baber/WOPTO huggingface dataset:
Patent GB-178093-A (GB)
Title: Improvements in fuel injecting devices for internal combustion engines
IPC: F02M67/12
Filed: 1922-03-16
Abstract: 178,093. Krupp Akt.-Ges. Germaniawerft, F. April 2, 1921, [Convention date]. Cylinders receiving liquid fuel. -When the spraying valve C is closed fuel is admitted through the passage L to the lower portion of a sealed air chamber G. On the opening of the valve C the air in the chamber expands and forces the fuel into a main stream of injection air passing through a passage J into the cylinder. The volume of the chamber G may be varied by a ring threaded on the outside of the member B.
Patent GB-685186-A (GB)
Title: Improvements in and relating to 2-pyridyltrimethylsilane
IPC: C07F7/08
Filed: 1951-04-03
Abstract: An additive for silicone oils comprises 2-pyridyltrimethylsilane.ALSO:2-Pyridyltrimethylsilane is prepared by reacting a mixture comprising magnesium, trimethylchlorosilane and a 2-halogenopyridine, and heating the mixture to a temperature of 50 DEG  to 150 DEG  C. to complete the reaction.  Suitable 2-halogenopyridines are 2-bromo- and 2-chloro-pyridine.  Two examples are given.ALSO:Emulsifying agents comprise salts of 2-pyridyltrimethylsilane
Patent GB-453168-A (GB)
Title: Improvements in or relating to two part electrical couplings
IPC: H01R13/703
Filed: 1935-03-13
Abstract: 453,168. Plug-and-socket couplings. CARR FASTENER CO., Ltd., Nottingham Road, Stapleford, Nottingham, and OLIVER, C. W., 79, Ulleswater Road, Southgate, London. March 13, 1935, No. 7808. [Class 38 (i)] A coupling arrangement suitable for enabling an auxiliary loudspeaker or headphones, or a pick-up to be plugged into a wireless receiver comprises a pair of sockets 2, 3, to one of which is attached a conductive strip 4 bent over the end of the socket and normally engaging an independently supported contact strip 6. A plug connected with a loudspeaker (or head-phones) may be partially or fully inserted so as to put the speaker in parallel with, or in place of the loud-speaker e wired to the socket 3 and the strip 6. Alternatively, the plug may be wired to a pick-up to enable this to be substituted for the receiving circuit.
Patent GB-809641-A (GB)
Title: Improved methods of treating semiconductor bodies
IPC: H01L21/00
Filed: 1956-03-13
Abstract: 809,641. Semi-conductors. WESTERN ELECTRIC CO. March 13, 1956 [March 23, 1955], No. 7810/56. Class 37. A semi-conductor body is treated by exposure to the vapour produced by heating at a temperature below its melting-point a solid solution containing a certain concentration of significant impurity for a time sufficient to cause diffusion of the significant impurity into the semi-conductor surface. In this way a vapour pressure of the impurity well below the normal equlibrium vapour pressure is obtained at a temperature suitable for the diffusion process. In. the embodiment a monocrystalline body 14 of P- type Ge is heated with a body 13 of polycrystalline Ge containing 10<SP>19</SP> atoms/c.c. of As by radio frequency induction in a molybdenum oven 11 in evacuated chamber 10. The monocrystal has previously been treated to reduce surface impurities, e.g. Cu, by surface polishing and soaking in potassium cyanide, as described in Specification 750,640, [Group II]. The diffusion results in an impurity distribution as shown by line 20 in Fig. 2. The surface concentration may afterwards be reduced as shown by line 21 (Fig. 2) by a further heating using a charge 13 of lower impurity concentration. To form a junction transistor body a layer of Al may afterwards be fused to the As doped to form a regrown P-type layer on it. The impurity may be contained in a body of Pb or Sn or another semi-conductor instead of Ge but a semi-conductor is preferable since it enables the impurity concentration to be readily determined by a resistivity measurement. Body 13 may be in the form of a lining on the furnace wall. The technique may be used to form extrinsic layers on intrinsic bodies or to form a series of rectifying junctions by a succession of steps in which bodies 13 containing different impurities are used. Si, Ge-Si alloys, and AIII BI compounds such as indium antimonide and aluminium arsenide may also be treated and other donors such as P, Sb, Bi and acceptors such as A1, In, Ga used in the process. Specifications 669,399 and 809,642 are referred to.
Patent GB-136432-A (GB)
Title: Improved Combination Range and Sitting Room Grate.
Inventor: BROWN JAMES
IPC: F24B1/182
Filed: 1919-03-28
Abstract: 136,432. Brown, J. March 28, 1919. Cooking-stoves.-A combination range and sitting-room fire-place consists of a fire-grate 1, an oven at one side of it, and a hinged hot-plate 3 adapted to be swung upwards into a position, shown in dotted lines, inclining forwards from bottom to top. The stove may have a boiler 8 with connexions 9 which are concealed when the hot-plate is raised. As it is raised, it opens the damper 14 by means of the push-rod 15 and the lever 12. It is retained in its raised position by one or more catches 10. The oven side of the grate consists of a grated brick 6, through which the gases flow to both the bottom and near side flues and thence to the top oven flue.
Patent GB-870706-A (GB)
Title: Improvements in sewing machines of the class having a work-trimming knife
IPC: D05B37/04
Filed: 1959-03-06
Abstract: 870,706. Sewing machines. SINGER MANUFACTURING CO. March 6, 1959 [April 15, 1958], No. 7944/59. Class 112 A sewing machine which has a knife which is shiftable from an operative, work trimming, position to an inoperative position has means effective when the knife moves to the latter position to move a knife guard into a position where it shields the knife. The machine described has a post 11 to facilitate handling of the work. The knife blade comprises a sharpened lip 23 depending from a knife member 20 secured to a carrier 22 itself fixed to a tubular, knifedriving, shaft 24 journalled in bearings 25 on the post. A spring loaded plunger 28 at one end of a rock arm 27 secured to the lower end of the knife driving shaft engages a socket 29 formed in one arm 30 of a bell crank lever the other arm of which is oscillated by a rotary knife actuating shaft. Depression, by the operator, of a push rod 37 slidable within the shaft 24 operates a lever 38, pivoted on the rock arm, to lift plunger 28 clear of the socket 29 and disconnect the arm 27, and hence the knife, from the knife driving bell crank lever. A torsion spring 41 disposed about the shaft 24 then rotates the shaft and the knife into the inoperative position (Fig. 3). As this shaft rotates a cam lug 61, formed on the hub of a lever 45 secured to the shaft, rotates a block 51, pivoted to the post 11, against the action of a return spring 57. The knife guard 59, carried on a rod 50 attached to the block, is thus moved to a knife guarding position below the knife blade 23. The knife can be returned by the operator to the operative position, against the action of the spring 41, by means of the lever 45, the plunger 28 riding up the face 47 of the bell crank lever to enter the recess 29 and re-establish the driving connection. The guard 59 is then moved back into its retracted position against the post by the spring 57.
Patent GB-1071756-A (GB)
Title: Colour band linear indicator
IPC: G01P1/08
Filed: 1965-02-24
Abstract: 1, 071, 756. Indicating-apparatus; indicating particular speeds. PIAGGIO & C. S. P. A. Feb. 24, 1965 [March 3, 1964], No. 7964/65. Headings G1J and G1K. Indicating-apparatus comprises an element 1 turned by a speedometer shaft 2 behind a dial 3 to indicate speed by the apparent linear movement of the border line 5 as viewed through a slit 4. The line 5 is an involute curve based on a circle 6 to which the lower edge of the slit 4 is tangent. The background may be white and the element 1 red or it may have say four sectors of different colours or tones, Fig. 3 (not shown). For co-operating with a centralling placed slit 4, Figs. 4, 5 (not shown) the centralling placed shaft 2 carries an element 1 having two intersecting involute edges, 5, 5' based on the same circle 6. The edges 5, 5' border red and white sectors of the element 1 respectively and the background corresponds in colour over its lower and upper halves so that the red background is uncovered progressively by the white sector over the lower half of the scale and the white background is covered progressively by the red sector over the upper half. The element 1 may be made of metal or plastic, moulded or cast and may be counter weighted.
Patent GB-453704-A (GB)
Title: Process for the pickling of metals
IPC: C23G1/08
Filed: 1935-03-14
Abstract: Iron or iron alloy is pickled to provide a blank surface suitable for subsequent enamelling, painting, or metallizing, by immersion in an oxidizing pickling bath heated to above 50 DEG  C. which contains an acid and not more than 5 per cent of a salt the anion of which is different from that of the acid and the cation of which is more electropositive than iron, the initial concentration of the acid being so low that as the pickling proceeds it falls to a value at which hydrolysis occurs, the pickling taking place with precipitation of insoluble basic iron compounds.  Fresh acid is added to the bath in such small quantities that hydrolysis is not prevented.  A mixture of acids may be employed, the anion of the acid present in largest amount being different from that of the salt.  If a mixture of salts is used the anion of the salt present in largest amount must be different from that of the acid and the cations of all the salts must be more electropositive than iron.  Examples of pickling baths are (a) 1 per cent of nitric acid and 2 per cent of magnesium sulphate, (b) 1 per cent of hydrochloric acid and 2 per cent of sodium nitrate, and (c) 1 per cent of sulphuric acid and 2 per cent of potassium nitrate.  If the iron is heavily rusted the rust may be first removed in a stronger acid solution, e.g. 2 per cent of sulphuric acid and 2 per cent of potassium nitrate, and the blank pickling then effected in a bath of 0,25 per cent sulphuric acid and 2 per cent potassium nitrate.  British Specification 412,244 and U.S.A. Specification 1,824,932 are referred to.
Patent GB-1206431-A (GB)
Title: Oxidation of alkanes and cycloalkanes
Inventor: ELLIOTT CHRISTOPHER STUART
IPC: C07C45/33
Filed: 1967-02-20
Abstract: 1,206,431. Oxidation of alkanes and cycloalkanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 Feb., 1968 [20 Feb., 1967], No. 8003/67. Heading C2C. Alcohols, ketones, acids and/or esters are produced by oxidation of alkanes and cycloalkanes, preferably containing up to 20 carbons, with molecular oxygen in the liquid phase in the presence of an organic vanadium complex or the vanadium salt of an organic acid, or of any vanadium compound and another transition metal chosen from the first transition series (i.e. Sc-Zn inclusive) and in the substantial absence of any boron-containing compound. Both of the transition metal compounds are present in 0À00001-1% by weight and the second catalyst is preferably a copper or cobalt carboxylate. The reaction may be carried out using an oxygen/inert gas mixture containing 5-20% by volume oxygen, at a pressure in the range 15-600 p.s.i.g., at a temperature in the range 90-190‹ C. or in an inert solvent. The volatile by-products may be immediately removed and some of the product of the process containing peroxide may be recycled to the reaction zone to act as an initiator. Alternatively, initiators such as azo compounds, hydroperoxides and peroxides may be added. In the examples cyclohexane is oxidized to cyclohexanol, cyclohexanone and adipic acid and cyclooctane is oxidized to cyclooctanol, cyclooctanone, adipic and stearic acids and their esters.
Patent GB-517365-A (GB)
Title: Process for the treatment of metallic baths by certain solid materials
IPC: F27D27/00
Filed: 1938-03-15
Abstract: 517,365. Refining metals. SOC. D'ELECTRO-CHIMIE, D'ELECTRO-METALLURGIE, ET DES ACIERIES ELECTRIQUES D' UGINE. March 15, 1938, No. 8040. Convention date, March 16, 1937. Drawings to Specification. [Class 82 (i)] Molten metal containing impurities is treated, without the application of external heat, with a solid reagent which is of less density than the metal, is insoluble therein, and does not melt at the temperature of the reaction, by introducing the metal and reagent into a container and rocking or rotating the container so that the whole of the metal and reagent are repeatedly and violently poured together and the reagent is distributed throughout the metal. The apparatus may comprise two chambers placed mouth to mouth and mounted on an axis. If the reaction is such as to form a gaseous or volatile product, the speed of the reaction may be regulated by slowing down the apparatus or by introducing the reagent in regulated proportions or in a less divided.form. The process may be applied to the deoxidation of copper by carbon, for example, wood charcoal. Specifications 297,759, 303,094, [both in Class 82 (i)], 517,366, and 517,367, are referred to.
Patent GB-453658-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H03J3/06
Filed: 1935-03-15
Abstract: 453,658. Valve circuits for wireless reception. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Case, N. P.; 38, 208th Street, Bayside, New York, U.S.A.) March 15, 1935, No. 8188. Convention date, April 25, 1934. [Class 40 (v)] To compensate for changes in the amplitude of the local oscillations in a heterodyne receiver, a regenerative mixing valve has its regeneration varied by a biassing voltage derived from said oscillations. As shown, a superheterodyne receiver comprises a frequency-changing valve 16 which is rendered regenerative by the condensers C11, C7 connected between the anode and cathode and the grid and cathode respectively. A voltage depending on the amplitude of the oscillations produced by the local oscillator V7 appears at the grid thereof by virtue of the grid condenser and leak C12, R and is applied through the filter R2, R3, C15 to bias the control grid of valve V6. A combined modulator-oscillator valve may replace the valves V6, V7, Fig. 1 (not shown). The Specification as open to inspection under Sect. 91 comprises also a circuit in which the compensating bias is applied to an intermediate frequency amplifier. This subject-matter does not appear in the Specification as accepted.
Patent GB-1276485-A (GB)
Title: Stoppers for necked bottles
Inventor: PLURA PAUL
IPC: B65D39/12
Filed: 1971-04-01
Abstract: 1276485 Container closures P PLURA 1 April 1971 8433/71 Heading B8T An expansible stopper has a flexible stem 2 inserted into a bottle neck 3, a cap 4 to bear against the neck end 5, a screw 6 passing through the stem, and a member 7 inside the stem with which the screw engages. The internal bore of the stem decreases upwards. As the screw is turned by means of a knob 11, the member 7 is drawn up inside the stem, so forcing the stem out against the bottle neck and drawing the cap down against the neck end. The stem 2, formed with flexible tongues 8, bears against a rubber sleeve 13 attached to a sealing flange 12.
Patent GB-453851-A (GB)
Title: Improvements in abrasive belts
IPC: B24D11/00
Filed: 1935-03-18
Abstract: 453,851. Abrasive belts. CARBORUNDUM CO., Niagara Falls, New York, U.S.A. March 18, 1935, No. 8436. Convention date, May 21, 1934. Drawings to Specification. [Class 60] An abrasive belt consists of a plurality of independent transverse sections of abrasive coated fabric or paper secured to and spaced apart lengthwise of a plain backing of uniform thickness. The sections may be arranged obliquely on the backing and when woven fabric is used the woof and warp threads are preferably arranged obliquely. Each section may be of uniform or varying hardness and the hardness of the sections may differ. The spaces between adjacent sections may be filled with strips of fibrous material such as felt, grease or wire brushes. The belt may be stretched about a plurality of pulleys or set around the periphery of a drum. The adhesive securing the segments to the belt may be non- drying to facilitate replacement of worn segments. The segments may be made with an adhesive coating which is protected by a removable backing of paper or cloth. Specifications 16840/04 and 264,624, [both in Class 60], are referred to.
Patent GB-590014-A (GB)
Title: Improvements in or relating to forks for motor cycles or like velocipedes
IPC: B62K25/08
Filed: 1945-04-06
Abstract: 590,014. Cycle forks. BIRMINGHAM SMALL ARMS CO., Ltd., PERKINS, H., and PERRIGO, A. E. April 6, 1945, No. 8502. [Class 136 (iii)] A motor-cycle fork comprises a pair of laterally spaced members 3 provided with lugs 17 adapted to receive the front wheel spindle, and eccentrically disposed so that their positions relative to the axes of the members may be adjusted to allow the wheel trail to be changed. The lugs 17 are of cruciform shape and have limbs 19, 21 of unequal size for the attachment of mudguard stays. The lugs are welded to the lower ends of the tubular members 3 which may be turned through 180 degrees in upper telescopic portions 1 so that the wheel spindle recesses 29 may be either in front of or behind the'axes of the members 3 to give a shorter or longer wheel trail according to whether a side-car is attached or not. Specification 571,486 is referred to.
Patent GB-847006-A (GB)
Title: Improvements in load-lifting mechanism
Inventor: LIGHTOWLER LESLIE ERNEST
IPC: B66F7/02
Filed: 1958-03-18
Abstract: 847,006. Load-handling machines. LAYCOCK ENGINEERING Ltd. Feb. 3, 1959 [March 18, 1958], No. 8570/58. Class 78 (3). A load-lifting device comprises a pair of vertical interconnected channel-section members 11 forming guides for rollers 41 mounted on a load carrier 27, 44 which carries a motor 28 driving a nut 22 engaging a stationary screw 17. Limit switches (not shown) are provided to stop the motor at the ends of travel of the carrier, and an auxiliary safety nut is provided to prevent the carrier falling in the event of the threads in nut 22 stripping. In a modification (Fig. 6, not shown), the platform 44 of the carrier is replaced by a tipping hopper, and the base of the device is provided with ground wheels. In a further modification (not shown), the device is provided with a pair of spaced screws engaging synchronously driven nuts.
Patent GB-371133-A (GB)
Title: Improvements in or relating to road vehicles for transporting livestock
IPC: B60P1/43
Filed: 1931-03-20
Abstract: 371,133. Animal-carrying vehicles. HODGKINSON, J. G., Livestock Department, Chief Goods Manager's Office, Euston Station, London. March 20, 1931, No. 8645. [Class 108 (i).] In animal-carrying vehicles ramps of different sizes and suitable to the kind of animal which will use the ramp are provided the ramps being so disposed that the vehicle being divided into upper and lower stories, different ramps are employed for the upper and lower stories. The ramps a, b are pivoted to the vehicle as shown and are foldable so that they may be folded up and at the same time act as tail gates. Rails y are provided. Bars dare provided to bar the end of the upper storey t. Positioning pins v<2> and sockets v<1> are provided.
Patent GB-1046287-A (GB)
Title: Improvements in or relating to composite doors
Inventor: MUNK EDMUND
IPC: E06B3/70
Filed: 1965-03-01
Abstract: 1,046,287. Doors. FORMWOOD Ltd. March 1, 1965, No. 8654/65. Heading E1J. A composite door comprises a frame 1, the whole or part thereof and the core 5 of corrugated or latticed form being pressed integrally from a mixture of comminuted fibrous material and a thermosetting binder and the frame part normally visible being covered with a layer of plastics material 4 preferably, during the pressing operation. The portions of the frame 1 engaging facing boards 6 are not covered by the plastics material 4 and the frame is provided with an undercut rabbet 3 to receive the facing boards 6 which are covered with a layer 4 of plastics material and are glued to the contact surfaces 7 of the frame 1 and the core 5. The parts of the frame not-pressed out with the core may be jointed, e.g. by mitred joints to those parts pressed out integrally with the core.
Patent GB-850749-A (GB)
Title: Improvements in dust wetting means and in handling means for the disposal of slag orash and dust collected in a boiler
Inventor: GREENHALF THOMAS FRANK
IPC: F23J3/06
Filed: 1958-03-19
Abstract: 850,749. Collecting flue dust. BABCOCK & WILCOX Ltd. March 13, 1959 [March 19, 1958], No. 8795/58. Class 51 (1). Dust, which may be collected from the gas path of a boiler furnace, falls from a hopper down a pipe 18 on to a conical interceptor 28. A spray 46 wets the dust, which falls on to the bottom 8 of the chamber 2. The hinge 64 and counterweight 60 of the bottom 8 are arranged so that a predetermined amount of wetted dust on the bottom door 8 opens it and falls on to a conveyor 70, Fig. 3. The lining of the chamber 2 and the interceptor 28 are formed of abrasion and corrosion resisting material such as stainless steel. The hinge 64 for the bottom 8 is mounted on the side of the chamber 2 above the level of the bottom so that the plate 8 swings sideways as well as down to give a clear fall for the dust.
Patent GB-477245-A (GB)
Title: Silencer especially for damping the noise of the exhaust of internal combustion engines
IPC: F01N13/20
Filed: 1937-03-25
Abstract: 477,245. Exhaust, and like silencers. KAUP, K., and LUCK, J. March 25, 1937, No. 8811. Convention date, July 29, 1936. [Class 7 (ii)] The exhaust conduit is connected to a series of tubes each formed with one or more spherical enlargements arranged one after the other without hindering the free exit of the gases. The Figure shows the exhaust pipe 1 leading to an expansion chamber 2, to which are connected a number of tubes 3 formed with enlargements 4. The tubes may lead directly to the atmosphere, and may be spread fanwise as shown; or they may be arranged in a casing so that the several streams of gas reunite in the end of the casing before escaping through a flared exit. The tubes may lead from the several exhaust valves of an engine.
Patent GB-143199-A (GB)
Title: Improvements in resilient buffers for motor vehicles
IPC: B60R19/48
Filed: 1920-03-26
Abstract: 143,199. Newton, R. T. May 15, 1919, [Convention date]. Brackets for mounting and securing reserve tyres on vehicles.-An obstruction-remover for the front or rear of a motor or like vehicle which may also serve as a security device for spare tyres comprises a main transverse resilient buffing member or bar 10 connected to the side bars 25, 26 of the vehicle, and an auxiliary spring member 36 detachably connected to the mid-point of the main member 10 and also attached to the vehicle, the two members when detached at their point of connexion being capable of being moved apart without being detached from the vehicle. In the construction shown in Figs. 1 and 2, the ends 19, 20 of the bar 10 are attached to brackets 21, 22 pivoted at 23, 24 to the rear ends of the bars 25, 26 and the ends 34, 35 of the spring 36 are attached to a transverse rod 29 extending between the bars 25, 26, so that, when the bolt 37 connecting the two spring members 10, 36 is removed, the member 10 can be swung down about the pivots 23, 24. The spring member 36 is arranged to pass through the circular portion 47 of a carrier 48 for spare tyres, and a padlock 42 is passed through an eye 40 in the bolt 37 so as to lock the members 10, 36 and prevent unauthorized removal of the tyres. A sheath 43 may be applied to the padlock to prevent the shackle 41 from being cut. In a modification, the main impact member 10, instead of pivoting on the side-bars 25, 26, may be slidably connected thereto so that the members 10, 36 may be separated when the bolt 37 is removed. Or, the main member 10 may be rigidly attached to the vehicle, and the auxiliary member 36 pivoted. Specification 108,662, [Class 103 (ii), Rail and road vehicles, Details applicable &c. to], is referred to.