baber/WOPTO huggingface dataset:
Patent GB-542357-A (GB)
Title: Improvements in or relating to internal combustion engines provided with charging pumps
IPC: F02B33/00
Filed: 1940-03-07
Abstract: 542,357. Two-stroke engines ; regulating pumps. KJELLBERG, C. F. G. March 7, 1940, No. 4308. [Classes 7 (ii) and 7 (vi)] In an engine having a reciprocating charging-pump for supplying a charge to the working cylinder during the compression period, the inlet of the charging-pump is connected with the outlet of a reciprocating pre-charging-pump arranged so that the compression stroke  of the pre-charging pump and the suction stroke of the charging-pump end substantially at the same time. The Figures show a two-stroke engine in which a charging-pump 7 controlled by a rotary sleeve valve 14 supplies two working cylinders 1 through passages 13, the inlet to the pump 7 being connected by a passage 23 to the outlet 21 of a pre-charging- pump 16. The pump 16 is driven directly from the engine shaft and is double-acting, while the pump 7 is driven at double engine speed by a chain 11. The supply from the pump 16 to the pump 7 is adjustable by means of a throttle valve 24, and a rotary byepass valve 29, which also is movable axially against a spring 28 to act as a pressure-relief valve. A further valve 25 is provided for cutting out the pump 16 and connecting the passage 23 directly to a carburetter or to the atmosphere. The throttle valve 24 and valve 29 may be so connected that the latter is gradually opened as the throttle is closed. In gas engines the inlet of the pump 16 is connected to a gas generator and may be provided with a device for mixing the gas with air.
Patent GB-1244174-A (GB)
Title: Board game
Inventor: HOLMES JOSEPH ARTHUR HENRY
IPC: A63F3/02
Filed: 1968-01-26
Abstract: 1,244,174. Board game. J. A. H. HOLMES. 3 Dec., 1968 [26 Jan., 1968 (2)], Nos. 4349/68 and 4350/68. Heading A6H. A board for a board game is marked with nine stations interconnected by grooves in which counters slide, and incorporates a random selection device. A board 20, Fig. 1, has numbered stations 10 interconnected by sets of grooves 23, 24 in which slide counters 25. Players seek to occupy a particular station with a counter by selecting the station number using random selection device 50. The device comprises, Fig. 6, a transparent housing 59 enclosing dice 60 which may be tumbled by the rocking of support lever 58. Alternatively a dice may be thrown. In a modification the central circular station is rotatable to allow counters to be moved between grooves 23 and 24. Results are scored on "thermometer" type indicators 40.
Patent GB-1473637-A (GB)
Title: Bodywork
IPC: B65D90/02
Filed: 1974-04-29
Abstract: 1473637 Bodywork panels L P COLLEN 29 April 1974 [29 Jan 1973] 4457/73 Heading B7B [Also in Division E1] A four-sided vehicle bodywork panel, e.g. a dropside panel of a vehicle such as a trailer, semi-trailer, rigid vehicle or freight container, has hollow extruded members extending along the four sides of the panel to form a peripheral frame, the members each being of closed crosssection, and an infilling wall attached at its periphery to the peripheral frame. In Fig. 4, square hollow members 30 having a pair of inwardly facing flanges to receive an infilling wall composed of corrugated sections 35, 36, 37 are extruded from aluminium. The infilling wall is secured to the flanges either by rivets 50 or by welding. In Fig. 6, a wall part 46 of corrugated cross-section forms an integral part of a hollow extruded frame member 41 comprising a tubular element comprising a box-section portion 40 and a portion 42<SP>1</SP> of rectangular cross-section. The drawings which accompanied the provisional Specification (not shown) disclose a tubular element of simple box section having an integral corrugated wall part.
Patent GB-373212-A (GB)
Title: Improvements in or relating to cotton printing by means of sulphur dyestuffs
Filed: 1931-02-12
Abstract: Sulphur dye preparations for cotton-printing are made by pasting the dye with glycerine or another similar water-soluble alcohol, e.g. glycol, diethyleneglycol, thiodiglycol or thiodiglycerol, in the presence of water with the addition of a hydrotropic agent, which may be added before or after pasting the dye.  The following hydrotropic agents are specified: urea, thiourea, alkali salts of ethylether sulphuric acid, glycerine oxyethylether, and sodium, potassium or ammonium salts of isovaleric, isobutyric, phenylacetic, benzoic, o-toluic, salicyclic, naphthoic, oxynaphthoic, benzene sulphonic, p-toluenesulphonic, naphthalenesulphonic, dialkylanilinesulphonic, benzylsulphanilic, dialkylaminonaphthalenesulphonic benzene- or naphthalene-sulphinic, cyclohexanecarboxylic, tetrahydronaphthalene-b -sulphonic or carboxylic, and aryloxyfatty acids, and of p-toluenesulphonyldiglycine.  In examples, (1) the dyestuff obtained by sulphur fusion of carbozole-indophenol is pasted with glycerine and sodium tetrahydronaphthalene-b -sulphonate, (2) the product of example (1) is made into a printing paste with thiodiglycol, caustic soda, sodium carbonate, sodium benzylsulphanilate, sodium hydrosulphite, sodium formaldehyde-sulphoxylate, British gum and starch, printed on cotton, steamed, and developed in a potassium chromate-acetic acid bath, (3) the product of example (1) is made into a printing paste with potassium carbonate, sodium formaldehyde-sulphoxylate, gum, tragacanth and starch, printed on cotton and developed as in example (2), and (4) Indocarbon CL is pasted with glycerine and sodium tetrahydronaphthalene-b -sulphonate; the product may be made into a printing paste by addition of thiodiglycol, caustic soda, sodium carbonate, sodium benzylsulphanilate, glucose, sodium formaldehydesulphoxylate, gum and starch.  Specification 276,100, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-1099092-A (GB)
Title: Stable olefin catalyst systems
Inventor: INGBERMAN ARTHUR KING
IPC: C08F4/68
Filed: 1965-02-02
Abstract: Olefinically unsaturated hydrocarbons of formula R0-CH=CH2 in which R0 is a saturated aliphatic, alicyclic or aromatic radical are polymerized in an inert organic diluent in the presence of a catalyst comprising spheroidal particles of 200-300 <\>rA average diameter made by mixing (1) transition metal halides of formula MOaXb in which M is a Group IVa, Va or VIa metal having a valency z greater than 3; O is oxygen; X is halogen; (b) is an integer having a value of from 2 to z and <FORM:1099092/C3/1> and (2) an organo-aluminium compound of formula AlRmY3- m in which R is a hydrocarbon group free of aliphatic unsaturation, m is a number greater than zero and not more than 3, and Y is a halogen, sufficient to reduce the valency of a portion of the transition metal M to less than 3, under conditions which continuously subject the reactants to high speed agitation which produces an internal fluid shear sufficient to generate at least 10 calories per minute per litre of agitated fluid.  The preparation of highly crystalline polyethylene, polypropylene and polystyrene, and copolymers of ethylene and propylene are described.ALSO:A polymerisation catalyst which comprises spheroidal particles of average diameter 200-300  is made by reacting (1) a transition metal halide of formula MOaXb where M is a group IVa, Va or V1a metal having a valence z greater than 3; O is oxygen, X is halogen; b is an integer from 2 to z and a is equal to z-b/2 with (2) AlRm Y3-m in which R is a saturated hydrocarbon, m is 1, 2 or 3 and Y is halogen in conditions such that speed of stirring of reactants is sufficient to generate at least 10 cals. per minute per litre of fluid.  TiCl4, VOCl3 and CrO2Cl2 are specified as reactant (1) and triisobutyl aluminium, triethyl aluminium, tri-n-propyl aluminium and diethyl aluminium chloride are examples of reactant (2).
Patent GB-687697-A (GB)
Title: Improvements in and relating to friction pivots for fanlights, window sashes and thelike casements
IPC: E05D7/08
Filed: 1951-02-26
Abstract: 687,697. Hinges. HEYNE, P. L. Feb. 26, 1951 [March 16, 1950; Jan. 21, 1951], No. 4650/51. Class 65 (ii) A sash 1 is mounted in a frame 2 by two pivotal connections each of which comprises two coaxial circular or partly circular discs 4 and 7 of equal diameter disposed in face to face engagement with each other and secured to the sash and frame respectively and clamping means arranged on one of the latter to surround the discs and engage them frictionally, the clamping means comprising two members each having an arcuate clamping surface, and means for adjusting the spacing between the clamping surfaces. As shown, the disc member 7 is flat sided, and the clamping members 10, which are secured to the frame by screws 12, are adapted to be drawn together by screws 11 extending between adjacent lug portions 10a of the clamping members. In a modification the discs are dish shaped and their rims are disposed towards each other, while the lugs 10a are staggered with respect to the pivotal axis.
Patent GB-723905-A (GB)
Title: Improvements in photo-electric detecting apparatus
Inventor: CLARKE ALFRED GORDON
IPC: G01J1/16
Filed: 1953-01-28
Abstract: 723,905. Photo-electric smoke detectors. TRIST & CO., Ltd., R. Jan. 28, 1953 [Feb. 21, 1952], No. 4651/52. Class 40 (3). In a balanced photo-electric cell arrangement which may be used for smoke detection and in which an electrical signal indicative of the condition to be detected operates a warning device, spurious signals produced by changes in the values of components, dirt on lenses, &c., are eliminated by a device responsive to signals below the minimum level to which the warning device is required to respond and serving to adjust the balance of the system so as to cancel out the spurious signals. In the smoke detecting system shown in Fig. 1 light from a source 3 passes direct to a reference cell 1 and across a space to be guarded to a cell 2. The two cells form arms of a combined bridge and amplifier circuit 6 which energizes a polarized relay 7 according to the direction of the unbalance. Smoke in the beam closes contacts 8, 10 to energize a warning relay 28. Periodically constantly rotating cams 22, 25, 13, 30 disconnect this warning relay, increase the sensitivity of relay 7 by removing a shunt 11 and close contacts in series with relays 14, 23. Any unbalance below the normal level to which relay 28 will respond now closes one pair of contacts of relay 7, energizing one of relays 14, 23 to drive a permanent magnet field motor 17. The motor through reduction gearing inserts an optical wedge 33 into the radiation path, and rebalances the system. Continued rotation of the cams disconnects relays 14, 23 and reduces the sensitivity of relay 7 and re-connects warning relay 28. In a modification (Fig. 3, not shown) instead of positioning an optical wedge, motor 17 may adjust the angular position of a drum, part of the surface of which is silvered. This silver portion reflects light on to a balancing cell situated to one side of the beam. In the arrangement of Fig. 4 (not shown), the system is continuously rebalanced. The switch cams are omitted and a less sensitive relay is provided in series with polarized relay 7 to operate a warning device. The polarized relay rebalances the systems continuously as in the arrangement of Fig. 1, previously described, but the balancing motor is so geared that the rate of rebalancing is too slow to cancel out the genuine signal due to smoke &c.
Patent GB-711043-A (GB)
Title: Improvements in or relating to testing apparatus for synchros
Inventor: BELL JOHN
IPC: G01R31/34
Filed: 1951-02-26
Abstract: 711,043. Protractors. MUIRHEAD & CO., Ltd. Feb. 6, 1952 [Feb. 26, 1951], No. 4656/51. Class 97(3) [Also in Group XXXV] A device for testing synchros (see Group XXXV) comprises a part 4 and a part 1 which is held on the part 4 by springs 4a and abuts against a projection 5 on the part 4 which projection acts as a fulcrum. The outer end of the part 1 has a V- notch formed, for instance, by balls 2 and adapted to engage any one of a number of pegs 3a angularly spaced around a base or dial 3. A micrometer screw 6 having a frictionally mounted scale abuts against the part 1. The rotor of the synchro to be tested is set at zero and is attached at 7 to the part 4 and with the V-notch attached to the peg 3a corresponding to the position the micrometer screw is adjusted until the degrees output of the synchro matches that of a test instrument, the error in the synchro being indicated by the reading on the micrometer scale. This procedure is repeated for other angles. A further form is described in which the centre of the selected peg 3a, the fulcrum 5 and the end of the screw 6 are in line, in which the fulcrum 5 is radially adjustable and in which a registration is provided for setting up the approximate zero position of the part 4 in the initial set up of the device.
Patent GB-369719-A (GB)
Title: Improvements in or relating to machinery or apparatus for use in the straining or stretching of skins, hides, pelts, and the like
IPC: C14B1/26
Filed: 1931-02-14
Abstract: 369,719. Clips ; chain fastenings. SYKES, Ltd., W., Westfield Road, SYKES, W. 0., Northlands, Wakefield Road, and BRADLEY, A., Ivy Cottage, New Row, all in Horbury, Yorkshire. Feb. 14, 1931, No. 4660. [Class 44.] Devices for use in straining hides each comprise a pair of jaws 47, 48, between which the hide is gripped, connected by toggle links 53, 54 to a length of chain 57. The chain is engaged by the ends of a pair of screws 42 projecting inwardly from the members 41 of a jaw which is engaged by a screw'36 the outer end of which has an enlarged head abutting against the upstanding flange of a slide 30 in which the bolt 45 is secured. The screw 36 is rotatable by a handle 39.
Patent GB-415120-A (GB)
Title: Pliers, clippers or pinchers
IPC: B25B7/12
Filed: 1933-02-16
Abstract: 415,120. Pliers. MUTER, A. J., 74, Crescent Road, Wood Green, TYDEMAN, C., 3, Chichester Rents, Chancery Lane, and WILLIAMSON, G. A., 12, Holmesdale Avenue, East Sheen, all in London. Feb. 16, 1933, Nos. 4727, 21391, 23563, and 24830. [Class 61 (ii).] Sliding-jaw pliers have one jaw 2 provided with ribs 7 engaging grooves in the side plates 5 of the body and with a rack member 16 engaging teeth 14 on a pivoted member 13 provided with other teeth 15 engaging teeth 17 on the pivoted lever handle 4. In a modification, Fig. 3, the rack member 20 is engaged directly by teeth 21 on the pivoted lever handle 4. In an.. other modification, Fig. 5, the jaws 24, 25 are actuated simultaneously by the lever handles 22, 23 which are both pivoted on a pin 27, toothed segments 28, 29 on the levers engaging racks 30 on the jaws ; equal actuation of the jaws is ensured by means of links 36, 37 carrying a pin 38 engaging a slot 39. In a further modification, Fig. 8, with both jaws movable, the levers 49, 50 have separate pivots 51, 52 and equal actuation is provided for by a pin 55 engaging arcuate slots 53, 54 in the levers and longitudinal slots 56 in the side plates of the body.
Patent GB-541713-A (GB)
Title: Improvements in means for picking up and carrying incendiary bombs and the like
IPC: B25J1/04
Filed: 1940-06-25
Abstract: 541,713. Picking-up appliances. PEACE, S. J., and WARING, A. June 25, 1940, No. 4829/41. Divided out of 539,650, [Group XXI]. [Class 61 (ii)] A device for picking up and carrying incendiary bombs comprises a long rod 1 with a handle 3 at one end and at the other end a fork forming two curved jaws 2 and a spike 4 for breaking windows &c., and also to serve as a jaw. Co-operating with these jaws is a curved jaw 5 pivoted to the rod 1 and to the upper end of a rod 7 operable by a hand-lever 8 located towards the handle end of the rod 1.
Patent GB-470574-A (GB)
Title: Improvements in or relating to pipe fittings
IPC: F16L58/08
Filed: 1936-02-17
Abstract: A pipe fitting or junction-piece having screw-threaded ends has a coating of zinc produced by hot-galvanizing, the whole surface of the fitting being covered.  The coated fittings are treated, preferably in an atmosphere of an inert gas, in centrifugal apparatus the drum of which is heated to the melting point of zinc.
Patent GB-1006845-A (GB)
Title: Production of silica sols
Inventor: BARRETT JACK WHEELER
IPC: C01B33/143
Filed: 1963-02-06
Abstract: In a process for the production of a silica sol, a granular cation exchange resin in the hydrogen form and an aqueous solution containing an alkali metal or ammonium silicate are fed separately into a contact zone through which the two feed materials travel counter-currently to one another, a silicic acid solution is formed by transfer of alkali metal or ammonium ions from the solution to the cation exchange resin, and the silicic acid solution and cation exchange resin are each separately withdrawn from the contact zone. Preferably the aqueous silicate solution is fed into a lower section of a column and passes upwards while a granular resin of suitable density is fed into an upper section and passes downwards.  It is preferred to feed both at a constant rate, but semi-continuous or intermittent feeding of either may be employed. The silicate, e.g. sodium silicate may have a SiO2/M2O ratio, wherein M is alkali metal or ammonium, of 1 : 1 to 8 : 1, or higher when the solution fed already contains a proportion of silicic acid or silica sol.  The concentration of the solution, expressed in terms of SiO2 may be 2-40% by weight.  The solution withdrawn may be substantially free of alkali metal or ammonium ions or may have a SiO2/M2O ratio of 50 : 1 to 1000 : 1.  The SiO2 concentration may be 40% or more.  The solution is converted to a sol by known methods.  The resin is preferably of the strongly acidic type and in spherical granules. Regeneration may be effected by treatment with aqueous mineral acid and is preferably carried out continuously in conjunction with continuous production of silicic acid, the regenerated resin being recycled to the contact zone.
Patent GB-1085701-A (GB)
Title: Mineral mining machine and a jib therefor
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C27/02
Filed: 1964-02-05
Abstract: 1,085,701. Mineral-mining machines. AUSTIN HOY & CO. Ltd. Feb. 2, 1965 [Feb. 5, 1964], No. 4899/64. Heading E1F. In a mineral-mining machine having projecting laterally from the motor containing body of the machine a pre-cutting, endless cutter chain - carrying jib and a cutter drum, the jib, which proceeds the drum during a cutting run of the machine has an outer part pivotally mounted on an inner part so that it may be swung out of alignment therewith in order that the jib may not project beyond the drum so facilitating a return non-cutting run of the machine along the face.
Patent GB-121413-A (GB)
Title: Improvements relating to Carbon Copy Post-card Books.
Inventor: DUCKWORTH JOSHUA
IPC: B41L1/00
Filed: 1918-03-20
Abstract: 121,413. Duckworth, J. March 20, 1918. Books with tear-out portions. -A postcard copying book is made up with one postcard to each page, and instead of perforations, comparatively long slits are made near the binding edge leaving two or three small points of attachments d. The address of the sender may be printed on each card just below the dividing line, and the address to which the card is sent may be noted on the tissue paper copy, on which a red line is printed to facilitate adjustment of the carbon paper, so that the message only is repeated on the card.
Patent GB-594557-A (GB)
Title: A method for improving the translucency of cinematographic film
IPC: G03D15/00
Filed: 1945-02-27
Abstract: 594,557. Coating webs ; coated films. KLAK-FILM AKT.-GES. Feb. 27, 1945, No. 4940. Convention date, Nov. 2, 1944. [Class 140] [Also in Group XX] Films are rendered more translucent during passage through the projector by applying thereto a fluid comprising a halogenised hydrocarbon, e.g. carbon tetrachloride, in which is dissolved a wax, e.g. beeswax or carnauba wax, to which may be added a perfume, e.g. eucalyptol ; eucalyptus oil to mask the odour of the hydrocarbon. The applicator may be mounted near the film gate and may comprise two cushions continuously soaked with the fluid and pressed against opposite sides of the film. The fluid may be contained in. a vessel 3, Fig. 1, from which it flows through a valve controlled tube to a pipe 5 adjustably mounted at 4 on a standard 2 on the base 1 of the projection apparatus, and which delivers the fluid into a casing 8, adjustably mounted on the ball-shaped head 7 of pipe 5. Mounted in the casing are two cushions 9, 10 as of porous rubber between which passes the film 12 guided by rollers 18<1> pivoted at 18 on the casing 8. Cushion 9 is fixed, but cushion 10 rests on blade springs 15 in a holder 14, carried by a spring-biassed hinge 13 which urges the cushion 10 into contact with the film 12 to press it against the cushion 9. A handle on the holder 14 permits it to be swung down, when entraining the film, into an inoperative position in which it is held by a releasable spring latch 16. Casing 8 may be placed so as to apply liquid to the film between the delivery spool 26 and the film gate D. The escaping vapours are removed by the nozzle 80 of a suction ventilator 82 leading to the atmosphere before the film is wound on the take-up spool 27. A modification of the apparatus is described in which the casing 8 is fixed and the film is guided therethrough on rollers therein, one of which is adjustable for tensioning the film.
Patent GB-966955-A (GB)
Title: Centrifugal self-cleaning snagger for strand take-up mechanism
IPC: B65H67/056
Filed: 1963-02-07
Abstract: 966,955. Continuous winding of yarns. NORTHERN ELECTRIC CO. Ltd. Feb. 7, 1963 [Oct. 29, 1962], No. 4978/63. Heading D1J. In the continuous and successive winding of thread or the like on to coaxially mounted reels 10, 11 the opposed flange of the reels are each provided with a snagger plate 14 having snagging members 29, as shown in Fig. 2, pivotally mounted thereon in such manner that the outer tips 34 of the members 29 are movable axially of the plate or reel at a predetermined minimum speed of rotation to their operative snagging position and away therefrom when the speed falls below this value. Improved self-cleaning characteristics are claimed for this arrangement. The snagger plate 14 comprises a plate 17 having L-shaped members 29 pivotally mounted thereon by means of pins 33. When stationary the members 29 are urged to the position shown dotted by spring-loaded plungers 38 whereas in operation above a certain predetermined minimum rotational speed the outer tips 34 of the members 29 are held under centrifugal force in contact with a rim 36 of the plate 17. A peripheral flange 41 is provided on the plate 17 to prevent thread entering the space between the plate and the end flange 28 of the reel. In the arrangement shown the reel 10 is mounted for easy replacement on an arbor 25 and pintle 24, drive to the reel being transmitted from the snagger plate by ring members 26 and 27.
Patent GB-163475-A (GB)
Title: Improvements in or relating to golf practice nets
IPC: A63B63/00
Filed: 1920-02-13
Abstract: .163,475. Vardon, H. Feb. 18, 1920. Golf-practising appliances.-A golf-practising device comprises two nets 1, 4 of such a character that a golf ball driven against the device carries a portion of the front net 4 through the rear net to form a pocket as shown in Fig. 3.
Patent GB-538895-A (GB)
Title: Improvements in or relating to type setting or stamping devices
IPC: B41B3/00
Filed: 1940-03-19
Abstract: 538,895. Printing-surfaces; composing-sticks. COOPER, E. E., and COOPER, A. F. March 19, 1940, No. 5085. [Classes 100 (ii) and 100 (iii)] A stamp or typecomposing device comprises a thin strip 1 of three-ply wood, metal or other material on which the type blocks and spaces may be assembled by movement in a direction normal to the face of the block and frictionally held by grooves cut across the lower faces of the blocks. The strip may be flexible and the sides of the blocks may be convex or tapered as shown to allow the line of type to assume an arcuate form.