baber/WOPTO huggingface dataset:
Patent GB-809420-A (GB)
Title: Variable resistor and switch combination
Inventor: DAILY ARTHUR M
IPC: H01C10/32
Filed: 1955-12-12
Abstract: 809,420. Variable resistors. CHICAGO TELEPHONE SUPPLY CORPORATION. Dec. 12, 1955, No. 35615/55. Class 37. In a combination variable resistor and switch comprising a variable resistor mounted in a cylindrical casing with a rotary shaft passing through one end wall thereof and a switch mounted in a similar casing supported upon the opposite wall of the resistor casing, and wherein there is an aperture in said opposite wall through which the switch is actuated at a predetermined angular setting of the rotary shaft. the said opposite wall of the resistor casing is provided with an inward conical depression, the apex of which serves as an end thrustbearing for the mechanism carried by the rotary shaft. Due to the aperture through which the switch is actuated the wall is weakened but the conical depression provides an increased strength sufficient to withstand all normally occurring end-thrust forces. In Fig. 1, the shaft 7 is hollow and has plates 13, 131 secured on to its inner end by tongues 26 which project through slits in the plates and are then deformed. The plate 13<SP>1</SP> carries the movable contacts of the variable resistor; the spring pressure exerted by these holds the plate 13 against the apex of the conical depression 24 formed in the rear wall of the resistor casing. Mechanism 9 projects from the casing 6 housing the switch and is engaged by the lug 12 on the plate 13 as the shaft 7 is rotated, thus operating the switch. A further lug on the plate 13 cooperates with the abutment 45 formed in the casing of the resistor to limit the rotation of the shaft 7. In further embodiments of the invention the conical depression 24 has a central hole through which an axial pin rotating with shaft 7, either integral therewith or formed as a protruberance from the plate 13<SP>1</SP> passes to provide a side-thrust bearing in addition to that provided by the aperture 22 through the front panel 14 of the resistor. In the arrangement shown in Figs. 11 and 12, the shaft 7 is detachable. The plates 13, 13<SP>1</SP> are held together by a rivet 38 which also provides the pin 37 which passes through the aperture in the depression 24, and are each provided with a pair of slots through which pass spring fingers 41 formed on the end of the shaft 7 and so shaped that the shoulders 43 on the shaft are drawn up firmly against the front surface of the plate 13<SP>1</SP>.
Patent GB-999175-A (GB)
Title: Magazine-type transparency projector
IPC: G03B23/04
Filed: 1962-09-19
Abstract: 999,175. Magazine slide changing apparatus. FRANKE & HEIDECKE G.m.b.H., [trading as ROLLEI-WERKE FRANKE & HEIDECKE]. Sept. 19, 1962 [Sept. 26,1961], No.35642/62. Heading G2J. The apparatus comprises a projector magazine 17 movable parallel to the optical axis in guideway 52, and a slide changing claw ring 12 which conveys slides 15 successively from the magazine to the gate 14 and back again, the insertion and ejection claws entering the magazine or gate from below and the slides being moved by tilting through 90 degrees over a rail 16 from one position to the other. When key 1 is depressed, rod 3 turns rocker arm 4 pivoted at 24 to lever 9 which then turns claw ring 12 in a clock-wise direction through the pin and slot connection 10,11 under the action of spring 5 so that claw end 13 enters the gate and ejects slide 15 into the magazine. Arm 4 is halted by the engagement of pins 18 with latch 19 until ring 12 reaches the position at Fig. 4 when a pin 20 engages the other end of latch 19 and releases pin 18. Spring 8 which was tensioned by key 1 then returns arm 4 to the position of Fig. 1 while similarly tensioned spring 5, now beyond pivot 24, turns lever 9 clockwise and so returns claw ring 12 to the initial position, end 22 entering magazine 17 to feed the next slide to the gate against rails 25, 26. Magazine 17 enters guideway 52 against spring loaded cable 51 and its teeth 53 are engaged by resiliently mounted pawl 54 on pivoting lever 55 whose other end 56 is attached through pin and slot 57, 63 to shift pawl arm 58. When projection 23 on the returning claw end 22 pushes spring loaded arm 58 towards magazine 17 pawl nose 64 enters teeth 53 while pawl 54 is removed by lever 55; cable 51 then pulls the magazine to the left through a distance of slot 59 i.e. one tooth width. Motion of claw ring 12 is controlled by valved damping mechanism 27 which does not operate while projection 23 releases the magazine transporting device. The piston and cylinder form of this mechanism may be replaced by a rubber bellows with an air escape orifice. When key 2 is depressed simultaneously with key 1, lug 31 releases latch 32 to be moved by spring 33 into the path of pin 20 on ring 12 which is thus retained with claw end 22 clear of guideway 52; magazine 17 may then be replaced by another. Key 2 is locked in this position until released by depressing key 1 again.
Patent GB-1255110-A (GB)
Title: A method of securing electrical leads in motor vehicles
IPC: F16L3/22
Filed: 1970-07-24
Abstract: 1,255,110. Securing electric leads in motor vehicles. FORD MOTOR CO. Ltd. 24 July, 1970 [30 Aug., 1969], No. 35912/70. Heading B7B. A plurality of leads 1 are combined to form a trunking by a synthetic sheath 2 produced by injection moulding in situ, the sheath being formed integrally with a fastener 3.
Patent GB-1114307-A (GB)
Title: Tamper-proof actuator cap for pressurized and pump-type dispensers
IPC: B65D83/16
Filed: 1965-08-20
Abstract: 1,114,307. Pump type dispensers; pressurized dispensing containers. AEROSOL INVENTIONS & DEVELOPMENT S.A. (A.I.D.). Aug.20, 1965 [Sept. 18, 1964], No.35926/65. Headings F1A and F1R. An actuator cap for a dispenser of the pressurized or piston type has a disposable tab carried by and separable from the cap and overlying the actuator button on the valve or piston rod, the tab having a central aperture whereby the actuator button may be depressed by a slender instrument whereas the tab prevents finger actuation of the button until it is detached.
Patent GB-1415292-A (GB)
Title: Apparatus for lifting trees
IPC: A01G23/06
Filed: 1971-07-31
Abstract: 1415292 Luffing arm apparatus LINER CONCRETE MACHINERY CO and B M D WILLS 31 Oct 1972 [31 July 1971] 36105/71 Heading B8H Tree and stump uprooting and lifting apparatus comprises a base frame 1 on which a lift frame 2 is hinged for movement about hinge points 8, 9 into the position shown in phantom lines under the action of a telescopic ram 5, a tree clamp 4 being mounted on the frame 2 and having jaws 6 which are operable by a ram 7 to engage and penetrate the back of a tree by means of knife edges located on the jaws 6. The base frame 1 is provided with ground engaging skids at the location of the hinge points 8, 9 and with further skids at the other side thereof. The lift frame 2 is Y-shaped as shown in Fig. 2, the hinge points 8, 9 being located at the ends of the arms of the Y-shaped frame while the ram 5 is connected to its stem. The base frame 1 is coupled to a tractor as shown, hydraulic power from the tractor being supplied to the rams 5, 7 through a control valve (not shown). Instead of the ram 5 a mechanical power drive from the tractor may drive a worm drive or screw with nut runners to elevate the frame 2.
Patent GB-1529078-A (GB)
Title: Apparatus for the production of crushed ice
IPC: F25C1/147
Filed: 1976-09-02
Abstract: 1529078 Ice-making INTERCONTINENTALE ZIEGRA HANDELS - GmbH & CO 2 Sept 1976 [3 Sept 1975] 36339/76 Heading F4H In an ice-making apparatus comprising an upright cylinder 1 containing a driven auger for scraping ice off the inside surface of the cylinder and conveying it to an outlet, the outer surface of the cylinder is embraced by the evaporator of a compression-condensation refrigeration system. The evaporator is formed of coiled pipe sections 8a, 8b, 9a, 9b which are connected in parallel. The entries to the pipe sections are located at the two ends of the refrigerating zone of the cylinder and the exits 12 are located at the mid-portion of the cylinder and lead to a low pressure chamber 16 connected to the inlet of the compressor 15. The pipe sections are embedded in a layer of tin.
Patent GB-809255-A (GB)
Title: Apparatus for processing small parts by tumbling
IPC: C25D17/20
Filed: 1955-12-21
Abstract: 809,255. Electroplating-barrels. LISOWSKI, J. A., LISOWSKI, F. B., and LISOWSKI, L. E., [trading as NATURAL PRODUCTS CO.]. Dec. 21, 1955, No. 36621/55. Class 41. A tumbling receptacle A, B for containing small articles during electroplating in a bath is mounted for rotation in one direction, e.g. clockwise, through successive revolutions about a horizontal axis, the receptacle having at all times during tumbling an opening above the work. The receptacle comprises two baskets A, B, the leading edges A<SP>1</SP>, B<SP>1</SP> of which overlap radially and axially the trailing edges A3, B<SP>3</SP>, of the other basket. Each basket is secured at one end to a gear, e.g. F<SP>1</SP> for the basket B, having an interrupted portion F<SP>2</SP> and being driven by a gear G<SP>1</SP>. The portions F<SP>2</SP> on each gear are positioned to coincide with the gear G<SP>1</SP> when the corresponding basket is in its lowermost, work-supporting position, the basket hence being arrested in that position, and remaining there until the other basket passes over the top, closing the opening on the right and forming one on the left. The driven basket continues round and pushes the stationary basket through about 90 degrees until the gears thereof re-mesh, by which time the driven basket is arrested, and the cycle continues. Cathode leads extend through trunnions C to the interior of the receptacle, and anodes are disposed in the bath at each side of the receptacle.
Patent GB-1438266-A (GB)
IPC: B41B25/10
Filed: 1974-08-20
Abstract: 1438266 Justifying typewriters REALTY & INDUSTRIAL CORP 20 Aug 1974 36655/74 Headings B6F and B6W In a justifying typewriter wherein a trial line may be terminated when its length exceeds a prearranged amount, means is provided to prevent termination of a line in which the last recorded operation is a word space or underline. A wheel 2318 rotates on each operation of the justifying composing typewriter, each word space or underline operation during the justifying area of a trial line being marked by displacement of a pin 2319 on the wheel 2318. A wheel 2410 detects the last recorded operation, switching a switch block 2433 whenever a space or underline is detected. The switch block renders carriage return and reading of a trial line tape impossible until the space or underline has been deleted.
Patent GB-1236910-A (GB)
Title: A process for the manufacture of xylose and xylitol
IPC: C07C27/00
Filed: 1969-07-22
Abstract: 1,236,910. Xylose and xylitol. F. HOFFMANN-LA ROCHE & CO. A.G. 22 July, 1969 [26 July, 1968], No. 36685/69. Heading C2C. Xylose and xylitol are prepared by treating a material containing xylan and cellulose, e.g. grasses, and wood from deciduous trees such as beech, oak and ash, with a 1 to 5% aqueous oxalic acid solution at a temperature of 50 to 130 C. and, if desired, reducing the resulting xylose, preferably after decolorization and deacidification, to xylitol. The starting material is preferably fractionally washed with water at about 100 C. before treatment with the oxalic acid solution. The treatment with oxalic acid solution may be effected in two stages, the first using a 1% oxalic acid solution at about 100 C. and the second using a 3% oxalic acid solution also at about 100 C. The xylose may be decolorized and deacidified by filtration through a basic ion-exchange resin and then reduced by hydrogenation in the presence of Raney nickel at about 105-110 C. and 30 atmospheres to form xylitol.
Patent GB-949881-A (GB)
Title: Improvements in or relating to sheet feeding mechanisms
Inventor: BEER CLIFFORD NORTHMORE
IPC: B23Q7/10
Filed: 1961-10-12
Abstract: 949,881. Discharging sheets from piles. WEYBRIDGE MACHINE TOOL CO. Ltd. April 24, 1962 [Oct. 12, 1961], No. 36696/61. Heading B8S. A pile of metal sheets mounted on table 1 are discharged one by one from the top thereof by fingers 23 which push the top sheet to the right through rollers 31 on to rollerway 33. Fingers 23 are carried by sliders 12 which are reciprocated by crank 16 driven from motor 20. The sliders and motor are carried by carriage 10 running on wheels 11. The inventive step lies in the provision of magnetic floaters 24 so positioned as to cause the separation by repulsion of the two topmost metal sheets of the pile to assist the fingers 23 to make good engagement with the topmost sheet of the two. As the sheets are discharged from the top of the pile the table 1 is raised by ram 2 to maintain the level of the sheets. The pile of sheets is run on to table 1 by means of pallet 6 the wheels 7 of which run on to the rails 8 of table 1 and are clamped thereto by catch 9. Switches 25 and 26 control the height of table 1 and a switch 32 operates to stop the discharge of sheets whenever two sheets are discharged together.
Patent GB-367747-A (GB)
Abstract: 367,747. Atmospheric gas burners. HOMANN-WERKE W. HOMANN, Vohwinkel, Wuppertal, Germany. Aug. 19, 1930, No. 24729. Convention date, Feb. 6. Void [Published under Sect. 91 of the Acts]. [Class 75 (i).] Striking-back is prevented by constructing the burner so that the speed of flow of the gaseous mixture is always greater than the speed of ignition. The mixing-tube comprises a cylindrical part b of smaller cross-sectional area than the part a and having-a conical end c which forms with the correspondingly-shaped nipple d an annular air inlet e. The cross-sectional area of the latter is stated to be such that the mixture formed in the part b has the same speed of flow as the gas flowing through the nipple d.
Patent GB-1436378-A (GB)
Title: Prostaglandin derivatives
IPC: C07C67/00
Filed: 1973-08-02
Abstract: 1436378 Prostaglandins AMERICAN HOME PRODUCTS CORP 2 Aug 1973 [21 Aug 1972] 36785/73 Heading C2C The invention comprises (i) compounds of Formula II in which R<SP>1</SP> = CH 2 NO 2 , vinyl, Ph, Bz, Me, CN, SH, SAlkyl, SPh, CH(CN)COOH, CH(COOAlkyl) 2 , CH(CN) 2  or CH(CN)CONH 2  R<SP>2</SP> = OH, OTHP or OAc and R<SP>3</SP> = H, (ii) compounds of Formula V in which R<SP>1</SP> = CN, COOH, CONH 2 , CHO, CH 2 OH, CH(OH)CH 3  or CH 2 NO 2 , R<SP>2</SP> = OH or OAc and R<SP>3</SP> = H, (iii) compounds of Formula VI in which R<SP>1</SP> = COOH, COCH 3 , CONH 2 , CH 2 OH or CH(OH)CH 3 , (iv)-(vii) compounds of Formulµ VII, VIII, IX and X in which R<SP>1</SP> = CH 2 NO 2  or CN and R<SP>2</SP> = Me or Ph (viii) compounds of Formula IV in which R<SP>1</SP> = CONH 2 , Me, COOH, Bz, CH 2 NO 2 , Ph, CN, CH(CN)COOAlk, CH(COOH) 2 , CH 2 OH, COCH 3  or CH(OH)CH 3 , R<SP>2</SP> = OH, OTHP or OAc, provided that R<SP>2</SP> = OH when R<SP>1</SP> = COOH, COCH 3 , CONH 2 , CH 2 OH or CH(OH)CH 3 , and R<SP>3</SP> = H and (ix) compounds of Formula III in which R<SP>1</SP> = SH, CH 2 NO 2 , vinyl, Ph, Me, Bz, CN, SAlkyl, SPh, CH(CN)COOH, or CH(CN)CONH 2 , R<SP>2</SP> = OH or OTHP and R<SP>3 </SP>= H; and C 1 -C 6  alkyl esters and alkali metal, ammonium and basic amine salts of the said compounds. Compounds II are prepared from compounds I by 1,4-conjugate addition to the α,#-unsaturated ketone system, e.g. by means of Grignard reagents. Compounds III are prepared by treatment of compounds II with a hydride reducing agent. Compounds VI are prepared by deketalization of compounds V. Compounds VII are prepared by oxidation of compounds V. Compounds VIII are prepared by reaction of compounds VII with a methyl or phenyl Grignard reagent. Compounds IX are prepared by deketalization of compounds VIII. Compounds X are prepared by hydrogenation of compounds IX. Compounds IV are prepared by hydrogenation of compounds II or VI. Compounds V in which R<SP>1</SP> = CN or CH 2 NO 2  are prepared from corresponding compounds II by ketalization. Compounds V in which R<SP>1</SP> = COOH, CONH 2 , CHO or COCH 3  are prepared from compounds V in which R<SP>1</SP> = CN. Compounds V in which R<SP>1</SP> = CH 2 OH or CH(OH)CH 3  are prepared by reduction of compounds V in which R<SP>1</SP> = CHO or COCH 3 . Esters and salts may be prepared from compounds containing free OH or COOH groups, and vice versa. Intermediates.-PGA 2 , methyl ester; PGA 2 , 15 - tetrahydropyran - 2 - yl ether, PGA 2 , 15 - tetrahydropyran - 2 - yl ether, methyl ester, 15 - epi - PGA 2 , 15 - tetrahydropyran - 2 - yl ether; and PGA 2 , methyl ester, acetate are prepared in examples. Pharmaceutical compositions having bronchodilating activity for oral, parenteral and oral inhalation activity, comprise a compound of Formula II, III, IV, V, VI, IX or X together with a pharmaceutical carrier.
Patent GB-1478554-A (GB)
Title: Electrochemical cell assembled in discharged state
IPC: H01M6/20
Filed: 1975-09-08
Abstract: 1478554 High temperature secondary cells UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 8 Sept 1975 [30 Sept 1974] 36852/75 Heading H1B A high temperature secondary electrochemical cell, which is assembled in a discharged state, has a +ve electrode 17 comprising a metallic mesh of e.g. Fe, Co, Ni or Mo with Li 2 S and an electrolyte embedded therein, and - ve electrodes 13, 15 comprising porous Al, and an electrolyte including a Li salt. The electrodes are insulated from each other by a ceramic cloth or perforated paper 25 of e.g. boron nitride, zirconia or yttria, which may be supported by a porous layer 26 of e.g. stainless steel or Mo. The electrolyte may be LiCl-KCl, LiCl-LiF-KBr. A - ve terminal 19 is attached to housing 11. The +ve terminal 21 passes through an insulating collar 23. In a modification (Fig. 2, not shown) an electrode comprises several layers of mesh some of reactive material, e.g. Fe, Ni, Co and some of inert materials, e.g. Nb, Mo, W. In a further modification (Fig. 3, not shown) a beryllium oxide cylinder is positioned between the +ve electrode and the housing.
Patent GB-1101630-A (GB)
Title: Improvements in or relating to electrical control apparatus
IPC: F23N5/08
Filed: 1966-08-18
Abstract: 1,101,630. Photo-electric flame sensor. ELECTRONICS CORPORATION OF AMERICA. Aug.18, 1966 [Sept.2, 1965], No. 36983/66. Heading G1A. An avalanche breakdown type of detector sensing ultraviolet radiation from a flame is fed with A. C. via a circuit which is resonant at a frequency substantially greater than the A. C. frequency. When the detector is in its low impedance avalanche breakdown, so that each half cycle current flow through the detector upon avalanche is quenched before the A. C. changes polarity. As shown in Fig. 2 600V. A. C. are fed to a detector 116, comprising tungsten electrodes in a hydrogen atmosphere, through capacitor 112 and inductance 120 which together form the required resonance circuit. The inductance 120, which is an autotransformer, reflects pulses created by each half cycle avalanche via diodes 134, 136 to charge capacitor 150 which slowly discharges into capacitor 164. If pulses arrive at a sufficient rate, the controlled rectifier 160 is made conductive and current flows through relay coil 162. A capacitor may be provided on the primary side of transformer 100 to provide a circuit which is resonant at the A. C. frequency.  In another arrangement Fig. 1 (not shown) the detector is in the secondary circuit of an autotransformer whose primary circuit together with a capacitor forms a circuit which is resonant at the A. C. frequency when the detector has not broken down but resonant at a much higher frequency when the detector has broken down. Circuitry for collecting the breakdown pulses is similar to Fig. 2. In a third arrangement Fig. 3 (not shown), the required resonant circuit comprises a capacitor bridging the detector and inductor in series.
Patent GB-1108588-A (GB)
Title: Process for preparing crystalline poly(trans-2-butene oxide)
IPC: C08G65/08
Filed: 1965-08-27
Abstract: 1,108,588. Polymerisation catalysts. HERCULES Inc. 27 Aug., 1965 [17 Sept., 1964], No. 37063 /65. Heading B1E. [Also in Division C3]  A catalyst for polymerising trans-2-butene oxide is obtained by reacting together in an inert atmosphere under anhydrous conditions at a temperature of from -100C to + 150C. a trialkyl-aluiminium or a dialkyl aluminium hydride with a saturated aliphatic polyhydroxy compound selected from chloral hydrate, vicinal diols and vicinal polyols having more than 2 hydroxy groups the saturated aliphatic polyhydroxy compound being employed in an amount of from 0.2 to 3 moles of hydroxyl group per mole of aluminium in the alkylaluminium compound. The reaction may be effected in a dry inert solvent e.g. a saturated aliphatic hydrocarbon, an aromatic hydrocarbon or a chlorinated hydrocarbon. In examples the reaction products of triisobutylaluminium and ethylene glycol, triethylaluminium and ethylene glycol, triisobutyl aluminium and glycerol and triisobutylaluminium and chloral hydrate are employed as catalysts. Reference has been directed by the Comptroller to Specifications870,418; 898,306 and 1,078,751.
Patent GB-868218-A (GB)
Title: Improvements in or relating to rotary envelope machines
IPC: B31B70/00
Filed: 1958-11-19
Abstract: 868,218. Feeding sheets. WINKLER, R., and DUNNEBIER, K. Nov. 19, 1958 [Dec. 11, 1957], No. 37182/58. Class 100(1) [Also in Groups XVII and XXX] A device for conveying sheet blanks through the drying zone of a rotary envelope making machine comprises a pair of positively driven longitudinally inextensible conveyers. Transfer rollers 5 feed blanks from belts 1, 2 to rollers 6, 7 rotating at the greater speed of the block chains 8, 9 so as to increase the staggering of blanks and feed them guided by rollers 10, to the conveyer. Pairs of positively driven block chain conveyers 8, 9 are provided having frictional surfaces 15 gripping the sides of the blanks sufficiently tightly to prevent sagging between the chains where the drying device is positioned. The chains are guided in the drying area by straight guides 12, 13 and the chains 8 are urged towards the chains 9 by springs 14. Dried blanks are transferred by rollers 16 to conveyers 17-19 for further processes.
Patent GB-444355-A (GB)
Title: Improvements in or relating to box spanners
IPC: B25B13/06
Filed: 1934-12-31
Abstract: 444,355. Making spanners. SHEPHEARD, C. T. R., Golden Valley Works, Brimscombe, Gloucestershire. Dec. 31, 1934, No. 37308. Drawings to Specification. [Class 83 (ii)] [See also Group XXIII] A double hexagon box spanner is shaped by hot pressing a length of solid drawn steel tubing between two dies.