baber/WOPTO huggingface dataset:
Patent GB-1053517-A (GB)
IPC: G03B19/12
Abstract: 1,053,517. Single lens reflex cameras. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. June 3, 1964, No. 22964/64. Heading G2A. In a single lens reflex camera a diaphragm aperture is selected according to the prevailing light conditions by pressing a measuring key 14 inwards, such that switch arm 15 of measuring lever 13 closes switch 16 to complete measuring circuit 20. A lug 12 of lever 13 rocks a control lever 2 which in turn actuates plunger 4 to close the normally fully open aperture to a selected value. A diaphragm preselector (not shown) on the objective is then adjusted until meter 17 indicates the correct setting for the prevailing light conditions. When key 14 is released the diaphragm returns to fully open position, since plunger 4 follows lever 2 in its return movement. When release button 11 is pressed for making an exposure the diaphragm is again set to the preselected aperture. A double conical part 22, Fig. 5 (not shown), co-operates with a bell-crank lever 23, Fig.4 (not shown), to hold the key 14 in depressed position, Fig. 3 (not shown). The key 14 is pulled out manually or released by depression of button 11. In another embodiment, a locking lever 27, Figs. 6 and 7 (not shown), is rocked by tilting view finder mirror 28 to engage a locking lug 33 of a switch lever 32.
Patent GB-1143864-A (GB)
IPC: H01L23/29
Abstract: 1,143,864. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 12 Jan., 1967 [15 Jan., 19661, No. 1668/67. Heading H1K. A diffusion mask or passivating coating on a semi-conductor body comprises a carbide and an oxide. In the preferred embodiment a coating of silicon carbide is deposited from the vapour phase to a depth of a few Á on an oxide coated silicon body maintained at 400 C., electrode areas &c. being masked during the process. The carbide bonds well to the oxide coating, which may consist of silica, silicon monoxide or a low melting oxide glass, to give a stable coating.
Patent GB-1226638-A (GB)
IPC: D21B1/10
Filed: 1968-12-23
Abstract: 1,226,638. Paper disintegrators. ZAVOD TRANSPORTNOGO MASHINOSTROENIA. 23 Dec., 1968 [22 Dec., 1967], No. 60998/ 68. Heading B2A. A paper disintegrator particularly for destroying classified documents comprises beater arms 7 .. 12 pivotally mounted in discs 13.. 16 secured to a rotatable vertical shaft 1. A helical and reciprocable screw conveyor 31 below the beater arms delivers the comminuted paper to an outlet 32 in the form of a compacted plug. Air is circulated by a fan 23 via air return ducts 40 provided in a doublewalled enclosure surrounding the knives and passes through ports 30 in the inner wall of this enclosure, and so draws material through the grinding zone. The vertical shaft 1 has distributing rods 19 which throw paper inserted through the inlet 26 towards the enclosure wall. The paper is delivered by inclined guides 28 through the grinding zone and is initially comminuted by serrated edged beater arms 7, 8 and further comminuted by straight-edged beater arms 9 .. 12. The beater arms 7 .. 11 are arranged helically along the shaft. The bottom wall 5 of the guiding chamber is perforated. The screw 31 is rotated by motor 33 and gearing 34. A pin 37 secured to the housing engages a helical slot in a flange secured to the conveyor shaft 35 so that rotation causes reciprocation of the shaft.
Patent GB-1229873-A (GB)
IPC: H05H1/34
Filed: 1968-08-26
Abstract: 1,229,873. Cutting by plasma arc. MESSER GRIESHEIM G.m.b.H. 26 Aug., 1968 [26 Aug., 1967], No. 40725/68. Heading B3V. [Also in Divisions H3-H5] A plasma arc-cutting torch wherein an electric arc is formed between an electrode 17 and the workpiece 16, has a Laval-type gas nozzle 10. The plasma beam is produced by first generating an auxiliary arc between the electrode 17 and the nozzle inlet 20 to ionize the gas flowing from ducts 14 through the nozzle bore 11, whereupon the main arc is struck between the electrode 17 and workpiece 16 using a power source 18. The outwardly flared portion of the nozzle bore 11 has an angle α of 10-25 degrees, preferably 18 degrees, and a length L 0À5-0À8 times the total length L. The nozzle diameter at the narrowest point is 0À5-5 mm. and the wall thickness is less than 1 mm. Cooling water is supplied through a duct 22. In an alternative embodiment, Fig. 2 (not shown), the electrode 17 is positioned on a ceramic ring (27) which is stuck to a flange (28) of the nozzle and which has gas duets 29 on its upper side to effect a rotary movement to the gas flowing through the nozzle bore (31).
Patent GB-1229953-A (GB)
IPC: B60J1/20
Filed: 1968-06-05
Abstract: 1,229,953. Vehicle wind deflectors. L. MASI. 5 June, 1968 [30 June, 1967; 18 Jan., 1968], No. 26801/68. Heading B7J. [Also in Division F4] A ventilating and wind screening mask 2 is formed of a planar sheet of rigid or semi-rigid material, such as metal or plastics, having a plurality of holes 5 of diameter less than 1.5 mm. extending normally therethrough, and is provided with means for securing it to the frame 3 of a vehicle slidable side window 4 so that adjacent normally directed edges of the mask lie adjacent the upper horizontal and vertical rear edges of the frame respectively. Such means may be two metal laminae 6 riveted to the top edge of the mask and provided with prongs 15, 15<SP>1</SP> so that they are held when forced into the window seal 10, or a straight or L-shaped frame may be secured to the rear or top and rear mask edges respectively, with lugs for screw fixing, Figs. 4, 5 (not shown). In other embodiments, portions shaped as laminae'6 are formed integral with the mask, or bevelled top and side mask edges are forced at M between the seal 10 and frame 3, Figs. 9, 10 (not shown). At least some of the holes 5 may have counterbores (20), Fig. 8 (not shown), at at least one end, particularly at the externally facing ends of the rear holes and the internally facing ends of the forward holes. An integral rib or a metal U-rim along the lower mask edge may stiffen the mask, as does the straight or L-shaped frame, if provided.
Patent GB-1229966-A (GB)
IPC: G05D23/275
Filed: 1968-08-28
Abstract: 1,229,966. Thermal storage heaters. PARKINSON COWAN Ltd. 28 Aug., 1968, No. 41088/68. Heading F4U. The core of a thermal storage heater is provided with electric heating elements in circuit with a plurality of thermal switches which operate at different temperatures and which are sensitive to the core temperature, means being provided to enable charging of the core to be terminated by a selected switch. As illustrated, groups of heating elements 2a, 2b, 2c are connected in circuit with a current supply 4, switches 6 and 8 which changeover from contacts 6a to 6b and 8a to 8b when a lower core temperature and a medium core temperature respectively are attained, a switch 10 which opens when a higher core temperature is attained, a selector 12, and a safety cut out 14. When the selector is set to provide the lower core temperature the pairs of contacts AB, CD, and EF are all on open circuit and the core is heated by the elements 2a until the switch changes over to the contact 6b to terminate charging. When the selector is set to provide the medium core temperature, the contacts AB are joined. The switch 6 operates as before and in addition the heating elements 2b and 2c are energized through the switch 8 and the switch 10 until the switch 8 changes over to its contact 8b to terminate charging. When the selector is set to provide the higher core temperature the three pairs of contacts AB, CD, EF are joined so that in either position of the switches 6 and 8 all the heating elements are energized and charging is terminated by the opening of the switch 10. The thermal switches are disposed inside the heater casing but outside an insulating layer surrounding the storage core.
Patent GB-1231097-A (GB)
IPC: B23D61/02
Filed: 1968-09-30
Abstract: 1,231,097. Sawing. FIRTH BROWN TOOLS Ltd. 24 Sept., 1969 [30 Sept., 1968], No. 46295/68. Heading B5L. A circular saw block comprises teeth provided with tips of tungsten carbide or other material harder than the material of the saw blade, the back of some or each of the teeth being reduced in thickness by a step, recess or other formation at each side of the tooth over an area EFGH extending from or near the bottom of the gullet behind the tooth outwardly towards or to the peripheral edge of the tooth. The stop reduces the loud whistling noise emitted when the saw is running at high speed and out of contact with a workpiece. Each step may have a height equal to 25% of the thickness of the tooth and a width equal to the thickness. The step may have the shape EFGH shown solid or be of arcuate shape JKL or extend below the gullet and have the. shape MNPQ. The teeth may be provided with shoes for relieving thermal stresses.
Patent GB-1231359-A (GB)
IPC: C07C6/12
Filed: 1969-12-09
Abstract: 1,231,359. Ethyl diphenyls; heat transfer media. YAWATA CHEMICAL INDUSTRY CO. Ltd. 9 Dec., 1969 [21 Dec., 1968 (2)], No. 60112/69. Headings C4X and C5E. Ethyl diphenyls are produced by reacting diphenyl with ethyl-substituted benzenes at 70- 130 C. in the presence of a Friedel-Crafts catalyst, e.g. AlCl 3  or BF 3 , the molar ratio of ethyl groups to diphenyl being at least 1À5, and the diphenyl conversion being kept below 75% by weight. Any ethyl-substituted benzenes may be used, e.g. diethyltoluenes, but preferably there is used a by-product from the alkylation of benzene with ethylene comprising mainly diethyl benzenes. Up to 0À5 mole of diethyl diphenyls, per mole of diphenyl, may be present during the reaction. The products are mainly 3- and 4-ethyl diphenyls. The invention also comprises heat transfer media comprising at least 80% by weight of 3- and 4-ethyl diphenyls, the ratio of 4- to 3- being not more than 2À5, and the balance being 9- methylfluorene and traces of 2-ethyl diphenyl. Such compositions may be obtained by the process outlined above.
Patent GB-1231844-A (GB)
IPC: F22G5/14
Filed: 1968-04-10
Abstract: 1,231,844. Steam turbines. INTERNATIONAL COMBUSTION (HOLDINGS) Ltd. June 5, 1969 [April 10, 1968], No.17229/68. Heading F1T. [Also in Division F4] A re-heater for a steam generating plant, having at least two parts 1a, 1b each with steam inlets 4, 5 and outlets 11, 12, has control valves 6, 7 for controlling steam flow through at least one of the parts and cooling means 15 with further control values 13, 14 for diverting through the cooling means a desired preparation of the steam prior to its entry into one or other of the parts. The re-heater may be installed between stages of a turbine, and the cooler 15 may be a non-constact desuperheater supplied with boiler feed water through pipes 16, 17 provided with a by-pass 18. The re-heater is divided into two or three or more parts by diaphragm plates 2. One only steam control valve such as 7 need be provided. The invention is used for balancing steam flow through the re-heater parts and providing a desired output temperature.
Patent GB-1232425-A (GB)
IPC: A62B9/02
Filed: 1968-07-18
Abstract: 1,232,425. Respiratory apparatus. BENDIX CORP. 18 July, 1968 [20 July, 1967], No. 34270/68. Heading A5T. [Also in Division G3] An oxygen regulator, e.g. to control the oxygen-air mixture to the face mask of an airman, comprises a body 12 having an inlet port 14 for oxygen under pressure, an inlet opening 16 for ambient air, and an outlet opening 18 adapted to be connected to breathing apparatus (e.g. the face mask), there being an oxygen regulator valve 22, 24 and an air regulator valve 28, 30 connected together by a proportioning member 46 so that an increase in the restriction of one valve proportionally decreases the restriction of the other valve, there being a spring 52 urging the proportioning member 46 in one direction and a dynamic seal 48 (e.g. a piston or diaphragm) arranged to urge the member 46 in the opposite direction under the pressure of oxygen available through a passage 56 so that the proportion of oxygen flowing through the outlet opening is a predetermined proportion of the total flow through the opening. As shown, at normal air pressures, an inhalation demand at the outlet 18 is transmitted through the valve 22, 24, a passage 78, and causes (see Figure 2, not shown) a diaphragm 80 to open a pilot valve 68 allowing oxygen to flow from the inlet 14 along a passage 61, through the pilot valve and the passage 78, and into the outlet 18. The flow of oxygen through the pilot valve and a restriction 62 creates a pressure differential across a main valve 42 and this valve opens so that a primary flow of oxygen passes along a passage 38 through the main valve 42 and regulator valve 22, 24, and into the outlet 18. The inhalation demand at the outlet 18 also opens a check valve 32 so that air from the inlet 16 and passing through the regulator valve 28, 30 mixes with the oxygen in the outlet 18. When oxygen pressure at the inlet port 14 fails, the spring 52 is able to move the member 46 and seal 48 against the oxygen pressure in the passage 56 so that the air valve 28, 30 is closed and (serving as a warning) the airman breathes pure oxygen. At high altitudes, an aneroid 84 expands and opens a valve 100 which, through passages 56, 104 and an outlet 94, vents the oxygen below the seal 48 so that the spring 52 causes the oxygen regulator valve 22, 24 to fully open and the air regulator valve 28, 30 to close and the airman breathes pure oxygen on demand. At still higher altitudes (Figure 3, not shown) the aneroid 84 expands further and a plate 90 moves against a seat 98 to close off the vent 94 and oxygen pressure in the diaphragm chamber 97 causes the diaphragm to maintain the valves 68, 42 open. The plate 90 and seat 98 act as a relief valve against excess oxygen pressure in the chamber 97. The apparatus includes a manually controlled vent valve 110 which may be arranged to relieve oxygen pressure below the seal 48. When the vent valve is operated, the valves 22, 24 and 28, 30 move so that the airman receives 100% oxygen.
Patent GB-1232758-A (GB)
IPC: C07D487/04
Filed: 1969-08-25
Abstract: 1,232,758. 5 - Amino - 6 - chloro - 1H - imidazo[4,5-b]pyrazin-2-ones. MERCK & CO. Inc. 25 Aug., 1969 [31 Aug., 1968], No. 42184/69. Heading C2C. 5 - Amino - 6 - chloro - 1H- imidazo[4,5 - b]- pyrazin-2-ones of the general formula wherein R and X 1  are each a hydrogen atom or a C 1-5  alkyl group, X 2  is a hydrogen atom or a C 1-5  alkyl, C 1-5  alkoxy-C 1-5  alkyl, monocyclic aryl (optionally halo-substituted), pyridyl or R 4 R 5 N-C 1-5  alkyl group, in which R 4  and R 5  are each a C 1-5  alkyl group or R 4 R 5 N is a saturated 5- or 6-membered heterocyclic ring optionally containing an NH or N-C 1-5  alkyl group or an oxygen atom, are prepared by refluxing a solution of a 2,5-diamino-3- (alkoxycarbonylamino or ureido)-6-chloropyrazine of the general formula wherein Y is an amino, C 1-5  alkylamino, di- (C 1-5  alkyl)-amino or C 1-5  alkoxy group. 2,5 - Diamino - 3 - [alkoxycarbonylamino or ureido)-6-chloropyrazines of the second general formula above are prepared by reaction of methyl 3 - amino - 5,6 - dichloropyrazinoate with an amine of the general formula X 1 X 2 CHNHR, alkaline hydrolysis of the resulting methyl 3,5-diamino- 6-chloropyrazinoate of the general formula concomitant decarboxylation and nitration of the 3,5-diamino-6-chloropyrazinoic acid of the general formula so formed, reaction of the resulting 2-nitro-3,5- diamino-6-chloropyrazine of the general formula with (a) a urea of the general formula H 2 NCON(R1) 2 , wherein R<SP>1</SP> is a hydrogen atom or a C 1-5  alkyl group, (b) a chlorocarbonyl compound of the general formula ClCOY, (c) a di- (C 1-5  alkyl)carbonate or (d) an alkali metal cyanate and hydrogenation of the 2-nitro-3- (alkoxycarbonylamino or ureido) - 5 - amino - 6- chloropyrazine of the general formula thus produced in the presence of a catalyst.
Patent GB-1234383-A (GB)
IPC: F23M9/00
Filed: 1967-09-26
Abstract: 1,234,383. Collecting condensate. SANTON Ltd. 16 Sept., 1968 [26 Sept., 1967], No. 43680/67. Heading F4W. Absorbent members 25, 26 of refractory material, such as asbestos fibre, are placed in the waste gas outlet passages 20, 22 of a gas fired liquid heating stove so as to collect condensate and prevent corrosion. As shown, gases from a burner 15 heat liquid in a tank 2 in their passage below a finned bottom plate 18 to the collecting passage 22. The plate 18 slopes downwardly towards the collecting passage 22 so that condensate is absorbed by the members 25, 26 rather than running back into the combustion chamber.
Patent GB-1250301-A (GB)
IPC: B23B49/00
Filed: 1970-01-07
Abstract: 1,250,301. Drill stops. AVILDSEN TOOLS & MACHINES Inc. 7 Jan., 1970 [15 July, 1969], No. 712/70. Heading B3C. A stop for positioning on a drill comprises a housing consisting of two parts 18, 20 and a collet 31. The two parts are assembled together with the collet between them and the stop is then placed on a drill and the parts 18, 20 screwed together so that finger-like end portions 35, 37 are forced inwards by tapered end walls 43, 45 to grip the drill. Both the parts 18, 20 and the collet may be made of a plastics material.
Patent GB-1251024-A (GB)
IPC: F03C1/007
Filed: 1967-11-07
Abstract: 1,251,024. Hydraulic reciprocating pumps. PROGRESS ENGS. Ltd. Feb.6, 1969 [Nov.7, 1967] No.50551/67. Heading F1A. In a pumping apparatus a single acting sludge pump 10 is driven by a double-acting ram 14 which is being supplied by a variable stroke pressure compensated hydraulic pump 22. The pump 22 is driven by an electric motor 24 and has a pressure adjusting screw 22a and a volume adjusting screw 22b. A four way valve 34 is provided between the hydraulic pump 22 and the ram 14 and is operated by a pilot valve 46 to alternate pressure between either side of a piston (not shown) actuating the ram 14. An adjustable flow control valve 40 may be installed in either of the conduits 42, 44 to give the desired rate of output on the downstroke of the pump 10.
Patent GB-1251405-A (GB)
IPC: A23N7/02
Filed: 1969-07-22
Abstract: 1,251,405. Machine for peeling fruit &c. MAGNUSON ENGS Inc. July 22, 1969 [Aug. 2, 1968], No.36861/69. Heading A4C. A machine for peeling vegetables or fruit by abrasion comprises a hollow cylinder (11), Fig. 1. (not shown) mounted rotatably about a horizontal axis in a frame 10, the inner wall of the cylinder being formed by a plurality of parallel horizontal peeling rolls 16a, 16b of uniform diameter, along their lengths the distance between the longitudinal axis of the cylinder and the nearest point of each roll varying around the periphery thus forming horizontal recesses parallel to the longitudinal axis of the cylinder. The rolls 16b are located between the rolls 16a which are of greater diameter and the two sets of rolls are driven at the same rotational speeds and therefore there is a difference in their respective peripheral speeds. The articles to be peeled are fed in at one end of the cylinder and are propelled by the screw conveyer 19; they tend to be held in the recesses between the rolls and are peeled by the action of the surfaces of the rolls.
Patent GB-1251514-A (GB)
IPC: B65H69/06
Filed: 1968-10-28
Abstract: 1,251,514. Splicing strands; hand tool. TECHNISERVICE CORP. 28 Oct., 1968, No. 51078/68. Headings D1F and D1W. Strands are spliced by juxtaposing the strands side-by-side in a chamber and rotating a fluid circumferentially around the strands whilst restraining movement of the strands along the chamber. The splice may be in the form of a false-twist. The strands can be spliced by a hand tool which has a pistol-type air blowing device which can blow air into the chamber mounted transversely on its barrel. The pistol may sequentially supply both hot air and adhesive to the splice. The splice strands can be drawn and crimped.
Patent GB-1251599-A (GB)
IPC: G03G15/045
Filed: 1969-01-28
Abstract: 1,251,599. Electrophotographic element. KATSURAGAWA DENKI K.K. 28 Jan., 1969 [1 Feb., 1968], No. 4793/69. Heading H1K. An electrophotographic element comprises a photoconductive vapour-deposited layer of selenium-tellurium alloy, at least one insulating layer bonded to the photoconductive layer and a conducting layer on the photoconductive layer opposite the insulating layer, at least the conducting or the insulating layer being transparent. In the embodiment a glass substrate having a transparent gold layer thereon has a layer of Se-Te alloy containing 15 mol % Te deposited thereon and a transparent polycarbonate layer applied to the alloy layer. The element is used in an electrophotographic process of the type described in Specification 1,120,123 (see Division G2).
Patent GB-1252011-A (GB)
IPC: F27B15/00
Filed: 1968-12-05
Abstract: 1,252,011. Gas-solid heat exchangers. FRIED KRUPP G.m.b.H. 5 Dec., 1968 [5 Dec., 1967], No. 57881/68. Heading F4U.  Granular or powdered material is heat treated whilst passing downwardly in countercurrent to a more rapidly flowing up gas stream, through serially connected superposed treatment chambers 1. Baffle means; in the form of inclined tubular extensions 8 are located adjacent the lower ends of the openings 2 interconnecting adjacent treatment chambers 1. Cyclone separators may be provided at the upper outlet of the topmost treatment chamber.
Patent GB-1252036-A (GB)
IPC: H03K19/0944
Filed: 1969-08-15
Abstract: 1,252,036. F.E.T. logic circuits. TOKYO SHIBAURA ELECTRIC CO. Ltd. 15 Aug., 1969 [20 Aug., 1968], No. 40908/69. Heading H3T. An exclusive OR circuit consists of two F.E.T.'s 3, 4 interconnected as shown in block 1, Fig. 1, and inverters such as for example F.E.T.'s 6, 7 feeding inputs a, b to the sources A, B of the F.E.T.'s 3, 4, there being impedances, such as F.E.T.'s 5, 8, 9, respectively connecting the inputs and output S of block 1 to a supply voltage E. The circuit is integrated; and the use of the inverter stages is said to reduce the risk of erroneous operation when several F.E.T. circuits 1 are integrated on the same chip and have consequently similar threshold voltages which are comparable with the sum of the voltage drop across a preceding F.E.T. and its input source voltage.
Patent GB-1253058-A (GB)
IPC: E06B3/70
Filed: 1968-11-01
Abstract: 1,253,058. Door and side panels. METALLWERK MERKUR G.m.b.H. 1 Nov., 1968 [11 Jan., 1968], No. 51943/68. Heading B7B. [Also in Division E1] An open-ended rigid hollow flat panel or wall structure forming the walls or doors of a truck is formed of two identical separable interlatching plate walls A, B typically of light metal or plastics. Each plate wall is formed by first and second end sections 1, 3 and a middle section 2 which engage one another along their longitudinal margins, the middle section consisting of one or more plate members each provided at one longitudinal margin with a tubular portion 22 and at the opposite margin with a complementary recessed portion 23, one longitudinal margin of a first end section 1 having such a recessed portion 9 and one longitudinal margin of a second end section 3 having such a tubular portion 30 while the other opposite margins of the two end sections are formed as panel margin closure elements, the plate wall middle and end sections being adapted to form articulating latching joints with one another and including stops which limit the articulating movement so that when assembled they form a flat wall, and when the two plate walls are interlatched they prevent such articulating movement, the middle and end sections also being provided with further interengaging latches which hold the plate walls together to form the panel or wall structure. As shown, the end walls 7, 35 of the two end sections 1, 3 internest when the two walls A, B are engaged by successive movements indicated by arrows S, K, the complementary tubular and recessed portions extending across the panel interior to space the walls and strengthen the panel which is held against unlatching by pins or screws passed through members 6, 36.