baber/WOPTO huggingface dataset:
Patent GB-1389758-A (GB)
Title: Rate analysis system
IPC: C12M1/34
Filed: 1973-04-10
Abstract: 1389758 Measuring rate of change of voltage BECKMAN INSTRUMENTS Inc 10 April 1973 [17 April 1972] 17118/73 Heading G1U In a measurement system in which the rate of change of a signal is determined and displayed, logic is used to allow display of the rate of change only when the differential thereof is substantially zero. In analyzing the action of enzymes in a sample cell 12, a monochromatic light source 14 illuminates a photo-multiplier 16 through the cell. A signal representing the absorbance of the enzyme mixture is derived by log. amp 20. This signal is differentiated 34, rectified 35 and passed to an A-D converter (40), Fig.2 (not shown) via line 37. The output of the rectifier 35 is itself differentiated and rectified and applied via LPF 64 to a comparator 66. The comparator reference level is set by an internal reference voltage (e.g. a Zener diode) and a value dependent on the magnitude of the rate of change signal, applied via resistor 67. An external programmer (not shown) provides enabling pulses and other signals dependent on the type of enzyme being studied. 'Clock set' and 'start read' signals combine to set bi-stable 74 which controls sample and hold 110 to sample the absorbance signal from log. amp 20 and supply it to comparator 112 thirteen seconds later. Comparator 112 thus measures the change in the absorbance #A over that period. Comparator 95 determines whether #A exceeds a pre-set maximum. The absorbance signal is also supplied to comparators 92, 94 which determine whether A goes outside pre-set maximum or minimum levels. The reference levels for comparators 92, 94, 95 are determined by the enzyme being analyzed and the characteristics of the reaction in cell 12, Fig.4 (not shown). A further comparator 91 determines whether the rate of change signal exceeds the full scale display of the indicator (48), Fig.2. Signals 80, 82 from the external programmer initiate operation of the display unit Fig.2. When comparator 66 indicates that the reaction is steady i.e. the rate of change is constant, an A-D converter (40) is enabled and the rate of change signal is averaged by an accumulator (45) over a thirteen second period. At the end of this period the averaged rate signal is applied to a digital display (48). If any of the signals 96-99 are changed to logic "1" during the measurement cycle indicating an abnormal reaction, a logic unit (50) detects this state, the display is blanked and an over-range indicator on the display is illuminated.
Patent GB-423340-A (GB)
Title: Improvements in cap screws or bolts
IPC: F16B39/284
Filed: 1934-06-09
Abstract: 423,340. Locking-bolts. PLACE, C. E. S., Port Chester, New York, and WINKLE, M. VAN, One Exchange Place, Jersey City, New Jersey, both in U.S.A. June 9, 1934, No. 17163. [Class 89 (i)] A bolt or cap screw is made self-locking by providing its head with a centrally-disposed bore 8 and its under surface with an annular bearing- surface 11 spaced from the shank 5 by the annular recess 10. The depth and diameter of the bore is such that the annulus 13 left between it and the groove 10 is dimensioned to act as an elastic diaphragm to produce the desired locking effect when the bolt is screwed up.
Patent GB-1321967-A (GB)
Title: Ampoules of transparent fused silica opaque fused silica or similar siliceous material
IPC: C30B31/10
Filed: 1972-04-13
Abstract: 1321967 Diffusion apparatus HERAEUS-SCHOTT QUARZSCHMELZE GmbH 13 April 1972 [27 April 1971] 17164/72 Heading H1K A diffusion ampoule of transparent or opaque fused silica or of similar siliceous material has a main body portion 1 (containing the diffusion space 8) with flanged ends 2, 3, to one of which is immovably fastened (preferably by a fused seal 5) a cover member 4 fitted with at least one tubular pipe. The other end has a base member 7 which is sealed (9) to the ampoule after the insertion of diffusion material. This base may be provided with a sealable pipe 10 useful for access to position the diffusion medium. Both cover and base members are preferably inwardly dished in part-spherical form.
Patent GB-1337510-A (GB)
Title: Device for producing high frequency impulse signals indicating wheel behaviour
IPC: G01P3/488
Filed: 1971-07-13
Abstract: 1337510 Dynamo-electric machines DAIMLER BENZ AG 13 July 1971 [14 July 1970] 17188/73 Divided out of 1337509 Heading H2A A tachogenerator particularly for use in an anti-skid braking system comprises a stationary part 11 secured to a vehicle axle 10 and carrying a coil 12 for producing a magnetic field, the part 11 also carrying an outer sleeve 13 having teeth 14 which co-operate with a rotor consisting of two annular discs 28, 29 which are stuck together, the disc 28 being stamped from magnetizable or permanent-magnet sheet material and having teeth 17, whilst the disc 29 is made of sintered metal and constitutes a bearing part. The rotor is supported on a projection 15 extending from the end of part 11 and the bearing surface of disc 29 has transverse grooves 30 which accommodate lubricant or collect abrasion products. The rotor is driven by a vehicle wheel through a spring 31 as described in Specification 1,337,508.
Patent GB-1275503-A (GB)
Title: Improvements in oral hygiene apparatus
IPC: A61C1/00
Filed: 1970-04-10
Abstract: 1275503 Oral hygiene apparatus SUNBEAM CORP 10 April 1970 [15 April 1969] 17237/70 Heading B2F [Also in Divisions F1 and F2] Oral hygiene apparatus comprises a pulsating pump connected with a handle 19 adapted to receive a removable nozzle 18, the handle including a shut-off valve manually operable by movement of the nozzle and means for controlling the amount of pulsating fluid supplied to the nozzle. As disclosed, the valve comprises a sliding cylinder 166 having slots 170 therein and actuated against a spring 171 by downward pressure on the nozzle grip 36. O-ring 167 normally seats against part 169 to prevent liquid flow. The control means, is a valve 163 having a stem 164 which engages hole 165. Rotation of sleeve 175, which has a diagonal slot 177 engaging pin 176 varies the lower limit to which part 36 can be depressed and thus adjusts the quantity of fluid flow through valve 163, and which is fed back via pipe 123 to the inlet side of the pump to prevent damaging back-pressures. All the fluid from the pump is fed back when the shut-off valve is closed. The handle may be mounted when not in use on a base which. also has supports for spare nozzles and contains the pump and a liquid reservoir. Removal or replacement of the handle actuates an on/off switch for the pump.
Patent GB-990734-A (GB)
Title: Improvements in rubber spring suspensions
Inventor: MOULTON ALEXANDER ERIC
IPC: F16F1/36
Filed: 1961-05-11
Abstract: 990,734. Rubber springs. MOULTON DEVELOPMENTS Ltd. May 11, 1962 [May 11, 1961], No. 17257/61. Heading F2S. A method of reducing primary creep in rubber springs comprises the steps of deflecting a spring to a strain corresponding at least to its fully loaded condition and holding the deflection for a significant time, e.g. 30 minutes, at this strain and then releasing the strain to a value corresponding to the static deflection of the spring during its service life the spring being prevented from ever reverting back into its free, undeflected, condition. The spring as described, e.g. in Specification 848,996, is first subjected to an hydraulic pressure for approximately 30 minutes of about 400 p.s.i. which corresponds to the bump position, the pressure being subsequently reduced to about 200 p.s.i. to correspond to the static deflection of the spring during its service life, provision being made, e.g. stops, for preventing the spring from adopting its free, undeflected, condition even when the vehicle is jacked and the sprung structure no longer bears upon the spring. In the case of cone spring suspensions as described in Specification 763,432, the spring is deflected to its bump condition and held there for 30 minutes, the strain then being released to a value corresponding to the normal static strain and held there by a bolted tie-piece until it is required for installation on the vehicle. Alternatively, the unrestrained spring may be assembled to the suspension linkage of a car and then compressed and held for 30 minutes at the full bump position before being released to adopt the static condition, stops being provided to prevent the spring from going into its free undeflected position. A comparable technique is adopted for torsional rubber shear springs of the kind described in Specification 676,190, Specifications 676,098, 813,259, 870,489. 914,166, 914,167 and 942,829 also are referred to.
Patent GB-624302-A (GB)
Title: Improvements in or relating to operating mechanism for lift or like sliding gates
IPC: E05F15/14
Filed: 1947-07-01
Abstract: 624,302. Gate operating-appliances. MORLEY, R. E. July 1, 1947, No. 17299. [Class 65 (i)] Mechanism for operating a pair of collapsible sliding gates 5, 51 comprises a cord 18 tensioned at its respective ends by weights 11, 12 and attached intermediate its ends to the gates at the points 22 and 23 respectively, the cord at one side of the gates being wrapped round a motor-driven capstan 14. The cord passes over pulleys 19, 20, 21 enclosed in a box track 9 which supports the gates, and a vertical box-like structure 10 forms a guide for the weights. The arrangement is such that the maximum tractive effort in the opening direction is a function of the weight 11 and the angle of wrap on the capstan, while the maximum tractive effort in the closing direction is that obtainable from the weight 12. In a modification provision is made at each side of a single gate for a weight guide within which is anchored an end of the cord, and between these anchorages and adjacent pulleys the cord is formed into bights upon which are suspended sheaves carrying the weights. One or each of the weights may be replaced by a spring.
Patent GB-169509-A (GB)
Title: Improvements in process of producing glue from blood
IPC: C09J189/00
Filed: 1920-06-25
Abstract: A glue is prepared from blood by treating it with a lime-binding substance, for example oxalic acid or sodium citrate, evaporating the solution to dryness in vacuo and then taking up with water, preferably alkaline.  The viscous product is specially applicable for glueing wood, the glue being rendered insoluble in water by heating the wood to which it has been applied.
Patent GB-273727-A (GB)
IPC: B23F5/20
Filed: 1927-06-29
Abstract: 273,727. Lees-Bradner Co., (Assignees of Schurr, C. H.). July 3, 1926, [Convention date]. Turning.-A machine for grinding gear teeth to involute form is provided with a grinding wheel having a peripheral profile similar to that of the tooth of an involute gear, special dressing mechanism being incorporated for maintaining the correct grinding wheel profile. The dressing mechanism comprises a base plate 59, Figs. 10 and 11, adjustably secured to a bracket 58 and formed integral with a cylinder rim 63 having the same radius as the base circle of the master gear and concentric therewith. A rolling bar 64 is connected to the rim by flexible band mechanism comprising two outer bands 67 and a central band 68. The bar may be rocked by a handle 75 and carries depending arms 76 provided with dressing diamonds 78, which, as the bar is rocked on the rim 63, describe involute curves and impart the required form to the grinding-wheel. During the movements of the arms 76, a third dressing diamond 79 mounted on an intermediate arm 80 is moved by lugs on arms 76 so as to swing about a shaft 81 and trim up the peripheral edge of the grinding-wheel. The operations of the machine may be electrically controlled, the dressing mechanism being actuated by an electric motor 189 which is automatically started at a predetermined part in the cycle of operations.
Patent GB-296511-A (GB)
Title: Improvements relating to radiator muffs for automobiles
IPC: F01P7/10
Filed: 1927-06-30
Abstract: 296,511. Ramsden, H., and Ramsdens (Halifax), Ltd. June 30, 1927. Radiators, motor-car and like.-Upper and lower roll-up flaps 1, 2 of a muff adapted to fit completely over the radiator are secured in the flat position by press-stud or similar fasteners 5, 6, and in the rolled position by separate V - shaped straps 8 attached to the body of the muff and fastened by press-studs 10, 11 at the apex 9. The edges of the muff around the flaps may be reinforced by metal strips 12A to which are secured bars 12 extending across the opening. The muff is closed around the filler cap opening 13 by flaps 17 at each side secured by fasteners 16, 18. The flaps may have flexible strips 7 at their edges to overlap the joint with the body part. Stiffeners 21 may be secured in the side of the muff and strips 22 pivoted to the stiffeners may be employed to secure the muff on the radiator. A single flap only may be used in place of the two flaps and be secured in the rolled position by the separate V-shaped strap described above. The muff may be extended over the starting handle.
Patent GB-1459328-A (GB)
Title: Electrical connection terminal arrays
IPC: H01R9/26
Filed: 1974-04-19
Abstract: 1459328 Terminal block CGEE ALSTHOM 19 April 1974 [20 April 1973] 17398/74 Heading H2E A removable element for a rail mounted array of terminal blocks comprises a flat double walled slightly resilient insulating box 1 holding two metal connecting plates 2, 3, each with two upstanding terminals 21, 22 and 31, 32, the plates being staggered relatively, and separated by a thin insulating plate 4. The separator is first assembled with the metal plates, retained by studs 41, 42 and 43, 44 engaging holes 23, 24 and 33, 34 in the respective plates. The assembly is inserted in the slot 11 in the top of the box, shoulders 49 on both faces of the separator at its top engaging the rim of the box. Projections 47 on one face of the separator and 48 on the other engage recesses inside the box walls, and dovetail projections 45, 46 engage corresponding recesses 16, 17 in the box edges. The terminals 21 &c. may have part of their length widened and perforated for soldering, leaving the end for wire-wrapping (Fig. 7, not shown). In an alternative embodiment (Figs. 4-6, not shown), each connector plate is divided into two coplanar parts, each part carrying in a cut-out in the separator on the centre plane of the box a "lyre" shaped female contact in the form of a nearly closed loop, adjacent to that on the other part, so that a two-pin male plug inserted through holes in the shoulder 49 can engage the contacts, allowing for disconnection or fusing of the circuit, or the connection of an external circuit element such as a lightning "conductor". One half of each plate then carries a double-tailed terminal, one perforated for soldering, the other elongate for wire wrapping.
Patent GB-256030-A (GB)
Title: Improvements in or relating to horizontal hydraulic baling presses
IPC: B30B9/30
Filed: 1925-07-07
Abstract: 256,030. Shaw & Sons (Salford), Ltd., and Shaw, P. July 7, 1925. Baling-presses.-In a baling-press comprising a vertical " trampler " press and an horizontal hydraulic press, material fed into a channel shaped tank d, Fig. 3, is pressed repeatedly by a rectangular weight member g suspended above it and controlled by an hydraulic jigger k, and an horizontal, hydraulic ram f thrusts the compressed material into an adjacent bale chamber where it receives a preliminary and a final compression, the member g being maintained in its lowest position with its surface level with the top door c of the chamber. The chamber has also side doors b<1>, b<2>, Fig. 2, and arrangements are made for controlling the locking of all the doors from one side of the chamber. To the free end of the side door b<2> is pivoted a bar n which projects behind the stillage l of the chamber and between slotted lugs o on the side door b<1>, a bolt p on the door b<1> being forced by an eccentric pin r connected to a hand wheel r<1> into a slot in the end of the bar n to lock both the doors. The top door c is locked by a sliding bolt u operated by an eccentric pin u<2> connected by bevel gearing u<4>, v<1> to a hand wheel w located near the hand wheel r'. Opening of the door is facilitated by connecting it to a lever x<1> provided with a balance weight x<2>. In a modification, the top door c is locked hydraulically. The door is connected by a link y<6>, Fig. 3, to a ram disposed in a cylinder y provided with an outlet valve y<11>. When the valve is open, the door may be raised, oil in the cylinder y being displaced into a reservoir y<12>, but when the valve is closed,. the oil locked in the cylinder prevents movement of the door.
Patent GB-152732-A (GB)
Title: Improvements in and relating to railway signal lamps
IPC: B61L9/02
Filed: 1919-07-11
Abstract: 152,732. Welch, W. H. I. July 11, 1919. Signal lanterns; lantern doors; reservoirs, attaching to lanterns.-A railway signal lamp is pro. vided at one side with outer and inner hinged or sliding doors 2, 3, the inner door being provided with a glazed flame - inspection aperture stepped to act as a flame gauge. The wick-winding spindle 7<a> passes through an aperture in the inner door, the passage of wind through the spindle aperture when the outer door is open being prevented by a disk 10 on a spring-pressed sleeve 9 mounted on a sleeve 8 fixed to the spindle 7a. The spindle 7a is held in position by a U-shaped wire body 12 which is slidable in guides 13 to permit the removal of the burner. The reflector 6<a> slides in guides 5a and is formed with a transverse opening 6b to enable the light to be seen from the back of the lamp. The oil-reservoir 4 is held in position by a spigot tube 1 and by the lower reflector guide 5<a>. Air for combustion is admitted through the perforated upper portion of the lamp case and, if necessary, an inlet at the bottom of the lamp case. The combustion products escape through a conical chimney 14 and a hinged perforated cap 15.
Patent GB-292998-A (GB)
Title: Improvements in spraying devices
IPC: B05B11/06
Filed: 1928-06-15
Abstract: 292,998. Soc. Hauser FrÞres. June 29, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Air-pressure sprayers.-A spraying device comprises an air pump 1 and a cylindrical liquid receptacle 3 mounted coaxially therewith. Connected to the air pump and extending into the receptacle 3 is a tube 5, extended by a tube 6 of smaller diameter passing through the front of the receptacle and opening above a tube 7 which is immersed in the liquid. A shield 8 soldered to the front of the apparatus collects drip. The receptacle 3 is provided with a filling plug and abase 9.
Patent GB-725626-A (GB)
Title: Improvements in and relating to a continuously operating centrifugal machine
Inventor: WEZEL HERMAN JAN VAN
IPC: B04B11/02
Filed: 1953-06-24
Abstract: 725,626. Centrifugal separators. KONINKLIJKE MACHINENFABRIEK GEB. STORK & CO. N.V. June 24, 1953, No. 17457/53. Class 23. A centrifuge comprises a rotary drum 2 and a differentially rotating, oval-shaped feed chamber 12 which carries a scraper device provided with one or more nozzles for dis. charging a compressed medium for blowing the solid particles scraped off the wall of the drum towards the discharge end thereof. The drum 2 has a series of spaced rings 4 secured thereto by ribs 5. Two diametrically opposed boxes 14 are secured to the drum 12 at its largest diameter for feeding the mass to be treated into the screen drum along the whole of its height. A box 16 is disposed adajcent each box 14 and carries a scraper 18 provided with nozzle forming guide blades 19. A cylinder 20 is also secured to the drum 12 and carries diametrically opposed sets of sprinklers 21 for supplying washing or treating liquid. The shaft 1 is supported from a bearing block 24 which is mounted in a rubber buffer 25 and supports the gear-box 26. The mass to be treated is fed through a shoot 22 into the drum 12 and thence through the boxes 14 to the drum 2 where it is deposited on the screen walls until removed by the scrapers 18. Compressed air is fed through conduits 31, 32 to space 33 communicating with the guide blades 19 and forces the solids removed by the scrapers through apertures 36, 37 into a funnel 39. The separated liquid passes through the screen wall and flows over a rim 6 into a gutter 7. The centrifuge may be horizontally mounted. The scraper may constitute a plate-like member having a nozzle secured thereto.
Patent GB-408471-A (GB)
Title: Improvements in or relating to sliding doors or gates
IPC: E05F15/14
Filed: 1933-06-19
Abstract: 408,471. Door-operating mechanism. BARDET, A., 84, Rue Oberkampf, Paris. June 19, 1933, No. 17475. Convention date, June 29, 1932. [Class 65 (i).] A pair of sliding doors, or any other movable members having opposed movements, are connected by a shaft, having two reversible threads, or groups of threads, of opposite hands engaging with members rotatable on spindles fixed to the respective doors, these members acting as nuts. As shown applied to two doors 11 supported on tracks by members 23, the shaft has a short plain central portion working in a bearing 14, and on each side of this is a portion 17 formed of a pair of metallic tapes wound helically to form a hollow double-threaded screw. Each end of the shaft is supported by a thrust-screw bearing 30, which may be replaced by a ball thrust bearing. Each member 23 has a bracket 21 embracing the shaft, and in this bracket is fixed a spindle 27 carrying two loose rollers 28 which engage between the two tapes of the threaded part 17 of the shaft ; rotation of the shaft thus causes longitudinal movement of the doors, and the angle of the thread is such that movement of either door causes rotation of the shaft and thus produces corresponding movement of the other door. Each roller 28 may be replaced by one or more ball-like members mounted on the spindle, and the rollers may be carried on single or double ball-bearings.
Patent GB-1167836-A (GB)
Title: Improvements in or relating to a Process for the Production of Clad Metal Sheets.
IPC: B23K20/18
Filed: 1968-04-11
Abstract: 1,167,836. Making composite sheets; jointing by rolling. VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE A.G. 11 April, 1968 [13 April, 1967], No. 17491/68. Heading B3M. A pair of clad metal sheets are produced by preparing a cladding sandwich having outer base material layers and inner cladding layers separated by a stop weld material, and then hot rolling, descaling, cold rolling, and annealing the sandwich, and finally separating it into the two sheets. In an example, the sandwich includes base layers of steel and cladding layers of chromiumnickel steel, with zirconium oxide acting as a stop-weld between the adjacent cladding layers. The sandwich is welded at its edges and evacuated before rolling. A final skin-pass may precede trimming and separation of the sheets.
Patent GB-1448083-A (GB)
Title: Elec-rical contacts and electrical connectors
IPC: H01R24/60
Filed: 1975-04-29
Abstract: 1448083 Two-part couplings AMP CORP 29 April 1975 [25 June 1974] 17654/75 Heading H2E An electrical contact 1 comprises a crimping ferrule 2, a channel (preferably "V") shaped body, a resilient cantilever contact arm 9 connected to one wall of the channel by a bridge portion 4 the end of the arm being reversely bent under tabs 13, 14 which restrict the movement of the arm. The contact may be stamped from a single sheet of electrically conductive material. A plurality of the contacts may be inserted in elongate male and female housings 31  and 30 of insulating material, possibly for use with flat cables (Fig. 1, not shown). In connecting the contact to a flat cable, the teeth 21 and 22 pierce the cable insulation either side of the conductor and then are bent to form a crimp connection with the conductor.