baber/WOPTO huggingface dataset:
Patent GB-1206299-A (GB)
Title: Transducer apparatus
Inventor: BROCE MAX EUGENE
IPC: H03F3/347
Filed: 1967-12-12
Abstract: 1,206,299. Piezo-resistive elements. TEXAS INSTRUMENTS Inc. 12 Dec., 1967 [23 Jan., 1967], No. 56397/67. Heading H1K. [Also in Divisions H3 and H4] An electro-mechanical circuit element comprises an insulated gate field effect transistor whose channel layer conductance varies directly with the applied stress. The element, Fig. 1, comprises two heavily doped P-type areas 1 and 2 which are diffused into an N-type silicon substrate 3 and connected by a channel layer 4 a few Angstrom units thick. A thin insulating layer 5 of silicon oxide or silicon nitride placed over the surface forms the gate dielectric material. Metal electrodes 6, 7 and 8 are connected to the source, gate and drain respectively. Carrier mobility in such an element is very sensitive to imparted stress, especially as conduction takes place in the extremely thin channel layer, and a piezo-resistive effect results. The transistor may work in the depletion mode or enhancement mode, and can be used as a transducer in a mono or stereo pick-up, or in a microphone. In the latter application, Fig. 7, a silicon bar 43, rigidly attached at 46 to support 44 has such an element with source 47, gate 48 and drain 49 formed in it. A diaphragm 41 is attached to the free end of the bar so that when sound waves impinge upon it it deflects the bar to produce stresses in the transistor and thereby provide an electric signal which is fed to pre-amplifier. The amplifier circuit may be formed in the same bar as the element, Fig. 8, not shown, and comprises a number of field effect transistors of similar type to the transducer element.
Patent GB-1169654-A (GB)
Title: System for Entering Data in Storage Locations
Inventor: HERTZ THEODORE M
IPC: G06F7/22
Filed: 1967-12-14
Abstract: 1,169,654. Recirculating memory. NORTH AMERICAN ROCKWELL CORP. 14 Dec., 1967 [7 March, 1967], No. 56766/67. Heading G4C. A system for entering data words in one of a plurality of storage locations in a circulating type storage means and for ordering the words in accordance with predetermined logical conditions, comprises means arranged to cause a gap between filled storage locations to precess through the filled storage locations as the storage locations circulate, means arranged to compare a word waiting to be entered with the word in each filled storage location in turn in accordance with the said conditions and in response to such comparison, to cause the waiting word to enter an empty location in the gap in correct order. In one embodiment a storage system, such as a rotating disc or drum, a magnetic tape loop or a recirculating delay line or flip-flop register has facilities for storing n words, e.g. 61, two read heads 3, 2, and one write head 1. Initially a control signal Mi causes a reference signal (all zeros or all ones) to be written and then writes the inverse signal (all ones or all zeros) in succeeding places. At the end of a revolution a control signal Mw is produced causing a wait mode. If, for instance digits are to be stored in ascending order, the reference signal is all ones and denotes the maximum stored signal. During the wait mode each digit read at head 2 is tested. When a zero is found a search mode Ms is commenced. This causes comparison of selected bits of a word stored in recirculating register N with each word read at head 3, and each word read at head 2 is recorded at head 1 to cause precession of the zero word. When the word at head 3 is greater than or equal to the word in N then a copy mode Mc commences, head 7 records the word in register N and the precessed gap is filled. In a second embodiment heads 2 and 3 are rendered coincident and two cycles of the memory are required to write in the word in the correct position, comparison being made during the first cycle and a counter identifying the required position and read in occurring during the second cycle. A plurality of words can be read into the memory during one cycle if more heads are used. If n words, ordered in the required relation, are to be read into the memory in one cycle then the number of heads h required is given by successive heads being spaced by 1, 2, 4, 8, 16 in word lengths (e.g. for n = 6, h = 4, the head corresponding to 1 in Fig. 1 is spaced by one B word length from the head corresponding to 2. The next head is spaced by two word lengths, the next by four &c. from each preceding head. The register K in Fig. 1 can be a masking register defining which bits of the words are to be compared.
Patent GB-568229-A (GB)
IPC: H04Q1/18
Abstract: 568,229. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Oct. 29, 1943, No. 17863. Convention date, Dec. 21, 1942. [Class 40 (iv)] In a detector for ascertaining the calling number in an automatic ticketing system in which a tone voltage is applied to the test wire of the calling line over the route by which the detector is taken into use and leads associated with the various lines are tested in groups for the presence of the tone voltage, false operation by extraneous voltages is prevented by the use of testing devices that respond only when the voltage picked up agrees in frequency and phase with the applied voltage. Apart from this feature the detector described is similar to that described in Specification 565,654 (Figs. 29-38). When wire C416 is grounded, the generator 3160 applies the tone voltage over transformer 410 to wire C3102 as a marking potential and to the input transformer 405 of each of ten testing devices, one of which is shown, as a reference potential. In consequence, current flows in parallel circuits through a double-diode rectifier 440 and equal resistances R1, R2, and condensers C1, C2 in parallel with these resistances accumulate equal and opposite charges. The control grid 453 of the amplifier 450 is connected to negative battery through condensers C1, C2 in series and, therefore, the normal disabling bias is unaffected by the presence of the reference potential. The voltage picked up over test conductor C3500 is applied by way of transformer 400, driver valve 420 and transformer 430 across the plates 442, 445 of the rectifier 440. If this voltage is in phase with the reference potential, there is a considerable increase of current in the circuit including plate 445 and condenser C1 charges at a faster rate than C2 until, after a certain number of cycles of current from the generator, the negative potential on grid 453 is reduced sufficiently to render the amplifier 450 conductive. It will be appreciated that any stray voltage appearing on conductor C3500 which may be momentarily of the correct frequency and phase will not persist long enough to be effective. Specifications 530,443 and 530,614 also are referred to.
Patent GB-1460269-A (GB)
Title: Cephalosporins
IPC: C07D501/32
Filed: 1972-12-11
Abstract: 1460269 3-Phthalidyl ester of cephaloglycine BEECHAM GROUP Ltd 26 Nov 1973 [11 Dec 1972] 57170/72 Addition to 1377817 Heading C2C The novel 3-phthalidyl ester of cephaloglycine and pharmaceutically acceptable acid addition salts thereof are prepared by reacting 3-phthalidyl 7 - amino - 3 - acetoxymethyl - ceph - 2- or 3 - em - 4 - carboxylate or a silyl derivative thereof with a reactive N-acylating derivative of the D-isomer of a phenylacetic acid of the general formula Ph-CHX-COOH, wherein X is an amino group (optionally protected) or a group convertible to an amino group, removing the silyl group, if present, by hydrolysis or alcoholysis, if necessary converting a #<SP>2</SP>-isomer to a #<SP>3</SP>-isomer and, if X is not an amino group, converting it to such a group under neutral or acid conditions, followed optionally by salification of the product. Novel 3 - phthalidyl 7 - amino - 3 - acetoxymethyl - ceph - 2 - or 3 - em - 4 - carboxylate or a salt thereof is prepared by esterifying a suitable 7-acylamino-3-acetoxymethyl-ceph-3- em-4-carboxylic acid, optionally isomerizing any #<SP>2</SP> - phthalidyl ester to the #<SP>3</SP> - isomer by oxidation and reduction of the resulting sulphoxide, and cleaving the 7-acylamino side chain in the resulting ester. Pharmaceutical compositions having antibacterial activity comprise, as active ingredient, the 3-phthalidyl ester of cephaloglycine or a pharmaceutically acceptable acid addition salt thereof, together with at least one pharmaceutically acceptable carrier.
Patent GB-1242690-A (GB)
Title: Production of aromatic polyesters of improved colour
Inventor: HEWERTSON WARREN
IPC: C08G63/85
Filed: 1968-12-03
Abstract: 1,242,690. Catalysts for preparing polyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 Nov., 1969 [3 Dec., 1968], No. 57271/68. Heading C3R. [Also in Division C2] A high molecular weight fibre-forming polyester is prepared in a batch or continuous process by polycondensing a polycondensable material of which 85% or more consists of at least one bis ethylene glycol ester of an aromatic dicarboxylic acid in the presence of, as catalyst, one or more coordination compounds of a trivalent antimony compound with an organic oxo compound of phosphorus or arsenic preferably having the structure wherein the R groups, which may be the same or different are alkyl, alkoxy, phenyl or phenoxy, R 1  is a direct link or a divalent alkylene group, Y is an anion (e.g. halogen, cyanide or isocyanate) or an alkyl group, e.g. methyl, and n is zero or 1.
Patent GB-1371929-A (GB)
Title: Pressure responsive tranfer systems
IPC: B41M5/10
Filed: 1972-12-14
Abstract: 1371929 Pressure-responsive transfer system BIBBY & BARON (HOLDINGS) Ltd 14 Dec 1972 [10 Dec 1971] 57370/71 Heading D2B [Also in Divisions B6 and C5] In a pressure-responsive transfer system comprising first and second sheets having their opposed surfaces coated with a receptor and a donor coating respectively and in which application of mark-forming pressure on the first sheet causes corresponding marking to be produced on the second sheet as a result of localised transfer of the donor coating to the receptor coating revealing a record colour on the second sheet, the donor coating comprises a protective layer and a subjacent masking layer having a strong affinity for the protective layer, the masking layer being superimposed on and readily detachable from the record colour layer which has a strong affinity for the second sheet. As shown, the system may comprise a top sheet A provided with a receptor coating b, an intermediate sheet A' provided with protective layer z, masking layer y, and record colour layer x on one surface and receptor coating b on its opposite surface, and a bottom sheet A" having its top surface coated in the same manner as A'. The receptor coating may be formed from modified polyethylene/ wax compositions optionally pigmented. The colour layer x may be formed from an aqueous solution or dispersion of an appropriate polymer containing a pigment. The masking layer y may be formed from a pigmented solution of a polymer or polymers dissolved in a volatile organic solvent. The protective layer z may be formed from an aqueous pigmented polymer dispersion.
Patent GB-1281780-A (GB)
Title: Recording apparatus
Inventor: ROYSE DAVID
IPC: G07F7/08
Filed: 1970-12-03
Abstract: 1281780 Data transfer; ticket issuing INTERNATIONAL BUSINESS MACHINES CORP 3 Dec 1970 [29 Dec 1969] 57382/70 Heading G4T [Also in Division B6] Magnetic and embossed information on a card 28, e.g. a credit card, a further card 30 and settable information carriers 36 is transferred to a record form 32, e.g. an airline ticket, by aligning a magnetic stripe 54 of the form with magnetic stripes 48, 50 and 40 of the cards 28, 30 and carriers 36 respectively and passing over the form a carriage 56 comprising a magnetic transfer head 62 and rollers 58, 60. The rollers press form 32 against embossed information on cards 28, 30 and the exposed embossings 38 of carriers 36. Form 32 may have a carbon layer or be carbon impregnated. In the embodiment shown, carriers 36 are wheels settable by move ment of respective knobs 42 along slots 44. The visible information set is displayed at windows 46. Magnetic transfer head 62 comprises different strength permanent magnets (64, 66, 68), Fig. 2 (not shown), e.g. of rubber based barium ferrite, between cold rolled steel plates (70, 72, 74, 76).
Patent GB-1206708-A (GB)
Title: Assembling a lead wire to a terminal through a spring
IPC: H01R43/04
Filed: 1968-12-04
Abstract: 1,206,708. Attaching terminals to wire. AMP Inc. 4 Dec., 1968 [9 Jan., 1968], No. 57474/68. Heading B3A. A method of assembling a component lead wire 2 to a terminal 8 through a spring 6 comprises positioning the wire at one end of the spring and across its longitudinal axis, forming a bight in the wire and moving the bight through the spring, compressing the spring, locating a part of the wire bight in a ferrule of a terminal and securing the terminal to the wire. A carbon brush 4 of a dynamo-electric machine is placed in a cradle 76 and the wire 2 is located in a notch 104 in a wall 106 of a frame block 48, where it is retained by a spring 108. A brush spring 6 is placed in a channel 50 in registry with a notch 116. Compressed air is then supplied to a piston-cylinder assembly 74 causing a primary slide block 54 to move to the left in Fig. 8 towards a secondary slide block 84 and a threading rod 26 moves against the wire to form a bight therein. The bight is pushed through the spring 6 and through an opening in the end of a plate 162. When the slide block 54 meets the slide block 84, it is moved with the cradle 76 and the brush towards a crimping zone and movement of the wire 2 relative to the rod 26 ceases. At the same time a pin 142 on the block 54 moves along a cam surface 146 on a lever 132 thereby allowing it to pivot anticlockwise under the influence of a spring 140 to allow a plate 114 to move over the spring 6 and retain it in the channel 50. At the end of the stroke of the slide blocks 54, 84, a ram 40 begins its downward stroke and immediately afterwards a pin 34 is lowered into a notch 36 in the rod 26. Further movement of the ram causes the pin to move in an arcuate path by the action of a cam 240 engaging a roller 238 on a bell crank arm on which the pin 34 is mounted. This arcuate movement aligns a portion of the bight with the ferrule of a terminal and as the ram 40 completes its stroke a die 188 crimps the ferrule to the wire and a shear blade cuts off the surplus wire. As the ram starts its return stroke the slide block 54 is returned to its initial position by a spring 102 via a chain and sprocket drive. The slide block 84 remains in position as it is engaged by a latching boss 160 on a lever 154. As the slide block approaches the end of its travel the pin 142 engages camming surfaces 146, 150 to move the levers 132, 154 thereby moving the plate 114 clear of the channel 50 and allowing the slide block 84 to return under the influence of the spring 102. During this return stroke, the spring 6 expands pulling the terminal 8 off of the crimping anvil and after the assembly has been removed from the apparatus, the wire is threaded through a slot 18 so as to bring the end of the spring to bear on the terminal. In an alternative embodiment, the threading rod is formed with a hook-like slot near its tip. It is passed through the brush spring before picking up the wire and the bight is formed as the rod is withdrawn through the spring.
Patent GB-1445017-A (GB)
Title: Harrow tines
IPC: A01B23/02
Filed: 1973-12-12
Abstract: 1445017 Harrow tines KONGSKILDE MASKINFABRIK AS 12 Dec 1973 [13 Dec 1972] 57556/73 Heading A1B A harrow tine comprises a leaf spring 10 having an arcuate portion 11 engageable with a harrow frame (not shown), and attached by a bolt 13 to a rigid stalk 19 carrying a shave 20, the stalk 19 extending through a triangular having a width at least twelve times its opening 16 in the spring 10, and the spring 10 thickness and such a shape that tightening of the bolt 13 tensions the spring 10.
Patent GB-1325480-A (GB)
Title: Poppet valve engines
IPC: F01L1/30
Filed: 1970-12-15
Abstract: 1325480 I C engine valve gear LESTER INDUSTRIES Inc 15 Dec 1970 [15 Dec 1969] 59534/70 Heading F1B A poppet valve 32, engageable with a seat 31 in a cylinder head 7 removably connected to the cylinder block 6, is biased open by a spring 23 and closed, by a rotatable cam having an arcuate area 39 concentric with its axis 44 and a non-concentric area 43 of lesser radii between the ends of the arcuate area. The spring (60, 74) Figs.2 and 3 (not shown), may act on a split ring (67) intermediate the ends of the valve stem and the spring may be mounted in a chamber (61), Fig.2, (not shown) in the cylinder head (62). The cam may act on a roller (96), Figs.4 and 5 (not shown), in a cage (93) acting on the end of the valve stem remote from the valve head, the cam axis 44 being in a plane containing the stem axis. The cage part abutting the valve stem is a spring steel plate (99). The spring (106), Figs.6 and 7 (not shown), may act on the valve rocker (107) on one or other side of the rocker shaft (110). The cam may act on the rocker (107a), Fig.8 (not shown), through a laterally guided push rod (111) pivoted to the rocker intermediate the valve stem and the rocker shaft (110). The push rod (117), Fig.9 (not shown), may be pivotally connected to the end (114) of the valve stem remote from the valve head within a valve stem guide (115).
Patent GB-1432200-A (GB)
Title: Process of electrophoresis coating
IPC: C09D5/44
Filed: 1973-12-27
Abstract: 1432200 Aqueous synthetic resin coating compositions HITACHI Ltd 27 Dec 1973 [27 Dec 1972] 59825/73 Headings C3B C3P and C3R [Also in Division C7] An aqueous composition for electrophoretic coating (see Division C7) comprises an aqueous bath in which powder of size 10-100 microns of a water-insoluble resin and 10-200 parts by wt. per 100 parts of this resin of a watersoluble or -dispersible polycarboxylic acid resin deposited on the surface of the first resin have been dispersed under conditions which prevent agglomeration. In examples the compositions contain (1) particles of 75 Á or less of a bisphenol- A epoxy, dicyandiamide, carbon, silica and PV butyral together with an alkyd based on trimellitic acid, diethylene glycol, adipic acid and tall oil fatty acid; (2) the epoxy defined above together with a copolymer of styrene, methyl methacrylate, hydroxyethyl methacrylate, methacrylic acid and hexamethoxymethylolmelamine; (3) the alkyd defined above together with a polyester of particle size 50 Á or less based on isphthalic acid, neopentyl glycol, trimethylolpropane, "Cardura E" (Registered Trade Mark) and pyromellitic acid; (4) the alkyd defined above together with an acrylic resin of particle size 75 Á or less and based on styrene, butyl acrylate, ethylacrylate, glycidyl methacrylate and adipic acid; (5) the epoxy defined above and an acrylic copolymer based on methyl methacrylate, ethyl acrylate and methacrylic acid.
Patent GB-1450109-A (GB)
Title: Articles having silicate coatings
IPC: B05D5/06
Filed: 1973-12-28
Abstract: 1450109 Silicate coatings DAI NIPPON TORYO CO Ltd 28 Dec 1973 [29 Dec 1972] 60003/73 Heading B2E An article has a silicate coating which has a pattern including cracks, the coating comprising a silicate of the formula wherein x is from 0.5 to 10 and M is (1) and alkali metal, (ii) an amine group R 4 -N- wherein R is H, an alkanol radical or an alkyl radical, (iii) the group -N=C(NH 2 ) 2  or (iv) the group  The coating is preferably formed by sequentially coating a substrate, partially drying the coating, treating the coating with an acidic solution, washing off the solution and drying the coating completely. Preferred silicates are Na. K. Li. NH 4 <SP>+</SP>, morpholine. guanadine silicate. silicates of mono-. di-, tri- and tetramethanolamine, mono- and tetra-ethanolamine. mono-, di-, tri- and tetramethylamine, and di-, tri- and tetra-ethylamine, and mixtures of them. Suitable additives include hardeners such as Zn, Pb. Al powders, MgO, ZnO, Al 2 O 3 , PbO, CaO. Cr 2 O 3 . Mg(OH) 2 , Zn(OH) 2 , Al(OH) 3 , Pb(OH)@, NaF, Na@ SiF 6 , Al and Mg pyrophosphates. MgCO 3 , MgSO 4  or CO, gas. The agent applied pure, in solution or dispersion or may be mixed with a silicate solution (e.g. of silicate mentioned above) or sprayed-on separately to mix in situ, or, with CO@, used as a hardening atmosphere. Suitable treating acidic solutions are aqueous or alcoholic solutions which contain HCl, H 2 SO 4 , H 3 PO 4 , HBO 3 , HNO 3 , H 2 CO 3 , HCOH, CH 3 COH, C 2 H @ CO 2 H, C 3 H-CO 2 H, oxalic. malonic or elutaric acid, or acidic salts such as, AlCl 2 , BaCl 2 , MeCl 2 , Al 2 (SO 4 ) 2 , ZnSO 4 , MgSO 4 , Al(NO 2 ) 3 , Zn(NO 2 ) 3 , Ca(NO 3 ) 2 , AlPO 4 , Zn(PO @ ) 2 , or Na 2 PO 4 . Suitable substrates include slate, glass. Al, Fe and steel plates, wood, mortar, plywood and plastics. A primer layer may be formed on the substrates by completely drying any of the above mentioned silicate coatings or a phosphate primer coating. The substrates may be coated by spraving, flowing. brushing or roller coating. A clear top-coat may be applied.
Patent GB-1214200-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L23/31
Filed: 1968-12-31
Abstract: 1,214,200. Two-part couplings. FAIRCHILD CAMERA & INSTRUMENT CORP. 31 Dec., 1968 [2 Feb., 1968], No. 61966/68. Heading H2E. [Also in Division H1] A semi-conductor device comprises a semiconductor wafer 11 mounted centrally on an insulating, e.g. ceramic, substrate 10, a plurality of 90 degree-bent pins 17 extending through peripherally spaced holes 13 in the substrate 10 and along grooves 14 in its upper surface, connecting wires 23 connecting the top surfaces 21 of the pins 17 to bonding pads 32, e.g. of Au, on the semi-conductor wafer 11 and an insulating coating 24 covering the wafer 11, wires 23 and the top surfaces 21 of the pins 17. The wafer 11 may be bonded to the substrate 10 by an Au bonding layer 12 and the pins 17, which are preferably Au-plated with flattened top surfaces 21, may be sealed into the holes 13 by sealing glass 27. A friction fit may alternatively be employed, facilitated by non-uniform shaping of the pins 17. The coating 24 may comprise a first layer 25 of silicone rubber and a second layer 26 of an epoxy material, both applied as liquids.
Patent GB-699445-A (GB)
Abstract: 699,445. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 27, 1952, No. 21548/52. Class 98 (i). In. X-ray apparatus comprising a carriage which carries cross-arms supporting an X-ray tube, wherein either the tube may be fixed to the cross-arms which move with respect to the carriage, or the tube moves on the cross-arms which are fixed to the carriage, in order to displace the tube between exposures to produce stereoscopic radiographs, a scale is attached to the cross-arm carriage and an index is movable over the scale by a wheel having its circumference normally in engagement with a crossarm so that it is rotated by relative movement of the cross-arm and the cross-arm carriage. Alternatively, the scale may rotate with the wheel past an index fixed to the carriage. As shown, a plate 5 attached to the cross-arm carriage (not shown) carries a scale 6. A wheel 8 is carried on a shaft 9 journalled in a spring 11 which urges the wheel into contact with a crossarm 3. Shaft 9 has a pointer (not shown) which co-operates with scale 6. The tube is set to an intermediate position at which the pointer indicates 0 on the scale, and is then moved an equal distance on each side by means of the pointer and scale to make a pair of steroscopic radiographs. To set the scale, shaft 9 may be lowered to free wheel 8 from the cross-arm 3. It may be held in this position by a catch made of bent wire. In a modification shaft 9 is journalled in a block pivoted to the plate 5 and acted on by a spring to urge wheel 8 towards the cross-arm. In another modification shaft 9 is fixedly journalled in the carriage and wheel 8 has a flat which, in one position, allows relative movement of the carriage and cross-arm without movement of the wheel.