baber/WOPTO huggingface dataset:
Patent GB-403166-A (GB)
Title: Means for holding and collecting omnibus and like tickets
IPC: B61D41/02
Filed: 1932-07-26
Abstract: 403,166. Checking fares &c. MACKENZIE, J., Middleton Dene, Boreham Wood, Hertfordshire. July 26, 1932, No. 21083. [Class 106 (iii).] A thin, flat box a for collecting tickets is provided with a slot or guide at the top thereof, and at the lower end of the slot is a spring-influenced means to support a ticket r in a vertical plane. After the ticket has been inspected, the spring - influenced means is released by a push-button, &c. p and the ticket falls into the box. The box is adapted to be secured to the back of an omnibus seat, &c. and it is of sheet metal divided by a vertical partition into two similar compartments. A slotted frame c is mounted in the top of the box, and the ticket supporting means comprises a pivoted jaw n, Fig. 3, pressed towards a fixed jaw k by a spring o, or a fixed guide q, Fig. 6, the bottom of which is normally closed by a pivoted bent arm t kept in position by a spring o. The ticket slots should not be wide enough to allow matches to be inserted. For gaining access to the interior of the box, the bottom is hinged and its free edge is formed with a spring finger to engage a similar finger on the adjacent side, or a hinged door is provided in the front of the box, this door being held closed by a spring influenced pin which engages an apertured lug on the door. The box may be combined with a smoker's tray and the surfaces of the box may bear advertising matter. According to the Provisional Specification, the device comprises a box at the top of which is a spring clip consisting of (i) a horizontal fixed jaw and a horizontal pivoted jaw which latter can be retracted by an external lever or knob at the side of the box, or (ii) a pair of vertical jaws pressed together by an arcuate spring, the outer ends of the jaws projecting through openings in the box.
Patent GB-1464339-A (GB)
Title: Dye lasers
IPC: H01S3/20
Filed: 1975-05-19
Abstract: 1464339 Lasers INTERNATIONAL BUSINESS MACHINES CORP 19 May 1975 [17 Sept 1974] 21128/75 Heading H1C [Also in Division C2] An optically pumped laser uses an acidic pyridine dye active medium formed by the concentration in a non-interfering solvent such as an HC1 solution or a hydroxylic solvent of a dye having the general formula where R is any alkyl group having from 1 to 6 carbon atoms or a cyclohexyl group, and R 1 , R 2  are each chosen from H, CH 3 , C 2 H 5 , F or OCH 3 . Examples of R are CH 3 , C 2 H 5 , C 3 H 7 , C 4 H 9 , C 5 H 11 , C 8 H 13  and cyclo-C 6 H 11 . The active medium emits in the general range of 4100 to 4700 Š and may be contained within the laser resonator by a quartz cell, pumping being effected by 3371 Š radiation from a nitrogen laser. An example of a suitable dye is 2,6-dicyclohexyl-4-(pethoxyphenyl) pyridine which is synthesized by initially dissolving p-ethoxybenzaldehyde and acetophenone in ethanol and adding to a 10% NaOH solution. After prolonged stirring a 4- ethoxychalcone crystallized solid is obtained. The crystals are added to a hot mixture of ammonium carbonate and formic acid which after further heating and then cooling is mixed with an ethanol solution. The solid which separates from the reaction mixture is crystallized from ethanol and dissolved in glacial acetic acid to which Adam's catalyst is added. The compound is then hydrogenated and shaken. The required dye is obtained by subsequent removal of the catalyst and solvent from the reaction mixture. Other suitable starting materials may be used in the foregoing synthesis to give a corresponding 2,4,6-trisubstituted pyrrdine dye, such as pmethoxybenzaldehyde, 3,4,5-trimethoxybenzaldehyde, p - butoxybenzaldehyde, p - hexyloxybenzaldehyde, p - amyloxybenzaldehyde and cyclohexyloxybenzaldehyde. Amongst suitable hot media of the active medium are methanol or ethanol with water.
Patent GB-703197-A (GB)
Title: Improvements in and relating to road traffic control signals
IPC: G08G1/07
Filed: 1951-09-11
Abstract: 703,197. Road signals for controlling traffic FOREST CITY ELECTRIC CO., Ltd., and WILLIAMS, A. Aug. 25, 1952 [Sept. 11, 1951] No. 21341/51. Drawings to Specification. Class 118 (2). A road-traffic control signalling system comprising visual signals displayed at an intersection of traffic lanes is controlled by a four-position multi-contact stepping cam switch operated in continuous sequence by a relay in the anode circuit of a gas-filled triode valve which intermittently charges a timing condenser in its cathode circuit. Said timing condenser is provided with a discharge resistor and is so connected to the triode grid that the latter goes negative when the condenser charges and thereby cuts off the valve current until sufficient discharge has occurred to allow the valve to fire and repeat the cycle. The discharge resistor is automatically selected from one of a bank of adjustable resistors by the cam-switch whereby each period of discharge and hence the period for which the cam-switch remains in each of its four positions in turn can be pre-determined by adjustment of the said resistors. The camswitch further controls a change-over relay which connects vehicle detector pad contacts such that those operated by a vehicle in a lane having right of way momentarily connect a source of potential to the timing condenser thereby adding to its charge and prolonging the right of way period by an amount depending inversely upon the speed of the vehicle, while those contacts operated by a vehicle in a lane not having right of way momentarily connect a resistor in parallel with the discharge resistor and shorten the right of way period, also in accordance with the speed of the vehicle. If the detector pad mechanism fails or is switched out of operation the automatic regular timing continues. To ensure that a right of way period is not unduly prolonged when under vehicle control a second gas-filled triode and timing condenser is connected in parallel with the first but has adjustable discharge resistors of greater value and is not subject to the vehicle control thereby imposing a definite time limit for any given period. Manual operation is provided by throwing a switch which replaces the contacts of the relay controlling the cam-switch by a push-button.
Patent GB-136299-A (GB)
Title: Improvements in or relating to Means for Controlling the Delivery and Discharge of the Refrigerating Medium to and from Ice-manufacturing Apparatus Operated on the Direct Expansion System.
Inventor: DAVIS ALBERT CHARLES
IPC: F25C1/06
Filed: 1918-12-20
Abstract: 136,299. Davis, A. C. Dec. 20, 1918. ice-making, plate systems and apparatus for.-In apparatus operating on the direct expansion system, two inlet pipe-lines for the refrigerant are provided for each tank, and valves are arranged so that the refrigerant may be passed and expanded through the plates in one direction for freezing, and then passed through the plates in a reverse direction as a liquid, to thaw-off the ice and to cool the liquid refrigerant for use in freezing another tank of the system. The Figure shows the arrangement applied to one tank d having inlet pipe-lines 1, 2, a discharge 3 for the expanded refrigerant, and pipes c, g leading to and from the plates in the tank. In the freezing operation, the refrigerant flows through a branch a, valve A, and pipe 1 to an expansion valve C, and thence through a header b to the plates, returning through the pipes g, a header f, and valve F to the discharge pipe 3. After freezing is completed, the valves A, C, F are closed. Liquid refrigerant is then passed from the pipe 2 through a valve E, pipe h, the header f, and pipes g to the plates, and returns to the liquid pipe-line 1 through the pipes c, header b, and a valve B on a branch e. This liquid is thus reduced in temperature and passes on to another tank where freezing is commencing. When the ice is removed and ,he tank refilled with fresh water, the supply from the pipe 2 is cut off, and an expansion valve G on a. return branch i is opened to allow any refrigerant remaining in the plates to evaporate slowly and pass into the discharge pipe 3. The valves are then set again for freezing. If no branch i is used, the valve F is employed in place of the valve G in the third stage described. According to the Provisional Specification, the arrangement may be applied to the several plates of a single tank.
Patent GB-387328-A (GB)
Title: Improvements in and relating to vapour-electric discharge devices
IPC: H01J13/18
Filed: 1931-07-27
Abstract: 387,328. Metallic-vapour apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Hull, A. W. ; 1435, Lowell Road, Schenectady, New York, U.S.A.) July 27, 1931. No. 21407. Convention date, Aug. 1, 1930. [Class 39 (i).] Back-ignition due to condensation of vapour on the anode is prevented by arranging that the level of the cooling medium in the jacket 15, Fig. 1, is above the lower end of the anode seal 14. Water contained in a jacket 16 surrounding the projecting anode housing is in communication with that in the jacket 15 through holes 17, but is sufficiently stagnant to attain a comparatively high temperature and to maintain the temperature of the anode housing during idle periods. An air or oil jacket 23 surrounds the seal which may comprise a plate 18, Fig. 2, secured to a sleeve 25. A sleeve 29, which is mounted on a stud 26 connected to the anode stem, is separated from the sleeve 25 by material 28 known under the Registered Trade Name " Micalex."
Patent GB-170636-A (GB)
Title: Improvements in or relating to speed indicators
IPC: G01P11/00
Filed: 1920-07-16
Abstract: 170,636. Binny, J. G. July 16, 1920. Differential speed indicators measuring average speed directly.-The average speed of a vehicle over the interval of time elapsed since the last setting is indicated on a dial 9 by means of two logarithmic spirals in the form of grooves 1<a> in plates 1, 2 rotated by clock-work and the vehicle respectively. Two half-nuts 4, 5 are controlled by the corresponding grooves through projections 3 and engage a sleeve 6 provided with left and right handed screw-threads axially slidable upon the spindle 7 of the pointer 8. The dial is graduated co-logarithmically and may be arranged to show speeds through two rotations of the pointer.
Patent GB-313790-A (GB)
Title: Improvements in or relating to flexible suspensions for motor vehicles
IPC: B60G3/26
Filed: 1928-07-24
Abstract: 313,790. Jackson, L. Mellersh-, (Soc. Internationale Holverta). July 24, 1928. Springs, arrangement of.-In a spring suspension of the type in which a stub axle mounting d for each steering wheel b is connected to the chassis by an upper link g and a longer lower link j, so arranged that the point of contact a of the wheel with the ground is always displaced in a vertical plane parallel with the longitudinal axis of the chassis, the outer pivot points i, l of the links, and the point of contact a are in line with the steering axis c of the wheel. The suspension spring is interposed between a lateral arm r on the chassis and the stub axle mounting d by means of swivelling joints s, t. A geometrical method of determining the positions of the pivot points h, i, k, l, of the links is given.
Patent GB-198936-A (GB)
Title: Improvements in safety devices for electrical apparatus
IPC: H01F27/40
Filed: 1922-08-05
Abstract: 198,936. Buchholz, M. Aug. 5, 1922. Transformers.-A safety device for transformers and other electrical apparatus operating in an insulating liquid comprises a cut-out or alarm, the circuit to which is completed by the action of bubbles of gas formed in the insulating liquid upon the occurrence of abnormal conditions. The bubbles may be the result of sparking, or they may be released, when the temperature, of the insulating liquid rises from hollow vessels having openings closed by a fusible substance, and they may operate a contacting device in various ways. Fig. 3 shows a transformer c in a bath a. Any bubbles formed rise up a tube s, and cause a float r to descend and complete a circuit at k to the cut-out f. In a modification, the formation of the bubbles causes liquid to be ejected which falls into a cup at the end of a pivoted bar. In another modification a diaphragm in the wall of the vessel a is vibrated against two contacts in the circuit to an alarm. Fig. 6 shows a modification in which contacts k are closed on the formation of bubbles by the relative movement of a large and small float C and D respectively. Fig. 8 shows a modification in which bubbles are released from a vessel G by the melting of a plug K. The bubbles rise past a spark gap F and so allow the circuit to the cut-out f to be completed.
Patent GB-653502-A (GB)
Title: Electrical pulse storage or delay systems
Inventor: CARTER RONALD HERBERT ARTHUR
IPC: G11C19/18
Filed: 1948-08-13
Abstract: 653,502. Pulse delay circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 13, 1948, No. 21479. [Class 40 (vi)] In a pulse delay system for binary scale computers, a capacitor C4 is charged through a diode V1 by an incoming positive pulse and discharged through a diode V2 under the control of a switching wave 2 applied at B, producing an intermediate pulse which is amplified at V4. This latter pulse charges a capacitor C6, which is discharged through a diode V6 under the control of the next part of the switching wave, producing an output pulse at D similar to the input but delayed by one cycle of the wave 2. Diodes V3, V7 prevent the potential on the lower end of the primaries of transformers T1, T2, from rising above earth level. Negative incoming pulses charge a condenser C4<SP>1</SP> and in a similar manner produce output pulses at D of a sign opposite to those derived from positive incoming pulses. In this circuit an inverted switching wave 3 is applied at C and all diodes are reversely connected. The transformers T1, T1<SP>1</SP>, may be combined to provide positive and negative impulses from a common secondary, the single amplifier being suitably biassed. In a further modification, Fig. 3 (not shown), the output from T1<SP>1</SP> is reversed and both amplifiers operate with a large standing negative bias; the second primary winding on T2 being reversed and connected to R5, V7, so that C3<SP>1</SP>, R5<SP>1</SP>, V7<SP>1</SP>, are eliminated and the second switching wave 3 is only applied to T1<SP>1</SP>. By reversing the polarity of the pulses applied at C1<SP>1</SP> with respect to those applied to C1, the need for the second switching wave 3 is eliminated. Multiple delay is obtained by repeating the circuit.
Patent GB-164628-A (GB)
Title: Improvements in and relating to garters
IPC: A41F11/16
Filed: 1920-07-16
Abstract: 164,628. Grund, H. July 16, 1920. Sock-suspenders.-A sock-engaging device for use with an adjustable garter comprises a U- shaped spring clip 4, the arms 6, 7, of which carry finger-pieces 11, 12 and have their ends coiled upon themselves to form coacting beads 8, 9. A rubber &c. strip 13 may be passed round the body pc.rtion and the ends clamped as indicated at 14, Fig. 4.
Patent GB-149300-A (GB)
Title: Improvements in and relating to locks
IPC: E05B55/00
Filed: 1920-07-17
Abstract: 149,300. Rheinische T³rschliesserfabrik Boge & Kasten. July 18, 1919, [Convention date]. Locks, revolving-barrel; locking sliding latches; night latches.-A mortise lock s combined with a pair of cylinder locks, one on each side of the door, which control the movement of a part 20, Fig. 6, having pins 22 which engage slots 27 - - 30 in the blocking-bolt 15. Fig. 1 shows the normal position, in which the latching-head 8 can be drawn by a slide 19, when a pin 17 moves in a slot 18 in the bolt plate. It can also be released from either side of the door by a key 26, Fig. 3, the nose of which enters the opening 23 in the member 20, thus turning it simultaneously with the inner part of the cylinder lock 1. The pin 22 engaging in the slot 30 of the bolt-plate withdraws the latch. To lock the device, the bolt-plate is shot forward to block the latch, in which position the pins 22 engage the slots 27, 28. A head 34 on a spring lever 33 bears against a flat on the member 20, and holds it in the position in which the pins 22 lie in the line of movement of the bolt-plate, which is thus secured. A bolt as described above may be arranged alongside an ordinary latch. Additional slots may be formed to provide for a multiple movement of the key.
Patent GB-623892-A (GB)
Title: Improved method of treating sheets of ferrous silicon magnetic material to produce an electrically-insulating film on the surfaces of the sheet
IPC: H01F1/147
Filed: 1947-08-07
Abstract: The subject-matter of this Specification is identical with that described in Specification 572,491, [Group XXXV].  Specification 553,864, [Group XXXVI], also is referred to.
Patent GB-891797-A (GB)
Title: A hydropneumatic elastic device
Inventor: PAUER VACLAV
IPC: F16F9/088
Filed: 1959-06-24
Abstract: 891,797. Hydro-pneumatic spring units. ZAVODY V. I. LENINA PLZEN, NARODNI PODNIK. June 24, 1959, No. 21646/59. Class 108(3). A hydropneumatic suspension device for comprises two mutually telescoping tubes 1, 2, a piston 8 at the inner end of the inner tube with packing engaging the inner wall of the outer tube and a plurality of transfer ports some of which are closable by one-way valve 13, a resilient bag 4 within the inner tube having its open outer end fixed to the outer closed end of the inner tube and means 7 for filling the bag 4 with a gas and means 9 for filling the tubes with liquid. In the embodiment a closed perforated tube is provided within inner tube 2 to limit outward expansion of the bag and a perforated grid 5 to prevent the bag contacting threaded opening 7 to which an automatic pressure regulating device is connected. In an alternative construction the inner end of the bag is closed by the end of the tube 3 which is perforated along its length.
Patent GB-479495-A (GB)
Title: Laddering and ruffling preventing in silk and other fabrics
IPC: D06M11/57
Filed: 1936-08-06
Abstract: Silk and other fabrics are rendered ladder-proof by steaming, immersing in a bath containing aluminium sulphate or alum, steaming, soaping, rinsing and washing.  The bath preferably contains alum, isinglass, gelatine and water.  The elasticity of the fabric is also improved.
Patent GB-740241-A (GB)
Title: Improvements in and relating to frequency dividers
Inventor: KOHN CZESLAW TEODOR
IPC: H03B19/12
Filed: 1951-09-14
Abstract: 740,241. Frequency dividing circuits. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Sept. 15, 1952 [Sept. 14, 1951], No. 21685/51. Class 40 (6). An oscillation of frequency f is applied to a gate so as to pass normally positive half-cycles (or part thereof) and reject negative half-cycles to a resonant circuit tuned to the desired integral sub-harmonic f/n. A control circuit is coupled to the resonant circuit and to the gate device to prevent each positive half-cycle from contributing appreciably to current flow in the gate while permitting each negative half-cycle to close the gate device against the passage of the positive half-cycles of the input oscillation. The gate device may be a thermionic valve or a magnetic amplifier. The input, applied to primary 12 of a transformer causes normally biased-off valve 15 to conduct. Tuned circuit 20 oscillates at half the frequency, this oscillation being fed over coupling coil 21 and rectifier 22 to cause the control grid to be driven negatively and thus suppress alternate pulses of current through the valve 15 so that the circuit 20 is pulsed at half the input frequency. Division by higher even integers may be obtained. In a modification to enable division by odd integers, the grid resistor 23 is returned to a tap on the cathode resistor, Fig. 2 (not shown), so that it is maintained conducting for a larger proportion of the subharmonic cycle. In a further modification, Fig. 3, a division of ten may be obtained, the feed-back over coupling coil 21 being applied through a resistor 24 and shunt rectifier 22. A hexode may be employed with the input and suppressing voltages fed to the first and third grids respectively. As a low Q circuit 20 is preferable, an amplifier may be interposed between the inductor 21 and the resistor 23 or 24. Specifications 474,388, 475,595, 526,584, 608,882 and 628,125 is referred to.
Patent GB-1136148-A (GB)
Title: Copolyesters and a process for their production
IPC: C08G63/68
Filed: 1966-05-16
Abstract: 1,136,148. Coloured polyesters. ALPINE CHEMISCHE A.G. 16 May, 1966 [19 May, 1965], No. 21698/66. Heading C3R. Self-coloured polyesters are made by polycondensing (a) an aliphatic or aromatic dicarboxylic acid (or ester-forming derivative thereof), (b) an aliphatic or cycloaliphatic diol, (c) a phthalocyanine tri- or higher polycarboxylic acid (or ester-forming derivative thereof) in an amount of 0À01-3À0 mol. per cent based on (a) and, possibly (d) a glycol ether of a dihydric phenol, preferably in an amount of up to 40 mol. per cent based on (a). Specified reactants are: for (a)-adipic, sebacic, terephthalic, isophthalic, naphthalene-2 : 6-dicarboxylic and diphenyl-3 : 3<SP>1</SP>- (or 4 : 4<SP>1</SP>-) dicarboxylic acids; for (b)-glycols of formula where n is 2-10 and X is a -C(RR<SP>1</SP>)- group in which R and R<SP>1</SP> are hydrogen atoms or C 1-4  alkyl groups, 1 : 4-cyclohexanedimethanol and polyethylene glycols containing 1-101 ether oxygen atoms; for (c)-phthalocyanine polycarboxylic acids which are metal-free or contain Cu, Mg, Zn, Cd, Al, Ti, Fe, Co or Ni as central or complexed atoms; for (d) compounds of formula where a is 1-10, the benzene nuclei A and B may be further substituted, and R is a direct link or one of the groups -CX 2 -, -CH 2 - CH 2 -, -O-, -SO 2 -, -CO- or -NX-, X being a hydrogen atom or a substituted or unsubstituted C 1-4  alkyl group. Examples describe the preparation of polyesters containing the residues of terephthalic acid, ethylene glycol, copper or cobalt phthalocyanine tetracarboxylic acid and, possibly, the bis-ethylene glycol ether of bisphenol A.
Patent GB-868576-A (GB)
Title: Improvements in or relating to a photographic camera provided with automatic exposure control means
IPC: G03B7/085
Filed: 1959-06-24
Abstract: 868,576. Photo-electric camera exposure control. KODAK Ltd. June 24, 1959 [June 30, 1958], No. 21729/59. Class 40(3) [Also in Group XX] In a camera having a diaphragm vane with an elongated variable-width aperture for co-operating with a fixed aperture under photo-electric control, a manually adjustable device is included for reduction of light through the fixed aperture and when operated causes the vane to be so moved that no obturation of the fixed aperture ensues. The device comprises a disc 44 with graduated areas 48 and an integral cam 58 which co-operates with a photo-electrically controlled between-lens diaphragm vane 16 to maintain the latter with the maximum-width portion of its aperture 18 aligned with a fixed-area aperture constituted by the rear lens of the camera objective. Mask(s) may be provided as described in Specification 867,705 to effectively centralize the composite aperture formed by masks and vane over the fixed aperture; the mask(s) may be displaced manually when the photo-electric meter scale indicates low light intensity, Fig. 1 (not shown).