baber/WOPTO huggingface dataset:
Patent GB-239870-A (GB)
Title: Improvements relating to closures for boxes
IPC: F16B2/24
Filed: 1925-09-11
Abstract: 239,870. Schulze & Co., M. A. E. Sept. 12, 1924, [Convention date]. Nails, barbed.-To prevent the removal without detection of the barbed nail a of a cramp fastening for a box or chest, one or more pieces of wire b or nails, staples or the like are driven through holes d in the nail a and are bent backward towards the head so that when the nail has been entered through the hole in the shank of the cramp c the members b engage the material of the box or the underside of the shank c'.
Patent GB-1367409-A (GB)
Title: Gas burner
IPC: F23D14/00
Filed: 1972-05-15
Abstract: 1367409 Gas burner BLACK SIVALLS & BRYSON Inc 15 May 1972 [3 June 1971] 22741/72 Heading F4T A gas burner comprises a hollow outer shell 12 with end walls 24 and 26, an inlet 30 for discharging combustion air into an air passage 28 formed by a liner 18 supported within the shell 12 and extending through the end wall 24 and being spaced from the end wall 26 to define another space 48, means 50 for igniting the fuel injected through an opening 46 in the end wall 26 and apertured gas diffusion means secured about the opening 46 and/or supported inside the free end 22 of the liner 18. The gas diffusion means may be a noise abatement device 54 which extends from the liner 18 by about a quarter of the distance between the end 22 of the liner 18 and the end wall 26. Alternatively, or in addition, the gas diffusion means may comprise a flame protection device 74 mounted on the end wall 26 and which diffuses the combustion air and prevents it from blowing out a pilot flame of the burner. The flame protection device extends a distance of 35 to 40% of the distance between the end 22 of the liner 18 and the end wall 26 and has a diameter approximately equal to half the diameter of the noise abatement device. The liner 18 comprises two frusto-conical sections 32 and 34 converging towards the end walls 26 and 24 respectively with the distance between the end 22 of the liner 18 and the end wall 26 being at least half the diameter of the end 22 of the liner 18. A pilot gas line 42 and a main gas line 44 are connected to a burner 40 and supported by the end wall 26.
Patent GB-996080-A (GB)
Title: 17-monoesters of 17ª,21-dihydroxy steroids and process for the preparation thereof
Inventor: ERCOLI ALBERTO
IPC: C07J21/00
Filed: 1962-06-13
Abstract: The invention comprises steroids having at the 17-position the following structure <FORM:0996080/C2/1> wherein R represents an aliphatic hydrocarbon radical of 5 to 9 carbon atoms, a cycloaliphatic hydrocarbon radical of 4 to 6 carbon atoms, an arylaliphatic hydrocarbon radical of 7 or 8 carbon atoms, phenyl, b -carboxyethyl or b -carboxymethoxyethyl, and the preparation of compounds having the above structure wherein R may also represent an aliphatic hydrocarbon radical of 1 to 4 carbon atoms by hydrolysing in an organic reaction medium and in the presence of an aqueous acid such as sulphuric, phosphoric, boric, perchloric, hydrochloric, acetic, formic, propionic, chloracetic, oxalic and malonic acid, at 0 DEG  to 100 DEG  C., a 17a ,21 - (11 - alkoxy) - 11 - substituted -methylenedioxy steroid having at the 17-position the following structure <FORM:0996080/C2/2> wherein R1 represents an alkyl radical of 1 to 3 carbon atoms and R has the above significance (including the aliphatic hydrocarbon radicals of 1 to 4 carbon atoms).  The preferred steroids of the first structure above have the general formula <FORM:0996080/C2/3> wherein R has the first definition above and X represents ketonic oxygen or a b -hydroxy group, Y represents hydrogen or fluorine, W represents hydrogen, fluorine or methyl, and R2 represents hydrogen, a - or b -methyl or a -hydroxy, hydroxy, and the corresponding 1,2-unsaturated compounds.  In the above process the steroid reactant is generally substituted at the 3-position by an oxygen containing group such as a keto or hydroxy group (in the case of the hydroxy group it is preferable to protect the group as an ether, alkanoyloxy or benzoyloxy group).  The steroid reactant may also contain substituents such as hydroxy, keto, halogen, ether and methyl groups at any of the positions 1, 2, 4, 6, 7, 9, 11 and 16 and may be saturated or contain one or more double bonds at any of the 1 : 2-, 3 : 4-, 4 : 5-, 5 : 6- and 9 : 11-positions. The free 21-hydroxy group in the product prepared by the above process may then be acylated.  21 - Halogeno - 17a  - acyloxy - steroids are prepared by replacing the 21-hydroxy group of 21 - hydroxy - 17a  - acyloxy - steroids prepared by the above process with a halogen by known methods.  17a  - Acyloxy - 21 - desoxy - steroids are prepared by treating 21-hydroxy-17a -acyloxy-steroids prepared by the above process with p-toluenesulphonic acid and reacting the resulting 21-tosylate with hydriodic acid.  Specifications 737,291 and 996,079 are referred to.
Patent GB-614802-A (GB)
Title: Improvements in or relating to vehicle lamps
IPC: F21V17/00
Filed: 1946-07-31
Abstract: 614,802. Vehicle &c., lamps. MILLER, M. July 31, 1946, No. 22764. [Class 75 (iv)] A vehicle or other lamp comprises an annular glass holder 1 hinged upon the front of the lamp body (not shown) by one or more hinge knuckles 4, pinned to one or more knuckles on the lamp body, and formed on one edge of a plate 6 which seats upon the internal peripheral surface of the holder 1 and which is retained in position by a mechanical engagement therewith. The plate 6 engages in channels formed around and internally of the front and rear edges of the holder 1, and has on its rear edge an extension 5, formed with the knuckle 4, and projections 7 engaging the rear channel. To prevent movement of the plate 6 relatively to the holder 1, the extension 5 is located within a shallow depression in the wall of the rear channel.
Patent GB-594573-A (GB)
Title: Improved method of slitting paper tubes or the like by means of a rotary blade
IPC: B31B23/00
Filed: 1945-09-04
Abstract: 594,573. Paper tubes. RIEGGER, P.C. Sept. 4, 1945, No. 22738. Convention date, Nov. 4, 1943. [Class 94 (ii)] Cutting mechanism for paper tubes, or the like, comprises a rotary cutter 1, the linear speed of the cutter being at least equal, to the linear speed of the tube and a stationary cutter 2 fixed to a former 3 for shaping the tube in which the slits in the tube walls are so disposed and shaped as to detach waste cutting of the paper or other material. The cuts may be of various shapes, formed in either or both walls of the tube and two or more cuts such as C, C<1> may be formed to enclose a piece of material to be removed. The tube may afterwards be cut up along lines A A<1> to form section F<7>. The cuts may be at an angle to the line of movement of the material.
Patent GB-1464366-A (GB)
Title: Screw and bolt anchros
IPC: F16B37/12
Filed: 1974-05-13
Abstract: 1464366 Making screw or bolt anchors JAMES M SIBTHORP Ltd 13 May 1974 [20 June 1973] 22791/73 Heading B5A [Also in Divisions B3 and F2] A method of making a screw or bolt anchor comprises forming a tube by helically winding wire or strip having a cross-section such that the outer faces 4 of the wound convolutions define an external screw thread, and cutting an internal screw thread into the tube bore. The bore may be machined prior to the internal threading which may be performed by screwing a selftapping screw or bolt into the tube which is to be anchored. The wire or strip is made of mild steel, brass, aluminium or aluminium alloy and may have various configurations, Figs. 3-6 (not shown). Alternatively, the wire or strip may be made of plastics, plastics-coated metal, or other material. The tube may be wound on a spring coiling machine on an undersized mandrel and is cut into suitable lengths before the internal thread is cut. In one embodiment, Fig. 7, wire 10 of circular cross-section is wound into a tube and a thread 11 is cut without any intermediate bore-machining step. A wound tube may be screwed into a drilled hole in material, e.g. wood, before machining and thread-cutting.
Patent GB-321649-A (GB)
Title: Improvements in or relating to sutures for wounds
IPC: A61B17/08
Filed: 1928-08-09
Abstract: 321,649. Worthey, A. E. S. Aug 9, 1928. Wound-closing appliances.- To close a wound 2 a number of narrow strips 1 of adhesive plaster are applied to the skin on either side of the wound, each strip having an eyelet. 4 or hook through which sterilized gut 3 is threaded and tightened up to draw the strips, and the edges of the wound, together. Reference has been directed by the Comptroller to Specification 9148/86.
Patent GB-376982-A (GB)
Title: Lens apparatus for lamps
IPC: F21V9/12
Filed: 1931-08-17
Abstract: 376,982. Vehicle &c.lamps. WILLIAMS, D., 3A, All Souls Place, Langham Street, London. Aug. 17, 1931, No. 23110. [Class 75 (ii).] Lantern fronts.- In a vehicle or like lamp a vertical prism 3 extends right across the outer or front surface of the front glass and a series of parallel triangular prisms 2 extend upwardly and outwardly on each side of the central prism to refract the light outwardly and downwardly. The prisms may be cut in or secured to the front glass. A sheet of glass is spaced slightly in front of the prisms and co-operates with a rim I provided with pipe connections 5, 6 to form a hollow chamber which may be more or less filled or emptied at will with a liquid adapted to neutralize or partly neutralize the refracting effects of the prisms. The liquid may be given a golden or orange colour for fog-penetration purposes.
Patent GB-1476113-A (GB)
Title: Hydrostatic radial piston machine
IPC: F01B13/06
Filed: 1975-05-27
Abstract: 1476113 Reciprocating pumps and motors INDUSTRIEWERKE KARL-MARX-STADT VEB 27 May 1975 [11 June 1974] 23142/75 Heading F1A In an hydraulic, radial piston pump or motor comprising a rotary cylinder block 2 having a plurality of banks of pistons 3 and mounted on a stationary pintle 1 fixed at one end, pairs of recesses 5 between the banks of pistons permit flexing of the cylinder block to conform with the flexing of the pintle. Adjacent pairs of recesses may be offset by 90 degrees, as shown. The recesses may have straight bottom surfaces, as shown, to form rectangular torque-transmitting portions, or may have curved bottom surfaces to form triangular torque-transmitting portions, Figs. 4 and 5 (not shown). The cylinder block may be fitted with a bearing bush or bushes for engaging the pintle. If the cylinder block has more than two rows of pistons, the torque-transmitting portions may vary in cross-section along the cylinder block in proportion with the degree of flexing of the pintle.
Patent GB-640903-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S7/00
Filed: 1946-08-02
Abstract: 640,903. Radio navigation. RADIO CORPORATION OF AMERICA. Aug. 2, 1946, No. 23156. Convention date, Aug. 30, 1945. [Class 40 (vii)] A radio-navigational system comprises a fixed ground radar station providing a P.P.I. display an image of which is transmitted by a television transmitter to craft in the vicinity of the radar station, means being provided for identifying in the reproduced display on each craft the indication representative of that craft. In a system for aircraft, each aircraft carries a responder re-transmitting pulses from the radar transmitter on a frequency different from that of reception. The radar receiver which comprises one receiver tuned to the radar-transmitter frequency and another tuned to the responder re-transmitting frequency may be arranged to receive on either frequency and the corresponding reflected or re-transmitted pulses are applied to a P.P.I. display upon which is superimposed a map of the district about the radar station. The composite display is televised and transmitted omni-directionally upon a third frequency ; alternatively directional transmission may be used, in which case the directive-aerial rotates with the radar aerial and the television receivers employ long-afterglow cathode-ray tubes. Fig. 3 illustrates one form of aircraft apparatus. The television transmission is received by receiver 41 on frequency f3 and the demodulated signals are applied to the grid of cathode-ray tube 48. Exploring pulses from the radar transmitter are received on a frequency f1 by the receiver portion 57 of transponder 42 and re-transmitted on a frequency f2 from the transmitter portion 59. The demodulated pulse output from 57 is applied to the integrator 62 which delivers a pulse 56 when the radar beam is sweeping past the aircraft. The pulse 56 is applied to the cathode-ray tube to increase momentarily the intensity of the image displayed thereon. By noting the position of the rotating radial trace of the P.P.I. display at the instant of increased intensity, the response due to the aircraft carrying the apparatus may be identified. The pulse 56 instead of being applied direct to the tube 48 may trigger a multivibrator to produce a further pulse of predetermined length which is used to increase the intensity of the display. This is of particular application when the aerial scan is rapid so that the pulse 56 does not occupy a whole frame period. In an alternative system means are provided on each aircraft for switching the responder and the television receiver on and off in synchronism. Indications corresponding to other craft will be not be switched on and off in synchronism with the television receiver and thus they will flicker while that due to the receiving aircraft will be switched on and off regularly. An optical filter, Fig. 1a, bearing a darkened sector rotating with the radial trace of the P.P.I. display may be placed in front of the cathode-ray tube at the ground station to reduce the initial high intensity of the radial trace.
Patent GB-532001-A (GB)
Title: Improvements in means for mounting and adjusting the knife edges of levers
IPC: G01G21/08
Filed: 1939-08-11
Abstract: 532,001. Weighing-apparatus; knife-edge bearings. ASHWORTH, ROSS & CO., Ltd., and MILLS, R. A. Aug. 11, 1939, No. 23171. [Class 143] [Also in Group XXXIV] Knife-edges of levers, particularly steelyards used in weighing-apparatus are mounted in a rockable member or saddle 7 pivoted on the lever 6 by a pin 8 and adjustable angularly for example by screws 9 in order to set the knifeedges 4, 5 relative to the face line f of the lever. The saddle 7 is of U-shaped form with lateral projctions 7a, 7b to which the knife-edges are attached by screwed shanks 4a and nuts 4b. Hardened steel plugs 10 abut the ends of the knife-edges.
Patent GB-238400-A (GB)
Title: Self-serving stores
IPC: F21V17/00
Filed: 1924-10-01
Abstract: 238,400. Trapp, E. W. Oct. 1, 1924. Self-service and like means for effecting and controlling sales.-A self-service store comprises a lobby 4 with entrance and exit turnstiles 8, 9 and a checker's stand 13 placed so as to give a clear view of shelved cabinets 14, 15 displaying goods for sale and arranged in zig-zag fashion to form alcoves around a shopping space 19, 20. Two cabinets 22, placed centrally of the shopping space and separated by a passage way, are formed with wing pieces 27 so that four alcoves are formed with each cabinet. A storage space 6 is provided behind the cabinets at one side and end of the store.
Patent GB-716111-A (GB)
Title: Improvements in or relating to gas heating equipment
Inventor: EADON-CLARKE CHRISTOPHER ERSKI
IPC: F23D14/60
Filed: 1950-09-22
Abstract: 716,111. Injectors. STANDARD TELEPHONES & CABLES, Ltd. Sept. 14, 1951 [Sept. 22, 1950], No. 23291/50. Class 71. [Also in Group XI] A device for mixing gas and air for gas burners BU comprises two spaced halves of a Venturi tube sealed in a chamber IJ, one half AJ serving as an inlet for pressure air and the other half VT as the outlet for air/gas mixture. The gas is drawn into the chamber through an inlet GI. The diameter of the orifice of the outlet half VT of the Veuturi is larger than the diameter of the orifice of the inlet half AJ.
Patent GB-849491-A (GB)
Title: Improvements in steering mechanism for vehicles
Inventor: ADAMS FREDERICK JOHN
IPC: B62D7/16
Filed: 1955-08-12
Abstract: 849,491. Vehicle power steering. HYDROSTEER Ltd. Oct. 31, 1956 [Aug. 12, 1955; July 20, 1956], Nos. 23305/55 and 22626/56. Class 79(5). [Also in Group XXV] In a power-assisted steering mechanism having a reciprocating ram and cylinder form ing an expansible component in the trans mission to the steering wheels (not shown and the cylinder being connected to another transmission component (not shown) by a bal joint, the ball head 6<SP>1</SP> is formed with a groove 19 in a plane containing the axis of the cylinder and the socket has balls 21 trapped in the groove whereby the other componen holds the cylinder from turning about its own axis. As shown in Fig. 2 the invention is applied to a power assisted steering mechanism having the control valve and the ram and cylinder disposed in line, and the balls 21 are constrained in a member 15 associated with the control valve. It is stated that the invention in obviating rolling of the cylinder relieves strain from liquid pressure lines taken to the cylinder. Specification 831,898 is referred to.
Patent GB-1269267-A (GB)
Title: Controlling the rolling of metal strip
IPC: B21B37/26
Filed: 1969-05-08
Abstract: 1,269,267. Rolling mills. NIPPON KOKAN K.K. 8 May, 1969 [9 May, 1968], No. 23515/69. Heading B3M. A method of controlling the operation of a continuous metal strip rolling mill, in which the gauge of a strip being rolled is changed from one value to another during rolling, involves keeping the interstand tension constant during the change in gauge. The values of screwdown and roll speed for the various stands, corresponding to a change of gauge, are predetermined by a computer 75, and suitable signals are fed to the stands to control their peripheral roll speeds. The values may be provided in the form of a programme. One or more additional sets of measurements of strip gauge, interstand tension, and rolling load may be used with the above system. X-ray gauges 8 and 9 may be provided downstream of each stand, the outputs of the gauges modifying the screwdown or roll speeds of the stands. Similarly, load cells and tension meters 10-13 may be provided.
Patent GB-248279-A (GB)
Title: Improvements in flotation apparatus
IPC: B03D1/16
Filed: 1925-09-21
Abstract: 248,279. Kraut, M. Sept. 21, 1925. Flotation processes and apparatus.-A flotation apparatus comprises a conical chamber 23 open to the atmosphere at the upper end, mounted vertically in a chamber 10, and cuntaining a concentric member 27 carried by a vertical shaft 26. Pulp is admitted through a pipe 20 to the bottom of the chamber 23 and oil is supplied through a pipe 44 to pipes 43 depending from the top of the inner member 27. Rotation of the member 27 causes the pulp to rise between it and the chamber 23 whereupon it is distributed over the surface of the pulp in the chamber 10 by means of deflecting vanes mounted in an annular ring 50. The member 27 may be perforated, and its outer surface may be formed with helical grooves. The froth overflows at the top of the walls 13 while the tailings may pass to a second similar apparatus by way of an adjustable gate 54 and also through a pipe 60. Coarse sands are withdrawn through outlets 63, 70, while a tailings discharge is maintained over an adjustable gate 67.
Patent GB-1311505-A (GB)
Title: Overhead visual shutter device
IPC: G03B21/132
Filed: 1970-05-15
Abstract: 1311505 Overhead projectors J S WRIGHT 15 May 1970 [19 May 1969] 23547/70 Heading G2A A shutter assembly for selectively masking portions of the projection stage of an overhead projector comprises a frame 24 defining a window 26 covered by a transparency support glass 70 beneath which sliding shutters 28 are carried in guides formed in frame 24, the shutters having handles 50 permitting their selective withdrawal to expose all or selected quarters of window 26. Register pins 80 align the transparencies with respect to the shutter assembly. The assembly may be used in three different sizes, on the projection stage, between the stage and the projection head, or in front of the projection head.
Patent GB-1503668-A (GB)
Title: Manufacture of pneumatic tyres
IPC: B29D30/06
Filed: 1974-05-28
Abstract: 1503668 Moulding tyres DUNLOP Ltd 14 May 1975 [28 May 1974] 23576/74 Heading B5A The tread portion of a pneumatic tyre is initially moulded from uncured rubber in an annular cavity between a cured rubber core 10 and a tread ring 15, the core being supported during such moulding by a pair of side plates 11, only one of which is shown. After moulding the tread the plates are replaced by mould halves 18, only one of which is shown, which define tyre sidewall moulding cavities 20 into which uncured rubber is forced. The tyre is cured and the core removed. The side plates are carried by press platens with cavities 13 and plungers 14 whereby the rubber is forced to the tread moulding chamber via an annular gate 24; the mould halves are supported by plates 21 with passages 22, 23 for the injection of the sidewalls.
Patent GB-1369295-A (GB)
Title: Citric acid production
IPC: C12R1/73
Filed: 1972-05-19
Abstract: 1369295 Citric acid PFIZER Ltd 17 May 1973 [19 May 1972] 23579/72 Heading C2C In a continuous process for the preparation of citric acid by aerobic fermentation of an aqueous medium containing hydrocarbon as the carbon source, hydrocarbons and nutrients are continuously fed to the fermentation medium and citric acid containing medium continuously withdrawn to maintain the medium at constant volume, at a pH from 2À2 to 4À0 and at 22-32 C. The citric acid is recovered from the withdrawn medium yeasts of genus Candida, of various species, e.g. lipolytica ATCC 20228, may be used and the alkanes may be straight-chain alkanes or 1-alkenes (9-19 C).
Patent GB-1117932-A (GB)
Title: Collapsible and/or contracting caravan and the extension for space inside and outside the caravan
IPC: B60P3/34
Filed: 1965-06-02
Abstract: 1,117,932. Convertible vehicles. R. H. DAVIES. 1 Sept., 1966 [2 June, 1965], No. 23612/65. Heading B7B. A caravan has an upper central part 4 which telescopes by hydraulic jack mechanism over a lower central part and similarly telescoping side parts 1, 2 which also slide inwardly to collapse the structure. Canvas awnings 6, 9a are extendable from their stowed-rolled positions to provide additional space.
Patent GB-406321-A (GB)
Title: Improvements in or relating to time-measuring instruments and the manufacture thereof
IPC: G04D7/12
Filed: 1932-08-23
Abstract: 406,321. Clocks and similar time measures. FERRIS, P. B., 18, Belsize Avenue, West Ealing, and LENOIR, R. M. J., Milespit Hill, Millhill, both in London. Aug. 23, 1932, Nos. 23621 and 31404. [Class 139.] Balances, testing.-A method and apparatus for testing a balance wheel 13 consist in causing the wheel to obstruct by its oscillation a beam of light 12 passing from a source 11 to a light sensitive cell 15, the rate of obstruction being counted by an electric counter 27 actuated by the cell. The balance may be so tested while it is assembled in the clock movement. The balance is mounted with its hairspring 47 by adjustable members 41, 42 and pivots on the glass top of a tube 36 with apparatus 14 which focuses the light and therefore the shadows of the balance arms on the cell 15. An adjustable shutter 16 consisting of two overlapping sectors provides a slit 56 for giving definition to the shadows. Each time the balance obscures the beam 12 the cell, through thermionic valve relay 19 sends on impulse to magnet 22 which advances the ratchet 25 of the counter 27. A master electric clock mechanism 28 includes a cam which rotates once per minute and has a high part over 90‹ so that a contact is closed only for 15 seconds. During the latter period this contact and its lines 29, 30 allow relay 19 to function, so that the number of times the beam is obstructed in 15 seconds is counted by counter 27 which then ceases to act for 45 seconds. The rate of obstruction thus obtained is compared with a standard rate and the balance is adjusted and re-tested until its rate is correct. Current to the master clock 28, magnet 22, and light source 11 may be broken by switches 133, 121 and 130 respectively.