baber/WOPTO huggingface dataset:
Patent GB-805040-A (GB)
Title: Improvements in hand brakes for motor vehicles, more particularly lorries and omnibuses
IPC: G05G25/00
Filed: 1955-09-30
Abstract: 805,040. Vehicle hand brakes. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. Sept. 30, 1955 [Oct. 6, 1954], No. 27850/55. Class 103 (1). In a hand brake mechanism for taking up the idle movement before the actual brake applying movement during the first short portion of a stroke of the hand brake lever, a spring is connected to the hand brake lever and to the brake linkage and relaxes thereby to remove the brake play during the first portion of a stroke of the hand brake lever. In the embodiment illustrated, a vehicle hand brake mechanism is illustrated in the brake released position wherein a spring 27, secured at one end to coupling member 9 and at the other end to'the chasses of the vehicle, is tensioned. When pawl 3 is lifted out of engagement with toothed segment 6 and hand brake lever 2 is moved in the direction of the arrow 11, toothed segment 7, freely mounted on shaft 1 disposed in the chassis, is taken along by pawl 4 which is urged into engagement with the teeth on segment 7 by spring 5. At the same time abutment 22 secured to hand brake lever 2 is moved away from roller 21, mounted on short arm 20 of lever 17, permitting movement of lever 17 in the direction of arrow 28 to follow the abutment 22 under the action of relaxing spring 27. Arm 23 of lever 17 is, in this example, three times longer than arm 20 and lever 8 is actuated by movement of lever 17 and lever 9 in direction of arrow 28 to move toothed segment 7 under pawl 4 of the hand brake lever to take up the slack in the brake linkage. When the spring 17 has been relaxed the pawl 15 engages the toothed segment 7 and further movement of the hand brake lever 2 in the direction of the arrow 11 causes the pawl 4 to rotate the toothed segment 7 and permit movement of the lever 8 about pivot 1 to actuate brake linkage; bolt 25 moving in slot 24 in coupling member 9 to permit movements of lever 8 without movement of lever 17 and coupling member 9. Normally, only about one-third of the stroke of the brake lever is used up in removal of the brake play; the remainder of the stroke being available for full braking application. However, if the hand brake lever 2 has to be operated again for the purpose of increasing the braking power, the hand brake lever 2 is not moved back up to the point where the pawl 15 is removed from the toothed segment 7, but its backward movement is stopped and reversed before it reaches that point. In this way, the deflection of the toothed segment 7 reached already with the first stroke is increased during the subsequent second stroke beyond the pawl 4, corresponding to the second stroke of the hand brake 2 or part thereof, whereby the pawl 15 again ensures engagement in any position of the segment 7.
Patent GB-1137680-A (GB)
Title: Protective circuit for switching transistors
Inventor: HARBOUR JOHN
IPC: H03K17/082
Filed: 1966-06-22
Abstract: 1,137,680. Protecting transistor circuits. IMPERIAL CHEMICAL INDUSTRIES Ltd. 1 June, 1967 [22 June, 1966], No. 27873/66. Heading H3T. [Also in Division H2] A protective arrangement for a switching transistor 98 feeding a load 100 comprises a further transistor 94 connected across the base emitter circuit and having its base coupled to the collector circuit so that the second transistor shunts the input circuit of the first when the load current is excessive. In addition, means are provided periodically to reduce the voltage supply but to maintain a steady supply to the base of the first transistor so that load current is restored when the fault is cleared. As shown, the periodic reductions are provided by an unsmoothed supply but an interrupter (Fig. 5, not shown) could be used. The switching circuit is controlled through a transistor 82 from a logic current (not shown) and diode 92 blocks bias current flow through the load when transistor 98 is off.
Patent GB-1304677-A (GB)
IPC: C08F2/00
Filed: 1971-06-15
Abstract: 1304677 Oligomers MERCK PATENT GmbH 15 June 1971 [20 June 1970] 28013/71 Heading C2C [Also in Division C3] In a process for the preparation of an oligomer with identical end groups, at least one radical polymerizable monovinyl compound, except unsubstituted olefins with more than two carbon atoms, is reacted with a symmetrical, radical donating azo compound as initiator, said initiator having a half-life of at most 120 minutes at from 60 to 160‹ C., the concentration of the initiator fragments being so adjusted that, upon reaching the desired degree of polymerization of between 1 and 200, a complete chain termination takes place exclusively by initiator fragments. Preferred initiators have the general formula wherein R 1  is an alkyl radical having up to 6 carbon atoms, and the preferred oligomers have the general formula wherein R is a radical fragment derived from the initiator, R 1  is a hydrogen atom or an alkyl radical having 1 to 6 carbon atoms, R 2  is a hydrogen atom or a phenyl or substituted phenyl radical or a radical of the general formula -COOR 3 , -COR 4 , -CHO, -CN, -OR 5  or R 3  is a hydrogen atom, an alkyl radical having up to 18 carbon atoms, which can be intercepted by heteroatoms, a cycloalkyl radical having 3 to 7 carbon atoms or a phenyl or substituted phenyl radical, R 4  is an amino group or a mono- or dialkyl-amino radical, the alkyl groups of which contain up to 18 carbon atoms, a CO-alkyl group, the alkyl groups of which contain up to 18 carbon atoms, or a CO-phenyl radical, the phenyl group of which can also be substituted, R 5  is an alkyl or aliphatic acyl radical having up to 18 carbon atoms and n is an integer from 1 to 200, with the proviso that R 1  is not an alkyl radical when R 2  is a hydrogen atom. In the examples a large variety of vinyl monomers are converted to oligomers using azodiisobutyronitrile, 4,4<SP>1</SP>-azobis - 4 - cyanopentanoic acid, 2,21 - azo - bis- (2-methyl - butyronitrile), and 2,2<SP>1</SP>- azo - bisisobutyric acid ethyl ester and diethyl ester.
Patent GB-238107-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/71
Filed: 1924-11-22
Abstract: 238,107. Rushen, P. C., (Brown-Lipe Gear Co.). Nov. 22, 1924. Operating clutches. -A friction clutch has, between a movable spring abutment and a throwout sleeve, means to compensate for variations in alignment of the shafts or parts of the clutch mechanism. As shown for transmission gearing, a friction disc 9 splined to a driven shaft 5 is pressed between friction plates 4, 15 by a pressure member 14 under the action of a spring 25. The member 14 is accommodated in a recess in the driving fly-wheel 1 and has lugs 16 engaging recesses in a ring 18 bolted to the fly-wheel. The spring 25 presses against abutments 30, 37. The abutment 30 engages levers 31 pivoting on an adjustable ring 18<a> screwed in the ring 18 and pressing against the pressure member 14. The abutment 37 is mounted on a sleeve 35 integral with the member 14. An operating sleeve 26 slidably mounted on the shaft 5 has projection 27 passing through slots 36 in the sleeve 35. A clearance is provided between the sleeves 35, 26 and the projections 27 engage the spring abutment 30 in a selfaligning manner to allow for inaccuracies in the switch mechanism. The sleeve 26 may be in two parts as shown and carries a ball bearing 46, the housing 47 of which engages the arms 43 of a yoke 41 mounted upon shaft sections 42. One of the sections 42 is operated by the usual pedal for moving the sleeve 26 axially to engage or disengage the clutch. The housing 47 has diametrically opposite fulcrum points 48 thrusting against the outer bearing race-ring to permit the housing to rock should the shaft 5 be out of alignment.
Patent GB-718241-A (GB)
Title: Improvements in and relating to bottle washing machines
IPC: B08B3/14
Filed: 1952-11-07
Abstract: 718,241. Filters. SEITZ-WERKE GES. Nov. 7, 1952 [Nov. 15, 1951], No. 28037/52. Class 46. [Also in Group XXIII] A bottle washing machine includes a lye container 11, Fig. 2, and a rotating filter drum 16 positioned in a container 17, for the removal of labels which have become detached from the bottles during the washing process, in which a vertically adjustable wall 13, Fig. 3, is provided between the container 11 and the container 17 for the purpose of guiding the detached labels towards the drum 16. Labels in the container 11 are carried by soaking lye into a container 15, Figs 2 and 3, under the influence of a rotary pump (not shown) and assisted by a deflecting wall 18 are caused to enter the interior of the rotating filter drum 16 having a perforated cylindrical wall. Filtered lye passes from the drum into the container 17 and is thereafter pumped back into the container 11 through a spray nozzle system (not shown). Labels adhering to the interior wall surface of the drum 16 are conveyed to a position above a hopper 19, Fig. 1. Filtered lye pumped to a spray pipe 20, washes the labels into the hopper and thence on to a perforated endless conveyer 21 running over a stationary surface 26 and driven by a drum 22. The drum 22 has a surface which is formed by rods or which is perforated. On reaching the drum end of the conveyer 21, the labels are washed therefrom by cold water supplied to a stationary spray pipe 23 entering the drum, into a collecting container 24 having one wall perforated to allow drainage of water therefrom. Stationary side walls 25, Fig. 3. mounted along each side of the conveyer 21 prevent labels from entering the container 15 but the lye is permitted to return thereto. As shown in Fig. 3, flow of lye from the soaking container 11 is controlled by the gate 13 operable by a lifting device 28 and supported in vertical grooves 27, Fig. 2. In Fig 3 it is assumed that labels have fallen to the bottom of the container 11 and hence the gate 13 is raised to allow the lye and labels to flow thereunder through a passage 14. If the labels float on the surface of the lye then the gate is lowered to allow the lye to flow thereover. Under certain circumstances the gate may be positioned so as to allow liquid to flow both over and under it. The gate may be arranged to be constantly raised and lowered at slow speed when the machine is operating. Alternatively, the central portion of the gate may be fixed and have adjustable upper and lower portions. The wall 18 may be curved instead of straight as shown. The container 24 is shown as separate from the container 15 but it may be integral therewith. In this case the dividing wall 18 is made double with an air gap between its walls to provide heat insulation between the containers 15, 24.
Patent GB-1202166-A (GB)
Title: Process for the preparation of phthalic acid phenylether derivatives
Inventor: GILCH HEINZ
IPC: A01N37/40
Filed: 1968-06-13
Abstract: 1,202,166. Phenoxyphthalic acid esters. FARBENFABRIKEN BAYER A.G. 13 June, 1968 [26 July, 1967], No. 28091/68. Heading C2C. [Also in Division A5] Invention relates to phenoxyphthalic acid esters of the general formula in which R<SP>1</SP> is an electrophilic radical and R 2  and R<SP>3</SP> which may be the same or different denote aliphatic or aromatic hydrocarbon radicals. R<SP>1</SP> may be NO 2 , CN, COOR<SP>4</SP>, SO 2 R<SP>4</SP> or COR<SP>4</SP> group and R<SP>4</SP> may be alkyl or phenyl group. The compounds may be prepared by reacting an alkali metal salt or an alkaline earth metal salt of a hydroxyphthalic acid ester in a polar organic solvent at a temperature in the range of from 50‹ to 200‹ C. with a halogenated benzene derivative which is substituted by at least one electrophilic group. In an example 4-hydroxy phthalic acid was reacted with p-chloro nitro benzene to produce dimethyl ester of 4-(4<SP>1</SP>-nitrophenoxy) phthalic acid.
Patent GB-730104-A (GB)
Title: Inductors for induction heating
Inventor: GIBBS MAURICE GORDON
IPC: H05B6/42
Filed: 1952-11-07
Abstract: 730,104. Induction heating. WILD-BARFIELD ELECTRIC FURNACES, Ltd. Nov. 5, 1953 [Nov. 7, 1952], No. 28160/52. Class 39 (3). An inductor consists of one or more units A, each unit comprising two conductors 1, 2 of copper tubing each wound in a flat spiral with their inner ends joined, the directions of winding of the spirals from the centre to the outside being opposite one another. The free ends of the spirals have water connections 10, and insulation 5-8 is provided. The units may be connected by connections 11, electrically in series or parallel, or series/parallel, and the water supply connections may be similarly arranged.
Patent GB-1396395-A (GB)
Title: Mechanical comparator devices
IPC: B64C13/24
Filed: 1972-06-15
Abstract: 1396395 Yielding couplings HAWKER SIDDELEY AVIATION Ltd 15 June 1973 [15 June 1972] 28167/72 Heading F2U A mechanical comparator device, for detecting an undesirable asymmetric condition in an aircraft wing flap system (not shown) during operation and simultaneously imparting a signal to an appropriate switch or valve shut-off device (not shown) to prevent an adverse situation of aircraft stability and control developing, comprises two sprockets 2, 5, or pulleys, respectively connected by chains, or cables, (not shown) to the port and starboard wing flaps of the aircraft, the two sprockets 2, 5 being connected together by face cam-and-ball torque transmitting means 8, 9, 10 arranged therebetween and loaded axially by a spring 13 which yields on relative rotation of the sprockets 2, 5, i.e. on asymmetric movement of the wing flaps, and angularly deflects, via a plunger 12, an output signal lever 17 connected to operate the appropriate switch or valve shut-off device. The spring 13 is arranged to yield only after a predetermined lost motion i.e. cam dwell is absorbed, the cam dwell providing a suitable tolerance permitting out-of-phase limits between the wing flaps to avoid nuisance tripping, the balls 9 normally remaining in the dwell of the cam 8 such that no output signal is imparted to the lever 17.
Patent GB-1186523-A (GB)
Title: Over-Based Alkaline Earth Metal Salts of Organic Sulfonic Acids
IPC: C10M159/24
Filed: 1967-06-19
Abstract: 1,186,523. Detergent type lubricating oil additives. STANDARD OIL CO. 19 June, 1967 [20 June, 1966], No. 28178/67. Headings C5D and C5F. An overbased preferentially oil-soluble alkaline earth metal salt of an organic sulphonic acid useful as a lubricating oil additive is produced in a method comprising introducing into a mixture of (a) a neutral alkaline earth metal salt of an organic sulphonic acid, (b) an alkaline earth metal oxide or hydroxide and (c) lower alkanol, gaseous C0 2  in an amount sufficient to convert the alkaline earth metal oxide or hydroxide to carbonates, and ammonia in an amount sufficient to form from 0.01 to 0'2 mole ammonium carbamate per mole of sulphonate group. As sulphonic acid there may be used among others dilauryl benzene sulphonic acid, lauryl cetyl benzene sulphonic acid, paraffinsubstituted benzene sulphonic acids and polyolefine alkylated sulphonic acids. Suitably calcium or magnesium oxide is employed as alkaline earth metal oxide.
Patent GB-187606-A (GB)
Title: Improvements relating to self centring chucks
IPC: B23B31/16
Filed: 1922-10-17
Abstract: 187,606. Beck, F. Oct, 20, 1921, [Convention date]. Chucks. - A chuck has jaws 6 which are concentrically adjusted by means of pinions 5 operated by a central worm 8. The worm may be rotated by hand at 11 to give the jaws a preliminary adjustment, and a final grip applied by a key-operated bevel pinion 13. The pinion shafts 4 are shaped as in Fig, 3 so as to fit in grooves turned in bosses 1, Fig. 1; the shafts being held in the grooves by pins 7.
Patent GB-825674-A (GB)
Title: Semiconductor device and method of making same
IPC: H01L21/00
Filed: 1957-09-06
Abstract: 825,674. Semi-conductor devices. HUGHES AIRCRAFT CO. Sept. 6, 1957 [Oct. 1, 1956], No. 28258/57. Class 37. A junction semi-conductor device is produced by melting and recrystallizing a portion of a semi-conductor body containing two active impurities of differing segregation coefficients, that having the lower forming a high resistivity region of conductivity type opposite to that of the remainder of the body, a metallic region consisting of a neutral metal and the lower segregation coefficient impurity being provided in contact with the region of opposite conductivity type. Fig. 4 shows an N-type germanium body 13 with P-type region 15 and metallic region 14; the impurities in body 13 consist of B and Sb, Sb predominating. The body was produced by depositing a layer of neutral metal such as Au, Pb or Sn on body 13 and heating to a temperature below the eutectic temperature but above the melting-point of the alloy, and cooled. The first portion 15 of the recrystallized region contains much boron and little antimony and is P-type while region 14 is metallic and consists of antimony and the neutral metal. The semi-conductor material may consist of Ge, Si, Ge-Si alloy, various A 3 B 5  intermetallic compounds, PbS, PbTe, PbSe, CdS, CdTe or CdSe; the acceptors of B, Al, Ge or In, and the donors of P, As or Sb.
Patent GB-358253-A (GB)
Title: Improvements in floating vessels, tanks, bridges and other constructional steel work
IPC: B63B3/14
Filed: 1930-09-22
Abstract: 358,253. Constructional ironwork. SPANNER, E. F., 13, Shooters Hill Road, Blackheath, London. Sept. 22, 1930, No. 28264. [Class 20 (ii).] The triangular bracket used to connect structural members which approach or cross each other in ships, buildings, tanks, and the like, is replaced by a sectional metal bar d disposed in the plane of the main stresses between the members a, band making equal angles with the structural members. The bar is placed at such a distance from the angle that the line of resultant force on the rivets used in its connection coincides with the line of resultant force on the rivets used in the ordinary triangular bracket it replaces. The ends of the connecting bar a are bevelled and where the structural members meet at an acute angle the sharp ends of the bevelled portions are also removed, Fig. 5. Specification 350,333 is referred to.
Patent GB-1398111-A (GB)
Title: Treatment of sewage
IPC: C01B31/08
Filed: 1972-06-16
Abstract: 1398111 Ultrafiltration CALGON CORP 16 June 1972 [16 June 1971] 28374/72 Heading B1X In a method of treating raw sewage using a semi-permeable membrane supported on the internal surface of a porous tube and in which pressure is applied to raw sewage in the tube to effect permeation of water through the membrane a coating comprising from 5 to 75 weight per cent adsorbent and, correspondingly, from 95 to 25 weight per cent absorbent is periodically deposited on the membrane surface, raw sewage is passed through the tube under pressure to effect permeation of water through the membrane until the flux of water is significantly reduced, the coating is flushed away from the membrane surface and that surface is cleaned. The adsorbent may be activated carbon, or charcoal, a metallic sulphide, talc, or an organic resin; the absorbent may be diatomaceous earth vermiculite, green sand, bauxite, zeolite, incinerated sewage solids, fly ash, cement dust or a clay; the composition used to form the coating may also contain a dispersant such as a phosphate. The membrane may be of cellulose acetate.
Patent GB-467143-A (GB)
Title: Improvements in casings for mining explosives
IPC: F42B3/28
Filed: 1936-10-19
Abstract: 467,143. Blasting-cartridges. LIGNOZA SPOLKA AKCYJNA. Oct. 19, 1936, No. 28380. Convention date, Nov. 14, 1935. [Class 9 (i)] Protective sheaths for explosive mine-charges consist of a cooling agent such as common salt or sodium bicarbonate, and a non-combustible wax binder formed of a chlorine derivative of naphthalene, e.g. tetrachlor-naphthalene. The wax content in the mixture may vary from 1 to 20 per cent, and it is stated that from 1 to 50 per cent of the naphthalene compound may be replaced by paraffin wax or the like.
Patent GB-178143-A (GB)
Title: Improvements in automatic valves or switches to secure the more economical use of gas, electricity, steam, hot water, hot air, or the like, for heating purposes
IPC: G05D23/12
Filed: 1920-10-07
Abstract: 178,143. Wilkinson, G. Oct. 7, 1920. Thermally-actuated valves.-A, valve for controlling gas, steam, hot water, hot air, or the like for heating purposes, or an electric switch is actuated by a thermostatic capsule formed of sheet metal having a thickness of 0.004 to 0.006 inch. The capsule 1, Fig. 1, is mounted on a spindle 2 between an adjustable nut 6 and the cover 5 of the casing so that its free expansion may be confined within safe limits. A valve 13 is mounted on the lower end of the spindle 2 and is closed against the pressure of a spring 9, the tension of which may be adjusted by a nut 8. When used for gas, a by-pass opening 15 may be provided. The capsule is filled with a liquid having a boiling point approximating to the temperature required. Fig. 4 shows the application to an electric switch. The capsule 1 is enclosed between plates a, b, the upper plate a carrying one of the contacts 13. The other contact 14a is carried by the casing. In another modification, Fig. 6, the contacts 13, 14a are enclosed in a casing which is sealed by rubber diaphragms 18. In another modification, Fig. 8, weights 9 are used instead of a spring, and a spindle 2 carries a diaphragm valve 13, the degree of closing being varied by nuts 14.
Patent GB-607710-A (GB)
Title: Improvements in grips for use with haulage ropes
IPC: F16G11/10
Filed: 1945-10-26
Abstract: 607,710. Rope grips. ASPINALL, J. Oct. 26, 1945, No. 28408. [Class 78 (ii)] In a cable grip of the type where movable jaw 13 is pivoted at 14 to lever 16 which carries the load, e.g. a coal tub and which is itself pivoted at 17 to transversely-concave opensided jaw 12, one or both jaws has an additional transverse concavity 24 in order to take the swelling of the cable 11. Specification 26871/13, [Class 78 (ii)], is referred to.
Patent GB-805692-A (GB)
Title: Improvements in and relating to waveguides
Inventor: FRY JOHN ALDOUS
IPC: H01P11/00
Filed: 1954-10-01
Abstract: 805,692. Waveguides. ENGLISH ELECTRIC CO. Ltd. Sept. 23, 1955 [Oct. 1, 1954], No. 28410/54. Class 40 (8). Waveguides of the type in which the conductive medium is in the form of a metallic film are assembled by a process of cold-welding. For this purpose the metallic film is made of a coherent, ductile metal such as indium which is coated, e.g. by electro-deposition, upon the parts to be assembled, the parts being caused to adhere by the application of pressure at a non-elevated temperature. A solid-dielectric waveguide 20 comprising a core of polystyrene coated with a suitable ductile metal 21 may be attached by cold-welding to a crystal holder 22 which is similarly coated. The holder is made of a material having the same coefficient of thermal expansion as the core of the waveguide but selected to provide good adhesion of the metallic film. The whole of the film applied to the parts may consist of cold-welding metal or only a surface layer may be so constituced. Mechanical strength is imparted to the assembly by means of a casing 25 of casting resin. Good adhesion of the metallic film may be obtained by roughening the surfaces to be coated. Fig. 7 shows in cross-section the attachment of a two-part flange 30 to a solid-dielectric waveguide 28. Reference has been directed by the Comptroller to Specification 759,200.