baber/WOPTO huggingface dataset:
Patent GB-302579-A (GB)
Title: Improvements in calorimetric apparatus for the study of explosives
IPC: G01N25/26
Filed: 1928-12-13
Abstract: 302,579. Soc. des Usines Chimiques Rhone-Poulenc, (Assignees of Etablissements Poulenc Freres). Dec. 17, 1927, [Convention date]. Void [Published under Seet. 91 of the Acts]. Calorimeters.-The closure for a bomb calorimeter carries the means for igniting the charge and also the means for carrying away the residual gases. The closure block 1 carries the screw plug 2 in which is mounted the terminal 3 conveying current to the electrode 4 passing through the block and terminating within the calorimeter. There is also mounted in the block 1 a screw plug 8 carrying a valve 10 which controls the egress of the gases which pass along the passage 7 in the block. The axial bore 12 of the valve is turned outwards near the extremity 11 and communicates with an annular space in a capsule 13 screwed into the block 1. The valve terminates in a squared part 17 to which is connected a member 20 which can be connected bv its extremity 21 to the device for collecting the gases.
Patent GB-1529792-A (GB)
Title: Concrete manhole shaft liners
IPC: E03F5/02
Filed: 1975-11-24
Abstract: 1529792 Manhole shaft liners B HERBERT 24 Nov 1975 [22 Aug 1974] 36887/74 Heading E1C A manhole shaft of rectangular, circular, hexagonal or other cross-section is lined by one or more pairs of superposed identical concrete tubes 11, 12 alternately inverted so that semi-circular edge recesses 13 mate to form thin knock-outs for pipework. Each tube 11, 12 may have a ridge 14 forming a rebate so that superposed pairs define peripheral grooves for mortar.
Patent GB-1117491-A (GB)
Title: Air diffuser construction
IPC: F24F13/06
Filed: 1965-08-27
Abstract: 1,117,491. Ventilators. I. M. CLARK (Air Devices, Inc.). 27 Aug., 1965 (No. 37003/ 65. Heading F4V. An air diffuser mounted in an aperture 21 in a ceiling B comprises superimposed upwardly concave plates E, F, each plate having radially extending grooves, 30, 33 separated by ridges 31, 34 and the grooves of one plate being angularly offset with respect to the grooves of the other plate (Fig. 2a, not shown). The air outlets between the periphery of the upper plate and the ceiling and between the upper and lower plates are thus of convergent-divergent form so that the air issuing through the outlets is formed into a plurality of radial jets. The upper plate F has a central aperture 29. Each plate may be formed as an eight or four points star (Figs. 3 to 6, not shown) and more than two plates may be provided.
Patent GB-1141084-A (GB)
Title: Process for the production of a piston blank
IPC: B21K1/18
Filed: 1967-08-11
Abstract: 1,141,084. Making pistons; forging; extruding. MAHLE K.G. 11 Aug., 1967 [17 March, 1967], No. 37019/67. Headings B3A, B3H and B3P. In a process for making a pressed piston blank having a light metal body and a ring carrier embedded therein of a material having greater hardness at higher temperatures, a preliminary body 10 corresponding approximately to the desired piston form is pressed from a light metal slug so that at its head end the diameter is reduced to the internal diameter of the ring carrier and parts protrude axially beyond the final crown surface. A ring-carrier blank 30 is shrunk on to a shoulder 14 formed at the transition to the reduced diameter head end, so that it is non-displaceable on the preliminary body. The preliminary body is then placed head downwardly into a second pressdie and a plunger 43, corresponding in form to the internal shape of the blank forms the piston crown in co-operation with a bottom insert 42 and die liner 41. As the plunger 43 forms the piston crown it forces the carrier blank 30 downwardly in the die until it abuts a shoulder 45 in the liner 41. The piston blank is finally machined to size and a ring groove formed in the blank 30, which may have irregular depressions formed in its surface into which the piston material is forced, Fig. 5 (not shown). The piston body may be of aluminiumsilicon alloy containing more than 12% silicon and it is formed at about 480‹ C. The ring carrier blank is heated to 450-500‹ C. before it is placed on the preliminary body, which is thereafter heated to this temperature range so that the part 13 expands and presses itself against the blank 30, its surface partly penetrating into the depressions on the latter.
Patent GB-1255424-A (GB)
Title: Improvements in or relating to cameras or other articles with carrying straps
IPC: A45C11/38
Filed: 1969-07-23
Abstract: 1,255,424. Stud and socket fastenings. BALDA WERKE PHOTOGRAPHISCHE GERATE UND KUNSTSTOFF R. GRUTER K.G. 23 July, 1969 [24 Sept., 1968], No. 37022/ 69. Heading E2B. [Also in Division G2]  A camera or other article is fitted with a carrying strap 2 of which at least one end portion is releasably connected to the camera or other article 1 by means of a releasable connection comprising a first piece 4 having lipped over flanges defining a recess 8, and a second piece having an enlarged head, said flanges engaging the enlarged head of a projection 7 of the second piece 10 to prevent sideways release of the two pieces but not preventing relative sliding movement of said two pieces, the second piece being insertable into said recess through an opening provided for this purpose in said first piece and a spring catch 14 being engageable with one of the pieces to prevent it sliding relative to the other and having a release surface by means of which the catch can be manually released to permit the pieces to be. slid apart until the head can be removed from behind said flanges through said opening to disengage said pieces, and one of said pieces 4 being attached to the at least one strap end portion and the other 10 to the article. In the construction shown in which each end portion of the strap has a respective connecting piece 4, the spring catch 14 has a nose 13 which is engageable in a recess 12 in the outer face of the connecting piece 10. In an alternative construction in which both end portions of the strap are connected to a single connecting piece the connecting piece is retained in engagement with the connecting piece by a spring catch connected to the body of the camera and which engages one end of the connecting piece on the straps. The or each end portion of the strap is connected to the connecting piece by being passed into a recess and secured by a rivet.
Patent GB-1522014-A (GB)
Title: Hydraulic system for a vehicle including an auxiliary hydraulic control circuit
IPC: B62D5/07
Filed: 1975-09-09
Abstract: 1522014 Vehicle steering systems CATERPILLAR TRACTOR CO 9 Sept 1975 [1 Oct 1974] 37085/75 Heading B7H An earthmoving vehicle has hydraulic circuitry for controlling steering, braking and an implement coupling device. A pump 11 supplies an open centre steering control valve 24 via a flow control and pressure relief valve 13 and output from the steering valve 24 is connected to both a brake control circuit 14 and the implement coupler control circuit 15. The brake control circuit is of the open centre type and is provided with a pressure limiting valve 40. The coupler circuit includes a manually operated valve 34 controlling the locking cylinders 35, 36 of the coupler and a velocity fuse 32 and orifice 33 for limiting the flow rate to the valve. The pump delivers fluid at about 2,500 p.s.i. to the valve 13 where it passes via bores 17, 19 and conduit 22 to the steering valve. Should the flow rate exceed 11 g.p.m. the body defining bores 17, 19 moves against spring 21 and fluid spills back to reservoir. If the pressure rises above 2,500 p.s.i. a relief valve 41 opens and fluid is returned to reservoir via line 42. The pressure relief valve 40 of the brake control circuit opens at about 300 p.s.i. thus allowing the steering and braking circuits to be used simultaneously. Fluid exhausted from the steering cylinders is at about 10-15 p.s.i. if the brake system is inoperative and this pressure is insufficient to operate the coupling cylinders 35, 36. Only after the pressure increase caused by operation of the brakes may the coupler be operated, flow to the coupler valve 34 being stopped above 3 g.p.m. by the velocity fuse 32 being restricted to 2 g.p.m. by the orifice 33.
Patent GB-1157146-A (GB)
Title: Method and apparatus for preparing Webs of Paper provided with Water Marks and suitable for the Printing of Documents such as Banknotes
IPC: B41F13/00
Filed: 1966-08-18
Abstract: 1,157,146. Number-printing. MASCHINENFABRIK GOEBEL G.m.b.H. 18 Aug., 1966 [20 Aug., 1965], No. 37117/66. Heading B6C. [Also in Divisions B4 and B8] Paper webs which have a repeated watermark thereon are provided with one or more continuous series of perforations in register with the watermarks whereby during subsequent printing of the webs for producing, e.g. bank notes, the perforations can be employed to register the printing with the watermarks. In apparatus for carrying out the perforating, a watermarked web 1 passes from a roll 2 to feed rollers 3, 4, a guide roll 6, over a table 8, between perforating discs 12, 13 over a guide roll 19, between feed rollers 20, 21 to a wind-up roll 23. The rollers 20, 21 may be a pin-wheel feed engaging the perforations formed by the discs 20, 21. Between the rollers 4, 3 and roll 6, an electrical device 7 causes the machine to be stopped if a fault in the web is detected by the device. The faulty part may be cut out by knives 9 provided above the table 8 and the resulting ends of the web joined in correct register by adhesive strip. The feed rollers 3, 4, 20, 21 are driven from a shaft 31 which is coupled by gears 32, 33 to an infinitely variable gear 30 the output shaft 34 of which drives the perforator discs 12, 13. A photo-electric scanning device 11 detects a predetermined place in each watermark and causes an impulse to be transmitted to an amplifier 37. These impulses are compared in known manner with impulses transmitted to the amplifier by an electrical contact on the shaft 35 of the disc 13. If there is a time difference between the impulses due to the perforating device not operating in register with the watermarks, an auxiliary motor 38 is started to adjust the gear 30 so that timing of the perforator is corrected. Each line of perforations may be formed by pins on one of the discs 12, 13 coacting with bores in the other disc, or the lower disc 13 may have projections corresponding to the size of the required perforations and be rotated at the web speed, the counter tool being constructed as a milling cutter rotating at a higher speed. For removing dust, a casing 14 encloses the perforator and has suction ports 15, 16 and blowing nozzles 17, 18. Beyond the casing 14, rotary brushes 25 connected to suction devices may be provided. Number printing.-Beyond the feed rollers 20, 21, a counter 27 which registers the number of sheets in the web is provided and may be operated by optical scanning of the perforations or, if the rollers 20, 21 are of the pin-feed type, the device 27 may be driven from the rollers. A number-printing mechanism 28 is controlled by the counter 27 so that a consecutive number is printed on the web whenever a predetermined number of perforations corresponding to a sheet length passes through the numbering mechanism.
Patent GB-851518-A (GB)
Title: Improvements relating to hydraulic brake systems for vehicles
IPC: B60T13/10
Filed: 1958-11-19
Abstract: 851,518. Servo-assisted braking systems. DAIMLER-BENZ A.G. Nov. 19, 1958 [Nov. 23, 1957], No. 37259/58. Class 103 (1). In an hydraulic brake system for vehicles, the direct hydraulic transmission between the brake pedal and the wheel brake cylinders is interrupted by the insertion of a mechanical transmission means and a secondary hydraulically operated brake which is engageable with a port driven in accordance with the motion of the vehicle and which is connected in parallel or shunt with the direct transmission comprise a movable brake member which, during a braking operation, is made active by hydraulic pressure so as to become operative on the inserted mechanical transmission means for intensifying the braking action. In the embodiment illustrated, when pressure is applied to the brake pedal 10 the brake cylinders at the wheel brakes (not shown) are operated directly through the combined hydraulic and mechanical transmission 11, 12, 13, 15, 17, 19 and a disc brake 23 forming a secondary brake is simultaneously operated through the shunt hydraulic circuit 24. During travel of the vehicle in the forward direction the brake disc 22 rotates in the direction of the arrow and drives the caliper housing 28 of the disc brake in the direction of rotation about its pivot 26 in an anti-clockwise direction. An additional force in the direction of brake operation is thereby exerted on the rod 15 according to the lever ratio and the brake cylinders at the road wheels thus receive a higher pressure than would be possible with direct transmission alone. The disc brake 23 not only serves for the purpose of brake intensification at the road wheels but it also increases the total braking surface of the vehicle braking system. A hand brake arrangement may be provided to operate on the brake disc 22 through another caliper housing 29.
Patent GB-345356-A (GB)
Title: Improvements in or relating to planks or boards
IPC: B27M3/00
Filed: 1929-12-05
Abstract: 345,356. Preventing wood warping. FREEDLAND, J., Church Street, Smedley Lane, Cheetham, Manchester. Dec. 5, 1929, No. 37267. [Class 145 (ii).] Wooden boards, such as drawing boards or table tops, are prevented from warping by inserting metal rods B in holes across the grain, the rods being a slack fit to allow expansion. The ends of the holes are closed by plugs a<1>. In a modification, Fig. 6, the bar B<1> may be inserted in an open groove and held by screws in elongated holes. Various rods of T-, Fig. 8, or V -cross section may be used.
Patent GB-1002964-A (GB)
Title: Improvements relating to protective electric relays
Inventor: CAWTHORNE WILLIAM ROBERTSON
IPC: H01H71/34
Filed: 1963-09-23
Abstract: 1,002,964. Electromagnetic relays; protective cut-out arrangements. A. REYROLLE & CO. Ltd. Sept. 23, 1963, No. 37378/63. Headings H2B and H2K. In an overcurrent protective relay comprising a thermal element and an electromagnetic element, both elements responding independently over predetermined current ranges, the electromagnetic element is of the solenoid and plunger type and is delayed by a dashpot. When the relay is used in a motor starting circuit the characteristic of the electromagnetic element and dash-pot is adjusted so that it will not be operated by the switching transient which occurs when the motor is started. The plunger armature 25 is slidable in a silicone oil-filled cylinder 14 which is closed at one end by a biasing weight 22 made of magnetic material, e.g. " Radiometal " (Registered Trade Mark). On energization of the electromagnet the armature 25 is first moved within the cylinder until it approaches the upper end of the cylinder and then lifts the cylinder 14, weight 22, and an actuating rod 23 to close contacts 30, 31. The operating current is varied by a cam 16 which co-operates with the cylinder 14. A three-phase relay (Fig. 4) comprising three of the above electromagnetic elements and dash-pots and three thermal elements controls the three-phase supply 42A, 42B, 42C, to an electric motor. The relay contacts are connected to the trip coil of a three-phase circuit-breaker. The solenoids 10 of the electromagnetic elements are energized and heaters 43 of the thermal elements are energized from three line current transformers 44. Each thermal element is supplied through a saturable current transformer 45. Solenoids 10 of two of the electromagnetic elements are connected in series with the primaries of the associated transformers 45 but the third solenoid 10 is connected to the star point of the three current transformers 44 to provide earth fault protection.
Patent GB-368832-A (GB)
Title: Improvements connected with the manufacture of metal foil
IPC: B23K20/04
Filed: 1930-12-11
Abstract: 368,832. Compound sheet materials. FENNELL, W, Electricity House, Town Bridge, Northwich. Cheshire. Dec. 11, 1930, No. 37433. [Class 140.] Reinforced metal foil is produced by pressing the foil into the interstices of an open fabric consisting wholly or of a substantial proportion of non-metallic threads, the foil adhering to the fabric by reason of its being bent around the threads. One method of producing the foil, Fig. 3, is by drawing foil 3 and fabric 4 from reels 5, 6, respectively, and pressing between rolls 7 together Vi ith a resilient backing of sheet rubber drawn from a reel 9. The rolls 7 are of hard material, but the necessity for a resilient backing may be obviated by using one roll of yielding material. A roll and flat surface or two flat surfaces may be used to press the foil into the fabric. Specification 311,792, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-792697-A (GB)
Title: Improvements in or relating to machines for making cuts in concrete
IPC: E01C23/09
Filed: 1955-12-30
Abstract: 792,697. Hook fastenings. CLIPPER MANUFACTURING CO., Ltd. (Clipper Manufacturing Co.). Dec. 30, 1955, No. 37470/55. Class 44 [Also in Groups X and XXXI] A platform 40 of a concrete cutting machine is pivoted at 46 to a wheeled support 10, a spring 76 urging the platform in an anti-clockwise direction and the platform and support being rigidly interconnectable by latch means 80. The means comprises a link 82 pivoted at 84 to the platform and carrying a hook 86 engageable with the support 10. The link 82 is urged in a clockwise direction by a spring 88, and the hook 86 engages the support on depression of the platform by a treadle 78. The hook can be disengaged by a pedal 90 pivoted at 94 to the link and carrying arms 92 adapted to bear on the support. In a modification, Figs. 6 and 7 (not shown), a pivoted and spring urged hook member is carried by the support and engages with the platform when the latter is depressed by a pedal, the member being released by a foot plate thereon. U.S.A. Specification 2,736,544 is referred to.
Patent GB-930095-A (GB)
Title: Improvements in the manufacture of cyclohexanol and cyclohexanone from cyclohexane
Inventor: BENZIE ROBERT JOHN
Filed: 1960-11-01
Abstract: A process for the manufacture of cyclohexanol and cyclohexanone by oxygen-containing gas (e.g. air) oxidation of cyclohexane is characterised in that after steam stripping of hydrocarbons from the product the residue is neutralised with alkali, distilled in a short contact-time evaporator and the distillate fractionally distilled to separate cyclohexanol from cyclohexanone.  The cyclohexanol may be converted to cyclohexanone which is admixed with the main feed to the distillation train employed in the initial fractional distillation. Specifications 569,187 and 740,561 are referred to.
Patent GB-523217-A (GB)
Title: Improvements in or relating to electric blasting initiators
IPC: F42B3/103
Filed: 1938-12-28
Abstract: 523,217. Blasting initiators. DU PONT DE NEMOURS & CO., E. I. Dec 28, 1938, No. 37683. Convention date, Dec. 24, 1937. [Class 9 (i)] [Also in Group V] Rubber or like resilient plugs 17, Fig. 5, for the waterproof closure of electric blasting initiators have integral extensions 15 of oval or like cross-section, Fig. 4, smaller than that of the plug body. Such plugs are moulded in multiple moulds having mould chambers 10, 10 in aligned pairs in the lower element 2, Figs. 2A, 2B, and complementary chambers 10a, 10a in the upper element 1, Fig. 1A. Electric lead wires 19 are laid in pairs, with the central parts bared, across the element 2 and through aligned pairs of chambers 10. The upper mould element 1 has cutters 7 which sever the wires at the appropriate lengths for forming the bridge 16, when the elements are pressed together. The elements are steam heated and the plugs are vulcanized while in the, chambers. The mould elements have '' entries" " at 4, 4a, which have surfaces so formed as to corrugate the insulation 18 on the bridge wires 19.
Patent GB-333485-A (GB)
IPC: H01B13/30
Filed: 1929-12-09
Abstract: 333,485. Fintsch Akt.-Ges., J. Dec. 20, 1928, [Convention date]. Cables, apparatus for making. - In impregnation means for electric cables in which the cables are dried by exhaustion and heat before impregnations, the particles of moisture extracted are prevented from damaging the exhausting pump by trapping them within the treating vessel itself. In the form shown in Fig. 2, an impregnating vessel A is fitted with an interior chamber B into which passes a vapour pipe C, us shown. The gases pass off from the cylinder B by a pipe E to a pump F, the water &c. remaining in the chamber B. A tap G drains the chamber B. In the modified construction shown in Fig. 3, a chamber B, open at the top. is fitted with a cap H over the pipe E to prevent undesirable particles entering.
Patent GB-1291529-A (GB)
Title: Copper containing monoazo dyestuffs and process for their manufacture and use
IPC: C09B45/36
Filed: 1970-08-05
Abstract: 1291529 Copper complexes of monoazo dyes FARBWERKE HOECHST AG 5 Aug 1970 [5 Aug 1969] 37813/70 Heading C4P Copper containing monoazo dyes have the general formula wherein R is an alkyl radical; n is an integer from 1-3 and X is a grouping of the formula -SO 2 -CH 2 -CH 2 -Z, where Z represents an organic radical capable of being split off by an alkaline agent, e.g. a bromine atom, a phosphato, sulphato or thiosulphato group, a dialkylamino piperidino, morpholino, acyloxy or phenoxy group. The dyes can be prepared by a variety of methods including reacting an azo compound of formula where R<SP>1</SP> is hydrogen, hydroxy or alkyl with an agent donating copper or by oxidative coppering; reacting a dye of formula with an acylating agent or reacting a monoazo dyestuff of formula with an alkylating agent. The dyes give violet or navy blue shades on natural or regenerated cellulose fibres, wool, silk or polyamide fibres, polyurethane, polyacrylonitrile and leather.
Patent GB-1220067-A (GB)
Title: Improvements in typewriters and like machines
Inventor: BOSWELL DAVID
IPC: B41J29/24
Filed: 1967-08-17
Abstract: 1,220,067. Typewriters. STANDARD TELEPHONES & CABLES Ltd. 15 Aug., 1968 [17 Aug., 1967[, No. 37850/67. Heading B6F. In a typewriter, the number of words typed is counted by apparatus which senses a character print operation followed by a word space or line space and carriage return operation, or vice versa. In a first embodiment, a manuallyoperated typewriter includes microswitches 8, 9, 10 operated by a carriage return and linespace lever 1, type levers (not shown), and a space bar 7 respectively. The switch 9 acts to set a bi-stable (12), Fig. 2, not shown, to a first output condition, the switches 8, 10 acting to reset the bi-stable to a second output condition. A one-slot generator (13) detects the change from the first to the second condition and transmits a pulse to a counter (14) whenever such a change occurs. In alternative embodiments (not shown), further microswitches may be included to take into account back-spacing and other operations, or the apparatus may be applied to an electrically operated typewriter.