baber/WOPTO huggingface dataset:
Patent GB-1270389-A (GB)
Title: Switching device for solenoids
Inventor: DANILEWICZ LUDOMIR
IPC: H03K17/97
Filed: 1968-07-09
Abstract: 1,270,389. Switching solenoids. ADVANCED DYNAMICS Ltd. 7 Oct., 1969 [9 July, 1968], No. 32596/68. Heading H3T. A circuit comprises an electro-mechanical solenoid 1, 2 provided with a tap 5 on its energizing winding, a transistor 9 having its emitter collector path connected in series with a D.C. source and a portion of the winding and a switch arrangement 7 or 10 operable to establish a D.C. path exclusive of said winding between the emitter and collector of 9. The closing of a switch 7 for a single operation or of switch 10 for continuous operation causes an initial current through winding 1 with consequent build-up of flux in winding 1 and conduction of transistor 9 which increases progressively with increase of flux to cause the armature 2 to be attracted to move to a predetermined maximum distance within winding 1 when the flux collapses causing transistor 9 to be cut off and the armature 2 to return to its initial position.
Patent GB-1128167-A (GB)
Title: Improvements in and relating to disc brakes
Inventor: BELLER HANS ALBERT
IPC: F16D65/14
Filed: 1965-07-30
Abstract: 1,128,167. Disc brakes. GIRLING Ltd. 26 July, 1966 [30 July, 1965], No. 32601/65. Heading F2E. In a calliper type disc brake a piston and cylinder assembly 12, 14 transmits braking thrust to friction pads 18, 20, an adjustable strut is formed by an internally threaded sleeve 36 engaging with the inner end of the piston and in turn is engaged by an externally threaded spindle 40 arranged to act against one of the friction pads 18, a generally U-shaped pawl 42 being pivotally mounted on pins 44 on the piston 12 and extending along the sleeve to coact with ratchet teeth 38 formed on the inner end of the sleeve. A radial pin 48 fixed to the cylinder extends towards an abutment 46 formed on the pawl 42 and a resilient finger 50 provided on the base of the pawl biases the pawl in a direction to engage the abutment with the pin so that relative movement between the piston and cylinder will cause the pin to swing the pawl about its pivot for turning the sleeve 36 to thereby alter the length of the strut and provide an automatic wear adjustment means. The U- shaped pawl 42 straddles the forward end of the piston and the pawl is connected to the piston at diametrically opposed points. Fig. 1 shows an embodiment wherein the disc brake is provided with a generally horizontal yoke or hoop member 22 which passes around a stationary bracket 10 and straddles the periphery of the brake disc (not shown) to act on the back plate of the friction pad 20. Mechanical actuation of the disc brake is provided by means of a cam shaft 28 having one end journalled in the cylinder 14 and the other end engaged by a lever (not shown) operated by a cable in a conventional manner to turn the cam shaft 28 within the piston 12 such that the cam surface 32 thereof co-operates with the square edge of a square hole 26 in the piston 12. The axial width of the hole 26 is greater than that of the portion of the cam shaft which lies within the hole such that mechanical operation of the brake is independent of the hydraulic operation thereof. In an alternative embodiment (Figs. 6 to 8 inclusive, not shown) the invention is applied to a swinging calliper disc brake wherein a generally U-shaped calliper straddles the brake disc and is pivotally mounted so as to be capable about lugs provided on the calliper housing.
Patent GB-175423-A (GB)
Title: Apparatus for testing the condition of bacon, ham and the like
IPC: G01N33/12
Filed: 1920-11-19
Abstract: 175,423. Garner, G. M. Nov. 19, 1920. Food. withdrawing samples for testing internal condition of. - For testing the internal condition of bacon, hams, &c., a steel cutting-tube d is provided with a longitudinal slot b, allowing the meat cut by the cutting-edge c and forced up the tube to be viewed through the slot b.
Patent GB-172633-A (GB)
Title: Cotton products and process for making the same
IPC: D06L1/00
Filed: 1921-12-06
Abstract: Natural waxes and oily substances are removed from cotton fibres, yarns, threads, and fabrics, without subjecting the material to the usual bleaching operation and its consequent wakening, by dissolving them out with ether, gasolene, benzol, or similar solvents, or by emulsifying them for a sufficiently long period with soap, or by saponifying with weak soda.  Reference has been directed by the Comptroller to Specifications 19428/96, 29514/04, 17898/10, and 25206/11, [both in Class 120 (iii), Yarns &c.], 131,798, and 170,534.
Patent GB-198710-A (GB)
Title: Improved method of and apparatus for forming rubber or like hot water bottles or other like articles
IPC: B29D22/00
Filed: 1921-12-06
Abstract: 198,710. Clarke, H. B. R., Skellon, H., and Roberts, T. H. Dec. 6, 1921. Moudling india-rubber, hollowware.-Hot-water bottles &c. are moulded by placing a sheet of rubber and fabric material, which cannot be extended by gaseous pressure alone, in each of two mould parts a, b, pressing the material by hand to make it conform to the shape of the mould, and vulcanizing the united parts under pressure, sufficient internal pressure being provided to hold the sheets in position. The internal pressure may be generated by chemicals placed between the sheets or by forcing gas through a pipe h formed in a funnel piece g, which fits into the filling-funnel e. The overlapping edges f of the fabric may be coated with adhesive, and the fabric on each side of the neck may be used for holding purposes by cutting holes in it and inserting vulcanite rings therein.
Patent GB-945749-A (GB)
Title: Miniature semiconductor devices and methods of producing same
IPC: H01L21/76
Filed: 1960-02-02
Abstract: 945,749. Semi-conductor devices. TEXAS INSTRUMENTS Inc. Feb. 2, 1960 [Feb. 6, 1959], No. 32744/63. Divided out of 945,734. Heading H1K. The subject matter of this Specification is included in Specification 945,734 from which the present Specification is divided but the claims relate to a device comprising a semi-conductor body with three superposed regions of alternate conductivity types forming a pair of PN junctions extending to a surface of the body and there defining two enclosed areas one within the other, with an insulating oxide of a semi-conductor covering selected parts of said surface, first and second ohmic contacts secured to said surface on opposite sides of the inner PN junction and a third ohmic contact secured to the third region. Specifications 945,737, 945,738, 945,739, 945,740, 945,741, 945,742, 945,743, 945,744, 945,745, 945,746, 945,747 and 945,748 also are referred to.
Patent GB-1059788-A (GB)
Title: Improvements in and relating to disc brakes
Inventor: EGGSTEIN GIORGIO
IPC: F16D65/54
Filed: 1964-08-12
Abstract: 1,059,788. Disc brakes. ERNST HEINKEL A.G. Aug. 12, 1964, No. 32804/64. Heading F2E. In a disc brake of the kind having a floating caliper 7 straddling a peripheral portion of a disc 1 and supporting linings 8, 9 having backing plates 10, 11, and including an hydraulic cylinder formed in a housing 2 secured to the caliper, the assembly being guided for axial movement as by a sleeve 4 fixed by a bolt 5 to a support 6, manual application of the brake is effected by a plunger 17, which incorporates an automatic wear adjuster, and which is passed through a bore in the bottom wall of the cylinder, wherein it is sealed by a seal 18, its end protruding in the form of a hexagonal head 27 to enable manual adjustment, the head 27 being engageable by an abutment 19 on an operating lever 21 which is pivoted at 21 on the housing 2 and is operated by a cable 22, the sheath of which is supported on a bracket 29 carried by the housing. A vehicle braking system incorporating the brake has its front and rear brakes provided with similar assemblies in which the pistons are of equal diameter but of which only the rear assemblies include the manually operated plunger, so that a larger effective piston area is provided for the front brakes than for the rear brakes. The automatic adjuster comprises a threesection split nut member (23) (Fig. 2, not shown), co-operating with a helical thread on the plunger and with a shoulder of the piston to limit rearward movement of the latter, adjustment being automatically effected during hydraulic operation by engagement of a stop ring 25 on the piston with the rear face of the nut to cause it to expand and slip one tooth pitch. The ring 25 has a bent-over portion to prevent rotation of the nut. A circlip 26 limits retraction of the plunger following a manual brake application. Manual adjustment of the nut, e.g. to allow new pad linings to be fitted, is effected by rotation of the plunger by applying a spanner to the protruding hexagonal end.
Patent GB-978750-A (GB)
Title: Temperature control systems
Inventor: BUSCH FLOYD HENRY
IPC: G05D23/24
Filed: 1962-08-27
Abstract: 978, 750. Automatic temperature control systems. GENERAL ELECTRIC CO. Aug. 27, 1962, No. 32814/62. Heading G3R. A temperature control system for an electrically heated cooker comprises selector switches whereby the cooking temperature can be selected and a temperature sensing device in contact with the cooking reset by means of which the content in the cooking vessel can be maintained at the selected temperature. A cooking vessel is placed on an electric heating element L so that a temperature sensing device 27 containing a thermistor RT is in heat conducting relationship with the bottom of the vessel. The heating range of the element L is selected by means of a control 21 and the point in this range by a second control 21a. Movement of the control 21 selects the range resistor R3 or R4 or R5 by means of wiper 63 and by means of wipers 61, 62 connects the supply 71, 72 to the primary winding 90 of a transformer Tl. Movement of control 21a modifies the effect of the selected range resistor by placing a portion of resistor RC in series therewith in one arm of a bridge (see Fig. 4). A further arm of the bridge comprises the thermistor RT, shunted by an overload protecting resistor RO, whilst the remaining arms of the bridge are formed by calibrating resistors R1, R2. The bridge is fed with rectified unsmoothed D.C. by means of the transformer T1 and diodes D4, D5. A capacitor C is charged from the transformer T1 over diodes D1, D2 resistors R6, R7 and a Zener diode ZD, the charging circuit including a variable impedance-such as a transistor-the impedance of which is dependent upon the unbalance of the bridge containing the thermistor RT. When the capacitor C reaches the break-down voltage of a device such as a Shockley diode it discharges into a transformer T2 thereby producing firing pulses for backto-back silicon controlled rectifiers SCR1, SCR2 in the supply circuit to the heating element L. Thus when the thermistor RT is cool and a temperature selected by controls 21, 21a the bridge is largely unbalanced, the transistor impedance is low and the capacitor rapidly charges so that the silicon controlled rectifiers fire early in the half cycles and the amount of energy supplied to the element L is large. As the thermistor heats up the bridge tends to approach balance so altering the transistor impedance, lengthening the charging time of the capacitor C and thereby reducing the energy delivered to the heating element L. Equilibrium is reached when the bridge attains a state when the energy delivered to the element L is just sufficient to maintain the cooking vessel and hence the thermistor RT at the temperature selected by the controls 21, 21a. In other embodiments the Zener and Shockley diodes are replaced by neon tubes and the resistors forming the bridge are arranged to form a variable impedance chain to replace the transistor.
Patent GB-759450-A (GB)
Title: Process of manufacture of monochloroacetic acid
IPC: C07C51/363
Filed: 1954-11-12
Abstract: Monochloracetic acid is produced by passing chlorine and sulphur dioxide in a volumetric ratio of Cl2 : SO2 higher than 10 : 1 into a mixture of acetic acid and acetic anhydride containing less than 25 per cent by weight of acetic anhydride, the reaction mixture being kept at a temperature of 100-150 DEG  C. and subjected to the action of actinic rays.  The preferred reaction temperature range is 115-120 DEG  C.  It is possible to operate under a slightly higher pressure than atmospheric.  An example is given of the chlorination of acetic acid containing 20 per cent by weight acetic anhydride with 75 l. of chlorine and 2 l. of sulphur dioxide at a temperature of 115-120 DEG C., while irradiating with a mercury vapour lamp.
Patent GB-742588-A (GB)
Title: Improvements relating to folding mechanisms for sheet material and particularly laundered articles
IPC: D06F89/00
Filed: 1952-12-30
Abstract: 742,588. Folding towels &c. IRELAND, A. A., PRITCHARD, H. K., and SPRECKLEY, F. Dec. 30, 1953 [Dec. 30, 1952], No. 33003/52. Class 42 (2). A machine for folding towels &c. includes a movable table 1, Fig. 1, extending from the input to the output end of the machine, electrically controlled means for arresting the leading edge of an article carried by the table, a switch mechanism 86 having one pair of contact elements 92, 93, Fig. 4, adapted to control both the operation and release of the arresting means and two members 80, 82 adapted to be engaged by the article and actuate the switch mechanism ; the arrangement is such that member 82, on engagement by the leading edge of the article, causes the arresting means to be operated and member 80, on release by the trailing edge of the article, causes the arresting means to be released. As shown, the table 1 consists of endless belts. Member 80 consists of a finger which, when raised by the leading edge of the article, raises a stop 87 to the dotted-line position 96, Fig. 4, to free the end 94 of a spring 91 carrying contact 93. As the leading edge rides up on to the flange 14 of a bar 7 it deflects member 82, thereby turning a cam 84 in the switch to close contacts 92, 93 ; a solenoid device 10 is thereby energized to raise bar 7 and clamp the leading edge against a bar 12. When the trailing edge releases finger 80, stop 87 falls to depress the end of spring 91 and move contact 93 away from contact 92 ; the solenoid is de-energized and bar 7 falls under the control of a dashpot 25, releasing the leading edge of the article to fall on to the trailing edge. Two of the above folding mechanisms may be arranged in sequence to provide two folds, the article then passing to a machine for folding it at right angles. The Provisional Specification describes an arrangement in which bar 7 is replaced by a grid-like structure having inclined feet depend. ing between the conveyer belts. A single switch with time-delay control may be used. Alternatively, two switches may be placed in series with the lifting solenoid, one controlled by an operating arm such as 80 located near the lifting grid and normally in the " off " position, and the other by an arm normally in the " on " position and located ahead of the grid by a distance dependent on the length of article to be folded ; the leading edge is then raised when the trailing edge passes the latter arm and is lowered when it passes the former.
Patent GB-481272-A (GB)
Title: Improvements in central-heating boiler
IPC: F24H1/22
Filed: 1937-11-30
Abstract: 481,272. Hot-water boilers. HOYER, J. V. GUDMAND-. Nov. 30,1937, No. 33067. Convention date, Dec. 14, 1936. [Class 64 (i)] In a central - heating boiler comprising separable interconnected water-filled units connected individually or collectively by pipes with joints outside the boiler to an outlet chamber and an inlet chamber, the units comprise two mainly cylindrical water jackets 1, 2 separated by a downwardly discharging annular flue 6, a pipe coil 3 with a collecting chamber, and a fuel magazine with water-filled walls 4 ; and the outer water jacket 1 is connected to a return pipe 12 and to a collecting chamber 14, which is outside the boiler and is connected to the other units, each of which is connected separately to a common outlet chamber 21. Pipes 15 which support the grate 5 connect the lower part of the jacket 2 to the collecting chamber 14, which is connected by pipes 13, 24, 28 to the other units. The units 2, 3, 4 are connected by pipes 20, 25, 29 respectively to the outlet chamber 21, so that the coil 3 and unit 4 each form a separate circuit from the collecting chamber 14 to the outlet chamber 21. The water jackets 1, 2 are connected to the return pipe 12 and to the outlet chamber 21 to form a separate closed circuit.
Patent GB-967410-A (GB)
Title: Improvements in or relating to writing pads or tablets
Inventor: LANGBART REGINALD VICTOR
IPC: B43L1/12
Filed: 1962-08-29
Abstract: 967,410. Writing tablets. R. V. LANGBART Ltd., [trading as T. X. PRODUCTS]. July 22, 1963 [Aug. 29, 1962], No. 33104/62. Heading B6P. A writing tablet comprises a sheet or plate covered with a dark adhesive layer, an intermediate semi-transparent sheet, and an overlying transparent sheet, and written matter is obliterated by a slider 3 movable between the adhesive and the semi-transparent sheet, the slider 3 being movable along a flexible band 4 secured to a backing board 1 or to the back of a board 5 secured to the board 1. The slider is formed with two slots for the band to pass through, with finger-engaging means 13. The board 1 may have pivoted thereto at its left edge a front plate with an aperture for the tablet and slider, and after location of the tablet and slider on the board 1, the front plate is secured thereto by adhesive.
Patent GB-501560-A (GB)
Title: Process for the pyrolytic conversion of hydrocarbon oils
Filed: 1937-11-30
Abstract: 501,560. Cracking, coking, and re-forming oils. UNIVERSAL OIL PRODUCTS CO. Nov. 30, 1937, No. 33129. Convention date, Nov. 30, 1936. [Class 32] In a combined process for subjecting separated fractions of crude oil stock to cracking, coking and reforming 'operations, a charging stock of wide boiling-range is fed through lines 2, 4, 13 with or without passage through a heat exchanger 12 into a fractionating tower 6 where it is separated into (a) a light gasolinenaphtha fraction taken overhead through line 48, (b) a relatively light reflux condensate taken off through line 26, and (c) a heavy fraction collected at the bottom of the tower and removed through line 18. If desired a stock of lower boiling-range may also be fed 'to the tower 6 through lines 7, 10, 13. The heavy fraction is cracked in the coil 20 while the light reflux condensate is cracked in the coil 31, and the products of both crackings are passed downwardly through a reactor 24 so as to be sprayed against the walls thereof. The liquid and vaporous reaction products are removed together through line 36 to an evaporator 38 where vapours are separated ; the vapours are passed through line 46 into the tower 6, and the liquid residues are fed through line 42 into the lower portion of a tower 45 where they are flashed with reduction of pressure. Alternatively, part of the residues may be removed to storage through line 95 and cooler 97 or passed through line 42<1> for treatment in a coil 171. From the flashing operation by fractionation in the tower 45, (1) a gasoline fraction is segregated and taken overhead through line 220 and cooler 222 to receiver 225, (2) a condensate is collected on plate 117 and. may be fed through lines 194, 197 into tower 6, or re-formed by heating it in coil 110 to high temperatures and then recycled in part through line 119 to the tower 45, (3) heavy residues are collected at the bottom of the tower, and removed through line 169, and, after passage through coil 171, are injected into coking vessels 177, 177<1> where they are reduced to coke with the aid of hot vapours from the coil 110 injected through lines 186, 186<1>, and also, if desired, with the aid of part of the products from coil 31 fed through line 182. Vapours from the coking vessels pass through line 193 into the tower 45. The light 'fraction taken overhead from the tower 6 through line 48 is in part condensed in cooler 53, to provide reflux for tower 6 and the major part is fed through line 50, where it is mixed with vapours taken overhead from the tower 45 through line 200, the mixed vapours being subjected to a final fractionation in a tower 52 from which gasoline of desired quality is removed through line 65 and cooler 67. to receiver 70, while a reflux condensate is removed through lines 85 107 and re-formed in the coil 110.. Temperatures specified for the various stages'comprise (1) coil 20, 455-510‹ C., (2) coil 31, 482- 540‹ C., (3) coil 110, 510-566‹ C., (4) coil 171, 428-566‹ C.
Patent GB-651791-A (GB)
Title: Improvements in or relating to photographic film processing apparatus
IPC: G03D5/00
Filed: 1947-12-17
Abstract: 651,791. Automatic control systems. KODAK, Ltd. Dec. 17, 1947, No. 33300. Convention date, Dec. 17, 1946. [Class 38 (iv)] [Also in Groups XIII and XX] In a photographic developing apparatus, the opacity of the developed photographic film is maintained substantially constant by adjusting the time for which developer is applied to the film in accordance with the opacity of the film as measured by means of a lamp 103 and a photo-cell 105. The amplified out-of-balance output of the cell and an opposing standard potential supplied by battery 114 is employed to drive a reversible A.C. motor 106 which moves the developer applicator 64 about the drum 12 around which the film F passes, so as to alter the time for which developer is applied to it prior to applicator of fixer by the applicator 65.
Patent GB-1173429-A (GB)
Title: Improvements in or relating to Vacuum Systems
Inventor: CRASWELL KENNETH BRIGGS
IPC: B01J3/00
Filed: 1967-07-20
Abstract: 1,173,429. Vacuum chambers. BIR-VAC Ltd. July 19, 1968 [July 20, 1967], No.33444/67. Heading FIX. A vacuum system for high-vacuum vapourcoating processes comprises a vacuum vessel 2 supported by a cabinet 1, and a base-plate 3 which is moved up and down by a hydraulic ram 6 to close and open vessel 2. Ram 6 and vessel 2 are connected to a vacuum pump 8 and hydraulic pump 10, respectively, which may be located in the cabinet 1, or, when the room 12 housing the cabinet 1 is a "clean" room, in an adjacent room 12.
Patent GB-212313-A (GB)
Title: Improvements in wearing apparel
IPC: A41B9/08
Filed: 1922-12-08
Abstract: 212,313. Debenhams, Ltd., and Zilva, G. Dec. 8, 1922. Body undergarments; combinations; under skirts, bust improvers.-In a combination undergarment comprising, as shown in Fig. 3, a brassiere a, hip belt b, and knickers f, divided skin. or petticoat, the hip belt is stiffened or reinforced and is connected to the brassiere by sewing in a substantially horizontal line c, and both brassiere and hip belt are provided with vertical darts m to support the figure. Bones or stiffeners d are detachably mounted in pockets e, and stocking suspenders k may be detachably secured to buttons. The knickers or divided skirt may be provided with a crutch flap. An accordian-pleated skirt may be connected to the hip belt. The brassiere is provided with shoulder straps o. The knickers may be detachably secured to the hip belt. Buttons engaging loops h may serve to fasten the garment at the back.