baber/WOPTO huggingface dataset:
Patent GB-649396-A (GB)
Title: Improvements in agricultural mowing machines
IPC: A01D34/03
Filed: 1948-08-05
Abstract: 649,396. Mowing machines. BAMFORD, C. J., and BAMFORD, H. V. Aug. 5, 1948, No. 20660. [Class 6(iii)] A mowing machine of the kind having one or more trailing wheels and attached to the drawbar of a tractor is pivotally connected on a substantially horizontal axis longitudinal in relation to the tractor so that the machine is free to rock about this axis to avoid setting up stresses in the machine frame due to unevenness of the ground. From a bracket 10 on the tractor extend spaced lugs 11 supporting a pin 12 transverse to the direction of travel. A bracket 13 pivoted 'on the transverse pin carries a camplate 15 mounted to pivot about a vertical pin 14. Lugs 16 depending from the camplate and spaced longitudinally relative to the tractor form bearings for a shaft 17 parallel with the channelsection drawbar 18 of the mowing machine. Strengthening ribs 19 connect the lugs 16. Longitudinally spaced lugs 20 within the drawbar, channel support the ends of the shaft 17, which is located by a set screw. A spring-pressed plunger slidably mounted on the bracket 13 cooperates with the cam 15 as described in Specification 566,593.
Patent GB-595312-A (GB)
Title: Improvements in electric pulse generators
IPC: G01S7/282
Filed: 1944-10-24
Abstract: 595,312. Pulse generating circuits. WESTERN ELECTRIC CO., Inc. Oct. 24, 1944, No. 20671. Convention date, Sept. 14, 1943. Addition to 585,359. [Class 40 (v)] In a modification of the pulse-generating system described in the parent Specification, in which upon the flow of current in an inductor 18, being interrupted, the energy is transferred to a condenser 20 and suddenly discharged through the load 10, a saturable inductor 33 is used to transfer the energy from the condenser 20 to the load 10. A polarising magnetic force is applied to saturate the core of the inductor 33, magnetizing it in the same sense as the discharged current of condenser 20, the inductor passing to the opposite saturation region, while the energy is being stored inductively prior to transfer to condenser 20 and back again when the transfer is complete to cause the discharge of the condenser through the load circuit, thereby increasing the amount of energy stored inductively. Inductor 33 is provided with a bias winding 32 fed with current from battery 34 through choke 35. In a further modification, Fig. 2, (not shown), to avoid using a separate winding, the bias current may be passed through the main winding. Alternatively, Fig. 3, (not shown), to avoid using both a secondary winding and battery the condenser 36 may be shunted by a resistance. U.S.A. Specification 2,063,342 is referred to.
Patent GB-509870-A (GB)
Title: Improvements in and relating to iron-cored choke coils having adjustable air gaps
IPC: H01F29/10
Filed: 1938-07-12
Abstract: 509,870. Inductances. BRITISH THOMSONHOUSTON CO., Ltd. July 12, 1938, No. 20692. Convention date, July 12, 1937. [Class 38 (ii)] In a choke coil in which the core comprises two groups of laminations a, c separated by a gap which is formed by a layer of non-magnetic material e, the laminations of each group are clamped between pressure plates h having inclined faces n at their ends which co-operate with wedge-shaped washers m so that on tightening the clamping nuts l to clamp the individual laminations of the groups, the two groups are forced against the non-magnetic layer e by pressure applied through the bolts k to the outside edges of the laminations. Instead of E-shaped laminations forming shell-type cores, U-shaped laminations forming core-type cores may be used.
Patent GB-656098-A (GB)
Title: Method of purifying normally liquid chlorides of silicon, titanium and tin
IPC: C01G23/02
Filed: 1948-08-05
Abstract: Normally liquid silicon, tin and titanium chlorides containing coloured metal chlorides are purified by heating a mixture of the liquid chloride and 0.5-2.5 per cent by weight of an organic compound not containing a metal so as to carbonize it and separating the chloride from the carbonization product having the impurities absorbed thereon.  Several suitable liquid, solid and gaseous organic compounds are specified, including vegetable and mineral oils, fats, saturated and unsaturated hydrocarbons, alcohols, ketones, amines, acids, &c.  The optimum carbonization temperature varies for different groups of compounds from 100 DEG  to 500 DEG  C.  The treatment may be effected under pressure, e.g. at 30 ats.  A statement of the art refers to purification: (i) by absorption of the coloured chlorides on active carbon, silica gel, &c., (ii) by convertion of the coloured, volatile chlorides at high temperature by means of hydrogen, into non-volatile chlorides, and (iii) by treatment with sulphur soap, or with metal powder in the presence of alkalis to convert the coloured chlorides into non-volatile compounds from which the liquid chlorides may be distilled.  The Specification as open to inspection under Sect. 91 refers to the purification of normally liquid chlorides of the 4th group of the periodic system. This subject-matter does not appear in the Specification as accepted.
Patent GB-647812-A (GB)
Title: Improvements in or relating to flooring or like tiles
IPC: E04F15/10
Filed: 1948-08-09
Abstract: 647,812. Flooring tiles; skirtings. FREEMAN, W. S. Aug. 9, 1948, No. 20938. [Classes 20(iv) and 87(i)] A flooring tile 20, preferably of rubber, and of triangular, square, rectangular, pentagonal, hexagonal or sector shape is formed along at least one edge with a channel 24 or 25 in one main face leaving a rib 26'between the channel and the edge face, on at least another edge with a tongue or tongues 21, 22 and on at least one other edge with a corresponding groove. The channel and rib may be of angular or rounded form, and the tongues and grooves may be of angular, tapered or rounded form; two or three tongues and grooves may be provided in the thickness of the tile. L-shaped floor-edge tiles 31 are provided having tongues, grooves or rabbets to engage adjacent floor tiles.
Patent GB-565329-A (GB)
Title: Improvements in or relating to apparatus for marking condensers
IPC: H01G2/24
Filed: 1943-12-14
Abstract: 565,329. Embossing-machines. TOBE DEUTSCHMANN CORPORATION. Dec. 14, 1943, No. 20944. Convention date, July 16, 1943. [Class 100 (ii)] [Also in Group XXX] A machine for embossing marks on electrical condensers, such as comprise rectangular blocks of thermoplastic material such as artificial resin from which at opposite sides project conductor wires, is constructed with one or more rotary carriers 23, 24, Fig. 2, mounted on a shaft 11 which is given an intermittent rotation equal to a sixth of a revolution by Geneva stop mechanism from a shaft 6 which is driven from a main shaft through a friction clutch. Two or more sets of carriers 23, 24 are mounted on the shaft 11, and they may be of different widths for accommodating condensers of different sizes. Each carrier is formed of two discs 25 separated by a space 26 and formed with recesses 27 fitted with spring clips 28, Fig. 7, having friction pads 29 for engaging the sides of a condenser. The condensers are fed from tables 59 formed with stops 60 to vertical magazines formed of curved plates 48 and members 49, 50, 52, 53, 54, as shown in Fig. 4, shaped to receive the body of the condenser with recessed parts 57 to receive the conductors 77. At the bottom of each magazine, the condensers are held by a stop plate 62 in registered position for a reciprocating pusher 64 to push a condenser into one of the recesses 27. When the condensers reach the position 27m, Fig. 3, they are acted upon by a marking cylinder 32 which can be set to the required position and held by a screw, or by a single die member, both members being mounted on arms on an oscillating shaft 30 actuated from a cam on the shaft 6. The marked condensers are delivered at station 27e by oscillating arms 73 actuated by eccentric mechanism from the shaft 6. The dies are heated electrically under control of switches 40.
Patent GB-1119453-A (GB)
Title: Improvements in and relating to ejector apparatus for article feed lines
Inventor: JENNER HAROLD
IPC: B65G47/84
Filed: 1966-05-11
Abstract: 1,119,453. Conveyers. UDEC Ltd., H. JENNER, and J. R. MADLEY. 5 May, 1967 [11 May, 1966], No. 20963/66. Heading B8A. Articles, e.g. milk bottles which contain a foreign body, are detected and rejected from a feed line by a rotor which co-operates with deflectors operable in response to a detecting device. A gate for controlling the articles is also provided. A conveyer 2 feeds bottles on to a dead track 4 comprising bars 5 and blocks 5a of P.T.F.E., for example, the bottles which are not contaminated engaging a freely rotatable rotor 9 and, because a gate 38 extends across a gap 37, continuing along the track 4 back on to the conveyer 2. When a faulty bottle 7 is detected by a device 6, one of a plurality of deflectors 15 is actuated and, in co-operation with the opposite recess in the rotor 9, prevents the bottle from continuing along the track 4. To enable the bottle to pass along a take-off track 28, the gate 38 is withdrawn under control of the device 6 and the bottle is discharged on to a driven turntable 29. In a modification, Fig. 3, the track 4 includes rollers preferably having surfaces of nylon or P.T.F.E. The latter material may also be used for plate portions 58 of the track. The shaft 13 carrying the recessed rotor is driven from the drive for the turntable 29.
Patent GB-402885-A (GB)
Title: Improvements in or relating to means for attaching hay and the like sweeps to motor vehicles
IPC: A01D87/08
Filed: 1932-07-26
Abstract: 402,885. Hay &c. sweeps. HOSIER, A. J., Wexcombe House, Marlborough, Wiltshire. July 26, 1932, No. 21091. [Class 6 (iii).] To attach a hay or like sweep to the dumb irons of a motor vehicle angle bars 4, 5, are pivoted to the forward transverse bar 2 of the sweep frame and are secured by bolts 7 to the rear transverse bar 3 the holes through which the bolts 7 pass being slotted. The ends of the bars 4, 5, are provided with holes 10 adapted to fit over pins 11 which pass through the dumb irons 12 and support the springs 13 of the vehicle to which the sweep is attached. The bars 4, 5, are drawn together over the pins by nuts 9 on a radius rod 8, the nuts on the bolts 7 and pivots 6 then being tightened. In a modification plates are attached to the dumb irons to which the arms 4, 5, may be pivoted by bolts or studs : in the former case the radius bar may be dispensed with.
Patent GB-718841-A (GB)
Title: Improvements in and relating to nozzle and roller arrangements for tensionless driers
IPC: F26B13/10
Filed: 1952-08-22
Abstract: <PICT:0718841/IV(c)/1> Apparatus for treating textile webs with gaseous fluids has an upper row of nozzles 12 and a lower row of nozzles 13 with orifices 12a, 13a respectively through which hot gases are blown, between which nozzles the web 14 passes on rollers 16, 17 arranged within exhaust channels 18, 19 separating adjacent nozzles, the nozzles and rollers being so arranged that the two rows of nozzles are in staggered relation and rollers are each opposite a nozzle.  The web is fed free from tension having loops C and D and the rollers are driven by an endless chain 30a on sprockets 22, 23, 33.  Specifications 703,391, 703,556, [Group XIII], and 718,418 are referred to.
Patent GB-1038367-A (GB)
Title: Penicillin derivatives
Inventor: BERG JOSEPH GEORGE FEIN
IPC: C07D499/46
Filed: 1963-05-28
Abstract: The invention relates to reaction products of chitosan and de-N-acetylated chondroitin with benzylpenicillin or benzylpenicillenic acid, the polyaminosugar and benzylpenicillin or benzyl-penicillenic acid being bound through an amide linkage. The polyaminosugar and benzyl-penicillin or benzylpenicillenic acid are reacted in an aqueous medium, preferably at 35 to 40 DEG  C. The compounds are used to test for penicillin sensitivity in humans.
Patent GB-336263-A (GB)
Title: Improvements in furnaces
IPC: F23H11/00
Filed: 1929-07-10
Abstract: 336,263. Babcock & Wilcox, Ltd., (Babcock & Wilcox Co). July 10, 1929. Walls; baffles. - A furnace wall is cooled by plurality of water-tubes 22 and 32 connected to upper and lower headers 27 and 24, 34, and arranged in groups, the tubes of one group alternating with the tubes of another group, the tubes being arranged in contact or spaced apart so as substantially completely to cover and protect the wall and the tubes 22 of one of the groups extending diagonally across the furnace chamber to constitute an ash-cooling or slag screen. The two groups of tubes enter the header 27 on different lines. The lower ends of the slag screen tubes are covered with refractory material 29, forming an arch over the rear of the furnace. A wall 30 fills the space between the refractory lining and the chamber lining 20. The side walls are cooled by two sets of tubes 38 and 39 alternating across the wall, the tubes 38 being connected to headers 40 and 41, and tubes 39 to headers 42 and 43. A single header may replace headers 41, 43, the tubes being brought into the header at different angles. The tubes may be staggered, a plastic lining of refractory material being retained in place by and between the tubes. The headers are connected to the water-tube boiler 18.
Patent GB-1140435-A (GB)
Title: Improvements in or relating to device for the sealing of a rotatable shaft
IPC: F16J15/40
Filed: 1967-05-08
Abstract: 1,140,435. Seals. SOC. D'ETUDES ET DE DEVELOPPEMENT DES INDUSTRIES MODERNES. 8 May, 1967 [12 May, 1966; 28 Nov., 1966], No. 21275/67. Heading F2B. A device for sealing a compressor shaft 3 and permitting a limited leakage comprises a sleeve 2 disposed around the shaft with slight play and sealed to a casing 1 as by an 0-ring 6, the sleeve or shaft being made of P.T.F.E. or graphite to prevent them from seizing during acceleration or deceleration of the shaft, while during normal running the sleeve serves for an aerodynamic or hydrodynamic bearing. The sleeve 2 may be sealed to the casing by a bellows or a diaphragm instead of an 0-ring. The clearance between the sleeve and shaft may be controlled by supplying fluid pressure to the outer or inner surface of the sleeve to distort it, Figs. 4, 5 and 7 (not shown). Two sleeves may be used in series when the pressure difference is great, fluid of an intermediate pressure being supplied between the two sleeves, Fig. 8 (not shown). The device may also be used for sealing liquid or steam.
Patent GB-944872-A (GB)
Title: Improvements in or relating to the production of phosphides and arsenides
IPC: H01L29/00
Filed: 1960-06-17
Abstract: Phosphides and arsenides of boron, aluminium, gallium, or indium are produced by mixing a volatile compound of the Group IIIB element and a volatile compound of phosphorus, or arsenic in the gas phase at 500-1500 DEG  C. in the presence of hydrogen.  The partial pressure of the phosphorus or arsenic compound is greater than that of the Group IIIB compound and, when BP is being produced, the partial pressure of phosphorus is at least equal to the decomposition pressure of BP.  Halides of P or As, e.g. PCl3, PBr3, PI3, PCl5, PBr5, or AsCl3, may be used and compounds of the Group IIIB element may be chlorides, bromides or iodides, of B, Al, Ga, or In, di-, penta-, or deca-borane, trimethyl-boron, aluminium, gallium, and indium, triethyl-boron, aluminium, or gallium, tri-propyl-, -isopropyl-, or tertiary butyl boron, ethyl substituted penta-, or deca-borane, tri-isobutyl aluminium, or methyl gallium dichloride. The partial pressures in the system may be 85-70% H2, 5-15% Group IIIB element compound, 10-20% P, or As compound. Pressures may be subto super-atmospheric, e.g. 0.1m  to 1500 mm. Hg.  The reactants may be introduced separately or premixed into a quartz, porcelain, or carborundum tube heated by resistances, or by a Ta, W, Ti, or Mo filament on which the product is formed.  The product deposited from the vapour phase may be in the form of a coating on a shaped form. Specific reaction conditions are given for each product. Specification 923,860 is referred to.
Patent GB-204031-A (GB)
Title: Improvements in structural toys
IPC: A63H33/04
Filed: 1923-08-24
Abstract: 204,031. Mackeprang, E. Sept. 13, 1922, [Convention date]. Building-blocks and the like.-A structural toy comprises suitably shaped plates, blocks, &c. provided with holes or notches for the reception of connecting pieces shaped to resemble parts of the completed structure. In the example shown, a ship is constructed of superposed flat plates 1 connected by parts 2 representing the masts, funnels, &c.
Patent GB-839785-A (GB)
Title: Apparatus for the erection of tunnel linings
Inventor: CLARK JAMES ALEXANDER MUIRHEAD
IPC: E21D11/12
Filed: 1957-07-08
Abstract: 839,785. Tunnel linings. BRAND & SON Ltd., C. July 7, 1958 [July 8, 1957], No. 21620/57. Class 85 Apparatus for use in the erection of blocks 1 to form a tunnel lining comprises an arm 4 pivoted at one side of the tunnel, and moved by a jack 11 to position blocks supported by the arm in the upper part of the lining. As shown two arms are pivoted to a Greathead shield 3 at 5, the pivots being adjustable radially and vertically. Also mounted on the shield is a vertical elevator 13 operated by a jack 14 to raise a key block 17. When a complete ring of blocks is in place it is expanded by means of jacks inserted between blocks, and fixed by concrete cast in situ.
Patent GB-1476557-A (GB)
Title: Devices for determining mass air flow in a conduit
IPC: F02D41/34
Filed: 1975-05-20
Abstract: 1476557 Air-flow measurement FIAT SpA 20 May 1975 [1 Aug 1974] 21628/75 Heading G1G In a device for measuring ultrasonically the mass flow of air the air passes through a duct 1 via inlet chamber 2 and exits via chamber 3, chambers 2 and 3 having respectively a peripheral opening and a baffle plate 20 so that the air-flow in the region of Piezo-electric transducers 12, 24 is radial with respect to the duct's longitudinal axis. This arrangement avoids air turbulence which might affect the measurement. The chamber 2 opening is provided with an annular air filter 9. The transducers and baffle plate are supported at 10, 21, 22 for adjustable positioning to minimize turbulence and, when the device is used connected to the induction manifold of an internal combustion engine, to minimize the effects of induction-stroke vibrations on the performance of transducer 24.
Patent GB-269395-A (GB)
Title: Improvements relating to type-composing machines
IPC: B41B11/82
Filed: 1926-09-02
Abstract: 269,395. MacBrayne, L. Sept. 2, 1926. Metal-pots. - Means for supplying solid metal to the metal-pot comprises a magazine 1 for ingots or slugs, which is detachably mounted on the machine frame, and participates in the tilting movement of the pot 12, a co - operating ejector 8 being also mounted on the machine frame. The magazine is supported by trunnions 10 from a fixed bracket 13, and has at its lower end trunnions 14 which engage a bracket 15 on the pot. The tilting movement of the pot causes the ejector 8, which is pivoted on the machine frame, and is supported by a stop 16, to pass into the lower end of the magazine and eject an ingot or slug.
Patent GB-1394091-A (GB)
Title: Apparatus capable of withstanding a high internal pressure and a method of building the same
IPC: F16J12/00
Filed: 1972-05-09
Abstract: 1394091 Making pressure vessels SNAMPROGETTI SpA 9 May 1972 [13 May 1971] 21666/72 Heading B3A [Also in Division B1] An apparatus comprising an internal shell or a plurality of superimposed internal shells formed of an elastic metallic material capable of withstanding high pressure and suitable for forming the sole shell of a single-shell pressure vessel; and, over the internal shell(s), an external shell or a plurality of superimposed external shells formed of the same or a different metallic material as that of the internal shell(s); wherein the external shell or the innermost external shell completely covers and abuts the internal shell or the outermost internal shell; wherein the or each internal shell is partially or totally "yielded" (i.e. deformed beyond its elastic deformation range); wherein the external shell or the innermost external shell is not welded to the internal shell or to the outermost internal shell; and wherein, when the or each external shell is formed of a plurality of annular shell segments in end-to-end relationship, the segments are not welded circumferentially to adjacent segments in the same shell. The internal shells may consist of cylindrical annular plates joined endto-end, or arcuate plates longitudinally and circumferentially welded to form a cylinder, or an enbloc tube or tubes, or any combination of these. The external shells which are preferably of carbon steel may be either forged or calendered and welded or rolled annular plates; the external shells are heated, slipped on to the internal shell(s) or inner external shell(s) and allowed to cool. In order to allow easy diffusion of hydrogen through the internal shells to the outside, a steel strap may be wound around the (outermost) internal shell before applying the (innermost) external shell so as to leave a hollow space therebetween, between the windings of the strap. After construction, the whole pressure vessel is subjected to hydrostatic or other internal pressure to "yield" the internal shell(s), and may also be annealed.
Patent GB-1174985-A (GB)
Title: Process for Pretreating the Internal Surface of Blow-Moulded Articles made of Thermoplastics
IPC: C08J7/12
Filed: 1967-05-10
Abstract: 1,174,985. Coated articles. STAMICARBON N.V. 10 May, 1967 [14 May, 1966], No. 21675/67. Heading B2K. [Also in Divisions B4 and B5] Blow-moulded thermoplastic articles are treated on their internal surfaces before leaving the blow-moulding machine with an oxidative gas to improve the adhesion between the surface and a coating to be applied on it. The blow-moulding material is preferably a polyolefin e.g. high- or low-density polyethylene, polypropylene, poly(4-methyl pentene-1), or α- olefin copolymers e.g. ethylene/vinyl acetate, ethylene/methyl acrylate. The coating may be polyvinylidene chloride. The oxidative gas preferably contains ozone e.g. a mixture of air or oxygen and ozone. The ozone may be produced by a corona discharge inside the article. An accelerator, preferably chlorine, but also bromine, nitrous oxide, hydrogen chloride or hydrogen bromide may be included in the gas in a concentration lower than that of the ozone.