract: 1,015,095. Automatic gain control. STANDARD TELEPHONES & CABLES Ltd. Jan. 25, 1963 [Jan. 31, 1962], No. 3253/63. Heading H3T. A selective amplifier gain control circuit comprises a tuned circuit 3, 4 connected to one end of a variable attenuator, which comprises a series diode 5 and a shunt diode 6 which is in series with a resistor 15 of a value substantially. equal to the value of the terminating impedance 14 of the attenuator at the other end, the attenuation being variable without varying the impedance presented to the tuned circuit by control potentials applied to the diodes. In the Figure impedance 14 is that of the input of an amplifier stage and diodes 5, 6 are biased by resistor chain 9, 10, 11. With a small control voltage, diode 5 conducts and diode 6 is blocked, so that the impedance 14 is presented to the tuned circuit. A large control voltage saturates transistor 13 and causes diode 5 to become high impedance and diode 6 to present impedance 15 to the tuned circuit. The circuit may be used in the reverse direction in which case impedance 14 is that of the signal source, e.g. an amplifier or a cable. Greater sensitivity may be obtained by connecting the right-hand side of resistor 11 to a resistor in the collector circuit of 13.
Patent GB-270390-A (GB)
Title: Improvements in or relating to methods of and machines for folding the edges of flexible material
IPC: A43D8/40
Filed: 1926-02-05
Abstract: 270,390. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Feb..5, 1926. Folding edges of sheet material.-In machines for folding the edges of sheet material such as vamps, quarters, and like parts of shoe uppers, and particularly tongues, straps, and similar narrow parts of uppers, means is provided to cause the folded part to lie flat instead of being more or less twisted. In order to prevent the material from becoming twisted, the portion being folded is drawn forwardly with sufficient force to counterbalance the pull exerted by the adjacent turned-up unfolded portion of the material. The edge 2, Fig. 22, of the material 4. to which cement has been applied, is turned up by a stationary plough 333 acting in conjunction with a gauge 436 to determine the width of margin to be folded. A presser foot 153 holds the work while it is engaged by a folder 32. The folder 32 reciprocates in a slide in a direction oblique to the path of the material but in the same plane as the matarial, Towards the end of its travel, a tail portion 83, Fig. 5, of the folder. 32 engages a spring-coutrolied abutment 85 to cause the folder to turn about a pivot 81 on the block 77, and to cause the block to turn on a pivot 363 on the obliquely-moving slide, the parts turning about the pivots 81. 363 being acted upon by springs. By these means, the folder 32, during the latter part. of its travel, is caused to move obliquely downward, to engage the margin against the presser foot 153, to draw it forwardly to counterbalance the pull exerted by the unfolded portion of the material, and to bend it over and stick it to the body portion of the work. The folded portion is then engaged by a fold presser 42, Fig. 22, having a cut-away portion 375 to permit of the oblique motion of the folder, a projection 373 for engaging concave folded parts, and a projection 371 for dealing with convex parts. The fold presser has a cylindrical outer part carried in a bearing 156 in a spring-controlled arm 158. An ,edge-equipping device for operating on concave parts comprises a treadle-controlled blade 352 adapted to coact with the plough 353. The work is moved forwardly by a four-motion feed device 30, 41 for example of the kind described in Specification 189,503, [Class 16, Books &c.].
Patent GB-1047722-A (GB)
Title: Dewpoint measuring system
IPC: G01N25/68
Filed: 1964-01-27
Abstract: 1,047,722. Semi-conductor pulse circuits. CAMBRIDGE SYSTEMS Inc. Jan. 27, 1964 [Jan. 28, 1963], No. 3335/64. Heading H3T. [Also in Division G1] In a dewpoint determining system the amount of condensation on mirror 30 determines the amount of diffuse and specularly reflected light falling on photo-resistors 88 and 66 respectively. The photo-resistors are arranged in a bridge circuit and any lack of balance signal is amplified by transistor 74 and fed through resistor 106 to line 108. Capacitors 123 and 125 between this line and line 124 charge up at a rate dependent on the signal and when line 108 reaches a certain potential unijunction transistor 112 breaks down and the capacitors are discharged through winding 120 of transformer 122. The repetition rate of the pulses occurring in winding 120 is thus related to the bridge out-of-balance signal. The transformer 122 has two secondary windings respectively gating reverse direction rectifier paths 140, 146 and 150, 154 fed with A.C. from source 136 and energizing output transformer 160.
Patent GB-1462661-A (GB)
Title: Brazing alloy
IPC: B23K35/30
Filed: 1974-01-24
Abstract: 1462661 Brazing JOHNSON MATTHEY & CO Ltd 17 Jan 1975 [24 Jan 1974] 03343/74 Heading B3R [Also in Division C7] A copper-containing brazing alloy comprises: Ag 15-45%; Mn 0À2-15%; Ni 0À2-10% and Zn 15-40%; the balance, apart from impurities, being Cu. The alloy may be used to braze cutting tips or inserts to or into shanks to make cutting tools. The example describes brazing a carbide insert into a groove of a steel rock drill shank when the joint gap is preferably at least 0À004 inch.
Patent GB-657746-A (GB)
Title: Improvements in ladders
IPC: E06C7/08
Filed: 1947-02-05
Abstract: 657,746. Ladders. KERR & CO. (MANCHESTER), Ltd., J., and CLEMENTS, H. G. Feb. 5,1947, No. 3394. [Class 20(ii)] The ends of the rungs of a ladder having tubular metal sides b and rungs a are of reduced diameter and are secured in through-holes in the sides b by tubular plugs c located and subsequently expanded within the ends of the rungs so as to form an enlargement of each plug within the rung end behind the portion of reduced diameter. Each plug c may be provided with a head c<SP>1</SP>, and a pin d may be forced into the hole of the plug. In modifications, the outer ends of the rungs may be swaged over, or the ends of the rungs may be tapered, or each end may be stepped to form two shoulders a 4 , a 5 , Fig. 6 (not shown).
Patent GB-548661-A (GB)
Title: Improvements relating to apparatus for visually indicating the rotation of revolving shafts and the like
IPC: G01P13/00
Filed: 1941-03-13
Abstract: 548,661. Rest or motion indicator. ELECTRIC RESISTANCE FURNACE CO., Ltd., MARSH, J. H., and SCOTT, C. A. March 13, 1941, No. 3417. [Class 106 (iii)] The shaft 2 of which rotation or rest is to be indicated carries an insulating drum 3 rigid therewith and provided with a contact or set of contacts 4 adapted to co-operate with a fixed contact or contacts 5 to control the circuit to a visual device, for instance a neon lamp. The contact 4 is mounted on a drum 3 of insulating material carried by the shaft 2. Brush holders 6 for the brushes 5 are carried on an arm 7 secured to the base plate 8 of a terminal box 9 on the wall of the casing 1. The brush holders are connected to insulated terminals 12, 13 by conductors 11. The terminals are connected to a Neon lamp circuit. When the shaft is rotating, the lamp flickers, but when the shaft is at rest, the lamp is either out or, when the brushes are bridged by the contact 4 remains steadily lighted. Alternatively, the contacts may effect the alternative charge of a condenser and its discharge through the Neon lamp circuit.
Patent GB-1536880-A (GB)
Title: Vacuum-type circuit interrupter
Inventor: SOFIANEK J
IPC: H01H33/664
Filed: 1976-01-29
Abstract: 1536880 Vacuum interrupters GENERAL ELECTRIC CO 29 Jan 1976 [3 Feb 1975] 03536/76 Heading H1N In a vacuum switch of the type comprising in an evacuated envelope 10 a plurality of pairs of separable contacts 32, 34, each pair including a movable contact on the end of a conductive rod 36, the conductive rods being located physically side-by-side and electrically connected in parallel, a plurality of tubes 26 of conductive metal respectively surround the conductive rods, each tube being radially spaced from the conductive rod which it surrounds and extending so that the engaging surfaces of the pairs of contacts are located outside the tubes when the switch is closed, the tubes being fixed to the evacuated envelope and forming flux shields. All the movable contacts 34 and their conductive rods 36 are simultaneously moved, and each rod is sealed where it passes through the evacuated envelope by a bellows 40 which is disposed within the associated tube. A second set of conductive rods 62 connected with respective fixed contacts 32 are interleaved alternately with conductive rods 72 of a third set around the circumference of a circle, the third set of conductive rods being connected electrically to the movable contacts 34, diffuse arcs forming between these second and third sets of rods during separation of the contacts. Simultaneous motion of the contacts is assured by overtravel mechanisms 56.
Patent GB-127542-A (GB)
Title: Improvements in and relating to Fly Traps.
Inventor: NAVROT STANLEY
IPC: A01M1/10
Filed: 1919-02-14
Abstract: 127,542. Navrot, S. Feb. 14, 1919. Insect traps.-A fly trap comprises a lower member 5 of annular trough shape having an inwardly-extending frusto-conical entrance 6, and supports 7, and an upper inverted cup-shaped member 8 resting upon the lower member, the two members being formed with co-operating rabbeted edges. They are held together by pins 12 on the one engaging bayonet-slots on the other, a gasket 13 being interposed, if desired, between the meeting faces of the members to make a fluid-tight joint. A boshing 16 carrying a cage-like screen 17 is screwed into the top of the upper member, and a plug 19 carrying a bait-holding hook 20 is screwed into the bushing. The shank of the hook is extended and provided with a suspension eye 22.
Patent GB-1374460-A (GB)
Title: Catalyst composition
IPC: C07C11/167
Filed: 1971-12-30
Abstract: 1374460 Olefin oxidation catalyst NIPPON KAYAKU KK 30 Dec 1971 [26 May 1971] 03671/74 Divided out of 1374459 Heading B1E Olefin oxidation catalyst comprises (i) a composition having the empirical formula Ni a Co b Fe c Bi d Q e M h Mo f O g  wherein M is at least one element selected from potassium, rubidium and caesium, Q is at least one element selected from titanium, tin, chromium and manganese, a is 0-6, b is 0-20, c is 0.5-8, d is 0.1-7, e is less than 3 but is not zero, f is 12, g is 36-90 and h is not greater than 0.5 but is not zero and, optionally, (ii) carrier material, for example selected from alumina, silica and silicon carbide. The catalyst, which may be in the form of grain, powder or pellets, may be prepared by a generally conventional procedure which involves co-precipitation, optionally in the presence of carrier material or precursor therefor, and subsequent calcination in a stream of air or oxygen. Specified catalysts comprise silica carrier material and a composition which contains cobalt, iron, bismuth, chromium, potassuim and molybdenum.
Patent GB-867880-A (GB)
Title: N-acyl derivatives of (3:5-diamino-2:4:6-triiodobenzoyl)-amino acids and x-ray contrast media containing the same
IPC: C07C233/00
Filed: 1958-02-04
Abstract: The invention comprises compounds of the general formula: <FORM:0867880/IV (b)/1> and their non-toxic salts with organic or inorganic bases, where X is a methylene or polymethylene group which may be substituted by alkyl or phenyl groups, ac is an acyl radical preferably of an aliphatic carboxylic acid of which the acyl group contains 1-6 carbon atoms.  The compounds may be prepared by 3:5-dinitrobenzoylating the amino group of the required amino acid e.g. by reaction with 3:5 dinitrobenzoyl chloride by a Schotten-Baumann reaction, and reducing the acylation product to the corresponding 3:5 diaminobenzoyl product, which is then tri iodinated preferably by means of iodine monochloride in hydrochloric acid, and then N-acylated on both of the amino groups.  Examples are given of the preparation of 3:5-bis (acetylamino)-2:4:6-tri-iodo hippuric acid, 3:5-bis (acetylamino)-2:4:6-tri-iodobenzoyl-N-d: 1-leucine, 3: 5-bis (propionylamino)-2:4:6-tri-iodo hippuric acid, 3:5-bis (formylamino)-2:4:6-tri-iodohippuric acid, 3:5-bis (acetylamino)-2:4:6-tri-iodobenzoyl-N-d:1-alanine, and N-[3:5 bis-(acetylamino)-2:4:6 tri-iodobenzoyl]-a -aminophenyl acetic acid and the corresponding unacylated compounds.  Methyl glucamine salts of the acylated compounds are specified.ALSO:Compounds of the general formula <FORM:0867880/VI/1> (where X is a methylene or polymethylene group, which may be substituted by alkyl or phenyl groups, and ac is an acyl radical), and non-toxic salts of these compounds with organic or inorganic bases, are used in X-ray contrast media.  Compounds specified are 3 : 5-bis-(acetylamino) - 2 : 4 : 6 - triiodo hippuric acid and the corresponding formylamino and propionylamino compounds, 3 : 5-bis-(acetylamino)-2 : 4 : 6 - triiodobenzoyl - N - d : l - leucine and the corresponding d : l-alanine compound, and N - [3 : 5 - bis - (acetylamino) - 2 : 4 : 6 - triiodobenzoyl] - a  - aminophenylacetic acid.  The compounds may be used with a diluent, and other constituents may be included in the preparation of the X-ray contrast media.  In examples compositions are prepared by mixing 3 : 5 - bis - (acetylamino) - 2 : 4 : 6 - triiodo hippuric acid with methyl glucamine and water, and by mixing the methyl glucamine salt of the above hippuric acid compound with sodium citrate, the sodium salt of ethylene diamine tetra-acetic acid, and water.
Patent GB-622155-A (GB)
Title: Improvements in or relating to valves and valve gear of internal combustion engines
IPC: F02B75/02
Filed: 1947-02-10
Abstract: 622,155. Valves and valve-gear. COUSTOL, W. D. Feb. 10, 1947, No. 3844. [Class 7 (vi)] Separate valves 4, 5 sliding between the piston and cylinder are connected to the connecting-rod 9 to control inlet and exhaust ports 2, 3 in the cylinder wall. The valves form a two-part sleeve extending round the bore and having adjacent edges rebated or formed with staggered fine slots on their outer surfaces. They are moved through ball joints by arms 10 extending from the connecting rod, adjacent the gudgeon pin as shown, or from a point further down the connecting rod. Adjustment is provided.
Patent GB-621007-A (GB)
Title: Improvements relating to hydraulic jet propulsion and manoeuvring apparatus for ships
IPC: B63H11/00
Filed: 1947-02-10
Abstract: 621,007. Propelling ships. GILL, J. H. W. Feb. 10, 1947, No. 3847. [Class 114] A nozzle for a ship hydraulic propulsion device has a conical deflector C provided with guide vanes D. Surrounding this is a mask G adjustable in position around the deflector, the mask having a single gap so as to direct the water flow in the desired direction. Vanes running fore and aft may be fixed to the deflector to direct the flow mainly in that direction. Specifications 140,985, 187,309, 210,930, [all in Class 114], and 503,593 are referred to.
Patent GB-233781-A (GB)
Title: Improvement in or relating to internal combustion engines with rotary compressors
IPC: B60T1/08
Filed: 1924-02-14
Abstract: 233,781. Zoller, A. Feb. 14, 1924. Addition to 146,994, [Class 7 (ii), Internal-combustion engines, Arrangement &c. for]. Brakes, arrangement and disposition of, and braking; pneumatic transmission.-Engines for road vehicles &c., are charged with air or combustible mixture by rotary compressors which are also adapted to actuate the vehicle brakes. The cock 23 first throttles the air supply to the cylinders, then on completely closing the passage 22 causes the compressor to act as a direct brake on the motor, and on being turned still more admits air to the pipes leading to the brake cylinders. The brake cylinders may be mounted under the engine frame and operate the wheel brakes by means of rods. or may be fitted in each wheel. each brake cylinder actuating through a jointed rod the free ends of the brake-shoes. The fluidconveying pipes may be branched so as to act conjointly on a front wheel on the one side and the rear wheel on the opposite side of the vehicle. Compressed air from the device may also be used to actuate tilting contrivances and inflate pneumatic tyres, pneumatic jacks and the like.
Patent GB-936675-A (GB)
Title: Improvements in or relating to mixing appliances
Inventor: HARRISON KENNETH JAMES
IPC: B28C7/02
Filed: 1960-09-10
Abstract: 936,675. Concrete mixers. LINER CONCRETE MACHINERY CO. Ltd. Sept. 4, 1961, [Sept. 10, 1960; Sept. 27, 1960], Nos. 3921/63 and 3922/63. Divided out of 936,674. Class 86. A concrete mixing plant comprises a mixer 10 and a self-supporting tower or stand 34b carrying on a swinging boom 34a a scraper shovel 11 operated by an hydraulic motor deriving its fluid supply from a pump driven by a motor of the mixer; control means for the scraper-shovel being mounted on the tower. As shown, the control means is a panel 35 (see also Fig. 2, not shown) from which also are controlled the swinging of the boom, a conveyer 20 for discharging cement from the loading skip 12, the water supply 14, the mixer 10 and an hydraulic cam 19 operating the mixer discharge door 15. The skip 12 may be associated with weighing mechanism. The control means may comprise switches controlling solenoid, magnetic or other valves by electric, pneumatic, mechanical or hydraulic circuit or by a beamed radio or sonic signal. The hydraulic motors may be arranged to serve more than one purpose, and operations may be arranged to control one another in sequence, e.g. the loading skip may open and close the water supply valve, the flow through which is adjusted so that the required amount is supplied. Specifications 926,848 and 936,673 are referred to.
Patent GB-165718-A (GB)
Title: Improvements in or relating to cases, bags and the like
IPC: A45C5/00
Filed: 1921-02-03
Abstract: 165,718. Lyde, C. H. Feb. 3, 1921. Lids and co-operating details of bodies. - A dust-proof and watertight closure for cases, bags, &c. comprises a groove formed on three sides of the mouth of the body by means of metal strips e, f, which may be covered with leather or the like, and a rib d on the lid engaging this groove and also covered with leather &c. and constituting one limb of a member of L-section cf which the other limb is secured to the lid.
Patent GB-1043061-A (GB)
Title: Improvements in or relating to freezing foodstuffs
Inventor: SOLA EINAR
IPC: F25D31/00
Filed: 1965-01-29
Abstract: 1,043,061. Freezing foodstuffs. FISKERIDIREKTORATETS KJEMISK-TECKNISKE FORSKNINGSINSTITUTT. Jan. 29, 1965, No. 4007/65. Heading F4H. Foodstuff freezing apparatus comprises a plurality of pockets 20, a piston 31 associated with each pocket and a platform 41 for supporting frozen blocks discharged from the bottoms of the pockets 20, each of the latter comprising an upper filling zone 22, an intermediate heating zone 24 and a lower freezing zone 25. In operation the lower ends of the pockets are closed by a plate, the pockets are filled with the foodstuff, e.g. fish fillets, and pressure is applied to the fillets by the pistons. Freezing is then begun in zone 25 and heat applied to zone 24 to prevent the fillets from freezing in zone 22. The pistons may remain in position during the entire freezing step since they are spring- biased and move upwardly to accommodate the expansion of the fillet, or may be removed when the fillets are partially frozen. Heating medium is supplied to zone 25 upon completion of freezing, the plate is removed and the pistons are subsequently moved downwardly to eject the frozen blocks and replace them by unfrozen fillets from zone 23. Platforms 41 is spaced below the bottoms of pockets 20 by a distance slightly less than the heights of the frozen blocks so that the lower ends of the pockets are always blocked by frozen material. Freezing is then restarted and after an interval the ejected block is sub-divided by saws 54 (Fig. 2) and removed by tilting platform 41 about a pivot 43. Zone 22 is then re-filled with fillets and pressure applied thereto by pistons 31. Saw blades 54 are mounted on a trolley which is movable on rails 49 to a position beneath the pockets 20, platform 41 having slots for the reception of the driving shafts 53 of the saws. Trolley 56 is itself mounted on a carriage movable on rails 47 past a plurality of pocket-freezers.
Patent GB-547915-A (GB)
Title: Process for preparing preserved egg products
IPC: A23B5/14
Filed: 1941-03-25
Abstract: 547,915. Preserving egg products. BOEHM, Ltd., F., and KUNZER, H. March 25, 1941. No. 4024. [Class 49] Liquid whole egg, egg yolk or egg white is preserved by adding thereto 1 to 10 per cent. by weight of a sugar and heating the mixture to a temperature not exceeding 70‹C. The heating concentrates the mixture and effects a reaction between the sugar and the eggbetween, it is assumed, the sugar and the fatty material of the egg, especially the phosphatides. The heating may be effected under reduced pressure at 50-70‹C. The moisture content of the product may be reduced to 10 to 30 per cent., or the product may be evaporated to dryness as by spray or drum drying. The sugar may be glucose, maltose or fructose, or mixtures thereof, and may be added to the egg as a concentrated aqueous solution.