baber/WOPTO huggingface dataset:
Patent GB-1270026-A (GB)
Title: Air driven motor
IPC: F04B9/127
Filed: 1969-05-16
Abstract: 1,270,026. Compressed air motors driving reciprocating pumps and compressors. HASKEL ENG., & SUPPLY CO. May 16, 1969 [Feb. 13, 1969], No. 25198/69. Headings F1A, F1M and F1N. An air operated liquid or gas pump comprises a pumping piston 16, an integral motor piston 14 reciprocable in a cylinder 12, and a shuttle valve 122 movable by air-pressure to cause the alternate supply and exhaust of air to the cylinder 12 through a passage 114. In the position of the shuttle shown, air passes to the cylinder 12 from an inlet 146 and when the shuttle is displaced to the right the cylinder exhausts through an outlet 108. In the embodiment shown the pressurization of the shuttle is caused by the opening of a pilot valve 156 by the piston 12 at the end of the spring return stroke, whereas the de-pressurization is caused by a piston extension 220 uncovering an exhaust passage 234 at the end of the pumping stroke. In a second embodiment, Fig. 1 (not shown), the function of the piston extension 220 is performed by a second pilot valve (192) opened by the piston. In a third embodiment, Fig. 4 (not shown), the piston extension alone controls the movement of the shuttle valve.
Patent GB-616066-A (GB)
Title: Improvements in or relating to starting devices for gas turbines or the like
IPC: F02C7/277
Filed: 1946-08-23
Abstract: 616,066. Starting. CLEAVE, E. S., and PLESSEY CO., Ltd. Aug. 23, 1946, No. 25235. [Class 7 (v)] A starting device comprises the combination of a cartridge-operated starter which effects single stroke movement and converts it into rotary movement and a gas-operated starting turbine which is connectible through suitable gearing and clutch device to the cartridgeoperated starter, the exhaust gases from the cartridge starter being directed to the gasoperated starting turbine, whereby the cartridge starter provides the initial starting and the exhaust gases from the starter are used to continue rotation of the gas-operated starting turbine which enables the period of operation to be prolonged. Cartridges are carried in a rotary feed mechanism 1 and firing is effected by a spring-loaded striker 13. The gases in the cartridge starter 2 cause rotation of a driving element 4 through a free-wheel 6 and engagement of a dog clutch 5. The free-wheel 6 transmits motion through reduction gearing 9, 10 to a starting turbine 7. When the exhaust part of the cartridge starter 2 is opened, the gases pass through a pipe 11 to the starting turbine 7 in order to maintain for a further period the rotation of the latter and hence the driving element 4. The gases are finally discharged through an outlet in the starting turbine casing. If further rotation of the starting turbine is necessary another cartridge is detonated by an auxiliary firing mechanism 14 and the gases are led by a pipe 12 to the starting turbine 7. Specifications 355,022 and 562,807, [Group XXI], are referred to. The Provisional Specification states that the gearing may be epicyclic in form and also that an electric motor may be used to continue the rotation instead of a turbine.
Patent GB-1518163-A (GB)
Title: Boxes
IPC: B65D5/36
Filed: 1976-06-14
Abstract: 1518163 Collapsible boxes BOSTON TIMBER FABRICATIONS Ltd 14 June 1976 [12 June 1975] 25240/75 Heading B8P A collapsible box, e.g. for chilled chickens comprises four sides and a base 4, the sides being foldable along their junctions with the base 4 and the base 4 being foldable along a central line 5. Two sides 6, 7 are integral with the base 4, while the other sides are defined as open structures by wooden members 8, 9 which engage in slots 14 of side flanges 10, 11 and are attached by stapling. Portions 15 are doubledover to form corner posts, and corner pieces 17 facilitate stacking. The box is collapsed by folding the walls 6, 7 inwardly about portions PE, QF of the line 5 and pushing the base downwardly to fold about a portion GH of the line 5, Fig. 4 (not shown), which portion is formed as a double fold line to allow for the thickness of the base 4. In a modification, Fig. 6 (not shown), a deeper box is provided by forming the open sides with two parallel strips of wood (8), (18).
Patent GB-858478-A (GB)
Title: New and improved weather-proofing means for adjustable louvres
IPC: E06B7/084
Filed: 1959-07-23
Abstract: 858,478. Louvre shutters. TURNER & SCOTT PTY. Ltd., C. July 23, 1959 [July 23, 1958], No. 25355/59. Class 20(3) In a louvre shutter having louvres supported at opposite ends in channelled clips 16 mounted for pivotal movement in unison about horizontal axes, and which have, when closed as shown in Fig. 3, portions of adjacent louvres overlapping, a draught excluder to stop draughts between the louvre ends and the jambs 10 comprises, extending between each pair of adjacent louvres, a pair of parallel weather beads 27, 28, e.g. pressed out of the base of the channelled-section jamb 10, wholly on respective sides of the line through the pivots 15 of the clips and inclined thereto from front to rear downwards, the upper section 32 of the rear bead 28, and the lower section 33 of the front bead 27 protruding further from the jamb surface than the other sections 29, 31 of the beads and the clips 16 are so mounted on a pivot-disc 15 rotatable in a pivot boss 26 in the jamb as to move counter clockwise to the closed position over the sections 29, 31 to engage against the sections 33, 32. The boss 26 protrudes from the jamb to a lesser extent than the sections 32, 33 but to a slightly greater extent than the sections 29, 31 or equal to the protrusion of these latter.
Patent GB-730363-A (GB)
Title: Improvements relating to internal combustion engines
Inventor: KREMSER JOHANN
IPC: F02B3/06
Filed: 1953-09-14
Abstract: 730,363. Casings ; cooling cylinders fuelinjection pumps. HANNOVERSCHE MASCHINENBAU-AKT.-GES. VORM G. EGESTORFF, HANOMAG. Sept. 14, 1953, No. 25362/53. Classes 7(2) and 7(3). A crankcase 1 designed to withstand normal operating stresses and supporting a crankshaft 3 and one or more cylinders 5 carries low-strength casings 11 ...13 as of pressed sheet metal, thin pressure diecastings or non-metallic material and externally thereof engine auxiliaries such as pumps and a generator on brackets 16, 23 each able to withstand the normal operating stress of its auxiliary and extending through one or more of the casings, as by gasketted openings therein. The casings may include a cooling-water jacket or jackets but, as shown applied to a single-cylinder twostroke engine, comprise an oil sump 11, a timing and other auxiliary drive gear housing 12 and a scavenging air receiver 13, while the bracket 16 carries a fuel-injection pump 15 and is tubular to enclose and guide a cam-operated pump push-rod, and the bracket 23 carries a cooling-water pump (not shown) and is tubular to supply water to crankcase waterways. The bracket 23 is supported in a bracket 26 for engine suspension purposes.
Patent GB-244228-A (GB)
Title: Improvements in or relating to the method and means for producing stencils for duplicating apparatus
IPC: B41C1/14
Filed: 1924-10-24
Abstract: 244,228. Hartmann, H. Oct. 24, 1924. Stencils.-An apparatus for producing stencils from stencil sheets comprises a celluloid or simi. lar transparent sheet which is roughened by being pressed, whole soft, into contact with a. fine fabric, the stencil sheet being placed over it, and the design &c. to be duplicated marked thereon by a stylus. To enable lettering &c. to be reproduced, the transparent roughened sheet C is mounted on a base plate A provided with a ribbed metal portion f with which engage similar ribs on a slide plate consisting of a metal plate B<1> covered by a second metal sheet B<3> slotted at B<5> to receive the shaped ends of a sheet of paper D bearing the lettering to be copied. The provision of the engaging ribs on the slide plate and base plate allows the first to be moved parallel to itself for adjusting the different lines of printed matter to be copied. The plates B<1>, B<3> are connected by soldering &c. or by turning the longitudinal edges of the plate B<3> over the plate B<1>.
Patent GB-650355-A (GB)
Title: Improved means for detecting and measuring strains and deflections in airframes and other structures
IPC: G01M5/00
Filed: 1948-09-29
Abstract: 650,355. Dynamometers. VICKERS-ARMSTRONGS, Ltd., and LAMBIE, J. B. Sept. 29, 1948, No. 25382. [Class 106 (ii)] Apparatus for detecting and measuring strains or deflections in structures such as the top spar boom 2, 4 of the wing of an aircraft comprises a cylinder 10 fixed by a clamp 5 to one part of the boom containing a plurality of axially adjustable contact members 13 adapted to be contacted by fingers 21 mounted in a piston 11 rigidly connected by a link 3 and a clamp 7 to a different part of the structure. Deflection of the link 3 causes the piston to advance to bring the fingers 21 successively against the contacts 13 which are set at different amounts of projection. Thus the number of contacts energized is a measure of the strain on the boom. Each contact 13 is associated with an indicator, recorder or counter. The connection between the link 3 and the clamp 7 is adjustable. The piston 11 is restrained from rotation by a key in the cylinder 10. In the position of rest some of the contacts 13 may contact their fingers so that deflection in the opposite sense may be indicated by the breaking of these circuits. The fingers 21 have stop-collars 21a, springs 22 and adjusting screws 26.
Patent GB-509876-A (GB)
Title: Improvements in closure members for bottles and like containers
IPC: B65D41/04
Filed: 1938-08-30
Abstract: 509,876. Closures for bottles &c. SOC. ANON. DES PAVILLONS. Aug. 30, 1938, No. 25404. Convention date, Jan. 26. [Class 125 (iii)] The sealing-element 4 of a screw-on-cap 1 is of inverted-cup shape so as to provide a joint at the upper surface of the neck of the bottle &c. and a further joint between the lateral external surface of the neck and the sides of the cup. The axial length of the element 4 is considerably less than its diameter. A still further joint may be obtained by arranging that the rim 2 of the cup 4 engages a shoulder 6 on the bottle neck. Sealing at the upper surface of the neck is assisted by forming the interior surface of the cap with a convex portion or with a projection 3. The top of the cup 4 may be thinner than the rim, and it may be convex towards the interior.
Patent GB-1315705-A (GB)
Title: Injection mould
IPC: B29C45/33
Filed: 1970-05-27
Abstract: 1315705 Injection moulding CROUZET 27 May 1970 [29 May 1969] 25409/70 Heading B5A An injection mould for forming cam assemblies 3, 3a has a fixed part 21 and a movable part 6, the part 21 supporting radially slidable dies 2 and 5 having segments 1 for forming the cam surfaces and inclined bores 2a and 5a which co-operate with inclined pins 7 and 8 respectively to move the dies 2, 5. A cranked lever 14, pivoted on the lower part 21, has a surface 14a which co-operates with a projection 6b on the part 6 to move a plunger 29 to initiate ejection of the assembly via a pin 10. Subsequent ejection is carried out by pins 19 and a plunger 26. The rotational position of the dies can be adjusted by threaded pins (31), Fig. 3, not shown, which abut radial pins 30, 15a, or by threaded pins (34), Fig. 4, not shown, which rotate a die section (4<SP>1</SP>) in a circumferential groove (32a).
Patent GB-283636-A (GB)
Title: Improvements in multiple-cylinder reciprocating air and like pumps
IPC: F04B27/10
Filed: 1926-10-13
Abstract: 283,636. Boyce, R. D. Oct. 13, 1926. Pump-actuating mechanism.-In a swash-plate compressor as in Specification 170,786, the ball- and-socket connection between the swash plate and the pistons is discarded, and the pistons are forced towards the plate by conical springs 30, fitting over the conically-ended pistons. Each cylinder boring has a stud 37, which may be screwed in to retain the piston in the cylinder whilst putting up or taking down the pump. The rollers 15 which actuate the swash plate have spherical surfaces, engaging a groove 20 with line contact, and are set so that two rollers run in the middle of the groove, whilst the other two engage its outer and inner parts, as shown. Inlet and outlet valves for each cylinder are carried in the cover plate 40, and communicate respectively with the inlet opening and the discharge space 43. A ball bearing 26 takes the thrust of the flywheel 14, and the ends 35 of the pistons engaging the swash plate are dome shaped.
Patent GB-1172013-A (GB)
Title: Process for producing Polybutadienes
Inventor: ALFEROV ALEXANDR VASILIEVICH
IPC: C08F136/06
Filed: 1967-06-02
Abstract: 1,172,013. Polymerizing butadiene. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT - SINTETICHESKOGO KAUCHUKA IMENI AKADEMIKA S.V. LEBEDEVA. 2 June, 1967, No. 25601/67. Heading C3P.  Polybutadiene is made by polymerizing butadiene-1,3 in the presence of a catalyst consisting of (1) a #-allylic complex of a Group IV to VIII transition metal, e.g. nickel, cobalt, or molybdenum, and (2) a halogen, or cyano derivative of benzoquinone, a halogen, hydroxy or nitro derivative of benzene, or a salt, ester or acid chloride of a halogen-substituted organic acid or the reaction product of (1) and (2). Exemplified (2) compounds are tetrachloroo- and p-benzoquinone, 3, 6-di-bromo-p-benzoquinone, 2,3 - di - chloro - 5,6 - dicyano - benzoquinone, 1,3,5 - trinitrophenol, m-nitrochlorobenzene, zinc, manganous, and ethyl trichloroacetic acids, cobaltous trifluoroacetate, and methyl - α,α,γ - chlorobutyrate. The polymerization may be effected in bulk, or in a hydrocarbon or halogenated hydrocarbon solvent or diluent. Microstructures of polybutadienes are given.
Patent GB-1471151-A (GB)
Title: Process for the production of alkenes
IPC: C07C6/04
Filed: 1973-05-30
Abstract: 1471151 Disproportionating and isomerizing alkenes SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 28 May 1974 [30 May 1973] 25637/73 Heading C5E A process for the production of an alkene with at least 6 carbon atoms per molecule, or a mixture of such alkenes, comprises (1) catalytically disproportionating a mixture of predominantly non-terminal alkenes which mixture includes a major proportion of an alkene or alkenes having a larger nnmber of carbon atoms than the alkene(s) to be produced and, optionally, an alkene or alkenes having a smaller number of carbon atoms than said alkene or alkenes, (2) isomerizing at least part of the resulting disproportionation product, which part of said product contains an alkene or alkenes with the same number of carbon atoms as the alkene with at least 6 carbon atoms per molecule or mixture thereof to be produced, (3) catalytically disproportionating at least part of the resulting isomerization product together with at least one non-terminal alkene with a larger number of carbon atoms than the alkene with at least 6 carbon atoms per molecule or mixture thereof to be produced, said at least one non-terminal alkene being added to said isomerization product and/or being present therein as a result of being present in the disproportionation product of stage (1), and (4) removing the desired alkene or alkene mixture from the product of stage (3). The feedstock may be obtained by oligomerization of ethylene followed by double bond isomerization. The disproportionation catalyst may be an oxide of Mo and of Co supported on alumina. The isomerization catalyst may be a basic salt of potassium supported on active alumina.
Patent GB-170469-A (GB)
Title: Improvements in sparking plugs
IPC: H01T13/04
Filed: 1920-09-06
Abstract: 170,469. Brown, A. G. Sept. 6, 1920. Addition to 145,348. Sparking-plugs.-A nickel terminal d traverses the part b of the plug casing and is screwed into the transversely mounted insulated tube c, the interior of which is open to the atmosphere.
Patent GB-807477-A (GB)
Title: Improvements in or relating to centrifugal clutches
IPC: F16D43/08
Filed: 1956-08-22
Abstract: 807,477. Controlling clutches. FRANCAISE DU FERODO S.A. Aug. 22, 1956 [Oct. 22, 1955], No. 25704/56. Class 80 (2). In a centrifugal clutch having means which provide at least two torque/speed characteristics, the change from one characteristic to another is controlled by means external to the clutch. A centrifugal clutch in which roller elements 19 acting under centrifugal force move a cam 18 rotatably mounted on a transfer plate 16 which moves a pressure-plate 15 through springs 17 to engage a friction disc 13 on a driven shaft 14, is disengaged by an electromagnet 24 which frees a friction clutch 23, driving the support 20 of the elements 19, and acts as a brake on the support. To prevent the engagement of the centrifugal clutch at engine idling speeds springs 31 between the pressure plate and a member 30 carried by the clutch cover 12. These springs always oppose the engagement of the clutch and thus provide for adjustment of the characteristics of the clutch. To prevent the clutch from engaging when the engine is started and run under fast-idle conditions, a depression chamber 25 of the starting system is connected to an annular chamber 27 having a plunger 28 which co-operates with the member 30. A depression in the chamber 25 moves the plunger 28 to the right, to move member 30 and increase the loading of the springs 31, thus changing the characteristics of the clutch. In a second embodiment (not shown), the centrifugal weights act directly on the pressure-plate and clutch release when running is through a sliding thrust race and levers. A second thrust member acts through a second set of levers to modify the disengaging force of a series of springs between the pressureplate and the clutch cover.
Patent GB-1383028-A (GB)
Title: Electric motor drive systems
IPC: H02P5/69
Filed: 1972-06-02
Abstract: 1383028 Automatic torque control ALLMANNA SVENSKA ELEKTRISKA AB 2 June 1972 [3 June 1971] 25836/72 Heading G3R In a system having a main shaft driven by at least one main motor, and an auxiliary shaft driven by at least one auxiliary motor, the torque on a shaft connecting the main and auxiliary shafts is measured and used to automatically control the auxiliary motor thus regulating the torque to a predetermined value. In the embodiment, three phase A.C. commutator motors M 1 -M 4 , fed from supply 12 through controllers S 1 -S 4 , drive a folder F 1  and printing machines U 1 -U 3  via main shaft 13, connected by shaft 18 to auxiliary shaft 15, also driven from supply 12 by auxiliary shunt-wound D.C. motors M 1  1 -M 13  through thyristor converters 22-24. A "coarse" torque control signal is calculated from the power supplied to the main motors M 1 -M 4 , the speed of shaft 13 as measured by tachogenerator 14, and the number of motors to control the torque on shaft 15, in a feedforward manner. In a rectroactive torque control loop, a "fine" torque control signal is calculated by operational amplifier 20 having a PI or PID characteristic, from the torque on shaft 18 as measured by transducer 19, and is fed to a proportional regulator 28, that has a signal limiter, to provide a reference to converter current regulator 29 and regulate the torque in shaft 18 to zero. An inner speed regulating loop uses a signal proportional to the speed difference of shafts 13, 15, as measured by tachogenerators 14, 16 and calculated by regulator 21, to form a further signal to regulator 28 and maintain shafts 13, 15 at the same speed.
Patent GB-652233-A (GB)
Title: Improvements in or relating to frequency meters
IPC: G01R23/02
Filed: 1946-08-29
Abstract: 652,233. Frequency measurements. IGRANIC ELECTRIC CO., Ltd. Aug. 29, 1946, No. 25958. Convention date, Aug. 29, 1945. [Class 37] A condenser is charged and discharged at a frequency to be measured by means of a multivibrator comprising gas-filled valves, the impedance of which remains constant during the conduction period and is substantially infinite during the non-conducting period regardless of the corresponding grid potentials; a constant voltage which is a function of the impedance of the valves is thereby impressed on the condenser during its charging and discharging periods. The system shown is employed to measure the speed of a shaft, to which is attached a four-pole permanent magnet rotor 8a which induces an alternating voltage in a stationary coil 8b. This is connected through a switch 18 to the primary winding 17a of a transformer 17, the secondary winding 17b of which is connected to the control grids of two gas-filled valves 9, 10. The anodes are connected through resistances 11, 12 to a positive D.C. supply 3 of 240 volts. The cathodes and suppressor grids are connected to a positive D.C. supply 2 of 90 volts. A gas discharge tube 7 maintains the voltage constant between the leads 2, 3, and a gas discharge tube 6 maintains the voltage constant between the lead 2 and an earthed lead 1. The control grids 9d, 10d are biassed from a variable tapping on a resistor 29 so as to be normally non- conducting. An alternating voltage from the secondary winding 17b renders the valves 9, 10 conducting alternately and thereby a condenser 20 is alternately charged and discharged through a resistance 21. The junction between the condenser 20 and resistance 21 is connected through a resistance 27 to the control grid of a pentode 25, which is thus rendered alternately conducting and non-conducting. The energy supplied during each pulse through the valve 25 is constant, and successive pulses are integrated by an instrument 30 so that its deflection is proportional to the number of pulses in unit time. A switch 31 enables two resistances 32, 33 to be interchanged so that one is in series with the instrument 30 and the other in parallel with the resistor 26. The calibration of the instrument 30 may thus be varied while maintaining the current shunted round the resistor 26 constant. The filaments of the valves 9, 10, 25 are heated by A.C. of known frequency supplied by a transformer 28. The instrument may be calibrated by moving the switch 18 on to its upper contact so that current from the transformer 28 is impressed on the winding 17a and noting the deflection for the known frequency. Voltage fluctuations are compensated for by means of a resistor 13, a fraction of the voltage drop across which is impressed through the voltage divider 23 upon the cathode 25a so as to vary the grid bias.
Patent GB-632841-A (GB)
Title: An improvement in or relating to bains-marie
IPC: A47J27/18
Filed: 1947-09-26
Abstract: 632,841. Plate warmers. BANKS, C. Sept. 26, 1947, No. 26108. [Class 28(i)] Plate warming baskets f, or shelves, are included in the structure of a bain marie a along with its food warming receptacles b so that the plates are heated either by the waste gases of the burner e or by the hot water of the bain marie. The baskets f are provided with lids f<SP>1</SP>. The structure may be enclosed within sliding doors forming a cabinet. Specifications 174,928, [Class 39(iii)], and 185,207, [Class 28(i)], are referred to.
Patent GB-487641-A (GB)
Title: Improvements in radio receiving systems
IPC: H03G1/04
Filed: 1937-09-27
Abstract: 487,641. Valve circuits for wireless reception. HAZELTINE CORPORATION. Sept. 27, 1937, No. 26146. Convention date, Oct. 14, 1936. [Class 40 (v)] The coupling between two circuits comprises a valve the reactance of which is varied manually or automatically by variation of its transconductance. As shown, the input tuned circuit 19, 21 of the R.F. amplifier 12 of a radio receiver contains a condenser 20 which is common to the aerial circuit which comprises the aerial 11, condenser 23, the input impedance of auxiliary valve 22, condenser 20 and earth 11a. The anode circuit of valve 22 includes a resistance 25 and the anode-control grid circuit, a condenser 24, the effective input capacity being variable manually, for gain control, by a grid bias potentiometer 31, or by variable grid bias derived from an A.V.C. rectifier 29. The coupling may be that between a., frequencychanging stage and an I.F. amplifier, Fig. 2 (not shown).