baber/WOPTO huggingface dataset:
Patent GB-178495-A (GB)
Title: Improvements in and relating to the insulation of cold storage chambers, ships' bulkheads, deckings, or the like surfaces against heat conduction
IPC: B63B3/68
Filed: 1920-12-16
Abstract: 178,495. Davies, J. Dec. 16, 1920. Cold-storage rooms.-Relates to a method of employing cork to insulate surfaces against heat conduction, particularly on board ship where the presence of stiffeners on the bulkheads necessitates a great thickness of cork. Cork slabs 1, Fig. 1, are moulded with apertures 2 passing through them or recesses or grooves sunk in them; these are built up against a primary cork covering a on the bulkhead b, Fig. 7, coated with bitumen, and enclosed by an outside cork covering c also coated with bitumen, so as to form air-tight cellular pockets. This is repeated until the required thickness is attained, and the final cork covering may be coated with an oxychloride cement e. In modifications, the recessed slabs are used face to face or against plane cork surfaces.
Patent GB-904881-A (GB)
Title: Food additive, food compositions containing same and process for preparing food compositions
Inventor: MELNICK DANIEL
IPC: A23L3/3463
Filed: 1959-10-19
Abstract: A food preservative, especially for ready-to-eat salads and spreads of potato, macaroni, meat, fish, egg, cabbage, red and green peppers, onion and celery with French dressing of oil and vinegar, mayonnaise of oil, vinegar and egg yolk or salad dressing of oil, vinegar, egg yolk and cooked starch paste, comprises 0.0013-133 parts of ethylenediaminetetraacetic acid or a soluble salt thereof such as disodium or disodium calcium ethylenediaminetetraacetate to one part of an edible fungistat such as a saturated lower aliphatic or an alphabeta unsaturated carboxylic acid, e.g. propionic, diacetic, sorbic, alpha-hexenoic, benzoic, parahydroxybenzoic, crotonic, isocrotonic, betaethylacrylic or dimethylacrylic acid, or a methyl, ethyl or propyl ester or sodium, potassium, magnesium or calcium salt thereof.  The food preserved is preferably of pH 3-6, examples of the acidifying agents being acetic, citric, lactic and phosphoric acids.
Patent GB-356577-A (GB)
Title: Process for the manufacture of fast dyeings and prints with vat dyestuffs
IPC: D06P1/28
Filed: 1930-11-25
Abstract: In the process for dyeing and printing by means of ester salts of leuco vat dyes by the process of the parent Specification, aluminium chlorate is employed as oxidizing agent.  The use of substances yielding acid on steaming (see Specifications 281,336 and 306,800, [both in Class 15 (ii), Dyeing, Processes &c. for],) and oxidation catalysts is thereby rendered unnecessary.  In examples, cotton is printed with pastes containing the leuco ester salts of 5 : 51 - dichlor - 7 : 71 - dimethylthioindigo, 5 : 7 : 51 : 71-tetrabrom indigo or of the dyestuff from a -isatinanilide and 1-methyl-7 : 8-(11-oxybenzo)-carbazole, thiodiethyleneglycol, gum tragacanth, and aluminium chlorate, and the prints are dried, steamed, and soaped. Specification 186,057, [Class 15 (ii), Dyeing, Processes &c. for], also is referred to.
Patent GB-840525-A (GB)
Title: Multi-range echo sounding system
IPC: G01S1/72
Filed: 1957-11-14
Abstract: 840,525. Echo-sounding. BENDIX AVIATION CORPORATION. Nov. 14, 1957 [Dec. 3, 1956], No. 35538/57. Class 40 (7). [Also in Group XIX] The transmitter of a multi-range echo sounder is triggered in selectable phase relative to recording initiation by a single adjustment. Transmitter 26 pulses when adjustable keying switch 28 and gating switch 29 close together via range switch 32. Pulleys 15, 16 make four and three revolutions respectively between successive entries of stylus 13 into the recording path, the length of which is that of pulley 15 periphery; belt 14 is four times recording path length. The range chosen is indicated by a fixed stylus via switch 38. Generally, for n consecutive ranges diameter of pulley 15/diameter of pulley 16 is (nŒ1)/n. Lack of synchronism of driving-motor M with its A.C. supply is indicated by marks 45 made by operating switch 23, pulley 17 being chosen such that the transmitted pulse repetition period is a multiple of A.C. supply period. Overlapping ranges may be provided, Fig. 3 (not shown).
Patent GB-326142-A (GB)
Title: Improvements relating to fire-extinguishing apparatus
IPC: A62C35/64
Filed: 1928-12-03
Abstract: 326,142. Woosnam. A., (Automatic Sprinkler Co. of America). Dec. 3, 1928. Alarms operated by expansion of gases and by movement of working parts of extinguishing apparatus; pneumatic alarm apparatus.-In sprinkler apparatus wherein increase of air pressure in a supplemental piping system operates a main valve controlling the supply of an extinguishing medium to sprinkler pipes, an alarm is given whether the pressure in the supplemental piping rises owing to fire or falls owing to leakage. As shown, a supplemental piping 3 containing air under pressure includes air chambers 2. In case of fire, the air in the chambers expands and acts on a diaphragm 5. The chambers might be replaced, for example, by bellows designed to transmit a pressure impulse through the piping 3 under control of a thermal release. The diaphragm is stretched between chambers 4, 4' kept normally at the same pressure by a " bleeder " 7. In case of fire, the diaphragm is pressed down, and swings a rod 21 to release a weighted lever 39 which, in falling, closes a switch 40 in the circuit of a. bell 41. The lever 39 also opens a relief valve 35 permitting the main valve 31, 32 of the sprinkler system 30 to open. In case of leakage in the piping 3, the diaphragm rises, again moving the rod 21 to release the lever 39. The rod 21 passes through a flexible diaphragm 19, providing an air-tight seal for the chamber 4<1>. Specifications 326,140; 327,435 and 327,436, [both in Class 47 (ii), Fire extinguishing &c.], are referred to.
Patent GB-1068869-A (GB)
Title: Improvements in or relating to comb type microwave band pass filter structures
IPC: B60P3/07
Filed: 1964-09-01
Abstract: 1,068,869. Masers. WESTERN ELECTRIC COY. Inc. Sept. 1, 1964 [Sept. 3, 1963], No. 35677/64. Heading H1C. Broad band matching of a microwave coaxial line to a comb type, slow-wave filter structure is produced by widening the bandwidth of the filter at its input end. The matching section comprises a coupling probe 13, Fig. 4, and the first few (e.g. four) elements 11 of the iterative filter structure are arranged so as to have a tapering bandwidth from a maximum at the probe end to a minimum equal to that of the filter at the other end. Broadbanding of the elements in the matching section is accomplished by separately increasing the upper cut-off frequency and decreasing the lower cut-off frequency by varying the capacitance of the resonant circuit responsible for each cut-off frequency. The filter structure operates as a travelling wave maser when a suitable active medium such as ruby is used as the dielectric loading material. Decreasing the lower cut-off frequency. In Fig. 4 a tapered metallic or dielectric shim 40 is inserted between the dielectric loading material 41 and an adjacent wall of the rectangular waveguide housing, the tapered formation providing a graded decrease of capacitance inwardly from the probe 13. In an alternative arrangement, Fig. 6 (not shown), the dielectric loading material 61 is stepped adjacent the comb ends, and a wedge 60 tapered towards the filter is placed in the step, the wedge being formed of dielectric material, metal, or dielectric material coated with copper. The use of a coated wedge enables a metallic body to be used which matches the dimension changes of the loading material when the filter is cooled to a low operating temperature. Increasing the upper cut-off frequency. In Fig. 8 (not shown), the dielectric loading material 80 is tapered adjacent the first few (e.g. five) comb elements 81 with maximum height reduction, and hence maximum raising of the cut-off frequency, occurring at the first element. In Fig. 9 (not shown), the first few comb elements 90 have graded reductions in width, the narrowest comb element being adjacent the probe 93. Bandwidth tapering is achieved in Fig. 10 (not shown) by inclining the first few comb elements 102 to provide graduated spacings with the greatest spacing adjacent the probe. Ceramic spacers 100 may be used to maintain uniform positioning of the comb ends.
Patent GB-820211-A (GB)
Title: Improvements in or relating to devices for drawing off sterilized liquids from a vessel
IPC: A61L2/26
Filed: 1955-12-13
Abstract: 820,211. Preserving liquids. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 13, 1955 [Dec. 16, 1954], No. 35747/55. Class 49. A device for use in preventing contamination of liquids when drawing off from a vessel in which they have been sterilized comprises a tube extending inwards from the outlet of the vessel and having a horizontal part in communication with a chamber or vertical tube open at or near its lower end, the arrangement being such that when the vessel is filled, the outlet being closed, no liquid enters the horizontal part. In one form, the horizontal part 5, Fig. 1, extending inwardly from the outlet 3 of the tank, is formed integral with the vertical tube 6, being connected thereto by the section 7. In another form, the horizontal part 5 has the section 7 ending near the top of a chamber 12, Fig. 3, the upper end of the tube 6 terminating at a lower level than the end of the section 7. In a further modification the horizontal part is connected with the top of a chamber having an opening at the bottom.
Patent GB-338009-A (GB)
Title: Improvements in illuminated advertising signs
IPC: G09F11/02
Filed: 1929-11-22
Abstract: 338,009. Wilhelm, K. M. Nov. 24, 1928, [Convention date]. Prisms, rotating.-An intermittently rotatable advertising prism has display faces 4, 5, 6 illuminated in turn from the rear by an external lamp 12 light from which, with the aid of reflectors 13, 14, reaches the display faces directly through longitudinal peripheral apertures 7, 8, 9 in the prism. Light from the lamp 12 is thus available for illuminating external objects, and may be reflected thereon by a mirror 15. Two prisms may be illuminated by a single lamp, which may also illuminate external objects or have all its light reserved for prisms. The displays may be built up of exchangeable panels, and are viewed through windows 11 in a casing 10. More than one face of the prisms may be illuminated and visible at a time.
Patent GB-512599-A (GB)
Title: Improvements in and relating to slicing machines
IPC: B26D7/32
Filed: 1938-12-08
Abstract: 512,599. Slicing machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd. Dec. 8, 1938, No. 35781. Convention date, Dec. 9, 1937. [Class 28 (ii)] In a slicing-machine, the means for turning the slice-stacker conveyer to-and-fro is adapted to impart to said conveyer, a greater extent of turning during the return movement of the substance-supporting carriage than during the forward movement thereof. As shown, the conveyer 5 is actuated by a cam 8 on the shaft of the carriage-actuating crank, the cam having a cam-groove which is engaged by a roller 9 on a lever 11, 12 pivoted at 10 and having its end 12 formed as a toothed quadrant 13 meshed with a gearwheel 14 on the conveyer shaft 4. The cam-groove is so designed that the conveyer reaches its slice-discharging position, the slice is discharged by the fly 16, and the conveyer again starts on its advance to the knife whilst the carriage is still receding from the knife. A short dwell 15 in the cam permits the fly to discharge the slice.
Patent GB-1012237-A (GB)
Title: A process for the preparation of carboxylic acids
IPC: C07C51/255
Filed: 1962-09-20
Abstract: Mono or dicarboxylic acids of the general formula <FORM:1012237/C2/1> wherein R1, R2 and R3 are organic groups bound with a carbon atom to the carbon atom indicated, and n is 1 or 2 with a proviso that when n is 2 the groups R1, R2 and R3 need not be identical and that at least one of the groups may be a valency bond, are made by a process which comprises contacting a ketone having the general formula <FORM:1012237/C2/2> with molecular oxygen or a molecular oxygen containing gas in the liquid phase, and in the presence of an acid having a dissociation constant not higher than 10-3, and an oxidation catalyst which is preferably a salt or a mixture of salts of cobalt, manganese and/or cerium. One of the R groups is preferably an unsubstituted aromatic nucleus or such a nucleus substituted with one or more hydroxyl groups, alkyl groups containing up to four carbon atoms, or halogen atoms, most preferably a benzene nucleus. A further class of starting materials comprises those wherein the R groups ar halogen substituted or unsubstituted alkyl groups having up to eight carbon atoms each for example methyl, ethyl, isopropyl or octyl groups.  A further suitable starting material has a general formula. <FORM:1012237/C2/3> wherein R represents a hydrogen atom, a halogen atom, a hydroxyl group or an alkyl group having up to six carbon atoms, especially a methyl, ethyl or isopropyl group.  One of R groups in the first formula may have the form Ar-R1-Ar1 wherein Ar's are OH, alkyl, halogen substituted or unsubstituted aryl groups and R1 may be -O-, -CO-, -SO2-, or -C(CH3)2-, the especially suitable being symmetrical as represented by the formula <FORM:1012237/C2/4> The amount of acid used in the reaction is preferably at least n gram-equivalents of the acid per mole of the ketone, n having the same value as in the formula of the ketone use. The acid may be a halogen substituted or unsubstituted carboxylic acid having not more than 10 carbon atoms in the molecule, especially acetic acid.  Other preferred features of the reaction include the use of anhydrous conditions, a temperature not higher than 200 DEG  C. especially within the range of 50-160 DEG  C.  In the examples beta-methyl-beta-phenylbutyric acid is prepared starting from 4-methyl-4-phenyl-2-pentanone using manganese triacetate in glacial acetic acid medium.  The methyl ester of the product is obtained by esterification under the influence of hydrogen chloride.  As by-product 2-methyl-2-(o-carboxyphenyl) propanal is obtained.  In the preparation of beta - methyl - beta - (p - tolyl)-butyric acid, from 4-methyl-4-(p-tolyl)-2-pentanone using manganese triacetate and glacial acetic acid 2 - methyl - 2 - (p - methyl - o-carboxyphenyl) propanal is obtained as by-product. Similarly 4-methyl-4-(p-bromophenyl)-2-pentanone is converted to beta-methyl-beta-(p-bromophenyl) butyric acid and 1,4-bis-(1,1-dimethyl-3-oxo-butyl) benzene is converted to 1,4 - bis - (1,1 - dimethyl - 2 - carboxyethyl)-benzene and the latter was converted to the dimethyl ester.
Patent GB-881582-A (GB)
Title: A process for the manufacture of the alkali metal salts of urea
IPC: C07C273/02
Filed: 1958-11-07
Abstract: Alkali metal cyanates are produced when alkali metal salts of urea are heated.  Potassium cyanate formation commences at about 75 DEG C., and sodium cyanate at about 95 DEG  C.ALSO:Alkali metal salts of urea are prepared by intimately mixing solid urea with a solid alkali metal alcoholate having at most 3 carbon atoms in a state of fine subdivision, and reacting the mixture at below 100 DEG C.  The sodium salt is advantageously prepared at below 95 DEG C., and the potassium salt advantageously below 75 DEG C.  A minimum temperature of 25 DEG C. is apparently necessary.  Moisture is preferably absent, and reduced pressure may be used.
Patent GB-1473393-A (GB)
Title: Brake cylinder assemblies for motor vehicles
IPC: F16D65/28
Filed: 1974-08-15
Abstract: 1473393 Combined single-chamber spring-loaded brake cylinder assembly ROBERT BOSCH GmbH 15 Aug 1974 [16 Aug 1973] 35914/74 Heading F1D A brake cylinder assembly 1 for a vehicle comprises a compressed air single-chamber brake cylinder 2 including a piston 6 having a piston rod 12, and a spring-loaded compressed-air released brake cylinder 3 including a piston 16 having a hollow piston rod 13; an annular gap 14 is formed between piston rods 12, 13 which gap 14 connects with a radial passage 25 in a support flange 26 of the assembly 1 the passage 25 having a connection 29 to a flexible breather pipe 30. By this means the spring chamber 21 of cylinder 3 and a return spring chamber 11 of cylinder 2 can breathe to the outside atmosphere. The return spring chamber 11  connects directly with annular gap 14, and chamber 21 connects with gap 14 via a radial opening 23 in a cylindrical extension 24 of a partition 22 against which the energy storing spring 17 abuts. Piston rod 13 has a transverse opening 28 for connection of gap 14 with passage 25 and the connection is sealed by a bellows 27. In use, the cylinder 2 is actuated by the supply of compressed air to a chamber 8 via a service brake line 10. The cylinder 3 has a chamber 18 connected to a parking or auxiliary brake line 20. Fig. 2 shows two assemblies 1, 1', with pipes 30, 30' extending along a carrier 31 and joined by a T-piece 32 to a common pipe 33 leading to an elevated location on the vehicle.
Patent GB-629176-A (GB)
Title: Improvements in or relating to spring-controlled devices
IPC: F16H35/00
Filed: 1946-12-05
Abstract: 629,176. Latches; door-operating appliances. WEIGHELL, H. Dec. 5, 1946, No. 36088. [Classes 44 and 65 (i)] [Also in Group XXXII] A spring-controlled device comprises two springs disposed under compression at opposite sides of the member to be controlled or operated by the springs, with the inner ends of the springs abutting against a pivotal connection to the member, and the outer ends of the springs pivotally abutting against relatively stationary bearings so that they are symmetrically inclined to the member at opposite sides thereof and the angle of inclination of the springs to the member varies progressively as the member is operated, with a corresponding variation in the spring pressure acting on the member. In the forms shown in Figs. 3 and 4 as applied to a latch C<SP>1</SP> and door-closing member C<SP>2</SP> respectively, the springs A, B are disposed around rods A<SP>1</SP>, Bi, pivoted at their inner ends to the latch C<SP>1</SP> or the member C2, and the outer ends of the springs bear on collars or washers F which have a pivotal bearing on fixed abutments G. In each case, as the sliding latch or member is operated, the angle of inclination of the spring thereto, and consequently the component of the spring pressure, is progressively varied. Preferably, the spring pressure is arranged to increase as the latch moves to the projected position, and in the case of the door closing member C<SP>2</SP> is arranged to be a maximum when the door is fully closed. The movement of the springs may be made sufficient to pass the dead-centre position so that spring pressure is exerted on the member in the opposite direction thus holding the door open.
Patent GB-1056720-A (GB)
Title: Improved method of epitaxially vapour depositing semiconductor material
IPC: H01L21/00
Filed: 1965-08-24
Abstract: In a method of epitaxially depositing a semi-conductor material on to a semi-conductor substrate, the deposition is temporarily stopped. A silicon or germanium substrate is heated by R.F. coils in a quartz chamber and a gaseous mixture of hydrogen and silicon tetrachloride is passed through the chamber to deposit silicon on the substrate, after, e.g. 1/2 to 5 minutes, the flow of vapour is stopped and hydrogen only is passed through the chamber, after 5 minutes, the flow of vapour is recommenced and the deposition of silicon resumed. The substrate may have antimony as an impurity.ALSO:In a method of epitaxially depositing a semi-conductor material on to a semi-conductor substrate the deposition is temporarily stopped. A silicon or germanium substrate is heated by R.F. coils in a quartz chamber and a gaseous mixture of hydrogen and silicon tetrachloride is passed through the chamber to deposit silicon on the substrate, after, e.g. 1/2 to 5 minutes, the flow of vapour is stopped and hydrogen only is passed through the chamber, after 5 minutes, the flow of vapour is recommenced and the deposition of silicon resumed. The substrate may have antimony as an impurity.
Patent GB-902084-A (GB)
Title: Radial face rotary buffing element
IPC: B24D13/16
Filed: 1958-11-11
Abstract: 902,084. Abrasive tools. CODMAN CO., F. L. & J. C. Nov. 11, 1958 [Dec. 23, 1957], No. 36271/58. Class 60.  A rotary abrasive tool of the type in which the radial face engages and operates on the work comprises a backing disc 10 having a central opening for mounting on a spindle, the radially outer portion of the disc being overlaid by a multiplicity of substantially trapezoidal slips 12 which are of grit-coated sheet material of such stiffness as to render them inherently selfsupporting and are serially overlapped in a closed circular series; the width of the portions  of the slips exposed is not less than half the minimum width of the slips to provide a multiply covering so that any axially extending line passing through the radially outer portion of the disc intersects a plurality of the slips, and all portions of the slips are exterior to the underlying face of the disc and have areas 14 adjacent the underlying edge secured flatwise to that face, the inner ends of the slips also being secured to the disc. The slips, which may be of emery cloth or sand paper and cut from a strip by alternate straight and angular cuts, are secured to the disc by adhesive covering the areas 14. A central disc 18 and an overlying disc 16 may also be adhered to the disc 10 which may be of pressboard of substantial thickness. The tool is rotated with the unsecured edges of the strips trailing and may be driven from a flexible shaft.
Patent GB-1439166-A (GB)
Title: Electrical apparatus assembly
IPC: H03J1/06
Filed: 1973-07-31
Abstract: 1439166 Touch operated switches INTERNATIONAL STANDARD ELECTRIC CORP 31 July 1973 [31 July 1972] 36286/73 Heading G1N [ Also in Divisions H 1 and H3] In an electrical apparatus assembly comprising a case 2 and 12 containing electrical switching or tuning equipment including an indicating faceplate 1, control buttons and/or finger-touchcontact surfaces 4a and 4d, and a printed circuit board 7a, the case consists of a plastics case cover 2 and a separate case bottom 12, the parts are demountably clipped together so that the indicator plate 1 is clipped on to the case cover 2, holders 4b for the control buttons and/or receptacles for the .finger-touch contact surfaces 4c are clipped into apertures 4a in the case cover 2 and the printed circuit board 7a is clipped at 7 on to edges of the case cover 2. Also the case bottom 12 consists of a shield plate which encloses the printed circuit board 7a to provide shielding and clasps the clipped-up assembly from below and is clamped resiliently to the case cover 2, such as by the resilience of the slit sides of the case bottom 12. A layer 3 of conductive laquer serves as a shield for potentiometers in the tuning unit shown. The case cover 2 may be of conducting plastics material. An Al shield plate 12 clips on to the plastics cover 2. The tuning unit uses electronic switching and when a respective frequency band is switched on an indicating light 10 illuminates a respective coloured transparent oval opening 1b  and window 1a so that the channel or frequency setting marked on the faceplate 1 can be read against a pointer 11 of the associated potentiometer. The cover 2 is positioned on the printed circuit board 7a by pins 8 which engage in holes 9 and the cover 2 is fastened to the printed circuit board 7a by latches or catches 7 which resiliently engage below the circuit board 7a. The touch contact electrodes 4c and 4d are mounted in a contact receptacle 4b supported in an opening 4a in the cover 2 and on the printed circuit board 7a respectively. The outer electrode 4c is connected with the printed circuit board 7a by a contact spring 5. The assembly can be used for tuning TV and radio sets and can be provided with push buttons for programming instead of the touch contacts.