baber/WOPTO huggingface dataset:
Patent GB-1436619-A (GB)
Title: Polyvinyl chloride powders
IPC: C08J3/22
Filed: 1973-08-01
Abstract: 1436619 Mixing plasticizers with polyvinyl chloride WACKER-CHEMIE GmbH 1 Aug 1973 [2 Aug 1972] 36540/73 Heading C3P 'A freeflowing plasticized polvyinyl chloride powder containing from 45-60% of plasticizer based on the weight of plasticizer and polymer, is prepared by adding from 40 to 66% of the total plasticizer, the amount being not more than 30% of the total of plastizer and polymer, to polyvinyl chloride in a first step by stirring the polymer at 600 to 800 r.p.m. while gradually adding plasticizer increasing the stirring speed to 1200 to 2000 r.p.m. and heating to a temperature of at least 80 C., reducing the speed to 600 to 80 r.p.m. while the remainder of the plasticizer is added, completing mixing at 1200 to 2000 r.p.m. while heating to a temperature of 110-140 C., and finally cooling the mixture. A pulverulent powder such as paste grade polyvinyl chloride may be added during the final mixing to give a finer product.
Patent GB-431065-A (GB)
Title: Improvements in the shortening of dough
IPC: A21D2/16
Filed: 1933-12-30
Abstract: Dough for use in making cakes, pastry, bread, and similar products is mixed with a shortening-agent consisting of an emulsion having a fatty continuous phase and an aqueous dispersed phase.  Suitable emulsions are prepared by mixing an oil or fat such as a mixture of soya bean oil and lard with an oil-soluble emulsifying agent such as Palsgaard's emulsion oil, then adding an amount of water not less than 1/5 the amount of oil or fat, and emulsifying the mixture.  The water may contain sugar, salt or albumen, and may be replaced by milk.  Reference has been directed by the Comptroller to Specifications 178,885, 187,298, and 187,299, [all in Class 84].ALSO:A shortening-agent for use in making cakes, pastry, and similar products, consists of an emulsion having a fatty continuous phase and an aqueous dispersed phase.  Suitable emulsions are prepared by mixing an oil or fat such as a mixture of soya bean oil and lard with an oil-soluble emulsifying agent such as Palsgaards emulsion oil, then adding an amount of water not less than 1/5 the amount of oil or fat, and emulsifying the mixture. The water may contain sugar, salt, or albumen, and may be replaced by milk. Reference has been directed by the Comptroller to Specifications 178,885, 187,298, and 187,299, [all in Class 84].
Patent GB-1471840-A (GB)
Title: Chair with adjustable backrest frame
IPC: A47C1/035
Filed: 1975-09-05
Abstract: 1471840 Adjustable seats W FEHLBAUM 5 Sept 1975 [6 Sept 1974] 36713/75 Heading A4J A chair has a thigh-supporting frame 5 rigidly connected to a base 1 and integral buttock and back frames 7, 9 pivotally connected to the base, the chair having a seat 8 stretched between the sides of the thigh supporting frame and between the front edge 13 of the thigh supporting frame and the rear edge 14 of the buttock frame 7. A gas spring (16) for adjusting the buttock and back frames about their connection 6 with the base is connected between the buttock frame and the thigh supporting frame.
Patent GB-779187-A (GB)
Title: Improvements in or relating to brushes
Inventor: GUTZWILLER JOSEF
IPC: A46B9/08
Filed: 1955-12-23
Abstract: 779,187. Brushes. BALLOID BASLER CELLULOIDWARENFABRIK, AKT.-GES. THERWIL. Dec. 23,1955, No. 36938/55. Class 19 [Also in Group VI] A brush comprises a back a of synthetic material, a plurality of bristles a<SP>1</SP> integral' with said back, and a perforated sponge b that is pushed over the bristles a<SP>1</SP> to fill the space between the bristles. The tips of the bristles may project from, be level with or be below the free surface of the sponge, which may be either stuck to the back a or to a perforated plate that can be pushed over the bristles and held to said back by a flange.
Patent GB-1145709-A (GB)
Title: Movable wall partition
IPC: E06B3/46
Filed: 1966-09-12
Abstract: 1,145,709. Slidable doors &c. R. H. NEISEWANDER. 12 Sept., 1966 [6 July, 1966], No. 36990/68. Divided out of 1145708. Heading E1J. The description is the same as for the parent Specification 1145708 but the claims are directed generally to slidable doors &c. having the features of the runner or caster assembly and the means for retracting and extending the assembly with respect to the frame and side panels of the door &c.
Patent GB-806591-A (GB)
Title: Improvements in or relating to fuel cells
Inventor: CHAMBERS HUBERT HAROLD
IPC: C22C32/00
Filed: 1955-12-29
Abstract: A porous electrode for a fuel cell is formed of a sintered body of zinc oxide and silver.  Copper may also be included in the body.  In one example an electrode was produced by mixing the 36-50 mesh BS fraction of a dried powder paste of zinc oxide and silver nitrate with 20 per cent by weight of silver, pressing the mixture at 0.3-0.5 p.s.i., heating slowly to 900 DEG C. to decompose the nitrate and sintering at 900 DEG C. for 1 hour.  In another example, zinc oxide powder was presintered at 1000 DEG C. for 2 hours and the mass then broken down and graded.  The fraction -150 mesh BS was mixed with 30 per cent silver-copper alloy powder (containing 10 per cent copper) and pressed at 2-3 t.s.i.  The fraction -36 + 52 mesh BS was then mixed with same proportion of silver-copper alloy and the coarse grained mixture pressed on top of the fine grained layer and the whole sintered at 1000 DEG C. for 1 hour.  In a further example, -150 mesh BS zinc oxide powder was mixed with 25 per cent by weight of -150 mesh BS silver-copper mixture, containing 10 per cent copper, the mixture pressed at 3 t.s.i. and sintered at 1000 DEG C. for 1 hour.  The body so formed was broken up and the fraction -36 + 52 mesh BS was pressed at 1.5 t.s.i. and sintered at 1100 DEG C. for 1/2 hour to form an electrode.  The fraction -150 + 200 mesh BS may be pressed and sintered with the fraction -36 + 52 mesh BS to form a composite electrode.  Specification 806,592 [Group XXXVI] is referred to.ALSO:A porous electrode for a fuel cell is formed of a sintered body of zincoxide and silver.  The body should contain at least 1 per cent., preferably 20-50 per cent. of silver and may contain some copper.  The electrode may be formed of a coarse grained layer sintered on to a fine grained layer and the fine grained layer may extend completely around the coarse grained layer.  Specification 806,592 [Group XXXVI] is referred to.
Patent GB-1011529-A (GB)
Title: Acoustic horns
IPC: G10K11/02
Filed: 1962-10-02
Abstract: 1,011,529. Horns. S. KOJIMA. Oct. 2, 1962 [Oct. 6, 1961], No. 37219/62. Heading H4X. An exponential horn 1 (Fig. 1) (which term includes a hyperbolic horn) has, adjacent its mouth, openings in its wall and acoustic resistance material 3 covering the openings. The acoustic resistance material may be silk cloth or wire gauge.
Patent GB-366653-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q1/20
Filed: 1930-12-11
Abstract: 366,653. Automatic exchange systems. SIEMENS BROS. & CO., Ltd, Caxton House, Tothill Street, and TYACK, F. G., 21, King William Street, Greenwich, both in London. Dec. 11, 1930, No. 37413. [Class 40 (iv).] One switch of a group having access to the same set of multipled outlets is used to interact with any of the others for the purpose of stepping the switches over idle terminals. The invention is particularly applicable to the routine testing of a group of switches for checking the stepping action, all outlets busy signal, and overflow metering. The Figure shows the controlling switch of a group of bi-directional selectors. This switch is the first one seized by the routine tester which loops the speaking wires to operate A, B, C(i) ; C short-circuits its winding (iii). The tester transmits impulses to vertical magnet V and when C relapses at the end of the train, rotary magnet R receives an impulse and steps the switch on to its first terminals which are idle. H pulls up and switches through and A, B fall back. After the vertical stepping had been completed, the routine tester connected a low resistance relay ST to the incoming c wire so that H now holds in series with ST which remains inert. The tester remains connected to the control switch but now seizes the first switch to be tested which is stepped up and on to first terminals as described above, and finds low resistance ground over ST on the test multiple which operates C(i) to disconnect its rotary magnet. ST operates in this circuit and completes a circuit for rotary magnet R of the controlling switch which takes a step and releases the C relay of the controlled switch whereupon this switch takes a step and the interaction continues until both switches reach last contacts. Eleventh step springs sl disconnect ST from the test multiple and ground the test wiper to operate an overflow meter, s2 remove the short-circuit about C(iii), and s3 connect up busy tone lead BS. Relay H in the tested switch pulls up and releases A. During tone periods, A in the tested switch pulls up over the switch wipers and the loop in the tester, and during battery periods C(iii) operates so that battery over A(ii) is connected to both speaking wires to give lamp flash, B being held by C during the relapses of A so that H.is held. When the loop is opened A, B, H fall back and the switch releases.
Patent GB-338751-A (GB)
Title: Improvements in connection with laces
IPC: A43C1/00
Filed: 1929-12-06
Abstract: 338,751. Maximilian, K. Dec. 6, 1929. Laces. - A lace particularly for boots has a thickened metallic extension at one end so that this end cannot pass through the eyelet holes of the boot. The extension consists of a metal strip 5 bent double to form a clip. A tooth 2 is cut from the base plate 1 and bent up to pierce the lace 3 and to pass through the hole 4 in the top plate. It is then bent down on to the top plate. A raised annular ring 6 is pressed from the top plate to protect the wearer's stocking from the tooth 2. The strip 5 may either be bent endwise or sidewise as shown and may have a straight or slotted end. The base plate may also have an extension 8 which is bent over to grip the top plate.
Patent GB-523164-A (GB)
Title: Improved method of and means for forming or dressing the operative surface of grinding wheels
IPC: B24B53/04
Filed: 1938-12-23
Abstract: 523,164. Trueing grinding-wheels. COVENTRY GAUGE & TOOL CO., Ltd., HARLEY, S. J., and WAINWRIGHT, J. E. Dec. 23, 1938, No. 37536. [Class 60] Grinding-wheels, particularly those for screw threads, are dressed to form by a device in which the movement of the dressing tools is obtained by a combination of polar and rectilinear motions and one or more inclined surfaces. The tools c are carried by a two-armed member having a sleeve d pivoted and sliding on a bar g mounted in lugs h in a bar e adjustably secured at f to the grinding machine table or frame. Pivotal movement of the tools away from the wheel is limited by a stop k and abutment j, and this is first set in correct relation to the periphery of the wheel. Gauge blocks corresponding to the depth of thread are then placed on locating surfaces beneath screws i which are adjusted into contact and the blocks are removed. The arms d<SP>1</SP>, d<SP>2</SP> measured to the tools and the screws i respectively are either equal or are in some simple ratio to facilitate this adjustment. Lateral movement of the sleeve is controlled by abutments l, one corresponding to each tool and co-operating with the inclined block m pivoted at n swinging between adjustable stops o, and provided with a screw clamp q. As the arm rocks the interaction of the abutments l and the block m produces a simultaneous lateral movement. In a modification the pivot n is below' the line of the abutments l and the block swings over against the proper stop o automatically, the clamping screw being dispensed with. A single tool and abutment can be used for dressing both sides of the wheel, the tool being swung through'an angle of 180 degrees.
Patent GB-376382-A (GB)
Abstract: 376,382. Automatic regulation. ARMSTRONG, WHITWORTH, & CO. (ENGINEERS), Ltd., SIR W. G., 22, Great Smith Street, London, and BECKETT, C. M., 55, Wordsworth Drive, Cheam, Surrey. April 14, 1931, No. 11021. [Class 38 (iv).] Relates to an electrically controlled ratchet operated generator field rheostat and comprises means connected to the governor of the prime mover driving the generator for controlling the ratchet drive so that if the prime mover is overloaded the rheostat arm is moved to decrease the generator voltage and if the load falls the voltage is increased. The rheostat arm 3, Fig. 1, has mounted on it a ratchet wheel and pivoted about the same axis is an arm 4 which is rocked continuously by means of a cam 5 driven bv a motor 6. Mounted on this arm is a double ended pawl 7 having a tongue 9a which projects between the poles of two solenoids 11, 12. Energization of solenoid 11 causes the pawl to move so that its end 7<2> engages the ratchet wheel and moves it anticlockwise while energization of 12 will cause clockwise movement. In a modification each solenoid acts on a separate pawl. For each desired position of the governor g corresponding to the various speeds and loads at which it is desired to run the prime-mover, a set of contacts is arranged on the governor gear and connected to the solenoids so that if overload occurs one solenoid is energized to reduce voltage and if the load falls the other solenoid is energized to increase voltage. Independent switch-gear is provided to enable the operator to select the set of governor contacts corresponding to the speed at which he desires the prime-mover to run. Fig. 4 shows a fluid actuated arrangement for controlling the energization of the solenoids. A contact 34 is caused to engage with either contact 35 or 36, by means of a valve 23 attached to the governor spindle which allows oil to flow either to one side or the other of a movable diaphragm 32 to which the contact 34 is attached.
Patent GB-1489540-A (GB)
Title: Pumping apparatus
IPC: F04B15/02
Filed: 1976-09-10
Abstract: 1489540 Pipe joints J I CASE CO 10 Sept 1976 [15 Sept 1975] 37641/76 Addition to 1461529 Heading F2G [Also in Division F1] The concrete pump of the parent Specification (see Division F1) is modified by fixing the delivery conduit 660 to the hopper 16 by a bracket 662 and rotatably mounting the delivery end of the oscillating, tubular valve 130 in a bearing assembly 654 supported by the hopper. A sleeve 652 secured to valve 130 is supported by a plain bearing 688 and a thrust bearing 692, seals 684 and 676 being provided.
Patent GB-1436794-A (GB)
Title: Adducts of polyglycidyl compounds and dialkoxyphosphonomethylp derivatives of cyclic ureides
IPC: C08K5/53
Filed: 1973-08-09
Abstract: 1436794 Adducts containing epoxy groups CIBA-GEIGY AG 9 Aug 1973 [10 Aug 1972] 37805/73 Heading C3B [Also in Division C2] Adducts are prepared by reacting compounds of Formula I with polyglycidyl compounds (II) in which Z denotes a nitrogen-free divalent radical required to complete a 5- or 6- membered ring, R 1  and R 2  are optionally substituted alkyl or alkenyl groups or together form a C 2 -C 5  alkylene group. The ratios of I and II are chosen so that the product contains free epoxy groups. Examples of I are dimethoxyphosphonomethyl - 5,5 - dimethylhydantoin, diethoxyphosphonomethyl - 5,5 - dimethylhydantoin and di - n - butoxyphosphonomethyl - 5,5 - pentamethylenehydantoin, the preparation of these compounds being described (see Division C2). II may be triglycidyl isocyanurate, a diglycidyl ether of bisphenol A, diglyidyl and triglycidyl hydantoin compounds or cycloaliphatic polyepoxide, the word "glycidyl" being defined to embrace epoxycyclohexyl compounds. The adducts may be cured by conventional epoxy resin curing agents to yield flame retardant products.
Patent GB-873532-A (GB)
Title: Wheel rim for pneumatic tyred wheel
IPC: B60B25/04
Filed: 1959-11-09
Abstract: 873,532. Wheel rims. SANKEY-BENSON WHEELS PTY. Ltd. Nov. 9, 1959 [Nov. 18, 1958], No. 37855/59. Class 144 (2). In a divisible wheel rim comprising a cylindrical rim base 8 of uniform thickness and rolled from metal plate to provide a circumferential gutter 6 at one edge to receive a split locking ring 16 serving to retain a detachable endless skirted tyre bead retaining flange 12, the gutter edge of the rim base terminates in a radially inwardly directed flange 7 defining a radially inwardly facing channel in which a reinforcing hoop ring 9 is welded. As shown, the locking-ring 16 is of crescent section to engage snugly in the gutter 6 and against the rounded junction of the flange 12 with its skirt 14. The edge of the rim base opposite the gutter 6 may have a radially outwardly extending stop flange 5 to which is welded a skirted bead-retaining flange ring 11 identical in form with the flange ring 12. Alternatively, the rim base edge may be formed as an integral flange 22, Fig. 2, which is reinforced by a hoop ring 23 as shown, or by an angle-section ring. Stiffening grooves 10 may be formed in the rim base. For use with a tubular tyre, circumferential channels 15 may be machined in the inner periphery of the skirt 14 (17) of the or each flange ring 12 (11), the channels being filled with a plastic sealing compound via nipples 21 in the rim base.
Patent GB-871812-A (GB)
Title: Slug cutters for printing
IPC: B41B11/72
Filed: 1958-11-26
Abstract: 871,812. Printing surfaces. FOSTER, H. T. Nov. 25, 1959 [Nov. 26, 1958], No. 38125/58. Class 100(2). A slug cutter table comprises a platform having means for securing type slugs on the upper surface of the platform adjacent one edge, the platform being mounted for rocking movement about an axis displaced from the plane of the platform and normal to said edge adjacent to which the slugs are secured. Slugs 40 are placed on a platform 20, resting against an arm 43 so as to project slightly over the edge 26, and clamped against an abutment 41 by rotating a nut 33 engaging a screw 31 secured to a clamp 30. The nut can be released by rocking through 10 degrees to allow rapid movement of the clamp. The arm 43 is connected to a slide 44 which co-operates with a graduated scale 46 on the abutment 41. A nut secured to a lever 53 engages partly round a screw 50, and by rotating a knob 54 the arm 43 is moved. By retracting the lever 53, the arm can be moved rapidly. It can be locked in position by a lever 57 carrying a block which can be forced into a recess in the abutment 41. The platform 20 is then manually rocked about its pivot 22 so that the slugs pass across a circular saw 14, on the front face of which are three angularly spaced axially projecting trimming tools, the saw first cutting the slug edges to size prior to accurate trimming.
Patent GB-338030-A (GB)
Title: Improvements in welded butt joints
IPC: B23K5/00
Filed: 1929-12-12
Abstract: 338,030. Collinson, J., and Associated Electrical Industries, Ltd. Dec. 12, 1929. Welded joints.-A welded butt-joint is made by applying to the members to be joined a cover plate which is divided into two parts in line with the weld, and then welding between the members and the inner edges of the cover plate, and also round the outer edges of the cover plate. In Fig. 1, 5 shows the weld between the plates 1, 2 and inner edges of the divided cover plate 3, 4 and 6 shows the weld round the outer edges of the cover plate. The cover plates may consist of a series of short pieces 3, 4, Fig. 4, on one surface of the plates 1, 2 and a corresponding staggered series of pieces 3a, 4a on the other surface of the plates.
Patent GB-1512215-A (GB)
Title: Method and circuit for detecting and compensating for dropout and distortion of frequency modulated broad band signals
IPC: H04N5/94
Filed: 1975-09-18
Abstract: 1512215 Television BASF AG 18 Sept 1975 [19 Sept 1974] 38324/75 Heading H4F A circuit for detecting both signal drop-out and distortion in a frequency modulated signal, comprises a high speed positive feedback voltage comparator 1 for detecting and indicating when the voltage level of said FM signal passes from positive to a threshold negative level and when said voltage level passes from negative to a threshold positive level, said negative and positive threshold levels being of the same magnitude, a pair of one-shots 2, 3 for indicating when the time period between said indications of threshold voltage level attainments exceeds a predetermined length, a demodulator 9 to demodulate said FM signal, and a compensating signal generator 6 to generate a fill-in signal to replace that portion of the demodulated signal corresponding to the portion of the FM signal which resulted in the indication of excessive time lapse between said threshold level attainments. The signal passes through a delay line 7 prior to passing through an FM signal limiter 8 and the demodulator 9 so as to allow the detector enough time to react and to synchronize the insertion of the compensating signal just prior to the time when the defective signal would otherwise have appeared on the screen. In an alternative embodiment, a dual output high speed positive feedback voltage comparator (10), Fig. 2 (not shown), is used, one output being the inverse of the other. The outputs of comparator (10) are coupled to the inputs of logic gate (13) through short duration pulse generators consisting of capacitors (11), (12) grounded through respective resistors (14), (15). The logic gate provides short duration signals each time the respective outputs of the voltage comparator go positive. The output of the logic gate is connected to a retriggerable one-shot (16) whereby the compensating signal generator is activated when the time period between said threshold level attainments exceeds said predetermined time length. The circuit is especially for use in a magnetic video tape recorder/playback apparatus when a grey level video signal is used as the fill-in signal. Alternatively, the fill-in signal may be a repetition of the signal for a previous line.
Patent GB-970370-A (GB)
Title: Alternating current bridge circuit
IPC: G01R17/10
Filed: 1961-10-26
Abstract: 970,370. Bridge measurements. BAUSCH & LOMB Inc. Oct. 26, 1961 [Feb. 21, 1961], No. 38333/61. Heading G1U. An A.C. bridge measuring the change in output e o  produced by variations of a thermistor or other impedance 22, Fig. 1, comprises series aiding diodes 18, 20 and resistors 10, 12 connected across the A.C. supply at 14, 16 and an integrating capacitor C (and preferably a resistor 30) network across the measuring diagonal, so that e o  will be a D.C. varying with changes in the impedance 22. In a modification Fig. 2 (not shown) the resistances 10, 12 are replaced by the centre tapped secondary of a transformer through which the bridge is energized and in a further modification Fig. 3, the diodes 18, 20 are replaced by triodes 50, 52 and the condition being measured is applied as a voltage e 1  to the grid of triode 50, the impedance 22 of Fig. 1 being dispensed with. A bias voltage derived from a potentiometer 66 may be added to the output e o  when used in a servo system.