baber/WOPTO huggingface dataset:
Patent GB-592106-A (GB)
Title: Improvements in and relating to the production of esters of dibasic aliphatic acids
IPC: C07C69/34
Filed: 1945-05-18
Abstract: Esters of dibasic aliphatic acids which contain at least 6 carbon atoms in a chain are produced by condensing an aliphatic alcohol at a temperature of at least 190 DEG  C. with a diamide having the general formula H2N-OC-(CH2)n-CO-NH2, n being not less than 4, and simultaneously removing the liberated ammonia. Suitable diamides for use are adipamide and sebacamide which may be prepared as described in U.S.A.  Specification 2,109,941 by heating 1 mol. of urea with 1 mol. of adipic or sebacic acid at about 160-180 DEG  C. for 4-6 hours, other dibasic acids such as pimelic acid may also be used. When 1 mol of the diamide is condensed with 1 mol. of each of two different alcohols having the general formula R-OH and R1-OH, mixed esters of the type ROOC-(CH2)n-COOR1, R and R1 being alkyl groups and n not less than 4, can be obtained.  The process is particularly useful for preparing long chain esters having the same or different alkyl groups containing at least 12 carbon atoms and reaction between the higher alcohols used and the diamides is readily effected by heating them together in an open flask until evolution of ammonia closes.  When using the lower alcohols, the reaction must be effected in a closed vessel under pressure to obtain the desired reaction temperature and the liberated ammonia must be removed, e.g. by using an absorbent such as sodium bisulphate.  When dihydric or polyhydric alcohols are used, the products are polyesters, e.g. with equimolecular quantities of ethylene glycol and adipamide, the product is a polymeric ethylene adipate having a structural unit of the formula (-OC-(CH2)4-CO-O-(CH2)2-O-).  In examples: (1) cetyl adipate is obtained from adipamide and cetyl alcohol, heated together at 200-250 DEG  C.; (2) and (3) lauryl adipate and n-octadecyl adipate are similarly obtained, using lauryl alcohol and n-octadecyl alcohol respectively; (4), (5) and (6) n-octadecyl sebacate, lauryl sebacate and cetyl sebacate are obtained from sebacamide and n-octadecyl alcohol, lauryl alcohol and cetyl alcohol respectively; (7) ethyl adipate is obtained by heating ethyl alcohol and adipamide under pressure at 200-250 DEG  C.; (8) cetyl octadecyl adipate is obtained from adipamide and the corresponding alcohols; (9) sebacamide and ethylene glycol are reacted to produce a polymeric ethylene sebacate; (10) a resinous high molecular weight polyester is obtained from adipamide and glycerol.  The Provisional Specification is not limited to the use of an aliphatic alcohol.
Patent GB-352583-A (GB)
Title: Improvements in electrically operated clocks
IPC: G04C13/04
Filed: 1930-04-23
Abstract: 352,583. Electric clocks. MERCER, T. and MERCER, F., Eywood Road, St. Albans, Hertfordshire. April 23, 1930, No. 12589. [Class 139.] An electric clock system of master and secondaries has means whereby relay mechanism, normally actuated from the master clock to drive the secondaries, is manually disabled for a predetermined time, after which the relay automatically returns to normal conditions. The drawings show a particular secondary clock which has the relaydisabling means and contacts 19, 20 for sending impulses to the remainder of the secondary clocks in series. The secondary shown also has the manual stepping-on switch 21 and the interlocking relay 22 therefor which are described in Specification 352,582; terminals 4, 5 are connected to the master clock ; , 6, 7 to the other secondaries ; and 8, 9, 10 to the electric source. When a normal, time-transmitting impulse from the master reaches the secondary, the magnet 3 is energized and its armature lever 12, 13 closes contacts 19, 20 which thereupon send an impulse to the remaining secondaries. On the return of lever 12, 13 a pawl 15 feeds a ratchet 17 driving the hands of the secondary, as shown. The device for suppressing, for a given time, impulses over the circuit 19, 20 to the other secondaries, comprises an electrically connected clutch 23. The clutch member 24 rotates with the minute spindle 26, driven from wheel 17, and has two holes 34 and a collar 40 upon which presses an electric brush 41. The other clutch member 25 is axially slidable on arbor 26 against spring 47 and has a cross piece 30. 31 carrying pins 32, 33. When the clutch 'is engaged, pins 32, 33.are in holes 34 and a pin.51 on 25 contacts with a spring blade 52 on 24. A collar 36 on member 25 coacts with a brush 37. Hence, when the clutch is engaged, the circuit to the remaining secondaries through contacts 19, 20 is completed through the electric contact members 41, 52, 51, 37. Part 25 is slid to the right, Fig. 4, by depressing a plunger 42 which has an arm 45 and finger 46 for pressing against part 25. The minute arbor 26 has a knob 49, so that after the clutch has been broken (and hence 51, 52 separated), the member 24 may be rotated relatively to 25 ; rotation of the latter is prevented by a finger 48 engaging the wheel 29 on part 25. The hands of the secondary shown are thereby set back the required amount, to correct the difference on board ship, for example, between Greenwich time and the local time. The impulses from the master clock thereafter energize magnet 3 and operate ratchet 15, 17, minute spindle 26 and clutch member 24. No impulse reaches the other secondaries over contacts 19, 20, however, until the pins 32, 33 reach the holes 34 and the clutch engages and recloses contacts 51, 52. Thereafter, all secondaries advance together, showing the same time.
Patent GB-149775-A (GB)
Title: Improvements in or relating to methods of and means for the manufacture of turnshoes
IPC: A43D69/02
Filed: 1919-05-19
Abstract: 149,775. Bates, A., and British United Shoe Machinery Co., (United Shoe Machinery Corporation). May 19, 1919. Connecting uppers to insoles; stiffeners.-Relates to the attachment of moulded heel-end stiffeners in turnshoes. The upper is sewn to the sole wrong side out by an inseam extending around the fore part and waist and terminating at the heel breast line; the heel end portions of the sole and upper are then united, preferably by metallic fasteners while the upper is still wrong side out, and a moulded heel end stiffener or counter is permanently attached before or after the shoe is turned. Fig. 6 shows a suitable counter having an opening J for the large heel bone, and skived flanges secured together by tacks H. Fig. 7 shows a, counter with a separate heel seat K tacked to the flanges of the counter but with the ends of the wings adjacent to the heel breast capable of slight lateral yielding to accommodate to the shoe.
Patent GB-646872-A (GB)
Title: Improvements in or relating to rotary percussion drills and processes of making the same
IPC: E21B17/04
Filed: 1948-05-07
Abstract: 646,872. Percussive drills. TIMKEN ROLLER BEARING CO. May 7, 1948, No. 12606. Convention date, July 12, 1947. [Class 124] A drill bit for a rotary percussive drill has an axial socket of which the circumferential side wall has a longitudinal slit with one edge offset inwardly into locking engagement with the end of a drill rod disposed in the socket. As shown, a bit B having buttresses 5 and a socket with walls 2 has slots 6 made radially therein, the edge 8 being offset inwardly by mechanical pressure or, where the slit is made nearer one buttress than the other, by heating and quenching. The slit may terminate in a round hole 7. The slit may be made at an obtuse angle to the axis of the bit to form an acute angled edge and may engage a flat surface or the corner of a polygonal rod. The socket and rod may taper, Fig. 6, not shown and the slits may also taper, Fig. 11, not shown. The rod may be in position before offsetting the edge or the bit may be made with the edge offset before attachment to the rod.
Patent GB-126865-A (GB)
Title: Improvements in or relating to Hack Saw Machines.
IPC: B23D49/00
Filed: 1918-08-02
Abstract: 126,865. Perkin & Co., and Perkin, L. C. Aug. 2, 1918. Reciprocating-saw machines.-A device for raising the blades in hack-saw machines during the idle stroke comprises an arm j secured to the pivoted arm that carries the saw frame, a vertical screw m connected by a pin-and-slot connexion k, l to the arm j and having a thread of such a pitch that a nut p can fall by its own weight, and two disks q separated by ball bearings r. During the idle stroke, a cam s on the driving-shaft e rocks a lever v which engages beneath the nut p and raises the screw m and the saw frame, and during the outting stroke the nut p p rests on the disks q and the saw is allowed to progress downwards into the work by the screw m, causing the nut p to rotate on the bearings r. The saw frame may also be raised by a hand-lever connected to the lever v through a rod y and an arm x.
Patent GB-684863-A (GB)
Title: Machine and method for making hollow articles
IPC: C14C3/08
Filed: 1950-05-19
Abstract: 684,863. Moulding hollow plastic articles. MILLS, E. E. May 19, 1950 [Oct. 3, 1949], No. 12645/50. Class 87 (ii). In making plastic hollow ware a tube of softened organic plastic material is introduced in a mould, the tube is sealed at each end of the mould against leakage of a fluid confined in the tube and is pierced within the mould and a fluid is introduced in the tube within the mould through the pierced opening under a positive pressure sufficient to expand the plastic material to the shape of the mould. Pairs of mould halves, upper 16 and lower 15, are disposed around the periphery of a circular continuously rotatable table 11. The upper half of each mould is attached to a piston rod 17 which is actuated by fluid pressure in a cylinder 18 supported from the table. A hollow needle 28 passes through the upper half of each mould. The actuating cylinder 18 is connected by piping to a valve 38 and the needle 28 is similarly connected to a valve 39, the valves 38, 39 being connected by piping to a source of fluid pressure. The ends of the mould halves have sharp edges 33, 34 which may or may not just meet when the mould is closed. Coolant can pass from a tank 47 through chambers 36 in the mould halves and thence to a drain-pan 53, from which it may be pumped back to the tank. Softened plastic tubing 55 is extruded from a machine 54 and, as the open moulds on the table 11 are brought near the tubing, moving in the same direction as it is being extruded, it lies in the lower halves of successive moulds. As the table continues to move, a rocker arm 40 meets a cam 42 and thereby operates the valve 38 to allow fluid pressure in the cylinder 18 to actuate the piston rod 17 and close the upper mould half. The edges 33, 34 compress the tubing 55 and seal off a portion of it in the mould and the needle 28 pierces the material and enters the sealed-off portion. A rocker arm 40a meets a cam 42a and thereby operates the valve 39 to cause fluid to be forced through the needle 28 and expand the sealed-off portion of the tubing against the inside of the mould. Before the fluid pressure is released coolant is circulated through the chambers 36 to cause the material of the moulded article to set. As the table 11 continues its rotation the fluid pressure within the article is released and the upper mould half 16 raised, when the moulded article may be removed. The needle 28 is arranged to pierce an extension of the moulded article (e.g. the neck of a bottle) which is afterwards removed. If the sharp edges 33, 34 are slightly short of the meeting surfaces of the mould halves successive moulded articles will be connected by short lengths of the tubing 55, thus facilitating manual removal of the articles from the moulds.
Patent GB-182983-A (GB)
Title: Life buoy throwing apparatus
IPC: B63C9/00
Filed: 1921-05-03
Abstract: 182,983. Frahm, E. May 3, 1921. Buoy-throwing apparatus; detaching-gear.-A life-buoy throwing apparatus rotatable about a vertical axis comprises a rotating arm or flywheel to the periphery of which the buoy is secured by a clamping-device adapted to be released so as to allow the buoy to. be projected in the required direction by centrifugal force. The fly-wheel 5 is rotated through gearing 3 by a motor 2 mounted on a platform 1 adapted to be rotated on a column 24 by worm gearing 25. The clamping-device consists of a bell-crank 8 pivoted at 6 and influenced by a spring 7 coiled around a pin 15 slidably and rotatably mounted in the fly-wheel. The pin 15 carries at its end a lever 13 having a notch 12 engaging an arm 11 on the bell-crank so as to retain the buoy on the wheel. The buoy is released by displacing a slidable abutment 18 so as to cause the notched lever 13 to make a partial rotation, thus disengaging the bell-crank, which then opens under the action of centrifugal force. A sighting-device may be provided on the casing 17. In order to control the distance to which the buoy is thrown, a resistance for regulating the speed of the driving-motor is provided and used in conjunction with a revolution-indicator coupled to the fly-wheel and calibrated in units of length. The release of the clamping-device may be effected electromagnetically or by a centrifugally-operated device.
Patent GB-1199321-A (GB)
Title: Improvements in or relating to Heating Appliances
Inventor: LIVESEY JOHN JAMES
IPC: F24C1/14
Filed: 1967-03-17
Abstract: 1,199,321. Air heaters. HEATSTORE Ltd. 17 June, 1968 [17 March, 1967], No. 12752/67. Heading F4S. A radiant convecter gas fire comprises a casing 10 having ceramic radiants 13 behind a front aperture 12 above a burner bar 14, the combustion gases from which pass upwardly through a primary heat exchanger 16. A second burner bar 21 is mounted in the bottom of a convecter heat exchanger 20 spacedly mounted behind the primary heat exchanger 16 to which it is connected by a pipe 24 and the exchanger 20 is, in turn, connected by pipes 25 to a secondary heat exchange 22 spacedly mounted therebehind so that the gas from the exchangers 16, 20 passes into the upper end of the exchanger 22 for downward passage to an exhaust aperture 35. A tangential fan or impeller unit 27 draws air from a lower air inlet aperture and passes it through the gaps between exchangers 16, 20, exchangers 20, 22 and exchanger 22 and rear wall 23 of the casing to a warm air outlet 30 in the top wall of the casing. Air also passes upwardly from the aperture 12 in the front wall of the casing over the front face of the exchanger 16 to the outlet 30. A thermostat 37 is mounted on the exchanger 20 to be responsive to the temperature of the air flowing thereover so as to initiate and terminate operation of the impeller when a predetermined value is attained.
Patent GB-528199-A (GB)
Title: Improvements in or relating to electrical measuring instruments of the thermal type
IPC: G01R11/60
Filed: 1939-04-28
Abstract: 528,199. Current and voltage measurements ; compensating instruments for temperature errors. SANGAMO WESTON, Ltd. April 28, 1939, No. 12835. Convention date, Oct. 27, 1938. [Class 37 ] In a thermal instrument comprising at least two bimetallic elements operating in accordance with the temperature difference between them, these elements are enclosed in a shield so as to equalize the ambient thermal conditions affecting them. In the thermal demand meter shown, two oppositely wound bimetallic coils have their outer ends fixed and their inner ends connected to a shaft 10 carrying a pointer 11. Each of the bimetallic coils is enclosed in an individual housing 28, 29 of insulating material, these being mounted on bosses 46 on opposite sides of a plate 45 of insulating material which is positioned in a recess in a casting or frame 25. Formed integrally with the frame 25 is an open metal casing 30 in the form of one half of a closed cylinder which is fitted with a cover 31, Fig. 5, so as to form a complete cylindrical casing enclosing the housings 28, 29. The cover 31 is secured in place by screws passing through lugs 32, 33 into screw-holes 34 in the frame 25. The casings 30, 31 are of thin metal and therefore have high thermal conductivity and low thermal capacity, so that thermal conditions within the casing are equalized. Since the casings 30, 31 are supported at the centre, any heat conducted thereto from the frame 25 affects both housings 28, 29 equally. A bimetallic helix 35 is carried on the frame 25 and has one end secured at 36 and the other end provided with a movable arm 37 which is connected to the pointer 11 through a helical coil spring'(not shown), thereby adjusting the restraining force in accordance with the ambient temperature. A coil spring 40 is provided for adjusting the reading of the pointer 11, and has its inner end secured to the shaft 10 and its outer end attached to a rotatable member 41. Specification 528,200 is referred to.
Patent GB-316650-A (GB)
Title: Improvements in or relating to coin-controlled vending machines
IPC: G07F11/16
Filed: 1928-05-02
Abstract: 316,650. Thrissell Engineering Co., Ltd., and Dolman, H. J. May 2, 1928. Tickets, recording number issued. - A removable container for holding the articles, such as tickets, for sale is provided in a coincontrolled vending machine, a counting device being mounted on the container to record the number of articles abstracted, whether or not the container is in position in the machine when the articles are abstracted. The removable container 2, Fig. 6, comprises a casing attached to a frame portion which is secured in the machine by bolts through lugs 37. The frame has a bottom 7, Fig. 3, above which is an L- shaped bridge-piece forming a passage 16 through which the articles are fed' by a reciprocating pusher 10. The pusher has a depending pin 34 working in a slot in the base 7 and engaging a slot 48 in a coin-controlled delivery slide 46. A bolt 41 prevents the removal of the pusher 10 from the container. A spring-controlled shutter 12 hinged at 13 to the bridge-piece 11 prevents articles from being fraudulently abstracted through a slot 38 in a cover plate 18, the slot 38 being in alignment with the passage 16. A shoulder 47 is provided on the pusher to engage the articles. Each time the pusher feeds an article, it moves an arm 24 against a spring 25, and actuates the shaft 23 of a counter 20, there being a one-way drive between the shaft 23 and the counting wheels. In use, the container is filled at a central office and the reading of the counter taken, a lid 35 being closed and sealed. The container is then taken to the machine and secured in position by an attendant. When it is desired to replenish the machine, the container with the money in the cash drawer is taken to the office so that the number of articles, such as tickets, sold can be checked against the money received. The screws and bolts used in assembling the container are sealed so that they cannot be removed without detection. " Empty " notices, displaying.-When the container is empty, the lower arm of a lever 14 is swung into the container by a weight 28, thereby removing the upper arm 29 from a pivoted " empty " notice 26. The bar 26 will then swing under its own weight into a position to display the notice.
Patent GB-1202848-A (GB)
Title: Improvements in or relating to electrodeless high-frequency light source
Inventor: GRUSDEV VALENTIN ANATOLIEVICH
IPC: H01J65/04
Filed: 1969-03-12
Abstract: 1,202,848. Glow discharge lamps. V. A. GRUZDEV, A. A. BAKEEV, and B. V. SKVORTSOV. 12 March, 1969, No. 12967/69. Heading H1D. An exciting coil 3 inside an electrodeless highfrequency gas-discharge lamp 1 is enclosed in an insulating envelope 2 through which coolant may be passed. Each end of the multi-core copper wire 3 is secured to a bushing 6 which, together with a gasket 7 and hollow lead 9 of a high-frequency generator, is secured by a lock-nut 8 in an adaptor 5 glued to a quartz mount 4 sealed to an end of the quartz envelope 2. The ellipsoidal quartz bulb 1 is filled with xenon.
Patent GB-167579-A (GB)
Title: Improvements in or relating to potato peeling machines
IPC: A23N7/02
Filed: 1920-05-11
Abstract: 167,579. Wilkinson, A. E. May 11, 1920. Peeling potatoes.-In a potato-peeling machine having stationary cylindrical vertical abrasive walls a<1> and a rotating abrasive bottom, the bottom plate is secured to a bossed plate s carried on a short shaft p which is supported in bearings o, z and is rotated by a bevel-wheel 7 which occupies the space between the bearings c. z. The bottom member n of the receptacle carries both the bearings o, z, the former being integral with it and the latter integral if desired. A ball race y is provided in a recess in the faces of the plate s and member n. A second ball race may be placed between the wheel 7 and the bearing z. Bearings 4 support the driving-shaft 3 which is provided with fast and loose pulleys 5. Water is supplied through perforated pipes j, 9 and a drain hole x is provided in the member n.
Patent GB-825347-A (GB)
Title: Improvements in the production of bis-chloromethyl bisulphide
Inventor: JOULLIE MAURICE
Filed: 1958-04-24
Abstract: Bis-chloromethyl bisulphide (ClCH2.S.S.CH2 Cl) is obtained by causing chloromethyl sulphenyl chloride (ClCH2.S.Cl) and methyl mercaptan to react in a reaction medium consisting of water or aqueous methanol containing more than 50% by volume of water.  Some bismethyl disulphide is obtained as by-product and this may be converted by the action of chlorine into the chloromethyl sulphenyl chloride used as starting material.  The reaction to form the bis-chloromethyl bisulphide is preferably effected by first dispersing the chloromethyl sulphenyl chloride in the reaction medium and then gradually adding the methyl mercaptan to the cooled and agitated dispersion at such a rate that the temperature does not rise above 20 DEG  C.  Suitable reaction temperatures are from - 20 DEG  to +40 DEG C. and as the reaction medium it is preferred to use a mixture of water and methanol containing 60-90% by volume of water and 40-10% by volume of methanol. The crude product may be separated into its constituents by extraction with a substantially non-polar solvent, e.g. petroleum ether, which is immiscible with the reaction medium and which will dissolve the bis-methyl bisulphide. The extract and residue may then be distilled to isolate the bis-methyl bisulphide and the desired bis-chloromethyl bisulphide, respectively.  Some methyl chloromethyl bisulphide is also usually obtained as by-product on distillation of the residue. Specification 815,197 is referred to.
Patent GB-1057731-A (GB)
Title: Liquid fuel pumps for supplying fuel to internal combustion engines
Inventor: KEMP KENNETH ALBERT WALTERS
IPC: F02D1/12
Filed: 1964-03-31
Abstract: 1,057,731. Change-speed control. C.A.V. Ltd. March 23, 1965 [March 31, 1964], No. 13099/64. Heading F2D. [Also in Division F1] In a fuel injection pump on a vehicle I.C. engine, a valve (61) controlling the fuel supply to the injection pump (see Division F1) is controlled by the gear selector of the engine transmission to limit the supply of fuel to the engine and thereby the engine speed when the high gear ratio is selected, solenoid switch 49 in the selector gate 48 being engaged by the selector lever 47. In a vehicle having a multi-ratio axle selection of a high axle gear may control the pump valve.