baber/WOPTO huggingface dataset:
Patent GB-184999-A (GB)
Title: An improved metallic paint or coating
IPC: H01H33/91
Filed: 1921-08-09
Abstract: 184,999. Ormiston, H. O. Aug. 9, 1921. Paints.-A paint consists of 4 oz. of powdered aluminium mixed with 8 oz. of shellac dissolved in 20 oz. of methylated spirit. Reference. has been directed by the Comptroller to Specifications 25675/96 and 9273/10.
Patent GB-784551-A (GB)
Title: Improvements in or relating to the construction of resilient seating or reclining surfaces
Inventor: VARKALA PETER BASIL
IPC: A47C7/22
Filed: 1955-07-21
Abstract: 784,551. Spring upholstery. PROGRESS MERCANTILE CO., Ltd., and VARKALA, P. B. April 5, 1956 [July 21, 1955], No. 21154/54. Class 52(4) An elastic webbing strip 2 for supporting upholstery &c. is attached to a frame member by means of a reinforcing clip 4 within which the end 2a of the strip is clamped, the clip being inserted in a groove 3 of the member 1, the slot 6 of a plate 5 attached to a frame member (Fig. 2) or the groove 8 of a tubular bar 7. (Fig. 3).
Patent GB-149267-A (GB)
IPC: C10B25/12
Filed: 1920-07-13
Abstract: 149,267. Ofenbau-Ges. July 15, 1919, [Convention date]. Coke-oven and like doors.- Relates to door-closing mechanism for inclined retorts, coke ovens and the like having a door pivoted at its upper end _and provided with hook-shaped locking bars operated by weighted pivoted levers mounted on the door, and consists in arranging the weight separate from the levers so that it may be brought into co-operation with them only during the closing of the door. The weight may travel in front of a number of doors and be brought into cooperation with the levers of the door closing mechanisms in turn. The hook-shaped locking- bars 10, Figs. 1 and 2, are secured to the ends of a cranked bar 8 pivoted or. the front of the door 2 and adapted to be rotated by levers 14, which are forced downwards by means of a suspended weight 16, so as to rotate the locking bars and bring their hooked ends forward against pins 11 on the door-frame. To open the door, a hook 18 on the bottom of the weight is brought into engagement with a cross-bar 19 between the levers, and the weight raised, as indicated in dotted lines in Fig. 1. In place of a hook on the weight, the. ends of the levers may be so shaped that lateral roller pins 27, Fig. 8,'on the weight engage automatically with hooked arms 22 on the levers as the weight is lowered and raised. A plate 25 guides the weight into the hooks 22, and a plate 26 so guides it away from the levers that it may be removed after the door has been closed.
Patent GB-455450-A (GB)
Title: Improvements in electric arc heating torches in which hydrogen or the like is directed through the arc on to the work to be heated
IPC: B23K28/02
Filed: 1935-07-26
Abstract: 455,450. Electric arc torches. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London.-(General Electric Co. ; Schenectady, New York, U.S.A.) July 26, 1935, No. 21305. [Class 39 (iii)] The electrodes 3 of a torch with a hydrogen or other gas supply are carried by a spindle or trunnions 7 mounted in arms 10 pivoted to a rigid frame 13 so that they can be moved as a pair to and from the work and to-and-fro across the work. A plurality of electrode pairs may be provided in a common hood 1. The arms 10 are raised and lowered by screw-and-nut gearing 18, 17. The hood and the electrodes are rotated about the axis of the trunnions by worm gear 31, the worm wheel being mounted on one of the trunnions. One of the pivoted arms is separately adjustable in a vertical direction to enable levelling to be effected. The mounting of the electrodes in the hood and the feeding mechanism is constructed as described in Specifications 455,451, and 455,812. Specification 400,675 also is referred to.
Patent GB-151151-A (GB)
Title: Improvements in and relating to winding frames employed in the manufacture of yarn
IPC: B65H63/06
Filed: 1919-08-30
Abstract: 151,151. Naylor, T., and Greenwood, E. Aug. 30, 1919. Clearing-apparatus.-Slubs are removed from the yarn in winding-frames by a pair of converging combs A secured to plates D, which are adjustably mounted on standards E secured on a base plate carried by the lifter rail. A thread guide K is so arranged relatively to the combs as to prevent lateral vibration in the yarn while the slubs are being removed.
Patent GB-1369960-A (GB)
Title: Toolholder
IPC: B23B31/20
Filed: 1973-05-04
Abstract: 1369960 Chucks WARNER & SWASEY CO 4 May 1973 [5 June 1972] 21426/73 Heading B3B A tool holder for holding tools having a shank 26 with a presetting nut 24 for engaging a reference surface 38 to determine the extent to which the shank projects outwardly from a spindle 12, comprises a collet connected to the spindle and acting when in its closed condition to press inwardly against a chamber 20 on an axially outer face of the nut 24 to urge the nut against the reference surface 38, said collet including gripper surfaces 30 which define a cone 64 when in the closed condition, and a spring biased actuating sleeve 34 for operating the collet between the open and closed condition. The tool holder may include an ejector which is engaged by the spring 52 to eject the tool as the collet is opened. The ejector comprises a sleeve having an inturned flange which engages a groove in the nut 24 (Figs. 3 and 4, not shown), or a sleeve having an internal flange received in a recess in the end of the spindle immediately behind the nut 24 and including extensions that fill up the space between the fingers of the collet to prevent ingress of dirt (Fig. 5, not shown), or a sleeve having an inturned flange that fits in an end chamfer on the spindle (Fig. 7, not shown). In a further embodiment of the ejector which eliminates the need to machine the spindle (Fig. 6, not shown) the inturned flange of the ejector sleeve provides the reference surface instead of the end of the spindle. A ball locking arrangement is provided to hold the sleeve 34 in the unlocked position in conjunction with the extension of the ejector so that when a new tool is inserted in the spindle the ejector is pushed back and the sleeve 34 is un-locked to automatically actuate the collet.
Patent GB-164375-A (GB)
Title: Improvements in or relating to the manufacture of cellulose derivatives
IPC: C08B11/16
Filed: 1919-09-03
Abstract: Aralkyl ethers of cellulose, such as benzyl cellulose, are prepared by treating cellulose or its near conversion products not soluble in alkali, such as mercerized cellulose, with suitable aralkylating-agents in the presence of alkali, under such conditions that (1) the quantity of water present or added, disregarding water formed during the process, is at no stage of the etherification greater than about four times the weight of cellulose taken and preferably not in greater amount than about one-half or one and a half times this, or it may even be as low as the natural humidity content of the cellulose, and (2) the total quantity of alkali is at least equal to and preferably exceeds by 3-19 or more times the weight of water present or added.  Aralkyl groups that may be introduced are:-benzyl groups, methyl-benzyl groups, phenyl-ethyl groups, methoxy-benzyl groups, and groups derived from xylene or its homologues or substituted products. The requisite quantities of water and alkali are added prior to the etherification, or partly or entirely during the process, either continuously or by stages; and the benzylating or other agent may be introduced all at once or continuously or in successive portions.  The process is preferably carried out at temperatures varying from room temperature and 100 DEG C.-higher temperatures may be employed, but are not advantageous; and contact substances such as copper powder, or copper salts, or hydroxides may be added to accelerate the reaction; and it is advantageous to add liquid diluents or solvents such as benzol, not liable to undergo etherification, since such additions facilitate mixing and render the reaction more uniform.  In examples, one molecular equivalent of cellulose, C6H10C5, is either impregnated with a solution of four molecules of caustic soda in an equal weight of water, or is impregnated with the necessary amount of water and the alkali added in the form of powder, and thereafter 2-3 molecules of benzyl chloride are added, and the temperature raised to between 50-150 DEG  C.; subsequently 6 molecules of caustic soda are added, and then 3-5 molecules of benzyl chloride, and, if desired, a further 6 molecules of caustic soda and 3-4 molecules of benzyl chloride; the products obtained are soluble in chloroform and in benzol.  "Mixed" ethers are obtained by first treating with one aralkylating agent such as benzyl chloride and then further etherifying by means of a different aralklating agent such as chlorbenzyl chloride.  The ethers obtained according to the above process may be employed in the manufacture of films, artificial filaments, celluloid-like masses, electric insulating-materials, and coating materials.  Specifications 12854/12 and 6035/13 are referred to.
Patent GB-1089208-A (GB)
Title: Pneumatic actuators of the piston type
IPC: F02D29/00
Filed: 1966-05-16
Abstract: 1,089,208. Pneumatic single-stroke apparatus. V. MAJONE. May 16, 1966 [May 17, 1965], No.21690/66. Heading F1P. Stepwise linear displacement of a compressed air actuated piston 2, Fig. 1 is effected by selective abutment of a succession of axially spaced discs 11 projecting radially from the piston rod 3 against one or other of a pair of oppositely facing abutment blocks 15, 16 carried by a frame 14 secured round the cylinder wall and connected together for simultaneously reciprocation transversely to the rod 3. Block 16 is biased by tension springs 21, 22 to its retracted position whereas block 15 is biased by compression springs 27, 27' to its extended position. On application of air pressure through a line 45 to beneath a piston 25 block 16 is extended radially inwardly and this movement is transmitted by rods 33, 34 Fig. 2, to block 15 which is thereby retracted. To retract block 15 whilst allowing block 16 to remain retracted air pressure is admitted through a line 46 to lift a piston 32 which is tied by a cross-head 70 and rods 27, 28 to said block 15. Air supply is controlled by solenoid valves 51, 52, 53 Fig. 4, in the line 44 leading to the working cylinder space 1' and in lines 45, 46 respectively and said valves are energized by remote cam actuated switches 55 to 57. The various step movements of the piston are transmitted to a lever 37 for controlling means such as the injection pump of a diesel engine through a flexible tape 7 secured at one end to the head 4 of rod 3 and at the other end to a spring drum 8 carrying a cam 38 and a follower 36 secured to the lever 37. Rapid return of piston 2 from any position is effected by the drum spring 9 acting through the tape 7 when both blocks 15, 16 are in their retracted position.
Patent GB-156297-A (GB)
Title: Improvements relating to means for reproducing sounds
IPC: G11B11/03
Filed: 1919-09-03
Abstract: 156,297. Holden, W. Sept. 3, 1919. Sound-magnifying appliances. - A pneumatic relay device for sound reproduction comprises a pair of superposed grids pivoted at opposite edges and each having a transverse rod, the free ends of said rods being flexibly connected with the ends of a link so that the grids move simultaneously and in opposite direction. As shown in Fig. 2, the valve comprises two comb-like members d, e, hinged to the casing by means of springs h along opposite edges, and arranged with the teeth of one member covering the gaps in the other. Rods m rigidly secured to each member near its hinge are connected at their ends by a link o, the arrangement being such that as one member d moves outwards the other e moves inwards. Springs p, q tend to keep the members d, e in closed position. The stylus bar may be attached to the centre of either of the comb-like, members d, e, or may be connected to both by a flexible member s, Fig. 4. Alternatively the stylus may be attached to an outward extension of the lower rod m.
Patent GB-191772-A (GB)
Title: Improvements in or relating to electric transmitters for use in automatic telegraphy
IPC: H04L15/18
Filed: 1921-08-16
Abstract: 191,772. Creed & Co., Ltd., and Creed, F. G. Aug. 16, 1921. Perforated strip transmitters.-Automatic telegraph transmitters, contacts and associated parts are mounted on a cylindrical plate o which can be pushed into a supporting-standard w, the pins 1, 2 connected' to the fixed contacts meanwhile entering pairs of fixed springs 9, Fig. 2, while the driving spindle h engages the shaft of the motor (not shown) by means of a spring coupling, scarf, joint or the like; or alternatively the spindle may be connected to the motor by flexible shafting. The fixed contacts e<1>, f<1>, Fig. 1, are clamped by set screws 1<a>, 2<a> in the ends of the pins 1, 2, the whole being supported in an insulating plate i. The movable contacts e, f are arranged outside and coaxially with the fixed contacts, and are carried by bell-cranks a, b, adapted to be operated by springs 7 and tappets 6 on the rocker-beam g. The latter is pivoted on a pin 12 and rocked by an eccentric pin 14, which is carried by the end of the driving spindle h, and engages a block g<2> sliding in an open ended slot g<1> in the rocker beam. The needles or peckers c, d are held upright by springs 32 which press them against grooves in the tape feed wheel m, and the jockey pnlley n for guiding the tape is grooved to admit the ends of the peckers. The contacts, peckers and feed wheel are arranged inside a cylinder r which has a glass front s and an opening 34 to admit the jockey n. The circuit arrangements are such that one pair of contacts is connected through a relay to the middle of a split battery, while the other two contacts are respectively connected to the opposite poles of the battery; or the relay may be dispensed with. The driving spindle h is disconnectibly coupled to a shaft containing a flexible joint and driven by a motor through variable-speed friction gear, which comprises a revolving disc at right-angles to and in frictional engagement with a wheel which can be moved radially over the disc by turning a screwthreaded spindle by hand. Alternatively, the operating speed may be controlled by varying the speed of the motor. According to the Provisional Specification, the springs 9 are replaced by three spring blades, of which two bear on pins 2 as in Fig. 2, while the third bears on a pin connected to the movable contacts.
Patent GB-1204394-A (GB)
Title: Process for converting a penicillin sulfoxide ester to a cephalosporin antibiotic
Inventor: COOPER ROBIN
IPC: C07D499/00
Filed: 1968-05-08
Abstract: 1,204,394. Cephalosporins. ELI LILLY & CO. 8 May, 1968 [8 May, 1967], No. 21833/68. Heading C2A. A penicillin sulphoxide ester is converted to a desacetoxy-cephalosporin antibiotic by heating the penicillin sulphoxide ester dissolved in a tertiary sulphonamide under acid conditions at 80 to 175 C., the tertiary sulphonamide having the formula wherein (a) each of R 1 , R 2  and R 3  is C 1  to C 10  alkyl, phenyl, tolyl, or xylyl, at least one of R 1 , R 2  and R 3  is C 1  to C 10  alkyl, and R 1 , R 2  and R 3  together contain not more than 18 carbon atoms; (b) R 1  is a C 1  to C 10  alkyl, phenyl, tolyl or xylyl, and R 2  and R 3  are taken together with the N atom to which they are bonded to complete a monocyclic ring radical bonded to the S atom, which radical contains from 4 to 6 saturated carbon atoms, and which radical can contain a ring member oxygen atom gamma to the ring N, such that R 1 , R 2  and R 3  together contain up to 12 carbon atoms; (c) R 1  and R 2  are taken together with the sulphonamide grouping to which they are bonded to form a sulphur oxide and mononitrogen monocyclic ring having 3 to 5 saturated ring carbon atoms therein, and R 3  is alkyl, phenyl, tolyl or xylyl such that R 1 , R 2  and R 3  together contain up to about 12 carbon atoms, and/or (d) R 1  is -NR 4 R 5  and each R 2 , R 3 , R 4  and R 5  is alkyl such that the sulphondiamide formed thereby contains up to about 12 carbon atoms. Typical tertiary sulphonamides are N,N-dimethylmethane sulphonamide, N-(propylsulphonyl)-pyrrolidine, N-(phenylsulphonyl) -morpholine, 2 - methyl - isothiazolidine - 1,1 - dioxide and tetramethyl sulphondiamide. The penicillin sulphoxide ester is dissolved in the tertiary sulphonamide and the acid substance added thereto. Preferred acid substances are acetic anhydride and aluminium chloride. Others are disclosed in U.S.A. Specification 3,275,626. Any penicillin sulphoxide ester may be used to form the corresponding desacetoxycephalosporins, e.g. 6-(phenylacetamido)-2,2- dimethylpenam-3-carboxylic acid yields 7-(phenylacetamido) - 3 - methyl - 3 - cephem - 4 - carboxylic acid; 6-(thiophene-2-acetamido)- 2,2 - dimethylpenam - 3 - carboxylic acid yields 7 - (thiophene - 2 - acetamido) - 3 - methyl - 3 - cephem-4-carboxylic acid. 2,2,2 - Trichloroethyl 6-(phenylacetamido)- penicillanate sulphoxide is prepared by reacting potassium benzyl penicillinate with 2,2,2-trichloroethanol in a solvent in the presence of a base and condensing agent and treating the ester so formed with m-chloroperbenzoic acid in chloroform.
Patent GB-1055493-A (GB)
Title: Thermostatic electric switch
IPC: H01H37/52
Filed: 1965-05-27
Abstract: 1,055,493. Thermal switches; switches held set and freed mechanically. STEVENS MANUFACTURING CO. Inc. May 27, 1964 [June 5, 1963], No. 21854/64. Heading H2B. A switch for use in a hair-dryer includes two contacts 14, 15 which control the electric motor circuit and two contacts 16, 17 which control the electric heater circuit. Both pairs of contacts are normally open and are controlled by a rotatable knob 27 on a rod 28, screwthreaded at 28a. As the knob 27 is turned from the extreme off position a collar 31a moves away from the resilient switch arm 19 which allows contact 15 to engage contact 14, to energize the electric motor M. However, contacts 16, 17 still remain open and only close to energize the electric heater H after knob 27 has been rotated further to retract abutment member 38 sufficiently away from resilient switch blade 35. Further rotation of knob 27 then adjusts the temperature at which the contacts 16, 17 subsequently open under the control of a bimetal strip 39 having an insulating member 42 at one end bearing on resilient switch blade 34. To reduce the sensitivity of the strip 39 and to prevent rapid cycling of the contacts 16, 17 a sleeve 43 of loosely wound thermal insulation material or of heat insulation tape surrounds the strip.
Patent GB-905855-A (GB)
Title: Synchronous motor control
IPC: H02H6/00
Filed: 1960-06-22
Abstract: 905,855. Control of A.C. motors. WESTING- HOUSE ELECTRIC CORPORATION. June 22, 1960 [June 25, 1959], No. 21857/60. Class 38 (3). [Also in Group XL (c)] A synchronous motor control system of the type including a thermal integrating circuit and described in Specification 905,267 has a modified pulse generating circuit (see Group XL (c)) and additionally includes a speedsensing circuit which provides a constant energy input to the integrating circuit when the slip of the motor is greater than a predetermined level. As shown, the flow of current induced in the field winding 4 of a synchronous motor 2 causes a voltage representative of the slip to appear at an input circuit 12. A speed sensing circuit 14 measures the frequency of the induced field current while a circuit 16 forms trigger pulses for each half-cycle of induced voltage and a circuit 18 forms pulses of constant width and magnitude for each trigger pulse. The arrangement is such that the speed sensing circuit provides a steady state signal to a switching amplifier 20 until the motor slip reaches the predetermined value; thereafter circuit 14 becomes inoperative and the amplifier 20 responds to pulses from the circuit 18. The amplifier 20 feeds a thermistor integrator 22; when the integral of the energy input to 22 reaches a predetermined value this is sensed by circuit 24 which provides an output signal to de-energize a contactor coil 26 thereby disconnecting the motor 2 from the power lines 6. The thermistor integrator has thermal characteristics representative of the damper winding of the motor 2 and the circuit thus functions as a damper winding protection circuit. The rate of energy input to the integrator when the slip is greater than the predetermined slip is constant; for lesser slip values the rate of energy input is proportional to the actual slip, and this arrangement closely simulates the actual current induced in the damper winding (Fig. 1, not shown). The speed sensing circuit 14 incorporates NOR elements (Fig. 3, not shown).
Patent GB-1100438-A (GB)
Title: Production of 1,2-dichloroethane
Inventor: HARPRING JEROME WESTON
IPC: B01J21/00
Filed: 1965-05-24
Abstract: 1,2-Dichloroethane is prepared by passing an essentially dry gaseous mixture of ethylene, HCl and an oxygen-containing gas in a molar ratio 1.02-1.20 mols. ethylene and 0.55-1.0 mol. oxygen for each 2 mols. HCl, through a fluidized bed of a supported copper halide catalyst containing 3-12% by weight copper, maintaining the gaseous mixture above the dew points of the reactants and products under a pressure of 10-50 p.s.i.g. and at a temperature of 200-250 DEG  C., quenching the reaction gas in a first stage to 70-100 DEG  C. to condense some of the water of reaction, most of the small amount of unreacted HCl and the bulk of the chloral by-product, and cooling the gases from said quench in a second stage to 0-40 DEG  C. to recover 1,2-dichloroethane, both cooling steps being effected at 10-50 p.s.i.g. The preferred catalyst is cupric chloride supported on alumina.  The vapours leaving the second cooling stage may be washed with an organic solvent which will absorb any remaining 1,2-dichloroethane vapour.
Patent GB-426691-A (GB)
Title: Mechanical toy
IPC: F41B7/00
Filed: 1934-07-27
Abstract: 426,691. Toy guns and projectiles. ARNOLD, C., 47, Deutschherrnstrasse, Nuremberg, Germany. July 27, 1934, No. 22007. [Class 132 (iii)] [See also Group XXI] A mechanical toy has a toy aircraft projected from a tube by spring means, a charge in the end of the projectile being ignited by a percussion cap fired simultaneously with the projection of the aircraft. As shown, a projectile s in the form of an aircraft has inserted in an aperture u a rocket charge v of powdered cerium and potassium chlorate. The projectile is retained in the slotted barrel d by a nose k on a pivoted lever l engaging a recess t in the projectile. The barrel d is provided at its end with an anvil g having an aperture f. A striker bolt plate o is pivoted on an axle n journalled in stays h and is provided with a pin w and a metal strip or cup y for a percussion cap and is retained by a detent q against the action of a blade spring p. The barrel d is carried by supports b mounted on a base plate a. On depressing the detent q the plate o is freed and is rotated upwardly by the spring p for the percussion cap to be fired against the anvil g, sparks passing through the aperture f to ignite the charge v. Simultaneously the pin w rotates the lever l to withdraw the nose, k from the recess t and allow the spring c to project the toy aircraft s.