baber/WOPTO huggingface dataset:
Patent GB-253746-A (GB)
Title: Improved cartridge type wireless detector
IPC: H01L21/48
Filed: 1925-08-11
Abstract: 253,746. Bennison, W., and Clark, L. V. Aug. 11, 1925. Crystal and like detectors.-A holder of the cartridge type adapted for mounting between spring - holders, comprises a casing 1 with two metallic end pieces 2, 3 containing three detector elements 4, 6, 5 which form a conducting chain. The elements 4, 5 may be zincite, galena, or other crystal, whilst the element 6 is preferably a metalloid such as tellurium. A spring 7 enclosed in a sleeve 8, or contacting directly with the crystal, maintains the several elements in contact. As shown in Fig. 3 one of the crystal elements may be cemented into a cup, and manipulated by means of a rod 10.
Patent GB-706436-A (GB)
Title: Improvements in electric adding devices
IPC: G06F7/504
Filed: 1951-08-27
Abstract: 706,436. Digital electric calculating-apparatus. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Aug. 27, 1951, [Aug. 26, 1950], No. 20204/51. Class 106 (1) In an electric adding device for binary numbers represented by series-mode pulse trains, the pulse trains are applied via input terminals 1, 2 and a channel 10 to the input 3 of the first of two cascade-connected bi-stable trigger stages I, II forming a pulse counter to which resetting pulses are periodically applied from 13, the channel 10 including delay means and so coupling stage II to input 3 that a carry pulse is applied thereto as a result of stage II having been actuated (representing carry " I "): and reading pulses from 12 are periodically applied to a gate 6 which is opened by stage I, if actuated (representing " 1 "), to allow a pulse to appear in the output (sum) channel 7. The instants of application of the input and carry pulses at input 3 and of the read and reset pulses at 12, 13 are all out of phase with one another. In particular, they may occur in a regular cyclic sequence in which every two consecutive instants are spaced by #=1/5# where # is the digit interval of the series-mode trains. In Fig. 4 the input trains are applied simultaneously and the pulses are phase-displaced by T=2e in element 20. If trigger II is actuated, a read pulse from 12 is allowed through gate 8 to produce a carry pulse on channel 10 which is delayed by 3# elements 18 and 20 before reaching input 3. Various other arrangements of delay element(s) in channel 10 are shown, some of which are adapted to receive input trains phase-displaced by #. In another form, Fig. 10, channel 10 is directly connected to stage II and the carry pulse is produced when the triggers are reset and is delayed by e in element 26; a detailed circuit diagram of this arrangement is given, Fig. 11 (not shown).
Patent GB-780456-A (GB)
Title: Paper bags to facilitate usage of all household residue fuel
IPC: B65D30/00
Filed: 1955-07-13
Abstract: 780,456. Fireproofing. WORRALL, F. July 13, 1955, No. 20210/55. Class 140. [Also in Group XII] Paper bags are treated with a solution of sodium silicate to reduce their combustibility. The treated bags are used in preparing fuel briquettes (see Group XII).
Patent GB-1148744-A (GB)
Title: Method and apparatus for treating blood preliminary to its use in transfusions
Inventor: SWANK ROY LAVER
IPC: A61K35/14
Filed: 1966-05-06
Abstract: 1,148,744. Testing blood. R.L. SWANK. May 6, 1966 [June 14, 1965], No.20262/66. Heading G1S. [Also in Division B1] Apparatus for testing blood for the presence of aggregates of platelets and leucocytes comprises a pump 10, operated to produce a constant flow of blood through a filter disc 18 of woven plastic or metal, and a pressure gauge 28 connected upstream of disc 18. The aggregates tend to clog the disc 18 so that greater pressure is developed in maintaining the flow. In use, a control run in which saline solution is used precedes the run using blood, and a further run with saline solution indicates the amount of aggregates remaining on disc 18 after the blood run.
Patent GB-525251-A (GB)
Title: Improvements in and relating to pistons
IPC: F02F3/08
Filed: 1939-02-20
Abstract: 525,251. Alloys. NICOLLE, A. V., WHITE, P., and AUTOMOTIVE ENGINEERING CO., Ltd. Feb. 20, 1939, No. 20325. Divided out of 27506/38. Drawings to Specification. [Class 82 (i)] [Also in Group XXVI] A piston is made of an aluminium alloy containing 14 per cent. of silicon,' 2 per cent. of nickel, 1 per cent. of magnesium, and 0.9 per cent. of copper.
Patent GB-716278-A (GB)
Title: Improvements in or relating to direct voltage stabiliser circuits
Inventor: RIDGEWAY DENIS VICTOR
IPC: G05F1/46
Filed: 1952-08-28
Abstract: 716,278. Automatic voltage control systems. CINEMA-TELEVISION, Ltd. Aug. 28, 1952 [Aug. 29, 1951], No. 20409/51. Class 38(4) In an automatic voltage stabilizing arrangement of the type in which a portion of the output voltage is tapped off a potential divider and used to correct the voltage, and in which the two arms of the: potential divider are shunted by condensers to improve the transient response, one, or both, of the condensers are constituted by the capacity of a coaxial cable which is used to connect the stabilized output to the load. Thus the capacity between the inner and outer conductors 8, 9, Fig. 2, shunts the resistor 3, the other arm 4 being conventionally shunted by a condenser 7. In a modification, Fig. 4, a further sheath 10 is added to the cable, and connected to the lower end of resistor- 4, the capacity between the inner sheath 9 and the outer 10 providing a part of the required capacity across the resistor. The remainder may be supplied by a conventional condenser, Fig. 3 (not shown), or by a further section of cable 12. Resistor 13 is included to improve the smoothing.
Patent GB-1375685-A (GB)
IPC: H01C17/28
Filed: 1973-04-30
Abstract: 1375685 Thermisters SHIBAURA ELECTRONICS CO Ltd 30 April 1973 [2 May 1972] 20443/73 Heading H1K A body of sintered thermistor material is provided with layers of heat resistant electrode material which are attached by further such material to lead wires which extend out of and are sealed to an encapsulating mass of glass. Typically a mixture of oxides of manganese, nickel and cobalt is pulverized, and press moulded to form a large disc 1 mm. thick. After sintering at over 1000‹ C. its faces are lapped to reduce its thickness to ¢ mm. and then coated with a glass composition containing particulate gold or gold and platinum, which is then fired at 900-1000‹ C. The disc is later subdivided by ultrasonic cutting into 1 mm. dia. pellets the best of which are selected, DUMET or platinum wires attached and the resulting assembly disposed in a soda glass tube. Subsequent heating at 800‹ C. in a tunnel kiln seals the pellet in the glass and strengthens the bond between the wires and the pellet. Alternatively the pellets may be moulded and sintered individually, in which case the steps of firing the electrodes and attachment of wires may be combined in a single operation, which may precede or be combined with the step of encapsulation. An alternative to using a glass tube is to coat the pellet with glass powder.
Patent GB-783217-A (GB)
Title: Improvements relating to machines for producing bags
IPC: B31B160/10
Filed: 1955-07-15
Abstract: 783,217. Bag-making machines. HONSEL, C. July 15, 1955 [July 29, 1954], No. 20523 /55. Class 94(2). A machine for producing flat and side-fold bags, particularly with two stuck seams, comprises a folding-blade cylinder 2 with a blade 4, a fold-gripper cylinder 3 with grippers 5, a guide cylinder 8 and a delivery cylinder 10 disposed one after the other for working on a blank 1, 12, Figs. 2, 4, in succession, the guide cylinder 8 and the delivery cylinder 10 having gripper devices 7, 9 and fold-forming means 20, 21 such that it is possible to produce at will either a bottom fold, e.g. at 7a, Fig. 2, for bags produced with their lengths lying in the direction of travel of the blanks or two side folds, e.g. at 13, 22, Fig. 4, for bags produced with their lengths lying transversely of that direction. The blank 1 of Fig. 2 is supplied with adhesive strips 7b, c from a glueing device 14-18 and is pressed by a folding-blade 4 into a fold-gripper 5 along the line 7a. A roller 6 completes the folding and sticking operation and the bag is passed by grippers 7, 9 to a stack 11. The blank 12 of Fig. 4 is glued by a modified glueing device and folded along the line 13 by the blade 4 and gripper 5 and pressed down by the roller 6. A gripper 7 takes up the bag on the cylinder 8 and a blade 20 and gripper 21 make the fold 22 to complete the bag.
Patent GB-238567-A (GB)
Title: Improvements in or relating to the hydraulic transmission of power
IPC: F16H61/475
Filed: 1925-08-15
Abstract: 238,567. Kahlig, J., and Grazer Waggon-und Maschinen - Fabriks- Akt.-Ges. vorm. J. Weitzer. Aug. 16, 1924, [Convention date]. Strode, varying.-A hydraulic gear comprising a pump and motor is provided with a fluid-pressure operated regulating member, the supply of operating fluid being under the control of a valve acted on by a spring and the pressure in the gear. As shown in Fig. 1, the pump 1 consists of eight cylinders and pistons, the rods of which rest on a central piece rotating on a pin which may be raised or lowered by a double piston 23 and a rod 2. If a cock 16 be in the position shown in Fig. 4, oil passes from the motor 3 through the pipe 4<1> and a valve 5 to the valve chamber 6, thence through the cock 16 and a pipe 21 to the underside of the piston 23 raising it and the axis of the pump 1, and increasing the quantity of fluid delivered by the pump 1 to the motor 3. The increasing pressure lifts the valve 8 against the spring 12, until the flow is cut off by the rise of the ports 9, and the piston 23 is held in a definite position. A further increase of the pressure causes the valve 8 to rise until the pipe 21 is opened through the port 15 to an exhaust port 14 and the piston 23 falls. In a modification, the rod 2 has a rack which rotates a cam 27, Fig. 8, and by means of a lever 28 changes the load on the spring 12.
Patent GB-275641-A (GB)
Title: Process for the production of cellulose esters
IPC: C08B3/04
Filed: 1927-08-04
Abstract: 275,641. El÷d, E. Aug. 4, 1927. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug, 10, 1927]. Cellulose formates.-Cellulose is esterified with highly concentrated formic acid such as 98-100 per cent, in presence of considerable quantities of swelling-agents such as zinc chloride or calcium bromide and of catalysts which assist the esterification but not the degradation of the cellulose, the reaction being carried out at temperatures between 5 and 30‹ C., and interrupted when the desired degree of esterification has been effected. The catalysts mentioned are hydrochloric acid and phosphoric anhydride. In the examples slightly nitrated cellulose is mixed at ordinary temperature with anhydrous zinc chloride and absolute formic acid saturated with hydrochloric acid, the reaction being interrupted after about an hour by pouring into water, after which the precipitate is dried and dissolved in diformin; linters are treated in a similar manner, the reaction being interrupted after 20-30 minutes and the product dissolved in formamide. The cellulose formate may be dissolved in suitable solvents such as thiocvanates of the alkalies and alkaline earths, nitromethane, fonnamides, glycerol formates, chlorhydrins or mixtures of such solvents with or without plastifying agents. The Specification as open to inspection under Sect. 91 (3) (a) of the Act states that the esterification may be carried out at low temperatures such as below 0‹ C. to retard the degradation of this cellulose. This subject-matter does not appear in the Specification as accepted.
Patent GB-712120-A (GB)
Title: Improvements in or relating to dials for circular, independent needle, knitting machines
IPC: D04B15/18
Filed: 1951-08-31
Abstract: 712,120. Knitting-machines. HEMPHILL, CO. Aug. 31. 1951 [Dec. 19, 1950], No. 20629/51. Class 74 (2) Each slot 1 of a dial for a knitting-machine is of uniform cross-section and ends in a recess 3 of greater width than the slot, cut entirely through the outer edge of the dial and closed at its bottom by an annulus plate 4 fixed to the dial.
Patent GB-960909-A (GB)
Title: Improvements relating to filter cloths for use on the internal leaves of pressure filters
Inventor: HEATH THOMAS ASTON
IPC: B01D29/39
Filed: 1961-07-19
Abstract: 960,909. Filter leaves. HEATH FILTRATION Ltd. July 18, 1962 [July 19, 1961], No. 26087/61. Heading BID. The edges 7, 8 of an aperture in an envelopestyle filter cloth 4, 5, Fig. 2, are reinforced with rope or like 9 so that they may be secured, when the cloth is in position on a filter leaf 6, by one or more channel-section clips 10. Such clips may be slid from an inoperative position (Fig. 1, left-hand side) to an operative position (Fig. 1, right-hand side).
Patent GB-971646-A (GB)
Title: Improvements in or relating to plug valves
Inventor: REED JR CHARLES L
IPC: F16K5/16
Filed: 1961-06-08
Abstract: 971,646. Valves. CONTINENTAL MANUFACTURING CO. June 8, 1961 [April 26, 1961], No. 20702/61. Heading F2V. A plug valve comprises a body B, Fig. 8, with each passage 10, 12 terminating in a lip 36, a valve V, and a seal S including passages through which the lips project. The width of the lip of the inlet passage 10 may be wider by 50% or more than that of the outlet passage 12 to ensure that the valve will always shut off first on the downstream side. The seal S thus remains under compression on the downstream side while its portions adjacent the upstream side are not subjected to a high pressure differential. If the seal is volatilized, the valve V is shifted laterally by fluid pressure on its face R to bring the face J into engagement with the lip of the outlet passage. The sleeve cold flows into relief areas 38 and 40, Fig. 6, in the body B and the valve V is sealed by a resilient disc 63 surrounding the spindle 61 and engaged by a gland nut 77. Fig. 10 shows a modified valve in which a non-circular recess 100 is engaged by stem 112 having resilient seals 142, 144 compressed by a screw 172. A second screw 180 engages a plate 184 for applying an axial force to a metallic diaphragm 186 and a resilient diaphragm 188. If the seals are volatilized, fluid pressure in space X separates the stem and valve axially until faces 140, 134 and the end face of the valve and diaphragm 186 are brought into contact to prevent escape of fluid. A halogenated ethylene, such as P.T.F.E., may be used for all of the seals. The valve may control hydrofluoric acid or rocket fuel.
Patent GB-790503-A (GB)
Title: Improvements in and relating to the production of ªÏ-amino acids
Inventor: KOWOLIK ERNEST JAN
Filed: 1955-07-18
Abstract: o -Aminocarboxylic acids are obtained by hydrolysing the corresponding high linear polyamides by heating them with an aqueous solution of barium hydroxide and precipitating the barium from the resulting solution in the form of an insoluble salt.  The polyamide may be in the form of textile or other waste and is then preferably given a preliminary scouring treatment, e.g. washing with soapy water, to remove impurities.  Preferably 0.55 to 0.7 molecules of barium hydroxide are employed for each carbonamide group in the polyamide.  The hydrolysis treatment is preferably conducted at a temperature of 140-160 DEG  C. under increased pressure.  The barium may be precipitated as the carbonate by passing carbon dioxide through the solution or as the sulphate by addition of sulphuric acid.  The examples describe the preparation of e -aminocaproic acid, 7-aminoheptanoic acid, 9-aminononanoic acid and 11-aminoundecanoic acid.
Patent GB-1503681-A (GB)
Title: Apparatus for removing liquid from a slurry
IPC: B63B27/24
Filed: 1975-05-15
Abstract: 1503681 Raising liquids by vacuum MITSUBISHI JUKOGYO K K AND KOBE SEIKOSHO K K 15 May 1975 [22 May 1974 23 May 1974] 20740/75 Heading F1R [Also in Division B1 ] Liquid is removed from a slurry (e.g. iron ore in water) held in a container 2 (e.g. hold of a ship) by withdrawing the liquid through ports 5 in the container by suction apparatus which comprises a vacuum tank 7, a vacuum pump 9 communicating with the upper portion of tank 7 to remove air therefrom and a drainage pump 11 communicating with the lower portion of the tank 7 to remove liquid therefrom. Preferably each port has a filter bed 5d (e.g. of iron particles) retained between screens 5c and 5e. Pump 12 discharges supernatant liquid from container. Means 14 may be provided for indicating the height of the layer of settled solids in container 2, the means comprising a weight which floats on the settled solids and is supported by a cord which passes around a pulley and is connected to the containers by a spring.
Patent GB-980338-A (GB)
Title: An improved quantum mechanical tunneling semiconductor device
IPC: H01L21/24
Filed: 1962-05-30
Abstract: 980,338. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 30, 1962 [June 23, 1961], No. 20755/62. Heading H1K. A semi-conductor tunnelling device comprises a PN junction wherein the doping level of one of the conductivity type determining impurities is very heavily degenerate, and wherein the doping level of the other conductivity type determining impurity is greater than degeneracy. As shown, Fig. 4, the Fermi level lies well within the valence band of the very heavily doped P-type material, the very heavy doping of which also makes the upper edge of this band diffuse. The usual turn-over portion A of the characteristic, Fig. 1, occurs when the applied voltage is such that the Fermi level coincides with the upper edge of the valence band, and if this edge is diffuse then the turnover is not sharp and has a plateau A-B giving a substantially constant current over a range of applied voltage. In the embodiments described the doping of the P-material is about 100 times that which would normally produce degeneracy and the doping of the n-material is about 5 times that which would produce dedegeneracy. In one embodiment a bulk region of germanium doped with 2-8 x 10<SP>20</SP> atoms of gallium/c.c., has alloyed thereto a tin dot doped with arsenic, the latter diffusing into the bulk germanium to produce doping to the extent of 2-3 x 10<SP>19</SP> atoms of arsenic/c.c. and a barrier layer of less than 150 Š width. In another embodiment a germanium body doped with 2-3 x 10<SP>19</SP> atoms of arsenic/c.c. has an aluminium or aluminium-boron dot alloyed thereto to produce doping of 2-8 x 10<SP>20</SP> atoms of aluminium/c.c.
Patent GB-290475-A (GB)
Title: Improvements in electric control switches for high tension cables
IPC: H01H31/28
Filed: 1927-08-06
Abstract: 290,475. Berg, F. Aug. 6, 1927. High-tension switches. - High-tension airbreak switches are constructed with a movable contact carried by two insulators which are rigidly arranged relatively to one another in the same plane, but are so inclined to each other that the switch opening and closing stresses are transmitted to the rod insulators purely as tension and compression forces, thus preventing any bending strains on the insulators or the supports to which they are cemented. As shown in Fig. 1 the movable contact blade hand arcing horn e<2> are carried by an angularly movable framework consisting of the root insulators g, g<1> secured at their lower ends to a channel iron member f. If considerable pressure has to be employed in opening the switch, as, for example, when the contacts have been frozen together, the inclination of the insulators is such that the outer insulator bears a tension component of this force and the inner insulator a compression component. In closing the converse occurs. The fixed contact clip d and arcing horn e are mounted on a similar framework consisting of insulators b, b' mounted on fixed channel iron base members a to which the movable framework is pivoted at f<1>. In a modified arrangement shown in Fig. 3, two movable contact members constructed as already described are provided, swinging outwardly at opposite sides of a fixed contact structure consisting of two insulators m, m<1> secured together by a transverse bar n, the frame thus formed being braced by a diagonal insulator o.
Patent GB-1436343-A (GB)
Title: Energy absorbing device
IPC: F16F9/50
Filed: 1973-05-02
Abstract: 1436343 Bumpers REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 2 May 1973 [14 June 1972] 20788/73 Heading B7J [Also in Division F2] A vehicle bumper 27 is mounted via flexible metal leaves 35 on two hydraulic piston-cylinder shock absorbers whose valving provides a constant deceleration on impact. The shock absorbers are depicted in greater detail in Figs. 1 and 2 (not shown but see Division F2). Flow of liquid from the cylinder 32 of each shock absorber to a reservoir 44 over the whole of each impact stroke is throttled by a valve cement 37 which is acted on by a control pressure trapped by a ball valve in a chamber 40 this control pressure being the pressure reached in the cylinder initially on impact. The control chambers 40 are connected by a pipe 47. In Fig. 4 (not shown) the shock absorbers are standard and liquid flows from both on impact to a common reservoir past a common valve element similar to that of Fig. 3. The ends 30 of the gumper are rendered integral with the chassis at fixed points 31 by means of resilient elements permitting some reciprocatory movement.
Patent GB-984609-A (GB)
Title: Improvements in vto aircraft fan thrust deflecting structure
IPC: B64C29/00
Filed: 1963-05-24
Abstract: 984,609. Controlling aircraft fan efflux. GENERAL ELECTRIC CO. May 24, 1963 [May 28, 1962], No. 20825/63. Heading B7G. The Figure is a part section through the nose of the fuselage of an aircraft perpendicular to the longitudinal centre line of the aircraft, and shows a fan 14 having a vertical axis enclosed by two doors 17, 18, each pivotable about a hinge axis 21 passing through or near the centre of pressure of the door, so that the doors can be rotated to positions, e.g. as in broken lines, where they intercept part of the fan efflux and guide it along their inner faces to reverse the direction of flow, and in an extreme position shown in broken lines, form a continuation of the duct, guiding the flow along their outer faces. In the latter position, a rib 25 detaches the flow from the door face. The fuselage has a central strut 19. The fan is driven by tip turbine blades 13, and is used for pitch control. Guide vanes parallel to the doors may be fixed thereto, Fig. 4 (not shown), and the forward and aft edges of the doors may have fences to prevent air spilling over these edges. Each door may support a flap on parallel links, Fig. 6 (not shown), the flap resting on the door outer face when the doors are closed, and being extended to guide air along that face when the doors are used to deflect the fan efflux. The fan intake in the nose upper surface may be opened or closed by louvres.
Patent GB-1171359-A (GB)
Title: Improvements in or relating to Disc Brakes
Inventor: LUCIEN RENE
IPC: F16D55/2265
Filed: 1967-05-04
Abstract: 1,171,359. Disc brake. MESSIER. 4 May, 1967 [11 May, 1966], No. 20835/67. Heading F2E. A disc brake wherein the caliper 1 is connected to a support 2 by a shaft 5 and is slidable thereon to compensate for pad wear, has the shaft 5 positioned so that the resultant of the braking forces passes substantially through the axis of the shaft. The caliper is additionally provided with a notch 15 engaging a sleeve 8 on a pin 7 secured to the support. The brake pads 6, 6<1> are removable through an opening 9 in the caliper, the pads being retained during brake operation by pins passing through lugs 13. In another embodiment where the full opening 9 is not provided, Figs. 4, 5 (not shown), the caliper may be swung outwardly about shaft 5, when the pin 7 has been removed, to permit access to the pads. The shaft 5 may be secured in lugs 4 in the support and slidably engage an opening in the caliper, as shown, or may be secured to the caliper and slidably engage the lugs.