baber/WOPTO huggingface dataset:
Patent GB-168403-A (GB)
Title: Improvements in or relating to boot or shoe sewing machines and methods
IPC: D05B15/00
Filed: 1920-05-31
Abstract: 168,403. Woodcock, R. B., and British United Shoe Machinery Co., Ltd. May 31, 1920. Boot - sole stitching and assembling machines; rotary horns. -Relates to a turnshoe machine such as described in Specificat i o n s 4173/12 and 20729/12 and consists in the provision of a special movement of the horn to accommadate the sudden increase in the thickness of the work produced by a heel laver attached to the sole before assembling. The horn is normally supported by a spring 32 pressing upwards within a sleeve part 8 of the horn, and is lowered for the introduction and removal of a shoe by means of toggle links 16, 18 and a treadlerod 22. At the time when the stitching passes from the sole only to the sole and sole and heel layer, a downward movement of a predetermined extent is given to the horn by the depression of a treadle-rod 46. This rotates a shaft 42 having rack-and-pinion engagement with the lower support 26 of the spring 32, and the amount of the rotation is determined by the position of stop pins which may be inserted in any of the holes 62. Specification 163,485 is referred to.
Patent GB-657943-A (GB)
Title: Balanced flue heater
IPC: F24C3/00
Filed: 1949-06-02
Abstract: 657,943. Radiant heaters. SOUTH EASTERN GAS BOARD, FUIDGE, G. H., and HUTTON, A. L. June 2, 1949, No. 14852. [Class 126] A gas heating device is provided with a balanced flue and a heat radiant panel. The heater has a casing a within which is a chamber divided by a vertical plate b into a front combustion chamber c and rear inlet and outlet ducts. A cut-away portion c<SP>2</SP> of the combustion chamber c is covered by a metal radiant panel h behind which on the rear wall b of the combustion .chamber c is another metal panel j, a V- shaped baffle k being positioned between the two panels. Insulation n is disposed between the rear panel j, and the rear combustion chamber wall. The outlet duct behind the combustion chamber c is connected with an outlet flue e in the wall f of the room, the inlet duct behind the combustion chamber c being connected with an inlet flue d surrounding the outlet flue e.
Patent GB-1106033-A (GB)
Title: Improvements in or relating to ladders
Inventor: JARVIS RICHARD WILLIAM
IPC: E06C7/08
Filed: 1965-04-08
Abstract: 1,106,033. Ladders. STEPHENS & CARTER Ltd. 8 April, 1965, No. 14894/65. Heading A6L. A ladder has tubular metal rungs and side members, cylindrical parts 3 on the ends of the rungs fitting in holes in the side members and the ends 11 of the rungs fitting tightly between two ribs 10 on each of the side members 1 and the edges of flat treads 8 on the rungs engaging the ribs to prevent rotation of the rungs.
Patent GB-1044887-A (GB)
Title: Improvements in or relating to electric lighting installations
Inventor: HOWARD JOHN HENRY
IPC: F21V21/04
Filed: 1964-04-10
Abstract: 1,044,887. Supporting lamps. ROTAFLEX (GREAT BRITAIN) Ltd. March 18, 1965 [April 10, 1964], No. 14902/64. Heading F4R. [Also in Division E2] For supporting electric lamp housings in a wall or ceiling, an annulus 10 having internal holding means such as ball catches 40 for holding the housing and external means for securing the annulus in place. The ring may have pairs of external lugs 19, 20 spaced at 90 degrees intervals to receive the ends of perforated plates 22A, 22B having racked parts 27 to allow of bending into the plane of the ring and tabs 25, 26 which may be bent to engage the lugs. Alternatively, or in addition, widely spaced lugs 16, 30 to receive larger strips 32 bent outwards between their ends for embedding in plaster. The housing is formed with a thickened ring with recesses to receive the ball catches. The housing may be tapered towards its upper part and fitted with rings of different diameter to fit ceiling rings of different size.
Patent GB-860227-A (GB)
Title: Improvements relating to automatic electric control apparatus
IPC: G05D23/24
Filed: 1957-05-10
Abstract: 860,227. Automatic temperature control systems. MICKLETHWAIT E. W. E. (Garrett Corporation). May 10, 1957, No. 14964/57. Class 38 (4). Apparatus for controlling a variable, including detecting means for producing an error signal which corresponds to the deviation of the variable, the error signal being connected to an amplifier whose output is connected to correcting means of the ON-OFF type is characterized by pulsing means arranged to vary the amplifier sensitivity and hence to varythe error signal at which the correcting means become operative so as to cause the correcting means to operate in pulses, the duration or the duration and repetition rate, of which is dependent on the error signal magnitude. In resistance bridge 30 thermistor 31 is the temperature-sensitive element located in the heated space; 33, 34 may be constant resistances or thermistors, one lagged, situated in the supply duct to give anticipator or rate control. The bridge output is applied to the control windings 41 in series of a pair of magnetic amplifiers 40, which control the opposed coils 56 of a differential relay 55. This relay energizes one or other of relays 61 to switch on motor 20 in forward or reverse, thus varying the ratio of hot to cold air in the supply duct. Each load winding 45 has in series a bridge rectifier 50 from which is derived a D.C. feedback voltage for bias windings 42. Relay 61 also switches on pulse circuit 70; resistor 75 is connected across resistor 74 and the increased charging current to capacitor 73 causes an exponential voltage across bias windings 43. Depending on the error amplitude this winding will quickly-if the error is small-or less quickly, overcome the control winding effect and relay 55 will be released. Capacitor 73 discharges to its original voltage and the amplifiers regain their sensitivity and a further control sequence is initiated. Thus the control is periodic, the on/off ratio and repetition rate of the periods depending on the amplitude of the error. Bias winding 44 is energized from limiter circuit 80 when the temperature in the supply duct exceeds a given range. Thermistor 81 in the duct unbalances bridge 82 and the bridge output is applied to the rectifier 90. Until this rectifier develops a voltage sufficient to overcome the D.C. bias across resistor 95 (which is in the rectifier A.C. circuit) no current can flow in the windings 44. These windings are arranged to oppose windings 41, thus limiting the control effect. In an alternative embodiment (Fig. 6, not shown), windings 44 are connected to circuit 80 to pass only D.C. current and their action is then as a bias control to reduce the amplifier sensitivity in the same manner as windings 43; the limiting effect is the same. Specifications 860,228 and 860,229 are referred to.
Patent GB-1432296-A (GB)
Title: Disazo dyestuffs
IPC: C09B62/83
Filed: 1974-04-04
Abstract: 1432296 Disazo dyestuffs BAYER AG 4 April 1974 [5 April 1973] 15005/74 Heading C4P Novel dyes of formula (where A is C 2 -C 5  alkylene; R 2  to R 4  are H, hal, optionally substituted alkyl or alkoxy; R 5  is optionally substituted C 1 -C 4  alkyl; B is a 1,4-phenylene or 1,4-naphthylene radical and D may contain up to four further substituents chosen from halogen or optionally substituted alkyl or alkoxy) are prepared by alkylating the corresponding dyes of the above formula where R 5  is H. The latter dyes are obtained by reacting the appropriate diazotized sulphato-alkoxy aniline with an amine of formula where Z is H, SO 3 H or -CH 2 SO 3 H; then after splitting off the Z group where necessary, the diazotized monoazo dyes are reacted with the appropriate phenol. Alternatively the starting dyes may be prepared using the corresponding hydroxy alkoxy-anilines and forming the sulphato alkyl group at an intermediate stage before the alkylation, by reacting with a sulphonating agent. The dyes are used for dyeing or printing, in yellow to red shades, nitrogen containing fibres particularly wool, silk, synthetic polyamide and polyurethane fibres.
Patent GB-720978-A (GB)
Title: Water-tight rivet for use in fluid-riveting
IPC: F16B19/00
Filed: 1953-05-29
Abstract: 720,978. Rivets. WORM, K. T. May 29, 1953 [Oct. 3, 1952 ; May 9, 1953], No. 15034/53. Class 89 (1). [Also in Group XXII] Rivets for producing water tight joints in blind-riveting have a headed mandril 5 enclosed in the rivet which has the end closed at 9. During setting the rivet material flows laterally between the underside of the head and the surface of the plates forming an upset 7. The mandril is weakened at 8 and when riveting is complete fractures in a plane substantially that of the surface of the plate on the entry side of the rivet. In a modification the head of the mandril remains beyond the plates on the inaccessible side and the fracture is arranged to take place some distance from the surface of the plates on the entry side.
Patent GB-1097685-A (GB)
Title: Improvements in or relating to heating devices for pressurised dispensing containers
IPC: A45D27/02
Filed: 1965-04-09
Abstract: 1,097,685. Pressurized dispensing containers. CARTER-WALLACE Inc. April 9, 1965 [April 13, 1964], No. 15060/65. Heading F1R. A device for heating the contents, e.g. shaving lather, of a pressurized dispensing container during discharge, comprises a chamber 29 connected to the container outlet 21 and communicating with an outlet chamber 28 via heat-conductive tubes 32, which may be surrounded by hot water in a chamber 16 or may be pinned and exposed to a flow of hot water from a tap. Chamber 28 communicates with a delivery nozzle 35 on an operating button 33 which is depressed to move the device downwardly to open container valve 12.
Patent GB-395848-A (GB)
Title: Improvements in or relating to the drying and moistening of tobacco
IPC: A24B3/04
Filed: 1932-05-27
Abstract: 395,848. Conditioning tobacco. QUESTER, E., 141, Wiillnerstrasse, Lindenthal, Cologne, Germany. May 27, 1932, No. 15116. Convention date, Nov. 16, 1931. [Class 130.] Tobacco is dried or moistened in a rotating drum by subjecting it exclusively to the action of dry or moist air in counter- or co-current, the drum having baffle members comprising substantially radial parts and other parts substantially perpendicular thereto, so that the tobacco trickles or rolls during the rotation of the drum. To ensure thorough mixing of the tobacco, the baffles are discontinuous and spaced in the longitudinal direction. In the form shown the tobacco is fed from a hopper a to a drum b, from which it is discharged to a funnel e, the drying period being regulated by a damming device c. The baffle members f are spaced at points d.
Patent GB-582107-A (GB)
Title: Improvements in and relating to methods of treating carbon electrodes
IPC: H01J19/30
Filed: 1944-08-11
Abstract: In the production of carbon electrodes for use as anodes in vacuum tubes, the electrodes preferably after the removal of volatile matter, are smoothed, polished, dehydrated by heating, and are freed from loose graphite particles by immersion in a liquefied gas until boiling ceases.  The electrodes are allowed to attain normal temperatures in a dry atmosphere prior to the conventional vacuum tube processing.  Liquefied air, oxygen, nitrogen or other gas, may be used for the immersion liquid.
Patent GB-110909-A (GB)
Title: Improvements in and relating to Spring-wheels.
Inventor: STITZEL FREDERICK
IPC: B60B9/00
Filed: 1917-10-22
Abstract: 110,909. Stitzel, F. Nov. 2, 1916, [Convention date]. Spring wheels with continuous outer rigid ring and helical springs.-Separate resilient devices are arranged between the inner and outer rims 3, 4, each consisting of a bracket 7 secured to the rim 4 formed with a housing 15 for a helical spring 16 (in compression), and a bracket 6 secured to the rim 3 and formed with walls 9 between which the bracket 7 is adapted to slide. Balls 13 are fitted in coned recesses in plugs 11, 17, so that relative displacement of the rims 3, 4, causes further compression of the springs 16. As applied to disk wheels, lugs 28, 29, Fig. 6, on the brackets are bolted between the wheel-disks 25 and flanges 27 on the outer rim respectively.
Patent GB-1508982-A (GB)
Title: Tyre fitting tool
IPC: B60C25/02
Filed: 1974-04-06
Abstract: 1508982 Mounting tyres on flat-based wheel rims DUNLOP Ltd 1 April 1975 [6 April 1974] 15364/74 Heading B7C Apparatus for fitting a tyre to a flat based wheel rim having one bead retaining flange removed comprises a support frame 4, a pivoted lever 7 on which a stub shaft 16 is pivotally mounted, and a tool having a shank 17 telescopically receiving the shaft 16, the shank and shaft being secured against relative movement by a pin 18 engaging in bore 17 in the shaft 16 and a selected pair of opposed apertures 32 in the shank. The tool also includes an arcuate plate P having an edge 29 for engaging the rim base and surfaces 22, 23 for engaging the interior surface of the sidewall of the tyre to be first forced on to the rim.
Patent GB-1147202-A (GB)
Title: Improvements in or relating to novel steroids and the manufacture thereof
IPC: C07J75/00
Filed: 1966-04-06
Abstract: 1,147,202. 7α-Methyl androstane derivatives. UPJOHN CO. 6 April, 1966 [7 April, 1965], No. 15369/66. Heading C2U. The invention comprises of compounds of the formula wherein R 1  and R 2  are hydrogen or methyl, Z<SP>1</SP> is lower alkyl of from one to twelve carbon atoms, inclusive, or the lower acyl radical of a hydrocarbon carboxylic acid containing from one to twelve carbon atoms, inclusive, and M is | -C = O; and processes whereby (1) a #<SP>4</SP>-3- ketone of formula wherein R 1 , R 2  and M are as defined above, is reacted with an anhydride, chloride or bromide of an organic carboxylic acid in the presence of an acid catalyst to give the corresponding 3- acyloxy-3,5-diene compound, (2) #<SP>4,8</SP>-3-ketones of formula wherein R 1 , R 2 , A, Z and M are as defined above; are reacted with an excess of Grignard reagent in the presence of a catalyst. An anhydride of a hydrocarbon carboxylic acid in a solvent is added to give 3,5-androstadiene-3- monoacylate of formula wherein R 1 , R 2 , A, Z and M are as defined above and Ac is the acyl radical of a hydrocarbon carboxylic acid containing from one to twelve carbon atoms, inclusive. The whole reaction being carried out with the exclusion of oxygen. (3) The #<SP>4</SP>-3-keto compounds of formula wherein R 1 , R 2  and M are as defined above; are converted to their corresponding 3-enolethers by known methods, e.g. by reaction with trialkyl orthoformate in the presence of a catalyst. Pharmaceutical compositions comprising of the above compounds having erythroporetic, anti-fertility, anti-androgenic and anti-estrogenic activities are administered orally or parenterally.
Patent GB-979122-A (GB)
Title: Method of producing semiconductive polymer materials
Inventor: TOPCHJIEV ALEXANDER VASILIEVIC
IPC: H01B1/12
Filed: 1961-04-28
Abstract: Materials having semi-conducting properties are made by a two-stage heat-treatment of previously stretched polyacrylonitrile fibres or fabrics made therefrom, the first stage being carried out at substantially 200 DEG  C. and the second stage at 500-1100 DEG  C., the process resulting in carbon fibres.  Preliminary stretching may be in the range 10-25 times.  Preferably polyacrylonitrile having an average molecular weight of not less than 10,000, the fibres having a metric worsted number in the range 6000-7000, is used.  Metric worsted number= number of 1000 m. lengths in 1000 gms. Fabrics used should have a weave ensuring free shrinkage. At least one stage of the heat-treatment may be carried out in air, in an atmosphere of inert gas, or a gas or vapour containing free or combined nitrogen, e.g. ammonia, at atmospheric or superatmospheric pressures, or in vacuo, or in a vaporized hydrocarbon medium (e.g. paraffin) or in powdered carbon as a heat transfer medium, and an absorbent medium for vapours evolved.  The two stages may be effected in the same medium or in different media.  In examples, first stage heat treatment is for 20 hours at 200 DEG  C. and that of second stage heat-treatment varies from 20 minutes to 1 hour at from 500-1100 DEG C.  Materials so made have electrical conductivities ranging from 10-6 mho./cm. to 102 mho./cm. and the weight of the treated material is 40-70% of the initial weight.
Patent GB-1415276-A (GB)
Title: Ceramic capacitors
IPC: H01G4/12
Filed: 1974-04-08
Abstract: 1415276 Capacitors SIEMENS AG 8 April 1974 [9 April 1973] 15435/74 Heading H1M A ceramic capacitor comprises tubular ceramic body 1 having two opposite relatively wide flat sides and two relatively narrow sides, one electrode comprising a metal coating 6 on the inner surface to which lead wire 7 is connected at one narrow side, the other electrode comprising metal coating 9 on the outer surface covering only one of the narrow sides and as shown extending over part of the wide sides, lead wire 8 contacting it at the latter narrow side. The dimensions are suitably such that the lead wires are spaced apart the required distance for insertion in a printed circuit board. The capacitance depends on the extent to which layer 9 covers the wider sides and may be adjusted by grinding away layer 9.
Patent GB-1468785-A (GB)
Title: Tilting device for a lorry drivers cabin
IPC: B62D33/07
Filed: 1975-04-15
Abstract: 1468785 Tilting cab mechanisms MAGIRUS DEUTZ AG 15 April 1975 [24 April 1974] 15452/75 Heading B7B A cab pivotally mounted for tilting about an axis 4 on a frame 5 is moved by a mechanism 6 comprising a spring element, such as a torsion bar 10 or helical spring, and an actuator 7. The torsion bar extends along axis 4 and has a normally arranged pivot arm 11 at one end which is pivoted at 9 to the actuator. The other end of the torsion bar is connected to the frame and actuator 7 is pivoted to the cab, however, this arrangement may be reversed (Fig. 5, not shown) so that the bar is connected to the cab and the actuator to the frame. On initial elongation of actuator 7 the bar is stressed as arm 11 moves through angle α until the weight torque of the cab about axis is balanced. Further extension of the actuator then tilts the cab and when the centre of gravity is above axis the arm 11 is back at its original position. On further tilting the torsion bar is stressed in the opposite direction as arm 11 turns through angle γ. A stabilizer bar (24) (Fig. 6, not shown) may be provided to prevent lateral tipping of the cab and may act as a housing for the torsion bar.
Patent GB-240238-A (GB)
Title: Improvements in or relating to alternating current systems
IPC: H05G1/34
Filed: 1924-06-26
Abstract: 240,238. Jackson, W. J. Mellersh-, (Starkweather, G. A.). June 26, 1924. Thermionic valve circuits. - In an alternating current system having means independent of but for supplying current to a load, in such a way that the current remains substantially constant for a given potential independent of fluctuations in the supply voltage, there is provided additional means in combination with a resistance in series with the load for selecting one of a number of optional current values and at the same time for causing each of the values when selected to remain constant notwithstanding fluctuations in the supply voltage. In the form shown in Fig. 1 and applied to an X-ray tube 14, the supply 11, 12 is con. nected in series with the primaries 18, 20 of a main and an auxiliary bucking transformer 15, 16 respectively, the secondaries 19, 22 of which are in series with the filament 13. The transformer 15 is saturated at a voltage somewhat below normal and the transformer 16 has air-gaps 23, so that, for one particular value of filament current, fluctuations of the supply voltage will be neutra.- lized in the secondary circuit. To effect this neutralization at other values of filament current, a variable resistor 30 and inductor 31 are placed in series in the load circuit, and their proportions are so chosen that the current determined by the position of the regulating arm 32 is unaffected by changes of supply voltage. The Specification contains curves in illustration of this. The insulator transformer 26 serves to protect the supply from the high potential system 28, 29. Since the transformers neutralize the fluctuations for one value of load current, then by utilizing the arrangement shown in Fig. 5 and comprising a resistor 36 in series with the load and a resistor 37 in parallel, the load on the secondaries can be kept at this particular value and the filament current can be varied if the proportions of the resistors are suitably chosen.
Patent GB-735743-A (GB)
Title: Automatic focus adjuster
IPC: G03B3/00
Filed: 1953-06-05
Abstract: 735,743. Automatic focusing control systems. STANDARD TELEPHONES & CABLES, Ltd. June 5,1953 [Sept. 22, 1952], No. 15568/53. Class 38 (4). [Also in Group XL (b)] A camera is automatically focused by means of two further optical systems arranged when the camera is in focus to produce images of the same object on photo-sensitive electrodes which are, respectively, equally under- and overfocused. The outputs of the two electrodes vary differentially as the camera is defocused and their difference is used to control a servomotor which adjusts the lens systems of the three optical systems to refocus the camera as the two outputs are restored to balance. As shown, the lenses 2, 3, 4 of the three television camera optical systems 2-6, 3-6, 4-7 are mounted on a common carrier. When the normal optical system 2-6 is focused on any object the two other optical systems receive light from the same object but are defocused in opposite senses by the same amount, so that the camera tubes 6, 7 produce balanced outputs. When the distance of the object varies, the outputs of the camera tubes 6, 7 vary differentially, and after amplification at 11-12 filtering at 13-14 and rectification at 15-16, the outputs are combined in a servo-device 17 which drives a motor 8, 9 in the corrective sense to move the lens carrier and refocus the normal optical system. An image orthicon camera tube may be used for the main tube 5 and similar image dissector tubes or iconoscopes for the tubes 6, 7 or all three tubes may be similar. Mechanical scanning may be used instead of electron scanning to produce the differential signals.
Patent GB-185511-A (GB)
Title: Improvements in or relating to collapsible screens
IPC: E06B9/06
Filed: 1921-06-06
Abstract: 185,511. Jarvis, B. E., and Duncan, B. A. June 6, 1921. Reel and web apparatus; moving and changing apparatus.-To the free end of a collapsable gate or screen of the lazy-tongs type a sheet of fabric, or the like a, which is adapted to bear an advertisement is attached by " keyhole " slot connecting plates u. The other end of the fabric sheet is carried by a spring-roller b. held in brackets d, e, the lower bracket e having a spring-pressed pintle r, by means of which the sheet may be easily interchanged.