baber/WOPTO huggingface dataset:
Patent GB-1045397-A (GB)
Title: Improved hydrocracking process
Inventor: AREY WILLIAM FLOYD
IPC: C10G47/18
Filed: 1965-08-23
Abstract: A process for hydrocracking hydrocarbon fractions boiling above 300 DEG  F. by contact with a hydrocracking catalyst at a temperature of 500 DEG  to 800 DEG  F. for obtaining a high octane product of relatively constant quality throughout the reaction period comprises contacting said fraction with a hydrocracking catalyst comprising a platinum group metal on a crystalline aluminosilicate zeolite having an effective pore opening of 6 to 15 Angstroms which has been base exchanged with a cation to reduce its Na2O content to less than 10%, maintaining a high concentration of a catalyst poison during the initial stages of hydrocracking and reducing the concentration of the catalyst poison during the subsequent aging of catalyst while maintaining substantially constant the feed rate, conversion level and reaction temperature. The catalyst poison may be a nitrogenous compound or carbon monoxide.  The process permits operation at a constant high temperature thus giving a high-octane product but avoids the excessive production of gases characteristic of the use of high temperature with active catalysts.
Patent GB-1015864-A (GB)
Title: Improvements in or relating to automatic measuring, cutting-off and rolling-up machines for webs of paper or the like
Inventor: GABRIELS LEONARD
IPC: B65H19/22
Filed: 1962-10-22
Abstract: 1,015,864. Feeding webs. FRASTON (HOLLINWOOD) Ltd. Jan. 22, 1964 [Oct. 22, 1962], No. 36115/62. Heading B6B. A web 44, Fig. 6, is fed from a roll 102 by a roller 100 driven by a motor 94 through a variable-speed gear 97 and deposited in a series of folds on a band conveyer 103 running in a trough 105. The successive folds are carried on a counter-weighted baffle 106 which tilts when a suitable length of web has accumulated upon it, thereby adjusting the gear 97 to reduce the speed of feed. When the material on the baffle has passed to a web cutting and rolling-up machine, the baffle is restored to increase the speed. The web from the conveyer 103 passes under a roller 110 actuating a pre-set meter, under a roller 59 mounted on arms 60 so that it can be skewed to correct the alignment of the web plane, between rollers 51, 53, under a cutter blade 65 and between rollers 29, 30. The roller 53 can be raised by a handle 56 to facilitate threading in a new web. The roller 30 rests by gravity on the roller 29. Rollers 51, 29 are driven by a second motor through hydraulic-controlled clutches 24, 23, respectively. The web is then passed over a roller 32 driven from the roller 32 and is wound into a roll 45 by rollers 32, 33, 34, 35 all rotated in the same direction. The rollers 34, 35 are driven through the clutch 23 and are carried on a gate 36 pivoted at 37 and urged by a spring 39 so that the roll 45 is contacted by the rollers 34, 35 and moves the latter to the right as its diameter increases. A third motor drives an hydraulic pump which operates four valves, controlling the clutches, the knife, and the gate 36, which is moved clockwise after a cut length of web has been wound to allow the roll 45 to fall into a trough 47. When a predetermined length of web has been fed, the meter energizes a magnetic clutch to connect the second motor to a cam-shaft carrying four cams and which also closes the valves for the clutches 24, 23 to stop the web feed. One cam opens the valve for the clutch 23 momentarily to cause winding up of the tail of the cut web, another two actuate the knife 65 and the gate 36, and the fourth cam actuates contacts to hold the magnetic clutch closed while the meter is reset, further contacts to reset the meter, and further contacts to prevent re-engagement of the clutch 24 while the meter is being reset. When the cam-shaft has completed its revolution, the magnetic clutch is opened, the cam-shaft stopped, and the web feed re-started. A stop button is provided whereby the operator can extract a faulty section of web either before or after the cutter, the stop button stopping the web feed and closing the magnetic clutch to complete the machine cycle.
Patent GB-1213371-A (GB)
Title: Isostatic hot pressing of metal-bonded metal carbide bodies
IPC: B22F3/15
Filed: 1968-07-29
Abstract: 1,213,371. Isostatic hot pressing. E. I. DU PONT DE NEMOURS & CO. July 29, 1968 [July 31, 1967], No.36151/68. Heading C7D. Cemented carbide bodies are isostatically hot pressed by surrounding the bodies with a borosilicate glass essentially free of alkali and alkaline earth metals and consisting of 83-99À7% SiO2 and 0À3-17% B2O3, heating the glass to a temperature to make it plastic and applying sufficient pressure to increase the density of the carbide e.g. to at least 98% theoretical. The carbides are those of W, Ti, Ta and Nb bonded with 3-30% of Fe, Co, Ni or Mo and small amounts of oxides, borides nitrides and silicides may also be present. The cemented carbide bodies are formed by compacting at 200- 10,000 p.s.i. a mixture of the carbide and binder having a particle size less than 10 microns and sintering at 1300-1500C to a density of at least 60% theoretical. Alternatively the mixture may be isostatically pressed prior to sintering. The surface pores of the sintered bodies are less than 100 microns in diameter and the moulds used for the isostatic hot pressing in glass may be of graphite, W or Mo. The glass powder is first loaded into the mould and pressed, the cemented carbide body is then inserted and covered with more glass powder. The assembly is then heated to 1200-1700 C under vacuum or an inert gas, maintained at this temperature and hot pressed at 4000- 6000 p.s.i. The assembly is cooled quickly by removing from the furnace and the hot pressed billet is removed from the glass envelope.
Patent GB-989779-A (GB)
Title: Method of, and apparatus for, producing structural honeycomb materials
Inventor: WHITE DESMOND DEVERELL
IPC: B31D3/02
Filed: 1960-10-21
Abstract: 989, 779. Apparatus for treating textiles etc.; honeycomb structures. DUFAYLITE DEVELOPMENTS Ltd. Oct. 20, 1961 [Oct. 21, 1960], No. 36226/60. Addition to 951, 631. Headings D1L and D2B. [Also in Division B5] Honeycomb structures are produced in unexpanded form by winding sheet material on a rotary former and applying to the material during winding bands of adhesive which are applied by a gluing apparatus movable between two positions so that bands applied in one position are staggered relative to bands applied in the second position, the gluing apparatus being moved between the two positions in synchronism with the rotation of the former. The gluing apparatus is preferably a printing roller, although a pair of printing rollers may be used and brough alternately into their printing positions. The adhesive may be applied to the web as it approaches the former, but in preferred apparatus a single web of material is wound on a hexagonal drum 3 and consolidated on the drum by a roller 7. In this arrangement, the printing roller is carried by a linkage 12, 13 suspended from a carriage 14 mounted for motion parallel with the axis of the drum 3 from the axle of which drum the parallel motion is derived through a cam that causes the carriage 14 to traverse whenever the drum 3 and the printing roller 9 are in the positions shown. One such movement for each revolution of the former is all that is necessary but movements may take place at any odd member of corners of a drum. For some applications the material requires treatment with an impregnating agent, e.g.a thermosetting resin or a flame proofing agent and for this purpose an impregnating trough, a drying chamber and a traversable printing head (Fig. 3, not shown) precede a rotary former.
Patent GB-1070690-A (GB)
Title: Improvements in or relating to the setting of cements
Inventor: DODSON VANCE HAYDEN
IPC: C04B24/04
Filed: 1965-08-24
Abstract: Hydraulic cements, and concrete mixes prepared therefrom, contain, as a combined setting accelerator and metal corrosion inhibitor, a mixture of calcium formate with benzoic acid or an alkali metal, alkaline earth metal, or ammonium salt of chromic, benzoic, or nitrous acid.  Typical salts are sodium chromate, calcium benzoate, and sodium nitrite.  The cement is preferably Portland cement, and typical concrete mixes also contain sand and gravel.  The cement compositions are particularly suitable for making concretes containing metal reinforcements.
Patent GB-1312832-A (GB)
Title: Apparatus for and method of setting pins in mine roofs
IPC: E21D20/00
Filed: 1970-07-28
Abstract: 1312832 Nailing machines PIN-SET CORP 28 July 1970 [1 Aug 1969] 36372/70 Heading B4C [Also in Division F2] Pins 44 are driven into a mine roof by a substantially smooth pushing force applied to the pin head 46. This force is defined as being such as will push the pin in relatively slowly and excluding impact forces. A pin setting device for inserting pins by this substantially smooth pushing force comprises an elongate guiding means having an open end 13, 14, a piston 20 movably mounted in the guiding means, jacking means 30 for locating the open end of the guiding means at a predetermined area of a mine roof and fluid means for applying a substantially smooth pushing force to the piston to urge the piston towards the open end of the guiding means. The hydraulic jacks 30 also provide a compressive force on the roof strata to improve the strength of the anchoring of the pin. The piston is preferably in two parts, the upper having a depression 23 to receive the head 46 of pin 44 and a ring 24 to wipe the cylinder, the upper and lower parts having sealing piston rings 25. A switch 41 prevents operation of the pin setting piston until the device is positioned securely between floor 12 and roof 11.
Patent GB-1311294-A (GB)
Title: Preparation of metal powders
IPC: B22F9/24
Filed: 1970-07-28
Abstract: 1311294 Mixed metal powders LE NICKEL 28 July 1970 [12 Aug 1969] 36373/70 Heading C7D A homogenous powder containing two or more metals is produced by preparing a salt solution containing ions of the metal, introducing a powder of at least one metal more electro-negative than the metals, the size of the powder being such as to permit complete cementation, agitating until cementation is complete and separating the powder from the solution. The metals may be two or all of copper, nickel and iron. The powder may be aluminium, in which case an activating agent to remove surface alumina may be added, such as hydrochloric acid or an alkali metal or alkaline earth metal chloride. The solution may be applied, and may be of sulphates and/or chlorides.
Patent GB-1017968-A (GB)
Title: Magnetic sound reproducer
IPC: G11B15/34
Filed: 1963-09-17
Abstract: 1,017,968. Magnetic recording &c. apparatus. SIEMENS & HALSKE A.G. Sept. 17, 1963 [Aug. 27, 1963], No. 36604/63. Heading G5R. Magnetic playback apparatus wherein a tape or film is driven by sprockets over flywheels which are equipped with auxiliary driving means, is characterized in that the sprockets are driven only during normal operation, and that during other operations, e.g. reverse running, the tape is disengaged from the flywheels which are then driven at normal speed by their auxiliary driving means. In Fig. 1 a perforated film strip passes from a supply reel 7 over a guide pulley 9 to a sprocket 8, tensioning rollers 44 and 45, and flywheel roller 20 to the erase, recording and playback heads 11-13 and rollers 15, the return path to the take-up reel being similar. A button 30 for recording is coupled to a warning lamp to prevent unintentional operation, and during recording the film is driven by sprockets 8 and 34. When the apparatus is stopped by button 32 a solenoid (not shown) causes rollers 24 and 25 to be lifted away from the flywheel rollers and an auxiliary drive is coupled to the flywheels to maintain them rotating at normal speed. Operating switch 33 switches the apparatus from normal operation to actuation through a frequency converter for rewinding or monitoring, the speed and direction being controlled by switch 38. During rewinding the film is driven by motors 4 and 5 turning the supply and take-up reels and sprockets 8 and 34 are disengaged from their drives, for example by magnetic clutches. During rewinding sprocket 34 is coupled to a film length counter 41, rollers 24 and 25 are retracted, and rollers 15 may or may not be retracted according to whether or not it is desired to use the magnetic heads. The driving motor may include a series resistance which can be short-circuited by a switch to give two running speeds, for example 24 frames/sec. for sound film and 25 frames/sec. for television film.
Patent GB-1045940-A (GB)
Title: Shell and tube heat exchanger
IPC: F28F9/02
Filed: 1964-09-07
Abstract: 1,045,940. Making heat exchangers. S. C. HOLLISTER. Sept. 7, 1964 [Nov. 29, 1963], No. 36562/64. Heading B3A. [Also in Division F4] A method of assembling a shell and tube heat exchanger comprises the steps of forging a flat plate, milling the plate to form a tube plate 20 having a flat portion 35 and integral therewith an annular lip the lip having a radial neck portion 42 and a flange 40 flaring upwardly and outwardly from the neck portion, forming in the flat portion 38 holes 26 for the insertion of tubes 18, affixing the tubes therein and welding to the flange at 48 a hemispherical header 14. The header is provided with an internal partition 28 separating the chamber 22 into inlet and outlet portions fed from ducts 30 and 32. A manhole cover 36 is also provided. The grooves 44 and 46 on either side of the neck 42 prevent stresses being set up in the tube plate during welding and the flange 40 acts as a heat barrier. The tubes 18 protrude through the openings 26 and may be retained by expanding them on the chamber side of the tube plate either before or after the header is welded into position.
Patent GB-790718-A (GB)
Title: Covering plate for rolling tracks, airfield runways and the like, and covering formed of such plates
IPC: E01C9/08
Filed: 1955-12-21
Abstract: 790,718. Runways &c. ATELIERS D'ESTAMPAGE D'EMBOUTISSAGE ET DE CONSTRUCTIONS METALLIQUES, EN ABREVIATION ATEMCO SOC. ANON. Dec. 21, 1955 [Dec. 21, 1954], No. 36680/55. Class 107 A pressed sheet metal covering plate for rolling tracks, airfield runways and the like comprise a plurality of unperforated parallel strips each having projections on its upper surface, the projections along each strip being alternately upright and St. Andrews crosses. The crosses may be arranged with one arm of each upright cross terminating between two arms of an adiacent St. Andrews cross on the same strip, whilst the upright crosses of one strip may alternate with St. Andrews crosses or an adjacent strip or strips. The strip may be separated by channels 6 for the disposal of rain water. Along one side of each strip is a groove 12 with slots 13 to engage with corresponding, and preferably detachable, lugs 15 on another strip. Butts 16 may be provided at one end to support adjacent strips which may be assembled in staggered or unstaggered formation. Specifications 562,473 and 562,681 are referred to.
Patent GB-915115-A (GB)
Title: Improvements in control valve means for fluid pressure operated apparatus
Inventor: TENNIS FRANCIS HENRY
IPC: E02F3/42
Filed: 1959-10-29
Abstract: 915,115. Valves. HYDRAULIC UNIT SPECIALTIES CO. Oct. 29, 1959, No. 36749/59. Class 135. In a control valve for a motor raising or lowering a heavy member, movement of a spool valve 34 from a neutral position, in which fluid is pumped from inlet 40 to outlet 41 via spool groove 46 and passages 39, 42, to the right allows spool load 63 to close passage 42 and open an inlet pressure supply passage 47 to a motor " raise " port 49 while load 69 allows the other side of the motor to exhaust via passages 51, 67. On spool movement to the left, load 64 allows inlet pressure at 48 to pass to a motor " lower " port 51 and load 68 allows exhaust via passages 49, 66 and an orifice 71. In order to avoid cavitation on the lowering side of the motor due to movement of the motor by the heavy member and inability of the spool to pass sufficient fluid in its lowering position, spring-loaded valve 78 opens under the back pressure in passage 66 so that exhausting fluid may pass to the motor " lower " port 51. The orifice 71 may connect passage 66 to an exhaust passage 86 via an inlet pressure relief valve 83. A check valve is formed between the inlet 40 and the passage 47, 48. Specification 915,114 is referred to.
Patent GB-772031-A (GB)
Title: Ornament for spectacles
Inventor: KRAMER VERA
IPC: G02C11/02
Filed: 1954-12-20
Abstract: 772,031. Jewellery. KRAMER, L. G. [trading as KRAMIQUE]. Dec. 20, 1955 [Dec. 20, 1954], No. 36760/54. Class 43. [Also in Group XX] An ornament for a spectacle frame comprises a metal strip 3 having integral ears 4 for clipping the ornament to the spectacle frame and, welded to the strip 3, a filigree moulding 1 of white metal bearing jewels.
Patent GB-1423066-A (GB)
Title: Voting machine
IPC: G08B5/00
Filed: 1973-08-02
Abstract: 1423066 voting/question-answering apparatus APPLIED FUTURES Inc 2 Aug 1973 [14 Aug 1972] 36806/73 Headings G4T G4H and G5G Each of a number of voting or questionanswering stations 12a, 12b, 12c &c. includes a switch 46, settable by an individual at that station to represent his selected one of a plurality (three, as shown) of possible answers to a question, and a variable resistor 40, settable by the individual to represent his confidence in his answer. The individual now closes switch 78 to energize a relay 75 using A.C. power delivered by a central station 10 over lines 71, 72, 73. Relay contacts 80 provide a holding circuit, contacts 81 de-energize a " please vote " lamp 83 and energize a " vote recorded"  lamp 82, contacts 86 energize through wiring not shown a central station lamp 87 corresponding to the respective station 12 to indicate that voting has been completed at such station 12, and contacts 44 prepare the vote indicating circuit 40, 46, 47-49, 60-62, 65, 66, 23, 91, 30, which circuit is still open at 91. When all lamps 87 are energized, indicating the completion of voting at every station 12, an operator at station 12 closes ganged switches 90, 91. Switch 91 closes the vote indicating circuits, whereby all votes for a particular answer (weighted in accordance with the setting of resistors 40) are summed, the total being represented by the reading on an ammeter 60, 61 or 62 corresponding to the particular answer. Switch 90 energizes lamp 93 at vote indicator 11. The reading of voltmeter 27 is related to overall confidence, i.e. irrespective of particular answers.
Patent GB-816100-A (GB)
Title: Sealing means for carriage-or bogey-furnaces
IPC: C21D9/00
Filed: 1957-11-26
Abstract: 816,100. Seals for furnace hearths. SVENSKA METALLVERKENS UGNS A.B. Nov. 26, 1957 [Nov. 26, 1956], No. 36829/57. Class 51 (2). A sand seal for the bogie hearth 2 of a batchtype furnace comprises flanges 6 dependent from the walls 1, door 12 of the furnace and from the periphery of the hearth 2, co-operating with a sand trough 4 mounted for vertical movement on the hearth framework. The trough 4 is supported by arms 7 mounted in sleeves 8 turning about pivots 9 secured to the framework, said sleeves also carrying arms 10 connected by pullrods 11. The sleeves nearest the door 12 also have arms 13 with rollers 14 engaging cam surfaces 15 as the hearth enters the furnace, thus raising the trough 4 to engage the flanges 6. The trough may also be raised by pneumatic, hydraulic or electrical means.
Patent GB-1511026-A (GB)
Title: Abrasive secouring compositions
IPC: C11D3/12
Filed: 1975-09-08
Abstract: 1511026 Abrasive cleaning composition PROCTER & GAMBLE CO 8 Sept 1975 [9 Sept 1974 4 Sept 1975] 36837/75 Heading C5D An abrasive cleaning composition comprises: (a) 0À1-15 weight per cent of anionic, nonionic, ampholytic and/or zwitterionic surface active agents, (b) 1-65 weight per cent of particulate expanded perlite having a particle size within the range 1-190 microns and a specific gravity of 0À2 to 2À2 and (c) an alkaline inorganic salt, a neutral inorganic salt or water. The composition may be in granular form or in the form of a liquid suspension in which latter case a suspending agent for the perlite must be present. Granular composition may be sprayed with an agent to reduce dust. The composition may also include a bleach, a bleach stabilizer, another abrasive, a perfume and/or a dye. Ingredients specified include: Surface active agents-sodium coconut alkyl sulphate, potassium coconut alkyl sulphate, sodium lauryl sulphate, potassium lauryl sulphate, an alkyl ether sulphate, an alkanolamine alkyl benzene sulphonate, sodium alkylbenzene sulphonate and hexadecyl dimethyl ammonio hexanoate; inorganic salts-a bicarbonate, a sesquicarbonate, a tetraborate, sodium carbonate, sodium metasilicate, trisodium phosphate, tripotassium phosphate, tetrapotassium pyrophosphate, potassium carbonate and sodium tripolyphosphate; suspending agents-smectite, attapulgite, montmorillonite, volchonskoite, nontronite, beidellite, hectorite, saponite, sauconite and vermiculite clays; dedusting agents-anionic surface active agents, a secondary fatty alcohol ethylene oxide adduct, amphoteric or zwitterionic surface active agents and mineral oils; bleaches -hypochlorite addition products, chlorimines, chloramides, chlorimides, sodium hypochlorite, potassium hypochlorite, monobasic calcium hypocholorite, dibasic magnesium hypochlorite, chlorinated trisodium phosphate dodecahydrate, potassium dichloroisocyanurate, sodium dichloroisocyanurate, sodium dichloroisocyanurate dihydrate, trichlorocyanuric acid, 1,3-dichloro-4,4-dimethylhydantoin, N-chlorosulphamide, Chloramine T, Dichloramine T, Chloramine B and Dichloramine B; other ingredients - sulphamic acid, water soluble bromide, calcium oxide, calcium hydroxide, and sodium acetate.
Patent GB-1126516-A (GB)
Title: Cutter heads for dry shaving apparatus
IPC: B26B19/10
Filed: 1967-08-11
Abstract: 1,126,516. Dry shavers. CARINTHIA ELEKTROGERATE G.m.b.H. 11 Aug., 1967 [12 Aug., 1966], No. 37112/67. Heading B4B. A cutter head for a dry shaver includes a razor part and a lateral trimmer each comprising a stationary, upper cutter and a reciprocatory lower cutter, the upper cutter of the razor part being a perforated cutter foil, and the lower cutters being components separate from one another, a frame supporting both the upper cutters, and a unitary spring bridge arranged to press both the lower cutters upwards against the respective upper cutters and transmit reciprocatory motion to the lower cutters, the spring bridge comprising a middle part to receive reciprocatory drive and at least two spring bars, each extending longitudinally from end to end of the lower cutters and engaging at its opposite ends against one of the lower cutters. The lower razor cutter 1, Fig. 1, is formed of thin sheets 2 and is reinforced at each end-by a bar 3. The lower cutter 4 of the lateral trimmer is formed like a frame the longitudinal parts 5 of which carry cutter teeth 6 and are connected by a member 7. A unitary spring bridge 10 has three spring bars or leaf springs, i.e. two spring bars 8, 8<SP>1</SP> associated with the cutter 1 and a spring bar 9 associated with the cutter 4. The central portion of the bridge 10 is engaged by a driving member 11. Preferably, the bridge 10 is made of spring sheet metal. In a modification, only one leaf spring (8), Fig. 2 (not shown) is associated with the cutter (1) of the razor and only one leaf spring (9) with the lower cutter (4) of the lateral trimmer. In another modification, the cutter head has a razor portion and two lateral trimmers 18, 19, Fig. 3. The lower cutters 1, 4 are connected by a spring bridge 10 with a common central portion 11 while a leaf spring 8 provides the connection to the lower cutter 1 and two leaf springs 9, 9<SP>1</SP> provide the connection to the lower cutter 4 of the lateral trimmers. A U-shaped stirrup 27 holds the cutters 1, 4 in the cutter head. In a further modification, the cutter head is arranged to tilt through 90 degrees between the operative and inoperative positions.