baber/WOPTO huggingface dataset:
Patent GB-400948-A (GB)
Title: Improvements in and relating to means for supporting reinforcing mats in concrete roads, buildings and like structures
IPC: E04C5/18
Filed: 1932-05-02
Abstract: 400,948. Reinforced concrete. DUNKER, J. H., Mole House, Esher Road, Walton-on-Thames. May 2, 1932, No. 12617. [Class 20 (iv).] A supporting member for positioning reinforcing mats or bars within concrete structures comprises a base member having an upstanding projection, the upper end of which is provided with a fork adapted to engage by snap action the portion of the mesh or bar to be supported. The fork is adapted to be opened out in the process of inserting the mesh or bar, but tends to return to its original position after the mesh or bar has been inserted. As shown in Fig. 1, the member comprises a pair of strip metal members 7, 8 having their lower ends 9, 10 bent outwardly to provide a base member and with their main parts connected by rivets, bolts, welding, &c. The upper ends of the strips are opened out to provide the fork 12. In a modification, the support is made from a single strip 19, Fig. 3, having its upper end divided to provide tbree parts, of which two parts 22 are bent in opposite direction to the other part 23 in order to provide a fork. The upper edges of the fork are bent back as at 24, 25 to facilitate entry of the reinforcement into the fork, and also to permit, where desired, a securing wire to be wrapped around the ends of the fork. The securing wire may, alternatively, be passed through holes in the supporting member or completely around such member. The forked members may engage only partially a reinforcing bar.
Patent GB-688399-A (GB)
Title: Improvements relating to heat-operated electric switches
IPC: H01H37/76
Filed: 1950-05-19
Abstract: 688,399. Thermal switches. DRAGE, G. E. May 16, 1951 [May 19, 1950], No. 12668/50. Class 38 (v) A thermal switch, especially for use in fire alarm systems, comprises an electrically-conducting casing 5, an insulating member 8 within the casing, a switch member 14 slidable in the insulating member and biased by a spring 16 towards the end of the casing, and an insulating element 17 interposed between the end 15 of the switch member and a stop member 21 held on the casing 5 by a fusible mass 22. When the casing is heated to a predetermined temperature, the mass fuses, releasing the stop member 21 so allowing the spring to force the bevelled end 15 of the switch member into engagement with the casing 5, the insulating element 17 being pushed through an aperture in the casing and a circuit being completed from terminal 24 through connection 26, member 14 and the casing 5 to a second terminal 28.
Patent GB-566433-A (GB)
Title: Improvements in pipe or tube couplings
IPC: F16L37/133
Filed: 1943-08-06
Abstract: 566,433. Pipe couplings. UNITED STATES RUBBER CO. Aug. 6, 1943, No. 12697. Convention date, Oct. 15, 1942. [Class 99 (i)] The interfitting coupling members 10, 11 of fabric tubes 21 are secured together by blade springs 14 carried by the member 10, extending through the member 11 and having out-turned lips 17 engaging the end face 18 of the member 11. The face 19 on the lip is at such an angle (1-8 degrees) to the 'surface 18 that the coupling will not be released by an axial pull alone, but will be released by a combination of axial pull and relative rotation of the coupling members. The lip 17 is of rounded V shape and a bead 20 extends thetefrom down the blade.
Patent GB-568055-A (GB)
Title: Improvements in and relating to pressure relief devices
IPC: H01F27/40
Filed: 1943-08-06
Abstract: 568,055. Pressure-relieving devices. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 6, 1943, No. 12701. Convention date, Aug. 11, 1942. [Class 135] A pressure-relief device for an enclosed casing comprises a plunger 16 normally held in a retracted position by a shaft 23, but on rotation of the shaft, the plunger is released and pushed upwards by a spring 30 so that a sharp point 17 carried by the plunger will rupture a frangible diaphragm of tempered glass. The controlling member is an evacuated bellows 42 which is distended by an internal spring, but when the pressure in the casing becomes abnormal, the bellows collapses and a rod 41 connected thereto rises and, by means of a link 44, rotates a shaft 33. The end 36 of this shaft is half-round in section and supports the end of an arm 34 secured to a shaft 23 which is formed with a cut-away portion 27 pressing on a ledge 26 in the plunger 16 and holding the latter in the retracted position. As shaft 33 rotates, it releases arm 34 which drops and rotates shaft 23, the cut-away portion 27 thereupon releasing the plunger 16 to allow the latter to rise and rupture the diaphragm. A spring 45 is interposed between the bellows 42 and the arm 44, and the pressure at which the device operates is determined by the setting of nuts 55 which position the link 44. The various parts of the device are carried by a bracket 18 bolted inside the casing.
Patent GB-396180-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M10/48
Filed: 1932-05-03
Abstract: 396,180. Batteries. CHLORIDE ELECTRICAL STORAGE CO., Ltd. and BROWNE, A. W., Clifton Junction, near Manchester. May 3, 1932, No. 12721. [Class 53.] An accumulator is provided with specific gravity balls d contained in a chamber c which is supported on a ledge e formed by cut-away portions of the plates. The chamber is open at the top and is provided with a porous rear wall h of wood, porous ebonite, &c. A bar i keeps the, balls beneath the surface of the electrolyte.
Patent GB-346184-A (GB)
Title: Improvements in or relating to impulse senders for automatic telephone systems or the like
IPC: H04M1/23
Filed: 1930-04-25
Abstract: 346,184. Impulse transmitters. COVENTRY AUTOMATIC TELEPHONES. Ltd. and LYALL, A., of General Electric Co., Stoke, Coventry. April 25, 1930, No. 12773. [Class 40 (iv).] In impulse transmitters of the finger-hold type, the part of the finger stop projecting beneath the finger plate is reinforced to withstand shocks. In Fig. 2 the bent limb 7 acts as a buttress for the projecting part 8, while in Fig. 3 the flat part 10 is riveted to the stop. The part 10 may alternatively be attached by the screws which secure the stop to the body of the instrument.
Patent GB-1215065-A (GB)
Title: Method for correcting the milling-cutter radius in numerical path controls and circuit arrangement therefor
IPC: G05B19/4103
Filed: 1968-03-15
Abstract: 1,215,065. 065. Programmed control of machine tools. LICENTIA PATENT VERWALTUNGS G.m.b.H. March 15, 1968 [March 18, 1967], No.12796/68. Heading G3N. The correction of path points for milling-cutter radius in numerical path controls equipped with a digital internal interpolator is effected before the actual interpolation of the tool path by determining the path angle and correction values in a circular interpolation from the programmed path data and the manually preset milling-cutter radius.  As shown, for a linear interpolation, the programmed position values x 1 -x 0 , y 1 -y 0 , the manuallyset milling cutter radius R and the clearing instruction O are stored in input stores 1-4. At the  beginning of a calculation, the switches 5, 6 are set to I and the contents of stores 1, 2 transferred to the registers of digital integrators 7, 8 and a forwards-backwards counter 9, for holding the count of the angular steps of an interpolation, is set to zero. The contents of the integrators is then interrogated and if the contents of either integrator 7, or 8 is zero the switches 5, 6 are brought to position III or II respectively and the milling cutter radius directly written into the registers of integrators 8 or 7 respectively and the instructions for movement along one axis only issued to the machine. The milling cutter radius is added, or subtracted, according to whether the milling is internal or external. If the contents of the register of neither integrator is equal to zero then the path is inclined to the x, y axes and the path angle is calculated by changing the contents of each register by an amount dependent on the value of an angular step # # and the contents of the register of the other integrator. The calculation continues until the contents of the register of integrator 8 is equal to zero, the number of steps being counted in the counter. The switches 5, 6 are then moved to position II and contents of the register of the integrator 7 replaced by the milling cutter radius R and the contents of the register of the integrator 8 brought to zero. The sine and cosine correction correcting values for the cutter radius are then calculated by a circular interpolation during which the counter 9 counts back to zero. The correction values are then held in the registers of the integrators 7, 8 and the starting and end-point of the corrected path obtained. The interpolation of the milling-cutter path between the two path points is then effected in the following calculation step.
Patent GB-1384186-A (GB)
Title: Adhesive splicing element and method of splicing
IPC: G03D15/04
Filed: 1973-03-16
Abstract: 1384186 Adhesive strips HAMA HAMAPHOT KG HANKE & THOMAS 16 March 1973 12809/73 Heading B2E [Also in Divisions G2 and G5] An adhesive splicing element for joining abutted ends of cine film or recording tape includes a tab 5 perforated at 14 along its centre line and having a pressure sensitive adhesive layer on one side covered by releasable backing strips 8, 9 folded at 10, 11 along the centre line of the tab 5 and extending outwards as shown. The strips 8, 9 may be perforated at 15, 16 and recessed at 19, 20. The differently shaped perforations 15, 16 and recesses 19, 20 are for gripping by a splicing apparatus.
Patent GB-528519-A (GB)
Title: Improvements in and relating to devices for controlling the flow of liquids
IPC: B64C11/42
Filed: 1939-04-28
Abstract: 528,519. Fluid-actuated valves. ACROTORQUE CO. April 28, 1939, No. 12815. Convention date, Aug. 27, 1938. [Class 135] A valve 14, for controlling the flow of liquid from a supply at 6 to a mechanism to be actuated connected at 7, is opened by a hand lever 29 and latched open by a latch 35, and is unlatched and closed automatically by the liquid which has passed the valve, the latter in the form shown lifting a piston 40 at a predetermined pressure which by its rod 41 disengages the latch, and a discharge passage 8, closed by the valve 23 before the valve 14 is opened, and opened when the valve is unlatched, is provided for the liquid which has passed the valve. The seat 21 of the valve 23 is integral with the main valve 14, and the main valve, handle, latch and piston are all spring-biassed to their normal positions shown, the full surface of the latter not being acted upon by the liquid until the pressure on the exposed part of the ball 47 has risen sufficiently to lift it off its seat, any leakage past the ball before this pressure is reached being drained off by a passage 48. The device may be used for controlling the blades of variable pitch propellers, and the greater working pressure usually required for unfeathering may be obtained by keeping the handle 29 depressed after the latch 35 has been disengaged. The Specification as open to inspection under Sect. 91 comprises also a modification in which the piston 40 is arranged with a clearance e.g. 20/1000ths of an inch within the conduit leading to the outlet 7 so that it is moved according to the rate of flow of liquid past the valve and a catch on the end of the rod 41 disengages the latch 35 on the return stroke this is when the flow has ceased. This subjectmatter does not appear in the Specification as accepted.
Patent GB-586734-A (GB)
Title: Improvements in signal transmission systems
IPC: H04N5/20
Filed: 1944-07-05
Abstract: 586,734. Copying-telegraphy. PRESS WIRELESS, Inc. July 5, 1944, No. 12817. Convention date, Sept. 22, 1943. [Classes 40 (iii) and 40 (v)] In copying-telegraph transmitters in which the photo-cell responsive is an exponential function of the density of the picture elements, the transmitted signal is made into a linear function thereof by the interposition of a logarithmic distorting circuit, in order that atmospherics may not have more effect in the dark than in the light part of the picture, and a converse arrangement is adopted at the receiver. At the transmitter the signal passed to the frequency-modulator through the conductor 18, Fig. 2a, is the logarithm of the output voltage of the photo-cell 11. The latter voltage is amplified by a high-gain pentode 13, whose plate is connected to the control grid of a variable-mu pentode 16. The electrodes of the latter are so connected to the voltagedivider 19 as to give the required logarithmic characteristic. At the receiver the output of the. discriminator is amplified by the D.C. amplifier 21, Fig. 2b, and applied to the control grid of a power tetrode 24 which controls the current in a crater lamp 26 for photographic recording. The minimum current through the crater lamp is determined by the resistance 25, but this is shunted by the power tetrode 24 whose screen voltage is chosen to give the requisite exponential characteristic. Specification 537,689 is referred to.
Patent GB-480498-A (GB)
Title: Improvements in preparing infusible self-filtering coffee
IPC: A23F5/12
Filed: 1937-05-05
Abstract: Infusible readily-filterable coffee is prepared by treating ground coffee with a sugary, bassorin-containing solution of gum, insoluble in water, and maintaining the treatment till the product becomes granular.  The coarse-grained and mealy portions of the ground coffee may be subjected to separate treatment and subsequently mixed.  The product is placed in infusion bags with large perforations.
Patent GB-552033-A (GB)
Title: Improvements in or relating to electrical musical instruments
IPC: G10H3/03
Filed: 1941-10-06
Abstract: 552,033. Electrical musical instruments. ELECTRICAL RESEARCH PRODUCTS, Inc. Oct. 6, 1941, No. 12864. Convention date, Oct. 15, 1940. [Class 88 (ii)] An electrical musical instrument employing rotating tone generators 13 driven by a constant speed motor 18 is provided with means for changing the rotation speeds of the tone generators substantially instantaneously from one predetermined speed to another predetermined speed so that music can be transposed to sound in keys other than that in which it is written and played, said means comprising speed-changing mechanism interposed between the time generators and the driving motor and giving a number of fixed speed ratios appropriate to the different musical keys and control means for selecting one of the available speed ratios. As shown, the speed-changing mechanism comprises constantly meshed gear trains 1 ... 5 and electro-magnetic clutches 22 for effecting the drive between the pinions 3, 4, these clutches being controlled by switches 11 so arranged that not more than one switch can be in closed position at a time. The switches are disposed in key-control section 10 of the console 6, the manuals, pedals, stops and volume controls being schematically indicated at 7. The wheels 1, 5 may have 86 and 172 teeth respectively. For the major key C, the ratio of the revolutions of the wheel 5 to those of the wheel 1 may be 1, obtained by providing a wheel 2 with 53 teeth and wheels 3 and 4 with 20 and 40 teeth respectively. For major key G, with ratio 3/2, the wheel 2 will have 59 teeth and wheels 3 and 4 16 and 48 teeth respectively; and so on.
Patent GB-890500-A (GB)
Title: Means for feeding cutting fluid to a machine-operated drilling or like tool
Inventor: DERBYSHIRE GEORGE CECIL
IPC: B23Q1/00
Filed: 1957-04-23
Abstract: 890,500. Lubricating cutting-tools. GUYLEE & SON Ltd., FRANK. April 23, 1958 [April 23, 1957], No. 12970/57. Class 83 (3). Means for feeding cutting fluid to a drilling or like tool comprises a jacket 54, Fig. 1, mounted on the shank 52 of a chuck 50, by circlips 59, the jacket having a fluid reservoir 55 connected to a bore 57 in the shank by a part 56 from whence the fluid passes to a duct in the drill via a bore 58. The reservoir is supplied with fluid by a nipple 61 connected to a fluid-source by a flexible pipe. A ring 64 is adjustably secured to a flange 62 on the jacket by a screw 63, and carries a splash guard 66. In a modification, the jacket is secured between a circlip and a flange on the chuck-shank.
Patent GB-122793-A (GB)
Title: Improvement in Pipe Wrenches.
Inventor: MCGHEE JOHN
IPC: B25B7/02
Filed: 1918-08-12
Abstract: 122,793. McGhee, J. Aug. 12, 1918. Pivoted - jaw wrenches. - The shank of one of the jaws of an adjustable pivoted-jaw wrench is provided with one or more recesses adapted to grip, with the other jaw, small pipes or bolts &c. without adjusting the jaws. As shown, the shanks A, B are pivoted together adjustably, and the inner edge of the shank B is formed with notches or recesses E, F.
Patent GB-310482-A (GB)
Title: Gas chamber for automatic fire arms
IPC: F41A5/26
Filed: 1929-04-26
Abstract: 310,482. Ceskß Zbrojovka, Akciova Spolecnost v. Praze. April 26, 1928, [Convention date]. Breech actions, sliding breech-block; attaching bayonets to guns. - Relates to gas-operated guns, and consists mainly in attaching the gas chamber to the barrel by a bayonet-joint. As shown, the. gas chamber 40, Fig. 1, has a plug 39 provided with lugs 42 which form a bayonetjoint with a groove 44 in the stock 37, whereby the plug 39 is secured tightly against the barrel 36. The stock 37 is extended forwards and provided with grooves 46, Fig. 3, and a notch 45 for the attachment of a bayonet.
Patent GB-274607-A (GB)
Title: Improvements relating to cartridge magazines
IPC: F41A9/74
Filed: 1926-05-25
Abstract: 274,607. Farquhar, M. G. May 25, 1926. Cartridge magazines. - Drum magazines of the kind in which the cartridges are arranged radially in layers in a fixed drum and are fed by a spring-operated cover, are provided with webs or fins forming continuous grooves to receive and guide the ends of the cartridges, the fins or webs preventing the cartridges of one layer from touching the cartridges in the next layer. As shown, the magazine comprises a fixed drum 7 and a rotatable cover 17. The inner and outer walls of the drum are provided with projecting circumf.e,rential webs 12 12<a>, 15, 15<a> forming continuous channels for the ends of the cartridges. The cover has depending webs 19 and is rotated by a spring 10 in the hub of the drum.
Patent GB-825204-A (GB)
Title: Improvements in or relating to fluid operated power units
Inventor: WALKER THOMAS BRADLEY
IPC: D06F71/06
Filed: 1955-05-06
Abstract: 825,204. Fluid-pressure presses. BRAITHWAITE & SON ENGINEERS Ltd., I. Jan. 22, 1956 [May 6, 1955], No. 13123/55. Class 122 (3). [Also in Groups VIII and XXIX] A fluid-actuated power unit for operating devices in which a long movement necessitating a relatively low pressure is first required to bring two members adjacent one another but not in pressure contact, followed by a short movement necessitating a higher pressure to bring them into pressure contact, comprises two pairs of cylinders A, B and G, H, one cylinder of each pair being adapted to be connected to a source of pressure air (viz. cylinders A and G) and the other cylinder of each pair containing oil or other fluid (viz. cylinders B and H), the pistons a1, b1 of one pair being mounted on a common piston rod a2 connected to the member to be actuated by the unit, and the pistons g1, g3 of the second pair, which are also mounted or formed on a common piston rod g2, having the area of the piston g1 in the air cylinder G greater than the area of the piston g3 in the fluid cylinder H, the pressure air being admitted to the air cylinder A to give the long movement at low pressure, and then pressure air being supplied to the air cylinder G to cause the piston thereof to move and apply pressure to the fluid in the fluid cylinder H, this pressure being transmitted to the fluid in the fluid cylinder B to act on the piston b1 thereof and exert a greater pressure on the common piston rod a2, thereby giving a small movement of the latter at a higher pressure. As shown the invention is applied to a garment pressing machine having a fixed pressing surface u3, and a movable pressing surface u2 carried by a lever U pivoted at u1 and operatively connected to the piston rod a2. The cylinder A has air inlets a9 and a8 respectively above and below the piston a1. The cylinder G has air inlets g8 and g9 respectively above and below the piston g1. Ports K and k1 are provided between cylinders B and H to allow the oil in cylinder B to move from one side of piston b1 to the other side while the piston g3 is in the position shown in Fig. I. As the piston g3 moves downwardly the port k1 is closed by the rod g2 and oil above the piston b1 is displaced into a vessel J through the port K and a pipe connection j3. Damping means.-Piston rod a2 is connected to a cross-head a7 to which is secured a piston rod n6 whose piston n7 slides in a cylinder N. The piston n7 has a cylindrical bore nlO adapted to receive a cylindrical extension n11 at the upper end of the cylinder N, and a cylindrical extension n9 adapted to enter a cylindrical bore n8 at the lower end of the cylinder N. The cylinder N is charged with a suitable fluid to a free service level n13 in an oil chamber n4. The piston n7 is provided with vent holes nl2 which are suitably graded in size in order to bring the moving parts to rest smoothly. Specifications 741,340 and 776,051, [both in Group VIII], are referred to.
Patent GB-383888-A (GB)
Title: Shoe lace fastener
IPC: A43C7/00
Filed: 1932-05-06
Abstract: 383,888. Lacing-fastenings. GRUNDLEHNER, E., 11, Grand Street, Sidney, New York, U.S.A. May 6, 1932, No. 13124. Convention date, May 6, 1931. [Class 43.] A shoe - lace fastener, preferably for use with elastic shoe laces, comprises a fastening element 7 having openings 8 therein and a resilient sleeve 9 which may be split 'longitudinally. The sleeve may be arranged to project on one side of the fastening element as shown in Fig. 2, or it may be arranged in the plate as shown in Fig. 4. The edges of the fastening element may be bent into arcuate shape towards the sleeve, as shown in Fig. 4. In use, the free end of the lace is threaded through the sleeve 9 from the rear end of the sleeve, which is then moved along the lace and pressed into a shoe eyelet whereby the lace is clamped; the end of the lace is then threaded through the openings 8 as shown, thereby further securing the lace against slipping.
Patent GB-843933-A (GB)
Title: Electric circuit control apparatus
IPC: H01H47/34
Filed: 1956-04-30
Abstract: 843,933. Inductors; switching systems. AUSTIN MOTOR CO. Ltd. April 2, 1957 [Aug. 30, 1956], No. 13143/56. Classes 38 (2) and 38 (4). A variable inductor comprises a fixed magnetic core member 12 carrying a winding 13, and a movable yoke member 14 attached by rods 16 to a member 17 which is movable downwards by a push button 19. Springs 18 normally keep the yoke in engagement with the member 12. A two-part casing 10, 11 is provided. The core may be of ferrite material. The yoke may be pivoted, and the core of cylindrical pot form. The inductor is used in a control circuit for a relay 24 including an auto transformer 20 and rectifiers 23, when depressing the push button on the inductor 13 decreases its impedance and allows the relay to operate.
Patent GB-1421316-A (GB)
Title: Device for thermal treatment of metal parts
IPC: C21D1/46
Filed: 1974-03-25
Abstract: 1421316 Salt bath tempering CREUSOTLOIRE 25 March 1974 [22 May 1973] 13167/74 Heading C7N In the tempering of segments of high speed steel saws in which the teeth 13 are to be hardened while the fixing rivet holes 14 are not, the segments are suspended from a horizontal support 11 within an airtight, pre-heated bell 10, which is immersed to a predetermined depth in a salt bath 2. The depth of immersion is such that the teeth 13 are within the uniform temperature zone 2' of the bath 2 (the upper 50-60 mm of which has a non-uniform temperature due to cooling by fume removal) and the rivet holes 14 are not immersed. Control of depth of article immersion is by the pressure difference between the air trapped in the bell and the air pressure within the furnace.