baber/WOPTO huggingface dataset:
Patent GB-784854-A (GB)
Title: Improvements in and relating to analogue computers
Inventor: BARBER ERNEST EDWARD
IPC: G06G7/16
Filed: 1953-12-04
Abstract: 784,854. Electric analogue calculating systems. AIR TRAINERS LINK, Ltd., [formerly AIR TRAINERS, Ltd.]. Dec. 3, 1954 [Dec. 4, 1953], No. 33840/53. Class 37. An electric analogue computer determining the voltage analgue of the instantaneous product of two or more variables with reduced time delay error, comprises a number of potentiometers which are respectively energized by voltages proportional to the rates of change of the individual variables and adjusted by corresponding electromechanical servo-systems responsive to their respective absolute values, so that an electrical summing device receives voltages representing the respective products of the rate of change of each input variable in turn and the remaining input variables to produce an output voltage representing the rate of change of the product of all the variables, which is electrically integrated to produce the required result. In Fig. 1, voltages representing the rates of change V1 and V2 of variables V1, V2, derived by known means from voltages representing such variables, energize potentiometers 1, 2 adjusted by servo-systems 5, 6 in response to the latter input values to develop voltages proportional to V2 V1 and V1 V2, which are added in amplifier 7 and integrated by circuit 8 (which may be a Miller integrator) to a voltage representing the product y=V1V2. In a modification (Fig. 2, not shown) a similar apparatus is arranged to receive three voltages representing rates of change V 1, V2, V3 of inputs V1, V2, V3; voltages representing the latter operating servo-systems to adjust cascaded potentiometers fed from voltages V1, V2, V3 to produce voltages which are combined and amplified to represent the equations y=V1 V2V3+ V2V3 V1  +V3 V1 V2 which integrated gives a voltage proportional to the product y=V1 V2 V3. In a further modification (Fig. 3) for dividing variable V1 by V2, potentiometers respectively energized by voltages proportional to V1 and ( - V2) are adjusted by servo-systems responsive to voltages proportional to V2 and V1 to develop a combined voltage representing (V2 V1 - VI V2) at the input of an amplifier 12, whose output is applied to a square law potentiometer P adjusted by the V2 potentiometer servo-system to feed back a voltage representing V2<SP>2</SP> to the input whereby the amplifier output voltage is proportional to V1 which after integration is proportional to -. V2 Cumulative errors arising after prolonged operation may be eliminated (Fig. 4, not shown) by developing by known means a further voltage representing the result of the computation without attention to time delay, which is algebraically subtracted from the output of the computing device; the error voltage being applied as a correction to the input of the integrator in opposition to the computation voltage input.
Patent GB-387465-A (GB)
Title: Improvements in fur cutting machines
IPC: C14B1/24
Filed: 1931-12-07
Abstract: 387,465. Fur-cutting machines. CHAPAL DONNER CORPORATION, 29, Clover Street, Newark, New Jersey, U.S.A. Dec. 7, 1931, No. 33931. Convention date, Jan. 7. [Class 76.] A machine for severing fur from pelts, which are at the same time cut into strips, comprises feed rolls for the pelt, auxiliary reciprocable supporting fingers extending beyond the feed rolls towards the cutting point and an auxiliary feed device to engage the pelt upheld by the supporting fingers. The rotary cutting knife 9 is of known type and co-operates with a fixed blade 13. The pelts are fed to the knife over a plate 28 by positively driven feed rolls 19, 22, the severed fur passing down a shoot 24 and the strips of skin down a shoot 15. Two sets of fingers 26, 27 arranged alternately so as to be oppositely reciprocated are mounted so as to pass through slots provided in the lower feed roll 19. These fingers are reciprocated by the engagement of lugs 33, 36 depending therefrom with the flanges of channel bars 32, 35 against which they are held by compression springs. The channel bars are mounted on bars 30, 31 connected at each end to arms 40,46. The arms 40, 46 have forked extremities which embrace a cam shaft 39 on which are cams 42, 48 engaging roller studs 43, 49 on the arms 40, 46, the studs being held up to their cams by springs 45, 51. A number of auxiliary feed wheels 56 are arranged on a shaft 55 carried by arms 54, the projections of these feed wheels being accommodated in slots in the upper roller 22. The fixed knife is formed with rib-like projections 52 projecting towards the work, which aid in supporting the pelt right up to the cutting point.
Patent GB-509145-A (GB)
Title: Improvements in automatic hydraulic adjustors for taking up wear or clearance in internal combustion engine taffets, brakes or other moving machine parts
IPC: F16D65/72
Filed: 1937-12-08
Abstract: 509,145. Compensating for wear in brakes. HODGSON, E. F. Dec. 8, 1937, No. 33959. [Classes 12 (i) and 103 (i)] [Also in Groups XXVII and XXIV] A hydraulic device for automatically taking up wear or clearance in internal-combustion engine tappets, or in brakes, bearings, or other moving machine parts, comprises a chamber divided by a separator plate S into two compartments, one, PC, containing a spring-pressed plunger PL, and the other a plunger P which is connected to, or takes an abutment on, the part to be adjusted, the flow of liquid between the two compartments being controlled by a valve V. Liquid is introduced by means of a nipple N with a check valve. The valve V may be a one-way valve, or, as shown, a two-way valve formed by a plug moving through a hole in the plate S and having a central flat or reduced part, which is normally kept in a central position in the hole by springs, for example, bowed spring discs SP. In modifications, the two plungers may be arranged side-by-side instead of coaxially, or they may be of annular form. Fig. 7 shows a delayed-action valve V which does not allow liquid to pass until the valve has opened a certain amount. This valve comprises a plate PF with a tubular stem H having a lateral hole P for the passage of the liquid. In a modified delayed-action device, the valve is solid and slides as a piston in a cylinder provided with the lateral holes for passage of liquid. Figs. 4 and 6 show how the invention is applied to brake mechanism comprising shoes SH actuated by a cam C, the heel pieces HP of the shoes being arranged in connection with one hydraulic plunger LL, and the abutments of the adjusting-rods R in connection with another hydraulic plunger LP, these two plungers being arranged at opposite sides of the spring-pressed feed plunger FP which communicates therewith through a non- return valve V2 and a delayed-action valve V respectively. The plungers LP and LLP are formed with wedge-shaped ends W, W1 which engage the heel pieces HP and the rods R respectively. Fig. 3 shows the invention applied between a fixed collar C and a thrust bearing B on a rotating shaft S, the two plungers P and PL being of annular form and operating in annular chambers L and PC connected by a valve V, a bowed spring SP acting on the plunger PL.
Patent GB-173749-A (GB)
Title: Improvements in pneumatic hubs
IPC: B60B9/18
Filed: 1921-12-16
Abstract: 173,749. Loutzkoy, B. von. Jan. 5, 1921, [Convention date]. Spring wheels.-In wheels of the type in which the spoke-ring carries piston members k working in cylinders z radially disposed around the hub and provided with ports 8 which are alternately covered and uncovered for the admission and compressing of air during the rotation of the wheel, the cylinders are connected at the bottom by small openings a, which are of such a size as to prevent the creation of a vacuum in any of the cylinders and to equalize the action in the cylinders while retaining the cushioning effect of the compressed air.
Patent GB-1316392-A (GB)
Title: Method of damping contact spring
IPC: G04C3/06
Filed: 1971-07-20
Abstract: 1316392 Electric watches TIMEX CORP 20 July 1971 [20 July 1970] 34068/71 Heading G3T [Also in Division H1] A contact spring assembly for a timepiece including an electromagnetically-maintained balance 10 carrying a coil 14 comprises a base member 22 of insulating material, a conductive contact-supporting member 23 embedded in base 22 and extending outwardly therefrom, a contact spring 28 having a free end and being mounted to the member 23, and a damping material 32 within which a portion of the spring 28 is embedded to minimize the vibrations thereof. As shown the free end of the spring 28 co-operates with a pin 18 and jewel 19 and its other end is soldered to an upturned end 27 of extension 26 of member 23. The base 22 is of plastics material such as polyester fibre-filled diallyl ortho-phthalate resin and a protruding portion 29 is slotted at 31 to hold the damping material 32, for example, a urethane plastics material, which is preferably deposited as a liquid and then cured. A U-shaped extension of member 26, Fig. 3 (not shown) may replace portion 29 or the damping material may be coated around the end of spring 28 in the region of 27 without other support.
Patent GB-1272680-A (GB)
Title: Pump for injecting a secondary fluid into a primary fluid
IPC: F04B9/107
Filed: 1969-07-07
Abstract: 1,272,680. Mixing fluids inflow. DELAVAN MFG. CO. 7 July, 1969 [10 Sept., 1968], No. 34086/69. Heading B1C. [Also in Division F1] A pump wherein a liquid detergent is mixed with water has a piston 10 with heads 16 engaging with sleeves 13 fixed in a cylinder 12, reciprocation of the piston effecting displacement of water between connections 2, 6 by way of chambers 27, 28 and passages 4, 8 containing non-return valves 22..25. Detergent enters the chamber 27 through a passage a passage 90, a chamber 52 and a passage with portions 46 to 51 controlled by non-return valves with spring-loaded bodies 96, 102 and by an adjustable needle 116. During upward movement of the piston 10 a spring-loaded piston-member 54 is raised by the pressure of water in the chamber 27 and thereby sucks detergent into the chamber 52 past the body 96. Downward movement of the member 54 in response to similar movement of the piston 10 expels the detergent from the chamber 52 into the chamber 27 past the body 102. An adjustable plug 72 limits the upward movement of the member 54. A plate 40 may be replaced by apparatus identical to that above the chamber 27 so as to mix detergent with the water in the chamber 28.
Patent GB-1308871-A (GB)
Title: Process for corss-linking photographic gelatine layers
IPC: C07D303/16
Filed: 1971-07-21
Abstract: 1308871 Oxirane derivatives AGFA GEVAERT AG 21 July 1971 [25 July 1970] 34180/71 Heading C2C [Also in Divisions C3 and G2] Seventeen compounds falling within the general formula are described, wherein X 1  is a methylene, ethylene, 1 : 3-butylene or -CH 2 CH(C 2 H 5 )CH(C 3 H 7 )- radical and X 2  is a hexamethylene, toluylene, triisopropylphenylene, diphenylyl methane, diphenylyldimethylmethane, xylylene, or a divalent isophorone radical. The compounds are made by reacting glycidol or a glycidol ether of the type glycidyl-O-X 1 -OH with a diisocyanate of the formula Thus diphenylmethane-4 : 4-diisocyanate, tolylene - 2 : 4 - diisocyanate, isophorone diisocyanate and hexamethylene diisocyanate are each reacted with glycidol, and tolylene diisocyanate is reacted with ethylene glycol monoglycidyl ether.
Patent GB-1169676-A (GB)
Title: Improvements in Filters
IPC: B01D29/01
Filed: 1968-07-18
Abstract: 1,169,676. Aquarium filter. T. F. H. PUBLICATIONS Inc. 18 July, 1968 [13 Oct., 1967], No. 34266/68. Heading BID. An aquarium filter incorporating an air lift pump, with air delivery pipe 44 and air-water outlet 46, has filter media 72, 74 supported by removable tray 30 in housing 22 and retained by slotted cap 48, which has two portions 50 and 56 at different levels and may be inserted in the housing either way up. In Fig. 3, however well filled with media the housing is, raised portion 50 will remain clear of the medium 74, so its slots 64, through which water enters the filter, will riot clog. In Fig. 6 (not shown), portion 50 serves as a preliminary trap which collects solid matter above and upstream of the filter media and may be withdrawn separately from the housing and washed clean. When the whole filter is removed from the aquarium tank, the media may be squeezed dry before removal by lifting tray 30 by means of pipes 44, 46. Medium 72 is charcoal, and medium 74 is glass wool or synthetic fibre.
Patent GB-300989-A (GB)
Title: Improvements in or relating to valves more particularly for fuel pumps
IPC: F02M59/46
Filed: 1928-11-21
Abstract: 300,989. Jendrassik, G., and Ganz & Co.-Danubius Machine, Railway Carriage Manufacturing & Ship Building Co., Ltd. Nov. 22, 1927, [Convention date]. Check-lift valves. - A non- return valve particularly adapted for use on the fuel pumps of internal combustion engines is provided with a. detachable flat seat. In the form shown in the Fig. the valve seat is formed on a member 2 having no parts extending above the seat and held in position by a perforated ferrule 5 secured by a screwed plug 4 which also secures the outlet pipe. The valve member 3 has a depending guide arranged to allow minimum play in the immediate vicinity of the seat. The valve is loaded by a tension spring 6 arranged between an eye on the guide and a similar eye carried by an enclosing tube 8. The guide member may be detachably secured to a stem formed on the valve member and provided with transverse and longitudinal passages to permit the passage of fluid. In a further modification the valve member is formed with an upstanding tubular guide and is loaded by a compression spring. Reference has been directed by the Comptroller to Specification 23378/95, [Class 102, Pumps &c.].
Patent GB-877475-A (GB)
Title: Concealed slide fastener and cloth article containing the same
IPC: A44B19/26
Filed: 1959-10-09
Abstract: 877,475. Slide fasteners; sliders. Mc- NAMARA, A. J. Oct. 9, 1959 [Nov. 3, 1958], No. 34311/59. Class 44. A slider for a slide fastener comprises a diamond 38, a back 47, and flans'32, a longitudinal slot on the top of the diamond extending longitudinally along the axis of the fastener, and an elongated thin pull tab 40 mounted on the diamond in the slot and having a thickness less than that of the slot so that it is pivotable in the slot. The disposition of the slider relative to the slide fastener is shown in Fig. 1; the pull tab 40 may have a detent 46 which locks the fastener when the pull tab is pivoted to a position below cloth members 50, 52 to which fastener element tapes are stitched. In other embodiments, Figs. 5-10 (not shown) the pull tab is respectively curved along its length and formed by a length of wire having a loop at each end.
Patent GB-637301-A (GB)
Title: A take-up motion for looms
IPC: D03D49/20
Filed: 1946-11-20
Abstract: 637,301. Take-up motion for looms. HRDINA, R. Nov. 20, 1946, No. 34396. Convention date, Dec. 13, 1945. [Class 142 (ii)], A variable speed take-up motion comprises a change speed gear housed in the sand roller and wherein axial movement of a shaft effects the change of speed. The sand roller 3 is rotated, through the change speed gear, by ratchet wheels 4, 5 and pawls 6, 7. The pawls 6, 7 are actuated by the swing of the batten and are selectively brought into action with either wheel 4 or 5. The speed change gear comprises a shaft 8, graduated according to the number of weft threads per unit length of material, and which is moved axially to engage, by means of a spring- pressed pawl 10, one of a series of stepped wheels 12 ... 19. These wheels are in constant mesh with a further series of stepped wheels 12<SP>1</SP> ... 19<SP>1</SP> on a shaft 20 which is mounted in a fixed casing 21. A wheel 23 keyed on the shaft 20 meshes with teeth 24 of a driven member 25 freely mounted on the shaft 8. Two planet wheels 26, 28, mounted on a pin projecting from the member 25, rotate as a unit. The wheel 26 meshes with teeth 27 on the inner side of the fixed casing 21 and thereby rotates the wheel 28 which causes the outer casing 30,. connected with the sand roller, to revolve. The casing 30 forms a container for lubricating oil in which the wheels on the shaft 20 are immersed.
Patent GB-915832-A (GB)
Title: Method and apparatus for forming pressure vessels
Inventor: ALECK BENJAMIN JACOB
IPC: B21D51/24
Filed: 1961-09-26
Abstract: 915,832. Making pressure vessels; working at specified temperatures; stamping. ARDEPORTLAND Inc. Sept. 26, 1961, No. 34483/61. Classes 83 (2) and 83 (4). A method of forming a high tensile strength vessel of a predetermined size comprises the steps of forming a vessel blank of a smaller size from workhardenable material, cooling the blank to sub-zero temperature and applying a pressure to the interior of the blank to stretch it to its predetermined size. A fabricated vessel 10 of a uniform wall thickness is made from austenitic steel, e.g. stainless steel, connected to a coolant supply pipe 40 and loaded into a hollow die 14 disposed in a cold chamber 16 of an apparatus 12 comprising a cold chest 18 having an access door 21, coiling coils 22, associated control valves, temperature gauges, vents and a pump 38. Coolant, e.g. liquid nitrogen is circulated through the cooling coils 22 to reduce the temperature within the chamber 16 to - 320‹ F. and the pump 38 energized to supply liquid nitrogen at 2000 to 2500 p.s.i. into the vessel 10 causing it to stretch beyond its elastic limit and to take up the form of the interior wall of the die 14. Removal of the pressure allows slight shrinkage of the vessel to take place which facilitates its removal from the die. A pair of open-ended vessels may be obtained by cutting in half a closed vessel produced by the above method. In a first modification a vessel 10<SP>11</SP> having a thickened wall portion 72 is expanded by a multi-armed jack 74 which is operated, after the vessel has been positioned in the die 14 and cooled, to stretch the thickened portion prior to the stretching of the thinner portion as above. The vessel may be cut in half and each thickened portion internally threaded. In a second modification an open-ended vessel 10<SP>111</SP> may be produced by expanding the thicker portions as before or by using a tapered mandrel 78 and followed by expanding the thinner section. If the mandrel is used as a seal the coolant is pumped into the spherical portion through the mandrel, alternatively a pressure seal may be made using a plate and an 0-ring.
Patent GB-1326707-A (GB)
Title: Refuse-ramming apparatus with a transportable refuse bin
IPC: B30B9/30
Filed: 1972-07-25
Abstract: 1326707 Refuse-ramming apparatus J OCHSNER & CIE AG 25 July 1972 [14 Sept 1971] 34646/72 Heading B8C Refuse-ramming apparatus comprises a transportable bin 8 of rectangular cross-section, a gantry-type frame 1 into which the bin can be introduced, a carriage 25 displaceable on a yoke 4, and a rammer plate 32 which is vertically movable on the carriage, and has a dimension b longitudinally of the bin which is less than half the length of the bin, and a dimension in the transverse direction equal, with clearance, to the width of the bin. The carriage 25 is mounted between a pair of spaced beams 24 forming the yoke and is manually moved to permit the plate 32 to move lengthwise of the bin. The plate may be moved downwardly by mechanical means or by an hydraulic ram 30, fluid flow to the ram being reversed when the fluid pressure exceeds a set pressure. A limit switch stops the fluid pump when the plate reaches its top position. If the bin has sprung wheels 22 it is supported, during the ramming, off the ground either by means on the bin or by pivoted plates 10 having transverse arms 15 which are engageable by extensions of levers 18 to pivot the plates about pivots 11.
Patent GB-772547-A (GB)
Title: Improvements in or relating to thermionic valve relays
Inventor: REHAHN JENS PETER
IPC: H03K17/288
Filed: 1954-11-30
Abstract: 772,547. Multi-stable state circuits. VEB FUNKWERK KOPENICK. Nov. 30, 1954, No. 34727/54. Class 40(6) A bi-stable-state trigger circuit comprises two electric discharge tubes the triggering pulses being applied to a further tube which is connected in parallel with a capacitor between the grid and cathode of one of the tubes of the trigger pair the cathode of which is positively biased. The Figure shows a bi-stable trigger circuit comprising reciprocally coupled tubes 2 and 3 the cathode of tube 2 being biased positively so that in one stable position tube 2 is cutoff and tube 3 conductive. Trigger input tube 4 is also conductive in the stand-by position. When an applied trigger pulse renders tube 4 non-conductive the rise in voltage at its anode causes tube 2 to be rendered conductive and tube 3 to be cutoff, the trigger-pair reverting to its first stable state when a further trigger pulse cuts off tube 4. An output pulse may be derived at lead 16 and may act as a trigger pulse for a further trigger pair.
Patent GB-1048747-A (GB)
Title: Apparatus for sampling and analysing a complex pattern
Inventor: GRIMWOOD MICHAEL RUSH
IPC: G10L15/02
Filed: 1964-08-26
Abstract: 1,048,747. Speech recognition apparatus. STANDARD TELEPHONES & CABLES Ltd. Aug. 26, 1964, No. 34909/64. Heading G4R. In a speech recognition apparatus the envelope of the speech signal is differentiated to obtain pulses for sampling the speech signal. The speech signal 1, Fig. 2 (not shown), is amplified at 2, Fig. 1 (not shown), and applied to a normalizer 4, controlled by a threshold device 5 so that it produces no output until the input signal exceeds a given level. The output 6, has a constant mean amplitude over a period of time but over a short period is proportional to the input. Amplifier 7 produces an output to a detector 9 which gives an output 10 from which L-P filter 11 extracts the envelope 12. Positive and negative differentiators 13, 14 produce pulses at the start and end of the leading and trailing slopes of the envelope and these signals called " mode 1-mode 4 " appear on respective outputs of triggers 15 and 16. In circuit 17 combinations of the pulses are selected by switching. If all are selected the output is as shown in the bottom line of Fig. 2. Control circuit 18 activates a column wire 19 when the first pulse is received and successive column wires 20 as successive pulses arrive. When wire 19 is energized, an associated series of gates or switches are enabled to sample signals representing various features of the speech signal. The sampling rate is thereby determined by the rate of speaking. The features identified in each sampling period are recorded in the form of a visual display. The interval between successive sampling pulses is timed by counting pulses from clock 21 and the count displayed at 22. These counts give what is termed " word shape." A Schmitt trigger 23 connected to the detector 9 responds to periods of silence, the occurrence of which is indicated at 24. Other features derived from frequency band signals provided by filters 25 are sampled and displayed at 28, 30 and 33.
Patent GB-990721-A (GB)
Title: Vitamin compositions and the manufacture thereof
IPC: A61K9/00
Filed: 1963-09-05
Abstract: The invention comprises a vitamin composition in the form of a clear solution suitable for injection, which solution may be mixed with vegetable oils or with the feed or drinking water of poultry and farm animals, and which consists of (1) up to 70% by weight of Vitamin A alcohol, Vitamin D or Vitamin E or a mixture thereof, (2) at least 0,5% by weight of a polyethylene glycol ester of a fatty acid having from 16 to 18 carbon atoms or a polyoxyethylenesorbitan ester of a fatty acid having from 16 to 18 carbon atoms as emulsifying agent, (3) from 1,0 to 10% by weight of benzyl alcohol, (4) the remainder consisting of a liquid glyceryl triester of a saturated fatty acid having a carbon chain length of from 6 to 12 atoms or of a mixture of saturated fatty acids, the predominant acids of which have carbon chain lengths of from 6 to 12 atoms, or a mixture of said triesters and, optionally except where Vitamin E is absent, (5) an edible antioxidant.