baber/WOPTO huggingface dataset:
Patent GB-1314848-A (GB)
Title: Electromechanical transducer assembly
IPC: H01L41/00
Filed: 1970-12-21
Abstract: 1314848 Rotary-percussive drill BRANSON INSTRUMENTS Inc 21 Dec 1970 [29 Dec 1969] 60486/70 Heading B3C [Also in Divisions B4 H2 and H4] An electrochemical transducer assembly, for providing longitudinal vibratory energy to a tool, comprises a metal shaft 24, Fig. 2, having an upper part 25 adapted to be coupled to a rotary machine tool such as a pneumatically driven drill device (10), Fig. 1 (not shown). A concentric cylindrical metal sleeve 32 acts to vibrate longitudinally at the operating frequency (e.g. 20 kHz). In use, the shaft 24 is held at two antinodes of vibration of the sleeve 32 by diaphragms 26, 34 which permit axial vibration of the shaft 24 and sleeve 32 relative to one another but substantially prevent relative radial vibration. Forces transmitted by the diaphragms 26, 34 are equal and opposite and hence cancel each other. Positive transfer of torque between the shaft 24 and sleeve 32 is ensured by screws 66, 66<SP>1</SP> located in the nodal region of the sleeve 32. The screws 66, 66<SP>1</SP> are covered by nylon bushings 68, 68<SP>1</SP>. Two piezoelectric discs 42, 44 of lead zirconate titanate are in contact with electrode discs 46, 48, 50 and provide the axial vibration. Two slip rings 56, 58 on an insulating sleeve 54 connect to the electrode discs 46, 48, 50. A set screw 62 secures the slip ring assembly to the coupling part 25 of the shaft 24. Electrical brushes and brush holders 64, 64<SP>1</SP> establish contact with the slip rings 56, 58. A chuck 17 carries a drill (16), Fig. 1 (not shown). A diamond impregnated tool may be used. The shafts 24 and 32 are of aluminium or titanium. In a modification (not shown) the shaft 24 is provided with the piezoelectric discs, and is resonant at the operating frequency. Magnetostrictive transducer elements (not shown) may replace the piezoelectric discs.
Patent GB-1373127-A (GB)
Title: Torsion resistant open end automobile body
IPC: B62D25/02
Filed: 1971-12-29
Abstract: 1373127 Vehicle bodies BUDD CO 29 Dec 1971 [29 Dec 1970] 60510/71 Heading B7B A unitary automobile body 10 is of the type having side frames connected to roof and floor panels, the side frames comprising inner and outer side panels 38, 40 connected to the roof and floor panels 70, 22. The inner and outer side panels each have A-post portions 21 and inverted Y-truss portions 66, 72, interconnecting a roof rail 70 and side sill 34, wheel arch panels 80 being connected to an inner and outer side panels at the inverted Y-truss portion so as to form an arch having a stem formed by a D-post 84 between the top of the wheel arch and the roof rail. A front transverse beam 18 connects the A-post portions 21 of the side frames, while a transverse rear beam 30 interconnects the rear sills of the side frames above the floor panel to provide a rigid rear end structure. The rear quarter panels 62 may receive a rear door (96) Fig. 13 (not shown) or may connect with a rear panel having window and boot apertures.
Patent GB-1180200-A (GB)
Title: Improvements in or relating to Feedback Amplifier Systems
IPC: H03H11/28
Filed: 1967-07-26
Abstract: 1,180,200. Negative feedback amplifying circuits. SIEMENS A.G. 26 July, 1967 [27 July, 1966], No. 61505/68. Divided out of 1,178,039. Heading H3T. In an amplifier having a first negative feedback path in series with both the input and output circuits of the amplifier, and a second negative feedback path in parallel with both the input and output circuits of the amplifier, the first feedback path takes the form of a twoterminal device #s comprising resistance and reactance in parallel, while the second feedback path is in the form of a T-network # 1 , # 2 , # p , at least one of the series arms of which is resistive: the shunt arm of the T-network is reactive and the ratio of its reactance to the reactance of the two terminal device is made less by 1 than the ratio of the resistance of the said one series arm and the resistance of the two-terminal network. It is shown in the Specification that if (1) the amplifier is terminated in a resistive load Z A  and the input series arm # 1  of the T- network is resistive and dimensioned in the manner specified, the input impedance WE of the amplifier may be made real and frequency independent and equal to the resistance of the two-terminal device. The output series arm # 2  may then be reactive and chosen to provide a desired frequency response without affecting the input impedance of the amplifier. If, alternatively (2) the amplifier input source impedance R g  is resistive and the output series arm # 2  of the T-network is resistive and dimensioned in the manner specified, the output impedance W A  of the amplifier may be made real and frequency independent. The input series arm # 1  may then be made reactive to provide a desired frequency response without affecting the output impedance of the amplifier. An amplifier stage of the first type may be followed by one of the second type by the interposition of a buffer stage which may comprise a grounded-emitter transistor stage with heavy negative feedback.
Patent GB-1261139-A (GB)
Title: Method and arrangement to initiate and control foaming in carbonated beverages
IPC: B67C3/06
Filed: 1969-12-17
Abstract: 1,261,139. Aerated beverages. INFRARODTEKNIK A.B. 17 Dec., 1969 [20 Dec., 1968], No. 61573/69. Headings B1C and B1M. Foam is generated in a carbonated beverage 19 to expel air from, and fill the neck of, the bottle 5 by a beam 18 of electromagnetic (principally infrared) radiation generated by a source 9, 11 and parabolic reflectors 10, 14, 15. Excess foam will be destroyed by the heating effect of the radiation on the upper layers of the foam. (For Figure see next column)
Patent GB-1280450-A (GB)
Title: Improvements in endless towing conveyor systems
Inventor: KUWERTZ E
IPC: B61B10/02
Filed: 1970-12-30
Abstract: 1280450 Power and free conveyor systems PFALZSTAHLBAU GmbH 30 Dec 1970 [31 Dec 1969 18 Nov 1970 20 Nov 1970] 61833/70 Heading B7L A power and free conveyor system comprises an endlesss chain 3 having drive means 2 connected therewith adapted to engage trolleys 4 running on a track 1, each drive means consisting of a pivoted latching arm 11 having a nose 13 which retains a pivoted drive arm 12 against a rear abutment surface on a wheel cap 20 of the trolley the front end of the cap being curved at 22 to allow arm 11 to remain in its latching position with respect to arm 12. To disconnect a trolley from its drive means a member 18 is inserted in the trolley path by an electromagnet 14 and the arm 11 in riding over this member releases the arm 12 which pivots clockwise. The drive means is released in a similar manner when two trolleys abut since the rear wheel cap 23 of the preceding trolley is shaped like the member 18. A notch for directing trolleys from the main track 1 to a side track 37 consists of a tongue 35 pivoted at 36 and movable between the two tracks by an electromagnet 42 and lever 38. The lever is pivoted at its mid point 381 and connected to the tongue by pin and slot means 39, 40 and to the magnet 42 by a spring 41. A return spring 43 biases the lever to the main trade position. In the side track position of the lever 38 the line joining the pin 39 and pivot 38<SP>1</SP> is at 90 degrees to the slot 40. A catch 60 biased to the raised position shown prevents trolleys from rolling back at the location of the switch after the front trolley wheels have passed over it. Normally the track on which the trolley run is of circular section but in the region of the switch it is of rectangular section and the trolley wheels, Fig. 8 are provided with two sets of running surfaces 57, 58
Patent GB-747215-A (GB)
Abstract: 747,215. Two-part couplings. SOC BELGE D'APPLICATIONS ELECTRIQUES SOC. ANON. Feb. 8, 1954 [Feb. 7, 1953], No. 3682/64. Class 38 (1). The charging contact 3 of a miner's lamp is located in a laterally off-set portion 6 at the bottom of a recess 7 in the body 1 and is protected against accidental contact by a pair of spring-controlled blocks 8, 10 slidable at right angles to each other and interlocked by means of claws 12 on block 8 which engage grooves 13 in block 10. Insertion of a charging plug 17 into a groove 16 formed by chamfers 14, 15 displaces block 8 laterally until the claws 12 disengage the block 10, whereupon continued insertion of the plug depresses block 10 until recess 6 is uncovered to permit a lateral projection 17b, on the plug to engage contact 3.
Patent GB-752675-A (GB)
Abstract: 752,675. Sparking plugs. NAPIER & SON, Ltd., D. March 3, 1955 [March 26, 1954], No. 8963/54. Class 7(4) In a sparking plug comprising a rod-like central electrode 13, Fig. 1, there is an earth electrode constituted by a frusto-conical sleeve 17 which surrounds the central electrode and is partially flattened to form an approximately oval gap with the central electrode the sleeve being exposed tc facilitate adjustment of the spark gap by distorting the sleeve. The plug body 10, which contains the insulator 11 seal 12 and cen. tral electrode 13 than increases in cross-section toward the sparking end, has an intermediate threaded portion 16 and the sleeve part 17 that projects into the combustion chamber. The active end of the electrode 13 has flat sides 21, Fig. 3, which are in spark gap relationship with the corresponding surfaces of the oval end of the sleeve. Holes 23, Fig. 1, may be incorporated in the sleeve 17. The sizes and shapes of the electrode 13 and the oval end of the sleeve 17 are such that should the electrode break it is prevented from falling out out of the plug.
Patent GB-760826-A (GB)
Abstract: 760,826. Knitting-machines. WOLSEY, Ltd. Jan. 17, 1955 [Jan. 15, 1954], No. 1256/54. Class 74 (2). The yarn guide for a circular machine has a guide throat 23 which is tapered from a layer to a smaller cross-section in the direction of feed of the yarn and is also throughout of elongated section with the greater width of section in the general direction of movement of the yarn on leaving the guide.
Patent GB-2000601-A (GB)
Title: Imaging an auxiliary light-beam path in a main light-beam path
IPC: G02B27/00
Filed: 1978-06-02
Abstract: To form an image from a second light source 8 in the light-beam path 5 from a first light source 1 to a photosensitive sheet 4, a partially-transparent reflector 10 is located at the intersection of the beam paths image and to overcome deterioration due to astigmatism a compensating plate 14 is disposed in the light beam path from the first source. The partially-transparent reflector 10 is set at an angle of 45 DEG  about a first axis to the first light beam path, and the compensating plate is set at an angle of 45 DEG  about a second axis, perpendicular to the first axis, to the first light beam path. The system is for use in a typesetting machine. <IMAGE>
Patent GB-2000677-A (GB)
Title: Sport glove
IPC: A41D19/00
Filed: 1978-06-16
Abstract: This disclosure relates to an improved sport glove construction comprising inner and outer glove shells of different constructions. The inner glove 30 is constructed of a highly elastic stretchable material, so constituted as to be received tightly over the entire hand of the wearer, snugly enclosing and conforming the individual fingers and thumb, as well as the palm and back areas of the hand. The elastic inner glove is entirely enveloped by a second or outer glove 31 of a material and construction selected to provide appropriate gripping and other characteristics. The outer glove may be of a somewhat elastic material, such as knitted fabric, but may also be of a relatively nonelastic material, such as leather, vinyl or the like, or may be a combination of materials. The inner and outer glove sheels are attached in a manner permitting the necessary degree of elastic expansion of the inner glove shell relative to the outer sheel when the glove is applied to the hand. As shown, the shells are attached to one another at the tips 32 of the finger and thumb stalls and around the cuff 33 by a line of loose stitching 34. <IMAGE>
Patent GB-2024156-A (GB)
Title: Storage envelopes or sleeves
IPC: B65D27/08
Filed: 1978-06-30
Abstract: A storage envelope or sleeve, particularly for processed X-ray films, consists of front and back panels (1,2) joined together at a hinge line and connected along the intermediate sides by connecting flaps. An inner pocket is formed from a third flap (3) which is folded to lie against the inner face of the back panel (2) and is glued thereto to define the inner pocket. The panels may have additional score lines parallel to the closed sides of the envelope and the inner pocket by means of which the envelope and the inner pocket can accommodate bulky contents. The free edge (8) of the pocket is inset from the open side of the envelope, and finger cut-outs may be provided to facilitate access to the contents of the envelope and the pocket. <IMAGE>
Patent GB-2002902-A (GB)
Title: Method and apparatus for acoustically investigating a casing and casing cement bond in a borehole penetrating an earth formation
IPC: E21B47/00
Filed: 1978-07-04
Abstract: Methods and apparatuses for acoustically investigating a casing in a borehole to derive the quality of a cement bond behind the casing and casing thickness are described. The techniques employ an acoustic pulse source having a frequency spectrum selected to stimulate a selected radial segment of the casing into a thickness resonance. The selected frequency spectrum enhances the reverberations between the inner and outer walls of the casing which traps the thickness reverberations with significant amplitudes for a duration depending upon the amount of acoustic energy leaked into adjacent media. The acoustic pulse causes acoustic returns which are formed by the reflections from interfaces between media of different acoustic impedances and acoustic energy leaked into the bore of the casing from the acoustic thickness reverberations stimulated within the casing walls. The acoustic returns are detected to generate a reflection signal which is processed to determine casing thickness or to evaluate the cement bond. The acoustic pulse has a frequency spectrum which is particularly effective in discriminating different cement bond conditions caused by small cement separations known as microannuli, around the casing. Several signal processing techniques and tools are described to provide accurate and high resolution cement bond evaluation and casing thickness determination by processing a portion of the reflection signal representative of the thickness reverberations. <IMAGE>
Patent GB-2024729-A (GB)
Title: Boat hulls
IPC: B63B9/06
Filed: 1978-07-05
Abstract: The invention relates to a boat hull formed from a planar sheet of material and a method of producing the boat hull from the sheet which has a plurality of slots arranged to enable it to be folded or curved into the shape of the hull. To produce a smooth finish certain of the slots terminate in holes which are filled in subsequent to the sheet being curved. Various preferred materials are described. <IMAGE>
Patent GB-2001434-A (GB)
Title: Measurement of somatic cells in milk
IPC: G01N21/76
Filed: 1978-07-18
Abstract: In the detection of mastitis and measurement of hygienic quality of milk, somatic cells in a sample of the milk are treated to release ATP, the sample is mixed with firefly luciferin-luciferase reagent, and the light intensity emitted by the sample is measured with a photometer. A portable photometer is described for field measurement of somatic cells in milk or in other types of samples where luminescent measurements are done in field conditions.
Patent GB-2002164-A (GB)
Title: Displaying data to drivers in vehicles or vessels
IPC: B60R16/023
Filed: 1978-08-03
Abstract: An electro-optical display (6, 7, 13) which can be selectively switched in zones between at least two different optical states, is arranged outside the field of vision but its image can be observed through a partially reflective area 11 within the driver's field of vision. The display element (6) is preferably a liquid crystal display, an electro-chromic display or an electro-luminescent display. Data is displayed using a control pulse generator (21) and decoders (22, 23), to inform the driver of operating parameters without noticeably disturbing his concentration upon what is happening about his vehicle or vessel (Figure 1). <IMAGE>
Patent GB-2003750-A (GB)
Title: Separator device
IPC: A01D17/10
Filed: 1978-09-07
Abstract: In a harvesting device for separating round root crops, such as potatoes, from soil and other unwanted material, the crop and the soil in which it is growing is uplifted into the harvesting device by the forward movement of the device. The uplifted material is delivered into two conveyors, one positioned above the other and one running at a different speed from the other. The upper conveyor has a series of transverse members, such as fingers and flaps, which break up the uplifted material into discrete portions and these transverse members form with the lower conveyor a series of pockets so that each discrete portion of uplifted material lies in a pocket. The conveyors are inclined and this combined with the differential speed causes the material to be tumbled and the round root crops to roll free of unwanted material. <IMAGE>
Patent GB-2006553-A (GB)
Title: A Pulse-Width Modulated Inverter
IPC: H02M7/527
Filed: 1978-10-02
Abstract: In a pulse-width modulated thyristor push-pull inverter having a turn-off inductance L, a turn-off capacitance C across a centre-tapped main transformer TR, and diodes D1, D2, reversely connected across the thyristors Th1, Th2, each thyristor is turned on for several chopping frequency pulses during each half cycle of the a.c. output of the inverter. The other thyristor is triggered to turn off the first. Roles are exchanged each half-cycle. During the off portions of the pulses the primary current is maintained by the transformer via the diode which by-passes the other thyristor and incidentally charging the battery forming the d.c. source for the inverter. The widths of the conductive pulses are determined by electronic control means (2, 4, 6, 8, 10, 16, 18) to regulate the output and the chopping frequency is synchronized with the AC output frequency and from 5 to 10 times this AC frequency for normal mains replacement applications. <IMAGE>
Patent GB-2006411-A (GB)
Title: Slide gate and method for manufacture
IPC: B22D41/32
Filed: 1978-10-13
Abstract: A refractory slide-gate portion of a sliding gate valve system for a vessel dispensing molten material comprises a metal supporting container or can (12) filled with a low-fired coherent chemical bonded refractory (14). The refractory is formed into a coherent refractory body within the metal supporting can by applying pressure thereto and becomes directly affixed thereto, without the use of refractory mortar. An orifice through the refractory forms the means of controlling the flow of molten material. <IMAGE>
Patent GB-2006797-A (GB)
Title: Transparent polyamides
IPC: C08G69/36
Filed: 1978-10-27
Abstract: The transparent co-polyamides according to the invention are obtained by co-polycondensation of mixtures of terephthalic acid, or of an amide-forming derivative thereof, and a diamine of the formula I   <IMAGE> in which R1 and R2 are each cycloalkyl which has 4-12 C atoms and which can be substituted by alkyl,   (a) with an aliphatic amino acid, for example 10 to 20% by weight of epsilon - aminocaproic acid or caprolactam or b) with an aliphatic diacid-diamine combination, for example 10 to 20% by weight of an essentially stoichiometric mixture of adipic acid and hexamethylene-diamine or of the AH salt.   The polycondensation reaction is performed by known methods, preferably by melt condensation. The resulting polyamides are transparent and are resistant to boiling. They show only a slight absorption of water and are stable to hydrolysis. They can be processed for example by the injection-moulding process and by extrusion into the form of moulded articles.
Patent GB-2203223-A (GB)
Title: Control means
Inventor: YOUNG ROBERT WILLIAM
IPC: B64C17/00
Filed: 1978-11-20
Abstract: Means for controlling a flight vehicle (for example a guided weapon) which in flight is subject to both a rotation about an axis (for example the roll axis) and to acceleration normal to that axis including movable ballast means, housable within the vehicle which include a first mass movable in a plane including the axis of rotation, and a second mass movable in a plane including the axis of rotation and normal to the first plane, both masses being movable in response to the direction of the rotation and to the direction of the acceleration so that a torque opposing the rotation is generated.
Patent GB-2013327-A (GB)
Title: Double pipe heat exchanger
IPC: F28D7/10
Filed: 1979-01-11
Abstract: A heat exchanger consists of an outer shell, and an inner tube formed as a plurality of tube portions such as 46, 48 interconnected in series by loops such as 44, the inner tube and outer shell being concentrically arranged at least at said tube portions, the inner tube passing in a bend through the walls of the outer shell to the outside of said shell on either side of at least one loop (e.g 44) of said tube, where said shell consists of a pair of pipes, e.g. 34, 36, each having an open end (e.g the lower end) with removable closing means (e.g a cover plate 50 or 52) thereon to permit cleaning of the shell adjacent the loop. The closing means may comprise a U-bend (e.g. 24 Fig. 3) interconnecting said pipes; or said pipes may be interconnected by a cross-over pipe 42. <IMAGE>
Patent GB-2014458-A (GB)
Title: Automatic pliers for placing strings and the like under tension, particularly for the stringing of tennis rackets
IPC: A63B51/14
Filed: 1979-02-21
Abstract: Rotary pliers for string stretching in tennis racket stringing, the pliers comprising a rotating body rotatably carried in a stationary mounting or support member and control operated. The rotating body comprises a string winding up surface, a space or recess for receiving the string, capable of being enlarged and restricted to clamp the string, the space or recess being restricted by spring means and enlarged by interaction between a feeler element rotatably driven with the rotating body and an abutting element integral with the mounting of support member.
Patent GB-2043473-A (GB)
Title: Method and apparatus for distilling liquids
IPC: C02F1/04
Filed: 1979-03-08
Abstract: In a method and apparatus for distilling liquid the latter is repeatedly vapourised and condensed in respective successive distillation units I-II--N at descending temperature levels TI-TII --TN, the liquid also being vapourised and condensed in two or more stages V1-V2-Vm in at least one of said units I-II--N. The liquid passes from the evaporator 11I of one distilling stage V1 of a distilling unit I to the evaporator 12I of the succeeding distillation stage V2, in which prevails a lower pressure than in the preceding evaporator 11I and the liquid flowing in the evaporators 11II, 12II, 13II of the succeeding distillation unit II, operating at a lower temperature level TII, is conducted as a cooling medium through the condensers 16I, 15I, 14I of the distillation stages Vm, V2, V1 of the first distillation unit I. The said units I-II--N comprise condensers 14, 15, 16 with horizontal tubes. Pipes 22, 23, 25, 26, 27 and pumps 17, 18, 24, 28 serve for transfer of cooling and other fluids, pipes 31 serve for discharge of distillate if required. The liquid to be distilled enters through pipe 29, and final concentrate leaves through pipe 30. A heater 10 heats liquid passing via the pump 17 from the evaporation 13I to the evaporator 11I. <IMAGE>