baber/WOPTO huggingface dataset:
Patent GB-1307798-A (GB)
Title: Process for the erection of structures preferably masonry form  structural elements and structural elements for the performance  thereof
IPC: E04B2/04
Filed: 1971-04-19
Abstract: 1307798 Brick walls WIENERBERGER ZIEGELFABRIKS - UND - BAUGESELLSCHAFT 19 April 1971 [27 March 1970] 25211/ 71 Headings E1B and E1S Masonry walls are built up from apertured blocks with bearing surfaces formed level with tolerances of 0-5% of the diagonal dimension by dipping the bearing faces in a viscous binder comprising sand, hydraulic binder and highly dispersed plastics and cellulose additives to give the required viscosity of at least 8‹ Engler and setting retardation. The binder may include fly ash or slag flour, cement, polyvinyl acetate polyacrylates, and methyl cellulose. The blocks may be fed to the bricklayer along a conveyor which passes through a tank of the binder. The tank has an adjustable grating limiting the immersion of the block. The block may have gripping recesses to facilitate handling by the bricklayer.
Patent GB-520777-A (GB)
Title: Improvements relating to signs and particularly automobile index plates
IPC: F16B5/02
Filed: 1938-08-27
Abstract: 520,777. Signs. BELL, R. Aug. 27, 1938, No. 25247. [Class 3 (ii)] Signs are built up with characters which may be of rubber or rubber composition, provided with integral studs for mounting in holes in a base plate, the studs being associated with locking means coacting with the back of the plate. Fig. 3 shows the character 1 with stud 2 engaging base plate 6 and secured by a member 12 grooved to engage a spring washer 9 in the character. In one modification the stud and base plate are recessed to accommodate a rubber washer, and in another the stud is engaged by a screw whose head bears against the base plate. Reference has been directed by the Comptroller to Specifications 185,257, and 225,126, [both in Class 3 (ii)].
Patent GB-518727-A (GB)
Title: Improvements in or relating to interlocking sheet metal piling
IPC: E02D5/14
Filed: 1938-08-29
Abstract: 518,727. Sheet piling. HAY, H. H. DALRYMPLE-. Aug. 29, 1938, No. 25311. [Class 68 (ii)] Interlocking sheet metal piling sections .1 are each bent at their ends out of the plane of the sheet, each portion terminating in a hollow part, one part forming a male claw-shaped member 2 and the other a female claw-shaped member. 3. The male member is -closed at the lower end by, a pointed shoe. A liner tube 5 with a key 6 is temporarily inserted when driving. The joint is rendered waterproof by a bitumen compound or by grouting forced'in under pressure when the liner tube 5 is gradually withdrawn.
Patent GB-866315-A (GB)
Title: Vehicle suspension
Inventor: SADLER FRANCIS ANTONY DAWSON
IPC: B60G17/005
Filed: 1958-08-07
Abstract: 866,315. Lifting weight off springs; pneumatic or hydropneumatic suspensions. GIRLING Ltd. Nov. 9, 1959 [Aug. 7, 1958], No. 25311/58. Class 108(2). A vehicle with a pneumatic or hydropneumatic suspension system, has a strut 26 (Fig. 5) which can be locked in position to prevent the vehicle from sinking on its suspension when stationary. During travel of the vehicle an electric motor 10 drives a compressor 11 which delivers air to a reservoir 13 from which air is supplied through a levelling valve 14 to a suspension unit. A pipe line 19 leads from the reservoir 13 to a pressure-operated spring- loaded switch 16, in series with the motor and the ignition switch 22, and also to a pressureoperated spring-loaded switch 21 in series with the ignition switch 22 and controlling the energization of a solenoid 23. This solenoid is adapted to withdraw a spring-loaded pawl 24 which, when the solenoid is de-energized i.e. when the ignition switch is opened holds the pawl in engagement with ratchet teeth 25 on a strut 26. If the pressure in the reservoir 13 and hence in the suspension unit falls while the vehicle is stationary, the switch 16 closes and the switch 21 opens so that when the ignition switch is closed the motor 10 is energized to restore the pressure in the system. The solenoid 23 is not energized until the pressure has returned to normal. In modifications (not shown), the means for controlling the pawl 24 may be a spring and piston and cylinder device, or two solenoid operated pawls may be provided co-operating with oppositely directed ratchet teeth on the strut 26. In a further modification (not shown) two solenoid operated pawls are provided, one of which holds the strut in the highest position to which it is moved during travel of the vehicle. The strut may be replaced by a quadrant having ratchet teeth.
Patent GB-1247415-A (GB)
Title: Direct-acid milk products
IPC: A23C9/123
Filed: 1969-05-19
Abstract: 1,247,415. Cheese curd, buttermilk. BATTELLE DEVELOPMENT CORP. 19 May, 1969 [6 June, 1968], No. 25325/69. Heading A2B.  Milk is cooled to 32-50‹F., mixed with sufficient edible acid to lower the pH of the milk, measured at 70‹F, to 4.40-5.20 while maintaining the milk at 32-50‹F, and then warming the milk to 60-80‹F and setting by mixing proteolytic enzymes therewith in quantities equivalent in casein coagulation activity to 3-100 cc/1000lbs milk of Hausins single strength rennet, so as to effect the formation of curd and whey. The enzyme may be added either before or after warming. The so obtained curds may be cut into cubes, mixed with edible acid to bring the pH to 4.30-4.90, cooked at 100-150‹F, separated from the whey, and washed to give as product a cottage cheese curd. The enzyme may be rennin, pepsin, papain, or ficin. Alternativey, the minimum pH may be 4.65-4.70, employing an organic acid, to obtain buttermilk as product.
Patent GB-1443670-A (GB)
Title: Power transmission belt having attached vegetation engaging elements and method
IPC: A01D57/00
Filed: 1974-06-07
Abstract: 1443670 Endless belt cutters GATES RUBBER CO 7 June 1974 [8 June 1973] 25382/74 Heading A1F [Also in Division B8] Conveyor or vegetation-cutting elements 66 are secured to an endless carrier belt 26 by means of a fastening which engages a preformed recess 50 on the side of the belt opposite to that of the element 66, and in such a way that the material of the belt in the locality of the element is put under compression. In Fig. 3, a pin 48 is placed through an aperture in a shank portion 44 of the element 66. The shape of the recess 50 permits a degree of rooking of the element 66 when it engages hard obstacles, and also permits the aperture to close up without distortion of the belt as the latter passes around an end pulley (Fig. 6 not shown). In Fig. 7, a spring steel retaining clip has end edges which engage serrations 70 in the shank 44. In Figs. 8 and 8a, compression is applied to the belt as cam-like members 74 are turned into a fastening position. In another arrangement (Figs 9, 9a, not shown), a nut and bolt fastening is used. In Fig. 10, split portions 86, 86 formed on the shank, are cammed through a slot in a retaining plate 88, and spring outwardly (full-lines) into a retaining position. In an arrangement similar to Fig. 3 (Figs. 11, 11a, not shown), the retaining pin is of oval cross-section, and is turned through 90 to apply compression to the belt material. The recess 50 may be pre-moulded by using a shaped insert (100) (Figs. 15, 15a, not shown), which is removed after the belt is moulded. The conveying or cutting element 40 may be moulded around a stem carried by the shank 44.
Patent GB-638383-A (GB)
Title: Carpet sweeper mechanism
IPC: A47L11/33
Filed: 1947-09-17
Abstract: 638,383. Carpet sweepers. WHITE AIRCRAFT CORPORATION. Sept. 17, 1947, No. 25411. Convention date, May 4, 1946. [Class 138 (i)] [Also in Group XXIV] In a carpet sweeper of the type having a traction wheel adapted to be rotated in alternately opposite directions by the back-andforth movement of the sweeper over a surface so as to cause a brush carried by the sweeper always to rotate in the same direction, a drive gear is fixed to the said wheel, a brush pinion is fixed to the brush and is non-engageable with the gear, a brush idler pinion meshes with the brush pinion and is in permanently fixed relation therewith, and a pair of spaced drive pinions are in permanent meshing engagement with the gear, the drive pinions being alternately engageable, one with the brush pinion and the other with the idler pinion, when the sweeper is travelling in opposite directions. As shown in Fig. 1, a bracket 41 rotatably carries a traction-wheel 11 and a coupling 45 for the brush spindle 60, the coupling being driven uni-directionally by gearing contained within the wheel. The traction wheel 11, Fig. 3, comprising a tyre 25 mounted on a rim 23 carried on a disc 24, is rotatable about a fixed dished member 33 which is sealed with respect to the wheel 11 by a dust-ring 36. The ends of the wheel spindle 31 are supported in bearings 40, one in a back-plate 42 of the bracket 41 and the other centrally positioned in the yoke 43 of the bracket. Rotatable with the wheel 11 is a gear-wheel 26. The gear-wheel has a reduced portion 73 which carries a rockable yoke 72, Fig. 4, having two arms 71, which arms carry rotatable pinions 65 and 66 spaced from the yoke by suitable sleeves. The pinions 65 and 66 are in constant mesh with the gear-wheel. A spring 74, Fig. 3, having ends 76 which bear on the spacer sleeves of the pinions 65 and 66, is wound around another reduced portion 75 of the gear-wheel. The spring provides a friction drive for the yoke 72 from the gear-wheel and according to which way the gear-wheel is rotated by the traction wheel, either the pinion 65 is made to engage with a pinion 52 connected to the brush coupling 45, or the pinion 66 is made to engage with an idler pinion 62 in constant mesh with the pinion 52. For any direction of rotation of the gear-wheel a unidirectional rotation will therefore be imparted to the pinion 52 and thus to the brush spindle 60.
Patent GB-1473171-A (GB)
Title: Supply circuit for a drive motor of the permanent magnet  field type
IPC: B60S1/08
Filed: 1974-06-07
Abstract: 1473171 Control of D.C. motors ROBERT BOSCH GmbH 7 June 1974 [9 June 1973] 25411/74 Heading H2J The invention relates to the modification of the control circuit for a two-brush wound-field D.C. motor (10), Fig. 1 (not shown), so that this motor may be replaced by a three-brush permanent magnet motor 20, normally controlled by a switch having three positions and six fixed contacts, Fig. 2 (not shown), without having to substitute the latter switch for the switch 11 controlling the two-brush motor and with no change in the connecting leads from the fixed contacts 12, 13, 14 of the switch 11. In the embodiment of Fig. 3, the lead from contact 12 is connected to a contact 49 of a limit switch 30, whose moving contact 31 is continuously actuated by the motor which controls the wipers of a motor vehicle. Contact 13 is directly connected to the "high speed" brush 22 and contact 14 is connected to the "low-speed" brush 21 through a diode 43 and contacts 44, 47 of a relay 41, whose other contacts 45, 47 complete a short-circuit braking loop for the motor when contacts 31, 50 of the switch 30 are closed. Movement of the contact member 16 to position II energizes the relay 41 and applies the voltage of source 15 to both brushes 21, 22. As the motor speed increases, a voltage builds up between brushes 21 and 23 to become greater than that of the source 15 and so reverse bias the diode 43, the effect being to disconnect the brush 21 from the source and leave the brush 22 connected for high speed running of the motor. Movement of member 16 to position I disconnects the brush 22 and connects the brush 21 for low speed running. Movement of member 16 to the off (O) position de-energizes relay 41 to cause braking of the motor, either immediately if contacts 31, 50 are closed or after rotation of the motor (through energizing circuit 52, 49, 31, 46, 45, 47 and 48) has caused contacts 31, 50 to close. The switch positions I and II produce the same speeds as when controlling the two-brush wound-field motor and the three-brush motor requires one less supply lead to operate it. In a modification, Fig. 4 (not shown), members 41, 44, 45, 47 are omitted, diode 43 is connected directly to members 21, 31, a resistor (61) is included in the braking circuit and a diode (60) is interposed between members 12, 49.
Patent GB-1399325-A (GB)
Title: Bicyclic compounds their use and process for preparing same
IPC: A23L27/20
Filed: 1973-05-29
Abstract: 1399325 Perfumes FIRMENICH SA 29 May 1973 [29 May 1972 17 July 1972] 25441/ 73 Heading A5B [Also in Divisions A2 C2 and C5] Perfume compositions contain a compound of the formula: containing a single or a double bond in the position indicated by the dotted line and wherein the index n represents zero or 1, one of the pairs of symbols X represents, when said symbols are taken together, an oxygen atom or, when said symbols are taken separately, a hydroxyl or an O-acyl group and a hydrogen atom, and the other pair represents two hydrogen atoms and wherein i) one of the symbols R<SP>1</SP> and R<SP>2</SP> represents a C 1-6  alkyl group and the other is a hydrogen atom and R<SP>3</SP> represents a C 1-6  alkyl group when the index n is zero; or ii) each of the symbols R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> represents a C 1-6  alkyl group or a hydrogen atom provided however that the pairs: R<SP>1</SP> and R<SP>2</SP>, and R<SP>3</SP> and R<SP>1</SP>, respectively, cannot simultaneously comprise more than one alkyl group.
Patent GB-902171-A (GB)
Title: Improvements in and relating to the manufacture of stockings
IPC: D04B15/06
Filed: 1958-08-08
Abstract: 902,171. Knitting. NEBEL, M. Aug. 8, 1958 [Aug. 10, 1957], No. 25468/58. Class 74(2). Loops are formed by the needles on a loopforming point or edge a of the sinkers which lies radially outwardly of the knocking-over throat e, so that when the needles, during loop forming, have reached their lowest position, the sinkers will act on the loops of the preceding course, with or without acting also on the course of loops last formed, in order to displace the loops which have been cast off the needles out of the region of and behind the needles, whereupon the sinkers effect an elastic equalization and distribution to equal size of the loops in the said preceding course by exerting elastic radially inward pressure on these loops. Each sinker bears a hook h, directed upwardly and forwardly to overlie the normal loop-forming edge and having a rear edge which is curved or slopes downwardly to the point or edge a which is at a distance from the throat e smaller than the greatest cross-sectional dimension of the needles through the hook and latch when the latch is closed on the hook and which lies at the same level as, or at a level only a little higher or lower than the level of-the normal loop-forming edge in front of the hook; and the sinkers are pressed by a tension spring F, surrounding their circle, between the needles against the loops of the preceding course. The sinkers may be provided also with a projection f, the forward edge of which may, as at b, be close enough to the hook h to act simultaneously on the last formed loop or, may be positioned as at c, so that it does not do so. The sinkers are advanced for knocking-over by cam S<SP>1</SP>, are held in that position by the spring F, are temporarily withdrawn by cam S<SP>2</SP> in correspondence with additional thread demand as the needles rise and are then returned by the spring F. The cam S<SP>1</SP> may be rendered inoperative during oscillation of the machine.
Patent GB-1392546-A (GB)
Title: Binary data communication apparatus
IPC: H04L27/02
Filed: 1972-05-31
Abstract: 1392546 Digital data modulators DEFENCE SECRETARY OF STATE FOR 24 May 1973 [31 May 1972 11 Dec 1972] 25490/72 and 56999/72 Heading H4P A data transmission system comprises : means 5 for converting a binary data sequence of predetermined bit duration into a related code sequence, having "1" signals of half bit duration; a gating arrangement 7, 8 receiving the related code sequence and a carrier signal from source 9, and producing at its output bursts of carrier signals corresponding to "1" signals of the related code sequence, each burst being in antiphase to the preceding burst; and a bandpass filter 12 arranged to pass one sideband, and having a response such that when a half bit duration burst of carrier signal is applied to its input, its output is a burst of twice the bit duration which rises from zero to a maximum amplitude in a time equal to one bit duration, and falls to zero again in a time equal to a further bit duration. In the embodiment of Fig. 2, the two gates 7, 8 are fed with antiphase carrier signals and are respectively opened by alternate "1" bits from return to zero coder 5. The "1" bits are fed to the gates by switch 6 which changes its position each "1" bit. In a second form using return-to-zero coding, Fig. 3, the output from the coder 31 is fed to a bi-stable 33 which switches between a positive and a negative output with succeeding "1" bits from coder 31. The carrier signal from source 36 and then multiplied by the bi-stable output, to produce a carrier whose phase inverts every other "1" bit. This signal is then applied to a gate 35 which is opened every time a "1" bit occurs to provide the input signal for the filter 37. In a third embodiment, Fig. 1 (not shown), a bipolar coder (1) produces "1" outputs of alternating polarity which control a gating circuit (2) to feed bursts of carrier of alternate phase to the filter (4). The resulting output of the above circuits is a single sideband signal modulated in both amplitude and phase, thus having error detecting properties if both forms of modulation are detected in the receiver. The signals may be demodulated by means of a circuit comprising an enveloped detector, a slicer, and a pulse reshaper Fig. 6 (not shown).
Patent GB-1480283-A (GB)
Title: Selfpropelled vehicles
IPC: B60Q1/44
Filed: 1974-06-10
Abstract: 1480283 Brake lights KOEHRING CO 10 June 1974 [10 Aug 1973] 25605/74 Heading G4Q [Also in Division B7] A self-propelled vehicle includes hydraulic control means to selectively operate the vehicle in forward and reverse directions and comprising a fluid passage wherein fluid reaches a predetermined pressure when the vehicle is braked while operating in the forward direction and substantially whenever the vehicle is moving at any speed in reverse; a pressure responsive switch actuator connected to the fluid passage; and means controlled by the actuator to effect illumination of a brake light when the predetermined pressure is reached. The invention is applied to a fork lift truck 10 provided with hydraulically stearable front 16 and rear 18 wheels; fork 31 is automatically maintained horizontal as boom 26 moves by actuating tilt cylinders 34 by slave cylinders 35 responsive to boom movement. Manually operable controls in cab 22 include a pedal 42 see also Fig. 4, which is selectively depressed to control forward and reverse directions of travel, is depressed to control vehicle speed, and is partially or fully released for hydrodynamic braking. Lights Fig. 10 include rear bulb filaments 46B serving as brake lighting. Brake light switch SB (see also Fig. 3) is associated with an actuator SA responsive to hydraulic pressure within a chamber in relief valve RV. Hydraulic, system, Figs. 1, 4, 7. Engine 20 Fig. 1, continuously in operation when the vehicle is in use, drives three hydraulic pumps 56, 57, 58. Pump 56 via control valves (64A, 64B, 64C, Fig. 8, not shown) operates boom lift and telescope cylinders &c. Pumps 57, 58 supply front 72, Fig. 7 and rear 74 hydraulic motors for respective wheel pairs to effect control of vehicle speed and direction. When motors 72 are decelerated by operation of pedal 42 Fig. 4 the pressure in the above relief valve RV rises (proportionally in magnitude and rapidity) above a pressure sufficient to energize the brake lights and when those motors are operated for reversing, no matter at what speed, the brake lights are energized. Pedal controls. Fig. 4. Throttle pedal 40 (for the left foot see also Fig. 2, not shown) and pedal 42 both actuate the engine throttle control lever via an axially movable cable 124. Pedal 42 is tiltable in see-saw manner about its pin 41, and the aforementioned pumps 57, 58 have swash plates controlled by pedal 42 movement.
Patent GB-151488-A (GB)
Title: Improvements in or relating to chambers for drying
IPC: F26B9/06
Filed: 1919-10-20
Abstract: 151,488. Fleury, P., and Robertson, D. L. Oct. 20, 1919. Chambers; air, controlling circulation of.-In apparatus for drying fish &c., of the kind in which hot air passes through a closed chamber having perforated trays and rotating fans above and below the trays, a blower is arranged in the exit, adapted to retard the exit of the air; a damper may be provided in the exit, and a perforated distributing plate or floor at the bottom of the chamber. Fig. 1 shows a chamber containing a series of perforated trays 22 resting on ledges and having slotted portions which surround the vertical fan shaft 11 when they are pushed into place through the door. This shaft is driven through bevel gearing from a shaft 14 and carries fans 15 between the trays, and a blower 16 of smaller diameter at the top below the dampered exit 7. The casing is spaced from the ground, air entering by passages 5 being heated by a coil 17 and distributed by a perforated plate 20.
Patent GB-510830-A (GB)
Title: Cross talk reduction
IPC: H04B3/34
Filed: 1938-09-02
Abstract: 510,830. Preventing inductive disturbance. STANDARD TELEPHONES & CABLES, Ltd. Sept. 2, 1938, No. 25741. Convention date, Sept. 22, 1937. [Class 40 (iv)] [Also in Croup XXXVI] In order to reduce cross-talk in a highfrequency cable comprising a number of pairs or two-pair quads, each repeater section is divided into two halves and the far-end crosstalk is measured in magnitude and phase at a selected frequency between the various pairs in both half-sections, after which the pairs are spliced together so that the unbalances in one half-section compensate as far as possible those in the other half-section. In the case of quads, the quads may be split, that is, the pairs of a quad in one half-section may be connected to .pairs in different quads in the other halfsection, but preferably the quads are spliced together without splitting in accordance with the within-quad cross-talk values in the halfsections. As shown, the cross-talk between two pairs 1, 2 is measured by means of a capacity bridge 3 and a resistance bridge 4 with corresponding arms in shunt. The test frequency is applied at one end of pair 1, and the far end of pair 2 is connected to the bridges 3, 4, the output of which feeds a telephone receiver 7 through an amplifier 5 and filter 6, and the bridges are adjusted to give zero output. The resistance bridge measures the inductance unbalance component which is at right angles to the capacity unbalance and usually predominates. An inductance bridge may be used instead of the resistance bridge. Although the cable is used for high frequencies, it is found that a test frequency of 1000 cycles gives satisfactory results. Any residual cross-talk may be reduced by the use of balancing units of the kind described in Specification 468,735. According to the Specification as open to inspection under Sect. 91, the splicings may be made in accordance with the inductance unbalance values only. This subject-matter does not appear in the Specification as accepted.