baber/WOPTO huggingface dataset:
Patent GB-1205385-A (GB)
Title: Process for the preparation of 2-alkylaminocoumarans
Inventor: EITEL ALFRED
IPC: C09B/
Filed: 1969-03-05
Abstract: 1,205,385. Amino-2-alkylcoumarans. FARBENFABRIKEN BAYER A.G. 5 March, 1969 [13 March, 1968], No. 11720/69. Heading C2C. Amino-2-alkylcoumarans of the formula wherein R represents a C 1-4  alkyl group, are prepared by reduction of benzofurans of the formula wherein R<SP>1</SP> represents an amino or nitro group, at 50-200 C. in an inert solvent under a pressure of 5-100 atmos. gauge over a Pd catalyst, the amount of Pd present being at least 1.3% by wt. based on benzofuran reactant. A Pd/charcoal catalyst is preferred. Specified solvents include alcohols and ethers. The catalyst may be regenerated by washing with solvent. The product may be isolated as an acid addition salt, eg. with HCl. Examples describe the preparation of 5- and 7-amino-2- methylcoumaran. Amino - 2 - alkylbenzofurans may be prepared by catalytic reduction, over Raney Ni, of the corresponding nitro-2-alkylaminobenzofurans.
Patent GB-772667-A (GB)
Title: Improvements in or relating to prefabricated buildings
IPC: E04B7/02
Filed: 1954-04-23
Abstract: 772,667. Buildings. FOSTER, D. B. July 25, 1955 [April 23, 1954], No. 11778/54., Addition to 737,653. Classes 20(1) and 20(4) The inner walls 7 of a building constructed as in the parent Specification, are made smooth at the joints of the inner cladding by providing spaced timber uprights 9, 10 inside the frame of the wall to which the alufinium cladding sheets can be nailed, thus providing smooth abutting edge. joints. Ceiling panels may be similarly constructed. The wall frame comprises. extruded aluminium corner uprights with grooves to receive the inner and outer aluminium sheets and other intermediate extruded sections 2 with grooves to receive the cladding sheets of internal walls. The abutting joints of the outer wall sheets are covered by nailing on aluminium cover strips 11. The wall frame may also be provided with diagonal wired bracing 31 with wood top 32 to which the cladding sheets may also be nailed. The top of the wall, Fig. 3, is provided with an upwardly facing channel section in which spaced brackets 18 are secured each to carry a joist 15 is nailed at 17 and supported also at 16. The aluminium ceiling panels 13 are accommodated in the groove 14 and are nailed to the joists. Brackets 20 are provided to support the corrugated aluminium roof sheets 19. Such sheets are supported at the ridge 21 which is supported on the joinsts 15 at the top 25 of a partition wall. Similar supports for the roof sheets may be provided between the ridge and the eaves. Specification 743,781 is referred to.
Patent GB-1337533-A (GB)
Title: Cardan universal joints
IPC: F16D3/41
Filed: 1972-03-14
Abstract: 1337533 Universal joints GLAENZER SPICER SA 14 March 1972 [5 May 1971] 11782/72 Heading F2U In a Hooke's joint, radial play between the cross-pins 6 and the bases 3 of the trunnion bearing cups 1, is prevented by pre-loading, by forming the bases 3 as separate discs which are a dovetailed snap in fit into a groove 1b in the cup 1, and by a dishsed retaining plate 4, which, when clamped rigidly against the end-face 2b of the fork 2, by screws 5, distorts slightly in contact with the base-disc 3, which is dimensioned to be slightly proud of the fork surface 2b before clamping. The bearing cups 1 have pressed-out lugs la at their outer ends to implant into the fork 2 on being press-fitted, thereby preventing rotation, and the base-discs 3 are of low friction coefficient metal, alloy or plastics material.
Patent GB-818957-A (GB)
Title: Improvements in or relating to vents for casks
Inventor: BUTLER PETER DESMOND
IPC: B67D1/02
Filed: 1957-04-11
Abstract: 818,957. Reciprocating pumps. MITCHELLS & BUTLERS Ltd. April 10, 1958 [April 11, 1957], No. 11845/57. Drawings to Specification. Class 102(1). [Also in Groups XVII and XVIII] A cask connected by a pipe to a remote pump has a pipe leading from a vent hole to a tap adjacent the remote pump for controlling the admission of air to the cask-
Patent GB-709784-A (GB)
Title: Improvements in or relating to capsules
IPC: B31B5/74
Filed: 1952-05-12
Abstract: 709,784. Stoppers; metal-foil cups. FIRMA VEREINIGTE KAPSELFABRIKEN NACKENHEIM AKT.-GES. May 12, 1952 [May 10, 1951; May 17, 1951], No. 11904/52. Classes 18 and 125 (3) Metal foil cup capsules which are to be filled with powder, for example, are provided in the base with a protuberance so that when a number are nested together they do not stick together and may readily be separated. The capsules are wound on a conical mandrel from strips of metal foil and the narrow end is bent over to form the base with a central portion 5, Fig. 4, projecting within the capsule. The base is then pressed between a plunger and a die to consolidate the base. Fig. 11 shows a number of capsules nested together. The strips of metal foil may be cut or formed in various ways such as the curving of the edges or forming one edge corrugated the resulting toothed edge fitting together when wound to form the central projection. Fig. 3 shows the metal foil strip wound into conical shape before the end is bent inwardly at the lines 3, 4. Fig. 12 shows the capsule covering a corked bottle.
Patent GB-858116-A (GB)
Title: Improvements relating to transistor switching circuits
Inventor: FLORENTIN JOSEPH JOHN
IPC: H03K17/66
Filed: 1956-04-19
Abstract: 858,116. Transistor switching circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 10, 1957 [April 19, 1956], No. 11920/56. Class 40(6). In a circuit for switching current in either direction through a load L Fig. 1, two transistors Tl, T2 are fed from a common supply line 7 with the load connected between electrodes which conduct in the same direction. When the base of transistor Tl is biased negatively, current flows through resistor R2, load L and transistor T1. In a similar manner when transistor T2 is rendered conducting current flows through resistor R1, load L and transistor T2. No current flows through the load L when both of the transistors T1, T2 are either biased off or rendered fully conducting. In a modification, Fig. 2 the resistors are replaced by transistors T3, T4. Either of the pairs of transistors T1, T4 or T2, T3 is made conducting to pass current in one or other direction through the load L. With all the transistors biased off or fully conducting no current flows in the load.
Patent GB-905736-A (GB)
Title: Improvements in or relating to brushes
IPC: A46B11/06
Filed: 1960-04-05
Abstract: 905,736. Self-feeding brushes. COHEN, E. July 5, 1961 [April 5, 1960], No. 11934/60. Class 19. In a brush having a hollow stock 5 through which water or other liquid may be fed to the bristles 8 and which is formed with an inlet duct 10 receiving a liquid-supply nozzle 12, the nozzle 12 is provided with at least one hole 34 which extends alongside the bore 24 thereof, one end 36 of each hole being open to the atmosphere and the other to the interior of the duct 10 so that the discharge from the nozzle can draw air into the stock. As shown, the nozzle 12 is screwed into one end of a detergent container 13 having pellets 21 of detergent therein, a nozzle 19 connected to a length of hose being screwed into the other end of the container. A rubber plug 28 having one or more radial holes 29 may be pushed into the section 22 of the nozzle bore to retain a gauze filter 27 therein. If the detergent container 13 is dispensed with the air holes 34, 36 may be formed in the nozzle 19 which is screwed directly into the inlet duct 10. Specifications 688,488 and 793,119 are referred to.
Patent GB-858059-A (GB)
Title: Manufacture of solutions of polyamides of high molecular weight
IPC: C08J3/09
Filed: 1957-04-11
Abstract: High molecular weight polymers are dissolved in a solvent consisting wholly or partly of trifluoroethyl alcohol.  Specified polymers are linear and branched chain polyamides, polyureas, polythioureas and polyurethanes.  Co-solvents and diluents specified are water, methanol, b -chloroethanol, trichloroethanol, butanediol, chloroform, tetrahydrofurfuryl alcohol, methylene chloride, trichloroethylene, formyl tetrahydrofurfurylamine, formic acid, acetic acid, dichloroacetic acid, trifluoroacetic acid, formamide, dimethyl formamide, m-cresol, resorcinol, hexamethylene glycol and triethylene glycol.  Plasticizers, e.g. lactams, higher phenols and aryl sulphonalkylamides may be present in the solutions.  The examples describe the preparation of solutions in trifluoroethanol of: (1) and (2) polycaprolactam, (3) polyhexamethylene sebacamide, (4) a copolyamide of E-caprolactam and hexamethylene adipamide, (5) a copolyamide of caprolactam, hexamethylene adipamide and the adipic acid salt of 4:4-diamino-dicyclohexylamine, (6) a branched chain polyamide made from E-caprolactam and a styrene-maleic anhydride copolymer, (7) a branched chain polyamide made from E-caprolactam and a vinyl pyrrolidone-acrylic acid copolymer, (8) a copolyamide of hexamethylene terephthalamide and E-caprolactam, (9), (10) and (18) poly a -pyrrolidone, (11) a polypeptide made from a -amino-n-butyric acid-N-carboxylic anhydride and a -amino isobutyric acid-N-carboxy anhydride, (12) polyhexamethylene urea, (13) polyhexamethylene oxamide, (14) and (15) the polyoxamide of 1:4-tetramethylene bis-g -aminopropyl ether, (16) a polyurethane made from 1:4-butanediol and hexamethylene diisocyanate, (17) poly-w-aminoundecylic acid and (19) w-aminoundecanoic acid.  The examples describe also the dilution of the trifluoroethanol before or after solvation with methanol, glacial acetic acid, water, m-cresol, hexamethylene glycol, ethylene chlorhydrin or dichloroacetic acid and the casting of the solutions into films.  Specifications 461,236 and 461,237 are referred to.
Patent GB-513859-A (GB)
Title: Improvements in or relating to visual voltage indicators
IPC: H03J3/14
Filed: 1938-04-21
Abstract: 513,859. Wireless receiving circuits ; current and voltage measurements. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 21, 1938, No. 11938. Convention date, April 21, 1937. [Class 40 (v)] [Also in Group XXXVI] The response of a visual resonance indicator in a wireless receiver is made substantially the same on weak and strong signals by causing the a.v.c. potentials, which operate the indicator by varying its control electrode potential, also to vary the positive potential of the indicator tube target. The indicator tube T which is of the type described in Specification 481,790, having a target 16 and control electrode 19 is combined with a triode amplifier to the control grid 14 of which are applied a.v.c. potentials derived from the signal rectifier 1. The control electrode 19 is connected to the anode 15 of the associated triode and its negative potential with respect to the target 16 thus decreases with increase in a.v.c. voltage applied to the grid 14, i.e., with increasing signal ; at the same time, increase in a.v.c. voltage decreases the anode current of the controlled valve 9 and the reduced voltage drop in the resistance R causes the positive potential applied to the target 16 from source B to increase. The indicator tube is thus made highly sensitive to weak signals while with powerful signals the increase in target potential causes the deflecting power of the control electrode 19 to be less effective. The shadow angle thus tends to be substantially the same irrespective of relative signal strength.
Patent GB-849785-A (GB)
Title: Improvements relating to gas cookers
Inventor: ALLEN JACK
IPC: F24C15/08
Filed: 1958-04-16
Abstract: 849,785. Gas-heated ovens. FLAVEL & CO. Ltd., S. June 17, 1959 [April 16, 1958], No. 12060/58. Class 126. In a gas cooker oven, a false crown 14 is hinged along one edge, preferably the front edge 16, to a frame member (not shown) or other fixed part and is normally retained in position by a releasable catch 23 at its opposite edge so that it may be swung down into the dotted line position, Fig. 1, for cleaning. The stem 24 of the catch passes through slots 25 and 26 at right angles to each other in the crown 14 and a frame member 27 respectively and carries a spring 28 abutting against the member 27 and a washer 29 retained on the stem by a split pin 30. To release the false crown 14, the catch 23 is turned through 90 degrees and passes through the slot 25. The edge 16 is hinged at each side, the portion 34 between the hinges being cut away to allow combustion products to pass into a flue 32 between the false crown 14 and the top 13 proper of the oven and thence through an outlet 33 in the rear wall of the oven.
Patent GB-1151676-A (GB)
Title: Dismountable Dough Ring Forming Device
IPC: A21C11/16
Filed: 1968-03-13
Abstract: 1,151,676. Extrusion nozzles. DCA FOOD INDUSTRIES Inc. 13 March, 1968 [9 Oct., 1967], No. 12139/68. Heading B5A. [Also in Division F2] To couple nozzle 23 of an extrusion moulding machine to the feed section 11 of the machine, the nozzle is provided with a collar 26 having grooves 30 on its inner surface, and feed section 11 has detents 22, e.g. steel balls, which are fixed in a collar 19 and co-operate with grooves 30. The embodiment described concerns a machine for extruding dough rings and comprises a cutter ring (38), Fig. 1 (not shown), and an axially reciprocable sleeve (14) having a cutting edge (40).
Patent GB-464234-A (GB)
Title: Improvements in or relating to calculating devices
IPC: G06G1/12
Filed: 1936-04-29
Abstract: 464,234. Calculating - apparatus. SIMON, F. April 29, 1936, No. 12163. [Class 106 (i)] A device for computing results in terms of percentage relations comprises two relatively movable parts each bearing a logarithmic basic scale and one part bearing at least one result scale directly expressing the percentage relation of any two numbers aligned on the basic scales. As shown in Figs. 1 and 2, the device consists of two discs a, b and may be provided with a third slidable part in the form of a marginal ring c. The disc a has a basic logarithmic scale d and two results scales f, g viewable through apertures I, III and IV in the ring c and disc b respectively. The basic logarithmic scale e on the disc b is viewable through an aperture II in the ring c. In a modification, additional scales may be provided to facilitate calculations involving systems of currency.
Patent GB-1022411-A (GB)
Title: Improvements in solar heated buildings
IPC: E04B1/76
Filed: 1961-04-06
Abstract: 1,022,411. Domestic buildings. E. M. MORGAN. March 29, 1962 [April 6, 1961], No. 12351/61 Heading E1A. [Also in Division F4] A domestic building, Fig. 1, is adapted to be maintained at a substantially habitable temperature solely by the sun and/or electric lights by the provision of heat transfer surfaces which are both capable of reflecting and absorbing radiant heat and are in thermal conductive relationship with heat storage material disposed within heavy insulation for insulating properties of which the Specification should be referred to. As an example, the walls 2, Fig. 2 are constructed from 9 inch concrete 14 protected by a layer of bituminous felt 18,5 inch of foamed polystyrene 15, insulation board 16 and a bituminous felt 18; the foamed polystyrene being in the form of slabs supported by wooden rails and posts. The wall 3 consists of glazed skins 35, 36 which are separated by a passage 37 and provided with pivoted windows 38, louvres 39, 40 and sloping glass sheets 41. Pivoted insulating shutters are disposed between the members 35, 36, Figs. 9 and 10 (not shown). Corrugated reflective surfaces are provided above and below the passages 37 together with a heat insulating screen behind a lower part of the wall, Fig. 6 (not shown). The inner skin of the "solar" wall may be made of heat absorbing material, Fig. 7 (not shown). The roof, Fig. 4, consists of a concrete layer 26, a vapour barrier 30, an insulating layer 27 of foamed polystyrene, two layers of insulation board with joints staggered and an outer covering of bituminous roofing felt 29.
Patent GB-957036-A (GB)
Title: Card punching mechanism
IPC: G06K/
Filed: 1963-03-28
Abstract: 957,036. Selective punching machines. SPERRY RAND CORPORATION. March 28, 1963 [April 10, 1962], No. 12369/63. Heading B4B. A card punching machine having at least one punching tool and actuating means reciprocable to drive the tool operatively against the cards is characterized in that the actuating means are guided by at least one flexible member which is secured in place in order to limit displacement of the actuating means transversely to the direction of reciprocation and which is bendable in order to permit reciprocable movement in said direction. A card T, Fig. 1B, is punched by means of a line of punches 10 which are actuated by means of a striker bar 12 through the intermediary of spring-influenced pivotallymounted interposers 18 and a rocking lever 20. The bar 12 is secured to a carriage 100 which is secured at its ends to a pair of pillars 104 which are supported upon the one ends of leaf springs 108, the other ends of which are secured to another pair of pillars 110 fixed to the frame 80 of the machine. The interposers are normally latched by means of the arms 22a of bellcranks 22 and selected interposers are released from latching position when associated solenoids 40 are energized. Eccentrically-mounted stops 72 limit the return motion of the bell-cranks which are prevented from rebounding off the stops by means of cushioning levers 24. The selected punches are extracted from the card by means of a stripper bail 60. The carriage is reciprocated by means of cams 134 on a drive shaft 130 engaging follower rollers 136 sup. ported by the carriage. The carriage is returned after each punching stroke by means of springs 140 acting downwardly against U- shaped seats 142. In a modification, Fig. II, a pair of leaf springs 108 are secured at the one ends to a bracket 210 fixed to the frame 80<SP>1</SP> of the machine and at the other ends between the lower end of a carriage 100<SP>1</SP> and a striker bar 12<SP>1</SP> secured thereto. The upper end of the carriage forms a yoke 200 which rotatably receives and is mounted upon a disc 202 eccentrically carried upon a drive shaft. Specification 895,080 is referred to.
Patent GB-1095754-A (GB)
Title: Improvements relating to the fastening of an encircling body to a shaft
Inventor: SIME ALAN JOSEPH
IPC: F16D1/096
Filed: 1964-03-24
Abstract: 1,095,754. Securing hubs on shafts. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 9, 1965 [March 24, 1964], No. 12397/64. Heading F2U. An electric motor rotor 1 is secured by its hub 2 to a shaft 4 by a split collar 3 frictionally contracted thereon by tapered cotters or dowels 6, 7 mounted in the ends of correspondingly tapered holes formed as through recesses in the mating external and internal surfaces of the collar 3 and hub 2 respectively, the tapered cotters 6, 7 being drawn together by tie-bolts 8 which freely pass through the cotters 7 and are screwed in the cotters 6, the cotters additionally serving to axially and rotationally positively key together the hub 2 and split collar 3. The tie-bolts 8 may be plain rods screwed each end to utilize separate collars and nuts 11, 10, or may be formed integrally therewith. A further collar 13 fast on each tie-bolt and an end plate 17 serve to assist removal of the tapered cotters when dismantling the assembly. A key (15 (Fig. 2, not shown) may be fitted between the split collar 3 and shaft 4.
Patent GB-494737-A (GB)
Title: Improvements in lubricating apparatus
IPC: F16N5/02
Filed: 1937-04-30
Abstract: 494,737. Grease guns. TECALEMIT, Ltd. April 30, 1937, No. 12429. Convention date, May 22, 1936. [Class 102 (i)] A lubricating-device comprises a reservoir 1 having a follower piston 25 and a pump plunger 11 secured to a rod 21 which extends through the wall 2 of the reservoir and has a piston 10. A detachable air motor is secured to the reservoir by threads 8 and comprises a piston 41 connected by a rod 37 to a second piston 35 which engages the piston 10. When the air supply is connected, air passes to the cylinder 6 and acting on piston 10 forces it against piston 35 and moves the plunger 11 on its suction stroke. Air also passes through ports 4 and acts on the follower piston 25 When a valve is actuated by a trigger, air is passed through ports 71 to cylinder 33 to act on piston 35 and also passes through ports 77 to the cylinder 43 to cause discharge stroke of the plunger 11. Several reservoirs 1 of different lubricant may be provided for each power head. The reservoir may be filled through the opening 17 or by pulling the piston 10 and actuating the piston 25 when the power head is removed. Specification 459,826 is referred to.
Patent GB-829472-A (GB)
Title: Improvements in or relating to gloves or other hand coverings
IPC: A41D13/08
Filed: 1958-04-18
Abstract: 829,472. Oven gloves. TAYLOR, C. J. July 15, 1958 [April 18, 1958], No. 12443/58. Class 141  An oven glove comprising pockets 14 at opposite ends of a strip 10 is made of polymethane foam plastic or other heatresistant synthetic crepe material. The pockets may be either rectangular or in the form of mittens as shown and are formed by folding back the ends of the strip or by attaching separate pieces of material. The centre portion of the strip may be narrower than the ends.
Patent GB-275166-A (GB)
Title: Improvements in or relating to butt joints
IPC: B60B1/00
Filed: 1927-05-10
Abstract: 275,166. Simmen, O. Aug. 2, 1926, [Convention date]. Connecting-rods; flywheels. - In a butt joint secured by bolts or studs, loose thrust-blocks e are placed in recesses in the abutting members a, b and in the cover plates c so that the abutting members are forced together when the bolts are tightened. The axis of the blocks passes through the point where the line of thrust of the bolts meets that of the cover plate. Fig. 3 shows the application of the device to a flywheel rim and Fig. 5 to a connecting-rod end, the cover plate c being U-shaped. The loose block may comprise two wedge-shaped parts so that its effective breadth may be adjusted.
Patent GB-264715-A (GB)
Title: An improved system of concrete block building construction
IPC: E04B2/02
Filed: 1926-05-17
Abstract: 264,715. Maxwell, G. May 17, 1926. No Patent granted (Sealing fee not paid). Blocks, special shapes of; slabs. A cavity wall is formed by using plain slabs such as C, D, Fig. 3, abutting against the special blocks shown in Fig. 5. The latter blocks comprise a slab with two or more parallel flanges H projecting at right angles thereto, each flange being provided with a V-shaped notch G, so that intercommunicating vertical and horizontal channels are formed in the completed wall.
Patent GB-553634-A (GB)
Title: Treatment of textile materials
IPC: A41B3/10
Filed: 1941-09-27
Abstract: 553,634. Stiffening collars and cuffs. TOOTAL BROADHURST LEE CO., Ltd., and CORTEEN, H. Sept. 27, 1941, Nos. 12560 and 15781. [Class 141] [Also in Group VIII] .A method of forming a collar or cuff having a tendency to fold along a pre-determined crease-line comprises applying solid thermoplastic material, e.g. cellulose acetate, and hot-pressing the folded fabric first at the crease-line, so that less of the thermoplastic material remains in the crease-line than in the surrounding area. In a modification the fabric is hot-pressed in a direction normal to the plane of the fabric. The thermoplastic material may be applied as a separate sheet or as separate threads or as a layer of woven material including thermoplastic threads. The folds of the fabric may be separated by a thin rigid, e.g. metal strip during pressing. A solvent such as acetone may be used to assist fusion. The collar may be formed as described in Specification 512,316. Specification 540,086, [Group VIII], also is referred to.