baber/WOPTO huggingface dataset:
Patent GB-736277-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B19/00
Filed: 1953-11-30
Abstract: 736,277. Cams. SOC. ANON. A. VIGORELLI. Nov. 30, 1953 [Jan. 28, 1953], No. 33158/53. Class 80 (3). [Also in Group VII] A zig-zag sewing-machine has a plurality of cams, each adapted to produce a different stitching pattern, the needle-vibrating mechanism being connected to a single cam-follower contact element which can be brought into position for actuation by any one of the cams. The cam-actuated means may be positioned for simultaneous engagement with any two adjacent cams, so that it is controlled by whichever of these cams is higher at any instant. The cams are removable as a unit, and are preferably separate so that they may be exchanged for others, or rearranged in the unit to provide for different combinations. Means are provided for variation of the amplitude of needle vibration and for suppressing the vibration, and for lateral adjustment of the mid-position of the needle. In the mechanism shown in Fig. 1, the needle-bar guide 12 is pivoted at 13 and has a pin 30 engaged by a forked lever 28 pivoted at 29; a member 26 connects this lever to a pin 25 slidable in a guide 72, Fig. 6, by means of a camactuated lever 21 pivoted at 23 and connected to the member 26 by a link 24, the cam-follower 20 on the lever 21 being pressed against the cam 16 by a spring attached to the member 26, as shown in Fig. 1. One of the cams 16 is formed by an end flange on a sleeve which is carried non-rotatably on a shaft 17 driven through reduction gearing from the main shaft 15 and is secured by a nut; the remaining cams (five in the machine described) are fitted non-rotatably on the hub of the sleeve and secured by a nut thereon in the form of a disc closing the aperture in the frame through which the cam unit or individual cams may be withdrawn. The cam follower 20 is carried by a cylindrical member 51, Fig. 6, slidable in a transverse guide in the end of the lever 21, and is shifted to engage the required cam, or pair of cams, by a lever 55, Fig. 1, pivotally connected to the member 51 and adjustable by engagement with a helical groove in a finger-rotatable spindle; the spindle is held in the desired position by a spring ballcatch under its finger-knob, which bears indicating marks to show which cam is effective. A push-button 65, Fig. 1, is provided to engage the lever 21 to raise the follower clear of all the cams during its lateral adjustment or for withdrawal of the cams. The inclination of the guide 72 is varied, to adjust the amplitude of vibration of the needle, by a finger-lever 75, with an arm 82 working between adjustable stops 83, and the guide is mounted in a lever 77, pivoted at 86, so that it can be shifted bodily laterally, to alter the position of the mid-point of the needle vibration, by an eccentric pin 88 on the spindle of a finger-lever 90; the pin 88 also shifts a face-plate 79 embracing the spindle of the guide 72 and lever 75 and carrying the stops 83 and graduations for indicating the amplitude for which the guide is set.
Patent GB-506657-A (GB)
Title: Improved carpet holder
IPC: A47G27/06
Filed: 1937-12-01
Abstract: 506,657. Stair-carpet holders. HUNTER & HYLAND, Ltd., and ANDERSON, W. Dec. 1, 1937, No. 33247. [Class 52 (v)] In stair-carpet holders of the type wherein a gripping finger 2 is attached to a fixing bracket 1 by a pivot 10 adapted to subtend the angle formed by tread and riser, a releasable locking means comprises a catch 16 pivoted to the finger at 17 on an axis parallel with the pivot 10 and adapted to be turned by pressure on a finger plate 14 to enter a slot in the fixing bracket and engage a yoke piece 6 forming one side of the slot. The bracket 1 has two wings 4 secured by screws to the tread and riser and is rolled to provide an eye for the pivot 10 which engages bushes 9 in the end of the finger 2. The under part of the tinger comprises two surfaces 12 at right-angles.
Patent GB-521450-A (GB)
Title: Improvements in or relating to corsets and analogous wearing apparel
IPC: A41C1/00
Filed: 1938-11-17
Abstract: 521,450. Corsets, belts &c. RYALL, S. D. Nov. 17, 1938, No. 33397. [Class 141] A corset, belt &c. having a vertical opening therein is provided with means for adjusting the width of the opening, and with a crotch piece secured to the garment, one end of the crotch piece being bifurcated, and the bifurcations being permanently secured to the garment at each side of the opening therein, the other end being detachably secured to the garment. In the form shown, the opening is at the pear of the corset, and is adjustable in width by draw laces 6 which are passed through eyelets 5 and connected to tabs 7 which are secured to tapes 8 adapted to be tied together. The crotch piece 11 has one end detachably secured to the front of the garment, and the other end of the piece 11 is bifurcated. the bifurcations 13, 14 being permanently secured to the garment by tapes 15. The garment may be of linen, rubber, rubber-backed material or other suitablematerial, and may be provided with other openings closable by detachable fasteners to facilitate donning and taking off the garment. In a modification, the draw laces are replaced by elastic laces. Specification 316,902, [Class 141], is referred to.
Patent GB-1527139-A (GB)
Title: Electromagnetic compressors
IPC: H02K1/34
Filed: 1975-09-19
Abstract: 1527139 Reciprocating machines TECUMSEH PRODUCTS CO 19 Sept 1975 [19 Sept 1974] 33397/76 Divided out of 1527137 Heading H2A [Also in Division F1] In a reciprocating gas compressor wherein an armature 40 and a piston 42 are driven in one direction by a magnetic circuit 30 and are returned by a pair of coil springs 110, 112, the coil springs have substantially parallel axes, zero pitch, and linear characteristics, and each has one end fixed relative to the circuit 30 and the other end clamped to a common side of the armature 40.
Patent GB-948243-A (GB)
Title: Shut-off valves for flexible tubing
IPC: F16K7/07
Filed: 1962-08-30
Abstract: 948,243. Valves. VEREINIGTE ARMATUREN-G.m.b.H. Aug. 30, 1962 [Sept. 20, 1961], No. 33398/62. Heading F2V. A fluid actuated flexible sleeve valve comprises a flexible sleeve 105 which closes on an insert 106 in response to fluid pressure supplied through ports 117. A fluid pressure actuator comprises a differential piston 110 having its larger face 111 subjected to pressure of fluid flowing through the valve by passage 159, its smaller face 115 adjoining the space 116 from which the ports 117 lead, the space 116 being filled with liquid and its stepped face 119 being subjected to the pressure in space 120 to which a control fluid is supplied and exhausted through pipe 121 under the control of a three way valve. In a modification, two such annular pistons are provided having their larger faces opening to a common space. The control fluid may be the fluid flowing through the valve or a separate fluid. A rod 132 extends from the larger face to reduce the effective area of this face and to provide an indicator to show the position of the valve. In the event of failure of the control pressure, the valve is moved to the closed position.
Patent GB-810858-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J5/00
Filed: 1956-11-02
Abstract: The invention comprises 2-methylene-11b , 17a  - dihydroxy - 21 - oxy - 4 - pregnene - 3,20-diones represented by the formula: <FORM:0810858/IV (b)/1> wherein R is hydrogen or the acyl radical of a hydrocarbon carboxylic acid containing from 1-12 carbon atoms inclusive and the process for the preparation thereof which comprises condensing aqueous formaldehyde with the alkali - metal enolate of 2 - carbonyl - 21 - oxy-4,17(20)-pregnadien-3-one, represented by the formula: <FORM:0810858/IV (b)/2> wherein R is hydrogen or the acyl radical of an organic carboxylic acid, R1 is hydroxy, R11 is hydrogen, carbo-lower-alkoxy, lower alkoxy, or trifluoromethyl, and where M is an alkalimetal to produce a 2-hydroxymethyl-2-carbonyl steroid, and reacting the thus produced 2 - hydroxymethyl - 2 - carbonyl steroid with an aqueous alkali-metal base to produce a 2-methylene - 21 - oxy - 4,17(20) - pregnadien-3-one represented by the formula: <FORM:0810858/IV (b)/3> wherein R and R1 have the values given hereinbefore, esterifying if desired to produce the corresponding 21-acyloxy compound and then oxidatively hydroxylating the D 17(20)-double bond and if desired hydrolysing the 21-ester group to produce the corresponding 21-hydroxy compound.  The condensation may be effected in a lower alkanol in the temperature range 0-50 DEG  C.  The carbonyl group may be removed from the 2-position by sodium hydroxide or potassium carbonate at a temperature of 0-100 DEG  C.  The oxidative hydroxylation can be performed with osmium tetroxide, hydrogenperoxide, the aryl iodoso acetates and tertiary amine oxide peroxides.  Examples describe the preparation of 2-methylene-11b ,21-dihydroxy-4-17(20) - [cis] - pregnadien - 3 - one, 2 - methylene 11a ,21 - dihydroxy - 4,17(20) - [cis] - pregnadiene-3-one, the corresponding 21-acetoxy compound and 21 esters derived from a lower aliphatic acid, an acyclic acid, a cycloaliphatic acid, and an aryl or alkaryl acid, or an aralkyl acid, 2 - methylene - 11b ,17a  - dihydroxy - 21-acetoxy - 4 - pregnene - 3,20 - dione, 2 - methylene - 11b ,17a ,21 - trihydroxy - 4 - pregnene - 3,20-dione, and 21-esters thereof.  Specifications 749,194, 749,195 are referred to.ALSO:Steroids having the formula <FORM:0810858/VI/1> wherein R is H or the acyl radical of a hydrocarbon carboxylic acid containing 1-12 carbon atoms inclusive, are employed in creams, ointments and lotions for application to the skin and in ophthalmic conditions.  Also there may be added an antibiotic, e.g. neomycin, bacitracin and tetracycline. Specifications 749,194 and 749,195, [both in Group IV (b)], are referred to.
Patent GB-922484-A (GB)
Title: Improvements in package-building mechanism in textile spinning and twisting machines
Inventor: CLAYTON JAMES WILLIAM BARNES
IPC: D01H1/36
Filed: 1959-10-02
Abstract: 922,484. Builder motion. T.M.M. (RESEARCH) Ltd. Jan. 2, 1961 [Oct. 2, 1959], No. 33549/59. Class 120 (2). In builder mechanism for textile spinning &c. machines, the shaft 22 of the builder-motion lever 10 is provided with a cam groove 24 co-operating with a member 25 connected to the lifter mechanism of the ring- rail so that rotation of the shaft, as it is picked round by a ratchet wheel 17, imparts a traversing motion to the member 25 longitudinally of the lever. In this way a nosing-build may be produced, or by rendering the ratchet wheel inoperative, a parallel build.
Patent GB-898945-A (GB)
Title: Improvements in or relating to friction gearing
IPC: F16H13/02
Filed: 1958-10-21
Abstract: 898,945. Friction gearing. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 21, 1958 [Oct. 23, 1957], No. 33605/58. Class 80 (1). [Also in Group XXXVIII] In a disengageable friction reduction drive for a rotatable platform 1, Fig. 1, e.g. in a gramophone or tape recorder, wherein the shaft 3 of an electric motor frictionally engages a large diameter portion of a wheel 5 whose smalldiameter portion engages a friction surface on the platform 1, the intermediate wheel 5 being laterally displaceable to disengage the drive, the shaft 8 of the wheel 5, or a journal thereof, is held by a spring 18 against the end surface of a fixed support 16 positioned to prevent vibration of the wheel 5 in a plane containing the axes of shafts 3 and 8. This plane is arranged parallel to, or at a small angle to, the tangent at the point of contact between wheel 5 and platform 1 so that the support 16 reduces the extent to which motor vibration affects the uniform peripheral speed of the platform 1. As shown the shaft 8 is carried by an arm 9 pivoted at 10 to an arm 11 which is movable about a fixed pivot 12, to engage or disengage the drive. A relay 14 holds the arm 11 in the engaged position against the action of a spring 15. In the disengaged position the shaft 8 seats in a cut 20 in the end of the adjustably fixed support arm 16. In a modification the intermediate wheel is carried by an arm whose pivot lies in the plane containing the axes of shafts 3 and 8 and the spring 18 acts between this pivot and the shaft 8 to prevent vibration of the wheel 5. The motor and friction gearing shown may be used to provide a smooth drive to the take-up reel of a tape recorder having no capstan.
Patent GB-951246-A (GB)
Title: Improvements in or relating to passing solid particles through fluid sealing means
Inventor: CLAYTON CHRISTOPHER GEORGE ALB
IPC: B01J8/00
Filed: 1960-09-30
Abstract: 951,246. Pneumatic conveyers. GAS COUNCIL. Sept. 21, 1961 [Sept. 30, 1960], No. 33615/60. Heading B8A. In a method of passing granular solids &c. through a conduit 11, Fig. 1, between reaction vessels 10, 12, &c. without permitting the passage of substantial quantities of gas, finely divided particles are introduced into the conduit 11 as at 13 to fill the interstices and are separated at the exit. The separating system may comprise an auxiliary stream of gas injected at 15 through a porous screen 16 below the exit end of the conduit 11 and which carries the finely divided solid into a separate outlet 17. Specification 951,247 is referred to.
Patent GB-1061975-A (GB)
Title: Improvements in or relating to composite photography
IPC: G03B15/10
Filed: 1963-08-26
Abstract: 1,061,975. Composite photography; projection screens. L. MENSE. Aug. 26, 1963 [Aug. 27, 1962], No. 33666/63. Headings G2A and G2J. A platform structure 8 for supporting a person or other subject to be photographed, comprises a series of reflective portions 11 arranged in a saw-tooth-like manner, such that when the platform is placed in front of an auto-collimating projection screen 1, the region of the platform supporting the subject can be included in an image projected on to the screen. Camera 4 is placed beside projector 5.
Patent GB-656078-A (GB)
Title: Improvements in electric measuring instruments
Inventor: HAWKES HARRY DONALD
IPC: G01R27/12
Filed: 1948-12-31
Abstract: 656,078. Current and voltage measuring. ELLIOTT BROS. (LONDON), Ltd. Dec. 31, 1948, No. 33689. Addition to 616,325. [Class 37] Variations from a nominal frequency are measured by means of two circuits having resonant frequencies above and below the nominal frequency, the outputs being rectified and applied to a ratiometer comprising two coils 1, 2 secured together for rotation about an axis 3; preferably the gaps between the polepieces 4 and the central core 8 widen from 4a to 4b; the core 8 is preferably slotted to facilitate assembly; a third coil 10, Fig. 3, may be wound round the coils 1, 2 for damping purposes.
Patent GB-176116-A (GB)
Title: Improvements in beds convertible into seats
IPC: A47C17/17
Filed: 1920-11-29
Abstract: 176,116. Kilgour, R. D. Nov. 29, 1920. Bedsteads convertible into seats.-The back 14 of a settee &c. is hinged by means of members 15, 16 to the seat portion 11 and is supported in the vertical position by means of links 28 pivoted to the back 14 and to a box 1 which may contain bedding. The locking means described in Specification 181,302 hold the back 14 rigid in the vertical position when the piece of furniture is in use as a settee. To convert the device into a bed, the seat 11 is pulled up and forward bv means of a handle to open out the hinges 15, 16 and release the locking-means. The seat is made deeper than the back portion and is provided with a hinged flap 12 which folds over on the back to bring the surface level with the seat when the device is extended to form a bed.
Patent GB-837384-A (GB)
Title: Improved thermally insulated cabinet
IPC: F25D23/06
Filed: 1958-10-22
Abstract: A polyurethane foam for thermal insulation is prepared by reacting an ethylene glycol-adipic acid polyester having a negligible water content with toluene diisocyanate to produce an isocyanate modified polyester to which is then added polyoxyethylene sorbitan monopalmitate and a halogenated aliphatic hydrocarbon.  To the above mixture is added a mixture of the polyester, ethylene glycol, dimethyl ethanolamine and polyoxyethylene sorbitan mono-palmitate emulsifier, the resulting heat vaporising the halogenated hydrocarbon so that it acts as blowing agent as the mixture sets.  Proportions are specified in the Specification.
Patent GB-521472-A (GB)
Title: Improvements in terrestrial and celestial globes or charts
IPC: G09B27/08
Filed: 1938-11-21
Abstract: 521,472. Globes. THORPE, P. H., ASHBY, A. S., and GEOGRAPHIA, Ltd. Nov. 21, 1938, No. 33804. [Class 146 (ii)] A spherical rotatable terrestrial and celestial globe or chart 1 is illuminated interiorly by a central lamp 3 with a holder 5 in a flexible mount 6 so that the lamp may be deflected when placing the sphere over the lamp. The mount 6 is secured to a hollow spigot 7 threaded atÀ14 into the C-frame 2 and secured by a lock-nut 15. The globe 1 is seated in a plate 9 having a boss 10 fitting an aperture 8 in the globe, members 9, 10 being passed over spigot 7 and resting on a cork or rubber disc 19. The globe is secured by a pin 11 threaded at 12 into the frame 2 and engaging a ferrule 13 set in the globe.
Patent GB-379931-A (GB)
Title: Black pudding filler
IPC: A23G3/02
Filed: 1931-12-07
Abstract: 379,931. Blackpuddings. GRIFFITHS, G., Holly Bank, Station Road, Great Saughall, near Chester. Dec. 7, 1931, No. 33825. [Class 28 (ii).] A device for filling blackpuddings comprises a funnel having a guide portion A, riveted to its upper part, which is slidable on a post attached to the vessel containing the blackpudding mixture, the funnel being secured at a suitable height by a clamping screw B. One end or the skin is held between the tapered nozzle of the funnel, and a removable member C which is held in position by a clip D, the member C being rotated to engage the lug G under the clip. The material is forced into the skin by a plunger H on a hand-operated rod M slidable in a sleeve K mounted on a stay S secured to the rim of the funnel.
Patent GB-1159433-A (GB)
Title: Improvements in or relating to a Safety System for Overriding an Operating Mechanism
Inventor: DAVENPORT ANDREW
IPC: F16K31/12
Filed: 1965-08-06
Abstract: 1,159,433. Fluid-pressure servomotor systems. WOLSTENHOLMES (RADCLIFFE) Ltd. Sept. 30, 1966 [Aug. 6, 1965], No.33827/65. Heading G3P. A butterfly valve 10 is normally controlled by an electric motor 6 or a hand wheel 7 through a clutch 11 but is moved to a "fail safe" or closed position in the event of an emergency electrical signal. When the valve is open the electric system is set so that a fluid supply 16 passes through the valve 14 to an actuator 13; which holds the valve 10 open and acts on a device 17 which disengages the clutch 11. When the emergency signal is received, a solenoid of valve 14 is actuated which causes the actuator 13 to close the valve 10 after which the motor 6 is energized to adjust one element of the clutch 11 until the two parts of the clutch are aligned. When the valve is to be opened or closed under normal conditions, the circuit closes valve 15 which allows the clutch 11 to engage.
Patent GB-1504676-A (GB)
Title: Electrolyte - retaining matrix for fuel cells
IPC: H01M8/02
Filed: 1976-08-16
Abstract: 1504676 Fuel cell with silicon carbide matrix UNITED TECHNOLOGIES CORP 16 Aug 1976 [2 Sept 1975] 34017/76 Heading H1B A fuel cell comprising a pair of spaced apart gas diffusion electrodes, a porous electrolyte retaining matrix between the electrodes and phosphonic acid electrolyte disposed within the matrix wherein the matrix comprises at least 90% silicon carbide and up to 10% binder (e.g. P.T.F.E. or F.E.P.). The silicon carbide matrix may be in the form of fibres or particles of up to 25 Á size and may be formed by spray coating both electrodes or applying a single layer to one electrode. The electrodes may comprise Platinum Block catalyst on P.T.F.E. impregnated carbon paper and the cell may use air or oxygen as the oxidant and hydrogen or reformed natural gas as the fuel.
Patent GB-1345274-A (GB)
Title: Circuit arrangement for generating a phase-shiftable voltage
IPC: H03H7/20
Filed: 1971-07-20
Abstract: 1345274 Phase shifting BRUKER PHYSIK AG 20 July 1971 [30 July 1970] 34044/71 Heading H2F [Also in Division H3] A phase shifting circuit comprises a device 5, Fig. 1, for generating from a reference voltage U B  at least 3 auxiliary voltages having a certain, constant phase relationship, a resistor 14 having taps 15-18 to which these voltages are fed as shown, the resistance between each tap being proportional to the phase relationship of the applied voltages, the resistor having a wiper 19 connected to an output 20, 21 from which a voltage having any fixed phase relationship with U B  may be obtained. The device 5 is adapted to provide V auxiliary voltages in quadrature substantially independent of the frequency of the input voltage. As shown, Fig. 2, the input 2, 4 is taken to two potential dividers 24, 25 in parallel each comprising resistances 26, 27 and variable reactances 28, 29, preferably capacitance diodes or controllable inductors, the resistive component 26 of divider 24 and the reactive component 29 of divider 25 being connected to the input 2. The outputs of the dividers are tapped at 30, 31 and used as inputs to buffer amplifiers 34, 35 having outputs 36, 37 taken to primaries 42, 43 of output transformers 40, 41. In operation at a particular frequency, the resistive and reactive components of both dividers are adjusted for equality such that the phases of the voltages at 30, 31 are 45‹ with respect to U B  and 90‹ with respect to each other. The secondaries 44, 45 of transformers 40, 41 are centre-tapped to earth and 4 voltages in quadrature may be tapped at points 6, 7, 8, 9. In the event of the frequency of U B  changing the reactive components will also change and the phase and magnitude of the voltages at 30, 31 will change in opposite directions. The outputs of amplifiers 34, 35 are taken via diodes 48, 49 and resistances 50, 51 as input to an automatic gain controlled amplifier 52 which thus is operated by the difference in voltage at 36, 37. The output 53 is proportional to this difference and is fed-back to alter the capacitance or inductance of both reactances causing change in the voltages at 30, 31 again in the opposite directions until near equality is reached, the reactive and resistive components again being equal to restore phase quadrature at points 6-9 despite the change in frequency.
Patent GB-737254-A (GB)
Title: Improvements relating to anti-skid devices for the wheels of vehicles
Inventor: WOODS EDGAR CHARLES
IPC: B60C27/02
Filed: 1953-12-08
Abstract: 737,254. Wheel tyres. JOHN BULL RUBBER CO., Ltd. March 9, 1954 [Dec. 8, 1953], No. 34073/53. Class 144 (2). An anti-skid device for vehicle wheels comprising a flexible rubber tread member 10 retained in position across a wheel tyre has at least one horizontal slot 12 presenting a plurality of wall edges and the walls of the or each slot 12 are connected with each other by one or more strengthening bars 14, preferably of less thickness than the rubber tread member 10. The bars 14 may form a cruciform tie between two opposing slot walls. The tread is formed with raised ribs 20 along each portion bordering a slot 12 and the ribs may be stiffened by webs 21. The outer ribs 19 may be of greater width than the other ribs 20. The retaining means comprises rubber covered strap parts 11a, 11b, each attached at one end to its respective end of the tread member 10 by moulding during moulding of the member 10. To this end these strap parts are provided with tubular metal eyelets 23 for location in the mould, thus forming apertures. The under surface of the member 10 and bars 14 is formed with small projections to engage the tread patterns of the tyre for additional security against slip between the tyre and the member 10.