baber/WOPTO huggingface dataset:
Patent GB-307220-A (GB)
Title: Improvements relating to side fire bars
IPC: F23H17/12
Filed: 1928-03-17
Abstract: 307,220. Whittaker, W. March 17, 1928. Firebars for use at the sides of a furnace grate are provided with projections B on each side inclined at 45‹ to the longitudinal rib A. The spaces b<2> between the projections at the centre of the bar are wider than the spaces b<1> at the ends. The projections on one side of the firebar are staggered in relation to and are longer than those on the other, the longer projections being placed against the sides of the fire-box.
Patent GB-482017-A (GB)
Title: Improvements in store front construction
IPC: E06B1/38
Filed: 1937-03-19
Abstract: 482,017. Glazing shop fronts. PITTSBURGH PLATE GLASS CO. March 19, 1937, No. 8158. Convention date, June 26, 1936. [Class 20 (iii)] The bevelled meeting ends 17 of the cover strips of shop window frame members 16, of the kind described in Specification 448,743, are attached to hinged bracket members 21 secured by screws 26 to the window frame 10, whereby varying angles between the glass panes 7 may be accommodated. The attachment of the cover strips is effected by screws which pass through holes 29 in the cover strips and engage with threaded holes 28 in the arms of the bracket members. In order to accommodate expansion of the cover strips, the free ends 33 thereof slidably engage with cap members 34 secured to brackets 35 attached to the window frame. The holes 29 at the meeting ends of the strips are marked off from a hinged member shaped to conform with the outer surfaces of the strips and in each arm of which is a hole in alignment with the corresponding hole in the securing bracket 21.
Patent GB-1244403-A (GB)
Title: Mine conveyor equipment
Inventor: JARVIS EDWARD ERNEST
IPC: E21F13/10
Filed: 1969-02-14
Abstract: 1,244,403. Mine conveyers. COAL INDUSTRY (PATENTS) Ltd. 13 Feb., 1970 [14 Feb., 1969 (2)], Nos. 8214/69 and 8215/69. Heading B8A. A mining conveyer section 2 is connected to an anchor station beam 3 by a bracket 4 comprising a pair of lugs 40 extending from a plate 31 which is secured by bolts 18 to a plate 16 of the conveyer section 2. The top of the plate 16 is received in a channel 38 formed in the plate 31 and a flange 30 of the plate 31 is received in a channel at the bottom of the plate 16. The anchor beam 3, by means of a bore 44, carries a pin 42 which passes through elongated apertures 28 in the lugs 40. The bore 44 is so dimensioned as to ensure that when the front end of the beam 3 abuts the face 36 of the plate 31, the pin 42 is free within the bore 44 and no thrust can be transmitted by the pin. The front end of the beam 3 has a thrust plate 52. The apertures 28 in the lugs permit limited free displacement of the section 2 relative to the beam 3 according to the mine floor conditions. When the anchor station has to be advanced with the conveyer acting as anchorage the pull is transmitted by the pin in shear and by the lugs 40. The thrust plate 52 may be tapered so that the conveyer is directed upwardly or downwardly respectively when it is being pushed by the beam 3.
Patent GB-1272761-A (GB)
Title: Treatment of asbestos
Inventor: HERON GORDON FREDERICK
IPC: C03C25/26
Filed: 1968-02-20
Abstract: 1,272,761. Treating asbestos. TURNER BROS. ASBESTOS CO. Ltd. 13 May, 1969 [20 Feb., 1968], No. 8269/68. Heading DIP. [Also in Division C1] Asbestos fibre, yarn, cloth, webbing or tape is treated with a solution containing at least one monomeric polyhydric alcohol or a polymeric polyhydric alcohol formed by condensation of a polyhydric alcohol and a boron compound, the excess solution is expressed from the asbestos and the asbestos is then dried, in order to reduce the dust generated during the handling of the asbestos. In the examples the above solution is a solution of glycerol (10 parts by weight) and borax (5 parts by weight) in water (85 parts by weight) and asbestos cloth is treated.
Patent GB-426231-A (GB)
Title: Improvements in casting machine for stereotype plates
IPC: B41D3/08
Filed: 1934-03-16
Abstract: 426,231. Stereotype. FOSTER, F. A., and ARMSTRONG, C. H., 2613, South 61st Street, Cicero, Illinois, U.S.A. March 16, 1934, No. 8373. [Class 100 (ii)] A stereotype casting-apparatus has a pair of semi-cylindrical members 24 forming the casting-box, the outer end of which is closed at the commencement of the casting-operation by a plunger 50 adapted to be moved into the box to form the core and to return to the melting-pot 1 the excess metal supplied to the box. The members 24 are pivoted on a rod 27 mounted in a carriage 15 and can be held in closed position by a lock 28. The meeting edges of the members near the pivot are recessed to receive aT-shaped matrixclamping and margin bar 34. Grooves formed in the inner walls of the members accommodate rings 37, 40. The ring 37 is adjustably mounted on the plunger guide 38 which carries a bevelled end ring 39. The other ring 40 is pivoted to the bar 34 and is formed with a bevelled inner face 56, a bevelled outer end 43 to fit a corresponding part of the discharge nozzle 3 of the melting-pot, and a flange 45 adapted to be locked to a corresponding flange 46 on the nozzle ; the flange 46 carries an annular member 47, Fig. 9, having internal projections 49 adapted to pass through apertures 48 formed in the flange 45, the member 47 being rotatable and formed with cam surfaces on the rear of the projections 49 to lock the parts together. The plunger is reciprocatable by means of a screw 51 actuated by a nut 53 driven from a motor. The plunger is formed with passages 59 for cooling liquid. The discharge aperture from the melting-pot is normally closed by a valve 5 under the control of a hand lever 9 and a counterweight. The carriage 15 provided with rails 16 formed with rack teeth 20 engaged by pinions 21 on a hand-operated shaft 22 to enable the box to be moved to and from casting-position.
Patent GB-1522085-A (GB)
Title: Methods of and circuit arrangements for regulating the speed of a dc motor
IPC: H02P7/291
Filed: 1976-03-02
Abstract: 1522085 Automatic control of speed ELECTROACUSTIC GmbH 2 March 1976 [3 March 1975] 08383/76 Heading G3R The speed of a D.C. motor is regulated by the comparison of a frequency dependent on motor speed and a reference frequency, the result being integrated to control a switch in the motor supply circuit. The integrator also integrates a fixed D.C. voltage. As shown, control transistor 17 in series with D.C. motor 10 is turned on according to the frequency difference between pulses from reference oscillator 5 and from motor driven disc 11 which are at a frequency proportional to motor speed. For every reference pulse, the output of comparator 1 is blocked whilst transistor 17 is turned on by integrator 16 which integrates the fixed voltage on its non-inverting input. The next pulse from disc 11 raises the output of comparator 1, to turn on transistor 14, thus earthing the integrator output and turning transistor 17 off. The fixed D.C. voltage on the non-inverting integrator input allows transistor 17 to be turned on for starting the motor, even though speed feedback signals are absent.
Patent GB-812384-A (GB)
Title: Improvements in or relating to radar reflectors
Inventor: BRUCKER MILTON
IPC: H01Q15/14
Filed: 1956-03-19
Abstract: 812,384. Moulding radar reflectors. ZENITH PLASTICS CO. March, 19, 1956, No. 8495/56. Class 87(2). [Also in Groups VIII and XL(c)] A radio reflector comprises a generally dish shaped structure including a metal layer intimately associated with a rigid cellular backing. In one method of constructing the reflector a mould 10, having a base 11 and an annular flange 14, is coated with an unsaturated polyester resin and a layer of fibreglass cloth impregnated with the resin laid over the convex surface and down to the flange. This layer which provides a protective coating for the finished metal reflector when in use, may be ten thousandths of an inch thick and is then cured. Next the outer surface is sandblasted and a layer of metal (e.g. aluminium) 17 sprayed over it. After this the metallic layer is covered with a further layer of resin impregnated fibreglass 18 and a honeycomb cellular core 19 made of woven fibreglass impregnated with resin, added. To complete the assembly further layers of resin impregnated fibreglass 20 are applied. A porous tube 23, for example a spiral coil spring, is then laid round the flange in the position shown and a flexible bag 21 of polyvinyl acetate placed over the structure and sealed round the edges of the flange 25 as by zinc chromate. Suction is applied to the tube 23 sufficient to cause the structure to be subjected to a pressure of nine pounds. per square inch and the outer surface of the bag brushed, rubbed or rolled to remove air pockets. Whilst the internal pressure is still reduced curing is effected either in an oven or by ultra-violet light. After the curing the reflector is separated from the mould and the bag 12 ; its edges are trimmed and then capped with two layers of resin impregnated fibreglass which are finally cured.
Patent GB-556842-A (GB)
Title: Improved means for the intensive cultivation of plants and the like
IPC: A01G13/00
Filed: 1942-06-22
Abstract: 556,842. Gardening appliances. TURNER, H. M. June 22, 1942, No. 8513. [Class 6 (ii)] A covering to be applied to the surface of the ground is formed with holes E having lines E of perforations radiating therefrom The material is dull-black in colour for absorbing the heat of the sun's rays, anc impregnated with an insect repelling substance.
Patent GB-724211-A (GB)
Title: Improvements in sparking or ignition plugs
Filed: 1952-04-03
Abstract: A resistive or semi-conducting element which bridges the spark gap of a low-tension sparking plug (see Group XXVII) comprises silicon carbide, cobalt oxide, aluminium oxide and urea formaldehyde in the proportions of 8.5, 1, 2 and 0.5 parts by weight, respectively.
Patent GB-1353698-A (GB)
Title: Injection inflating apparatus
IPC: F04F5/46
Filed: 1972-02-24
Abstract: 1353698 Pit pumps ROCKET RESEARCH CORP 24 Feb 1972 [16 March 1971] 8583/72 Heading F1E An inflation aspirator comprises an axially moveable aspiration tube 18 which in the outer position fully opens inlets 62 for aspirated air and in the inner position closes these inlets. A base member 66 has a high pressure inlet 76 leading to aspirating nozzles 74 and also to a cylinder 22 the piston of which is loaded by a spring 84 and connected to the aspiration tube by a rod 90 and struts 94 so that high pressure tends to move the tube to the outer position against spring action. The base member 66 is connected to an intermediate section 36 having the inlets 62, which in turn is connected to a forward section 34 to which a device 16 to be inflated is secured and into which the tube projects. A diaphragm 24 is secured to the tube and to the section 36 and is exposed to the pressure in the device 16 so that as the pressure therein rises the tube 18 is forced rearwardly towards the inner position until the end 32 of the tube seats on a seal 78 whereby the device 16 is closed.
Patent GB-937825-A (GB)
Title: Improvements in electric incandescent lamps
Inventor: COATON JAMES RICHARD
IPC: H01K7/06
Filed: 1961-03-09
Abstract: 937,825. Incandescent electric lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 26, 1962 [March 9, 1961], No. 8676/61. Class 39 (2). The envelope of an incandescent electric lamp is provided on the external surface with a cover formed in one or more parts of a transparent thermo - setting material adhesively secured to, or directly moulded on, the envelope, the outer surface of the cover having at least one continuous projection of prismatic crosssection with the base contiguous to the wall of the envelope. The projection may be a helical convolution or a succession of annular projections parallel to one another. In the former case it may be in the form of a Whitworth thread or a rolled thread. In the form shown, the envelope is generally pear-shaped to simulate a candle flame and the cover which is formed with annular projections 3 is in two moulded or engraved parts slipped on to the envelope and joined at 6. The cover may be of a polyacrylic resin and may be dyed.
Patent GB-942758-A (GB)
Title: Combined clock and radio receiver
IPC: G04C10/00
Filed: 1960-03-11
Abstract: 942,758. Clocks. RADIO CORPORATION OF AMERICA. March 11,1960 [May 21,1959], No. 8686/60. Drawings to Specification. Heading G3T. In a combined clock and radio receiver the radio receiver battery is connected to provide a charging current for the clock battery. The radio may be switched on or off by the clock.
Patent GB-359862-A (GB)
Title: Process for the preparation of stable supersaturated solutions of calcium gluconate
IPC: A61K33/06
Filed: 1931-03-21
Abstract: Supersaturated solutions of calcium gluconate are made by adding a relatively small proportion of calcium mannonate to a hot concentrated solution of calcium gluconate.  Therapeutically useful substances may be added as described in Specification 332,840, [Class 81 (i), Disinfecting &c.].  In examples, (1) 200 parts of calcium mannonate are added to a hot solution of 800 parts of calcium gluconate in 10000 parts of water, and the filtered solution is poured into suitable containers which are closed hermetically and may be heated at intervals to 90 DEG  C. to destroy any centres of crystallization and afterwards cooled; (2) 2 parts of calcium gluconate are dissolved in 10 parts of hot water and 0,3 parts of calcium mannonate are added, the filtered solution being poured in to suitable containers such as ampull , which after being closed, are heated several times to 90-100 DEG  C.ALSO:Supersaturated solutions of calcium gluconate are made by adding a relatively small proportion of calcium mannonate to a hot concentrated solution of calcium gluconate.  Therapeutically useful substances may be added, such as those mentioned in Specification 332,840, [Class 81 (i), Disinfecting &c.].  In examples; (1) 200 parts of calcium mannonate are added to a hot solution of 800 parts of calcium gluconate in 1000 parts of water, and the filtered solution is poured into suitable containers, which are closed hermetically and may be heated at intervals to 90 DEG  C. to destroy any centres of crystallization, and afterwards cooled; (2) 2 parts of calcium gluconate are dissolved in 10 parts of hot water and 0,3 parts of calcium mannonate are added, the filtered solution being poured into suitable containers such as ampullae, which after being closed, are heated several times to 90-100 DEG  C.
Patent GB-513117-A (GB)
Title: Improvements in or relating to the manufacture of polyvinyl acetal resins
IPC: C08F8/28
Filed: 1938-03-22
Abstract: 513,117. Polyvinyl acetal resins. KODAK, Ltd. (Eastman Kodak Co.). March 22, 1938, No. 8825. [Class 2 (iii)] Polyvinyl acetal resins are prepared by reacting polyvinyl alcohol, or a polyvinyl ester under saponifying conditions, with formaldehyde or acetaldehyde, with a saturated aliphatic aldehyde containing three or more carbon atoms, and with an aromatic aldehyde. Saponifying conditions may be produced by working in alcohol (e.g. methyl, ethyl, or iso-propyl alcohol) solution in the presence of a catalyst, e.g. hydrochloric, sulphuric, trichloracetic, or organic sulphonic acids, with or without water or dioxane. Other acetalysis catalysts are zinc chloride and phosphoric acid. There are specified : polyvinyl esters-acetate, chloracetate, propionate, butyrate ; aliphatic aldehydes-n- or iso-butyraldehyde, propionaldehyde, n-heptaldehyde; aromatic aldehydesbenzaldehyde, phenylacetaldehyde, o-chlorbenzaldehyde, m-nitrobenzaldehyde. The products may, with or without plasticizers such as tributyl phosphate, triphenyl phosphate, tricresyl phosphate, diamylphthalate, dibutyl phthalate, di- and tri-glycerol esters, e.g. acetins, propionins, butyrins, and monochlornaphthalene, be used in moulding compositions or as sheets, e.g. for interlayers for safety glass, for photographic films, or for wrapping foils. Examples illustrate the preparation of polyvinyl formaldehyde-butyraldehyde-benzaldehyde, formaldehyde-heptaldehyde-o-chlorbenzaldehyde, formaldehyde - propionaldehyde - m - nitrobenzaldehyde, acetaldehyde-butyraldehyde-benzaldehyde, acetaldehyde-propionaldehyde-o-chlorbenzaldehyde, and acetaldehyde-heptaldehydem-nitrobenzaldehyde acetal resins. Specification 483,223 is referred to. Reference has been directed by the Comptroller to Specification 483,223.
Patent GB-312434-A (GB)
Title: Improvements in packing-means for pistons and the like
IPC: F16J15/32
Filed: 1928-03-23
Abstract: 312,434. Perrett, I. G. March 23, 1928. Pistons, packing.-A piston a is packed by a ring f of rubber, asbestos &c. with or without metal reinforcing, the packing pressing very lightly on the cylinder walls, but is squeezed out against the wall by a stepped disc e mounted loosely on the piston by studs g, the disc having limited axial movement in advance of the piston to effect the squeezing out when pressure is on that side of the piston. The disc step is sloped at e<1>. For double acting engines a disc is provided on each side of the piston, Fig. 3. The piston rod may be similarly packed with ring i and ring j.
Patent GB-292280-A (GB)
Title: Improvements in or relating to pressure indicators for internal combustion engines
IPC: F02B77/08
Filed: 1927-03-31
Abstract: 292,280. Fendred, L. St. L., and Abraham, R. M. March 31, 1927 Steam-engine and like indicators.- A device to ascertain if the cylinders of an internal combustion engine are giving their proper output comprises, for each cylinder ,a pressure sensitive device with a diaphragm or other member movable in accordance with the pressure in the cylinder and cooperating with an adjustable electric contact device to operate a visible or other indicator the circuit of which is closed momentarily by an interrupter device operated by the engine in determined but adjustable relation to the engine cycle. The pressure sensitive device as shown in Fig. 2, comprises a two part casing A, A<1> forming a chamber A<3> divided by a diaphragm B constructed so that the amount of deflection will vary according to the fluctuations in presure. The part A<1> is connected to a tubular member C communicating with the engine cylinder and the part A carries a casing D which is electrically insulated therefrom. A central screwthreaded socket D<5> is provided with a member E having a bore within which is mounted a spring controlled plunger E' supported by a collar E<3>. The protruding end E<5> of the plunger serves as an electric contact to co-operate with a contact B<2> on the diaphragm. The contact E<5> is adapted to be adjusted by means of a micrometer device carried by the member E and comprising a disc F with a graduated flange F<1> surrounding a graduated flange D<6> on the member D, and a manual setting knob E<6>. In series with the contacts B<2>, E<5> is an interrupter device as shown in Fig. 1, comprising a split collar G secured to the engine cam shaft H and provided with a contact G<2> for co-operation with a contact J<1> carried by a spring arm J<2> mounted on an insulated block J<4> secured to a member J adjustably mounted by a thumb screw H<2> on a fixed member H<1>. The terminals D<3>, D' are connected to a source of current and to an audible or visable electrical indicating device so as to give an indication when the four contacts B<2>, E<5>, G<2> and J<1> are closed simultaneously. The contact J<1> can be set to any desired point in the cycle and by adjusting the member E so that the signal device is just operated, the position of the member E can be read on the micrometer scale in terms of pressure. Instead of operating the indicating device directly the closure of the circuit may energize a relay and instead of contacts such as platinum points the diaphragm movement may operate through a variable resistance or condenser to give an indication in some known manner.
Patent GB-912651-A (GB)
Title: Improvements in or relating to machines suitable for operating on shoes
IPC: A43D3/10
Filed: 1958-03-20
Abstract: 912,651. Boot-making machines. BRITISH UNITED SHOE MACHINERY CO. Ltd. (United Shoe Machinery Corporation). March 19, 1959 [March 20, 1958], No. 8904/58. Class 17 (1). A shoe-making machine, e.g. a shoe bottomlevelling machine, has a support including a pin 28 which enters the thimble 30 of the last, and a member 56, 57 which engages the inverted cone face of the supported last, and mechanism to move the member upwardly, at conclusion of the machine operation, to move the last upwardly until it is free of the last pin, and then to move the member and last laterally of the support. The mechanism is described in application to a twin shoe bottom-levelling machine having two supports and two releasing means, each support including a heel support, as shown, a toe support, an intermediate support, and a toe gauge. The twin releasing mechanisms, shown respectively in Figs. 5 and 6, include last-engaging plates 56, 57, which are flanged at 58, 59, and mounted beneath the heel ends of the lasts on slides 64, 65. The latter are slidably mounted between surfaces 68, 70, and are guided laterally by rolls 80 (not shown), 81, and 82, 83 and by fixed rolls 76 engaged in slots 74 therein. The slides are moved by levers 91, 97 which are linked at 103 for equal and opposite movement by hydraulic means, and have open-ended slots 88 (not shown), 89, engaging rolls 86 on slides 64, 65. Thus, when levers 91, 97 are turned the slides 64, 65 are first moved linearly, guided by rolls 76, 80, 81, 82, 83 and raising the lasts and shoes clear of pins 28, until rolls 76 engage the lower ends of slots 74 and the lower ends of the slides are clear of rolls 81, 83, when the slides are pivoted about rolls 76, removing the lasts and shoes into receptacles 150, as shown in Fig. 6. The hydraulic system includes a fluid-operated piston controlled by spring-returned valves which are actuated by a solenoid under control of a switch. Alternatively, the last and shoereleasing devices may be operated by treadle. Specification 897,766 is referred to.
Patent GB-593501-A (GB)
Title: Improvements in or relating to cooling systems for pistons of internal-combustion eng ines
IPC: F01P3/08
Filed: 1945-04-10
Abstract: 593,501. Cooling pistons. VIALE, S. M., and READ J. R. April 10, 1945, No. 8912. [Class 122 (i)] [Also in Group XXVII] A cooling system for the pistons of an internalcombustion engine comprises fixed jets 22 which are directed to discharge oil on to the undersides of the pistons and a circulating pump 16 which draws strained oil from the sump 10 in the engine crank-case and delivers it to the jets independently of the main oil circulating system 12-15. A scavenge strainer 11 separates the crank-case from the sump from which the circulating pump 16 draws cooling oil at a lower level than the connection of the scavenge pump. Between the circulating pumps and the jets, the relatively warm oil passes through a jacket 18 surrounding the carburetter and through a passage in the throttle valve 19.