baber/WOPTO huggingface dataset:
Patent GB-533775-A (GB)
Title: Improvements in or relating to pumps
IPC: F04B15/02
Filed: 1939-07-17
Abstract: 533,775. Gravity feed pumping apparatus. WILTON, T. O. July 17, 1939, No. 20713, [Class 102 (ii)] In gravity feed pumping apparatus, particularly suitable for hot corrosive liquids, the liquid is discharged by means of a measured quantity of compressed air, steam, or other vapour, under the control of a measuring device and a rotary distributing valve. In the form shown, three cylinders 1, 2, 3 are in permanent communication with valve boxes 5, 6, 7 by means of openings 45, the valve boxes having non-return valves 46 communicating by pipes 8, 9, 10 and a common feed pipe 14 with a feeding column 15 having a level indicating and controlling device 49. The valve boxes have apertures 47 and non-return valves 48 communicating by pipes 11, 12, 13 leading to a common discharge pipe 16. In turn, the cylinders 1, 2, 3 are supplied with steam from surrounding jackets 17, 18, 19 by means of a rotary valve 53 in a distributing valve box 24 having an exhaust pipe 40 and ports 28, 29 (not shown), and 30 leading to necks 20, 21, 22 on the cylinders. The feeding column may be the distributing column of the plant described in Specifications 424,645 or 472,541, [both in Group III], whilst the steam may be introduced through a calibrated diaphragm in the form of live steam, or generated by injecting into the pump a small measured quantity of water or an aqueous solution of a reagent which neutralizes the acidity of the liquid being pumped.
Patent GB-1146236-A (GB)
Title: Friction clutch having centrifugally operated ball valve means
IPC: F16D43/284
Filed: 1967-05-04
Abstract: 1,146,236. Friction clutches. TWIN DISC CLUTCH CO. 4 May, 1967 [5 May, 1966], No. 20754/67. Heading F2C. In an hydraulically operated continuously slipping friction clutch of the type described in Specification 1,146,234, wherein the speed of the clutch input or output member is maintained constant by a valve D which varies the pressure supplied to the clutch engaging servo C1 in response to centrifugal force and an opposed control pressure, the valve is a ball valve. As shown, pressure liquid supplied through a duct 1 acts on the ball valve D in opposition to centrifugal force and the valve meters the liquid to the servo chamber C1. An orifice F continuously bleeds the chamber C1 so that when the valve D is closed the clutch engagement is reduced. In order to maintain the valve ball D small an additional ball D1 having the necessary mass to provide the required centrifugal force acts directly (Fig. 3, not shown) or through an intermediate ball d on the valve ball D. In Fig. 4 (not shown), the required centrifugal force is reduced by supplying the control pressure to an additional ball (d2) which acts through the ball (D1) on the valve ball (D) in opposition to the control pressure acting directly thereon. In Fig. 5 (not shown), the servo chamber (C1) is continuously supplied with pressure liquid through an orifice (F) and the valve (D) controls the exhaust from the chamber. In Fig. 6 (not shown), the pressure supply (2) to the servo chamber (C1) which is controlled by the valve (D) is independent from the control pressure (1) acting on the valve. In Figs. 7 and 8 (not shown) the valve D is carried by the input member and a speed increase of the input member causes increased clutch engagement and thus additionally loads the input member to maintain its speed constant. In Fig. 1 (not shown), the clutch drives the input member of a torque converter in series therewith.
Patent GB-281006-A (GB)
Title: Improvements in or appertaining to telephone repeater systems
IPC: H04B3/20
Filed: 1926-08-23
Abstract: 281,006. Hey, E., (Siemens & Halske Akt.- Ges.). Aug. 23, 1926. Two-way repeating systems. - In an echosuppressor circuit of the kind in which the return path of the repeater is rendered inoperative by connecting a disabling potential to the grid of the amplifier therein, the voice currents, after being amplified by a valve A, Fig. 3, are rectified by means of a two-electrode valve or a threeelectrode valve R with the grid and anode connected together, and the disabling grid potential for the amplifier V is obtained across a resistance r<1>. This avoids the use of a special battery in the anode circuit of the valve. The grid of the valve A, instead of being connected to one of the filament leads, may be connected to a biassing battery and to an adjustable point in the resistance r<1>. A further resistance r<2> and condensers c<1>, c<2> are inserted in the output circuit of the rectifier R, in order to make the operating time smaller and the after-functioning period greater than the time of transit of the echo currents to the disabled point. Fig. 5 shows a.n arrangement in which a common grid battery is used for a group of amplifiers V<1>, V<2>, while the disabling potentials are obtained across individual resistances r<1>, r<2>.
Patent GB-332051-A (GB)
Title: Improved method of manufacturing profiled metal pieces, such as metal plates, strips or the like
IPC: B44B5/00
Filed: 1929-07-08
Abstract: 332,051. Seiferth, H. June 27, 1929, [Convention date]. Rolling.-A method of rolling, strips &c. in which deep projections or depressions are required. A table c is reciprocated under a roll a by means of a rack d and pinion e. The required profile is formed on the table and the work g to be rolled is fed at an angle to the table. The thrust of of the rolling is taken by a roll f. The roll a consists of an annular ring i pressed against a conical collar k on the shaft l by another conical collar m. The profile may be formed on the roll a as well as on the table c.
Patent GB-807901-A (GB)
Title: Improvements in or relating to the stabilisation of phenols
Inventor: CLOUGH HARRY
Filed: 1956-07-06
Abstract: A composition comprises at least one monohydric phenol which is susceptible to atmospheric oxidation resulting in the formation of objectionable odour and/or colour and an effective amount of a stabilizing compound present to an extent of less than 5 per cent by weight of the said phenol, the said stabilizing compound having the structure A-X-B, A and B being either identical or non-identical groups in which X is an aliphatic hydrocarbon radical and A and B are radicals having the structure <FORM:0807901/IV (b)/1> in which R1 is hydrogen or a substituted or unsubstituted alkyl group or X is an aliphatic or aromatic hydrocarbon radical and A and B are radicals having the structure <FORM:0807901/IV (b)/2> in which R2 is a substituted or unsubstituted alkyl or aryl group, with the exception that in the case in which X is an aliphatic radical A and B shall not both have the structure <FORM:0807901/IV (b)/3> where R2 is an aromatic nucleus having an hydroxyl group attached to the nucleus in a position adjacent to the -CH = N- group.  Phenols specified include phenol, phenylphenols, cresols, xylenols and their further alkylated products.  The example relates to the stabilization of 4-methyl-2,6-di-tert.-butylphenol by means of dibenzylidene ethylene diamine, disalicylidene paraphenylene diamine, b -hydroxyethylethylenediamine, disalicylidene orthophenylene diamine, 1 : 2 - bis - (21 - hydroxybenzylamino) ethane, ethylenediamine, di - para - hydroxybenzylidene ethylenediamine, di - isobutylidene - ethylene diamine and 1 : 5 - diaminopentane.  Stabilizing compounds in which the radicals A and B are of the type <FORM:0807901/IV (b)/4> may be obtained by condensing a primary amine and an aldehyde or derivative thereof and stabilizing compounds of the kind in which the radicals A and B are of the kind <FORM:0807901/IV (b)/5> may be obtained by reduction of such condensation products.
Patent GB-478891-A (GB)
Title: Improvements in or relating to means for giving protection to electric cables against mechanical damage
IPC: H01B7/24
Filed: 1936-07-29
Abstract: 478,891. Cable-end sleeves. GENERAL ELECTRIC CO., Ltd., and BUCKLEY, S. July 29, 1936, No. 20999. [Class 36] The insulation 5 at the end of a cable having a flexible armouring 4 consisting of a metal tape wound into a tube, one edge of the tape being formed with a channel into which the other edge projects, is protected against damage by the edge of the tape by a wire helix 1 having an end 3 which is screwed into the armouring between the latter and the insulation. The end turns of the helix remote from the armouring may be soldered together and the extremity of the armouring may be soldered to the helix.
Patent GB-516325-A (GB)
Title: Improvements in and relating to sorting and grading machines
IPC: B07B13/04
Filed: 1938-07-15
Abstract: 516,325. Sorting fruit or vegetables. CARTER, S., and CARTER, N. July 15, 1938, No. 21039. [Class 117] The apparatus comprises two diverging supports 6, which may be stationary bars or endless belts, and a conveyer 5 with apertures 5<1> in which the articles to be graded are placed for conveyance over the supports. The apertures are of pear shape as shown, or of triangular shape with the narrow end in alignment with one support and the wider end moving inwardly across the other. Brushes are provided to position the articles against the small ends of the apertures, and overhanging brushes are provided to prevent accumulations of the articles in more than a single layer. The articles are delivered from a hopper 2, by a wide conveyer 1, which may be used as a picking belt, and delivered to a transverse conveyer 4, consisting of two spaced belts or an apertured belt which functions to eliminate the undersized articles.
Patent GB-960870-A (GB)
Title: Angler's fishing float
IPC: A01K93/00
Filed: 1960-06-16
Abstract: 960,870. Fishing floats. J. T. PETERS. May 26, 1961 [June 16, 1960], No. 21110/60. Heading A1A. A ring for attaching a fishing line to a wooden stemmed or plastic or quill float comprises a body having a first aperture 17 adapted to be pressed over an end of the float and a second aperture 19 through which a loop of the line is passed and then over the end of the float. The body is moulded from a plastic material. In another embodiment the ring is formed by a coil of brass wire and one turn of the coil is enlarged to form the second aperture. In still another embodiment the ring is formed by two unequal coaxial loops of brass wire joined by a semi-circular brass wire which forms with the float the second aperture. The Provisional Specification states that the ring may be secured by a waterproof cement or by paint or by varnish and that the ring may be made of nylon and that a ring may be inserted in a plastic float at moulding.
Patent GB-1390662-A (GB)
Title: Sintered ferrous machinery components and process for their  manufacture
IPC: C22C33/02
Filed: 1972-05-05
Abstract: 1390662 Sintering ferrous powders ASSOCIATED ENG Ltd 1 May 1973 [5 May 1972] 21111/72 Headings C7A and C7D Machinery components are produced by sintering and hot-forging a ferrous powder containing 12 to 13% by weight of chromium and 0.5 to 2.5% carbon. Alternatively, a chromium-containing sintered component can be carburized before or after the hot-forging. The ferrous material may also contain:- nickel, vanadium, tungsten or molybdenum up to 2% manganese and/or cobalt up to 2% titanium up to 1% Typical components produced are loose cams of internal combustion engines.
Patent GB-1039696-A (GB)
Title: Process for photographic reproduction
Inventor: BENSON BRYAN PHILLIP
IPC: G03F1/54
Filed: 1965-05-19
Abstract: 1,039,696. Photographic reproductions. BUCKBEE-MEARS CO. May 19, 1965,No. 21113/65. Headings G2A and G2C. A method of improving photographic reproductions of a continuously repetitive symmetrical pattern of dots on a photographic plate comprises the steps of photoprinting the image pattern on to a sensitized film; shifting the plate in its plane with respect to the film to a position in which substantially all of the plate pattern overlies substantially all of the previously photoprinted pattern on the film; photoprinting the shifted image of the plate on to the film; and developing the photoprinted pattern on the film.
Patent GB-496199-A (GB)
Title: The manufacture of catalysts
IPC: B01J23/70
Filed: 1938-01-28
Abstract: Metallic catalysts, e.g. iron, cobalt, copper and particularly nickel are obtained by suspending in oil the metal carbonate together with a carbonate, hydroxide or oxide of an alkali or alkaline - earth metal, preferably equivalent to 0,1-2,0 per cent of sodium carbonate based on the metal content of the metal carbonate and reducing it with hydrogen, preferably at 210-230 DEG  C.  The metal carbonates may be precipitated with excess of alkali or similar carbonate which is then incompletely washed or the precipitate may be washed thoroughly and the requisite amount of alkali or similar compound added either in solution or in the dry form; the mixture is preferably dried before suspending in the oil.  The catalysts may be used for the hydrogenation of oils.
Patent GB-1531287-A (GB)
Title: Method for making glass
IPC: C03C13/00
Filed: 1976-05-21
Abstract: 1531287 Forming glass melts for fibres OWENSCORNING FIBERGLAS CORP 21 May 1976 21128/76 Addition to 1508167 Heading C1M Glass fibres consisting of:- an< are made by forming a first melt consisting of:- SiO 2  50-70%, Al 2 O 3  5-20%, CaO 5-30%, Na 2 O 0-10% and Fe 2 O 3  0-2% mixing therewith a melt consisting of:- SiO 2  0-20%, B 2 O 3  40-90%, F 2  0-10%, Na 2 O 0-10%, Al 2 O 3  0-20%, CaO 0-50%, MgO 0-10%, TiO 2  0-10%, Fe 2 O 3  0-2% and residual oxides of the form RO + R 2 O 3  (e.g. of alkaline earth metals or transition elements not otherwise specified (such as Sr + Cr) 0-5%, homogenizing the melt and then forming it into fibres. The process may be carried out as disclosed in the parent Specification to which a disclaimer is inserted in the present Specification.
Patent GB-862898-A (GB)
Title: Improvements in sheets or composite sheets for use in building and similar purposes
IPC: E04G21/28
Filed: 1958-07-02
Abstract: 862,898. Awnings. BERRY, F., and PAYNE, S. H. July 1, 1959 [July 2, 1958], No. 21139/58. Class 20(1) A sheet of transparent polythene A is used to shield building operations by fastening its welded edges a to ladders placed against the building by means of cords b tied to dowels B inserted within the edges a. In addition a pair of split rings B1, one on each side of the sheet, may be used for fastening further cords b thereto.
Patent GB-893853-A (GB)
Title: Improvements in induction motor rotors
IPC: H02K17/18
Filed: 1958-07-02
Abstract: 893,853. Making induction motor rotors; angular bending. LAWRENCE SCOTT & ELECTROMOTORS Ltd., and RAMSDEN, D. July 2, 1958, No. 21252/58. Classes 83 (2) and 83 (4). [Also in Group XXXV] The winding bars of an induction motor rotor are given a particular shape at the core ends by two forming operations. In the first a continuous length of bar is looped back on itself to provide two parallel limbs 4 by means of a pipebending machine, not shown, comprising a disc having two drums, one of which is coaxial with, and the other of which is angularly movable relatively to, the disc; the bar is passed between the drums and the disc is rotated by an hydraulically operated rack and pinion. Then the looped end 5 and the limbs 4 are placed in vices 7 ... 9 of a turn-forming machine, Fig. 11, whereupon the latter vices are pneumatically or hydraulically operated to displace the limbs 4 laterally with respect to the looped end 5. Specification 494,660 is referred to.
Patent GB-852434-A (GB)
Title: Improvements in or relating to combined spotting pens and counting devices
IPC: B43K29/08
Filed: 1958-07-03
Abstract: 852,434. Counting-apparatus. MAUSER, K. J. July 3, 1958 [July 17, 1957], No. 21369/58. Class 106 (1). [Also in Group XV] Means for marking and counting articles comprises a marking pen, a holder in which the pen is axially movable, a mechanical counter attached to the holder and operable by axial movement of the pen, a hand-grip for the holder and means associated with the grip for operatively connecting the pen and the counter. A reservoir pen 1 has a felt marking tip 2 and a cap 3 into which the rear end of the pen is fitted preparatory to use. A pistol grip 4 has mounted thereon a sleeve 6, in which the cap 3 is slidable, and a mechanical counter 7. The counter 7 is actuated by an arm 8 which advances the counter by one unit each time it is pressed inwards. The arm 8 is connected to the cap 3 at 10 and is biased outwards by a spring 17. Thus when an article is marked with a spot by the felt tip 2 the cap 3 is pushed backwards in the sleeve 6 and the counter 7 is actuated. The counter cannot be operated until a trigger 12 is pulled and the sear 14 thereof is moved out of engagement with an abutment 15 on the arm 8.
Patent GB-1332768-A (GB)
Title: Process for the preparation of 4-halomethyl-coumarins
IPC: C07D311/16
Filed: 1972-05-08
Abstract: 1332768 4 - Halomethyl - coumarins LONZA Ltd 8 May 1972 [3 Sept 1971] 21377/72 Heading C2C 4-Halomethyl coumarins of the general formula wherein X is -Cl or -Br, R 1  and R 4  are each -H or -CH 3  and R 2  and R 3  are each -H, halogen, -OH, -OCH 3  or C 1-4  alkyl, or R 1  and R 2  together form a fused benzene ring and R 3  and R 4  are each -H or -CH 3 , or R 3  and R 4  together form a fused benzene ring and R 1  and R 2  are each -H or -CH 3 , are prepared by reacting diketene with Cl 2  or Br 2  at - 30 to - 10 C. in a solvent which is inert to halogen and immiscible with H 2 SO 4  (e.g. CCl 4 ), immediately reacting the resultant haloacetoacetic acid halide solution with a phenol or naphthol to give the corresponding phenyl or naphthyl ester, treating the latter, without separating the solvent, with concentrated H 2 SO 4  at - 30 to +30 C., separating off the lower sulphuric acid layer from the two phases which form and hydrolysing it with ice/water and finally isolating the precipitated 4-halomethyl-coumarin. Some of the 4-halomethyl-coumarins to be prepared by the present process are stated to be novel: e.g. 4-chloromethyl-coumarin, 4- chloromethyl - 5,7,8 - trimethyl - coumarin, 4- bromomethyl - 5,7 - dimethyl - coumarin, 7,8- benzo - 4 - chloromethyl - coumarin, 4 - chloromethyl - 7 - methoxy - coumarin and 6 - tbutyl-4-chloromethyl-coumarin. Examples 1-6 describe the preparation of many 4-halomethyl-coumarins of the above general formula which are useful as pharmaceuticals.
Patent GB-897700-A (GB)
Title: Improvements in or relating to hydraulic pumps and motors
IPC: F16H39/00
Filed: 1958-07-04
Abstract: 897,700. Reciprocating pumps. BOSCH G.m.b.H., ROBERT. July 4, 1958 [July 6, 1957], No. 21459/58. Drawings to Specification. Class 102(1). [Also in Group XXIX] The valve plate engaged by the end face of the cylinder block of a swash plate pump is mounted so as to follow any tilting movement of the cylinder block and at least the high pressure port is connected to the outlet by a tubular connector the hydraulic forces acting on the valve plate being so arranged that there is no resultant tilting moment on the plate relative to the block.
Patent GB-265086-A (GB)
Title: An improved suspension for combined driving and steering wheels in motor vehicles
IPC: B60K17/30
Filed: 1926-09-01
Abstract: 265,086. Fornaca, G. Sept. 1, 1926. Springs, arrangement of.-Combined driving and steering wheels driven by cardan shafts have their steering swivels each connected to the frame-. by a linkage including two arms pivotally connected to the frame and to the swivel bearing, the arms being so shaped as substantially to enclose the shafts. The steering swivel 6, Fig. 1, is carried by a casing 7 pivoted for steering in a bearing member 9 pivoted at 11 to arms 10 of channel section. The arms oscillate on blocks 14 carried on the frame 18, and are held against the blocks by bolts 12 and springs 13, a lining 15 of frictional material being interposed between the blocks and arms. The shaft 2, enclosed by the arms 10, is connected by a universal joint to a shaft 3 which is mounted in the swivel 6 and is keyed at 4 to the. wheel-hub. The suspension com. prises a transverse spring 20 secured at its centre to the frame and shackled at its ends to the bearings members 9. In the modification shown in Figs. 5 and 6, the suspension springs 20<1> are also enclosed by the arms 10. These springs comprise single plate springs, each secured at one end to the frame and sliding at the other end in a guide 21 carried by one of the arms 10. The springs 20<1> taper in width from the frame towards the wheel.
Patent GB-867552-A (GB)
Title: Improvements in or relating to the measurement of time delay in an electrical signaltransmission
IPC: G01R27/28
Filed: 1959-06-23
Abstract: 867,552. Circuit delay-time measurements. WAYNE KERR LABORATORIES Ltd., and GOURIET, G. G. Feb. 25, 1960 [June 23, 1959], No. 21519/59. Class 37. Apparatus for measuring the time-delay inherent in an electrical system comprises a pulse generator 10 feeding a train of short duration pulses to the system 13 under test, a sawtoothwaveform generator 18 synchronized to the train of pulses, and means 15 for multiplying together the respective outputs of the system 13 and generator 18 to provide a D.C. output, the Specification showing that the datum level of the sawtooth waveform gives an indication of the. delay introduced by system 13 when the average output of 15 is zero. The device 15 may be a balanced ring modulator or a device employing the Hall effect, and its output may be supplied to a slow-acting direct-voltage or current meter 22 to indicate the mean output. In operating a preferred embodiment of the apparatus, pulses from generator 10, after passing through a network 11 introducing a short time delay to ensure that the linear portion of the sawtooth waveform is reached by the time the pulse reaches system 13, are applied directly to device 15 via switches 12, 14, and the datum level of the sawtooth waveform is adjusted by varying resistor 23, potentiometer 20 being set to a zero calibration mark, until meter 22 indicates zero. The datum level at this juncture corresponds to the mean epoch of the input pulse. Pulses are nextsupplied to the system 13 and potentiometer 20 is adjusted to alter the datum level until meter 22 again indicates zero. The setting of potentiometer 20 then represents the difference between the mean epoch of the input pulse and the mean epoch of the output signal of system 13, i.e. the delay introduced:by system 13. This method of measuring the time delay is said to be independent of frequency and the shape of the input pulses. In another preferred embodiment, Fig. 2 (not shown), the output of 15 is supplied to a high-gain amplifier the output of which controls the datum level of the sawtooth waveform. The feedback system thus provided is self-balancing, and the feed-back voltage from the amplifier is a measure of the time delay introduced by system 13.