baber/WOPTO huggingface dataset:
Patent GB-953988-A (GB)
Title: Improvements in telegraph transmitters
IPC: H04L17/06
Filed: 1962-08-09
Abstract: 953,988. Telegraphy. CREED & CO. Ltd. (Standard Elektrik Lorenz A.G.). Aug. 9, 1962, No. 30552/62. Heading H4P. A transmitting arrangement for key or tapecontrolled teleprinters operating on the startstop principle, in which two pairs of contacts are alternately assigned to sensing levers via camcontrolled function vanes, with these sensing levers interrogating the respective combinations to be transmitted individually and successively. The contacts whieh are mounted in parallel alternately connect a current source to a transmission line. As shown, five cams 4 on a shaft 1 have staggered flats arranged to successively release for pivotal movement five bell-cranked sensing pins 5. Each pin moves in turn to position A or B under the action of a spring 5b according to whether or not the pin senses a hole in a fivehole tape 11. After the first pin has been released a feeler 8c attached to a function vane 8 pivoted at 10 is allowed to rise under camcontrolled action of spring 8b and, if the pin 5 is in position B, to move an arm 8a so that a contact pair 9 is allowed to close. The vane 8 is then returned to its original position and after the second pin has been released a further feeler similar to the feeler 8c mounted on a vane (not shown) similar to the vane 8 and also on the shaft 10 sets its own contact pair according to the position of the second pin. The two vanes are released alternately with successive pins 5, the vane 8, for example, having three feelers 8c positioned to feel alternate pins 5. In a modification the sensing pins 5 sense the position of keys.
Patent GB-954537-A (GB)
Title: Apparatus for stacking and weighing sliced food products
IPC: B26D7/30
Filed: 1962-08-09
Abstract: 954,537. Slicing machines. UNEXCELLED CHEMICAL CORPORATION. Aug. 9, 1962 [Aug. 11, 1961], No. 30581/62. Heading A4C. [Also in Divisions B8, G1, G3 and H3] Meat loaf or other food is continually fed by a hydraulic ram 45 to rotary slicing blade in housing 48 to form stacks of e.g. six to ten slices on stacker 32 which dumps them on an electric feed weigher 290, modifying the rate of feed of the meat-loaf in dependence on departure of the stacks from a desired weight. Further the weigher operates a reject mechanism 38 for any stacks under weight, or more than “ ounce overweight as they pass from the feedweigher across an airlift conveyer 36. Stacks within limits are transferred by endless conveyer 478 to a wrapping station 470, and thence by conveyer 504 to a boxing station. Rejected stacks are made up to proper weight by hand and transferred by a pouch conveyer 476 to. the wrapping station. The weighing scale may be of known parallelogram type with a movable core differential transformer which provides an output signal to control the feed rate, and reject solenoids. Control circuitry Fig. 26 (i) Weight control The transformer output after amplification and rectification passes to a weight detector circuit 526 which senses the change in signal due to the presence of a stack of slices to trigger a time delay circuit 528 which triggers a "read" circuit after the scale has settled down from impact of the stack. An inhibit circuit 532 prevents reading of the scale (i) for the first two stacks of the loaf, (ii) false trigger or bumping of the scale (determined by the level sensing amplifier), (iii) if the stack is so heavy that the transformer core is past the null point (determined by the phase-sense-comparator 534). If none of the inhibit signals are present the read circuit 530 generates a pulse to gate an inductive voltage time converter 542 comprising a pair of "square-hysteresis-loop-transformers" to provide output pulses having a duration dependent on the deviation of the weight signal from a reference value. These pulses energise "high" or "low" solenoids 420, 422 controlling a hydraulic servo-motor 410 driving a wedge 404 to adjust a throttle valve 390 Fig. 18 (not shown) thereby modifying the rate of feed of the ram 45. (ii) Reject circuits The reject circuit 552 gated by the "read time delay" detects whether the weight signal is within predetermined limits (see Division H3), and energises the reject solenoid to permit the stack to pass the rejector mechanism 38. Stacker The stacker Figs. 12, 17, (not shown) comprises two spindles each carrying blades 104 arranged at rightangles, and driven from the slicer through a "Geneva" mechanism to turn inwards together after a predetermined number of rotations of the slicer blade to deposit a stack of slices on the weigher. A three-speed gear-box Fig. 16 (not shown) enables 6, 8, or 10 slices to be selected.
Patent GB-1423549-A (GB)
Title: Formation of miniature electrical conductors
IPC: H01L21/3205
Filed: 1973-06-27
Abstract: 1423549 Electric conductors; printed circuits BUCKBEE-MEARS CO 27 June 1973 [15 Sept 1972] 30602/73 Headings H1A and H1R A process for making a conductor of rectangular section in printed-circuit production; comprises the steps of etching a conductive layer until regions below a resist pattern 12 are undercut to leave a first portion 13 of symmetrical trapeziform cross-section; then electroplating the first portion 13 with a complementary second portion 14 until the required section is built up. The natural tendency of the electroplating process to deposit ridges at the corners corrects the tendency of the etching process to taper the section. The angle # between each trapeziform side and the normal to the substrate 11 is arranged to fall between 10 and 30. The ratio of the base of the required final section W 2  to that of the trapezium W 1  lies between 3 and 4, and the ratio of the height of the final section h 2  to that of the trapezium h 1  lies between 2.8 and 8. The process is preferably used to make conductors having widths W 2  not exceeding 0À015 inch.
Patent GB-488079-A (GB)
Title: A line-spacing device for typewriters and like machines
IPC: B41J19/84
Filed: 1937-11-08
Abstract: 488,079. Typewriters. WANTDERERWERKE VORM. WINKLHOFER & JAENICKE AKT.-GES. Nov. 8, 1937, No. 30626. Convention date, Nov. 19, 1936. [Class 100 (iv)] Line - spacing mechanism.-In mechanism comprising a pawl-carrying slide and an adjusting-member for determining when the pawl enters into engagement with the ratchetwheel, the adjusting-member is displaceable, parallel to the direction of movement of the slide, in a guide on the support of the slide. In the mechanism shown in Figs. 1 and 6, a slide 20 operated by the line-spacing lever is mounted on pins 21 on the carriage 1 and supports a spring-urged pawl 13 which is normally prevented from engaging a ratchetwheel 5 on the platen by means of a stop 11 mounted in a slot 7 in the carriage. The stop is formed with a bevel for permitting the pawl to engage the ratchet-wheel when the slide is operated. The stop is adjusted by means of a member 10 which is loosely mounted on screws 15 on the stop and is formed with recesses 16 for engaging a pin 9 on the carriage, engagement being maintained by means of springs 18. To adjust the stop, the member 10 is rocked, moved laterally, and then released to permit re-engagement of the pin with one of the recesses. The recesses have spaceindicating graduations which are set with reference to a notch 8 on the carriage. The member may also have a graduation for use when the stop is so adjusted that the pawl is ineffective. The slide is provided with a tooth 30 for locking the ratchet-wheel. The mechanism may be arranged at either or both sides of the carriage, and in the latter case the line-spacing levers may be interconnected by a link. For enabling the stop 11 to be employed at either side of the carriage, the stop is formed with a bevel at each end.
Patent GB-260793-A (GB)
Title: Improvements in electrical resistances
IPC: H01C7/04
Filed: 1925-12-04
Abstract: 260,793. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Dec. 4, 1925. Drawings to Specification. Enamels for use with electric resistances consist of red lead, zinc oxide, raw kaolin and boric acid. to which may be added metal filings, or metallic oxides mixed with carbon so as to be reduced on heating.
Patent GB-383403-A (GB)
Title: Improvements in adjustable spanners
IPC: B25B13/16
Filed: 1931-11-06
Abstract: 383,403. Sliding-jaw wrenches. BATTISCOMBE, C. A., 187, Charlestown Road, St. Austell, Cornwall. Nov. 6, 1931, No. 30743. [Class 61 (iii).] An adjustable wrench comprises two handle members 1, 2 provided with angularly disposed jaws 5 each of the combined thickness of the handle members, the shoulder of t h e jaw on member 2 bearing on the flat on the member 1. Adjustment is effected by a milled head 9 and right and left screw 8 engaging tapped holes 3, 4 in the jaws, a pin 7 on the end of member 2 engaging a slot 6 in an extension of the member 1, or a loose pin may engage slots in both members.
Patent GB-428531-A (GB)
Title: Improvements relating to highway signs
IPC: G09F7/00
Filed: 1933-11-06
Abstract: 428,531. Road signs. WOOD, A., 16, Haslemere Avenue, West Ealing, London. Nov. 6, 1933, No. 30787. [Class 3 (ii)] In road signs of the kind which are internally illuminated or fitted with reflex lenses or reflex glass in sheet form, the exposed glass parts are protectively covered by panels of impactresisting glass, i.e. glass which has been toughened by subjecting it to heat treatment during its manufacture. Specifications 15099/86, [Class 56], 11262/10, [Class 3 (ii)], and 402,641, [Group XXIII], are referred to.
Patent GB-269611-A (GB)
Title: Improvements relating to metal grinding machines
IPC: B24B53/085
Filed: 1926-08-12
Abstract: 269,611. Gear Grinding Co., Ltd., and Snarry, J. W. Aug. 12, 1926. Turning.-The grinding-wheel a of a grinding machine is trued periodically by diamond or other tools c which are actuated by a fluid-pressure cylinder e. Fluid is supplied to the cylinder through an automatic valve i which is operated to reverse the movement of the piston by tappets j which through a lever k actuate further tappets on the valve spindle m. The lever k acts in conjunction with a change-over spring device s. To enable the mechanism to be actuated at different speeds the supply pipe g is fitted with a handcontrolled valve h formed with two or more outlet apertures q of different areas.
Patent GB-484072-A (GB)
Title: Improvements in and relating to means for adding steam to the charge in internal combustion engines
IPC: F02B47/02
Filed: 1937-11-10
Abstract: 484,072. Adding superheated steam to combustible charges. MICHEL, H. C. O., and RONODININGRAT, K. R T. Nov. 10, 1937, No. 30808. [Class 7 (ii)] Steam to be added to the charge in the carburetter 9 or the induction pipe, or injected into the combustion chamber, is twice superheated by the exhaust gases. Water kept under pressure in a reservoir 31 is converted into steam in the coils 21 and afterwards passed through the superheating elements 15, 3. being conveyed in the opposite direction to the exhaust flow. The water supply is controlled by a needle valve 35, and may be obtained from the engine cooling system. When insufficient steam is available, exhaust gases or atmospheric air may be induced into the flow through valves 48, 54, 20. The element 3 is supported by a removable cover 10 and the element 14 comprises an axial channel 17 for the unhindered passage of exhaust gases and an annular steam collector within the coil 15.
Patent GB-910208-A (GB)
Title: System for measuring the speed between relatively moving bodies
Inventor: SELING THEODORE VICTOR
IPC: G01S11/02
Filed: 1960-09-07
Abstract: 910,208. Measuring velocity. GENERAL MOTORS CORPORATION. Sept. 7, 1960, No. 30812/60. Class 40 (7). A system for measuring the relative transverse velocity between a body, e.g. an aircraft 12, and an object, e.g. the ground 14, comprises a multi-lobe antenna mounted on the body for receiving infra-red or microwave radio energy radiated by the object and means for detecting and measuring the frequency of the cyclic amplitude variations of the received energy, said frequency being a function of the relative velocity, the distance d between the body and the angle # between the adjacent lobes, it being assumed that d and # are known. When the antenna is mounted on the aircraft it is rotated relative to the aircraft to produce a maximum frequency of the cyclic variations thereby compensating for drift. Alternatively the apparatus may be located on the ground.
Patent GB-605584-A (GB)
Title: Process of dry-spinning solutions of cellulosic derivatives in a closed circuit
IPC: D01D5/04
Filed: 1945-11-16
Abstract: Extruded products such as filaments, threads, artificial horse-hairs, straws and the like having a basis of cellulose derivatives are dry-spun in a closed circuit, part of which is heated and part cooled to condense the solvent, the evaporative medium travelling in the same direction and at the same speed as the extruded products. Suitable apparatus is described in Specification 605,612.  In a typical example a 28 per cent solution of cellulose acetate in a mixture of 80 parts by volume of acetone and 20 parts by volume of ethyl alcohol is heated to 70 DEG  C. and extruded through a spinneret of 260 orifices into the spinning chamber, the heating jacket of which is heated by steam at 130 DEG  C., the cooling chamber is at 0 DEG  C., and the re-heating chamber is at 90 DEG  C.
Patent GB-821258-A (GB)
Title: Process for preparing substituted chloramines and substituted hydrazines
Inventor: BARRETT WAYNE T
Filed: 1956-10-10
Abstract: Organically substituted chloramines are prepared by contacting dry chlorine gas with more than the stoichiometric equivalent of a primary or secondary organic amine vapour while preventing the formation of a liquid phase.  The amine may, for example, have the formula RR1NH (wherein R is alkyl, aryl or alicyclic and R1 is the same or different alkyl, aryl or alicyclic radical or is hydrogen) and preferably the molar ratio of amine to chlorine is at least 5 to 1.  An inert diluent such as nitrogen may be present in the reaction zone, and the process may be conducted at atmospheric, subatmospheric or superatmospheric pressures, although when lower alkyl primary and secondary amines are used the reaction is advantageously conducted at atmospheric pressure and at a temperature above 50 DEG  C.  The above process may be combined with the further step of liquefying the organically substituted chloramine and reacting it with more than the stoichiometrical equivalent of anhydrous liquid ammonia or of an anhydrous liquid primary or secondary amine in the liquid phase and subsequently separating the organically substituted hydrazine so formed.  The amine may, for example, have the formula R1R1NH (wherein R1 is an alkyl, aryl or alicyclic radical or hydrogen) and when one or both of the radicals R1 is a lower alkyl radical the reaction is advantageously conducted at a temperature above 20 DEG  C.  The concentration of organically substituted chloramine in the reaction mixture is desirably 1 mol. per litre.  In a preferred method for the preparation of 1 : 1-dimethylhydrazine, dimethylamine and chlorine in a molar ratio of 15 to 1 are contacted for about 1 minute at above 50 DEG  C., solid dimethylamine hydrochloride is separated from the gaseous mixture, the latter is condensed and reacted with liquid ammonia at about 50 DEG  C. and p  about 14 kg./cm.2 for about 5 minutes, the resulting liquid reaction mixture is fractionated, the dimethylamine-dimethylamine hydrochloridedimethyl hydrazine fraction is treated with strong, anhydrous, non-volatile alkali to remove chloride-containing constituents, 1 : 1-dimethyl hydrazine is recovered by fractionation, a dimethylamine fraction from the first fractionation is recycled to the dimethyl chloramine step and an ammonia fraction from this fractionation is recycled to the dimethyl hydrazine step.  Other examples describe the preparation of dimethyl chloramine and 1 : 1-dimethyl-hydrazine by a non-cyclic process, and the preparation of methyl chloramine and 1 : 2-dimethyl hydrazine.
Patent GB-1194921-A (GB)
Title: Improvements in or relating to Injection Moulding Machines
Inventor: LORENZIN VIRGILIO
IPC: B29C45/68
Filed: 1967-07-05
Abstract: 1,194,921. Injection mould closing devices. V. LORENZIN. 5 July, 1967 [24 Jan., 1967], No. 30898/67. Heading B5A. Two injection moulds (not shown) arranged on opposite sides of a turret 10 are opened and closed by levers 23, 23<SP>1</SP> operated simultaneously through toggle levers, as 18, 19, by cylinder and piston motors, as 28, 29, arranged within the turret 10. The lever 23 is pivoted at one end 24 while the other lever 23<SP>1</SP> is pivoted between its ends. Valves are provided to stop injection when the moulds are full.
Patent GB-1420461-A (GB)
Title: Structural element
IPC: E04C2/20
Filed: 1973-06-28
Abstract: 1420461 Laminated metal-plastics foam panels; finishing edges K KARNER 28 June 1973 [3 July 1972] 30932/73 Headings B5N and B5K [Also in Division El]  Structural elements are made by heating at least part of a non-planar metal member and welding it to a foamed thermoplastic panel 1 by pressing it therein, the metal member being heated above the melting point of the thermoplastic material. In Fig. 1, an expanded metal sheet 2 having ribs 3, " herringbone " zones 5 and beads or ridges 4 is heated at least at the ribs 3 which are then pressed into the panel I so that the sheet 2 remains above it or lies on it; if the whole sheet is heated, the zones 4, 5 may be fused into the panel and a groove (Fig. 4, not shown) may be formed by melting the material around the ribs 3 to provide spaces for fastening elements. Individual elements may be connected by stepped recesses at their edges with the ribs 3 of adjacent sheets interlocking (Fig. 3, not shown). In Fig. 6, a metal member 9 of U, V, or trapezoidal section is pressed into the edge of a panel 1; individual elements may be connected by inserted elements or tongue- and-groove means. Metal members may be disposed on opposite faces of a panel 1 with the ribs parallel (in register or offset) or transverse. In manufacture, pressure should be maintained until the metal member has cooled. Continuous and intermediate techniques are mentioned. The metal member may support a plaster coat and the element may be used for ceilings, cladding panels and concrete shuttering.
Patent GB-1398780-A (GB)
Title: Food cooking apparatus
IPC: F24C3/00
Filed: 1972-07-03
Abstract: 1398780 Griddles THERMO ELECTRON CORP 3 July 1972 [23 July 1971] 31013/72 Heading A4D [Also in Division F4] Cooking apparatus comprises a Perkins tube or a heat pipe whereby heat is transferred from a combustion heat source to food to be heated. In the form shown, a griddle includes a heat pipe 16 having a food heating surface 22, a surface 24 heated by a gas burner 56 and by combustion products passing through openings 50 in corrugated baffles 52, a capillary structure 28 in the form of a woven wire mesh or porous sintered material on the surface 24 and a working fluid such as water or hydrocarbon oils or silicon based oils. Supply of gas to the burner 56 is controlled manually, or automatically by a solenoid valve or mechanical valve connected respectively to a thermistor or a liquid filled bulb sensing the temperature of the surface 22, or by a valve connected with the interior of the heat pipe and responsive to the pressure of the working fluid. The surface 22 may alternatively be defined by a plurality of tubes. In another embodiment, at least surface 22 is enclosed within an oven and defines hollow shelves.
Patent GB-1533670-A (GB)
Title: Magnetic tape recording and reproducing apparatus
IPC: G11B15/32
Filed: 1976-07-26
Abstract: 1533670 Tape recorders SONY CORP 26 July 1976 [14 Aug 1975] 31067/76 Heading G5R An open reel or cassette-type magnetic tape recorder has a magnetic tape transducing head 181, Fig. 1, on a head deck 52 which is slidable on a chassis 19 and has a central part of a spring 96, Fig. 6, connected thereto with projecting end parts 98, 99 of the spring 96 being respectively engageable by a record and a playback mode selecting push bars on movement of either bar in a first direction so as to shift deck 52 in the first direction to engage the head 181 with the tape, the spring 96 allowing the movement of the actuated push bar in the first direction to continue for a limited distance after the movement of the deck 52 has been arrested by stops 92, 94. Deck 52 carries a magnetic recording/playback head 181 and an erase head 182, Fig. 1, and is mounted on chassis 19 by balls (54), (62), (69), Figs. 3 to 5 (not shown), engaged between facing depressions in the deck 52 and chassis 19, a leafspring (77) acting on a ball (71) in a slot (72) in deck 52 to urge the latter against chassis 19, Ends 98, 99 of spring 96 are engageable by projections 101, 102 on record (15a) and playback (13a) push bars, Fig. 7 (not shown), operated by buttons 15, 13 respectively, Fig. 1, and held in the operative position by a locking bar (107) which is releasable by a bar 11a movable by a combined stop/eject push button 11, deck 52 then being returned by a spring 79 to the inoperative position. A magnetic tape cassette engaged by members 121 to 124, 126, 187 and 188 is ejected by a projection 81 on bar 11a. Members 121 to 124 and 126 are parts of a unitary plastics member 117 also including resiliently flexible sections 137, 138 pivotably supporting pawl 119 for sensing the presence or absence of the usual knock-out lug on the cassette, the absence of the lug causing a part 118 of member 117 to remain in the position in Fig. 1 to engage a part 116 on the record bar (15a) to prevent operation thereof. The reel drive shafts 20, 25 each have a pulley member (40), Fig. 11 to 13 (not shown), with a hub part (26) having flexible fingers (36), and a cylindrical locking member (28) with hooks (33), (34) which can be lockingly received in tapered slots (44), (46) in pulley (40) so that member (28) causes fingers (36) to engage in a groove (23) in a shaft (21) upstanding from the chassis to thereby retain the pulley (40) on the shaft (21).
Patent GB-172008-A (GB)
Title: Improvements in the commutation of direct current machines
IPC: H02K23/40
Filed: 1921-11-22
Abstract: 172,008. Forges et Ateliers de Constructions-Electriques de Jeumont, (Assignees of Ateliers de Constructions Electriques du Nord et de l'Est). Nov. 23, 1920, [Convention date]. Commutating poles; windings. - Bipolar machines, such as those mounted directly on the axles of high-speed locomotives, ate wound with an armature pitch so contracted as to give four commutating zones and commutating poles are provided at these zones without addition to the vertical height of the machine. In the bipolar form shown, the winding pitch B, B is 90‹ and the commutating poles A, which are excited by the coils C, are placed immediately adjoining the main poles so that their magnetic circuits are combined with those of the main poles. Two brushes are employed on a line coincident with the axis of the main poles.
Patent GB-686056-A (GB)
Title: Improvements relating to electrical measuring instruments
IPC: G01R1/12
Filed: 1950-12-21
Abstract: 686,056. Indicating-apparatus. LANDIS & GYR AKT.-GES. Dec. 21, 1950 [Dec. 27, 1949], No. 31145/60. Class 106 (iv). [Also in Group XXXVI] The diametrically-magnetized disc 5, Fig. 1, fast with a spindle 10 is suspended for rotation within a cylindrical stator core 4 by torsion strips 6, 7 secured respectively to curved leafsprings 11, 12 fixed to the instrument casing 1. The inner ends of the torsion strips 6, 7 are secured to bearing-pins 8, 9 which pass with small clearance through apertures 21, 22 in frame plates 23, 24 and in close proximity to the latter are the annular surfaces of the spindle 10. The D.C. to be measured passes through seriesconnected operating coils 15, 16, Fig. 2, to magnetize the stator core 4 and produce rotation of the permanent magnet disc 5 and deflection of a pointer 13 around a scale 14.