baber/WOPTO huggingface dataset:
Patent GB-842352-A (GB)
Title: Multiple collector transistor
IPC: H03K23/00
Filed: 1956-05-23
Abstract: 842,352. Transistor logical circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 23, 1956 [May 25, 1955], No. 15904/56. Class 40(6). [Also in Group XXXVI] A two collector junction emitter transistor (see Group XXXVI) is used to perform a number of logical functions. When the collectors of such a transistor are connected to a common bias source through different load resistors, as in Fig. 6, it is possible to arrange that when one unit of emitter current flows only one of the collectors conducts, that with two units of emitter current the first collector saturates and current is transferred to the second collector to the exclusion of the first collector, and that three units of emitter current saturate the second collector and cause the first collector to conduct in addition. If inputs of zero and unit current, representing digits 0 and 1 respectively, are applied at terminals 21, 22, 23 the circuit acts as a full binary adder with gain. If, on the other hand, a function selection signal of one unit of current is maintained at one terminal the "AND" and "EXCLUSIVE OR" conditions are indicated by conduction in collectors 9 and 8 respectively. If a function selection signal of one unit is applied at one terminal the "OR" and "IF AND ONLY IF" conditions are indicated by current in collectors 9 and 8 respectively. With a function selection signal of one unit of current applied at 23 and zero units at 22 the "NOT" condition is indicated by current in collector 8. With the load resistors adjusted so that each of the collectors is saturated by less than two units of input current and with a continuous zero input at terminal 23 the "OR" and "AND" conditions are indicated by current in collectors 8 and 9 respectively. By lowering the load resistance in the circuit of collector 9 so that at least three units of emitter current are required to saturate it, and applying a function selection signal of one unit at terminal 23, the "NEITHER" condition is indicated by current in collector 8. If, on the other hand, the load in the circuit of collector 8 is lowered so that it saturates when the emitter current lies between 2 and 3 units, and a function selection signal of one unit applied at 23, current in collector 8 indicates the "NOT BOTH" condition. The circuit can be made to act as a memory device by feeding the output of collector 8 back to one of the input terminals and adjusting the loads so that between 2 and 3 units of input current are required to saturate collector 8. When one unit of current is applied to one of the input terminals collector 8 conducts and the feedback maintains the current when the input current is removed. Read-out may be accomplished non-destructively at terminals 32, 33, or destructively by applying a read-out unit pulse of input current to switch the current to collector 9 and sensing at terminals 30, 31. At the end of the read-out pulse due to the absence of feedback from collector 9 both collectors become non- conductive. Erasure is effected by means of a negative input impulse.
Patent GB-629370-A (GB)
Title: Improvements in or relating to dielectric heating
IPC: H05B6/62
Filed: 1947-06-17
Abstract: 629,370. Dielectric heating. ARMSTRONG CORK CO. June 17, 1947, No. 15912. Convention date, Oct. 10, 1946. [Class 39(iii)] In order to obtain uniform heating and curing of a substance 15 (e.g. powdered cork and a synthetic resin binder) by R.F. energy applied between electrodes 13, 14, the electrodes are heated externally by resistance heaters 29 the resultant temperature being measured and utilised to control the imput of R.F. energy and consequently the rate of dielectric heating. The temperature of the electrodes 13, 14, is measured by thermocouples 35 and resistive indicators 38, the temperature of the interior of the substance being measured by a similar arrangement in a tube 42 inserted in the middle of the substance. The various temperatures may be indicated by meters 37, 41, 50, and the rate of dielectric heating controlled so that the temperature is maintained uniform throughout the substance, alternatively means responsive to the temperature differential may be employed to adjust the R.F. energy input automatically in accordance with the electrode temperature. Temperature responsive means may also be employed to shut off the R.F. and electrode heating when the heating cycle is complete. Specification 629,372 is referred to.
Patent GB-1049696-A (GB)
Title: Method of manufacturing synthetic fibres of polyvinyl alcohol
IPC: D01F6/14
Filed: 1964-04-17
Abstract: 1,049,696. Polyvinyl alcohol filaments. KURASHIKI RAYON KABUSHIKI KAISHA. April 17, 1964 [April 23, 1963], No. 15963/64. Heading B5B. Polyvinyl alcohol fibres of good dimensional stability and low water-solubility are made by dry-spinning or semi-melt spinning an aqueous solution of polyvinyl alcohol of more than 30% concentration and the filaments so obtained are stretched at a moisture content of 50-120% and 0-100 C. to a stretch ratio of 1À1-3À0; dried to a moisture content of 4-20%; stretched at less than 160 C. to a total stretch ratio of 2-6 (based on initial length); and thereafter maintained at a constant length until the strain is set in the filaments. Preferably the moisture content of the filaments at the first stretching is 80-90 C., the first stretching is carried out at room temperature and the filaments are dried after the first stretching to a moisture content of about 10%, the second stretching is carried out at a stretch ratio of about 4, and the filaments thereafter wound on a bobbin until the strain is set.
Patent GB-240552-A (GB)
Title: Improvements in building constructions
IPC: E04B2/56
Filed: 1924-07-04
Abstract: 240,552. Griffiths, F., and Cromwell, B. July 4, 1924. Walls.-A building is formed of a wooden framework erected on a concrete foundation and concrete slabs of length equal to the spacing of the vertical timbers 5 are placed between the uprights. Cross-pieces 11 of width equal to the thickness of the slabs connect the wooden uprights at intervals and the ends of the slabs are bevelled to engage between fillets 7 secured to the uprights. The walls may be, faced internally with asbestos sheets and externally with weather boarding, tiling or the like. The walls may be hollow.
Patent GB-1118882-A (GB)
Title: Improvements in or relating to coin operated mechanisms
IPC: G07F11/00
Filed: 1966-04-12
Abstract: 1,118,882. Coin-operated mechanisms. C. E. COOK. 7 March, 1967 [12 April, 1966; 20 Sept., 1966], Nos. 16052/66 and 42028/66. Heading G4V. A coin-operated mechanism is combined with means for delivering a coin or token on actuation of said coin-operated mechanism and a timeswitch for rendering the delivery means operative or inoperative at preselected times, whereby a rebate may be returned to a customer during off-peak times. In particular, the coin-operated mechanism is applied to a washing or dry-cleaning machine. A time switch 1 controls contacts 2, 3 in series with a power supply line L and relay contacts 9, 10. Relay 8 is operated by a coin-operated mechanism (not shown) via terminals 15, 16. Relay contacts 9, 10 are in the supply circuit of solenoid 6 controlling pay-out slide 5. Interruption of the power supply results in de-energization of solenoid 12, whereby a section 11 of the coin return shoot is pivoted to direct coins back into the machine. An indicator lamp 17 is energized when the clock controlled contacts 2, 3 are closed. The solenoid 12 and terminal 16 may be connected directly to the supply L and relay 8 may be omitted, terminal 15 being connected directly to the solenoid 6. In a modification, two pay-out units and time control switches are provided whereby different rebates may be offered at different off-peak times. In a third embodiment, figure 3 (not shown), a single time switch (1) is provided in the power supply of a plurality of pay-out units (21), (22), each pay-out unit being incorporated in a separate machine. Operation of a coin slide (25) closes a switch (23) in the circuit of a pay-out solenoid (6). To prevent fraud and ensure that the pay-out slide does not operate more than N times in an interval T minutes, the pay-out circuit is completed through the first N contacts of a rotary stepping switch. A continuously operating timer returns the switch to its home position every T minutes. A counter may be connected across the solenoid 6 or relay 8 to determine the number of payouts effected or the total usage of the machines, respectively.
Patent GB-162954-A (GB)
Title: Improvements in means for securing railway rails to sleepers
IPC: E01B9/46
Filed: 1920-06-14
Abstract: 162,954. Sanowski, W. June 14, 1920. Sleepers, securing rails to.-Sleepers 10 have recesses 15 for the rails 11 and cross recesses 16 undercut to receive clamps 12 which, when moved in to engage the rails, are secured by blocks 13 fitting in the cut-away ends 19 of the recesses 16 and retained by bolts 14.
Patent GB-884617-A (GB)
Title: Evaporator for producing a supersaturated solution
IPC: B04C3/00
Filed: 1960-05-06
Abstract: In a crystallizing apparatus wherein a supersaturated solution is produced in a cylindrical evaporator A (Fig. 1) and is fed to a crystallizer B, the mother liquor being returned by a pipe D, pump E, heater F and pipe 5 to the evaporator, the pipe 5 is branched to provide at least two inlets 6 and 7 (Figs. 2 and 3) which are tangential to the cylindrical evaporator 1 and are so <PICT:0884617/III/1> <PICT:0884617/III/2> <PICT:0884617/III/3> <PICT:0884617/III/4> <PICT:0884617/III/5> positioned as to feed liquid into the evaporator in opposite directions, i.e., one in a clockwise and the other in an anti-clockwise direction, the arrangement permitting a higher degree of supersaturation in the evaporator and serving to remove crystal deposits from the evaporator walls before they assume too large a size.  The inlets 6 and 7 are preferably of unequal cross-section, are fed from a narrowing bore 9, and are disposed one above the other.  The inlet 7 is also provided with a valve 8. Modified dispositions of the inlets 6 and 7 are shown in Figs. 4 and 5.
Patent GB-980007-A (GB)
Title: Process for preparing mixtures consisting mainly of polymers and/or copolymers
IPC: C08K5/098
Filed: 1963-04-24
Abstract: Crystalline polymers or copolymers of a -mono-olefins are given improved properties by mixing the polymer or copolymer with a metal salt formed from an alkali or alkaline earth metal and a mono carboxylic acid containing at least one ring structure and having:-(a) the carboxyl group attached to a ring carbon atom; or (b) the carboxyl group attached to an aliphatic carbon atom, and a ring attached to the same or another aliphatic carbon atom; forming a melt from the mixture and then cooling to crystallize the product. Exemplified salts are the sodium salts of benzoic acid, cyclohexane carboxylic acid and diphenyl acetic acid, potassium benzoate and the sodium, calcium and magnesium salts of p-tert.-butylbenzoic acid. The composition may also contain an elastomer.  Many other acids are specified.  Specifications 802,460, 835,132, 856,793, 885,325 and 895,844 are referred to.
Patent GB-643626-A (GB)
Title: Hand moistener, shaped as a fountain pen for damping envelopes, stamps and similar gummed labels
IPC: B43K8/20
Filed: 1948-06-16
Abstract: <PICT:0643626/III/1> A moistener for envelopes, stamps and gummed labels comprises, in the form of a pen-holder, an upper and a lower socket connected by a screw.  A rotatable cylinder 1 fixed on axle 2 is set in the aperture of the lower socket 5 which contains absorbent material 4 such as sponge, cotton or felt.  This is connected to a water supply in a rubber tube 7 contained in the socket 8 and against which a press 9, connected to a clip 10, is inserted, by means of which the absorbent material and the cylinder are moistened.
Patent GB-959985-A (GB)
Title: Improvements in or relating to chain handling apparatus
IPC: B63B21/22
Filed: 1961-05-04
Abstract: 959,985. Hauling chains; chain stops. BLUNDELL & CROMPTON Ltd., M. W. CROMPTON, and E. R. CHAMBERLAIN [Representatives of H. E. CROMPTON]. May 2, 1962 [May 4, 1961], No. 16237/61. Addition to 885,415. Heading B8B. In apparatus for handling a chain, such as the anchor chain of a small boat, the base member 10, Fig. 1, forms a fixed guide 15 in which the chain is frictionally engaged by a movable brake member 30, the guide also carrying a pivoted locking member 24 which may be swung in or out of the position so that a projection 25 engages between the links of the chain. The brake member 30 may be engaged by the operator's foot or may be controlled remotely by a lanyard 36, Fig. 7, tied to a cross-pin 22 of the locking member 24 and passed over the grooved end 33 of the brake member 30 to an eye 38. For additional security the cross-pin 22 may be used as a cleat around which the chain may be wound. A lever 40, Fig. 9, is also provided to which a hook 44 is attached for hauling the chain when the anchor is fouled. The lever 40 may be pivoted to form two folding parts 40, 42 which are held rigidly together by a ring 45 attached to the hook 44.
Patent GB-313914-A (GB)
Title: Improvements in bandages or catamenial appliances
IPC: A61L15/16
Filed: 1929-05-27
Abstract: 313,914. Richter, J. June 19, 1928, [Convention date]. Addition to 278,665. Catamenial appliances. - A catamenial bandage comprises a pad 3, preferablv of cellulose wadding, shown in transverse section, over which are laid sheets 1, 2 of muslin gauze which may extend beyond the pad for attachment to a support; a further sheet of gauze 4 of width not substantially less than the length of the pad is wrapped transversely round the pad so as to cover the open edge, the free end 5 being left unsecured.
Patent GB-115587-A (GB)
Title: Improvements in the Manufacture of Articles from Pulp.
Inventor: DRAKE WALTER HENRY
IPC: D21J7/00
Filed: 1917-11-07
Abstract: 115,587. Drake, W. H. Nov. 7, 1917. Moulding pulp. - Articles, such as dairy utensils, containers for food, tobacco, &c., are formed by introducing pulp into a foraminous mould and applying fluid pressure at a point near the bottom of the mould so as to force the pulp upwardly along the sides of the mould and force the water through the mould. As shown, the mould comprising hinged sections 16, 17, is furnished with a duct 18, terminating near the bottom of the mould, through which duct pulp is supplied from a receptacle 10 fitted with a cut-off 14 and through which compressed air is introduced through a connexion 15. The duct 18 is provided with an adjustable sector 18<1> whereby the relative thickness of the bottom and side walls of the article may be adjusted.
Patent GB-858328-A (GB)
Title: Vertical screw press
IPC: B29C48/50
Filed: 1959-05-12
Abstract: 858,328. Extrusion machines. ONDERZOEKINGSINSTITUUT RESEARCH N.V. May 12, 1959 [July 15, 1958], No. 16286/59. Class 87(2). An extrusion machine comprises a feed hopper 5 attached to a cylinder 2 containing a screw 3 and is characterized by the provision of radially directed pins 6, 7 secured to the screw and the inner wall of the hopper. The pins in the hopper may be circumferentially and axially spaced from each other and the pins on the screw may be axially equally spaced between the pins of the hopper and be of such a length that extend to the end of the hopper pin above. The pins of the hopper may extend half way between the hopper and screw and may not extend inwardly past the bore of the cylinder so that the screw may be removed. Frictionally generated heat may be utilised to melt the plastic material.
Patent GB-221889-A (GB)
Title: Improvements relating to photographic enlarging apparatus
IPC: G03B27/36
Filed: 1923-06-23
Abstract: 221,889. Aldis, A. C. W. June 23, 1923. Enlarging, copying, and reducing.-In vertical apparatus with cam-operated means for automatic focusing, the camera j counterbalanced by weight e, moves on rollers k, l on a pair of vertical guide-bars b to one of which a cam o is fixed. A lever n on the camera j engages the cam o for automatic adjustment of the lens holder h, a spring p acting on the lever and camera to eliminate slackness between the camera and the guidebars. The camera, which may be made of sheet metal or of cast aluminium, is connected with the weight e by a cord or chain passing over a pulley i. The interior of the camera is fitted with a stage r for the negative, above which is arranged the illuminant which may consist of four electric lamps arranged in parallel or two in series above a ground-glass screen. The four sides of the chamber between the lamps and the screen may be formed with plane mirrors. The lensholder h is guided by a rod s movable in a fixed tubular guide t, and rests on a roller fitted to the lever n. Clamping means are provided for securing the camera to the guide-bars b after adjustment. In a modified construction, more particularly useful for reductions, a second cam u is mounted on the guide-bar b. A threaded spindle v rotatably mounted in a threaded tubular stem pivoted to the camera, and having a hooked end engaging the spindle of the roller m of the lever n, enables the lever to be adjusted relatively to the cam u against tension of the spring p. An additional detachable spring w is also provided. The base of the apparatus may have a table q for the sensitive paper. Tie-rods d for the guide-bars b and a guide-rod f for the weight e are also provided. Specification 11620/06 is referred to.
Patent GB-515438-A (GB)
Title: Improvements in or relating to tool holders for lathes or other machine tools
IPC: B23B27/16
Filed: 1938-06-01
Abstract: 515,438. Lathe &c. tools and tool-holders. O.K. TOOL CO., INC. June 1, 1938, No. 16405. Convention date, March 12, 1938. [Class 83 (iii)] A lathe or like tool-holder comprises a body 10 having a recess 11 in which a bit 12 is secured by means of a wedge 13 extending across the full width of the recess and having a central enlargement 19 fitting on an overhanging part 10b of the body and adapted to receive a clamping screw 18 which operates the wedge to engage the tool bit firmly with its seating 14 and the inclined rear abutment surface 15. The upper surface 12e of the tool bit converges forwardly towards the bottom surface 12c so that the wedge may urge the bit rearwardly and downwardly during clamping. The path of movement of the wedge approximates the direction of the resultant tooling forces on the bit. The. included angle of the wedge is greater than the angle of friction but less than 90 degrees, preferably about 30 degrees, and the inclination of surface 12e to the bottom surface 12c is about 10 degrees. The bit and recess may have complementary serrations 25 to provide means for lateral adjustment of the bit and to prevent twisting movement.
Patent GB-1456317-A (GB)
Title: Image scanning converter for automated slide analyzer
IPC: G06T1/00
Filed: 1974-04-11
Abstract: 1456317 Image analysis CORNING GLASS WORKS 11 April 1974 [20 April 1973] 16412/74 Heading G1A Image analysis apparatus is arranged to scan a sample e.g. a blood smear to produce a video signal which at timed intervals is converted into digital words by an analog-to-digital converter for storage in an addressable memory. In the particular arrangement a microscope slide 12 is scanned by a vidicon tube 17. For colour analysis a colour tube may be used or a monochrome system using two colour filters e.g. blue and yellow, Fig. 2, so as to produce side-by-side images in the detector viewing plane. The system is designed so that corresponding points in the two images form parts of the same digital word to be stored at the same address in the memory. A timing pulse generator 20 described in detail with reference to Fig. 4 (not shown) produces pulses at intervals suitable to allow the A/D converter to perform a conversion and appropriate to the cycle time of the memory, the timing pulses occurring at different times relative to two successive scan lines.
Patent GB-457808-A (GB)
Title: Improvements in or relating to control mechanism for propellers or the like
IPC: B64C11/42
Filed: 1935-06-06
Abstract: 457,808. Screw propellers. UNITED AIRCRAFT CORPORATION, 400, South Main Street, East Hartford, Connecticut, U.S.A.-(Assignees of Caldwell, F. W., and Martin, E.) June 6, 1935, No. 16464. Convention date, June 6, 1934. [Class 114] [See also Groups XXVI and XXIX] Mechanism for controlling the speed of a rotating body or engine comprises a control mechanism actuated bv difference of speed of a device driven at constant speed and a device actuated by the rotating body is utilised for changing the pitch of a screw propeller driven by the engine or rotating body. The blades of the screw propeller are connected to one element of a hydraulic mechanism which is supplied with oil under pressure and is controlled by a valve. This control is applied automatically by means of a constant speed electric motor 60 driving a cam disc 58 disposed opposite a cam disc 56 on one end of the control valve 38 whilst at the other end is a cam disc 48 beside a cam disc 52 on a shaft 54 driven from the engine. The two discs 58 and 52 are inwardly urged by springs 66. When the electric motor 60 and the shaft 54 are running at equal speeds the control valve 38 rotates with them but remains centrally disposed with regard to its inlet and outlet ports. When the speeds differ one of the cam members attempts to over-ride the other and so force the valve to right or left and establishes communication between the ports whereby oil is passed to the hydraulic mechanism and the blade is adjusted. In an alternative arrangement two shafts 70, 72, running at speeds represented by a constant-speed reference motor and the driven engine, carry bevel wheels 74, 75 meshing with a free bevel 76 carried by a casing 78 under restraint of a brake 80, the brake 80 being linked directly with the control valve 36. When there is a difference of speed between the two shafts 70, 72 there is a resultant motion of the brake 80 and piston valve 36 which affects the change of pitch as above. In a modification the brake casing carries a projection 84 adapted to contact with a disc 86 on an extension of the valve spindle which is normally retained in the neutral position by springs 90, 92. Specification 416,255 is referred to.
Patent GB-714850-A (GB)
Title: Improvements relating to trays for drinking glasses
IPC: A47G23/02
Filed: 1951-07-12
Abstract: 714,850. Trays. BUSBY, L. R. July 11, 1952 [July 12, 1951], No. 16507/51. Class 128 A tray for drinking glasses comprises a standard tray 1 and a circular thermoplastic upper tray 6 having perforations 7 in its base, an outwardly inclined wall 5 and an outwardly directed flat rim 4, which wall and rim engage corresponding parts of the tray 1, having a space 8 to catch any liquid overflowing from glasses 9. The Provisional Specification also describes an upper tray having a wirework base.