baber/WOPTO huggingface dataset:
Patent GB-1085645-A (GB)
Title: Insecticidal compositions
Inventor: HOPKINS LESLIE OWEN
IPC: A01N53/10
Filed: 1964-06-09
Abstract: Piperonyl acetals of the general formula <FORM:1085645/C2/1> in which R is an alkyl group having 1 to 6 carbon atoms, n is 2 or 3 and x is 1, 2 or 3 are prepared by reacting a piperonylidene dihalide having the general formula <FORM:1085645/C2/2> in which X and X1 are like or unlike halogen atoms, preferably both chlorine, with 2 stoichiometric proportions of an alkali metal derivative of an etherified alkanol having the general formula MO(CnH2nO)xR in which R, n and x are as above and M is an alkali metal e.g. Li, Na or K.  The alkali metal halide produced is separated from the reaction mixture which is then worked up to the piperonyl acetals. Examples relate to the preparation of piperonyl bis(2-[n-butoxylethyl) acetal, piperonyl bis(2-ethoxyethyl)acetal, piperonyl bis(2 - [21 - n - butoxyethoxy] - ethyl) acetal and piperonyl bis (2-[21-ethoxyethoxy]ethy)acetal.ALSO:Compositions of insecticidal esters of a cyclopropane monocarboxylic acid, which acid has the general formula <FORM:1085645/A5-A6/1> wherein R2 is a methyl or methoxycarbonyl group, e.g. natural or synthetic pyrethrum type esters, contain as synergist a piperonyl acetal having the general formula <FORM:1085645/A5-A6/2> wherein R is an alkyl group having 1-6 carbon atoms, n is 2 or 3 and x is 1, 2 or 3.  The esterfifying alcohols are cyclopentenone-4-ols having in the 2-position an aliphatic ethylenically unsaturated hydrocarbon group having up to 7 carbon atoms.  Many examples of suitable piperonyl acetals and their preparation are given.  The piperonyl acetal is present in a proportion of 99-60% by weight and the insecticidal ester 1-40% by weight.  The compositions may be in the form of aerosols or concentrates or dissolved in a volatile petroleum fraction free from aromatic hydrocarbons.
Patent GB-1073583-A (GB)
Title: Draft and buffing gear for railroad cars
Inventor: DANIELSON VERNON SIMON
IPC: B61G9/04
Filed: 1964-06-09
Abstract: 1,073,583. Railway vehicle combined buff and draw gear. STANDARD CAR TRUCK CO June 9, 1964, No. 23954/64. Heading B7T. Draft and buff gears at each end of a vehicle are connected together so that a buffing load on one is transmitted also to the other, but each gear alone absorbs draft load applied at its end of the vehicle. The gears are housed in a U-shaped centre sill 2 provided with a unit casting 9 at each end. Each coupler shank 5 is slotted at 22 to receive a draft key 23 which passes through slots 18 in yoke parts 17 and through a slot 19 in a striker 10. The yokes terminate at their inboard ends in lugs 20 received in guide sleeves 13 and are supported at their outboard ends by wear-plates 21 on the strikers 10. Buffing lugs 14 and draft lugs 15 are provided to engage the draft gear housing 27 supported on plate 28 and the slot guided follower plate 25 and a compression member 6 abutted by the lugs 20 and centred in the sleeves 13 is provided to transmit the buffing loads from one gear to the other.
Patent GB-1335905-A (GB)
Title: Variable displacement hydraulic pumps and motors
IPC: F04B49/00
Filed: 1971-04-19
Abstract: 1335905 Hydrostatic transmissions SPERRY RAND CORP 19 April 1971 [16 March 1970] 23956/71 Heading F2D [Also in Division G3] In a variable speed hydrostatic transmission comprising a variable displacement pump 10 and motor 16, each having a displacement varying member 64, 94 movable against spring biasing by hydraulic actuators 74, 76, 96, 98 supplied with hydraulic pressure by manuallycontrolled, follow-up servovalves 78, 100, a load limiting valve 116 in parallel with the servovalves is responsive to the load on the pump or motor for dumping the pressure supplied to the actuators. As shown, valve 116 is responsive to the circuit pressure applied via check valve 50 or 52 and lines 54, 118 and operates to connect the actuator supply lines to sump 22 above a predetermined circuit pressure, so that pump displacement member 64 moves to its neutral position, and motor member 94 to its maximum displacement position, the biasing spring and actuator arrangement being such that the motor member moves before the pump member. Valve 116 alternatively may be responsive to shaft torque or electrical load in an electric prime mover. The circuit includes a make-up pump 26 with an inlet filter 24 and a relief valve 28 of higher pressure setting than a relief valve 44 connected via valve 46 with the low pressure main line 12 or 14. A heat exchanger 42 is provided in the drain line to the sump. Pressure is supplied to servovalves 78, 100 via pressure-reducing valve 58 and flow-limiting valve 62. Servovalves 78, 100 are operated by handle 84 through linkage 82, 106, 104, and have follow-up connections 80, 102. Valves 58, 62 and 116 are mounted in a common casing, Fig. 1 (not shown).
Patent GB-1453002-A (GB)
Title: Thermal printing head
IPC: B41J2/335
Filed: 1974-05-30
Abstract: 1453002 Resistance heating elements TEKTRONIX Inc 30 May 1974 [30 July 1973] 23968/74 Heading H5H A "thermal printing head" for use with thermally sensitive paper has on one face of a low thermal conductivity substrate 10 both a common electrically conductive member 12 and a plurality of other conductive members 16 which are in electrical contact with resistive members 14 which also contact the common member 12, have a flat surface remote from the substrate 10 and are twice as thick as the members 12, 16. The other face of the substrate 10 may be provided with an aluminium heat sink 18. Gaps 20 between the members 14 may be produced by laser cutting or the resistive members 14a (Fig. 5) may be interconnected at narrow neck sections 24.
Patent GB-258092-A (GB)
Title: Improvements in lens systems
IPC: G02B13/00
Filed: 1925-09-26
Abstract: 258,092. Warmisham, A., and Kapella, Ltd. Sept. 26, 1925. Lenses.-In photographic objectives of the Petzval type the zonal spherical aberration is. reduced, permitting a corresponding increase in working aperture, by dividing the front convergent member into two convergent members, Fig. 3. Alternatively, the convergent component of the back member of the lens may be two convergent members, or both front and back members may be thus constructed, Fig. 6. The two front convergent members are meniscusshaped and present their concave surfaces toward the back of the lens. Numerical data for examples of lenses having an aperture of F/1.5 are given in the Specification.
Patent GB-178382-A (GB)
Title: Shock-absorbing mechanism for the handle bars of cycles and motor cycles
IPC: B62K21/14
Filed: 1921-09-09
Abstract: 178,382. Allington, A. D. Sept. 9, 1921. Handle - bars. - Relates to a shock-absorbing device for the handle-bars. The handlebar 8 is connected to the stem 2 by a fitting 9 in which it can turn. The bar 8 has fixed to it a projection 12 bearing against helical springs 7. The parts forming the fitting 9 may be held together by nuts surrounding the handlebar, and the projection 12 is forked for a screwed rod 3 passing through nuts 16 which slide without turning in the stem 2.
Patent GB-282886-A (GB)
Title: Improvements relating to acetylene generators
IPC: C10H15/12
Filed: 1926-09-29
Abstract: 282,886. Brown, D. A., and Drinkwater, A. r. Sept. 29, 1926. Solid supply to liquid.-Carbide is fed from a hopper 5 into a feed chamber 4, the feeding- mechanism comprising a feed block 22 and a plunger 21 both mounted on a rod 14. The latter is secured to diaphragms 9 constituting the end walls of a chamber 6 subject to the pressure of the generated gas, the outer wall being of larger diameter than the inner wall; variations in gas pressure cause the rod 14 to reciprocate, a spring 20 acting through a bell-crank lever 16, 17 effecting the return movement of the feed device. Carbide passes from the feed chamber down a shoot 3 into the generating chamber 1. To start the generator, the feed-device is drawn back bv hand, for which purpose the rod 14 is provided at its outer end with a knob 15.
Patent GB-316983-A (GB)
Title: Improvements in the treatment of fabrics
IPC: D06P5/12
Filed: 1928-08-11
Abstract: 316,983. British Celanese, Ltd., (Assignees of Dreyfus, C.). Aug. 13, 1927, [Convention date]. Divided on 295,582. Inkless printing.-Pattern effects are obtained upon fabrics made of or containing organic substitution derivatives of cellulose, such as cellulose formate, acetate, propionate, or butyrate, methyl, or ethyl cellulose, by applying thereto, as by printing, a design in one or more substances chemically inert to the fabrics and adapted to prevent subsequent colouration, and thereafter dyeing the fabrics. Specified substances for producing the design are gelatin and casein. The dying may be effected by any suitable method, e.g. by the methods described in Specifications 182,830, 194,840, 219,349, or 224,925, [all in Class 15 (ii), Dyeing, Processes &c. for]. In the case of mixed fabrics containing silk, wool, cotton, or regenerated cellulose in association with the cellulose derivatives further effects are obtainable by utilizing the different dyeing properties of the fibres. After the dyeing the substances producing the design may, if desired or requisite, be removed. Specifications 295,582 and 314,208 are also referred to.
Patent GB-747505-A (GB)
Title: Improvements in or relating to aerials
Inventor: CHARMAN FREDERICK JOHN HENRY
IPC: H01Q21/30
Filed: 1953-09-01
Abstract: 747,505. Aerials. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 17, 1954 [Sept. 1, 1953], No. 24090/53. Class 40 (7). An aerial arrangement for use on two or more frequency bands comprises a resonant conductive aerial such as the sheet metal dipole 1, 2 coupled to a feeder 5 for operation on one frequency band and a slot or slots cut in the conductive aerial and coupled for operation in another band or other bands. As shown, vertical slot 3 is cut in dipole element 1 and coupled over feeder 6 for operation on a second band and a plurality of transverse slots 4 cut in element 2 and coupled as shown to feeder 7 for directive reception on another band. The conductive dipole elements may be tubular instead of flat (Fig. 2, not shown). Fig. 3 shows a conductive unipole element 10 and ground plane 13 coupled to feeder 11, 12. A slot 3 coupled to feeder 6 for operation in a second band is cut in element 10. If desired the slot elements may be provided with parasitic reflecting elements such as the dipole rods 14. All the feeders can be led away separately, but adjacent each other, or they may be combined by the use of suitable networks for operation over a common lead.
Patent GB-932828-A (GB)
Title: Improvements in and relating to power converting means
Inventor: HETZEL PETER JOHN GRENVILLE
IPC: H02K47/18
Filed: 1961-07-04
Abstract: 932,828. Control of A.C. motors. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 24, 1962 [July 4, 1961], No. 24106/61. Class 38 (3). [Also in Group XXXV] Dynamo-electric machines 1, 2 have their rotors 3, 4 mechanically coupled by shaft 5, the set operating either as a motor or a generator. A frequency converter 6 is mounted on shaft 5 and interconnects the polyphase rotor windings, stator winding 7 of machine 1 being connected to three-phase source 8. The stator winding 9 of machine 2 is connected to the source 8 through variable-ratio transformer 10, the phase-sequence of winding 9 being reversed in relation to that of winding 7. The converter 6, which may be of the semi-conductor type, is supplied with switching signals at twice the line frequency through capacitors 11 having stationary and rotary electrodes. The no-load speed of the shaft 5 is adjusted by varying the ratio of transformer 10. If the shaft is driven at a higher speed, the amount of power which is fed back to source 8 is controlled by setting transformer 10, the frequency of the regenerated voltage being maintained at line frequency. The mutual angular position of the two stators may be adjustable for power factor regulation.
Patent GB-1287399-A (GB)
Title: Precast concrete building construction
Inventor: RICE EDWARD KENNETH
IPC: E04B1/22
Filed: 1970-05-19
Abstract: 1287399 Prefabricated buildings; multi-storey garages, floor slabs E K RICE 19 May 1970 [2 June 1969] 24121/70 Headings E1A and E1W A building such as a multi-storey garage is constructed from prefabricated units 1, 16 and 20 apertured as at 6, 7 for the passage of tensioning tendons, adjacent units 1 being additionally bolted together and secured to foundation peers by the vertically extending tendons. The tendons are secured to anchor plates by wedge collars and wedges and pass through catenary-curved passages in the units which passages are formed by a sleeve or liner cast therein or by a rod of elastomeric material capable of extraction therefrom again, the tendon may be coated with a lubricant or encased in a sleeve. Each anchor plate may be provided with a lifting boss. For further minor details involving dimensional aspects, joints, grouting and erection the Specification and remaining drawings (not shown) should be referred to.
Patent GB-205953-A (GB)
Title: Improvements in slicing machines
IPC: B26D1/29
Filed: 1922-09-07
Abstract: 205,953. Westgate, J. Sept. 7, 1922. Casings or drums with internal revolving cutters.-A machine for slicing seeds, beans, &c. comprises a pair of relatively-moving rotary cutterdiscs B arranged at opposite sides of a space enclosed by gauze &c. E to contain the material to be treated. The cutters b' are obliquely arranged in apertures b in the discs. The seeds &c. are fed from a hopper A, and the cut material passes through the discs into a receptacle C. The discs may rotate in opposite directions.
Patent GB-994554-A (GB)
Title: Method of and apparatus for the production of a food from starch-containing material
IPC: A23P30/34
Filed: 1963-06-18
Abstract: 994,554. Extrusion apparatus. H. FLESSNER, [trading as HEINZ FLESSNER KOMM.-GES.]. June 18, 1963 [June 20, 1962], No. 24248/63. Heading B5A. [Also in Division A2] In making a food product, starch-containing raw material containing its normal amount, e.g. between 13% and 17% by weight, of moisture is fed, from a hopper 1, into the compression chamber 3 in the body 4 of an extruder and is heated therein and simultaneously compressed by a rotating screw 2, so that the food product emerges from the nozzle 5 of the extruder in a puffed or open, cooked, edible form, e.g. in the shape of a strip or rod, which may be cut into pieces of a desired length and allowed to harden. Specified materials are : tapioca, potatoes and cereals such as maize' rice or wheat particularly in the form of grits or groats. The material may be heated by the heat of compression and, if necessary, by a heating device 7 on the body 4 whose temperature may be measured by devices 11 and 12 and regulated by a cooling device 6. The screw may be cooled by a device 9. The screw may have a polished, e-g. chromium-plated, surface. The inner surface of the chamber 3 may be roughened. It may be provided with longitudinal grooves and, if desired, with one or more grooves, each in the form of a screw thread of coarse pitch. The chamber 3 may have a uniform internal diameter and the diameter of the screw may increase continuously and its pitch may decrease in the direction leading to the outlet of the extruder. As shown in the drawing, the screw 2 and the chamber 3 may each have a curved converging taper in the direction leading to the nozzle 5. In an alternative construction the diameter of the screw increases, then decreases and again increases, in the direction leading to the outlet of the extruder, so that the material is subjected to pressure increments and to decreased pressure between them. When using maize grits containing 15% of moisture, the screw is rotated at 44 r.p.m., the temperature, at point 11, is 165 C. and, at point 12, is 145 C., the nozzle 5 has a diameter of 2 mm. and the puffed rod of extruded food product has a diameter of 8 mm. The extruded food product may be coated, e.g. sprayed, with cheese and/or peanut paste, e.g. containing edible oil or peanut butter, delivered through one or more nozzles located around the nozzle 5. Flavourings such as sugar or fruit essences may be mixed with the raw material or added to the material in the extruder between the screw 2 and the nozzle 5.
Patent GB-922801-A (GB)
Title: A method of manufacturing laminated iron cores
IPC: H01F41/02
Filed: 1961-07-05
Abstract: 922,801. Making cores for dynamo electric machines; jointing. LICENTIA PATENTVERWALTUNGS-G.m.b.H. July 5, 1961 [July 8, 1960], No. 24284/61. Classes 83 (2) and 83 (4). A method of manufacturing laminated iron cores for dynamo electric machines is characterized in that two adjacent laminations are stuck together by means of a thin sheet of insulating material, e.g. paper having a thickness of from 15 to 17 Á, provided at both sides with an adhesive, e.g. polyurethanes or polyesters or combinations thereof. The insulating sheet is wetted with the adhesive and the adhesive dried by preliminary polymerization. The sheet is then cut to the size of the laminations and finally a stack of laminations alternating with the thin insulating sheets is heated under pressure to produce a laminated core.
Patent GB-756326-A (GB)
Title: Improvements in or relating to electric tumbler switches
IPC: H01H23/24
Filed: 1952-09-29
Abstract: 756,326. Tumbler switches. FRANK, E. J. Sept. 29, 1953 [Sept. 29, 1952], No. 24322/52 Class 38(5) The switch dolly 6 is held without slack in the position allowing the contact spring 2 to engage a fixed contact 3, by locating its cam portion 7 in a space formed between the spring 2 and an auxiliary, curled, spring 8. Spring 2 is biased to the closed position by its own resilience and by a coiled spring 4. The dolly pivot pin 16 is located in grooves in the top surface of the base member 12 and is held in place by plates 17, 18.
Patent GB-1033597-A (GB)
Title: Circular particle accelerators
IPC: H05H11/00
Filed: 1964-06-11
Abstract: 1,033,597. Magnetic induction accelerators. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. June 11, 1964 [June 14, 1963], No. 24329/64. Heading H1D. A circular particle accelerator, e.g. a betatron, has in addition to the windings 2 for producing the guiding field, a winding 6, as shown made up of square turns connected in series, for producing an azimuthal focusing field and means, such as electrode coatings 7, 7<SP>1</SP>, for producing a temporary transverse deflecting field at the moment of injection of the particles. The arrangement is such that particles injected during several revolutions are accepted without loss to the walls or to the gun structure 4 located at the periphery of the vacuum chamber. The electrodes 7, 7<SP>1</SP> are disposed obliquely to the central plane of the chamber or a third, neutral, electrode may be provided to prevent axial slip by the particle orbits. In another embodiment the particle deflecting field is induced by rapid variation of the azimuthal field. In order that the induced field may be zero at the centre of the vacuum chamber the turns of the azimuthal field winding approximate to semi-elliptical form; in practice they are polygonal and the turns are connected in parallel. The gun is arranged to inject the particules either tangentially to a peripheral orbit or predominantly radially with a small tangential component. An electrostatic screen formed by an inner wall coating is provided in the second embodiment. The screen may be subdivided to enable the setting up of a radial electrostatic field varying in proportion to the azimuthal field to compensate for axial slip of the particle orbits due to non- uniformity of the azimuthal field. The invention is described in connection with an aircored betratron.
Patent GB-483630-A (GB)
Title: Improvements in or relating to arrangements for supporting telephones in aviators' caps or the like
IPC: H04M1/05
Filed: 1937-09-07
Abstract: 483,630. Head-sets. SIEMENS APPARATE UND MASCHINEN GES. Sept. 7, 1937, No. 24372. Convention date, Sept. 7, 1936. [Class 40 (iv)] An arrangement for supporting a telephone instrument in aviators' caps comprises a bowlshaped member 1 provided on the open inner side with a cover 8 which is arranged to accommodate the ear of the listener and is of such dimensions and construction that the ear accommodated therein is free from external pressure. The cover 8, which is preferably of leather, is attached between the cap 5 and a lining 7 and is provided with an aperture 9 (or apertures) giving access to the diaphragm of the telephone instrument mounted within an annular projection 2 formed on the bowl 1 which is secured to the cap 5 by a split ring 6.
Patent GB-1109882-A (GB)
Title: Improvements in or relating to storing and dispensing apparatus for stacked articles
Inventor: MCPHERSON PATRICK
IPC: B65G1/07
Filed: 1965-06-09
Abstract: 1,109,882. Spring mountings. AMERICAN MACHINE & FOUNDRY CO. 22 April, 1966 [9 June, 1965], No. 24385/65. Heading F2S. [Also in Division A4] Storing and dispensing apparatus for stacked articles, e.g. plates 13, comprises a platform 9 for the plates having a depending rod 3 with staggered lateral protuberances 7 and anchored by chain 11 to the bottom of the housing, the protuberances being selectively passed through a slot in a spring abutment disc 4 so that protuberance 6 rests on the disc with the spring 12 adjustably compressed between the disc and the bottom, whereby as the top plate is removed, the spring lifts the next one to the same level.
Patent GB-288483-A (GB)
Title: Improvements in and connected with clutches for motor vehicles and the like
IPC: F16D13/22
Filed: 1927-09-17
Abstract: 288,483. Dickinson, H. R., and Bassett, H. K. Sept. 17, 1927. Clutches, friction.-In cone and other friction clutches for motor-vehicles &c., prior engagement is made by a plate clutch, in order to avoid fierceness. A friction-faced plate c is adjustably supported by studs c<1> on the friction-faced male cone b and is pressed by springs c<3>. The plate c engages the wall a<2> of the driving member a<1> before contact of the cones b, a<3>. The plate c may be mounted on the member a<1>, and the springs c' may be supplemented or replaced by dashpots.
Patent GB-408206-A (GB)
Title: Improvements in gates for the runners of blast and like metal smelting furnaces
IPC: C21B7/14
Filed: 1932-09-02
Abstract: 408,206. Blast &c. furnaces. BRASSERT & CO., Ltd., H. A., and MILES, J., Brook House, Walbrook, London. Sept. 2, 1932, No. 24565. [Class 51 (ii).] Discharging.-The iron or slag runner trough a of a blast or like smelting furnace is fitted with a vertically slidable gate which is operated, either directly or through lever mechanism e, by an electric, hydraulic, or fluid pressure device f controlled from a distant station or stations. The invention is shown applied to a lay-out of runner troughs a associated with a blast furnace b, the several gates c being actuated by fluid pressure cylinders f having, in the supply and exhaust connections h<1>, i<1>, valves j which are controlled electrically from a remote control panel k. The cylinders f are preferably disposed below the level of the troughs a, being supported by cross beams g<1> in pits g which also accommodate, below the cylinders, the supply and exhaust connections h<1>, i<1>. Means may be provided both for direct operation of the valves j and for disconnection of the power actuating device to permit hand operation of the gates.
Patent GB-284562-A (GB)
Title: An improved composite boot or shoe sole
IPC: A43B13/12
Filed: 1927-09-19
Abstract: 284,562. Soc. Anon. Etablissements Hutchinson. Aug. 2, 1927, [Convention date]. Soles.-A composite sole for boots &c. is made of rubber covered on its interior face with a sheet of cork adhering thereto or with a sheet made up of cork dust and a binding composition.