baber/WOPTO huggingface dataset:
Patent GB-258285-A (GB)
Title: Improvements in or relating to finishing machines for boots or shoes
IPC: A43D95/22
Filed: 1926-09-13
Abstract: 258,285. United Shoe Machinery Corporation, (Assignees of Lund, T.). Sept 14, 1925, [Convention date]. Burnishing; finishing.-In a finishing machine having a driven shaft carrying one or more rotary edge-setting tools, a vibrating edge-setting tool adapted for operating on a sole edge close to the heel breast is provided immediately adjacent to the rotary tool or tools and mounted on their shaft. The vibrating tool has mutually inclined surfaces for polishing respectively a straight and a curved sole edge, which surfaces are separated by a guide lip. A main shaft 14 is driven by a motor 16, and is connected, e.g. by chain gearing, with a shaft 18 on which is mounted a rotary fore-part burnishing tool 20 and a rotary shank burnishing tool 22. These tools are heated by an electric resistance unit within the shaft 18, supplied with current by collector rings in known manner. The shaft 18 has an eccentric portion 30, Fig. 2, engaging a bearing 48 in a block 46 working in a slot in an arm 36 pivoted on a pin 34 and provided at its outer end with a stud 38 and retaining spring 40, both of usual construction, for holding a vibratory burnisher 42 on the arm. This burnisher is formed with a surface 58 to operate on the flat sole edge on the outer side of the shank of the shoe, and an inclined curved surface 60 for the corresponding part on the inside of the shoe. Lips 62, 66 act as work guides. Preferably, another rotary shaft 70 carries a heel burnishing pad 74 and a beading tool 76 heated frictionally by a rubbing clamp 78. A finishing brush 80 mav be mounted on the end of the shaft 14.
Patent GB-1185384-A (GB)
Title: Wave Form Generators.
IPC: G06G7/26
Filed: 1967-05-15
Abstract: 1,185,384. Pulse generators. FUJITSU Ltd. 15 May, 1967 [14 May, 1966], No. 22504/67. Heading H3T. [Also in Division G4] A waveform generator, comprises first and second constant current circuits III, IV, a first generating circuit I for applying to the first constant current circuit III an exponentially decreasing voltage, a second generating circuit II for applying to the second constant current circuit IV an exponentially increasing voltage and switch means 1, 2, 4 for initiating simultaneous operation of the generating circuits I, II and a charge storage means 15 connected to a common output 17 of the constant current circuits so as to receive simultaneous charging and discharging currents from the constant current circuits III, IV to produce an output having a continuously curved peak. With the switches 2 and 4 closed and 1 open the output at 17 is clamped by diode 14 to E7. When switches 2 and 4 are opened and 1 is closed simultaneously and with an input voltage applied to E1 the voltages across the resistor 6 and capacitor 7 fall and rise exponentially. This causes the charging and discharging currents supplied by the transistors 8, 10 and 11, 13 to fall and rise respectively so that the output voltage across capacitor 15 depends on the resulting current. If this resulting current is a charging current the diode 14 will become non-conductive and the output across 15 will rise positively and then fall back again to the diode clamping level E1 when the capacitors 3 and 7 have become fully charged. The rising and falling portions of the output waveform may be varied by varying the voltage input at E1 or by opening switch 4 after the switches 1 and 2 have been operated and by varying resistors 9 and 12. Positive going pulses having an increased pulse width with increased voltage applied to E1 are produced (Fig. 3, not shown). Alternatively the circuit may produce negative going outputs by removing the diode 14.
Patent GB-739706-A (GB)
Title: Apparatus for controlling the pressure and flow of fluid from a container
IPC: B63C11/22
Filed: 1951-09-27
Abstract: 739,706. Fluid-actuated valves. DUNLOP RUBBER CO., Ltd., TREVASKIS, H. W., and DUNLOP RIM & WHEEL CO., Ltd. Sept. 4, 1952 [Sept. 27, 1951], No. 22549/51. Class 135. A two-stage pressure reducing valve, e.g. for under-water breathing apparatus, comprises a cradle 12 carrying a first stage valve 9 controlling an inlet nozzle 6 and loaded to open, e.g. by a spring 17 within a bellows 15 sealed to a cradle flange 14 slidable in the first stage outlet pressure chamber 3 and exposed to the pressure therein, and a second stage valve 34 loaded to open by a spring 29 acting through a lower flange 26 and valve stem 39, the flange being connected to an upper flange 25, 25a, carrying a diaphragm 27 sealed to the valve casing and exposed on its underside to the pressure in a second-stage outlet pressure chamber 2 leading via an annular groove 41, and passage 42 to the outlet connection 44, and on its upper side to water pressure acting through casing holes 22. A spring 38 is also compressed between the cradle and the second stage valve.
Patent GB-384705-A (GB)
Title: Improvements in or relating to the manufacture of sliding clasp fasteners
IPC: A44B19/46
Filed: 1931-08-10
Abstract: 384,705. Feeding clasp fasteners. LIGHTNING FASTENERS, Ltd., Kynoch Works, Witton, Birmingham.-(Hookless Fastener Co. ; Meadville, Pennsylvania, U.S.A.) Aug. 10, 1931, No. 22576. [Class 117.] A method of making stringers for sliding- clasp fasteners comprises the manipulation of a loose collection of fastener elements to arrange them in sequence and with the same orientation and then to feed them singly to the edge of a discontinuously moving strip or tape and clamping them while the tape is stationary. The metallic elements are put in a container 97, Fig. 21, which may be cylindrical or may have a conical wall 103 ; it is driven by a pulley 99 and cable 100. The plates 104 pick up the elements and shower them over the guide-plate 105 with baffles 108, 109, 111 ; the plate 109 is cut to provide a gateway 110 through which the elements pass to the feeding shoot. Wing plates 112 prevent spilling from the drum, and the edges along which the elements slide are made very thin and are polislied to minimize friction. Notches and skimmers are provided along the shoot to remove elements wrongly orientated. The feeding shoot 40 has a base 120 and cover-plates 121, Fig. 19, forming a slot in which the heads of the metallic elements travel. Part 129 of the shoot is horizontal and contains a block 130 with an aperture 131, through which all elements proceeding head first will drop out of the shoot. The horizontal portion of the shoot prevents the aggregate weight of the elements from acting at the discharge end of the shoot. The forward movement is assisted by a toothed wheel rotating in the slot, and the feeding apparatus as a whole is agitated by the engagement of a ratchet wheel with a roller. At the discharge end of the shoot a plunger 47, Fig. 17, in a guide block 46 ensures that each element 41 straddles the stringer 42 while being clamped thereto. Mechanism is provided for interrupting the feed of elements 41 while the stringer is fed forward, so that gaps are provided between groups of elements on the stringer.
Patent GB-404747-A (GB)
Title: A machine for rolling and for back-rolling paper strips and the like
IPC: B65H23/34
Filed: 1932-08-12
Abstract: 404,747. Feeding webs. WHITEHEAD, L. J., The White House, Lower Green, Tettenhall, Staffordshire. Aug. 12, 1932, No. 22590. [Class 100 (i).] A machine for backrolling paper strips &c. includes a stationary shaft for each roll of paper to be back-rolled and a corresponding rotary driven shaft around which the paper is back-rolled, the shafts being arranged vertically and at right angles to a stationary flat surface on which one end edge of the paper strip rests so that the roll is wound straight. One or more rolls of paper may be back-rolled at the same time, the stationary shafts 20 and driven shafts 5 being supported on the frame 1 and the shafts 5 driven from a main shaft 9 through gears 12, 13 and a chain 14. The upper end of each of the shafts 5 is supported by a short shaft 16 journalled in ball or roller bearing 17 mounted in a support 18 which is hinged to the upper end of the machine frame. The member 16 has a conical end which is knurled to engage in a suitable conical recess in the upper end of the shaft 5, whereby this upper end will run in a roller bearing which is readily removable when it is desired to release the roll x. The upper end of each stationary shaft 20 is pointed to engage a conical recess 21 in the underside of the member 18. The free end of the paper is engaged with the shaft 5 by means of a strip spring 23 which is fixed at one end to a collar 24 on the shaft and is located in a recess in the bearing member 2, the upper end of the spring being left free to press against the roller 5 and clip the paper therebetween. A flat sheet metal plate 25 rests on the top face of the support 2 for the shafts and forms a support for the paper rolls when in position ; by tilting the plate, the end of the roll is raised and the finished roll may thus be removed without handling the surface of the paper. This plate also serves as a guide for the lower edge of the paper to ensure that this is properly rolled.
Patent GB-835419-A (GB)
Title: Improvements in and relating to steam condenser installations for steam turbine power plant
IPC: F01K9/00
Filed: 1956-07-20
Abstract: 835,419. Surface condensers. HICK, HARGREAVES & CO. Ltd., and ARROWSMITH, R. M. June 4, 1957 [July 20, 1956], No. 22628/56. Class 64(3) A steam condenser installation for steam power plant comprises a reserve condenser 4 having its water cooling connection 9, 10 in parallel with those of one or more steam turbine condensers 1, 2, 3 and arranged to receive surplus steam over and above that required for operation of the turbine or turbines, the reserve condenser being contructed or proportioned and the cooling water discharged therefrom being mixed in the discharge line 8 with the cooling water discharged from the turbine condenser or condensers, such that under surplus steam conditions in which cooling water flows through all the condensers including the reserve condenser, the temperature of the discharged cooling water does not exceed a predetermined maximum. Under normal conditions the reserve condenser 4 is maintained fully primed by providing a small continuous flow of cooling water therethrough by way of a constantly open by-pass connection which includes a valve 13. Under surplus steam conditions a valve 11 is opened either automatically or otherwise to bring the reserve condenser into operation.
Patent GB-1091234-A (GB)
Title: Process for the preparation of polyesters of terephthalic acid and glycols
Inventor: CONIX ANDRE JAN
IPC: C08G63/82
Filed: 1966-05-20
Abstract: In the manufacture of polyesters by polycondensing a glycol terephthalate, the polycondensation catalyst used is a preformed solution made in a separate step by heating germanium dioxide and a glycol at 210 DEG  to 300 DEG  C. and under a pressure of 1.5 to 15 atmospheres absolute.  Specified glycols are ethylene glycol and 1:4-di-(hydroxymethyl)-cyclohexane. The glycol terephthalate monomer is preferably made by a transesterification reaction using as a catalyst a compound of an alkali metal, an alkaline earth metal, Zn, Cd, Mn, Pr, Ce or La.  Examples describe the manufacture of polyethylene terephthalate from dimethyl terephthalate and ethylene glycol.
Patent GB-316148-A (GB)
Title: An improved system for transmitting alarm signals
IPC: H04M11/04
Filed: 1928-07-04
Abstract: 316,148. Siemens & Halske Akt.- Ges. Dec. 20, 1927, [Convention date]. Divided on 302,678. Drawings to Specification. Fire, police, and like alarm systems and apparatus.-Relates to a system in which the occurrence of a fire or burglary at a telephone subscriber's station causes a distinctive signal, e.g. fast or slow impulses, to be transmitted over the subscriber's line to extend the line over callfinders to the fire or police station to which the subscriber's number in the form of a three-digit code is then automatically transmitted to operate a lamp indicator. The code signal is transmitted by a step-by-step switch which is marked by the call-finders in a manner characteristic of the calling station. The number is retransmitted from the indicator position to a distant point or a recording apparatus. The systems described are identical with that described in Specification 302,678.
Patent GB-487555-A (GB)
Title: Improvements in or relating to protective strip for felt base floor coverings
IPC: D06N7/00
Filed: 1937-08-19
Abstract: 487,555. Floor coverings; packing. MANNINGTON MILLS, Inc. Aug. 19, 1937, No. 22752. Convention date, March 30. [Class 142 (iv)] [Also in Group XVII] Floor rugs &c. 1 comprising rectangular sheets of asphalt-impregnated felt are provided with one or two end protective edge strips 5 of tough material such as cloth to prevent tearing of the edge 4 of the rug when it is being unpacked from the paper-covered or other roll, in which it is packed for storage and transport. The strips may be permanently secured by waterproof adhesive to the rug, and may be coated or impregnated with rubber so that the strips serve to prevent the rug from skidding &c. when it is laid on the floor. The rug may be rolled up on itself or on a core tube 8 and be covered with wrapping paper 10, inserted in between the last convolutions and furnished at its free end with an adhesive securing strip 15. The paper is folded around the edges. When unpacking by tearing away the strip 15, if the tear should extend spirally until it reaches the edge of the enclosed rug, the strip 5 prevents tearing of the edge 4 of the rug, which otherwise might occur. The rug may be packed in two aligned sections of a tube, the abutting end sections of which are encircled and overlapped by adhesive paper, and the function of the strip in preventing tearing of the rug thus packed, when it is unpacked, is described.
Patent GB-692443-A (GB)
Title: Electronic timing device
Inventor: DIGHTON DENIS THOMAS RICHARD
IPC: H03K17/288
Filed: 1950-09-15
Abstract: 692,443. Valve relay circuits. KODAK, Ltd. Sept. 14, 1951 [Sept. 15, 1950], No. 22769/50. Class 40 (vi). In a timer, a normally discharged capacitor C is charged over a variable resistor R to cause a valve T1 to conduct and cut off a valve T2 so that relay C1 releases. The switch S is normally in position 1, causing the capacitor C to be discharged through resistor R3, the grid of valve T1 being returned to the H.T. supply to cause the valve to conduct and hold valve T2 cut-off and relay C1 released. Upon operating the switch, valve T1 cuts off and T2 conducts to operate relay C1 which releases at the end of the timed period. By arranging equal negative and positive supply voltages the timing is substantially independent of supply fluctuations. The supply may be derived from A.C. mains using two half-wave rectifiers.
Patent GB-220820-A (GB)
Title: Improvements in and relating to lamps for illuminating motor car dashboards
IPC: B60Q3/02
Filed: 1923-09-11
Abstract: 220,820. Caulfield, R. W. St. G. Sept. 11, 1923. Lamps for concentrating light on a definite spot near the lamp.- Means for illuminating the dashboard of a motor-vehicle, comprises an electric lamp adapted to be secured to the gear or brake lever in place of the usual operating-knob. The lamp comprises a globular casing 4 secured by correspondingly-shaped nuts 3, 19 on the screwed end of the gear lever 1, an insulating bush 5 being secured within the casing by a screw 6. The bush 5 carries a reflector 7 into which the lamp bulb 14 screws, and is provided with a spring contact 8 adapted to bear against the centre contact of the bulb, the contact 8 and reflector 7 being connected to terminals 10, 12 for the supply leads 9. The casing is provided with a detachable portion 14 for permitting insertion of the bulb &c., a light-emitting aperture 17, and, if desired, a lens being provided in this portion. The lamp is adjusted so as to project a beam of light on to the dashboard when the lever is in the position in which top gear is engaged, the hole 18 through which the screwed portion of the gear lever passes being made sufficiently large for this purpose.
Patent GB-403910-A (GB)
Title: Improvements in and relating to means for attaching cams to shafts
IPC: F16H53/04
Filed: 1933-08-15
Abstract: 403,910. Securing cams on shafts. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and BOURNE, S. N., Birdingbury, Rugby. Aug. 15, 1933, No. 22802. [Class 80 (ii).] A split cam ring B for operating switches &c. is clamped around a worm wheel C secured to a shaft S by means of a clamping screw E and is adjusted angularly with respect to the wheel C by means of a screw D engaging the teeth of the wheel.
Patent GB-1013273-A (GB)
Title: Control circuits employing semi-conductor controlled rectifiers
IPC: H02M1/08
Filed: 1962-06-14
Abstract: 1,013,273. Electric converting systems. WESTERN ELECTRIC CO. Inc. June 14, 1962 [Dec. 22, 1961], No. 22843/62. Heading H2F. [Also in Division H3] A phase controlled rectifier system uses a circuit simulating a thyratron and comprising a semi-conductor rectifier 10 controlled by a transistor 12 connected between its anode and gate, the magnitude of the bias on the electrode connected to the anode (as shown, the collector) being controlled by a voltage limiter, for example a Zener diode 13. An A.C. supply is connected between the anode and cathode and an A.C. control voltage is applied with phase displacement to the base of the transistor so that when the base voltage is sufficient the S.C.R. " fires ". The Zener diode limits the collector voltage and the S.C.R. extinguishes when the A.C. supply reverses. Resistors 23 and 30 cause the reverse voltage to be shaped between the S.C.R. and a diode 22, rectifier 31 blocks current through resistor 11 and diode 14 limits the reverse voltage on the base. In Fig. 2 (not shown) diode 31 is omitted so that resistor 11 serves the purpose of resistor 30 and the Zener diode conducting in the reverse direction to reduce the reverse collector voltage of the transistor. In addition the base protecting diode 14 is connected in series with the input. Fig. 4 shows the phase controlled rectifier system in which units 13<SP>1</SP>, 14<SP>1</SP> are of the type described. At a controlled point in one halfcycle unit 13<SP>1</SP> conducts and continues conducting until the end of the half-cycle. Current in the load is maintained, until unit 14<SP>1</SP> is rendered conductive, by the collapse of the field in the choke 51, the current path being completed through a rectifier 50 which also serves to limit the reserve voltage and voltage surge which would occur. Specification 1,013,272 is referred to.
Patent GB-1237663-A (GB)
Title: Laser gyrometer
IPC: G01C19/66
Filed: 1969-05-05
Abstract: 1,237,663. Lasers. COMPAGNIE GENERALE D'ELECTRICITE. 5 May, 1969 [6 May, 1968], No. 22845/69. Heading H1C. [Also in Divisions H3-H5] Specification describes a ring laser gyrometer, whereas instead of using the simple relation: between the angular speed # imparted to the gyrometer and the frequency difference #f, between the contrarotating light beams 4(f 1 ) and 5(f 2 ), Fig. 1, K being a constant, the following relation is used, involving the intensities I 1  and I 2  of the two beams: A, B, C, D and K being constants. The second term may be ignored and the remainder simplified: Thus photo detectors 11 and 10 behind partly transparent mirror 3 produce signals respectively representing the intensities I 1  and I 2  of the beams 4 and 5 and beam combining mirrors 6, 7 and 8 and non-linear photo detector 9 produce a signal having the difference frequency #f of the two beams. The three detector outputs are fed to a computer 12, shown in detail in Fig. 2. The intensity signals I 1  and I 2  are summed at 14 and the sum signal fed to the control input of a variable frequency multiplier 15. The detector signal at frequency #f is frequency multiplied in means 16 and 19 by respective factors # and α. The resultant signal at frequency #.#f is fed to 15 which thereby produces a signal at frequency #.#f.(I 1 I+2). Said signal and the signal at frequency α#f from means 19 are fed to respective cycle counters 18 and 17, which, by counting the number of cycles occurring in equal predetermined time intervals -established by clock 20, produce signals proportional to -the respective frequencies. Said signals are subtracted in means 21 to produce an output signal proportional to #F, and to #.
Patent GB-337039-A (GB)
Title: Improvements in or relating to the steering of mechanically propelled endless track vehicles
IPC: B62D55/065
Filed: 1929-07-25
Abstract: 337,039. Vickers-Armstrongs, Ltd., and Carden, J. V. July 25, 1929. Endless-track vehicles having two or more tracks on each side of the vehicle are steered by braking one or other of the front track units. In the construction shown the vehicle is carried on front tracks B<2> and rear tracks C<2>, the front tracks being pivoted on an axle D<1> which can rock about a central horizontal longitudinal pivot and also about a central vertical axis or turntable. Ackerman steering may be employed instead of a centrally-pivoted axle.
Patent GB-927419-A (GB)
Title: A process for the production of a flame-resistant solid resin
IPC: C07C17/10
Filed: 1961-06-26
Abstract: A flame-resistant, glass-clear solid resin is produced by halogenating cyclododecane in the absence of a catalyst in a solvent, e.g. carbon tetrachloride until the halogen content is about 6 to 15 halogen atoms per molecule of the cyclododecane, preferably 10 halogen atoms per molecule of cyclododecane.  The halogen is preferably chlorine and the process carried out at a temperature between 30 and 80 DEG C.  In an example cyclododecane dissolved in carbon tetrachloride is heated under reflux whilst chlorine is fed into the mixture for 30 hours after which chlorine and hydrogen chloride are blown out from the hot mixture by feeding in nitrogen and the carbon tetrachloride is distilled off. The residue is a pale yellow viscous resin having chlorine content 68.2% corresponding to 9.6 chlorine atoms per molecule.
Patent GB-208199-A (GB)
Title: Tea infuser and economiser
IPC: A47J31/20
Filed: 1923-05-24
Abstract: 208,199. Scott, A. J. May 24, 1923. Infusers. - In a tea infuser of the type comprising a perforated receptacle 1 in which an unperforated piston or plunger 2 is operated by means of a rod 3 passing through a handle 4 attached to the receptacle the hinged lid 5, by means of which the tea leaves are introduced, is placed at one end of the receptacle, opposite to the plunger 2. Windows covered with wire gauze 8 may be formed in the receptacle, and a hook 7 may be attached to the rod 3 for suspending the infuser in a tea urn &c. Catches may be provided to hold the plunger 2 in any desired position in the receptacle.