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Class Information
Number: 177
Name: Weighing scales >
Description: This class provides for (1) scales that determine the weight of articles or material, (2) the control of the supply of material to, with or without the discharge from, a weigh chamber responsive to accumulation of a predetermined weight of the material in the weigh chamber.

Class Number	Class Name	No. of Patents
177/244	Assembly support	52
177/246	Beam	37
177/251	Adjustable load-arm connection	21
177/247	Coarse and fine sliders	8
177/250	Counterweight retention	9
177/248	Plural counterweight pickup	9
177/252	Plural counterweights	6
177/249	Transmission interconnected with slidable counterweight	4
177/125	Check controlled	8
177/126	Collapsible, foldable, knockdown	104
177/127	With carrying case	19
177/245	Combined	275
177/25.11	Computer	59
177/30	Ancillary weigher	1
177/26	Computer and weigher independently operated by common load holder	0
177/27	Weighing beam dial and computing beam dial with separate poises	0
177/28	Separately pivoted beams	0
177/29	Tabular-type computer	0
177/25.12	Electrical	21
177/25.13	Digital	230
177/25.18	Combinatorial scales	298
177/25.14	Multiplying or dividing scales	118
177/25.16	Calorie counting	36
177/25.17	Counting	37
177/25.15	Price	226
177/25.19	Weight history	109
177/31	Independent computer scale and index	0
177/32	With adjustable linkage to weight offsetting means	1
177/33	Coaxial pointers	1
177/34	Tabular-type computer	4
177/43	Calibrated index arm	1
177/41	Externally movable table	2
177/42	Axially rotatable	1
177/35	Slidable poise moves table	0
177/44	Table integral with balance beam	1
177/36	Weigher moves table	0
177/40	Encased disc	1
177/37	Rotatable drum	0
177/39	With additional reading window in drum housing	0
177/38	With manually operated reading assistance	0
177/129	Convertible	2
177/131	Hand manipulatable load pickup device	16
177/130	Hand truck	9
177/DIG.3	Digitizers electrical	86
177/DIG.2	Digitizers mechanical	1
177/DIG.4	Digitizers non-sensing	1
177/59	Discharge from weigher to receiver	66
177/190	Equal arm type	10
177/194	With bias toward balance	1
177/195	By spring	1
177/196	Torsion bearing type	2
177/198	With check link	3
177/191	With counterweight manipulating means	7
177/192	Elongated flexible counterweight	2
177/193	With indicator tower	0
177/197	With longitudinally movable poise	3
177/150	Equal-arm beam transfer mechanism	2
177/177	Illuminated	50
177/178	Projected	21
177/161	Load guide	14
177/162	Chute	9
177/163	Rail	46
177/253	Load holder	52
177/260	Adjusting means	11
177/254	Fluid transmission	51
177/261	Movably mounted pivot	5
177/256	Pivotally interconnected transmission levers	62
177/257	Integrated force delivered by lever extension from interconnection	10
177/258	Separate lever loaded by load-holder levers	5
177/259	With additional serially connected lever	2
177/262	Scale pan	78
177/263	Suspended	23
177/255	Sway or tilt prevention	119
177/151	Load-holder transfer mechanism	8
177/152	Unitary with weigher	3
177/153	Transmission disconnect means	3
177/183	Lubricator	1
177/DIG.5	Magnets	26
177/154	Means holding load-driven element against motion	57
177/159	At indicator	4
177/156	At transmission mechanism	15
177/157	Balance beam	7
177/158	Plural beams	0
177/155	Separates bearing parts	6
177/264	Miscellaneous	27
177/DIG.6	Photoelectric	66
177/199	Plural distinct load holders with common evaluator	69
177/200	Load comparing type	52
177/58	Plural weighers on rotary support	35
177/DIG.7	Pneumatic controls	3
177/164	Preset	63
177/166	Ancillary pointer	2
177/167	Fixed index or dial	3
177/175	In transmission	2
177/176	Counterweight	2
177/173	Indicator structure	22
177/174	Rack connection	6
177/171	Lever balance-type beam	15
177/172	Load-arm length	10
177/165	Responsive to load receiver	89
177/168	Spring support	15
177/169	Effective length of spring	15
177/170	Lever	15
177/1	Processes	353
177/DIG.8	Rr motion	11
177/160	Sack support	13
177/DIG.9	Scale bearings	169
177/14	Selectively preset cycle flow terminator	0
177/201	Self-positioning	7
177/207	Buoyancy type	17
177/235	Counterweight type	8
177/237	Progressive counterweight pickup	1
177/236	Variable fulcrum	2
177/210R	Electrical current generating or modifying	145
177/210C	Capacitors	108
177/210EM	Electromotive or electromagnetic force	125
177/210FP	Frequency changes or pulse counts	144
177/211	Strain gauge	404
177/208	Fluid transmission to pressure gauge	96
177/209	Interconnected load-supporting expansible chamber	29
177/202	Offsets over or under load	4
177/216	Pendulum	4
177/220	Drives indicator through transmission mechanism	0
177/221	Flexible member	0
177/222	Gearing	1
177/223	Rectilinear rack	0
177/217	Plural opposed	0
177/219	Tape-driven	1
177/218	Translatable	0
177/224	Pointer fixed to pendulum	3
177/212	Repositioning in response to deflection under load	145
177/213	Electrically actuated poise	5
177/215	Speed control of poise	1
177/214	With indicator of poise position	5
177/225	Spring	64
177/229	Cantilever	293
177/232	Coil spring in sleeve casing	16
177/233	With vertical pointer slit	18
177/230	Force modifier connects spring and load-holder	12
177/231	Load-holder steadying structure and spring carried by casing	9
177/234	Magnified indication of spring deformation	5
177/226	Temperature compensator	3
177/228	Acts on spring	0
177/227	Modifies leverage	1
177/203	Supplemental weight offsetting means	3
177/205	Remote indicator	1
177/206	Slidable weight	2
177/204	Transferred responsive to self-positioning means	4
177/184	Shock absorber, damper	54
177/185	Electrical or magnetic	110
177/186	Indicator mechanism	6
177/189	Load holder	37
177/187	Load-holder transmission mechanism	57
177/188	Fulcrumed lever	12
177/132	Structural installation	74
177/142	Building	16
177/144	Furniture or room fixture	244
177/133	Geographic	27
177/134	Pit	68
177/135	With guard or shield	8
177/143	Refrigerator	4
177/136	Vehicle	239
177/140	Hand truck	23
177/141	Hydraulic weigher	93
177/137	Running gear springs	49
177/138	With indicator disconnect means	9
177/139	Unitary load transferrer and weigher	84
177/DIG.10	Telemetric	2
177/DIG.11	Vibrators	37
177/60	Weigher responsive material control	29
177/90	Alternating weigh chambers	5
177/91	Divided unit	8
177/94	Oscillating	3
177/95	Valve means correlated with weigh chamber	0
177/97	Mounted externally of weigh chamber	0
177/96	Opened by gravity	1
177/92	With relatively oscillating partition	3
177/93	Pivoted feed diverter	1
177/98	Feed diverter	7
177/99	With discharge valve	2
177/102	Oscillating	2
177/101	Siphon discharge	0
177/100	Valved discharge	0
177/114	Correlated feed and discharge	42
177/115	Oscillating weigh chamber	3
177/105	Discharge valve or gate	48
177/107	Closing initiates feed	2
177/113	Latch release	3
177/111	Mechanically interconnected with feed valve	3
177/106	Opening initiated by feed terminator	3
177/108	Power actuated	28
177/109	Clutched	6
177/110	Magnetically operated	3
177/112	With linkage operator	11
177/116	Feed	87
177/119	Conveyer	105
177/121	Variable speed	81
177/120	With feed cutoff	26
177/122	Sequentially actuated flow control means	36
177/123	Distinct controllers	46
177/117	Weigh chamber placement initiates flow	2
177/118	With receiver retainer	11
177/68	Flow terminator requiring external reset	2
177/71	Feed and discharge	1
177/72	Manually initiated discharge	0
177/79	Holding magnet	1
177/74	Latch release	0
177/78	Reciprocating closure	1
177/75	Sequential latch release	0
177/76	With magnetic operator	0
177/77	With serially connected switch	1
177/69	Plural feed, simultaneous cutoff	0
177/73	Receiver operated reset	0
177/70	Sequential feeding, plural ingredients	66
177/82	Overload removal	6
177/103	Plural chambers	29
177/104	With simultaneous discharge	3
177/62	Remote discharge station	1
177/83	Rotary	18
177/85	Electromagnetic latch release	1
177/84	Power-driven	13
177/86	With preliminary translation	0
177/87	Initiates feed control operation	0
177/88	By cam on weigh chamber	2
177/89	Stationary weigh chamber	1
177/61	Translatable among plural sources	1
177/63	With additional material-presence responsive means	4
177/64	Controlling feed	9
177/66	And discharge	7
177/67	Overload removal	1
177/65	To alternating weigh chambers	2
177/80	With external intercontrol	2
177/81	Initial partial charge	1
177/45	With alarm or signal	62
177/47	In balance	4
177/48	Electric	7
177/46	In unbalance	11
177/49	Of additional counterpoise	0
177/179	With bearing shield	12
177/180	With casing closure or shield	75
177/181	Transparent	25
177/182	Lens	2
177/238	With casing	117
177/239	Base	13
177/243	Penetrated by load-holder support	20
177/240	With standard	3
177/241	Carrying additional housing	10
177/242	Access opening in cylindrical wall	0
177/52	With conveying means handling successive receivers	48
177/53	Receiver presence responsive	7
177/54	Rotary	18
177/55	Separate weigh chamber	7
177/56	Separate weigh chamber	4
177/57	Simultaneously operated weigh chambers	3
177/124	With lock or seal	14
177/2	With recorder	26
177/10	External marker operator	2
177/11	Recorder element mounted on poise	1
177/6	Of both gross and tare on one record receiver	7
177/7	Responsive to means sensing removal of material	2
177/12	Responsive to timer, or completion of weighing operation	6
177/13	Weigher sets type	4
177/3	With computing or totalizing means	15
177/8	With record receiver advance	1
177/9	By weigher	1
177/4	With recording of a factor additional to weight	59
177/5	Weight identification	25
177/128	With repair or assembly means	47
177/50	With testing	390
177/51	Coin size	4
177/15	With total register	10
177/18	Cycle totalizer	3
177/23	Discharge valve operated	1
177/19	Single totalizer operated by plural weighers	2
177/21	By intermittently used one of plural weighers	4
177/20	By preliminary translation of rotary weighers	0
177/22	Weigh beam operated	0
177/24	Weigh chamber operated	2
177/16	Integrator of steadily flowing fluent material	63
177/17	Of distinct successive loads	10
177/145	With weigher loading or unloading means	344
177/148	Hand manipulatable weigher	55
177/149	Container type	12
177/147	Hoist	80
177/146	Jack	60