baber/WOPTO huggingface dataset:
Patent GB-215004-A (GB)
Title: Improvements in methods of producing volatile metals from their sulphides
IPC: C22B19/00
Filed: 1924-04-24
Abstract: 215,004. Flodin, H. G., and Gustafsson, E. G. T. April 25, 1923, [Convention date]. Sulphur.-In a process for treating ores for the extraction of volatile metals, ores which contain iron pyrites are. preferably subjected to a preliminary heating to 700‹ C. to expel one atom of sulphur, which is collected.
Patent GB-204733-A (GB)
Title: Improved construction of brush and method of manufacturing same
IPC: A46B3/22
Filed: 1922-04-10
Abstract: 204,733. Don, C. A. April 10, 1922. India-rubber brushes; bristles, fixing.-A brush comprises a number of looped lengths A of indiarubber or india-rubber composition which are engaged by a thread E and drawn, when in a stretched state, into holes in the stock B. A backing H is secured to the stock. The lengths may be employed in combination with tufts of part india-rubber and part hair or vegetable fibre, the tufts being arranged around the edge of the brush or mixed with the lengths A.
Patent GB-576900-A (GB)
Title: Improvements in processes for obtaining modified vegetable waxes
IPC: C11C3/00
Filed: 1944-05-25
Abstract: 576,900. Modified vegetable waxes. A. S. P. CHEMICAL CO., Ltd., (formerly AFRICAN SISAL & PRODUCE CO., Ltd.), WALSH, C. L., LANKSHEAR, F. R., and BARKER, R. C. May 25, 1944, No. 10178. [Class 91] Modified vegetable waxes of increased initial softening or melting point and having rubber-like extensile properties are obtained by treating the natural wax, such as raw or refined sisal, flax, esparto, raffia, sugar cane, coffee, carnauba, and candelilla wax, either in a molten state or dissolved in an inert solvent of sufficiently high boiling point, with a reagent having an acid reaction (when said reagent is in aqueous solution) at temperatures between 85‹-250‹C. The reagents specified comprise acid gases, such as sulphur dioxide, sulphuric and phosphoric acids and chlorides of heavy metals such as aluminium, zinc and iron. Kerosene is exemplified as the inert solvent. When the metal chlorides are used, they may be removed from. the resulting material by washing with water.
Patent GB-793540-A (GB)
Title: Filtration process and apparatus
Inventor: DOBBIN HAROLD
IPC: B01D33/056
Filed: 1955-04-07
Abstract: 793,540. Travelling-band filters. FISONS, Ltd. July 6, 1956 [April 7, 1955], No. 10182/55. Class 46. [Also in Group XXX] A travelling-band filter comprises a carrier belt formed by layers of fabric 2 and rubber 1 such that no fabric is present in the area where the filtration hole 7 is made. The edges of the belt have longitudinal bars 4 and 5 forming a trough and ridges 6 are formed across the belt to assist filtration. A strip of rubber 9 covers the filtration hole 7 to prevent the filter cloth being sucked down. The belt is divided into a series of trays by ridges, similar to 6, extending completely across the belt. Each tray may be provided with more than one filtrate hole 7.
Patent GB-683866-A (GB)
Title: Improvements in or relating to automatic baling machines
Inventor: BORNZIN JAMES HERMAN
IPC: A01F15/14
Filed: 1951-05-01
Abstract: 683,866. Baling-machines. INTERNATIONAL  HARVESTER CO. May 1, 1951, No. 10195/51. Class 94(i)  .An automatic hay or like baling-machine, of the kind in which a needle is provided to carry a wire or other strand through a bale-forming chamber to complete a tie encircling a formed bale and to bring the end portions of-said tie into position for engagement with twisting or other tying means adapted to complete the fastening of the tie which is thereafter severed from the strand, has needle-operating mechanism comprising means operable at any position in the travel of said needle and in either direction of movement thereof for automatically releasing a drive connection to the needle from a source of power if resistance to movement of the needle means exceeds a predetermined amount. The needle 14 is secured at 68 to a lever 66 pivoted at 70 and connected by a link means 74 to a spring latch means associated with a power-transmitting lever 58 pivoted at 60 and rocked by a cam 50. The spring latch includes, Fig. 4, levers 78, 80 pivoted at 82 on the lever 58 and normally extending, on either side of said lever 58, in the direction thereof. The levers 78, 80 carry inwardly directed conical latch members 108, 118 normally held in sockets 110, 116 on the lever 58 by springs 100, 102 adjustable by a nut 98. Spaced members 74a, 74b which comprise the link 74 are loosely carried by bolts 104, 120 on which the conical latch members are formed. The arrangement is such that when the needle 14 encounters a predetermined excessive resistance the conical members 108, 118 are forced out of their sockets, as shown in Fig. 4, and the drive from the member 58 is not transmitted to the needle-carrying arm 66, the conical members reengaging their sockets later in the cycle and will remain engaged, if the resistance has been removed, to reconnect the drive to the needle. In an alternative construction the conical latch members may be mounted on the lever 58 and the sockets formed on the levers 78, 80, or the link 74 may be pivoted directly to the lever 58 and the levers 78, 80 and latches then associated with the lever 66.
Patent GB-589388-A (GB)
Title: Improvements relating to hydraulic motors
IPC: F04B47/00
Filed: 1944-05-26
Abstract: 589,388. Hydraulic motors. DUKE & OCKENDEN, Ltd., and STUBBS, A. D. May 26, 1944, No. 10200. [Class 69 (ii)] A hydraulic motor, particularly for operating a deep well pump has a fixed piston a attached to the supply pipe l and contained in the reciprocating cylinder b. The piston contains a central valve g operated by a piston h, flow to these being controlled by tubular valves j which are operated at the ends of the strokes by springs k engaging the connecting yokes.
Patent GB-243603-A (GB)
Title: Improvements in vegetable paring machines
IPC: A23N7/02
Filed: 1925-04-20
Abstract: 243,603. Robinson, H. April 20, 1925. Peeling vegetables. - In a vegetable-peeling machine of the type wherein the vegetables rest upon an abrading and agitating member positioned at the bottom of a container, the agitating member or disc is supported on a shaft 4 which passes through the bottom of the container and the driving-means are enclosed in a housing which is vertically adjustable. In Fig. 2 the bottom of the container 2 comprises a pan 1 having a central bearing 5 for the shaft 4 and a depending flange 10 which is slidably engaged by the housing 8, the securing bolts screwing into holes 15<a> in the flange 10 and through slotted holes in the housing 8, whereby the vertical adjustment is effected. The housing 8 is provided with a bottom bearing 7 for the shaft 4 and the downward thrust is taken by a ball race the upper and lower plates 27, 28 of which are pegged to the bevel wheel 16 and the housing 8 respectively. The bevel wheel shaft 18 is journaled in a bearing 12 secured to the housing 8 by bolts 14 which pass through holes in the flange 13 which are slotted for vertical adjustment of the bearing 12. The shaft 18 is also journaled in a swivel bearing 20 secured by adjusting screws 21 to a bracket 22 secured to the pan 1.
Patent GB-1428772-A (GB)
Title: Holder for transparencies
IPC: G03B21/64
Filed: 1973-03-02
Abstract: 1428772 Holders for transparencies P-H KONGSTAD 2 March 1973 [2 March 1972] 10350/73 Heading G2X A holder for transparencies comprises a frame 1 having openings 2 each with inside and outside edges 3 and 4, 5, and end edges 6, 7 which continue in slits 8, 9. The frame is made of cardboard, carton, plastic, sheet metal or similar springy material, and it may have only one or two openings 2. The edge 3 may be straight or curved as shown.
Patent GB-126850-A (GB)
Title: Improvements in or relating to Siphonic Flushing Devices for Water-closets and the like.
Inventor: HARRISON GEORGE WILLIAM
IPC: E03D1/08
Filed: 1918-06-25
Abstract: 126,850. Harrison, G. W. June 25, 1918. Siphons. - Crowns for siphon-discharge water - waste preventers are made with the following features :-An inclination downwards towards the long leg, Fig. 4; greater width over the short leg than over the long leg; duplex pipe shape in cross-section as shown in Fig. 5, which is a section on line a-b of Fig. 4; and a lug 15 for the pull lever made integral with the crown, or secured thereto. The device is specially applicable to siphons of the type started by raising a valved piston.
Patent GB-1495994-A (GB)
Title: Telephone systems
IPC: H04Q1/448
Filed: 1975-03-13
Abstract: 1495994 Automatic exchange systems SIEMENS AG 13 March 1975 [29 March 1974] 10420/75 Heading H4K A ringing current detector comprises a counter which is arranged to count clock pulses for a predetermined number of cycles of an incoming A.C. signal. An incoming A.C. signal is converted to square pulses of the same frequency and the first pulse sets a binary counter EMP to count 50 Hz clock pulses, whilst counter JZ counts the incoming pulses. When the counter EMP reaches a predetermined count gate G5 produces an output signal and if counter JZ is simultaneously indicating a count between 3 and 8 inclusive the received signal is accepted as a ringing signal i.e. as a frequency lying between 18À2 and 61À5 Hz. A counter UPZ is used to count clock pulses between adjacent incoming signal pulses, this counter being reset by each incoming pulse. If the count exceeds a predetermined limit an inhibition signal is produced to prevent counters EMP and JZ from producing a ringing signal indication on output AVe/AR. This counter can also be used to indicate that the ringing signal has terminated. The whole circuit may be produced as a monolithic integrated circuit. The application is to detect ringing signals incoming to a PBX from a main exchange.
Patent GB-376734-A (GB)
Title: Improvements in boxes and like containers
Filed: 1931-04-09
Abstract: 376,734. Boxes for tin-plates &c. CHAMBERS, C. F. and SALTER & STOKES, Ltd., Yonder Hill Creamery, Chard Junction, Somerset. April 9, 1931, No. 10491. [Class 18.] A wooden or like box is provided with rabbets 3 along the upper and lower edges of the sides and/or ends to take the lid and bottom, which members are constituted by a plurality of boards formed with reversely-stepped rabbets 5 along adjacent edges so that the boards can interlock and present flat inner and outer surfaces. The rabbets 3 are of such a height that the tops of the sides and/or ends are level with the surfaces of the lid and bottom, the latter members being secured by screws or nails. The box may be made from dry elm and is suitable to hold tin and other metal plates. Reference has been directed by the Comptroller to Specifications 173,091, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], and 357,215.
Patent GB-819552-A (GB)
Title: Bread slicing machine
IPC: B26D1/48
Filed: 1957-04-01
Abstract: 819,552. Slicing bread loaves. PACKAGE MACHINERY CO. April 1, 1957 [June 4, 1956], No. 10526/57. Class 5(1). Loaves on an endless belt 10 pass to a cam operated elevator 17 which raises a single loaf up to slide on to slats 19, the side plate 19 of the elevator holding back the other oncoming loaves which allow the belt 10 to slip under them. A cam operated pusher 20 pushes the loaf on the slats 19 through the crossed saw belts 21, the sliced loaf passing over an adjustable plate assembly 24, the plates of which may overlap each other more or less as adjusted to suit the bottom width of a loaf. The sliced loaves pass to a conveyer whose pushers 25, (Fig. 1 not shown) deliver it to a suitable wrapping machine. The pusher 20 recedes under the loaves, Fig. 31 and back and up again to engage the next pair of loaves and push them up to the saw belts. Each pusher comprises a series of spaced fingers 60, Fig. 31. The saw belts are spaced by finger guides 22 and 138 spaced by rubber washers and are closed up or spaced apart by a wrench. If a saw band breaks a trip plate stops the machine.
Patent GB-163194-A (GB)
Title: Improvements in fenders for motor cars or other vehicles
IPC: B60R19/26
Filed: 1920-04-15
Abstract: 163,194. Sills, B. H., and Locke-Wade Co., Ltd. April 15, 1920. Obstruction - removers. - An obstruction-remover for motor and like vehicles comprises a pair of supporting-arms 1 attached to the side-members 2 of the chassis, a pair of U-shaped chain supporting arms 7 passing through sockets 5 at the forward ends of the arms 1, and a chain impact member 10 passing through the forked ends 12 of the chain supports 7, and attached by eye bolts 11 to the supporting arms 1. A rear resilient crossmember 8 is also passed through the sockets 5 and attached to the inner parts of the arms 7 by clamps 13, the sockets 5 being adjustably clamped on the cross-member 8 and arms 7. The socket parts 5 are hinged about vertical pivots to the rear parts of the supporting-arms 1, which are attached to the side-members 2, as shown in Fig. 4. by means of eye-bolts 3 passing through the arms 1 and hook bolts 4 passing through the eyebolts 3 and engaging the flanges of the sidemembers. Springs may be located between the sockets 5 and the forked ends 12 of the arms 7 to give additional resilience.
Patent GB-241513-A (GB)
Title: Improvements in asynchronous polyphase electric motors of the squirrel cage type with increased starting torque
IPC: H02K17/16
Filed: 1925-04-23
Abstract: 241,513. Ateliers de Constructions Electriques de Charleroi, Soc. Anon. Oct. 14, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Alternating-current motors; conductors.-For increasing the starting torque of polyphase squirrel-cage motors, devices are applied either to the extremities of the rotor bars outside the slots or to the short-circuiting end-rings whereby the current flows through a high-resistance low-inductance path at starting and through a low-resistance high-inductance path during normal running. In one arrangement, Fig. 1, the ends of the bars C are notched at F and the inductance of the lower part C<2> is increased by means of an iron or other magnetic band V. The parts C<1>, C<2> of the bars may be joined to a single end-ring or to separate rings A<1>, A<2>. Two sets of short-circuiting ringsmay be employed, separated by bands of iron which surround each bar. In a modification, short-circuiting rings of magnetic material are employed located between the two groups of conducting rings or arranged alternately with the conducting rings. Fig. 5 shows an arrangement wherein the inductance of a short-circuiting ring A<2> is increased by means of a magnetic sheath comprising rings M and collars T. Fig. 7 shows in section part of an end-ring A surrounded by a magnetic band P. A construction for increasing the resistance by transformer action, Fig. 8, comprises an iron band V<2> surrounding the end of each bar C, part of the band V<2> being embraced by a conducting sheath g of small cross-section and of consequent high resistance. The same arrangement may be applied to the short-circuiting ring A, as shown in Fig. 11. The features described with reference to Figs. 8 and 11 may be combined with some of the first-described arrangements.
Patent GB-294588-A (GB)
Title: Improvements in cooking-stoves heated by petroleum
IPC: F24C5/00
Filed: 1927-04-20
Abstract: 294,588. Carpineti, A. April 20, 1927. Oil cooking-stoves; boilers, arrangement of.-A petroleum-heated cooking-stove comprises a centrallyarranged combustion chamber 2 heated by a burner 1 and communicating by flues 3 with a number of chambers containing cooking-vessels 19. The flues leading from the main flues 3 to the chambers are controlled by dampers at the base of the chambers. The gases pass up a helical flue 14 formed around the vessel 19 and away from the top of the heating chamber by flues (not shown) leading to the chimney 17. A hot-plate 24 is heated by an auxiliary burner 21 in a combustion chamber 22, which may contain water-pipes or a water-heater 23.
Patent GB-498976-A (GB)
Title: Improvements relating to centrifugal pumps
IPC: F04D1/06
Filed: 1938-04-07
Abstract: 498,976. Centrifugal pumps. KLEIN, SCHANZLIN, & BECKER AKT.-GES. April 7, 1938, No. 10644. Convention date, April 7, 1937. [Class 110 (i)] In a multi-stage pump with axially-divided casing fluid-tightness is obtained by putting pressure upon the inserted guide members by means of bolts, in the open end of the cylinder, which do not penetrate the members. These parts are pressed against an annular shoulder 10 in the casing 2 by a ring 11 secured by studs 12. The ring 11 engages a ring 8 carrying or made in one with the counter-bearing 14 of the relieving disc 6. In the former case, the bearing 14 is secured by a ring 17 or by the flange 19 of the stuffing-box cover 15. The cover 15 and ring 11 may be integral, or the ring 11 may be screwed on to the casing.
Patent GB-981887-A (GB)
Title: Improvements in and relating to electrical measuring indicating or control apparatus
Inventor: WESTAWAY HENRY ROBERTS
IPC: G05D23/27
Filed: 1961-03-23
Abstract: 981,887. Automatic temperature control systems. FOSTER INSTRUMENT CO. Ltd. Jan. 12,1962 [March 23,1961], No. 10664/61. Heading G3R. [Also in Division H3] An electrical control system responsive to an electrical input signal dependent on say temperature, comprises a moving coil system 2 motivating an obstruction 4 between a light source 5 and a silicon photo-cell 7 which is connected across a diagonal of a bridge circuit comprising a thermistor 8, a resistor 9 and a transistor 10, the current at balance actuating a relay coil 11, 14 controlling the variable quantity, and energizing a heater 15 which acts to reducethe transistor base drive and hence the relay current to heat the release valve. In a modification a thermistor is substituted for the resistor 9 to reduce ambient temperature effects. Thermistor 9 may have an additional resistor in series so that the combination will give constant voltage at the photo-cell connection point.
Patent GB-1525804-A (GB)
Title: Middle distillate fuel compositions
IPC: C10L1/19
Filed: 1976-03-17
Abstract: 1525804 Middle distillate fuel compositions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 17 March 1976 10696/76 Heading C5G A middle distillate fuel composition comprises a major proportion of a middle distillate fuel and a minor proportion of a filterability improver which is a C 10 -C 40  hydrocarbyl ester of a hydroxy mono- or di-carboxylic acid. The composition may contain a pour point depressant e.g. copolymers of ethylene and vinyl esters, alkyl(meth)acrylates or alkyl fumarates, chlorinated polyethylene, alkylated aromatics, alkylated polystyrene, fully or partially hydrogenated polymers or copolymers of olefins and polyalkyl(meth)acrylates.
Patent GB-943333-A (GB)
Title: Improvements in or relating to alkali metal generators
Inventor: DAVIS GORDON PETER
IPC: H01J40/06
Filed: 1959-03-31
Abstract: An alkali metal generator, for use within an envelope of a device in which a photo-emissive surface, e.g. of Na, K or Cs, is required to be deposited, e.g. on a base layer of Sb, Ag or other metal, comprises an electrically conducting heating element, a powdered mixture of a reducible alkali metal compound, e.g. chromate or bromide, and a reducing agent, e.g. Al, Si or Ca, and a binder for the mixture, e.g. alkali metal silicate, preferably the alkali metal in above compound, with or without tungsten powder as a moderator. An example gives a heating element made from a coil of tungsten wire wound on to a mandrel, and a powdered mixture of 1 part by weight chromate, e.g. Cs2CrO4 and 1 part by weight Al powder, mixed into a paste with the silicate, preferably of Cs, with or without 12 parts by weight W powder. The coil may be dipped into the paste or the element coated, and the Cs may be released from the generator by passing a current through the coil.
Patent GB-381107-A (GB)
Title: The charging of radio high tension accumulators from the low tension accumulator or accumulators without disconnection from radio receiver
IPC: H02J7/00
Filed: 1932-04-15
Abstract: - 381,107. Charging and discharging batteries. WOOD, J., Doverdale, Freeland, Oxfordshire. April 15, 1932, No. 10794. [Class 38 (iv).] The cells of the high-tension accumulator of a radio set are, one at a time, switched in parallel with the low tension accumulator each time the receiver is switched off. The switch S connects alternatively the low tension accumulator C<1> to the terminals T<1> of the receiver or to the rings R, R<1> of a rotary switch S<1> with which contact numbers S<3>, S<4> engage to connect with each one of the cells C of the high-tension accumulator in turn. The switches may be mounted on a panel attached to the frame carrying the high-tension accumulator. An auxiliary accumulator cell may be inserted in series by removing a link L between terminals T<3> and a link L<1> may be removed, to interpose a resistance R<2>.
Patent GB-768772-A (GB)
Title: Amino ketone compounds and methods for producing the same
Filed: 1955-04-14
Abstract: The invention comprises l-a -methylaminopropiophenone and its acid addition salts, and the manufacture thereof by (a) resolution of the racemic base with the aid of an optically-active organic acid, and (b) oxidation of l-ephedrine or an acid addition salt thereof.  The salts, especially those with optically active acids obtained in process (a), may be converted into other salts via the free base or by passing a solution of the salt over an ion exchange resin impregnated with the acid corresponding to the salt desired.  The products possess analeptic activity, and are usually administered in the form of the salts (e.g. the hydrochloride, hydrobromide, phosphate, citrate, maleate, tartrate, camphorsulphonate, succinate, phenylsuccinate or sulphamate).  In examples: (1) and (2) l-ephedrine is oxidized with a solution of sodium dichromate in dilute sulphuric acid, the product being isolated as its hydrochloride, and its d-camphorsulphonate respectively; (3) dl - a  - methylaminopropiophenone (liberated from its hydrochloride) is resolved by fractional crystallization of its d-camphorsulphonate from isobutanol; the d-camphorsulphonic acid may be replaced by l-camphorsulphonic, L-(-)-mandelic, D-(+)-dibenzoyltartaric or D-(+)-phenylsuccinic acid.
Patent GB-405142-A (GB)
Title: Improvements in and relating to seamless containers moulded from fibre pulp
IPC: B65D5/06
Filed: 1933-04-11
Abstract: 405,142. Containers moulded from pulp. PULP INDUSTRIES, Ltd., 19, New Bridge Street, London.-(Baumgõrtner 'Dr. Katz & Co., Ges.; Eiswerder, Spandau, Germany.) April 11, 1933, No. 10850. [Classes 18 and 66.] A tubular container moulded from fibre pulp is formed with the lower end closed, the walls f at the open end being formed with ridges, depressions or other variations in wall thickness to enable the parts forming the end to be folded over inwardly to afford a closure. The folded mouth of the container may be secured closed by means of staples or by pressing together the sides of a doubled strip applied thereover. Reinforcements such as loose bottoms &c. may be provided.
Patent GB-708694-A (GB)
Title: Improvements relating to lubricating systems for internal combustion engines
IPC: F01M5/00
Filed: 1952-04-30
Abstract: 708,694. Lubricating. DAIMLER-BENZ AKT.- GES. April 30, 1952 [April 30, 1951], No. 10910/52. Class 12(3) [Also in Group XXVII] In a lubricating system for internal combustion engines, of the kind in which lubricant from a reservoir is pumped through a cooler to a second pump for supply to lubrication pumps, an excess pressure valve is placed between the cooler and the second feed pump. In the arrangement shown, oil from a sump 1 is withdrawn by a pump 3 and passed through a cooler 4 from which oil is taken by a pump 5 and passed, by way of a filter 6, to lubricating points 7. An excess pressure relief valve 9 is disposed in the circuit between the cooler 4 and the pump 5. A relief valve 10 may also be arranged in advance of the lubricating points. The pumps 3, 5 may be gear wheel pumps mounted on a common driving shaft. The cooler 4 may be arranged,on or combined with the water jacket of the engine or may be constructed to serve as such jacket. The filter 6 may be arranged in advance of the cooler 4.