baber/WOPTO huggingface dataset:
Patent GB-614749-A (GB)
Title: Improvements in or relating to devices for generating impulse voltages
IPC: H03K3/55
Filed: 1946-07-24
Abstract: 614,749. Testing impulse voltage. PHILIPS LAMPS, Ltd. July 24, 1946, No. 22006. Convention date, Oct. 20, 1942. [Class 37] In an impulse generator comprising a condenser charged from a D.C. supply and discharged through the test specimen, the specimen is connected in series with a gas discharge tube having liquid main electrodes and an ignition electrode serving as a control electrode. As shown, the impulse voltage condenser 1 is charged from the source 4 through the switch 3 and resistor 2. The discharge path consists of the gas-discharge device 5, resistor 8 and specimen 9, and the device 5 has mercury pool electrodes 6, 7. Series-connected resistor 15 and condenser 16 are in parallel with condenser 1, and the spark-gap 17 is connected across condenser 16 in series with the resistor 19 and potentiometer 20. The tapping of potentiometer 20 is joined by lead 22 to the ignition electrode 21 constituted by a quartz tube partially immersed in mercury pool 7. The horizontal and vertical plates of the oscilloscope 12 are connected to the high potential ends of resistor 19 and the specimen respectively. Upon closure of switch 3, the condensers 1 and 16 charge, and when the breakdown voltage of the gap 17 is reached by condenser 16, the gap conducts, an impulse voltage is applied to ignition electrode 21 through tapping 20, the device 5 becomes conducting and condenser 1 discharges through specimen 9. The time lag between the commencement of the time-base voltage as the oscilloscope horizontal plate and the initiation of the impulse through 9 is controlled by the potentiometer tapping 20. Displacement of the tapping to left or right respectively reduces or increases the lag.
Patent GB-1036942-A (GB)
Title: Improvements relating to adjustable storage rack structures
Inventor: DEAKIN REX
IPC: A47B57/40
Filed: 1964-05-28
Abstract: 1,036,942. Shelving. HANDY ANGLE Ltd. May 28, 1965 [May 28, 1964], No. 22026/64. Heading A4B. Horizontal rails 38 of a pallet rack structure are connected to uprights 20 by inserting tongues 50, which are pressed out from an attachment flange 46 of a connector 44 secured to the rail 38, into slots 34 formed in attachment plate 22 of the upright 20, and pressing the rail downwardly. The slots 34 are formed by pressing strips 30 rearwardly so that they remain connected to the attachment plate 22 at their upper and lower ends while leaving edges 36 and slots 34 inclined downwardly away from abutment plates 24. The tongues 50 are formed so that their roots 52 and free edges 54 are parallel to the edges 36 so that the rails 38 are wedged in position.
Patent GB-672968-A (GB)
Inventor: WERNER NAEGELI
IPC: D01H5/26
Filed: 1948-08-20
Abstract: 672,968. Drawing apparatus for rovings. AKT.-GES. J. J. RIETER & CIE. Aug. 20, 1948 [July 10, 1948], No. 22044/48. Class 120(ii) In drawing rovings of different staple length fibres between rollers at two gripping-points, a restraining action is exerted on the fibres on a curved path, and by a relative adjustment of travelling aprons serving as guide means for the fibres passing over the said path, the length of the path, and hence the restraining action on the fibres, is varied in accordance with the staple length of the fibres being drawn, without altering the distance between the two gripping-points. As shown, an upper belt 7 passes around top roller 5 and is guided by a member 12 fixed at the ends to a weighting saddle 11 and having upstanding extensions 13. A lower belt 8 passes around bottom roller 2, a tensioning roller 19, and a pulley 18 carried by a guide cage formed by brackets 14 hooking around roller 2 at 15 and connected by a bridge piece 16. Brackets 14 rest on a vertically adjustable support 17. With the mechanism adjusted as shown, for dealing with long stapled fibres, the restraining action of the belts is at a maximum at the gripping-point where rollers 2, 5 contact, and decreases to zero where the belts part. To adjust the mechanism for dealing with short staple fibres, support 17 is raised, brackets 14 pivot about roller 2, and pulley 18 enters a curved portion at the underside of member 12. The curved path over which the belts grip the fibres in the region of member'12 is thus increased, and the effective gripping-point for the fibres is shifted forward of rollers 2. 5. The degree of displacement of support 17 can be varied according to the staple length of the fibres. Support 17 can be arranged to adjust simultaneously all the drawing heads of a machine.
Patent GB-271308-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/32
Filed: 1926-09-08
Abstract: 271,308. Fitzpatrick, H. D., (Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Sept. 8, 1926. Cutting slices in succession.- In a slicing. machine, the slice deflector is formed with ribs, hollows, channels, slots or the equivalent on its deflecting face, so as to diminish the retardation offered to the slices by the deflecting face. As shown in Figs. 1, 4 and 5, the invention is applied to a reciprocating table machine. The slice deflector 42 is secured to an upright post 43 swivelled in a bracket 44 on the chain-box 45 of the machine. The inner edge of the deflector bears against the bevelled face 47 of the knife just behind the shorter bevel 48 produced by the grinding stones. The deflector is yielding held in position by a spring 49 screwed to the bracket 44 and bearing against a squared face of the post 43. The deflector may be swung away into the inoperative position in which it is retained by the spring 49 engaging the side 51 of the post 43 on which the deflector is adjustably secured by screws 52 and slots 53. The spring 49 is received in a squared depression in the post which is thereby prevented from moving axially. To remove the post, the spring 49 is disengaged from the depression and the post is free to be lifted out of its bearing. The deflector is ribbed or corrugated to provide contact lines for engaging the slices, the contact lines being directed generally outwardly and backward.ly from the cutting- edge. The lower lines are inclined slightly downwards, the inclination decreasing in the lines further up so that at the middle of the deflector the lines are substantially horizontal. The backward inclination also decreases from the bottom of the deflector to the top so that the deflecting surface overhangs at the top as shown in Figs. 4 and 5, Fig. 4 being a section at a higher level than Fig. 5. From a point substantially on a horizontal line with the axis of the knife, the read ends of the deflector lines are arranged substantially on a vertical line, as indicated in Fig. 1. This formation of the deflector ensures that the slices are directed broadside downwards on to a slice receiver which may be of any type. That shown in Fig. 1 comprises an oscillating member synchronized with the reciprocating table and having a receiving plate 39 which descends intermittently. A slice or skin support 54 is arranged at the base of the deflector and is supported on a bracket 55 adjustably secured to the machine base. A portion 57 of the support 54 projects around the knife edge, and a projection 58 on the deflector is positioned slightly below and spaced from the projection 57 to form therewith a substantially continuous support for the lower edge of the slice. The deflector and support 54 are adjusted to compensate for recession of the knife edge due to grinding. In a modification, the deflector is applied to a swing- ing-knife machine, the post of the deflector being carried by the swinging arm.
Patent GB-789938-A (GB)
Title: Improvements in or relating to magnetically-operated friction brakes or clutches
IPC: F16D27/00
Filed: 1956-07-18
Abstract: 789,938. Electromagnetic clutches. BAERMANN, M. July 18, 1956 [July 18, 1955], No. 22292/56. Class 80 (2). [Also in Group XXXIV] A magnetically operated friction clutch comprises two relatively rotatable coaxial members 2 and 6, a clutch disc 8 arranged between the members, and axially movable relative thereto, permanent magnet ring-shaped magnetic poles 10 and 12 provided on the disc, and an electromagnet 13 associated with one of the members 2 or 6, and disposed opposite the ring-shaped magnetic poles 10 and 12, the arrangement being such that by changing the polarity of the electromagnet, the disc 8 can be moved axially either in the direction of member 2 or member 6 for engaging or disengaging either of these members. The magnetic attraction between the disc 8 and armature 3 may be varied by the use of a layer 19 of non-magnetic material and the clutch may have a housing filled with magnetic fluid or with iron powder in suspension.
Patent GB-583656-A (GB)
Title: Tractor driver's protection sheet
IPC: A41D13/00
Filed: 1944-11-14
Abstract: 583,656. Capes or overalls. RAVEN, C. W. Nov. 14, 1944, Nos. 22431/44 and 3511/45. [Class 141] A cape for a tractor driver consists of a sheet adapted to be secured to the front and sides of the tractor and to cover the driver except for his head. As shown, the cape or protection sheet 15 is provided with a neck opening fitted with a sliding clasp fastener 19 and having a collar 17. The front edge of the sheet is secured by cords 27 to the tank filling cap 28 and by a strap 36 adapted to pass round the petrol tank 13. On each side of the front edge an extension such as 25 is secured to a mudguard bracket 35 by a cord 34. The side edges of the sheet have spring clips 37 which engage the edges of the mudguards 14 and the back of the sheet hangs loose. A semi-circular member 38, having a strut 39 which is clamped to the steering column, prevents the cape fouling the steering wheel. When the cape is not in use, it can be rolled up and attached to the member 38 by cords 23.
Patent GB-817197-A (GB)
Title: Apparatus for charging centrifugal driers of the suspended type
Inventor: LEPOUTRE RAYMOND MARIE MAURICE
IPC: B04B11/04
Filed: 1957-07-16
Abstract: 817,197. Centrifugal driers. SOC. DES RAFFINERIES ET SUCRERIES SAY. July 16, 1957, No. 22517/57. Class 34(2) Material is fed to a centrifugal drier of the suspended basket type by tapping it under the control of a timing mechanism from a constant circulatory feed system. A motor-driven pump 3 circulates material in a ring main comprising a conduit 6 which has an opening 6a, leading to the basket 1, and a butterfly valve 10. The latter is operatively connected to a slide 7 which controls the opening 6a such that when the opening is clear the conduit 6 downstream thereof is blocked, and viceversa. The slide and valve are operated according to a predetermined cycle through a jack device 8, a control 9, and a timing mechanism 11. If the mechanism fails a device 12 causes the slide 7 to close.
Patent GB-427857-A (GB)
Title: A new or improved system of construction for skeleton structures, particularly vehicle body frames and door frames
IPC: B62D29/02
Filed: 1934-08-02
Abstract: 427,857. Vehicle bodies and doors. NEWSUM, SONS & CO., Ltd., H., Clay Lane, and ALESBURY, D. L., Spencer House, Spencer Avenue, both in Coventry. Aug. 2, 1934, No. 22522. [Classes 103 (ii) and 108 (i)] The main frames of vehicle bodies and doors and like skeleton structures are formed wholly, or in part, of straight timber which is permanently bent to the required form with the grain running longitudinally and in some cases corresponding elements at opposite sides of the frame are made in one piece. As shown the pillars a, b, on each side are each formed in one piece with the roof bends a<1>, b<1> and are jointed to the bottom frame members h, i. The longitudinal members c are jointed to the member d and together with member c<1> are carried upwardly and along the roof to the canopy member k being jointed to the roof bends a<1>, b<1>. The waist and back rails e .. e<2> are jointed and arranged as shown. A boot lid frame is formed in one piece and hinged to tne rall a. The door frame r is bent in one piece and fits between the pillars a, b which are connected at the foot by small bends q closely adjacent the door frames r. The cant rail f, screen rail and dash rim m are formed and mounted as shown.
Patent GB-1510522-A (GB)
Title: Endoosseous dental implants
IPC: A61C8/00
Filed: 1975-05-23
Abstract: 1510522 Endosseous dental implantations U PASQUALINI and G RUSSO 23 May 1975 [30 May 1974] 22572/75 Heading A5R An endosseous dental implant comprises a plate 1 adapted to be inserted in a jaw bone and provided with a post 3 'having a threaded end 4, stabilizing bars 7 in use passing through and being screw threaded into apertures 6 in the plate. The stabilizing bars are located after insertion of the plate by a positioning element 10 provided with a bridge 11 pivoted to an arm 12 which has cavities to locate on wedges 13 on the upper edge of the plate, the post passing through a bore 14a and being fixed by a threaded plug 14. The bars are then located through bored guide cylinders 15 slidabie axially with respect to the bridge.
Patent GB-465589-A (GB)
Title: Improved process for the emulsification of tars
IPC: C08L95/00
Filed: 1935-08-10
Abstract: Stable aqueous emulsions of road tars, pitch, bitumen and like materials are obtained by first preparing an inverted emulsion of the "water-in-oil" type from the whole of the tar &c., and a quantity of water not less than 5 per cent by weight of the tar &c. used and an emulsifying agent, and this emulsion is then added to and dispersed in a concentrated aqueous solution of an emulsifying agent, which contains not less than one-eighth part by weight of the emulsifying agent, whereby the first emulsion is reverted into an emulsion of the "oil-in-water" type.  Suitable emulsifying agents are water-soluble and include alkalies, soaps, alkali-soluble proteins, alkali salts of weak acids, e.g. sodium acetate, formate, borate, stearate or tri-basic phosphates, sodium alginate, potassium chromate or bichromate, resin soaps, triethanolamine oleate or stearate, turkey red oil, glue, size or starch or mixtures thereof.  The emulsions are prepared in tanks fitted with suitable stirring gear, and preferably heating means such as steam coils, and arranged so that the contents of the first tank can be discharged into the second.  According to examples: (1) the first emulsion is prepared from 1500 lbs. tar, 150 lbs. water at 85 DEG  C. and 40 lbs. of 25 per cent ammonium rosin soap.  This emulsion is then reverted by addition to a solution prepared from 40 lbs. of 25 per cent ammonium rosin soap, 20 lbs. soluble casein, 60 lbs. water at 85 DEG  C. and 1,9 lbs. ammonia (s.g. ,880).  When reversion is complete, 190 lbs. of water are added to obtain a product containing 75 per cent by weight of tar. When further dilution is required, a potassium bichromate solution is added to the second emulsifying agent; (2) the first emulsion is prepared by adding in this order, 40 lbs. of 25 per cent sodium rosin soap (having a pH value of 9), 140 lbs. water at 85 DEG  C. and 1,25 lbs. tri-sodium phosphate dissolved in 10 lbs. water followed by 1500 lbs. of continuous vertical retort road tar. This emulsion was then added to a mixture of 40 lbs. of 25 per cent. sodium rosin soap, 20 lbs. soluble casein, 130 lbs. water at 85 DEG  C., \ba1/8\beth gallon of 5N caustic soda solution and 1 lb. tri-sodium phosphate dissolved in 10 lbs. water.  The final emulsion was diluted with 415 lbs. water to obtain a product containing 65 per cent of tar; (3) the first emulsion is prepared by mixing 20 lbs. sodium alginate (10 per cent), 170 lbs. water at 85 DEG  C. and 1500 lbs. of tar, and was reverted by addition to a mixture of 25 lbs. sodium alginate (10 per cent), 25 lbs. casein, 100 lbs. water and 1,9 lbs. ammonia (s.g. ,880).  If the tar is very viscous, extra water may be added during the reversion. The emulsion may be further diluted if desired; (4) a casein/sodium rosin soap mixture is used for the preparation of the \water-in-oil" emulsion and also for its reversion into an "oil-in-water" emulsion.
Patent GB-597643-A (GB)
Title: An improved process for the polymerization of olefinic hydrocarbons
IPC: C08F10/00
Filed: 1944-11-15
Abstract: A purification of wet methyl halide diluent, separated from the reaction product in the low temperature polymerization of olefinic hydrocarbons in which a metal halide is employed as the catalyst and the reactants and catalyst are contacted in the presence of a large quantity of the methyl halide diluent and in which the diluent is separated by treatment of the product with water, whereby water is incorporated in the diluent, comprises scrubbing the separated wet diluent with a saturated aqueous solution of an inert inorganic salt such as a chloride of lithium, sodium, potassium or calcium at a temperature below that at which the diluent forms a hydrate with water and then contacting the treated diluent with a solid dehydrating agent such as silica or alumina gel prior to recycling the diluent to the polymerization zone. Suitable apparatus is shown for use in purifying methyl chloride recovered from the product separation zone of a plant for the production of polyisobutylene. The diluent is passed through a scrubbing tower counter-current to a circulating stream of cold concentrated brine and thence through a dehydrating zone containing a solid absorbent and thereafter fractionated and recycled to the polymerization zone; the used brine may be passed through a concentrator and then cooled and recirculated back to the scrubber.
Patent GB-729107-A (GB)
Title: Improvements in and relating to amplifier limit circuits
IPC: G05B11/01
Filed: 1953-08-17
Abstract: 729,107. Automatic speed/temperature control systems. GENERAL ELECTRIC CO. Aug. 17, 1953 [Aug. 18, 1952], No. 22615/53. Class 38 (4). [Also in Groups XXXIX and XL (c)] A magnetic amplifier having a limited maximum or minimum output (see Group XXXIX) is utilised in automatic speed and temperature control of an internal-combustion engine in which temperature has a predominating influence. As shown in Fig. 5, a magnetic amplifier 23 drives a D.C. motor 22 controlling a fuel pump 21 when the speed of an internal-combustion engine 20 varies, an engine governor 2 displacing the slider 26a of a potentiometer 26 to provide the necessary error signal to the amplifier control winding 24. In the output limiting circuit which comprises a rectifier 30, resistor 31 and an auxiliary control winding 25, a bias voltage 32 is opposed by a variable voltage at a potentiometer 33, the value of the opposing voltage being determined by a thermostat 34 which controls the position of slider 33a. If the engine temperature rises above a predetermined value the bias 32 is neutralized by the opposing temperature-controlled voltage and current flow through the control and auxiliary windings 24, 25 in a direction such as to cause motor 22 to reduce engine speed is consequentially established. Reduction in speed will take place even if the engine is running underspeed at the time, the speed-error current in the control winding being opposed by the temperature-controlled current in the control and auxiliary windings and at the same time reduced by the shunt path constituted by the now unbiased limiting circuit and the auxiliary winding. Equilibrium will be attained when the temperature is sufficiently reduced by the lowered engine speed. In a modification, Fig. 7 (not shown), the potentials in the limiting circuit and the direction of the rectifier are reversed so that the engine temperature now has a minimum working value. Maximum and minimum operating temperatures are combined in the arrangement shown in Fig. 8, in which magnetic amplifiers 35, 36, 37 utilising negative feedback windings 35a, 36a, 37a are provided in the speed-control and temperature-limiting circuits. A thermionic valve may be used in place of amplifier 23 (see Group XL (c) ).
Patent GB-258585-A (GB)
Title: Improvements in or relating to sockets for pupin coils in marine cables
IPC: H02G15/14
Filed: 1926-09-14
Abstract: 258,585. Siemens Schuckertwerke Ges. Sept. 15, 1925, [Convention date]. Discontinuously loaded cables. - In marine telephone cables, the coils 11 are separated by elastic members 14 which are reinforced against radial pressure by insertions of more rigid material. In the construction shown rings 15 of pressure-resisting material such as metal, fibre, press-pan, or hard rubber are embedded in the elastic material, which may be rubber. In a modification the intermediate members may consist of alternate discs of elastic and rigid material, or rings of the rigid material may be set in peripheral slots in the elastic member. In another construction a core of hard rubber with soft rubber at both sides may constitute the intermediate member.
Patent GB-1045344-A (GB)
Title: Improvements in or relating to an electric heating appliance
IPC: H05B3/00
Filed: 1963-06-07
Abstract: 1,045,344. Automatic temperature control. H. F. ZIMMER. June 7,1963 [June 15,1962], No. 22677/63. Heading G3R. [Also in Division H5] Apparatus for heating a synthetic fibre, before or during a stretching process for example, comprises concentrically arranged members 1, 4 and 7 which are cemented together and which are mounted on a bolt 13 by means of circular plates 10 and 11. The outermember 1 is of thin-walled material forming the heating surface and has flanges 2, 3 which define the track over which the material to be heated is run. The intermediate member 4 has a groove 6 which carries a measuring resistor 5 in intimate heat exchange relationship with the member 1, and the inner member 7 is formed with a spiral groove 9 in which is embedded a heating element 8, the heat output of which is controlled in dependence upon the temperature of the member 1 as detected by the measuring resistor 5. The member 4 may be of aluminium with an insulating anodized surface, and the resistor 5 may be of anodized aluminium wire. The member 7 may also be of anodized aluminium, or may be of insulating material.
Patent GB-383323-A (GB)
Title: Improved method of and machine for tightening screw threaded elements or the like
IPC: B60B31/02
Filed: 1931-08-11
Abstract: 383,323. Screwing - up nuts and screws. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A. -(Assignees of Eksergian, C. L. and Smith, O. E. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) Aug. 11, 1931, No. 22733. Convention date, Sept. 5, 1930. Addition to 383,321. [Class 83 (iii).] In a modification of the method and machine described in the parent Specification, all the screw-threaded elements of a work-piece are simultaneously rotated by fluid pressure for tightening thereof. The work, such as a wheel rim 114, is clamped to an annular frame 117 having flanges 119, 120 for supporting the tool-heads 124. Each head comprises a casing 125 within which is slidable a fluid. pressure drill 130 of commercial type, rotation of the drill body being prevented by a screw or roller 132 thereon sliding in a slot 131 in the casing. A cup leather 133 on the drill body coacts with the casing to form a fluid-pressure cylinder for feeding the screwing-up tool 166 to the work when fluid is admitted to an annular pipe 144 communicating with each head through a pipe 143. The same fluid rotates the drill and feeds it forwards, a spring 145 returning the drill when the fluid pressure is cut off. When the nipples are tightened to the required extent the drills stall and so produce a uniform tension throughout the spokes of the wheel.