baber/WOPTO huggingface dataset:
Patent GB-330741-A (GB)
Title: Improvements in brackets
IPC: A47B96/06
Filed: 1929-05-21
Abstract: 330,741. Santiago, M. C. May 21, 1929. Brackets.-A shelf &c. supporting bracket consists of a length of bar 1 of hollow rectangular &c. section from which short portions of the upper and lower faces are cut away at one end to form parallel lugs 9, 10 to embrace partially the standard 8, to which the bracket is secured by a pin 11. The lugs 9, 10 may be bent at right-angles for attachment to a flat surface. The bar may be cut at an inclination to its longitudinal axis as shown at 2 to enable two brackets to be cut from a single bar without waste. A levelling-screw and an upturned end 13 with or without a fixing-screw to grip the shelf, may be provided.
Patent GB-1384630-A (GB)
Title: Processing composition for a photosensitive lithographic printing  material
IPC: B41N3/08
Filed: 1972-04-05
Abstract: 1384630 Developing pre-sensitized printing plates FUJI PHOTO FILM CO Ltd 5 April 1972 [5 April 1971] 15736/72 Heading G2C A two-phase developer for processing an imagewise exposed photo-sensitive material comprising a support coated with a layer of shellac and a diazonium salt or condensate thereof or a quinone diazide comprising an organic solvent which dissolves or swells the unexposed areas, a hydro phobic material to improve the hydrophobic property of the exposed areas and which comprises a saturated or unsaturated aliphatic carboxylic acid having more than 8 C atoms and a hydrophilic colloid to protect the hydrophilic property of the unexposed areas. Specified organic solvents are alcohols, esters, ketones, dimethyl formamide and glycol alkyl ethers and esters. Fatty acids are specified hydrophobic materials whilst cellulose ethers, gum arabic, starch and sodium alginate are specified hydrophilic colloids. The developer may also contain water, surface-active agents or citric or phosphoric acid. The photo-sensitive material may be as disclosed in Specification 1350521 and may also contain phenolic or epoxy resins, urea-or xylene-formaldehyde resins, acrylic resins, polyamides or vinyl polymers. The invention also relates to processing the above material with a two-phase developer as specified above except that any hydrophobic material (e.g. dioetyl phthalate) may be used.
Patent GB-611018-A (GB)
Title: Improved means for controlling a reversible supply of electricity to a load such as an electric motor
IPC: H02P7/288
Filed: 1943-09-27
Abstract: 611,018. Control systems for consumption apparatus; automatic control systems. SMITH & SONS (ENGLAND), Ltd., S., (formerly SMITH & SONS (MOTOR ACCESSORIES), Ltd., S.), and MEREDITH, F. W. Sept. 27, 1943, No. 15849. [Class 38 (iv)] [Also in Group XXXVII] Thermionic control; attitude control.-A reversible supply to a load, which may be the field or armature M of an electric motor, is controlled by means of a Wheatstone bridge connection of four thermionic valves 14 ... 17 of which the grid potential of one or more is varied to unbalance the bridge. The system may be applied to the restoration from displacement of a rotary platform as in Specification 611,016. The invention is described as applied in connection with a device described in Specification 611,005, [Group XXXVIII], supplying an A.C. signal in accordance with the rate of turn and including a carrier voltage of constant amplitude to distinguish the sense of the turn. A.C. voltages are applied to terminals 33, 34 respectively in accordance with the sum and difference of the signal and carrier voltages. Screened grid valves 3, 4 of high gain have their screens and anodes crossconnected. Their anode potentials are fed back negatively to the grids so that these are held at like potentials and the rectified signal currents are caused to pass through resistances 10, 12 and condensers 11, 13 in the respective grid circuits. The carrier voltages are opposed and their effect neutralized by balancing connections including points 27, 28  one of which is adjustable. The resistances 10, 12 develop potentials proportional to the rate of change of displacement of the platform and the condensers 11, 13 are charged differentially to voltages proportional to the integral of the change in the difference of the signal currents. The resulting changes in anode potentials are applied differentially to the grids of valves 14, 15 to determine the sense and magnitude of the potential applied to the armature M of the motor which has a constant field. The current through anode resistances 21, 24 modifies the grid potentials of valves 16, 17, whereby the motor current is further increased. In the modification in which the load is the field of a motor, the control voltage is applied to those valves the anodes of which are connected to the load so that the current therein is determined by the control voltage; the armature in this case carries a constant current. Specifications 433,373, [Group III], and 611,099, [Group XL (c)], also are referred to.
Patent GB-1134958-A (GB)
Title: Method for forming a package of undrawn copolyamide yarn having an improved unwinding ability
IPC: D01F8/12
Filed: 1967-04-06
Abstract: 1,134,958. Method of improving the unwinding ability of copolyamide yarn. KANEGAFUCHI BOSEKI K.K., and SNIA VISCOSA SOC. NAZIONALE INDUSTRIA APPLICAZIONI VISCOSA S.p.A. 6 April, 1967 [18 April, 1966], No. 15881/67. Heading B5B. A copolyamide filament is coated with a finishing agent consisting essentially of an aqueous emulsion of partially oxidized polyethylene, the coating being applied after melt spinning the filament and before it is taken up on a winding bobbin. The finishing agent may also be applied to a composite filament wherein one component is a oopolyamide and the other is another polyamide. A conventional oiling agent may be mixed into the emulsion of the finishing agent, or may be applied separately. The treatment improves the unwinding ability of a package of copolyamide yarn.
Patent GB-1383826-A (GB)
Title: Electronic two-terminal flasher unit
IPC: H05B39/09
Filed: 1972-04-06
Abstract: 1383826 Vehicle direction indicator flashers PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd 6 April 1972 [9 April 1971] 15916/72 Heading G4Q [Also in Division H3] A two-terminal unit for flashing a lamp comprises a relay having a high-resistance energizing winding and a low-resistance holding winding and a frequency-determining astable multivibrator, the holding winding being in series with contacts of a switch actuable by the relay, this series combination being connected between the terminals in parallel with the series combination of a diode and a capacitor having two supply connections, one end of the energizing winding being connected to the terminal to which the diode is connected, the operation of the multi-vibrator connecting the other end of the energizing winding alternately to the capacitor supply connections.  In an embodiment of a flasher unit (Fig. 1) initial closing of a circuit breaker 6 causes capacitor 15 to charge from battery 5 via lamp 8. Simultaneously, current through a highresistance energizing winding of a relay 1 and a change-over switch 11 causes contacts 3 to close so that the lamp 8 remains lit by current flow through a low-resistance holding winding 2 of the relay in a circuit shown in heavy line. The voltage across winding 9 drops to zero upon closure of contacts 3. Switch 11 is constituted by a pair of transistors (not shown) caused to conduct in alternation by an astable multi-vibrator (not shown). When the switch moves from the condition shown to close on to contact 12, capacitor 15 discharges through winding 9 to produce a field in opposition to that of holding winding 2, whereupon contacts 3 open and the lamp 8 extinguishes. The capacitor 15 then recharges via diode 14 and lamp 8 ready for a further cycle. Thus, repetition frequency is controlled by the multi-vibrator. In a practical embodiment (Fig. 2) two groups of vehicle direction-indicator lamps 8a, 8b and 8c, 8d are shown; switch contacts, equivalent to those labelled 12 and 13 in the previous figure, are provided by opposite type transistors 33 and 17 respectively, while the astable multivibrator circuit comprises transistor 17 and a further transistor 16. A pilot lamp 27 may be provided. Emergency flashing of all lamps is provided for by closure of a switch 24. The relay winding 2 is such that the minimum holding current is smaller than the sum of the currents of the two lamps of a group but greater than the current of one of the two lamps of a group. The resultant operation of the circuit provides an indication of an inoperative lamp. The flasher unit described is thus constructed as a two-terminal device, enabling its direct substitution for conventional "hot-wire" devices without the need for the wiring and direction-indicator switch to be changed.
Patent GB-492991-A (GB)
Title: Improved apparatus for the automatic opening of doors or gates
IPC: E05F13/04
Filed: 1937-06-09
Abstract: 492,991. Door &c. operating-appliances. WARR, B. G. June 9, 1937, No. 15948. [Class 44] In gate &c. opening apparatus of the kind comprising an actuating member 17 adapted to be depressed by a vehicle approaching the gate, and mechanical means operated by 17 tc release the gate fastening means, the mechanical means comprise a lever 15 pivoted in an underground housing 18 and connected at one end to the member 17, while the other end carries a pin 13 which, on depression of 17, lifts the gate bolt 8 out of its socket 12. A detent 23 may hold the bolt in its fastening and release position by engaging the recesses 25, 26. When the bolt is raised, the gates are opened by spring links &c.
Patent GB-749381-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating groups of lamps in sequence
IPC: H05B37/02
Filed: 1953-06-10
Abstract: 749,381. Control systems for electric lamps. GENERAL ELECTRIC CO., Ltd., and WILLIAMS, C. E. Sept. 10, 1954 [June 10, 1953], No. 15999/53. Drawings to Specification. Class 38 (4). A circuit arrangement for controlling the operative state of two or more groups of lamps in a repetitive sequence of states includes a closed chain of electromagnetic relays arranged, when energized in sequence, to operate in sequence contacts which effect the required sequential changes in the operative state of the lamp groups. Each individual relay coil is connected to its source of energization through two pairs of contacts of other relays of the chain and a control switch, one of the contact pairs being opened to de-energize the individual relay coil by operation of the relay following it in the chain and the other contact pair being closed by operation of the preceding relay in the chain'to prepare the individual relay for energization on subsequent closure of the corresponding control switch. The circuit also includes operating means for initially energizing one of the relays to start the operation of chain and for repetitively operating the control switches in sequence to produce a repeated energization of the relays in succession around the chain. To reduce the number of control switches required the energization circuits of at least some non- adjacent relays in the chain may be activated by a single control switch ; thus there may be only two control switches in all, controlling, respectively, the odd and even numbered relays in the chain. The switches may be gas-filled relay valves, or may be mechanically operated switches actuated by an electric motor, preferably a self-reversing one, which may also drive a dimmer for sequential connection to the different lamp groups by the relay chain, the control switches being actuated at, or near, the positions of the dimmer corresponding to maximum and minimum brightness of the lamps. There may be two or more closed chains of relays, preferably with different numbers of relays and activated by a common pair of control switches, controlling two or more sets of lamp groups. The operating means for initially energizing one relay to start operation of the chain may be a manually-operated pushbutton; alternatively, the energizing circuit of that relay may include normally closed contacts of all the other relays of the chain, so that starting is automatic.
Patent GB-128940-A (GB)
Title: Improvements in Water-cooled Cylinders for Internal Combustion Engines.
IPC: F02F1/16
Filed: 1919-06-25
Abstract: 128,940. Franco Tosi Soc. Anon., (Assignees of Rosa, G.). July 19, 1915, [Convention date]. Cylinders, cooling.-The water is circulated through the cylinder jacket in narrow streams of high velocity. This is effected by forming narrow channels on or in the cylinder walls either helical, as shown in Fig. 1, or sinuous, as shown in Fig. 2.
Patent GB-350703-A (GB)
Title: An improved instrument for the comparison of the intensity of light rays
IPC: G01J1/36
Filed: 1930-05-24
Abstract: 350,703. Photometric apparatus. WHALEN, F. C., 41, Bernard Street, and RADIOVISOR PARENT, Ltd., 26, Coventry Street, both in London. May 24, 1930, No. 16049. [Class 97 (i).] In a comparison photometer two beams of light are caused by means of a rotary &c. shutter to fall alternately upon a light-sensitive cell, the cell and an indicating &c. instrument being fed from a source of A.C. supply, and the shutter being in synchronism and in suitable phase with the alternations of the current. The beams 16, 17 pass alternately through an aperture 14 in the shutter 13 and are directed by mirrors 18, 19 on to the cell 1 arranged in series with a galvanometer &c. 4. The circuit is supplied with current from an A.C. generator 12 of the inductor type which is driven by a motor 11, the shutter being mounted on the shaft 15 which is common to the motor and generator. To enable a direct-current measuring instrument of high sensitivity to be used, a condenser 22 and choke 23 are included in the measuring circuit, the choke having high impedance and low ohmic resistance. Specification 298,094, [Class 97 (i), Optical systems &c.], is referred to.
Patent GB-161730-A (GB)
Abstract: 161,730. Childs, C. V. Jan. 27, 1920. Jet nozzles; nozzles with cut-off devices.-An attachment to be fitted to a syringe or bicycle pump in order to adapt it as a spray-producer comprises a cylinder d closed at one end and having a small spraying-opening b in the side, the cylinder being mounted in a chamber c screwed in a cap f provided with a screw g to fit the pump or syringe. The chamber is provided with one or more openings d closed by means of strips e of indiarubber &c., which act as inlet valves for filling the syringe. An adapter more particularly for pneumatic pumps held in position by the foot consists of a three-way connection, one way having a free inlet and outlet connection to the cylinder of a pump and being tapped to a standard thread to engage the pump, another, preferably fitted with a non-return valve, being connected to a tube fitted with a spraying-nozzle, and the third being connected with a tube fitted at its other end with a non-return inlet valve, which remains under the surface of the liquid while the pump is being worked.
Patent GB-1004157-A (GB)
Title: Nodular graphite cast iron containing calcium, rare earth metals and magnesium and amethod for producing it
IPC: C21C1/10
Filed: 1962-04-27
Abstract: A nodular graphite cast iron contains .Rare earth metals.0.01-0.12% .Mg.0.006-0.04% .Ca.0.002-0.025% in which R.E.=0.9-4 (Mg).  The alloys are made by adding to the molten cast iron an addition agent consisting of R.E. fluoride, MgF3 and Ca-Si with or without small additions of CaF2, MgSi, FeSi, CaC2.  The fluorides may be partially substituted by CaF2, NaF or KF and Ca-Si may be partially substituted by Mg-Si, Fe-Si, R.E.-Mg-Si or CaC2. The cast iron may be unalloyed or may contain one or more of Cu, Ni, Cr and Mo.  The chlorides of R.E. and Mg may also be used instead of the fluorides.
Patent GB-624243-A (GB)
Title: Improvements in or relating to lifting devices
IPC: A63J1/02
Filed: 1947-06-19
Abstract: 624,243. Mobile lifting devices. EALING STUDIOS Ltd., and SPELLER, J. C. June 19, 1947, No. 16214. [Class 108 (i)] Lifting apparatus includes in combination a mobile framework carrying a substantially vertical lifting bar 12 mounted at the front of the framework for substantially vertical movement therein, said bar carrying hooks for engagement under projections on the article to be lifted (e.g. a film set) a counterweight 13 for lifting said bar through a lever 9 and toggle 20, 21 for raising said counterweight when required by lifting handle 23. The frame comprises angle-bar base 1 of triangular form to which are attached angle members 3 and 4 bent and fixed as shown in Fig. 1, strengthening members 10 and strengthening plates 7 which carry the pivot pin 8 for lever 9. The lifting bar 12 is of.channel section pivoted at its lower end on a pin carrying a roller 17 and engaging a slot in said bar. An arm 25 and removable pin 26 retain the mechanism in lowered position whilst a removable pin 29 inserted through holes in members 3 and 4 limits travel of lever 9, thus determining height of lift. The article lifted is steadied by abutments 31 and the whole may be moved on castors 11.
Patent GB-565058-A (GB)
Title: An improved resilient unit for operation in tension
IPC: F16F9/06
Filed: 1942-11-17
Abstract: 565,058. Shock-absorbers. DOWTY EQUIPMENT, Ltd., and UNDERWOOD, C. J. Nov. 17, 1942, No. 16270. [Class 108 (iii)] A shock-absorber or like resilient device comprises a plunger 4 operating in a chamber 1 divided into isolated compartments 9, 10 by a fixed partition 7, compartment 9 containing resilient means, for example, a spring and/or compressed air or gas, urging the plunger into the chamber, while compartment 10 is filled with damping fluid and houses a damping piston 15 which is integral with or secured to the plunger 4 and which restricts relative movement of the plunger and chamber during the recoil movement due to expansion of the resilient means. As shown, a second piston 14 is mounted at the inner end of the hollow plunger 4 so that extension of the shockabsorber compresses the air &c. in compartment 9 while in compartment 10 fluid flows substantially freely through ports 16 in the piston 15. During recoil, ports 16 are closed by a valve 18 movable axially between the piston 15 and a stop ring 20 and having ports 19 which restrict flow of fluid and damp the movement of the piston. Air or gas is introduced into the compartment 9 through a valve 12 and port 13 in the plunger 4.
Patent GB-737388-A (GB)
Title: Improvements in and relating to the non-destructive testing of solid bodies
Inventor: WILSON ROBERT
IPC: G01N29/28
Filed: 1952-06-27
Abstract: 737,388. Ultra-sonic-wave couplings. KELVIN & HUGHES, Ltd. Sept. 28, 1953 [June 27, 1952], No. 16313/52. Class 40 (4). A half-wave layer of an acoustic coupling medium is mounted on the end of a probe 13 by means of a threaded ring or nut 10 counterbored to a depth of a quarter-wavelength. The counterbore is fitted with a layer 16 of rubberized nylon. The nylon layer and the annular indicating surface 15 are then sprayed with rubber paint 17 to a depth of a quarterwavelength. When the top quarter-wavelength thickness has been worn off the halfwave layer, the surface 15 is exposed and indicates the extent of the wear. The use of rubberized nylon and of rubber paint to form a coupling medium is described in Specification 708,253.
Patent GB-456912-A (GB)
Title: Improvements in wallpaper pasting machines
IPC: B44C7/02
Filed: 1935-06-05
Abstract: 456,912. Paper - pasting machines. THOMAS, A., 7, Hartington Road, St. Margarets, Twickenham, Middlesex. June 5, 1935, No. 16338. [Class 140] Comprises improvements in the machine for pasting wallpaper described in Specification 406,798. To avoid transfer of paste to the patterned side of the paper the pressure roller M, Fig. 1, is tapered at the ends so that the contacting portion is less than the width of the paper T ; or the roller may be in sections, the over-all length of the sections being less than the width of the paper. Slots S, Fig. 3, shaped as shown, are provided at the sides of the machine to receive the ends of the roller spindle so that it may be lifted out of contact with the paste roller R when idle. The paper roll spindle is mounted in tubes D, Fig. 4, carrying flanges E<1> engaging the paper roll T and adjustable by nuts F.
Patent GB-150857-A (GB)
Title: Improvements in electric fittings known as double-ended lamp holders
IPC: H01R33/94
Filed: 1919-06-30
Abstract: 150,857. Efandem Co., and Owen, W. June 30, 1919. Two-part couplings.- A double-ended fitting to receive an electric lamp and a plug coupling comprises a pair of contact sleeves having flanges at the middle, by which they are held in a longitudinally or transversely divided insulator, the parts of which are held together by a metal ferrule. In the fitting shown, each sleeve is in two parts separated by an abutment b<3>, each part having a flange b<1>. The insulator is divided longitudinally, each half having recesses to receive the sleeves and their flanges. The plungers C are pressed by independent springs, and have flanges by which they are retained by flanges on the sleeves. The casing a may be secured to one half of the insulator by a screw, and be clamped to a support by screwed rings a<1>.
Patent GB-1401170-A (GB)
Title: Countersink tools for spotfacing surfaces on a workpiece
IPC: B23B51/10
Filed: 1974-04-11
Abstract: 1401170 Countersinking ZAHNRADFABRIK FRIEDRICHSHAFEN AG 11 April 1974 16397/74 Heading B3C A tool comprises an elongate carrier 35 and a countersink 30 having a circular receiving bore 31 for carrier and two non-circular cavities 33 adjoining bore 31 and provided with axially extending driving surfaces 32 for transmitting torque from the carrier to the countersink, the surfaces being at right-angles to the forces to be transmitted, the carrier has a cylindrical portion 42 which has two radial projections 34 each of which has a coacting surface 37 which engages surfaces 32 when the countersink and the carrier are in an operative position. Axial loads are produced by engagement of bottom surfaces 38 of the cavities and the back surfaces 39 of the projections. Lateral steps 36 of bore 31 allow the countersink to be pushed on to the carrier before it is rotated so that surfaces 32 and 37 are engaged.
Patent GB-120606-A (GB)
Title: Improvements in and relating to Helmets or Head Shields.
Inventor: BRODIE JOHN LEOPOLD
IPC: A42B3/12
Filed: 1917-11-09
Abstract: 120,606. Brodie, J. L. Nov. 9, 1917. Helmets.-A metal helmet of the kind described in Specification 11803/15 is provided with means for adapting it to heads of any size and shape, for affording additional protection for the frontal and parietal bones of the wearer's head, and for increasing the distance between the fore part of the helmet and the wearer's face. The means consist of an adjustable ancbor-shaped piece of manganese steel placed within the helmet, the shank portion a of which extends from the top of the helmet, and passes over the centre of the skull, while the side portions or flukes b, c curve over the front of the skull and cover the sutures between the parietal and temporal bones. The ends of the shank and of the flukes are provided with holes or slots through which bifurcated rivets, bolts, nuts, or the like pass to secure the liner to the crown and to the sides of the helmet respectively, the same rivets &c. also securing the lining or chin strap at the top, and the chinstrap buckles and a visor at the sides. Additional resilient buffers may be arranged between the liner and the outer shell. The. visor used is described in Specification 120,607.