baber/WOPTO huggingface dataset:
Patent GB-725941-A (GB)
Title: Improvements in or relating to mechanical handling appliances
IPC: B66F9/18
Filed: 1953-01-22
Abstract: 725,941. Grab attachments for fork lift trucks. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Jan. 22, 1953 [Jan. 24, 1952], No. 1892/53. Class 78 (3) and 78 (4). [Also in Group XXII] In a fork lift truck, grab arms attached to the lifting carriage are constructed from flexible laminated sheets which are pre-stressed to cause them to converge when disengaged from the load, and the outer ends of the arms are made more flexible than the inner ends. When used for lifting a drum the sides of the drum are engaged by the arms at the points where the pre-stressing commences and thus the ends of the arms remain converged to prevent tilting of the drum, the arms being provided with horizontal slots extending longitudinally thereof to accommodate rolling hoops on the drum. When used to lift a flat sided package the extra flexibility at the ends of the arms permits them to move into alignment with the inner portions of the arms and to grip the package with a substantially uniform pressure. The arms are each constructed from two or more laminations 21, 22 which are first welded together at 26 and are then further connected by continuous welds along the top and bottom edges as far as line 30. Next a member 31 is inserted between the arms and the end portions are moved into the position shown by a clamp 32, the remaining portions of the edges of the laminations are then tack-welded together so that when the clamp 32 and member 31 are removed the arms remain in the shape illustrated. The extra flexibility at the ends of the arms is obtained by reducing either the depth or thickness of the arms at their free ends. A layer of resilient material is provided on the gripping faces of the arms.
Patent GB-801050-A (GB)
Title: Improvements in or connected with carrying trays
Inventor: SILBERMAN FRED
IPC: A47G23/06
Filed: 1955-01-21
Abstract: 801,050. Carrying trays. MAYER (LONDON), Ltd., L. S. Jan. 21, 1955, No. 1909/55. Class 128 A carrying tray has a tray base 1, a hooplike support 2 hingedly fitted to the base, e.g. by screws 3, and a handle 5 connected to the support in a manner enabling free swinging or rotational movement of the tray in relation to the handle. The support may be held upright by engaging studs 9 fitted on plates 4.
Patent GB-588853-A (GB)
Title: Improvements in and relating to machines for making crisp bread
IPC: A21C3/00
Filed: 1945-01-26
Abstract: 588,853. Bread-making. LUNDSTROM, K. E. Jan. 26, 1945, No. 2078. Convention date, Feb. 14, 1944. [Class 28 (i)] In passing a dough strip supported on a clothbetween a support roll 4 and a pricking roll 2, the peripheral speed of the pricking roll 2 is less than the speed of the dough-strip cloth and the support roll 4. The dough is thereby improved by stretching and is freed more readily from the pricking pins. 'The rolls 2 and 4 are coupled together for driving by a friction disc 3. A feed hopper 11 distributing roll 12 and brush rolls 13 and 14 clean and distribute dry flour on the pins of the pricking roll as described in Specification 588,852.
Patent GB-274732-A (GB)
Title: Improvement in automobile bumpers
IPC: B60R19/14
Filed: 1927-01-24
Abstract: 274,732. Marks, E. C. R., (C. G. Spring & Bumper Co.). Jan. 24, 1927. Wheel-guards, obstruction removers, and safety appliances.-A bumper structure comprises a pair of fender guards 6 and a bumper section 12 extending across the space between the fender guards and removably connected 'thereto. A rear plate 1 is connected to supports 2 from the vehicle and has each end bent round to form a socket for a pin 8 to which one end of the upper and lower plates 6, 7 of the fender guard is attached, the other end of each plate 6, 7 being similarly supported by a pin 10 carried by a strut 9 from the plate 1. The bumper section 12 has a plate 13 hinged at each end which is secured to the bars 6, 7 by a back plate 15 and bolt 16, the back plate being of a width less than the width of the bar space between the bars 6, 7 so that it may be passed therethrough and turned when the bar 12 is to be secured to the fender guards. Spare wheels 11 may be placed between the bars 1, 12 which are accessible when the bar is swung outwardly as shown in dotted line in Fig. 2.
Patent GB-845868-A (GB)
Title: Improvements relating to centrifugal drying machines
Inventor: FARRER SYDNEY
IPC: D06F49/06
Filed: 1956-01-21
Abstract: 845,868. Centrifugal drying machines. SIMPLEX ELECTRIC CO. Ltd. Jan. 15, 1957 [Jan. 21, 1956; June 23, 1956], Nos. 20195/56 and 19519/56. Class 34(2) In order to prevent a centrifugal drying machine moving across the floor during use it ds supported on a combination of wheels and feet. As shown, two rubber feet 16, Figs. 1, 2, are secured to lugs on the body and wheels 21, 21 are mounted at the ends of a beam 22, Fig. 5, which, at its mid-point, supports the body on a rubber bush and is retained by a bolt 29. Rotation of the beam about the bolt is prevented by stationary stops 37, 37 and, if desired, soft rubber inserts 26 may be placed between the ends of the beam and bosses on the body. By this arrangement, the beam is permitted to pivot slightly in a vertical plane to accommodate uneveness in the floor. Preferably, as shown in Fig. 2, the pivot bolt 29 and the centres of the feet 16 are located at the apices of a triangle, the incentre of which lies on the vertical axis of the machine.
Patent GB-845244-A (GB)
Title: Improved method of and apparatus for ultrasonic testing of articles and materials
IPC: G01N29/12
Filed: 1958-01-22
Abstract: 845,244. Ultra-sonic inspection devices. GENERAL MOTORS CORPORATION. Jan. 22, 1958 [Jan. 31, 1957], No. 2164/58. Drawings to Specification. Class 40(7). For detecting resonances in an article to be tested, a frequency-swept ultrasonic oscillator feeds a transducer mounted in a tank of liquid in which the article is immersed. The output of a receiving transducer mounted in the liquid, on the opposite side of the article, is fed to the Y-plates of a cathode-ray tube, the X-plates of which are fed from the sweep-signal generator, so that at resonant frequencies large Y-deflections occur. The X-scale may be calibrated in terms of article thickness since the resonant frequency is proportional thereto, other physical properties being constant. Continuous testing of sheet material passing through the tank may be effected.
Patent GB-284604-A (GB)
Title: Improvements in or relating to synchronization
IPC: H04N5/067
Filed: 1928-01-23
Abstract: 284,604. Lorenz Akt.-Ges., C. Jan. 31, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. Synchronous movements.-For the purpose of synchronizing picture telegraphs, printing telegraphs, or clocks, or for standardizing tuning forks or marking time in oscillographs, synchronizing signals of a single wave-length are broadcast by line or wireless, or through a mixed line and wireless system, from a central station which thus controls all the transmitters and receivers of the system. The signals may be relayed on the same wave-length from relay stations. The signals may be characterized by a frequency which is a multiple of that used in. synchronizing clocks.
Patent GB-552521-A (GB)
Title: Improvements in and connected with boxes for housing electric couplings, fuses and the like
IPC: H02G3/16
Filed: 1941-10-06
Abstract: 552,521. Automatic catches. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., HILL, W. E., MORGAN, R. W., and WINTLE, T. D. G. Oct. 6, 1941, Nos. 2218/42 (Divided out of 552,502), and 2219/42 (Divided out of 552,513), [both in Group XXXVI]. [Class 44] [Also in Group XXXVI] A box for housing fuses or couplings connecting various cables if loosely laid in conduit tubes e, comprises a base a and cover b furnished with slots with which the conduit ends can be interlocked by a lateral movement. The base and lid are of similar construction and have gaps c in their rims which register to form circular apertures ; concentric with these apertures are the circular portions 12 of keyhole shaped slots 1, the open end 1<1> of which is tapered to form a throat through which a resilient grommet d', constructed as described in Specification 552,502, [Group XXXVI], is forced and snaps into the circular part 1<2>. These slots are formed in a liner strip k which also has openings n which receive the hooked ends m' of spring catches m to secure the cover. A screw stud fixed in the catch m carries a nut r which locks the catch when screwed up and when unscrewed can be pressed inwards to release the catch. A channel shaped depression s with holes t for fixing screws leaves a central space recessed in the outside of the box to accommodate the heads of screws securing the internal fittings. The holes t may be closed by knockout discs, and the holes c by sheet metal inserts.
Patent GB-686727-A (GB)
Title: Manufacture of new cyclohexanols
IPC: A61K31/00
Filed: 1951-01-29
Abstract: 2 - Cyclohexyl - 1 - (31 - piperidinopropyl) - cyclohexanol and the 2-cyclohexylidene-compound, are made by the action of magnesium, activated if necessary, on N-[1-halogen-propyl-(3)] piperidine, followed by reaction with 2-cyclohexyl- or -cyclohexylidene-cyclohexanone, the product from the latter being subsequently reduced, if desired.  Salts of the bases are obtained, which may be converted into other salts.  In examples, the Mg compound from N-(1-chloropropyl-3)-piperidine is formed and reacts with 2-cyclohexyl or 2-cyclohexylidene-cyclohexanone, and the product from the former reactants is also obtained by reduction of that from the latter. Specification 565,745 is referred to.
Patent GB-698899-A (GB)
Title: Improvements in thermionic valve amplifiers capable of amplifying direct electric currents or voltages
Inventor: FROST-SMITH EDWARD HILARY
IPC: H03F3/36
Filed: 1951-01-30
Abstract: 698,899. Magnetic amplifiers. ELLIOTT BROS. (LONDON), Ltd. Jan 29, 1952 [Jan. 30, 1951], No. 2349/51. Class 40 (iv). [Also in Group XL (c)] In a magnetic inverter, a D.C. potential is fed over a filter 29, 35, 28 to an input-output winding 16 arranged as a common winding over two primary windings 15, 15a on the central limbs of E-shaped cores energized from an A.C. supply 23 over resistors 17, 17a and 18. With no polarizing current flowing, the e.m.f's induced in winding 16 by balanced windings 15, 15a is zero, but with a polarizing current even harmonics appear in the winding 16 with one or other of the halfcycles showing a greater peak. The winding 16 is shunted by a low impedance network 30, 31 which may feed an A.C. amplifier 33, 34 (see Group XL (c)). In order to reduce odd harmonics, the windings 15, 15a are balanced by adjusting the resistors 17, 17a, a final zero adjustment being made by potentiometer 27 connected to balancing winding 24. In a modification, Fig. 4 (not shown), the output is taken from winding 17 or alternatively Fig. 5 (not shown) through a transformer from both windings 17, 17a. The adjustment may be made by sliding one of the laminations 14, Fig. 2 (not shown), or by the use of a variable resistor across one winding, Fig. 3 (not shown).
Patent GB-875527-A (GB)
Title: Improvements in or relating to reheat combustion equipment of a gas-turbine engine
Inventor: MURRAY FREDERICK REGINALD
IPC: F23R3/10
Filed: 1959-01-22
Abstract: 875,527. Generating combustion products under pressure. ROLLS-ROYCE Ltd. Jan. 15, 1960 [Jan. 22, 1959], No. 2378/59. Class 51 (1). Reheat combustion equipment of a gas turbine engine comprises a hollow diffuser which is formed with a first frusto-conical portion, in which diffusion of hot gases from the turbine or from a stage thereof occurs, and with a second frusto-conical portion, the apex angle of which is greater than that of the first portion and the smaller-diameter end of which receives hot gases from, the larger-diameter end of the first portion. Means for stabilizing the combustion of reheat fuel is mounted within the second portion of the diffuser. Fig. 1 shows reheat combustion equipment of a gas turbine jet engine, the jet pipe 39 of which constitutes a hollow diffuser according to the invention, comprising a first portion 55 and a second portion 56 and a cylindrical portion 57 downstream of the portion 56. Mounted within the jet pipe is a tubular shield or flame tube 40 which also constitutes a diffuser and comprises a first frustoconical portion 52 of relatively small apex angle and a second frusto-conical portion 53 of greater apex angle, the portion 53 of the flame tube having the same apex angle as the portion 56 of the jet pipe. Downstream of the portion 53 the flame tube comprises a cylindrical portion 54 and then further portions 58, 59, 60 which are spaced apart where they overlap by means of corrugated spacers 61, 62, 63. The upstream end of the frusto-conical portion 52 of the flame tube is corrugated as indicated at 41, the corrugations serving to space the flame tube from the jet pipe so as to provide an annular clearance 42 therebetween. Reheat fuel is injected through perforated pipes 43 so that the whole of it enters within the flame tube 40. A flame stabilizing device 45 is disposed within the second frustoconical portion 53 of the flame tube and comprises concentric V-section rings 46, 47, 48 which are offset axially of each other, the rings being connected by radially extending gutters 49. The outer walls of the rings 46, 47 are extended upstream as indicated at 50, 51 so as to promote radial flow of the gases passing through the flame tube. Ignition of the reheat fuel may be effected by known means, for example by " hot streak " ignition in which excess fuel is injected into the main combustion equipment so as to cause a flame to pass through the turbine to the device 45.
Patent GB-607081-A (GB)
Title: Improvements relating to shock absorbers for motor road vehicles and the like
IPC: F16F7/02
Filed: 1946-01-25
Abstract: 607,081. Shock absorbers. SMITH, F. Jan. 25, 1946, No. 2477. [Class 108 (iii)] A road-vehicle shock absorber comprises a stationary drum 1 secured to the vehicle chassis or axle (not shown) and having a hollow tapered circular interior 3 in which is centrally mounted a stud or bolt 5 upon which fits a bush 6 surrounded by a lubricating bush 7 having a hollow skirted portion 7a housing an anti-friction bearing 8, a spring 11 and nuts 9, 10, a sleeve 12 fitting on the bush 7 and secured to a movable member 13 coupled with the axle or chassis by a cable or similar means (not shown) and having an annular bore, housing a free-wheel mechanism 14, 15 co-operating with a dished cylindrical shoe 21 covered with friction material 22. The freewheel comprises wedge-shaped slots and cooperating rollers 15, in a boss portion 14 of the member 21 which projects into a recess in the member 13. Pressure on the friction element 22 is adjusted by the nuts 9, 10 which act in conjunction with the spring 11, thrust bearing 8 and an indicating scale 23. A space 25 in the member 13 contains lubricant. The shock absorber is preferably adapted to damp the rebound movements of the suspension but alternatively may be applied to the compression movement or to both compression and rebound movements. The operating cable is coiled on grooves 20 and on rotation of the member. 13 in the free-wheeling direction may be wound by spring or weight means (not shown). Co-acting shaped-surfaces may be provided on the friction element 22 and corresponding face of the member 1 and additional friction elements in the form of discs may be provided on the end face of member 21.
Patent GB-1038734-A (GB)
Title: A novel nicotinate ester, the preparation thereof and compositions thereof
IPC: C07D213/80
Filed: 1965-01-20
Abstract: The invention comprises 2,2,6,6-tetrakis-(nicotinoyloxymethyl) cyclohexanol.  It is prepared by reacting a nicotinoyl halide or acid addition salt thereof with 2,2,6,6-tetramethylol-cyclohexanol, preferably using an aromatic hydrocarbon solvent and an acid-binding agent.  The above ester is used to reduce blood cholesterol levels and may be administered orally, parenterally or rectally, tablets, pills, sublingual tablets, capsules, cachets, powders, syrups, elixirs, injectable solutions and suspensions, and suppositories being specified.
Patent GB-1155361-A (GB)
Title: Feed-Back for Hot Wire Anemometer
Inventor: CRAFT DAVID JOHN
IPC: G01P5/10
Filed: 1966-01-19
Abstract: 1,155,361. Measuring fluid-flow electrically. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Jan. 16, 1967 [Jan.19, 1966], No. 2516/66. Heading G1N. In a hot wire anemometer, Fig. 3, the resistance and temperature of the wire W, which is connected in series with a resistor R, are maintained constant by a feedback circuit including an amplifier A, the effect of high frequency noise being reduced by connecting the output of the amplifier A to a high pass filter HPF having a cut off frequency greater than the upper limit of the desired frequency response of the anemometer, and using the D.C. output of a detector D feed from the filter to reduce the input signal to A. An amplifier A1 may be used between the filter and the detector. The heating current supplied by the amplifier is a measure of fluid-flow past the wire W. The amplifier A may be transistorized, and the filter circuit, which gives the anemometer a frequency response upper limit of 100 Kc/s, also compensates for temperature dependent variations in amplifier characteristics. The anemometer may detect pulses in a fluid logic system.
Patent GB-411585-A (GB)
Title: Improvements in or relating to electric switches of the pear and like type
IPC: H01H15/02
Filed: 1933-01-26
Abstract: 411,585. Snap-action switches. MURRAY, H. A., and FITZGIBBON & MURRAY, Ltd., 13, Greek Street, London. Jan. 26, 1933, No. 2517. [Class 38 (v).] A pear switch comprises an insulating body 1 carrying the mechanism, inserted in the casing 2 and held in place by a screw cap 2<a>. The leads 5, 5<a> enter the casing through an aperture 4 and the lead 5 is connected to the upper terminal 6. The lead 5<a> is accommodated in a longitudinal groove 7 in the body 1 and is connected to the lower terminal 6. The casing 2 and the cap 2<a> are formed with annular shoulders 8<a> so that when the cap is screwed in position, the lead 5<a> is not only held by the groove 7 but is clamped between each end of the body 1 and the shoulders 8<a>, thus relieving the strain on the terminals. The terminals 6 are connected by springs 14 to metal balls 13 adapted in the on position to be bridged by a metal portion 10<b> of an insulating push rod 10, shoulders 12 on the body 1 preventing the rod 10 from being pushed too far. In a modification arranged as a through switch, the lead 5<a> passes unbroken through the switch and out of an aperture in the cap, a third lead being connected to the lower terminal.
Patent GB-970921-A (GB)
Title: Power operated tandem master cylinder
Inventor: GARDNER DELBERT JAMES
IPC: B60T13/565
Filed: 1963-01-21
Abstract: 970,921. Servo-operated tandem master cylinders. BENDIX CORPORATION. Jan. 21, 1963, No. 2530/63. Heading F2F. A power operated tandem master cylinder B comprises a housing having a cylindrical bore in which sealingly slide first and second fluid displacement members, for example pistons 20, 40, forming forward and rear fluid displacement chambers 10, 12, the second member 40 being power-operated by a control structure on the forward movement of a control member 106. The control member extends through the second member 40 and projects into the rear chamber 12 such that, on failure of power, the member 106 engages and actuates the first member 20. The control member in normal operation moves relatively to the second member 40 by an amount generally equalling the stroke of the first member 20. In the construction shown, piston 40 is sealed in the cylinder bore by gaskets 56, 66 held in position by ported retainers 46, 68, washers 36, 58, 70 and circlips 60, 72. Hydraulic fluid is supplied to the rear chamber from a reservoir 18 through a port 64 when the second piston 40 in in its retracted position. The fluid pressure servomotor includes a diaphragm 78 clamped at its outer periphery between two portions of the housing 74, 76 and at its inner periphery between a nut 84 and a shoulder 82 of the piston 40. The control member 106 is connected to a push-rod 114 and is slidably mounted and spring-biased in the bore of piston 40. A spring-loaded poppet valve member 98 is sealed in the housing by a diaphragm 102, the valve seat 96 of the poppet co-operating with either an atmospheric valve seat 112 of the control member 106 or a vacuum valve seat 94 integral with the casing 76. Vacuum is normally supplied to both sides of the diaphragm through connections 90, 92 and also from the latter through grooves 126 and a taper of the nut 84. On actuation of the control member 106 the vacuum valve is closed and the atmospheric valve opened, air passing through the poppet and groove 126 to actuate the diaphragm 78 and thus piston 40. Pressurization of chamber 12 operates the first piston 20. When piston 40 is in its furthest forward position the control member 106 may be again moved to engage piston 20 and increase the pressurization of the forward chamber 10. A shoulder may be formed in the bore of piston 40 to co-operate with a shoulder of the control member 106 and thus effect emergency compression in the rear chamber. Connections to the front and rear brakes of a vehicle are usually made to the forward and rear chambers of the master cylinder to provide differential braking with the higher pressure on the front brake cylinder. Specification 939,827 is referred to.
Patent GB-1263443-A (GB)
Title: Improvements in or relating to flow control valves
IPC: F16K1/30
Filed: 1970-01-19
Abstract: 1,263,443. Valves. ASTRO CONTROLS Inc. 19 Jan., 1970 [23 Jan., 1969], No. 2567/70. Heading F2V. The check valve 41 allows filling of a liquefied gas container 11 through a manual shut-off valve 16 and closes in the event of excess return flow through a draw-off connection 31. The valve consists of a cup-shaped body 42 having laterally opening flow ports 51. A disc valve member 44 is carried by a stem 43 slidable in a sleeve 66 which in turn is slidable in a bore 49 in the end of the body 42. The disc is loaded to a rest position spaced away from a seat 37, and determined by a stop 67 on the sleeve, by two springs 43, 45. On filling, the disc moves to the bottom of the cup body to provide full flow through the filling ports 51, and an excess reverse flow through the draw-off connection moves to engage the seat 37. The device reduces the severity of hammering on the seat in the reverse direction.