baber/WOPTO huggingface dataset:
Patent GB-735065-A (GB)
Title: Jet propelled aircraft
Inventor: ASHWOOD PETER FREDERICK
IPC: B64D39/00
Filed: 1952-10-20
Abstract: 735,065. Jet propulsion plant. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Oct. 15, 1953 [Oct. 20, 1952], No. 26329/52. Class 110 (3). [Also in Group XXXIII] An aircraft power plant comprises a plurality of jet propulsion engines 1 which draw air through a leading edge intake 3 and discharge through rearwardly directed jet pipes 4 into a rectangular nozzle 5. Each nozzle has a cylinder or part-cylinder 6 projecting into its lower surface substantially at its juncture with the lower surface of the wing and an adjustable flap 7 is provided for rotation about the axis of each cylinder whereby the jet efflux may be directed rearwardly or downwardly. Where all of the cylinders 6 are in transverse alignment the flaps 7 may be mounted for rotation on a common shaft 8 mounted in bearings 9 and driven by a motor 10. In an alternative embodiment (Fig. 5, not shown) the engines, instead of being arranged fore-and-aft, are arranged transversely of the aircraft and the air inlet and exhaust ducts are respectively curved to lie normal to the leading and trailing edges of the wing. Specification 724,011 is referred to.
Patent GB-334068-A (GB)
Title: Improvements in or relating to work tables or desks
IPC: A47B17/03
Filed: 1929-08-29
Abstract: 334,068. Hodgson, H. E. Aug. 29, 1929. Work-boxes. - A work-table comprises two separable half-tables 2 each of which is made up of superposed separable box-like sections 3, 4, 5. The lower section 3, as shown, consists of a deep box which may have one side 7 open. The middle section 4 is an open-topped box of medium depth, preferably divided into compartments, and the top section 5 is a shallow box with a hinged lid 12, made in two parts, and marked with a measuring scale 15. The parts 4, 5 may be connected by hooks 16 and eyes 17, and may be slid on the parts below. One. part may have a slot 18 to enable letters &c. to be dropped in.
Patent GB-902251-A (GB)
Title: Improvements relating to the machining of metals
IPC: B23P25/00
Filed: 1957-08-21
Abstract: 902,251. Milling; planing; turning. WILLIAMSON, J. B. P. Aug. 21, 1958 [Aug. 21, 1957], No. 26360/57. Class 83 (3). In a method of heating work during machining, heat is supplied by an electric current which passes through a tool. The tool 5, Fig. 1, comprises a copper shank having water-cooling passages 6, a non-conducting ceramic cutting- tip 8, and a contacting surface 9 for heating the work. The current may be conducted through the tip 8. The return-path for the heating current may be a slip-ring, mounted on the chuck of a lathe for example. The tool may have two conducting portions separated by a non-conductive material, said portions acting as current supply and return electrodes. In a modification a battery of electrodes 13, Fig. 4, is used in conjunction with a tool 15 and the current is controlled by variable resistors 16. The position at which a chip separates from the work is stated to be a function of temperature distribution, the control of which can adjust the depth of cut. The method may be applied to drilling and milling. If temperature variations are produced cyclically with rotation of the work, workpieces of non-circular section can be produced.
Patent GB-1437353-A (GB)
Title: Hydrostatic drive means
IPC: F16H61/40
Filed: 1973-06-02
Abstract: 1437353 Hydrostatic transmissions DAVID BROWN TRACTORS Ltd 28 May 1974 [2 June 1973] 26430/73 Heading F2W [Also in Division F1] In a hydrostatic transmission, having a pump 14 and motors 19 a low pressure is maintained on the ends of the motor pistons adjacent their guide cam surfaces (the motors having radial pistons or axial pistons) through a drain conduit 38. The drain conduit 38 has a pressure maintaining valve 39 and communicates with an accumulator 40 for accommodating volume differences in the conduit 38 as the motors rotate and the maintained pressure holds the pistons away from the cams to prevent bouncing of the pistons when the delivery and return lines to the motors are interconnected (by valve 20) and the pressure in these lines reduced to atmospheric by the opening of a valve 42 which communicates with a header tank 35. The pump 14 is a swash-plate pump of variable capacity, varied inversely depending on output pressure either by the servo 16, 17 shown or by the incorporation of spring-loaded pistons in the pump. The pump delivers through a filter 21, a relief valve 22 is provided, a by-pass line 30 having a valve 29 operable on depression of a brake pedal 25 is provided (pedal 25 also operating vehicle service brakes) and the motors 19 are supplied through reversing valve 20 having a neutral position which interconnects the delivery and return lines of the pump to by-pass the motors, as well as interconnecting the main and return lines of the motors. A valve 31 in the return line is opened by the delivery pressure (from line 32) and a low-pressure relief valve 33 is also provided in this line. Header tank 35 provides make up fluid through a check valve 36, a lowpressure relief valve 37 being in parallel with this. When the vehicle's brakes are applied through pedal 25 the valve 29 is opened to reduce the delivery pressure, which reduction tends to close valve 31 and brake the vehicle by throttling motor output. If the delivery of the pump ceases, due to, e.g. the clutch 12 being opened this also causes braking by tending to close valve 31, higher pressure return from the motors also closing valve 33 and opening valve 29 to prevent over-pressurization of the pump. The transmission can be the main drive of a vehicle, or, as shown, the main drive may be to the rear wheels through a shaft 13 with the transmission shown being auxiliary and driving the front wheels, or alternatively driving the wheels of a trailer. In the latter case the reversing valve need not have a neutral position, this being replaced by interconnection of the pipes between the trailer and its tractor. The motors 19 can be in series rather than parallel or may be in parallel over a low speed range and in series over a higher speed range. The vehicle driven may be agricultural, it may be an industrial tractor with a trailed dump truck or it may be a road vehicle.
Patent GB-279072-A (GB)
Title: Improvements in the destructive hydrogenation of coals, tars, mineral oils and the like
IPC: C10G1/06
Filed: 1927-10-06
Abstract: 279,072. I. G. Fasbenindustrie Akt.- Ges. Oct. 14, 1926, [Convention date]. Addition to 254,713, [Class 1 (i), Chemical processes &c.]. Producers.-Hydrogen for use in destructive hydrogenation is made by decomposing hydrocarbon gases and carbon dioxide in a shaft furnace filled with coke and working as a producer. Specification 269,547, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-172156-A (GB)
Title: Improvements in and relating to automatic stamp delivery and affixing machines
IPC: B65C11/04
Filed: 1920-09-16
Abstract: 172,156. Rogers, T. W., (Krupp Akt.-Ges., F.). Sept. 16, 1920. Delivery of stamps cut from strips.-Comprises a coin-freed machine which affixes a stamp to a letter when one is inserted in the machine, and delivers a dry stamp when a letter is not inserted. A letter when inserted lies upon a slide W beneath the affixing-plunger h<1>, and when the driving-shaft B is freed by the insertion of a coin, a cam c' upon it operates the plunger through a link E and a lever F, a stamp is detached by grippers from a roll a<5>, a pin g<5> on the plunger operates a lever K which passes a damping-roller K<2> across the adhesive surface of the stamp, and the plunger affixes the stamp to the letter. The slide W is notched as shown in Fig. 3 so that the fingers of an oscillating feeler N<2> can pass it, but when a letter is placed on the slide it obstructs the feeler, which is rocked by a cam c<2> on the shaft B through a lever R and a tension spring q<1>. When a letter is not inserted and the machine is freed, the feeler passes the slide W and a link M connected to it thrusts the damping-roller out of the path of the descending stamp, and a, toothed sector T also connected to the feeler operates gearing V which removes the slide W also from the path of the stamp. A shoot a<11>, which may be raised to meet the stamp, effects its delivery.
Patent GB-1023884-A (GB)
Title: Improvements relating to dispensers for liquid,powder or the like materials
Inventor: RAFFE JOSEPH PETER
IPC: B65D55/02
Filed: 1963-07-04
Abstract: 1,023,884. Pad applicators. CHISWICK PRODUCTS Ltd. July 3, 1964 [July 4, 1963], No. 26626/63. Heading A4K. In an applicator head, which may be formed for screw connection with a container for liquid or powder, a blind hole is extended into a rod 8 so that this may be broken off at its base to unseal the container. The head 3 may be of high impact polystyrene and the hole may be surrounded by a thickened boss having a peripheral lip 11 to prevent adhesive, used to secure cellular applicator pad 13, from reaching space 12. A polythene wing 17 is provided for gripping the end of the rod 8. Shoulder 18 and lip 11 may be omitted and the thickness of plate 16 may be gradually increased towards the centre. The container may have rigid or pliable walls and a cover cap 19 may be provided.
Patent GB-1381229-A (GB)
Title: Weft inserter for travelling-wave shedding looms
IPC: D03J5/06
Filed: 1973-06-05
Abstract: 1381229 Shuttles for travelling wave shedding looms VYZKUMNY USTAV BAVLNARSKY 5 June 1973 [12 June 1972] 26634/73 Heading DIE  A shuttle for a travelling wave shedding loom has a pointed rear face 3, bearing on a stationary reed 16, a leading face 4 including with the rear face 3 an angle not exceeding 45, the leading face 4 merging with an arcuate recess 62 which emerges with a trailing face 5 forming a right angle with the rear face 3, the trailing face 5 being notched to contain a weft tensioner 20 comprising leaf springs 201, 202 which are adjustably or elastically pressed together. The shuttle is guided in the shed by plates 22, 23 and the reed 16, and is propelled by a chain having a roller engaging a tapered roller 14 in the shuttle. The leading face 4 has warp clearing extensions 43, 44.
Patent GB-1008644-A (GB)
Title: Process for preparing homo- and co- polyamides
IPC: C08G69/08
Filed: 1963-07-05
Abstract: A process for preparing mono- and copolyamids comprises reacting in the presence of a small amount of water or organic or inorganic compounds giving off water while decomposing or reacting with amidine carboxylic acids with the simultaneous splitting off of water at a temperature exceeding 180 DEG C. for 1 to 30 hours, an amidine carboxylic acid of the formula.  <FORM:1008644/C3/1> or <FORM:1008644/C3/2> where R, R1 and R11 are hydrogen, alkyl aralkyl, aryl or heterocydic radicals, P is a bivalent radical derived from a cyclic compound, x is an integer from 3 to 12 and y is an integer from 1 to 12.  The examples describe the preparation of polymers from:-(1) N-[1 - aza - 1 - cyclohepten - 2 - yl] - e  - aminocaproic acid and (2) N-[1-aza-1-cyclohepten-2-y1]-e -aminocaproic acid and e -aminocaproic acid.
Patent GB-632448-A (GB)
Title: Improvements in or relating to electro magnetic relays
IPC: H01H51/28
Filed: 1947-10-06
Abstract: 632,448. Electromagnetic switches. KEMP, K. W. L. Oct. 6, 1947, No. 26793. [Class 38 (v)] A high voltage relay, specially suitable for airborne equipment wherein it is desirable for an aerial to be switched over from transmitting to receiving position, comprises an evacuated glass envelope 1 with a flexible metal end wall 14 which carries a lever 12, 12b transmitting movement from an armature 13 outside the envelope to a contact 12a within the envelope. The portion 12 of the lever is insulating and the contact 12a may be connected by a lead to a terminal 2 connected to the aerial. The transmitter is connected to a terminal 3 connected to a fixed contact 10 and the receiver to a terminal 20 connected through parts 12b, 14 and metal rod 19 to a fixed contact 9. The armature 13 of the twin electromagnet 8 is connected by a spring hinge 17 to the yoke 18 and has an extension 16 carrying a flat spring 15 a perforation in which is engaged by a nipple 12c on the lever 12, 12b so that movement of the armature operates the lever. The armature is biassed by springs 16 and with the magnet is enclosed by a hermetically-sealed cover 23. The envelope 1 may be readily removed from the rest of the relay by unscrewing a clamping ring 7. A conducting shroud 27 encloses the end of the envelope 1 making the electrostatic field more uniform and reducing its stress.
Patent GB-339596-A (GB)
Title: Improvements in or relating to electro-acoustic instruments
IPC: H04R17/00
Filed: 1929-09-04
Abstract: 339,596. Prisner, S., and Wender, E. Sept. 4, 1929. Loud - speakers; piezoelectric instruments. - A loud-speaker comprises a hermetically sealed flattish glass dish 1 within which is located one or a pair of piezo-electric crystals 2 with which are associated electrodes 3, the dish being filled with non-hygroscopic dry insulating oil 5 preferably under slight pressure. One wall 1<a> of the dish mav be made of large area and preferably of conical formation as shown, or, if desired, the dish may be located between two large area plates which may be formed integrally therewith. Alternatively, the dish may be located at the small end of an amplifying horn with which it may be integral or two horns may be provided, one on either side of the dish.
Patent GB-215662-A (GB)
Title: Improvements in or relating to inner tubes for pneumatic tyres
IPC: B60C5/08
Filed: 1923-10-27
Abstract: 215,662. Mohlman, G. F. Oct. 27, 1923. Air tubes.-An inner tube A is reinforced by one or more bands B of textile, fabric and rubber D, the edges of the bands being tapered and overlapping as shown at C.
Patent GB-796471-A (GB)
Title: New derivatives of tetrahydro-ª‰-carboline
Inventor: GAILLIOT PAUL
IPC: C07D471/04
Filed: 1956-09-30
Abstract: The invention comprises tetrahydro-b -carboline derivatives of the formula <FORM:0796471/IV (b)/1> and acid addition and quaternary salts thereof wherein one of R1 and R2 is a methyl group while the other is a benzyl, cyclohexylmethyl, cyclohexylmethyl, cyclohexenylmethyl or tetrahydropyranylmethyl group.  The compounds are made by (1) reaction of an ester R1Z, where Z is the residue of a reactive ester such as a halogen atom or a sulphonate or sulphate radical with the corresponding 4-unsubstituted tetrahydro-b -carboline, preferably in the presence of a condensing agent such as an alkali metal carbonate, alcoholate, hydroxide or hydride; (2) reaction of an aldehyde R2CHO with a tryptamine of the general formula <FORM:0796471/IV (b)/2> where R4 is a carboxy group or a hydrogen atom and where R4 is a carboxy group decarboxylation of the tetrahydro-b -carboline obtained and (3) reaction of an ester of the general formula R1Z with a 5 : 6-dihydro-b -carboline of the formula <FORM:0796471/IV (b)/3> followed by reduction of the resulting quaternary ammonium salt with an alkali metal borohydride.  The products are used for therapeutic purposes, suitably in the form of their acid addition salts such as the hydrohalides or 8-chlorotheophyllinates or of their quaternary salts such as the methiodides.  In examples: (1) 3-methyl-3 : 4 : 5 : 6-tetrahydro-b -carboline is reacted with cyclohexylmethyl bromide in the presence of sodium carbonate to give 3-methyl-4-cyclohexylmethyl - 3 : 4 : 5 : 6 - tetrahydro - b  - carboline hydrochloride which may be converted into its methiodide, by similar methods 3 - methyl - 4 - (3 - tetrahydropyranylmethyl) - 3 : 4 : 5 : 6 - tetrahydro - b  - carboline is ob tained, and (2) 3-cyclohexylmethyl-5 : 6-dihydro-b -carboline is converted into its quaternary salt with methyl iodide and reduced with potassium borohydride to give 3-cyclohexylmethyl - 4 - methyl - 3 : 4 : 5 : 6 - tetrahydro - b  - carboline, by similar methods the corresponding 3 - benzyl and 3 - cyclohexen - 41 - yl - methyl derivatives are obtained also the 3-methyl-4-benzyl derivative of 3 : 4 : 5 : 6-tetrahydro-b -carboline.
Patent GB-1490477-A (GB)
Title: Arrangements for producing information for controlling a printer unit of a teleprinter
IPC: H04L17/30
Filed: 1976-06-29
Abstract: 1490477 Logic circuits for control of printers SIEMENS AG 29 June 1976 [29 Sept 1975] 26949/76 Heading G4H An arrangement for producing information for supply to a teleprinter in response to received teleprinter characters, comprises a first store S1 having storage positions assigned to respective characters and serving to store information relating to basic functions of the printer, a decoder D1 responsive to each received character to address the assigned position of S1, a second store S2 having storage positions each serving to store a bit combination Ad corresponding to an assigned character and information Bf required to modify information stored in the S1 storage position assigned to that character, a counter Z arranged to be advanced through a plurality of counts in response to each received character, a decoder D2 responsive to each count of Z to address an assigned storage position of S2 to read out the corresponding Ad and Bf, means V to compare each Ad read out, in the presence of an enabling signal Ak, from S2 in response to a received character with that character and to produce an output signal in the event of identity, means including a setting-up matrix EM for producing and supplying to V said enabling signal Ak during specific Z counts, and means Go for modifying the information read from S1 with the information Bf read out from S2 in the presence of an output signal from V. The information stored in S1 consists of a word D to be printed and/or a control function S. D and/or S are modified by the appropriate information Bf from S2 (passed via buffer P) in EXOR gates Go to produce modified signals D* and/or S*. Matrix EM may be a diode matrix scanned by Z with the aid of a multiplexer M. The arrangement may also include a sequence detection circuit (Fig. 3, not shown) which serves to compare consecutive received characters and to produce a sequence signal in the event of at least two consecutive characters forming a sequence, S2 being addressed by D2 in dependence upon the sequence signal and the count in Z.
Patent GB-1204739-A (GB)
Title: Master cylinder reservoir sealing means and vent valve
IPC: B60T11/22
Filed: 1968-06-06
Abstract: 1,204,739. Hydraulic brakes; valves. BENDIX CORP. 6 June, 1968 [6 June, 1967], No. 26960/68. Headings F2F and F2V. A master cylinder fluid reservoir sealing means for location between an inner chamber 16, 18 of a fluid reservoir and a cover plate 22 to prevent contamination of the fluid in the reservoir, the sealing means comprises a sealing diaphragm 24 operatively secured to the fluid reservoir for sealing the inner chamber 16, 18 thereof and a vent valve 98 is provided in the sealing diaphragm which is operative to prevent pressure build-up in the reservoir chamber. The vent valve 98 is in the form of a check valve having a tubular body portion 104 integral with an annular umbrella portion 102 which is adapted to co-operate with a disc-shaped portion 90 of the sealing member 24 such that, when the vent valve 98 is assembled in a cupshaped portion 94 of the diaphragm 24, the umbrella portion 102 is deformed so that the rim 110 is biased against the upper surface of the cup-shaped portion thereby requiring a certain pressure differential across the umbrella portion before the venting of the chambers 16 or 18 can be caused by excess pressures therein. In the tandem master cylinder arrangement shown in Fig. 1 when the brake pedal is depressed a push rod 66 is moved to the left to urge plungers 38 and 40 to close off the compensating ports 30 and 32 to deliver pressurized fluid at the discharged outlet 72 and 74 of the master cylinder leading to the wheel brake cylinders. Upon release of the brake pedal, the plungers 38 and 40 are returned by the spring 58 and the cage spring 46 to the position shown in Fig. 1 should a residual pressure remain in the braking system which will, in turn, pressurize the chambers 16 and 18 of the reservoir 12 and the excess pressure will be directed to the underside of the vent valve 98 to raise the rim 110 of the umbrella portion 102 to allow the excess gaseous or hydraulic pressure to escape through the serrations 84 between the base portion 76 of the cover 22 and the main base portion 88 of the sealing member 24. The cover member 22 is adapted to be secured in position by means of a spring clip 26.
Patent GB-482824-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/22
Filed: 1936-10-05
Abstract: 482,824. Exhaust and like silencers. HOOVER HOLDING CO., Ltd. (Hoover Co.) Oct. 5, 1936, No. 26974. Addition to 455,855. [Class 7 (ii)] [Also in Group XXVIII] A sound muffler for suction cleaners, in the form of a rigid tubular member lined with sound-deadening material as claimed in the parent Specification, is connected to the outlet from the fan by sound-insulating means. The Figure shows a muffler composed of a metal tube E<1> lined with sound-deadening material E<2>, such as sponge rubber, and connected to a flange F<2> on the clamping-ring F of the dust bag by a fabric tube G, which is clamped at one end to the ring F by the reinforcement at the mouth of the dust bag D, and at the other end by a binding-wire G'. The lining E<2> is compressed within a second flange F<3> on the ring F. The outer end of the muffler is connected by a sling to the wall of the dust bag, which at this point is provided with a loop connection to a hook on the handle of the cleaner. Specification 412,894, [Group XXVIII], is referred to.
Patent GB-1360928-A (GB)
Title: Photographic processor
IPC: G03D3/13
Filed: 1972-06-09
Abstract: 1360928 Photographic processing apparatus ITEK CORP 9 June 1972 [10 June 1971] 26977/72 Heading G2X Photographic processing unit comprises at least one processing station for treating photographic materials with a liquid processing agent, the station including entrance and exit means for the materials and means operable to direct photographic materials from the exit means to the entrance means to recycle the photographic materials through the processing station for one or more times until the desired treatment has been effected. As shown materials are guided between 14, 16 through the liquid bath 10 to rollers 20, 22 and then either into another bath 11 or back between rollers 14, 16 depending on the position of a solenoid-operated deflector 25.